Michael Fabian Dirks
144 lines
5.0 KiB
PHP
144 lines
5.0 KiB
PHP
<?php
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$pAction = $_REQUEST['action'];
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// Check for missing folders.
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if (!file_exists("./cache")) { mkdir("./cache"); }
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if (!file_exists("./cache/ip")) { mkdir("./cache/ip"); }
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if (!file_exists("./cache/channel")) { mkdir("./cache/channel"); }
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// Clean up old files.
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if ($handle = opendir('./cache/ip')) {
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while (false !== ($file = readdir($handle))) {
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if ($file != "." && $file != ".."
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&& ((filemtime("./cache/ip/$file") + 180) - time() < 0)) {
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unlink("./cache/ip/$file");
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}
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}
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closedir($handle);
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}
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if ($handle = opendir('./cache/channel')) {
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while (false !== ($file = readdir($handle))) {
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if ($file != "." && $file != ".."
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&& ((filemtime("./cache/channel/$file") + 600) - time() < 0)) {
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unlink("./cache/channel/$file");
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}
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}
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closedir($handle);
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}
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switch($pAction) {
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case "url":
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$cacheURL = "./cache/twitch.tv";
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if (!file_exists($cacheURL) || ((time() > filemtime($cacheURL)+900))) {
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$headers = get_headers("http://www-cdn.jtvnw.net/widgets/live_embed_player.swf?channel=", true);
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if ($headers && isset($headers['Location'])) {
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file_put_contents($cacheURL, substr($headers["Location"], 0, strpos($headers["Location"], "?channel=")+9)."##CHANNEL##", LOCK_EX);
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}
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}
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$cacheURLTime = (filemtime($cacheURL)+900)-time();
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header("Expires: " . date(DATE_RFC822,strtotime("$cacheURLTime seconds")));
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header("Cache-Control: max-age=$cacheURLTime, must-revalidate");
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echo file_get_contents($cacheURL);
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break;
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case "data":
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if (isset($_REQUEST['channel'])) {
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$pChannel = urlencode($_REQUEST['channel']);
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$cacheIP = "./cache/ip/".$_SERVER['REMOTE_ADDR'];
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$cacheChannel = "./cache/channel/".$pChannel;
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if (file_exists($cacheChannel) && (time() < (filemtime($cacheChannel)+600))) {
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$cacheChannelTime = (filemtime($cacheChannel)+600)-time();
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header("Expires: " . date(DATE_RFC822,strtotime("$cacheChannelTime seconds")));
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header("Cache-Control: max-age=$cacheChannelTime, must-revalidate");
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echo file_get_contents($cacheChannel);
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} else {
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if (file_exists($cacheIP) && (time() < (filemtime($cacheIP)+180))) {
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$cacheIPTime = (filemtime($cacheIP)+180)-time();
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header("HTTP/1.0 429 Too Many Requests");
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header("Expires: " . date(DATE_RFC822,strtotime("$cacheIPTime seconds")));
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header("Cache-Control: max-age=$cacheIPTime, must-revalidate");
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echo $cacheIPTime;
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} else {
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header("Expires: " . date(DATE_RFC822,strtotime("10 minutes")));
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header("Cache-Control: max-age=600, must-revalidate");
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$channelData = file_get_contents("http://usher.twitch.tv/find/".$pChannel.".xml?type=any");
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if ($channelData != "") {
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$channelData = str_replace("</240p>", "</q240p>", str_replace("<240p>", "<q240p>", $channelData));
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$channelData = str_replace("</360p>", "</q360p>", str_replace("<360p>", "<q360p>", $channelData));
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$channelData = str_replace("</480p>", "</q480p>", str_replace("<480p>", "<q480p>", $channelData));
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$channelData = str_replace("</720p>", "</q720p>", str_replace("<720p>", "<q720p>", $channelData));
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$xmlData = @xml2array($channelData);
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$jsonData = json_encode(convert($xmlData), JSON_FORCE_OBJECT);
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file_put_contents($cacheChannel, $jsonData, LOCK_EX);
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file_put_contents($cacheIP, "", LOCK_EX);
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echo $jsonData;
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}
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}
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}
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} else {
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header("HTTP/1.0 400 Bad Request");
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echo "Missing channel.";
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}
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break;
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}
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function convert($arrayXML) {
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$nArray = array();
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foreach($arrayXML as $key => $value) {
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$tag = (isset($value["tag"]) ? $value["tag"] : $key);
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if ($tag == "NODE" || $tag == "NEEDED_INFO" || $tag == "META_GAME"
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|| $tag == "VIDEO_HEIGHT" || $tag == "BITRATE" || $tag == "BROADCAST_PART"
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|| $tag == "PERSISTENT" || $tag == "CLUSTER" || $tag == "TOKEN" || $tag == "BROADCAST_ID") {
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continue;
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}
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if (isset($value["value"])) {
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$nArray[$tag] = $value["value"];
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} else if (is_array($value)) {
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$nArray[$tag] = convert($value);
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}
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}
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return $nArray;
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}
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function xml2array($xml){
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$opened = array();
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$opened[1] = 0;
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$xml_parser = xml_parser_create();
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xml_parse_into_struct($xml_parser, $xml, $xmlarray);
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xml_parser_free($xml_parser);
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$array = array_shift($xmlarray);
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unset($array["level"]);
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unset($array["type"]);
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$arrsize = sizeof($xmlarray);
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for($j=0;$j<$arrsize;$j++){
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$val = $xmlarray[$j];
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switch($val["type"]){
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case "open":
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$opened[$val["level"]]=0;
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case "complete":
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$index = "";
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for($i = 1; $i < ($val["level"]); $i++)
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$index .= "[" . $opened[$i] . "]";
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$path = explode('][', substr($index, 1, -1));
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$value = &$array;
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foreach($path as $segment)
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$value = &$value[$segment];
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$value = $val;
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unset($value["level"]);
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unset($value["type"]);
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if($val["type"] == "complete")
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$opened[$val["level"]-1]++;
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break;
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case "close":
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$opened[$val["level"]-1]++;
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unset($opened[$val["level"]]);
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break;
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}
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}
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return $array;
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}
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?>
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