Adding upstream version 0.11.0.upstream/0.11.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

78 files changed, 9935 insertions, 0 deletions

diff --git a/vendor/clue/block-react/LICENSE b/vendor/clue/block-react/LICENSE
new file mode 100644
index 0000000..dc09d1e
--- /dev/null
+++ b/vendor/clue/block-react/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2015 Christian Lück
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/vendor/clue/block-react/composer.json b/vendor/clue/block-react/composer.json
new file mode 100644
index 0000000..ddfc6c8
--- /dev/null
+++ b/vendor/clue/block-react/composer.json
@@ -0,0 +1,29 @@
+{
+    "name": "clue/block-react",
+    "description": "Lightweight library that eases integrating async components built for ReactPHP in a traditional, blocking environment.",
+    "keywords": ["blocking", "await", "sleep", "Event Loop", "synchronous", "Promise", "ReactPHP", "async"],
+    "homepage": "https://github.com/clue/reactphp-block",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Christian Lück",
+            "email": "christian@clue.engineering"
+        }
+    ],
+    "autoload": {
+        "files": [ "src/functions_include.php" ]
+    },
+    "autoload-dev": {
+        "psr-4": { "Clue\\Tests\\React\\Block\\": "tests/" }
+    },
+    "require": {
+        "php": ">=5.3",
+        "react/event-loop": "^1.2",
+        "react/promise": "^3.0 || ^2.7 || ^1.2.1",
+        "react/promise-timer": "^1.5"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^9.3 || ^5.7 || ^4.8.35",
+        "react/http": "^1.4"
+    }
+}
diff --git a/vendor/clue/block-react/src/functions.php b/vendor/clue/block-react/src/functions.php
new file mode 100644
index 0000000..6afe2e0
--- /dev/null
+++ b/vendor/clue/block-react/src/functions.php
@@ -0,0 +1,357 @@
+<?php
+
+namespace Clue\React\Block;
+
+use React\EventLoop\Loop;
+use React\EventLoop\LoopInterface;
+use React\Promise;
+use React\Promise\CancellablePromiseInterface;
+use React\Promise\PromiseInterface;
+use React\Promise\Timer;
+use React\Promise\Timer\TimeoutException;
+use Exception;
+use UnderflowException;
+
+/**
+ * Wait/sleep for `$time` seconds.
+ *
+ * ```php
+ * Clue\React\Block\sleep(1.5, $loop);
+ * ```
+ *
+ * This function will only return after the given `$time` has elapsed. In the
+ * meantime, the event loop will run any other events attached to the same loop
+ * until the timer fires. If there are no other events attached to this loop,
+ * it will behave similar to the built-in [`sleep()`](https://www.php.net/manual/en/function.sleep.php).
+ *
+ * Internally, the `$time` argument will be used as a timer for the loop so that
+ * it keeps running until this timer triggers. This implies that if you pass a
+ * really small (or negative) value, it will still start a timer and will thus
+ * trigger at the earliest possible time in the future.
+ *
+ * This function takes an optional `LoopInterface|null $loop` parameter that can be used to
+ * pass the event loop instance to use. You can use a `null` value here in order to
+ * use the [default loop](https://github.com/reactphp/event-loop#loop). This value
+ * SHOULD NOT be given unless you're sure you want to explicitly use a given event
+ * loop instance.
+ *
+ * Note that this function will assume control over the event loop. Internally, it
+ * will actually `run()` the loop until the timer fires and then calls `stop()` to
+ * terminate execution of the loop. This means this function is more suited for
+ * short-lived program executions when using async APIs is not feasible. For
+ * long-running applications, using event-driven APIs by leveraging timers
+ * is usually preferable.
+ *
+ * @param float $time
+ * @param ?LoopInterface $loop
+ * @return void
+ */
+function sleep($time, LoopInterface $loop = null)
+{
+    await(Timer\resolve($time, $loop), $loop);
+}
+
+/**
+ * Block waiting for the given `$promise` to be fulfilled.
+ *
+ * ```php
+ * $result = Clue\React\Block\await($promise, $loop);
+ * ```
+ *
+ * This function will only return after the given `$promise` has settled, i.e.
+ * either fulfilled or rejected. In the meantime, the event loop will run any
+ * events attached to the same loop until the promise settles.
+ *
+ * Once the promise is fulfilled, this function will return whatever the promise
+ * resolved to.
+ *
+ * Once the promise is rejected, this will throw whatever the promise rejected
+ * with. If the promise did not reject with an `Exception`, then this function
+ * will throw an `UnexpectedValueException` instead.
+ *
+ * ```php
+ * try {
+ *     $result = Clue\React\Block\await($promise, $loop);
+ *     // promise successfully fulfilled with $result
+ *     echo 'Result: ' . $result;
+ * } catch (Exception $exception) {
+ *     // promise rejected with $exception
+ *     echo 'ERROR: ' . $exception->getMessage();
+ * }
+ * ```
+ *
+ * See also the [examples](../examples/).
+ *
+ * This function takes an optional `LoopInterface|null $loop` parameter that can be used to
+ * pass the event loop instance to use. You can use a `null` value here in order to
+ * use the [default loop](https://github.com/reactphp/event-loop#loop). This value
+ * SHOULD NOT be given unless you're sure you want to explicitly use a given event
+ * loop instance.
+ *
+ * If no `$timeout` argument is given and the promise stays pending, then this
+ * will potentially wait/block forever until the promise is settled. To avoid
+ * this, API authors creating promises are expected to provide means to
+ * configure a timeout for the promise instead. For more details, see also the
+ * [`timeout()` function](https://github.com/reactphp/promise-timer#timeout).
+ *
+ * If the deprecated `$timeout` argument is given and the promise is still pending once the
+ * timeout triggers, this will `cancel()` the promise and throw a `TimeoutException`.
+ * This implies that if you pass a really small (or negative) value, it will still
+ * start a timer and will thus trigger at the earliest possible time in the future.
+ *
+ * Note that this function will assume control over the event loop. Internally, it
+ * will actually `run()` the loop until the promise settles and then calls `stop()` to
+ * terminate execution of the loop. This means this function is more suited for
+ * short-lived promise executions when using promise-based APIs is not feasible.
+ * For long-running applications, using promise-based APIs by leveraging chained
+ * `then()` calls is usually preferable.
+ *
+ * @param PromiseInterface $promise
+ * @param ?LoopInterface   $loop
+ * @param ?float           $timeout [deprecated] (optional) maximum timeout in seconds or null=wait forever
+ * @return mixed returns whatever the promise resolves to
+ * @throws Exception when the promise is rejected
+ * @throws TimeoutException if the $timeout is given and triggers
+ */
+function await(PromiseInterface $promise, LoopInterface $loop = null, $timeout = null)
+{
+    $wait = true;
+    $resolved = null;
+    $exception = null;
+    $rejected = false;
+    $loop = $loop ?: Loop::get();
+
+    if ($timeout !== null) {
+        $promise = Timer\timeout($promise, $timeout, $loop);
+    }
+
+    $promise->then(
+        function ($c) use (&$resolved, &$wait, $loop) {
+            $resolved = $c;
+            $wait = false;
+            $loop->stop();
+        },
+        function ($error) use (&$exception, &$rejected, &$wait, $loop) {
+            $exception = $error;
+            $rejected = true;
+            $wait = false;
+            $loop->stop();
+        }
+    );
+
+    // Explicitly overwrite argument with null value. This ensure that this
+    // argument does not show up in the stack trace in PHP 7+ only.
+    $promise = null;
+
+    while ($wait) {
+        $loop->run();
+    }
+
+    if ($rejected) {
+        if (!$exception instanceof \Exception && !$exception instanceof \Throwable) {
+            $exception = new \UnexpectedValueException(
+                'Promise rejected with unexpected value of type ' . (is_object($exception) ? get_class($exception) : gettype($exception))
+            );
+        } elseif (!$exception instanceof \Exception) {
+            $exception = new \UnexpectedValueException(
+                'Promise rejected with unexpected ' . get_class($exception) . ': ' . $exception->getMessage(),
+                $exception->getCode(),
+                $exception
+            );
+        }
+
+        throw $exception;
+    }
+
+    return $resolved;
+}
+
+/**
+ * Wait for ANY of the given promises to be fulfilled.
+ *
+ * ```php
+ * $promises = array(
+ *     $promise1,
+ *     $promise2
+ * );
+ *
+ * $firstResult = Clue\React\Block\awaitAny($promises, $loop);
+ *
+ * echo 'First result: ' . $firstResult;
+ * ```
+ *
+ * See also the [examples](../examples/).
+ *
+ * This function will only return after ANY of the given `$promises` has been
+ * fulfilled or will throw when ALL of them have been rejected. In the meantime,
+ * the event loop will run any events attached to the same loop.
+ *
+ * Once ANY promise is fulfilled, this function will return whatever this
+ * promise resolved to and will try to `cancel()` all remaining promises.
+ *
+ * Once ALL promises reject, this function will fail and throw an `UnderflowException`.
+ * Likewise, this will throw if an empty array of `$promises` is passed.
+ *
+ * This function takes an optional `LoopInterface|null $loop` parameter that can be used to
+ * pass the event loop instance to use. You can use a `null` value here in order to
+ * use the [default loop](https://github.com/reactphp/event-loop#loop). This value
+ * SHOULD NOT be given unless you're sure you want to explicitly use a given event
+ * loop instance.
+ *
+ * If no `$timeout` argument is given and ALL promises stay pending, then this
+ * will potentially wait/block forever until the promise is fulfilled. To avoid
+ * this, API authors creating promises are expected to provide means to
+ * configure a timeout for the promise instead. For more details, see also the
+ * [`timeout()` function](https://github.com/reactphp/promise-timer#timeout).
+ *
+ * If the deprecated `$timeout` argument is given and ANY promises are still pending once
+ * the timeout triggers, this will `cancel()` all pending promises and throw a
+ * `TimeoutException`. This implies that if you pass a really small (or negative)
+ * value, it will still start a timer and will thus trigger at the earliest
+ * possible time in the future.
+ *
+ * Note that this function will assume control over the event loop. Internally, it
+ * will actually `run()` the loop until the promise settles and then calls `stop()` to
+ * terminate execution of the loop. This means this function is more suited for
+ * short-lived promise executions when using promise-based APIs is not feasible.
+ * For long-running applications, using promise-based APIs by leveraging chained
+ * `then()` calls is usually preferable.
+ *
+ * @param PromiseInterface[]  $promises
+ * @param ?LoopInterface      $loop
+ * @param ?float              $timeout [deprecated] (optional) maximum timeout in seconds or null=wait forever
+ * @return mixed returns whatever the first promise resolves to
+ * @throws Exception if ALL promises are rejected
+ * @throws TimeoutException if the $timeout is given and triggers
+ */
+function awaitAny(array $promises, LoopInterface $loop = null, $timeout = null)
+{
+    // Explicitly overwrite argument with null value. This ensure that this
+    // argument does not show up in the stack trace in PHP 7+ only.
+    $all = $promises;
+    $promises = null;
+
+    try {
+        // Promise\any() does not cope with an empty input array, so reject this here
+        if (!$all) {
+            throw new UnderflowException('Empty input array');
+        }
+
+        $ret = await(Promise\any($all)->then(null, function () {
+            // rejects with an array of rejection reasons => reject with Exception instead
+            throw new Exception('All promises rejected');
+        }), $loop, $timeout);
+    } catch (TimeoutException $e) {
+        // the timeout fired
+        // => try to cancel all promises (rejected ones will be ignored anyway)
+        _cancelAllPromises($all);
+
+        throw $e;
+    } catch (Exception $e) {
+        // if the above throws, then ALL promises are already rejected
+        // => try to cancel all promises (rejected ones will be ignored anyway)
+        _cancelAllPromises($all);
+
+        throw new UnderflowException('No promise could resolve', 0, $e);
+    }
+
+    // if we reach this, then ANY of the given promises resolved
+    // => try to cancel all promises (settled ones will be ignored anyway)
+    _cancelAllPromises($all);
+
+    return $ret;
+}
+
+/**
+ * Wait for ALL of the given promises to be fulfilled.
+ *
+ * ```php
+ * $promises = array(
+ *     $promise1,
+ *     $promise2
+ * );
+ *
+ * $allResults = Clue\React\Block\awaitAll($promises, $loop);
+ *
+ * echo 'First promise resolved with: ' . $allResults[0];
+ * ```
+ *
+ * See also the [examples](../examples/).
+ *
+ * This function will only return after ALL of the given `$promises` have been
+ * fulfilled or will throw when ANY of them have been rejected. In the meantime,
+ * the event loop will run any events attached to the same loop.
+ *
+ * Once ALL promises are fulfilled, this will return an array with whatever
+ * each promise resolves to. Array keys will be left intact, i.e. they can
+ * be used to correlate the return array to the promises passed.
+ *
+ * Once ANY promise rejects, this will try to `cancel()` all remaining promises
+ * and throw an `Exception`. If the promise did not reject with an `Exception`,
+ * then this function will throw an `UnexpectedValueException` instead.
+ *
+ * This function takes an optional `LoopInterface|null $loop` parameter that can be used to
+ * pass the event loop instance to use. You can use a `null` value here in order to
+ * use the [default loop](https://github.com/reactphp/event-loop#loop). This value
+ * SHOULD NOT be given unless you're sure you want to explicitly use a given event
+ * loop instance.
+ *
+ * If no `$timeout` argument is given and ANY promises stay pending, then this
+ * will potentially wait/block forever until the promise is fulfilled. To avoid
+ * this, API authors creating promises are expected to provide means to
+ * configure a timeout for the promise instead. For more details, see also the
+ * [`timeout()` function](https://github.com/reactphp/promise-timer#timeout).
+ *
+ * If the deprecated `$timeout` argument is given and ANY promises are still pending once
+ * the timeout triggers, this will `cancel()` all pending promises and throw a
+ * `TimeoutException`. This implies that if you pass a really small (or negative)
+ * value, it will still start a timer and will thus trigger at the earliest
+ * possible time in the future.
+ *
+ * Note that this function will assume control over the event loop. Internally, it
+ * will actually `run()` the loop until the promise settles and then calls `stop()` to
+ * terminate execution of the loop. This means this function is more suited for
+ * short-lived promise executions when using promise-based APIs is not feasible.
+ * For long-running applications, using promise-based APIs by leveraging chained
+ * `then()` calls is usually preferable.
+ *
+ * @param PromiseInterface[]  $promises
+ * @param ?LoopInterface      $loop
+ * @param ?float              $timeout [deprecated] (optional) maximum timeout in seconds or null=wait forever
+ * @return array returns an array with whatever each promise resolves to
+ * @throws Exception when ANY promise is rejected
+ * @throws TimeoutException if the $timeout is given and triggers
+ */
+function awaitAll(array $promises, LoopInterface $loop = null, $timeout = null)
+{
+    // Explicitly overwrite argument with null value. This ensure that this
+    // argument does not show up in the stack trace in PHP 7+ only.
+    $all = $promises;
+    $promises = null;
+
+    try {
+        return await(Promise\all($all), $loop, $timeout);
+    } catch (Exception $e) {
+        // ANY of the given promises rejected or the timeout fired
+        // => try to cancel all promises (rejected ones will be ignored anyway)
+        _cancelAllPromises($all);
+
+        throw $e;
+    }
+}
+
+/**
+ * internal helper function used to iterate over an array of Promise instances and cancel() each
+ *
+ * @internal
+ * @param array $promises
+ * @return void
+ */
+function _cancelAllPromises(array $promises)
+{
+    foreach ($promises as $promise) {
+        if ($promise instanceof PromiseInterface && ($promise instanceof CancellablePromiseInterface || !\interface_exists('React\Promise\CancellablePromiseInterface'))) {
+            $promise->cancel();
+        }
+    }
+}
diff --git a/vendor/clue/block-react/src/functions_include.php b/vendor/clue/block-react/src/functions_include.php
new file mode 100644
index 0000000..b3ad74c
--- /dev/null
+++ b/vendor/clue/block-react/src/functions_include.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace Clue\React\Block;
+
+if (!function_exists('Clue\\React\\Block\\sleep')) {
+    require __DIR__ . '/functions.php';
+}
+
diff --git a/vendor/clue/buzz-react/LICENSE b/vendor/clue/buzz-react/LICENSE
new file mode 100644
index 0000000..da15612
--- /dev/null
+++ b/vendor/clue/buzz-react/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2013 Christian Lück
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/vendor/clue/buzz-react/composer.json b/vendor/clue/buzz-react/composer.json
new file mode 100644
index 0000000..99e6d69
--- /dev/null
+++ b/vendor/clue/buzz-react/composer.json
@@ -0,0 +1,38 @@
+{
+    "name": "clue/buzz-react",
+    "description": "Simple, async PSR-7 HTTP client for concurrently processing any number of HTTP requests, built on top of ReactPHP",
+    "keywords": ["HTTP client", "PSR-7", "HTTP", "ReactPHP", "async"],
+    "homepage": "https://github.com/clue/reactphp-buzz",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Christian Lück",
+            "email": "christian@clue.engineering"
+        }
+    ],
+    "autoload": {
+        "psr-4": { "Clue\\React\\Buzz\\": "src/" }
+    },
+    "autoload-dev": {
+        "psr-4": { "Clue\\Tests\\React\\Buzz\\": "tests/" }
+    },
+    "require": {
+        "php": ">=5.3",
+        "psr/http-message": "^1.0",
+        "react/event-loop": "^1.0 || ^0.5",
+        "react/http-client": "^0.5.10",
+        "react/promise": "^2.2.1 || ^1.2.1",
+        "react/promise-stream": "^1.0 || ^0.1.2",
+        "react/socket": "^1.1",
+        "react/stream": "^1.0 || ^0.7",
+        "ringcentral/psr7": "^1.2"
+    },
+    "require-dev": {
+        "clue/block-react": "^1.0",
+        "clue/http-proxy-react": "^1.3",
+        "clue/reactphp-ssh-proxy": "^1.0",
+        "clue/socks-react": "^1.0",
+        "phpunit/phpunit": "^9.0 || ^5.7 || ^4.8.35",
+        "react/http": "^0.8"
+    }
+}
diff --git a/vendor/clue/buzz-react/src/Browser.php b/vendor/clue/buzz-react/src/Browser.php
new file mode 100644
index 0000000..8f1a751
--- /dev/null
+++ b/vendor/clue/buzz-react/src/Browser.php
@@ -0,0 +1,867 @@
+<?php
+
+namespace Clue\React\Buzz;
+
+use Clue\React\Buzz\Io\Sender;
+use Clue\React\Buzz\Io\Transaction;
+use Clue\React\Buzz\Message\MessageFactory;
+use InvalidArgumentException;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\UriInterface;
+use React\EventLoop\LoopInterface;
+use React\Promise\PromiseInterface;
+use React\Socket\ConnectorInterface;
+use React\Stream\ReadableStreamInterface;
+
+class Browser
+{
+    private $transaction;
+    private $messageFactory;
+    private $baseUrl;
+    private $protocolVersion = '1.1';
+
+    /**
+     * The `Browser` is responsible for sending HTTP requests to your HTTP server
+     * and keeps track of pending incoming HTTP responses.
+     * It also registers everything with the main [`EventLoop`](https://github.com/reactphp/event-loop#usage).
+     *
+     * ```php
+     * $loop = React\EventLoop\Factory::create();
+     *
+     * $browser = new Clue\React\Buzz\Browser($loop);
+     * ```
+     *
+     * If you need custom connector settings (DNS resolution, TLS parameters, timeouts,
+     * proxy servers etc.), you can explicitly pass a custom instance of the
+     * [`ConnectorInterface`](https://github.com/reactphp/socket#connectorinterface):
+     *
+     * ```php
+     * $connector = new React\Socket\Connector($loop, array(
+     *     'dns' => '127.0.0.1',
+     *     'tcp' => array(
+     *         'bindto' => '192.168.10.1:0'
+     *     ),
+     *     'tls' => array(
+     *         'verify_peer' => false,
+     *         'verify_peer_name' => false
+     *     )
+     * ));
+     *
+     * $browser = new Clue\React\Buzz\Browser($loop, $connector);
+     * ```
+     *
+     * @param LoopInterface $loop
+     * @param ConnectorInterface|null $connector [optional] Connector to use.
+     *     Should be `null` in order to use default Connector.
+     */
+    public function __construct(LoopInterface $loop, ConnectorInterface $connector = null)
+    {
+        $this->messageFactory = new MessageFactory();
+        $this->transaction = new Transaction(
+            Sender::createFromLoop($loop, $connector, $this->messageFactory),
+            $this->messageFactory,
+            $loop
+        );
+    }
+
+    /**
+     * Sends an HTTP GET request
+     *
+     * ```php
+     * $browser->get($url)->then(function (Psr\Http\Message\ResponseInterface $response) {
+     *     var_dump((string)$response->getBody());
+     * });
+     * ```
+     *
+     * See also [example 01](../examples/01-google.php).
+     *
+     * > For BC reasons, this method accepts the `$url` as either a `string`
+     *   value or as an `UriInterface`. It's recommended to explicitly cast any
+     *   objects implementing `UriInterface` to `string`.
+     *
+     * @param string|UriInterface $url URL for the request.
+     * @param array               $headers
+     * @return PromiseInterface<ResponseInterface>
+     */
+    public function get($url, array $headers = array())
+    {
+        return $this->requestMayBeStreaming('GET', $url, $headers);
+    }
+
+    /**
+     * Sends an HTTP POST request
+     *
+     * ```php
+     * $browser->post(
+     *     $url,
+     *     [
+     *         'Content-Type' => 'application/json'
+     *     ],
+     *     json_encode($data)
+     * )->then(function (Psr\Http\Message\ResponseInterface $response) {
+     *     var_dump(json_decode((string)$response->getBody()));
+     * });
+     * ```
+     *
+     * See also [example 04](../examples/04-post-json.php).
+     *
+     * This method is also commonly used to submit HTML form data:
+     *
+     * ```php
+     * $data = [
+     *     'user' => 'Alice',
+     *     'password' => 'secret'
+     * ];
+     *
+     * $browser->post(
+     *     $url,
+     *     [
+     *         'Content-Type' => 'application/x-www-form-urlencoded'
+     *     ],
+     *     http_build_query($data)
+     * );
+     * ```
+     *
+     * This method will automatically add a matching `Content-Length` request
+     * header if the outgoing request body is a `string`. If you're using a
+     * streaming request body (`ReadableStreamInterface`), it will default to
+     * using `Transfer-Encoding: chunked` or you have to explicitly pass in a
+     * matching `Content-Length` request header like so:
+     *
+     * ```php
+     * $body = new React\Stream\ThroughStream();
+     * $loop->addTimer(1.0, function () use ($body) {
+     *     $body->end("hello world");
+     * });
+     *
+     * $browser->post($url, array('Content-Length' => '11'), $body);
+     * ```
+     *
+     * > For BC reasons, this method accepts the `$url` as either a `string`
+     *   value or as an `UriInterface`. It's recommended to explicitly cast any
+     *   objects implementing `UriInterface` to `string`.
+     *
+     * @param string|UriInterface            $url     URL for the request.
+     * @param array                          $headers
+     * @param string|ReadableStreamInterface $contents
+     * @return PromiseInterface<ResponseInterface>
+     */
+    public function post($url, array $headers = array(), $contents = '')
+    {
+        return $this->requestMayBeStreaming('POST', $url, $headers, $contents);
+    }
+
+    /**
+     * Sends an HTTP HEAD request
+     *
+     * ```php
+     * $browser->head($url)->then(function (Psr\Http\Message\ResponseInterface $response) {
+     *     var_dump($response->getHeaders());
+     * });
+     * ```
+     *
+     * > For BC reasons, this method accepts the `$url` as either a `string`
+     *   value or as an `UriInterface`. It's recommended to explicitly cast any
+     *   objects implementing `UriInterface` to `string`.
+     *
+     * @param string|UriInterface $url     URL for the request.
+     * @param array               $headers
+     * @return PromiseInterface<ResponseInterface>
+     */
+    public function head($url, array $headers = array())
+    {
+        return $this->requestMayBeStreaming('HEAD', $url, $headers);
+    }
+
+    /**
+     * Sends an HTTP PATCH request
+     *
+     * ```php
+     * $browser->patch(
+     *     $url,
+     *     [
+     *         'Content-Type' => 'application/json'
+     *     ],
+     *     json_encode($data)
+     * )->then(function (Psr\Http\Message\ResponseInterface $response) {
+     *     var_dump(json_decode((string)$response->getBody()));
+     * });
+     * ```
+     *
+     * This method will automatically add a matching `Content-Length` request
+     * header if the outgoing request body is a `string`. If you're using a
+     * streaming request body (`ReadableStreamInterface`), it will default to
+     * using `Transfer-Encoding: chunked` or you have to explicitly pass in a
+     * matching `Content-Length` request header like so:
+     *
+     * ```php
+     * $body = new React\Stream\ThroughStream();
+     * $loop->addTimer(1.0, function () use ($body) {
+     *     $body->end("hello world");
+     * });
+     *
+     * $browser->patch($url, array('Content-Length' => '11'), $body);
+     * ```
+     *
+     * > For BC reasons, this method accepts the `$url` as either a `string`
+     *   value or as an `UriInterface`. It's recommended to explicitly cast any
+     *   objects implementing `UriInterface` to `string`.
+     *
+     * @param string|UriInterface            $url     URL for the request.
+     * @param array                          $headers
+     * @param string|ReadableStreamInterface $contents
+     * @return PromiseInterface<ResponseInterface>
+     */
+    public function patch($url, array $headers = array(), $contents = '')
+    {
+        return $this->requestMayBeStreaming('PATCH', $url , $headers, $contents);
+    }
+
+    /**
+     * Sends an HTTP PUT request
+     *
+     * ```php
+     * $browser->put(
+     *     $url,
+     *     [
+     *         'Content-Type' => 'text/xml'
+     *     ],
+     *     $xml->asXML()
+     * )->then(function (Psr\Http\Message\ResponseInterface $response) {
+     *     var_dump((string)$response->getBody());
+     * });
+     * ```
+     *
+     * See also [example 05](../examples/05-put-xml.php).
+     *
+     * This method will automatically add a matching `Content-Length` request
+     * header if the outgoing request body is a `string`. If you're using a
+     * streaming request body (`ReadableStreamInterface`), it will default to
+     * using `Transfer-Encoding: chunked` or you have to explicitly pass in a
+     * matching `Content-Length` request header like so:
+     *
+     * ```php
+     * $body = new React\Stream\ThroughStream();
+     * $loop->addTimer(1.0, function () use ($body) {
+     *     $body->end("hello world");
+     * });
+     *
+     * $browser->put($url, array('Content-Length' => '11'), $body);
+     * ```
+     *
+     * > For BC reasons, this method accepts the `$url` as either a `string`
+     *   value or as an `UriInterface`. It's recommended to explicitly cast any
+     *   objects implementing `UriInterface` to `string`.
+     *
+     * @param string|UriInterface            $url     URL for the request.
+     * @param array                          $headers
+     * @param string|ReadableStreamInterface $contents
+     * @return PromiseInterface<ResponseInterface>
+     */
+    public function put($url, array $headers = array(), $contents = '')
+    {
+        return $this->requestMayBeStreaming('PUT', $url, $headers, $contents);
+    }
+
+    /**
+     * Sends an HTTP DELETE request
+     *
+     * ```php
+     * $browser->delete($url)->then(function (Psr\Http\Message\ResponseInterface $response) {
+     *     var_dump((string)$response->getBody());
+     * });
+     * ```
+     *
+     * > For BC reasons, this method accepts the `$url` as either a `string`
+     *   value or as an `UriInterface`. It's recommended to explicitly cast any
+     *   objects implementing `UriInterface` to `string`.
+     *
+     * @param string|UriInterface            $url     URL for the request.
+     * @param array                          $headers
+     * @param string|ReadableStreamInterface $contents
+     * @return PromiseInterface<ResponseInterface>
+     */
+    public function delete($url, array $headers = array(), $contents = '')
+    {
+        return $this->requestMayBeStreaming('DELETE', $url, $headers, $contents);
+    }
+
+    /**
+     * Sends an arbitrary HTTP request.
+     *
+     * The preferred way to send an HTTP request is by using the above
+     * [request methods](#request-methods), for example the [`get()`](#get)
+     * method to send an HTTP `GET` request.
+     *
+     * As an alternative, if you want to use a custom HTTP request method, you
+     * can use this method:
+     *
+     * ```php
+     * $browser->request('OPTIONS', $url)->then(function (Psr\Http\Message\ResponseInterface $response) {
+     *     var_dump((string)$response->getBody());
+     * });
+     * ```
+     *
+     * This method will automatically add a matching `Content-Length` request
+     * header if the size of the outgoing request body is known and non-empty.
+     * For an empty request body, if will only include a `Content-Length: 0`
+     * request header if the request method usually expects a request body (only
+     * applies to `POST`, `PUT` and `PATCH`).
+     *
+     * If you're using a streaming request body (`ReadableStreamInterface`), it
+     * will default to using `Transfer-Encoding: chunked` or you have to
+     * explicitly pass in a matching `Content-Length` request header like so:
+     *
+     * ```php
+     * $body = new React\Stream\ThroughStream();
+     * $loop->addTimer(1.0, function () use ($body) {
+     *     $body->end("hello world");
+     * });
+     *
+     * $browser->request('POST', $url, array('Content-Length' => '11'), $body);
+     * ```
+     *
+     * > Note that this method is available as of v2.9.0 and always buffers the
+     *   response body before resolving.
+     *   It does not respect the deprecated [`streaming` option](#withoptions).
+     *   If you want to stream the response body, you can use the
+     *   [`requestStreaming()`](#requeststreaming) method instead.
+     *
+     * @param string                         $method   HTTP request method, e.g. GET/HEAD/POST etc.
+     * @param string                         $url      URL for the request
+     * @param array                          $headers  Additional request headers
+     * @param string|ReadableStreamInterface $body     HTTP request body contents
+     * @return PromiseInterface<ResponseInterface,Exception>
+     * @since 2.9.0
+     */
+    public function request($method, $url, array $headers = array(), $body = '')
+    {
+        return $this->withOptions(array('streaming' => false))->requestMayBeStreaming($method, $url, $headers, $body);
+    }
+
+    /**
+     * Sends an arbitrary HTTP request and receives a streaming response without buffering the response body.
+     *
+     * The preferred way to send an HTTP request is by using the above
+     * [request methods](#request-methods), for example the [`get()`](#get)
+     * method to send an HTTP `GET` request. Each of these methods will buffer
+     * the whole response body in memory by default. This is easy to get started
+     * and works reasonably well for smaller responses.
+     *
+     * In some situations, it's a better idea to use a streaming approach, where
+     * only small chunks have to be kept in memory. You can use this method to
+     * send an arbitrary HTTP request and receive a streaming response. It uses
+     * the same HTTP message API, but does not buffer the response body in
+     * memory. It only processes the response body in small chunks as data is
+     * received and forwards this data through [ReactPHP's Stream API](https://github.com/reactphp/stream).
+     * This works for (any number of) responses of arbitrary sizes.
+     *
+     * ```php
+     * $browser->requestStreaming('GET', $url)->then(function (Psr\Http\Message\ResponseInterface $response) {
+     *     $body = $response->getBody();
+     *     assert($body instanceof Psr\Http\Message\StreamInterface);
+     *     assert($body instanceof React\Stream\ReadableStreamInterface);
+     *
+     *     $body->on('data', function ($chunk) {
+     *         echo $chunk;
+     *     });
+     *
+     *     $body->on('error', function (Exception $error) {
+     *         echo 'Error: ' . $error->getMessage() . PHP_EOL;
+     *     });
+     *
+     *     $body->on('close', function () {
+     *         echo '[DONE]' . PHP_EOL;
+     *     });
+     * });
+     * ```
+     *
+     * See also [`ReadableStreamInterface`](https://github.com/reactphp/stream#readablestreaminterface)
+     * and the [streaming response](#streaming-response) for more details,
+     * examples and possible use-cases.
+     *
+     * This method will automatically add a matching `Content-Length` request
+     * header if the size of the outgoing request body is known and non-empty.
+     * For an empty request body, if will only include a `Content-Length: 0`
+     * request header if the request method usually expects a request body (only
+     * applies to `POST`, `PUT` and `PATCH`).
+     *
+     * If you're using a streaming request body (`ReadableStreamInterface`), it
+     * will default to using `Transfer-Encoding: chunked` or you have to
+     * explicitly pass in a matching `Content-Length` request header like so:
+     *
+     * ```php
+     * $body = new React\Stream\ThroughStream();
+     * $loop->addTimer(1.0, function () use ($body) {
+     *     $body->end("hello world");
+     * });
+     *
+     * $browser->requestStreaming('POST', $url, array('Content-Length' => '11'), $body);
+     * ```
+     *
+     * > Note that this method is available as of v2.9.0 and always resolves the
+     *   response without buffering the response body.
+     *   It does not respect the deprecated [`streaming` option](#withoptions).
+     *   If you want to buffer the response body, use can use the
+     *   [`request()`](#request) method instead.
+     *
+     * @param string                         $method   HTTP request method, e.g. GET/HEAD/POST etc.
+     * @param string                         $url      URL for the request
+     * @param array                          $headers  Additional request headers
+     * @param string|ReadableStreamInterface $body     HTTP request body contents
+     * @return PromiseInterface<ResponseInterface,Exception>
+     * @since 2.9.0
+     */
+    public function requestStreaming($method, $url, $headers = array(), $contents = '')
+    {
+        return $this->withOptions(array('streaming' => true))->requestMayBeStreaming($method, $url, $headers, $contents);
+    }
+
+    /**
+     * [Deprecated] Submits an array of field values similar to submitting a form (`application/x-www-form-urlencoded`).
+     *
+     * ```php
+     * // deprecated: see post() instead
+     * $browser->submit($url, array('user' => 'test', 'password' => 'secret'));
+     * ```
+     *
+     * This method will automatically add a matching `Content-Length` request
+     * header for the encoded length of the given `$fields`.
+     *
+     * > For BC reasons, this method accepts the `$url` as either a `string`
+     *   value or as an `UriInterface`. It's recommended to explicitly cast any
+     *   objects implementing `UriInterface` to `string`.
+     *
+     * @param string|UriInterface $url     URL for the request.
+     * @param array               $fields
+     * @param array               $headers
+     * @param string              $method
+     * @return PromiseInterface<ResponseInterface>
+     * @deprecated 2.9.0 See self::post() instead.
+     * @see self::post()
+     */
+    public function submit($url, array $fields, $headers = array(), $method = 'POST')
+    {
+        $headers['Content-Type'] = 'application/x-www-form-urlencoded';
+        $contents = http_build_query($fields);
+
+        return $this->requestMayBeStreaming($method, $url, $headers, $contents);
+    }
+
+    /**
+     * [Deprecated] Sends an arbitrary instance implementing the [`RequestInterface`](#requestinterface) (PSR-7).
+     *
+     * The preferred way to send an HTTP request is by using the above
+     * [request methods](#request-methods), for example the [`get()`](#get)
+     * method to send an HTTP `GET` request.
+     *
+     * As an alternative, if you want to use a custom HTTP request method, you
+     * can use this method:
+     *
+     * ```php
+     * $request = new Request('OPTIONS', $url);
+     *
+     * // deprecated: see request() instead
+     * $browser->send($request)->then(…);
+     * ```
+     *
+     * This method will automatically add a matching `Content-Length` request
+     * header if the size of the outgoing request body is known and non-empty.
+     * For an empty request body, if will only include a `Content-Length: 0`
+     * request header if the request method usually expects a request body (only
+     * applies to `POST`, `PUT` and `PATCH`).
+     *
+     * @param RequestInterface $request
+     * @return PromiseInterface<ResponseInterface>
+     * @deprecated 2.9.0 See self::request() instead.
+     * @see self::request()
+     */
+    public function send(RequestInterface $request)
+    {
+        if ($this->baseUrl !== null) {
+            // ensure we're actually below the base URL
+            $request = $request->withUri($this->messageFactory->expandBase($request->getUri(), $this->baseUrl));
+        }
+
+        return $this->transaction->send($request);
+    }
+
+    /**
+     * Changes the maximum timeout used for waiting for pending requests.
+     *
+     * You can pass in the number of seconds to use as a new timeout value:
+     *
+     * ```php
+     * $browser = $browser->withTimeout(10.0);
+     * ```
+     *
+     * You can pass in a bool `false` to disable any timeouts. In this case,
+     * requests can stay pending forever:
+     *
+     * ```php
+     * $browser = $browser->withTimeout(false);
+     * ```
+     *
+     * You can pass in a bool `true` to re-enable default timeout handling. This
+     * will respects PHP's `default_socket_timeout` setting (default 60s):
+     *
+     * ```php
+     * $browser = $browser->withTimeout(true);
+     * ```
+     *
+     * See also [timeouts](#timeouts) for more details about timeout handling.
+     *
+     * Notice that the [`Browser`](#browser) is an immutable object, i.e. this
+     * method actually returns a *new* [`Browser`](#browser) instance with the
+     * given timeout value applied.
+     *
+     * @param bool|number $timeout
+     * @return self
+     */
+    public function withTimeout($timeout)
+    {
+        if ($timeout === true) {
+            $timeout = null;
+        } elseif ($timeout === false) {
+            $timeout = -1;
+        } elseif ($timeout < 0) {
+            $timeout = 0;
+        }
+
+        return $this->withOptions(array(
+            'timeout' => $timeout,
+        ));
+    }
+
+    /**
+     * Changes how HTTP redirects will be followed.
+     *
+     * You can pass in the maximum number of redirects to follow:
+     *
+     * ```php
+     * $new = $browser->withFollowRedirects(5);
+     * ```
+     *
+     * The request will automatically be rejected when the number of redirects
+     * is exceeded. You can pass in a `0` to reject the request for any
+     * redirects encountered:
+     *
+     * ```php
+     * $browser = $browser->withFollowRedirects(0);
+     *
+     * $browser->get($url)->then(function (Psr\Http\Message\ResponseInterface $response) {
+     *     // only non-redirected responses will now end up here
+     *     var_dump($response->getHeaders());
+     * });
+     * ```
+     *
+     * You can pass in a bool `false` to disable following any redirects. In
+     * this case, requests will resolve with the redirection response instead
+     * of following the `Location` response header:
+     *
+     * ```php
+     * $browser = $browser->withFollowRedirects(false);
+     *
+     * $browser->get($url)->then(function (Psr\Http\Message\ResponseInterface $response) {
+     *     // any redirects will now end up here
+     *     var_dump($response->getHeaderLine('Location'));
+     * });
+     * ```
+     *
+     * You can pass in a bool `true` to re-enable default redirect handling.
+     * This defaults to following a maximum of 10 redirects:
+     *
+     * ```php
+     * $browser = $browser->withFollowRedirects(true);
+     * ```
+     *
+     * See also [redirects](#redirects) for more details about redirect handling.
+     *
+     * Notice that the [`Browser`](#browser) is an immutable object, i.e. this
+     * method actually returns a *new* [`Browser`](#browser) instance with the
+     * given redirect setting applied.
+     *
+     * @param bool|int $followRedirects
+     * @return self
+     */
+    public function withFollowRedirects($followRedirects)
+    {
+        return $this->withOptions(array(
+            'followRedirects' => $followRedirects !== false,
+            'maxRedirects' => \is_bool($followRedirects) ? null : $followRedirects
+        ));
+    }
+
+    /**
+     * Changes whether non-successful HTTP response status codes (4xx and 5xx) will be rejected.
+     *
+     * You can pass in a bool `false` to disable rejecting incoming responses
+     * that use a 4xx or 5xx response status code. In this case, requests will
+     * resolve with the response message indicating an error condition:
+     *
+     * ```php
+     * $browser = $browser->withRejectErrorResponse(false);
+     *
+     * $browser->get($url)->then(function (Psr\Http\Message\ResponseInterface $response) {
+     *     // any HTTP response will now end up here
+     *     var_dump($response->getStatusCode(), $response->getReasonPhrase());
+     * });
+     * ```
+     *
+     * You can pass in a bool `true` to re-enable default status code handling.
+     * This defaults to rejecting any response status codes in the 4xx or 5xx
+     * range:
+     *
+     * ```php
+     * $browser = $browser->withRejectErrorResponse(true);
+     *
+     * $browser->get($url)->then(function (Psr\Http\Message\ResponseInterface $response) {
+     *     // any successful HTTP response will now end up here
+     *     var_dump($response->getStatusCode(), $response->getReasonPhrase());
+     * }, function (Exception $e) {
+     *     if ($e instanceof Clue\React\Buzz\Message\ResponseException) {
+     *         // any HTTP response error message will now end up here
+     *         $response = $e->getResponse();
+     *         var_dump($response->getStatusCode(), $response->getReasonPhrase());
+     *     } else {
+     *         var_dump($e->getMessage());
+     *     }
+     * });
+     * ```
+     *
+     * Notice that the [`Browser`](#browser) is an immutable object, i.e. this
+     * method actually returns a *new* [`Browser`](#browser) instance with the
+     * given setting applied.
+     *
+     * @param bool $obeySuccessCode
+     * @return self
+     */
+    public function withRejectErrorResponse($obeySuccessCode)
+    {
+        return $this->withOptions(array(
+            'obeySuccessCode' => $obeySuccessCode,
+        ));
+    }
+
+    /**
+     * Changes the base URL used to resolve relative URLs to.
+     *
+     * If you configure a base URL, any requests to relative URLs will be
+     * processed by first prepending this absolute base URL. Note that this
+     * merely prepends the base URL and does *not* resolve any relative path
+     * references (like `../` etc.). This is mostly useful for (RESTful) API
+     * calls where all endpoints (URLs) are located under a common base URL.
+     *
+     * ```php
+     * $browser = $browser->withBase('http://api.example.com/v3');
+     *
+     * // will request http://api.example.com/v3/example
+     * $browser->get('/example')->then(…);
+     * ```
+     *
+     * You can pass in a `null` base URL to return a new instance that does not
+     * use a base URL:
+     *
+     * ```php
+     * $browser = $browser->withBase(null);
+     * ```
+     *
+     * Accordingly, any requests using relative URLs to a browser that does not
+     * use a base URL can not be completed and will be rejected without sending
+     * a request.
+     *
+     * This method will throw an `InvalidArgumentException` if the given
+     * `$baseUrl` argument is not a valid URL.
+     *
+     * Notice that the [`Browser`](#browser) is an immutable object, i.e. the `withBase()` method
+     * actually returns a *new* [`Browser`](#browser) instance with the given base URL applied.
+     *
+     * > For BC reasons, this method accepts the `$baseUrl` as either a `string`
+     *   value or as an `UriInterface`. It's recommended to explicitly cast any
+     *   objects implementing `UriInterface` to `string`.
+     *
+     * > Changelog: As of v2.9.0 this method accepts a `null` value to reset the
+     *   base URL. Earlier versions had to use the deprecated `withoutBase()`
+     *   method to reset the base URL.
+     *
+     * @param string|null|UriInterface $baseUrl absolute base URL
+     * @return self
+     * @throws InvalidArgumentException if the given $baseUrl is not a valid absolute URL
+     * @see self::withoutBase()
+     */
+    public function withBase($baseUrl)
+    {
+        $browser = clone $this;
+        if ($baseUrl === null) {
+            $browser->baseUrl = null;
+            return $browser;
+        }
+
+        $browser->baseUrl = $this->messageFactory->uri($baseUrl);
+        if (!\in_array($browser->baseUrl->getScheme(), array('http', 'https')) || $browser->baseUrl->getHost() === '') {
+            throw new \InvalidArgumentException('Base URL must be absolute');
+        }
+
+        return $browser;
+    }
+
+    /**
+     * Changes the HTTP protocol version that will be used for all subsequent requests.
+     *
+     * All the above [request methods](#request-methods) default to sending
+     * requests as HTTP/1.1. This is the preferred HTTP protocol version which
+     * also provides decent backwards-compatibility with legacy HTTP/1.0
+     * servers. As such, there should rarely be a need to explicitly change this
+     * protocol version.
+     *
+     * If you want to explicitly use the legacy HTTP/1.0 protocol version, you
+     * can use this method:
+     *
+     * ```php
+     * $newBrowser = $browser->withProtocolVersion('1.0');
+     *
+     * $newBrowser->get($url)->then(…);
+     * ```
+     *
+     * Notice that the [`Browser`](#browser) is an immutable object, i.e. this
+     * method actually returns a *new* [`Browser`](#browser) instance with the
+     * new protocol version applied.
+     *
+     * @param string $protocolVersion HTTP protocol version to use, must be one of "1.1" or "1.0"
+     * @return self
+     * @throws InvalidArgumentException
+     * @since 2.8.0
+     */
+    public function withProtocolVersion($protocolVersion)
+    {
+        if (!\in_array($protocolVersion, array('1.0', '1.1'), true)) {
+            throw new InvalidArgumentException('Invalid HTTP protocol version, must be one of "1.1" or "1.0"');
+        }
+
+        $browser = clone $this;
+        $browser->protocolVersion = (string) $protocolVersion;
+
+        return $browser;
+    }
+
+    /**
+     * Changes the maximum size for buffering a response body.
+     *
+     * The preferred way to send an HTTP request is by using the above
+     * [request methods](#request-methods), for example the [`get()`](#get)
+     * method to send an HTTP `GET` request. Each of these methods will buffer
+     * the whole response body in memory by default. This is easy to get started
+     * and works reasonably well for smaller responses.
+     *
+     * By default, the response body buffer will be limited to 16 MiB. If the
+     * response body exceeds this maximum size, the request will be rejected.
+     *
+     * You can pass in the maximum number of bytes to buffer:
+     *
+     * ```php
+     * $browser = $browser->withResponseBuffer(1024 * 1024);
+     *
+     * $browser->get($url)->then(function (Psr\Http\Message\ResponseInterface $response) {
+     *     // response body will not exceed 1 MiB
+     *     var_dump($response->getHeaders(), (string) $response->getBody());
+     * });
+     * ```
+     *
+     * Note that the response body buffer has to be kept in memory for each
+     * pending request until its transfer is completed and it will only be freed
+     * after a pending request is fulfilled. As such, increasing this maximum
+     * buffer size to allow larger response bodies is usually not recommended.
+     * Instead, you can use the [`requestStreaming()` method](#requeststreaming)
+     * to receive responses with arbitrary sizes without buffering. Accordingly,
+     * this maximum buffer size setting has no effect on streaming responses.
+     *
+     * Notice that the [`Browser`](#browser) is an immutable object, i.e. this
+     * method actually returns a *new* [`Browser`](#browser) instance with the
+     * given setting applied.
+     *
+     * @param int $maximumSize
+     * @return self
+     * @see self::requestStreaming()
+     */
+    public function withResponseBuffer($maximumSize)
+    {
+        return $this->withOptions(array(
+            'maximumSize' => $maximumSize
+        ));
+    }
+
+    /**
+     * [Deprecated] Changes the [options](#options) to use:
+     *
+     * The [`Browser`](#browser) class exposes several options for the handling of
+     * HTTP transactions. These options resemble some of PHP's
+     * [HTTP context options](http://php.net/manual/en/context.http.php) and
+     * can be controlled via the following API (and their defaults):
+     *
+     * ```php
+     * // deprecated
+     * $newBrowser = $browser->withOptions(array(
+     *     'timeout' => null, // see withTimeout() instead
+     *     'followRedirects' => true, // see withFollowRedirects() instead
+     *     'maxRedirects' => 10, // see withFollowRedirects() instead
+     *     'obeySuccessCode' => true, // see withRejectErrorResponse() instead
+     *     'streaming' => false, // deprecated, see requestStreaming() instead
+     * ));
+     * ```
+     *
+     * See also [timeouts](#timeouts), [redirects](#redirects) and
+     * [streaming](#streaming) for more details.
+     *
+     * Notice that the [`Browser`](#browser) is an immutable object, i.e. this
+     * method actually returns a *new* [`Browser`](#browser) instance with the
+     * options applied.
+     *
+     * @param array $options
+     * @return self
+     * @deprecated 2.9.0 See self::withTimeout(), self::withFollowRedirects() and self::withRejectErrorResponse() instead.
+     * @see self::withTimeout()
+     * @see self::withFollowRedirects()
+     * @see self::withRejectErrorResponse()
+     */
+    public function withOptions(array $options)
+    {
+        $browser = clone $this;
+        $browser->transaction = $this->transaction->withOptions($options);
+
+        return $browser;
+    }
+
+    /**
+     * [Deprecated] Removes the base URL.
+     *
+     * ```php
+     * // deprecated: see withBase() instead
+     * $newBrowser = $browser->withoutBase();
+     * ```
+     *
+     * Notice that the [`Browser`](#browser) is an immutable object, i.e. the `withoutBase()` method
+     * actually returns a *new* [`Browser`](#browser) instance without any base URL applied.
+     *
+     * See also [`withBase()`](#withbase).
+     *
+     * @return self
+     * @deprecated 2.9.0 See self::withBase() instead.
+     * @see self::withBase()
+     */
+    public function withoutBase()
+    {
+        return $this->withBase(null);
+    }
+
+    /**
+     * @param string                         $method
+     * @param string|UriInterface            $url
+     * @param array                          $headers
+     * @param string|ReadableStreamInterface $contents
+     * @return PromiseInterface<ResponseInterface,Exception>
+     */
+    private function requestMayBeStreaming($method, $url, array $headers = array(), $contents = '')
+    {
+        return $this->send($this->messageFactory->request($method, $url, $headers, $contents, $this->protocolVersion));
+    }
+}
diff --git a/vendor/clue/buzz-react/src/Io/ChunkedEncoder.php b/vendor/clue/buzz-react/src/Io/ChunkedEncoder.php
new file mode 100644
index 0000000..3b74e0c
--- /dev/null
+++ b/vendor/clue/buzz-react/src/Io/ChunkedEncoder.php
@@ -0,0 +1,93 @@
+<?php
+
+namespace Clue\React\Buzz\Io;
+
+use Evenement\EventEmitter;
+use React\Stream\ReadableStreamInterface;
+use React\Stream\Util;
+use React\Stream\WritableStreamInterface;
+
+/**
+ * [Internal] Encodes given payload stream with "Transfer-Encoding: chunked" and emits encoded data
+ *
+ * This is used internally to encode outgoing requests with this encoding.
+ *
+ * @internal
+ * @link https://github.com/reactphp/http/blob/master/src/Io/ChunkedEncoder.php Originally from react/http
+ */
+class ChunkedEncoder extends EventEmitter implements ReadableStreamInterface
+{
+    private $input;
+    private $closed = false;
+
+    public function __construct(ReadableStreamInterface $input)
+    {
+        $this->input = $input;
+
+        $this->input->on('data', array($this, 'handleData'));
+        $this->input->on('end', array($this, 'handleEnd'));
+        $this->input->on('error', array($this, 'handleError'));
+        $this->input->on('close', array($this, 'close'));
+    }
+
+    public function isReadable()
+    {
+        return !$this->closed && $this->input->isReadable();
+    }
+
+    public function pause()
+    {
+        $this->input->pause();
+    }
+
+    public function resume()
+    {
+        $this->input->resume();
+    }
+
+    public function pipe(WritableStreamInterface $dest, array $options = array())
+    {
+        return Util::pipe($this, $dest, $options);
+    }
+
+    public function close()
+    {
+        if ($this->closed) {
+            return;
+        }
+
+        $this->closed = true;
+        $this->input->close();
+
+        $this->emit('close');
+        $this->removeAllListeners();
+    }
+
+    /** @internal */
+    public function handleData($data)
+    {
+        if ($data !== '') {
+            $this->emit('data', array(
+                dechex(strlen($data)) . "\r\n" . $data . "\r\n"
+            ));
+        }
+    }
+
+    /** @internal */
+    public function handleError(\Exception $e)
+    {
+        $this->emit('error', array($e));
+        $this->close();
+    }
+
+    /** @internal */
+    public function handleEnd()
+    {
+        $this->emit('data', array("0\r\n\r\n"));
+
+        if (!$this->closed) {
+            $this->emit('end');
+            $this->close();
+        }
+    }
+}
diff --git a/vendor/clue/buzz-react/src/Io/Sender.php b/vendor/clue/buzz-react/src/Io/Sender.php
new file mode 100644
index 0000000..06c1212
--- /dev/null
+++ b/vendor/clue/buzz-react/src/Io/Sender.php
@@ -0,0 +1,161 @@
+<?php
+
+namespace Clue\React\Buzz\Io;
+
+use Clue\React\Buzz\Message\MessageFactory;
+use Psr\Http\Message\RequestInterface;
+use React\EventLoop\LoopInterface;
+use React\HttpClient\Client as HttpClient;
+use React\HttpClient\Response as ResponseStream;
+use React\Promise\PromiseInterface;
+use React\Promise\Deferred;
+use React\Socket\ConnectorInterface;
+use React\Stream\ReadableStreamInterface;
+
+/**
+ * [Internal] Sends requests and receives responses
+ *
+ * The `Sender` is responsible for passing the [`RequestInterface`](#requestinterface) objects to
+ * the underlying [`HttpClient`](https://github.com/reactphp/http-client) library
+ * and keeps track of its transmission and converts its reponses back to [`ResponseInterface`](#responseinterface) objects.
+ *
+ * It also registers everything with the main [`EventLoop`](https://github.com/reactphp/event-loop#usage)
+ * and the default [`Connector`](https://github.com/reactphp/socket-client) and [DNS `Resolver`](https://github.com/reactphp/dns).
+ *
+ * The `Sender` class mostly exists in order to abstract changes on the underlying
+ * components away from this package in order to provide backwards and forwards
+ * compatibility.
+ *
+ * @internal You SHOULD NOT rely on this API, it is subject to change without prior notice!
+ * @see Browser
+ */
+class Sender
+{
+    /**
+     * create a new default sender attached to the given event loop
+     *
+     * This method is used internally to create the "default sender".
+     *
+     * You may also use this method if you need custom DNS or connector
+     * settings. You can use this method manually like this:
+     *
+     * ```php
+     * $connector = new \React\Socket\Connector($loop);
+     * $sender = \Clue\React\Buzz\Io\Sender::createFromLoop($loop, $connector);
+     * ```
+     *
+     * @param LoopInterface $loop
+     * @param ConnectorInterface|null $connector
+     * @return self
+     */
+    public static function createFromLoop(LoopInterface $loop, ConnectorInterface $connector = null, MessageFactory $messageFactory)
+    {
+        return new self(new HttpClient($loop, $connector), $messageFactory);
+    }
+
+    private $http;
+    private $messageFactory;
+
+    /**
+     * [internal] Instantiate Sender
+     *
+     * @param HttpClient $http
+     * @internal
+     */
+    public function __construct(HttpClient $http, MessageFactory $messageFactory)
+    {
+        $this->http = $http;
+        $this->messageFactory = $messageFactory;
+    }
+
+    /**
+     *
+     * @internal
+     * @param RequestInterface $request
+     * @return PromiseInterface Promise<ResponseInterface, Exception>
+     */
+    public function send(RequestInterface $request)
+    {
+        $body = $request->getBody();
+        $size = $body->getSize();
+
+        if ($size !== null && $size !== 0) {
+            // automatically assign a "Content-Length" request header if the body size is known and non-empty
+            $request = $request->withHeader('Content-Length', (string)$size);
+        } elseif ($size === 0 && \in_array($request->getMethod(), array('POST', 'PUT', 'PATCH'))) {
+            // only assign a "Content-Length: 0" request header if the body is expected for certain methods
+            $request = $request->withHeader('Content-Length', '0');
+        } elseif ($body instanceof ReadableStreamInterface && $body->isReadable() && !$request->hasHeader('Content-Length')) {
+            // use "Transfer-Encoding: chunked" when this is a streaming body and body size is unknown
+            $request = $request->withHeader('Transfer-Encoding', 'chunked');
+        } else {
+            // do not use chunked encoding if size is known or if this is an empty request body
+            $size = 0;
+        }
+
+        $headers = array();
+        foreach ($request->getHeaders() as $name => $values) {
+            $headers[$name] = implode(', ', $values);
+        }
+
+        $requestStream = $this->http->request($request->getMethod(), (string)$request->getUri(), $headers, $request->getProtocolVersion());
+
+        $deferred = new Deferred(function ($_, $reject) use ($requestStream) {
+            // close request stream if request is cancelled
+            $reject(new \RuntimeException('Request cancelled'));
+            $requestStream->close();
+        });
+
+        $requestStream->on('error', function($error) use ($deferred) {
+            $deferred->reject($error);
+        });
+
+        $messageFactory = $this->messageFactory;
+        $requestStream->on('response', function (ResponseStream $responseStream) use ($deferred, $messageFactory, $request) {
+            // apply response header values from response stream
+            $deferred->resolve($messageFactory->response(
+                $responseStream->getVersion(),
+                $responseStream->getCode(),
+                $responseStream->getReasonPhrase(),
+                $responseStream->getHeaders(),
+                $responseStream,
+                $request->getMethod()
+            ));
+        });
+
+        if ($body instanceof ReadableStreamInterface) {
+            if ($body->isReadable()) {
+                // length unknown => apply chunked transfer-encoding
+                if ($size === null) {
+                    $body = new ChunkedEncoder($body);
+                }
+
+                // pipe body into request stream
+                // add dummy write to immediately start request even if body does not emit any data yet
+                $body->pipe($requestStream);
+                $requestStream->write('');
+
+                $body->on('close', $close = function () use ($deferred, $requestStream) {
+                    $deferred->reject(new \RuntimeException('Request failed because request body closed unexpectedly'));
+                    $requestStream->close();
+                });
+                $body->on('error', function ($e) use ($deferred, $requestStream, $close, $body) {
+                    $body->removeListener('close', $close);
+                    $deferred->reject(new \RuntimeException('Request failed because request body reported an error', 0, $e));
+                    $requestStream->close();
+                });
+                $body->on('end', function () use ($close, $body) {
+                    $body->removeListener('close', $close);
+                });
+            } else {
+                // stream is not readable => end request without body
+                $requestStream->end();
+            }
+        } else {
+            // body is fully buffered => write as one chunk
+            $requestStream->end((string)$body);
+        }
+
+        return $deferred->promise();
+    }
+}
diff --git a/vendor/clue/buzz-react/src/Io/Transaction.php b/vendor/clue/buzz-react/src/Io/Transaction.php
new file mode 100644
index 0000000..adb5796
--- /dev/null
+++ b/vendor/clue/buzz-react/src/Io/Transaction.php
@@ -0,0 +1,305 @@
+<?php
+
+namespace Clue\React\Buzz\Io;
+
+use Clue\React\Buzz\Message\ResponseException;
+use Clue\React\Buzz\Message\MessageFactory;
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\UriInterface;
+use React\EventLoop\LoopInterface;
+use React\Promise\Deferred;
+use React\Promise\PromiseInterface;
+use React\Stream\ReadableStreamInterface;
+
+/**
+ * @internal
+ */
+class Transaction
+{
+    private $sender;
+    private $messageFactory;
+    private $loop;
+
+    // context: http.timeout (ini_get('default_socket_timeout'): 60)
+    private $timeout;
+
+    // context: http.follow_location (true)
+    private $followRedirects = true;
+
+    // context: http.max_redirects (10)
+    private $maxRedirects = 10;
+
+    // context: http.ignore_errors (false)
+    private $obeySuccessCode = true;
+
+    private $streaming = false;
+
+    private $maximumSize = 16777216; // 16 MiB = 2^24 bytes
+
+    public function __construct(Sender $sender, MessageFactory $messageFactory, LoopInterface $loop)
+    {
+        $this->sender = $sender;
+        $this->messageFactory = $messageFactory;
+        $this->loop = $loop;
+    }
+
+    /**
+     * @param array $options
+     * @return self returns new instance, without modifying existing instance
+     */
+    public function withOptions(array $options)
+    {
+        $transaction = clone $this;
+        foreach ($options as $name => $value) {
+            if (property_exists($transaction, $name)) {
+                // restore default value if null is given
+                if ($value === null) {
+                    $default = new self($this->sender, $this->messageFactory, $this->loop);
+                    $value = $default->$name;
+                }
+
+                $transaction->$name = $value;
+            }
+        }
+
+        return $transaction;
+    }
+
+    public function send(RequestInterface $request)
+    {
+        $deferred = new Deferred(function () use (&$deferred) {
+            if (isset($deferred->pending)) {
+                $deferred->pending->cancel();
+                unset($deferred->pending);
+            }
+        });
+
+        $deferred->numRequests = 0;
+
+        // use timeout from options or default to PHP's default_socket_timeout (60)
+        $timeout = (float)($this->timeout !== null ? $this->timeout : ini_get("default_socket_timeout"));
+
+        $loop = $this->loop;
+        $this->next($request, $deferred)->then(
+            function (ResponseInterface $response) use ($deferred, $loop, &$timeout) {
+                if (isset($deferred->timeout)) {
+                    $loop->cancelTimer($deferred->timeout);
+                    unset($deferred->timeout);
+                }
+                $timeout = -1;
+                $deferred->resolve($response);
+            },
+            function ($e) use ($deferred, $loop, &$timeout) {
+                if (isset($deferred->timeout)) {
+                    $loop->cancelTimer($deferred->timeout);
+                    unset($deferred->timeout);
+                }
+                $timeout = -1;
+                $deferred->reject($e);
+            }
+        );
+
+        if ($timeout < 0) {
+            return $deferred->promise();
+        }
+
+        $body = $request->getBody();
+        if ($body instanceof ReadableStreamInterface && $body->isReadable()) {
+            $that = $this;
+            $body->on('close', function () use ($that, $deferred, &$timeout) {
+                if ($timeout >= 0) {
+                    $that->applyTimeout($deferred, $timeout);
+                }
+            });
+        } else {
+            $this->applyTimeout($deferred, $timeout);
+        }
+
+        return $deferred->promise();
+    }
+
+    /**
+     * @internal
+     * @param Deferred $deferred
+     * @param number  $timeout
+     * @return void
+     */
+    public function applyTimeout(Deferred $deferred, $timeout)
+    {
+        $deferred->timeout = $this->loop->addTimer($timeout, function () use ($timeout, $deferred) {
+            $deferred->reject(new \RuntimeException(
+                'Request timed out after ' . $timeout . ' seconds'
+            ));
+            if (isset($deferred->pending)) {
+                $deferred->pending->cancel();
+                unset($deferred->pending);
+            }
+        });
+    }
+
+    private function next(RequestInterface $request, Deferred $deferred)
+    {
+        $this->progress('request', array($request));
+
+        $that = $this;
+        ++$deferred->numRequests;
+
+        $promise = $this->sender->send($request);
+
+        if (!$this->streaming) {
+            $promise = $promise->then(function ($response) use ($deferred, $that) {
+                return $that->bufferResponse($response, $deferred);
+            });
+        }
+
+        $deferred->pending = $promise;
+
+        return $promise->then(
+            function (ResponseInterface $response) use ($request, $that, $deferred) {
+                return $that->onResponse($response, $request, $deferred);
+            }
+        );
+    }
+
+    /**
+     * @internal
+     * @param ResponseInterface $response
+     * @return PromiseInterface Promise<ResponseInterface, Exception>
+     */
+    public function bufferResponse(ResponseInterface $response, $deferred)
+    {
+        $stream = $response->getBody();
+
+        $size = $stream->getSize();
+        if ($size !== null && $size > $this->maximumSize) {
+            $stream->close();
+            return \React\Promise\reject(new \OverflowException(
+                'Response body size of ' . $size . ' bytes exceeds maximum of ' . $this->maximumSize . ' bytes',
+                \defined('SOCKET_EMSGSIZE') ? \SOCKET_EMSGSIZE : 0
+            ));
+        }
+
+        // body is not streaming => already buffered
+        if (!$stream instanceof ReadableStreamInterface) {
+            return \React\Promise\resolve($response);
+        }
+
+        // buffer stream and resolve with buffered body
+        $messageFactory = $this->messageFactory;
+        $maximumSize = $this->maximumSize;
+        $promise = \React\Promise\Stream\buffer($stream, $maximumSize)->then(
+            function ($body) use ($response, $messageFactory) {
+                return $response->withBody($messageFactory->body($body));
+            },
+            function ($e) use ($stream, $maximumSize) {
+                // try to close stream if buffering fails (or is cancelled)
+                $stream->close();
+
+                if ($e instanceof \OverflowException) {
+                    $e = new \OverflowException(
+                        'Response body size exceeds maximum of ' . $maximumSize . ' bytes',
+                        \defined('SOCKET_EMSGSIZE') ? \SOCKET_EMSGSIZE : 0
+                    );
+                }
+
+                throw $e;
+            }
+        );
+
+        $deferred->pending = $promise;
+
+        return $promise;
+    }
+
+    /**
+     * @internal
+     * @param ResponseInterface $response
+     * @param RequestInterface $request
+     * @throws ResponseException
+     * @return ResponseInterface|PromiseInterface
+     */
+    public function onResponse(ResponseInterface $response, RequestInterface $request, $deferred)
+    {
+        $this->progress('response', array($response, $request));
+
+        // follow 3xx (Redirection) response status codes if Location header is present and not explicitly disabled
+        // @link https://tools.ietf.org/html/rfc7231#section-6.4
+        if ($this->followRedirects && ($response->getStatusCode() >= 300 && $response->getStatusCode() < 400) && $response->hasHeader('Location')) {
+            return $this->onResponseRedirect($response, $request, $deferred);
+        }
+
+        // only status codes 200-399 are considered to be valid, reject otherwise
+        if ($this->obeySuccessCode && ($response->getStatusCode() < 200 || $response->getStatusCode() >= 400)) {
+            throw new ResponseException($response);
+        }
+
+        // resolve our initial promise
+        return $response;
+    }
+
+    /**
+     * @param ResponseInterface $response
+     * @param RequestInterface $request
+     * @return PromiseInterface
+     * @throws \RuntimeException
+     */
+    private function onResponseRedirect(ResponseInterface $response, RequestInterface $request, Deferred $deferred)
+    {
+        // resolve location relative to last request URI
+        $location = $this->messageFactory->uriRelative($request->getUri(), $response->getHeaderLine('Location'));
+
+        $request = $this->makeRedirectRequest($request, $location);
+        $this->progress('redirect', array($request));
+
+        if ($deferred->numRequests >= $this->maxRedirects) {
+            throw new \RuntimeException('Maximum number of redirects (' . $this->maxRedirects . ') exceeded');
+        }
+
+        return $this->next($request, $deferred);
+    }
+
+    /**
+     * @param RequestInterface $request
+     * @param UriInterface $location
+     * @return RequestInterface
+     */
+    private function makeRedirectRequest(RequestInterface $request, UriInterface $location)
+    {
+        $originalHost = $request->getUri()->getHost();
+        $request = $request
+            ->withoutHeader('Host')
+            ->withoutHeader('Content-Type')
+            ->withoutHeader('Content-Length');
+
+        // Remove authorization if changing hostnames (but not if just changing ports or protocols).
+        if ($location->getHost() !== $originalHost) {
+            $request = $request->withoutHeader('Authorization');
+        }
+
+        // naïve approach..
+        $method = ($request->getMethod() === 'HEAD') ? 'HEAD' : 'GET';
+
+        return $this->messageFactory->request($method, $location, $request->getHeaders());
+    }
+
+    private function progress($name, array $args = array())
+    {
+        return;
+
+        echo $name;
+
+        foreach ($args as $arg) {
+            echo ' ';
+            if ($arg instanceof ResponseInterface) {
+                echo 'HTTP/' . $arg->getProtocolVersion() . ' ' . $arg->getStatusCode() . ' ' . $arg->getReasonPhrase();
+            } elseif ($arg instanceof RequestInterface) {
+                echo $arg->getMethod() . ' ' . $arg->getRequestTarget() . ' HTTP/' . $arg->getProtocolVersion();
+            } else {
+                echo $arg;
+            }
+        }
+
+        echo PHP_EOL;
+    }
+}
diff --git a/vendor/clue/buzz-react/src/Message/MessageFactory.php b/vendor/clue/buzz-react/src/Message/MessageFactory.php
new file mode 100644
index 0000000..8a3dd6d
--- /dev/null
+++ b/vendor/clue/buzz-react/src/Message/MessageFactory.php
@@ -0,0 +1,139 @@
+<?php
+
+namespace Clue\React\Buzz\Message;
+
+use Psr\Http\Message\StreamInterface;
+use Psr\Http\Message\UriInterface;
+use RingCentral\Psr7\Request;
+use RingCentral\Psr7\Response;
+use RingCentral\Psr7\Uri;
+use React\Stream\ReadableStreamInterface;
+
+/**
+ * @internal
+ */
+class MessageFactory
+{
+    /**
+     * Creates a new instance of RequestInterface for the given request parameters
+     *
+     * @param string                         $method
+     * @param string|UriInterface            $uri
+     * @param array                          $headers
+     * @param string|ReadableStreamInterface $content
+     * @param string                         $protocolVersion
+     * @return Request
+     */
+    public function request($method, $uri, $headers = array(), $content = '', $protocolVersion = '1.1')
+    {
+        return new Request($method, $uri, $headers, $this->body($content), $protocolVersion);
+    }
+
+    /**
+     * Creates a new instance of ResponseInterface for the given response parameters
+     *
+     * @param string $protocolVersion
+     * @param int    $status
+     * @param string $reason
+     * @param array  $headers
+     * @param ReadableStreamInterface|string $body
+     * @param ?string $requestMethod
+     * @return Response
+     * @uses self::body()
+     */
+    public function response($protocolVersion, $status, $reason, $headers = array(), $body = '', $requestMethod = null)
+    {
+        $response = new Response($status, $headers, $body instanceof ReadableStreamInterface ? null : $body, $protocolVersion, $reason);
+
+        if ($body instanceof ReadableStreamInterface) {
+            $length = null;
+            $code = $response->getStatusCode();
+            if ($requestMethod === 'HEAD' || ($code >= 100 && $code < 200) || $code == 204 || $code == 304) {
+                $length = 0;
+            } elseif (\strtolower($response->getHeaderLine('Transfer-Encoding')) === 'chunked') {
+                $length = null;
+            } elseif ($response->hasHeader('Content-Length')) {
+                $length = (int)$response->getHeaderLine('Content-Length');
+            }
+
+            $response = $response->withBody(new ReadableBodyStream($body, $length));
+        }
+
+        return $response;
+    }
+
+    /**
+     * Creates a new instance of StreamInterface for the given body contents
+     *
+     * @param ReadableStreamInterface|string $body
+     * @return StreamInterface
+     */
+    public function body($body)
+    {
+        if ($body instanceof ReadableStreamInterface) {
+            return new ReadableBodyStream($body);
+        }
+
+        return \RingCentral\Psr7\stream_for($body);
+    }
+
+    /**
+     * Creates a new instance of UriInterface for the given URI string
+     *
+     * @param string $uri
+     * @return UriInterface
+     */
+    public function uri($uri)
+    {
+        return new Uri($uri);
+    }
+
+    /**
+     * Creates a new instance of UriInterface for the given URI string relative to the given base URI
+     *
+     * @param UriInterface $base
+     * @param string       $uri
+     * @return UriInterface
+     */
+    public function uriRelative(UriInterface $base, $uri)
+    {
+        return Uri::resolve($base, $uri);
+    }
+
+    /**
+     * Resolves the given relative or absolute $uri by appending it behind $this base URI
+     *
+     * The given $uri parameter can be either a relative or absolute URI and
+     * as such can not contain any URI template placeholders.
+     *
+     * As such, the outcome of this method represents a valid, absolute URI
+     * which will be returned as an instance implementing `UriInterface`.
+     *
+     * If the given $uri is a relative URI, it will simply be appended behind $base URI.
+     *
+     * If the given $uri is an absolute URI, it will simply be returned as-is.
+     *
+     * @param UriInterface $uri
+     * @param UriInterface $base
+     * @return UriInterface
+     */
+    public function expandBase(UriInterface $uri, UriInterface $base)
+    {
+        if ($uri->getScheme() !== '') {
+            return $uri;
+        }
+
+        $uri = (string)$uri;
+        $base = (string)$base;
+
+        if ($uri !== '' && substr($base, -1) !== '/' && substr($uri, 0, 1) !== '?') {
+            $base .= '/';
+        }
+
+        if (isset($uri[0]) && $uri[0] === '/') {
+            $uri = substr($uri, 1);
+        }
+
+        return $this->uri($base . $uri);
+    }
+}
diff --git a/vendor/clue/buzz-react/src/Message/ReadableBodyStream.php b/vendor/clue/buzz-react/src/Message/ReadableBodyStream.php
new file mode 100644
index 0000000..eac27f7
--- /dev/null
+++ b/vendor/clue/buzz-react/src/Message/ReadableBodyStream.php
@@ -0,0 +1,153 @@
+<?php
+
+namespace Clue\React\Buzz\Message;
+
+use Evenement\EventEmitter;
+use Psr\Http\Message\StreamInterface;
+use React\Stream\ReadableStreamInterface;
+use React\Stream\Util;
+use React\Stream\WritableStreamInterface;
+
+/**
+ * @internal
+ */
+class ReadableBodyStream extends EventEmitter implements ReadableStreamInterface, StreamInterface
+{
+    private $input;
+    private $position = 0;
+    private $size;
+    private $closed = false;
+
+    public function __construct(ReadableStreamInterface $input, $size = null)
+    {
+        $this->input = $input;
+        $this->size = $size;
+
+        $that = $this;
+        $pos =& $this->position;
+        $input->on('data', function ($data) use ($that, &$pos, $size) {
+            $that->emit('data', array($data));
+
+            $pos += \strlen($data);
+            if ($size !== null && $pos >= $size) {
+                $that->handleEnd();
+            }
+        });
+        $input->on('error', function ($error) use ($that) {
+            $that->emit('error', array($error));
+            $that->close();
+        });
+        $input->on('end', array($that, 'handleEnd'));
+        $input->on('close', array($that, 'close'));
+    }
+
+    public function close()
+    {
+        if (!$this->closed) {
+            $this->closed = true;
+            $this->input->close();
+
+            $this->emit('close');
+            $this->removeAllListeners();
+        }
+    }
+
+    public function isReadable()
+    {
+        return $this->input->isReadable();
+    }
+
+    public function pause()
+    {
+        $this->input->pause();
+    }
+
+    public function resume()
+    {
+        $this->input->resume();
+    }
+
+    public function pipe(WritableStreamInterface $dest, array $options = array())
+    {
+        Util::pipe($this, $dest, $options);
+
+        return $dest;
+    }
+
+    public function eof()
+    {
+        return !$this->isReadable();
+    }
+
+    public function __toString()
+    {
+        return '';
+    }
+
+    public function detach()
+    {
+        throw new \BadMethodCallException();
+    }
+
+    public function getSize()
+    {
+        return $this->size;
+    }
+
+    public function tell()
+    {
+        throw new \BadMethodCallException();
+    }
+
+    public function isSeekable()
+    {
+        return false;
+    }
+
+    public function seek($offset, $whence = SEEK_SET)
+    {
+        throw new \BadMethodCallException();
+    }
+
+    public function rewind()
+    {
+        throw new \BadMethodCallException();
+    }
+
+    public function isWritable()
+    {
+        return false;
+    }
+
+    public function write($string)
+    {
+        throw new \BadMethodCallException();
+    }
+
+    public function read($length)
+    {
+        throw new \BadMethodCallException();
+    }
+
+    public function getContents()
+    {
+        throw new \BadMethodCallException();
+    }
+
+    public function getMetadata($key = null)
+    {
+        return ($key === null) ? array() : null;
+    }
+
+    /** @internal */
+    public function handleEnd()
+    {
+        if ($this->position !== $this->size && $this->size !== null) {
+            $this->emit('error', array(new \UnderflowException('Unexpected end of response body after ' . $this->position . '/' . $this->size . ' bytes')));
+        } else {
+            $this->emit('end');
+        }
+
+        $this->close();
+    }
+}
diff --git a/vendor/clue/buzz-react/src/Message/ResponseException.php b/vendor/clue/buzz-react/src/Message/ResponseException.php
new file mode 100644
index 0000000..081103a
--- /dev/null
+++ b/vendor/clue/buzz-react/src/Message/ResponseException.php
@@ -0,0 +1,43 @@
+<?php
+
+namespace Clue\React\Buzz\Message;
+
+use RuntimeException;
+use Psr\Http\Message\ResponseInterface;
+
+/**
+ * The `ResponseException` is an `Exception` sub-class that will be used to reject
+ * a request promise if the remote server returns a non-success status code
+ * (anything but 2xx or 3xx).
+ * You can control this behavior via the [`withRejectErrorResponse()` method](#withrejecterrorresponse).
+ *
+ * The `getCode(): int` method can be used to
+ * return the HTTP response status code.
+ */
+class ResponseException extends RuntimeException
+{
+    private $response;
+
+    public function __construct(ResponseInterface $response, $message = null, $code = null, $previous = null)
+    {
+        if ($message === null) {
+            $message = 'HTTP status code ' . $response->getStatusCode() . ' (' . $response->getReasonPhrase() . ')';
+        }
+        if ($code === null) {
+            $code = $response->getStatusCode();
+        }
+        parent::__construct($message, $code, $previous);
+
+        $this->response = $response;
+    }
+
+    /**
+     * Access its underlying [`ResponseInterface`](#responseinterface) object.
+     *
+     * @return ResponseInterface
+     */
+    public function getResponse()
+    {
+        return $this->response;
+    }
+}
diff --git a/vendor/clue/connection-manager-extra/LICENSE b/vendor/clue/connection-manager-extra/LICENSE
new file mode 100644
index 0000000..da15612
--- /dev/null
+++ b/vendor/clue/connection-manager-extra/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2013 Christian Lück
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/vendor/clue/connection-manager-extra/composer.json b/vendor/clue/connection-manager-extra/composer.json
new file mode 100644
index 0000000..7534f80
--- /dev/null
+++ b/vendor/clue/connection-manager-extra/composer.json
@@ -0,0 +1,29 @@
+{
+    "name": "clue/connection-manager-extra",
+    "description": "Extra decorators for creating async TCP/IP connections, built on top of ReactPHP's Socket component",
+    "keywords": ["Socket", "network", "connection", "timeout", "delay", "reject", "repeat", "retry", "random", "acl", "firewall", "ReactPHP"],
+    "homepage": "https://github.com/clue/reactphp-connection-manager-extra",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Christian Lück",
+            "email": "christian@clue.engineering"
+        }
+    ],
+    "autoload": {
+        "psr-4": { "ConnectionManager\\Extra\\": "src" }
+    },
+    "autoload-dev": {
+        "psr-4": { "ConnectionManager\\Tests\\Extra\\": "tests/" }
+    },
+    "require": {
+        "php": ">=5.3",
+        "react/socket": "^1.0 || ^0.8 || ^0.7",
+        "react/event-loop": "^1.0 || ^0.5 || ^0.4 || ^0.3.5",
+        "react/promise": "^2.1 || ^1.2.1",
+        "react/promise-timer": "^1.1"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^9.3 || ^5.7 || ^4.8"
+    }
+}
diff --git a/vendor/clue/connection-manager-extra/src/ConnectionManagerDelay.php b/vendor/clue/connection-manager-extra/src/ConnectionManagerDelay.php
new file mode 100644
index 0000000..b5112c6
--- /dev/null
+++ b/vendor/clue/connection-manager-extra/src/ConnectionManagerDelay.php
@@ -0,0 +1,30 @@
+<?php
+
+namespace ConnectionManager\Extra;
+
+use React\Socket\ConnectorInterface;
+use React\EventLoop\LoopInterface;
+use React\Promise\Timer;
+
+class ConnectionManagerDelay implements ConnectorInterface
+{
+    private $connectionManager;
+    private $delay;
+    private $loop;
+
+    public function __construct(ConnectorInterface $connectionManager, $delay, LoopInterface $loop)
+    {
+        $this->connectionManager = $connectionManager;
+        $this->delay = $delay;
+        $this->loop = $loop;
+    }
+
+    public function connect($uri)
+    {
+        $connectionManager = $this->connectionManager;
+
+        return Timer\resolve($this->delay, $this->loop)->then(function () use ($connectionManager, $uri) {
+            return $connectionManager->connect($uri);
+        });
+    }
+}
diff --git a/vendor/clue/connection-manager-extra/src/ConnectionManagerReject.php b/vendor/clue/connection-manager-extra/src/ConnectionManagerReject.php
new file mode 100644
index 0000000..1222c83
--- /dev/null
+++ b/vendor/clue/connection-manager-extra/src/ConnectionManagerReject.php
@@ -0,0 +1,41 @@
+<?php
+
+namespace ConnectionManager\Extra;
+
+use React\Socket\ConnectorInterface;
+use React\Promise;
+use Exception;
+
+// a simple connection manager that rejects every single connection attempt
+class ConnectionManagerReject implements ConnectorInterface
+{
+    private $reason = 'Connection rejected';
+
+    /**
+     * @param null|string|callable $reason
+     */
+    public function __construct($reason = null)
+    {
+        if ($reason !== null) {
+            $this->reason = $reason;
+        }
+    }
+
+    public function connect($uri)
+    {
+        $reason = $this->reason;
+        if (!is_string($reason)) {
+            try {
+                $reason = $reason($uri);
+            } catch (\Exception $e) {
+                $reason = $e;
+            }
+        }
+
+        if (!$reason instanceof \Exception) {
+            $reason = new Exception($reason);
+        }
+
+        return Promise\reject($reason);
+    }
+}
diff --git a/vendor/clue/connection-manager-extra/src/ConnectionManagerRepeat.php b/vendor/clue/connection-manager-extra/src/ConnectionManagerRepeat.php
new file mode 100644
index 0000000..10f3f5a
--- /dev/null
+++ b/vendor/clue/connection-manager-extra/src/ConnectionManagerRepeat.php
@@ -0,0 +1,52 @@
+<?php
+
+namespace ConnectionManager\Extra;
+
+use React\Socket\ConnectorInterface;
+use InvalidArgumentException;
+use Exception;
+use React\Promise\Promise;
+use React\Promise\CancellablePromiseInterface;
+
+class ConnectionManagerRepeat implements ConnectorInterface
+{
+    protected $connectionManager;
+    protected $maximumTries;
+
+    public function __construct(ConnectorInterface $connectionManager, $maximumTries)
+    {
+        if ($maximumTries < 1) {
+            throw new InvalidArgumentException('Maximum number of tries must be >= 1');
+        }
+        $this->connectionManager = $connectionManager;
+        $this->maximumTries = $maximumTries;
+    }
+
+    public function connect($uri)
+    {
+        $tries = $this->maximumTries;
+        $connector = $this->connectionManager;
+
+        return new Promise(function ($resolve, $reject) use ($uri, &$pending, &$tries, $connector) {
+            $try = function ($error = null) use (&$try, &$pending, &$tries, $uri, $connector, $resolve, $reject) {
+                if ($tries > 0) {
+                    --$tries;
+                    $pending = $connector->connect($uri);
+                    $pending->then($resolve, $try);
+                } else {
+                    $reject(new Exception('Connection still fails even after retrying', 0, $error));
+                }
+            };
+
+            $try();
+        }, function ($_, $reject) use (&$pending, &$tries) {
+            // stop retrying, reject results and cancel pending attempt
+            $tries = 0;
+            $reject(new \RuntimeException('Cancelled'));
+
+            if ($pending instanceof CancellablePromiseInterface) {
+                $pending->cancel();
+            }
+        });
+    }
+}
diff --git a/vendor/clue/connection-manager-extra/src/ConnectionManagerSwappable.php b/vendor/clue/connection-manager-extra/src/ConnectionManagerSwappable.php
new file mode 100644
index 0000000..d133225
--- /dev/null
+++ b/vendor/clue/connection-manager-extra/src/ConnectionManagerSwappable.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace ConnectionManager\Extra;
+
+use React\Socket\ConnectorInterface;
+
+// connection manager decorator which simplifies exchanging the actual connection manager during runtime
+class ConnectionManagerSwappable implements ConnectorInterface
+{
+    protected $connectionManager;
+
+    public function __construct(ConnectorInterface $connectionManager)
+    {
+        $this->connectionManager = $connectionManager;
+    }
+
+    public function connect($uri)
+    {
+        return $this->connectionManager->connect($uri);
+    }
+
+    public function setConnectionManager(ConnectorInterface $connectionManager)
+    {
+        $this->connectionManager = $connectionManager;
+    }
+}
diff --git a/vendor/clue/connection-manager-extra/src/ConnectionManagerTimeout.php b/vendor/clue/connection-manager-extra/src/ConnectionManagerTimeout.php
new file mode 100644
index 0000000..5ec0872
--- /dev/null
+++ b/vendor/clue/connection-manager-extra/src/ConnectionManagerTimeout.php
@@ -0,0 +1,35 @@
+<?php
+
+namespace ConnectionManager\Extra;
+
+use React\Socket\ConnectorInterface;
+use React\EventLoop\LoopInterface;
+use React\Promise\Timer;
+
+class ConnectionManagerTimeout implements ConnectorInterface
+{
+    private $connectionManager;
+    private $timeout;
+    private $loop;
+
+    public function __construct(ConnectorInterface $connectionManager, $timeout, LoopInterface $loop)
+    {
+        $this->connectionManager = $connectionManager;
+        $this->timeout = $timeout;
+        $this->loop = $loop;
+    }
+
+    public function connect($uri)
+    {
+        $promise = $this->connectionManager->connect($uri);
+
+        return Timer\timeout($promise, $this->timeout, $this->loop)->then(null, function ($e) use ($promise) {
+            // connection successfully established but timeout already expired => close successful connection
+            $promise->then(function ($connection) {
+                $connection->end();
+            });
+
+            throw $e;
+        });
+    }
+}
diff --git a/vendor/clue/connection-manager-extra/src/Multiple/ConnectionManagerConcurrent.php b/vendor/clue/connection-manager-extra/src/Multiple/ConnectionManagerConcurrent.php
new file mode 100644
index 0000000..c1eb9cf
--- /dev/null
+++ b/vendor/clue/connection-manager-extra/src/Multiple/ConnectionManagerConcurrent.php
@@ -0,0 +1,36 @@
+<?php
+
+namespace ConnectionManager\Extra\Multiple;
+
+use ConnectionManager\Extra\Multiple\ConnectionManagerConsecutive;
+use React\Promise;
+use React\Promise\CancellablePromiseInterface;
+
+class ConnectionManagerConcurrent extends ConnectionManagerConsecutive
+{
+    public function connect($uri)
+    {
+        $all = array();
+        foreach ($this->managers as $connector) {
+            /* @var $connection Connector */
+            $all []= $connector->connect($uri);
+        }
+        return Promise\any($all)->then(function ($conn) use ($all) {
+            // a connection attempt succeeded
+            // => cancel all pending connection attempts
+            foreach ($all as $promise) {
+                if ($promise instanceof CancellablePromiseInterface) {
+                    $promise->cancel();
+                }
+
+                // if promise resolves despite cancellation, immediately close stream
+                $promise->then(function ($stream) use ($conn) {
+                    if ($stream !== $conn) {
+                        $stream->close();
+                    }
+                });
+            }
+            return $conn;
+        });
+    }
+}
diff --git a/vendor/clue/connection-manager-extra/src/Multiple/ConnectionManagerConsecutive.php b/vendor/clue/connection-manager-extra/src/Multiple/ConnectionManagerConsecutive.php
new file mode 100644
index 0000000..1474b85
--- /dev/null
+++ b/vendor/clue/connection-manager-extra/src/Multiple/ConnectionManagerConsecutive.php
@@ -0,0 +1,62 @@
+<?php
+
+namespace ConnectionManager\Extra\Multiple;
+
+use React\Socket\ConnectorInterface;
+use React\Promise;
+use UnderflowException;
+use React\Promise\CancellablePromiseInterface;
+
+class ConnectionManagerConsecutive implements ConnectorInterface
+{
+    protected $managers;
+
+    /**
+     *
+     * @param ConnectorInterface[] $managers
+     */
+    public function __construct(array $managers)
+    {
+        if (!$managers) {
+            throw new \InvalidArgumentException('List of connectors must not be empty');
+        }
+        $this->managers = $managers;
+    }
+
+    public function connect($uri)
+    {
+        return $this->tryConnection($this->managers, $uri);
+    }
+
+    /**
+     *
+     * @param ConnectorInterface[] $managers
+     * @param string $uri
+     * @return Promise
+     * @internal
+     */
+    public function tryConnection(array $managers, $uri)
+    {
+        return new Promise\Promise(function ($resolve, $reject) use (&$managers, &$pending, $uri) {
+            $try = function () use (&$try, &$managers, $uri, $resolve, $reject, &$pending) {
+                if (!$managers) {
+                    return $reject(new UnderflowException('No more managers to try to connect through'));
+                }
+
+                $manager = array_shift($managers);
+                $pending = $manager->connect($uri);
+                $pending->then($resolve, $try);
+            };
+
+            $try();
+        }, function ($_, $reject) use (&$managers, &$pending) {
+            // stop retrying, reject results and cancel pending attempt
+            $managers = array();
+            $reject(new \RuntimeException('Cancelled'));
+
+            if ($pending instanceof CancellablePromiseInterface) {
+                $pending->cancel();
+            }
+        });
+    }
+}
diff --git a/vendor/clue/connection-manager-extra/src/Multiple/ConnectionManagerRandom.php b/vendor/clue/connection-manager-extra/src/Multiple/ConnectionManagerRandom.php
new file mode 100644
index 0000000..88d1fd6
--- /dev/null
+++ b/vendor/clue/connection-manager-extra/src/Multiple/ConnectionManagerRandom.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace ConnectionManager\Extra\Multiple;
+
+class ConnectionManagerRandom extends ConnectionManagerConsecutive
+{
+    public function connect($uri)
+    {
+        $managers = $this->managers;
+        shuffle($managers);
+
+        return $this->tryConnection($managers, $uri);
+    }
+}
diff --git a/vendor/clue/connection-manager-extra/src/Multiple/ConnectionManagerSelective.php b/vendor/clue/connection-manager-extra/src/Multiple/ConnectionManagerSelective.php
new file mode 100644
index 0000000..859ea90
--- /dev/null
+++ b/vendor/clue/connection-manager-extra/src/Multiple/ConnectionManagerSelective.php
@@ -0,0 +1,111 @@
+<?php
+
+namespace ConnectionManager\Extra\Multiple;
+
+use React\Socket\ConnectorInterface;
+use React\Promise;
+use UnderflowException;
+use InvalidArgumentException;
+
+class ConnectionManagerSelective implements ConnectorInterface
+{
+    private $managers;
+
+    /**
+     *
+     * @param ConnectorInterface[] $managers
+     */
+    public function __construct(array $managers)
+    {
+        foreach ($managers as $filter => $manager) {
+            $host = $filter;
+            $portMin = 0;
+            $portMax = 65535;
+
+            // search colon (either single one OR preceded by "]" due to IPv6)
+            $colon = strrpos($host, ':');
+            if ($colon !== false && (strpos($host, ':') === $colon || substr($host, $colon - 1, 1) === ']' )) {
+                if (!isset($host[$colon + 1])) {
+                    throw new InvalidArgumentException('Entry "' . $filter . '" has no port after colon');
+                }
+
+                $minus = strpos($host, '-', $colon);
+                if ($minus === false) {
+                    $portMin = $portMax = (int)substr($host, $colon + 1);
+
+                    if (substr($host, $colon + 1) !== (string)$portMin) {
+                        throw new InvalidArgumentException('Entry "' . $filter . '" has no valid port after colon');
+                    }
+                } else {
+                    $portMin = (int)substr($host, $colon + 1, ($minus - $colon));
+                    $portMax = (int)substr($host, $minus + 1);
+
+                    if (substr($host, $colon + 1) !== ($portMin . '-' . $portMax)) {
+                        throw new InvalidArgumentException('Entry "' . $filter . '" has no valid port range after colon');
+                    }
+
+                    if ($portMin > $portMax) {
+                        throw new InvalidArgumentException('Entry "' . $filter . '" has port range mixed up');
+                    }
+                }
+                $host = substr($host, 0, $colon);
+            }
+
+            if ($host === '') {
+                throw new InvalidArgumentException('Entry "' . $filter . '" has an empty host');
+            }
+
+            if (!$manager instanceof ConnectorInterface) {
+                throw new InvalidArgumentException('Entry "' . $filter . '" is not a valid connector');
+            }
+        }
+
+        $this->managers = $managers;
+    }
+
+    public function connect($uri)
+    {
+        $parts = parse_url((strpos($uri, '://') === false ? 'tcp://' : '') . $uri);
+        if (!isset($parts) || !isset($parts['scheme'], $parts['host'], $parts['port'])) {
+            return Promise\reject(new InvalidArgumentException('Invalid URI'));
+        }
+
+        $connector = $this->getConnectorForTarget(
+            trim($parts['host'], '[]'),
+            $parts['port']
+        );
+
+        if ($connector === null) {
+            return Promise\reject(new UnderflowException('No connector for given target found'));
+        }
+
+        return $connector->connect($uri);
+    }
+
+    private function getConnectorForTarget($targetHost, $targetPort)
+    {
+        foreach ($this->managers as $host => $connector) {
+            $portMin = 0;
+            $portMax = 65535;
+
+            // search colon (either single one OR preceded by "]" due to IPv6)
+            $colon = strrpos($host, ':');
+            if ($colon !== false && (strpos($host, ':') === $colon || substr($host, $colon - 1, 1) === ']' )) {
+                $minus = strpos($host, '-', $colon);
+                if ($minus === false) {
+                    $portMin = $portMax = (int)substr($host, $colon + 1);
+                } else {
+                    $portMin = (int)substr($host, $colon + 1, ($minus - $colon));
+                    $portMax = (int)substr($host, $minus + 1);
+                }
+                $host = trim(substr($host, 0, $colon), '[]');
+            }
+
+            if ($targetPort >= $portMin && $targetPort <= $portMax && fnmatch($host, $targetHost)) {
+                return $connector;
+            }
+        }
+
+        return null;
+    }
+}
diff --git a/vendor/clue/http-proxy-react/LICENSE b/vendor/clue/http-proxy-react/LICENSE
new file mode 100644
index 0000000..7baae8e
--- /dev/null
+++ b/vendor/clue/http-proxy-react/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2016 Christian Lück
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/vendor/clue/http-proxy-react/composer.json b/vendor/clue/http-proxy-react/composer.json
new file mode 100644
index 0000000..9840cf0
--- /dev/null
+++ b/vendor/clue/http-proxy-react/composer.json
@@ -0,0 +1,31 @@
+{
+    "name": "clue/http-proxy-react",
+    "description": "Async HTTP proxy connector, tunnel any TCP/IP-based protocol through an HTTP CONNECT proxy server, built on top of ReactPHP",
+    "keywords": ["HTTP", "CONNECT", "proxy", "ReactPHP", "async"],
+    "homepage": "https://github.com/clue/reactphp-http-proxy",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Christian Lück",
+            "email": "christian@clue.engineering"
+        }
+    ],
+    "require": {
+        "php": ">=5.3",
+        "react/promise": " ^2.1 || ^1.2.1",
+        "react/socket": "^1.9",
+        "ringcentral/psr7": "^1.2"
+    },
+    "require-dev": {
+        "clue/block-react": "^1.1",
+        "phpunit/phpunit": "^9.3 || ^5.7 || ^4.8",
+        "react/event-loop": "^1.2",
+        "react/http": "^1.5"
+    },
+    "autoload": {
+        "psr-4": { "Clue\\React\\HttpProxy\\": "src/" }
+    },
+    "autoload-dev": {
+        "psr-4": { "Clue\\Tests\\React\\HttpProxy\\": "tests/" }
+    }
+}
diff --git a/vendor/clue/http-proxy-react/src/ProxyConnector.php b/vendor/clue/http-proxy-react/src/ProxyConnector.php
new file mode 100644
index 0000000..0bca17e
--- /dev/null
+++ b/vendor/clue/http-proxy-react/src/ProxyConnector.php
@@ -0,0 +1,274 @@
+<?php
+
+namespace Clue\React\HttpProxy;
+
+use Exception;
+use InvalidArgumentException;
+use RuntimeException;
+use RingCentral\Psr7;
+use React\Promise;
+use React\Promise\Deferred;
+use React\Socket\ConnectionInterface;
+use React\Socket\Connector;
+use React\Socket\ConnectorInterface;
+use React\Socket\FixedUriConnector;
+use React\Socket\UnixConnector;
+
+/**
+ * A simple Connector that uses an HTTP CONNECT proxy to create plain TCP/IP connections to any destination
+ *
+ * [you] -> [proxy] -> [destination]
+ *
+ * This is most frequently used to issue HTTPS requests to your destination.
+ * However, this is actually performed on a higher protocol layer and this
+ * connector is actually inherently a general-purpose plain TCP/IP connector.
+ *
+ * Note that HTTP CONNECT proxies often restrict which ports one may connect to.
+ * Many (public) proxy servers do in fact limit this to HTTPS (443) only.
+ *
+ * If you want to establish a TLS connection (such as HTTPS) between you and
+ * your destination, you may want to wrap this connector in a SecureConnector
+ * instance.
+ *
+ * Note that communication between the client and the proxy is usually via an
+ * unencrypted, plain TCP/IP HTTP connection. Note that this is the most common
+ * setup, because you can still establish a TLS connection between you and the
+ * destination host as above.
+ *
+ * If you want to connect to a (rather rare) HTTPS proxy, you may want use its
+ * HTTPS port (443) and use a SecureConnector instance to create a secure
+ * connection to the proxy.
+ *
+ * @link https://tools.ietf.org/html/rfc7231#section-4.3.6
+ */
+class ProxyConnector implements ConnectorInterface
+{
+    private $connector;
+    private $proxyUri;
+    private $headers = '';
+
+    /**
+     * Instantiate a new ProxyConnector which uses the given $proxyUrl
+     *
+     * @param string $proxyUrl The proxy URL may or may not contain a scheme and
+     *     port definition. The default port will be `80` for HTTP (or `443` for
+     *     HTTPS), but many common HTTP proxy servers use custom ports.
+     * @param ?ConnectorInterface $connector (Optional) Connector to use.
+     * @param array $httpHeaders Custom HTTP headers to be sent to the proxy.
+     * @throws InvalidArgumentException if the proxy URL is invalid
+     */
+    public function __construct($proxyUrl, ConnectorInterface $connector = null, array $httpHeaders = array())
+    {
+        // support `http+unix://` scheme for Unix domain socket (UDS) paths
+        if (preg_match('/^http\+unix:\/\/(.*?@)?(.+?)$/', $proxyUrl, $match)) {
+            // rewrite URI to parse authentication from dummy host
+            $proxyUrl = 'http://' . $match[1] . 'localhost';
+
+            // connector uses Unix transport scheme and explicit path given
+            $connector = new FixedUriConnector(
+                'unix://' . $match[2],
+                $connector ?: new UnixConnector()
+            );
+        }
+
+        if (strpos($proxyUrl, '://') === false) {
+            $proxyUrl = 'http://' . $proxyUrl;
+        }
+
+        $parts = parse_url($proxyUrl);
+        if (!$parts || !isset($parts['scheme'], $parts['host']) || ($parts['scheme'] !== 'http' && $parts['scheme'] !== 'https')) {
+            throw new InvalidArgumentException('Invalid proxy URL "' . $proxyUrl . '"');
+        }
+
+        // apply default port and TCP/TLS transport for given scheme
+        if (!isset($parts['port'])) {
+            $parts['port'] = $parts['scheme'] === 'https' ? 443 : 80;
+        }
+        $parts['scheme'] = $parts['scheme'] === 'https' ? 'tls' : 'tcp';
+
+        $this->connector = $connector ?: new Connector();
+        $this->proxyUri = $parts['scheme'] . '://' . $parts['host'] . ':' . $parts['port'];
+
+        // prepare Proxy-Authorization header if URI contains username/password
+        if (isset($parts['user']) || isset($parts['pass'])) {
+            $this->headers = 'Proxy-Authorization: Basic ' . base64_encode(
+                rawurldecode($parts['user'] . ':' . (isset($parts['pass']) ? $parts['pass'] : ''))
+            ) . "\r\n";
+        }
+
+        // append any additional custom request headers
+        foreach ($httpHeaders as $name => $values) {
+            foreach ((array)$values as $value) {
+                $this->headers .= $name . ': ' . $value . "\r\n";
+            }
+        }
+    }
+
+    public function connect($uri)
+    {
+        if (strpos($uri, '://') === false) {
+            $uri = 'tcp://' . $uri;
+        }
+
+        $parts = parse_url($uri);
+        if (!$parts || !isset($parts['scheme'], $parts['host'], $parts['port']) || $parts['scheme'] !== 'tcp') {
+            return Promise\reject(new InvalidArgumentException('Invalid target URI specified'));
+        }
+
+        $target = $parts['host'] . ':' . $parts['port'];
+
+        // construct URI to HTTP CONNECT proxy server to connect to
+        $proxyUri = $this->proxyUri;
+
+        // append path from URI if given
+        if (isset($parts['path'])) {
+            $proxyUri .= $parts['path'];
+        }
+
+        // parse query args
+        $args = array();
+        if (isset($parts['query'])) {
+            parse_str($parts['query'], $args);
+        }
+
+        // append hostname from URI to query string unless explicitly given
+        if (!isset($args['hostname'])) {
+            $args['hostname'] = trim($parts['host'], '[]');
+        }
+
+        // append query string
+        $proxyUri .= '?' . http_build_query($args, '', '&');
+
+        // append fragment from URI if given
+        if (isset($parts['fragment'])) {
+            $proxyUri .= '#' . $parts['fragment'];
+        }
+
+        $connecting = $this->connector->connect($proxyUri);
+
+        $deferred = new Deferred(function ($_, $reject) use ($connecting, $uri) {
+            $reject(new RuntimeException(
+                'Connection to ' . $uri . ' cancelled while waiting for proxy (ECONNABORTED)',
+                defined('SOCKET_ECONNABORTED') ? SOCKET_ECONNABORTED : 103
+            ));
+
+            // either close active connection or cancel pending connection attempt
+            $connecting->then(function (ConnectionInterface $stream) {
+                $stream->close();
+            });
+            $connecting->cancel();
+        });
+
+        $headers = $this->headers;
+        $connecting->then(function (ConnectionInterface $stream) use ($target, $headers, $deferred, $uri) {
+            // keep buffering data until headers are complete
+            $buffer = '';
+            $stream->on('data', $fn = function ($chunk) use (&$buffer, $deferred, $stream, &$fn, $uri) {
+                $buffer .= $chunk;
+
+                $pos = strpos($buffer, "\r\n\r\n");
+                if ($pos !== false) {
+                    // end of headers received => stop buffering
+                    $stream->removeListener('data', $fn);
+                    $fn = null;
+
+                    // try to parse headers as response message
+                    try {
+                        $response = Psr7\parse_response(substr($buffer, 0, $pos));
+                    } catch (Exception $e) {
+                        $deferred->reject(new RuntimeException(
+                            'Connection to ' . $uri . ' failed because proxy returned invalid response (EBADMSG)',
+                            defined('SOCKET_EBADMSG') ? SOCKET_EBADMSG: 71,
+                            $e
+                        ));
+                        $stream->close();
+                        return;
+                    }
+
+                    if ($response->getStatusCode() === 407) {
+                        // map status code 407 (Proxy Authentication Required) to EACCES
+                        $deferred->reject(new RuntimeException(
+                            'Connection to ' . $uri . ' failed because proxy denied access with HTTP error code ' . $response->getStatusCode() . ' (' . $response->getReasonPhrase() . ') (EACCES)',
+                            defined('SOCKET_EACCES') ? SOCKET_EACCES : 13
+                        ));
+                        $stream->close();
+                        return;
+                    } elseif ($response->getStatusCode() < 200 || $response->getStatusCode() >= 300) {
+                        // map non-2xx status code to ECONNREFUSED
+                        $deferred->reject(new RuntimeException(
+                            'Connection to ' . $uri . ' failed because proxy refused connection with HTTP error code ' . $response->getStatusCode() . ' (' . $response->getReasonPhrase() . ') (ECONNREFUSED)',
+                            defined('SOCKET_ECONNREFUSED') ? SOCKET_ECONNREFUSED : 111
+                        ));
+                        $stream->close();
+                        return;
+                    }
+
+                    // all okay, resolve with stream instance
+                    $deferred->resolve($stream);
+
+                    // emit remaining incoming as data event
+                    $buffer = (string)substr($buffer, $pos + 4);
+                    if ($buffer !== '') {
+                        $stream->emit('data', array($buffer));
+                        $buffer = '';
+                    }
+                    return;
+                }
+
+                // stop buffering when 8 KiB have been read
+                if (isset($buffer[8192])) {
+                    $deferred->reject(new RuntimeException(
+                        'Connection to ' . $uri . ' failed because proxy response headers exceed maximum of 8 KiB (EMSGSIZE)',
+                        defined('SOCKET_EMSGSIZE') ? SOCKET_EMSGSIZE : 90
+                    ));
+                    $stream->close();
+                }
+            });
+
+            $stream->on('error', function (Exception $e) use ($deferred, $uri) {
+                $deferred->reject(new RuntimeException(
+                    'Connection to ' . $uri . ' failed because connection to proxy caused a stream error (EIO)',
+                    defined('SOCKET_EIO') ? SOCKET_EIO : 5,
+                    $e
+                ));
+            });
+
+            $stream->on('close', function () use ($deferred, $uri) {
+                $deferred->reject(new RuntimeException(
+                    'Connection to ' . $uri . ' failed because connection to proxy was lost while waiting for response (ECONNRESET)',
+                    defined('SOCKET_ECONNRESET') ? SOCKET_ECONNRESET : 104
+                ));
+            });
+
+            $stream->write("CONNECT " . $target . " HTTP/1.1\r\nHost: " . $target . "\r\n" . $headers . "\r\n");
+        }, function (Exception $e) use ($deferred, $uri) {
+            $deferred->reject($e = new RuntimeException(
+                'Connection to ' . $uri . ' failed because connection to proxy failed (ECONNREFUSED)',
+                defined('SOCKET_ECONNREFUSED') ? SOCKET_ECONNREFUSED : 111,
+                $e
+            ));
+
+            // avoid garbage references by replacing all closures in call stack.
+            // what a lovely piece of code!
+            $r = new \ReflectionProperty('Exception', 'trace');
+            $r->setAccessible(true);
+            $trace = $r->getValue($e);
+
+            // Exception trace arguments are not available on some PHP 7.4 installs
+            // @codeCoverageIgnoreStart
+            foreach ($trace as &$one) {
+                if (isset($one['args'])) {
+                    foreach ($one['args'] as &$arg) {
+                        if ($arg instanceof \Closure) {
+                            $arg = 'Object(' . get_class($arg) . ')';
+                        }
+                    }
+                }
+            }
+            // @codeCoverageIgnoreEnd
+            $r->setValue($e, $trace);
+        });
+
+        return $deferred->promise();
+    }
+}
diff --git a/vendor/clue/mq-react/LICENSE b/vendor/clue/mq-react/LICENSE
new file mode 100644
index 0000000..984ff9d
--- /dev/null
+++ b/vendor/clue/mq-react/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2018 Christian Lück
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/vendor/clue/mq-react/composer.json b/vendor/clue/mq-react/composer.json
new file mode 100644
index 0000000..d6e7793
--- /dev/null
+++ b/vendor/clue/mq-react/composer.json
@@ -0,0 +1,29 @@
+{
+    "name": "clue/mq-react",
+    "description": "Mini Queue, the lightweight in-memory message queue to concurrently do many (but not too many) things at once, built on top of ReactPHP",
+    "keywords": ["Message Queue", "Mini Queue", "job", "message", "worker", "queue", "rate limit", "throttle", "concurrency", "ReactPHP", "async"],
+    "homepage": "https://github.com/clue/reactphp-mq",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Christian Lück",
+            "email": "christian@clue.engineering"
+        }
+    ],
+    "autoload": {
+        "psr-4": { "Clue\\React\\Mq\\": "src/" }
+    },
+    "autoload-dev": {
+        "psr-4": { "Clue\\Tests\\React\\Mq\\": "tests/" }
+    },
+    "require": {
+        "php": ">=5.3",
+        "react/promise": "^2.2.1 || ^1.2.1"
+    },
+    "require-dev": {
+        "clue/block-react": "^1.0",
+        "phpunit/phpunit": "^9.3 || ^5.7 || ^4.8.35",
+        "react/event-loop": "^1.2",
+        "react/http": "^1.5"
+    }
+}
diff --git a/vendor/clue/mq-react/src/Queue.php b/vendor/clue/mq-react/src/Queue.php
new file mode 100644
index 0000000..7d399ac
--- /dev/null
+++ b/vendor/clue/mq-react/src/Queue.php
@@ -0,0 +1,448 @@
+<?php
+
+namespace Clue\React\Mq;
+
+use React\Promise;
+use React\Promise\CancellablePromiseInterface;
+use React\Promise\Deferred;
+use React\Promise\PromiseInterface;
+
+/**
+ * The `Queue` is responsible for managing your operations and ensuring not too
+ * many operations are executed at once. It's a very simple and lightweight
+ * in-memory implementation of the
+ * [leaky bucket](https://en.wikipedia.org/wiki/Leaky_bucket#As_a_queue) algorithm.
+ *
+ * This means that you control how many operations can be executed concurrently.
+ * If you add a job to the queue and it still below the limit, it will be executed
+ * immediately. If you keep adding new jobs to the queue and its concurrency limit
+ * is reached, it will not start a new operation and instead queue this for future
+ * execution. Once one of the pending operations complete, it will pick the next
+ * job from the queue and execute this operation.
+ */
+class Queue implements \Countable
+{
+    private $concurrency;
+    private $limit;
+    private $handler;
+
+    private $pending = 0;
+    private $queue = array();
+
+    /**
+     * Concurrently process all given jobs through the given `$handler`.
+     *
+     * This is a convenience method which uses the `Queue` internally to
+     * schedule all jobs while limiting concurrency to ensure no more than
+     * `$concurrency` jobs ever run at once. It will return a promise which
+     * resolves with the results of all jobs on success.
+     *
+     * ```php
+     * $browser = new React\Http\Browser();
+     *
+     * $promise = Queue::all(3, $urls, function ($url) use ($browser) {
+     *     return $browser->get($url);
+     * });
+     *
+     * $promise->then(function (array $responses) {
+     *     echo 'All ' . count($responses) . ' successful!' . PHP_EOL;
+     * });
+     * ```
+     *
+     * If either of the jobs fail, it will reject the resulting promise and will
+     * try to cancel all outstanding jobs. Similarly, calling `cancel()` on the
+     * resulting promise will try to cancel all outstanding jobs. See
+     * [promises](#promises) and [cancellation](#cancellation) for details.
+     *
+     * The `$concurrency` parameter sets a new soft limit for the maximum number
+     * of jobs to handle concurrently. Finding a good concurrency limit depends
+     * on your particular use case. It's common to limit concurrency to a rather
+     * small value, as doing more than a dozen of things at once may easily
+     * overwhelm the receiving side. Using a `1` value will ensure that all jobs
+     * are processed one after another, effectively creating a "waterfall" of
+     * jobs. Using a value less than 1 will reject with an
+     * `InvalidArgumentException` without processing any jobs.
+     *
+     * ```php
+     * // handle up to 10 jobs concurrently
+     * $promise = Queue::all(10, $jobs, $handler);
+     * ```
+     *
+     * ```php
+     * // handle each job after another without concurrency (waterfall)
+     * $promise = Queue::all(1, $jobs, $handler);
+     * ```
+     *
+     * The `$jobs` parameter must be an array with all jobs to process. Each
+     * value in this array will be passed to the `$handler` to start one job.
+     * The array keys will be preserved in the resulting array, while the array
+     * values will be replaced with the job results as returned by the
+     * `$handler`. If this array is empty, this method will resolve with an
+     * empty array without processing any jobs.
+     *
+     * The `$handler` parameter must be a valid callable that accepts your job
+     * parameters, invokes the appropriate operation and returns a Promise as a
+     * placeholder for its future result. If the given argument is not a valid
+     * callable, this method will reject with an `InvalidArgumentException`
+     * without processing any jobs.
+     *
+     * ```php
+     * // using a Closure as handler is usually recommended
+     * $promise = Queue::all(10, $jobs, function ($url) use ($browser) {
+     *     return $browser->get($url);
+     * });
+     * ```
+     *
+     * ```php
+     * // accepts any callable, so PHP's array notation is also supported
+     * $promise = Queue::all(10, $jobs, array($browser, 'get'));
+     * ```
+     *
+     * > Keep in mind that returning an array of response messages means that
+     *   the whole response body has to be kept in memory.
+     *
+     * @param int      $concurrency concurrency soft limit
+     * @param array    $jobs
+     * @param callable $handler
+     * @return PromiseInterface Returns a Promise<mixed[]> which resolves with an array of all resolution values
+     *     or rejects when any of the operations reject.
+     */
+    public static function all($concurrency, array $jobs, $handler)
+    {
+        try {
+            // limit number of concurrent operations
+            $q = new self($concurrency, null, $handler);
+        } catch (\InvalidArgumentException $e) {
+            // reject if $concurrency or $handler is invalid
+            return Promise\reject($e);
+        }
+
+        // try invoking all operations and automatically queue excessive ones
+        $promises = array_map($q, $jobs);
+
+        return new Promise\Promise(function ($resolve, $reject) use ($promises) {
+            Promise\all($promises)->then($resolve, function ($e) use ($promises, $reject) {
+                // cancel all pending promises if a single promise fails
+                foreach (array_reverse($promises) as $promise) {
+                    if ($promise instanceof CancellablePromiseInterface) {
+                        $promise->cancel();
+                    }
+                }
+
+                // reject with original rejection message
+                $reject($e);
+            });
+        }, function () use ($promises) {
+            // cancel all pending promises on cancellation
+            foreach (array_reverse($promises) as $promise) {
+                if ($promise instanceof CancellablePromiseInterface) {
+                    $promise->cancel();
+                }
+            }
+        });
+    }
+
+    /**
+     * Concurrently process the given jobs through the given `$handler` and
+     * resolve with first resolution value.
+     *
+     * This is a convenience method which uses the `Queue` internally to
+     * schedule all jobs while limiting concurrency to ensure no more than
+     * `$concurrency` jobs ever run at once. It will return a promise which
+     * resolves with the result of the first job on success and will then try
+     * to `cancel()` all outstanding jobs.
+     *
+     * ```php
+     * $browser = new React\Http\Browser();
+     *
+     * $promise = Queue::any(3, $urls, function ($url) use ($browser) {
+     *     return $browser->get($url);
+     * });
+     *
+     * $promise->then(function (ResponseInterface $response) {
+     *     echo 'First response: ' . $response->getBody() . PHP_EOL;
+     * });
+     * ```
+     *
+     * If all of the jobs fail, it will reject the resulting promise. Similarly,
+     * calling `cancel()` on the resulting promise will try to cancel all
+     * outstanding jobs. See [promises](#promises) and
+     * [cancellation](#cancellation) for details.
+     *
+     * The `$concurrency` parameter sets a new soft limit for the maximum number
+     * of jobs to handle concurrently. Finding a good concurrency limit depends
+     * on your particular use case. It's common to limit concurrency to a rather
+     * small value, as doing more than a dozen of things at once may easily
+     * overwhelm the receiving side. Using a `1` value will ensure that all jobs
+     * are processed one after another, effectively creating a "waterfall" of
+     * jobs. Using a value less than 1 will reject with an
+     * `InvalidArgumentException` without processing any jobs.
+     *
+     * ```php
+     * // handle up to 10 jobs concurrently
+     * $promise = Queue::any(10, $jobs, $handler);
+     * ```
+     *
+     * ```php
+     * // handle each job after another without concurrency (waterfall)
+     * $promise = Queue::any(1, $jobs, $handler);
+     * ```
+     *
+     * The `$jobs` parameter must be an array with all jobs to process. Each
+     * value in this array will be passed to the `$handler` to start one job.
+     * The array keys have no effect, the promise will simply resolve with the
+     * job results of the first successful job as returned by the `$handler`.
+     * If this array is empty, this method will reject without processing any
+     * jobs.
+     *
+     * The `$handler` parameter must be a valid callable that accepts your job
+     * parameters, invokes the appropriate operation and returns a Promise as a
+     * placeholder for its future result. If the given argument is not a valid
+     * callable, this method will reject with an `InvalidArgumentExceptionn`
+     * without processing any jobs.
+     *
+     * ```php
+     * // using a Closure as handler is usually recommended
+     * $promise = Queue::any(10, $jobs, function ($url) use ($browser) {
+     *     return $browser->get($url);
+     * });
+     * ```
+     *
+     * ```php
+     * // accepts any callable, so PHP's array notation is also supported
+     * $promise = Queue::any(10, $jobs, array($browser, 'get'));
+     * ```
+     *
+     * @param int      $concurrency concurrency soft limit
+     * @param array    $jobs
+     * @param callable $handler
+     * @return PromiseInterface Returns a Promise<mixed> which resolves with a single resolution value
+     *     or rejects when all of the operations reject.
+     */
+    public static function any($concurrency, array $jobs, $handler)
+    {
+        // explicitly reject with empty jobs (https://github.com/reactphp/promise/pull/34)
+        if (!$jobs) {
+            return Promise\reject(new \UnderflowException('No jobs given'));
+        }
+
+        try {
+            // limit number of concurrent operations
+            $q = new self($concurrency, null, $handler);
+        } catch (\InvalidArgumentException $e) {
+            // reject if $concurrency or $handler is invalid
+            return Promise\reject($e);
+        }
+
+        // try invoking all operations and automatically queue excessive ones
+        $promises = array_map($q, $jobs);
+
+        return new Promise\Promise(function ($resolve, $reject) use ($promises) {
+            Promise\any($promises)->then(function ($result) use ($promises, $resolve) {
+                // cancel all pending promises if a single result is ready
+                foreach (array_reverse($promises) as $promise) {
+                    if ($promise instanceof CancellablePromiseInterface) {
+                        $promise->cancel();
+                    }
+                }
+
+                // resolve with original resolution value
+                $resolve($result);
+            }, $reject);
+        }, function () use ($promises) {
+            // cancel all pending promises on cancellation
+            foreach (array_reverse($promises) as $promise) {
+                if ($promise instanceof CancellablePromiseInterface) {
+                    $promise->cancel();
+                }
+            }
+        });
+    }
+
+    /**
+     * Instantiates a new queue object.
+     *
+     * You can create any number of queues, for example when you want to apply
+     * different limits to different kind of operations.
+     *
+     * The `$concurrency` parameter sets a new soft limit for the maximum number
+     * of jobs to handle concurrently. Finding a good concurrency limit depends
+     * on your particular use case. It's common to limit concurrency to a rather
+     * small value, as doing more than a dozen of things at once may easily
+     * overwhelm the receiving side.
+     *
+     * The `$limit` parameter sets a new hard limit on how many jobs may be
+     * outstanding (kept in memory) at once. Depending on your particular use
+     * case, it's usually safe to keep a few hundreds or thousands of jobs in
+     * memory. If you do not want to apply an upper limit, you can pass a `null`
+     * value which is semantically more meaningful than passing a big number.
+     *
+     * ```php
+     * // handle up to 10 jobs concurrently, but keep no more than 1000 in memory
+     * $q = new Queue(10, 1000, $handler);
+     * ```
+     *
+     * ```php
+     * // handle up to 10 jobs concurrently, do not limit queue size
+     * $q = new Queue(10, null, $handler);
+     * ```
+     *
+     * ```php
+     * // handle up to 10 jobs concurrently, reject all further jobs
+     * $q = new Queue(10, 10, $handler);
+     * ```
+     *
+     * The `$handler` parameter must be a valid callable that accepts your job
+     * parameters, invokes the appropriate operation and returns a Promise as a
+     * placeholder for its future result.
+     *
+     * ```php
+     * // using a Closure as handler is usually recommended
+     * $q = new Queue(10, null, function ($url) use ($browser) {
+     *     return $browser->get($url);
+     * });
+     * ```
+     *
+     * ```php
+     * // PHP's array callable as handler is also supported
+     * $q = new Queue(10, null, array($browser, 'get'));
+     * ```
+     *
+     * @param int      $concurrency concurrency soft limit
+     * @param int|null $limit       queue hard limit or NULL=unlimited
+     * @param callable $handler
+     * @throws \InvalidArgumentException
+     */
+    public function __construct($concurrency, $limit, $handler)
+    {
+        if ($concurrency < 1 || ($limit !== null && ($limit < 1 || $concurrency > $limit))) {
+            throw new \InvalidArgumentException('Invalid limit given');
+        }
+        if (!is_callable($handler)) {
+            throw new \InvalidArgumentException('Invalid handler given');
+        }
+
+        $this->concurrency = $concurrency;
+        $this->limit = $limit;
+        $this->handler = $handler;
+    }
+
+    /**
+     * The Queue instance is invokable, so that invoking `$q(...$args)` will
+     * actually be forwarded as `$handler(...$args)` as given in the
+     * `$handler` argument when concurrency is still below limits.
+     *
+     * Each operation may take some time to complete, but due to its async nature you
+     * can actually start any number of (queued) operations. Once the concurrency limit
+     * is reached, this invocation will simply be queued and this will return a pending
+     * promise which will start the actual operation once another operation is
+     * completed. This means that this is handled entirely transparently and you do not
+     * need to worry about this concurrency limit yourself.
+     *
+     * @return \React\Promise\PromiseInterface
+     */
+    public function __invoke()
+    {
+        // happy path: simply invoke handler if we're below concurrency limit
+        if ($this->pending < $this->concurrency) {
+            ++$this->pending;
+
+            // invoke handler and await its resolution before invoking next queued job
+            return $this->await(
+                call_user_func_array($this->handler, func_get_args())
+            );
+        }
+
+        // we're currently above concurrency limit, make sure we do not exceed maximum queue limit
+        if ($this->limit !== null && $this->count() >= $this->limit) {
+            return Promise\reject(new \OverflowException('Maximum queue limit of ' . $this->limit . ' exceeded'));
+        }
+
+        // if we reach this point, then this job will need to be queued
+        // get next queue position
+        $queue =& $this->queue;
+        $queue[] = null;
+        end($queue);
+        $id = key($queue);
+
+        $deferred = new Deferred(function ($_, $reject) use (&$queue, $id, &$deferred) {
+            // forward cancellation to pending operation if it is currently executing
+            if (isset($deferred->pending) && $deferred->pending instanceof CancellablePromiseInterface) {
+                $deferred->pending->cancel();
+            }
+            unset($deferred->pending);
+
+            if (isset($deferred->args)) {
+                // queued promise cancelled before its handler is invoked
+                // remove from queue and reject explicitly
+                unset($queue[$id], $deferred->args);
+                $reject(new \RuntimeException('Cancelled queued job before processing started'));
+            }
+        });
+
+        // queue job to process if number of pending jobs is below concurrency limit again
+        $deferred->args = func_get_args();
+        $queue[$id] = $deferred;
+
+        return $deferred->promise();
+    }
+
+    #[\ReturnTypeWillChange]
+    public function count()
+    {
+        return $this->pending + count($this->queue);
+    }
+
+    /**
+     * @internal
+     */
+    public function await(PromiseInterface $promise)
+    {
+        $that = $this;
+
+        return $promise->then(function ($result) use ($that) {
+            $that->processQueue();
+
+            return $result;
+        }, function ($error) use ($that) {
+            $that->processQueue();
+
+            return Promise\reject($error);
+        });
+    }
+
+    /**
+     * @internal
+     */
+    public function processQueue()
+    {
+        // skip if we're still above concurrency limit or there's no queued job waiting
+        if (--$this->pending >= $this->concurrency || !$this->queue) {
+            return;
+        }
+
+        /* @var $deferred Deferred */
+        $deferred = reset($this->queue);
+        unset($this->queue[key($this->queue)]);
+
+        // once number of pending jobs is below concurrency limit again:
+        // await this situation, invoke handler and await its resolution before invoking next queued job
+        ++$this->pending;
+
+        $promise = call_user_func_array($this->handler, $deferred->args);
+        $deferred->pending = $promise;
+        unset($deferred->args);
+
+        // invoke handler and await its resolution before invoking next queued job
+        $this->await($promise)->then(
+            function ($result) use ($deferred) {
+                unset($deferred->pending);
+                $deferred->resolve($result);
+            },
+            function ($e) use ($deferred) {
+                unset($deferred->pending);
+                $deferred->reject($e);
+            }
+        );
+    }
+}
diff --git a/vendor/clue/redis-protocol/composer.json b/vendor/clue/redis-protocol/composer.json
new file mode 100644
index 0000000..d99e2ee
--- /dev/null
+++ b/vendor/clue/redis-protocol/composer.json
@@ -0,0 +1,19 @@
+{
+    "name": "clue/redis-protocol",
+    "description": "A streaming redis wire protocol parser and serializer implementation in PHP",
+    "keywords": ["streaming", "redis", "protocol", "parser", "serializer"],
+    "homepage": "https://github.com/clue/php-redis-protocol",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Christian Lück",
+            "email": "christian@lueck.tv"
+        }
+    ],
+    "require": {
+        "php": ">=5.3"
+    },
+    "autoload": {
+        "psr-0": { "Clue\\Redis\\Protocol": "src" }
+    }
+}
diff --git a/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Factory.php b/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Factory.php
new file mode 100644
index 0000000..3997f04
--- /dev/null
+++ b/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Factory.php
@@ -0,0 +1,51 @@
+<?php
+
+namespace Clue\Redis\Protocol;
+
+use Clue\Redis\Protocol\Parser\ParserInterface;
+use Clue\Redis\Protocol\Parser\ResponseParser;
+use Clue\Redis\Protocol\Serializer\SerializerInterface;
+use Clue\Redis\Protocol\Serializer\RecursiveSerializer;
+use Clue\Redis\Protocol\Parser\RequestParser;
+
+/**
+ * Provides factory methods used to instantiate the best available protocol implementation
+ */
+class Factory
+{
+    /**
+     * instantiate the best available protocol response parser implementation
+     *
+     * This is the parser every redis client implementation should use in order
+     * to parse incoming response messages from a redis server.
+     *
+     * @return ParserInterface
+     */
+    public function createResponseParser()
+    {
+        return new ResponseParser();
+    }
+
+    /**
+     * instantiate the best available protocol request parser implementation
+     *
+     * This is most useful for a redis server implementation which needs to
+     * process client requests.
+     *
+     * @return ParserInterface
+     */
+    public function createRequestParser()
+    {
+        return new RequestParser();
+    }
+
+    /**
+     * instantiate the best available protocol serializer implementation
+     *
+     * @return SerializerInterface
+     */
+    public function createSerializer()
+    {
+        return new RecursiveSerializer();
+    }
+}
diff --git a/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Model/BulkReply.php b/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Model/BulkReply.php
new file mode 100644
index 0000000..e069fda
--- /dev/null
+++ b/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Model/BulkReply.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace Clue\Redis\Protocol\Model;
+
+use Clue\Redis\Protocol\Model\ModelInterface;
+use Clue\Redis\Protocol\Serializer\SerializerInterface;
+
+class BulkReply implements ModelInterface
+{
+    private $value;
+
+    /**
+     * create bulk reply (string reply)
+     *
+     * @param string|null $data
+     */
+    public function __construct($value)
+    {
+        if ($value !== null) {
+            $value = (string)$value;
+        }
+        $this->value = $value;
+    }
+
+    public function getValueNative()
+    {
+        return $this->value;
+    }
+
+    public function getMessageSerialized(SerializerInterface $serializer)
+    {
+        return $serializer->getBulkMessage($this->value);
+    }
+}
diff --git a/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Model/ErrorReply.php b/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Model/ErrorReply.php
new file mode 100644
index 0000000..556e93b
--- /dev/null
+++ b/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Model/ErrorReply.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace Clue\Redis\Protocol\Model;
+
+use Exception;
+use Clue\Redis\Protocol\Serializer\SerializerInterface;
+
+/**
+ *
+ * @link http://redis.io/topics/protocol#status-reply
+ */
+class ErrorReply extends Exception implements ModelInterface
+{
+    /**
+     * create error status reply (single line error message)
+     *
+     * @param string|ErrorReplyException $message
+     * @return string
+     */
+    public function __construct($message, $code = 0, $previous = null)
+    {
+        parent::__construct($message, $code, $previous);
+    }
+
+    public function getValueNative()
+    {
+        return $this->getMessage();
+    }
+
+    public function getMessageSerialized(SerializerInterface $serializer)
+    {
+        return $serializer->getErrorMessage($this->getMessage());
+    }
+}
diff --git a/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Model/IntegerReply.php b/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Model/IntegerReply.php
new file mode 100644
index 0000000..ba1ff05
--- /dev/null
+++ b/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Model/IntegerReply.php
@@ -0,0 +1,31 @@
+<?php
+
+namespace Clue\Redis\Protocol\Model;
+
+use Clue\Redis\Protocol\Model\ModelInterface;
+use Clue\Redis\Protocol\Serializer\SerializerInterface;
+
+class IntegerReply implements ModelInterface
+{
+    private $value;
+
+    /**
+     * create integer reply
+     *
+     * @param int $data
+     */
+    public function __construct($value)
+    {
+        $this->value = (int)$value;
+    }
+
+    public function getValueNative()
+    {
+        return $this->value;
+    }
+
+    public function getMessageSerialized(SerializerInterface $serializer)
+    {
+        return $serializer->getIntegerMessage($this->value);
+    }
+}
diff --git a/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Model/ModelInterface.php b/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Model/ModelInterface.php
new file mode 100644
index 0000000..b97939e
--- /dev/null
+++ b/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Model/ModelInterface.php
@@ -0,0 +1,23 @@
+<?php
+
+namespace Clue\Redis\Protocol\Model;
+
+use Clue\Redis\Protocol\Serializer\SerializerInterface;
+
+interface ModelInterface
+{
+    /**
+     * Returns value of this model as a native representation for PHP
+     *
+     * @return mixed
+     */
+    public function getValueNative();
+
+    /**
+     * Returns the serialized representation of this protocol message
+     *
+     * @param SerializerInterface $serializer;
+     * @return string
+     */
+    public function getMessageSerialized(SerializerInterface $serializer);
+}
diff --git a/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Model/MultiBulkReply.php b/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Model/MultiBulkReply.php
new file mode 100644
index 0000000..7198dc6
--- /dev/null
+++ b/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Model/MultiBulkReply.php
@@ -0,0 +1,100 @@
+<?php
+
+namespace Clue\Redis\Protocol\Model;
+
+use InvalidArgumentException;
+use UnexpectedValueException;
+use Clue\Redis\Protocol\Serializer\SerializerInterface;
+
+class MultiBulkReply implements ModelInterface
+{
+    /**
+     * @var array|null
+     */
+    private $data;
+
+    /**
+     * create multi bulk reply (an array of other replies, usually bulk replies)
+     *
+     * @param array|null $data
+     * @throws InvalidArgumentException
+     */
+    public function __construct(array $data = null)
+    {
+        $this->data = $data;
+    }
+
+    public function getValueNative()
+    {
+        if ($this->data === null) {
+            return null;
+        }
+
+        $ret = array();
+        foreach ($this->data as $one) {
+            if ($one instanceof ModelInterface) {
+                $ret []= $one->getValueNative();
+            } else {
+                $ret []= $one;
+            }
+        }
+        return $ret;
+    }
+
+    public function getMessageSerialized(SerializerInterface $serializer)
+    {
+        return $serializer->getMultiBulkMessage($this->data);
+    }
+
+    /**
+     * Checks whether this model represents a valid unified request protocol message
+     *
+     * The new unified protocol was introduced in Redis 1.2, but it became the
+     * standard way for talking with the Redis server in Redis 2.0. The unified
+     * request protocol is what Redis already uses in replies in order to send
+     * list of items to clients, and is called a Multi Bulk Reply.
+     *
+     * @return boolean
+     * @link http://redis.io/topics/protocol
+     */
+    public function isRequest()
+    {
+        if (!$this->data) {
+            return false;
+        }
+
+        foreach ($this->data as $one) {
+            if (!($one instanceof BulkReply) && !is_string($one)) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    public function getRequestModel()
+    {
+        if (!$this->data) {
+            throw new UnexpectedValueException('Null-multi-bulk message can not be represented as a request, must contain string/bulk values');
+        }
+
+        $command = null;
+        $args = array();
+
+        foreach ($this->data as $one) {
+            if ($one instanceof BulkReply) {
+                $one = $one->getValueNative();
+            } elseif (!is_string($one)) {
+                throw new UnexpectedValueException('Message can not be represented as a request, must only contain string/bulk values');
+            }
+
+            if ($command === null) {
+                $command = $one;
+            } else {
+                $args []= $one;
+            }
+        }
+
+        return new Request($command, $args);
+    }
+}
diff --git a/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Model/Request.php b/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Model/Request.php
new file mode 100644
index 0000000..f5881e9
--- /dev/null
+++ b/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Model/Request.php
@@ -0,0 +1,53 @@
+<?php
+
+namespace Clue\Redis\Protocol\Model;
+
+use Clue\Redis\Protocol\Model\ModelInterface;
+use Clue\Redis\Protocol\Model\BulkReply;
+use Clue\Redis\Protocol\Model\MultiBulkReply;
+use Clue\Redis\Protocol\Serializer\SerializerInterface;
+
+class Request implements ModelInterface
+{
+    private $command;
+    private $args;
+
+    public function __construct($command, array $args = array())
+    {
+        $this->command = $command;
+        $this->args    = $args;
+    }
+
+    public function getCommand()
+    {
+        return $this->command;
+    }
+
+    public function getArgs()
+    {
+        return $this->args;
+    }
+
+    public function getReplyModel()
+    {
+        $models = array(new BulkReply($this->command));
+        foreach ($this->args as $arg) {
+            $models []= new BulkReply($arg);
+        }
+
+        return new MultiBulkReply($models);
+    }
+
+    public function getValueNative()
+    {
+        $ret = $this->args;
+        array_unshift($ret, $this->command);
+
+        return $ret;
+    }
+
+    public function getMessageSerialized(SerializerInterface $serializer)
+    {
+        return $serializer->getRequestMessage($this->command, $this->args);
+    }
+}
diff --git a/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Model/StatusReply.php b/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Model/StatusReply.php
new file mode 100644
index 0000000..4ea2fcd
--- /dev/null
+++ b/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Model/StatusReply.php
@@ -0,0 +1,34 @@
+<?php
+
+namespace Clue\Redis\Protocol\Model;
+
+use Clue\Redis\Protocol\Serializer\SerializerInterface;
+/**
+ *
+ * @link http://redis.io/topics/protocol#status-reply
+ */
+class StatusReply implements ModelInterface
+{
+    private $message;
+
+    /**
+     * create status reply (single line message)
+     *
+     * @param string|Status $message
+     * @return string
+     */
+    public function __construct($message)
+    {
+        $this->message = $message;
+    }
+
+    public function getValueNative()
+    {
+        return $this->message;
+    }
+
+    public function getMessageSerialized(SerializerInterface $serializer)
+    {
+        return $serializer->getStatusMessage($this->message);
+    }
+}
diff --git a/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Parser/MessageBuffer.php b/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Parser/MessageBuffer.php
new file mode 100644
index 0000000..c1e3001
--- /dev/null
+++ b/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Parser/MessageBuffer.php
@@ -0,0 +1,40 @@
+<?php
+
+namespace Clue\Redis\Protocol\Parser;
+
+use UnderflowException;
+
+class MessageBuffer implements ParserInterface
+{
+    private $parser;
+    private $incomingQueue = array();
+
+    public function __construct(ParserInterface $parser)
+    {
+        $this->parser = $parser;
+    }
+
+    public function popIncomingModel()
+    {
+        if (!$this->incomingQueue) {
+            throw new UnderflowException('Incoming message queue is empty');
+        }
+        return array_shift($this->incomingQueue);
+    }
+
+    public function hasIncomingModel()
+    {
+        return ($this->incomingQueue) ? true : false;
+    }
+
+    public function pushIncoming($data)
+    {
+        $ret = $this->parser->pushIncoming($data);
+
+        foreach ($ret as $one) {
+            $this->incomingQueue []= $one;
+        }
+
+        return $ret;
+    }
+}
diff --git a/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Parser/ParserException.php b/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Parser/ParserException.php
new file mode 100644
index 0000000..e57c5bc
--- /dev/null
+++ b/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Parser/ParserException.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace Clue\Redis\Protocol\Parser;
+
+use UnexpectedValueException;
+
+class ParserException extends UnexpectedValueException
+{
+
+}
diff --git a/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Parser/ParserInterface.php b/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Parser/ParserInterface.php
new file mode 100644
index 0000000..a322719
--- /dev/null
+++ b/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Parser/ParserInterface.php
@@ -0,0 +1,28 @@
+<?php
+
+namespace Clue\Redis\Protocol\Parser;
+
+use Clue\Redis\Protocol\Model\ModelInterface;
+use Clue\Redis\Protocol\Parser\ParserException;
+
+interface ParserInterface
+{
+    /**
+     * push a chunk of the redis protocol message into the buffer and parse
+     *
+     * You can push any number of bytes of a redis protocol message into the
+     * parser and it will try to parse messages from its data stream. So you can
+     * pass data directly from your socket stream and the parser will return the
+     * right amount of message model objects for you.
+     *
+     * If you pass an incomplete message, expect it to return an empty array. If
+     * your incomplete message is split to across multiple chunks, the parsed
+     * message model will be returned once the parser has sufficient data.
+     *
+     * @param string $dataChunk
+     * @return ModelInterface[] 0+ message models
+     * @throws ParserException if the message can not be parsed
+     * @see self::popIncomingModel()
+     */
+    public function pushIncoming($dataChunk);
+}
diff --git a/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Parser/RequestParser.php b/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Parser/RequestParser.php
new file mode 100644
index 0000000..a47d137
--- /dev/null
+++ b/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Parser/RequestParser.php
@@ -0,0 +1,125 @@
+<?php
+
+namespace Clue\Redis\Protocol\Parser;
+
+use Clue\Redis\Protocol\Parser\ParserException;
+use Clue\Redis\Protocol\Model\Request;
+
+class RequestParser implements ParserInterface
+{
+    const CRLF = "\r\n";
+
+    private $incomingBuffer = '';
+    private $incomingOffset = 0;
+
+    public function pushIncoming($dataChunk)
+    {
+        $this->incomingBuffer .= $dataChunk;
+
+        $parsed = array();
+
+        do {
+            $saved = $this->incomingOffset;
+            $message = $this->readRequest();
+            if ($message === null) {
+                // restore previous position for next parsing attempt
+                $this->incomingOffset = $saved;
+                break;
+            }
+
+            if ($message !== false) {
+                $parsed []= $message;
+            }
+        } while($this->incomingBuffer !== '');
+
+        if ($this->incomingOffset !== 0) {
+            $this->incomingBuffer = (string)substr($this->incomingBuffer, $this->incomingOffset);
+            $this->incomingOffset = 0;
+        }
+
+        return $parsed;
+    }
+
+    /**
+     * try to parse request from incoming buffer
+     *
+     * @throws ParserException if the incoming buffer is invalid
+     * @return Request|null
+     */
+    private function readRequest()
+    {
+        $crlf = strpos($this->incomingBuffer, "\r\n", $this->incomingOffset);
+        if ($crlf === false) {
+            return null;
+        }
+
+        // line starts with a multi-bulk header "*"
+        if (isset($this->incomingBuffer[$this->incomingOffset]) && $this->incomingBuffer[$this->incomingOffset] === '*') {
+            $line = substr($this->incomingBuffer, $this->incomingOffset + 1, $crlf - $this->incomingOffset + 1);
+            $this->incomingOffset = $crlf + 2;
+            $count = (int)$line;
+
+            if ($count <= 0) {
+                return false;
+            }
+            $command = null;
+            $args    = array();
+            for ($i = 0; $i < $count; ++$i) {
+                $sub = $this->readBulk();
+                if ($sub === null) {
+                    return null;
+                }
+                if ($command === null) {
+                    $command = $sub;
+                } else {
+                    $args []= $sub;
+                }
+            }
+            return new Request($command, $args);
+        }
+
+        // parse an old inline request instead
+        $line = substr($this->incomingBuffer, $this->incomingOffset, $crlf - $this->incomingOffset);
+        $this->incomingOffset = $crlf + 2;
+
+        $args = preg_split('/ +/', trim($line, ' '));
+        $command = array_shift($args);
+
+        if ($command === '') {
+            return false;
+        }
+
+        return new Request($command, $args);
+    }
+
+    private function readBulk()
+    {
+        $crlf = strpos($this->incomingBuffer, "\r\n", $this->incomingOffset);
+        if ($crlf === false) {
+            return null;
+        }
+
+        // line has to start with a bulk header "$"
+        if (!isset($this->incomingBuffer[$this->incomingOffset]) || $this->incomingBuffer[$this->incomingOffset] !== '$') {
+            throw new ParserException('ERR Protocol error: expected \'$\', got \'' . substr($this->incomingBuffer, $this->incomingOffset, 1) . '\'');
+        }
+
+        $line = substr($this->incomingBuffer, $this->incomingOffset + 1, $crlf - $this->incomingOffset + 1);
+        $this->incomingOffset = $crlf + 2;
+        $size = (int)$line;
+
+        if ($size < 0) {
+            throw new ParserException('ERR Protocol error: invalid bulk length');
+        }
+
+        if (!isset($this->incomingBuffer[$this->incomingOffset + $size + 1])) {
+            // check enough bytes + crlf are buffered
+            return null;
+        }
+
+        $ret = substr($this->incomingBuffer, $this->incomingOffset, $size);
+        $this->incomingOffset += $size + 2;
+
+        return $ret;
+    }
+}
diff --git a/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Parser/ResponseParser.php b/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Parser/ResponseParser.php
new file mode 100644
index 0000000..19ac90c
--- /dev/null
+++ b/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Parser/ResponseParser.php
@@ -0,0 +1,151 @@
+<?php
+
+namespace Clue\Redis\Protocol\Parser;
+
+use Clue\Redis\Protocol\Parser\ParserInterface;
+use Clue\Redis\Protocol\Model\ModelInterface;
+use Clue\Redis\Protocol\Model\BulkReply;
+use Clue\Redis\Protocol\Model\ErrorReply;
+use Clue\Redis\Protocol\Model\IntegerReply;
+use Clue\Redis\Protocol\Model\MultiBulkReply;
+use Clue\Redis\Protocol\Model\StatusReply;
+use Clue\Redis\Protocol\Parser\ParserException;
+
+/**
+ * Simple recursive redis wire protocol parser
+ *
+ * Heavily influenced by blocking parser implementation from jpd/redisent.
+ *
+ * @link https://github.com/jdp/redisent
+ * @link http://redis.io/topics/protocol
+ */
+class ResponseParser implements ParserInterface
+{
+    const CRLF = "\r\n";
+
+    private $incomingBuffer = '';
+    private $incomingOffset = 0;
+
+    public function pushIncoming($dataChunk)
+    {
+        $this->incomingBuffer .= $dataChunk;
+
+        return $this->tryParsingIncomingMessages();
+    }
+
+    private function tryParsingIncomingMessages()
+    {
+        $messages = array();
+
+        do {
+            $message = $this->readResponse();
+            if ($message === null) {
+                // restore previous position for next parsing attempt
+                $this->incomingOffset = 0;
+                break;
+            }
+
+            $messages []= $message;
+
+            $this->incomingBuffer = (string)substr($this->incomingBuffer, $this->incomingOffset);
+            $this->incomingOffset = 0;
+        } while($this->incomingBuffer !== '');
+
+        return $messages;
+    }
+
+    private function readLine()
+    {
+        $pos = strpos($this->incomingBuffer, "\r\n", $this->incomingOffset);
+
+        if ($pos === false) {
+            return null;
+        }
+
+        $ret = (string)substr($this->incomingBuffer, $this->incomingOffset, $pos - $this->incomingOffset);
+        $this->incomingOffset = $pos + 2;
+
+        return $ret;
+    }
+
+    private function readLength($len)
+    {
+        $ret = substr($this->incomingBuffer, $this->incomingOffset, $len);
+        if (strlen($ret) !== $len) {
+            return null;
+        }
+
+        $this->incomingOffset += $len;
+
+        return $ret;
+    }
+
+    /**
+     * try to parse response from incoming buffer
+     *
+     * ripped from jdp/redisent, with some minor modifications to read from
+     * the incoming buffer instead of issuing a blocking fread on a stream
+     *
+     * @throws ParserException if the incoming buffer is invalid
+     * @return ModelInterface|null
+     * @link https://github.com/jdp/redisent
+     */
+    private function readResponse()
+    {
+        /* Parse the response based on the reply identifier */
+        $reply = $this->readLine();
+        if ($reply === null) {
+            return null;
+        }
+        switch (substr($reply, 0, 1)) {
+            /* Error reply */
+            case '-':
+                $response = new ErrorReply(substr($reply, 1));
+                break;
+                /* Inline reply */
+            case '+':
+                $response = new StatusReply(substr($reply, 1));
+                break;
+                /* Bulk reply */
+            case '$':
+                $size = (int)substr($reply, 1);
+                if ($size === -1) {
+                    return new BulkReply(null);
+                }
+                $data = $this->readLength($size);
+                if ($data === null) {
+                    return null;
+                }
+                if ($this->readLength(2) === null) { /* discard crlf */
+                    return null;
+                }
+                $response = new BulkReply($data);
+                break;
+                /* Multi-bulk reply */
+            case '*':
+                $count = (int)substr($reply, 1);
+                if ($count === -1) {
+                    return new MultiBulkReply(null);
+                }
+                $response = array();
+                for ($i = 0; $i < $count; $i++) {
+                    $sub = $this->readResponse();
+                    if ($sub === null) {
+                        return null;
+                    }
+                    $response []= $sub;
+                }
+                $response = new MultiBulkReply($response);
+                break;
+                /* Integer reply */
+            case ':':
+                $response = new IntegerReply(substr($reply, 1));
+                break;
+            default:
+                throw new ParserException('Invalid message can not be parsed: "' . $reply . '"');
+                break;
+        }
+        /* Party on */
+        return $response;
+    }
+}
diff --git a/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Serializer/RecursiveSerializer.php b/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Serializer/RecursiveSerializer.php
new file mode 100644
index 0000000..6e25125
--- /dev/null
+++ b/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Serializer/RecursiveSerializer.php
@@ -0,0 +1,111 @@
+<?php
+
+namespace Clue\Redis\Protocol\Serializer;
+
+use Clue\Redis\Protocol\Model\StatusReply;
+use InvalidArgumentException;
+use Exception;
+use Clue\Redis\Protocol\Model\BulkReply;
+use Clue\Redis\Protocol\Model\IntegerReply;
+use Clue\Redis\Protocol\Model\ErrorReply;
+use Clue\Redis\Protocol\Model\MultiBulkReply;
+use Clue\Redis\Protocol\Model\ModelInterface;
+use Clue\Redis\Protocol\Model\Request;
+
+class RecursiveSerializer implements SerializerInterface
+{
+    const CRLF = "\r\n";
+
+    public function getRequestMessage($command, array $args = array())
+    {
+        $data = '*' . (count($args) + 1) . "\r\n$" . strlen($command) . "\r\n" . $command . "\r\n";
+        foreach ($args as $arg) {
+            $data .= '$' . strlen($arg) . "\r\n" . $arg . "\r\n";
+        }
+        return $data;
+    }
+
+    public function createRequestModel($command, array $args = array())
+    {
+        return new Request($command, $args);
+    }
+
+    public function getReplyMessage($data)
+    {
+        if (is_string($data) || $data === null) {
+            return $this->getBulkMessage($data);
+        } else if (is_int($data) || is_float($data) || is_bool($data)) {
+            return $this->getIntegerMessage($data);
+        } else if ($data instanceof Exception) {
+            return $this->getErrorMessage($data->getMessage());
+        } else if (is_array($data)) {
+            return $this->getMultiBulkMessage($data);
+        } else {
+            throw new InvalidArgumentException('Invalid data type passed for serialization');
+        }
+    }
+
+    public function createReplyModel($data)
+    {
+        if (is_string($data) || $data === null) {
+            return new BulkReply($data);
+        } else if (is_int($data) || is_float($data) || is_bool($data)) {
+            return new IntegerReply($data);
+        } else if ($data instanceof Exception) {
+            return new ErrorReply($data->getMessage());
+        } else if (is_array($data)) {
+            $models = array();
+            foreach ($data as $one) {
+                $models []= $this->createReplyModel($one);
+            }
+            return new MultiBulkReply($models);
+        } else {
+            throw new InvalidArgumentException('Invalid data type passed for serialization');
+        }
+    }
+
+    public function getBulkMessage($data)
+    {
+        if ($data === null) {
+            /* null bulk reply */
+            return '$-1' . self::CRLF;
+        }
+        /* bulk reply */
+        return '$' . strlen($data) . self::CRLF . $data . self::CRLF;
+    }
+
+    public function getErrorMessage($data)
+    {
+        /* error status reply */
+        return '-' . $data . self::CRLF;
+    }
+
+    public function getIntegerMessage($data)
+    {
+        return ':' . (int)$data . self::CRLF;
+    }
+
+    public function getMultiBulkMessage($data)
+    {
+        if ($data === null) {
+            /* null multi bulk reply */
+            return '*-1' . self::CRLF;
+        }
+        /* multi bulk reply */
+        $ret = '*' . count($data) . self::CRLF;
+        foreach ($data as $one) {
+            if ($one instanceof ModelInterface) {
+                $ret .= $one->getMessageSerialized($this);
+            } else {
+                $ret .= $this->getReplyMessage($one);
+            }
+        }
+        return $ret;
+    }
+
+    public function getStatusMessage($data)
+    {
+        /* status reply */
+        return '+' . $data . self::CRLF;
+    }
+}
diff --git a/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Serializer/SerializerInterface.php b/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Serializer/SerializerInterface.php
new file mode 100644
index 0000000..bb7cb3e
--- /dev/null
+++ b/vendor/clue/redis-protocol/src/Clue/Redis/Protocol/Serializer/SerializerInterface.php
@@ -0,0 +1,83 @@
+<?php
+
+namespace Clue\Redis\Protocol\Serializer;
+
+use Clue\Redis\Protocol\Model\ErrorReplyException;
+use Clue\Redis\Protocol\Model\ModelInterface;
+use Clue\Redis\Protocol\Model\MultiBulkReply;
+
+interface SerializerInterface
+{
+    /**
+     * create a serialized unified request protocol message
+     *
+     * This is the *one* method most redis client libraries will likely want to
+     * use in order to send a serialized message (a request) over the* wire to
+     * your redis server instance.
+     *
+     * This method should be used in favor of constructing a request model and
+     * then serializing it. While its effect might be equivalent, this method
+     * is likely to (i.e. it /could/) provide a faster implementation.
+     *
+     * @param string $command
+     * @param array $args
+     * @return string
+     * @see self::createRequestMessage()
+     */
+    public function getRequestMessage($command, array $args = array());
+
+    /**
+     * create a unified request protocol message model
+     *
+     * @param string $command
+     * @param array $args
+     * @return MultiBulkReply
+     */
+    public function createRequestModel($command, array $args = array());
+
+    /**
+     * create a serialized unified protocol reply message
+     *
+     * This is most useful for a redis server implementation which needs to
+     * process client requests and send resulting reply messages.
+     *
+     * This method does its best to guess to right reply type and then returns
+     * a serialized version of the message. It follows the "redis to lua
+     * conversion table" (see link) which means most basic types can be mapped
+     * as is.
+     *
+     * This method should be used in favor of constructing a reply model and
+     * then serializing it. While its effect might be equivalent, this method
+     * is likely to (i.e. it /could/) provide a faster implementation.
+     *
+     * Note however, you may still want to explicitly create a nested reply
+     * model hierarchy if you need more control over the serialized message. For
+     * instance, a null value will always be returned as a Null-Bulk-Reply, so
+     * there's no way to express a Null-Multi-Bulk-Reply, unless you construct
+     * it explicitly.
+     *
+     * @param mixed $data
+     * @return string
+     * @see self::createReplyModel()
+     * @link http://redis.io/commands/eval
+     */
+    public function getReplyMessage($data);
+
+    /**
+     * create response message by determining datatype from given argument
+     *
+     * @param mixed $data
+     * @return ModelInterface
+     */
+    public function createReplyModel($data);
+
+    public function getBulkMessage($data);
+
+    public function getErrorMessage($data);
+
+    public function getIntegerMessage($data);
+
+    public function getMultiBulkMessage($data);
+
+    public function getStatusMessage($data);
+}
diff --git a/vendor/clue/redis-react/LICENSE b/vendor/clue/redis-react/LICENSE
new file mode 100644
index 0000000..da15612
--- /dev/null
+++ b/vendor/clue/redis-react/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2013 Christian Lück
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/vendor/clue/redis-react/composer.json b/vendor/clue/redis-react/composer.json
new file mode 100644
index 0000000..c1752cc
--- /dev/null
+++ b/vendor/clue/redis-react/composer.json
@@ -0,0 +1,32 @@
+{
+    "name": "clue/redis-react",
+    "description": "Async Redis client implementation, built on top of ReactPHP.",
+    "keywords": ["Redis", "database", "client", "async", "ReactPHP"],
+    "homepage": "https://github.com/clue/reactphp-redis",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Christian Lück",
+            "email": "christian@clue.engineering"
+        }
+    ],
+    "require": {
+        "php": ">=5.3",
+        "clue/redis-protocol": "0.3.*",
+        "evenement/evenement": "^3.0 || ^2.0 || ^1.0",
+        "react/event-loop": "^1.2",
+        "react/promise": "^2.0 || ^1.1",
+        "react/promise-timer": "^1.8",
+        "react/socket": "^1.9"
+    },
+    "require-dev": {
+        "clue/block-react": "^1.1",
+        "phpunit/phpunit": "^9.3 || ^5.7 || ^4.8.35"
+    },
+    "autoload": {
+        "psr-4": { "Clue\\React\\Redis\\": "src/" }
+    },
+    "autoload-dev": {
+        "psr-4": { "Clue\\Tests\\React\\Redis\\": "tests/" }
+    }
+}
diff --git a/vendor/clue/redis-react/src/Client.php b/vendor/clue/redis-react/src/Client.php
new file mode 100644
index 0000000..ec54229
--- /dev/null
+++ b/vendor/clue/redis-react/src/Client.php
@@ -0,0 +1,54 @@
+<?php
+
+namespace Clue\React\Redis;
+
+use Evenement\EventEmitterInterface;
+use React\Promise\PromiseInterface;
+
+/**
+ * Simple interface for executing redis commands
+ *
+ * @event error(Exception $error)
+ * @event close()
+ *
+ * @event message($channel, $message)
+ * @event subscribe($channel, $numberOfChannels)
+ * @event unsubscribe($channel, $numberOfChannels)
+ *
+ * @event pmessage($pattern, $channel, $message)
+ * @event psubscribe($channel, $numberOfChannels)
+ * @event punsubscribe($channel, $numberOfChannels)
+ */
+interface Client extends EventEmitterInterface
+{
+    /**
+     * Invoke the given command and return a Promise that will be fulfilled when the request has been replied to
+     *
+     * This is a magic method that will be invoked when calling any redis
+     * command on this instance.
+     *
+     * @param string   $name
+     * @param string[] $args
+     * @return PromiseInterface Promise<mixed,Exception>
+     */
+    public function __call($name, $args);
+
+    /**
+     * end connection once all pending requests have been replied to
+     *
+     * @return void
+     * @uses self::close() once all replies have been received
+     * @see self::close() for closing the connection immediately
+     */
+    public function end();
+
+    /**
+     * close connection immediately
+     *
+     * This will emit the "close" event.
+     *
+     * @return void
+     * @see self::end() for closing the connection once the client is idle
+     */
+    public function close();
+}
diff --git a/vendor/clue/redis-react/src/Factory.php b/vendor/clue/redis-react/src/Factory.php
new file mode 100644
index 0000000..4e94905
--- /dev/null
+++ b/vendor/clue/redis-react/src/Factory.php
@@ -0,0 +1,191 @@
+<?php
+
+namespace Clue\React\Redis;
+
+use Clue\Redis\Protocol\Factory as ProtocolFactory;
+use React\EventLoop\Loop;
+use React\EventLoop\LoopInterface;
+use React\Promise\Deferred;
+use React\Promise\Timer\TimeoutException;
+use React\Socket\ConnectionInterface;
+use React\Socket\Connector;
+use React\Socket\ConnectorInterface;
+
+class Factory
+{
+    /** @var LoopInterface */
+    private $loop;
+
+    /** @var ConnectorInterface */
+    private $connector;
+
+    /** @var ProtocolFactory */
+    private $protocol;
+
+    /**
+     * @param ?LoopInterface $loop
+     * @param ?ConnectorInterface $connector
+     * @param ?ProtocolFactory $protocol
+     */
+    public function __construct(LoopInterface $loop = null, ConnectorInterface $connector = null, ProtocolFactory $protocol = null)
+    {
+        $this->loop = $loop ?: Loop::get();
+        $this->connector = $connector ?: new Connector(array(), $this->loop);
+        $this->protocol = $protocol ?: new ProtocolFactory();
+    }
+
+    /**
+     * Create Redis client connected to address of given redis instance
+     *
+     * @param string $uri Redis server URI to connect to
+     * @return \React\Promise\PromiseInterface<Client,\Exception> Promise that will
+     *     be fulfilled with `Client` on success or rejects with `\Exception` on error.
+     */
+    public function createClient($uri)
+    {
+        // support `redis+unix://` scheme for Unix domain socket (UDS) paths
+        if (preg_match('/^(redis\+unix:\/\/(?:[^:]*:[^@]*@)?)(.+?)?$/', $uri, $match)) {
+            $parts = parse_url($match[1] . 'localhost/' . $match[2]);
+        } else {
+            if (strpos($uri, '://') === false) {
+                $uri = 'redis://' . $uri;
+            }
+
+            $parts = parse_url($uri);
+        }
+
+        $uri = preg_replace(array('/(:)[^:\/]*(@)/', '/([?&]password=).*?($|&)/'), '$1***$2', $uri);
+        if ($parts === false || !isset($parts['scheme'], $parts['host']) || !in_array($parts['scheme'], array('redis', 'rediss', 'redis+unix'))) {
+            return \React\Promise\reject(new \InvalidArgumentException(
+                'Invalid Redis URI given (EINVAL)',
+                defined('SOCKET_EINVAL') ? SOCKET_EINVAL : 22
+            ));
+        }
+
+        $args = array();
+        parse_str(isset($parts['query']) ? $parts['query'] : '', $args);
+
+        $authority = $parts['host'] . ':' . (isset($parts['port']) ? $parts['port'] : 6379);
+        if ($parts['scheme'] === 'rediss') {
+            $authority = 'tls://' . $authority;
+        } elseif ($parts['scheme'] === 'redis+unix') {
+            $authority = 'unix://' . substr($parts['path'], 1);
+            unset($parts['path']);
+        }
+        $connecting = $this->connector->connect($authority);
+
+        $deferred = new Deferred(function ($_, $reject) use ($connecting, $uri) {
+            // connection cancelled, start with rejecting attempt, then clean up
+            $reject(new \RuntimeException(
+                'Connection to ' . $uri . ' cancelled (ECONNABORTED)',
+                defined('SOCKET_ECONNABORTED') ? SOCKET_ECONNABORTED : 103
+            ));
+
+            // either close successful connection or cancel pending connection attempt
+            $connecting->then(function (ConnectionInterface $connection) {
+                $connection->close();
+            });
+            $connecting->cancel();
+        });
+
+        $protocol = $this->protocol;
+        $promise = $connecting->then(function (ConnectionInterface $stream) use ($protocol) {
+            return new StreamingClient($stream, $protocol->createResponseParser(), $protocol->createSerializer());
+        }, function (\Exception $e) use ($uri) {
+            throw new \RuntimeException(
+                'Connection to ' . $uri . ' failed: ' . $e->getMessage(),
+                $e->getCode(),
+                $e
+            );
+        });
+
+        // use `?password=secret` query or `user:secret@host` password form URL
+        $pass = isset($args['password']) ? $args['password'] : (isset($parts['pass']) ? rawurldecode($parts['pass']) : null);
+        if (isset($args['password']) || isset($parts['pass'])) {
+            $pass = isset($args['password']) ? $args['password'] : rawurldecode($parts['pass']);
+            $promise = $promise->then(function (StreamingClient $redis) use ($pass, $uri) {
+                return $redis->auth($pass)->then(
+                    function () use ($redis) {
+                        return $redis;
+                    },
+                    function (\Exception $e) use ($redis, $uri) {
+                        $redis->close();
+
+                        $const = '';
+                        $errno = $e->getCode();
+                        if ($errno === 0) {
+                            $const = ' (EACCES)';
+                            $errno = $e->getCode() ?: (defined('SOCKET_EACCES') ? SOCKET_EACCES : 13);
+                        }
+
+                        throw new \RuntimeException(
+                            'Connection to ' . $uri . ' failed during AUTH command: ' . $e->getMessage() . $const,
+                            $errno,
+                            $e
+                        );
+                    }
+                );
+            });
+        }
+
+        // use `?db=1` query or `/1` path (skip first slash)
+        if (isset($args['db']) || (isset($parts['path']) && $parts['path'] !== '/')) {
+            $db = isset($args['db']) ? $args['db'] : substr($parts['path'], 1);
+            $promise = $promise->then(function (StreamingClient $redis) use ($db, $uri) {
+                return $redis->select($db)->then(
+                    function () use ($redis) {
+                        return $redis;
+                    },
+                    function (\Exception $e) use ($redis, $uri) {
+                        $redis->close();
+
+                        $const = '';
+                        $errno = $e->getCode();
+                        if ($errno === 0 && strpos($e->getMessage(), 'NOAUTH ') === 0) {
+                            $const = ' (EACCES)';
+                            $errno = defined('SOCKET_EACCES') ? SOCKET_EACCES : 13;
+                        } elseif ($errno === 0) {
+                            $const = ' (ENOENT)';
+                            $errno = defined('SOCKET_ENOENT') ? SOCKET_ENOENT : 2;
+                        }
+
+                        throw new \RuntimeException(
+                            'Connection to ' . $uri . ' failed during SELECT command: ' . $e->getMessage() . $const,
+                            $errno,
+                            $e
+                        );
+                    }
+                );
+            });
+        }
+
+        $promise->then(array($deferred, 'resolve'), array($deferred, 'reject'));
+
+        // use timeout from explicit ?timeout=x parameter or default to PHP's default_socket_timeout (60)
+        $timeout = isset($args['timeout']) ? (float) $args['timeout'] : (int) ini_get("default_socket_timeout");
+        if ($timeout < 0) {
+            return $deferred->promise();
+        }
+
+        return \React\Promise\Timer\timeout($deferred->promise(), $timeout, $this->loop)->then(null, function ($e) use ($uri) {
+            if ($e instanceof TimeoutException) {
+                throw new \RuntimeException(
+                    'Connection to ' . $uri . ' timed out after ' . $e->getTimeout() . ' seconds (ETIMEDOUT)',
+                    defined('SOCKET_ETIMEDOUT') ? SOCKET_ETIMEDOUT : 110
+                );
+            }
+            throw $e;
+        });
+    }
+
+    /**
+     * Create Redis client connected to address of given redis instance
+     *
+     * @param string $target
+     * @return Client
+     */
+    public function createLazyClient($target)
+    {
+        return new LazyClient($target, $this, $this->loop);
+    }
+}
diff --git a/vendor/clue/redis-react/src/LazyClient.php b/vendor/clue/redis-react/src/LazyClient.php
new file mode 100644
index 0000000..d82b257
--- /dev/null
+++ b/vendor/clue/redis-react/src/LazyClient.php
@@ -0,0 +1,219 @@
+<?php
+
+namespace Clue\React\Redis;
+
+use Evenement\EventEmitter;
+use React\Stream\Util;
+use React\EventLoop\LoopInterface;
+
+/**
+ * @internal
+ */
+class LazyClient extends EventEmitter implements Client
+{
+    private $target;
+    /** @var Factory */
+    private $factory;
+    private $closed = false;
+    private $promise;
+
+    private $loop;
+    private $idlePeriod = 60.0;
+    private $idleTimer;
+    private $pending = 0;
+
+    private $subscribed = array();
+    private $psubscribed = array();
+
+    /**
+     * @param $target
+     */
+    public function __construct($target, Factory $factory, LoopInterface $loop)
+    {
+        $args = array();
+        \parse_str((string) \parse_url($target, \PHP_URL_QUERY), $args);
+        if (isset($args['idle'])) {
+            $this->idlePeriod = (float)$args['idle'];
+        }
+
+        $this->target = $target;
+        $this->factory = $factory;
+        $this->loop = $loop;
+    }
+
+    private function client()
+    {
+        if ($this->promise !== null) {
+            return $this->promise;
+        }
+
+        $self = $this;
+        $pending =& $this->promise;
+        $idleTimer=& $this->idleTimer;
+        $subscribed =& $this->subscribed;
+        $psubscribed =& $this->psubscribed;
+        $loop = $this->loop;
+        return $pending = $this->factory->createClient($this->target)->then(function (Client $redis) use ($self, &$pending, &$idleTimer, &$subscribed, &$psubscribed, $loop) {
+            // connection completed => remember only until closed
+            $redis->on('close', function () use (&$pending, $self, &$subscribed, &$psubscribed, &$idleTimer, $loop) {
+                $pending = null;
+
+                // foward unsubscribe/punsubscribe events when underlying connection closes
+                $n = count($subscribed);
+                foreach ($subscribed as $channel => $_) {
+                    $self->emit('unsubscribe', array($channel, --$n));
+                }
+                $n = count($psubscribed);
+                foreach ($psubscribed as $pattern => $_) {
+                    $self->emit('punsubscribe', array($pattern, --$n));
+                }
+                $subscribed = array();
+                $psubscribed = array();
+
+                if ($idleTimer !== null) {
+                    $loop->cancelTimer($idleTimer);
+                    $idleTimer = null;
+                }
+            });
+
+            // keep track of all channels and patterns this connection is subscribed to
+            $redis->on('subscribe', function ($channel) use (&$subscribed) {
+                $subscribed[$channel] = true;
+            });
+            $redis->on('psubscribe', function ($pattern) use (&$psubscribed) {
+                $psubscribed[$pattern] = true;
+            });
+            $redis->on('unsubscribe', function ($channel) use (&$subscribed) {
+                unset($subscribed[$channel]);
+            });
+            $redis->on('punsubscribe', function ($pattern) use (&$psubscribed) {
+                unset($psubscribed[$pattern]);
+            });
+
+            Util::forwardEvents(
+                $redis,
+                $self,
+                array(
+                    'message',
+                    'subscribe',
+                    'unsubscribe',
+                    'pmessage',
+                    'psubscribe',
+                    'punsubscribe',
+                )
+            );
+
+            return $redis;
+        }, function (\Exception $e) use (&$pending) {
+            // connection failed => discard connection attempt
+            $pending = null;
+
+            throw $e;
+        });
+    }
+
+    public function __call($name, $args)
+    {
+        if ($this->closed) {
+            return \React\Promise\reject(new \RuntimeException(
+                'Connection closed (ENOTCONN)',
+                defined('SOCKET_ENOTCONN') ? SOCKET_ENOTCONN : 107
+            ));
+        }
+
+        $that = $this;
+        return $this->client()->then(function (Client $redis) use ($name, $args, $that) {
+            $that->awake();
+            return \call_user_func_array(array($redis, $name), $args)->then(
+                function ($result) use ($that) {
+                    $that->idle();
+                    return $result;
+                },
+                function ($error) use ($that) {
+                    $that->idle();
+                    throw $error;
+                }
+            );
+        });
+    }
+
+    public function end()
+    {
+        if ($this->promise === null) {
+            $this->close();
+        }
+
+        if ($this->closed) {
+            return;
+        }
+
+        $that = $this;
+        return $this->client()->then(function (Client $redis) use ($that) {
+            $redis->on('close', function () use ($that) {
+                $that->close();
+            });
+            $redis->end();
+        });
+    }
+
+    public function close()
+    {
+        if ($this->closed) {
+            return;
+        }
+
+        $this->closed = true;
+
+        // either close active connection or cancel pending connection attempt
+        if ($this->promise !== null) {
+            $this->promise->then(function (Client $redis) {
+                $redis->close();
+            });
+            if ($this->promise !== null) {
+                $this->promise->cancel();
+                $this->promise = null;
+            }
+        }
+
+        if ($this->idleTimer !== null) {
+            $this->loop->cancelTimer($this->idleTimer);
+            $this->idleTimer = null;
+        }
+
+        $this->emit('close');
+        $this->removeAllListeners();
+    }
+
+    /**
+     * @internal
+     */
+    public function awake()
+    {
+        ++$this->pending;
+
+        if ($this->idleTimer !== null) {
+            $this->loop->cancelTimer($this->idleTimer);
+            $this->idleTimer = null;
+        }
+    }
+
+    /**
+     * @internal
+     */
+    public function idle()
+    {
+        --$this->pending;
+
+        if ($this->pending < 1 && $this->idlePeriod >= 0 && !$this->subscribed && !$this->psubscribed && $this->promise !== null) {
+            $idleTimer =& $this->idleTimer;
+            $promise =& $this->promise;
+            $idleTimer = $this->loop->addTimer($this->idlePeriod, function () use (&$idleTimer, &$promise) {
+                $promise->then(function (Client $redis) {
+                    $redis->close();
+                });
+                $promise = null;
+                $idleTimer = null;
+            });
+        }
+    }
+}
diff --git a/vendor/clue/redis-react/src/StreamingClient.php b/vendor/clue/redis-react/src/StreamingClient.php
new file mode 100644
index 0000000..8afd84d
--- /dev/null
+++ b/vendor/clue/redis-react/src/StreamingClient.php
@@ -0,0 +1,203 @@
+<?php
+
+namespace Clue\React\Redis;
+
+use Clue\Redis\Protocol\Factory as ProtocolFactory;
+use Clue\Redis\Protocol\Model\ErrorReply;
+use Clue\Redis\Protocol\Model\ModelInterface;
+use Clue\Redis\Protocol\Model\MultiBulkReply;
+use Clue\Redis\Protocol\Parser\ParserException;
+use Clue\Redis\Protocol\Parser\ParserInterface;
+use Clue\Redis\Protocol\Serializer\SerializerInterface;
+use Evenement\EventEmitter;
+use React\Promise\Deferred;
+use React\Stream\DuplexStreamInterface;
+
+/**
+ * @internal
+ */
+class StreamingClient extends EventEmitter implements Client
+{
+    private $stream;
+    private $parser;
+    private $serializer;
+    private $requests = array();
+    private $ending = false;
+    private $closed = false;
+
+    private $subscribed = 0;
+    private $psubscribed = 0;
+
+    public function __construct(DuplexStreamInterface $stream, ParserInterface $parser = null, SerializerInterface $serializer = null)
+    {
+        if ($parser === null || $serializer === null) {
+            $factory = new ProtocolFactory();
+            if ($parser === null) {
+                $parser = $factory->createResponseParser();
+            }
+            if ($serializer === null) {
+                $serializer = $factory->createSerializer();
+            }
+        }
+
+        $that = $this;
+        $stream->on('data', function($chunk) use ($parser, $that) {
+            try {
+                $models = $parser->pushIncoming($chunk);
+            } catch (ParserException $error) {
+                $that->emit('error', array(new \UnexpectedValueException(
+                    'Invalid data received: ' . $error->getMessage() . ' (EBADMSG)',
+                    defined('SOCKET_EBADMSG') ? SOCKET_EBADMSG : 77,
+                    $error
+                )));
+                $that->close();
+                return;
+            }
+
+            foreach ($models as $data) {
+                try {
+                    $that->handleMessage($data);
+                } catch (\UnderflowException $error) {
+                    $that->emit('error', array($error));
+                    $that->close();
+                    return;
+                }
+            }
+        });
+
+        $stream->on('close', array($this, 'close'));
+
+        $this->stream = $stream;
+        $this->parser = $parser;
+        $this->serializer = $serializer;
+    }
+
+    public function __call($name, $args)
+    {
+        $request = new Deferred();
+        $promise = $request->promise();
+
+        $name = strtolower($name);
+
+        // special (p)(un)subscribe commands only accept a single parameter and have custom response logic applied
+        static $pubsubs = array('subscribe', 'unsubscribe', 'psubscribe', 'punsubscribe');
+
+        if ($this->ending) {
+            $request->reject(new \RuntimeException(
+                'Connection ' . ($this->closed ? 'closed' : 'closing'). ' (ENOTCONN)',
+                defined('SOCKET_ENOTCONN') ? SOCKET_ENOTCONN : 107
+            ));
+        } elseif (count($args) !== 1 && in_array($name, $pubsubs)) {
+            $request->reject(new \InvalidArgumentException(
+                'PubSub commands limited to single argument (EINVAL)',
+                defined('SOCKET_EINVAL') ? SOCKET_EINVAL : 22
+            ));
+        } elseif ($name === 'monitor') {
+            $request->reject(new \BadMethodCallException(
+                'MONITOR command explicitly not supported (ENOTSUP)',
+                defined('SOCKET_ENOTSUP') ? SOCKET_ENOTSUP : (defined('SOCKET_EOPNOTSUPP') ? SOCKET_EOPNOTSUPP : 95)
+            ));
+        } else {
+            $this->stream->write($this->serializer->getRequestMessage($name, $args));
+            $this->requests []= $request;
+        }
+
+        if (in_array($name, $pubsubs)) {
+            $that = $this;
+            $subscribed =& $this->subscribed;
+            $psubscribed =& $this->psubscribed;
+
+            $promise->then(function ($array) use ($that, &$subscribed, &$psubscribed) {
+                $first = array_shift($array);
+
+                // (p)(un)subscribe messages are to be forwarded
+                $that->emit($first, $array);
+
+                // remember number of (p)subscribe topics
+                if ($first === 'subscribe' || $first === 'unsubscribe') {
+                    $subscribed = $array[1];
+                } else {
+                    $psubscribed = $array[1];
+                }
+            });
+        }
+
+        return $promise;
+    }
+
+    public function handleMessage(ModelInterface $message)
+    {
+        if (($this->subscribed !== 0 || $this->psubscribed !== 0) && $message instanceof MultiBulkReply) {
+            $array = $message->getValueNative();
+            $first = array_shift($array);
+
+            // pub/sub messages are to be forwarded and should not be processed as request responses
+            if (in_array($first, array('message', 'pmessage'))) {
+                $this->emit($first, $array);
+                return;
+            }
+        }
+
+        if (!$this->requests) {
+            throw new \UnderflowException(
+                'Unexpected reply received, no matching request found (ENOMSG)',
+                defined('SOCKET_ENOMSG') ? SOCKET_ENOMSG : 42
+            );
+        }
+
+        $request = array_shift($this->requests);
+        assert($request instanceof Deferred);
+
+        if ($message instanceof ErrorReply) {
+            $request->reject($message);
+        } else {
+            $request->resolve($message->getValueNative());
+        }
+
+        if ($this->ending && !$this->requests) {
+            $this->close();
+        }
+    }
+
+    public function end()
+    {
+        $this->ending = true;
+
+        if (!$this->requests) {
+            $this->close();
+        }
+    }
+
+    public function close()
+    {
+        if ($this->closed) {
+            return;
+        }
+
+        $this->ending = true;
+        $this->closed = true;
+
+        $remoteClosed = $this->stream->isReadable() === false && $this->stream->isWritable() === false;
+        $this->stream->close();
+
+        $this->emit('close');
+
+        // reject all remaining requests in the queue
+        while ($this->requests) {
+            $request = array_shift($this->requests);
+            assert($request instanceof Deferred);
+
+            if ($remoteClosed) {
+                $request->reject(new \RuntimeException(
+                    'Connection closed by peer (ECONNRESET)',
+                    defined('SOCKET_ECONNRESET') ? SOCKET_ECONNRESET : 104
+                ));
+            } else {
+                $request->reject(new \RuntimeException(
+                    'Connection closing (ECONNABORTED)',
+                    defined('SOCKET_ECONNABORTED') ? SOCKET_ECONNABORTED : 103
+                ));
+            }
+        }
+    }
+}
diff --git a/vendor/clue/soap-react/LICENSE b/vendor/clue/soap-react/LICENSE
new file mode 100644
index 0000000..9426ad3
--- /dev/null
+++ b/vendor/clue/soap-react/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2014 Christian Lück
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/vendor/clue/soap-react/composer.json b/vendor/clue/soap-react/composer.json
new file mode 100644
index 0000000..3b7fc4a
--- /dev/null
+++ b/vendor/clue/soap-react/composer.json
@@ -0,0 +1,27 @@
+{
+    "name": "clue/soap-react",
+    "description": "Simple, async SOAP webservice client library, built on top of ReactPHP",
+    "keywords": ["SOAP", "SoapClient", "WebService", "WSDL", "ReactPHP"],
+    "homepage": "https://github.com/clue/reactphp-soap",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Christian Lück",
+            "email": "christian@lueck.tv"
+        }
+    ],
+    "autoload": {
+        "psr-4": { "Clue\\React\\Soap\\": "src/" }
+    },
+    "require": {
+        "php": ">=5.3",
+        "clue/buzz-react": "^2.5",
+        "react/event-loop": "^1.0 || ^0.5 || ^0.4 || ^0.3",
+        "react/promise": "^2.1 || ^1.2",
+        "ext-soap": "*"
+    },
+    "require-dev": {
+        "clue/block-react": "^1.0",
+        "phpunit/phpunit": "^6.4 || ^5.7 || ^4.8.35"
+    }
+}
diff --git a/vendor/clue/soap-react/src/Client.php b/vendor/clue/soap-react/src/Client.php
new file mode 100644
index 0000000..85ee7af
--- /dev/null
+++ b/vendor/clue/soap-react/src/Client.php
@@ -0,0 +1,323 @@
+<?php
+
+namespace Clue\React\Soap;
+
+use Clue\React\Buzz\Browser;
+use Clue\React\Soap\Protocol\ClientDecoder;
+use Clue\React\Soap\Protocol\ClientEncoder;
+use Psr\Http\Message\ResponseInterface;
+use React\Promise\Deferred;
+use React\Promise\PromiseInterface;
+
+/**
+ * The `Client` class is responsible for communication with the remote SOAP
+ * WebService server.
+ *
+ * It requires a [`Browser`](https://github.com/clue/reactphp-buzz#browser) object
+ * bound to the main [`EventLoop`](https://github.com/reactphp/event-loop#usage)
+ * in order to handle async requests, the WSDL file contents and an optional
+ * array of SOAP options:
+ *
+ * ```php
+ * $loop = React\EventLoop\Factory::create();
+ * $browser = new Clue\React\Buzz\Browser($loop);
+ *
+ * $wsdl = '<?xml …';
+ * $options = array();
+ *
+ * $client = new Client($browser, $wsdl, $options);
+ * ```
+ *
+ * If you need custom connector settings (DNS resolution, TLS parameters, timeouts,
+ * proxy servers etc.), you can explicitly pass a custom instance of the
+ * [`ConnectorInterface`](https://github.com/reactphp/socket#connectorinterface)
+ * to the [`Browser`](https://github.com/clue/reactphp-buzz#browser) instance:
+ *
+ * ```php
+ * $connector = new \React\Socket\Connector($loop, array(
+ *     'dns' => '127.0.0.1',
+ *     'tcp' => array(
+ *         'bindto' => '192.168.10.1:0'
+ *     ),
+ *     'tls' => array(
+ *         'verify_peer' => false,
+ *         'verify_peer_name' => false
+ *     )
+ * ));
+ *
+ * $browser = new Browser($loop, $connector);
+ * $client = new Client($browser, $wsdl);
+ * ```
+ *
+ * The `Client` works similar to PHP's `SoapClient` (which it uses under the
+ * hood), but leaves you the responsibility to load the WSDL file. This allows
+ * you to use local WSDL files, WSDL files from a cache or the most common form,
+ * downloading the WSDL file contents from an URL through the `Browser`:
+ *
+ * ```php
+ * $browser = new Browser($loop);
+ *
+ * $browser->get($url)->then(
+ *     function (ResponseInterface $response) use ($browser) {
+ *         // WSDL file is ready, create client
+ *         $client = new Client($browser, (string)$response->getBody());
+ *
+ *         // do something…
+ *     },
+ *     function (Exception $e) {
+ *         // an error occured while trying to download the WSDL
+ *     }
+ * );
+ * ```
+ *
+ * The `Client` constructor loads the given WSDL file contents into memory and
+ * parses its definition. If the given WSDL file is invalid and can not be
+ * parsed, this will throw a `SoapFault`:
+ *
+ * ```php
+ * try {
+ *     $client = new Client($browser, $wsdl);
+ * } catch (SoapFault $e) {
+ *     echo 'Error: ' . $e->getMessage() . PHP_EOL;
+ * }
+ * ```
+ *
+ * > Note that if you have `ext-xdebug` loaded, this may halt with a fatal
+ *   error instead of throwing a `SoapFault`. It is not recommended to use this
+ *   extension in production, so this should only ever affect test environments.
+ *
+ * The `Client` constructor accepts an array of options. All given options will
+ * be passed through to the underlying `SoapClient`. However, not all options
+ * make sense in this async implementation and as such may not have the desired
+ * effect. See also [`SoapClient`](http://php.net/manual/en/soapclient.soapclient.php)
+ * documentation for more details.
+ *
+ * If working in WSDL mode, the `$options` parameter is optional. If working in
+ * non-WSDL mode, the WSDL parameter must be set to `null` and the options
+ * parameter must contain the `location` and `uri` options, where `location` is
+ * the URL of the SOAP server to send the request to, and `uri` is the target
+ * namespace of the SOAP service:
+ *
+ * ```php
+ * $client = new Client($browser, null, array(
+ *     'location' => 'http://example.com',
+ *     'uri' => 'http://ping.example.com',
+ * ));
+ * ```
+ *
+ * Similarly, if working in WSDL mode, the `location` option can be used to
+ * explicitly overwrite the URL of the SOAP server to send the request to:
+ *
+ * ```php
+ * $client = new Client($browser, $wsdl, array(
+ *     'location' => 'http://example.com'
+ * ));
+ * ```
+ *
+ * You can use the `soap_version` option to change from the default SOAP 1.1 to
+ * use SOAP 1.2 instead:
+ *
+ * ```php
+ * $client = new Client($browser, $wsdl, array(
+ *     'soap_version' => SOAP_1_2
+ * ));
+ * ```
+ *
+ * You can use the `classmap` option to map certain WSDL types to PHP classes
+ * like this:
+ *
+ * ```php
+ * $client = new Client($browser, $wsdl, array(
+ *     'classmap' => array(
+ *         'getBankResponseType' => BankResponse::class
+ *     )
+ * ));
+ * ```
+ *
+ * The `proxy_host` option (and family) is not supported by this library. As an
+ * alternative, you can configure the given `$browser` instance to use an
+ * [HTTP proxy server](https://github.com/clue/reactphp-buzz#http-proxy).
+ * If you find any other option is missing or not supported here, PRs are much
+ * appreciated!
+ *
+ * All public methods of the `Client` are considered *advanced usage*.
+ * If you want to call RPC functions, see below for the [`Proxy`](#proxy) class.
+ */
+class Client
+{
+    private $browser;
+    private $encoder;
+    private $decoder;
+
+    /**
+     * Instantiate a new SOAP client for the given WSDL contents.
+     *
+     * @param Browser     $browser
+     * @param string|null $wsdlContents
+     * @param array       $options
+     */
+    public function __construct(Browser $browser, $wsdlContents, array $options = array())
+    {
+        $wsdl = $wsdlContents !== null ? 'data://text/plain;base64,' . base64_encode($wsdlContents) : null;
+
+        // Accept HTTP responses with error status codes as valid responses.
+        // This is done in order to process these error responses through the normal SOAP decoder.
+        // Additionally, we explicitly limit number of redirects to zero because following redirects makes little sense
+        // because it transforms the POST request to a GET one and hence loses the SOAP request body.
+        $browser = $browser->withOptions(array(
+            'obeySuccessCode' => false,
+            'followRedirects' => true,
+            'maxRedirects' => 0
+        ));
+
+        $this->browser = $browser;
+        $this->encoder = new ClientEncoder($wsdl, $options);
+        $this->decoder = new ClientDecoder($wsdl, $options);
+    }
+
+    /**
+     * Queue the given function to be sent via SOAP and wait for a response from the remote web service.
+     *
+     * ```php
+     * // advanced usage, see Proxy for recommended alternative
+     * $promise = $client->soapCall('ping', array('hello', 42));
+     * ```
+     *
+     * Note: This is considered *advanced usage*, you may want to look into using the [`Proxy`](#proxy) instead.
+     *
+     * ```php
+     * $proxy = new Proxy($client);
+     * $promise = $proxy->ping('hello', 42);
+     * ```
+     *
+     * @param string  $name
+     * @param mixed[] $args
+     * @return PromiseInterface Returns a Promise<mixed, Exception>
+     */
+    public function soapCall($name, $args)
+    {
+        try {
+            $request = $this->encoder->encode($name, $args);
+        } catch (\Exception $e) {
+            $deferred = new Deferred();
+            $deferred->reject($e);
+            return $deferred->promise();
+        }
+
+        $decoder = $this->decoder;
+
+        return $this->browser->send($request)->then(
+            function (ResponseInterface $response) use ($decoder, $name) {
+                // HTTP response received => decode results for this function call
+                return $decoder->decode($name, (string)$response->getBody());
+            }
+        );
+    }
+
+    /**
+     * Returns an array of functions defined in the WSDL.
+     *
+     * It returns the equivalent of PHP's
+     * [`SoapClient::__getFunctions()`](http://php.net/manual/en/soapclient.getfunctions.php).
+     * In non-WSDL mode, this method returns `null`.
+     *
+     * @return string[]|null
+     */
+    public function getFunctions()
+    {
+        return $this->encoder->__getFunctions();
+    }
+
+    /**
+     * Returns an array of types defined in the WSDL.
+     *
+     * It returns the equivalent of PHP's
+     * [`SoapClient::__getTypes()`](http://php.net/manual/en/soapclient.gettypes.php).
+     * In non-WSDL mode, this method returns `null`.
+     *
+     * @return string[]|null
+     */
+    public function getTypes()
+    {
+        return $this->encoder->__getTypes();
+    }
+
+    /**
+     * Returns the location (URI) of the given webservice `$function`.
+     *
+     * Note that this is not to be confused with the WSDL file location.
+     * A WSDL file can contain any number of function definitions.
+     * It's very common that all of these functions use the same location definition.
+     * However, technically each function can potentially use a different location.
+     *
+     * The `$function` parameter should be a string with the the SOAP function name.
+     * See also [`getFunctions()`](#getfunctions) for a list of all available functions.
+     *
+     * ```php
+     * assert('http://example.com/soap/service' === $client->getLocation('echo'));
+     * ```
+     *
+     * For easier access, this function also accepts a numeric function index.
+     * It then uses [`getFunctions()`](#getfunctions) internally to get the function
+     * name for the given index.
+     * This is particularly useful for the very common case where all functions use the
+     * same location and accessing the first location is sufficient.
+     *
+     * ```php
+     * assert('http://example.com/soap/service' === $client->getLocation(0));
+     * ```
+     *
+     * When the `location` option has been set in the `Client` constructor
+     * (such as when in non-WSDL mode) or via the `withLocation()` method, this
+     * method returns the value of the given location.
+     *
+     * Passing a `$function` not defined in the WSDL file will throw a `SoapFault`.
+     *
+     * @param string|int $function
+     * @return string
+     * @throws \SoapFault if given function does not exist
+     * @see self::getFunctions()
+     */
+    public function getLocation($function)
+    {
+        if (is_int($function)) {
+            $functions = $this->getFunctions();
+            if (isset($functions[$function]) && preg_match('/^\w+ (\w+)\(/', $functions[$function], $match)) {
+                $function = $match[1];
+            }
+        }
+
+        // encode request for given $function
+        return (string)$this->encoder->encode($function, array())->getUri();
+    }
+
+    /**
+     * Returns a new `Client` with the updated location (URI) for all functions.
+     *
+     * Note that this is not to be confused with the WSDL file location.
+     * A WSDL file can contain any number of function definitions.
+     * It's very common that all of these functions use the same location definition.
+     * However, technically each function can potentially use a different location.
+     *
+     * ```php
+     * $client = $client->withLocation('http://example.com/soap');
+     *
+     * assert('http://example.com/soap' === $client->getLocation('echo'));
+     * ```
+     *
+     * As an alternative to this method, you can also set the `location` option
+     * in the `Client` constructor (such as when in non-WSDL mode).
+     *
+     * @param string $location
+     * @return self
+     * @see self::getLocation()
+     */
+    public function withLocation($location)
+    {
+        $client = clone $this;
+        $client->encoder = clone $this->encoder;
+        $client->encoder->__setLocation($location);
+
+        return $client;
+    }
+}
diff --git a/vendor/clue/soap-react/src/Protocol/ClientDecoder.php b/vendor/clue/soap-react/src/Protocol/ClientDecoder.php
new file mode 100644
index 0000000..39cb745
--- /dev/null
+++ b/vendor/clue/soap-react/src/Protocol/ClientDecoder.php
@@ -0,0 +1,53 @@
+<?php
+
+namespace Clue\React\Soap\Protocol;
+
+use \SoapClient;
+
+/**
+ * @internal
+ */
+final class ClientDecoder extends SoapClient
+{
+    private $response = null;
+
+    /**
+     * Decodes the SOAP response / return value from the given SOAP envelope (HTTP response body)
+     *
+     * @param string $function
+     * @param string $response
+     * @return mixed
+     * @throws \SoapFault if response indicates a fault (error condition) or is invalid
+     */
+    public function decode($function, $response)
+    {
+        // Temporarily save response internally for further processing
+        $this->response = $response;
+
+        // Let's pretend we just invoked the given SOAP function.
+        // This won't actually invoke anything (see `__doRequest()`), but this
+        // requires a valid function name to match its definition in the WSDL.
+        // Internally, simply use the injected response to parse its results.
+        $ret = $this->__soapCall($function, array());
+        $this->response = null;
+
+        return $ret;
+    }
+
+    /**
+     * Overwrites the internal request logic to parse the response
+     *
+     * By overwriting this method, we can skip the actual request sending logic
+     * and still use the internal parsing logic by injecting the response as
+     * the return code in this method. This will implicitly be invoked by the
+     * call to `pseudoCall()` in the above `decode()` method.
+     *
+     * @see SoapClient::__doRequest()
+     */
+    public function __doRequest($request, $location, $action, $version, $one_way = 0)
+    {
+        // the actual result doesn't actually matter, just return the given result
+        // this will be processed internally and will return the parsed result
+        return $this->response;
+    }
+}
diff --git a/vendor/clue/soap-react/src/Protocol/ClientEncoder.php b/vendor/clue/soap-react/src/Protocol/ClientEncoder.php
new file mode 100644
index 0000000..e9d0018
--- /dev/null
+++ b/vendor/clue/soap-react/src/Protocol/ClientEncoder.php
@@ -0,0 +1,69 @@
+<?php
+
+namespace Clue\React\Soap\Protocol;
+
+use \SoapClient;
+use RingCentral\Psr7\Request;
+
+/**
+ * @internal
+ */
+final class ClientEncoder extends SoapClient
+{
+    private $request = null;
+
+    /**
+     * Encodes the given RPC function name and arguments as a SOAP request
+     *
+     * @param string $name
+     * @param array $args
+     * @return Request
+     * @throws \SoapFault if request is invalid according to WSDL
+     */
+    public function encode($name, $args)
+    {
+        $this->__soapCall($name, $args);
+
+        $request = $this->request;
+        $this->request = null;
+
+        return $request;
+    }
+
+    /**
+     * Overwrites the internal request logic to build the request message
+     *
+     * By overwriting this method, we can skip the actual request sending logic
+     * and still use the internal request serializing logic by accessing the
+     * given `$request` parameter and building our custom request object from
+     * it. We skip/ignore its parsing logic by returing an empty response here.
+     * This will implicitly be invoked by the call to `__soapCall()` in the
+     * above `encode()` method.
+     *
+     * @see SoapClient::__doRequest()
+     */
+    public function __doRequest($request, $location, $action, $version, $one_way = 0)
+    {
+        $headers = array();
+        if ($version === SOAP_1_1) {
+            $headers = array(
+                'SOAPAction' => $action,
+                'Content-Type' => 'text/xml; charset=utf-8'
+            );
+        } elseif ($version === SOAP_1_2) {
+            $headers = array(
+                'Content-Type' => 'application/soap+xml; charset=utf-8; action=' . $action
+            );
+        }
+
+        $this->request = new Request(
+            'POST',
+            (string)$location,
+            $headers,
+            (string)$request
+        );
+
+        // do not actually block here, just pretend we're done...
+        return '';
+    }
+}
diff --git a/vendor/clue/soap-react/src/Proxy.php b/vendor/clue/soap-react/src/Proxy.php
new file mode 100644
index 0000000..06d70a0
--- /dev/null
+++ b/vendor/clue/soap-react/src/Proxy.php
@@ -0,0 +1,50 @@
+<?php
+
+namespace Clue\React\Soap;
+
+use React\Promise\PromiseInterface;
+
+/**
+ * The `Proxy` class wraps an existing [`Client`](#client) instance in order to ease calling
+ * SOAP functions.
+ *
+ * ```php
+ * $proxy = new Proxy($client);
+ * ```
+ *
+ * Each and every method call to the `Proxy` class will be sent via SOAP.
+ *
+ * ```php
+ * $proxy->myMethod($myArg1, $myArg2)->then(function ($response) {
+ *     // result received
+ * });
+ * ```
+ *
+ * Please refer to your WSDL or its accompanying documentation for details
+ * on which functions and arguments are supported.
+ *
+ * > Note that this class is called "Proxy" because it will forward (proxy) all
+ *   method calls to the actual SOAP service via the underlying
+ *   [`Client::soapCall()`](#soapcall) method. This is not to be confused with
+ *   using a proxy server. See [`Client`](#client) documentation for more
+ *   details on how to use an HTTP proxy server.
+ */
+final class Proxy
+{
+    private $client;
+
+    public function __construct(Client $client)
+    {
+        $this->client = $client;
+    }
+
+    /**
+     * @param string  $name
+     * @param mixed[] $args
+     * @return PromiseInterface
+     */
+    public function __call($name, $args)
+    {
+        return $this->client->soapCall($name, $args);
+    }
+}
diff --git a/vendor/clue/socket-raw/LICENSE b/vendor/clue/socket-raw/LICENSE
new file mode 100644
index 0000000..da15612
--- /dev/null
+++ b/vendor/clue/socket-raw/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2013 Christian Lück
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/vendor/clue/socket-raw/composer.json b/vendor/clue/socket-raw/composer.json
new file mode 100644
index 0000000..2add27e
--- /dev/null
+++ b/vendor/clue/socket-raw/composer.json
@@ -0,0 +1,23 @@
+{
+    "name": "clue/socket-raw",
+    "description": "Simple and lightweight OOP wrapper for PHP's low-level sockets extension (ext-sockets).",
+    "keywords": ["socket", "stream", "datagram", "dgram", "client", "server", "ipv6", "tcp", "udp", "icmp", "unix", "udg"],
+    "homepage": "https://github.com/clue/socket-raw",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Christian Lück",
+            "email": "christian@clue.engineering"
+        }
+    ],
+    "autoload": {
+        "psr-4": {"Socket\\Raw\\": "src"}
+    },
+    "require": {
+        "ext-sockets": "*",
+        "php": ">=5.3"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^9.3 || ^5.7 || ^4.8.35"
+    }
+}
diff --git a/vendor/clue/socket-raw/src/Exception.php b/vendor/clue/socket-raw/src/Exception.php
new file mode 100644
index 0000000..bdabf78
--- /dev/null
+++ b/vendor/clue/socket-raw/src/Exception.php
@@ -0,0 +1,91 @@
+<?php
+
+namespace Socket\Raw;
+
+use RuntimeException;
+
+class Exception extends RuntimeException
+{
+    /**
+     * Create an Exception after a socket operation on the given $resource failed
+     *
+     * @param \Socket|resource $resource
+     * @param string   $messagePrefix
+     * @return self
+     * @uses socket_last_error() to get last socket error code
+     * @uses socket_clear_error() to clear socket error code
+     * @uses self::createFromCode() to automatically construct exception with full error message
+     */
+    public static function createFromSocketResource($resource, $messagePrefix = 'Socket operation failed')
+    {
+        if (PHP_VERSION_ID >= 80000) {
+            try {
+                $code = socket_last_error($resource);
+            } catch (\Error $e) {
+                $code = SOCKET_ENOTSOCK;
+            }
+        } elseif (is_resource($resource)) {
+            $code = socket_last_error($resource);
+            socket_clear_error($resource);
+        } else {
+            // socket already closed, return fixed error code instead of operating on invalid handle
+            $code = SOCKET_ENOTSOCK;
+        }
+
+        return self::createFromCode($code, $messagePrefix);
+    }
+
+    /**
+     * Create an Exception after a global socket operation failed (like socket creation)
+     *
+     * @param string $messagePrefix
+     * @return self
+     * @uses socket_last_error() to get last global error code
+     * @uses socket_clear_error() to clear global error code
+     * @uses self::createFromCode() to automatically construct exception with full error message
+     */
+    public static function createFromGlobalSocketOperation($messagePrefix = 'Socket operation failed')
+    {
+        $code = socket_last_error();
+        socket_clear_error();
+
+        return self::createFromCode($code, $messagePrefix);
+    }
+
+    /**
+     * Create an Exception for given error $code
+     *
+     * @param int    $code
+     * @param string $messagePrefix
+     * @return self
+     * @throws Exception if given $val is boolean false
+     * @uses self::getErrorMessage() to translate error code to error message
+     */
+    public static function createFromCode($code, $messagePrefix = 'Socket error')
+    {
+        return new self($messagePrefix . ': ' . self::getErrorMessage($code), $code);
+    }
+
+    /**
+     * get error message for given error code
+     *
+     * @param int $code error code
+     * @return string
+     * @uses socket_strerror() to translate error code to error message
+     * @uses get_defined_constants() to check for related error constant
+     */
+    protected static function getErrorMessage($code)
+    {
+        $string = socket_strerror($code);
+
+        // search constant starting with SOCKET_ for this error code
+        foreach (get_defined_constants() as $key => $value) {
+            if($value === $code && strpos($key, 'SOCKET_') === 0) {
+                $string .= ' (' . $key . ')';
+                break;
+            }
+        }
+
+        return $string;
+    }
+}
diff --git a/vendor/clue/socket-raw/src/Factory.php b/vendor/clue/socket-raw/src/Factory.php
new file mode 100644
index 0000000..a5068f9
--- /dev/null
+++ b/vendor/clue/socket-raw/src/Factory.php
@@ -0,0 +1,282 @@
+<?php
+
+namespace Socket\Raw;
+
+use \InvalidArgumentException;
+
+class Factory
+{
+    /**
+     * create client socket connected to given target address
+     *
+     * @param string     $address target address to connect to
+     * @param null|float $timeout connection timeout (in seconds), default null = no limit
+     * @return \Socket\Raw\Socket
+     * @throws InvalidArgumentException if given address is invalid
+     * @throws Exception on error
+     * @uses self::createFromString()
+     * @uses Socket::connect()
+     * @uses Socket::connectTimeout()
+     */
+    public function createClient($address, $timeout = null)
+    {
+        $socket = $this->createFromString($address, $scheme);
+
+        try {
+            if ($timeout === null) {
+                $socket->connect($address);
+            } else {
+                // connectTimeout enables non-blocking mode, so turn blocking on again
+                $socket->connectTimeout($address, $timeout);
+                $socket->setBlocking(true);
+            }
+        } catch (Exception $e) {
+            $socket->close();
+            throw $e;
+        }
+
+        return $socket;
+    }
+
+    /**
+     * create server socket bound to given address (and start listening for streaming clients to connect to this stream socket)
+     *
+     * @param string $address address to bind socket to
+     * @return \Socket\Raw\Socket
+     * @throws Exception on error
+     * @uses self::createFromString()
+     * @uses Socket::bind()
+     * @uses Socket::listen() only for stream sockets (TCP/UNIX)
+     */
+    public function createServer($address)
+    {
+        $socket = $this->createFromString($address, $scheme);
+
+        try {
+            $socket->bind($address);
+
+            if ($socket->getType() === SOCK_STREAM) {
+                $socket->listen();
+            }
+        } catch (Exception $e) {
+            $socket->close();
+            throw $e;
+        }
+
+        return $socket;
+    }
+
+    /**
+     * create TCP/IPv4 stream socket
+     *
+     * @return \Socket\Raw\Socket
+     * @throws Exception on error
+     * @uses self::create()
+     */
+    public function createTcp4()
+    {
+        return $this->create(AF_INET, SOCK_STREAM, SOL_TCP);
+    }
+
+    /**
+     * create TCP/IPv6 stream socket
+     *
+     * @return \Socket\Raw\Socket
+     * @throws Exception on error
+     * @uses self::create()
+     */
+    public function createTcp6()
+    {
+        return $this->create(AF_INET6, SOCK_STREAM, SOL_TCP);
+    }
+
+    /**
+     * create UDP/IPv4 datagram socket
+     *
+     * @return \Socket\Raw\Socket
+     * @throws Exception on error
+     * @uses self::create()
+     */
+    public function createUdp4()
+    {
+        return $this->create(AF_INET, SOCK_DGRAM, SOL_UDP);
+    }
+
+    /**
+     * create UDP/IPv6 datagram socket
+     *
+     * @return \Socket\Raw\Socket
+     * @throws Exception on error
+     * @uses self::create()
+     */
+    public function createUdp6()
+    {
+        return $this->create(AF_INET6, SOCK_DGRAM, SOL_UDP);
+    }
+
+    /**
+     * create local UNIX stream socket
+     *
+     * @return \Socket\Raw\Socket
+     * @throws Exception on error
+     * @uses self::create()
+     */
+    public function createUnix()
+    {
+        return $this->create(AF_UNIX, SOCK_STREAM, 0);
+    }
+
+    /**
+     * create local UNIX datagram socket (UDG)
+     *
+     * @return \Socket\Raw\Socket
+     * @throws Exception on error
+     * @uses self::create()
+     */
+    public function createUdg()
+    {
+        return $this->create(AF_UNIX, SOCK_DGRAM, 0);
+    }
+
+    /**
+     * create raw ICMP/IPv4 datagram socket (requires root!)
+     *
+     * @return \Socket\Raw\Socket
+     * @throws Exception on error
+     * @uses self::create()
+     */
+    public function createIcmp4()
+    {
+        return $this->create(AF_INET, SOCK_RAW, getprotobyname('icmp'));
+    }
+
+    /**
+     * create raw ICMPv6 (IPv6) datagram socket (requires root!)
+     *
+     * @return \Socket\Raw\Socket
+     * @throws Exception on error
+     * @uses self::create()
+     */
+    public function createIcmp6()
+    {
+        return $this->create(AF_INET6, SOCK_RAW, 58 /*getprotobyname('icmp')*/);
+    }
+
+    /**
+     * create low level socket with given arguments
+     *
+     * @param int $domain
+     * @param int $type
+     * @param int $protocol
+     * @return \Socket\Raw\Socket
+     * @throws Exception if creating socket fails
+     * @throws \Error PHP 8 only: throws \Error when arguments are invalid
+     * @uses socket_create()
+     */
+    public function create($domain, $type, $protocol)
+    {
+        $sock = @socket_create($domain, $type, $protocol);
+        if ($sock === false) {
+            throw Exception::createFromGlobalSocketOperation('Unable to create socket');
+        }
+        return new Socket($sock);
+    }
+
+    /**
+     * create a pair of indistinguishable sockets (commonly used in IPC)
+     *
+     * @param int $domain
+     * @param int $type
+     * @param int $protocol
+     * @return \Socket\Raw\Socket[]
+     * @throws Exception if creating pair of sockets fails
+     * @throws \Error PHP 8 only: throws \Error when arguments are invalid
+     * @uses socket_create_pair()
+     */
+    public function createPair($domain, $type, $protocol)
+    {
+        $ret = @socket_create_pair($domain, $type, $protocol, $pair);
+        if ($ret === false) {
+            throw Exception::createFromGlobalSocketOperation('Unable to create pair of sockets');
+        }
+        return array(new Socket($pair[0]), new Socket($pair[1]));
+    }
+
+    /**
+     * create TCP/IPv4 stream socket and listen for new connections
+     *
+     * @param int $port
+     * @param int $backlog
+     * @return \Socket\Raw\Socket
+     * @throws Exception if creating listening socket fails
+     * @throws \Error PHP 8 only: throws \Error when arguments are invalid
+     * @uses socket_create_listen()
+     * @see self::createServer() as an alternative to bind to specific IP, IPv6, UDP, UNIX, UGP
+     */
+    public function createListen($port, $backlog = 128)
+    {
+        $sock = @socket_create_listen($port, $backlog);
+        if ($sock === false) {
+            throw Exception::createFromGlobalSocketOperation('Unable to create listening socket');
+        }
+        return new Socket($sock);
+    }
+
+    /**
+     * create socket for given address
+     *
+     * @param string $address (passed by reference in order to remove scheme, if present)
+     * @param string|null $scheme  default scheme to use, defaults to TCP (passed by reference in order to update with actual scheme used)
+     * @return \Socket\Raw\Socket
+     * @throws InvalidArgumentException if given address is invalid
+     * @throws Exception in case creating socket failed
+     * @uses self::createTcp4() etc.
+     */
+    public function createFromString(&$address, &$scheme)
+    {
+        if ($scheme === null) {
+            $scheme = 'tcp';
+        }
+
+        $hasScheme = false;
+
+        $pos = strpos($address, '://');
+        if ($pos !== false) {
+            $scheme = substr($address, 0, $pos);
+            $address = substr($address, $pos + 3);
+            $hasScheme = true;
+        }
+
+        if (strpos($address, ':') !== strrpos($address, ':') && in_array($scheme, array('tcp', 'udp', 'icmp'))) {
+            // TCP/UDP/ICMP address with several colons => must be IPv6
+            $scheme .= '6';
+        }
+
+        if ($scheme === 'tcp') {
+            $socket = $this->createTcp4();
+        } elseif ($scheme === 'udp') {
+            $socket = $this->createUdp4();
+        } elseif ($scheme === 'tcp6') {
+            $socket = $this->createTcp6();
+        } elseif ($scheme === 'udp6') {
+            $socket = $this->createUdp6();
+        } elseif ($scheme === 'unix') {
+            $socket = $this->createUnix();
+        } elseif ($scheme === 'udg') {
+            $socket = $this->createUdg();
+        } elseif ($scheme === 'icmp') {
+            $socket = $this->createIcmp4();
+        } elseif ($scheme === 'icmp6') {
+            $socket = $this->createIcmp6();
+            if ($hasScheme) {
+                // scheme was stripped from address, resulting IPv6 must not
+                // have a port (due to ICMP) and thus must not be enclosed in
+                // square brackets
+                $address = trim($address, '[]');
+            }
+        } else {
+            throw new InvalidArgumentException('Invalid address scheme given');
+        }
+        return $socket;
+    }
+}
diff --git a/vendor/clue/socket-raw/src/Socket.php b/vendor/clue/socket-raw/src/Socket.php
new file mode 100644
index 0000000..67407f2
--- /dev/null
+++ b/vendor/clue/socket-raw/src/Socket.php
@@ -0,0 +1,562 @@
+<?php
+
+namespace Socket\Raw;
+
+/**
+ * Simple and lightweight OOP wrapper for the low-level sockets extension (ext-sockets)
+ *
+ * @author clue
+ * @link https://github.com/clue/php-socket-raw
+ */
+class Socket
+{
+    /**
+     * reference to actual socket resource
+     *
+     * @var \Socket|resource
+     */
+    private $resource;
+
+    /**
+     * instanciate socket wrapper for given socket resource
+     *
+     * should usually not be called manually, see Factory
+     *
+     * @param \Socket|resource $resource
+     * @see Factory as the preferred (and simplest) way to construct socket instances
+     */
+    public function __construct($resource)
+    {
+        $this->resource = $resource;
+    }
+
+    /**
+     * get actual socket resource
+     *
+     * @return \Socket|resource returns the socket resource (a `Socket` object as of PHP 8)
+     */
+    public function getResource()
+    {
+        return $this->resource;
+    }
+
+    /**
+     * accept an incomming connection on this listening socket
+     *
+     * @return \Socket\Raw\Socket new connected socket used for communication
+     * @throws Exception on error, if this is not a listening socket or there's no connection pending
+     * @throws \Error PHP 8 only: throws \Error when socket is invalid
+     * @see self::selectRead() to check if this listening socket can accept()
+     * @see Factory::createServer() to create a listening socket
+     * @see self::listen() has to be called first
+     * @uses socket_accept()
+     */
+    public function accept()
+    {
+        $resource = @socket_accept($this->resource);
+        if ($resource === false) {
+            throw Exception::createFromGlobalSocketOperation();
+        }
+        return new Socket($resource);
+    }
+
+    /**
+     * binds a name/address/path to this socket
+     *
+     * has to be called before issuing connect() or listen()
+     *
+     * @param string $address either of IPv4:port, hostname:port, [IPv6]:port, unix-path
+     * @return self $this (chainable)
+     * @throws Exception on error
+     * @throws \Error PHP 8 only: throws \Error when socket or arguments are invalid
+     * @uses socket_bind()
+     */
+    public function bind($address)
+    {
+        $ret = @socket_bind($this->resource, $this->unformatAddress($address, $port), $port);
+        if ($ret === false) {
+            throw Exception::createFromSocketResource($this->resource);
+        }
+        return $this;
+    }
+
+    /**
+     * close this socket
+     *
+     * ATTENTION: make sure to NOT re-use this socket instance after closing it!
+     * its socket resource remains closed and most further operations will fail!
+     *
+     * @return self $this (chainable)
+     * @throws \Error PHP 8 only: throws \Error when socket is invalid
+     * @see self::shutdown() should be called before closing socket
+     * @uses socket_close()
+     */
+    public function close()
+    {
+        socket_close($this->resource);
+        return $this;
+    }
+
+    /**
+     * initiate a connection to given address
+     *
+     * @param string $address either of IPv4:port, hostname:port, [IPv6]:port, unix-path
+     * @return self $this (chainable)
+     * @throws Exception on error
+     * @throws \Error PHP 8 only: throws \Error when socket or arguments are invalid
+     * @uses socket_connect()
+     */
+    public function connect($address)
+    {
+        $ret = @socket_connect($this->resource, $this->unformatAddress($address, $port), $port);
+        if ($ret === false) {
+            throw Exception::createFromSocketResource($this->resource);
+        }
+        return $this;
+    }
+
+    /**
+     * Initiates a new connection to given address, wait for up to $timeout seconds
+     *
+     * The given $timeout parameter is an upper bound, a maximum time to wait
+     * for the connection to be either accepted or rejected.
+     *
+     * The resulting socket resource will be set to non-blocking mode,
+     * regardless of its previous state and whether this method succedes or
+     * if it fails. Make sure to reset with `setBlocking(true)` if you want to
+     * continue using blocking calls.
+     *
+     * @param string $address either of IPv4:port, hostname:port, [IPv6]:port, unix-path
+     * @param float  $timeout maximum time to wait (in seconds)
+     * @return self $this (chainable)
+     * @throws Exception on error
+     * @throws \Error PHP 8 only: throws \Error when socket or arguments are invalid
+     * @uses self::setBlocking() to enable non-blocking mode
+     * @uses self::connect() to initiate the connection
+     * @uses self::selectWrite() to wait for the connection to complete
+     * @uses self::assertAlive() to check connection state
+     */
+    public function connectTimeout($address, $timeout)
+    {
+        $this->setBlocking(false);
+
+        try {
+            // socket is non-blocking, so connect should emit EINPROGRESS
+            $this->connect($address);
+
+            // socket is already connected immediately?
+            return $this;
+        } catch (Exception $e) {
+            // non-blocking connect() should be EINPROGRESS (or EWOULDBLOCK on Windows) => otherwise re-throw
+            if ($e->getCode() !== SOCKET_EINPROGRESS && $e->getCode() !== SOCKET_EWOULDBLOCK) {
+                throw $e;
+            }
+
+            // connection should be completed (or rejected) within timeout: socket becomes writable on success or error
+            // Windows requires special care because it uses exceptfds for socket errors: https://github.com/reactphp/event-loop/issues/206
+            $r = null;
+            $w = array($this->resource);
+            $e = DIRECTORY_SEPARATOR === '\\' ? $w : null;
+            $ret = @socket_select($r, $w, $e, $timeout === null ? null : (int) $timeout, (int) (($timeout - floor($timeout)) * 1000000));
+
+            if ($ret === false) {
+                throw Exception::createFromGlobalSocketOperation('Failed to select socket for writing');
+            } elseif ($ret === 0) {
+                throw new Exception('Timed out while waiting for connection', SOCKET_ETIMEDOUT);
+            }
+
+            // confirm connection success (or fail if connected has been rejected)
+            $this->assertAlive();
+
+            return $this;
+        }
+    }
+
+    /**
+     * get socket option
+     *
+     * @param int $level
+     * @param int $optname
+     * @return mixed
+     * @throws Exception on error
+     * @throws \Error PHP 8 only: throws \Error when socket or arguments are invalid
+     * @uses socket_get_option()
+     */
+    public function getOption($level, $optname)
+    {
+        $value = @socket_get_option($this->resource, $level, $optname);
+        if ($value === false) {
+            throw Exception::createFromSocketResource($this->resource);
+        }
+        return $value;
+    }
+
+    /**
+     * get remote side's address/path
+     *
+     * @return string
+     * @throws Exception on error
+     * @throws \Error PHP 8 only: throws \Error when socket is invalid
+     * @uses socket_getpeername()
+     */
+    public function getPeerName()
+    {
+        $ret = @socket_getpeername($this->resource, $address, $port);
+        if ($ret === false) {
+            throw Exception::createFromSocketResource($this->resource);
+        }
+        return $this->formatAddress($address, $port);
+    }
+
+    /**
+     * get local side's address/path
+     *
+     * @return string
+     * @throws Exception on error
+     * @throws \Error PHP 8 only: throws \Error when socket is invalid
+     * @uses socket_getsockname()
+     */
+    public function getSockName()
+    {
+        $ret = @socket_getsockname($this->resource, $address, $port);
+        if ($ret === false) {
+            throw Exception::createFromSocketResource($this->resource);
+        }
+        return $this->formatAddress($address, $port);
+    }
+
+    /**
+     * start listen for incoming connections
+     *
+     * @param int $backlog maximum number of incoming connections to be queued
+     * @return self $this (chainable)
+     * @throws Exception on error
+     * @throws \Error PHP 8 only: throws \Error when socket or arguments are invalid
+     * @see self::bind() has to be called first to bind name to socket
+     * @uses socket_listen()
+     */
+    public function listen($backlog = 0)
+    {
+        $ret = @socket_listen($this->resource, $backlog);
+        if ($ret === false) {
+            throw Exception::createFromSocketResource($this->resource);
+        }
+        return $this;
+    }
+
+    /**
+     * read up to $length bytes from connect()ed / accept()ed socket
+     *
+     * The $type parameter specifies if this should use either binary safe reading
+     * (PHP_BINARY_READ, the default) or stop at CR or LF characters (PHP_NORMAL_READ)
+     *
+     * @param int $length maximum length to read
+     * @param int $type   either of PHP_BINARY_READ (the default) or PHP_NORMAL_READ
+     * @return string
+     * @throws Exception on error
+     * @throws \Error PHP 8 only: throws \Error when socket or arguments are invalid
+     * @see self::recv() if you need to pass flags
+     * @uses socket_read()
+     */
+    public function read($length, $type = PHP_BINARY_READ)
+    {
+        $data = @socket_read($this->resource, $length, $type);
+        if ($data === false) {
+            throw Exception::createFromSocketResource($this->resource);
+        }
+        return $data;
+    }
+
+    /**
+     * receive up to $length bytes from connect()ed / accept()ed socket
+     *
+     * @param int $length maximum length to read
+     * @param int $flags
+     * @return string
+     * @throws Exception on error
+     * @throws \Error PHP 8 only: throws \Error when socket or arguments are invalid
+     * @see self::read() if you do not need to pass $flags
+     * @see self::recvFrom() if your socket is not connect()ed
+     * @uses socket_recv()
+     */
+    public function recv($length, $flags)
+    {
+        $ret = @socket_recv($this->resource, $buffer, $length, $flags);
+        if ($ret === false) {
+            throw Exception::createFromSocketResource($this->resource);
+        }
+        return $buffer;
+    }
+
+    /**
+     * receive up to $length bytes from socket
+     *
+     * @param int    $length maximum length to read
+     * @param int    $flags
+     * @param string $remote reference will be filled with remote/peer address/path
+     * @return string
+     * @throws Exception on error
+     * @throws \Error PHP 8 only: throws \Error when socket or arguments are invalid
+     * @see self::recv() if your socket is connect()ed
+     * @uses socket_recvfrom()
+     */
+    public function recvFrom($length, $flags, &$remote)
+    {
+        $ret = @socket_recvfrom($this->resource, $buffer, $length, $flags, $address, $port);
+        if ($ret === false) {
+            throw Exception::createFromSocketResource($this->resource);
+        }
+        $remote = $this->formatAddress($address, $port);
+        return $buffer;
+    }
+
+    /**
+     * check socket to see if a read/recv/revFrom will not block
+     *
+     * @param float|null $sec maximum time to wait (in seconds), 0 = immediate polling, null = no limit
+     * @return boolean true = socket ready (read will not block), false = timeout expired, socket is not ready
+     * @throws Exception on error
+     * @throws \Error PHP 8 only: throws \Error when socket or arguments are invalid
+     * @uses socket_select()
+     */
+    public function selectRead($sec = 0)
+    {
+        $usec = $sec === null ? 0 : (int) (($sec - floor($sec)) * 1000000);
+        $r = array($this->resource);
+        $n = null;
+        $ret = @socket_select($r, $n, $n, $sec === null ? null : (int) $sec, $usec);
+        if ($ret === false) {
+            throw Exception::createFromGlobalSocketOperation('Failed to select socket for reading');
+        }
+        return !!$ret;
+    }
+
+    /**
+     * check socket to see if a write/send/sendTo will not block
+     *
+     * @param float|null $sec maximum time to wait (in seconds), 0 = immediate polling, null = no limit
+     * @return boolean true = socket ready (write will not block), false = timeout expired, socket is not ready
+     * @throws Exception on error
+     * @throws \Error PHP 8 only: throws \Error when socket or arguments are invalid
+     * @uses socket_select()
+     */
+    public function selectWrite($sec = 0)
+    {
+        $usec = $sec === null ? 0 : (int) (($sec - floor($sec)) * 1000000);
+        $w = array($this->resource);
+        $n = null;
+        $ret = @socket_select($n, $w, $n, $sec === null ? null : (int) $sec, $usec);
+        if ($ret === false) {
+            throw Exception::createFromGlobalSocketOperation('Failed to select socket for writing');
+        }
+        return !!$ret;
+    }
+
+    /**
+     * send given $buffer to connect()ed / accept()ed socket
+     *
+     * @param string $buffer
+     * @param int    $flags
+     * @return int number of bytes actually written (make sure to check against given buffer length!)
+     * @throws Exception on error
+     * @throws \Error PHP 8 only: throws \Error when socket or arguments are invalid
+     * @see self::write() if you do not need to pass $flags
+     * @see self::sendTo() if your socket is not connect()ed
+     * @uses socket_send()
+     */
+    public function send($buffer, $flags)
+    {
+        $ret = @socket_send($this->resource, $buffer, strlen($buffer), $flags);
+        if ($ret === false) {
+            throw Exception::createFromSocketResource($this->resource);
+        }
+        return $ret;
+    }
+
+    /**
+     * send given $buffer to socket
+     *
+     * @param string $buffer
+     * @param int    $flags
+     * @param string $remote remote/peer address/path
+     * @return int number of bytes actually written
+     * @throws Exception on error
+     * @throws \Error PHP 8 only: throws \Error when socket or arguments are invalid
+     * @see self::send() if your socket is connect()ed
+     * @uses socket_sendto()
+     */
+    public function sendTo($buffer, $flags, $remote)
+    {
+        $ret = @socket_sendto($this->resource, $buffer, strlen($buffer), $flags, $this->unformatAddress($remote, $port), $port);
+        if ($ret === false) {
+            throw Exception::createFromSocketResource($this->resource);
+        }
+        return $ret;
+    }
+
+    /**
+     * enable/disable blocking/nonblocking mode (O_NONBLOCK flag)
+     *
+     * @param boolean $toggle
+     * @return self $this (chainable)
+     * @throws Exception on error
+     * @throws \Error PHP 8 only: throws \Error when socket or arguments are invalid
+     * @uses socket_set_block()
+     * @uses socket_set_nonblock()
+     */
+    public function setBlocking($toggle = true)
+    {
+        $ret = $toggle ? @socket_set_block($this->resource) : @socket_set_nonblock($this->resource);
+        if ($ret === false) {
+            throw Exception::createFromSocketResource($this->resource);
+        }
+        return $this;
+    }
+
+    /**
+     * set socket option
+     *
+     * @param int   $level
+     * @param int   $optname
+     * @param mixed $optval
+     * @return self $this (chainable)
+     * @throws Exception on error
+     * @throws \Error PHP 8 only: throws \Error when socket or arguments are invalid
+     * @see self::getOption()
+     * @uses socket_set_option()
+     */
+    public function setOption($level, $optname, $optval)
+    {
+        $ret = @socket_set_option($this->resource, $level, $optname, $optval);
+        if ($ret === false) {
+            throw Exception::createFromSocketResource($this->resource);
+        }
+        return $this;
+    }
+
+    /**
+     * shuts down socket for receiving, sending or both
+     *
+     * @param int $how 0 = shutdown reading, 1 = shutdown writing, 2 = shutdown reading and writing
+     * @return self $this (chainable)
+     * @throws Exception on error
+     * @throws \Error PHP 8 only: throws \Error when socket or arguments are invalid
+     * @see self::close()
+     * @uses socket_shutdown()
+     */
+    public function shutdown($how = 2)
+    {
+        $ret = @socket_shutdown($this->resource, $how);
+        if ($ret === false) {
+            throw Exception::createFromSocketResource($this->resource);
+        }
+        return $this;
+    }
+
+    /**
+     * write $buffer to connect()ed / accept()ed socket
+     *
+     * @param string $buffer
+     * @return int number of bytes actually written
+     * @throws Exception on error
+     * @throws \Error PHP 8 only: throws \Error when socket or arguments are invalid
+     * @see self::send() if you need to pass flags
+     * @uses socket_write()
+     */
+    public function write($buffer)
+    {
+        $ret = @socket_write($this->resource, $buffer);
+        if ($ret === false) {
+            throw Exception::createFromSocketResource($this->resource);
+        }
+        return $ret;
+    }
+
+    /**
+     * get socket type as passed to socket_create()
+     *
+     * @return int usually either SOCK_STREAM or SOCK_DGRAM
+     * @throws Exception on error
+     * @throws \Error PHP 8 only: throws \Error when socket is invalid
+     * @uses self::getOption()
+     */
+    public function getType()
+    {
+        return $this->getOption(SOL_SOCKET, SO_TYPE);
+    }
+
+    /**
+     * assert that this socket is alive and its error code is 0
+     *
+     * This will fetch and reset the current socket error code from the
+     * socket and options and will throw an Exception along with error
+     * message and code if the code is not 0, i.e. if it does indicate
+     * an error situation.
+     *
+     * Calling this method should not be needed in most cases and is
+     * likely to not throw an Exception. Each socket operation like
+     * connect(), send(), etc. will throw a dedicated Exception in case
+     * of an error anyway.
+     *
+     * @return self $this (chainable)
+     * @throws Exception if error code is not 0
+     * @throws \Error PHP 8 only: throws \Error when socket is invalid
+     * @uses self::getOption() to retrieve and clear current error code
+     * @uses self::getErrorMessage() to translate error code to
+     */
+    public function assertAlive()
+    {
+        $code = $this->getOption(SOL_SOCKET, SO_ERROR);
+        if ($code !== 0) {
+            throw Exception::createFromCode($code, 'Socket error');
+        }
+        return $this;
+    }
+
+    /**
+     * format given address/host/path and port
+     *
+     * @param string $address
+     * @param int    $port
+     * @return string
+     */
+    protected function formatAddress($address, $port)
+    {
+        if ($port !== 0) {
+            if (strpos($address, ':') !== false) {
+                $address = '[' . $address . ']';
+            }
+            $address .= ':' . $port;
+        }
+        return $address;
+    }
+
+    /**
+     * format given address by splitting it into returned address and port set by reference
+     *
+     * @param string $address
+     * @param int $port
+     * @return string address with port removed
+     */
+    protected function unformatAddress($address, &$port)
+    {
+        // [::1]:2 => ::1 2
+        // test:2 => test 2
+        // ::1 => ::1
+        // test => test
+
+        $colon = strrpos($address, ':');
+
+        // there is a colon and this is the only colon or there's a closing IPv6 bracket right before it
+        if ($colon !== false && (strpos($address, ':') === $colon || strpos($address, ']') === ($colon - 1))) {
+            $port = (int)substr($address, $colon + 1);
+            $address = substr($address, 0, $colon);
+
+            // remove IPv6 square brackets
+            if (substr($address, 0, 1) === '[') {
+                $address = substr($address, 1, -1);
+            }
+        }
+        return $address;
+    }
+}
diff --git a/vendor/clue/socks-react/LICENSE b/vendor/clue/socks-react/LICENSE
new file mode 100644
index 0000000..8efa9aa
--- /dev/null
+++ b/vendor/clue/socks-react/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2011 Christian Lück
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/vendor/clue/socks-react/composer.json b/vendor/clue/socks-react/composer.json
new file mode 100644
index 0000000..c57742b
--- /dev/null
+++ b/vendor/clue/socks-react/composer.json
@@ -0,0 +1,31 @@
+{
+    "name": "clue/socks-react",
+    "description": "Async SOCKS proxy connector client and server implementation, tunnel any TCP/IP-based protocol through a SOCKS5 or SOCKS4(a) proxy server, built on top of ReactPHP.",
+    "keywords": ["socks client", "socks server", "socks5", "socks4a", "proxy server", "tcp tunnel", "async", "ReactPHP"],
+    "homepage": "https://github.com/clue/reactphp-socks",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Christian Lück",
+            "email": "christian@clue.engineering"
+        }
+    ],
+    "require": {
+        "php": ">=5.3",
+        "react/promise": "^2.1 || ^1.2",
+        "react/socket": "^1.9"
+    },
+    "require-dev": {
+        "clue/block-react": "^1.1",
+        "clue/connection-manager-extra": "^1.0 || ^0.7",
+        "phpunit/phpunit": "^9.3 || ^5.7 || ^4.8.35",
+        "react/event-loop": "^1.2",
+        "react/http": "^1.5"
+    },
+    "autoload": {
+        "psr-4": { "Clue\\React\\Socks\\": "src/" }
+    },
+    "autoload-dev": {
+        "psr-4": { "Clue\\Tests\\React\\Socks\\": "tests/" }
+    }
+}
diff --git a/vendor/clue/socks-react/src/Client.php b/vendor/clue/socks-react/src/Client.php
new file mode 100644
index 0000000..5350b54
--- /dev/null
+++ b/vendor/clue/socks-react/src/Client.php
@@ -0,0 +1,452 @@
+<?php
+
+namespace Clue\React\Socks;
+
+use React\Promise;
+use React\Promise\PromiseInterface;
+use React\Promise\Deferred;
+use React\Socket\ConnectionInterface;
+use React\Socket\Connector;
+use React\Socket\ConnectorInterface;
+use React\Socket\FixedUriConnector;
+use Exception;
+use InvalidArgumentException;
+use RuntimeException;
+
+final class Client implements ConnectorInterface
+{
+    /**
+     * @var ConnectorInterface
+     */
+    private $connector;
+
+    private $socksUri;
+
+    private $protocolVersion = 5;
+
+    private $auth = null;
+
+    /**
+     * @param string              $socksUri
+     * @param ?ConnectorInterface $connector
+     * @throws InvalidArgumentException
+     */
+    public function __construct($socksUri, ConnectorInterface $connector = null)
+    {
+        // support `sockss://` scheme for SOCKS over TLS
+        // support `socks+unix://` scheme for Unix domain socket (UDS) paths
+        if (preg_match('/^(socks(?:5|4)?)(s|\+unix):\/\/(.*?@)?(.+?)$/', $socksUri, $match)) {
+            // rewrite URI to parse SOCKS scheme, authentication and dummy host
+            $socksUri = $match[1] . '://' . $match[3] . 'localhost';
+
+            // connector uses appropriate transport scheme and explicit host given
+            $connector = new FixedUriConnector(
+                ($match[2] === 's' ? 'tls://' : 'unix://') . $match[4],
+                $connector ?: new Connector()
+            );
+        }
+
+        // assume default scheme if none is given
+        if (strpos($socksUri, '://') === false) {
+            $socksUri = 'socks://' . $socksUri;
+        }
+
+        // parse URI into individual parts
+        $parts = parse_url($socksUri);
+        if (!$parts || !isset($parts['scheme'], $parts['host'])) {
+            throw new InvalidArgumentException('Invalid SOCKS server URI "' . $socksUri . '"');
+        }
+
+        // assume default port
+        if (!isset($parts['port'])) {
+            $parts['port'] = 1080;
+        }
+
+        // user or password in URI => SOCKS5 authentication
+        if (isset($parts['user']) || isset($parts['pass'])) {
+            if ($parts['scheme'] !== 'socks' && $parts['scheme'] !== 'socks5') {
+                // fail if any other protocol version given explicitly
+                throw new InvalidArgumentException('Authentication requires SOCKS5. Consider using protocol version 5 or waive authentication');
+            }
+            $parts += array('user' => '', 'pass' => '');
+            $this->setAuth(rawurldecode($parts['user']), rawurldecode($parts['pass']));
+        }
+
+        // check for valid protocol version from URI scheme
+        $this->setProtocolVersionFromScheme($parts['scheme']);
+
+        $this->socksUri = $parts['host'] . ':' . $parts['port'];
+        $this->connector = $connector ?: new Connector();
+    }
+
+    private function setProtocolVersionFromScheme($scheme)
+    {
+        if ($scheme === 'socks' || $scheme === 'socks5') {
+            $this->protocolVersion = 5;
+        } elseif ($scheme === 'socks4') {
+            $this->protocolVersion = 4;
+        } else {
+            throw new InvalidArgumentException('Invalid protocol version given "' . $scheme . '://"');
+        }
+    }
+
+    /**
+     * set login data for username/password authentication method (RFC1929)
+     *
+     * @param string $username
+     * @param string $password
+     * @link http://tools.ietf.org/html/rfc1929
+     */
+    private function setAuth($username, $password)
+    {
+        if (strlen($username) > 255 || strlen($password) > 255) {
+            throw new InvalidArgumentException('Both username and password MUST NOT exceed a length of 255 bytes each');
+        }
+        $this->auth = pack('C2', 0x01, strlen($username)) . $username . pack('C', strlen($password)) . $password;
+    }
+
+    /**
+     * Establish a TCP/IP connection to the given target URI through the SOCKS server
+     *
+     * Many higher-level networking protocols build on top of TCP. It you're dealing
+     * with one such client implementation,  it probably uses/accepts an instance
+     * implementing ReactPHP's `ConnectorInterface` (and usually its default `Connector`
+     * instance). In this case you can also pass this `Connector` instance instead
+     * to make this client implementation SOCKS-aware. That's it.
+     *
+     * @param string $uri
+     * @return PromiseInterface Promise<ConnectionInterface,Exception>
+     */
+    public function connect($uri)
+    {
+        if (strpos($uri, '://') === false) {
+            $uri = 'tcp://' . $uri;
+        }
+
+        $parts = parse_url($uri);
+        if (!$parts || !isset($parts['scheme'], $parts['host'], $parts['port']) || $parts['scheme'] !== 'tcp') {
+            return Promise\reject(new InvalidArgumentException('Invalid target URI specified'));
+        }
+
+        $host = trim($parts['host'], '[]');
+        $port = $parts['port'];
+
+        if (strlen($host) > 255 || $port > 65535 || $port < 0 || (string)$port !== (string)(int)$port) {
+            return Promise\reject(new InvalidArgumentException('Invalid target specified'));
+        }
+
+        // construct URI to SOCKS server to connect to
+        $socksUri = $this->socksUri;
+
+        // append path from URI if given
+        if (isset($parts['path'])) {
+            $socksUri .= $parts['path'];
+        }
+
+        // parse query args
+        $args = array();
+        if (isset($parts['query'])) {
+            parse_str($parts['query'], $args);
+        }
+
+        // append hostname from URI to query string unless explicitly given
+        if (!isset($args['hostname'])) {
+            $args['hostname'] = $host;
+        }
+
+        // append query string
+        $socksUri .= '?' . http_build_query($args, '', '&');
+
+        // append fragment from URI if given
+        if (isset($parts['fragment'])) {
+            $socksUri .= '#' . $parts['fragment'];
+        }
+
+        // start TCP/IP connection to SOCKS server
+        $connecting = $this->connector->connect($socksUri);
+
+        $deferred = new Deferred(function ($_, $reject) use ($uri, $connecting) {
+            $reject(new RuntimeException(
+                'Connection to ' . $uri . ' cancelled while waiting for proxy (ECONNABORTED)',
+                defined('SOCKET_ECONNABORTED') ? SOCKET_ECONNABORTED : 103
+            ));
+
+            // either close active connection or cancel pending connection attempt
+            $connecting->then(function (ConnectionInterface $stream) {
+                $stream->close();
+            });
+            $connecting->cancel();
+        });
+
+        // handle SOCKS protocol once connection is ready
+        // resolve plain connection once SOCKS protocol is completed
+        $that = $this;
+        $connecting->then(
+            function (ConnectionInterface $stream) use ($that, $host, $port, $deferred, $uri) {
+                $that->handleConnectedSocks($stream, $host, $port, $deferred, $uri);
+            },
+            function (Exception $e) use ($uri, $deferred) {
+                $deferred->reject($e = new RuntimeException(
+                    'Connection to ' . $uri . ' failed because connection to proxy failed (ECONNREFUSED)',
+                    defined('SOCKET_ECONNREFUSED') ? SOCKET_ECONNREFUSED : 111,
+                    $e
+                ));
+
+                // avoid garbage references by replacing all closures in call stack.
+                // what a lovely piece of code!
+                $r = new \ReflectionProperty('Exception', 'trace');
+                $r->setAccessible(true);
+                $trace = $r->getValue($e);
+
+                // Exception trace arguments are not available on some PHP 7.4 installs
+                // @codeCoverageIgnoreStart
+                foreach ($trace as &$one) {
+                    if (isset($one['args'])) {
+                        foreach ($one['args'] as &$arg) {
+                            if ($arg instanceof \Closure) {
+                                $arg = 'Object(' . \get_class($arg) . ')';
+                            }
+                        }
+                    }
+                }
+                // @codeCoverageIgnoreEnd
+                $r->setValue($e, $trace);
+            }
+        );
+
+        return $deferred->promise();
+    }
+
+    /**
+     * Internal helper used to handle the communication with the SOCKS server
+     *
+     * @param ConnectionInterface $stream
+     * @param string              $host
+     * @param int                 $port
+     * @param Deferred            $deferred
+     * @param string              $uri
+     * @return void
+     * @internal
+     */
+    public function handleConnectedSocks(ConnectionInterface $stream, $host, $port, Deferred $deferred, $uri)
+    {
+        $reader = new StreamReader();
+        $stream->on('data', array($reader, 'write'));
+
+        $stream->on('error', $onError = function (Exception $e) use ($deferred, $uri) {
+            $deferred->reject(new RuntimeException(
+                'Connection to ' . $uri . ' failed because connection to proxy caused a stream error (EIO)',
+                defined('SOCKET_EIO') ? SOCKET_EIO : 5, $e)
+            );
+        });
+
+        $stream->on('close', $onClose = function () use ($deferred, $uri) {
+            $deferred->reject(new RuntimeException(
+                'Connection to ' . $uri . ' failed because connection to proxy was lost while waiting for response from proxy (ECONNRESET)',
+                defined('SOCKET_ECONNRESET') ? SOCKET_ECONNRESET : 104)
+            );
+        });
+
+        if ($this->protocolVersion === 5) {
+            $promise = $this->handleSocks5($stream, $host, $port, $reader, $uri);
+        } else {
+            $promise = $this->handleSocks4($stream, $host, $port, $reader, $uri);
+        }
+
+        $promise->then(function () use ($deferred, $stream, $reader, $onError, $onClose) {
+            $stream->removeListener('data', array($reader, 'write'));
+            $stream->removeListener('error', $onError);
+            $stream->removeListener('close', $onClose);
+
+            $deferred->resolve($stream);
+        }, function (Exception $error) use ($deferred, $stream, $uri) {
+            // pass custom RuntimeException through as-is, otherwise wrap in protocol error
+            if (!$error instanceof RuntimeException) {
+                $error = new RuntimeException(
+                    'Connection to ' . $uri . ' failed because proxy returned invalid response (EBADMSG)',
+                    defined('SOCKET_EBADMSG') ? SOCKET_EBADMSG: 71,
+                    $error
+                );
+            }
+
+            $deferred->reject($error);
+            $stream->close();
+        });
+    }
+
+    private function handleSocks4(ConnectionInterface $stream, $host, $port, StreamReader $reader, $uri)
+    {
+        // do not resolve hostname. only try to convert to IP
+        $ip = ip2long($host);
+
+        // send IP or (0.0.0.1) if invalid
+        $data = pack('C2nNC', 0x04, 0x01, $port, $ip === false ? 1 : $ip, 0x00);
+
+        if ($ip === false) {
+            // host is not a valid IP => send along hostname (SOCKS4a)
+            $data .= $host . pack('C', 0x00);
+        }
+
+        $stream->write($data);
+
+        return $reader->readBinary(array(
+            'null'   => 'C',
+            'status' => 'C',
+            'port'   => 'n',
+            'ip'     => 'N'
+        ))->then(function ($data) use ($uri) {
+            if ($data['null'] !== 0x00) {
+                throw new Exception('Invalid SOCKS response');
+            }
+            if ($data['status'] !== 0x5a) {
+                throw new RuntimeException(
+                    'Connection to ' . $uri . ' failed because proxy refused connection with error code ' . sprintf('0x%02X', $data['status']) . ' (ECONNREFUSED)',
+                    defined('SOCKET_ECONNREFUSED') ? SOCKET_ECONNREFUSED : 111
+                );
+            }
+        });
+    }
+
+    private function handleSocks5(ConnectionInterface $stream, $host, $port, StreamReader $reader, $uri)
+    {
+        // protocol version 5
+        $data = pack('C', 0x05);
+
+        $auth = $this->auth;
+        if ($auth === null) {
+            // one method, no authentication
+            $data .= pack('C2', 0x01, 0x00);
+        } else {
+            // two methods, username/password and no authentication
+            $data .= pack('C3', 0x02, 0x02, 0x00);
+        }
+        $stream->write($data);
+
+        $that = $this;
+
+        return $reader->readBinary(array(
+            'version' => 'C',
+            'method'  => 'C'
+        ))->then(function ($data) use ($auth, $stream, $reader, $uri) {
+            if ($data['version'] !== 0x05) {
+                throw new Exception('Version/Protocol mismatch');
+            }
+
+            if ($data['method'] === 0x02 && $auth !== null) {
+                // username/password authentication requested and provided
+                $stream->write($auth);
+
+                return $reader->readBinary(array(
+                    'version' => 'C',
+                    'status'  => 'C'
+                ))->then(function ($data) use ($uri) {
+                    if ($data['version'] !== 0x01 || $data['status'] !== 0x00) {
+                        throw new RuntimeException(
+                            'Connection to ' . $uri . ' failed because proxy denied access with given authentication details (EACCES)',
+                            defined('SOCKET_EACCES') ? SOCKET_EACCES : 13
+                        );
+                    }
+                });
+            } else if ($data['method'] !== 0x00) {
+                // any other method than "no authentication"
+                throw new RuntimeException(
+                    'Connection to ' . $uri . ' failed because proxy denied access due to unsupported authentication method (EACCES)',
+                    defined('SOCKET_EACCES') ? SOCKET_EACCES : 13
+                );
+            }
+        })->then(function () use ($stream, $reader, $host, $port) {
+            // do not resolve hostname. only try to convert to (binary/packed) IP
+            $ip = @inet_pton($host);
+
+            $data = pack('C3', 0x05, 0x01, 0x00);
+            if ($ip === false) {
+                // not an IP, send as hostname
+                $data .= pack('C2', 0x03, strlen($host)) . $host;
+            } else {
+                // send as IPv4 / IPv6
+                $data .= pack('C', (strpos($host, ':') === false) ? 0x01 : 0x04) . $ip;
+            }
+            $data .= pack('n', $port);
+
+            $stream->write($data);
+
+            return $reader->readBinary(array(
+                'version' => 'C',
+                'status'  => 'C',
+                'null'    => 'C',
+                'type'    => 'C'
+            ));
+        })->then(function ($data) use ($reader, $uri) {
+            if ($data['version'] !== 0x05 || $data['null'] !== 0x00) {
+                throw new Exception('Invalid SOCKS response');
+            }
+            if ($data['status'] !== 0x00) {
+                // map limited list of SOCKS error codes to common socket error conditions
+                // @link https://tools.ietf.org/html/rfc1928#section-6
+                if ($data['status'] === Server::ERROR_GENERAL) {
+                    throw new RuntimeException(
+                        'Connection to ' . $uri . ' failed because proxy refused connection with general server failure (ECONNREFUSED)',
+                        defined('SOCKET_ECONNREFUSED') ? SOCKET_ECONNREFUSED : 111
+                    );
+                } elseif ($data['status'] === Server::ERROR_NOT_ALLOWED_BY_RULESET) {
+                    throw new RuntimeException(
+                        'Connection to ' . $uri . ' failed because proxy denied access due to ruleset (EACCES)',
+                        defined('SOCKET_EACCES') ? SOCKET_EACCES : 13
+                    );
+                } elseif ($data['status'] === Server::ERROR_NETWORK_UNREACHABLE) {
+                    throw new RuntimeException(
+                        'Connection to ' . $uri . ' failed because proxy reported network unreachable (ENETUNREACH)',
+                        defined('SOCKET_ENETUNREACH') ? SOCKET_ENETUNREACH : 101
+                    );
+                } elseif ($data['status'] === Server::ERROR_HOST_UNREACHABLE) {
+                    throw new RuntimeException(
+                        'Connection to ' . $uri . ' failed because proxy reported host unreachable (EHOSTUNREACH)',
+                        defined('SOCKET_EHOSTUNREACH') ? SOCKET_EHOSTUNREACH : 113
+                    );
+                } elseif ($data['status'] === Server::ERROR_CONNECTION_REFUSED) {
+                    throw new RuntimeException(
+                        'Connection to ' . $uri . ' failed because proxy reported connection refused (ECONNREFUSED)',
+                        defined('SOCKET_ECONNREFUSED') ? SOCKET_ECONNREFUSED : 111
+                    );
+                } elseif ($data['status'] === Server::ERROR_TTL) {
+                    throw new RuntimeException(
+                        'Connection to ' . $uri . ' failed because proxy reported TTL/timeout expired (ETIMEDOUT)',
+                        defined('SOCKET_ETIMEDOUT') ? SOCKET_ETIMEDOUT : 110
+                    );
+                } elseif ($data['status'] === Server::ERROR_COMMAND_UNSUPPORTED) {
+                    throw new RuntimeException(
+                        'Connection to ' . $uri . ' failed because proxy does not support the CONNECT command (EPROTO)',
+                        defined('SOCKET_EPROTO') ? SOCKET_EPROTO : 71
+                    );
+                } elseif ($data['status'] === Server::ERROR_ADDRESS_UNSUPPORTED) {
+                    throw new RuntimeException(
+                        'Connection to ' . $uri . ' failed because proxy does not support this address type (EPROTO)',
+                        defined('SOCKET_EPROTO') ? SOCKET_EPROTO : 71
+                    );
+                }
+
+                throw new RuntimeException(
+                    'Connection to ' . $uri . ' failed because proxy server refused connection with unknown error code ' . sprintf('0x%02X', $data['status']) . ' (ECONNREFUSED)',
+                    defined('SOCKET_ECONNREFUSED') ? SOCKET_ECONNREFUSED : 111
+                );
+            }
+            if ($data['type'] === 0x01) {
+                // IPv4 address => skip IP and port
+                return $reader->readLength(6);
+            } elseif ($data['type'] === 0x03) {
+                // domain name => read domain name length
+                return $reader->readBinary(array(
+                    'length' => 'C'
+                ))->then(function ($data) use ($reader) {
+                    // skip domain name and port
+                    return $reader->readLength($data['length'] + 2);
+                });
+            } elseif ($data['type'] === 0x04) {
+                // IPv6 address => skip IP and port
+                return $reader->readLength(18);
+            } else {
+                throw new Exception('Invalid SOCKS reponse: Invalid address type');
+            }
+        });
+    }
+}
diff --git a/vendor/clue/socks-react/src/Server.php b/vendor/clue/socks-react/src/Server.php
new file mode 100644
index 0000000..2405f3e
--- /dev/null
+++ b/vendor/clue/socks-react/src/Server.php
@@ -0,0 +1,399 @@
+<?php
+
+namespace Clue\React\Socks;
+
+use React\Socket\ServerInterface;
+use React\Promise\PromiseInterface;
+use React\Socket\ConnectorInterface;
+use React\Socket\Connector;
+use React\Socket\ConnectionInterface;
+use React\EventLoop\Loop;
+use React\EventLoop\LoopInterface;
+use \UnexpectedValueException;
+use \InvalidArgumentException;
+use \Exception;
+use React\Promise\Timer\TimeoutException;
+
+final class Server
+{
+    // the following error codes are only used for SOCKS5 only
+    /** @internal */
+    const ERROR_GENERAL = 0x01;
+    /** @internal */
+    const ERROR_NOT_ALLOWED_BY_RULESET = 0x02;
+    /** @internal */
+    const ERROR_NETWORK_UNREACHABLE = 0x03;
+    /** @internal */
+    const ERROR_HOST_UNREACHABLE = 0x04;
+    /** @internal */
+    const ERROR_CONNECTION_REFUSED = 0x05;
+    /** @internal */
+    const ERROR_TTL = 0x06;
+    /** @internal */
+    const ERROR_COMMAND_UNSUPPORTED = 0x07;
+    /** @internal */
+    const ERROR_ADDRESS_UNSUPPORTED = 0x08;
+
+    /** @var LoopInterface */
+    private $loop;
+
+    /** @var ConnectorInterface */
+    private $connector;
+
+    /**
+     * @var null|callable
+     */
+    private $auth;
+
+    /**
+     *
+     * This class takes an optional `LoopInterface|null $loop` parameter that can be used to
+     * pass the event loop instance to use for this object. You can use a `null` value
+     * here in order to use the [default loop](https://github.com/reactphp/event-loop#loop).
+     * This value SHOULD NOT be given unless you're sure you want to explicitly use a
+     * given event loop instance.
+     *
+     * @param ?LoopInterface      $loop
+     * @param ?ConnectorInterface $connector
+     * @param null|array|callable $auth
+     */
+    public function __construct(LoopInterface $loop = null, ConnectorInterface $connector = null, $auth = null)
+    {
+        if (\is_array($auth)) {
+            // wrap authentication array in authentication callback
+            $this->auth = function ($username, $password) use ($auth) {
+                return \React\Promise\resolve(
+                    isset($auth[$username]) && (string)$auth[$username] === $password
+                );
+            };
+        } elseif (\is_callable($auth)) {
+            // wrap authentication callback in order to cast its return value to a promise
+            $this->auth = function($username, $password, $remote) use ($auth) {
+                return  \React\Promise\resolve(
+                    \call_user_func($auth, $username, $password, $remote)
+                );
+            };
+        } elseif ($auth !== null) {
+            throw new \InvalidArgumentException('Invalid authenticator given');
+        }
+
+        $this->loop = $loop ?: Loop::get();
+        $this->connector = $connector ?: new Connector(array(), $this->loop);
+    }
+
+    /**
+     * @param ServerInterface $socket
+     * @return void
+     */
+    public function listen(ServerInterface $socket)
+    {
+        $that = $this;
+        $socket->on('connection', function ($connection) use ($that) {
+            $that->onConnection($connection);
+        });
+    }
+
+    /** @internal */
+    public function onConnection(ConnectionInterface $connection)
+    {
+        $that = $this;
+        $handling = $this->handleSocks($connection)->then(null, function () use ($connection, $that) {
+            // SOCKS failed => close connection
+            $that->endConnection($connection);
+        });
+
+        $connection->on('close', function () use ($handling) {
+            $handling->cancel();
+        });
+    }
+
+    /**
+     * [internal] gracefully shutdown connection by flushing all remaining data and closing stream
+     *
+     * @internal
+     */
+    public function endConnection(ConnectionInterface $stream)
+    {
+        $tid = true;
+        $loop = $this->loop;
+
+        // cancel below timer in case connection is closed in time
+        $stream->once('close', function () use (&$tid, $loop) {
+            // close event called before the timer was set up, so everything is okay
+            if ($tid === true) {
+                // make sure to not start a useless timer
+                $tid = false;
+            } else {
+                $loop->cancelTimer($tid);
+            }
+        });
+
+        // shut down connection by pausing input data, flushing outgoing buffer and then exit
+        $stream->pause();
+        $stream->end();
+
+        // check if connection is not already closed
+        if ($tid === true) {
+            // fall back to forcefully close connection in 3 seconds if buffer can not be flushed
+            $tid = $loop->addTimer(3.0, array($stream,'close'));
+        }
+    }
+
+    private function handleSocks(ConnectionInterface $stream)
+    {
+        $reader = new StreamReader();
+        $stream->on('data', array($reader, 'write'));
+
+        $that = $this;
+        $auth = $this->auth;
+
+        return $reader->readByte()->then(function ($version) use ($stream, $that, $auth, $reader){
+            if ($version === 0x04) {
+                if ($auth !== null) {
+                    throw new UnexpectedValueException('SOCKS4 not allowed because authentication is required');
+                }
+                return $that->handleSocks4($stream, $reader);
+            } else if ($version === 0x05) {
+                return $that->handleSocks5($stream, $auth, $reader);
+            }
+            throw new UnexpectedValueException('Unexpected/unknown version number');
+        });
+    }
+
+    /** @internal */
+    public function handleSocks4(ConnectionInterface $stream, StreamReader $reader)
+    {
+        $remote = $stream->getRemoteAddress();
+        if ($remote !== null) {
+            // remove transport scheme and prefix socks4:// instead
+            $secure = strpos($remote, 'tls://') === 0;
+            if (($pos = strpos($remote, '://')) !== false) {
+                $remote = substr($remote, $pos + 3);
+            }
+            $remote = 'socks4' . ($secure ? 's' : '') . '://' . $remote;
+        }
+
+        $that = $this;
+        return $reader->readByteAssert(0x01)->then(function () use ($reader) {
+            return $reader->readBinary(array(
+                'port'   => 'n',
+                'ipLong' => 'N',
+                'null'   => 'C'
+            ));
+        })->then(function ($data) use ($reader, $remote) {
+            if ($data['null'] !== 0x00) {
+                throw new Exception('Not a null byte');
+            }
+            if ($data['ipLong'] === 0) {
+                throw new Exception('Invalid IP');
+            }
+            if ($data['port'] === 0) {
+                throw new Exception('Invalid port');
+            }
+            if ($data['ipLong'] < 256) {
+                // invalid IP => probably a SOCKS4a request which appends the hostname
+                return $reader->readStringNull()->then(function ($string) use ($data, $remote){
+                    return array($string, $data['port'], $remote);
+                });
+            } else {
+                $ip = long2ip($data['ipLong']);
+                return array($ip, $data['port'], $remote);
+            }
+        })->then(function ($target) use ($stream, $that) {
+            return $that->connectTarget($stream, $target)->then(function (ConnectionInterface $remote) use ($stream){
+                $stream->write(pack('C8', 0x00, 0x5a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00));
+
+                return $remote;
+            }, function($error) use ($stream){
+                $stream->end(pack('C8', 0x00, 0x5b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00));
+
+                throw $error;
+            });
+        }, function($error) {
+            throw new UnexpectedValueException('SOCKS4 protocol error',0,$error);
+        });
+    }
+
+    /** @internal */
+    public function handleSocks5(ConnectionInterface $stream, $auth, StreamReader $reader)
+    {
+        $remote = $stream->getRemoteAddress();
+        if ($remote !== null) {
+            // remove transport scheme and prefix socks5:// instead
+            $secure = strpos($remote, 'tls://') === 0;
+            if (($pos = strpos($remote, '://')) !== false) {
+                $remote = substr($remote, $pos + 3);
+            }
+            $remote = 'socks' . ($secure ? 's' : '') . '://' . $remote;
+        }
+
+        $that = $this;
+        return $reader->readByte()->then(function ($num) use ($reader) {
+            // $num different authentication mechanisms offered
+            return $reader->readLength($num);
+        })->then(function ($methods) use ($reader, $stream, $auth, &$remote) {
+            if ($auth === null && strpos($methods,"\x00") !== false) {
+                // accept "no authentication"
+                $stream->write(pack('C2', 0x05, 0x00));
+
+                return 0x00;
+            } else if ($auth !== null && strpos($methods,"\x02") !== false) {
+                // username/password authentication (RFC 1929) sub negotiation
+                $stream->write(pack('C2', 0x05, 0x02));
+                return $reader->readByteAssert(0x01)->then(function () use ($reader) {
+                    return $reader->readByte();
+                })->then(function ($length) use ($reader) {
+                    return $reader->readLength($length);
+                })->then(function ($username) use ($reader, $auth, $stream, &$remote) {
+                    return $reader->readByte()->then(function ($length) use ($reader) {
+                        return $reader->readLength($length);
+                    })->then(function ($password) use ($username, $auth, $stream, &$remote) {
+                        // username and password given => authenticate
+
+                        // prefix username/password to remote URI
+                        if ($remote !== null) {
+                            $remote = str_replace('://', '://' . rawurlencode($username) . ':' . rawurlencode($password) . '@', $remote);
+                        }
+
+                        return $auth($username, $password, $remote)->then(function ($authenticated) use ($stream) {
+                            if ($authenticated) {
+                                // accept auth
+                                $stream->write(pack('C2', 0x01, 0x00));
+                            } else {
+                                // reject auth => send any code but 0x00
+                                $stream->end(pack('C2', 0x01, 0xFF));
+                                throw new UnexpectedValueException('Authentication denied');
+                            }
+                        }, function ($e) use ($stream) {
+                            // reject failed authentication => send any code but 0x00
+                            $stream->end(pack('C2', 0x01, 0xFF));
+                            throw new UnexpectedValueException('Authentication error', 0, $e);
+                        });
+                    });
+                });
+            } else {
+                // reject all offered authentication methods
+                $stream->write(pack('C2', 0x05, 0xFF));
+                throw new UnexpectedValueException('No acceptable authentication mechanism found');
+            }
+        })->then(function ($method) use ($reader) {
+            return $reader->readBinary(array(
+                'version' => 'C',
+                'command' => 'C',
+                'null'    => 'C',
+                'type'    => 'C'
+            ));
+        })->then(function ($data) use ($reader) {
+            if ($data['version'] !== 0x05) {
+                throw new UnexpectedValueException('Invalid SOCKS version');
+            }
+            if ($data['command'] !== 0x01) {
+                throw new UnexpectedValueException('Only CONNECT requests supported', Server::ERROR_COMMAND_UNSUPPORTED);
+            }
+//             if ($data['null'] !== 0x00) {
+//                 throw new UnexpectedValueException('Reserved byte has to be NULL');
+//             }
+            if ($data['type'] === 0x03) {
+                // target hostname string
+                return $reader->readByte()->then(function ($len) use ($reader) {
+                    return $reader->readLength($len);
+                });
+            } else if ($data['type'] === 0x01) {
+                // target IPv4
+                return $reader->readLength(4)->then(function ($addr) {
+                    return inet_ntop($addr);
+                });
+            } else if ($data['type'] === 0x04) {
+                // target IPv6
+                return $reader->readLength(16)->then(function ($addr) {
+                    return inet_ntop($addr);
+                });
+            } else {
+                throw new UnexpectedValueException('Invalid address type', Server::ERROR_ADDRESS_UNSUPPORTED);
+            }
+        })->then(function ($host) use ($reader, &$remote) {
+            return $reader->readBinary(array('port'=>'n'))->then(function ($data) use ($host, &$remote) {
+                return array($host, $data['port'], $remote);
+            });
+        })->then(function ($target) use ($that, $stream) {
+            return $that->connectTarget($stream, $target);
+        }, function($error) use ($stream) {
+            throw new UnexpectedValueException('SOCKS5 protocol error', $error->getCode(), $error);
+        })->then(function (ConnectionInterface $remote) use ($stream) {
+            $stream->write(pack('C4Nn', 0x05, 0x00, 0x00, 0x01, 0, 0));
+
+            return $remote;
+        }, function(Exception $error) use ($stream){
+            $stream->write(pack('C4Nn', 0x05, $error->getCode() === 0 ? Server::ERROR_GENERAL : $error->getCode(), 0x00, 0x01, 0, 0));
+
+            throw $error;
+        });
+    }
+
+    /** @internal */
+    public function connectTarget(ConnectionInterface $stream, array $target)
+    {
+        $uri = $target[0];
+        if (strpos($uri, ':') !== false) {
+            $uri = '[' . $uri . ']';
+        }
+        $uri .= ':' . $target[1];
+
+        // validate URI so a string hostname can not pass excessive URI parts
+        $parts = parse_url('tcp://' . $uri);
+        if (!$parts || !isset($parts['scheme'], $parts['host'], $parts['port']) || count($parts) !== 3) {
+            return \React\Promise\reject(new InvalidArgumentException('Invalid target URI given'));
+        }
+
+        if (isset($target[2])) {
+            $uri .= '?source=' . rawurlencode($target[2]);
+        }
+
+        $that = $this;
+        $connecting = $this->connector->connect($uri);
+
+        $stream->on('close', function () use ($connecting) {
+            $connecting->cancel();
+        });
+
+        return $connecting->then(function (ConnectionInterface $remote) use ($stream, $that) {
+            $stream->pipe($remote, array('end'=>false));
+            $remote->pipe($stream, array('end'=>false));
+
+            // remote end closes connection => stop reading from local end, try to flush buffer to local and disconnect local
+            $remote->on('end', function() use ($stream, $that) {
+                $that->endConnection($stream);
+            });
+
+            // local end closes connection => stop reading from remote end, try to flush buffer to remote and disconnect remote
+            $stream->on('end', function() use ($remote, $that) {
+                $that->endConnection($remote);
+            });
+
+            // set bigger buffer size of 100k to improve performance
+            $stream->bufferSize = $remote->bufferSize = 100 * 1024 * 1024;
+
+            return $remote;
+        }, function(Exception $error) {
+            // default to general/unknown error
+            $code = Server::ERROR_GENERAL;
+
+            // map common socket error conditions to limited list of SOCKS error codes
+            if ((defined('SOCKET_EACCES') && $error->getCode() === SOCKET_EACCES) || $error->getCode() === 13) {
+                $code = Server::ERROR_NOT_ALLOWED_BY_RULESET;
+            } elseif ((defined('SOCKET_EHOSTUNREACH') && $error->getCode() === SOCKET_EHOSTUNREACH) || $error->getCode() === 113) {
+                $code = Server::ERROR_HOST_UNREACHABLE;
+            } elseif ((defined('SOCKET_ENETUNREACH') && $error->getCode() === SOCKET_ENETUNREACH) || $error->getCode() === 101) {
+                $code = Server::ERROR_NETWORK_UNREACHABLE;
+            } elseif ((defined('SOCKET_ECONNREFUSED') && $error->getCode() === SOCKET_ECONNREFUSED) || $error->getCode() === 111 || $error->getMessage() === 'Connection refused') {
+                // Socket component does not currently assign an error code for this, so we have to resort to checking the exception message
+                $code = Server::ERROR_CONNECTION_REFUSED;
+            } elseif ((defined('SOCKET_ETIMEDOUT') && $error->getCode() === SOCKET_ETIMEDOUT) || $error->getCode() === 110 || $error instanceof TimeoutException) {
+                // Socket component does not currently assign an error code for this, but we can rely on the TimeoutException
+                $code = Server::ERROR_TTL;
+            }
+
+            throw new UnexpectedValueException('Unable to connect to remote target', $code, $error);
+        });
+    }
+}
diff --git a/vendor/clue/socks-react/src/StreamReader.php b/vendor/clue/socks-react/src/StreamReader.php
new file mode 100644
index 0000000..f01d252
--- /dev/null
+++ b/vendor/clue/socks-react/src/StreamReader.php
@@ -0,0 +1,149 @@
+<?php
+
+namespace Clue\React\Socks;
+
+use React\Promise\Deferred;
+use \InvalidArgumentException;
+use \UnexpectedValueException;
+
+/**
+ * @internal
+ */
+final class StreamReader
+{
+    const RET_DONE = true;
+    const RET_INCOMPLETE = null;
+
+    private $buffer = '';
+    private $queue = array();
+
+    public function write($data)
+    {
+        $this->buffer .= $data;
+
+        do {
+            $current = reset($this->queue);
+
+            if ($current === false) {
+                break;
+            }
+
+            /* @var $current Closure */
+
+            $ret = $current($this->buffer);
+
+            if ($ret === self::RET_INCOMPLETE) {
+                // current is incomplete, so wait for further data to arrive
+                break;
+            } else {
+                // current is done, remove from list and continue with next
+                array_shift($this->queue);
+            }
+        } while (true);
+    }
+
+    public function readBinary($structure)
+    {
+        $length = 0;
+        $unpack = '';
+        foreach ($structure as $name=>$format) {
+            if ($length !== 0) {
+                $unpack .= '/';
+            }
+            $unpack .= $format . $name;
+
+            if ($format === 'C') {
+                ++$length;
+            } else if ($format === 'n') {
+                $length += 2;
+            } else if ($format === 'N') {
+                $length += 4;
+            } else {
+                throw new InvalidArgumentException('Invalid format given');
+            }
+        }
+
+        return $this->readLength($length)->then(function ($response) use ($unpack) {
+            return unpack($unpack, $response);
+        });
+    }
+
+    public function readLength($bytes)
+    {
+        $deferred = new Deferred();
+
+        $this->readBufferCallback(function (&$buffer) use ($bytes, $deferred) {
+            if (strlen($buffer) >= $bytes) {
+                $deferred->resolve((string)substr($buffer, 0, $bytes));
+                $buffer = (string)substr($buffer, $bytes);
+
+                return StreamReader::RET_DONE;
+            }
+        });
+
+        return $deferred->promise();
+    }
+
+    public function readByte()
+    {
+        return $this->readBinary(array(
+            'byte' => 'C'
+        ))->then(function ($data) {
+            return $data['byte'];
+        });
+    }
+
+    public function readByteAssert($expect)
+    {
+        return $this->readByte()->then(function ($byte) use ($expect) {
+            if ($byte !== $expect) {
+                throw new UnexpectedValueException('Unexpected byte encountered');
+            }
+            return $byte;
+        });
+    }
+
+    public function readStringNull()
+    {
+        $deferred = new Deferred();
+        $string = '';
+
+        $that = $this;
+        $readOne = function () use (&$readOne, $that, $deferred, &$string) {
+            $that->readByte()->then(function ($byte) use ($deferred, &$string, $readOne) {
+                if ($byte === 0x00) {
+                    $deferred->resolve($string);
+                } else {
+                    $string .= chr($byte);
+                    $readOne();
+                }
+            });
+        };
+        $readOne();
+
+        return $deferred->promise();
+    }
+
+    public function readBufferCallback(/* callable */ $callable)
+    {
+        if (!is_callable($callable)) {
+            throw new InvalidArgumentException('Given function must be callable');
+        }
+
+        if ($this->queue) {
+            $this->queue []= $callable;
+        } else {
+            $this->queue = array($callable);
+
+            if ($this->buffer !== '') {
+                // this is the first element in the queue and the buffer is filled => trigger write procedure
+                $this->write('');
+            }
+        }
+    }
+
+    public function getBuffer()
+    {
+        return $this->buffer;
+    }
+}
diff --git a/vendor/clue/stdio-react/LICENSE b/vendor/clue/stdio-react/LICENSE
new file mode 100644
index 0000000..da15612
--- /dev/null
+++ b/vendor/clue/stdio-react/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2013 Christian Lück
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/vendor/clue/stdio-react/composer.json b/vendor/clue/stdio-react/composer.json
new file mode 100644
index 0000000..0e86dcb
--- /dev/null
+++ b/vendor/clue/stdio-react/composer.json
@@ -0,0 +1,37 @@
+{
+    "name": "clue/stdio-react",
+    "description": "Async, event-driven console input & output (STDIN, STDOUT) for truly interactive CLI applications, built on top of ReactPHP",
+    "keywords": ["stdio", "stdin", "stdout", "interactive", "CLI", "readline", "autocomplete", "autocompletion", "history", "ReactPHP", "async"],
+    "homepage": "https://github.com/clue/reactphp-stdio",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Christian Lück",
+            "email": "christian@clue.engineering"
+        }
+    ],
+    "require": {
+        "php": ">=5.3",
+        "clue/term-react": "^1.0 || ^0.1.1",
+        "clue/utf8-react": "^1.0 || ^0.1",
+        "react/event-loop": "^1.2",
+        "react/stream": "^1.2"
+    },
+    "require-dev": {
+        "clue/arguments": "^2.0",
+        "clue/commander": "^1.2",
+        "phpunit/phpunit": "^9.3 || ^5.7 || ^4.8.35"
+    },
+    "suggest": {
+        "ext-mbstring": "Using ext-mbstring should provide slightly better performance for handling I/O"
+    },
+    "config": {
+        "sort-packages": true
+    },
+    "autoload": {
+        "psr-4": { "Clue\\React\\Stdio\\": "src/" }
+    },
+    "autoload-dev": {
+        "psr-4": { "Clue\\Tests\\React\\Stdio\\": "tests/" }
+    }
+}
diff --git a/vendor/clue/stdio-react/src/Readline.php b/vendor/clue/stdio-react/src/Readline.php
new file mode 100644
index 0000000..b75650e
--- /dev/null
+++ b/vendor/clue/stdio-react/src/Readline.php
@@ -0,0 +1,1017 @@
+<?php
+
+namespace Clue\React\Stdio;
+
+use Clue\React\Term\ControlCodeParser;
+use Clue\React\Utf8\Sequencer as Utf8Sequencer;
+use Evenement\EventEmitter;
+use Evenement\EventEmitterInterface;
+use React\Stream\ReadableStreamInterface;
+use React\Stream\Util;
+use React\Stream\WritableStreamInterface;
+
+/**
+ * @deprecated 2.3.0 Use `Stdio` instead
+ * @see Stdio
+ */
+class Readline extends EventEmitter implements ReadableStreamInterface
+{
+    private $prompt = '';
+    private $linebuffer = '';
+    private $linepos = 0;
+    private $echo = true;
+    private $move = true;
+    private $bell = true;
+    private $encoding = 'utf-8';
+
+    private $input;
+    private $output;
+    private $sequencer;
+    private $closed = false;
+
+    private $historyLines = array();
+    private $historyPosition = null;
+    private $historyUnsaved = null;
+    private $historyLimit = 500;
+
+    private $autocomplete = null;
+    private $autocompleteSuggestions = 8;
+
+    public function __construct(ReadableStreamInterface $input, WritableStreamInterface $output, EventEmitterInterface $base = null)
+    {
+        $this->input = $input;
+        $this->output = $output;
+
+        if (!$this->input->isReadable()) {
+            $this->close();
+            return;
+        }
+        // push input through control code parser
+        $parser = new ControlCodeParser($input);
+
+        $that = $this;
+        $codes = array(
+            "\n"   => 'onKeyEnter', // ^J
+            "\x7f" => 'onKeyBackspace', // ^?
+            "\t"   => 'onKeyTab', // ^I
+            "\x04" => 'handleEnd', // ^D
+
+            "\033[A" => 'onKeyUp',
+            "\033[B" => 'onKeyDown',
+            "\033[C" => 'onKeyRight',
+            "\033[D" => 'onKeyLeft',
+
+            "\033[1~" => 'onKeyHome',
+//          "\033[2~" => 'onKeyInsert',
+            "\033[3~" => 'onKeyDelete',
+            "\033[4~" => 'onKeyEnd',
+
+//          "\033[20~" => 'onKeyF10',
+        );
+        $decode = function ($code) use ($codes, $that, $base) {
+            // The user confirms input with enter key which should usually
+            // generate a NL (`\n`) character. Common terminals also seem to
+            // accept a CR (`\r`) character in place and handle this just like a
+            // NL. Similarly `ext-readline` uses different `icrnl` and `igncr`
+            // TTY settings on some platforms, so we also accept CR as an alias
+            // for NL here. This implies key binding for NL will also trigger.
+            if ($code === "\r") {
+                $code = "\n";
+            }
+
+            // forward compatibility: check if any key binding exists on base Stdio instance
+            if ($base !== null && $base->listeners($code)) {
+                $base->emit($code, array($code));
+                return;
+            }
+
+            // deprecated: check if any key binding exists on this Readline instance
+            if ($that->listeners($code)) {
+                $that->emit($code, array($code));
+                return;
+            }
+
+            if (isset($codes[$code])) {
+                $method = $codes[$code];
+                $that->$method($code);
+                return;
+            }
+        };
+
+        $parser->on('csi', $decode);
+        $parser->on('c0', $decode);
+
+        // push resulting data through utf8 sequencer
+        $utf8 = new Utf8Sequencer($parser);
+        $utf8->on('data', function ($data) use ($that, $base) {
+            $that->onFallback($data, $base);
+        });
+
+        // process all stream events (forwarded from input stream)
+        $utf8->on('end', array($this, 'handleEnd'));
+        $utf8->on('error', array($this, 'handleError'));
+        $utf8->on('close', array($this, 'close'));
+    }
+
+    /**
+     * prompt to prepend to input line
+     *
+     * Will redraw the current input prompt with the current input buffer.
+     *
+     * @param string $prompt
+     * @return self
+     * @uses self::redraw()
+     * @deprecated use Stdio::setPrompt() instead
+     */
+    public function setPrompt($prompt)
+    {
+        if ($prompt === $this->prompt) {
+            return $this;
+        }
+
+        $this->prompt = $prompt;
+
+        return $this->redraw();
+    }
+
+    /**
+     * returns the prompt to prepend to input line
+     *
+     * @return string
+     * @see self::setPrompt()
+     * @deprecated use Stdio::getPrompt() instead
+     */
+    public function getPrompt()
+    {
+        return $this->prompt;
+    }
+
+    /**
+     * sets whether/how to echo text input
+     *
+     * The default setting is `true`, which means that every character will be
+     * echo'ed as-is, i.e. you can see what you're typing.
+     * For example: Typing "test" shows "test".
+     *
+     * You can turn this off by supplying `false`, which means that *nothing*
+     * will be echo'ed while you're typing. This could be a good idea for
+     * password prompts. Note that this could be confusing for users, so using
+     * a character replacement as following is often preferred.
+     * For example: Typing "test" shows "" (nothing).
+     *
+     * Alternative, you can supply a single character replacement character
+     * that will be echo'ed for each character in the text input. This could
+     * be a good idea for password prompts, where an asterisk character ("*")
+     * is often used to indicate typing activity and password length.
+     * For example: Typing "test" shows "****" (with asterisk replacement)
+     *
+     * Changing this setting will redraw the current prompt and echo the current
+     * input buffer according to the new setting.
+     *
+     * @param boolean|string $echo echo can be turned on (boolean true) or off (boolean true), or you can supply a single character replacement string
+     * @return self
+     * @uses self::redraw()
+     * @deprecated use Stdio::setEcho() instead
+     */
+    public function setEcho($echo)
+    {
+        if ($echo === $this->echo) {
+            return $this;
+        }
+
+        $this->echo = $echo;
+
+        // only redraw if there is any input
+        if ($this->linebuffer !== '') {
+            $this->redraw();
+        }
+
+        return $this;
+    }
+
+    /**
+     * whether or not to support moving cursor left and right
+     *
+     * switching cursor support moves the cursor to the end of the current
+     * input buffer (if any).
+     *
+     * @param boolean $move
+     * @return self
+     * @uses self::redraw()
+     * @deprecated use Stdio::setMove() instead
+     */
+    public function setMove($move)
+    {
+        $this->move = !!$move;
+
+        return $this->moveCursorTo($this->strlen($this->linebuffer));
+    }
+
+    /**
+     * Gets current cursor position measured in number of text characters.
+     *
+     * Note that the number of text characters doesn't necessarily reflect the
+     * number of monospace cells occupied by the text characters. If you want
+     * to know the latter, use `self::getCursorCell()` instead.
+     *
+     * @return int
+     * @see self::getCursorCell() to get the position measured in monospace cells
+     * @see self::moveCursorTo() to move the cursor to a given character position
+     * @see self::moveCursorBy() to move the cursor by given number of characters
+     * @see self::setMove() to toggle whether the user can move the cursor position
+     * @deprecated use Stdio::getCursorPosition() instead
+     */
+    public function getCursorPosition()
+    {
+        return $this->linepos;
+    }
+
+    /**
+     * Gets current cursor position measured in monospace cells.
+     *
+     * Note that the cell position doesn't necessarily reflect the number of
+     * text characters. If you want to know the latter, use
+     * `self::getCursorPosition()` instead.
+     *
+     * Most "normal" characters occupy a single monospace cell, i.e. the ASCII
+     * sequence for "A" requires a single cell, as do most UTF-8 sequences
+     * like "Ä".
+     *
+     * However, there are a number of code points that do not require a cell
+     * (i.e. invisible surrogates) or require two cells (e.g. some asian glyphs).
+     *
+     * Also note that this takes the echo mode into account, i.e. the cursor is
+     * always at position zero if echo is off. If using a custom echo character
+     * (like asterisk), it will take its width into account instead of the actual
+     * input characters.
+     *
+     * @return int
+     * @see self::getCursorPosition() to get current cursor position measured in characters
+     * @see self::moveCursorTo() to move the cursor to a given character position
+     * @see self::moveCursorBy() to move the cursor by given number of characters
+     * @see self::setMove() to toggle whether the user can move the cursor position
+     * @see self::setEcho()
+     * @deprecated use Stdio::getCursorCell() instead
+     */
+    public function getCursorCell()
+    {
+        if ($this->echo === false) {
+            return 0;
+        }
+        if ($this->echo !== true) {
+            return $this->strwidth($this->echo) * $this->linepos;
+        }
+        return $this->strwidth($this->substr($this->linebuffer, 0, $this->linepos));
+    }
+
+    /**
+     * Moves cursor to right by $n chars (or left if $n is negative).
+     *
+     * Zero value or values out of range (exceeding current input buffer) are
+     * simply ignored.
+     *
+     * Will redraw() the readline only if the visible cell position changes,
+     * see `self::getCursorCell()` for more details.
+     *
+     * @param int $n
+     * @return self
+     * @uses self::moveCursorTo()
+     * @uses self::redraw()
+     * @deprecated use Stdio::moveCursorBy() instead
+     */
+    public function moveCursorBy($n)
+    {
+        return $this->moveCursorTo($this->linepos + $n);
+    }
+
+    /**
+     * Moves cursor to given position in current line buffer.
+     *
+     * Values out of range (exceeding current input buffer) are simply ignored.
+     *
+     * Will redraw() the readline only if the visible cell position changes,
+     * see `self::getCursorCell()` for more details.
+     *
+     * @param int $n
+     * @return self
+     * @uses self::redraw()
+     * @deprecated use Stdio::moveCursorTo() instead
+     */
+    public function moveCursorTo($n)
+    {
+        if ($n < 0 || $n === $this->linepos || $n > $this->strlen($this->linebuffer)) {
+            return $this;
+        }
+
+        $old = $this->getCursorCell();
+        $this->linepos = $n;
+
+        // only redraw if visible cell position change (implies cursor is actually visible)
+        if ($this->getCursorCell() !== $old) {
+            $this->redraw();
+        }
+
+        return $this;
+    }
+
+    /**
+     * Appends the given input to the current text input buffer at the current position
+     *
+     * This moves the cursor accordingly to the number of characters added.
+     *
+     * @param string $input
+     * @return self
+     * @uses self::redraw()
+     * @deprecated use Stdio::addInput() instead
+     */
+    public function addInput($input)
+    {
+        if ($input === '') {
+            return $this;
+        }
+
+        // read everything up until before current position
+        $pre  = $this->substr($this->linebuffer, 0, $this->linepos);
+        $post = $this->substr($this->linebuffer, $this->linepos);
+
+        $this->linebuffer = $pre . $input . $post;
+        $this->linepos += $this->strlen($input);
+
+        // only redraw if input should be echo'ed (i.e. is not hidden anyway)
+        if ($this->echo !== false) {
+            $this->redraw();
+        }
+
+        return $this;
+    }
+
+    /**
+     * set current text input buffer
+     *
+     * this moves the cursor to the end of the current
+     * input buffer (if any).
+     *
+     * @param string $input
+     * @return self
+     * @uses self::redraw()
+     * @deprecated use Stdio::setInput() instead
+     */
+    public function setInput($input)
+    {
+        if ($this->linebuffer === $input) {
+            return $this;
+        }
+
+        // remember old input length if echo replacement is used
+        $oldlen = (is_string($this->echo)) ? $this->strlen($this->linebuffer) : null;
+
+        $this->linebuffer = $input;
+        $this->linepos = $this->strlen($this->linebuffer);
+
+        // only redraw if input should be echo'ed (i.e. is not hidden anyway)
+        // and echo replacement is used, make sure the input length changes
+        if ($this->echo !== false && $this->linepos !== $oldlen) {
+            $this->redraw();
+        }
+
+        return $this;
+    }
+
+    /**
+     * get current text input buffer
+     *
+     * @return string
+     * @deprecated use Stdio::getInput() instead
+     */
+    public function getInput()
+    {
+        return $this->linebuffer;
+    }
+
+    /**
+     * Adds a new line to the (bottom position of the) history list
+     *
+     * @param string $line
+     * @return self
+     * @uses self::limitHistory() to make sure list does not exceed limits
+     * @deprecated use Stdio::addHistory() instead
+     */
+    public function addHistory($line)
+    {
+        $this->historyLines []= $line;
+
+        return $this->limitHistory($this->historyLimit);
+    }
+
+    /**
+     * Clears the complete history list
+     *
+     * @return self
+     * @deprecated use Stdio::clearHistory() instead
+     */
+    public function clearHistory()
+    {
+        $this->historyLines = array();
+        $this->historyPosition = null;
+
+        if ($this->historyUnsaved !== null) {
+            $this->setInput($this->historyUnsaved);
+            $this->historyUnsaved = null;
+        }
+
+        return $this;
+    }
+
+    /**
+     * Returns an array with all lines in the history
+     *
+     * @return string[]
+     * @deprecated use Stdio::listHistory() instead
+     */
+    public function listHistory()
+    {
+        return $this->historyLines;
+    }
+
+    /**
+     * Limits the history to a maximum of N entries and truncates the current history list accordingly
+     *
+     * @param int|null $limit
+     * @return self
+     * @deprecated use Stdio::limitHistory() instead
+     */
+    public function limitHistory($limit)
+    {
+        $this->historyLimit = $limit === null ? null : $limit;
+
+        // limit send and currently exceeded
+        if ($this->historyLimit !== null && isset($this->historyLines[$this->historyLimit])) {
+            // adjust position in history according to new position after applying limit
+            if ($this->historyPosition !== null) {
+                $this->historyPosition -= count($this->historyLines) - $this->historyLimit;
+
+                // current position will drop off from list => restore original
+                if ($this->historyPosition < 0) {
+                    $this->setInput($this->historyUnsaved);
+                    $this->historyPosition = null;
+                    $this->historyUnsaved = null;
+                }
+            }
+
+            $this->historyLines = array_slice($this->historyLines, -$this->historyLimit, $this->historyLimit);
+        }
+
+        return $this;
+    }
+
+    /**
+     * set autocompletion handler to use
+     *
+     * The autocomplete handler will be called whenever the user hits the TAB
+     * key.
+     *
+     * @param callable|null $autocomplete
+     * @return self
+     * @throws \InvalidArgumentException if the given callable is invalid
+     * @deprecated use Stdio::setAutocomplete() instead
+     */
+    public function setAutocomplete($autocomplete)
+    {
+        if ($autocomplete !== null && !is_callable($autocomplete)) {
+            throw new \InvalidArgumentException('Invalid autocomplete function given');
+        }
+
+        $this->autocomplete = $autocomplete;
+
+        return $this;
+    }
+
+    /**
+     * Whether or not to emit a audible/visible BELL signal when using a disabled function
+     *
+     * By default, this class will emit a BELL signal when using a disable function,
+     * such as using the <kbd>left</kbd> or <kbd>backspace</kbd> keys when
+     * already at the beginning of the line.
+     *
+     * Whether or not the BELL is audible/visible depends on the termin and its
+     * settings, i.e. some terminals may "beep" or flash the screen or emit a
+     * short vibration.
+     *
+     * @param bool $bell
+     * @return void
+     * @internal use Stdio::setBell() instead
+     */
+    public function setBell($bell)
+    {
+        $this->bell = (bool)$bell;
+    }
+
+    /**
+     * redraw the current input prompt
+     *
+     * Usually, there should be no need to call this method manually. It will
+     * be invoked automatically whenever we detect the readline input needs to
+     * be (re)written to the output.
+     *
+     * Clear the current line and draw the input prompt. If input echo is
+     * enabled, will also draw the current input buffer and move to the current
+     * input buffer position.
+     *
+     * @return self
+     * @internal
+     */
+    public function redraw()
+    {
+        // Erase characters from cursor to end of line and then redraw actual input
+        $this->output->write("\r\033[K" . $this->getDrawString());
+
+        return $this;
+    }
+
+    /**
+     * Returns the string that is used to draw the input prompt
+     *
+     * @return string
+     * @internal
+     */
+    public function getDrawString()
+    {
+        $output = $this->prompt;
+        if ($this->echo !== false) {
+            if ($this->echo === true) {
+                $buffer = $this->linebuffer;
+            } else {
+                $buffer = str_repeat($this->echo, $this->strlen($this->linebuffer));
+            }
+
+            // write output, then move back $reverse chars (by sending backspace)
+            $output .= $buffer . str_repeat("\x08", $this->strwidth($buffer) - $this->getCursorCell());
+        }
+
+        return $output;
+    }
+
+    /** @internal */
+    public function onKeyBackspace()
+    {
+        // left delete only if not at the beginning
+        if ($this->linepos === 0) {
+            $this->bell();
+        } else {
+            $this->deleteChar($this->linepos - 1);
+        }
+    }
+
+    /** @internal */
+    public function onKeyDelete()
+    {
+        // right delete only if not at the end
+        if ($this->isEol()) {
+            $this->bell();
+        } else {
+            $this->deleteChar($this->linepos);
+        }
+    }
+
+    /** @internal */
+    public function onKeyHome()
+    {
+        if ($this->move && $this->linepos !== 0) {
+            $this->moveCursorTo(0);
+        } else {
+            $this->bell();
+        }
+    }
+
+    /** @internal */
+    public function onKeyEnd()
+    {
+        if ($this->move && !$this->isEol()) {
+            $this->moveCursorTo($this->strlen($this->linebuffer));
+        } else {
+            $this->bell();
+        }
+    }
+
+    /** @internal */
+    public function onKeyTab()
+    {
+        if ($this->autocomplete === null) {
+            $this->bell();
+            return;
+        }
+
+        // current word prefix and offset for start of word in input buffer
+        // "echo foo|bar world" will return just "foo" with word offset 5
+        $word = $this->substr($this->linebuffer, 0, $this->linepos);
+        $start = 0;
+        $end = $this->linepos;
+
+        // buffer prefix and postfix for everything that will *not* be matched
+        // above example will return "echo " and "bar world"
+        $prefix = '';
+        $postfix = $this->substr($this->linebuffer, $this->linepos);
+
+        // skip everything before last space
+        $pos = strrpos($word, ' ');
+        if ($pos !== false) {
+            $prefix = (string)substr($word, 0, $pos + 1);
+            $word = (string)substr($word, $pos + 1);
+            $start = $this->strlen($prefix);
+        }
+
+        // skip double quote (") or single quote (') from argument
+        $quote = null;
+        if (isset($word[0]) && ($word[0] === '"' || $word[0] === '\'')) {
+            $quote = $word[0];
+            ++$start;
+            $prefix .= $word[0];
+            $word = (string)substr($word, 1);
+        }
+
+        // invoke autocomplete callback
+        $words = call_user_func($this->autocomplete, $word, $start, $end);
+
+        // return early if autocomplete does not return anything
+        if ($words === null) {
+            return;
+        }
+
+        // remove from list of possible words that do not start with $word or are duplicates
+        $words = array_unique($words);
+        if ($word !== '' && $words) {
+            $words = array_filter($words, function ($w) use ($word) {
+                return strpos($w, $word) === 0;
+            });
+        }
+
+        // return if neither of the possible words match
+        if (!$words) {
+            $this->bell();
+            return;
+        }
+
+        // search longest common prefix among all possible matches
+        $found = reset($words);
+        $all = count($words);
+        if ($all > 1) {
+            while ($found !== '') {
+                // count all words that start with $found
+                $matches = count(array_filter($words, function ($w) use ($found) {
+                    return strpos($w, $found) === 0;
+                }));
+
+                // ALL words match $found => common substring found
+                if ($all === $matches) {
+                    break;
+                }
+
+                // remove last letter from $found and try again
+                $found = $this->substr($found, 0, -1);
+            }
+
+            // found more than one possible match with this prefix => print options
+            if ($found === $word || $found === '') {
+                // limit number of possible matches
+                if (count($words) > $this->autocompleteSuggestions) {
+                    $more = count($words) - ($this->autocompleteSuggestions - 1);
+                    $words = array_slice($words, 0, $this->autocompleteSuggestions - 1);
+                    $words []= '(+' . $more . ' others)';
+                }
+
+                $this->output->write("\n" . implode('  ', $words) . "\n");
+                $this->redraw();
+
+                return;
+            }
+        }
+
+        if ($quote !== null && $all === 1 && (strpos($postfix, $quote) === false || strpos($postfix, $quote) > strpos($postfix, ' '))) {
+            // add closing quote if word started in quotes and postfix does not already contain closing quote before next space
+            $found .= $quote;
+        } elseif ($found === '') {
+            // add single quotes around empty match
+            $found = '\'\'';
+        }
+
+        if ($postfix === '' && $all === 1) {
+            // append single space after match unless there's a postfix or there are multiple completions
+            $found .= ' ';
+        }
+
+        // replace word in input with best match and adjust cursor
+        $this->linebuffer = $prefix . $found . $postfix;
+        $this->moveCursorBy($this->strlen($found) - $this->strlen($word));
+    }
+
+    /** @internal */
+    public function onKeyEnter()
+    {
+        if ($this->echo !== false) {
+            $this->output->write("\n");
+        }
+        $this->processLine("\n");
+    }
+
+    /** @internal */
+    public function onKeyLeft()
+    {
+        if ($this->move && $this->linepos !== 0) {
+            $this->moveCursorBy(-1);
+        } else {
+            $this->bell();
+        }
+    }
+
+    /** @internal */
+    public function onKeyRight()
+    {
+        if ($this->move && !$this->isEol()) {
+            $this->moveCursorBy(1);
+        } else {
+            $this->bell();
+        }
+    }
+
+    /** @internal */
+    public function onKeyUp()
+    {
+        // ignore if already at top or history is empty
+        if ($this->historyPosition === 0 || !$this->historyLines) {
+            $this->bell();
+            return;
+        }
+
+        if ($this->historyPosition === null) {
+            // first time up => move to last entry
+            $this->historyPosition = count($this->historyLines) - 1;
+            $this->historyUnsaved = $this->getInput();
+        } else {
+            // somewhere in the list => move by one
+            $this->historyPosition--;
+        }
+
+        $this->setInput($this->historyLines[$this->historyPosition]);
+    }
+
+    /** @internal */
+    public function onKeyDown()
+    {
+        // ignore if not currently cycling through history
+        if ($this->historyPosition === null) {
+            $this->bell();
+            return;
+        }
+
+        if (isset($this->historyLines[$this->historyPosition + 1])) {
+            // this is still a valid position => advance by one and apply
+            $this->historyPosition++;
+            $this->setInput($this->historyLines[$this->historyPosition]);
+        } else {
+            // moved beyond bottom => restore original unsaved input
+            $this->setInput($this->historyUnsaved);
+            $this->historyPosition = null;
+            $this->historyUnsaved = null;
+        }
+    }
+
+    /**
+     * Will be invoked for character(s) that could not otherwise be processed by the sequencer
+     *
+     * @internal
+     */
+    public function onFallback($chars, EventEmitterInterface $base = null)
+    {
+        // check if there's any special key binding for any of the chars
+        $buffer = '';
+        foreach ($this->strsplit($chars) as $char) {
+            // forward compatibility: check if any key binding exists on base Stdio instance
+            // deprecated: check if any key binding exists on this Readline instance
+            $emit = null;
+            if ($base !== null && $base->listeners($char)) {
+                $emit = $base;
+            } else if ($this->listeners($char)) {
+                $emit = $this;
+            }
+
+            if ($emit !== null) {
+                // special key binding for this character found
+                // process all characters before this one before invoking function
+                if ($buffer !== '') {
+                    $this->addInput($buffer);
+                    $buffer = '';
+                }
+                $emit->emit($char, array($char));
+            } else {
+                $buffer .= $char;
+            }
+        }
+
+        // process remaining input characters after last special key binding
+        if ($buffer !== '') {
+            $this->addInput($buffer);
+        }
+    }
+
+    /**
+     * delete a character at the given position
+     *
+     * Removing a character left to the current cursor will also move the cursor
+     * to the left.
+     *
+     * @param int $n
+     */
+    private function deleteChar($n)
+    {
+        // read everything up until before current position
+        $pre  = $this->substr($this->linebuffer, 0, $n);
+        $post = $this->substr($this->linebuffer, $n + 1);
+
+        $this->linebuffer = $pre . $post;
+
+        // move cursor one cell to the left if we're deleting in front of the cursor
+        if ($n < $this->linepos) {
+            --$this->linepos;
+        }
+
+        $this->redraw();
+    }
+
+    /**
+     * process the current line buffer, emit event and redraw empty line
+     *
+     * @uses self::setInput()
+     */
+    protected function processLine($eol)
+    {
+        // reset history cycle position
+        $this->historyPosition = null;
+        $this->historyUnsaved = null;
+
+        // store and reset/clear/redraw current input
+        $line = $this->linebuffer;
+        if ($line !== '') {
+            // the line is not empty, reset it (and implicitly redraw prompt)
+            $this->setInput('');
+        } elseif ($this->echo !== false) {
+            // explicitly redraw prompt after empty line
+            $this->redraw();
+        }
+
+        // process stored input buffer
+        $this->emit('data', array($line . $eol));
+    }
+
+    /**
+     * @param string $str
+     * @return int
+     * @codeCoverageIgnore
+     */
+    private function strlen($str)
+    {
+        // prefer mb_strlen() if available
+        if (function_exists('mb_strlen')) {
+            return mb_strlen($str, $this->encoding);
+        }
+
+        // otherwise replace all unicode chars with dots and count dots
+        return strlen(preg_replace('/./us', '.', $str));
+    }
+
+    /**
+     * @param string $str
+     * @param int    $start
+     * @param ?int   $len
+     * @return string
+     * @codeCoverageIgnore
+     */
+    private function substr($str, $start = 0, $len = null)
+    {
+        if ($len === null) {
+            $len = $this->strlen($str) - $start;
+        }
+
+        // prefer mb_substr() if available
+        if (function_exists('mb_substr')) {
+            return (string)mb_substr($str, $start, $len, $this->encoding);
+        }
+
+        // otherwise build array with all unicode chars and slice array
+        preg_match_all('/./us', $str, $matches);
+
+        return implode('', array_slice($matches[0], $start, $len));
+    }
+
+    /**
+     * @internal
+     * @param string $str
+     * @return int
+     * @codeCoverageIgnore
+     */
+    public function strwidth($str)
+    {
+        // prefer mb_strwidth() if available
+        if (function_exists('mb_strwidth')) {
+            return mb_strwidth($str, $this->encoding);
+        }
+
+        // otherwise replace each double-width unicode graphemes with two dots, all others with single dot and count number of dots
+        // mbstring's list of double-width graphemes is *very* long: https://3v4l.org/GEg3u
+        // let's use symfony's list from https://github.com/symfony/polyfill-mbstring/blob/e79d363049d1c2128f133a2667e4f4190904f7f4/Mbstring.php#L523
+        // which looks like they originally came from http://www.cl.cam.ac.uk/~mgk25/ucs/wcwidth.c
+        return strlen(preg_replace(
+            array(
+                '/[\x{1100}-\x{115F}\x{2329}\x{232A}\x{2E80}-\x{303E}\x{3040}-\x{A4CF}\x{AC00}-\x{D7A3}\x{F900}-\x{FAFF}\x{FE10}-\x{FE19}\x{FE30}-\x{FE6F}\x{FF00}-\x{FF60}\x{FFE0}-\x{FFE6}\x{20000}-\x{2FFFD}\x{30000}-\x{3FFFD}]/u',
+                '/./us',
+            ),
+            array(
+                '..',
+                '.',
+            ),
+            $str
+        ));
+    }
+
+    /**
+     * @param string $str
+     * @return string[]
+     */
+    private function strsplit($str)
+    {
+        return preg_split('//u', $str, -1, PREG_SPLIT_NO_EMPTY);
+    }
+
+    /**
+     * @return bool
+     */
+    private function isEol()
+    {
+        return $this->linepos === $this->strlen($this->linebuffer);
+    }
+
+    /**
+     * @return void
+     */
+    private function bell()
+    {
+        if ($this->bell) {
+            $this->output->write("\x07"); // BEL a.k.a. \a
+        }
+    }
+
+    /** @internal */
+    public function handleEnd()
+    {
+        if ($this->linebuffer !== '') {
+            $this->processLine('');
+        }
+
+        if (!$this->closed) {
+            $this->emit('end');
+            $this->close();
+        }
+    }
+
+    /** @internal */
+    public function handleError(\Exception $error)
+    {
+        $this->emit('error', array($error));
+        $this->close();
+    }
+
+    public function isReadable()
+    {
+        return !$this->closed && $this->input->isReadable();
+    }
+
+    public function pause()
+    {
+        $this->input->pause();
+    }
+
+    public function resume()
+    {
+        $this->input->resume();
+    }
+
+    public function pipe(WritableStreamInterface $dest, array $options = array())
+    {
+        Util::pipe($this, $dest, $options);
+
+        return $dest;
+    }
+
+    public function close()
+    {
+        if ($this->closed) {
+            return;
+        }
+
+        $this->closed = true;
+
+        $this->input->close();
+
+        $this->emit('close');
+        $this->removeAllListeners();
+    }
+}
diff --git a/vendor/clue/stdio-react/src/Stdio.php b/vendor/clue/stdio-react/src/Stdio.php
new file mode 100644
index 0000000..aff2959
--- /dev/null
+++ b/vendor/clue/stdio-react/src/Stdio.php
@@ -0,0 +1,630 @@
+<?php
+
+namespace Clue\React\Stdio;
+
+use Evenement\EventEmitter;
+use React\EventLoop\LoopInterface;
+use React\Stream\DuplexStreamInterface;
+use React\Stream\ReadableResourceStream;
+use React\Stream\ReadableStreamInterface;
+use React\Stream\Util;
+use React\Stream\WritableResourceStream;
+use React\Stream\WritableStreamInterface;
+
+class Stdio extends EventEmitter implements DuplexStreamInterface
+{
+    private $input;
+    private $output;
+    private $readline;
+
+    private $ending = false;
+    private $closed = false;
+    private $incompleteLine = '';
+    private $originalTtyMode = null;
+
+    /**
+     *
+     * This class takes an optional `LoopInterface|null $loop` parameter that can be used to
+     * pass the event loop instance to use for this object. You can use a `null` value
+     * here in order to use the [default loop](https://github.com/reactphp/event-loop#loop).
+     * This value SHOULD NOT be given unless you're sure you want to explicitly use a
+     * given event loop instance.
+     *
+     * @param ?LoopInterface           $loop
+     * @param ?ReadableStreamInterface $input
+     * @param ?WritableStreamInterface $output
+     * @param ?Readline                $readline
+     */
+    public function __construct(LoopInterface $loop = null, ReadableStreamInterface $input = null, WritableStreamInterface $output = null, Readline $readline = null)
+    {
+        if ($input === null) {
+            $input = $this->createStdin($loop); // @codeCoverageIgnore
+        }
+
+        if ($output === null) {
+            $output = $this->createStdout($loop); // @codeCoverageIgnore
+        }
+
+        if ($readline === null) {
+            $readline = new Readline($input, $output, $this);
+        }
+
+        $this->input = $input;
+        $this->output = $output;
+        $this->readline = $readline;
+
+        $that = $this;
+
+        // readline data emits a new line
+        $incomplete =& $this->incompleteLine;
+        $this->readline->on('data', function($line) use ($that, &$incomplete) {
+            // readline emits a new line on enter, so start with a blank line
+            $incomplete = '';
+            $that->emit('data', array($line));
+        });
+
+        // handle all input events (readline forwards all input events)
+        $this->readline->on('error', array($this, 'handleError'));
+        $this->readline->on('end', array($this, 'handleEnd'));
+        $this->readline->on('close', array($this, 'handleCloseInput'));
+
+        // handle all output events
+        $this->output->on('error', array($this, 'handleError'));
+        $this->output->on('close', array($this, 'handleCloseOutput'));
+    }
+
+    public function __destruct()
+    {
+        $this->restoreTtyMode();
+    }
+
+    public function pause()
+    {
+        $this->input->pause();
+    }
+
+    public function resume()
+    {
+        $this->input->resume();
+    }
+
+    public function isReadable()
+    {
+        return $this->input->isReadable();
+    }
+
+    public function isWritable()
+    {
+        return $this->output->isWritable();
+    }
+
+    public function pipe(WritableStreamInterface $dest, array $options = array())
+    {
+        Util::pipe($this, $dest, $options);
+
+        return $dest;
+    }
+
+    public function write($data)
+    {
+        // return false if already ended, return true if writing empty string
+        if ($this->ending || $data === '') {
+            return !$this->ending;
+        }
+
+        $out = $data;
+
+        $lastNewline = strrpos($data, "\n");
+
+        $restoreReadline = false;
+
+        if ($this->incompleteLine !== '') {
+            // the last write did not end with a newline => append to existing row
+
+            // move one line up and move cursor to last position before writing data
+            $out = "\033[A" . "\r\033[" . $this->width($this->incompleteLine) . "C" . $out;
+
+            // data contains a newline, so this will overwrite the readline prompt
+            if ($lastNewline !== false) {
+                // move cursor to beginning of readline prompt and clear line
+                // clearing is important because $data may not overwrite the whole line
+                $out = "\r\033[K" . $out;
+
+                // make sure to restore readline after this output
+                $restoreReadline = true;
+            }
+        } else {
+            // here, we're writing to a new line => overwrite readline prompt
+
+            // move cursor to beginning of readline prompt and clear line
+            $out = "\r\033[K" . $out;
+
+            // we always overwrite the readline prompt, so restore it on next line
+            $restoreReadline = true;
+        }
+
+        // following write will have have to append to this line if it does not end with a newline
+        $endsWithNewline = substr($data, -1) === "\n";
+
+        if ($endsWithNewline) {
+            // line ends with newline, so this is line is considered complete
+            $this->incompleteLine = '';
+        } else {
+            // always end data with newline in order to append readline on next line
+            $out .= "\n";
+
+            if ($lastNewline === false) {
+                // contains no newline at all, everything is incomplete
+                $this->incompleteLine .= $data;
+            } else {
+                // contains a newline, everything behind it is incomplete
+                $this->incompleteLine = (string)substr($data, $lastNewline + 1);
+            }
+        }
+
+        if ($restoreReadline) {
+            // write output and restore original readline prompt and line buffer
+            return $this->output->write($out . $this->readline->getDrawString());
+        } else {
+            // restore original cursor position in readline prompt
+            $pos = $this->width($this->readline->getPrompt()) + $this->readline->getCursorCell();
+            if ($pos !== 0) {
+                // we always start at beginning of line, move right by X
+                $out .= "\033[" . $pos . "C";
+            }
+
+            // write to actual output stream
+            return $this->output->write($out);
+        }
+    }
+
+    public function end($data = null)
+    {
+        if ($this->ending) {
+            return;
+        }
+
+        if ($data !== null) {
+            $this->write($data);
+        }
+
+        $this->ending = true;
+
+        // clear readline output, close input and end output
+        $this->readline->setInput('')->setPrompt('');
+        $this->input->close();
+        $this->output->end();
+    }
+
+    public function close()
+    {
+        if ($this->closed) {
+            return;
+        }
+
+        $this->ending = true;
+        $this->closed = true;
+
+        $this->input->close();
+        $this->output->close();
+
+        $this->emit('close');
+        $this->removeAllListeners();
+    }
+
+    /**
+     * @deprecated
+     * @return Readline
+     */
+    public function getReadline()
+    {
+        return $this->readline;
+    }
+
+
+    /**
+     * prompt to prepend to input line
+     *
+     * Will redraw the current input prompt with the current input buffer.
+     *
+     * @param string $prompt
+     * @return void
+     */
+    public function setPrompt($prompt)
+    {
+        $this->readline->setPrompt($prompt);
+    }
+
+    /**
+     * returns the prompt to prepend to input line
+     *
+     * @return string
+     * @see self::setPrompt()
+     */
+    public function getPrompt()
+    {
+        return $this->readline->getPrompt();
+    }
+
+    /**
+     * sets whether/how to echo text input
+     *
+     * The default setting is `true`, which means that every character will be
+     * echo'ed as-is, i.e. you can see what you're typing.
+     * For example: Typing "test" shows "test".
+     *
+     * You can turn this off by supplying `false`, which means that *nothing*
+     * will be echo'ed while you're typing. This could be a good idea for
+     * password prompts. Note that this could be confusing for users, so using
+     * a character replacement as following is often preferred.
+     * For example: Typing "test" shows "" (nothing).
+     *
+     * Alternative, you can supply a single character replacement character
+     * that will be echo'ed for each character in the text input. This could
+     * be a good idea for password prompts, where an asterisk character ("*")
+     * is often used to indicate typing activity and password length.
+     * For example: Typing "test" shows "****" (with asterisk replacement)
+     *
+     * Changing this setting will redraw the current prompt and echo the current
+     * input buffer according to the new setting.
+     *
+     * @param boolean|string $echo echo can be turned on (boolean true) or off (boolean true), or you can supply a single character replacement string
+     * @return void
+     */
+    public function setEcho($echo)
+    {
+        $this->readline->setEcho($echo);
+    }
+
+    /**
+     * whether or not to support moving cursor left and right
+     *
+     * switching cursor support moves the cursor to the end of the current
+     * input buffer (if any).
+     *
+     * @param boolean $move
+     * @return void
+     */
+    public function setMove($move)
+    {
+        $this->readline->setMove($move);
+    }
+
+    /**
+     * Gets current cursor position measured in number of text characters.
+     *
+     * Note that the number of text characters doesn't necessarily reflect the
+     * number of monospace cells occupied by the text characters. If you want
+     * to know the latter, use `self::getCursorCell()` instead.
+     *
+     * @return int
+     * @see self::getCursorCell() to get the position measured in monospace cells
+     * @see self::moveCursorTo() to move the cursor to a given character position
+     * @see self::moveCursorBy() to move the cursor by given number of characters
+     * @see self::setMove() to toggle whether the user can move the cursor position
+     */
+    public function getCursorPosition()
+    {
+        return $this->readline->getCursorPosition();
+    }
+
+    /**
+     * Gets current cursor position measured in monospace cells.
+     *
+     * Note that the cell position doesn't necessarily reflect the number of
+     * text characters. If you want to know the latter, use
+     * `self::getCursorPosition()` instead.
+     *
+     * Most "normal" characters occupy a single monospace cell, i.e. the ASCII
+     * sequence for "A" requires a single cell, as do most UTF-8 sequences
+     * like "Ä".
+     *
+     * However, there are a number of code points that do not require a cell
+     * (i.e. invisible surrogates) or require two cells (e.g. some asian glyphs).
+     *
+     * Also note that this takes the echo mode into account, i.e. the cursor is
+     * always at position zero if echo is off. If using a custom echo character
+     * (like asterisk), it will take its width into account instead of the actual
+     * input characters.
+     *
+     * @return int
+     * @see self::getCursorPosition() to get current cursor position measured in characters
+     * @see self::moveCursorTo() to move the cursor to a given character position
+     * @see self::moveCursorBy() to move the cursor by given number of characters
+     * @see self::setMove() to toggle whether the user can move the cursor position
+     * @see self::setEcho()
+     */
+    public function getCursorCell()
+    {
+        return $this->readline->getCursorCell();
+    }
+
+    /**
+     * Moves cursor to right by $n chars (or left if $n is negative).
+     *
+     * Zero value or values out of range (exceeding current input buffer) are
+     * simply ignored.
+     *
+     * Will redraw() the readline only if the visible cell position changes,
+     * see `self::getCursorCell()` for more details.
+     *
+     * @param int $n
+     * @return void
+     */
+    public function moveCursorBy($n)
+    {
+        $this->readline->moveCursorBy($n);
+    }
+
+    /**
+     * Moves cursor to given position in current line buffer.
+     *
+     * Values out of range (exceeding current input buffer) are simply ignored.
+     *
+     * Will redraw() the readline only if the visible cell position changes,
+     * see `self::getCursorCell()` for more details.
+     *
+     * @param int $n
+     * @return void
+     */
+    public function moveCursorTo($n)
+    {
+        $this->readline->moveCursorTo($n);
+    }
+
+    /**
+     * Appends the given input to the current text input buffer at the current position
+     *
+     * This moves the cursor accordingly to the number of characters added.
+     *
+     * @param string $input
+     * @return void
+     */
+    public function addInput($input)
+    {
+        $this->readline->addInput($input);
+    }
+
+    /**
+     * set current text input buffer
+     *
+     * this moves the cursor to the end of the current
+     * input buffer (if any).
+     *
+     * @param string $input
+     * @return void
+     */
+    public function setInput($input)
+    {
+        $this->readline->setInput($input);
+    }
+
+    /**
+     * get current text input buffer
+     *
+     * @return string
+     */
+    public function getInput()
+    {
+        return $this->readline->getInput();
+    }
+
+    /**
+     * Adds a new line to the (bottom position of the) history list
+     *
+     * @param string $line
+     * @return void
+     */
+    public function addHistory($line)
+    {
+        $this->readline->addHistory($line);
+    }
+
+    /**
+     * Clears the complete history list
+     *
+     * @return void
+     */
+    public function clearHistory()
+    {
+        $this->readline->clearHistory();
+    }
+
+    /**
+     * Returns an array with all lines in the history
+     *
+     * @return string[]
+     */
+    public function listHistory()
+    {
+        return $this->readline->listHistory();
+    }
+
+    /**
+     * Limits the history to a maximum of N entries and truncates the current history list accordingly
+     *
+     * @param int|null $limit
+     * @return void
+     */
+    public function limitHistory($limit)
+    {
+        $this->readline->limitHistory($limit);
+    }
+
+    /**
+     * set autocompletion handler to use
+     *
+     * The autocomplete handler will be called whenever the user hits the TAB
+     * key.
+     *
+     * @param callable|null $autocomplete
+     * @return void
+     * @throws \InvalidArgumentException if the given callable is invalid
+     */
+    public function setAutocomplete($autocomplete)
+    {
+        $this->readline->setAutocomplete($autocomplete);
+    }
+
+    /**
+     * whether or not to emit a audible/visible BELL signal when using a disabled function
+     *
+     * By default, this class will emit a BELL signal when using a disable function,
+     * such as using the <kbd>left</kbd> or <kbd>backspace</kbd> keys when
+     * already at the beginning of the line.
+     *
+     * Whether or not the BELL is audible/visible depends on the termin and its
+     * settings, i.e. some terminals may "beep" or flash the screen or emit a
+     * short vibration.
+     *
+     * @param bool $bell
+     * @return void
+     */
+    public function setBell($bell)
+    {
+        $this->readline->setBell($bell);
+    }
+
+    private function width($str)
+    {
+        return $this->readline->strwidth($str) - 2 * substr_count($str, "\x08");
+    }
+
+    /** @internal */
+    public function handleError(\Exception $e)
+    {
+        $this->emit('error', array($e));
+        $this->close();
+    }
+
+    /** @internal */
+    public function handleEnd()
+    {
+        $this->emit('end');
+    }
+
+    /** @internal */
+    public function handleCloseInput()
+    {
+        $this->restoreTtyMode();
+
+        if (!$this->output->isWritable()) {
+            $this->close();
+        }
+    }
+
+    /** @internal */
+    public function handleCloseOutput()
+    {
+        if (!$this->input->isReadable()) {
+            $this->close();
+        }
+    }
+
+    /**
+     * @codeCoverageIgnore this is covered by functional tests with/without ext-readline
+     */
+    private function restoreTtyMode()
+    {
+        if (function_exists('readline_callback_handler_remove')) {
+            // remove dummy readline handler to turn to default input mode
+            readline_callback_handler_remove();
+        } elseif ($this->originalTtyMode !== null && is_resource(STDIN) && $this->isTty()) {
+            // Reset stty so it behaves normally again
+            shell_exec('stty ' . escapeshellarg($this->originalTtyMode));
+            $this->originalTtyMode = null;
+        }
+
+        // restore blocking mode so following programs behave normally
+        if (defined('STDIN') && is_resource(STDIN)) {
+            stream_set_blocking(STDIN, true);
+        }
+    }
+
+    /**
+     * @param ?LoopInterface $loop
+     * @return ReadableStreamInterface
+     * @codeCoverageIgnore this is covered by functional tests with/without ext-readline
+     */
+    private function createStdin(LoopInterface $loop = null)
+    {
+        // STDIN not defined ("php -a") or already closed (`fclose(STDIN)`)
+        // also support starting program with closed STDIN ("example.php 0<&-")
+        // the stream is a valid resource and is not EOF, but fstat fails
+        if (!defined('STDIN') || !is_resource(STDIN) || fstat(STDIN) === false) {
+            $stream = new ReadableResourceStream(fopen('php://memory', 'r'), $loop);
+            $stream->close();
+            return $stream;
+        }
+
+        $stream = new ReadableResourceStream(STDIN, $loop);
+
+        if (function_exists('readline_callback_handler_install')) {
+            // Prefer `ext-readline` to install dummy handler to turn on raw input mode.
+            // We will never actually feed the readline handler and instead
+            // handle all input in our `Readline` implementation.
+            readline_callback_handler_install('', function () { });
+            return $stream;
+        }
+
+        if ($this->isTty()) {
+            $this->originalTtyMode = rtrim(shell_exec('stty -g'), PHP_EOL);
+
+            // Disable icanon (so we can fread each keypress) and echo (we'll do echoing here instead)
+            shell_exec('stty -icanon -echo');
+        }
+
+        // register shutdown function to restore TTY mode in case of unclean shutdown (uncaught exception)
+        // this will not trigger on SIGKILL etc., but the terminal should take care of this
+        register_shutdown_function(array($this, 'close'));
+
+        return $stream;
+    }
+
+    /**
+     * @param ?LoopInterface $loop
+     * @return WritableStreamInterface
+     * @codeCoverageIgnore this is covered by functional tests
+     */
+    private function createStdout(LoopInterface $loop = null)
+    {
+        // STDOUT not defined ("php -a") or already closed (`fclose(STDOUT)`)
+        // also support starting program with closed STDOUT ("example.php >&-")
+        // the stream is a valid resource and is not EOF, but fstat fails
+        if (!defined('STDOUT') || !is_resource(STDOUT) || fstat(STDOUT) === false) {
+            $output = new WritableResourceStream(fopen('php://memory', 'r+'), $loop);
+            $output->close();
+        } else {
+            $output = new WritableResourceStream(STDOUT, $loop);
+        }
+
+        return $output;
+    }
+
+    /**
+     * @return bool
+     * @codeCoverageIgnore
+     */
+    private function isTty()
+    {
+        if (PHP_VERSION_ID >= 70200) {
+            // Prefer `stream_isatty()` (available as of PHP 7.2 only)
+            return stream_isatty(STDIN);
+        } elseif (function_exists('posix_isatty')) {
+            // Otherwise use `posix_isatty` if available (requires `ext-posix`)
+            return posix_isatty(STDIN);
+        }
+
+        // otherwise try to guess based on stat file mode and device major number
+        // Must be special character device: ($mode & S_IFMT) === S_IFCHR
+        // And device major number must be allocated to TTYs (2-5 and 128-143)
+        // For what it's worth, checking for device gid 5 (tty) is less reliable.
+        // @link http://man7.org/linux/man-pages/man7/inode.7.html
+        // @link https://www.kernel.org/doc/html/v4.11/admin-guide/devices.html#terminal-devices
+        $stat = fstat(STDIN);
+        $mode = isset($stat['mode']) ? ($stat['mode'] & 0170000) : 0;
+        $major = isset($stat['dev']) ? (($stat['dev'] >> 8) & 0xff) : 0;
+
+        return ($mode === 0020000 && $major >= 2 && $major <= 143 && ($major <=5 || $major >= 128));
+    }
+}
diff --git a/vendor/clue/term-react/LICENSE b/vendor/clue/term-react/LICENSE
new file mode 100644
index 0000000..7baae8e
--- /dev/null
+++ b/vendor/clue/term-react/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2016 Christian Lück
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/vendor/clue/term-react/composer.json b/vendor/clue/term-react/composer.json
new file mode 100644
index 0000000..d1b3ce5
--- /dev/null
+++ b/vendor/clue/term-react/composer.json
@@ -0,0 +1,27 @@
+{
+    "name": "clue/term-react",
+    "description": "Streaming terminal emulator, built on top of ReactPHP.",
+    "keywords": ["terminal", "control codes", "xterm", "ANSI", "ASCII", "VT100", "csi", "osc", "apc", "dps", "pm", "C1", "C0", "streaming", "ReactPHP"],
+    "homepage": "https://github.com/clue/reactphp-term",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Christian Lück",
+            "email": "christian@clue.engineering"
+        }
+    ],
+    "autoload": {
+        "psr-4": { "Clue\\React\\Term\\": "src/" }
+    },
+    "autoload-dev": {
+        "psr-4": { "Clue\\Tests\\React\\Term\\": "tests/" }
+    },
+    "require": {
+        "php": ">=5.3",
+        "react/stream": "^1.0 || ^0.7"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^9.3 || ^5.7 || ^4.8",
+        "react/event-loop": "^1.0 || ^0.5 || ^0.4 || ^0.3"
+    }
+}
diff --git a/vendor/clue/term-react/src/ControlCodeParser.php b/vendor/clue/term-react/src/ControlCodeParser.php
new file mode 100644
index 0000000..abbe400
--- /dev/null
+++ b/vendor/clue/term-react/src/ControlCodeParser.php
@@ -0,0 +1,223 @@
+<?php
+
+namespace Clue\React\Term;
+
+use Evenement\EventEmitter;
+use React\Stream\ReadableStreamInterface;
+use React\Stream\WritableStreamInterface;
+use React\Stream\Util;
+
+class ControlCodeParser extends EventEmitter implements ReadableStreamInterface
+{
+    private $input;
+    private $closed = false;
+    private $buffer = '';
+
+    /**
+     * we know about the following C1 types (7 bit only)
+     *
+     * followed by "[" means it's CSI (Control Sequence Introducer)
+     * followed by "]" means it's OSC (Operating System Controls)
+     * followed by "_" means it's APC (Application Program-Control)
+     * followed by "P" means it's DPS (Device-Control string)
+     * followed by "^" means it's PM (Privacy Message)
+     *
+     * Each of these will be parsed until the sequence ends and then emitted
+     * under their respective name.
+     *
+     * All other C1 types will be emitted under the "c1" name without any
+     * further processing.
+     *
+     * C1 types in 8 bit are currently not supported, as they require special
+     * care with regards to whether UTF-8 mode is enabled. So far this has
+     * turned out to be a non-issue because most terminal emulators *accept*
+     * boths formats, but usually *send* in 7 bit mode exclusively.
+     */
+    private $types = array(
+        '[' => 'csi',
+        ']' => 'osc',
+        '_' => 'apc',
+        'P' => 'dps',
+        '^' => 'pm',
+    );
+
+    public function __construct(ReadableStreamInterface $input)
+    {
+        $this->input = $input;
+
+        if (!$this->input->isReadable()) {
+            return $this->close();
+        }
+
+        $this->input->on('data', array($this, 'handleData'));
+        $this->input->on('end', array($this, 'handleEnd'));
+        $this->input->on('error', array($this, 'handleError'));
+        $this->input->on('close', array($this, 'close'));
+    }
+
+    public function isReadable()
+    {
+        return !$this->closed && $this->input->isReadable();
+    }
+
+    public function pause()
+    {
+        $this->input->pause();
+    }
+
+    public function resume()
+    {
+        $this->input->resume();
+    }
+
+    public function pipe(WritableStreamInterface $dest, array $options = array())
+    {
+        Util::pipe($this, $dest, $options);
+
+        return $dest;
+    }
+
+    public function close()
+    {
+        if ($this->closed) {
+            return;
+        }
+
+        $this->closed = true;
+        $this->buffer = '';
+
+        $this->input->close();
+
+        $this->emit('close');
+        $this->removeAllListeners();
+    }
+
+    /** @internal */
+    public function handleData($data)
+    {
+        $this->buffer .= $data;
+
+        while ($this->buffer !== '') {
+            // search for first control character (C0 and DEL)
+            $c0 = false;
+            for ($i = 0; isset($this->buffer[$i]); ++$i) {
+                $code = ord($this->buffer[$i]);
+                if ($code < 0x20 || $code === 0x7F) {
+                    $c0 = $i;
+                    break;
+                }
+            }
+
+            // no C0 found, emit whole buffer as data
+            if ($c0 === false) {
+                $data = $this->buffer;
+                $this->buffer = '';
+
+                $this->emit('data', array($data));
+                return;
+            }
+
+            // C0 found somewhere inbetween, emit everything before C0 as data
+            if ($c0 !== 0) {
+                $data = substr($this->buffer, 0, $c0);
+                $this->buffer = substr($this->buffer, $c0);
+
+                $this->emit('data', array($data));
+                continue;
+            }
+
+            // C0 is now at start of buffer
+            // check if this is a normal C0 code or an ESC (\x1B = \033)
+            // normal C0 will be emitted, ESC will be parsed further
+            if ($this->buffer[0] !== "\x1B") {
+                $data = $this->buffer[0];
+                $this->buffer = (string)substr($this->buffer, 1);
+
+                $this->emit('c0', array($data));
+                continue;
+            }
+
+            // check following byte to determine type
+            if (!isset($this->buffer[1])) {
+                // type currently unknown, wait for next data chunk
+                break;
+            }
+
+            // if this is an unknown type, just emit as "c1" without further parsing
+            if (!isset($this->types[$this->buffer[1]])) {
+                $data = substr($this->buffer, 0, 2);
+                $this->buffer = (string)substr($this->buffer, 2);
+
+                $this->emit('c1', array($data));
+                continue;
+            }
+
+            // this is known type, check for the sequence end
+            $type = $this->types[$this->buffer[1]];
+            $found = false;
+
+            if ($type === 'csi') {
+                // CSI is now at the start of the buffer, search final character
+                for ($i = 2; isset($this->buffer[$i]); ++$i) {
+                    $code = ord($this->buffer[$i]);
+
+                    // final character between \x40-\x7E
+                    if ($code >= 64 && $code <= 126) {
+                        $data = substr($this->buffer, 0, $i + 1);
+                        $this->buffer = (string)substr($this->buffer, $i + 1);
+
+                        $this->emit($type, array($data));
+                        $found = true;
+                        break;
+                    }
+                }
+            } else {
+                // all other types are terminated by ST
+                // only OSC can also be terminted by BEL (whichever comes first)
+                $st = strpos($this->buffer, "\x1B\\");
+                $bel = ($type === 'osc') ? strpos($this->buffer, "\x07") : false;
+
+                if ($st !== false && ($bel === false || $bel > $st)) {
+                    // ST comes before BEL or no BEL found
+                    $data = substr($this->buffer, 0, $st + 2);
+                    $this->buffer = (string)substr($this->buffer, $st + 2);
+
+                    $this->emit($type, array($data));
+                    $found = true;
+                } elseif ($bel !== false) {
+                    // BEL comes before ST or no ST found
+                    $data = substr($this->buffer, 0, $bel + 1);
+                    $this->buffer = (string)substr($this->buffer, $bel + 1);
+
+                    $this->emit($type, array($data));
+                    $found = true;
+                }
+            }
+
+            // no final character found => wait for next data chunk
+            if (!$found) {
+                break;
+            }
+        }
+    }
+
+    /** @internal */
+    public function handleEnd()
+    {
+        if (!$this->closed) {
+            if ($this->buffer === '') {
+                $this->emit('end');
+            } else {
+                $this->emit('error', array(new \RuntimeException('Stream ended with incomplete control code sequence in buffer')));
+            }
+            $this->close();
+        }
+    }
+
+    /** @internal */
+    public function handleError(\Exception $e)
+    {
+        $this->emit('error', array($e));
+        $this->close();
+    }
+}
diff --git a/vendor/clue/utf8-react/LICENSE b/vendor/clue/utf8-react/LICENSE
new file mode 100644
index 0000000..7baae8e
--- /dev/null
+++ b/vendor/clue/utf8-react/LICENSE
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2016 Christian Lück
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/vendor/clue/utf8-react/composer.json b/vendor/clue/utf8-react/composer.json
new file mode 100644
index 0000000..931708f
--- /dev/null
+++ b/vendor/clue/utf8-react/composer.json
@@ -0,0 +1,27 @@
+{
+    "name": "clue/utf8-react",
+    "description": "Streaming UTF-8 parser, built on top of ReactPHP.",
+    "keywords": ["UTF-8", "utf8", "unicode", "streaming", "ReactPHP"],
+    "homepage": "https://github.com/clue/reactphp-utf8",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Christian Lück",
+            "email": "christian@clue.engineering"
+        }
+    ],
+    "autoload": {
+        "psr-4": { "Clue\\React\\Utf8\\": "src/" }
+    },
+    "autoload-dev": {
+        "psr-4": { "Clue\\Tests\\React\\Utf8\\": "tests/" }
+    },
+    "require": {
+        "php": ">=5.3",
+        "react/stream": "^1.0 || ^0.7 || ^0.6 || ^0.5 || ^0.4 || ^0.3"
+    },
+    "require-dev": {
+        "phpunit/phpunit": "^9.3 ||^5.7 || ^4.8",
+        "react/stream": "^1.0 || ^0.7"
+    }
+}
diff --git a/vendor/clue/utf8-react/src/Sequencer.php b/vendor/clue/utf8-react/src/Sequencer.php
new file mode 100644
index 0000000..e9bf433
--- /dev/null
+++ b/vendor/clue/utf8-react/src/Sequencer.php
@@ -0,0 +1,174 @@
+<?php
+
+namespace Clue\React\Utf8;
+
+use Evenement\EventEmitter;
+use React\Stream\ReadableStreamInterface;
+use React\Stream\WritableStreamInterface;
+use React\Stream\Util;
+
+/**
+ * forwards only complete UTF-8 sequences
+ */
+class Sequencer extends EventEmitter implements ReadableStreamInterface
+{
+    private $input;
+    private $invalid;
+
+    private $buffer = '';
+    private $closed = false;
+
+    public function __construct(ReadableStreamInterface $input, $replacementCharacter = '?')
+    {
+        $this->input = $input;
+        $this->invalid = $replacementCharacter;
+
+        if (!$input->isReadable()) {
+            return $this->close();
+        }
+
+        $this->input->on('data', array($this, 'handleData'));
+        $this->input->on('end', array($this, 'handleEnd'));
+        $this->input->on('error', array($this, 'handleError'));
+        $this->input->on('close', array($this, 'close'));
+    }
+
+    /** @internal */
+    public function handleData($data)
+    {
+        $this->buffer .= $data;
+        $len = strlen($this->buffer);
+
+        $sequence = '';
+        $expect = 0;
+        $out = '';
+
+        for ($i = 0; $i < $len; ++$i) {
+            $char = $this->buffer[$i];
+            $code = ord($char);
+
+            if ($code & 128) {
+                // multi-byte sequence
+                if ($code & 64) {
+                    // this is the start of a sequence
+
+                    // unexpected start of sequence because already within sequence
+                    if ($expect !== 0) {
+                        $out .= str_repeat($this->invalid, strlen($sequence));
+                        $sequence = '';
+                    }
+
+                    $sequence = $char;
+                    $expect = 2;
+
+                    if ($code & 32) {
+                        ++$expect;
+                        if ($code & 16) {
+                            ++$expect;
+
+                            if ($code & 8) {
+                                // invalid sequence start length
+                                $out .= $this->invalid;
+                                $sequence = '';
+                                $expect = 0;
+                            }
+                        }
+                    }
+                } else {
+                    // this is a follow-up byte in a sequence
+                    if ($expect === 0) {
+                        // we're not within a sequence in first place
+                        $out .= $this->invalid;
+                    } else {
+                        // valid following byte in sequence
+                        $sequence .= $char;
+
+                        // sequence reached expected length => add to output
+                        if (strlen($sequence) === $expect) {
+                            $out .= $sequence;
+                            $sequence = '';
+                            $expect = 0;
+                        }
+                    }
+                }
+            } else {
+                // simple ASCII character found
+
+                // unexpected because already within sequence
+                if ($expect !== 0) {
+                    $out .= str_repeat($this->invalid, strlen($sequence));
+                    $sequence = '';
+                    $expect = 0;
+                }
+
+                $out .= $char;
+            }
+        }
+
+        if ($out !== '') {
+            $this->buffer = substr($this->buffer, strlen($out));
+
+            $this->emit('data', array($out));
+        }
+    }
+
+    /** @internal */
+    public function handleEnd()
+    {
+        if ($this->buffer !== '' && $this->invalid !== '') {
+            $data = str_repeat($this->invalid, strlen($this->buffer));
+            $this->buffer = '';
+
+            $this->emit('data', array($data));
+        }
+
+        if (!$this->closed) {
+            $this->emit('end');
+            $this->close();
+        }
+    }
+
+    /** @internal */
+    public function handleError(\Exception $error)
+    {
+        $this->emit('error', array($error));
+        $this->close();
+    }
+
+    public function isReadable()
+    {
+        return !$this->closed && $this->input->isReadable();
+    }
+
+    public function close()
+    {
+        if ($this->closed) {
+            return;
+        }
+
+        $this->closed = true;
+        $this->buffer = '';
+
+        $this->input->close();
+
+        $this->emit('close');
+        $this->removeAllListeners();
+    }
+
+    public function pause()
+    {
+        $this->input->pause();
+    }
+
+    public function resume()
+    {
+        $this->input->resume();
+    }
+
+    public function pipe(WritableStreamInterface $dest, array $options = array())
+    {
+        Util::pipe($this, $dest, $options);
+
+        return $dest;
+    }
+}