private void passTcpFileDescriptor(
LocalSocket fdSocket,
OutputStream outputStream,
String socketId,
String dstIp,
int dstPort,
int connectTimeout)
throws Exception {
Socket sock = new Socket();
sock.setTcpNoDelay(true); // force file descriptor being created
if (protect(sock)) {
try {
sock.connect(new InetSocketAddress(dstIp, dstPort), connectTimeout);
ParcelFileDescriptor fd = ParcelFileDescriptor.fromSocket(sock);
tcpSockets.put(socketId, sock);
fdSocket.setFileDescriptorsForSend(new FileDescriptor[] {fd.getFileDescriptor()});
outputStream.write('*');
outputStream.flush();
fd.detachFd();
} catch (ConnectException e) {
LogUtils.e("connect " + dstIp + ":" + dstPort + " failed");
outputStream.write('!');
sock.close();
} catch (SocketTimeoutException e) {
LogUtils.e("connect " + dstIp + ":" + dstPort + " failed");
outputStream.write('!');
sock.close();
} finally {
outputStream.flush();
}
} else {
LogUtils.e("protect tcp socket failed");
}
}
@Override
protected void onHandleIntent(Intent intent) {
LogUtils.i("ver: " + getMyVersion(this));
LogUtils.i("rooted: " + ShellUtils.checkRooted());
if (isVpnRunning()) {
LogUtils.i("manager is already running in vpn mode");
sendBroadcast(new LaunchedIntent(true));
return;
}
if (ping(false)) {
LogUtils.i("manager is already running in root mode");
sendBroadcast(new LaunchedIntent(false));
return;
}
if (ping(true)) {
LogUtils.i("Restart manager");
try {
ManagerProcess.kill();
Thread.sleep(1000);
if (ManagerProcess.exists()) {
LogUtils.e("failed to restart manager", null);
} else {
LaunchService.execute(this);
}
} catch (Exception e) {
handleFatalError(LogUtils.e("failed to stop exiting process", e));
}
return;
}
deployAndLaunch();
}
private void passFileDescriptor(LocalSocket fdSocket, FileDescriptor tunFD) throws Exception {
OutputStream outputStream = fdSocket.getOutputStream();
InputStream inputStream = fdSocket.getInputStream();
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream), 1);
String request = reader.readLine();
String[] parts = request.split(",");
LogUtils.i("current open tcp sockets: " + tcpSockets.size());
LogUtils.i("current open udp sockets: " + udpSockets.size());
if ("TUN".equals(parts[0])) {
fdSocket.setFileDescriptorsForSend(new FileDescriptor[] {tunFD});
outputStream.write('*');
} else if ("OPEN UDP".equals(parts[0])) {
String socketId = parts[1];
passUdpFileDescriptor(fdSocket, outputStream, socketId);
} else if ("OPEN TCP".equals(parts[0])) {
String socketId = parts[1];
String dstIp = parts[2];
int dstPort = Integer.parseInt(parts[3]);
int connectTimeout = Integer.parseInt(parts[4]);
passTcpFileDescriptor(fdSocket, outputStream, socketId, dstIp, dstPort, connectTimeout);
} else if ("CLOSE UDP".equals(parts[0])) {
String socketId = parts[1];
DatagramSocket sock = udpSockets.get(socketId);
if (sock != null) {
udpSockets.remove(socketId);
sock.close();
}
} else if ("CLOSE TCP".equals(parts[0])) {
String socketId = parts[1];
Socket sock = tcpSockets.get(socketId);
if (sock != null) {
tcpSockets.remove(socketId);
sock.close();
}
} else {
throw new UnsupportedOperationException("fdsock unable to handle: " + request);
}
} finally {
try {
inputStream.close();
} catch (Exception e) {
LogUtils.e("failed to close input stream", e);
}
try {
outputStream.close();
} catch (Exception e) {
LogUtils.e("failed to close output stream", e);
}
fdSocket.close();
}
}
private void listenFdServerSocket(final ParcelFileDescriptor tunPFD) throws Exception {
final LocalServerSocket fdServerSocket = new LocalServerSocket("fdsock");
try {
ExecutorService executorService = Executors.newFixedThreadPool(16);
while (isRunning()) {
try {
final LocalSocket fdSocket = fdServerSocket.accept();
executorService.submit(
new Runnable() {
@Override
public void run() {
try {
passFileDescriptor(fdSocket, tunPFD.getFileDescriptor());
} catch (Exception e) {
LogUtils.e("failed to handle fdsock", e);
}
}
});
} catch (Exception e) {
LogUtils.e("failed to handle fdsock", e);
}
}
executorService.shutdown();
} finally {
fdServerSocket.close();
}
}
static {
try {
SOCKS_VPN_SERVICE_CLASS =
LaunchService.class.forName("fq.router.free_internet.SocksVpnService");
} catch (ClassNotFoundException e) {
LogUtils.e("failed to load SocksVpnService.class", e);
}
}
public static boolean ping(boolean isVpnMode) {
try {
String content = HttpUtils.get("http://127.0.0.1:8318/ping");
if (isVpnMode ? "VPN PONG".equals(content) : "PONG".equals(content)) {
return true;
} else {
LogUtils.e("ping failed: " + content);
return false;
}
} catch (HttpUtils.Error e) {
LogUtils.e("ping failed: [" + e.responseCode + "] " + e.output);
return false;
} catch (Exception e) {
LogUtils.e("ping failed: " + e);
return false;
}
}
public static String getMyVersion(Context context) {
try {
PackageInfo packageInfo =
context.getPackageManager().getPackageInfo(context.getPackageName(), 0);
return packageInfo.versionName;
} catch (Exception e) {
LogUtils.e("failed to get package info", e);
return "Unknown";
}
}
private void stopVpn() {
try {
tunPFD.close();
} catch (IOException e) {
LogUtils.e("failed to stop tunPFD", e);
}
tunPFD = null;
MainActivity.setShouldExit();
ExitService.execute(this);
}
private void passUdpFileDescriptor(
LocalSocket fdSocket, OutputStream outputStream, String socketId) throws Exception {
DatagramSocket sock = new DatagramSocket();
if (protect(sock)) {
ParcelFileDescriptor fd = ParcelFileDescriptor.fromDatagramSocket(sock);
udpSockets.put(socketId, sock);
fdSocket.setFileDescriptorsForSend(new FileDescriptor[] {fd.getFileDescriptor()});
outputStream.write('*');
outputStream.flush();
fd.detachFd();
} else {
LogUtils.e("protect udp socket failed");
}
}
private String launch(boolean isVpnMode) {
try {
Process process = executeManager(isVpnMode);
for (int i = 0; i < 30; i++) {
if (ping(isVpnMode)) {
return "";
}
if (hasProcessExited(process)) {
return "manager quit";
}
sleepOneSecond();
}
return "timed out";
} catch (Exception e) {
return LogUtils.e("failed to launch", e);
}
}
private Process executeManager(boolean isVpnMode) throws Exception {
Map<String, String> env =
new HashMap<String, String>() {
{
put("FQROUTER_VERSION", getMyVersion(LaunchService.this));
}
};
env.putAll(ShellUtils.pythonEnv());
if (isVpnMode) {
Process process =
ShellUtils.executeNoWait(env, ShellUtils.BUSYBOX_FILE.getCanonicalPath(), "sh");
OutputStreamWriter stdin = new OutputStreamWriter(process.getOutputStream());
try {
String command =
Deployer.PYTHON_LAUNCHER
+ " "
+ Deployer.MANAGER_VPN_PY.getAbsolutePath()
+ " > /data/data/fq.router/log/current-python.log 2>&1";
LogUtils.i("write to stdin: " + command);
stdin.write(command);
stdin.write("\nexit\n");
} finally {
stdin.close();
}
return process;
} else {
try {
LogUtils.i(
ShellUtils.sudo(
env,
Deployer.PYTHON_LAUNCHER
+ " -c \"import os; print 'current user id: %s' % os.getuid()\"")
.trim());
} catch (Exception e) {
LogUtils.e("log current user id failed", e);
}
return ShellUtils.sudoNoWait(
env,
Deployer.PYTHON_LAUNCHER
+ " "
+ Deployer.MANAGER_MAIN_PY.getAbsolutePath()
+ " > /data/data/fq.router/log/current-python.log 2>&1");
}
}
private void deployAndLaunch() {
try {
LogUtils.i("Kill existing manager process");
LogUtils.i("try to kill manager process before launch");
ManagerProcess.kill();
} catch (Exception e) {
LogUtils.e("failed to kill manager process before launch", e);
LogUtils.i("failed to kill manager process before launch");
}
Deployer deployer = new Deployer(this);
String fatalError = deployer.deploy();
if (!fatalError.isEmpty()) {
handleFatalError(fatalError);
return;
}
updateConfigFile(this);
LogUtils.i("Launching...");
if (ShellUtils.checkRooted()) {
fatalError = launch(false);
if (fatalError.isEmpty()) {
sendBroadcast(new LaunchedIntent(false));
} else {
handleFatalError(fatalError);
}
} else {
if (Build.VERSION.SDK_INT < 14) {
handleFatalError("[ROOT] is required");
return;
}
fatalError = launch(true);
if (fatalError.isEmpty()) {
sendBroadcast(new LaunchedIntent(true));
} else {
handleFatalError(fatalError);
}
}
}
public static void updateConfigFile(Context context) {
try {
SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(context);
JSONObject configJson = new JSONObject();
configJson.put("wifi_hotspot_ssid", preferences.getString("WifiHotspotSSID", "fqrouter"));
configJson.put(
"wifi_hotspot_password", preferences.getString("WifiHotspotPassword", "p@55word"));
configJson.put("tcp_scrambler_enabled", preferences.getBoolean("TcpScramblerEnabled", true));
configJson.put(
"youtube_scrambler_enabled", preferences.getBoolean("YoutubeScramblerEnabled", true));
configJson.put(
"goagent_public_servers_enabled",
preferences.getBoolean("GoAgentPublicServersEnabled", true));
configJson.put(
"shadowsocks_public_servers_enabled",
preferences.getBoolean("ShadowsocksPublicServersEnabled", true));
configJson.put(
"http_proxy_public_servers_enabled",
preferences.getBoolean("HttpProxyPublicServersEnabled", true));
IOUtils.writeToFile(FQROUTER_CONFIG_FILE, configJson.toString());
} catch (Exception e) {
LogUtils.e("failed to update config file", e);
}
}
private void startVpn() {
try {
if (tunPFD != null) {
throw new RuntimeException("another VPN is still running");
}
tunPFD =
new Builder()
.setSession("fqrouter")
.addAddress("10.25.1.1", 24)
.addRoute("0.0.0.0", 0)
.addDnsServer("8.8.8.8")
.establish();
if (tunPFD == null) {
stopSelf();
return;
}
final int tunFD = tunPFD.getFd();
LogUtils.i("tunFD is " + tunFD);
new Thread(
new Runnable() {
@Override
public void run() {
try {
listenFdServerSocket(tunPFD);
} catch (Exception e) {
LogUtils.e("fdsock failed " + e, e);
}
}
})
.start();
updateStatus("Started in VPN mode");
sendBroadcast(new LaunchedIntent(true));
} catch (Exception e) {
LogUtils.e("establish failed", e);
}
}