<?php

$took = microtime(true);

header("Content-Type: application/json;");

$ch = curl_init();

curl_setopt($ch, CURLOPT_URL, $_GET["url"]);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

$output = curl_exec($ch);
$last_url = curl_getinfo($ch, CURLINFO_EFFECTIVE_URL);
curl_close($ch);

preg_match("#https?:\/\/gosms\.gomocdn\.com\/mms\/v14\/index\.html\?u=(.*)&t=(.*)&w=(.*)&h=(.*)#", $last_url, $matches);

if (count($matches) === 0) {
    die(json_encode(["status" => "failed", "took" => microtime(true) - $took]));
    return;
}

$ret = ["status" => "ok", "type" => "raw", "width" => $matches[3] ?? 0, "height" => $matches[4] ?? 0];

if (strpos($matches[2], "image") === 0) {
    $ret["type"] = "image";
} else if (strpos($matches[2], "audio") === 0) {
    $ret["type"] = "audio";
} else if (strpos($matches[2], "video") === 0) {
    $ret["type"] = "video";
}

$ret["url"] = urldecode($matches[1]);


die(json_encode($ret));