Upgrade phpCAS

[piwik-CASLogin.git] / CAS / CAS / Request / CurlMultiRequest.php

diff --git a/CAS/CAS/Request/CurlMultiRequest.php b/CAS/CAS/Request/CurlMultiRequest.php
new file mode 100644 (file)
index 0000000..a046989
--- /dev/null
+++ b/CAS/CAS/Request/CurlMultiRequest.php
@@ -0,0 +1,136 @@
+<?php
+
+/**
+ * Licensed to Jasig under one or more contributor license
+ * agreements. See the NOTICE file distributed with this work for
+ * additional information regarding copyright ownership.
+ *
+ * Jasig licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * PHP Version 5
+ *
+ * @file     CAS/Request/AbstractRequest.php
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Adam Franco <afranco@middlebury.edu>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ */
+
+/**
+ * This interface defines a class library for performing multiple web requests
+ * in batches. Implementations of this interface may perform requests serially
+ * or in parallel.
+ *
+ * @class    CAS_Request_CurlMultiRequest
+ * @category Authentication
+ * @package  PhpCAS
+ * @author   Adam Franco <afranco@middlebury.edu>
+ * @license  http://www.apache.org/licenses/LICENSE-2.0  Apache License 2.0
+ * @link     https://wiki.jasig.org/display/CASC/phpCAS
+ */
+class CAS_Request_CurlMultiRequest
+implements CAS_Request_MultiRequestInterface
+{
+    private $_requests = array();
+    private $_sent = false;
+
+    /*********************************************************
+     * Add Requests
+    *********************************************************/
+
+    /**
+     * Add a new Request to this batch.
+     * Note, implementations will likely restrict requests to their own concrete
+     * class hierarchy.
+     *
+     * @param CAS_Request_RequestInterface $request reqest to add
+     *
+     * @return void
+     * @throws CAS_OutOfSequenceException If called after the Request has been sent.
+     * @throws CAS_InvalidArgumentException If passed a Request of the wrong
+     * implmentation.
+     */
+    public function addRequest (CAS_Request_RequestInterface $request)
+    {
+        if ($this->_sent) {
+            throw new CAS_OutOfSequenceException('Request has already been sent cannot '.__METHOD__);
+        }
+        if (!$request instanceof CAS_Request_CurlRequest) {
+            throw new CAS_InvalidArgumentException('As a CAS_Request_CurlMultiRequest, I can only work with CAS_Request_CurlRequest objects.');
+        }
+
+        $this->_requests[] = $request;
+    }
+
+    /**
+     * Retrieve the number of requests added to this batch.
+     *
+     * @return number of request elements
+     */
+    public function getNumRequests()
+    {
+        if ($this->_sent) {
+            throw new CAS_OutOfSequenceException('Request has already been sent cannot '.__METHOD__);
+        }
+        return count($this->_requests);
+    }
+
+    /*********************************************************
+     * 2. Send the Request
+    *********************************************************/
+
+    /**
+     * Perform the request. After sending, all requests will have their
+     * responses poulated.
+     *
+     * @return bool TRUE on success, FALSE on failure.
+     * @throws CAS_OutOfSequenceException If called multiple times.
+     */
+    public function send ()
+    {
+        if ($this->_sent) {
+            throw new CAS_OutOfSequenceException('Request has already been sent cannot send again.');
+        }
+        if (!count($this->_requests)) {
+            throw new CAS_OutOfSequenceException('At least one request must be added via addRequest() before the multi-request can be sent.');
+        }
+
+        $this->_sent = true;
+
+        // Initialize our handles and configure all requests.
+        $handles = array();
+        $multiHandle = curl_multi_init();
+        foreach ($this->_requests as $i => $request) {
+            $handle = $request->_initAndConfigure();
+            curl_setopt($handle, CURLOPT_RETURNTRANSFER, true);
+            $handles[$i] = $handle;
+            curl_multi_add_handle($multiHandle, $handle);
+        }
+
+        // Execute the requests in parallel.
+        do {
+            curl_multi_exec($multiHandle, $running);
+        } while ($running > 0);
+
+        // Populate all of the responses or errors back into the request objects.
+        foreach ($this->_requests as $i => $request) {
+            $buf = curl_multi_getcontent($handles[$i]);
+            $request->_storeResponseBody($buf);
+            curl_multi_remove_handle($multiHandle, $handles[$i]);
+            curl_close($handles[$i]);
+        }
+
+        curl_multi_close($multiHandle);
+    }
+}