Ensure the incoming call will not ring forever, in case the call is not ended by another way (#8178)

Add a safe 2 minutes timer.

Author: bmarty

changelog.d/8178.bugfix

@@ -0,0 +1 @@
+Ensure the incoming call will not ring forever, in case the call is not ended by another way.

vector/src/main/java/im/vector/app/features/call/webrtc/WebRtcCallManager.kt

@@ -34,6 +34,8 @@ import im.vector.app.features.call.vectorCallService
 import im.vector.app.features.session.coroutineScope
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.asCoroutineDispatcher
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.launch
 import org.matrix.android.sdk.api.extensions.orFalse
 import org.matrix.android.sdk.api.extensions.tryOrNull
 import org.matrix.android.sdk.api.logger.LoggerTag
@@ -386,6 +388,14 @@ class WebRtcCallManager @Inject constructor(
                 // Maybe increase sync freq? but how to set back to default values?
             }
         }
+
+        // ensure the incoming call will not ring forever
+        sessionScope?.launch {
+            delay(2 * 60 * 1000 /* 2 minutes */)
+            if (mxCall.state is CallState.LocalRinging) {
+                onCallEnded(mxCall.callId, EndCallReason.INVITE_TIMEOUT, rejected = false)
+            }
+        }
     }
 
     override fun onCallAnswerReceived(callAnswerContent: CallAnswerContent) {