68 lines
2.6 KiB
PHP
68 lines
2.6 KiB
PHP
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<?php
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/**
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* A class providing facilities for RSS expansion. The goal here is to facilitate, as much as possible, writing bridges such as FreeNews, Gawker and other ones
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* @name RssExpander
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* @description Un bridge générique d'expansion automatique de contenu RSS ... pour tous ces sites qui ont un flux RSS mochement tonqué.
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* @update 15/03/2015
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* @use1(url="URL du flux dont vous souhaitez le contenu complet")
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*/
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abstract class RssExpander extends HttpCachingBridgeAbstract{
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protected $name;
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private $uri;
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private $description;
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public function collectData(array $param){
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if (empty($param['url'])) {
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$this->returnError('There is no $param[\'url\'] for this RSS expander', 404);
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}
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// $this->message("Loading from ".$param['url']);
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// Notice WE DO NOT use cache here on purpose : we want a fresh view of the RSS stream each time
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$rssContent = simplexml_load_file($param['url']) or $this->returnError('Could not request '.$param['url'], 404);
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// $this->message("loaded RSS from ".$param['url']);
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// TODO insert RSS format detection
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// we suppose for now, we have some RSS 2.0
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$this->collect_RSS_2_0_data($rssContent);
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}
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private function collect_RSS_2_0_data($rssContent) {
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$rssContent = $rssContent->channel[0];
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// $this->message("RSS content is ===========\n".var_export($rssContent, true)."===========");
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$this->load_RSS_2_0_feed_data($rssContent);
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foreach($rssContent->item as $item) {
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// $this->message("parsing item ".var_export($item, true));
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$this->items[] = $this->parseRSSItem($item);
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}
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}
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protected function RSS_2_0_time_to_timestamp($item) {
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return DateTime::createFromFormat('D, d M Y H:i:s e', $item->pubDate)->getTimestamp();
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}
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// TODO set title, link, description, language, and so on
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protected function load_RSS_2_0_feed_data($rssContent) {
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$this->name = trim($rssContent->title);
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$this->uri = trim($rssContent->link);
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$this->description = trim($rssContent->description);
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}
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/**
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* Method should return, from a source RSS item given by lastRSS, one of our Items objects
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* @param $item the input rss item
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* @return a RSS-Bridge Item, with (hopefully) the whole content)
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*/
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abstract protected function parseRSSItem($item);
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public function getName(){
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return $this->name;
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}
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public function getURI(){
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return $this->uri;
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}
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public function getDescription() {
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return $this->description;
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}
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}
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