bot_config: Have check_valid_bot_config also take the bot_type.

This is a prep commit to allow us to validate user provided bot
config data using the same function for incoming webhook type
bots alongside embedded bots (as opposed to creating a new
function just for incoming webhook bots).

zerver/lib/users.py

@@ -47,19 +47,21 @@ def check_short_name(short_name_raw: str) -> str:
         raise JsonableError(_("Bad name or username"))
     return short_name
 
-def check_valid_bot_config(service_name: str, config_data: Dict[str, str]) -> None:
-    try:
-        from zerver.lib.bot_lib import get_bot_handler
-        bot_handler = get_bot_handler(service_name)
-        if hasattr(bot_handler, 'validate_config'):
-            bot_handler.validate_config(config_data)
-    except ConfigValidationError:
-        # The exception provides a specific error message, but that
-        # message is not tagged translatable, because it is
-        # triggered in the external zulip_bots package.
-        # TODO: Think of some clever way to provide a more specific
-        # error message.
-        raise JsonableError(_("Invalid configuration data!"))
+def check_valid_bot_config(bot_type: int, service_name: str,
+                           config_data: Dict[str, str]) -> None:
+    if bot_type == UserProfile.EMBEDDED_BOT:
+        try:
+            from zerver.lib.bot_lib import get_bot_handler
+            bot_handler = get_bot_handler(service_name)
+            if hasattr(bot_handler, 'validate_config'):
+                bot_handler.validate_config(config_data)
+        except ConfigValidationError:
+            # The exception provides a specific error message, but that
+            # message is not tagged translatable, because it is
+            # triggered in the external zulip_bots package.
+            # TODO: Think of some clever way to provide a more specific
+            # error message.
+            raise JsonableError(_("Invalid configuration data!"))
 
 # Adds an outgoing webhook or embedded bot service.
 def add_service(name: str, user_profile: UserProfile, base_url: Optional[str]=None,

zerver/views/users.py

@@ -321,7 +321,7 @@ def add_bot_backend(
             user_profile, default_events_register_stream_name)
 
     if bot_type == UserProfile.EMBEDDED_BOT:
-        check_valid_bot_config(service_name, config_data)
+        check_valid_bot_config(bot_type, service_name, config_data)
 
     bot_profile = do_create_user(email=email, password='',
                                  realm=user_profile.realm, full_name=full_name,