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The source code is released under:
Apache License
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/* * Copyright (C) 2009 The Android Open Source Project */* w w w .j av a2 s. c o m*/ * 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 edu.bupt.mccdash.bluetooth; import io.vov.vitamio.utils.Base64; import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.File; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import java.io.UnsupportedEncodingException; import java.util.ArrayList; import java.util.HashMap; import java.util.UUID; import edu.bupt.mccdash.MainActivity; import edu.bupt.mccdash.io.FileFactory; import edu.bupt.mccdash.io.Logger; import android.bluetooth.BluetoothAdapter; import android.bluetooth.BluetoothDevice; import android.bluetooth.BluetoothServerSocket; import android.bluetooth.BluetoothSocket; import android.content.Context; import android.os.Bundle; import android.os.Environment; import android.os.Handler; import android.os.Message; import android.util.Log; /** * This class does all the work for setting up and managing Bluetooth * connections with other devices. It has a thread that listens for incoming * connections, a thread for connecting with a device, and a thread for * performing data transmissions when connected. */ public class BluetoothConnectionService { // Debugging private static final String TAG = "BluetoothChatService"; private static final boolean D = true; // Name for the SDP record when creating server socket private static final String NAME_SECURE = "BluetoothChatSecure"; private static final String NAME_INSECURE = "BluetoothChatInsecure"; // Unique UUID for this application private static final UUID MY_UUID_SECURE = UUID .fromString("fa87c0d0-afac-11de-8a39-0800200c9a66"); private static final UUID MY_UUID_INSECURE = UUID .fromString("8ce255c0-200a-11e0-ac64-0800200c9a66"); // Member fields private final BluetoothAdapter mAdapter; private final Handler mHandler; // private AcceptThread mSecureAcceptThread; private AcceptThread mInsecureAcceptThread; private ConnectThread mConnectThread; // private ArrayList<ConnectedThread> threadPool = new // ArrayList<ConnectedThread>(); public static HashMap<String, ConnectedThread> ConnectedThreadPool = new HashMap<String, ConnectedThread>(); public static ArrayList<String> connectedNames = new ArrayList<String>(); // private ConnectedThread mConnectedThread; private int mState; // Constants that indicate the current connection state public static final int STATE_NONE = 0; // we're doing nothing public static final int STATE_LISTEN = 1; // now listening for incoming // connections public static final int STATE_CONNECTING = 2; // now initiating an outgoing // connection public static final int STATE_CONNECTED = 3; // now connected to a remote // device private static int flag=0;//?????????????????????? private static boolean isEnter =false;//??????????????? /** * Constructor. Prepares a new BluetoothChat session. * * @param context * The UI Activity Context * @param handler * A Handler to send messages back to the UI Activity */ public BluetoothConnectionService(Context context, Handler handler) { mAdapter = BluetoothAdapter.getDefaultAdapter(); mState = STATE_NONE; mHandler = handler; } /** * Set the current state of the chat connection * * @param state * An integer defining the current connection state */ private synchronized void setState(int state) { if (D) Log.d(TAG, "setState() " + mState + " -> " + state); mState = state; // Give the new state to the Handler so the UI Activity can update mHandler.obtainMessage(MainActivity.MESSAGE_STATE_CHANGE, state, -1) .sendToTarget(); } /** * Return the current connection state. */ public synchronized int getState() { return mState; } /** * Start the chat service. Specifically start AcceptThread to begin a * session in listening (server) mode. Called by the Activity onResume() */ public synchronized void start() { if (D) Log.d(TAG, "start"); // Cancel any thread attempting to make a connection if (mConnectThread != null) { mConnectThread.cancel(); mConnectThread = null; } // Cancel any thread currently running a connection // if (mConnectedThread != null) {mConnectedThread.cancel(); // mConnectedThread = null;} if (ConnectedThreadPool != null && ConnectedThreadPool.size() != 0) { for (int i = 0; i < connectedNames.size(); i++) { ConnectedThreadPool.get(connectedNames.get(i)).cancel(); } ConnectedThreadPool.clear(); connectedNames.clear(); } setState(STATE_LISTEN); // Start the thread to listen on a BluetoothServerSocket if (mInsecureAcceptThread == null) { mInsecureAcceptThread = new AcceptThread(false); mInsecureAcceptThread.start(); } } /** * Start the ConnectThread to initiate a connection to a remote device. * * @param device * The BluetoothDevice to connect * @param secure * Socket Security type - Secure (true) , Insecure (false) */ public synchronized void connect(BluetoothDevice device, boolean secure) { if (D) Log.d(TAG, "connect to: " + device); // Cancel any thread attempting to make a connection if (mState == STATE_CONNECTING) { if (mConnectThread != null) { mConnectThread.cancel(); mConnectThread = null; } } // Cancel any thread currently running a connection // qq ?????????? ?????????????????????????????????????? // if (mConnectedThread != null) {mConnectedThread.cancel(); // mConnectedThread = null;} // Start the thread to connect with the given device mConnectThread = new ConnectThread(device, secure); mConnectThread.start(); setState(STATE_CONNECTING); } /** * Start the ConnectedThread to begin managing a Bluetooth connection * * @param socket * The BluetoothSocket on which the connection was made * @param device * The BluetoothDevice that has been connected */ public synchronized void connected(BluetoothSocket socket, BluetoothDevice device, final String socketType) { Log.d(TAG, "connected, Socket Type:" + socketType); // Cancel the thread that completed the connection if (mConnectThread != null) { mConnectThread.cancel(); mConnectThread = null; } // Cancel any thread currently running a connection // qq?????????????????????????????????????????????????????????? // if (mConnectedThread != null) {mConnectedThread.cancel(); // mConnectedThread = null;} // Cancel the accept thread because we only want to connect to one // device // ????????????????????????????????????????????????????????????????????????????????????? // qq?????acceptedThread?????????????????????????? // if (mSecureAcceptThread != null) { // mSecureAcceptThread.cancel(); // mSecureAcceptThread = null; // } // if (mInsecureAcceptThread != null) { // mInsecureAcceptThread.cancel(); // mInsecureAcceptThread = null; // } // Start the thread to manage the connection and perform transmissions ConnectedThread mConnectedThread = new ConnectedThread(socket, socketType, device); mConnectedThread.start(); ConnectedThreadPool.put(device.getAddress(), mConnectedThread); connectedNames.add(device.getAddress()); // Send the name of the connected device back to the UI Activity Message msg = mHandler.obtainMessage(MainActivity.MESSAGE_DEVICE_NAME); Bundle bundle = new Bundle(); bundle.putString(MainActivity.DEVICE_NAME, device.getName()); msg.setData(bundle); mHandler.sendMessage(msg); setState(STATE_CONNECTED); // setState( ); } /** * Stop all threads */ public synchronized void stop() { if (D) Log.d(TAG, "stop"); if (mConnectThread != null) { mConnectThread.cancel(); mConnectThread = null; } // if (mConnectedThread != null) { // mConnectedThread.cancel(); // mConnectedThread = null; // } if (ConnectedThreadPool != null && ConnectedThreadPool.size() != 0) { for (int i = 0; i < connectedNames.size(); i++) { ConnectedThreadPool.get(connectedNames.get(i)).cancel(); } ConnectedThreadPool.clear(); connectedNames.clear(); } if (mInsecureAcceptThread != null) { mInsecureAcceptThread.cancel(); mInsecureAcceptThread = null; } setState(STATE_NONE); } /** * Write to the ConnectedThread in an unsynchronized manner * * @param out * The bytes to write * @see ConnectedThread#write(byte[]) */ public void write(byte[] out) { // Create temporary object // ConnectedThread r; HashMap<String, ConnectedThread> rr; // Synchronize a copy of the ConnectedThread synchronized (this) { rr = ConnectedThreadPool; // r = mConnectedThread; } for (int i = 0; i < connectedNames.size(); i++) { ConnectedThreadPool.get(connectedNames.get(i)).write(out); } // r.write(out); } /** * Indicate that the connection attempt failed and notify the UI Activity. */ private void connectionFailed() { // Send a failure message back to the Activity Message msg = mHandler.obtainMessage(MainActivity.MESSAGE_TOAST); Bundle bundle = new Bundle(); bundle.putString(MainActivity.TOAST, "Unable to connect device"); msg.setData(bundle); mHandler.sendMessage(msg); // Start the service over to restart listening mode BluetoothConnectionService.this.start(); } /** * Indicate that the connection was lost and notify the UI Activity. */ private void connectionLost(BluetoothDevice device) { // Send a failure message back to the Activity connectedNames.remove(device.getAddress()); ConnectedThreadPool.remove(device.getAddress()); Message msg = mHandler.obtainMessage(MainActivity.MESSAGE_TOAST); Bundle bundle = new Bundle(); bundle.putString(MainActivity.TOAST, "Device connection was lost"); msg.setData(bundle); mHandler.sendMessage(msg); // Start the service over to restart listening mode BluetoothConnectionService.this.start(); } /** * This thread runs while listening for incoming connections. It behaves * like a server-side client. It runs until a connection is accepted (or * until cancelled). */ private class AcceptThread extends Thread { // The local server socket private final BluetoothServerSocket mmServerSocket; private String mSocketType; public AcceptThread(boolean secure) { BluetoothServerSocket tmp = null; mSocketType = secure ? "Secure" : "Insecure"; // Create a new listening server socket try { if (secure) { tmp = mAdapter.listenUsingRfcommWithServiceRecord( NAME_SECURE, MY_UUID_SECURE); } else { tmp = mAdapter.listenUsingInsecureRfcommWithServiceRecord( NAME_INSECURE, MY_UUID_INSECURE); } } catch (IOException e) { Log.e(TAG, "Socket Type: " + mSocketType + "listen() failed", e); } mmServerSocket = tmp; } public void run() { if (D) Log.d(TAG, "Socket Type: " + mSocketType + "BEGIN mAcceptThread" + this); setName("AcceptThread" + mSocketType); BluetoothSocket socket = null; // Listen to the server socket if we're not connected while (true) { try { // This is a blocking call and will only return on a // successful connection or an exception socket = mmServerSocket.accept(); } catch (IOException e) { Log.e(TAG, "Socket Type: " + mSocketType + "accept() failed", e); break; } // If a connection was accepted if (socket != null) { synchronized (BluetoothConnectionService.this) { switch (mState) { case STATE_LISTEN: case STATE_CONNECTING: // Situation normal. Start the connected thread. connected(socket, socket.getRemoteDevice(), mSocketType); break; case STATE_NONE: case STATE_CONNECTED: // Either not ready or already connected. Terminate // new socket. connected(socket, socket.getRemoteDevice(), mSocketType); break; } } } } if (D) Log.i(TAG, "END mAcceptThread, socket Type: " + mSocketType); } public void cancel() { if (D) Log.d(TAG, "Socket Type" + mSocketType + "cancel " + this); try { mmServerSocket.close(); } catch (IOException e) { Log.e(TAG, "Socket Type" + mSocketType + "close() of server failed", e); } } } /** * This thread runs while attempting to make an outgoing connection with a * device. It runs straight through; the connection either succeeds or * fails. */ private class ConnectThread extends Thread { private final BluetoothSocket mmSocket; private final BluetoothDevice mmDevice; private String mSocketType; public ConnectThread(BluetoothDevice device, boolean secure) { mmDevice = device; BluetoothSocket tmp = null; mSocketType = secure ? "Secure" : "Insecure"; // Get a BluetoothSocket for a connection with the // given BluetoothDevice try { if (secure) { tmp = device .createRfcommSocketToServiceRecord(MY_UUID_SECURE); } else { tmp = device .createInsecureRfcommSocketToServiceRecord(MY_UUID_INSECURE); } } catch (IOException e) { Log.e(TAG, "Socket Type: " + mSocketType + "create() failed", e); } mmSocket = tmp; } public void run() { Log.i(TAG, "BEGIN mConnectThread SocketType:" + mSocketType); setName("ConnectThread" + mSocketType); // Always cancel discovery because it will slow down a connection mAdapter.cancelDiscovery(); // Make a connection to the BluetoothSocket try { // This is a blocking call and will only return on a // successful connection or an exception mmSocket.connect(); } catch (IOException e) { // Close the socket try { mmSocket.close(); } catch (IOException e2) { Log.e(TAG, "unable to close() " + mSocketType + " socket during connection failure", e2); } connectionFailed(); return; } // Reset the ConnectThread because we're done synchronized (BluetoothConnectionService.this) { mConnectThread = null; } // Start the connected thread connected(mmSocket, mmDevice, mSocketType); } public void cancel() { try { mmSocket.close(); } catch (IOException e) { Log.e(TAG, "close() of connect " + mSocketType + " socket failed", e); } } } /** * This thread runs during a connection with a remote device. It handles all * incoming and outgoing transmissions. */ private class ConnectedThread extends Thread { private final BluetoothSocket mmSocket; private final InputStream mmInStream; private final OutputStream mmOutStream; private BluetoothDevice mDevice; private StringBuilder sb; public ConnectedThread(BluetoothSocket socket, String socketType, BluetoothDevice device) { Log.d(TAG, "create ConnectedThread: " + socketType); mmSocket = socket; InputStream tmpIn = null; OutputStream tmpOut = null; mDevice = device; // Get the BluetoothSocket input and output streams try { tmpIn = socket.getInputStream(); tmpOut = socket.getOutputStream(); } catch (IOException e) { Log.e(TAG, "temp sockets not created", e); } mmInStream = tmpIn; mmOutStream = tmpOut; sb = new StringBuilder(); } public void run() { Log.i(TAG, "BEGIN mConnectedThread"); byte[] buffer = null; int bytes; int totalLength=0; int actualLength=0; FileInfo fileInfo = null; ByteArrayOutputStream bao = new ByteArrayOutputStream (); while (true) { try { int length = mmInStream.available(); totalLength+=length; //Log.v(TAG, "available length: "+length+" totalLength: "+totalLength); buffer = new byte[length]; bytes = mmInStream.read(buffer); actualLength+=bytes; byte[] readBuf = (byte[]) buffer; //Log.v(TAG, "available length: "+length+" actualLength: "+actualLength); String readMessage = new String(readBuf, 0, bytes); //Log.v(TAG, "readMessage: "+readMessage); if(!isEnter&&readMessage.contains("START: BYTE")){ String startString = new String(readBuf, 0, bytes); Log.v(TAG, "Enter ----START:BYTE----"); //obtain the length and the file name from string. fileInfo = FileInfo.getFileInfoFromString(startString); Log.v(TAG, "Enter ----START:BYTE---- file name: "+fileInfo.fileName+" file start: "+fileInfo.fileStartPoint); flag=1; isEnter=true; // in case that the after END length segment there are also some bytes remains. if(startString.length()!=(startString.indexOf("END LENGTH")+"END LENGTH".length()+1)){ int endIndex = startString.indexOf("END LENGTH")+"END LENGTH".length(); String tempString = startString.substring(0, endIndex); Log.v(TAG, "startString.length()!=\"END LENGTH\".length()"+"tempString: "+tempString+" startString:"+startString); int startPos=tempString.getBytes().length; Log.v(TAG, "readMessage.length()!=\"END LENGTH\".length() startPos: "+startPos+" readBuf: "+readBuf.length); bao.write(readBuf, startPos, readBuf.length-startPos); } continue;//???????????? }else if(!isEnter&&readMessage.contains("START: M3U8:")){ String m3u8String = new String(readBuf, 0, bytes); Log.v(TAG, "Enter ----START: M3U8:----"); if("START: M3U8:".length()!=m3u8String.length()){ if(m3u8String.contains("END M3U8")){ String subString = m3u8String.substring("START: M3U8:".length(),m3u8String.indexOf("END M3U8")); sb.append(subString); mHandler.obtainMessage(MainActivity.FINISH_M3U8, sb.toString().length(), -1, sb.toString()).sendToTarget(); sb = new StringBuilder(); }else{ String subString = m3u8String.substring("START: M3U8:".length()); sb.append(subString); flag=2; isEnter=true; } }else{ flag=2; isEnter=true; } continue;//????????? //flag=2; //isEnter=true; } if(isEnter&&flag==2){ String Message = new String(readBuf, 0, bytes); Log.v(TAG, "Enter ----flag==2---- Message:"+Message); if(Message.contains("END M3U8")){ Log.v(TAG, "Enter ----END M3U8"); if(Message.indexOf("END M3U8")>0){ Log.v(TAG, "Enter ----END M3U8 Message.indexOf(\"END: BYTE\"):"+Message.indexOf("END M3U8")); flag=0; isEnter=false; String subString = Message.substring(0,Message.indexOf("END M3U8")); sb.append(subString); Log.v(TAG, "Enter ----END M3U8 final Message:"+sb.toString()); mHandler.obtainMessage(MainActivity.FINISH_M3U8, sb.toString().length(), -1, sb.toString()).sendToTarget(); sb = new StringBuilder(); }else{ flag=0; isEnter=false; Log.v(TAG, "Enter ----END M3U8 final Message:"+sb.toString()); mHandler.obtainMessage(MainActivity.FINISH_M3U8, sb.toString().length(), -1, sb.toString()).sendToTarget(); sb = new StringBuilder(); } continue; } sb.append(Message); } if(isEnter&&flag==1){ String readMessageEnd = new String(readBuf, 0, bytes); Log.v(TAG, "Enter ----flag==1---- readMEssageEnd:"+readMessageEnd); if(readMessageEnd.contains("END: BYTE")){ Log.v(TAG, "Enter ----END: BYTE"); if(readMessageEnd.indexOf("END: BYTE")>0){ //int i= Log.v(TAG, "Enter ----END: BYTE readMessageEnd.indexOf(\"END: BYTE\"):"+readMessageEnd.indexOf("END: BYTE")); int endLength = "END: BYTE".getBytes().length; Log.v(TAG, "Enter ----END: BYTE readBuf.length:"+readBuf.length+" length: "+(readBuf.length-endLength)); bao.write(readBuf,0,readBuf.length-endLength); } flag=0; isEnter=false; bao.flush(); byte[] endFile =bao.toByteArray(); InputStream input = new ByteArrayInputStream(endFile); FileFactory.RandomAccess("mccdash", "/" + fileInfo.fileName, input, fileInfo.fileStartPoint); bao.reset(); input.close(); if(readMessageEnd.contains("START: BYTE")){ fileInfo = FileInfo.getFileInfoFromString(readMessageEnd); Log.v(TAG, "Enter ---END BYTE---START:BYTE---- file name: "+fileInfo.fileName+" file start: "+fileInfo.fileStartPoint); flag=1; isEnter=true; // in case that the after END length segment there are also some bytes remains. if(readMessageEnd.length()!=(readMessageEnd.indexOf("END LENGTH")+"END LENGTH".length()+1)){ int endIndex = readMessageEnd.indexOf("END LENGTH")+"END LENGTH".length(); String tempString = readMessageEnd.substring(0, endIndex); Log.v(TAG, "startString.length()!=\"END LENGTH\".length()"+" endIndex: "+endIndex+" tempString: "+tempString+" readMessageEnd:"+readMessageEnd); int startPos=tempString.getBytes().length; Log.v(TAG, "readMessageEnd.length()!=\"END LENGTH\".length() startPos: "+startPos+" readBuf: "+readBuf.length); bao.write(readBuf, startPos, readBuf.length-startPos); } } mHandler.obtainMessage(MainActivity.START_PLAY_VIDEO, fileInfo.fileLength, -1, fileInfo.fileName).sendToTarget(); continue; } bao.write(readBuf); } // String readMessage=Base64.encodeToString(readBuf, Base64.DEFAULT); //??base64??? //String readMessage = new String(readBuf, 0, bytes); //?????????????? // Log.v(TAG, "read Message: "+readMessage); // if (readMessage.startsWith("END M3U8:")) { // mHandler.obtainMessage(MainActivity.FINISH_M3U8, bytes, // -1, sb.toString()).sendToTarget(); // sb = new StringBuilder(); // // } else if (readMessage.startsWith("END TS:")) { // mHandler.obtainMessage(MainActivity.FINISH_TS, bytes, // -1, readMessage).sendToTarget(); // sb = new StringBuilder(); // // } else if (readMessage.contains(Base64.encodeToString("***".getBytes(), Base64.DEFAULT))) { // // String end_64=Base64.encodeToString("***".getBytes(), Base64.DEFAULT); // Log.v(TAG, "readMessage end_64: "+end_64); // //end_64=baseTOUtf(end_64); // Log.v(TAG, "readMessage end_64: "+end_64); // readMessage=readMessage.substring(0, readMessage.indexOf(end_64)); // Log.v(TAG, "readMessage subString: "+readMessage); // sb.append(readMessage); // Log.v(TAG, "END TT"); // // String test =sb.toString(); // //Base64.decode(test, Base64.NO_PADDING); // //Logger.i(test); // Log.v(TAG, "END FINISH TT----test.length:"+test.length()); // // // byte[] testByte=Base64.decode(test, Base64.DEFAULT); // //byte[] testByte=test.getBytes(); // // Log.v(TAG, "END FINISH TT----testByte.length:"+testByte.length); // // InputStream input = new ByteArrayInputStream(testByte); // // //????????????????????????base64??? // FileFactory.RandomAccess(FileFactory.SDPath, "/" + "rceivedfile.mp4", input, 0); // //// mHandler.obtainMessage(MainActivity.FINISH_TS, bytes, //// -1, readMessage).sendToTarget(); //// sb = new StringBuilder(); // // // } // else { // //// if(readMessage.length()>0){ // // Log.v(TAG, "Start transfer"); // // String base=Base64.encodeToString("***".getBytes(), Base64.DEFAULT); // // Log.v(TAG, "Start transfer base---"+base); // // if(readMessage.contains(base)){ // Log.v(TAG, "readMessage.contains(base)"+readMessage.substring(readMessage.length()-20, readMessage.length())); // } // // // //// else{ //// Log.v(TAG, "not readMessage.contains(base)"+readMessage.substring(readMessage.length()-20, readMessage.length())); //// if(readMessage.contains("\n")){ //// Log.v(TAG, "readMessage.contains(\"\n\")"); //// //// } //// } // // sb.append(readMessage); // //// } // } } catch (IOException e) { Log.e(TAG, "disconnected", e); connectionLost(mDevice); // Start the service over to restart listening mode BluetoothConnectionService.this.start(); break; } } } /** * Write to the connected OutStream. * * @param buffer * The bytes to write */ public void write(byte[] buffer) { try { //??????? mmOutStream.write(buffer); // mmOutStream.write("END:".getBytes()); // Share the sent message back to the UI Activity // mHandler.obtainMessage(MainActivity.MESSAGE_WRITE, -1, -1, // buffer) // .sendToTarget(); } catch (IOException e) { Log.e(TAG, "Exception during write", e); } } public String baseTOUtf(String str) throws UnsupportedEncodingException{ byte[] data = Base64.decode(str, Base64.DEFAULT); String text = new String(data, "UTF-8"); return text; } public void cancel() { try { mmSocket.close(); } catch (IOException e) { Log.e(TAG, "close() of connect socket failed", e); } } } }