example-bot: Add catchall except in decryption and encryption

Signed-off-by: Maxime “pep” Buquet <pep@bouah.net>

examples/echo_client.py

@@ -125,6 +125,9 @@ class EchoBot(ClientXMPP):
             # resolve. At this point you should have seen other exceptions
             # and given a chance to resolve them already.
             await self.plain_reply(msg, 'I was not able to decrypt the message.')
+        except (Exception,) as exn:
+            await self.plain_reply(msg, 'An error occured while attempting decryption.\n%r' % exn)
+            raise
 
         return None
 
@@ -163,7 +166,11 @@ class EchoBot(ClientXMPP):
                 # This is where you prompt your user to ask what to do.
                 self['xep_0384'].trust(exn.bare_jid, exn.device, exn.ik)
             except Exception as exn:
-                break
+                await self.plain_reply(
+                    original_msg,
+                    'An error occured while attempting to encrypt.\n%r' % exn,
+                )
+                raise
 
         return None