| /* |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.dumprendertree2.forwarder; |
| |
| import android.util.Log; |
| |
| import java.io.IOException; |
| import java.net.ServerSocket; |
| import java.net.Socket; |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| /** |
| * A port forwarding server. Listens on localhost on specified port and forwards the tcp |
| * communications to external socket via adb networking proxy. |
| */ |
| public class Forwarder extends Thread { |
| private static final String LOG_TAG = "Forwarder"; |
| |
| private int mPort; |
| private String mRemoteMachineIpAddress; |
| |
| private ServerSocket mServerSocket; |
| |
| private Set<ConnectionHandler> mConnectionHandlers = new HashSet<ConnectionHandler>(); |
| |
| public Forwarder(int port, String remoteMachineIpAddress) { |
| mPort = port; |
| mRemoteMachineIpAddress = remoteMachineIpAddress; |
| } |
| |
| @Override |
| public void start() { |
| Log.i(LOG_TAG, "start(): Starting fowarder on port: " + mPort); |
| |
| try { |
| mServerSocket = new ServerSocket(mPort); |
| } catch (IOException e) { |
| Log.e(LOG_TAG, "mPort=" + mPort, e); |
| return; |
| } |
| |
| super.start(); |
| } |
| |
| @Override |
| public void run() { |
| while (true) { |
| Socket localSocket; |
| try { |
| localSocket = mServerSocket.accept(); |
| } catch (IOException e) { |
| /** This most likely means that mServerSocket is already closed */ |
| Log.w(LOG_TAG, "mPort=" + mPort, e); |
| break; |
| } |
| |
| Socket remoteSocket = null; |
| final ConnectionHandler connectionHandler; |
| try { |
| remoteSocket = AdbUtils.createSocket(); |
| connectionHandler = new ConnectionHandler( |
| mRemoteMachineIpAddress, mPort, localSocket, remoteSocket); |
| } catch (IOException exception) { |
| try { |
| localSocket.close(); |
| } catch (IOException e) { |
| Log.e(LOG_TAG, "mPort=" + mPort, e); |
| } |
| if (remoteSocket != null) { |
| try { |
| remoteSocket.close(); |
| } catch (IOException e) { |
| Log.e(LOG_TAG, "mPort=" + mPort, e); |
| } |
| } |
| continue; |
| } |
| |
| /** |
| * We have to close the sockets after the ConnectionHandler finishes, so we |
| * don't get "Too may open files" exception. We also remove the ConnectionHandler |
| * from the collection to avoid memory issues. |
| * */ |
| ConnectionHandler.OnFinishedCallback callback = |
| new ConnectionHandler.OnFinishedCallback() { |
| @Override |
| public void onFinished() { |
| synchronized (this) { |
| if (!mConnectionHandlers.remove(connectionHandler)) { |
| assert false : "removeConnectionHandler(): not in the collection"; |
| } |
| } |
| } |
| }; |
| connectionHandler.registerOnConnectionHandlerFinishedCallback(callback); |
| |
| synchronized (this) { |
| mConnectionHandlers.add(connectionHandler); |
| } |
| connectionHandler.start(); |
| } |
| |
| synchronized (this) { |
| for (ConnectionHandler connectionHandler : mConnectionHandlers) { |
| connectionHandler.stop(); |
| } |
| } |
| } |
| |
| public void finish() { |
| try { |
| mServerSocket.close(); |
| } catch (IOException e) { |
| Log.e(LOG_TAG, "mPort=" + mPort, e); |
| } |
| } |
| } |