Support loopback mode and command line execution

for Android AppRTCDemo when using WebSocket signaling.

- Add loopback support for new signaling. In loopback mode
only room connection is established, WebSocket connection is
not opened and all candidate/sdp messages are automatically
routed back.
- Fix command line support both for channek and new signaling.
Exit from application when room connection is closed and add
an option to run application for certain time period and exit.
- Plus some fixes for WebSocket signaling - support
POST (not used for now) and DELETE request to WebSocket server
and making sure that all available TURN server are used by
peer connection client.

BUG=3995,3937
R=jiayl@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/24339004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@7725 4adac7df-926f-26a2-2b94-8c16560cd09d

talk/examples/android/src/org/appspot/apprtc/ConnectActivity.java

@@ -62,10 +62,14 @@ import org.webrtc.MediaCodecVideoEncoder;
  */
 public class ConnectActivity extends Activity {
 
+  public static final String EXTRA_LOOPBACK = "org.appspot.apprtc.LOOPBACK";
+  public static final String EXTRA_CMDLINE = "org.appspot.apprtc.CMDLINE";
+  public static final String EXTRA_RUNTIME = "org.appspot.apprtc.RUNTIME";
   private static final String TAG = "ConnectActivity";
   private final boolean USE_WEBSOCKETS = false;
   private final String APPRTC_SERVER = "https://apprtc.appspot.com";
   private final String APPRTC_WS_SERVER = "https://8-dot-apprtc.appspot.com";
+  private final int CONNECTION_REQUEST = 1;
 
   private ImageButton addRoomButton;
   private ImageButton removeRoomButton;
@@ -81,6 +85,8 @@ public class ConnectActivity extends Activity {
   private String keyprefRoomList;
   private ArrayList<String> roomList;
   private ArrayAdapter<String> adapter;
+  private boolean commandLineRun;
+  private int runTimeMs;
 
   @Override
   public void onCreate(Bundle savedInstanceState) {
@@ -95,27 +101,20 @@ public class ConnectActivity extends Activity {
     keyprefRoom = getString(R.string.pref_room_key);
     keyprefRoomList = getString(R.string.pref_room_list_key);
 
-    // If an implicit VIEW intent is launching the app, go directly to that URL.
-    final Intent intent = getIntent();
-    if ("android.intent.action.VIEW".equals(intent.getAction())) {
-      connectToRoom(intent.getData().toString());
-      return;
-    }
-
     setContentView(R.layout.activity_connect);
 
     roomEditText = (EditText) findViewById(R.id.room_edittext);
     roomEditText.setOnEditorActionListener(
-        new TextView.OnEditorActionListener() {
-          @Override
-          public boolean onEditorAction(
-              TextView textView, int i, KeyEvent keyEvent) {
-            if (i == EditorInfo.IME_ACTION_DONE) {
-              addRoomButton.performClick();
-              return true;
-            }
-            return false;
+      new TextView.OnEditorActionListener() {
+        @Override
+        public boolean onEditorAction(
+            TextView textView, int i, KeyEvent keyEvent) {
+          if (i == EditorInfo.IME_ACTION_DONE) {
+            addRoomButton.performClick();
+            return true;
           }
+          return false;
+        }
     });
     roomEditText.requestFocus();
 
@@ -131,6 +130,21 @@ public class ConnectActivity extends Activity {
     connectLoopbackButton =
         (ImageButton) findViewById(R.id.connect_loopback_button);
     connectLoopbackButton.setOnClickListener(connectListener);
+
+    // If an implicit VIEW intent is launching the app, go directly to that URL.
+    commandLineRun = false;
+    final Intent intent = getIntent();
+    if ("android.intent.action.VIEW".equals(intent.getAction())) {
+      commandLineRun = true;
+      boolean loopback = intent.getBooleanExtra(EXTRA_LOOPBACK, false);
+      runTimeMs = intent.getIntExtra(EXTRA_RUNTIME, 0);
+      String url = intent.getData().toString();
+      if (loopback && !url.contains("debug=loopback")) {
+        url += "/?debug=loopback";
+      }
+      connectToRoom(url, loopback);
+      return;
+    }
   }
 
   @Override
@@ -188,6 +202,16 @@ public class ConnectActivity extends Activity {
     }
   }
 
+  @Override
+  protected void onActivityResult(
+      int requestCode, int resultCode, Intent data) {
+    if (requestCode == CONNECTION_REQUEST && commandLineRun) {
+      Log.d(TAG, "Return: " + resultCode);
+      setResult(resultCode);
+      finish();
+    }
+  }
+
   private final OnClickListener connectListener = new OnClickListener() {
     @Override
     public void onClick(View view) {
@@ -195,11 +219,13 @@ public class ConnectActivity extends Activity {
       if (view.getId() == R.id.connect_loopback_button) {
         loopback = true;
       }
-      String url = APPRTC_SERVER;
+      String url;
       if (USE_WEBSOCKETS) {
         url = APPRTC_WS_SERVER;
+      } else {
+        url = APPRTC_SERVER;
       }
-      if (loopback && !USE_WEBSOCKETS) {
+      if (loopback) {
         url += "/?debug=loopback";
       } else {
         String roomName = getSelectedItem();
@@ -267,16 +293,19 @@ public class ConnectActivity extends Activity {
         url += "&googCpuOveruseDetection=false";
       }
       // TODO(kjellander): Add support for custom parameters to the URL.
-      connectToRoom(url);
+      connectToRoom(url, loopback);
     }
   };
 
-  private void connectToRoom(String roomUrl) {
+  private void connectToRoom(String roomUrl, boolean loopback) {
     if (validateUrl(roomUrl)) {
       Uri url = Uri.parse(roomUrl);
       Intent intent = new Intent(this, AppRTCDemoActivity.class);
       intent.setData(url);
-      startActivity(intent);
+      intent.putExtra(EXTRA_LOOPBACK, loopback);
+      intent.putExtra(EXTRA_CMDLINE, commandLineRun);
+      intent.putExtra(EXTRA_RUNTIME, runTimeMs);
+      startActivityForResult(intent, CONNECTION_REQUEST);
     }
   }