1 files changed, 81 insertions, 0 deletions
diff --git a/library/Icinga/Web/Helper/CookieHelper.php b/library/Icinga/Web/Helper/CookieHelper.php
new file mode 100644
index 0000000..cc7c448
--- /dev/null
+++ b/library/Icinga/Web/Helper/CookieHelper.php
@@ -0,0 +1,81 @@
+<?php
+/* Icinga Web 2 | (c) 2013 Icinga Development Team | GPLv2+ */
+
+namespace Icinga\Web\Helper;
+
+use Icinga\Web\Request;
+
+/**
+ * Helper Class Cookie
+ */
+class CookieHelper
+{
+    /**
+     * The name of the control cookie
+     */
+    const CHECK_COOKIE = '_chc';
+
+    /**
+     * The request
+     *
+     * @var Request
+     */
+    protected $request;
+
+    /**
+     * Create a new cookie
+     *
+     * @param Request $request
+     */
+    public function __construct(Request $request)
+    {
+        $this->request = $request;
+    }
+
+    /**
+     * Check whether cookies are supported or not
+     *
+     * @return bool
+     */
+    public function isSupported()
+    {
+        if (! empty($_COOKIE)) {
+            $this->cleanupCheck();
+            return true;
+        }
+
+        $url = $this->request->getUrl();
+
+        if ($url->hasParam('_checkCookie') && empty($_COOKIE)) {
+            return false;
+        }
+
+        if (! $url->hasParam('_checkCookie')) {
+            $this->provideCheck();
+        }
+
+        return false;
+    }
+
+    /**
+     * Prepare check to detect cookie support
+     */
+    public function provideCheck()
+    {
+        setcookie(self::CHECK_COOKIE, '1');
+
+        $requestUri = $this->request->getUrl()->addParams(array('_checkCookie' => 1));
+        $this->request->getResponse()->redirectAndExit($requestUri);
+    }
+
+    /**
+     * Cleanup the cookie support check
+     */
+    public function cleanupCheck()
+    {
+        if ($this->request->getUrl()->hasParam('_checkCookie') && isset($_COOKIE[self::CHECK_COOKIE])) {
+            $requestUri =$this->request->getUrl()->without('_checkCookie');
+            $this->request->getResponse()->redirectAndExit($requestUri);
+        }
+    }
+}