480 lines
13 KiB
Scala
480 lines
13 KiB
Scala
/*
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* Shadowsocks - A shadowsocks client for Android
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* Copyright (C) 2014 <max.c.lv@gmail.com>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*
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* ___====-_ _-====___
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* _--^^^#####// \\#####^^^--_
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* _-^##########// ( ) \\##########^-_
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* -############// |\^^/| \\############-
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* _/############// (@::@) \\############\_
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* /#############(( \\// ))#############\
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* -###############\\ (oo) //###############-
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* -#################\\ / VV \ //#################-
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* -###################\\/ \//###################-
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* _#/|##########/\######( /\ )######/\##########|\#_
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* |/ |#/\#/\#/\/ \#/\##\ | | /##/\#/ \/\#/\#/\#| \|
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* ` |/ V V ` V \#\| | | |/#/ V ' V V \| '
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* ` ` ` ` / | | | | \ ' ' ' '
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* ( | | | | )
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* __\ | | | | /__
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* (vvv(VVV)(VVV)vvv)
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*
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* HERE BE DRAGONS
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*
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*/
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package com.github.shadowsocks
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import java.io.File
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import java.lang.Process
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import java.util.Locale
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import android.content._
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import android.content.pm.{PackageInfo, PackageManager}
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import android.net.VpnService
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import android.os._
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import android.util.Log
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import android.widget.Toast
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import com.github.shadowsocks.aidl.Config
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import com.github.shadowsocks.utils._
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import org.apache.commons.net.util.SubnetUtils
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import scala.collection.JavaConversions._
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import scala.collection.mutable
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import scala.collection.mutable.ArrayBuffer
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import scala.concurrent.ExecutionContext.Implicits.global
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import scala.concurrent.Future
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class ShadowsocksVpnService extends VpnService with BaseService {
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val TAG = "ShadowsocksVpnService"
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val VPN_MTU = 1500
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val PRIVATE_VLAN = "26.26.26.%s"
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val PRIVATE_VLAN6 = "fdfe:dcba:9876::%s"
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var conn: ParcelFileDescriptor = null
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var apps: Array[ProxiedApp] = null
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var vpnThread: ShadowsocksVpnThread = null
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private var notification: ShadowsocksNotification = _
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var closeReceiver: BroadcastReceiver = null
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var sslocalProcess: Process = null
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var sstunnelProcess: Process = null
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var pdnsdProcess: Process = null
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var tun2socksProcess: Process = null
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def isByass(net: SubnetUtils): Boolean = {
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val info = net.getInfo
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info.isInRange(config.proxy)
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}
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def isPrivateA(a: Int): Boolean = {
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if (a == 10 || a == 192 || a == 172) {
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true
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} else {
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false
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}
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}
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def isPrivateB(a: Int, b: Int): Boolean = {
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if (a == 10 || (a == 192 && b == 168) || (a == 172 && b >= 16 && b < 32)) {
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true
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} else {
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false
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}
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}
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override def onBind(intent: Intent): IBinder = {
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val action = intent.getAction
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if (VpnService.SERVICE_INTERFACE == action) {
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return super.onBind(intent)
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} else if (Action.SERVICE == action) {
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return binder
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}
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null
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}
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override def onCreate() {
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super.onCreate()
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ConfigUtils.refresh(this)
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}
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override def onRevoke() {
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stopRunner()
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}
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override def stopRunner() {
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super.stopRunner()
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if (vpnThread != null) {
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vpnThread.stopThread()
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vpnThread = null
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}
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notification.destroy()
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// channge the state
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changeState(State.STOPPING)
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ShadowsocksApplication.track(TAG, "stop")
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// reset VPN
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killProcesses()
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// close connections
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if (conn != null) {
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conn.close()
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conn = null
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}
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// stop the service if no callback registered
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if (getCallbackCount == 0) {
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stopSelf()
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}
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// clean up recevier
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if (closeReceiver != null) {
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unregisterReceiver(closeReceiver)
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closeReceiver = null
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}
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// channge the state
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changeState(State.STOPPED)
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}
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def getVersionName: String = {
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var version: String = null
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try {
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val pi: PackageInfo = getPackageManager.getPackageInfo(getPackageName, 0)
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version = pi.versionName
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} catch {
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case e: PackageManager.NameNotFoundException =>
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version = "Package name not found"
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}
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version
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}
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def killProcesses() {
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if (sslocalProcess != null) {
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sslocalProcess.destroy()
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sslocalProcess = null
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}
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if (sstunnelProcess != null) {
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sstunnelProcess.destroy()
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sstunnelProcess = null
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}
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if (tun2socksProcess != null) {
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tun2socksProcess.destroy()
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tun2socksProcess = null
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}
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if (pdnsdProcess != null) {
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pdnsdProcess.destroy()
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pdnsdProcess = null
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}
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}
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override def startRunner(config: Config) {
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super.startRunner(config)
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vpnThread = new ShadowsocksVpnThread(this)
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vpnThread.start()
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// register close receiver
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val filter = new IntentFilter()
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filter.addAction(Intent.ACTION_SHUTDOWN)
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filter.addAction(Action.CLOSE)
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closeReceiver = (context: Context, intent: Intent) => {
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Toast.makeText(context, R.string.stopping, Toast.LENGTH_SHORT).show()
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stopRunner()
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}
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registerReceiver(closeReceiver, filter)
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// ensure the VPNService is prepared
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if (VpnService.prepare(this) != null) {
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val i = new Intent(this, classOf[ShadowsocksRunnerActivity])
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i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
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startActivity(i)
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return
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}
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ShadowsocksApplication.track(TAG, "start")
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changeState(State.CONNECTING)
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Future {
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if (config.proxy == "198.199.101.152") {
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val holder = ShadowsocksApplication.containerHolder
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try {
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this.config = ConfigUtils.getPublicConfig(getBaseContext, holder.getContainer, config)
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} catch {
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case ex: Exception =>
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changeState(State.STOPPED, getString(R.string.service_failed))
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stopRunner()
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this.config = null
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}
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}
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if (config != null) {
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// reset the context
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killProcesses()
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// Resolve the server address
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var resolved: Boolean = false
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if (!Utils.isNumeric(config.proxy)) {
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Utils.resolve(config.proxy, enableIPv6 = true) match {
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case Some(addr) =>
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config.proxy = addr
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resolved = true
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case None => resolved = false
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}
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} else {
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resolved = true
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}
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if (resolved && handleConnection) {
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changeState(State.CONNECTED)
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notification = new ShadowsocksNotification(this, config.profileName)
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} else {
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changeState(State.STOPPED, getString(R.string.service_failed))
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stopRunner()
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}
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}
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}
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}
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/** Called when the activity is first created. */
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def handleConnection: Boolean = {
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startShadowsocksDaemon()
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if (!config.isUdpDns) {
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startDnsDaemon()
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startDnsTunnel()
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}
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val fd = startVpn()
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if (fd != -1) {
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var tries = 1
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while (tries < 5) {
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Thread.sleep(1000 * tries)
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if (System.sendfd(fd) != -1) {
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return true
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}
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tries += 1
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}
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}
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false
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}
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def startShadowsocksDaemon() {
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if (config.route != Route.ALL) {
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val acl: Array[String] = config.route match {
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case Route.BYPASS_LAN => getResources.getStringArray(R.array.private_route)
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case Route.BYPASS_CHN => getResources.getStringArray(R.array.chn_route_full)
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}
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ConfigUtils.printToFile(new File(Path.BASE + "acl.list"))(p => {
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acl.foreach(item => p.println(item))
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})
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}
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val conf = ConfigUtils
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.SHADOWSOCKS.formatLocal(Locale.ENGLISH, config.proxy, config.remotePort, config.localPort,
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config.sitekey, config.encMethod, 600)
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ConfigUtils.printToFile(new File(Path.BASE + "ss-local-vpn.conf"))(p => {
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p.println(conf)
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})
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val cmd = new ArrayBuffer[String]
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cmd += (Path.BASE + "ss-local", "-V", "-u"
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, "-b", "127.0.0.1"
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, "-t", "600"
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, "-c", Path.BASE + "ss-local-vpn.conf")
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if (config.isAuth) cmd += "-A"
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if (config.route != Route.ALL) {
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cmd += "--acl"
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cmd += (Path.BASE + "acl.list")
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}
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if (BuildConfig.DEBUG) Log.d(TAG, cmd.mkString(" "))
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sslocalProcess = new ProcessBuilder()
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.command(cmd)
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.redirectErrorStream(true)
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.start()
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}
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def startDnsTunnel() = {
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val conf = ConfigUtils
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.SHADOWSOCKS.formatLocal(Locale.ENGLISH, config.proxy, config.remotePort, 8163,
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config.sitekey, config.encMethod, 10)
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ConfigUtils.printToFile(new File(Path.BASE + "ss-tunnel-vpn.conf"))(p => {
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p.println(conf)
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})
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val cmd = new ArrayBuffer[String]
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cmd += (Path.BASE + "ss-tunnel"
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, "-V"
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, "-u"
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, "-t", "10"
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, "-b", "127.0.0.1"
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, "-l", "8163"
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, "-L", "8.8.8.8:53"
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, "-c", Path.BASE + "ss-tunnel-vpn.conf")
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if (config.isAuth) cmd += "-A"
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if (BuildConfig.DEBUG) Log.d(TAG, cmd.mkString(" "))
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sstunnelProcess = new ProcessBuilder()
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.command(cmd)
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.redirectErrorStream(true)
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.start()
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}
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def startDnsDaemon() {
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val ipv6 = if (config.isIpv6) "" else "reject = ::/0;"
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val conf = {
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if (config.route == Route.BYPASS_CHN) {
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val reject = ConfigUtils.getRejectList(getContext)
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val blackList = ConfigUtils.getBlackList(getContext)
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ConfigUtils.PDNSD_DIRECT.formatLocal(Locale.ENGLISH, "0.0.0.0", 8153,
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reject, blackList, 8163, ipv6)
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} else {
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ConfigUtils.PDNSD_LOCAL.formatLocal(Locale.ENGLISH, "0.0.0.0", 8153,
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8163, ipv6)
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}
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}
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ConfigUtils.printToFile(new File(Path.BASE + "pdnsd-vpn.conf"))(p => {
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p.println(conf)
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})
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val cmd = Path.BASE + "pdnsd -c " + Path.BASE + "pdnsd-vpn.conf"
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if (BuildConfig.DEBUG) Log.d(TAG, cmd)
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pdnsdProcess = new ProcessBuilder()
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.command(cmd.split(" ").toSeq)
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.redirectErrorStream(true)
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.start()
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}
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override def getContext = getBaseContext
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def startVpn(): Int = {
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val builder = new Builder()
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builder
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.setSession(config.profileName)
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.setMtu(VPN_MTU)
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.addAddress(PRIVATE_VLAN.formatLocal(Locale.ENGLISH, "1"), 24)
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.addDnsServer("8.8.8.8")
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if (config.isIpv6) {
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builder.addAddress(PRIVATE_VLAN6.formatLocal(Locale.ENGLISH, "1"), 126)
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builder.addRoute("::", 0)
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}
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if (Utils.isLollipopOrAbove) {
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if (config.isProxyApps) {
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val apps = AppManager.getProxiedApps(this, config.proxiedAppString)
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val pkgSet: mutable.HashSet[String] = new mutable.HashSet[String]
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for (app <- apps) {
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if (app.proxied) {
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pkgSet.add(app.packageName)
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}
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}
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for (pkg <- pkgSet) {
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if (!config.isBypassApps) {
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builder.addAllowedApplication(pkg)
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} else {
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builder.addDisallowedApplication(pkg)
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}
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}
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}
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}
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if (config.route == Route.ALL) {
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builder.addRoute("0.0.0.0", 0)
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} else {
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val privateList = getResources.getStringArray(R.array.bypass_private_route)
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privateList.foreach(cidr => {
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val addr = cidr.split('/')
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builder.addRoute(addr(0), addr(1).toInt)
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})
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}
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builder.addRoute("8.8.0.0", 16)
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try {
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conn = builder.establish()
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if (conn == null) changeState(State.STOPPED, getString(R.string.reboot_required))
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} catch {
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case ex: IllegalStateException =>
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changeState(State.STOPPED, ex.getMessage)
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conn = null
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case ex: Exception =>
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ex.printStackTrace()
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conn = null
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}
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if (conn == null) {
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stopRunner()
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return -1
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}
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val fd = conn.getFd
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var cmd = (Path.BASE +
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"tun2socks --netif-ipaddr %s "
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+ "--netif-netmask 255.255.255.0 "
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+ "--socks-server-addr 127.0.0.1:%d "
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+ "--tunfd %d "
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+ "--tunmtu %d "
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+ "--loglevel 3")
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.formatLocal(Locale.ENGLISH,
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PRIVATE_VLAN.formatLocal(Locale.ENGLISH, "2"),
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config.localPort, fd, VPN_MTU)
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if (config.isIpv6)
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cmd += " --netif-ip6addr " + PRIVATE_VLAN6.formatLocal(Locale.ENGLISH, "2")
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if (config.isUdpDns)
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cmd += " --enable-udprelay"
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else
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cmd += " --dnsgw %s:8153".formatLocal(Locale.ENGLISH, PRIVATE_VLAN.formatLocal(Locale.ENGLISH, "1"))
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if (BuildConfig.DEBUG) Log.d(TAG, cmd)
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tun2socksProcess = new ProcessBuilder()
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.command(cmd.split(" ").toSeq)
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.redirectErrorStream(true)
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.start()
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fd
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}
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override def stopBackgroundService() {
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stopSelf()
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}
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override def getTag = TAG
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override def getServiceMode = Mode.VPN
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}
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