forked from Wavyzz/dolibarr
8d206fdfb0
upgrade were not yet received. So we prepare for GPL by uniformizing licence text keys to GPL-3+. Will move later to AGPL if all answers are positive.
775 lines
24 KiB
PHP
Executable File
775 lines
24 KiB
PHP
Executable File
<?php
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/* Copyright (C) 2011-2012 Laurent Destailleur <eldy@users.sourceforge.net>
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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 3 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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/**
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* \file htdocs/core/class/rssparser.class.php
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* \ingroup core
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* \brief File of class to parse RSS feeds
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*/
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/**
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* Class to parse RSS files
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*/
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class RssParser
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{
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var $db;
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var $error;
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private $_format='';
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private $_urlRSS;
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private $_language;
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private $_generator;
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private $_copyright;
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private $_lastbuilddate;
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private $_imageurl;
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private $_link;
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private $_title;
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private $_description;
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private $_lastfetchdate; // Last successful fetch
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private $_rssarray=array();
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// For parsing with xmlparser
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var $stack = array(); // parser stack
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var $_CONTENT_CONSTRUCTS = array('content', 'summary', 'info', 'title', 'tagline', 'copyright');
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/**
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* Constructor
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*
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* @param DoliDB $db Database handler
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*/
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public function __construct($db)
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{
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$this->db=$db;
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}
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/**
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* getFormat
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*
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* @return string
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*/
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public function getFormat()
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{
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return $this->_format;
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}
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/**
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* getUrlRss
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*
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* @return string
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*/
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public function getUrlRss()
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{
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return $this->_urlRSS;
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}
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/**
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* getLanguage
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*
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* @return string
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*/
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public function getLanguage()
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{
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return $this->_language;
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}
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/**
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* getGenerator
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*
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* @return string
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*/
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public function getGenerator()
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{
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return $this->_generator;
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}
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/**
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* getCopyright
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*
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* @return string
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*/
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public function getCopyright()
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{
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return $this->_copyright;
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}
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/**
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* getLastBuildDate
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*
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* @return string
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*/
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public function getLastBuildDate()
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{
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return $this->_lastbuilddate;
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}
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/**
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* getImageUrl
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*
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* @return string
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*/
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public function getImageUrl()
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{
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return $this->_imageurl;
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}
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/**
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* getLink
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*
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* @return string
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*/
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public function getLink()
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{
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return $this->_link;
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}
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/**
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* getTitle
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*
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* @return string
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*/
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public function getTitle()
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{
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return $this->_title;
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}
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/**
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* getDescription
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*
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* @return string
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*/
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public function getDescription()
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{
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return $this->_description;
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}
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/**
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* getLastFetchDate
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*
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* @return string
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*/
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public function getLastFetchDate()
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{
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return $this->_lastfetchdate;
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}
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/**
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* getItems
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*
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* @return string
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*/
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public function getItems()
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{
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return $this->_rssarray;
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}
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/**
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* Parse rss URL
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*
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* @param string $urlRSS Url to parse
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* @param int $maxNb Max nb of records to get (0 for no limit)
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* @param int $cachedelay 0=No cache, nb of seconds we accept cache files (cachedir must also be defined)
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* @param strnig $cachedir Directory where to save cache file
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* @return int <0 if KO, >0 if OK
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*/
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public function parser($urlRSS, $maxNb=0, $cachedelay=60, $cachedir='')
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{
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global $conf;
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include_once DOL_DOCUMENT_ROOT.'/core/lib/files.lib.php';
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$str=''; // This will contain content of feed
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// Check parameters
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if (! dol_is_url($urlRSS))
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{
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$this->error="ErrorBadUrl";
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return -1;
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}
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$this->_urlRSS = $urlRSS;
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$newpathofdestfile=$cachedir.'/'.dol_hash($this->_urlRSS);
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$newmask='0644';
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//dol_syslog("RssPArser::parser parse url=".$urlRSS." => cache file=".$newpathofdestfile);
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$nowgmt = dol_now();
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// Search into cache
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$foundintocache=0;
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if ($cachedelay > 0 && $cachedir)
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{
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$filedate=dol_filemtime($newpathofdestfile);
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if ($filedate >= ($nowgmt - $cachedelay))
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{
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//dol_syslog("RssParser::parser cache file ".$newpathofdestfile." is not older than now - cachedelay (".$nowgmt." - ".$cachedelay.") so we use it.");
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$foundintocache=1;
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$this->_lastfetchdate=$filedate;
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}
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else
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{
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dol_syslog("RssParser::parser cache file ".$newpathofdestfile." is not found or older than now - cachedelay (".$nowgmt." - ".$cachedelay.") so we can't use it.");
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}
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}
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// Load file into $str
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if ($foundintocache) // Cache file found and is not too old
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{
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$str = file_get_contents($newpathofdestfile);
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}
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else
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{
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try {
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ini_set("user_agent","Dolibarr ERP-CRM RSS reader");
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ini_set("max_execution_time", $conf->global->MAIN_USE_RESPONSE_TIMEOUT);
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ini_set("default_socket_timeout", $conf->global->MAIN_USE_RESPONSE_TIMEOUT);
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$opts = array('http'=>array('method'=>"GET"));
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if (! empty($conf->global->MAIN_USE_CONNECT_TIMEOUT)) $opts['http']['timeout']=$conf->global->MAIN_USE_CONNECT_TIMEOUT;
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if (! empty($conf->global->MAIN_PROXY_USE)) $opts['http']['proxy']='tcp://'.$conf->global->MAIN_PROXY_HOST.':'.$conf->global->MAIN_PROXY_PORT;
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//var_dump($opts);exit;
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$context = stream_context_create($opts);
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// FIXME avoid error if no connection
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$str = file_get_contents($this->_urlRSS, false, $context);
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}
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catch (Exception $e) {
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print 'Error retrieving URL '.$this->urlRSS.' - '.$e->getMessage();
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}
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}
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// Convert $str into xml
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if (! empty($conf->global->EXTERNALRSS_USE_SIMPLEXML))
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{
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//print 'xx'.LIBXML_NOCDATA;
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libxml_use_internal_errors(false);
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$rss = simplexml_load_string($str, "SimpleXMLElement", LIBXML_NOCDATA);
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}
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else
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{
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$xmlparser=xml_parser_create('');
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if (!is_resource($xmlparser)) {
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$this->error="ErrorFailedToCreateParser"; return -1;
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}
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xml_set_object($xmlparser, $this);
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xml_set_element_handler($xmlparser, 'feed_start_element', 'feed_end_element');
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xml_set_character_data_handler($xmlparser, 'feed_cdata');
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$status = xml_parse($xmlparser, $str);
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xml_parser_free($xmlparser);
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$rss=$this;
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//var_dump($rss->_format);exit;
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}
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// If $rss loaded
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if ($rss)
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{
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// Save file into cache
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if (empty($foundintocache) && $cachedir)
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{
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dol_syslog("RssParser::parser cache file ".$newpathofdestfile." is saved onto disk.");
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if (! dol_is_dir($cachedir)) dol_mkdir($cachedir);
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$fp = fopen($newpathofdestfile, 'w');
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fwrite($fp, $str);
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fclose($fp);
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if (! empty($conf->global->MAIN_UMASK)) $newmask=$conf->global->MAIN_UMASK;
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@chmod($newpathofdestfile, octdec($newmask));
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$this->_lastfetchdate=$nowgmt;
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}
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unset($str); // Free memory
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if (empty($rss->_format)) // If format not detected automatically
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{
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$rss->_format='rss';
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if (empty($rss->channel)) $rss->_format='atom';
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}
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$items=array();
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// Save description entries
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if ($rss->_format == 'rss')
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{
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//var_dump($rss);
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if (! empty($conf->global->EXTERNALRSS_USE_SIMPLEXML))
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{
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if (!empty($rss->channel->language)) $this->_language = (string) $rss->channel->language;
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if (!empty($rss->channel->generator)) $this->_generator = (string) $rss->channel->generator;
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if (!empty($rss->channel->copyright)) $this->_copyright = (string) $rss->channel->copyright;
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if (!empty($rss->channel->lastbuilddate)) $this->_lastbuilddate = (string) $rss->channel->lastbuilddate;
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if (!empty($rss->channel->image->url[0])) $this->_imageurl = (string) $rss->channel->image->url[0];
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if (!empty($rss->channel->link)) $this->_link = (string) $rss->channel->link;
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if (!empty($rss->channel->title)) $this->_title = (string) $rss->channel->title;
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if (!empty($rss->channel->description)) $this->_description = (string) $rss->channel->description;
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}
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else
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{
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//var_dump($rss->channel);
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if (!empty($rss->channel['language'])) $this->_language = (string) $rss->channel['language'];
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if (!empty($rss->channel['generator'])) $this->_generator = (string) $rss->channel['generator'];
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if (!empty($rss->channel['copyright'])) $this->_copyright = (string) $rss->channel['copyright'];
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if (!empty($rss->channel['lastbuilddate'])) $this->_lastbuilddate = (string) $rss->channel['lastbuilddate'];
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if (!empty($rss->image['url'])) $this->_imageurl = (string) $rss->image['url'];
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if (!empty($rss->channel['link'])) $this->_link = (string) $rss->channel['link'];
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if (!empty($rss->channel['title'])) $this->_title = (string) $rss->channel['title'];
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if (!empty($rss->channel['description'])) $this->_description = (string) $rss->channel['description'];
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}
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if (! empty($conf->global->EXTERNALRSS_USE_SIMPLEXML)) $items=$rss->channel->item; // With simplexml
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else $items=$rss->items; // With xmlparse
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//var_dump($items);exit;
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}
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else if ($rss->_format == 'atom')
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{
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//var_dump($rss);
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if (! empty($conf->global->EXTERNALRSS_USE_SIMPLEXML))
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{
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if (!empty($rss->generator)) $this->_generator = (string) $rss->generator;
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if (!empty($rss->lastbuilddate)) $this->_lastbuilddate = (string) $rss->modified;
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if (!empty($rss->link->href)) $this->_link = (string) $rss->link->href;
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if (!empty($rss->title)) $this->_title = (string) $rss->title;
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if (!empty($rss->description)) $this->_description = (string) $rss->description;
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}
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else
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{
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//if (!empty($rss->channel['rss_language'])) $this->_language = (string) $rss->channel['rss_language'];
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if (!empty($rss->channel['generator'])) $this->_generator = (string) $rss->channel['generator'];
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//if (!empty($rss->channel['rss_copyright'])) $this->_copyright = (string) $rss->channel['rss_copyright'];
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if (!empty($rss->channel['modified'])) $this->_lastbuilddate = (string) $rss->channel['modified'];
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//if (!empty($rss->image['rss_url'])) $this->_imageurl = (string) $rss->image['rss_url'];
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if (!empty($rss->channel['link'])) $this->_link = (string) $rss->channel['link'];
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if (!empty($rss->channel['title'])) $this->_title = (string) $rss->channel['title'];
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//if (!empty($rss->channel['rss_description'])) $this->_description = (string) $rss->channel['rss_description'];
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}
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if (! empty($conf->global->EXTERNALRSS_USE_SIMPLEXML)) {
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$tmprss=xml2php($rss); $items=$tmprss['entry'];
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} // With simplexml
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else $items=$rss->items; // With xmlparse
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//var_dump($items);exit;
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}
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$i = 0;
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// Loop on each record
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if (is_array($items))
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{
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foreach($items as $item)
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{
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//var_dump($item);exit;
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if ($rss->_format == 'rss')
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{
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if (! empty($conf->global->EXTERNALRSS_USE_SIMPLEXML))
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{
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$itemLink = (string) $item->link;
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$itemTitle = (string) $item->title;
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$itemDescription = (string) $item->description;
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$itemPubDate = (string) $item->pubDate;
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$itemId = '';
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$itemAuthor = '';
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}
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else
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{
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$itemLink = (string) $item['link'];
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$itemTitle = (string) $item['title'];
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$itemDescription = (string) $item['description'];
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$itemPubDate = (string) $item['pubdate'];
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$itemId = (string) $item['guid'];
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$itemAuthor = (string) $item['author'];
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}
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// Loop on each category
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$itemCategory=array();
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if (is_array($item->category))
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{
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foreach ($item->category as $cat)
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{
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$itemCategory[] = (string) $cat;
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}
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}
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}
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else if ($rss->_format == 'atom')
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{
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if (! empty($conf->global->EXTERNALRSS_USE_SIMPLEXML))
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{
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$itemLink = (string) $item['link']['href'];
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$itemTitle = (string) $item['title'];
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$itemDescription = (string) $item['summary'];
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$itemPubDate = (string) $item['created'];
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$itemId = (string) $item['id'];
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$itemAuthor = (string) ($item['author']?$item['author']:$item['author_name']);
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}
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else
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{
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$itemLink = (string) $item['link']['href'];
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$itemTitle = (string) $item['title'];
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$itemDescription = (string) $item['summary'];
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$itemPubDate = (string) $item['created'];
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$itemId = (string) $item['id'];
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$itemAuthor = (string) ($item['author']?$item['author']:$item['author_name']);
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}
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}
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else print 'ErrorBadFeedFormat';
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// Add record to result array
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$this->_rssarray[$i] = array(
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'link'=>$itemLink,
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'title'=>$itemTitle,
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'description'=>$itemDescription,
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'pubDate'=>$itemPubDate,
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'category'=>$itemCategory,
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'id'=>$itemId,
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'author'=>$itemAuthor);
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//var_dump($this->_rssarray);
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$i++;
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if ($i > $maxNb) break; // We get all records we want
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}
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}
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return 1;
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}
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else
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{
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$this->error='ErrorFailedToLoadRSSFile';
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return -1;
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}
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}
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/**
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* Triggered when opened tag is found
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*
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* @param string $p Start
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* @param string $element Tag
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* @param array &$attrs Attributes of tags
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* @return void
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*/
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function feed_start_element($p, $element, &$attrs)
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{
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$el = $element = strtolower($element);
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$attrs = array_change_key_case($attrs, CASE_LOWER);
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// check for a namespace, and split if found
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$ns = false;
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if (strpos($element, ':'))
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{
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list($ns, $el) = explode(':', $element, 2);
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}
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if ( $ns and $ns != 'rdf' )
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{
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$this->current_namespace = $ns;
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}
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// if feed type isn't set, then this is first element of feed identify feed from root element
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if (empty($this->_format))
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{
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if ( $el == 'rdf' ) {
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$this->_format = 'rss';
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$this->feed_version = '1.0';
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}
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elseif ( $el == 'rss' ) {
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$this->_format = 'rss';
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$this->feed_version = $attrs['version'];
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}
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elseif ( $el == 'feed' ) {
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$this->_format = 'atom';
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$this->feed_version = $attrs['version'];
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$this->inchannel = true;
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}
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return;
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}
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if ( $el == 'channel' )
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{
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$this->inchannel = true;
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}
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elseif ($el == 'item' or $el == 'entry' )
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{
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$this->initem = true;
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if ( isset($attrs['rdf:about']) ) {
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$this->current_item['about'] = $attrs['rdf:about'];
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}
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}
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// if we're in the default namespace of an RSS feed,
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// record textinput or image fields
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elseif (
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$this->_format == 'rss' and
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$this->current_namespace == '' and
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$el == 'textinput' )
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{
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$this->intextinput = true;
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}
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elseif (
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$this->_format == 'rss' and
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$this->current_namespace == '' and
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$el == 'image' )
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{
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$this->inimage = true;
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}
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// handle atom content constructs
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elseif ( $this->_format == 'atom' and in_array($el, $this->_CONTENT_CONSTRUCTS) )
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{
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// avoid clashing w/ RSS mod_content
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if ($el == 'content' ) {
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$el = 'atom_content';
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}
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$this->incontent = $el;
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|
|
|
}
|
|
|
|
// if inside an Atom content construct (e.g. content or summary) field treat tags as text
|
|
elseif ($this->_format == 'atom' and $this->incontent )
|
|
{
|
|
// if tags are inlined, then flatten
|
|
$attrs_str = join(' ', array_map('map_attrs', array_keys($attrs), array_values($attrs)));
|
|
|
|
$this->append_content("<$element $attrs_str>");
|
|
|
|
array_unshift($this->stack, $el);
|
|
}
|
|
|
|
// Atom support many links per containging element.
|
|
// Magpie treats link elements of type rel='alternate'
|
|
// as being equivalent to RSS's simple link element.
|
|
//
|
|
elseif ($this->_format == 'atom' and $el == 'link' )
|
|
{
|
|
if ( isset($attrs['rel']) and $attrs['rel'] == 'alternate' )
|
|
{
|
|
$link_el = 'link';
|
|
}
|
|
else {
|
|
$link_el = 'link_' . $attrs['rel'];
|
|
}
|
|
|
|
$this->append($link_el, $attrs['href']);
|
|
}
|
|
// set stack[0] to current element
|
|
else {
|
|
array_unshift($this->stack, $el);
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Triggered when CDATA is found
|
|
*
|
|
* @param string $p P
|
|
* @param string $text Tag
|
|
* @return void
|
|
*/
|
|
function feed_cdata($p, $text)
|
|
{
|
|
if ($this->_format == 'atom' and $this->incontent)
|
|
{
|
|
$this->append_content($text);
|
|
}
|
|
else
|
|
{
|
|
$current_el = join('_', array_reverse($this->stack));
|
|
$this->append($current_el, $text);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Triggered when closed tag is found
|
|
*
|
|
* @param string $p P
|
|
* @param string $el Tag
|
|
* @return void
|
|
*/
|
|
function feed_end_element($p, $el)
|
|
{
|
|
$el = strtolower($el);
|
|
|
|
if ($el == 'item' or $el == 'entry')
|
|
{
|
|
$this->items[] = $this->current_item;
|
|
$this->current_item = array();
|
|
$this->initem = false;
|
|
}
|
|
elseif ($this->_format == 'rss' and $this->current_namespace == '' and $el == 'textinput' )
|
|
{
|
|
$this->intextinput = false;
|
|
}
|
|
elseif ($this->_format == 'rss' and $this->current_namespace == '' and $el == 'image' )
|
|
{
|
|
$this->inimage = false;
|
|
}
|
|
elseif ($this->_format == 'atom' and in_array($el, $this->_CONTENT_CONSTRUCTS) )
|
|
{
|
|
$this->incontent = false;
|
|
}
|
|
elseif ($el == 'channel' or $el == 'feed' )
|
|
{
|
|
$this->inchannel = false;
|
|
}
|
|
elseif ($this->_format == 'atom' and $this->incontent ) {
|
|
// balance tags properly
|
|
// note: i don't think this is actually neccessary
|
|
if ( $this->stack[0] == $el )
|
|
{
|
|
$this->append_content("</$el>");
|
|
}
|
|
else {
|
|
$this->append_content("<$el />");
|
|
}
|
|
|
|
array_shift($this->stack);
|
|
}
|
|
else {
|
|
array_shift($this->stack);
|
|
}
|
|
|
|
$this->current_namespace = false;
|
|
}
|
|
|
|
|
|
/**
|
|
* To concat 2 string with no warning if an operand is not defined
|
|
*
|
|
* @param string &$str1 Str1
|
|
* @param string $str2 Str2
|
|
* @return string String cancatenated
|
|
*/
|
|
function concat(&$str1, $str2="")
|
|
{
|
|
if (!isset($str1) ) {
|
|
$str1="";
|
|
}
|
|
$str1 .= $str2;
|
|
}
|
|
|
|
/**
|
|
* Enter description here ...
|
|
*
|
|
* @param string $text Text
|
|
* @return void
|
|
*/
|
|
function append_content($text)
|
|
{
|
|
if ( $this->initem ) {
|
|
$this->concat($this->current_item[ $this->incontent ], $text);
|
|
}
|
|
elseif ( $this->inchannel ) {
|
|
$this->concat($this->channel[ $this->incontent ], $text);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* smart append - field and namespace aware
|
|
*
|
|
* @param string $el El
|
|
* @param string $text Text
|
|
* @return void
|
|
*/
|
|
function append($el, $text)
|
|
{
|
|
if (!$el) {
|
|
return;
|
|
}
|
|
if ( $this->current_namespace )
|
|
{
|
|
if ( $this->initem ) {
|
|
$this->concat($this->current_item[ $this->current_namespace ][ $el ], $text);
|
|
}
|
|
elseif ($this->inchannel) {
|
|
$this->concat($this->channel[ $this->current_namespace][ $el ], $text);
|
|
}
|
|
elseif ($this->intextinput) {
|
|
$this->concat($this->textinput[ $this->current_namespace][ $el ], $text);
|
|
}
|
|
elseif ($this->inimage) {
|
|
$this->concat($this->image[ $this->current_namespace ][ $el ], $text);
|
|
}
|
|
}
|
|
else {
|
|
if ( $this->initem ) {
|
|
$this->concat($this->current_item[ $el ], $text);
|
|
}
|
|
elseif ($this->intextinput) {
|
|
$this->concat($this->textinput[ $el ], $text);
|
|
}
|
|
elseif ($this->inimage) {
|
|
$this->concat($this->image[ $el ], $text);
|
|
}
|
|
elseif ($this->inchannel) {
|
|
$this->concat($this->channel[ $el ], $text);
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
|
|
/**
|
|
* Function to convert an XML object into an array
|
|
*
|
|
* @param string $xml Xml
|
|
* @return void
|
|
*/
|
|
function xml2php($xml)
|
|
{
|
|
$fils = 0;
|
|
$tab = false;
|
|
$array = array();
|
|
foreach($xml->children() as $key => $value)
|
|
{
|
|
$child = xml2php($value);
|
|
|
|
//To deal with the attributes
|
|
foreach($value->attributes() as $ak=>$av)
|
|
{
|
|
$child[$ak] = (string) $av;
|
|
|
|
}
|
|
|
|
//Let see if the new child is not in the array
|
|
if($tab==false && in_array($key,array_keys($array)))
|
|
{
|
|
//If this element is already in the array we will create an indexed array
|
|
$tmp = $array[$key];
|
|
$array[$key] = NULL;
|
|
$array[$key][] = $tmp;
|
|
$array[$key][] = $child;
|
|
$tab = true;
|
|
}
|
|
elseif($tab == true)
|
|
{
|
|
//Add an element in an existing array
|
|
$array[$key][] = $child;
|
|
}
|
|
else
|
|
{
|
|
//Add a simple element
|
|
$array[$key] = $child;
|
|
}
|
|
|
|
$fils++;
|
|
}
|
|
|
|
|
|
if($fils==0)
|
|
{
|
|
return (string) $xml;
|
|
}
|
|
|
|
return $array;
|
|
|
|
}
|
|
|
|
?>
|