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new bridge: AutoPodcasterBridge

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if you have a feed of a radio show which does not seem to be a valid
podcast, this bridge will transformt it into a valid podcast
This commit is contained in:
boyska 2019-09-17 12:31:06 +02:00
parent 36147a082d
commit 5c9becfcff
1 changed files with 93 additions and 0 deletions
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bridges/AutoPodcasterBridge.php Normal file
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<?php
class AutoPodcasterBridge extends FeedExpander {
const MAINTAINER='boyska';
const NAME='Auto Podcaster';
const URI = '';
const CACHE_TIMEOUT = 0;
const DESCRIPTION='Crea un podcast multimediale a partire da un feed normale';
const PARAMETERS = array('url' => array(
'url' => array(
'name' => 'URL',
'required' => true
)));
private function archiveIsAudioFormat($formatString) {
return strpos($formatString, 'MP3') !== false ||
strpos($formatString, 'Ogg') === 0;
}
protected function parseItem($newItem){
$item = parent::parseItem($newItem);
$dom = getSimpleHTMLDOMCached($item['uri']);
$audios = [];
/* 1st extraction method: by "audio" tag */
foreach($dom->find('audio') as $audioEl) {
$sources = [];
if($audioEl->src !== false) {
$sources[] = $audioEl->src;
}
foreach($audioEl->find('source') as $sourceEl) {
$sources[] = $sourceEl->src;
}
if($sources) {
$audios[$sources[0]] = ['sources' => [$sources]];
}
}
/* 2nd extraction method: by "iframe" tag */
foreach($dom->find('iframe') as $iframeEl) {
if(strpos($iframeEl->src, "https://archive.org/embed/") === 0) {
$listURL = preg_replace("/\/embed\//", "/details/", $iframeEl->src, 1) . "?output=json";
$baseURL = preg_replace("/\/embed\//", "/download/", $iframeEl->src, 1);
$list = json_decode(file_get_contents($listURL));
$audios = [];
foreach($list->files as $name =>$data) {
if($data->source === 'original' &&
$this->archiveIsAudioFormat($data->format)) {
$audios[$baseURL . $name] = ['sources' => [$baseURL . $name]];
}
}
foreach($list->files as $name =>$data) {
if($data->source === 'derivative' &&
$this->archiveIsAudioFormat($data->format) &&
isset($audios[$baseURL . "/" . $data->original])) {
$audios[$baseURL . "/" . $data->original]['sources'][] = $baseURL . $name;
}
}
}
}
if(count($audios) === 0) {
return null;
}
$item['enclosures'] = array_values($audios);
$item['enclosures'] = [];
foreach(array_values($audios) as $audio) {
$item['enclosures'][] = $audio['sources'][0];
}
return $item;
}
public function collectData(){
if($this->getInput('url') && substr($this->getInput('url'), 0, strlen('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.');
}
$this->collectExpandableDatas($this->getURI());
}
public function getName(){
if(!is_null($this->getInput('url'))) {
return self::NAME . ' : ' . $this->getInput('url');
}
return parent::getName();
}
public function getURI(){
return $this->getInput('url');
}
}