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Commit 933c59c4 authored by Laurent Destailleur's avatar Laurent Destailleur
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Rss parser can use xml_parse or simplexml functions

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htdocs/core/class/rssparser.class.php
+ 399
− 43
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......@@ -19,7 +19,7 @@
* \file htdocs/core/class/rssparser.class.php
* \ingroup core
* \brief File of class to parse rss feeds
* \version $Id: rssparser.class.php,v 1.3 2011/08/26 19:09:02 eldy Exp $
* \version $Id: rssparser.class.php,v 1.4 2011/08/26 22:38:27 eldy Exp $
*/
class RssParser
{
......@@ -53,6 +53,11 @@ class RssParser
public function getLastFetchDate() { return $this->_lastfetchdate; }
public function getItems() { return $this->_rssarray; }
// For parsing with xmlparser
var $stack = array(); // parser stack
/**
* Constructor
*/
......@@ -75,6 +80,8 @@ class RssParser
{
include_once(DOL_DOCUMENT_ROOT.'/lib/files.lib.php');
$str=''; // This will contain content of feed
// Check parameters
if (! dol_is_url($urlRSS))
{
......@@ -107,41 +114,54 @@ class RssParser
}
}
// Load file into $rss
// Load file into $str
if ($foundintocache) // Cache file found and is not too old
{
$str = file_get_contents($newpathofdestfile);
$rss = simplexml_load_string(unserialize($str));
}
else
{
try {
ini_set("user_agent","Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)");
ini_set("max_execution_time", 10);
if (! empty($conf->global->MAIN_SIMPLEXMLLOAD_DEBUG)) $rss = simplexml_load_file($this->_urlRSS);
else
{
//libxml_use_internal_errors(false);
$rss = @simplexml_load_file($this->_urlRSS);
}
$str = file_get_contents($this->_urlRSS);
}
catch (Exception $e) {
print 'Error retrieving URL '.$this->urlRSS.' - '.$e->getMessage();
}
}
// Convert $str into xml
if (! empty($conf->global->EXTERNALRSS_USE_SIMPLEXML))
{
//print 'xx'.LIBXML_NOCDATA;
libxml_use_internal_errors(false);
$rss = simplexml_load_string($str, "SimpleXMLElement", LIBXML_NOCDATA);
}
else
{
$xmlparser=xml_parser_create('');
if (!is_resource($xmlparser)) { $this->error="ErrorFailedToCreateParser"; return -1; }
xml_set_object( $xmlparser, $this );
xml_set_element_handler($xmlparser, 'feed_start_element', 'feed_end_element' );
xml_set_character_data_handler( $xmlparser, 'feed_cdata' );
$status = xml_parse( $xmlparser, $str );
xml_parser_free( $xmlparser );
$rss=$this;
//var_dump($this);exit;
}
// If $rss loaded
if ($rss)
{
$items=array();
// Save file into cache
if (empty($foundintocache) && $cachedir)
{
dol_syslog("RssParser::parser cache file ".$newpathofdestfile." is saved onto disk.");
if (! dol_is_dir($cachedir)) dol_mkdir($cachedir);
$fp = fopen($newpathofdestfile, 'w');
fwrite($fp, serialize($rss->asXML()));
fwrite($fp, $str);
fclose($fp);
if (! empty($conf->global->MAIN_UMASK)) $newmask=$conf->global->MAIN_UMASK;
@chmod($newpathofdestfile, octdec($newmask));
......@@ -149,60 +169,131 @@ class RssParser
$this->_lastfetchdate=$nowgmt;
}
$rss->_format='rss';
if (empty($rss->channel)) $rss->_format='atom';
unset($str); // Free memory
if (empty($rss->_format)) // If format not detected automatically
{
$rss->_format='rss';
if (empty($rss->channel)) $rss->_format='atom';
}
$items=array();
// Save description entries
if ($rss->_format == 'rss')
{
if (!empty($rss->channel->language)) $this->_language = (string) $rss->channel->language;
if (!empty($rss->channel->generator)) $this->_generator = (string) $rss->channel->generator;
if (!empty($rss->channel->copyright)) $this->_copyright = (string) $rss->channel->copyright;
if (!empty($rss->channel->lastbuilddate)) $this->_lastbuilddate = (string) $rss->channel->lastbuilddate;
if (!empty($rss->channel->image->url[0])) $this->_imageurl = (string) $rss->channel->image->url[0];
if (!empty($rss->channel->link)) $this->_link = (string) $rss->channel->link;
if (!empty($rss->channel->title)) $this->_title = (string) $rss->channel->title;
if (!empty($rss->channel->description)) $this->_description = (string) $rss->channel->description;
$items=$rss->channel->item;
//var_dump($rss);
if (! empty($conf->global->EXTERNALRSS_USE_SIMPLEXML))
{
if (!empty($rss->channel->language)) $this->_language = (string) $rss->channel->language;
if (!empty($rss->channel->generator)) $this->_generator = (string) $rss->channel->generator;
if (!empty($rss->channel->copyright)) $this->_copyright = (string) $rss->channel->copyright;
if (!empty($rss->channel->lastbuilddate)) $this->_lastbuilddate = (string) $rss->channel->lastbuilddate;
if (!empty($rss->channel->image->url[0])) $this->_imageurl = (string) $rss->channel->image->url[0];
if (!empty($rss->channel->link)) $this->_link = (string) $rss->channel->link;
if (!empty($rss->channel->title)) $this->_title = (string) $rss->channel->title;
if (!empty($rss->channel->description)) $this->_description = (string) $rss->channel->description;
}
else
{
if (!empty($rss->channel['rss_language'])) $this->_language = (string) $rss->channel['rss_language'];
if (!empty($rss->channel['rss_generator'])) $this->_generator = (string) $rss->channel['rss_generator'];
if (!empty($rss->channel['rss_copyright'])) $this->_copyright = (string) $rss->channel['rss_copyright'];
if (!empty($rss->channel['rss_lastbuilddate'])) $this->_lastbuilddate = (string) $rss->channel['rss_lastbuilddate'];
if (!empty($rss->image['rss_url'])) $this->_imageurl = (string) $rss->image['rss_url'];
if (!empty($rss->channel['rss_link'])) $this->_link = (string) $rss->channel['rss_link'];
if (!empty($rss->channel['rss_title'])) $this->_title = (string) $rss->channel['rss_title'];
if (!empty($rss->channel['rss_description'])) $this->_description = (string) $rss->channel['rss_description'];
}
if (! empty($conf->global->EXTERNALRSS_USE_SIMPLEXML)) $items=$rss->channel->item; // With simplexml
else $items=$rss->items; // With xmlparse
//var_dump($items);exit;
}
else if ($rss->_format == 'atom')
{
if (!empty($rss->generator)) $this->_generator = (string) $rss->generator;
if (!empty($rss->lastbuilddate)) $this->_lastbuilddate = (string) $rss->modified;
if (!empty($rss->link->href)) $this->_link = (string) $rss->link->href;
if (!empty($rss->title)) $this->_title = (string) $rss->title;
if (!empty($rss->description)) $this->_description = (string) $rss->description;
$tmprss=xml2php($rss);
$items=$tmprss['entry'];
if (! empty($conf->global->EXTERNALRSS_USE_SIMPLEXML))
{
if (!empty($rss->generator)) $this->_generator = (string) $rss->generator;
if (!empty($rss->lastbuilddate)) $this->_lastbuilddate = (string) $rss->modified;
if (!empty($rss->link->href)) $this->_link = (string) $rss->link->href;
if (!empty($rss->title)) $this->_title = (string) $rss->title;
if (!empty($rss->description)) $this->_description = (string) $rss->description;
}
else
{
if (!empty($rss->channel['rss_language'])) $this->_language = (string) $rss->channel['rss_language'];
if (!empty($rss->channel['rss_generator'])) $this->_generator = (string) $rss->channel['rss_generator'];
if (!empty($rss->channel['rss_copyright'])) $this->_copyright = (string) $rss->channel['rss_copyright'];
if (!empty($rss->channel['rss_lastbuilddate'])) $this->_lastbuilddate = (string) $rss->channel['rss_lastbuilddate'];
if (!empty($rss->image['rss_url'])) $this->_imageurl = (string) $rss->image['rss_url'];
if (!empty($rss->channel['rss_link'])) $this->_link = (string) $rss->channel['rss_link'];
if (!empty($rss->channel['rss_title'])) $this->_title = (string) $rss->channel['rss_title'];
if (!empty($rss->channel['rss_description'])) $this->_description = (string) $rss->channel['rss_description'];
}
if (! empty($conf->global->EXTERNALRSS_USE_SIMPLEXML)) { $tmprss=xml2php($rss); $items=$tmprss['entry'];} // With simplexml
else $items=$rss->items; // With xmlparse
//var_dump($items);exit;
}
$i = 0;
// Loop on each record
foreach($items as $item)
{
//var_dump($item);exit;
if ($rss->_format == 'rss')
{
$itemLink = (string) $item->link;
$itemTitle = (string) $item->title;
$itemDescription = (string) $item->description;
$itemPubDate = (string) $item->pubDate;
$itemId = '';
if (! empty($conf->global->EXTERNALRSS_USE_SIMPLEXML))
{
$itemLink = (string) $item->link;
$itemTitle = (string) $item->title;
$itemDescription = (string) $item->description;
$itemPubDate = (string) $item->pubDate;
$itemId = '';
$itemAuthor = '';
}
else
{
$itemLink = (string) $item['rss_link'];
$itemTitle = (string) $item['rss_title'];
$itemDescription = (string) $item['rss_description'];
$itemPubDate = (string) $item['rss_pubdate'];
$itemId = (string) $item['rss_guid'];
$itemAuthor = (string) $item['rss_author'];
}
// Loop on each category
$itemCategory=array();
foreach ($item->category as $cat)
if (is_array($item->category))
{
$itemCategory[] = (string) $cat;
foreach ($item->category as $cat)
{
$itemCategory[] = (string) $cat;
}
}
}
else if ($rss->_format == 'atom')
{
$itemLink = (string) $item['link']['href'];
$itemTitle = (string) $item['title'];
$itemDescription = (string) $item['summary'];
$itemPubDate = (string) $item['created'];
$itemId = (string) $item['id'];
if (! empty($conf->global->EXTERNALRSS_USE_SIMPLEXML))
{
$itemLink = (string) $item['link']['href'];
$itemTitle = (string) $item['title'];
$itemDescription = (string) $item['summary'];
$itemPubDate = (string) $item['created'];
$itemId = (string) $item['id'];
$itemAuthor = '';
}
else
{
$itemLink = (string) $item['rss_link'];
$itemTitle = (string) $item['rss_title'];
$itemDescription = (string) $item['rss_description'];
$itemPubDate = (string) $item['rss_pubdate'];
$itemId = (string) $item['rss_guid'];
$itemAuthor = (string) $item['rss_author'];
}
}
else print 'ErrorBadFeedFormat';
// Add record to result array
$this->_rssarray[$i] = array(
......@@ -211,7 +302,8 @@ class RssParser
'description'=>$itemDescription,
'pubDate'=>$itemPubDate,
'category'=>$itemCategory,
'id'=>$itemId);
'id'=>$itemId,
'author'=>$itemAuthor);
$i++;
......@@ -227,6 +319,270 @@ class RssParser
}
}
/**
* Triggered when opened tag is found
*
* @param $p
* @param $element Tag
* @param $attrs Attributes of tags
*/
function feed_start_element($p, $element, &$attrs)
{
$el = $element = strtolower($element);
$attrs = array_change_key_case($attrs, CASE_LOWER);
// check for a namespace, and split if found
$ns = false;
if ( strpos( $element, ':' ) ) {
list($ns, $el) = explode( ':', $element, 2);
}
if ( $ns and $ns != 'rdf' ) {
$this->current_namespace = $ns;
}
# if feed type isn't set, then this is first element of feed
# identify feed from root element
#
if (!isset($this->_format) ) {
if ( $el == 'rdf' ) {
$this->_format = 'rss';
$this->feed_version = '1.0';
}
elseif ( $el == 'rss' ) {
$this->_format = 'rss';
$this->feed_version = $attrs['version'];
}
elseif ( $el == 'feed' ) {
$this->_format = 'atom';
$this->feed_version = $attrs['version'];
$this->inchannel = true;
}
return;
}
if ( $el == 'channel' )
{
$this->inchannel = true;
}
elseif ($el == 'item' or $el == 'entry' )
{
$this->initem = true;
if ( isset($attrs['rdf:about']) ) {
$this->current_item['about'] = $attrs['rdf:about'];
}
}
// if we're in the default namespace of an RSS feed,
// record textinput or image fields
elseif (
$this->_format == 'rss' and
$this->current_namespace == '' and
$el == 'textinput' )
{
$this->intextinput = true;
}
elseif (
$this->_format == 'rss' and
$this->current_namespace == '' and
$el == 'image' )
{
$this->inimage = true;
}
# handle atom content constructs
elseif ( $this->_format == 'atom' and in_array($el, $this->_CONTENT_CONSTRUCTS) )
{
// avoid clashing w/ RSS mod_content
if ($el == 'content' ) {
$el = 'atom_content';
}
$this->incontent = $el;
}
// if inside an Atom content construct (e.g. content or summary) field treat tags as text
elseif ($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 $p
* @param $element Tag
* @param $attrs Attributes of tags
*/
function feed_cdata ($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 $p
* @param $element Tag
*/
function feed_end_element ($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 $str1
* @param $str2
*/
function concat (&$str1, $str2="") {
if (!isset($str1) ) {
$str1="";
}
$str1 .= $str2;
}
/**
*/
function append_content($text) {
if ( $this->initem ) {
$this->concat( $this->current_item[ $this->incontent ], $text );
}
elseif ( $this->inchannel ) {
$this->concat( $this->channel[ $this->incontent ], $text );
}
}
/**
* smart append - field and namespace aware
*/
function append($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 );
}
}
}
}
......
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