Fix addressing issue #2005 including tests

gns3server/api/routes/controller/__init__.py

@@ -171,11 +171,13 @@ router.include_router(
 router.include_router(
     _llm_router,
     prefix="/access",
+    dependencies=[Depends(get_current_active_user)],
     tags=["LLM Model Configurations"]
 )
 
 router.include_router(
     _chat_router,
     prefix="/projects/{project_id}/chat",
+    dependencies=[Depends(get_current_active_user)],
     tags=["Chat"]
 )

gns3server/api/routes/controller/dependencies/authentication.py

@@ -47,14 +47,20 @@ async def get_user_from_token(
             headers={"WWW-Authenticate": "Bearer"},
         )
 
-    username = auth_service.get_username_from_token(token)
-    user = await user_repo.get_user_by_username(username)
+    token_data = auth_service.get_token_data(token)
+    user = await user_repo.get_user_by_username(token_data.username)
     if user is None:
         raise HTTPException(
             status_code=status.HTTP_401_UNAUTHORIZED,
             detail="Could not validate credentials",
             headers={"WWW-Authenticate": "Bearer"},
         )
+    if token_data.token_version != user.token_version:
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="Token has been revoked",
+            headers={"WWW-Authenticate": "Bearer"},
+        )
     return user
 
 
@@ -87,13 +93,18 @@ async def get_current_active_user_from_websocket(
     await websocket.accept()
 
     try:
-        username = auth_service.get_username_from_token(token)
-        user = await user_repo.get_user_by_username(username)
+        token_data = auth_service.get_token_data(token)
+        user = await user_repo.get_user_by_username(token_data.username)
 
         if user is None:
             raise HTTPException(
                 status_code=status.HTTP_401_UNAUTHORIZED,
-                detail=f"Could not validate credentials for '{username}'"
+                detail=f"Could not validate credentials for '{token_data.username}'"
+            )
+        if token_data.token_version != user.token_version:
+            raise HTTPException(
+                status_code=status.HTTP_401_UNAUTHORIZED,
+                detail=f"Token has been revoked for '{token_data.username}'"
             )
 
         # Super admin is always authorized

gns3server/api/routes/controller/users.py

@@ -65,7 +65,10 @@ async def login(
             headers={"WWW-Authenticate": "Bearer"},
         )
 
-    token = schemas.Token(access_token=auth_service.create_access_token(user.username), token_type="bearer")
+    token = schemas.Token(
+        access_token=auth_service.create_access_token(user.username, token_version=user.token_version),
+        token_type="bearer"
+    )
     return token
 
 
@@ -87,10 +90,25 @@ async def authenticate(
             headers={"WWW-Authenticate": "Bearer"},
         )
 
-    token = schemas.Token(access_token=auth_service.create_access_token(user.username), token_type="bearer")
+    token = schemas.Token(
+        access_token=auth_service.create_access_token(user.username, token_version=user.token_version),
+        token_type="bearer"
+    )
     return token
 
 
+@router.post("/logout", status_code=status.HTTP_204_NO_CONTENT)
+async def logout(
+        current_user: schemas.User = Depends(get_current_active_user),
+        users_repo: UsersRepository = Depends(get_repository(UsersRepository)),
+) -> None:
+    """
+    Logout the current user by revoking all existing tokens.
+    """
+
+    await users_repo.logout_user(current_user.user_id)
+
+
 @router.get("/me", response_model=schemas.User)
 async def get_logged_in_user(current_user: schemas.User = Depends(get_current_active_user)) -> schemas.User:
     """

gns3server/db/models/users.py

@@ -15,7 +15,7 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-from sqlalchemy import Table, Boolean, Column, String, DateTime, ForeignKey, event
+from sqlalchemy import Table, Boolean, Column, Integer, String, DateTime, ForeignKey, event
 from sqlalchemy.orm import relationship
 
 from .base import Base, BaseTable, generate_uuid, GUID
@@ -45,6 +45,7 @@ class User(BaseTable):
     full_name = Column(String)
     hashed_password = Column(String)
     last_login = Column(DateTime)
+    token_version = Column(Integer, default=0, nullable=False, server_default="0")
     is_active = Column(Boolean, default=True)
     is_superadmin = Column(Boolean, default=False)
     groups = relationship("UserGroup", secondary=user_group_map, back_populates="users")

gns3server/db/repositories/users.py

@@ -113,6 +113,18 @@ class UsersRepository(BaseRepository):
             await self._db_session.refresh(user_db)  # force refresh of updated_at value
         return user_db
 
+    async def logout_user(self, user_id: UUID) -> None:
+        """
+        Increment token_version to invalidate all existing tokens for the user.
+        """
+
+        query = update(models.User).\
+            where(models.User.user_id == user_id).\
+            values(token_version=models.User.token_version + 1)
+
+        await self._db_session.execute(query)
+        await self._db_session.commit()
+
     async def delete_user(self, user_id: UUID) -> bool:
         """
         Delete a user.

gns3server/db_migrations/versions/20260405_add_token_version_to_users.py

@@ -0,0 +1,28 @@
+"""add token_version to users
+
+Revision ID: 20260405_add_token_version_to_users
+Revises: 20260303_create_llm_model_configs
+Create Date: 2026-04-05
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy import inspect
+
+# revision identifiers, used by Alembic.
+revision = '20260405_add_token_version_to_users'
+down_revision = 'ec4b7b198555'
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    conn = op.get_bind()
+    inspector = inspect(conn)
+    columns = [col['name'] for col in inspector.get_columns('users')]
+    if 'token_version' not in columns:
+        op.add_column('users', sa.Column('token_version', sa.Integer(), nullable=False, server_default='0'))
+
+
+def downgrade() -> None:
+    op.drop_column('users', 'token_version')

gns3server/schemas/controller/tokens.py

@@ -27,3 +27,4 @@ class Token(BaseModel):
 class TokenData(BaseModel):
 
     username: Optional[str] = None
+    token_version: int = 0

gns3server/services/authentication.py

@@ -45,12 +45,12 @@ class AuthService:
 
         return bcrypt.checkpw(password=password.encode('utf-8'), hashed_password=hashed_password.encode('utf-8'))
 
-    def create_access_token(self, username, secret_key: str = None, expires_in: int = 0) -> str:
+    def create_access_token(self, username, token_version: int = 0, secret_key: str = None, expires_in: int = 0) -> str:
 
         if not expires_in:
             expires_in = Config.instance().settings.Controller.jwt_access_token_expire_minutes
         expire = datetime.now(timezone.utc) + timedelta(minutes=expires_in)
-        to_encode = {"sub": username, "exp": expire}
+        to_encode = {"sub": username, "exp": expire, "ver": token_version}
         if secret_key is None:
             secret_key = Config.instance().settings.Controller.jwt_secret_key
         if secret_key is None:
@@ -61,7 +61,7 @@ class AuthService:
         encoded_jwt = jwt.encode({"alg": algorithm}, to_encode, key)
         return encoded_jwt
 
-    def get_username_from_token(self, token: str, secret_key: str = None) -> Optional[str]:
+    def get_token_data(self, token: str, secret_key: str = None) -> TokenData:
 
         credentials_exception = HTTPException(
             status_code=status.HTTP_401_UNAUTHORIZED,
@@ -80,7 +80,11 @@ class AuthService:
             username: str = payload.claims.get("sub")
             if username is None:
                 raise credentials_exception
-            token_data = TokenData(username=username)
+            token_version: int = payload.claims.get("ver", 0)
+            token_data = TokenData(username=username, token_version=token_version)
         except (JoseError, ValidationError, ValueError):
             raise credentials_exception
-        return token_data.username
+        return token_data
+
+    def get_username_from_token(self, token: str, secret_key: str = None) -> Optional[str]:
+        return self.get_token_data(token, secret_key).username

tests/api/routes/controller/test_users.py

@@ -247,6 +247,7 @@ class TestUserLogin:
         key = OctKey.import_key(jwt_secret)
         payload = jwt.decode(token, key, algorithms=["HS256"])
         assert "sub" in payload.claims
+        assert "ver" in payload.claims
         username = payload.claims.get("sub")
         assert username == test_user.username
 
@@ -373,6 +374,117 @@ class TestUserMe:
         assert response.status_code == status_code
 
 
+class TestLogout:
+
+    async def test_logout_returns_no_content(
+            self,
+            app: FastAPI,
+            unauthorized_client: AsyncClient,
+            test_user: User,
+    ) -> None:
+
+        # login to get a fresh token that includes token_version
+        credentials = {"username": test_user.username, "password": "user1_password"}
+        response = await unauthorized_client.post(app.url_path_for("authenticate"), json=credentials)
+        assert response.status_code == status.HTTP_200_OK
+        token = response.json()["access_token"]
+
+        response = await unauthorized_client.post(
+            app.url_path_for("logout"),
+            headers={"Authorization": f"Bearer {token}"}
+        )
+        assert response.status_code == status.HTTP_204_NO_CONTENT
+
+    async def test_token_is_rejected_after_logout(
+            self,
+            app: FastAPI,
+            unauthorized_client: AsyncClient,
+            test_user: User,
+            db_session: AsyncSession,
+    ) -> None:
+
+        # login and get a token
+        credentials = {"username": test_user.username, "password": "user1_password"}
+        response = await unauthorized_client.post(app.url_path_for("authenticate"), json=credentials)
+        assert response.status_code == status.HTTP_200_OK
+        token = response.json()["access_token"]
+
+        # logout — increments token_version
+        await unauthorized_client.post(
+            app.url_path_for("logout"),
+            headers={"Authorization": f"Bearer {token}"}
+        )
+
+        # old token must now be rejected
+        response = await unauthorized_client.get(
+            app.url_path_for("get_logged_in_user"),
+            headers={"Authorization": f"Bearer {token}"}
+        )
+        assert response.status_code == status.HTTP_401_UNAUTHORIZED
+        assert response.json()["message"] == "Token has been revoked"
+
+    async def test_new_token_works_after_logout_and_relogin(
+            self,
+            app: FastAPI,
+            unauthorized_client: AsyncClient,
+            test_user: User,
+    ) -> None:
+
+        credentials = {"username": test_user.username, "password": "user1_password"}
+
+        # login, then logout
+        response = await unauthorized_client.post(app.url_path_for("authenticate"), json=credentials)
+        old_token = response.json()["access_token"]
+        await unauthorized_client.post(
+            app.url_path_for("logout"),
+            headers={"Authorization": f"Bearer {old_token}"}
+        )
+
+        # login again to get a fresh token
+        response = await unauthorized_client.post(app.url_path_for("authenticate"), json=credentials)
+        assert response.status_code == status.HTTP_200_OK
+        new_token = response.json()["access_token"]
+
+        # new token must work
+        response = await unauthorized_client.get(
+            app.url_path_for("get_logged_in_user"),
+            headers={"Authorization": f"Bearer {new_token}"}
+        )
+        assert response.status_code == status.HTTP_200_OK
+        assert response.json()["username"] == test_user.username
+
+    async def test_stale_version_token_is_rejected(
+            self,
+            app: FastAPI,
+            unauthorized_client: AsyncClient,
+            test_user: User,
+            db_session: AsyncSession,
+    ) -> None:
+
+        # craft a token with ver=0 while the user's token_version is already higher
+        user_repo = UsersRepository(db_session)
+        user_in_db = await user_repo.get_user_by_username(test_user.username)
+
+        # force token_version ahead so any ver=0 token is stale
+        await user_repo.logout_user(user_in_db.user_id)
+
+        stale_token = auth_service.create_access_token(test_user.username, token_version=0)
+        response = await unauthorized_client.get(
+            app.url_path_for("get_logged_in_user"),
+            headers={"Authorization": f"Bearer {stale_token}"}
+        )
+        assert response.status_code == status.HTTP_401_UNAUTHORIZED
+
+    async def test_logout_without_token_returns_unauthorized(
+            self,
+            app: FastAPI,
+            unauthorized_client: AsyncClient,
+    ) -> None:
+
+        response = await unauthorized_client.post(app.url_path_for("logout"))
+        assert response.status_code == status.HTTP_401_UNAUTHORIZED
+
+
 class TestSuperAdmin:
 
     async def test_super_admin_exists(