├── Dockerfile
├── README.md
├── ardaudiothek-rss.php
├── docker-compose.yml
└── index.html


/Dockerfile:
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1 | FROM php:8.2-apache
2 | COPY ./ardaudiothek-rss.php /var/www/html/index.php
3 | 


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/README.md:
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 1 | # ARD Audiothek rss feed generator
 2 | 
 3 | ## Dependencies
 4 |  - php-curl
 5 | 
 6 | ## Usage
 7 | 
 8 | Simply pass the id of the show with the show parameter
 9 | 
10 | Show url: https://www.ardaudiothek.de/sendung/kalk-und-welk/10777871/
11 | 
12 | Id: 10777871
13 | 
14 | Feed url: https://example.com/ardaudiothek-rss.php?show=10777871
15 | 
16 | If you only want to receive the n newest episodes, pass the latest parameter too:
17 | 
18 | Feed url with 10 newest episodes: https://example.com/ardaudiothek-rss.php?show=10777871&latest=10
19 | 


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/ardaudiothek-rss.php:
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  1 | <?php
  2 | /*
  3 | Dependencies:
  4 |     php-curl
  5 | 
  6 | Usage:
  7 |     Simply pass the id of the show with the show parameter
  8 | 
  9 |     Show url: https://www.ardaudiothek.de/sendung/kalk-und-welk/10777871/
 10 |     Id: 10777871
 11 | 
 12 |     Feed url: https://example.com/ardaudiothek-rss.php?show=10777871
 13 | 
 14 |     If you only want to receive the n newest episodes, pass the first parameter too:
 15 | 
 16 |     Feed url with 10 latest episodes: https://example.com/ardaudiothek-rss.php?show=10777871&latest=10
 17 | */
 18 | 
 19 | header('Content-Type: text/xml; charset=utf-8');
 20 | 
 21 | $showId = isset($_GET['show']) ? filter_input(INPUT_GET, 'show', FILTER_SANITIZE_NUMBER_INT) : null;
 22 | $latest = filter_input(INPUT_GET, 'latest', FILTER_SANITIZE_NUMBER_INT) ?: 2147483647;
 23 | 
 24 | if(!is_numeric($showId) || !is_numeric($latest)){
 25 |     http_response_code(400);
 26 |     exit('<error>Invalid "show" parameter</error>');
 27 | }
 28 | $show = getShowJsonGraphql($showId, $latest);
 29 | 
 30 | 
 31 | print('<rss xmlns:atom="http://www.w3.org/2005/Atom" xmlns:media="http://search.yahoo.com/mrss/" xmlns:itunes="http://www.itunes.com/dtds/podcast-1.0.dtd" version="2.0">');
 32 | print('<channel>');
 33 | 
 34 | printf('<title>%s</title>', escapeString($show->title));
 35 | printf('<link>%s</link>', $show->sharingUrl);
 36 | 
 37 | 
 38 | print('<image>');
 39 | printf('<url>%s</url>', escapeString(str_replace("{width}", "448", $show->image->url1X1)));
 40 | printf('<title>%s</title>', escapeString($show->title));
 41 | printf('<link>https://www.ardaudiothek.de%s</link>', $show->path);
 42 | print('</image>');
 43 | 
 44 | printf('<description>%s</description>', escapeString($show->synopsis));
 45 | printf('<atom:link href="%s" rel="self" type="application/rss+xml"/>', "//{$_SERVER['HTTP_HOST']}".escapeString($_SERVER['REQUEST_URI']));
 46 | 
 47 | 
 48 | foreach ($show->items->nodes as $item) {
 49 |     $length = getFileLength($item->audios[0]->url);
 50 | 
 51 |     print('<item>');
 52 |     printf('<title>%s</title>', escapeString($item->title));
 53 |     printf('<description>%s</description>', escapeString($item->synopsis));
 54 |     printf('<guid>%s</guid>', escapeString($item->sharingUrl));
 55 |     printf('<link>%s</link>', escapeString($item->sharingUrl));
 56 |     printf('<enclosure url="%s" length="%d" type="audio/mpeg"/>', escapeString($item->audios[0]->url), $length);
 57 |     printf('<media:content url="%s" medium="audio" duration="%d" type="audio/mpeg"/>', escapeString($item->audios[0]->downloadUrl), $item->duration);
 58 |     printf('<pubDate>%s</pubDate>', (new DateTime($item->publicationStartDateAndTime))->format(DATE_RSS));
 59 |     printf('<itunes:duration>%d</itunes:duration>', $item->duration);
 60 | 
 61 |     print('<image>');
 62 |     printf('<url>%s</url>', escapeString(str_replace("{width}", "448", $item->image->url1X1)));
 63 |     printf('<title>%s</title>', escapeString($show->title));
 64 |     print('</image>');
 65 |     printf('<itunes:image href="%s"/>', escapeString(str_replace("{width}", "448", $item->image->url1X1)));
 66 | 
 67 |     print('</item>');
 68 | }
 69 | 
 70 | 
 71 | print('</channel>');
 72 | print('</rss>');
 73 | 
 74 | 
 75 | function getShowJson($showId) {
 76 |     $url_unvalidate = sprintf('https://api.ardaudiothek.de/programsets/%d', $showId);
 77 |     $url = filter_var($url_unvalidate, FILTER_VALIDATE_URL);
 78 |     if ($url) {
 79 |         $filesize = getFileLength($url);
 80 |     } else {
 81 |     exit ;
 82 |     }
 83 | 
 84 |     $ch = curl_init();
 85 | 
 86 |     curl_setopt($ch, CURLOPT_URL, $url);
 87 |     curl_setopt($ch, CURLOPT_HEADER, 0);
 88 |     curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
 89 | 
 90 | 
 91 |     $output = curl_exec($ch);
 92 | 
 93 |     $obj = json_decode($output);
 94 | 
 95 |     return $obj->data->programSet;
 96 | }
 97 | 
 98 | function getShowJsonGraphql($showId, $latest){
 99 | 	$url = 'https://api.ardaudiothek.de/graphql';
100 | 	
101 | 	$query='{"query":"{programSet(id:%d){title,path,synopsis,sharingUrl,image{url,url1X1,},items(orderBy:PUBLISH_DATE_DESC,filter:{isPublished:{equalTo:true}}first:%d){nodes{title,summary,synopsis,sharingUrl,publicationStartDateAndTime:publishDate,url,episodeNumber,duration,image{url,url1X1,},isPublished,audios{url,downloadUrl,size,mimeType,}}}}}"}';
102 | 
103 | 	$query = sprintf($query, $showId, $latest);
104 | 
105 | 	$headers = array();
106 | 	$headers[] = 'Content-Type: application/json';
107 | 	
108 | 	$ch = curl_init();
109 | 
110 | 	curl_setopt($ch, CURLOPT_URL, $url);
111 | 	curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
112 | 	curl_setopt($ch, CURLOPT_POSTFIELDS, $query);
113 | 	curl_setopt($ch, CURLOPT_POST, 1);
114 | 	curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
115 | 
116 | 	$output = curl_exec($ch);
117 | 	
118 | 	$obj = json_decode($output);
119 | 	
120 | 	return $obj->data->programSet;
121 | }
122 | 
123 | 
124 | function escapeString($string) {
125 |     return htmlspecialchars($string, ENT_QUOTES, 'UTF-8');
126 | }
127 | 
128 | function getFileLength($url) {
129 |     $headers = get_headers($url, 1);
130 |     if (isset($headers['Content-Length'])) {
131 |         $filesize = $headers['Content-Length'];
132 |     } else {
133 |         $filesize = -1;
134 |     }
135 |     return $filesize;
136 | }
137 | 


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/docker-compose.yml:
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 1 | version: '3.3'
 2 | 
 3 | services:
 4 |   application:
 5 |     build:
 6 |       context: .
 7 |       dockerfile: Dockerfile
 8 |     ports:
 9 |       - 8080:80
10 | 


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/index.html:
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 1 | <!DOCTYPE html>
 2 | <html>
 3 |   <head>
 4 |     <style>
 5 |         /* thanks to https://perfectmotherfuckingwebsite.com */
 6 |     body {
 7 |         max-width: 650px;
 8 |         margin: 40px auto;
 9 |         padding: 0 10px;
10 |         font: 18px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
11 |         color: #444
12 |     }
13 | 
14 |     @media (prefers-color-scheme: dark) {
15 |         body {
16 |             color: #c9d1d9;
17 |             background: #0d1117
18 |         }
19 | 
20 |         a:link {
21 |             color: #58a6ff
22 |         }
23 | 
24 |         a:visited {
25 |             color: #8e96f0
26 |         }
27 | 
28 |         input {
29 |             background: #282f3b;
30 |             border: none;
31 |         }
32 | 
33 |         input, select, textarea{
34 |             color: #c9d1d9;
35 |         }
36 |         
37 |     }
38 |     </style>
39 |     <title>Nutzung des Audiothek-RSS-Feed Generators</title>
40 |     <meta http-equiv="content-type" content="text/html; charset=utf-8" />
41 |     <!-- weitere Kopfinformationen -->
42 |     <!-- Kommentare werden im Browser nicht angezeigt. -->
43 |   </head>
44 |   <body>
45 |     <h1>Instruktionen</h1>
46 |     <p>Diese Seite kann einen RSS-Feed aus den Daten der ARD-Audiothek erzeugen. Dazu sind folgende Schritte nötig:</p>
47 |     <ul>
48 |         <li>Finde die ID des gewünschten Podcasts. Dies ist eine Zahlenfolge die am Ende der URL des Podcasts in der Audiothek hängt. Bspw 94702896 für den Podcast <a href="https://www.ardaudiothek.de/sendung/wild-wild-web-geschichten-aus-dem-internet/94702896/">Wild Wild Web</a> </li>
49 |         <li>Die folgende Datei öffnen und die ID dort hinter dem = einfügen: <a href="./ardaudiothek-rss.php?show=">ardaudiothek-rss</a>. </li>
50 |         <li>Beispielsweise ergibt sich so folgender Link: <a href="./ardaudiothek-rss.php?show=94702896">Beispiel Wild Wild Web</a>. </li>
51 |     </ul>
52 |     <p>Sollte man nur einen Feed mit den letzten X Folgen abonnieren wollen, kann man auch ein &quot;&amp;latest=X&quot; anhängen: <a href="./ardaudiothek-rss.php?show=94702896&latest=10">Beispiel Wild Wild Web, letzte 10 Folgen</a>. 
53 |     </br></br>
54 | <!--
55 |     <h2>Feed-ID Bestimmen</h2>
56 |     <p>Im folgenden Feld kann die URL aus der ARD Audiothek direkt eingefügt werden, um die ID zu extrahieren.</p>
57 | 
58 |     <input type="ArdLink" id="ArdLink" alt="URL des Podcasts in der ARD Audiothek" />
59 |     <input type="button" id="calcIDBtn" value="Feed-ID extrahieren" onclick="javascript:" />
60 | -->
61 | 
62 |     <h2>Feed Öffnen</h2>
63 |     <p>Im folgenden Feld die gewünschte Feed-ID eingeben, dann auf "Feed-Öffnen" klicken.</p>
64 |     <input type="FeedID" id="FeedID" alt="Feed-ID"/>
65 |     <input type="button" id="openFeed" value="Feed Öffnen" onClick="javascript: window.open('./ardaudiothek-rss.php?show=' + document.getElementById('FeedID').value);" />
66 | 
67 | <!-- noch einen Button einbauen, der den Link unten drunter anzeigt und potentiell in die Zwischenablage kopiert? -->
68 | 
69 |   </body>
70 | </html>
71 | 


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