139 lines
No EOL
5.1 KiB
PHP
139 lines
No EOL
5.1 KiB
PHP
<?php
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/**
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* This is a kind of example class how to do a oembed provider for a service, that doesn't support oembed.
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* This provider reads the Posterous API to resolve post.ly links. If the result is an image or a video, the XML result
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* will be converted as an OEmbed
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*
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* Converting is done in the getEmbed function. This is the main code.
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* Everything else is only type converting that should be nearly the same in any custom provider
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*
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* All *.class.php files found in the customs directory will be included automatically
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*
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* After implementing the provider you have to add it to the providers.xml like this:
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* <provider>
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* <name>Posterous post.ly</name>
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* <url>http://post.ly/*</url>
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* <class>PostlyProvider</class>
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* </provider>
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*
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* @author Grischa Brockhaus
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*
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*/
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class PostlyProvider extends EmbedProvider {
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/**
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* This is the main function calling the Posterous postly API and converting it into a OEmbed object
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* @param string $url post.ly url
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* @return OEmbed the embed object
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*/
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public function getEmbed($url){
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if(preg_match("/post\.ly\/([\w-]+)/",$url,$matches)){
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$post_id=$matches[1];
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}
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if (empty($post_id)) return null;
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$api_fetch = "http://posterous.com/api/getpost?id=" . $post_id;
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$xml = simplexml_load_string(file_get_contents($api_fetch));
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$rsp_attributes = $xml->attributes();
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if ($rsp_attributes['stat']!="ok") return null;
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$post = $xml->post;
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if (!empty($post->media)) {
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$mtype = (string)$post->media->type[0];
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//print_r($medium);
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if ($mtype=='video') {
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$medium = $post->media;
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$oembed = new VideoEmbed();
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$oembed->type='video';
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$oembed->url=(string)$medium->url;
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$oembed->html=(string)$post->body;
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$oembed->thumbnail_url=(string)$medium->thumb;
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if (!empty($medium->mp4)) $oembed->url = (string)$medium->mp4;
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}
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elseif ($mtype=='image') {
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$medium = $post->media->medium[0];
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$oembed = new PhotoEmbed();
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$oembed->type="photo";
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$oembed->url=(string)$medium->url;
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$oembed->width=(string)$medium->width;
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$oembed->height=(string)$medium->height;
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}
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else {
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$oembed = new LinkEmbed();
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$oembed->type="link";
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$oembed->html=(string)$post->body;
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$oembed->description=(string)$post->body;
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$oembed->url=(string)$post->link;
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$oembed->thumbnail_url=(string)$post->authorpic;
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}
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}
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else {
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$oembed = new LinkEmbed();
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$oembed->type="link";
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$oembed->html=(string)$post->body;
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$oembed->description=(string)$post->body;
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$oembed->url=(string)$post->link;
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$oembed->thumbnail_url=(string)$post->authorpic;
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}
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$oembed->version='1.0';
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$oembed->provider_name="Posterous";
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$oembed->provider_url="http://posterous.com";
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$oembed->resource_url=(string)$post->link;
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$oembed->title = (string)$post->title;
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//$oembed->html = $post->body;
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$oembed->author_name = (string)$post->author;
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$oembed->author_pic = (string)$post->authorpic; // normaly unsupported
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return $oembed;
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}
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// === here comes the regular stuff for providers, what is very similar in any custom provider =========
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private function provideXML($url){
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$string="";
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$oembed = $this->getEmbed($url);
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if (isset($oembed)) {
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foreach($this->getEmbed($url) as $key=>$value){
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if(isset($value)&& $value!="") $string.=" <".$key.">".$value."</".$key.">\n";
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}
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$string="<oembed>\n".$string."</oembed>";
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}
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return $string;
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}
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private function provideObject($url){
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return $this->getEmbed($url);
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}
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private function provideJSON($url){
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$oembed = $this->getEmbed($url);
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if (isset($oembed)) return json_encode($this->getEmbed($url));
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else return null;
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}
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private function provideSerialized($url){
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$oembed = $this->getEmbed($url);
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if (isset($oembed)) return serialize($this->getEmbed($url));
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else return null;
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}
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public function provide($url,$format="json"){
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if($format=="xml"){
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return $this->provideXML($url);
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} else if ($format=="object"){
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return $this->provideObject($url);
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} else if ($format=="serialized"){
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return $this->provideSerialized($url);
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} else {
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return $this->provideJSON($url);;
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}
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}
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public function match($url) {
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return preg_match('/post\.ly\/([\w-]+)/',$url);
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}
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/**
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* Constructor
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* Enter description here ...
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* @param simplexml $config holds the entry in the providers.xml for this Provider. You can add more parameters parsed here
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*/
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public function __construct($config){
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parent::__construct("http://post.ly","");
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}
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} |