Make things a lil more robust to voipms errors

slidgevoipms/gateway.py

@@ -59,8 +59,11 @@ class Gateway(BaseGateway):
             }) as response:
                 # For whatever cursed reason, this call sometimes returns with
                 # text/html as the content type, so we disable the check
-                json = await response.json(content_type=None)
-                if json['status'] == 'success':
-                    return
-                else:
-                    raise XMPPError("Received error from voipms")
+                try:
+                    json = await response.json(content_type=None)
+                    if json['status'] == 'success':
+                        return
+                    else:
+                        raise XMPPError("Received error from voipms")
+                except:
+                    raise XMPPError("Failure decoding response from voipms")

slidgevoipms/session.py

@@ -92,6 +92,7 @@ class Session(BaseSession[str, Contact]):
             'all_messages': 1,
             'content_type': 'json',
         }) as response:
+          try:
             json = await response.json()
             log.debug(f"received messages from voipms {json}")
 
@@ -99,6 +100,9 @@ class Session(BaseSession[str, Contact]):
                 return []
             else:
                 return json['sms']
+          except client_exceptions.ContentTypeError:
+            log.warning("Received non-json response from voipms")
+            return []
 
     async def on_file(self, chat: Contact, url: str, **_kwargs):
         f = self.user.registration_form