<?php
chdir("..");
require_once "src/util.php";

$query = $_SERVER["QUERY_STRING"];
parse_str($query, $param);

$path = urlsafe_b64decode($param["file"]);
$path = "./" . $path;
$path = str_replace("..", "", $path);

$descSpec = [
    0 => array("pipe", "r"),
    1 => array("pipe", "w"),
    2 => array("pipe", "w"),
];
$proc = proc_open(["ffprobe", "-show_streams", "-of", "json", $path], $descSpec, $pipes);

fclose($pipes[0]);

$stdout = stream_get_contents($pipes[1]);
$stderr = stream_get_contents($pipes[2]);
fclose($pipes[1]);
fclose($pipes[2]);

$code = proc_close($proc);

if ($code)
{
    header("Content-Type: text/plain");
    echo $stderr;
} else {
    header("Content-Type: application/json");
    echo $stdout;
}
?>