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path: root/etc/phpshellsessions/gitsync
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/*   cvs_sync
 *   Written by Scott Ullrich
 *   (C)2005-2007 Scott Ullrich
 *   (C)2010 Erik Fonnesbeck
 *   Part of the pfSense project pfSsh.php subsystem
 */

require_once("globals.inc");
require_once("filter.inc");
require_once("shaper.inc");
require_once("rrd.inc");
require_once("pfsense-utils.inc");
	
conf_mount_rw();

$GIT_PKG = "http://ftp-archive.freebsd.org/pub/FreeBSD-Archive/ports/`uname -m`/packages-8.1-release/All/git-1.7.1.1.tbz"; // Either "git" or the full package URL
$GIT_REPO = "git://github.com/bsdperimeter/pfsense.git";
$DEFAULT_BRANCH = "RELENG_2_0";
$CODIR =  "/root/pfsense/";
$GITSYNC_MERGE = "/root/.gitsync_merge";

/* NOTE: Set branches here */
$branches = array(
	"master" => "2.1 development branch",
	"RELENG_2_0" => "2.0.* release branch",
	"RELENG_1_2" => "1.2.* release branch",
	"build_commit" => "The commit originally used to build the image"
);

global $g;
global $argv;
global $command_split;

// If this parameter is set, all interactive functions are disabled
// and neither PHP nor the web gui will be killed or restarted.
$upgrading = in_array("--upgrading", $argv);

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

if(!file_exists("/usr/local/bin/git")) {
	echo "Cannot find git, fetching...";
	if (($g['platform'] == "nanobsd") || ($g['platform'] == "embedded")) {
		$pkgtmpdir = "/usr/bin/env PKG_TMPDIR=/root/ ";
		$pkgstagingdir = "/root/tmp";
		if (!is_dir($pkgstagingdir))
			mkdir($pkgstagingdir);
		$pkgstaging = "-t {$pkgstagingdir}/instmp.XXXXXX";
	}
	system("{$pkgtmpdir}/usr/sbin/pkg_add {$pkgstaging} -r {$GIT_PKG}");
}

# Remove mainline if exists (older)
if(is_dir("/root/pfsense/mainline")) 
	exec("rm -rf /root/pfsense/mainline");

# Remove RELENG_1_2 if exists (older)
if(is_dir("/root/pfsense/RELENG_1_2")) 
	exec("rm -rf /root/pfsense/RELENG_1_2");

# Remove HEAD if exists (older)
if(is_dir("/root/pfsense/HEAD")) 
	exec("rm -rf /root/pfsense/HEAD");

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

if(is_dir("$CODIR/pfSenseGITREPO/pfSenseGITREPO")) {
	exec("cd $CODIR/pfSenseGITREPO/pfSenseGITREPO && git config remote.origin.url", $output_str, $ret);
	if(is_array($output_str) && !empty($output_str[0]))
		$GIT_REPO = $output_str[0];
	unset($output_str);
}

if($command_split[2]) {
	$branch = $command_split[2];
} else {
	if(!$argv[3] && !$upgrading) {
		echo "\nCurrent repository is $GIT_REPO\n";
		echo "\nPlease select which branch you would like to sync against:\n\n";
		foreach($branches as $branchname => $branchdesc) {
			echo "{$branchname} \t {$branchdesc}\n";
		}
		echo "\nOr alternatively you may enter a custom RCS branch URL (Git or HTTP).\n\n";
		$branch = readline("> ");
		echo "\n";
	} else {
		$branch = $argv[3];
	}
}

if($argv[4] == "NOBACKUP") 
	$nobackup = true;
else 
	$nobackup = false;

// If the repository has been fetched before, build a list of its branches.
if(is_dir("$CODIR/pfSenseGITREPO/pfSenseGITREPO")) {
	exec("cd $CODIR/pfSenseGITREPO/pfSenseGITREPO && git branch -r", $branch_list, $ret);
	if($ret == 0 && is_array($branch_list)) {
		foreach ($branch_list as $branch_item) {
			$branch_item = substr(strrchr($branch_item, "/"), 1);
			if (!isset($branches[$branch_item]))
				$branches[$branch_item] = " ";
		}
	}
}

$found = false;
foreach($branches as $branchname => $branchdesc) {
	if($branchname == $branch) 
		$found = true;
}
if(!$found) {
	if(isURL($branch) && !$upgrading) {
		if($command_split[3]) {
			$GIT_REPO = $branch;
			$branch = $command_split[3];
			$found = true;
		}
		else if($argv[4]) {
			$GIT_REPO = $branch;
			$branch = $argv[4];
			$found = true;
		}
		else {
			echo "\n";
			echo "NOTE: $branch was not found.\n\n";
			$command = readline("Is this a custom GIT URL? [y]? ");
			if(strtolower($command) == "y" or $command == "") {
				$GIT_REPO = $branch;
				$command = readline("Checkout which branch [${DEFAULT_BRANCH}]? ");
				if($command == "")
					$branch = $DEFAULT_BRANCH;
				if($command) 
					$branch = $command;
				$found = true;
			}
		}
	}
	if(!$found) {
		echo "\nNo valid branch found.  Exiting.\n\n";
		conf_mount_ro();
		exit;
	}
}

$merge_repos = array();
if(file_exists($GITSYNC_MERGE)) {
	$gitsync_merges = file($GITSYNC_MERGE, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
	if(!empty($gitsync_merges) && is_array($gitsync_merges)) {
		echo "\n===> Automatic merge list read from ${GITSYNC_MERGE}\n";
		foreach($gitsync_merges as $merge_line_num => $merge_line) {
			$merge_comments = explode("#", trim($merge_line));
			if(empty($merge_comments[0]))
				continue;

			$merge_line = explode(" ", trim($merge_comments[0]));
			if(count($merge_line) != 2 || empty($merge_line[0]) || empty($merge_line[1])) {
				echo "\nLine " . ($merge_line_num + 1) . " does not have the correct parameter count or has improper spacing.\n";
				echo "Expected parameters:  repository_url branch\n";
				echo "Line read:  " . implode(" ", $merge_line) . "\n\n";
				echo "Aborting automatic merge.\n\n";
				$merge_repos = array();
				break;
			}
			$merge_repos[] = array('repo' => $merge_line[0], 'branch' => $merge_line[1]);
		}
	}
}
if(!$command_split[2] && !$argv[3] && !$upgrading) {
	do {
		echo "\nAdd a custom RCS branch URL (Git or HTTP) to merge in or press enter if done.\n\n";
		$merge_repo = readline("> ");
		if(!empty($merge_repo)) {
			$merge_branch = readline("Merge which branch [${DEFAULT_BRANCH}]? ");
			if($merge_branch == "")
				$merge_repos[] = array('repo' => $merge_repo, 'branch' => $DEFAULT_BRANCH);
			else if($merge_branch)
				$merge_repos[] = array('repo' => $merge_repo, 'branch' => $merge_branch);
		}
	} while(!empty($merge_repo));
}

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";
		conf_mount_ro();
		exit();
	}
	echo "===> Restoring previous CVSSync backup... Please wait...\n";
	exec("tar Uxpf /root/cvssync_backup.tgz -C /");
	post_cvssync_commands();
	conf_mount_ro();
	exit();
} else {
	$nobackup = true; // do not backup embedded, livecd
}

if($nobackup == false) {
	echo "===> Backing up current pfSense information...\n";
	echo "===> Please wait... ";
	exec("tar czPf /root/cvssync_backup.tgz --exclude /root --exclude /dev --exclude /var/db/racoon/racoon.sock --exclude /tmp --exclude /var/run --exclude /var/empty /");
	$size = filesize("/root/cvssync_backup.tgz");
	echo "{$size} bytes.\n\n";
	sleep(5);
}

echo "===> Checking out $branch\n";

// Git commands for resetting to the specified branch
if($branch == "build_commit") {
	$git_cmd = array(
		"cd $CODIR/pfSenseGITREPO/pfSenseGITREPO && git branch " . escapeshellarg($branch) . " 2>/dev/null",
		"cd $CODIR/pfSenseGITREPO/pfSenseGITREPO && git checkout -f " . escapeshellarg($branch) . " 2>/dev/null",
		"cd $CODIR/pfSenseGITREPO/pfSenseGITREPO && git reset --hard " . escapeshellarg(trim(file_get_contents("/etc/version.lastcommit")))
	);
} else {
	$git_cmd = array(
		"cd $CODIR/pfSenseGITREPO/pfSenseGITREPO && git branch " . escapeshellarg($branch) . " " . escapeshellarg("origin/{$branch}") . " 2>/dev/null",
		"cd $CODIR/pfSenseGITREPO/pfSenseGITREPO && git checkout -f " . escapeshellarg($branch) . " 2>/dev/null",
		"cd $CODIR/pfSenseGITREPO/pfSenseGITREPO && git reset --hard " . escapeshellarg("origin/{$branch}")
	);
}

// Git 'er done!
if(is_dir("$CODIR/pfSenseGITREPO/pfSenseGITREPO")) {
	echo "===> Fetching updates...\n";
	exec("cd $CODIR/pfSenseGITREPO/pfSenseGITREPO && git config remote.origin.url " . escapeshellarg($GIT_REPO));
	exec("cd $CODIR/pfSenseGITREPO/pfSenseGITREPO && git fetch");
	exec("cd $CODIR/pfSenseGITREPO/pfSenseGITREPO && git clean -f -f -x -d");
	run_cmds($git_cmd);
} else {
    exec("mkdir -p $CODIR/pfSenseGITREPO");
    echo "Executing cd $CODIR/pfSenseGITREPO && git clone $GIT_REPO pfSenseGITREPO\n";
	exec("cd $CODIR/pfSenseGITREPO && git clone " . escapeshellarg($GIT_REPO) . " pfSenseGITREPO");
	if(is_dir("$CODIR/pfSenseGITREPO/pfSense")) 
		exec("mv $CODIR/pfSenseGITREPO/pfSense $CODIR/pfSenseGITREPO/pfSenseGITREPO");
	if(is_dir("$CODIR/pfSenseGITREPO/mainline")) 
		exec("mv $CODIR/pfSenseGITREPO/mainline $CODIR/pfSenseGITREPO/pfSenseGITREPO");
	run_cmds($git_cmd);
}

foreach($merge_repos as $merge_repo) {
	echo "===> Merging branch {$merge_repo['branch']} from {$merge_repo['repo']}\n";
	exec("cd $CODIR/pfSenseGITREPO/pfSenseGITREPO && git pull " . escapeshellarg($merge_repo['repo']) . " " . escapeshellarg($merge_repo['branch']), $output_str, $ret);
	unset($output_str);
	if($ret <> 0) {
		echo "\nMerge failed.  Aborting sync.\n\n";
		run_cmds($git_cmd);
		conf_mount_ro();
		exit;
	}
}

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

// Nuke CVS and pfSense tarballs
exec("cd ${CODIR}/pfSenseGITREPO/pfSenseGITREPO && find . -name CVS -exec rm -rf {} \; 2>/dev/null");
exec("cd ${CODIR}/pfSenseGITREPO/pfSenseGITREPO && find . -name pfSense.tgz -exec rm {} \; 2>/dev/null");

// Remove files that we do not want to overwrite the system with 
exec("rm ${CODIR}/pfSenseGITREPO/pfSenseGITREPO/usr/local/www/trigger_initial_wizard 2>/dev/null");
exec("rm ${CODIR}/pfSenseGITREPO/pfSenseGITREPO/etc/crontab 2>/dev/null");
exec("rm ${CODIR}/pfSenseGITREPO/pfSenseGITREPO/etc/master.passwd 2>/dev/null");
exec("rm ${CODIR}/pfSenseGITREPO/pfSenseGITREPO/etc/passwd 2>/dev/null");
exec("rm ${CODIR}/pfSenseGITREPO/pfSenseGITREPO/etc/fstab 2>/dev/null");
exec("rm ${CODIR}/pfSenseGITREPO/pfSenseGITREPO/etc/ttys 2>/dev/null");
exec("rm ${CODIR}/pfSenseGITREPO/pfSenseGITREPO/etc/group 2>/dev/null");
exec("rm ${CODIR}/pfSenseGITREPO/pfSenseGITREPO/etc/fstab 2>/dev/null");
exec("rm ${CODIR}/pfSenseGITREPO/pfSenseGITREPO/etc/platform 2>/dev/null");
exec("rm ${CODIR}/pfSenseGITREPO/pfSenseGITREPO/boot/device.hints 2>/dev/null");
exec("rm ${CODIR}/pfSenseGITREPO/pfSenseGITREPO/boot/loader.conf 2>/dev/null");
exec("rm ${CODIR}/pfSenseGITREPO/pfSenseGITREPO/boot/loader.rc 2>/dev/null");
exec("rm -rf ${CODIR}/pfSenseGITREPO/pfSenseGITREPO/conf*");
exec("rm -rf ${CODIR}/pfSenseGITREPO/pfSenseGITREPO/cf 2>/dev/null");
exec("rm -rf ${CODIR}/pfSenseGITREPO/pfSenseGITREPO/root/.shrc");
exec("rm -rf ${CODIR}/pfSenseGITREPO/pfSenseGITREPO/root/.tcshrc");
exec("rm -f ${CODIR}/pfSenseGITREPO/pfSenseGITREPO/etc/syslog.conf 2>/dev/null");

echo "===> Installing new files...\n";

// Don't include the .git directory in the copy
exec("mv $CODIR/pfSenseGITREPO/pfSenseGITREPO/.git $CODIR/pfSenseGITREPO/gitsync_temp.git");

if($g['platform'] == "pfSense") 
	$command = "cd $CODIR/pfSenseGITREPO/pfSenseGITREPO ; tar -cpf - . | (cd / ; tar -Uxpf -)";
else 
	$command = "cd $CODIR/pfSenseGITREPO/pfSenseGITREPO ; tar -cpf - . | (cd / ; tar -xpf -) 2>/dev/null";
exec($command);

exec("mv $CODIR/pfSenseGITREPO/gitsync_temp.git $CODIR/pfSenseGITREPO/pfSenseGITREPO/.git");

// Reset the repository to restore the deleted files
exec("cd $CODIR/pfSenseGITREPO/pfSenseGITREPO && git reset --hard >/dev/null 2>/dev/null");

// Remove obsolete files
$files_to_remove = file("/etc/pfSense.obsoletedfiles");
foreach($files_to_remove as $file_to_remove) 
	if(file_exists($file_to_remove)) 
		exec("/bin/rm -f $file_to_remove");

if(!$upgrading)
	post_cvssync_commands();

echo "===> Checkout complete.\n";
echo "\n";
if(!$upgrading)
	echo "Your system is now sync'd and PHP and Lighty will be restarted in 5 seconds.\n\n";
else
	echo "Your system is now sync'd.\n\n";

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");

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

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

	if(file_exists("/etc/rc.php_ini_setup")) {
		echo "===> Running /etc/rc.php_ini_setup...";
		exec("/etc/rc.php_ini_setup");
		echo "\n";
	}

	/* lock down console if necessary */
	echo "===> Locking down the console if needed...\n";
	auto_login();
	
	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($fd, "/usr/local/sbin/pfSctl -c 'service restart webgui'\n");
	if(file_exists("/var/etc/lighty-CaptivePortal.conf"))
		fwrite($fd, "/usr/local/sbin/lighttpd -f /var/etc/lighty-CaptivePortal.conf\n");
	fclose($fd);
	mwexec_bg("sh /tmp/restart_lighty");
	echo "\n";

}

function isUrl($url = "") {
	if($url) 
		if(strstr($url, "rcs.pfsense.org") or 
			strstr($url, "mainline") or 
				strstr($url, ".git") or strstr($url, "git://"))
					return true;
	return false;
}

function run_cmds($cmds) {
	global $debug;
	foreach($cmds as $cmd) {
		if($debug)
			echo "Running $cmd";
		exec($cmd);
	}
}

conf_mount_ro();
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