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[WordPressBridge] make it FeedExpander

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Signed-off-by: Pierre Mazière <pierre.maziere@gmx.com>
This commit is contained in:
Pierre Mazière 2016-09-14 23:01:54 +02:00
parent 2744c13735
commit b5358d6cea
1 changed files with 34 additions and 100 deletions
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134
bridges/WordPressBridge.php
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@ -1,10 +1,7 @@
<?php
define('WORDPRESS_TYPE_ATOM', 1); // Content is of type ATOM
define('WORDPRESS_TYPE_RSS', 2); // Content is of type RSS
class WordPressBridge extends BridgeAbstract {
public $sitename; // Name of the site
class WordPressBridge extends FeedExpander {
const MAINTAINER = "aledeg";
const NAME = "Wordpress Bridge";
const URI = "https://wordpress.org/";
@ -17,112 +14,49 @@ class WordPressBridge extends BridgeAbstract {
)
));
// Replaces all 'link' tags with 'url' for simplehtmldom to actually find 'links' ('url')
private function ReplaceLinkTagsWithUrlTags($element){
// We need to fix the 'link' tag as simplehtmldom cannot parse it (just rename it and load back as dom)
$element_text = $element->outertext;
$element_text = str_replace('<link>', '<url>', $element_text);
$element_text = str_replace('</link>', '</url>', $element_text);
$element_text = str_replace('<link ', '<url ', $element_text);
return str_get_html($element_text);
}
private function StripCDATA($string) {
$string = str_replace('<![CDATA[', '', $string);
$string = str_replace(']]>', '', $string);
return $string;
}
private function ClearContent($content) {
private function clearContent($content) {
$content = preg_replace('/<script[^>]*>[^<]*<\/script>/', '', $content);
$content = preg_replace('/<div class="wpa".*/', '', $content);
$content = preg_replace('/<form.*\/form>/', '', $content);
return $content;
}
protected function parseItem($newItem){
$item=parent::parseItem($newItem);
$article_html = $this->getSimpleHTMLDOMCached($item['uri']);
$article=null;
switch(true){
case !is_null($article_html->find('article',0)):
// most common content div
$article = $article_html->find('article', 0);
break;
case !is_null($article_html->find('.single-content',0)):
// another common content div
$article = $article_html->find('.single-content', 0);
break;
case !is_null($article_html->find('.post',0)):
// for old WordPress themes without HTML5
$article = $article_html->find('.post', 0);
break;
}
if(!is_null($article)){
$item['content'] = $this->clearContent($article->innertext);
}
return $item;
}
public function collectData(){
$html = $this->getSimpleHTMLDOM($this->getURI().'/feed/atom')
or $this->returnServerError("Could not request ".$this->getURI().'/feed/atom');
// Notice: We requested an ATOM feed, however some sites return RSS feeds instead!
if($html->find('entry')){
$type=WORDPRESS_TYPE_ATOM;
}else if($html->find('item')){
$type=WORDPRESS_TYPE_RSS;
}else{
$type=WORDPRESS_TYPE_ATOM; // Make ATOM default
if(substr($this->getInput(url),0,srlen('http'))!=='http'){
// just in case someone find a way to access local files by playing with the url
returnClientError('The url parameter must either refer to http or https protocol.');
}
if($type === WORDPRESS_TYPE_RSS)
$posts = $html->find('item');
else
$posts = $html->find('entry');
$this->collectExpandableDatas($this->getURI().'/feed/atom');
if(!empty($posts) ) {
$this->sitename = $html->find('title', 0)->plaintext;
$i=0;
foreach ($posts as $article) {
if($i < 3) {
$item = array();
$article = $this->ReplaceLinkTagsWithUrlTags($article);
if($type === WORDPRESS_TYPE_RSS){
$item['uri'] = $article->find('url', 0)->innertext; // 'link' => 'url'!
$item['title'] = $article->find('title', 0)->plaintext;
$item['author'] = trim($this->StripCDATA($article->find('dc:creator', 0)->innertext));
$item['timestamp'] = strtotime($article->find('pubDate', 0)->innertext);
} else {
$item['uri'] = $article->find('url', 0)->getAttribute('href'); // 'link' => 'url'!
$item['title'] = $this->StripCDATA($article->find('title', 0)->plaintext);
$item['author'] = trim($article->find('author', 0)->innertext);
$item['timestamp'] = strtotime($article->find('updated', 0)->innertext);
}
$article_html = $this->getSimpleHTMLDOMCached($item['uri']);
// Attempt to find most common content div
if(!isset($item['content'])){
$article = $article_html->find('article', 0);
if(!empty($article)){
$item['content'] = $this->ClearContent($article->innertext);
}
}
// another common content div
if(!isset($item['content'])){
$article = $article_html->find('.single-content', 0);
if(!empty($article)){
$item['content'] = $this->ClearContent($article->innertext);
}
}
// for old WordPress themes without HTML5
if(!isset($item['content'])){
$article = $article_html->find('.post', 0);
if(!empty($article)){
$item['content'] = $this->ClearContent($article->innertext);
}
}
$this->items[] = $item;
$i++;
}
}
} else {
$this->returnServerError("Sorry, ".$this->getURI()." doesn't seem to be a Wordpress blog.");
}
}
public function getURI(){
return $this->getInput('url');
}
public function getName() {
return "{$this->sitename} - Wordpress Bridge";
}
public function getCacheDuration() {