From 4422ac7f45f04b8ffb142fadf984c7c9e8438a51 Mon Sep 17 00:00:00 2001
From: Timothy Pogue <me@pogue.dev>
Date: Fri, 16 Sep 2022 19:22:24 -0600
Subject: [PATCH] constrain port in config, catch value error

---
 freqtrade/constants.py                     | 7 ++++++-
 freqtrade/rpc/external_message_consumer.py | 4 ++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/freqtrade/constants.py b/freqtrade/constants.py
index 2fc855fbd..835b9dfcc 100644
--- a/freqtrade/constants.py
+++ b/freqtrade/constants.py
@@ -497,7 +497,12 @@ CONF_SCHEMA = {
                         'properties': {
                             'name': {'type': 'string'},
                             'host': {'type': 'string'},
-                            'port': {'type': 'integer', 'default': 8080},
+                            'port': {
+                                'type': 'integer',
+                                'default': 8080,
+                                'minimum': 0,
+                                'maximum': 65535
+                            },
                             'ws_token': {'type': 'string'},
                         },
                         'required': ['name', 'host', 'ws_token']
diff --git a/freqtrade/rpc/external_message_consumer.py b/freqtrade/rpc/external_message_consumer.py
index e4b3c2609..220f98706 100644
--- a/freqtrade/rpc/external_message_consumer.py
+++ b/freqtrade/rpc/external_message_consumer.py
@@ -205,6 +205,10 @@ class ExternalMessageConsumer:
                     # Now receive data, if none is within the time limit, ping
                     await self._receive_messages(channel, producer, lock)
 
+            except (websockets.exceptions.InvalidURI, ValueError) as e:
+                logger.error(f"{ws_url} is an invalid WebSocket URL - {e}")
+                break
+
             except (
                 socket.gaierror,
                 ConnectionRefusedError,