Option to exclude channels with external people

back/back/settings.py

@@ -110,6 +110,7 @@
 SLACK_USE_SOCKET = env.bool("SLACK_USE_SOCKET", default=False)
 SLACK_APP_TOKEN = env("SLACK_APP_TOKEN", default="")
 SLACK_BOT_TOKEN = env("SLACK_BOT_TOKEN", default="")
+SLACK_EXCLUDE_EXT_SHARED_CHANNELS = env.bool("SLACK_EXCLUDE_EXT_SHARED_CHANNELS", False)
 
 MIDDLEWARE = [
     "django.middleware.security.SecurityMiddleware",

back/slack_bot/utils.py

@@ -39,7 +39,15 @@ def get_channels(self):
             )
         except Exception:
             return []
-        return [[x["name"], x["is_private"]] for x in response["channels"]]
+        all_channels = [[x["name"], x["is_private"]] for x in response["channels"]]
+        if settings.SLACK_EXCLUDE_EXT_SHARED_CHANNELS:
+            all_channels = [
+                channel
+                for channel in all_channels
+                if not channel.get("is_ext_shared", False)
+            ]
+
+        return all_channels
 
     def get_all_users(self):
         try:

docs/config/slackbot.md

@@ -48,3 +48,10 @@ settings:
 8. Go back to your Slack bot and go to "App Home". Then scroll down till you see: "Show Tabs". Enable the "message tab" and check the "Allow users to send Slash commands and messages from the messages tab".
 
 That's it!
+
+
+## Importing channels
+
+`SLACK_EXCLUDE_EXT_SHARED_CHANNELS`
+
+Default: `False`. If you don't want to import channels that are being shared with external people, then you can set this to `True` to exclude those.