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113 lines
3.8 KiB
PHP
113 lines
3.8 KiB
PHP
<?php // $id$
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/**
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* Moodle - Modular Object-Oriented Dynamic Learning Environment
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* http://moodle.org
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* Copyright (C) 1999 onwards Martin Dougiamas http://dougiamas.com
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* @package moodle
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* @subpackage lib
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* @author Dan Poltawski <talktodan@gmail.com>
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL
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*
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* Customised version of SimplePie for Moodle
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*/
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require_once($CFG->libdir.'/filelib.php');
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// PLEASE NOTE: we use the simplepie class _unmodified_
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// through the joys of OO. Distros are free to use their stock
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// version of this file.
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require_once($CFG->libdir.'/simplepie/simplepie.inc');
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/**
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* Moodle Customised version of the SimplePie class
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*
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* This class extends the stock SimplePie class
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* in order to make sensible configuration choices,
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* such as using the Moodle cache directory and
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* curl functions/proxy config for making http
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* requests.
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*/
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class moodle_simplepie extends SimplePie
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{
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function __construct($feed_url = null){
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global $CFG;
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// Use the Moodle class for http requests
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$this->file_class = 'moodle_simplepie_file';
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// Use sensible cache directory
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$cachedir = $CFG->dataroot.'/cache/simplepie/';
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if (!file_exists($cachedir)){
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mkdir($cachedir, 0777, true);
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}
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parent::__construct($feed_url, $cachedir);
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parent::set_output_encoding('UTF-8');
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}
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}
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/**
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* Moodle Customised version of the SimplePie_File class
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*
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* This class extends the stock SimplePie class
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* in order to utilise Moodles own curl class for making
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* http requests. By using the moodle curl class
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* we ensure that the correct proxy configuration is used.
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*/
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class moodle_simplepie_file extends SimplePie_File
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{
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/**
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* The contructor is a copy of the stock simplepie File class which has
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* been modifed to add in use the Moodle curl class rather than php curl
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* functions.
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*/
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function moodle_simplepie_file($url, $timeout = 10, $redirects = 5, $headers = null, $useragent = null, $force_fsockopen = false)
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{
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$this->url = $url;
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$this->method = SIMPLEPIE_FILE_SOURCE_REMOTE | SIMPLEPIE_FILE_SOURCE_CURL;
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$curl = new curl();
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$curl->setopt(array('CURLOPT_HEADER'=>true));
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try{
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$this->headers = $curl->get($url);
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}catch(moodle_exception $e){
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$this->error = 'cURL Error: '.$curl->error;
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$this->success = false;
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return false;
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}
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$parser =& new SimplePie_HTTP_Parser($this->headers);
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if ($parser->parse()){
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$this->headers = $parser->headers;
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$this->body = $parser->body;
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$this->status_code = $parser->status_code;
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if (($this->status_code == 300 || $this->status_code == 301 || $this->status_code == 302 || $this->status_code == 303 || $this->status_code == 307 || $this->status_code > 307 && $this->status_code < 400) && isset($this->headers['location']) && $this->redirects < $redirects)
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{
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$this->redirects++;
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$location = SimplePie_Misc::absolutize_url($this->headers['location'], $url);
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return $this->SimplePie_File($location, $timeout, $redirects, $headers);
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}
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}
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}
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}
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