146 lines
3.9 KiB
PHP
146 lines
3.9 KiB
PHP
<?php
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class SoundCloudBridge extends BridgeAbstract {
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const MAINTAINER = 'kranack, Roliga';
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const NAME = 'Soundcloud Bridge';
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const URI = 'https://soundcloud.com/';
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const CACHE_TIMEOUT = 600; // 10min
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const DESCRIPTION = 'Returns 10 newest music from user profile';
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const PARAMETERS = array( array(
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'u' => array(
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'name' => 'username',
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'required' => true
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),
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't' => array(
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'name' => 'type',
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'type' => 'list',
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'defaultValue' => 'tracks',
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'values' => array(
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'Tracks' => 'tracks',
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'Playlists' => 'playlists'
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)
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)
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));
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private $feedIcon = null;
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private $clientIDCache = null;
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public function collectData(){
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$res = $this->apiGet('resolve', array(
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'url' => 'https://soundcloud.com/' . $this->getInput('u')
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)) or returnServerError('No results for this query');
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$this->feedIcon = $res->avatar_url;
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$tracks = $this->apiGet('users/' . urlencode($res->id) . '/' . $this->getInput('t'))->collection
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or returnServerError('No results for this user/playlist');
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$numTracks = min(count($tracks), 10);
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for($i = 0; $i < $numTracks; $i++) {
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$item = array();
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$item['author'] = $tracks[$i]->user->username;
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$item['title'] = $tracks[$i]->user->username . ' - ' . $tracks[$i]->title;
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$item['timestamp'] = strtotime($tracks[$i]->created_at);
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$item['content'] = nl2br($tracks[$i]->description);
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$item['enclosures'] = array($tracks[$i]->uri
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. '/stream?client_id='
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. $this->getClientID());
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$item['id'] = self::URI
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. urlencode($this->getInput('u'))
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. '/'
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. urlencode($tracks[$i]->permalink);
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$item['uri'] = self::URI
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. urlencode($this->getInput('u'))
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. '/'
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. urlencode($tracks[$i]->permalink);
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$this->items[] = $item;
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}
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}
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public function getIcon(){
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if ($this->feedIcon) {
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return $this->feedIcon;
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}
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return parent::getIcon();
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}
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public function getURI(){
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return 'https://soundcloud.com/' . $this->getInput('u');
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}
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public function getName(){
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if(!is_null($this->getInput('u'))) {
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return $this->getInput('u') . ' - ' . self::NAME;
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}
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return parent::getName();
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}
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private function initClientIDCache(){
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if($this->clientIDCache !== null)
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return;
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$cacheFac = new CacheFactory();
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$cacheFac->setWorkingDir(PATH_LIB_CACHES);
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$this->clientIDCache = $cacheFac->create(Configuration::getConfig('cache', 'type'));
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$this->clientIDCache->setScope(get_called_class());
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$this->clientIDCache->setKey(array('client_id'));
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}
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private function getClientID(){
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$this->initClientIDCache();
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$clientID = $this->clientIDCache->loadData();
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if($clientID == null) {
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return $this->refreshClientID();
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} else {
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return $clientID;
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}
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}
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private function refreshClientID(){
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$this->initClientIDCache();
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// Without url=http, this returns a 404
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$playerHTML = getContents('https://w.soundcloud.com/player/?url=http')
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or returnServerError('Unable to get player page.');
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$regex = '/widget-.+?\.js/';
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if(preg_match($regex, $playerHTML, $matches) == false)
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returnServerError('Unable to find widget JS URL.');
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$widgetURL = 'https://widget.sndcdn.com/' . $matches[0];
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$widgetJS = getContents($widgetURL)
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or returnServerError('Unable to get widget JS page.');
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$regex = '/client_id.*?"(.+?)"/';
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if(preg_match($regex, $widgetJS, $matches) == false)
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returnServerError('Unable to find client ID.');
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$clientID = $matches[1];
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$this->clientIDCache->saveData($clientID);
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return $clientID;
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}
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private function buildAPIURL($endpoint, $parameters){
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return 'https://api-v2.soundcloud.com/'
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. $endpoint
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. '?'
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. http_build_query($parameters);
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}
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private function apiGet($endpoint, $parameters = array()){
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$parameters['client_id'] = $this->getClientID();
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try {
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return json_decode(getContents($this->buildAPIURL($endpoint, $parameters)));
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} catch (Exception $e) {
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// Retry once with refreshed client ID
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$parameters['client_id'] = $this->refreshClientID();
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return json_decode(getContents($this->buildAPIURL($endpoint, $parameters)));
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}
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}
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}
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