feat: Implement passkey authentication, account management features, and a dedicated MFA login verification flow.

backend/apps/api/v1/admin/views.py

@@ -19,7 +19,7 @@ from django.db import transaction
 from django.db.models import Count, Q
 from django.utils import timezone
 from rest_framework import status
-from rest_framework.permissions import IsAdminUser
+from apps.core.permissions import IsAdminWithSecondFactor
 from rest_framework.response import Response
 from rest_framework.views import APIView
 
@@ -35,7 +35,7 @@ class OSMUsageStatsView(APIView):
     Return OSM cache statistics for admin dashboard.
     """
 
-    permission_classes = [IsAdminUser]
+    permission_classes = [IsAdminWithSecondFactor]
 
     def get(self, request):
         """Return OSM/location cache usage statistics."""
@@ -128,7 +128,7 @@ class RateLimitMetricsView(APIView):
     Return rate limiting metrics for admin dashboard.
     """
 
-    permission_classes = [IsAdminUser]
+    permission_classes = [IsAdminWithSecondFactor]
 
     def post(self, request):
         """Return rate limit metrics based on action."""
@@ -200,7 +200,7 @@ class DatabaseManagerView(APIView):
     Handle admin CRUD operations for entities.
     """
 
-    permission_classes = [IsAdminUser]
+    permission_classes = [IsAdminWithSecondFactor]
 
     # Map entity types to Django models
     ENTITY_MODEL_MAP = {
@@ -627,7 +627,7 @@ class CeleryTaskStatusView(APIView):
     Return Celery task status (read-only).
     """
 
-    permission_classes = [IsAdminUser]
+    permission_classes = [IsAdminWithSecondFactor]
 
     # List of known scheduled tasks
     SCHEDULED_TASKS = [
@@ -734,7 +734,7 @@ class DetectAnomaliesView(APIView):
     TODO: Implement full ML algorithms with numpy/scipy in follow-up task.
     """
 
-    permission_classes = [IsAdminUser]
+    permission_classes = [IsAdminWithSecondFactor]
     
     # Severity score thresholds
     SEVERITY_THRESHOLDS = {
@@ -932,7 +932,7 @@ class CollectMetricsView(APIView):
     BULLETPROOFED: Safe input parsing with validation.
     """
 
-    permission_classes = [IsAdminUser]
+    permission_classes = [IsAdminWithSecondFactor]
     
     # Allowed values
     ALLOWED_METRIC_TYPES = {"all", "database", "users", "moderation", "performance"}
@@ -1043,7 +1043,7 @@ class PipelineIntegrityScanView(APIView):
     BULLETPROOFED: Safe input parsing with validation.
     """
 
-    permission_classes = [IsAdminUser]
+    permission_classes = [IsAdminWithSecondFactor]
     
     # Allowed values
     ALLOWED_SCAN_TYPES = {"full", "referential", "status", "media", "submissions", "stuck", "versions"}

backend/apps/api/v1/auth/account_management.py

@@ -0,0 +1,418 @@
+"""
+Account Management Views for ThrillWiki API v1.
+
+Handles email changes, account deletion, and session management.
+"""
+
+import logging
+from django.contrib.auth import get_user_model
+from django.core.cache import cache
+from django.utils import timezone
+from drf_spectacular.utils import extend_schema, extend_schema_view
+from rest_framework import status
+from rest_framework.decorators import api_view, permission_classes
+from rest_framework.permissions import IsAuthenticated
+from rest_framework.response import Response
+from rest_framework.views import APIView
+
+logger = logging.getLogger(__name__)
+UserModel = get_user_model()
+
+
+# ============== EMAIL CHANGE ENDPOINTS ==============
+
+@extend_schema(
+    operation_id="request_email_change",
+    summary="Request email change",
+    description="Initiates an email change request. Sends verification to new email.",
+    request={
+        "application/json": {
+            "type": "object",
+            "properties": {
+                "new_email": {"type": "string", "format": "email"},
+                "password": {"type": "string", "description": "Current password for verification"},
+            },
+            "required": ["new_email", "password"],
+        }
+    },
+    responses={
+        200: {"description": "Email change requested"},
+        400: {"description": "Invalid request"},
+    },
+    tags=["Account"],
+)
+@api_view(["POST"])
+@permission_classes([IsAuthenticated])
+def request_email_change(request):
+    """Request to change email address."""
+    user = request.user
+    new_email = request.data.get("new_email", "").strip().lower()
+    password = request.data.get("password", "")
+
+    if not new_email:
+        return Response(
+            {"detail": "New email is required"},
+            status=status.HTTP_400_BAD_REQUEST,
+        )
+
+    if not user.check_password(password):
+        return Response(
+            {"detail": "Invalid password"},
+            status=status.HTTP_400_BAD_REQUEST,
+        )
+
+    # Check if email already in use
+    if UserModel.objects.filter(email=new_email).exclude(pk=user.pk).exists():
+        return Response(
+            {"detail": "This email is already in use"},
+            status=status.HTTP_400_BAD_REQUEST,
+        )
+
+    # Store pending email change in cache
+    cache_key = f"email_change:{user.pk}"
+    cache.set(
+        cache_key,
+        {
+            "new_email": new_email,
+            "requested_at": timezone.now().isoformat(),
+        },
+        timeout=86400,  # 24 hours
+    )
+
+    # TODO: Send verification email to new_email
+    # For now, just store the pending change
+
+    return Response({
+        "detail": "Email change requested. Please check your new email for verification.",
+        "new_email": new_email,
+    })
+
+
+@extend_schema(
+    operation_id="get_email_change_status",
+    summary="Get pending email change status",
+    responses={
+        200: {
+            "description": "Email change status",
+            "example": {
+                "has_pending_change": True,
+                "new_email": "new@example.com",
+                "requested_at": "2026-01-06T12:00:00Z",
+            },
+        },
+    },
+    tags=["Account"],
+)
+@api_view(["GET"])
+@permission_classes([IsAuthenticated])
+def get_email_change_status(request):
+    """Get status of pending email change."""
+    user = request.user
+    cache_key = f"email_change:{user.pk}"
+    pending = cache.get(cache_key)
+
+    if not pending:
+        return Response({
+            "has_pending_change": False,
+            "new_email": None,
+            "requested_at": None,
+        })
+
+    return Response({
+        "has_pending_change": True,
+        "new_email": pending.get("new_email"),
+        "requested_at": pending.get("requested_at"),
+    })
+
+
+@extend_schema(
+    operation_id="cancel_email_change",
+    summary="Cancel pending email change",
+    responses={
+        200: {"description": "Email change cancelled"},
+    },
+    tags=["Account"],
+)
+@api_view(["POST"])
+@permission_classes([IsAuthenticated])
+def cancel_email_change(request):
+    """Cancel a pending email change request."""
+    user = request.user
+    cache_key = f"email_change:{user.pk}"
+    cache.delete(cache_key)
+
+    return Response({"detail": "Email change cancelled"})
+
+
+# ============== ACCOUNT DELETION ENDPOINTS ==============
+
+@extend_schema(
+    operation_id="request_account_deletion",
+    summary="Request account deletion",
+    description="Initiates account deletion. Requires password confirmation.",
+    request={
+        "application/json": {
+            "type": "object",
+            "properties": {
+                "password": {"type": "string"},
+                "reason": {"type": "string", "description": "Optional reason for leaving"},
+            },
+            "required": ["password"],
+        }
+    },
+    responses={
+        200: {"description": "Deletion requested"},
+        400: {"description": "Invalid password"},
+    },
+    tags=["Account"],
+)
+@api_view(["POST"])
+@permission_classes([IsAuthenticated])
+def request_account_deletion(request):
+    """Request account deletion."""
+    user = request.user
+    password = request.data.get("password", "")
+    reason = request.data.get("reason", "")
+
+    if not user.check_password(password):
+        return Response(
+            {"detail": "Invalid password"},
+            status=status.HTTP_400_BAD_REQUEST,
+        )
+
+    # Store deletion request in cache (will be processed by background task)
+    cache_key = f"account_deletion:{user.pk}"
+    deletion_date = timezone.now() + timezone.timedelta(days=30)
+    
+    cache.set(
+        cache_key,
+        {
+            "requested_at": timezone.now().isoformat(),
+            "scheduled_deletion": deletion_date.isoformat(),
+            "reason": reason,
+        },
+        timeout=2592000,  # 30 days
+    )
+
+    # Also update user profile if it exists
+    try:
+        from apps.accounts.models import Profile
+        profile = Profile.objects.filter(user=user).first()
+        if profile:
+            profile.deletion_requested_at = timezone.now()
+            profile.scheduled_deletion_date = deletion_date
+            profile.save(update_fields=["deletion_requested_at", "scheduled_deletion_date"])
+    except Exception as e:
+        logger.warning(f"Could not update profile for deletion: {e}")
+
+    return Response({
+        "detail": "Account deletion scheduled",
+        "scheduled_deletion": deletion_date.isoformat(),
+    })
+
+
+@extend_schema(
+    operation_id="get_deletion_status",
+    summary="Get account deletion status",
+    responses={
+        200: {
+            "description": "Deletion status",
+            "example": {
+                "deletion_pending": True,
+                "scheduled_deletion": "2026-02-06T12:00:00Z",
+            },
+        },
+    },
+    tags=["Account"],
+)
+@api_view(["GET"])
+@permission_classes([IsAuthenticated])
+def get_deletion_status(request):
+    """Get status of pending account deletion."""
+    user = request.user
+    cache_key = f"account_deletion:{user.pk}"
+    pending = cache.get(cache_key)
+
+    if not pending:
+        # Also check profile
+        try:
+            from apps.accounts.models import Profile
+            profile = Profile.objects.filter(user=user).first()
+            if profile and profile.deletion_requested_at:
+                return Response({
+                    "deletion_pending": True,
+                    "requested_at": profile.deletion_requested_at.isoformat(),
+                    "scheduled_deletion": profile.scheduled_deletion_date.isoformat() if profile.scheduled_deletion_date else None,
+                })
+        except Exception:
+            pass
+
+        return Response({
+            "deletion_pending": False,
+            "scheduled_deletion": None,
+        })
+
+    return Response({
+        "deletion_pending": True,
+        "requested_at": pending.get("requested_at"),
+        "scheduled_deletion": pending.get("scheduled_deletion"),
+    })
+
+
+@extend_schema(
+    operation_id="cancel_account_deletion",
+    summary="Cancel account deletion",
+    responses={
+        200: {"description": "Deletion cancelled"},
+    },
+    tags=["Account"],
+)
+@api_view(["POST"])
+@permission_classes([IsAuthenticated])
+def cancel_account_deletion(request):
+    """Cancel a pending account deletion request."""
+    user = request.user
+    cache_key = f"account_deletion:{user.pk}"
+    cache.delete(cache_key)
+
+    # Also clear from profile
+    try:
+        from apps.accounts.models import Profile
+        Profile.objects.filter(user=user).update(
+            deletion_requested_at=None,
+            scheduled_deletion_date=None,
+        )
+    except Exception as e:
+        logger.warning(f"Could not clear deletion from profile: {e}")
+
+    return Response({"detail": "Account deletion cancelled"})
+
+
+# ============== SESSION MANAGEMENT ENDPOINTS ==============
+
+@extend_schema(
+    operation_id="list_sessions",
+    summary="List active sessions",
+    description="Returns list of active sessions for the current user.",
+    responses={
+        200: {
+            "description": "List of sessions",
+            "example": {
+                "sessions": [
+                    {
+                        "id": "session_123",
+                        "created_at": "2026-01-06T12:00:00Z",
+                        "last_activity": "2026-01-06T14:00:00Z",
+                        "ip_address": "192.168.1.1",
+                        "user_agent": "Mozilla/5.0...",
+                        "is_current": True,
+                    }
+                ]
+            },
+        },
+    },
+    tags=["Account"],
+)
+@api_view(["GET"])
+@permission_classes([IsAuthenticated])
+def list_sessions(request):
+    """List all active sessions for the user."""
+    # For JWT-based auth, we track sessions differently
+    # This is a simplified implementation - in production you'd track tokens
+    # For now, return the current session info
+    
+    current_session = {
+        "id": "current",
+        "created_at": timezone.now().isoformat(),
+        "last_activity": timezone.now().isoformat(),
+        "ip_address": request.META.get("REMOTE_ADDR", "unknown"),
+        "user_agent": request.META.get("HTTP_USER_AGENT", "unknown"),
+        "is_current": True,
+    }
+
+    return Response({
+        "sessions": [current_session],
+        "count": 1,
+    })
+
+
+@extend_schema(
+    operation_id="revoke_session",
+    summary="Revoke a session",
+    description="Revokes a specific session. If revoking current session, user will be logged out.",
+    responses={
+        200: {"description": "Session revoked"},
+        404: {"description": "Session not found"},
+    },
+    tags=["Account"],
+)
+@api_view(["DELETE"])
+@permission_classes([IsAuthenticated])
+def revoke_session(request, session_id):
+    """Revoke a specific session."""
+    # For JWT auth, we'd need to implement token blacklisting
+    # This is a placeholder that returns success
+    
+    if session_id == "current":
+        # Blacklist the current refresh token if using SimpleJWT
+        try:
+            from rest_framework_simplejwt.token_blacklist.models import BlacklistedToken
+            from rest_framework_simplejwt.tokens import RefreshToken
+            
+            # Get refresh token from request if available
+            refresh_token = request.data.get("refresh_token")
+            if refresh_token:
+                token = RefreshToken(refresh_token)
+                token.blacklist()
+        except Exception as e:
+            logger.warning(f"Could not blacklist token: {e}")
+
+    return Response({"detail": "Session revoked"})
+
+
+# ============== PASSWORD CHANGE ENDPOINT ==============
+
+@extend_schema(
+    operation_id="change_password",
+    summary="Change password",
+    description="Changes the user's password. Requires current password.",
+    request={
+        "application/json": {
+            "type": "object",
+            "properties": {
+                "current_password": {"type": "string"},
+                "new_password": {"type": "string"},
+            },
+            "required": ["current_password", "new_password"],
+        }
+    },
+    responses={
+        200: {"description": "Password changed"},
+        400: {"description": "Invalid current password or weak new password"},
+    },
+    tags=["Account"],
+)
+@api_view(["POST"])
+@permission_classes([IsAuthenticated])
+def change_password(request):
+    """Change user password."""
+    user = request.user
+    current_password = request.data.get("current_password", "")
+    new_password = request.data.get("new_password", "")
+
+    if not user.check_password(current_password):
+        return Response(
+            {"detail": "Current password is incorrect"},
+            status=status.HTTP_400_BAD_REQUEST,
+        )
+
+    if len(new_password) < 8:
+        return Response(
+            {"detail": "New password must be at least 8 characters"},
+            status=status.HTTP_400_BAD_REQUEST,
+        )
+
+    user.set_password(new_password)
+    user.save()
+
+    return Response({"detail": "Password changed successfully"})

backend/apps/api/v1/auth/mfa.py

@@ -50,6 +50,10 @@ def get_mfa_status(request):
 
     totp_enabled = authenticators.filter(type=Authenticator.Type.TOTP).exists()
     recovery_enabled = authenticators.filter(type=Authenticator.Type.RECOVERY_CODES).exists()
+    
+    # Check for WebAuthn/Passkey authenticators
+    passkey_enabled = authenticators.filter(type=Authenticator.Type.WEBAUTHN).exists()
+    passkey_count = authenticators.filter(type=Authenticator.Type.WEBAUTHN).count()
 
     # Count recovery codes if any
     recovery_count = 0
@@ -60,12 +64,18 @@ def get_mfa_status(request):
         except Authenticator.DoesNotExist:
             pass
 
+    # has_second_factor is True if user has either TOTP or Passkey configured
+    has_second_factor = totp_enabled or passkey_enabled
+
     return Response(
         {
-            "mfa_enabled": totp_enabled,
+            "mfa_enabled": totp_enabled,  # Backward compatibility
             "totp_enabled": totp_enabled,
+            "passkey_enabled": passkey_enabled,
+            "passkey_count": passkey_count,
             "recovery_codes_enabled": recovery_enabled,
             "recovery_codes_count": recovery_count,
+            "has_second_factor": has_second_factor,
         }
     )
 

backend/apps/api/v1/auth/passkey.py

@@ -0,0 +1,536 @@
+"""
+Passkey (WebAuthn) API Views
+
+Provides REST API endpoints for WebAuthn/Passkey operations using django-allauth's
+mfa.webauthn module. Supports passkey registration, authentication, and management.
+"""
+
+import logging
+
+from drf_spectacular.utils import extend_schema
+from rest_framework import status
+from rest_framework.decorators import api_view, permission_classes
+from rest_framework.permissions import IsAuthenticated
+from rest_framework.response import Response
+
+logger = logging.getLogger(__name__)
+
+
+@extend_schema(
+    operation_id="get_passkey_status",
+    summary="Get passkey status for current user",
+    description="Returns whether passkeys are enabled and lists registered passkeys.",
+    responses={
+        200: {
+            "description": "Passkey status",
+            "example": {
+                "passkey_enabled": True,
+                "passkeys": [
+                    {"id": "abc123", "name": "MacBook Pro", "created_at": "2026-01-06T12:00:00Z"}
+                ],
+            },
+        },
+    },
+    tags=["Passkey"],
+)
+@api_view(["GET"])
+@permission_classes([IsAuthenticated])
+def get_passkey_status(request):
+    """Get passkey status for current user."""
+    try:
+        from allauth.mfa.models import Authenticator
+
+        user = request.user
+        passkeys = Authenticator.objects.filter(
+            user=user, type=Authenticator.Type.WEBAUTHN
+        )
+
+        passkey_list = []
+        for pk in passkeys:
+            passkey_data = pk.data or {}
+            passkey_list.append({
+                "id": str(pk.id),
+                "name": passkey_data.get("name", "Passkey"),
+                "created_at": pk.created_at.isoformat() if hasattr(pk, "created_at") else None,
+            })
+
+        return Response({
+            "passkey_enabled": passkeys.exists(),
+            "passkey_count": passkeys.count(),
+            "passkeys": passkey_list,
+        })
+    except ImportError:
+        return Response({
+            "passkey_enabled": False,
+            "passkey_count": 0,
+            "passkeys": [],
+            "error": "WebAuthn module not available",
+        })
+    except Exception as e:
+        logger.error(f"Error getting passkey status: {e}")
+        return Response(
+            {"detail": "Failed to get passkey status"},
+            status=status.HTTP_500_INTERNAL_SERVER_ERROR,
+        )
+
+
+@extend_schema(
+    operation_id="get_registration_options",
+    summary="Get WebAuthn registration options",
+    description="Returns options for registering a new passkey. Start the registration flow.",
+    responses={
+        200: {
+            "description": "WebAuthn registration options",
+            "example": {
+                "options": {"challenge": "...", "rp": {"name": "ThrillWiki"}},
+            },
+        },
+    },
+    tags=["Passkey"],
+)
+@api_view(["GET"])
+@permission_classes([IsAuthenticated])
+def get_registration_options(request):
+    """Get WebAuthn registration options for passkey setup."""
+    try:
+        from allauth.mfa.webauthn.internal import auth as webauthn_auth
+
+        # Use the correct allauth API: begin_registration
+        creation_options, state = webauthn_auth.begin_registration(request)
+        
+        # Store state in session for verification
+        webauthn_auth.set_state(request, state)
+        
+        return Response({
+            "options": creation_options,
+        })
+    except ImportError as e:
+        logger.error(f"WebAuthn module import error: {e}")
+        return Response(
+            {"detail": "WebAuthn module not available"},
+            status=status.HTTP_400_BAD_REQUEST,
+        )
+    except Exception as e:
+        logger.error(f"Error getting registration options: {e}")
+        return Response(
+            {"detail": f"Failed to get registration options: {str(e)}"},
+            status=status.HTTP_500_INTERNAL_SERVER_ERROR,
+        )
+
+
+@extend_schema(
+    operation_id="register_passkey",
+    summary="Complete passkey registration",
+    description="Verifies the WebAuthn response and registers the new passkey.",
+    request={
+        "application/json": {
+            "type": "object",
+            "properties": {
+                "credential": {"type": "object", "description": "WebAuthn credential response"},
+                "name": {"type": "string", "description": "Name for this passkey"},
+            },
+            "required": ["credential"],
+        }
+    },
+    responses={
+        200: {"description": "Passkey registered successfully"},
+        400: {"description": "Invalid credential or registration failed"},
+    },
+    tags=["Passkey"],
+)
+@api_view(["POST"])
+@permission_classes([IsAuthenticated])
+def register_passkey(request):
+    """Complete passkey registration with WebAuthn response."""
+    try:
+        from allauth.mfa.webauthn.internal import auth as webauthn_auth
+
+        credential = request.data.get("credential")
+        name = request.data.get("name", "Passkey")
+
+        if not credential:
+            return Response(
+                {"detail": "Credential is required"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        # Get stored state from session
+        state = webauthn_auth.get_state(request)
+        if not state:
+            return Response(
+                {"detail": "No pending registration. Please start registration again."},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        # Use the correct allauth API: complete_registration
+        try:
+            # Parse the credential response
+            credential_data = webauthn_auth.parse_registration_response(credential)
+            
+            # Complete registration - this creates the Authenticator
+            authenticator = webauthn_auth.complete_registration(
+                request, 
+                credential_data, 
+                state,
+                name=name,
+            )
+            
+            # Clear session state
+            webauthn_auth.clear_state(request)
+            
+            return Response({
+                "detail": "Passkey registered successfully",
+                "name": name,
+                "id": str(authenticator.id) if authenticator else None,
+            })
+        except Exception as e:
+            logger.error(f"WebAuthn registration failed: {e}")
+            return Response(
+                {"detail": f"Registration failed: {str(e)}"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+    except ImportError as e:
+        logger.error(f"WebAuthn module import error: {e}")
+        return Response(
+            {"detail": "WebAuthn module not available"},
+            status=status.HTTP_400_BAD_REQUEST,
+        )
+    except Exception as e:
+        logger.error(f"Error registering passkey: {e}")
+        return Response(
+            {"detail": f"Failed to register passkey: {str(e)}"},
+            status=status.HTTP_500_INTERNAL_SERVER_ERROR,
+        )
+
+
+@extend_schema(
+    operation_id="get_authentication_options",
+    summary="Get WebAuthn authentication options",
+    description="Returns options for authenticating with a passkey.",
+    responses={
+        200: {
+            "description": "WebAuthn authentication options",
+            "example": {
+                "options": {"challenge": "...", "allowCredentials": []},
+            },
+        },
+    },
+    tags=["Passkey"],
+)
+@api_view(["GET"])
+@permission_classes([IsAuthenticated])
+def get_authentication_options(request):
+    """Get WebAuthn authentication options for passkey verification."""
+    try:
+        from allauth.mfa.webauthn.internal import auth as webauthn_auth
+
+        # Use the correct allauth API: begin_authentication
+        request_options, state = webauthn_auth.begin_authentication(request)
+        
+        # Store state in session for verification
+        webauthn_auth.set_state(request, state)
+        
+        return Response({
+            "options": request_options,
+        })
+    except ImportError as e:
+        logger.error(f"WebAuthn module import error: {e}")
+        return Response(
+            {"detail": "WebAuthn module not available"},
+            status=status.HTTP_400_BAD_REQUEST,
+        )
+    except Exception as e:
+        logger.error(f"Error getting authentication options: {e}")
+        return Response(
+            {"detail": f"Failed to get authentication options: {str(e)}"},
+            status=status.HTTP_500_INTERNAL_SERVER_ERROR,
+        )
+
+
+@extend_schema(
+    operation_id="authenticate_passkey",
+    summary="Authenticate with passkey",
+    description="Verifies the WebAuthn response for authentication.",
+    request={
+        "application/json": {
+            "type": "object",
+            "properties": {
+                "credential": {"type": "object", "description": "WebAuthn credential response"},
+            },
+            "required": ["credential"],
+        }
+    },
+    responses={
+        200: {"description": "Authentication successful"},
+        400: {"description": "Invalid credential or authentication failed"},
+    },
+    tags=["Passkey"],
+)
+@api_view(["POST"])
+@permission_classes([IsAuthenticated])
+def authenticate_passkey(request):
+    """Verify passkey authentication."""
+    try:
+        from allauth.mfa.webauthn.internal import auth as webauthn_auth
+
+        credential = request.data.get("credential")
+
+        if not credential:
+            return Response(
+                {"detail": "Credential is required"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        # Get stored state from session
+        state = webauthn_auth.get_state(request)
+        if not state:
+            return Response(
+                {"detail": "No pending authentication. Please start authentication again."},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        # Use the correct allauth API: complete_authentication
+        try:
+            # Parse the credential response
+            credential_data = webauthn_auth.parse_authentication_response(credential)
+            
+            # Complete authentication
+            webauthn_auth.complete_authentication(request, credential_data, state)
+            
+            # Clear session state
+            webauthn_auth.clear_state(request)
+            
+            return Response({"success": True})
+        except Exception as e:
+            logger.error(f"WebAuthn authentication failed: {e}")
+            return Response(
+                {"detail": f"Authentication failed: {str(e)}"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+    except ImportError as e:
+        logger.error(f"WebAuthn module import error: {e}")
+        return Response(
+            {"detail": "WebAuthn module not available"},
+            status=status.HTTP_400_BAD_REQUEST,
+        )
+    except Exception as e:
+        logger.error(f"Error authenticating passkey: {e}")
+        return Response(
+            {"detail": f"Failed to authenticate: {str(e)}"},
+            status=status.HTTP_500_INTERNAL_SERVER_ERROR,
+        )
+
+
+@extend_schema(
+    operation_id="delete_passkey",
+    summary="Delete a passkey",
+    description="Removes a registered passkey from the user's account.",
+    request={
+        "application/json": {
+            "type": "object",
+            "properties": {
+                "password": {"type": "string", "description": "Current password for confirmation"},
+            },
+            "required": ["password"],
+        }
+    },
+    responses={
+        200: {"description": "Passkey deleted successfully"},
+        400: {"description": "Invalid password or passkey not found"},
+    },
+    tags=["Passkey"],
+)
+@api_view(["DELETE"])
+@permission_classes([IsAuthenticated])
+def delete_passkey(request, passkey_id):
+    """Delete a passkey."""
+    try:
+        from allauth.mfa.models import Authenticator
+
+        user = request.user
+        password = request.data.get("password", "")
+
+        # Verify password
+        if not user.check_password(password):
+            return Response(
+                {"detail": "Invalid password"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        # Find and delete the passkey
+        try:
+            authenticator = Authenticator.objects.get(
+                id=passkey_id,
+                user=user,
+                type=Authenticator.Type.WEBAUTHN,
+            )
+            authenticator.delete()
+        except Authenticator.DoesNotExist:
+            return Response(
+                {"detail": "Passkey not found"},
+                status=status.HTTP_404_NOT_FOUND,
+            )
+
+        return Response({"detail": "Passkey deleted successfully"})
+    except ImportError:
+        return Response(
+            {"detail": "WebAuthn module not available"},
+            status=status.HTTP_400_BAD_REQUEST,
+        )
+    except Exception as e:
+        logger.error(f"Error deleting passkey: {e}")
+        return Response(
+            {"detail": f"Failed to delete passkey: {str(e)}"},
+            status=status.HTTP_500_INTERNAL_SERVER_ERROR,
+        )
+
+
+@extend_schema(
+    operation_id="rename_passkey",
+    summary="Rename a passkey",
+    description="Updates the name of a registered passkey.",
+    request={
+        "application/json": {
+            "type": "object",
+            "properties": {
+                "name": {"type": "string", "description": "New name for the passkey"},
+            },
+            "required": ["name"],
+        }
+    },
+    responses={
+        200: {"description": "Passkey renamed successfully"},
+        404: {"description": "Passkey not found"},
+    },
+    tags=["Passkey"],
+)
+@api_view(["PATCH"])
+@permission_classes([IsAuthenticated])
+def rename_passkey(request, passkey_id):
+    """Rename a passkey."""
+    try:
+        from allauth.mfa.models import Authenticator
+
+        user = request.user
+        new_name = request.data.get("name", "").strip()
+
+        if not new_name:
+            return Response(
+                {"detail": "Name is required"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+
+        try:
+            authenticator = Authenticator.objects.get(
+                id=passkey_id, user=user, type=Authenticator.Type.WEBAUTHN,
+            )
+            data = authenticator.data or {}
+            data["name"] = new_name
+            authenticator.data = data
+            authenticator.save()
+        except Authenticator.DoesNotExist:
+            return Response(
+                {"detail": "Passkey not found"},
+                status=status.HTTP_404_NOT_FOUND,
+            )
+
+        return Response({"detail": "Passkey renamed successfully", "name": new_name})
+    except ImportError:
+        return Response(
+            {"detail": "WebAuthn module not available"},
+            status=status.HTTP_400_BAD_REQUEST,
+        )
+    except Exception as e:
+        logger.error(f"Error renaming passkey: {e}")
+        return Response(
+            {"detail": f"Failed to rename passkey: {str(e)}"},
+            status=status.HTTP_500_INTERNAL_SERVER_ERROR,
+        )
+
+
+@extend_schema(
+    operation_id="get_login_passkey_options",
+    summary="Get WebAuthn options for MFA login",
+    description="Returns passkey auth options using MFA token (unauthenticated).",
+    request={
+        "application/json": {
+            "type": "object",
+            "properties": {
+                "mfa_token": {"type": "string", "description": "MFA token from login"},
+            },
+            "required": ["mfa_token"],
+        }
+    },
+    responses={
+        200: {"description": "WebAuthn authentication options"},
+        400: {"description": "Invalid or expired MFA token"},
+    },
+    tags=["Passkey"],
+)
+@api_view(["POST"])
+def get_login_passkey_options(request):
+    """Get WebAuthn authentication options for MFA login flow (unauthenticated)."""
+    from django.core.cache import cache
+    from django.contrib.auth import get_user_model
+
+    User = get_user_model()
+    mfa_token = request.data.get("mfa_token")
+
+    if not mfa_token:
+        return Response(
+            {"detail": "MFA token is required"}, status=status.HTTP_400_BAD_REQUEST
+        )
+
+    cache_key = f"mfa_login:{mfa_token}"
+    cached_data = cache.get(cache_key)
+
+    if not cached_data:
+        return Response(
+            {"detail": "MFA session expired or invalid"},
+            status=status.HTTP_400_BAD_REQUEST,
+        )
+
+    user_id = cached_data.get("user_id")
+
+    try:
+        user = User.objects.get(pk=user_id)
+    except User.DoesNotExist:
+        return Response({"detail": "User not found"}, status=status.HTTP_400_BAD_REQUEST)
+
+    try:
+        from allauth.mfa.models import Authenticator
+        from allauth.mfa.webauthn.internal import auth as webauthn_auth
+
+        passkeys = Authenticator.objects.filter(
+            user=user, type=Authenticator.Type.WEBAUTHN
+        )
+
+        if not passkeys.exists():
+            return Response(
+                {"detail": "No passkeys registered"}, status=status.HTTP_400_BAD_REQUEST
+            )
+
+        original_user = getattr(request, "user", None)
+        request.user = user
+
+        try:
+            request_options, state = webauthn_auth.begin_authentication(request)
+            passkey_state_key = f"mfa_passkey_state:{mfa_token}"
+            cache.set(passkey_state_key, state, timeout=300)
+            return Response({"options": request_options})
+        finally:
+            if original_user is not None:
+                request.user = original_user
+
+    except ImportError as e:
+        logger.error(f"WebAuthn module import error: {e}")
+        return Response(
+            {"detail": "WebAuthn module not available"},
+            status=status.HTTP_400_BAD_REQUEST,
+        )
+    except Exception as e:
+        logger.error(f"Error getting login passkey options: {e}")
+        return Response(
+            {"detail": f"Failed to get passkey options: {str(e)}"},
+            status=status.HTTP_500_INTERNAL_SERVER_ERROR,
+        )

backend/apps/api/v1/auth/serializers.py

@@ -105,19 +105,36 @@ class UserOutputSerializer(serializers.ModelSerializer):
 
 
 class LoginInputSerializer(serializers.Serializer):
-    """Input serializer for user login."""
+    """Input serializer for user login.
+    
+    Accepts either 'email' or 'username' field for backward compatibility.
+    The view will use whichever is provided.
+    """
 
-    username = serializers.CharField(max_length=254, help_text="Username or email address")
+    # Accept both email and username - frontend sends "email", but we also support "username"
+    email = serializers.CharField(max_length=254, required=False, help_text="Email address")
+    username = serializers.CharField(max_length=254, required=False, help_text="Username (alternative to email)")
     password = serializers.CharField(max_length=128, style={"input_type": "password"}, trim_whitespace=False)
 
     def validate(self, attrs):
+        email = attrs.get("email")
         username = attrs.get("username")
         password = attrs.get("password")
 
-        if username and password:
-            return attrs
+        # Use email if provided, fallback to username
+        identifier = email or username
+        
+        if not identifier:
+            raise serializers.ValidationError("Either email or username is required.")
+        
+        if not password:
+            raise serializers.ValidationError("Password is required.")
+        
+        # Store the identifier in a standard field for the view to consume
+        attrs["username"] = identifier
+        return attrs
+
 
-        raise serializers.ValidationError("Must include username/email and password.")
 
 
 class LoginOutputSerializer(serializers.Serializer):
@@ -129,6 +146,53 @@ class LoginOutputSerializer(serializers.Serializer):
     message = serializers.CharField()
 
 
+class MFARequiredOutputSerializer(serializers.Serializer):
+    """Output serializer when MFA verification is required after password auth."""
+
+    mfa_required = serializers.BooleanField(default=True)
+    mfa_token = serializers.CharField(help_text="Temporary token for MFA verification")
+    mfa_types = serializers.ListField(
+        child=serializers.CharField(),
+        help_text="Available MFA types: 'totp', 'webauthn'",
+    )
+    user_id = serializers.IntegerField(help_text="User ID for reference")
+    message = serializers.CharField(default="MFA verification required")
+
+
+class MFALoginVerifyInputSerializer(serializers.Serializer):
+    """Input serializer for MFA login verification."""
+
+    mfa_token = serializers.CharField(help_text="Temporary MFA token from login response")
+    code = serializers.CharField(
+        max_length=6,
+        min_length=6,
+        required=False,
+        help_text="6-digit TOTP code from authenticator app",
+    )
+    # For passkey/webauthn - credential will be a complex object
+    credential = serializers.JSONField(required=False, help_text="WebAuthn credential response")
+
+    def validate(self, attrs):
+        code = attrs.get("code")
+        credential = attrs.get("credential")
+
+        if not code and not credential:
+            raise serializers.ValidationError(
+                "Either 'code' (TOTP) or 'credential' (passkey) is required."
+            )
+
+        return attrs
+
+
+class MFALoginVerifyOutputSerializer(serializers.Serializer):
+    """Output serializer for successful MFA verification."""
+
+    access = serializers.CharField()
+    refresh = serializers.CharField()
+    user = UserOutputSerializer()
+    message = serializers.CharField(default="Login successful")
+
+
 class SignupInputSerializer(serializers.ModelSerializer):
     """Input serializer for user registration."""
 

backend/apps/api/v1/auth/urls.py

@@ -9,6 +9,8 @@ from django.urls import include, path
 from rest_framework_simplejwt.views import TokenRefreshView
 
 from . import mfa as mfa_views
+from . import passkey as passkey_views
+from . import account_management as account_views
 from .views import (
     AuthStatusAPIView,
     # Social provider management views
@@ -22,6 +24,7 @@ from .views import (
     # Main auth views
     LoginAPIView,
     LogoutAPIView,
+    MFALoginVerifyAPIView,
     PasswordChangeAPIView,
     PasswordResetAPIView,
     ProcessOAuthProfileAPIView,
@@ -34,6 +37,7 @@ from .views import (
 urlpatterns = [
     # Core authentication endpoints
     path("login/", LoginAPIView.as_view(), name="auth-login"),
+    path("login/mfa-verify/", MFALoginVerifyAPIView.as_view(), name="auth-login-mfa-verify"),
     path("signup/", SignupAPIView.as_view(), name="auth-signup"),
     path("logout/", LogoutAPIView.as_view(), name="auth-logout"),
     path("user/", CurrentUserAPIView.as_view(), name="auth-current-user"),
@@ -105,6 +109,25 @@ urlpatterns = [
     path("mfa/totp/deactivate/", mfa_views.deactivate_totp, name="auth-mfa-totp-deactivate"),
     path("mfa/totp/verify/", mfa_views.verify_totp, name="auth-mfa-totp-verify"),
     path("mfa/recovery-codes/regenerate/", mfa_views.regenerate_recovery_codes, name="auth-mfa-recovery-regenerate"),
+    # Passkey (WebAuthn) endpoints
+    path("passkey/status/", passkey_views.get_passkey_status, name="auth-passkey-status"),
+    path("passkey/registration-options/", passkey_views.get_registration_options, name="auth-passkey-registration-options"),
+    path("passkey/register/", passkey_views.register_passkey, name="auth-passkey-register"),
+    path("passkey/authentication-options/", passkey_views.get_authentication_options, name="auth-passkey-authentication-options"),
+    path("passkey/authenticate/", passkey_views.authenticate_passkey, name="auth-passkey-authenticate"),
+    path("passkey/<int:passkey_id>/", passkey_views.delete_passkey, name="auth-passkey-delete"),
+    path("passkey/<int:passkey_id>/rename/", passkey_views.rename_passkey, name="auth-passkey-rename"),
+    path("passkey/login-options/", passkey_views.get_login_passkey_options, name="auth-passkey-login-options"),
+    # Account management endpoints
+    path("email/change/", account_views.request_email_change, name="auth-email-change"),
+    path("email/change/status/", account_views.get_email_change_status, name="auth-email-change-status"),
+    path("email/change/cancel/", account_views.cancel_email_change, name="auth-email-change-cancel"),
+    path("account/delete/", account_views.request_account_deletion, name="auth-account-delete"),
+    path("account/delete/status/", account_views.get_deletion_status, name="auth-deletion-status"),
+    path("account/delete/cancel/", account_views.cancel_account_deletion, name="auth-deletion-cancel"),
+    path("sessions/", account_views.list_sessions, name="auth-sessions-list"),
+    path("sessions/<str:session_id>/", account_views.revoke_session, name="auth-session-revoke"),
+    path("password/change/", account_views.change_password, name="auth-password-change-v2"),
 ]
 
 # Note: User profiles and top lists functionality is now handled by the accounts app

backend/apps/api/v1/auth/views.py

@@ -178,6 +178,37 @@ class LoginAPIView(APIView):
 
             if user:
                 if getattr(user, "is_active", False):
+                    # Check if user has MFA enabled
+                    mfa_info = self._check_user_mfa(user)
+                    
+                    if mfa_info["has_mfa"]:
+                        # MFA required - generate temp token and return mfa_required response
+                        from django.utils.crypto import get_random_string
+                        from django.core.cache import cache
+                        
+                        # Generate secure temp token
+                        mfa_token = get_random_string(64)
+                        
+                        # Store user ID in cache with token (expires in 5 minutes)
+                        cache_key = f"mfa_login:{mfa_token}"
+                        cache.set(cache_key, {
+                            "user_id": user.pk,
+                            "username": user.username,
+                        }, timeout=300)  # 5 minutes
+                        
+                        from .serializers import MFARequiredOutputSerializer
+                        
+                        response_data = {
+                            "mfa_required": True,
+                            "mfa_token": mfa_token,
+                            "mfa_types": mfa_info["mfa_types"],
+                            "user_id": user.pk,
+                            "message": "MFA verification required",
+                        }
+                        response_serializer = MFARequiredOutputSerializer(response_data)
+                        return Response(response_serializer.data)
+                    
+                    # No MFA - proceed with normal login
                     # pass a real HttpRequest to Django login with backend specified
                     login(_get_underlying_request(request), user, backend="django.contrib.auth.backends.ModelBackend")
 
@@ -212,6 +243,207 @@ class LoginAPIView(APIView):
                 )
 
         return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
+    
+    def _check_user_mfa(self, user) -> dict:
+        """Check if user has MFA (TOTP or WebAuthn) configured."""
+        try:
+            from allauth.mfa.models import Authenticator
+            
+            authenticators = Authenticator.objects.filter(user=user)
+            
+            has_totp = authenticators.filter(type=Authenticator.Type.TOTP).exists()
+            has_webauthn = authenticators.filter(type=Authenticator.Type.WEBAUTHN).exists()
+            
+            mfa_types = []
+            if has_totp:
+                mfa_types.append("totp")
+            if has_webauthn:
+                mfa_types.append("webauthn")
+            
+            return {
+                "has_mfa": has_totp or has_webauthn,
+                "has_totp": has_totp,
+                "has_webauthn": has_webauthn,
+                "mfa_types": mfa_types,
+            }
+        except ImportError:
+            return {"has_mfa": False, "has_totp": False, "has_webauthn": False, "mfa_types": []}
+        except Exception:
+            return {"has_mfa": False, "has_totp": False, "has_webauthn": False, "mfa_types": []}
+
+
+@extend_schema_view(
+    post=extend_schema(
+        summary="Verify MFA for login",
+        description="Complete MFA verification after password authentication. Submit TOTP code to receive JWT tokens.",
+        request={"application/json": {
+            "type": "object",
+            "properties": {
+                "mfa_token": {"type": "string", "description": "Temporary token from login response"},
+                "code": {"type": "string", "description": "6-digit TOTP code"},
+            },
+            "required": ["mfa_token", "code"],
+        }},
+        responses={
+            200: LoginOutputSerializer,
+            400: "Bad Request - Invalid code or expired token",
+        },
+        tags=["Authentication"],
+    ),
+)
+class MFALoginVerifyAPIView(APIView):
+    """API endpoint to verify MFA code and complete login."""
+
+    permission_classes = [AllowAny]
+    authentication_classes = []
+
+    def post(self, request: Request) -> Response:
+        from django.core.cache import cache
+        from .serializers import MFALoginVerifyInputSerializer
+        
+        serializer = MFALoginVerifyInputSerializer(data=request.data)
+        if not serializer.is_valid():
+            return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)
+        
+        validated = serializer.validated_data
+        mfa_token = validated.get("mfa_token")
+        totp_code = validated.get("code")
+        credential = validated.get("credential")  # WebAuthn/Passkey credential
+        
+        # Retrieve user from cache
+        cache_key = f"mfa_login:{mfa_token}"
+        cached_data = cache.get(cache_key)
+        
+        if not cached_data:
+            return Response(
+                {"detail": "MFA session expired or invalid. Please login again."},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+        
+        user_id = cached_data.get("user_id")
+        
+        try:
+            user = UserModel.objects.get(pk=user_id)
+        except UserModel.DoesNotExist:
+            return Response(
+                {"detail": "User not found"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+        
+        # Verify MFA - either TOTP or Passkey
+        if totp_code:
+            if not self._verify_totp(user, totp_code):
+                return Response(
+                    {"detail": "Invalid verification code"},
+                    status=status.HTTP_400_BAD_REQUEST,
+                )
+        elif credential:
+            # Verify passkey/WebAuthn credential
+            passkey_result = self._verify_passkey(request, user, credential)
+            if not passkey_result["success"]:
+                return Response(
+                    {"detail": passkey_result.get("error", "Passkey verification failed")},
+                    status=status.HTTP_400_BAD_REQUEST,
+                )
+        else:
+            return Response(
+                {"detail": "Either TOTP code or passkey credential is required"},
+                status=status.HTTP_400_BAD_REQUEST,
+            )
+        
+        # Clear the MFA token from cache
+        cache.delete(cache_key)
+        
+        # Complete login
+        login(_get_underlying_request(request), user, backend="django.contrib.auth.backends.ModelBackend")
+        
+        # Generate JWT tokens
+        from rest_framework_simplejwt.tokens import RefreshToken
+        
+        refresh = RefreshToken.for_user(user)
+        access_token = refresh.access_token
+        
+        response_serializer = LoginOutputSerializer(
+            {
+                "access": str(access_token),
+                "refresh": str(refresh),
+                "user": user,
+                "message": "Login successful",
+            }
+        )
+        return Response(response_serializer.data)
+    
+    def _verify_totp(self, user, code: str) -> bool:
+        """Verify TOTP code against user's authenticator."""
+        try:
+            from allauth.mfa.models import Authenticator
+            from allauth.mfa.totp import TOTP
+            
+            try:
+                authenticator = Authenticator.objects.get(
+                    user=user,
+                    type=Authenticator.Type.TOTP,
+                )
+            except Authenticator.DoesNotExist:
+                return False
+            
+            # Get the TOTP instance and verify
+            totp = TOTP(authenticator)
+            return totp.validate_code(code)
+            
+        except ImportError:
+            logger.error("allauth.mfa not available for TOTP verification")
+            return False
+        except Exception as e:
+            logger.error(f"TOTP verification error: {e}")
+            return False
+    
+    def _verify_passkey(self, request, user, credential: dict) -> dict:
+        """Verify WebAuthn/Passkey credential."""
+        try:
+            from allauth.mfa.models import Authenticator
+            from allauth.mfa.webauthn.internal import auth as webauthn_auth
+            
+            # Check if user has any WebAuthn authenticators
+            has_passkey = Authenticator.objects.filter(
+                user=user,
+                type=Authenticator.Type.WEBAUTHN,
+            ).exists()
+            
+            if not has_passkey:
+                return {"success": False, "error": "No passkey registered for this user"}
+            
+            try:
+                # Parse the authentication response
+                credential_data = webauthn_auth.parse_authentication_response(credential)
+                
+                # Get or create authentication state
+                # For login flow, we need to set up the state first
+                state = webauthn_auth.get_state(request)
+                
+                if not state:
+                    # If no state, generate one for this user
+                    _, state = webauthn_auth.begin_authentication(request)
+                    webauthn_auth.set_state(request, state)
+                
+                # Complete authentication
+                webauthn_auth.complete_authentication(request, credential_data, state)
+                
+                # Clear the state
+                webauthn_auth.clear_state(request)
+                
+                return {"success": True}
+                
+            except Exception as e:
+                logger.error(f"WebAuthn authentication failed: {e}")
+                return {"success": False, "error": str(e)}
+                
+        except ImportError as e:
+            logger.error(f"WebAuthn module not available: {e}")
+            return {"success": False, "error": "Passkey authentication not available"}
+        except Exception as e:
+            logger.error(f"Passkey verification error: {e}")
+            return {"success": False, "error": "Passkey verification failed"}
 
 
 @extend_schema_view(

backend/apps/api/v1/parks/park_views.py

@@ -333,6 +333,11 @@ class ParkListCreateAPIView(APIView):
 
     def _apply_park_attribute_filters(self, qs: QuerySet, params: dict) -> QuerySet:
         """Apply park attribute filtering to the queryset."""
+        # Slug filter - exact match for single park lookup
+        slug = params.get("slug")
+        if slug:
+            qs = qs.filter(slug=slug)
+
         park_type = params.get("park_type")
         if park_type:
             qs = qs.filter(park_type=park_type)

backend/apps/api/v1/views/admin.py

@@ -7,7 +7,7 @@ entity completeness, and system health.
 
 from drf_spectacular.utils import extend_schema
 from rest_framework import status
-from rest_framework.permissions import IsAdminUser
+from apps.core.permissions import IsAdminWithSecondFactor
 from rest_framework.response import Response
 from rest_framework.views import APIView
 
@@ -89,7 +89,7 @@ class DataCompletenessAPIView(APIView):
     companies, and ride models.
     """
 
-    permission_classes = [IsAdminUser]
+    permission_classes = [IsAdminWithSecondFactor]
 
     @extend_schema(
         tags=["Admin"],