Enforce default admin role requirement for API endpoints (#21065)

* require admin role by default

* update all endpoint access guards

* explicit paths and prefixes exception lists

* fix tests to use mock auth

* add helper and simplify auth conditions

* add missing exempt path

* fix test

* make metrics endpoint require auth

frigate/test/http_api/base_http_test.py

@@ -3,6 +3,8 @@ import logging
 import os
 import unittest
 
+from fastapi import Request
+from fastapi.testclient import TestClient
 from peewee_migrate import Router
 from playhouse.sqlite_ext import SqliteExtDatabase
 from playhouse.sqliteq import SqliteQueueDatabase
@@ -16,6 +18,20 @@ from frigate.review.types import SeverityEnum
 from frigate.test.const import TEST_DB, TEST_DB_CLEANUPS
 
 
+class AuthTestClient(TestClient):
+    """TestClient that automatically adds auth headers to all requests."""
+
+    def request(self, *args, **kwargs):
+        # Add default auth headers if not already present
+        headers = kwargs.get("headers") or {}
+        if "remote-user" not in headers:
+            headers["remote-user"] = "admin"
+        if "remote-role" not in headers:
+            headers["remote-role"] = "admin"
+        kwargs["headers"] = headers
+        return super().request(*args, **kwargs)
+
+
 class BaseTestHttp(unittest.TestCase):
     def setUp(self, models):
         # setup clean database for each test run
@@ -113,7 +129,9 @@ class BaseTestHttp(unittest.TestCase):
             pass
 
     def create_app(self, stats=None, event_metadata_publisher=None):
-        return create_fastapi_app(
+        from frigate.api.auth import get_allowed_cameras_for_filter, get_current_user
+
+        app = create_fastapi_app(
             FrigateConfig(**self.minimal_config),
             self.db,
             None,
@@ -123,8 +141,33 @@ class BaseTestHttp(unittest.TestCase):
             stats,
             event_metadata_publisher,
             None,
+            enforce_default_admin=False,
         )
 
+        # Default test mocks for authentication
+        # Tests can override these in their setUp if needed
+        # This mock uses headers set by AuthTestClient
+        async def mock_get_current_user(request: Request):
+            username = request.headers.get("remote-user")
+            role = request.headers.get("remote-role")
+            if not username or not role:
+                from fastapi.responses import JSONResponse
+
+                return JSONResponse(
+                    content={"message": "No authorization headers."}, status_code=401
+                )
+            return {"username": username, "role": role}
+
+        async def mock_get_allowed_cameras_for_filter(request: Request):
+            return list(self.minimal_config.get("cameras", {}).keys())
+
+        app.dependency_overrides[get_current_user] = mock_get_current_user
+        app.dependency_overrides[get_allowed_cameras_for_filter] = (
+            mock_get_allowed_cameras_for_filter
+        )
+
+        return app
+
     def insert_mock_event(
         self,
         id: str,