Fix Control Center left nav endpoint check

application/single_app/config.py

@@ -96,7 +96,7 @@
 EXECUTOR_TYPE = 'thread'
 EXECUTOR_MAX_WORKERS = 30
 SESSION_TYPE = 'filesystem'
-VERSION = "0.250.051"
+VERSION = "0.250.052"
 
 SESSION_COOKIE_SAMESITE = os.getenv('SESSION_COOKIE_SAMESITE', 'Lax')
 SESSION_COOKIE_HTTPONLY = os.getenv('SESSION_COOKIE_HTTPONLY', 'true').lower() != 'false'

application/single_app/templates/_sidebar_nav.html

@@ -844,7 +844,7 @@
     <!-- Access logic: When require_member_of_control_center_admin is ENABLED, only ControlCenterAdmin role grants access -->
     <!-- When DISABLED (default), only regular Admin role grants access (ControlCenterAdmin is ignored) -->
     <!-- DashboardReader role grants dashboard-only access when that setting is enabled -->
-    {% if request.endpoint == 'control_center' and ((app_settings.require_member_of_control_center_admin and session.get('user') and 'ControlCenterAdmin' in session['user']['roles']) or (app_settings.require_member_of_control_center_dashboard_reader and session.get('user') and 'ControlCenterDashboardReader' in session['user']['roles']) or (not app_settings.require_member_of_control_center_admin and 'Admin' in session['user']['roles'])) %}
+    {% if request.endpoint == 'frontend_control_center.control_center' and ((app_settings.require_member_of_control_center_admin and session.get('user') and 'ControlCenterAdmin' in session['user']['roles']) or (app_settings.require_member_of_control_center_dashboard_reader and session.get('user') and 'ControlCenterDashboardReader' in session['user']['roles']) or (not app_settings.require_member_of_control_center_admin and 'Admin' in session['user']['roles'])) %}
     {% set control_center_menu_expanded = sidebar_menu_state.get('controlCenter', true) %}
     <div class="overflow-auto">
       <div id="control-center-toggle" class="mt-2 mb-1 ps-3 pe-2 text-muted small d-flex align-items-center justify-content-between" style="font-weight: 500; letter-spacing: 0.02em; cursor: pointer; user-select: none;" role="button" tabindex="0" aria-controls="control-center-section" aria-expanded="{{ 'true' if control_center_menu_expanded else 'false' }}" data-sidebar-menu-key="controlCenter" data-sidebar-menu-target="control-center-section" data-sidebar-menu-caret="control-center-caret">

docs/explanation/fixes/CONTROL_CENTER_LEFT_NAV_ENDPOINT_FIX.md

@@ -0,0 +1,40 @@
+# Control Center Left Nav Endpoint Fix
+
+Fixed/Implemented in version: **0.250.052**
+
+## Issue Description
+
+Admins could open Control Center while the left navigation Control Center section stayed hidden, even when the ControlCenterAdmin and ControlCenterDashboardReader app-role settings were disabled.
+
+## Root Cause Analysis
+
+The full sidebar template checked for the unqualified endpoint name `control_center`. The route is registered on the `frontend_control_center` Blueprint, so Flask exposes the endpoint as `frontend_control_center.control_center`. The mismatch prevented the page-local Control Center left-nav section from rendering.
+
+## Technical Details
+
+Files modified:
+
+- `application/single_app/templates/_sidebar_nav.html`
+- `application/single_app/config.py`
+- `functional_tests/test_control_center_left_nav_endpoint.py`
+
+Code changes summary:
+
+- Updated the Control Center sidebar condition to match the blueprint-qualified endpoint.
+- Preserved the existing role fallback where regular `Admin` users get Control Center navigation when ControlCenterAdmin enforcement is disabled.
+- Added a regression test for the endpoint condition and version bump.
+
+## Validation
+
+Validation approach:
+
+- Run `python functional_tests/test_control_center_left_nav_endpoint.py`.
+- Run `git -c core.whitespace=blank-at-eol,blank-at-eof,space-before-tab,cr-at-eol diff --check`.
+
+Before: the Control Center page could load but the left nav section was not rendered because the endpoint check did not match.
+
+After: the sidebar condition matches `frontend_control_center.control_center`, allowing authorized admins to see the Control Center left-nav section.
+
+Related issue: Fixes #1009
+
+Version reference: `application/single_app/config.py` version `0.250.052`.

docs/explanation/release_notes.md

@@ -2,6 +2,15 @@
 
 For feature-focused and fix-focused drill-downs by version, see [Features by Version](/explanation/features/) and [Fixes by Version](/explanation/fixes/).
 
+### **(v0.250.052)**
+
+#### Bug Fixes
+
+*   **Control Center Left Nav Endpoint Fix**
+    *   Fixed an issue where admins could open Control Center while the left navigation Control Center section stayed hidden when ControlCenterAdmin enforcement was disabled.
+    *   Updated the sidebar endpoint check to use the blueprint-qualified `frontend_control_center.control_center` route and added regression coverage for the regular Admin fallback.
+    *   (Ref: microsoft/simplechat#1009, `_sidebar_nav.html`, `test_control_center_left_nav_endpoint.py`)
+
 ### **(v0.250.051)**
 
 #### User Interface Enhancements

functional_tests/test_control_center_left_nav_endpoint.py

@@ -0,0 +1,91 @@
+# test_control_center_left_nav_endpoint.py
+#!/usr/bin/env python3
+"""
+Functional test for Control Center left nav endpoint matching.
+Version: 0.250.052
+Implemented in: 0.250.052
+
+This test ensures the Control Center sidebar section uses the blueprint-qualified
+endpoint so admins see the left nav when ControlCenterAdmin enforcement is disabled.
+"""
+
+from pathlib import Path
+
+
+ROOT = Path(__file__).resolve().parents[1]
+
+
+def read_text(relative_path: str) -> str:
+    """Read a repository file as UTF-8 text."""
+    return (ROOT / relative_path).read_text(encoding="utf-8")
+
+
+def test_control_center_sidebar_uses_blueprint_endpoint() -> bool:
+    """Validate the Control Center sidebar section matches the registered endpoint."""
+    print("Testing Control Center sidebar endpoint match...")
+    sidebar_template = read_text("application/single_app/templates/_sidebar_nav.html")
+
+    expected_endpoint_check = "request.endpoint == 'frontend_control_center.control_center'"
+    stale_endpoint_check = "request.endpoint == 'control_center'"
+
+    if expected_endpoint_check not in sidebar_template:
+        print("Control Center sidebar does not use the blueprint-qualified endpoint.")
+        return False
+
+    if stale_endpoint_check in sidebar_template:
+        print("Control Center sidebar still contains the stale unqualified endpoint check.")
+        return False
+
+    print("Control Center sidebar endpoint match found.")
+    return True
+
+
+def test_control_center_regular_admin_fallback_preserved() -> bool:
+    """Validate regular admins still get Control Center nav when app-role enforcement is disabled."""
+    print("Testing Control Center regular Admin fallback...")
+    sidebar_template = read_text("application/single_app/templates/_sidebar_nav.html")
+
+    required_snippets = [
+        "not app_settings.require_member_of_control_center_admin and 'Admin' in session['user']['roles']",
+        "app_settings.require_member_of_control_center_dashboard_reader",
+        "ControlCenterDashboardReader",
+        "ControlCenterAdmin",
+    ]
+
+    missing_snippets = [snippet for snippet in required_snippets if snippet not in sidebar_template]
+    if missing_snippets:
+        print(f"Missing Control Center role fallback snippets: {missing_snippets}")
+        return False
+
+    print("Control Center regular Admin fallback preserved.")
+    return True
+
+
+def test_config_version_bumped_for_control_center_left_nav_fix() -> bool:
+    """Validate the repository version bump for the Control Center left nav fix."""
+    print("Testing config version bump for Control Center left nav fix...")
+    config_content = read_text("application/single_app/config.py")
+
+    if 'VERSION = "0.250.052"' not in config_content:
+        print("Config version was not bumped to 0.250.052")
+        return False
+
+    print("Config version bump found.")
+    return True
+
+
+if __name__ == "__main__":
+    checks = [
+        test_control_center_sidebar_uses_blueprint_endpoint,
+        test_control_center_regular_admin_fallback_preserved,
+        test_config_version_bumped_for_control_center_left_nav_fix,
+    ]
+
+    results = []
+    for check in checks:
+        print(f"\nRunning {check.__name__}...")
+        results.append(check())
+
+    success = all(results)
+    print(f"\nResults: {sum(results)}/{len(results)} checks passed")
+    raise SystemExit(0 if success else 1)