1 files changed, 291 insertions, 0 deletions
diff --git a/3rdparty/ZendFeed/PubSubHubbub/AbstractCallback.php b/3rdparty/ZendFeed/PubSubHubbub/AbstractCallback.php
new file mode 100644
index 000000000..7645cb905
--- /dev/null
+++ b/3rdparty/ZendFeed/PubSubHubbub/AbstractCallback.php
@@ -0,0 +1,291 @@
+<?php
+/**
+ * Zend Framework (http://framework.zend.com/)
+ *
+ * @link      http://github.com/zendframework/zf2 for the canonical source repository
+ * @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license   http://framework.zend.com/license/new-bsd New BSD License
+ */
+
+namespace Zend\Feed\PubSubHubbub;
+
+use Traversable;
+use Zend\Http\PhpEnvironment\Response as PhpResponse;
+use Zend\Stdlib\ArrayUtils;
+
+abstract class AbstractCallback implements CallbackInterface
+{
+    /**
+     * An instance of Zend\Feed\Pubsubhubbub\Model\SubscriptionPersistenceInterface
+     * used to background save any verification tokens associated with a subscription
+     * or other.
+     *
+     * @var Model\SubscriptionPersistenceInterface
+     */
+    protected $storage = null;
+
+    /**
+     * An instance of a class handling Http Responses. This is implemented in
+     * Zend\Feed\Pubsubhubbub\HttpResponse which shares an unenforced interface with
+     * (i.e. not inherited from) Zend\Controller\Response\Http.
+     *
+     * @var HttpResponse|PhpResponse
+     */
+    protected $httpResponse = null;
+
+    /**
+     * The number of Subscribers for which any updates are on behalf of.
+     *
+     * @var int
+     */
+    protected $subscriberCount = 1;
+
+    /**
+     * Constructor; accepts an array or Traversable object to preset
+     * options for the Subscriber without calling all supported setter
+     * methods in turn.
+     *
+     * @param  array|Traversable $options Options array or Traversable object
+     */
+    public function __construct($options = null)
+    {
+        if ($options !== null) {
+            $this->setOptions($options);
+        }
+    }
+
+    /**
+     * Process any injected configuration options
+     *
+     * @param  array|Traversable $options Options array or Traversable object
+     * @return AbstractCallback
+     * @throws Exception\InvalidArgumentException
+     */
+    public function setOptions($options)
+    {
+        if ($options instanceof Traversable) {
+            $options = ArrayUtils::iteratorToArray($options);
+        }
+
+        if (!is_array($options)) {
+            throw new Exception\InvalidArgumentException('Array or Traversable object'
+            . 'expected, got ' . gettype($options));
+        }
+
+        if (is_array($options)) {
+            $this->setOptions($options);
+        }
+
+        if (array_key_exists('storage', $options)) {
+            $this->setStorage($options['storage']);
+        }
+        return $this;
+    }
+
+    /**
+     * Send the response, including all headers.
+     * If you wish to handle this via Zend\Http, use the getter methods
+     * to retrieve any data needed to be set on your HTTP Response object, or
+     * simply give this object the HTTP Response instance to work with for you!
+     *
+     * @return void
+     */
+    public function sendResponse()
+    {
+        $this->getHttpResponse()->send();
+    }
+
+    /**
+     * Sets an instance of Zend\Feed\Pubsubhubbub\Model\SubscriptionPersistence used
+     * to background save any verification tokens associated with a subscription
+     * or other.
+     *
+     * @param  Model\SubscriptionPersistenceInterface $storage
+     * @return AbstractCallback
+     */
+    public function setStorage(Model\SubscriptionPersistenceInterface $storage)
+    {
+        $this->storage = $storage;
+        return $this;
+    }
+
+    /**
+     * Gets an instance of Zend\Feed\Pubsubhubbub\Model\SubscriptionPersistence used
+     * to background save any verification tokens associated with a subscription
+     * or other.
+     *
+     * @return Model\SubscriptionPersistenceInterface
+     * @throws Exception\RuntimeException
+     */
+    public function getStorage()
+    {
+        if ($this->storage === null) {
+            throw new Exception\RuntimeException('No storage object has been'
+                . ' set that subclasses Zend\Feed\Pubsubhubbub\Model\SubscriptionPersistence');
+        }
+        return $this->storage;
+    }
+
+    /**
+     * An instance of a class handling Http Responses. This is implemented in
+     * Zend\Feed\Pubsubhubbub\HttpResponse which shares an unenforced interface with
+     * (i.e. not inherited from) Zend\Controller\Response\Http.
+     *
+     * @param  HttpResponse|PhpResponse $httpResponse
+     * @return AbstractCallback
+     * @throws Exception\InvalidArgumentException
+     */
+    public function setHttpResponse($httpResponse)
+    {
+        if (!$httpResponse instanceof HttpResponse && !$httpResponse instanceof PhpResponse) {
+            throw new Exception\InvalidArgumentException('HTTP Response object must'
+                . ' implement one of Zend\Feed\Pubsubhubbub\HttpResponse or'
+                . ' Zend\Http\PhpEnvironment\Response');
+        }
+        $this->httpResponse = $httpResponse;
+        return $this;
+    }
+
+    /**
+     * An instance of a class handling Http Responses. This is implemented in
+     * Zend\Feed\Pubsubhubbub\HttpResponse which shares an unenforced interface with
+     * (i.e. not inherited from) Zend\Controller\Response\Http.
+     *
+     * @return HttpResponse|PhpResponse
+     */
+    public function getHttpResponse()
+    {
+        if ($this->httpResponse === null) {
+            $this->httpResponse = new HttpResponse;
+        }
+        return $this->httpResponse;
+    }
+
+    /**
+     * Sets the number of Subscribers for which any updates are on behalf of.
+     * In other words, is this class serving one or more subscribers? How many?
+     * Defaults to 1 if left unchanged.
+     *
+     * @param  string|int $count
+     * @return AbstractCallback
+     * @throws Exception\InvalidArgumentException
+     */
+    public function setSubscriberCount($count)
+    {
+        $count = intval($count);
+        if ($count <= 0) {
+            throw new Exception\InvalidArgumentException('Subscriber count must be'
+                . ' greater than zero');
+        }
+        $this->subscriberCount = $count;
+        return $this;
+    }
+
+    /**
+     * Gets the number of Subscribers for which any updates are on behalf of.
+     * In other words, is this class serving one or more subscribers? How many?
+     *
+     * @return int
+     */
+    public function getSubscriberCount()
+    {
+        return $this->subscriberCount;
+    }
+
+    /**
+     * Attempt to detect the callback URL (specifically the path forward)
+     * @return string
+     */
+    protected function _detectCallbackUrl()
+    {
+        $callbackUrl = '';
+        if (isset($_SERVER['HTTP_X_ORIGINAL_URL'])) {
+            $callbackUrl = $_SERVER['HTTP_X_ORIGINAL_URL'];
+        } elseif (isset($_SERVER['HTTP_X_REWRITE_URL'])) {
+            $callbackUrl = $_SERVER['HTTP_X_REWRITE_URL'];
+        } elseif (isset($_SERVER['REQUEST_URI'])) {
+            $callbackUrl = $_SERVER['REQUEST_URI'];
+            $scheme = 'http';
+            if ($_SERVER['HTTPS'] == 'on') {
+                $scheme = 'https';
+            }
+            $schemeAndHttpHost = $scheme . '://' . $this->_getHttpHost();
+            if (strpos($callbackUrl, $schemeAndHttpHost) === 0) {
+                $callbackUrl = substr($callbackUrl, strlen($schemeAndHttpHost));
+            }
+        } elseif (isset($_SERVER['ORIG_PATH_INFO'])) {
+            $callbackUrl= $_SERVER['ORIG_PATH_INFO'];
+            if (!empty($_SERVER['QUERY_STRING'])) {
+                $callbackUrl .= '?' . $_SERVER['QUERY_STRING'];
+            }
+        }
+        return $callbackUrl;
+    }
+
+    /**
+     * Get the HTTP host
+     *
+     * @return string
+     */
+    protected function _getHttpHost()
+    {
+        if (!empty($_SERVER['HTTP_HOST'])) {
+            return $_SERVER['HTTP_HOST'];
+        }
+        $scheme = 'http';
+        if ($_SERVER['HTTPS'] == 'on') {
+            $scheme = 'https';
+        }
+        $name = $_SERVER['SERVER_NAME'];
+        $port = $_SERVER['SERVER_PORT'];
+        if (($scheme == 'http' && $port == 80)
+            || ($scheme == 'https' && $port == 443)
+        ) {
+            return $name;
+        }
+
+        return $name . ':' . $port;
+    }
+
+    /**
+     * Retrieve a Header value from either $_SERVER or Apache
+     *
+     * @param string $header
+     * @return bool|string
+     */
+    protected function _getHeader($header)
+    {
+        $temp = strtoupper(str_replace('-', '_', $header));
+        if (!empty($_SERVER[$temp])) {
+            return $_SERVER[$temp];
+        }
+        $temp = 'HTTP_' . strtoupper(str_replace('-', '_', $header));
+        if (!empty($_SERVER[$temp])) {
+            return $_SERVER[$temp];
+        }
+        if (function_exists('apache_request_headers')) {
+            $headers = apache_request_headers();
+            if (!empty($headers[$header])) {
+                return $headers[$header];
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Return the raw body of the request
+     *
+     * @return string|false Raw body, or false if not present
+     */
+    protected function _getRawBody()
+    {
+        $body = file_get_contents('php://input');
+        if (strlen(trim($body)) == 0 && isset($GLOBALS['HTTP_RAW_POST_DATA'])) {
+            $body = $GLOBALS['HTTP_RAW_POST_DATA'];
+        }
+        if (strlen(trim($body)) > 0) {
+            return $body;
+        }
+        return false;
+    }
+}