<?
require_once("../cms/lib/database.inc.php");
require_once("config.inc.php");

$types = array("tgz" => "application/x-tar", "iso" => "application/x-iso", "gz" => "application/octet-stream", "exe" => "application/octet-stream", "other" => "application/octet-stream");

if ($_GET['file'] == "customized") {
	// Benutzerdefiniertes ISO

	require_once("templates/download.inc.php");

	session_start();

	$custompath = $config['download'] . "/custom/";
	$tmppath = $custompath . session_id();

	`cd $custompath; find -maxdepth 1 -mmin +60 -type d ! -name .. ! -name . -exec rm -r "{}" ";"`;

	`rm -rf "$tmppath"`;
	mkdir("$tmppath") || die("Can't create temp dir!");
	mkdir("$tmppath/iso") || die("Can't create temp dir!");
	`tar -xzf {$_SESSION['customize']['base']} -C $tmppath/iso`;
#	echo "tar -xzf {$_SESSION['customize']['base']} -C $tmppath/iso";
#	exit;
	if (is_dir("$tmppath/iso/boot/grub/")) {
		chmod("$tmppath/iso/boot/grub/stage2_eltorito", 0644);
	}

	@mkdir("$tmppath/iso/etc");

	$download = new Download($_SESSION['customize']['path']);

	$files = $download->getFiles("base", $_SESSION['customize']['stable']);
	if (isset($files['kernel'])) {
		$old = "$tmppath/iso/boot/*kernel*";
		$src = $files['kernel']['path'] . $files['kernel']['filename'];
		`rm $old`;
		`ln "$src" "$tmppath/iso/boot/kernel"`;
		`touch "$tmppath/iso/boot/{$files['kernel']['filename']}"`;
	}
	$version = 0;
	$deps = $download->dependencies;
	$files = $download->getFiles("vdr-", $_SESSION['customize']['stable']);
	$files = $files ? $files : $download->getFiles("vdrapi-", $_SESSION['customize']['stable']);
	$files = array_merge($files, $download->getFiles("system", $_SESSION['customize']['stable']));
	@mkdir("$tmppath/iso/addons");
	@mkdir("$tmppath/iso/addons/inactive");
	function  addAddon($addon, $state)
	{
		global $version, $tmppath, $files, $deps;
		if (isset ($files[$addon])) {
			$src = $files[$addon]['path'] . $files[$addon]['filename'];
			$desc = "$tmppath/iso/addons/" . ($state == -1 ? "inactive/" : "") . $files[$addon]['filename'];
			if (!file_exists($desc)) {
				`ln "$src" "$desc"`;
				if ($state != -1 && is_file("$tmppath/iso/addons/inactive/" . $files[$addon]['filename'])) {
					unlink("$tmppath/iso/addons/inactive/" . $files[$addon]['filename']);
				} else {
					$version += $files[$addon]['revision'];
				}
				if ($deps[$addon]) {
					foreach ($deps[$addon] as $addon) {
						addAddon($addon, $state);
					}
				}
			}
		}
	}

	if (isset ($_COOKIE['addons'])) {
		foreach ($_COOKIE['addons'] as $addon => $state) {
			addAddon($addon, $state);
		}
	}
	if (preg_match("/^3\./", $_SESSION['customize']['path'])) {
		`cd $tmppath/iso; mv addons etc/; cd etc/addons; ls MLD* > active; mv inactive/MLD* . 2>/dev/null; rm -r inactive`;
	}

	$basePrefix = preg_replace("/.*\/([^_]*).*/", "\\1", $_SESSION['customize']['base']);
	$baseVersion = preg_replace("/.*_(\d+)\.tgz/", "\\1", $_SESSION['customize']['base']);
	$unstable = $_SESSION['customize']['stable'] ? "" : "-latest";

	$imagetype = is_dir("$tmppath/iso/boot/grub/") || is_dir("$tmppath/iso/boot/isolinux/") ? "iso" : "tgz";
	$type = $types[$imagetype];
	$name = "{$basePrefix}_customized{$unstable}-{$version}_{$baseVersion}.{$imagetype}";
	$file = "$tmppath/$name";
	$logname = preg_replace("/.*\/(.*)_base-(.*)/", "\\1_customize-\\2", $_SESSION['customize']['base']);
	$version = $_SESSION['customize']['path'];

	if (is_dir("$tmppath/iso/boot/grub/")) {
		`mkisofs -R -J -V "MLD-$version" -b boot/grub/stage2_eltorito -no-emul-boot -boot-load-size 4 -boot-info-table -o $file $tmppath/iso 2>/dev/null`;
	} else if (is_dir("$tmppath/iso/boot/isolinux/")) {
		`mkisofs -R -J -V "MLD-$version" -b boot/isolinux/isolinux.bin -c boot/isolinux/boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table -o $file $tmppath/iso 2>/dev/null`;
		`isohybrid $file`;
	} else {
		`tar -czf $file -C $tmppath/iso . 2>/dev/null`;
	}

	ignore_user_abort(true);
	if ($fp = @fopen("{$config['logs']}customize.txt", "r+")) {
		if (flock($fp, LOCK_EX)) {
			$customize = unserialize(fread($fp, filesize("{$config['logs']}customize.txt") + 1));

			$customize['all'] = isset ($customize['all']) ? $customize['all'] + 1 : 1;
			if (isset ($_COOKIE['addons'])) {
				foreach ($_COOKIE['addons'] as $addon => $state) {
					if (isset ($files[$addon])) {
						$customize[$addon] = isset ($customize[$addon]) ? $customize[$addon] + 1 : 1;
					}
				}
			}

			rewind($fp);
			fwrite($fp, serialize($customize));

			flock($fp, LOCK_UN);
		}
		fclose($fp);
	} else {
		@touch("{$config['logs']}customize.txt");
	}
	ignore_user_abort(false);
	
	session_write_close();

} else {
	// Normale Datei

	if (empty($_GET['file'])) {
		header(true, true, 406);
		exit("Dateiname fehlt!");
	}

	$file = $config['download'] . preg_replace("/\.{2,}/", "", $_GET['file']);
	$type = preg_replace("/.*\.([^.]+)$|.*/", "\\1", $_GET['file']);
	$type = isset ($types[$type]) ? $types[$type] : $types['other'];
	$name = preg_replace("/.*\/(.*)|.*/", "\\1", $_GET['file']);
	$logname = $name;

	if (!$name || !file_exists($file)) {
		header(true, true, 404);
		exit("Unbekannte Datei!");
	}
}

if (preg_match("#/docs/|\.txt$#", $_GET['file'])) {
	// show file
	header("Content-Type: text/plain; charset=UTF8");
	header("Content-Disposition: filename=" . $name);
	header("Content-Length: " . filesize($file));
} else {
	// download file
	if (ini_get('zlib.output_compression')) {
		ini_set('zlib.output_compression', 'Off');
	}
	header("Pragma: public");
	header("Expires: 0");
	header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
	header("Cache-Control: private"); // IE6 bug fix
	header("Content-Type: $type");
	if (strstr($_SERVER['HTTP_USER_AGENT'], "mac")) {
		header("Content-Type: application/x-macbinary");
	} else {
		header("Content-Type: application/force-download");
	}
	if (strstr($_SERVER['HTTP_USER_AGENT'], "msie") && strstr($_SERVER['HTTP_USER_AGENT'], "win")) {
		header("Content-Disposition: filename=" . $name);
	} else {
		header("Content-Disposition: attachment; filename=" . $name);
	}
	header("Content-Description: File Transfer");
	header("Content-Length: " . filesize($file));

	// Download Statistik
	$db = new Database("data", $GLOBALS['config']['db']);
	$db->query("UPDATE state SET access=access+1 WHERE filename='$logname'");
}

$fd = fopen($file, "rb");
while ($fd && !feof($fd)) {
	echo fread($fd, 4096);
	flush();
}
fclose($fd);
?>