feat: enforce waypoints locked_to

app/src/main/java/com/geeksville/mesh/service/MeshService.kt

@@ -574,11 +574,6 @@ class MeshService : Service(), Logging {
     }
 
     private fun rememberDataPacket(dataPacket: DataPacket) {
-        // Now that we use data packets for more things, we need to be choosier about what we keep.  Since (currently - in the future less so)
-        // we only care about old text messages, we just store those...
-        if (dataPacket.dataType == Portnums.PortNum.WAYPOINT_APP_VALUE
-            || dataPacket.dataType == Portnums.PortNum.TEXT_MESSAGE_APP_VALUE
-        ) {
         val fromLocal = dataPacket.from == DataPacket.ID_LOCAL
         val toBroadcast = dataPacket.to == DataPacket.ID_BROADCAST
         val contactId = if (fromLocal || toBroadcast) dataPacket.to else dataPacket.from
@@ -595,7 +590,6 @@ class MeshService : Service(), Logging {
         )
         insertPacket(packetToSave)
     }
-    }
 
     /// Update our model and resend as needed for a MeshPacket we just received from the radio
     private fun handleReceivedData(packet: MeshPacket) {
@@ -613,7 +607,6 @@ class MeshService : Service(), Logging {
                 debug("Received data from $fromId, portnum=${data.portnum} ${bytes.size} bytes")
 
                 dataPacket.status = MessageStatus.RECEIVED
-                rememberDataPacket(dataPacket)
 
                 // if (p.hasUser()) handleReceivedUser(fromNum, p.user)
 
@@ -624,9 +617,17 @@ class MeshService : Service(), Logging {
                     Portnums.PortNum.TEXT_MESSAGE_APP_VALUE ->
                         if (!fromUs) {
                             debug("Received CLEAR_TEXT from $fromId")
+                            rememberDataPacket(dataPacket)
                             updateMessageNotification(dataPacket)
                         }
 
+                    Portnums.PortNum.WAYPOINT_APP_VALUE -> {
+                        val u = MeshProtos.Waypoint.parseFrom(data.payload)
+                        // Validate locked Waypoints from the original sender
+                        if (u.lockedTo != 0 && u.lockedTo != packet.from) return
+                        rememberDataPacket(dataPacket)
+                    }
+
                     // Handle new style position info
                     Portnums.PortNum.POSITION_APP_VALUE -> {
                         var u = MeshProtos.Position.parseFrom(data.payload)