1522 lines
49 KiB
PHP
1522 lines
49 KiB
PHP
<?php
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/**
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* Class for performing HTTP requests
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*
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* PHP versions 4 and 5
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*
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* LICENSE:
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*
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* Copyright (c) 2002-2007, Richard Heyes
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* o Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* o Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* o The names of the authors may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* @category HTTP
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* @package HTTP_Request
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* @author Richard Heyes <richard@phpguru.org>
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* @author Alexey Borzov <avb@php.net>
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* @copyright 2002-2007 Richard Heyes
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* @license http://opensource.org/licenses/bsd-license.php New BSD License
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* @version CVS: $Id: Request.php,v 1.63 2008/10/11 11:07:10 avb Exp $
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* @link http://pear.php.net/package/HTTP_Request/
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*/
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/**
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* PEAR and PEAR_Error classes (for error handling)
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*/
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require_once 'PEAR.php';
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/**
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* Socket class
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*/
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require_once 'Net/Socket.php';
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/**
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* URL handling class
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*/
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require_once 'Net/URL.php';
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/**#@+
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* Constants for HTTP request methods
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*/
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define('HTTP_REQUEST_METHOD_GET', 'GET', true);
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define('HTTP_REQUEST_METHOD_HEAD', 'HEAD', true);
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define('HTTP_REQUEST_METHOD_POST', 'POST', true);
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define('HTTP_REQUEST_METHOD_PUT', 'PUT', true);
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define('HTTP_REQUEST_METHOD_DELETE', 'DELETE', true);
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define('HTTP_REQUEST_METHOD_OPTIONS', 'OPTIONS', true);
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define('HTTP_REQUEST_METHOD_TRACE', 'TRACE', true);
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/**#@-*/
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/**#@+
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* Constants for HTTP request error codes
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*/
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define('HTTP_REQUEST_ERROR_FILE', 1);
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define('HTTP_REQUEST_ERROR_URL', 2);
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define('HTTP_REQUEST_ERROR_PROXY', 4);
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define('HTTP_REQUEST_ERROR_REDIRECTS', 8);
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define('HTTP_REQUEST_ERROR_RESPONSE', 16);
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define('HTTP_REQUEST_ERROR_GZIP_METHOD', 32);
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define('HTTP_REQUEST_ERROR_GZIP_READ', 64);
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define('HTTP_REQUEST_ERROR_GZIP_DATA', 128);
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define('HTTP_REQUEST_ERROR_GZIP_CRC', 256);
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/**#@-*/
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/**#@+
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* Constants for HTTP protocol versions
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*/
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define('HTTP_REQUEST_HTTP_VER_1_0', '1.0', true);
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define('HTTP_REQUEST_HTTP_VER_1_1', '1.1', true);
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/**#@-*/
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if (extension_loaded('mbstring') && (2 & ini_get('mbstring.func_overload'))) {
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/**
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* Whether string functions are overloaded by their mbstring equivalents
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*/
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define('HTTP_REQUEST_MBSTRING', true);
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} else {
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/**
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* @ignore
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*/
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define('HTTP_REQUEST_MBSTRING', false);
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}
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/**
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* Class for performing HTTP requests
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*
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* Simple example (fetches yahoo.com and displays it):
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* <code>
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* $a = &new HTTP_Request('http://www.yahoo.com/');
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* $a->sendRequest();
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* echo $a->getResponseBody();
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* </code>
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*
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* @category HTTP
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* @package HTTP_Request
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* @author Richard Heyes <richard@phpguru.org>
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* @author Alexey Borzov <avb@php.net>
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* @version Release: 1.4.4
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*/
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class HTTP_Request
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{
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/**#@+
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* @access private
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*/
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/**
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* Instance of Net_URL
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* @var Net_URL
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*/
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var $_url;
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/**
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* Type of request
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* @var string
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*/
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var $_method;
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/**
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* HTTP Version
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* @var string
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*/
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var $_http;
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/**
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* Request headers
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* @var array
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*/
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var $_requestHeaders;
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/**
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* Basic Auth Username
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* @var string
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*/
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var $_user;
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/**
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* Basic Auth Password
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* @var string
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*/
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var $_pass;
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/**
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* Socket object
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* @var Net_Socket
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*/
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var $_sock;
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/**
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* Proxy server
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* @var string
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*/
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var $_proxy_host;
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/**
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* Proxy port
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* @var integer
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*/
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var $_proxy_port;
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/**
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* Proxy username
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* @var string
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*/
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var $_proxy_user;
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/**
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* Proxy password
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* @var string
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*/
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var $_proxy_pass;
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/**
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* Post data
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* @var array
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*/
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var $_postData;
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/**
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* Request body
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* @var string
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*/
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var $_body;
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/**
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* A list of methods that MUST NOT have a request body, per RFC 2616
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* @var array
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*/
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var $_bodyDisallowed = array('TRACE');
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/**
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* Methods having defined semantics for request body
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*
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* Content-Length header (indicating that the body follows, section 4.3 of
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* RFC 2616) will be sent for these methods even if no body was added
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*
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* @var array
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*/
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var $_bodyRequired = array('POST', 'PUT');
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/**
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* Files to post
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* @var array
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*/
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var $_postFiles = array();
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/**
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* Connection timeout.
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* @var float
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*/
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var $_timeout;
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/**
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* HTTP_Response object
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* @var HTTP_Response
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*/
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var $_response;
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/**
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* Whether to allow redirects
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* @var boolean
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*/
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var $_allowRedirects;
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/**
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* Maximum redirects allowed
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* @var integer
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*/
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var $_maxRedirects;
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/**
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* Current number of redirects
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* @var integer
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*/
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var $_redirects;
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/**
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* Whether to append brackets [] to array variables
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* @var bool
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*/
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var $_useBrackets = true;
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/**
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* Attached listeners
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* @var array
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*/
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var $_listeners = array();
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/**
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* Whether to save response body in response object property
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* @var bool
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*/
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var $_saveBody = true;
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/**
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* Timeout for reading from socket (array(seconds, microseconds))
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* @var array
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*/
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var $_readTimeout = null;
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/**
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* Options to pass to Net_Socket::connect. See stream_context_create
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* @var array
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*/
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var $_socketOptions = null;
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/**#@-*/
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/**
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* Constructor
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*
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* Sets up the object
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* @param string The url to fetch/access
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* @param array Associative array of parameters which can have the following keys:
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* <ul>
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* <li>method - Method to use, GET, POST etc (string)</li>
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* <li>http - HTTP Version to use, 1.0 or 1.1 (string)</li>
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* <li>user - Basic Auth username (string)</li>
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* <li>pass - Basic Auth password (string)</li>
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* <li>proxy_host - Proxy server host (string)</li>
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* <li>proxy_port - Proxy server port (integer)</li>
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* <li>proxy_user - Proxy auth username (string)</li>
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* <li>proxy_pass - Proxy auth password (string)</li>
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* <li>timeout - Connection timeout in seconds (float)</li>
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* <li>allowRedirects - Whether to follow redirects or not (bool)</li>
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* <li>maxRedirects - Max number of redirects to follow (integer)</li>
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* <li>useBrackets - Whether to append [] to array variable names (bool)</li>
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* <li>saveBody - Whether to save response body in response object property (bool)</li>
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* <li>readTimeout - Timeout for reading / writing data over the socket (array (seconds, microseconds))</li>
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* <li>socketOptions - Options to pass to Net_Socket object (array)</li>
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* </ul>
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* @access public
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*/
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function HTTP_Request($url = '', $params = array())
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{
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$this->_method = HTTP_REQUEST_METHOD_GET;
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$this->_http = HTTP_REQUEST_HTTP_VER_1_1;
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$this->_requestHeaders = array();
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$this->_postData = array();
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$this->_body = null;
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$this->_user = null;
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$this->_pass = null;
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$this->_proxy_host = null;
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$this->_proxy_port = null;
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$this->_proxy_user = null;
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$this->_proxy_pass = null;
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$this->_allowRedirects = false;
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$this->_maxRedirects = 3;
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$this->_redirects = 0;
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$this->_timeout = null;
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$this->_response = null;
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foreach ($params as $key => $value) {
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$this->{'_' . $key} = $value;
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}
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if (!empty($url)) {
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$this->setURL($url);
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}
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// Default useragent
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$this->addHeader('User-Agent', 'PEAR HTTP_Request class ( http://pear.php.net/ )');
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// We don't do keep-alives by default
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$this->addHeader('Connection', 'close');
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// Basic authentication
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if (!empty($this->_user)) {
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$this->addHeader('Authorization', 'Basic ' . base64_encode($this->_user . ':' . $this->_pass));
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}
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// Proxy authentication (see bug #5913)
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if (!empty($this->_proxy_user)) {
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$this->addHeader('Proxy-Authorization', 'Basic ' . base64_encode($this->_proxy_user . ':' . $this->_proxy_pass));
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}
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// Use gzip encoding if possible
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if (HTTP_REQUEST_HTTP_VER_1_1 == $this->_http && extension_loaded('zlib')) {
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$this->addHeader('Accept-Encoding', 'gzip');
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}
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}
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/**
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* Generates a Host header for HTTP/1.1 requests
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*
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* @access private
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* @return string
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*/
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function _generateHostHeader()
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{
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if ($this->_url->port != 80 AND strcasecmp($this->_url->protocol, 'http') == 0) {
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$host = $this->_url->host . ':' . $this->_url->port;
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} elseif ($this->_url->port != 443 AND strcasecmp($this->_url->protocol, 'https') == 0) {
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$host = $this->_url->host . ':' . $this->_url->port;
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} elseif ($this->_url->port == 443 AND strcasecmp($this->_url->protocol, 'https') == 0 AND strpos($this->_url->url, ':443') !== false) {
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$host = $this->_url->host . ':' . $this->_url->port;
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} else {
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$host = $this->_url->host;
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}
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return $host;
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}
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/**
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* Resets the object to its initial state (DEPRECATED).
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* Takes the same parameters as the constructor.
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*
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* @param string $url The url to be requested
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* @param array $params Associative array of parameters
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* (see constructor for details)
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* @access public
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* @deprecated deprecated since 1.2, call the constructor if this is necessary
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*/
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function reset($url, $params = array())
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{
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$this->HTTP_Request($url, $params);
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}
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/**
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* Sets the URL to be requested
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*
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* @param string The url to be requested
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* @access public
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*/
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function setURL($url)
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{
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$this->_url = &new Net_URL($url, $this->_useBrackets);
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if (!empty($this->_url->user) || !empty($this->_url->pass)) {
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$this->setBasicAuth($this->_url->user, $this->_url->pass);
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}
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if (HTTP_REQUEST_HTTP_VER_1_1 == $this->_http) {
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$this->addHeader('Host', $this->_generateHostHeader());
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}
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// set '/' instead of empty path rather than check later (see bug #8662)
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if (empty($this->_url->path)) {
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$this->_url->path = '/';
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}
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}
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/**
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* Returns the current request URL
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*
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* @return string Current request URL
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* @access public
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*/
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function getUrl()
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{
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return empty($this->_url)? '': $this->_url->getUrl();
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}
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/**
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* Sets a proxy to be used
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*
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* @param string Proxy host
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* @param int Proxy port
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* @param string Proxy username
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* @param string Proxy password
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* @access public
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*/
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function setProxy($host, $port = 8080, $user = null, $pass = null)
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{
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$this->_proxy_host = $host;
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$this->_proxy_port = $port;
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$this->_proxy_user = $user;
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$this->_proxy_pass = $pass;
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if (!empty($user)) {
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$this->addHeader('Proxy-Authorization', 'Basic ' . base64_encode($user . ':' . $pass));
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}
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}
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/**
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* Sets basic authentication parameters
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*
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* @param string Username
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* @param string Password
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*/
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function setBasicAuth($user, $pass)
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{
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$this->_user = $user;
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$this->_pass = $pass;
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$this->addHeader('Authorization', 'Basic ' . base64_encode($user . ':' . $pass));
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}
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|
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/**
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* Sets the method to be used, GET, POST etc.
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*
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* @param string Method to use. Use the defined constants for this
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* @access public
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*/
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function setMethod($method)
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{
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$this->_method = $method;
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}
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|
|
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/**
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* Sets the HTTP version to use, 1.0 or 1.1
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*
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* @param string Version to use. Use the defined constants for this
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* @access public
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*/
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function setHttpVer($http)
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{
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$this->_http = $http;
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}
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|
|
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/**
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* Adds a request header
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|
*
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* @param string Header name
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* @param string Header value
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* @access public
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*/
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function addHeader($name, $value)
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{
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$this->_requestHeaders[strtolower($name)] = $value;
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}
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|
|
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/**
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* Removes a request header
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|
*
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* @param string Header name to remove
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* @access public
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*/
|
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function removeHeader($name)
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{
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if (isset($this->_requestHeaders[strtolower($name)])) {
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unset($this->_requestHeaders[strtolower($name)]);
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}
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}
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|
|
|
/**
|
|
* Adds a querystring parameter
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|
*
|
|
* @param string Querystring parameter name
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|
* @param string Querystring parameter value
|
|
* @param bool Whether the value is already urlencoded or not, default = not
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* @access public
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*/
|
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function addQueryString($name, $value, $preencoded = false)
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|
{
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$this->_url->addQueryString($name, $value, $preencoded);
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}
|
|
|
|
/**
|
|
* Sets the querystring to literally what you supply
|
|
*
|
|
* @param string The querystring data. Should be of the format foo=bar&x=y etc
|
|
* @param bool Whether data is already urlencoded or not, default = already encoded
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* @access public
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*/
|
|
function addRawQueryString($querystring, $preencoded = true)
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{
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$this->_url->addRawQueryString($querystring, $preencoded);
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}
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|
|
|
/**
|
|
* Adds postdata items
|
|
*
|
|
* @param string Post data name
|
|
* @param string Post data value
|
|
* @param bool Whether data is already urlencoded or not, default = not
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* @access public
|
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*/
|
|
function addPostData($name, $value, $preencoded = false)
|
|
{
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|
if ($preencoded) {
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$this->_postData[$name] = $value;
|
|
} else {
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$this->_postData[$name] = $this->_arrayMapRecursive('urlencode', $value);
|
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}
|
|
}
|
|
|
|
/**
|
|
* Recursively applies the callback function to the value
|
|
*
|
|
* @param mixed Callback function
|
|
* @param mixed Value to process
|
|
* @access private
|
|
* @return mixed Processed value
|
|
*/
|
|
function _arrayMapRecursive($callback, $value)
|
|
{
|
|
if (!is_array($value)) {
|
|
return call_user_func($callback, $value);
|
|
} else {
|
|
$map = array();
|
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foreach ($value as $k => $v) {
|
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$map[$k] = $this->_arrayMapRecursive($callback, $v);
|
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}
|
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return $map;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Adds a file to form-based file upload
|
|
*
|
|
* Used to emulate file upload via a HTML form. The method also sets
|
|
* Content-Type of HTTP request to 'multipart/form-data'.
|
|
*
|
|
* If you just want to send the contents of a file as the body of HTTP
|
|
* request you should use setBody() method.
|
|
*
|
|
* @access public
|
|
* @param string name of file-upload field
|
|
* @param mixed file name(s)
|
|
* @param mixed content-type(s) of file(s) being uploaded
|
|
* @return bool true on success
|
|
* @throws PEAR_Error
|
|
*/
|
|
function addFile($inputName, $fileName, $contentType = 'application/octet-stream')
|
|
{
|
|
if (!is_array($fileName) && !is_readable($fileName)) {
|
|
return PEAR::raiseError("File '{$fileName}' is not readable", HTTP_REQUEST_ERROR_FILE);
|
|
} elseif (is_array($fileName)) {
|
|
foreach ($fileName as $name) {
|
|
if (!is_readable($name)) {
|
|
return PEAR::raiseError("File '{$name}' is not readable", HTTP_REQUEST_ERROR_FILE);
|
|
}
|
|
}
|
|
}
|
|
$this->addHeader('Content-Type', 'multipart/form-data');
|
|
$this->_postFiles[$inputName] = array(
|
|
'name' => $fileName,
|
|
'type' => $contentType
|
|
);
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Adds raw postdata (DEPRECATED)
|
|
*
|
|
* @param string The data
|
|
* @param bool Whether data is preencoded or not, default = already encoded
|
|
* @access public
|
|
* @deprecated deprecated since 1.3.0, method setBody() should be used instead
|
|
*/
|
|
function addRawPostData($postdata, $preencoded = true)
|
|
{
|
|
$this->_body = $preencoded ? $postdata : urlencode($postdata);
|
|
}
|
|
|
|
/**
|
|
* Sets the request body (for POST, PUT and similar requests)
|
|
*
|
|
* @param string Request body
|
|
* @access public
|
|
*/
|
|
function setBody($body)
|
|
{
|
|
$this->_body = $body;
|
|
}
|
|
|
|
/**
|
|
* Clears any postdata that has been added (DEPRECATED).
|
|
*
|
|
* Useful for multiple request scenarios.
|
|
*
|
|
* @access public
|
|
* @deprecated deprecated since 1.2
|
|
*/
|
|
function clearPostData()
|
|
{
|
|
$this->_postData = null;
|
|
}
|
|
|
|
/**
|
|
* Appends a cookie to "Cookie:" header
|
|
*
|
|
* @param string $name cookie name
|
|
* @param string $value cookie value
|
|
* @access public
|
|
*/
|
|
function addCookie($name, $value)
|
|
{
|
|
$cookies = isset($this->_requestHeaders['cookie']) ? $this->_requestHeaders['cookie']. '; ' : '';
|
|
$this->addHeader('Cookie', $cookies . $name . '=' . $value);
|
|
}
|
|
|
|
/**
|
|
* Clears any cookies that have been added (DEPRECATED).
|
|
*
|
|
* Useful for multiple request scenarios
|
|
*
|
|
* @access public
|
|
* @deprecated deprecated since 1.2
|
|
*/
|
|
function clearCookies()
|
|
{
|
|
$this->removeHeader('Cookie');
|
|
}
|
|
|
|
/**
|
|
* Sends the request
|
|
*
|
|
* @access public
|
|
* @param bool Whether to store response body in Response object property,
|
|
* set this to false if downloading a LARGE file and using a Listener
|
|
* @return mixed PEAR error on error, true otherwise
|
|
*/
|
|
function sendRequest($saveBody = true)
|
|
{
|
|
if (!is_a($this->_url, 'Net_URL')) {
|
|
return PEAR::raiseError('No URL given', HTTP_REQUEST_ERROR_URL);
|
|
}
|
|
|
|
$host = isset($this->_proxy_host) ? $this->_proxy_host : $this->_url->host;
|
|
$port = isset($this->_proxy_port) ? $this->_proxy_port : $this->_url->port;
|
|
|
|
if (strcasecmp($this->_url->protocol, 'https') == 0) {
|
|
// Bug #14127, don't try connecting to HTTPS sites without OpenSSL
|
|
if (version_compare(PHP_VERSION, '4.3.0', '<') || !extension_loaded('openssl')) {
|
|
return PEAR::raiseError('Need PHP 4.3.0 or later with OpenSSL support for https:// requests',
|
|
HTTP_REQUEST_ERROR_URL);
|
|
} elseif (isset($this->_proxy_host)) {
|
|
return PEAR::raiseError('HTTPS proxies are not supported', HTTP_REQUEST_ERROR_PROXY);
|
|
}
|
|
$host = 'ssl://' . $host;
|
|
}
|
|
|
|
// magic quotes may fuck up file uploads and chunked response processing
|
|
$magicQuotes = ini_get('magic_quotes_runtime');
|
|
ini_set('magic_quotes_runtime', false);
|
|
|
|
// RFC 2068, section 19.7.1: A client MUST NOT send the Keep-Alive
|
|
// connection token to a proxy server...
|
|
if (isset($this->_proxy_host) && !empty($this->_requestHeaders['connection']) &&
|
|
'Keep-Alive' == $this->_requestHeaders['connection'])
|
|
{
|
|
$this->removeHeader('connection');
|
|
}
|
|
|
|
$keepAlive = (HTTP_REQUEST_HTTP_VER_1_1 == $this->_http && empty($this->_requestHeaders['connection'])) ||
|
|
(!empty($this->_requestHeaders['connection']) && 'Keep-Alive' == $this->_requestHeaders['connection']);
|
|
$sockets = &PEAR::getStaticProperty('HTTP_Request', 'sockets');
|
|
$sockKey = $host . ':' . $port;
|
|
unset($this->_sock);
|
|
|
|
// There is a connected socket in the "static" property?
|
|
if ($keepAlive && !empty($sockets[$sockKey]) &&
|
|
!empty($sockets[$sockKey]->fp))
|
|
{
|
|
$this->_sock =& $sockets[$sockKey];
|
|
$err = null;
|
|
} else {
|
|
$this->_notify('connect');
|
|
$this->_sock =& new Net_Socket();
|
|
$err = $this->_sock->connect($host, $port, null, $this->_timeout, $this->_socketOptions);
|
|
}
|
|
PEAR::isError($err) or $err = $this->_sock->write($this->_buildRequest());
|
|
|
|
if (!PEAR::isError($err)) {
|
|
if (!empty($this->_readTimeout)) {
|
|
$this->_sock->setTimeout($this->_readTimeout[0], $this->_readTimeout[1]);
|
|
}
|
|
|
|
$this->_notify('sentRequest');
|
|
|
|
// Read the response
|
|
$this->_response = &new HTTP_Response($this->_sock, $this->_listeners);
|
|
$err = $this->_response->process(
|
|
$this->_saveBody && $saveBody,
|
|
HTTP_REQUEST_METHOD_HEAD != $this->_method
|
|
);
|
|
|
|
if ($keepAlive) {
|
|
$keepAlive = (isset($this->_response->_headers['content-length'])
|
|
|| (isset($this->_response->_headers['transfer-encoding'])
|
|
&& strtolower($this->_response->_headers['transfer-encoding']) == 'chunked'));
|
|
if ($keepAlive) {
|
|
if (isset($this->_response->_headers['connection'])) {
|
|
$keepAlive = strtolower($this->_response->_headers['connection']) == 'keep-alive';
|
|
} else {
|
|
$keepAlive = 'HTTP/'.HTTP_REQUEST_HTTP_VER_1_1 == $this->_response->_protocol;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
ini_set('magic_quotes_runtime', $magicQuotes);
|
|
|
|
if (PEAR::isError($err)) {
|
|
return $err;
|
|
}
|
|
|
|
if (!$keepAlive) {
|
|
$this->disconnect();
|
|
// Store the connected socket in "static" property
|
|
} elseif (empty($sockets[$sockKey]) || empty($sockets[$sockKey]->fp)) {
|
|
$sockets[$sockKey] =& $this->_sock;
|
|
}
|
|
|
|
// Check for redirection
|
|
if ( $this->_allowRedirects
|
|
AND $this->_redirects <= $this->_maxRedirects
|
|
AND $this->getResponseCode() > 300
|
|
AND $this->getResponseCode() < 399
|
|
AND !empty($this->_response->_headers['location'])) {
|
|
|
|
|
|
$redirect = $this->_response->_headers['location'];
|
|
|
|
// Absolute URL
|
|
if (preg_match('/^https?:\/\//i', $redirect)) {
|
|
$this->_url = &new Net_URL($redirect);
|
|
$this->addHeader('Host', $this->_generateHostHeader());
|
|
// Absolute path
|
|
} elseif ($redirect{0} == '/') {
|
|
$this->_url->path = $redirect;
|
|
|
|
// Relative path
|
|
} elseif (substr($redirect, 0, 3) == '../' OR substr($redirect, 0, 2) == './') {
|
|
if (substr($this->_url->path, -1) == '/') {
|
|
$redirect = $this->_url->path . $redirect;
|
|
} else {
|
|
$redirect = dirname($this->_url->path) . '/' . $redirect;
|
|
}
|
|
$redirect = Net_URL::resolvePath($redirect);
|
|
$this->_url->path = $redirect;
|
|
|
|
// Filename, no path
|
|
} else {
|
|
if (substr($this->_url->path, -1) == '/') {
|
|
$redirect = $this->_url->path . $redirect;
|
|
} else {
|
|
$redirect = dirname($this->_url->path) . '/' . $redirect;
|
|
}
|
|
$this->_url->path = $redirect;
|
|
}
|
|
|
|
$this->_redirects++;
|
|
return $this->sendRequest($saveBody);
|
|
|
|
// Too many redirects
|
|
} elseif ($this->_allowRedirects AND $this->_redirects > $this->_maxRedirects) {
|
|
return PEAR::raiseError('Too many redirects', HTTP_REQUEST_ERROR_REDIRECTS);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Disconnect the socket, if connected. Only useful if using Keep-Alive.
|
|
*
|
|
* @access public
|
|
*/
|
|
function disconnect()
|
|
{
|
|
if (!empty($this->_sock) && !empty($this->_sock->fp)) {
|
|
$this->_notify('disconnect');
|
|
$this->_sock->disconnect();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns the response code
|
|
*
|
|
* @access public
|
|
* @return mixed Response code, false if not set
|
|
*/
|
|
function getResponseCode()
|
|
{
|
|
return isset($this->_response->_code) ? $this->_response->_code : false;
|
|
}
|
|
|
|
/**
|
|
* Returns the response reason phrase
|
|
*
|
|
* @access public
|
|
* @return mixed Response reason phrase, false if not set
|
|
*/
|
|
function getResponseReason()
|
|
{
|
|
return isset($this->_response->_reason) ? $this->_response->_reason : false;
|
|
}
|
|
|
|
/**
|
|
* Returns either the named header or all if no name given
|
|
*
|
|
* @access public
|
|
* @param string The header name to return, do not set to get all headers
|
|
* @return mixed either the value of $headername (false if header is not present)
|
|
* or an array of all headers
|
|
*/
|
|
function getResponseHeader($headername = null)
|
|
{
|
|
if (!isset($headername)) {
|
|
return isset($this->_response->_headers)? $this->_response->_headers: array();
|
|
} else {
|
|
$headername = strtolower($headername);
|
|
return isset($this->_response->_headers[$headername]) ? $this->_response->_headers[$headername] : false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns the body of the response
|
|
*
|
|
* @access public
|
|
* @return mixed response body, false if not set
|
|
*/
|
|
function getResponseBody()
|
|
{
|
|
return isset($this->_response->_body) ? $this->_response->_body : false;
|
|
}
|
|
|
|
/**
|
|
* Returns cookies set in response
|
|
*
|
|
* @access public
|
|
* @return mixed array of response cookies, false if none are present
|
|
*/
|
|
function getResponseCookies()
|
|
{
|
|
return isset($this->_response->_cookies) ? $this->_response->_cookies : false;
|
|
}
|
|
|
|
/**
|
|
* Builds the request string
|
|
*
|
|
* @access private
|
|
* @return string The request string
|
|
*/
|
|
function _buildRequest()
|
|
{
|
|
$separator = ini_get('arg_separator.output');
|
|
ini_set('arg_separator.output', '&');
|
|
$querystring = ($querystring = $this->_url->getQueryString()) ? '?' . $querystring : '';
|
|
ini_set('arg_separator.output', $separator);
|
|
|
|
$host = isset($this->_proxy_host) ? $this->_url->protocol . '://' . $this->_url->host : '';
|
|
$port = (isset($this->_proxy_host) AND $this->_url->port != 80) ? ':' . $this->_url->port : '';
|
|
$path = $this->_url->path . $querystring;
|
|
$url = $host . $port . $path;
|
|
|
|
if (!strlen($url)) {
|
|
$url = '/';
|
|
}
|
|
|
|
$request = $this->_method . ' ' . $url . ' HTTP/' . $this->_http . "\r\n";
|
|
|
|
if (in_array($this->_method, $this->_bodyDisallowed) ||
|
|
(0 == strlen($this->_body) && (HTTP_REQUEST_METHOD_POST != $this->_method ||
|
|
(empty($this->_postData) && empty($this->_postFiles)))))
|
|
{
|
|
$this->removeHeader('Content-Type');
|
|
} else {
|
|
if (empty($this->_requestHeaders['content-type'])) {
|
|
// Add default content-type
|
|
$this->addHeader('Content-Type', 'application/x-www-form-urlencoded');
|
|
} elseif ('multipart/form-data' == $this->_requestHeaders['content-type']) {
|
|
$boundary = 'HTTP_Request_' . md5(uniqid('request') . microtime());
|
|
$this->addHeader('Content-Type', 'multipart/form-data; boundary=' . $boundary);
|
|
}
|
|
}
|
|
|
|
// Request Headers
|
|
if (!empty($this->_requestHeaders)) {
|
|
foreach ($this->_requestHeaders as $name => $value) {
|
|
$canonicalName = implode('-', array_map('ucfirst', explode('-', $name)));
|
|
$request .= $canonicalName . ': ' . $value . "\r\n";
|
|
}
|
|
}
|
|
|
|
// Method does not allow a body, simply add a final CRLF
|
|
if (in_array($this->_method, $this->_bodyDisallowed)) {
|
|
|
|
$request .= "\r\n";
|
|
|
|
// Post data if it's an array
|
|
} elseif (HTTP_REQUEST_METHOD_POST == $this->_method &&
|
|
(!empty($this->_postData) || !empty($this->_postFiles))) {
|
|
|
|
// "normal" POST request
|
|
if (!isset($boundary)) {
|
|
$postdata = implode('&', array_map(
|
|
create_function('$a', 'return $a[0] . \'=\' . $a[1];'),
|
|
$this->_flattenArray('', $this->_postData)
|
|
));
|
|
|
|
// multipart request, probably with file uploads
|
|
} else {
|
|
$postdata = '';
|
|
if (!empty($this->_postData)) {
|
|
$flatData = $this->_flattenArray('', $this->_postData);
|
|
foreach ($flatData as $item) {
|
|
$postdata .= '--' . $boundary . "\r\n";
|
|
$postdata .= 'Content-Disposition: form-data; name="' . $item[0] . '"';
|
|
$postdata .= "\r\n\r\n" . urldecode($item[1]) . "\r\n";
|
|
}
|
|
}
|
|
foreach ($this->_postFiles as $name => $value) {
|
|
if (is_array($value['name'])) {
|
|
$varname = $name . ($this->_useBrackets? '[]': '');
|
|
} else {
|
|
$varname = $name;
|
|
$value['name'] = array($value['name']);
|
|
}
|
|
foreach ($value['name'] as $key => $filename) {
|
|
$fp = fopen($filename, 'r');
|
|
$basename = basename($filename);
|
|
$type = is_array($value['type'])? @$value['type'][$key]: $value['type'];
|
|
|
|
$postdata .= '--' . $boundary . "\r\n";
|
|
$postdata .= 'Content-Disposition: form-data; name="' . $varname . '"; filename="' . $basename . '"';
|
|
$postdata .= "\r\nContent-Type: " . $type;
|
|
$postdata .= "\r\n\r\n" . fread($fp, filesize($filename)) . "\r\n";
|
|
fclose($fp);
|
|
}
|
|
}
|
|
$postdata .= '--' . $boundary . "--\r\n";
|
|
}
|
|
$request .= 'Content-Length: ' .
|
|
(HTTP_REQUEST_MBSTRING? mb_strlen($postdata, 'iso-8859-1'): strlen($postdata)) .
|
|
"\r\n\r\n";
|
|
$request .= $postdata;
|
|
|
|
// Explicitly set request body
|
|
} elseif (0 < strlen($this->_body)) {
|
|
|
|
$request .= 'Content-Length: ' .
|
|
(HTTP_REQUEST_MBSTRING? mb_strlen($this->_body, 'iso-8859-1'): strlen($this->_body)) .
|
|
"\r\n\r\n";
|
|
$request .= $this->_body;
|
|
|
|
// No body: send a Content-Length header nonetheless (request #12900),
|
|
// but do that only for methods that require a body (bug #14740)
|
|
} else {
|
|
|
|
if (in_array($this->_method, $this->_bodyRequired)) {
|
|
$request .= "Content-Length: 0\r\n";
|
|
}
|
|
$request .= "\r\n";
|
|
}
|
|
|
|
return $request;
|
|
}
|
|
|
|
/**
|
|
* Helper function to change the (probably multidimensional) associative array
|
|
* into the simple one.
|
|
*
|
|
* @param string name for item
|
|
* @param mixed item's values
|
|
* @return array array with the following items: array('item name', 'item value');
|
|
* @access private
|
|
*/
|
|
function _flattenArray($name, $values)
|
|
{
|
|
if (!is_array($values)) {
|
|
return array(array($name, $values));
|
|
} else {
|
|
$ret = array();
|
|
foreach ($values as $k => $v) {
|
|
if (empty($name)) {
|
|
$newName = $k;
|
|
} elseif ($this->_useBrackets) {
|
|
$newName = $name . '[' . $k . ']';
|
|
} else {
|
|
$newName = $name;
|
|
}
|
|
$ret = array_merge($ret, $this->_flattenArray($newName, $v));
|
|
}
|
|
return $ret;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Adds a Listener to the list of listeners that are notified of
|
|
* the object's events
|
|
*
|
|
* Events sent by HTTP_Request object
|
|
* - 'connect': on connection to server
|
|
* - 'sentRequest': after the request was sent
|
|
* - 'disconnect': on disconnection from server
|
|
*
|
|
* Events sent by HTTP_Response object
|
|
* - 'gotHeaders': after receiving response headers (headers are passed in $data)
|
|
* - 'tick': on receiving a part of response body (the part is passed in $data)
|
|
* - 'gzTick': on receiving a gzip-encoded part of response body (ditto)
|
|
* - 'gotBody': after receiving the response body (passes the decoded body in $data if it was gzipped)
|
|
*
|
|
* @param HTTP_Request_Listener listener to attach
|
|
* @return boolean whether the listener was successfully attached
|
|
* @access public
|
|
*/
|
|
function attach(&$listener)
|
|
{
|
|
if (!is_a($listener, 'HTTP_Request_Listener')) {
|
|
return false;
|
|
}
|
|
$this->_listeners[$listener->getId()] =& $listener;
|
|
return true;
|
|
}
|
|
|
|
|
|
/**
|
|
* Removes a Listener from the list of listeners
|
|
*
|
|
* @param HTTP_Request_Listener listener to detach
|
|
* @return boolean whether the listener was successfully detached
|
|
* @access public
|
|
*/
|
|
function detach(&$listener)
|
|
{
|
|
if (!is_a($listener, 'HTTP_Request_Listener') ||
|
|
!isset($this->_listeners[$listener->getId()])) {
|
|
return false;
|
|
}
|
|
unset($this->_listeners[$listener->getId()]);
|
|
return true;
|
|
}
|
|
|
|
|
|
/**
|
|
* Notifies all registered listeners of an event.
|
|
*
|
|
* @param string Event name
|
|
* @param mixed Additional data
|
|
* @access private
|
|
* @see HTTP_Request::attach()
|
|
*/
|
|
function _notify($event, $data = null)
|
|
{
|
|
foreach (array_keys($this->_listeners) as $id) {
|
|
$this->_listeners[$id]->update($this, $event, $data);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Response class to complement the Request class
|
|
*
|
|
* @category HTTP
|
|
* @package HTTP_Request
|
|
* @author Richard Heyes <richard@phpguru.org>
|
|
* @author Alexey Borzov <avb@php.net>
|
|
* @version Release: 1.4.4
|
|
*/
|
|
class HTTP_Response
|
|
{
|
|
/**
|
|
* Socket object
|
|
* @var Net_Socket
|
|
*/
|
|
var $_sock;
|
|
|
|
/**
|
|
* Protocol
|
|
* @var string
|
|
*/
|
|
var $_protocol;
|
|
|
|
/**
|
|
* Return code
|
|
* @var string
|
|
*/
|
|
var $_code;
|
|
|
|
/**
|
|
* Response reason phrase
|
|
* @var string
|
|
*/
|
|
var $_reason;
|
|
|
|
/**
|
|
* Response headers
|
|
* @var array
|
|
*/
|
|
var $_headers;
|
|
|
|
/**
|
|
* Cookies set in response
|
|
* @var array
|
|
*/
|
|
var $_cookies;
|
|
|
|
/**
|
|
* Response body
|
|
* @var string
|
|
*/
|
|
var $_body = '';
|
|
|
|
/**
|
|
* Used by _readChunked(): remaining length of the current chunk
|
|
* @var string
|
|
*/
|
|
var $_chunkLength = 0;
|
|
|
|
/**
|
|
* Attached listeners
|
|
* @var array
|
|
*/
|
|
var $_listeners = array();
|
|
|
|
/**
|
|
* Bytes left to read from message-body
|
|
* @var null|int
|
|
*/
|
|
var $_toRead;
|
|
|
|
/**
|
|
* Constructor
|
|
*
|
|
* @param Net_Socket socket to read the response from
|
|
* @param array listeners attached to request
|
|
*/
|
|
function HTTP_Response(&$sock, &$listeners)
|
|
{
|
|
$this->_sock =& $sock;
|
|
$this->_listeners =& $listeners;
|
|
}
|
|
|
|
|
|
/**
|
|
* Processes a HTTP response
|
|
*
|
|
* This extracts response code, headers, cookies and decodes body if it
|
|
* was encoded in some way
|
|
*
|
|
* @access public
|
|
* @param bool Whether to store response body in object property, set
|
|
* this to false if downloading a LARGE file and using a Listener.
|
|
* This is assumed to be true if body is gzip-encoded.
|
|
* @param bool Whether the response can actually have a message-body.
|
|
* Will be set to false for HEAD requests.
|
|
* @throws PEAR_Error
|
|
* @return mixed true on success, PEAR_Error in case of malformed response
|
|
*/
|
|
function process($saveBody = true, $canHaveBody = true)
|
|
{
|
|
do {
|
|
$line = $this->_sock->readLine();
|
|
if (!preg_match('!^(HTTP/\d\.\d) (\d{3})(?: (.+))?!', $line, $s)) {
|
|
return PEAR::raiseError('Malformed response', HTTP_REQUEST_ERROR_RESPONSE);
|
|
} else {
|
|
$this->_protocol = $s[1];
|
|
$this->_code = intval($s[2]);
|
|
$this->_reason = empty($s[3])? null: $s[3];
|
|
}
|
|
while ('' !== ($header = $this->_sock->readLine())) {
|
|
$this->_processHeader($header);
|
|
}
|
|
} while (100 == $this->_code);
|
|
|
|
$this->_notify('gotHeaders', $this->_headers);
|
|
|
|
// RFC 2616, section 4.4:
|
|
// 1. Any response message which "MUST NOT" include a message-body ...
|
|
// is always terminated by the first empty line after the header fields
|
|
// 3. ... If a message is received with both a
|
|
// Transfer-Encoding header field and a Content-Length header field,
|
|
// the latter MUST be ignored.
|
|
$canHaveBody = $canHaveBody && $this->_code >= 200 &&
|
|
$this->_code != 204 && $this->_code != 304;
|
|
|
|
// If response body is present, read it and decode
|
|
$chunked = isset($this->_headers['transfer-encoding']) && ('chunked' == $this->_headers['transfer-encoding']);
|
|
$gzipped = isset($this->_headers['content-encoding']) && ('gzip' == $this->_headers['content-encoding']);
|
|
$hasBody = false;
|
|
if ($canHaveBody && ($chunked || !isset($this->_headers['content-length']) ||
|
|
0 != $this->_headers['content-length']))
|
|
{
|
|
if ($chunked || !isset($this->_headers['content-length'])) {
|
|
$this->_toRead = null;
|
|
} else {
|
|
$this->_toRead = $this->_headers['content-length'];
|
|
}
|
|
while (!$this->_sock->eof() && (is_null($this->_toRead) || 0 < $this->_toRead)) {
|
|
if ($chunked) {
|
|
$data = $this->_readChunked();
|
|
} elseif (is_null($this->_toRead)) {
|
|
$data = $this->_sock->read(4096);
|
|
} else {
|
|
$data = $this->_sock->read(min(4096, $this->_toRead));
|
|
$this->_toRead -= HTTP_REQUEST_MBSTRING? mb_strlen($data, 'iso-8859-1'): strlen($data);
|
|
}
|
|
if ('' == $data && (!$this->_chunkLength || $this->_sock->eof())) {
|
|
break;
|
|
} else {
|
|
$hasBody = true;
|
|
if ($saveBody || $gzipped) {
|
|
$this->_body .= $data;
|
|
}
|
|
$this->_notify($gzipped? 'gzTick': 'tick', $data);
|
|
}
|
|
}
|
|
}
|
|
|
|
if ($hasBody) {
|
|
// Uncompress the body if needed
|
|
if ($gzipped) {
|
|
$body = $this->_decodeGzip($this->_body);
|
|
if (PEAR::isError($body)) {
|
|
return $body;
|
|
}
|
|
$this->_body = $body;
|
|
$this->_notify('gotBody', $this->_body);
|
|
} else {
|
|
$this->_notify('gotBody');
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
/**
|
|
* Processes the response header
|
|
*
|
|
* @access private
|
|
* @param string HTTP header
|
|
*/
|
|
function _processHeader($header)
|
|
{
|
|
if (false === strpos($header, ':')) {
|
|
return;
|
|
}
|
|
list($headername, $headervalue) = explode(':', $header, 2);
|
|
$headername = strtolower($headername);
|
|
$headervalue = ltrim($headervalue);
|
|
|
|
if ('set-cookie' != $headername) {
|
|
if (isset($this->_headers[$headername])) {
|
|
$this->_headers[$headername] .= ',' . $headervalue;
|
|
} else {
|
|
$this->_headers[$headername] = $headervalue;
|
|
}
|
|
} else {
|
|
$this->_parseCookie($headervalue);
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Parse a Set-Cookie header to fill $_cookies array
|
|
*
|
|
* @access private
|
|
* @param string value of Set-Cookie header
|
|
*/
|
|
function _parseCookie($headervalue)
|
|
{
|
|
$cookie = array(
|
|
'expires' => null,
|
|
'domain' => null,
|
|
'path' => null,
|
|
'secure' => false
|
|
);
|
|
|
|
// Only a name=value pair
|
|
if (!strpos($headervalue, ';')) {
|
|
$pos = strpos($headervalue, '=');
|
|
$cookie['name'] = trim(substr($headervalue, 0, $pos));
|
|
$cookie['value'] = trim(substr($headervalue, $pos + 1));
|
|
|
|
// Some optional parameters are supplied
|
|
} else {
|
|
$elements = explode(';', $headervalue);
|
|
$pos = strpos($elements[0], '=');
|
|
$cookie['name'] = trim(substr($elements[0], 0, $pos));
|
|
$cookie['value'] = trim(substr($elements[0], $pos + 1));
|
|
|
|
for ($i = 1; $i < count($elements); $i++) {
|
|
if (false === strpos($elements[$i], '=')) {
|
|
$elName = trim($elements[$i]);
|
|
$elValue = null;
|
|
} else {
|
|
list ($elName, $elValue) = array_map('trim', explode('=', $elements[$i]));
|
|
}
|
|
$elName = strtolower($elName);
|
|
if ('secure' == $elName) {
|
|
$cookie['secure'] = true;
|
|
} elseif ('expires' == $elName) {
|
|
$cookie['expires'] = str_replace('"', '', $elValue);
|
|
} elseif ('path' == $elName || 'domain' == $elName) {
|
|
$cookie[$elName] = urldecode($elValue);
|
|
} else {
|
|
$cookie[$elName] = $elValue;
|
|
}
|
|
}
|
|
}
|
|
$this->_cookies[] = $cookie;
|
|
}
|
|
|
|
|
|
/**
|
|
* Read a part of response body encoded with chunked Transfer-Encoding
|
|
*
|
|
* @access private
|
|
* @return string
|
|
*/
|
|
function _readChunked()
|
|
{
|
|
// at start of the next chunk?
|
|
if (0 == $this->_chunkLength) {
|
|
$line = $this->_sock->readLine();
|
|
if (preg_match('/^([0-9a-f]+)/i', $line, $matches)) {
|
|
$this->_chunkLength = hexdec($matches[1]);
|
|
// Chunk with zero length indicates the end
|
|
if (0 == $this->_chunkLength) {
|
|
$this->_sock->readLine(); // make this an eof()
|
|
return '';
|
|
}
|
|
} else {
|
|
return '';
|
|
}
|
|
}
|
|
$data = $this->_sock->read($this->_chunkLength);
|
|
$this->_chunkLength -= HTTP_REQUEST_MBSTRING? mb_strlen($data, 'iso-8859-1'): strlen($data);
|
|
if (0 == $this->_chunkLength) {
|
|
$this->_sock->readLine(); // Trailing CRLF
|
|
}
|
|
return $data;
|
|
}
|
|
|
|
|
|
/**
|
|
* Notifies all registered listeners of an event.
|
|
*
|
|
* @param string Event name
|
|
* @param mixed Additional data
|
|
* @access private
|
|
* @see HTTP_Request::_notify()
|
|
*/
|
|
function _notify($event, $data = null)
|
|
{
|
|
foreach (array_keys($this->_listeners) as $id) {
|
|
$this->_listeners[$id]->update($this, $event, $data);
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Decodes the message-body encoded by gzip
|
|
*
|
|
* The real decoding work is done by gzinflate() built-in function, this
|
|
* method only parses the header and checks data for compliance with
|
|
* RFC 1952
|
|
*
|
|
* @access private
|
|
* @param string gzip-encoded data
|
|
* @return string decoded data
|
|
*/
|
|
function _decodeGzip($data)
|
|
{
|
|
if (HTTP_REQUEST_MBSTRING) {
|
|
$oldEncoding = mb_internal_encoding();
|
|
mb_internal_encoding('iso-8859-1');
|
|
}
|
|
$length = strlen($data);
|
|
// If it doesn't look like gzip-encoded data, don't bother
|
|
if (18 > $length || strcmp(substr($data, 0, 2), "\x1f\x8b")) {
|
|
return $data;
|
|
}
|
|
$method = ord(substr($data, 2, 1));
|
|
if (8 != $method) {
|
|
return PEAR::raiseError('_decodeGzip(): unknown compression method', HTTP_REQUEST_ERROR_GZIP_METHOD);
|
|
}
|
|
$flags = ord(substr($data, 3, 1));
|
|
if ($flags & 224) {
|
|
return PEAR::raiseError('_decodeGzip(): reserved bits are set', HTTP_REQUEST_ERROR_GZIP_DATA);
|
|
}
|
|
|
|
// header is 10 bytes minimum. may be longer, though.
|
|
$headerLength = 10;
|
|
// extra fields, need to skip 'em
|
|
if ($flags & 4) {
|
|
if ($length - $headerLength - 2 < 8) {
|
|
return PEAR::raiseError('_decodeGzip(): data too short', HTTP_REQUEST_ERROR_GZIP_DATA);
|
|
}
|
|
$extraLength = unpack('v', substr($data, 10, 2));
|
|
if ($length - $headerLength - 2 - $extraLength[1] < 8) {
|
|
return PEAR::raiseError('_decodeGzip(): data too short', HTTP_REQUEST_ERROR_GZIP_DATA);
|
|
}
|
|
$headerLength += $extraLength[1] + 2;
|
|
}
|
|
// file name, need to skip that
|
|
if ($flags & 8) {
|
|
if ($length - $headerLength - 1 < 8) {
|
|
return PEAR::raiseError('_decodeGzip(): data too short', HTTP_REQUEST_ERROR_GZIP_DATA);
|
|
}
|
|
$filenameLength = strpos(substr($data, $headerLength), chr(0));
|
|
if (false === $filenameLength || $length - $headerLength - $filenameLength - 1 < 8) {
|
|
return PEAR::raiseError('_decodeGzip(): data too short', HTTP_REQUEST_ERROR_GZIP_DATA);
|
|
}
|
|
$headerLength += $filenameLength + 1;
|
|
}
|
|
// comment, need to skip that also
|
|
if ($flags & 16) {
|
|
if ($length - $headerLength - 1 < 8) {
|
|
return PEAR::raiseError('_decodeGzip(): data too short', HTTP_REQUEST_ERROR_GZIP_DATA);
|
|
}
|
|
$commentLength = strpos(substr($data, $headerLength), chr(0));
|
|
if (false === $commentLength || $length - $headerLength - $commentLength - 1 < 8) {
|
|
return PEAR::raiseError('_decodeGzip(): data too short', HTTP_REQUEST_ERROR_GZIP_DATA);
|
|
}
|
|
$headerLength += $commentLength + 1;
|
|
}
|
|
// have a CRC for header. let's check
|
|
if ($flags & 1) {
|
|
if ($length - $headerLength - 2 < 8) {
|
|
return PEAR::raiseError('_decodeGzip(): data too short', HTTP_REQUEST_ERROR_GZIP_DATA);
|
|
}
|
|
$crcReal = 0xffff & crc32(substr($data, 0, $headerLength));
|
|
$crcStored = unpack('v', substr($data, $headerLength, 2));
|
|
if ($crcReal != $crcStored[1]) {
|
|
return PEAR::raiseError('_decodeGzip(): header CRC check failed', HTTP_REQUEST_ERROR_GZIP_CRC);
|
|
}
|
|
$headerLength += 2;
|
|
}
|
|
// unpacked data CRC and size at the end of encoded data
|
|
$tmp = unpack('V2', substr($data, -8));
|
|
$dataCrc = $tmp[1];
|
|
$dataSize = $tmp[2];
|
|
|
|
// finally, call the gzinflate() function
|
|
// don't pass $dataSize to gzinflate, see bugs #13135, #14370
|
|
$unpacked = gzinflate(substr($data, $headerLength, -8));
|
|
if (false === $unpacked) {
|
|
return PEAR::raiseError('_decodeGzip(): gzinflate() call failed', HTTP_REQUEST_ERROR_GZIP_READ);
|
|
} elseif ($dataSize != strlen($unpacked)) {
|
|
return PEAR::raiseError('_decodeGzip(): data size check failed', HTTP_REQUEST_ERROR_GZIP_READ);
|
|
} elseif ((0xffffffff & $dataCrc) != (0xffffffff & crc32($unpacked))) {
|
|
return PEAR::raiseError('_decodeGzip(): data CRC check failed', HTTP_REQUEST_ERROR_GZIP_CRC);
|
|
}
|
|
if (HTTP_REQUEST_MBSTRING) {
|
|
mb_internal_encoding($oldEncoding);
|
|
}
|
|
return $unpacked;
|
|
}
|
|
} // End class HTTP_Response
|
|
?>
|