Ensure null ConnectionService references don't crash phone. (c8bb2bc5) · Commits · e / os / android_packages_services_Telecomm

src/com/android/server/telecom/Call.java

+49 −16

Original line number	Diff line number	Diff line
		@@ -1330,8 +1330,6 @@ public class Call implements CreateConnectionResponse {
		*/
		@VisibleForTesting
		public void answer(int videoState) {
		Preconditions.checkNotNull(mConnectionService);

		// Check to verify that the call is still in the ringing state. A call can change states
		// between the time the user hits 'answer' and Telecom receives the command.
		if (isRinging("answer")) {
		@@ -1344,7 +1342,12 @@ public class Call implements CreateConnectionResponse {
		// that it will work. Instead, we wait until confirmation from the connectino service
		// that the call is in a non-STATE_RINGING state before changing the UI. See
		// {@link ConnectionServiceAdapter#setActive} and other set* methods.
		if (mConnectionService != null) {
		mConnectionService.answer(this, videoState);
		} else {
		Log.e(this, new NullPointerException(),
		"answer call failed due to null CS callId=%s", getId());
		}
		Log.event(this, Log.Events.REQUEST_ACCEPT);
		}
		}
		@@ -1357,16 +1360,20 @@ public class Call implements CreateConnectionResponse {
		*/
		@VisibleForTesting
		public void reject(boolean rejectWithMessage, String textMessage) {
		Preconditions.checkNotNull(mConnectionService);

		// Check to verify that the call is still in the ringing state. A call can change states
		// between the time the user hits 'reject' and Telecomm receives the command.
		if (isRinging("reject")) {
		// Ensure video state history tracks video state at time of rejection.
		mVideoStateHistory \|= mVideoState;

		if (mConnectionService != null) {
		mConnectionService.reject(this, rejectWithMessage, textMessage);
		} else {
		Log.e(this, new NullPointerException(),
		"reject call failed due to null CS callId=%s", getId());
		}
		Log.event(this, Log.Events.REQUEST_REJECT);

		}
		}

		@@ -1374,10 +1381,13 @@ public class Call implements CreateConnectionResponse {
		* Puts the call on hold if it is currently active.
		*/
		void hold() {
		Preconditions.checkNotNull(mConnectionService);

		if (mState == CallState.ACTIVE) {
		if (mConnectionService != null) {
		mConnectionService.hold(this);
		} else {
		Log.e(this, new NullPointerException(),
		"hold call failed due to null CS callId=%s", getId());
		}
		Log.event(this, Log.Events.REQUEST_HOLD);
		}
		}
		@@ -1386,10 +1396,13 @@ public class Call implements CreateConnectionResponse {
		* Releases the call from hold if it is currently active.
		*/
		void unhold() {
		Preconditions.checkNotNull(mConnectionService);

		if (mState == CallState.ON_HOLD) {
		if (mConnectionService != null) {
		mConnectionService.unhold(this);
		} else {
		Log.e(this, new NullPointerException(),
		"unhold call failed due to null CS callId=%s", getId());
		}
		Log.event(this, Log.Events.REQUEST_UNHOLD);
		}
		}
		@@ -1443,7 +1456,12 @@ public class Call implements CreateConnectionResponse {

		// If the change originated from an InCallService, notify the connection service.
		if (source == SOURCE_INCALL_SERVICE) {
		if (mConnectionService != null) {
		mConnectionService.onExtrasChanged(this, mExtras);
		} else {
		Log.e(this, new NullPointerException(),
		"putExtras failed due to null CS callId=%s", getId());
		}
		}
		}

		@@ -1473,7 +1491,12 @@ public class Call implements CreateConnectionResponse {

		// If the change originated from an InCallService, notify the connection service.
		if (source == SOURCE_INCALL_SERVICE) {
		if (mConnectionService != null) {
		mConnectionService.onExtrasChanged(this, mExtras);
		} else {
		Log.e(this, new NullPointerException(),
		"removeExtras failed due to null CS callId=%s", getId());
		}
		}
		}

		@@ -1514,7 +1537,12 @@ public class Call implements CreateConnectionResponse {
		}

		void postDialContinue(boolean proceed) {
		if (mConnectionService != null) {
		mConnectionService.onPostDialContinue(this, proceed);
		} else {
		Log.e(this, new NullPointerException(),
		"postDialContinue failed due to null CS callId=%s", getId());
		}
		}

		void conferenceWith(Call otherCall) {
		@@ -1616,7 +1644,12 @@ public class Call implements CreateConnectionResponse {
		* @param extras Associated extras.
		*/
		public void sendCallEvent(String event, Bundle extras) {
		if (mConnectionService != null) {
		mConnectionService.sendCallEvent(this, event, extras);
		} else {
		Log.e(this, new NullPointerException(),
		"sendCallEvent failed due to null CS callId=%s", getId());
		}
		}

		void setParentCall(Call parentCall) {

src/com/android/server/telecom/CallsManager.java

+10 −1

Original line number	Diff line number	Diff line
		@@ -1693,7 +1693,16 @@ public class CallsManager extends Call.ListenerBase
		* @param incomingCall Incoming call that has been rejected
		*/
		private void rejectCallAndLog(Call incomingCall) {
		if (incomingCall.getConnectionService() != null) {
		// Only reject the call if it has not already been destroyed. If a call ends while
		// incoming call filtering is taking place, it is possible that the call has already
		// been destroyed, and as such it will be impossible to send the reject to the
		// associated ConnectionService.
		incomingCall.reject(false, null);
		} else {
		Log.i(this, "rejectCallAndLog - call already destroyed.");
		}

		// Since the call was not added to the list of calls, we have to call the missed
		// call notifier and the call logger manually.
		// Do we need missed call notification for direct to Voicemail calls?