Enhance user roles to limit camera access (#20024)

* update config for roles and add validator

* ensure admin and viewer are never overridden

* add class method to user to retrieve all allowed cameras

* enforce config roles in auth api endpoints

* add camera access api dependency functions

* protect review endpoints

* protect preview endpoints

* rename param name for better fastapi injection matching

* remove unneeded

* protect export endpoints

* protect event endpoints

* protect media endpoints

* update auth hook for allowed cameras

* update default app view

* ensure anonymous user always returns all cameras

* limit cameras in explore

* cameras is already a list

* limit cameras in review/history

* limit cameras in live view

* limit cameras in camera groups

* only show face library and classification in sidebar for admin

* remove check in delete reviews

since admin role is required, no need to check camera access. fixes failing test

* pass request with camera access for tests

* more async

* camera access tests

* fix proxy auth tests

* allowed cameras for review tests

* combine event tests and refactor for camera access

* fix post validation for roles

* don't limit roles in create user dialog

* fix triggers endpoints

no need to run require camera access dep since the required role is admin

* fix type

* create and edit role dialogs

* delete role dialog

* fix role change dialog

* update settings view for roles

* i18n changes

* minor spacing tweaks

* docs

* use badges and camera name label component

* clarify docs

* display all cameras badge for admin and viewer

* i18n fix

* use validator to prevent reserved and empty roles from being assigned

* split users and roles into separate tabs in settings

* tweak docs

* clarify docs

* change icon

* don't memoize roles

always recalculate on component render

frigate/models.py

@@ -135,6 +135,18 @@ class User(Model):
     password_hash = CharField(null=False, max_length=120)
     notification_tokens = JSONField()
 
+    @classmethod
+    def get_allowed_cameras(
+        cls, role: str, roles_dict: dict[str, list[str]], all_camera_names: set[str]
+    ) -> list[str]:
+        if role not in roles_dict:
+            return []  # Invalid role grants no access
+        allowed = roles_dict[role]
+        if not allowed:  # Empty list means all cameras
+            return list(all_camera_names)
+
+        return [cam for cam in allowed if cam in all_camera_names]
+
 
 class Trigger(Model):
     camera = CharField(max_length=20)