Base API and tables for RBAC support.

gns3server/api/routes/controller/__init__.py

@@ -30,6 +30,8 @@ from . import symbols
 from . import templates
 from . import users
 from . import groups
+from . import roles
+from . import permissions
 
 from .dependencies.authentication import get_current_active_user
 
@@ -46,31 +48,36 @@ router.include_router(
 )
 
 router.include_router(
-    appliances.router,
+    roles.router,
     dependencies=[Depends(get_current_active_user)],
-    prefix="/appliances",
+    prefix="/roles",
-    tags=["Appliances"]
+    tags=["Roles"]
 )
 
 router.include_router(
-    computes.router,
+    roles.router,
     dependencies=[Depends(get_current_active_user)],
-    prefix="/computes",
+    prefix="/permissions",
-    tags=["Computes"]
+    tags=["Permissions"]
 )
 
 router.include_router(
-    drawings.router,
+    templates.router,
     dependencies=[Depends(get_current_active_user)],
-    prefix="/projects/{project_id}/drawings",
+    tags=["Templates"]
-    tags=["Drawings"])
+)
 
 router.include_router(
-    gns3vm.router,
+    projects.router,
-    deprecated=True,
     dependencies=[Depends(get_current_active_user)],
-    prefix="/gns3vm",
+    prefix="/projects",
-    tags=["GNS3 VM"]
+    tags=["Projects"])
+
+router.include_router(
+    nodes.router,
+    dependencies=[Depends(get_current_active_user)],
+    prefix="/projects/{project_id}/nodes",
+    tags=["Nodes"]
 )
 
 router.include_router(
@@ -81,10 +88,28 @@ router.include_router(
 )
 
 router.include_router(
-    nodes.router,
+    drawings.router,
     dependencies=[Depends(get_current_active_user)],
-    prefix="/projects/{project_id}/nodes",
+    prefix="/projects/{project_id}/drawings",
-    tags=["Nodes"]
+    tags=["Drawings"])
+
+router.include_router(
+    symbols.router,
+    dependencies=[Depends(get_current_active_user)],
+    prefix="/symbols", tags=["Symbols"]
+)
+
+router.include_router(
+    snapshots.router,
+    dependencies=[Depends(get_current_active_user)],
+    prefix="/projects/{project_id}/snapshots",
+    tags=["Snapshots"])
+
+router.include_router(
+    computes.router,
+    dependencies=[Depends(get_current_active_user)],
+    prefix="/computes",
+    tags=["Computes"]
 )
 
 router.include_router(
@@ -94,25 +119,16 @@ router.include_router(
     tags=["Notifications"])
 
 router.include_router(
-    projects.router,
+    appliances.router,
     dependencies=[Depends(get_current_active_user)],
-    prefix="/projects",
+    prefix="/appliances",
-    tags=["Projects"])
+    tags=["Appliances"]
-
-router.include_router(
-    snapshots.router,
-    dependencies=[Depends(get_current_active_user)],
-    prefix="/projects/{project_id}/snapshots",
-    tags=["Snapshots"])
-
-router.include_router(
-    symbols.router,
-    dependencies=[Depends(get_current_active_user)],
-    prefix="/symbols", tags=["Symbols"]
 )
 
 router.include_router(
-    templates.router,
+    gns3vm.router,
+    deprecated=True,
     dependencies=[Depends(get_current_active_user)],
-    tags=["Templates"]
+    prefix="/gns3vm",
+    tags=["GNS3 VM"]
 )

gns3server/api/routes/controller/groups.py

@@ -31,6 +31,7 @@ from gns3server.controller.controller_error import (
 )
 
 from gns3server.db.repositories.users import UsersRepository
+from gns3server.db.repositories.rbac import RbacRepository
 from .dependencies.database import get_repository
 
 import logging
@@ -182,3 +183,61 @@ async def remove_member_from_group(
     user_group = await users_repo.remove_member_from_user_group(user_group_id, user)
     if not user_group:
         raise ControllerNotFoundError(f"User group '{user_group_id}' not found")
+
+
+@router.get("/{user_group_id}/roles", response_model=List[schemas.Role])
+async def get_user_group_roles(
+        user_group_id: UUID,
+        users_repo: UsersRepository = Depends(get_repository(UsersRepository))
+) -> List[schemas.Role]:
+    """
+    Get all user group roles.
+    """
+
+    return await users_repo.get_user_group_roles(user_group_id)
+
+
+@router.put(
+    "/{user_group_id}/roles/{role_id}",
+    status_code=status.HTTP_204_NO_CONTENT
+)
+async def add_role_to_group(
+        user_group_id: UUID,
+        role_id: UUID,
+        users_repo: UsersRepository = Depends(get_repository(UsersRepository)),
+        rbac_repo: RbacRepository = Depends(get_repository(RbacRepository))
+) -> None:
+    """
+    Add role to an user group.
+    """
+
+    role = await rbac_repo.get_role(role_id)
+    if not role:
+        raise ControllerNotFoundError(f"Role '{role_id}' not found")
+
+    user_group = await users_repo.add_role_to_user_group(user_group_id, role)
+    if not user_group:
+        raise ControllerNotFoundError(f"User group '{user_group_id}' not found")
+
+
+@router.delete(
+    "/{user_group_id}/roles/{role_id}",
+    status_code=status.HTTP_204_NO_CONTENT
+)
+async def remove_role_from_group(
+    user_group_id: UUID,
+    role_id: UUID,
+    users_repo: UsersRepository = Depends(get_repository(UsersRepository)),
+    rbac_repo: RbacRepository = Depends(get_repository(RbacRepository))
+) -> None:
+    """
+    Remove role from an user group.
+    """
+
+    role = await rbac_repo.get_role(role_id)
+    if not role:
+        raise ControllerNotFoundError(f"Role '{role_id}' not found")
+
+    user_group = await users_repo.remove_role_from_user_group(user_group_id, role)
+    if not user_group:
+        raise ControllerNotFoundError(f"User group '{user_group_id}' not found")

gns3server/api/routes/controller/permissions.py

@@ -0,0 +1,122 @@
+#!/usr/bin/env python
+#
+# Copyright (C) 2021 GNS3 Technologies Inc.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+"""
+API routes for permissions.
+"""
+
+from fastapi import APIRouter, Depends, status
+from uuid import UUID
+from typing import List
+
+from gns3server import schemas
+from gns3server.controller.controller_error import (
+    ControllerBadRequestError,
+    ControllerNotFoundError,
+    ControllerForbiddenError,
+)
+
+from gns3server.db.repositories.rbac import RbacRepository
+from .dependencies.database import get_repository
+
+import logging
+
+log = logging.getLogger(__name__)
+
+router = APIRouter()
+
+
+@router.get("", response_model=List[schemas.Permission])
+async def get_permissions(
+        rbac_repo: RbacRepository = Depends(get_repository(RbacRepository))
+) -> List[schemas.Permission]:
+    """
+    Get all permissions.
+    """
+
+    return await rbac_repo.get_permissions()
+
+
+@router.post("", response_model=schemas.Permission, status_code=status.HTTP_201_CREATED)
+async def create_permission(
+        permission_create: schemas.PermissionCreate,
+        rbac_repo: RbacRepository = Depends(get_repository(RbacRepository))
+) -> schemas.Permission:
+    """
+    Create a new permission.
+    """
+
+    # if await rbac_repo.get_role_by_path(role_create.name):
+    #     raise ControllerBadRequestError(f"Role '{role_create.name}' already exists")
+
+    return await rbac_repo.create_permission(permission_create)
+
+
+@router.get("/{permission_id}", response_model=schemas.Permission)
+async def get_permission(
+        permission_id: UUID,
+        rbac_repo: RbacRepository = Depends(get_repository(RbacRepository)),
+) -> schemas.Permission:
+    """
+    Get a permission.
+    """
+
+    permission = await rbac_repo.get_permission(permission_id)
+    if not permission:
+        raise ControllerNotFoundError(f"Permission '{permission_id}' not found")
+    return permission
+
+
+@router.put("/{permission_id}", response_model=schemas.Permission)
+async def update_permission(
+        permission_id: UUID,
+        permission_update: schemas.PermissionUpdate,
+        rbac_repo: RbacRepository = Depends(get_repository(RbacRepository))
+) -> schemas.Permission:
+    """
+    Update a permission.
+    """
+
+    permission = await rbac_repo.get_permission(permission_id)
+    if not permission:
+        raise ControllerNotFoundError(f"Permission '{permission_id}' not found")
+
+    #if not user_group.is_updatable:
+    #    raise ControllerForbiddenError(f"User group '{user_group_id}' cannot be updated")
+
+    return await rbac_repo.update_permission(permission_id, permission_update)
+
+
+@router.delete("/{permission_id}", status_code=status.HTTP_204_NO_CONTENT)
+async def delete_permission(
+    permission_id: UUID,
+    rbac_repo: RbacRepository = Depends(get_repository(RbacRepository)),
+) -> None:
+    """
+    Delete a permission.
+    """
+
+    permission = await rbac_repo.get_permission(permission_id)
+    if not permission:
+        raise ControllerNotFoundError(f"Permission '{permission_id}' not found")
+
+    #if not user_group.is_updatable:
+    #    raise ControllerForbiddenError(f"User group '{user_group_id}' cannot be deleted")
+
+    success = await rbac_repo.delete_permission(permission_id)
+    if not success:
+        raise ControllerNotFoundError(f"Permission '{permission_id}' could not be deleted")

gns3server/api/routes/controller/roles.py

@@ -0,0 +1,178 @@
+#!/usr/bin/env python
+#
+# Copyright (C) 2021 GNS3 Technologies Inc.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+"""
+API routes for roles.
+"""
+
+from fastapi import APIRouter, Depends, status
+from uuid import UUID
+from typing import List
+
+from gns3server import schemas
+from gns3server.controller.controller_error import (
+    ControllerBadRequestError,
+    ControllerNotFoundError,
+    ControllerForbiddenError,
+)
+
+from gns3server.db.repositories.rbac import RbacRepository
+from .dependencies.database import get_repository
+
+import logging
+
+log = logging.getLogger(__name__)
+
+router = APIRouter()
+
+
+@router.get("", response_model=List[schemas.Role])
+async def get_roles(
+        rbac_repo: RbacRepository = Depends(get_repository(RbacRepository))
+) -> List[schemas.Role]:
+    """
+    Get all roles.
+    """
+
+    return await rbac_repo.get_roles()
+
+
+@router.post("", response_model=schemas.Role, status_code=status.HTTP_201_CREATED)
+async def create_role(
+        role_create: schemas.RoleCreate,
+        rbac_repo: RbacRepository = Depends(get_repository(RbacRepository))
+) -> schemas.Role:
+    """
+    Create a new role.
+    """
+
+    if await rbac_repo.get_role_by_name(role_create.name):
+        raise ControllerBadRequestError(f"Role '{role_create.name}' already exists")
+
+    return await rbac_repo.create_role(role_create)
+
+
+@router.get("/{role_id}", response_model=schemas.Role)
+async def get_role(
+        role_id: UUID,
+        rbac_repo: RbacRepository = Depends(get_repository(RbacRepository)),
+) -> schemas.Role:
+    """
+    Get a role.
+    """
+
+    role = await rbac_repo.get_role(role_id)
+    if not role:
+        raise ControllerNotFoundError(f"Role '{role_id}' not found")
+    return role
+
+
+@router.put("/{role_id}", response_model=schemas.Role)
+async def update_role(
+        role_id: UUID,
+        role_update: schemas.RoleUpdate,
+        rbac_repo: RbacRepository = Depends(get_repository(RbacRepository))
+) -> schemas.Role:
+    """
+    Update a role.
+    """
+
+    role = await rbac_repo.get_role(role_id)
+    if not role:
+        raise ControllerNotFoundError(f"Role '{role_id}' not found")
+
+    #if not user_group.is_updatable:
+    #    raise ControllerForbiddenError(f"User group '{user_group_id}' cannot be updated")
+
+    return await rbac_repo.update_role(role_id, role_update)
+
+
+@router.delete("/{role_id}", status_code=status.HTTP_204_NO_CONTENT)
+async def delete_role(
+    role_id: UUID,
+    rbac_repo: RbacRepository = Depends(get_repository(RbacRepository)),
+) -> None:
+    """
+    Delete a role.
+    """
+
+    role = await rbac_repo.get_role(role_id)
+    if not role:
+        raise ControllerNotFoundError(f"Role '{role_id}' not found")
+
+    #if not user_group.is_updatable:
+    #    raise ControllerForbiddenError(f"User group '{user_group_id}' cannot be deleted")
+
+    success = await rbac_repo.delete_role(role_id)
+    if not success:
+        raise ControllerNotFoundError(f"Role '{role_id}' could not be deleted")
+
+
+@router.get("/{role_id}/permissions", response_model=List[schemas.Permission])
+async def get_role_permissions(
+        role_id: UUID,
+        rbac_repo: RbacRepository = Depends(get_repository(RbacRepository))
+) -> List[schemas.Permission]:
+    """
+    Get all role permissions.
+    """
+
+    return await rbac_repo.get_role_permissions(role_id)
+
+
+@router.put(
+    "/{role_id}/permissions/{permission_id}",
+    status_code=status.HTTP_204_NO_CONTENT
+)
+async def add_permission_to_role(
+        role_id: UUID,
+        permission_id: UUID,
+        rbac_repo: RbacRepository = Depends(get_repository(RbacRepository))
+) -> None:
+    """
+    Add a permission to a role.
+    """
+
+    permission = await rbac_repo.get_permission(permission_id)
+    if not permission:
+        raise ControllerNotFoundError(f"Permission '{permission_id}' not found")
+
+    role = await rbac_repo.add_permission_to_role(role_id, permission)
+    if not role:
+        raise ControllerNotFoundError(f"Role '{role_id}' not found")
+
+
+@router.delete(
+    "/{role_id}/permissions/{permission_id}",
+    status_code=status.HTTP_204_NO_CONTENT
+)
+async def remove_permission_from_role(
+    role_id: UUID,
+    permission_id: UUID,
+    rbac_repo: RbacRepository = Depends(get_repository(RbacRepository)),
+) -> None:
+    """
+    Remove member from an user group.
+    """
+
+    permission = await rbac_repo.get_permission(permission_id)
+    if not permission:
+        raise ControllerNotFoundError(f"Permission '{permission_id}' not found")
+
+    role = await rbac_repo.remove_permission_from_role(role_id, permission)
+    if not role:
+        raise ControllerNotFoundError(f"Role '{role_id}' not found")

gns3server/db/models/__init__.py

@@ -17,6 +17,8 @@
 
 from .base import Base
 from .users import User, UserGroup
+from .roles import Role
+from .permissions import Permission
 from .computes import Compute
 from .templates import (
     Template,

gns3server/db/models/base.py

@@ -19,7 +19,7 @@ import uuid
 
 from fastapi.encoders import jsonable_encoder
 from sqlalchemy import Column, DateTime, func, inspect
-from sqlalchemy.types import TypeDecorator, CHAR
+from sqlalchemy.types import TypeDecorator, CHAR, VARCHAR
 from sqlalchemy.dialects.postgresql import UUID
 from sqlalchemy.ext.declarative import as_declarative
 
@@ -72,6 +72,37 @@ class GUID(TypeDecorator):
             return value
 
 
+class ListException(Exception):
+    pass
+
+
+class ListType(TypeDecorator):
+    """
+    Save/restore a Python list to/from a database column.
+    """
+
+    impl = VARCHAR
+    cache_ok = True
+
+    def __init__(self, separator=',', *args, **kwargs):
+
+        self._separator = separator
+        super().__init__(*args, **kwargs)
+
+    def process_bind_param(self, value, dialect):
+        if value is not None:
+            if any(self._separator in str(item) for item in value):
+                raise ListException(f"List values cannot contain '{self._separator}'"
+                                    f"Please use a different separator.")
+            return self._separator.join(map(str, value))
+
+    def process_result_value(self, value, dialect):
+        if value is None:
+            return []
+        else:
+            return list(map(str, value.split(self._separator)))
+
+
 class BaseTable(Base):
 
     __abstract__ = True
@@ -79,6 +110,8 @@ class BaseTable(Base):
     created_at = Column(DateTime, server_default=func.current_timestamp())
     updated_at = Column(DateTime, server_default=func.current_timestamp(), onupdate=func.current_timestamp())
 
+    __mapper_args__ = {"eager_defaults": True}
+
 
 def generate_uuid():
     return str(uuid.uuid4())

gns3server/db/models/permissions.py

@@ -0,0 +1,45 @@
+#!/usr/bin/env python
+#
+# Copyright (C) 2021 GNS3 Technologies Inc.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# 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, Column, String, ForeignKey, Boolean
+from sqlalchemy.orm import relationship
+
+from .base import Base, BaseTable, generate_uuid, GUID, ListType
+
+import logging
+
+log = logging.getLogger(__name__)
+
+
+permission_role_link = Table(
+    "permissions_roles_link",
+    Base.metadata,
+    Column("permission_id", GUID, ForeignKey("permissions.permission_id", ondelete="CASCADE")),
+    Column("role_id", GUID, ForeignKey("roles.role_id", ondelete="CASCADE"))
+
+)
+
+
+class Permission(BaseTable):
+
+    __tablename__ = "permissions"
+
+    permission_id = Column(GUID, primary_key=True, default=generate_uuid)
+    methods = Column(ListType)
+    path = Column(String)
+    action = Column(String)
+    roles = relationship("Role", secondary=permission_role_link, back_populates="permissions")

gns3server/db/models/roles.py

@@ -0,0 +1,59 @@
+#!/usr/bin/env python
+#
+# Copyright (C) 2021 GNS3 Technologies Inc.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# 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, Column, String, Boolean, ForeignKey, event
+from sqlalchemy.orm import relationship
+
+from .base import Base, BaseTable, generate_uuid, GUID
+from .permissions import permission_role_link
+
+import logging
+
+log = logging.getLogger(__name__)
+
+role_group_link = Table(
+    "roles_groups_link",
+    Base.metadata,
+    Column("role_id", GUID, ForeignKey("roles.role_id", ondelete="CASCADE")),
+    Column("user_group_id", GUID, ForeignKey("user_groups.user_group_id", ondelete="CASCADE"))
+)
+
+
+class Role(BaseTable):
+
+    __tablename__ = "roles"
+
+    role_id = Column(GUID, primary_key=True, default=generate_uuid)
+    name = Column(String)
+    description = Column(String)
+    is_updatable = Column(Boolean, default=True)
+    permissions = relationship("Permission", secondary=permission_role_link, back_populates="roles")
+    groups = relationship("UserGroup", secondary=role_group_link, back_populates="roles")
+
+
+@event.listens_for(Role.__table__, 'after_create')
+def create_default_roles(target, connection, **kw):
+
+    default_roles = [
+        {"name": "Administrator", "description": "Administrator role", "is_updatable": False},
+        {"name": "User", "description": "User role", "is_updatable": False},
+    ]
+
+    stmt = target.insert().values(default_roles)
+    connection.execute(stmt)
+    connection.commit()
+    log.info("The default roles have been created in the database")

gns3server/db/models/users.py

@@ -19,6 +19,8 @@ from sqlalchemy import Table, Boolean, Column, String, ForeignKey, event
 from sqlalchemy.orm import relationship
 
 from .base import Base, BaseTable, generate_uuid, GUID
+from .roles import role_group_link
+
 from gns3server.config import Config
 from gns3server.services import auth_service
 
@@ -26,11 +28,11 @@ import logging
 
 log = logging.getLogger(__name__)
 
-users_group_members = Table(
+user_group_link = Table(
-    "users_group_members",
+    "users_groups_link",
     Base.metadata,
     Column("user_id", GUID, ForeignKey("users.user_id", ondelete="CASCADE")),
-    Column("user_group_id", GUID, ForeignKey("users_group.user_group_id", ondelete="CASCADE"))
+    Column("user_group_id", GUID, ForeignKey("user_groups.user_group_id", ondelete="CASCADE"))
 )
 
 
@@ -45,7 +47,9 @@ class User(BaseTable):
     hashed_password = Column(String)
     is_active = Column(Boolean, default=True)
     is_superadmin = Column(Boolean, default=False)
-    groups = relationship("UserGroup", secondary=users_group_members, back_populates="users")
+    groups = relationship("UserGroup", secondary=user_group_link, back_populates="users")
+    permission_id = Column(GUID, ForeignKey('permissions.permission_id', ondelete="CASCADE"))
+    permissions = relationship("Permission")
 
 
 @event.listens_for(User.__table__, 'after_create')
@@ -68,12 +72,13 @@ def create_default_super_admin(target, connection, **kw):
 
 class UserGroup(BaseTable):
 
-    __tablename__ = "users_group"
+    __tablename__ = "user_groups"
 
     user_group_id = Column(GUID, primary_key=True, default=generate_uuid)
     name = Column(String, unique=True, index=True)
     is_updatable = Column(Boolean, default=True)
-    users = relationship("User", secondary=users_group_members, back_populates="groups")
+    users = relationship("User", secondary=user_group_link, back_populates="groups")
+    roles = relationship("Role", secondary=role_group_link, back_populates="groups")
 
 
 @event.listens_for(UserGroup.__table__, 'after_create')
@@ -91,11 +96,11 @@ def create_default_user_groups(target, connection, **kw):
     log.info("The default user groups have been created in the database")
 
 
-@event.listens_for(users_group_members, 'after_create')
+@event.listens_for(user_group_link, 'after_create')
 def add_admin_to_group(target, connection, **kw):
 
-    users_group_table = UserGroup.__table__
+    user_groups_table = UserGroup.__table__
-    stmt = users_group_table.select().where(users_group_table.c.name == "Administrators")
+    stmt = user_groups_table.select().where(user_groups_table.c.name == "Administrators")
     result = connection.execute(stmt)
     user_group_id = result.first().user_group_id
 

gns3server/db/repositories/rbac.py

@@ -0,0 +1,196 @@
+#!/usr/bin/env python
+#
+# Copyright (C) 2020 GNS3 Technologies Inc.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# 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 uuid import UUID
+from typing import Optional, List, Union
+from sqlalchemy import select, update, delete
+from sqlalchemy.ext.asyncio import AsyncSession
+from sqlalchemy.orm import selectinload
+
+from .base import BaseRepository
+
+import gns3server.db.models as models
+from gns3server import schemas
+
+import logging
+
+log = logging.getLogger(__name__)
+
+
+class RbacRepository(BaseRepository):
+
+    def __init__(self, db_session: AsyncSession) -> None:
+
+        super().__init__(db_session)
+
+    async def get_role(self, role_id: UUID) -> Optional[models.Role]:
+
+        query = select(models.Role).\
+            options(selectinload(models.Role.permissions)).\
+            where(models.Role.role_id == role_id)
+        result = await self._db_session.execute(query)
+        return result.scalars().first()
+
+    async def get_role_by_name(self, name: str) -> Optional[models.Role]:
+
+        query = select(models.Role).\
+            options(selectinload(models.Role.permissions)).\
+            where(models.Role.name == name)
+        #query = select(models.Role).where(models.Role.name == name)
+        result = await self._db_session.execute(query)
+        return result.scalars().first()
+
+    async def get_roles(self) -> List[models.Role]:
+
+        query = select(models.Role).options(selectinload(models.Role.permissions))
+        result = await self._db_session.execute(query)
+        return result.scalars().all()
+
+    async def create_role(self, role_create: schemas.RoleCreate) -> models.Role:
+
+        db_role = models.Role(
+            name=role_create.name,
+            description=role_create.description,
+        )
+        self._db_session.add(db_role)
+        await self._db_session.commit()
+        #await self._db_session.refresh(db_role)
+        return await self.get_role(db_role.role_id)
+
+    async def update_role(
+            self,
+            role_id: UUID,
+            role_update: schemas.RoleUpdate
+    ) -> Optional[models.Role]:
+
+        update_values = role_update.dict(exclude_unset=True)
+        query = update(models.Role).where(models.Role.role_id == role_id).values(update_values)
+
+        await self._db_session.execute(query)
+        await self._db_session.commit()
+        return await self.get_role(role_id)
+
+    async def delete_role(self, role_id: UUID) -> bool:
+
+        query = delete(models.Role).where(models.Role.role_id == role_id)
+        result = await self._db_session.execute(query)
+        await self._db_session.commit()
+        return result.rowcount > 0
+
+    async def add_permission_to_role(
+            self,
+            role_id: UUID,
+            permission: models.Permission
+    ) -> Union[None, models.Role]:
+
+        query = select(models.Role).\
+            options(selectinload(models.Role.permissions)).\
+            where(models.Role.role_id == role_id)
+        result = await self._db_session.execute(query)
+        role_db = result.scalars().first()
+        if not role_db:
+            return None
+
+        role_db.permissions.append(permission)
+        await self._db_session.commit()
+        await self._db_session.refresh(role_db)
+        return role_db
+
+    async def remove_permission_from_role(
+            self,
+            role_id: UUID,
+            permission: models.Permission
+    ) -> Union[None, models.Role]:
+
+        query = select(models.Role).\
+            options(selectinload(models.Role.permissions)).\
+            where(models.Role.role_id == role_id)
+        result = await self._db_session.execute(query)
+        role_db = result.scalars().first()
+        if not role_db:
+            return None
+
+        role_db.permissions.remove(permission)
+        await self._db_session.commit()
+        await self._db_session.refresh(role_db)
+        return role_db
+
+    async def get_role_permissions(self, role_id: UUID) -> List[models.Permission]:
+
+        query = select(models.Permission).\
+            join(models.Permission.roles).\
+            filter(models.Role.role_id == role_id)
+
+        result = await self._db_session.execute(query)
+        return result.scalars().all()
+
+    async def get_permission(self, permission_id: UUID) -> Optional[models.Permission]:
+
+        query = select(models.Permission).where(models.Permission.permission_id == permission_id)
+        result = await self._db_session.execute(query)
+        return result.scalars().first()
+
+    async def get_permission_by_path(self, path: str) -> Optional[models.Permission]:
+
+        query = select(models.Permission).where(models.Permission.path == path)
+        result = await self._db_session.execute(query)
+        return result.scalars().first()
+
+    async def get_permissions(self) -> List[models.Permission]:
+
+        query = select(models.Permission)
+        result = await self._db_session.execute(query)
+        return result.scalars().all()
+
+    async def create_permission(self, permission_create: schemas.PermissionCreate) -> models.Permission:
+
+        create_values = permission_create.dict(exclude_unset=True)
+        # action = create_values.pop("action", "deny")
+        # is_allowed = False
+        # if action == "allow":
+        #     is_allowed = True
+
+        db_permission = models.Permission(
+            methods=permission_create.methods,
+            path=permission_create.path,
+            action=permission_create.action,
+        )
+        self._db_session.add(db_permission)
+
+        await self._db_session.commit()
+        await self._db_session.refresh(db_permission)
+        return db_permission
+
+    async def update_permission(
+            self,
+            permission_id: UUID,
+            permission_update: schemas.PermissionUpdate
+    ) -> Optional[models.Permission]:
+
+        update_values = permission_update.dict(exclude_unset=True)
+        query = update(models.Permission).where(models.Permission.permission_id == permission_id).values(update_values)
+
+        await self._db_session.execute(query)
+        await self._db_session.commit()
+        return await self.get_permission(permission_id)
+
+    async def delete_permission(self, permission_id: UUID) -> bool:
+
+        query = delete(models.Permission).where(models.Permission.permission_id == permission_id)
+        result = await self._db_session.execute(query)
+        await self._db_session.commit()
+        return result.rowcount > 0

gns3server/db/repositories/users.py

@@ -210,3 +210,51 @@ class UsersRepository(BaseRepository):
 
         result = await self._db_session.execute(query)
         return result.scalars().all()
+
+    async def add_role_to_user_group(
+            self,
+            user_group_id: UUID,
+            role: models.Role
+    ) -> Union[None, models.UserGroup]:
+
+        query = select(models.UserGroup).\
+            options(selectinload(models.UserGroup.roles)).\
+            where(models.UserGroup.user_group_id == user_group_id)
+        result = await self._db_session.execute(query)
+        user_group_db = result.scalars().first()
+        if not user_group_db:
+            return None
+
+        user_group_db.roles.append(role)
+        await self._db_session.commit()
+        await self._db_session.refresh(user_group_db)
+        return user_group_db
+
+    async def remove_role_from_user_group(
+            self,
+            user_group_id: UUID,
+            role: models.Role
+    ) -> Union[None, models.UserGroup]:
+
+        query = select(models.UserGroup).\
+            options(selectinload(models.UserGroup.roles)).\
+            where(models.UserGroup.user_group_id == user_group_id)
+        result = await self._db_session.execute(query)
+        user_group_db = result.scalars().first()
+        if not user_group_db:
+            return None
+
+        user_group_db.roles.remove(role)
+        await self._db_session.commit()
+        await self._db_session.refresh(user_group_db)
+        return user_group_db
+
+    async def get_user_group_roles(self, user_group_id: UUID) -> List[models.Role]:
+
+        query = select(models.Role). \
+            options(selectinload(models.Role.permissions)). \
+            join(models.UserGroup.roles). \
+            filter(models.UserGroup.user_group_id == user_group_id)
+
+        result = await self._db_session.execute(query)
+        return result.scalars().all()

gns3server/schemas/__init__.py

@@ -28,6 +28,7 @@ from .controller.gns3vm import GNS3VM
 from .controller.nodes import NodeCreate, NodeUpdate, NodeDuplicate, NodeCapture, Node
 from .controller.projects import ProjectCreate, ProjectUpdate, ProjectDuplicate, Project, ProjectFile
 from .controller.users import UserCreate, UserUpdate, User, Credentials, UserGroupCreate, UserGroupUpdate, UserGroup
+from .controller.rbac import RoleCreate, RoleUpdate, Role, PermissionCreate, PermissionUpdate, Permission
 from .controller.tokens import Token
 from .controller.snapshots import SnapshotCreate, Snapshot
 from .controller.iou_license import IOULicense

gns3server/schemas/controller/rbac.py

@@ -0,0 +1,120 @@
+#
+# Copyright (C) 2020 GNS3 Technologies Inc.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# 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 typing import Optional, List
+from pydantic import BaseModel, validator
+from uuid import UUID
+from enum import Enum
+
+from .base import DateTimeModelMixin
+
+
+class HTTPMethods(str, Enum):
+    """
+    HTTP method type.
+    """
+
+    get = "GET"
+    head = "HEAD"
+    post = "POST"
+    patch = "PATCH"
+    put = "PUT"
+    delete = "DELETE"
+
+
+class PermissionAction(str, Enum):
+    """
+    Action to perform when permission is matched.
+    """
+
+    allow = "ALLOW"
+    deny = "DENY"
+
+
+class PermissionBase(BaseModel):
+    """
+    Common permission properties.
+    """
+
+    methods: List[HTTPMethods]
+    path: str
+    action: PermissionAction
+    description: Optional[str] = None
+
+    class Config:
+        use_enum_values = True
+
+    @validator("action", pre=True)
+    def action_uppercase(cls, v):
+        return v.upper()
+
+
+class PermissionCreate(PermissionBase):
+    """
+    Properties to create a permission.
+    """
+
+    pass
+
+
+class PermissionUpdate(PermissionBase):
+    """
+    Properties to update a role.
+    """
+
+    pass
+
+
+class Permission(DateTimeModelMixin, PermissionBase):
+
+    permission_id: UUID
+
+    class Config:
+        orm_mode = True
+
+
+class RoleBase(BaseModel):
+    """
+    Common role properties.
+    """
+
+    name: Optional[str] = None
+    description: Optional[str] = None
+
+
+class RoleCreate(RoleBase):
+    """
+    Properties to create a role.
+    """
+
+    name: str
+
+
+class RoleUpdate(RoleBase):
+    """
+    Properties to update a role.
+    """
+
+    pass
+
+
+class Role(DateTimeModelMixin, RoleBase):
+
+    role_id: UUID
+    permissions: List[Permission]
+
+    class Config:
+        orm_mode = True

tests/api/routes/controller/test_groups.py

@@ -22,7 +22,10 @@ from httpx import AsyncClient
 
 from sqlalchemy.ext.asyncio import AsyncSession
 from gns3server.db.repositories.users import UsersRepository
+from gns3server.db.repositories.rbac import RbacRepository
 from gns3server.schemas.controller.users import User
+from gns3server.schemas.controller.rbac import Role
+from gns3server import schemas
 
 pytestmark = pytest.mark.asyncio
 
@@ -103,6 +106,9 @@ class TestGroupRoutes:
         response = await client.delete(app.url_path_for("delete_user_group", user_group_id=group_in_db.user_group_id))
         assert response.status_code == status.HTTP_403_FORBIDDEN
 
+
+class TestGroupMembersRoutes:
+
     async def test_add_member_to_group(
             self,
             app: FastAPI,
@@ -163,3 +169,81 @@ class TestGroupRoutes:
         assert response.status_code == status.HTTP_204_NO_CONTENT
         members = await user_repo.get_user_group_members(group_in_db.user_group_id)
         assert len(members) == 0
+
+
+@pytest.fixture
+async def test_role(db_session: AsyncSession) -> Role:
+
+    new_role = schemas.RoleCreate(
+        name="TestRole",
+        description="This is my test role"
+    )
+    rbac_repo = RbacRepository(db_session)
+    existing_role = await rbac_repo.get_role_by_name(new_role.name)
+    if existing_role:
+        return existing_role
+    return await rbac_repo.create_role(new_role)
+
+
+class TestGroupRolesRoutes:
+
+    async def test_add_role_to_group(
+            self,
+            app: FastAPI,
+            client: AsyncClient,
+            test_role: Role,
+            db_session: AsyncSession
+    ) -> None:
+
+        user_repo = UsersRepository(db_session)
+        group_in_db = await user_repo.get_user_group_by_name("Users")
+        response = await client.put(
+            app.url_path_for(
+                "add_role_to_group",
+                user_group_id=group_in_db.user_group_id,
+                role_id=str(test_role.role_id)
+            )
+        )
+        assert response.status_code == status.HTTP_204_NO_CONTENT
+        roles = await user_repo.get_user_group_roles(group_in_db.user_group_id)
+        assert len(roles) == 1
+        assert roles[0].name == test_role.name
+
+    async def test_get_user_group_roles(
+            self,
+            app: FastAPI,
+            client: AsyncClient,
+            db_session: AsyncSession
+    ) -> None:
+
+        user_repo = UsersRepository(db_session)
+        group_in_db = await user_repo.get_user_group_by_name("Users")
+        response = await client.get(
+            app.url_path_for(
+                "get_user_group_roles",
+                user_group_id=group_in_db.user_group_id)
+        )
+        assert response.status_code == status.HTTP_200_OK
+        assert len(response.json()) == 1
+
+    async def test_remove_role_from_group(
+            self,
+            app: FastAPI,
+            client: AsyncClient,
+            test_role: Role,
+            db_session: AsyncSession
+    ) -> None:
+
+        user_repo = UsersRepository(db_session)
+        group_in_db = await user_repo.get_user_group_by_name("Users")
+
+        response = await client.delete(
+            app.url_path_for(
+                "remove_role_from_group",
+                user_group_id=group_in_db.user_group_id,
+                role_id=test_role.role_id
+            ),
+        )
+        assert response.status_code == status.HTTP_204_NO_CONTENT
+        roles = await user_repo.get_user_group_roles(group_in_db.user_group_id)
+        assert len(roles) == 0

tests/api/routes/controller/test_roles.py

@@ -0,0 +1,186 @@
+#!/usr/bin/env python
+#
+# Copyright (C) 2021 GNS3 Technologies Inc.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import pytest
+
+from fastapi import FastAPI, status
+from httpx import AsyncClient
+
+from sqlalchemy.ext.asyncio import AsyncSession
+from gns3server.db.repositories.rbac import RbacRepository
+from gns3server.schemas.controller.rbac import Permission, HTTPMethods, PermissionAction
+from gns3server import schemas
+
+pytestmark = pytest.mark.asyncio
+
+
+class TestRolesRoutes:
+
+    async def test_create_role(self, app: FastAPI, client: AsyncClient) -> None:
+
+        new_role = {"name": "role1"}
+        response = await client.post(app.url_path_for("create_role"), json=new_role)
+        assert response.status_code == status.HTTP_201_CREATED
+
+    async def test_get_role(self, app: FastAPI, client: AsyncClient, db_session: AsyncSession) -> None:
+
+        rbac_repo = RbacRepository(db_session)
+        role_in_db = await rbac_repo.get_role_by_name("role1")
+        response = await client.get(app.url_path_for("get_role", role_id=role_in_db.role_id))
+        assert response.status_code == status.HTTP_200_OK
+        assert response.json()["role_id"] == str(role_in_db.role_id)
+
+    async def test_list_roles(self, app: FastAPI, client: AsyncClient) -> None:
+
+        response = await client.get(app.url_path_for("get_roles"))
+        assert response.status_code == status.HTTP_200_OK
+        assert len(response.json()) == 3  # 2 default roles + role1
+
+    async def test_update_role(self, app: FastAPI, client: AsyncClient, db_session: AsyncSession) -> None:
+
+        rbac_repo = RbacRepository(db_session)
+        role_in_db = await rbac_repo.get_role_by_name("role1")
+
+        update_role = {"name": "role42"}
+        response = await client.put(
+            app.url_path_for("update_role", role_id=role_in_db.role_id),
+            json=update_role
+        )
+        assert response.status_code == status.HTTP_200_OK
+        updated_role_in_db = await rbac_repo.get_role(role_in_db.role_id)
+        assert updated_role_in_db.name == "role42"
+
+    # async def test_cannot_update_admin_group(
+    #         self,
+    #         app: FastAPI,
+    #         client: AsyncClient,
+    #         db_session: AsyncSession
+    # ) -> None:
+    #
+    #     user_repo = UsersRepository(db_session)
+    #     group_in_db = await user_repo.get_user_group_by_name("Administrators")
+    #     update_group = {"name": "Hackers"}
+    #     response = await client.put(
+    #         app.url_path_for("update_user_group", user_group_id=group_in_db.user_group_id),
+    #         json=update_group
+    #     )
+    #     assert response.status_code == status.HTTP_403_FORBIDDEN
+
+    async def test_delete_role(
+            self,
+            app: FastAPI,
+            client: AsyncClient,
+            db_session: AsyncSession
+    ) -> None:
+
+        rbac_repo = RbacRepository(db_session)
+        role_in_db = await rbac_repo.get_role_by_name("role42")
+        response = await client.delete(app.url_path_for("delete_role", role_id=role_in_db.role_id))
+        assert response.status_code == status.HTTP_204_NO_CONTENT
+
+    # async def test_cannot_delete_admin_group(
+    #         self,
+    #         app: FastAPI,
+    #         client: AsyncClient,
+    #         db_session: AsyncSession
+    # ) -> None:
+    #
+    #     user_repo = UsersRepository(db_session)
+    #     group_in_db = await user_repo.get_user_group_by_name("Administrators")
+    #     response = await client.delete(app.url_path_for("delete_user_group", user_group_id=group_in_db.user_group_id))
+    #     assert response.status_code == status.HTTP_403_FORBIDDEN
+
+
+@pytest.fixture
+async def test_permission(db_session: AsyncSession) -> Permission:
+
+    new_permission = schemas.PermissionCreate(
+        methods=[HTTPMethods.get, HTTPMethods.post],
+        path="/projects",
+        action=PermissionAction.allow
+    )
+    rbac_repo = RbacRepository(db_session)
+    existing_permission = await rbac_repo.get_permission_by_path("/projects")
+    if existing_permission:
+        return existing_permission
+    return await rbac_repo.create_permission(new_permission)
+
+
+class TestRolesPermissionsRoutes:
+
+    async def test_add_permission_to_role(
+            self,
+            app: FastAPI,
+            client: AsyncClient,
+            test_permission: Permission,
+            db_session: AsyncSession
+    ) -> None:
+
+        rbac_repo = RbacRepository(db_session)
+        role_in_db = await rbac_repo.get_role_by_name("User")
+
+        response = await client.put(
+            app.url_path_for(
+                "add_permission_to_role",
+                role_id=role_in_db.role_id,
+                permission_id=str(test_permission.permission_id)
+            )
+        )
+        assert response.status_code == status.HTTP_204_NO_CONTENT
+        permissions = await rbac_repo.get_role_permissions(role_in_db.role_id)
+        assert len(permissions) == 1
+        assert permissions[0].path == test_permission.path
+
+    async def test_get_role_permissions(
+            self,
+            app: FastAPI,
+            client: AsyncClient,
+            db_session: AsyncSession
+    ) -> None:
+
+        rbac_repo = RbacRepository(db_session)
+        role_in_db = await rbac_repo.get_role_by_name("User")
+
+        response = await client.get(
+            app.url_path_for(
+                "get_role_permissions",
+                role_id=role_in_db.role_id)
+        )
+        assert response.status_code == status.HTTP_200_OK
+        assert len(response.json()) == 1
+
+    async def test_remove_role_from_group(
+            self,
+            app: FastAPI,
+            client: AsyncClient,
+            test_permission: Permission,
+            db_session: AsyncSession
+    ) -> None:
+
+        rbac_repo = RbacRepository(db_session)
+        role_in_db = await rbac_repo.get_role_by_name("User")
+
+        response = await client.delete(
+            app.url_path_for(
+                "remove_permission_from_role",
+                role_id=role_in_db.role_id,
+                permission_id=str(test_permission.permission_id)
+            ),
+        )
+        assert response.status_code == status.HTTP_204_NO_CONTENT
+        permissions = await rbac_repo.get_role_permissions(role_in_db.role_id)
+        assert len(permissions) == 0