#866 PEAR update

libs/PEAR.1.9.5/HTTP/Request2/Adapter.php

@@ -0,0 +1,137 @@
+<?php
+/**
+ * Base class for HTTP_Request2 adapters
+ *
+ * PHP version 5
+ *
+ * LICENSE
+ *
+ * This source file is subject to BSD 3-Clause License that is bundled
+ * with this package in the file LICENSE and available at the URL
+ * https://raw.github.com/pear/HTTP_Request2/trunk/docs/LICENSE
+ *
+ * @category  HTTP
+ * @package   HTTP_Request2
+ * @author    Alexey Borzov <avb@php.net>
+ * @copyright 2008-2014 Alexey Borzov <avb@php.net>
+ * @license   http://opensource.org/licenses/BSD-3-Clause BSD 3-Clause License
+ * @link      http://pear.php.net/package/HTTP_Request2
+ */
+
+/**
+ * Class representing a HTTP response
+ */
+require_once 'HTTP/Request2/Response.php';
+
+/**
+ * Base class for HTTP_Request2 adapters
+ *
+ * HTTP_Request2 class itself only defines methods for aggregating the request
+ * data, all actual work of sending the request to the remote server and
+ * receiving its response is performed by adapters.
+ *
+ * @category HTTP
+ * @package  HTTP_Request2
+ * @author   Alexey Borzov <avb@php.net>
+ * @license  http://opensource.org/licenses/BSD-3-Clause BSD 3-Clause License
+ * @version  Release: 2.2.1
+ * @link     http://pear.php.net/package/HTTP_Request2
+ */
+abstract class HTTP_Request2_Adapter
+{
+    /**
+     * A list of methods that MUST NOT have a request body, per RFC 2616
+     * @var  array
+     */
+    protected static $bodyDisallowed = array('TRACE');
+
+    /**
+     * Methods having defined semantics for request body
+     *
+     * Content-Length header (indicating that the body follows, section 4.3 of
+     * RFC 2616) will be sent for these methods even if no body was added
+     *
+     * @var  array
+     * @link http://pear.php.net/bugs/bug.php?id=12900
+     * @link http://pear.php.net/bugs/bug.php?id=14740
+     */
+    protected static $bodyRequired = array('POST', 'PUT');
+
+    /**
+     * Request being sent
+     * @var  HTTP_Request2
+     */
+    protected $request;
+
+    /**
+     * Request body
+     * @var  string|resource|HTTP_Request2_MultipartBody
+     * @see  HTTP_Request2::getBody()
+     */
+    protected $requestBody;
+
+    /**
+     * Length of the request body
+     * @var  integer
+     */
+    protected $contentLength;
+
+    /**
+     * Sends request to the remote server and returns its response
+     *
+     * @param HTTP_Request2 $request HTTP request message
+     *
+     * @return   HTTP_Request2_Response
+     * @throws   HTTP_Request2_Exception
+     */
+    abstract public function sendRequest(HTTP_Request2 $request);
+
+    /**
+     * Calculates length of the request body, adds proper headers
+     *
+     * @param array &$headers associative array of request headers, this method
+     *                        will add proper 'Content-Length' and 'Content-Type'
+     *                        headers to this array (or remove them if not needed)
+     */
+    protected function calculateRequestLength(&$headers)
+    {
+        $this->requestBody = $this->request->getBody();
+
+        if (is_string($this->requestBody)) {
+            $this->contentLength = strlen($this->requestBody);
+        } elseif (is_resource($this->requestBody)) {
+            $stat = fstat($this->requestBody);
+            $this->contentLength = $stat['size'];
+            rewind($this->requestBody);
+        } else {
+            $this->contentLength = $this->requestBody->getLength();
+            $headers['content-type'] = 'multipart/form-data; boundary=' .
+                                       $this->requestBody->getBoundary();
+            $this->requestBody->rewind();
+        }
+
+        if (in_array($this->request->getMethod(), self::$bodyDisallowed)
+            || 0 == $this->contentLength
+        ) {
+            // No body: send a Content-Length header nonetheless (request #12900),
+            // but do that only for methods that require a body (bug #14740)
+            if (in_array($this->request->getMethod(), self::$bodyRequired)) {
+                $headers['content-length'] = 0;
+            } else {
+                unset($headers['content-length']);
+                // if the method doesn't require a body and doesn't have a
+                // body, don't send a Content-Type header. (request #16799)
+                unset($headers['content-type']);
+            }
+        } else {
+            if (empty($headers['content-type'])) {
+                $headers['content-type'] = 'application/x-www-form-urlencoded';
+            }
+            // Content-Length should not be sent for chunked Transfer-Encoding (bug #20125)
+            if (!isset($headers['transfer-encoding'])) {
+                $headers['content-length'] = $this->contentLength;
+            }
+        }
+    }
+}
+?>