/*   cvs_sync
 *   Written by Scott Ullrich
 *   (C)2005-2007 Scott Ullrich
 *   Part of the pfSense project pfSsh.php subsystem
 */

/*
 * Functions
 */
function post_cvssync_commands() {
	echo "===> Removing FAST-CGI temporary files...\n";
	exec("find /tmp -name \"php-fastcgi.socket*\" -exec rm -rf {} \;");
	exec("find /tmp -name \"*.tmp\" -exec rm -rf {} \;");

	exec("rm -rf /tmp/xcache/* 2>/dev/null");

	check_php_status();

	echo "===> Upgrading configuration (if needed)...\n";
	convert_config();

	echo "===> Syncing system passwords...\n";
	local_sync_accounts();

	echo "===> Restarting check_reload_status...\n";
	exec("killall check_reload_status");
	mwexec_bg("nohup /usr/bin/nice -n20 /usr/local/sbin/check_reload_status");

	echo "===> Configuring filter...";
	exec("/etc/rc.filter_configure_sync");
	exec("pfctl -f /tmp/rules.debug");
	echo "\n";

	echo "===> Signaling PHP and Lighty restart...";
	$fd = fopen("/tmp/restart_lighty", "w");
	fwrite($fd, "#!/bin/sh\n");
	fwrite($fd, "sleep 5\n");
	fwrite($fd, "killall php\n");
	fwrite($fd, "touch /tmp/restart_webgui\n");
	fclose($fd);
	mwexec_bg("sh /tmp/restart_lighty");
	echo "done.\n";
}

function check_php_status() {
	echo "===> Ensuring that PHP is working before going further...";
	$test_php = `php -v`;
	if(!strstr($test_php, "PHP")) {
		echo "OH NOES.\n+++> Ruh roh, you're PHP is now toast.\n";
		if(file_exists("/root/cvssync_backup.tgz")) {
			echo "+++> Found previous CVSSync backup.  Restoring...";
			mwexec("cd / && tar xzpfU /root/cvssync_backup.tgz -C /");
			echo "done.\n";
			echo "\nWe'll exit now, try not to do whatever you did, again.\n";
			exit;
		} else {
			echo "+++> Sorry, we could not locate a cvssync backup to restore from. Good luck rescuing your system! :( \n";
			exit;
		}
	} else {
		echo "it's good!\n";
	}
}

function create_supfile($branch) {

	if($branch == "HEAD") 
		$BRANCHTAG = ".";
	else
		$BRANCHTAG = $branch;

	$supfile = "
*default host=cvs.pfsense.com
*default base=/root/pfsense/$branch
*default release=cvs tag=$BRANCHTAG
*default delete use-rel-suffix
pfSense
*default compress
";

	file_put_contents("/var/etc/pfSense-supfile", $supfile);
}

/*
 *
 * 
 * cvssync script starts here 
 *
 * 
 */

echo "===> cvssync is starting at " . exec(date) . "\n";

conf_mount_rw();

echo "===> Backing up original rules.debug...";
exec("cp /tmp/rules.debug /tmp/rules.beforecvssync");
echo "done.\n";

if(is_dir("/home/pfsense")) {
	echo "\nRelocating downloaded cvssync data, please wait...";
	exec("rm -rf /home/pfsense");
	echo " done.\n";
}

unlink_if_exists("/tmp/config.cache");

if(!file_exists("/usr/local/bin/cvsup")) {
	echo "Cannot find cvsup, pkg_add in progress...";
	system("/usr/sbin/pkg_add -r http://files.pfsense.org/packages/7/All/cvsup-without-gui-16.1h_4.tbz");
}

if(!file_exists("/usr/bin/cvs")) {
	echo "Cannot find cvs, fetching static cvs...";
	system("fetch -o /usr/bin/cvs http://files.pfsense.org/extras/7/cvs");
	system("chmod a+rx /usr/bin/cvs");
}

if(!file_exists("/usr/bin/cvs") or !file_exists("/usr/local/bin/cvsup")) {
	echo "Could not fetch cvs or cvsup.   exiting.";
	exit;
}

global $argv;
global $command_split;

/* NOTE: Set branches here */
$branches = array(
				  "RELENG_1" => "1.3 development branch",
				  "RELENG_1_2" => "1.2 release branch"
				);

if(file_exists("/root/cvssync_backup.tgz")) {
	$backup_date = `ls -lah /root/cvssync_backup.tgz | awk '{ print $6,$7,$8 }'`;
	$tmp = array("RESTORE" => "Restores prior CVSSync backup from {$backup_date}");
	$branches = array_merge($branches, $tmp);
}

if($command_split[2]) {
	$branch = $command_split[2];
} else {
	if(!$argv[3]) {
		echo "\nPlease select which branch you would like to sync against:\n\n";
		foreach($branches as $branchname => $branchdesc) {
			echo "{$branchname} \t {$branchdesc}\n";
		}
		$branch = readline("> ");
		echo "\n";
	} else {
		$branch = $argv[3];
	}
}
create_supfile($branch);

// Specify if we should backup system
if($argv[4] == "NOBACKUP") 
	$nobackup = true;
else 
	$nobackup = false;

if($g['platform'] == "embedded" || $g['platform'] == "livecd" || $g['platform'] == "wrap") 
	$nobackup = true; // do not backup embedded, livecd

$CODIR =  "/root/pfsense/$branch";

exec("mkdir -p /root/pfsense/$BRANCHTAG");

$found = false;
foreach($branches as $branchname => $branchdesc) 
	if($branchname == $branch) 
		$found = true;
if(!$found) {
	echo "\nInvalid branch {$branch}.\n";
	exit;
}

if($branch == "RESTORE" && $g['platform'] == "pfSense") {
	if(!file_exists("/root/cvssync_backup.tgz")) {
		echo "Sorry, we could not find a previous CVSSync backup file.\n";
		exit();
	}
	echo "===> Restoring previous CVSSync backup... Please wait...\n";
	exec("tar Uxpf /root/cvssync_backup.tgz -C /");
	post_cvssync_commands();
	exit();
}

if($nobackup == false) {
	echo "===> Backing up current pfSense information...\n";
	echo "===> Specify NOBACKUP at the end of pfSsh.php command to turn this feature off.\n";
	echo "===> Please wait... ";
	$exclude  = " --exclude /var/dhcpd/dev/";
	$exclude .= " --exclude /root";
	$exclude .= " --exclude /dev";
	$exclude .= " --exclude /var/db/racoon/racoon.sock";
	$exclude .= " --exclude /tmp";
	$exclude .= " --exclude /var/run";
	$exclude .= " --exclude /var/empty";
	exec("tar czPf /root/cvssync_backup.tgz {$exclude} /");
	$size = filesize("/root/cvssync_backup.tgz");
	echo "{$size} bytes.\n";
}

echo "===> Checking out $branch\n";
exec("mkdir -p /root/pfsense/$branch");
system("cvsup /var/etc/pfSense-supfile");
exec("rm -rf /usr/local/www/includes/*");
exec("rm -rf /usr/local/www/javascript/*");
exec("find /usr/local/www -name \"*.js\" -exec rm {} \;");

exec("mkdir -p /tmp/lighttpd/cache/compress/");

exec("cd ${CODIR}/ && find . -name CVS -exec rm -rf {} \; 2>/dev/null");
exec("cd ${CODIR}/ && find . -name pfSense.tgz -exec rm {} \; 2>/dev/null");
exec("rm -rf ${CODIR}/conf*");
exec("rm ${CODIR}/pfSense/usr/local/www/trigger_initial_wizard 2>/dev/null");
exec("rm ${CODIR}/pfSense/etc/crontab 2>/dev/null");
exec("rm ${CODIR}/pfSense/etc/master.passwd 2>/dev/null");
exec("rm ${CODIR}/pfSense/etc/passwd 2>/dev/null");
exec("rm ${CODIR}/pfSense/etc/fstab 2>/dev/null");
exec("rm ${CODIR}/pfSense/etc/ttys 2>/dev/null");
exec("rm ${CODIR}/pfSense/etc/group 2>/dev/null");
exec("rm ${CODIR}/pfSense/etc/fstab 2>/dev/null");
exec("rm ${CODIR}/pfSense/etc/platform 2>/dev/null");
exec("rm ${CODIR}/pfSense/boot/device.hints 2>/dev/null");
exec("rm ${CODIR}/pfSense/boot/loader.conf 2>/dev/null");
exec("rm ${CODIR}/pfSense/boot/loader.rc 2>/dev/null");
exec("rm -rf ${CODIR}/pfSense/conf/ 2>/dev/null");
exec("rm -rf ${CODIR}/pfSense/cf/ 2>/dev/null");
exec("rm -rf ${CODIR}/pfSense/root/.shrc");
exec("rm -rf ${CODIR}/pfSense/root/.tcshrc");
exec("rm -f ${CODIR}/pfSense/etc/syslog.conf 2>/dev/null");

echo "===> Installing new files...";
if($g['platform'] == "pfSense") 
	$command = "cd $CODIR/pfSense ; tar -cpf - . | (cd / ; tar -Uxpf -)";
else 
	$command = "cd $CODIR/pfSense ; tar -cpf - . | (cd / ; tar -xpf -) 2>/dev/null";
exec($command);
echo "done.\n";

post_cvssync_commands();

echo "===> Checkout and file installation complete.\n";
echo "===> Signaling 5 second PHP and lighttpd reload\n";

conf_mount_ro();

echo "===> Showing rules.debug differences\n";
system("diff -u /tmp/rules.beforecvssync /tmp/rules.debug");