Silence some not-important VPN error reports

If the network is offline, we don't need to know about it when it
comes back. We also explicitly don't support IPv6, and that's OK
(for now), that's not an error as such.

Author: pimterry

app/src/main/java/tech/httptoolkit/android/ProxyVpnRunnable.kt

@@ -8,9 +8,11 @@ import tech.httptoolkit.android.vpn.SessionHandler
 import tech.httptoolkit.android.vpn.SessionManager
 import tech.httptoolkit.android.vpn.socket.SocketNIODataService
 import io.sentry.Sentry
+import tech.httptoolkit.android.vpn.transport.PacketHeaderException
 import java.io.FileInputStream
 import java.io.FileOutputStream
 import java.io.InterruptedIOException
+import java.net.ConnectException
 import java.net.InetSocketAddress
 import java.nio.ByteBuffer
 
@@ -78,9 +80,16 @@ class ProxyVpnRunnable(
                         packet.limit(length)
                         handler.handlePacket(packet)
                     } catch (e: Exception) {
-                        Sentry.capture(e)
-                        val errorMessage = e.message ?: e.toString()
+                        val errorMessage = (e.message ?: e.toString())
                         Log.e(TAG, errorMessage)
+
+                        val isIgnorable =
+                            (e is ConnectException && errorMessage == "Network is unreachable") ||
+                            (e is PacketHeaderException && errorMessage.contains("IP version should be 4 but was 6"))
+
+                        if (!isIgnorable) {
+                            Sentry.capture(e)
+                        }
                     }
 
                     packet.clear()