- public static function str_to_gmdate($date)
- {
- $timestamp = strtotime($date);
- return Tweeper::epoch_to_gmdate($timestamp);
- }
-
- private static function get_contents($uri) {
- # https://www.wjsams.com/c/docs/Wiki/Php-HowToSetUserAgentOnFileGetContents
- $opts = array(
- 'http' => array(
- 'method' => "GET",
- 'header' => join(array(
- "Accept-language: en\r\n",
- "User-Agent: {" + Tweeper::$USER_AGENT + "}\r\n"
- ))
- )
- );
-
- $context = stream_context_create($opts);
- $contents = file_get_contents($uri, false, $context);
- return $contents;
- }
-
- private static function get_info($url)
- {
- $ch = curl_init($url);
- curl_setopt_array($ch, array(
- CURLOPT_HEADER => TRUE,
- CURLOPT_NOBODY => TRUE,
- CURLOPT_FOLLOWLOCATION => TRUE, // follow http redirects to get the real URL
- CURLOPT_RETURNTRANSFER => TRUE,
- CURLOPT_SSL_VERIFYHOST => FALSE,
- CURLOPT_SSL_VERIFYPEER => FALSE,
- CURLOPT_USERAGENT => Tweeper::$USER_AGENT,
- ));
- curl_exec($ch);
- $url_info = curl_getinfo($ch);
- curl_close($ch);
-
- return $url_info;
- }
-
- public static function generate_enclosure($url)
- {
- $supported_content_types = array(
- "application/ogg",
- "audio/aac",
- "audio/mp4",
- "audio/mpeg",
- "audio/vorbis",
- "audio/wav",
- "audio/webm",
- "audio/x-midi",
- "image/gif",
- "image/jpeg",
- "video/avi",
- "video/mp4",
- "video/mpeg",
- "video/ogg",
- );
-
- $url_info = Tweeper::get_info($url);
-
- $supported = in_array($url_info['content_type'], $supported_content_types);
- if (!$supported) {
- error_log("Unsupported enclosure content type \"" . $url_info['content_type'] . "\" for URL: " . $url_info['url']);
- return '';
- }
-
- $dom = new DomDocument();
- $enc = $dom->createElement('enclosure');
- $enc->setAttribute('url', $url_info['url']);
- $enc->setAttribute('length', $url_info['download_content_length']);
- $enc->setAttribute('type', $url_info['content_type']);