Handle exceptions on request processors in incompatible plugins, and …

…display status in Plugins page

netbox/core/plugins.py

@@ -77,7 +77,7 @@ def get_local_plugins(plugins=None):
     local_plugins = {}
 
     # Gather all locally-installed plugins
-    for plugin_name in registry['plugins']['installed']:
+    for plugin_name in settings.PLUGINS:
         plugin = importlib.import_module(plugin_name)
         plugin_config: PluginConfig = plugin.config
         installed_version = plugin_config.version
@@ -91,15 +91,15 @@ def get_local_plugins(plugins=None):
             tag_line=plugin_config.description,
             description_short=plugin_config.description,
             is_local=True,
-            is_installed=True,
+            is_installed=plugin_name in registry['plugins']['installed'],
             installed_version=installed_version,
         )
 
     # Update catalog entries for local plugins, or add them to the list if not listed
     for k, v in local_plugins.items():
         if k in plugins:
             plugins[k].is_local = True
-            plugins[k].is_installed = True
+            plugins[k].is_installed = k in registry['plugins']['installed']
             plugins[k].installed_version = v.installed_version
         else:
             plugins[k] = v

netbox/netbox/middleware.py

@@ -2,6 +2,7 @@
 
 import logging
 import uuid
+import warnings
 
 from django.conf import settings
 from django.contrib import auth, messages
@@ -37,7 +38,10 @@ def __call__(self, request):
         # Apply all registered request processors
         with ExitStack() as stack:
             for request_processor in registry['request_processors']:
-                stack.enter_context(request_processor(request))
+                try:
+                    stack.enter_context(request_processor(request))
+                except Exception as e:
+                    warnings.warn(f'Failed to initialize request processor {request_processor}: {e}')
             response = self.get_response(request)
 
         # Check if language cookie should be renewed