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-rw-r--r--library/Icinga/Application/Libraries.php91
1 files changed, 91 insertions, 0 deletions
diff --git a/library/Icinga/Application/Libraries.php b/library/Icinga/Application/Libraries.php
new file mode 100644
index 0000000..8e4a79d
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+++ b/library/Icinga/Application/Libraries.php
@@ -0,0 +1,91 @@
+<?php
+/* Icinga Web 2 | (c) 2020 Icinga GmbH | GPLv2+ */
+
+namespace Icinga\Application;
+
+use ArrayIterator;
+use IteratorAggregate;
+use Icinga\Application\Libraries\Library;
+use Traversable;
+
+class Libraries implements IteratorAggregate
+{
+ /** @var Library[] */
+ protected $libraries = [];
+
+ /**
+ * Iterate over registered libraries
+ *
+ * @return ArrayIterator
+ */
+ public function getIterator(): Traversable
+ {
+ return new ArrayIterator($this->libraries);
+ }
+
+ /**
+ * Register a library from the given path
+ *
+ * @param string $path
+ *
+ * @return Library The registered library
+ */
+ public function registerPath($path)
+ {
+ $library = new Library($path);
+ $this->libraries[] = $library;
+
+ return $library;
+ }
+
+ /**
+ * Check if a library with the given name has been registered
+ *
+ * Passing a version constraint also verifies that the library's version matches.
+ *
+ * @param string $name
+ * @param string $version
+ *
+ * @return bool
+ */
+ public function has($name, $version = null)
+ {
+ $library = $this->get($name);
+ if ($library === null) {
+ return false;
+ } elseif ($version === null || $version === true) {
+ return true;
+ }
+
+ $operator = '=';
+ if (preg_match('/^([<>=]{1,2})\s*v?((?:[\d.]+)(?:\D+)?)$/', $version, $match)) {
+ $operator = $match[1];
+ $version = $match[2];
+ }
+
+ return version_compare($library->getVersion(), $version, $operator);
+ }
+
+ /**
+ * Get a library by name
+ *
+ * @param string $name
+ *
+ * @return Library|null
+ */
+ public function get($name)
+ {
+ $candidate = null;
+ foreach ($this->libraries as $library) {
+ $libraryName = $library->getName();
+ if ($libraryName === $name) {
+ return $library;
+ } elseif (strpos($libraryName, '/') !== false && explode('/', $libraryName)[1] === $name) {
+ // Also return libs which only partially match
+ $candidate = $library;
+ }
+ }
+
+ return $candidate;
+ }
+}