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[0] in function chmod in /var/www/hopeinstoughton_www/wp-content/plugins/simple-universal-google-analytics/main.php on line 8
[1] in function include_once in /var/www/hopeinstoughton_www/wp-settings.php on line 560
[2] in function require_once in /var/www/hopeinstoughton_www/wp-config.php on line 85
[3] in function require_once in /var/www/hopeinstoughton_www/wp-load.php on line 50
[4] in function require_once in /var/www/hopeinstoughton_www/wp-blog-header.php on line 13
[5] in function require in /var/www/hopeinstoughton_www/index.php on line 17

<?php

// copy vtt from specified cdn to current
// /copy/[encrypted auth data]/[sourcemirror]

    require_once __DIR__ . '/class.media-source.php';
    require_once __DIR__ . '/RangeHeader.php';
    require_once __DIR__ . '/class.captions.php';

    $payload = empty($_GET['auth']) ? '' : $_GET['auth'];
    $filename = empty($_GET['file']) ? '' : $_GET['file'];		// source cdn site
    $query = $_SERVER['REQUEST_URI'];
    if (($p = strpos($query, '?')) !== FALSE) {
        $query = substr($query, $p + 1);
        parse_str($query, $res);
    } else {
        $res = [];
    }
    
    $source = new MediaSource;

    $param = $source->decodeAuth($payload);
    if (!$param->valid) {
        header('Content-type: text/plain');
        die("Invalid Link");
    }
    if ($param->expired) {
        header('Content-type: text/plain');
		//echo "debug: expired link\n";
        die("Expired Link");
    }
    $sourcefile = dirname(__DIR__) . '/' . substr($param->id, 0, 1) . '/' . $param->id . '.' . $param->ext;

    while (ob_get_level()) 
        ob_end_clean();

    if ($_SERVER['REQUEST_METHOD'] === 'OPTIONS') {
        header('Access-Control-Allow-Origin: *');
        header('Access-Control-Allow-Methods: POST, GET, DELETE, PUT, PATCH, OPTIONS');
        header('Access-Control-Allow-Headers: token, Content-Type');
        header('Access-Control-Max-Age: 86400');
        header('Content-Length: 0');
        header('Content-Type: text/plain');
        die();
    }
    header('Access-Control-Allow-Origin: *');

    header('Content-type: text/plain');

// determine server
    $x = trim(`/bin/hostname`);
    switch($x) {
        case 'minimac18.local':
            $server = MediaSource::BACKUP1;
            break;

        case 'alcor':
            $server = MediaSource::ALCOR;
            break;

        case 'stoughton':
            $server = MediaSource::CHURCH;
            break;

        default:
            die('Unable to determine CDN from hostname');
    }


	// create new auth; get the file from the source cdn. Assumes source is vtt file
	$mmitem = new \StdClass;
	$mmitem->mi_id = $param->id;
	$source->MmItem($mmitem);
	
	$auth = $source->generateAuth($param->ext);		// a new auth

	// fetch the file from requested cdn
    $url = "https://cdn{$filename}.hopeinstoughton.org/file/$auth";
    $ch = curl_init($url);
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
    $returned_text = curl_exec($ch);
    curl_close($ch); 
	if (strlen($returned_text) > 512) {
		// save it
		file_put_contents($sourcefile, $returned_text);

		$postRequest = [
			'auth' => $auth,
			'type' => $param->ext,
		];

	//  mark as uploaded - curl request including: auth, type and $server
		$url = "https://hopeinstoughton.org/~/cdn-sync?cdn={$server}";
		$ch = curl_init($url);
		curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
		curl_setopt($ch, CURLOPT_POSTFIELDS, $postRequest);
		$returned_text = curl_exec($ch);
		curl_close($ch); 
		$result = json_decode($returned_text);
	}
	
	die("status=ok\n");