forked from blallo/rss-bridge
131 lines
4 KiB
PHP
131 lines
4 KiB
PHP
<?php
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define('WORDPRESS_TYPE_ATOM', 1); // Content is of type ATOM
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define('WORDPRESS_TYPE_RSS', 2); // Content is of type RSS
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class WordPressBridge extends HttpCachingBridgeAbstract {
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public $sitename; // Name of the site
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const MAINTAINER = "aledeg";
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const NAME = "Wordpress Bridge";
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const URI = "https://wordpress.org/";
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const DESCRIPTION = "Returns the 3 newest full posts of a Wordpress blog";
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const PARAMETERS = array( array(
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'url'=>array(
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'name'=>'Blog URL',
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'required'=>true
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)
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));
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// Replaces all 'link' tags with 'url' for simplehtmldom to actually find 'links' ('url')
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private function ReplaceLinkTagsWithUrlTags($element){
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// We need to fix the 'link' tag as simplehtmldom cannot parse it (just rename it and load back as dom)
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$element_text = $element->outertext;
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$element_text = str_replace('<link>', '<url>', $element_text);
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$element_text = str_replace('</link>', '</url>', $element_text);
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$element_text = str_replace('<link ', '<url ', $element_text);
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return str_get_html($element_text);
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}
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private function StripCDATA($string) {
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$string = str_replace('<![CDATA[', '', $string);
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$string = str_replace(']]>', '', $string);
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return $string;
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}
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private function ClearContent($content) {
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$content = preg_replace('/<script[^>]*>[^<]*<\/script>/', '', $content);
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$content = preg_replace('/<div class="wpa".*/', '', $content);
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$content = preg_replace('/<form.*\/form>/', '', $content);
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return $content;
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}
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public function collectData(){
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$html = $this->getSimpleHTMLDOM($this->getURI().'/feed/atom')
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or $this->returnServerError("Could not request ".$this->getURI().'/feed/atom');
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// Notice: We requested an ATOM feed, however some sites return RSS feeds instead!
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if($html->find('entry')){
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$type=WORDPRESS_TYPE_ATOM;
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}else if($html->find('item')){
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$type=WORDPRESS_TYPE_RSS;
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}else{
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$type=WORDPRESS_TYPE_ATOM; // Make ATOM default
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}
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if($type === WORDPRESS_TYPE_RSS)
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$posts = $html->find('item');
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else
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$posts = $html->find('entry');
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if(!empty($posts) ) {
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$this->sitename = $html->find('title', 0)->plaintext;
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$i=0;
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foreach ($posts as $article) {
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if($i < 3) {
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$item = array();
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$article = $this->ReplaceLinkTagsWithUrlTags($article);
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if($type === WORDPRESS_TYPE_RSS){
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$item['uri'] = $article->find('url', 0)->innertext; // 'link' => 'url'!
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$item['title'] = $article->find('title', 0)->plaintext;
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$item['author'] = trim($this->StripCDATA($article->find('dc:creator', 0)->innertext));
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$item['timestamp'] = strtotime($article->find('pubDate', 0)->innertext);
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} else {
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$item['uri'] = $article->find('url', 0)->getAttribute('href'); // 'link' => 'url'!
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$item['title'] = $this->StripCDATA($article->find('title', 0)->plaintext);
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$item['author'] = trim($article->find('author', 0)->innertext);
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$item['timestamp'] = strtotime($article->find('updated', 0)->innertext);
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}
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$article_html = $this->get_cached($item['uri']);
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// Attempt to find most common content div
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if(!isset($item['content'])){
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$article = $article_html->find('article', 0);
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if(!empty($article)){
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$item['content'] = $this->ClearContent($article->innertext);
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}
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}
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// another common content div
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if(!isset($item['content'])){
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$article = $article_html->find('.single-content', 0);
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if(!empty($article)){
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$item['content'] = $this->ClearContent($article->innertext);
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}
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}
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// for old WordPress themes without HTML5
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if(!isset($item['content'])){
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$article = $article_html->find('.post', 0);
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if(!empty($article)){
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$item['content'] = $this->ClearContent($article->innertext);
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}
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}
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$this->items[] = $item;
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$i++;
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}
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}
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} else {
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$this->returnServerError("Sorry, ".$this->getURI()." doesn't seem to be a Wordpress blog.");
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}
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}
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public function getURI(){
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return $this->getInput('url');
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}
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public function getName() {
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return "{$this->sitename} - Wordpress Bridge";
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}
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public function getCacheDuration() {
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return 3600*3; // 3 hours
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}
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}
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