/**
* Return a normalized, internal URL.
*
* @params string $url An internal URL.
* @returns string Normalized internal URL.
*/
function transformInternalIdnaLink($url)
{
return \idna_link(\TransformInternalLinks($url));
}
/**
* Stud.IP markup for images, audio, video and flash-films
*/
protected static function markupMedia($markup, $matches)
{
$tag = $matches[1];
$params = explode(":", $matches[2]);
$url = $matches[3];
$whitespace = $matches[4];
foreach ($params as $key => $param) {
if ($param) {
if (is_numeric($param)) {
$width = $param;
} elseif (in_array($param, words("left center right"))) {
$position = $param;
} elseif ($key === 0 && $param[0] === "=") {
$title = substr($param, 1);
} elseif ($key < count($params) - 1) {
$virtual_url = $param . ":" . $params[$key + 1];
if (isURL($virtual_url)) {
$link = $virtual_url;
}
}
}
}
$format_strings = array('img' => '<img src="%s" style="%s" title="%s" alt="%s">', 'audio' => '<audio src="%s" style="%s" title="%s" alt="%s" controls></audio>', 'video' => '<video src="%s" style="%s" title="%s" alt="%s" controls></video>');
$url = TransformInternalLinks($url);
$pu = @parse_url($url);
if (($pu['scheme'] == 'http' || $pu['scheme'] == 'https') && ($pu['host'] == $_SERVER['HTTP_HOST'] || $pu['host'] . ':' . $pu['port'] == $_SERVER['HTTP_HOST']) && strpos($pu['path'], $GLOBALS['CANONICAL_RELATIVE_PATH_STUDIP']) === 0) {
$intern = true;
$checkpath = urldecode(substr($pu['path'], strlen($GLOBALS['CANONICAL_RELATIVE_PATH_STUDIP'])));
if (strpos($checkpath, '../') === false) {
list($pu['first_target']) = explode('/', $checkpath);
} else {
$pu['first_target'] = false;
}
}
$LOAD_EXTERNAL_MEDIA = Config::GetInstance()->getValue('LOAD_EXTERNAL_MEDIA');
if ($intern && !in_array($pu['first_target'], array('sendfile.php', 'download', 'assets', 'pictures')) && !($pu['first_target'] === 'dispatch.php' && strpos($pu['path'], 'dispatch.php/document/download') !== false)) {
return $matches[0];
} elseif ((!$LOAD_EXTERNAL_MEDIA || $LOAD_EXTERNAL_MEDIA === 'deny') && !$intern) {
return $matches[0];
}
//Mediaproxy?
if (!$intern && $LOAD_EXTERNAL_MEDIA === "proxy" && Seminar_Session::is_current_session_authenticated()) {
$media_url = $GLOBALS['ABSOLUTE_URI_STUDIP'] . 'dispatch.php/media_proxy?url=' . urlencode(decodeHTML(idna_link($url)));
} else {
$media_url = idna_link($url);
}
if ($tag === "flash") {
$width = $width ? $width : 200;
$height = round($width * 0.75);
$flash_config = $width > 200 ? $GLOBALS['FLASHPLAYER_DEFAULT_CONFIG_MAX'] : $GLOBALS['FLASHPLAYER_DEFAULT_CONFIG_MIN'];
$media = '<object type="application/x-shockwave-flash" id="FlashPlayer" data="' . Assets::url() . 'flash/player_flv.swf" width="' . $width . '" height="' . $height . '">
<param name="movie" value="' . Assets::url() . 'flash/player_flv.swf">
<param name="allowFullScreen" value="true">
<param name="FlashVars" value="flv=' . urlencode(decodeHTML($media_url)) . '&startimage=' . $link . $flash_config . '">
<embed src="' . Assets::url() . 'flash/player_flv.swf" movie="$media_url" type="application/x-shockwave-flash" FlashVars="flv=' . urlencode(decodeHTML($media_url)) . '&startimage=' . $link . $flash_config . '">
</object>';
} else {
$media = sprintf($format_strings[$tag], $media_url, isset($width) ? "width: " . $width . "px;" : "", $title, $title);
}
if ($tag === 'audio') {
$random_id = 'audio-' . substr(md5(uniqid('audio', true)), -8);
$media = str_replace('<audio ', '<audio id="' . $random_id . '" onerror="STUDIP.Audio.handle(this);" ', $media);
}
if ($link && $tag === "img") {
$media = sprintf('<a href="%s"%s>%s</a>', $link, !isLinkIntern($link) ? ' target="_blank"' : "", $media);
}
if ($position) {
$media = '<div style="text-align: ' . $position . '">' . $media . '</div>';
}
$media .= $whitespace;
return $media;
}
