mirror of
https://github.com/GNS3/gns3-server.git
synced 2024-12-23 06:32:26 +00:00
443 lines
18 KiB
Python
443 lines
18 KiB
Python
# -*- coding: utf-8 -*-
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#
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# Copyright (C) 2020 GNS3 Technologies Inc.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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"""
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API endpoints for nodes.
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"""
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import asyncio
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from fastapi import APIRouter, Request, Response, status
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from fastapi.encoders import jsonable_encoder
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from fastapi.routing import APIRoute
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from typing import List, Callable
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from uuid import UUID
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from gns3server.controller import Controller
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from gns3server.utils import force_unix_path
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from gns3server.controller.controller_error import ControllerForbiddenError
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from gns3server.endpoints.schemas.common import ErrorMessage
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from gns3server.endpoints import schemas
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import aiohttp
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node_locks = {}
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class NodeConcurrency(APIRoute):
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"""
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To avoid strange effect we prevent concurrency
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between the same instance of the node
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(excepting when streaming a PCAP file and WebSocket consoles).
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"""
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def get_route_handler(self) -> Callable:
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original_route_handler = super().get_route_handler()
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async def custom_route_handler(request: Request) -> Response:
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node_id = request.path_params.get("node_id")
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project_id = request.path_params.get("project_id")
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if node_id and "pcap" not in request.url.path and not request.url.path.endswith("console/ws"):
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lock_key = "{}:{}".format(project_id, node_id)
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node_locks.setdefault(lock_key, {"lock": asyncio.Lock(), "concurrency": 0})
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node_locks[lock_key]["concurrency"] += 1
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async with node_locks[lock_key]["lock"]:
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response = await original_route_handler(request)
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node_locks[lock_key]["concurrency"] -= 1
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if node_locks[lock_key]["concurrency"] <= 0:
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del node_locks[lock_key]
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else:
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response = await original_route_handler(request)
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return response
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return custom_route_handler
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router = APIRouter(route_class=NodeConcurrency)
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# # dependency to retrieve a node
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# async def get_node(project_id: UUID, node_id: UUID):
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#
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# project = await Controller.instance().get_loaded_project(str(project_id))
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# node = project.get_node(str(node_id))
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# return node
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@router.post("/projects/{project_id}/nodes",
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summary="Create a new node",
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status_code=status.HTTP_201_CREATED,
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response_model=schemas.Node,
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responses={404: {"model": ErrorMessage, "description": "Could not find project"},
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409: {"model": ErrorMessage, "description": "Could not create node"}})
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async def create_node(project_id: UUID, node_data: schemas.Node):
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controller = Controller.instance()
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compute = controller.get_compute(str(node_data.compute_id))
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project = await controller.get_loaded_project(str(project_id))
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node_data = jsonable_encoder(node_data, exclude_unset=True)
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node = await project.add_node(compute,
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node_data.pop("name"),
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node_data.pop("node_id", None),
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**node_data)
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return node.__json__()
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@router.get("/projects/{project_id}/nodes",
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summary="List of all nodes",
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response_model=List[schemas.Node],
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response_description="List of nodes",
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response_model_exclude_unset=True)
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async def list_nodes(project_id: UUID):
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project = await Controller.instance().get_loaded_project(str(project_id))
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return [v.__json__() for v in project.nodes.values()]
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@router.post("/projects/{project_id}/nodes/start",
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summary="Start all nodes",
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status_code=status.HTTP_204_NO_CONTENT,
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responses={404: {"model": ErrorMessage, "description": "Could not find project"}})
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async def start_all_nodes(project_id: UUID):
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"""
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Start all nodes belonging to the project
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"""
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project = await Controller.instance().get_loaded_project(str(project_id))
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await project.start_all()
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@router.post("/projects/{project_id}/nodes/stop",
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summary="Stop all nodes",
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status_code=status.HTTP_204_NO_CONTENT,
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responses={404: {"model": ErrorMessage, "description": "Could not find project"}})
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async def stop_all_nodes(project_id: UUID):
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"""
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Stop all nodes belonging to the project
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"""
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project = await Controller.instance().get_loaded_project(str(project_id))
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await project.stop_all()
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@router.post("/projects/{project_id}/nodes/suspend",
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summary="Stop all nodes",
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status_code=status.HTTP_204_NO_CONTENT,
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responses={404: {"model": ErrorMessage, "description": "Could not find project"}})
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async def suspend_all_nodes(project_id: UUID):
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"""
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Suspend all nodes belonging to the project
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"""
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project = await Controller.instance().get_loaded_project(str(project_id))
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await project.suspend_all()
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@router.post("/projects/{project_id}/nodes/reload",
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summary="Reload all nodes",
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status_code=status.HTTP_204_NO_CONTENT,
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responses={404: {"model": ErrorMessage, "description": "Could not find project"}})
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async def reload_all_nodes(project_id: UUID):
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"""
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Reload all nodes belonging to the project
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"""
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project = await Controller.instance().get_loaded_project(str(project_id))
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await project.stop_all()
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await project.start_all()
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@router.get("/projects/{project_id}/nodes/{node_id}",
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summary="Get a node",
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response_model=schemas.Node,
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responses={404: {"model": ErrorMessage, "description": "Could not find project or node"}})
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def get_node(project_id: UUID, node_id: UUID):
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project = Controller.instance().get_project(str(project_id))
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node = project.get_node(str(node_id))
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return node.__json__()
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@router.put("/projects/{project_id}/nodes/{node_id}",
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summary="Update a node",
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response_model=schemas.Node,
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response_description="Updated node",
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response_model_exclude_unset=True,
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responses={404: {"model": ErrorMessage, "description": "Project or node not found"}})
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async def update_node(project_id: UUID, node_id: UUID, node_data: schemas.NodeUpdate):
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project = await Controller.instance().get_loaded_project(str(project_id))
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node = project.get_node(str(node_id))
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node_data = jsonable_encoder(node_data, exclude_unset=True)
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# Ignore these because we only use them when creating a node
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node_data.pop("node_id", None)
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node_data.pop("node_type", None)
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node_data.pop("compute_id", None)
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await node.update(**node_data)
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return node.__json__()
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@router.delete("/projects/{project_id}/nodes/{node_id}",
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summary="Delete a node",
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status_code=status.HTTP_204_NO_CONTENT,
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responses={404: {"model": ErrorMessage, "description": "Could not find project or node"},
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409: {"model": ErrorMessage, "description": "Cannot delete node"}})
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async def delete_node(project_id: UUID, node_id: UUID):
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project = await Controller.instance().get_loaded_project(str(project_id))
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await project.delete_node(str(node_id))
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@router.post("/projects/{project_id}/nodes/{node_id}/duplicate",
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summary="Duplicate a node",
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response_model=schemas.Node,
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status_code=status.HTTP_201_CREATED,
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responses={404: {"model": ErrorMessage, "description": "Could not find project or node"}})
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async def duplicate_node(project_id: UUID, node_id: UUID, duplicate_data: schemas.NodeDuplicate):
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project = await Controller.instance().get_loaded_project(str(project_id))
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node = project.get_node(str(node_id))
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new_node = await project.duplicate_node(node,
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duplicate_data.x,
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duplicate_data.y,
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duplicate_data.z)
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return new_node.__json__()
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@router.post("/projects/{project_id}/nodes/{node_id}/start",
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summary="Start a node",
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status_code=status.HTTP_204_NO_CONTENT,
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responses={404: {"model": ErrorMessage, "description": "Could not find project or node"}})
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async def start_node(project_id: UUID, node_id: UUID, start_data: dict):
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project = await Controller.instance().get_loaded_project(str(project_id))
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node = project.get_node(str(node_id))
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await node.start(data=start_data)
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@router.post("/projects/{project_id}/nodes/{node_id}/stop",
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summary="Stop a node",
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status_code=status.HTTP_204_NO_CONTENT,
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responses={404: {"model": ErrorMessage, "description": "Could not find project or node"}})
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async def stop_node(project_id: UUID, node_id: UUID):
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project = await Controller.instance().get_loaded_project(str(project_id))
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node = project.get_node(str(node_id))
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await node.stop()
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@router.post("/projects/{project_id}/nodes/{node_id}/suspend",
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summary="Suspend a node",
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status_code=status.HTTP_204_NO_CONTENT,
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responses={404: {"model": ErrorMessage, "description": "Could not find project or node"}})
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async def suspend_node(project_id: UUID, node_id: UUID):
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project = await Controller.instance().get_loaded_project(str(project_id))
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node = project.get_node(str(node_id))
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await node.suspend()
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@router.post("/projects/{project_id}/nodes/{node_id}/reload",
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summary="Reload a node",
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status_code=status.HTTP_204_NO_CONTENT,
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responses={404: {"model": ErrorMessage, "description": "Could not find project or node"}})
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async def reload_node(project_id: UUID, node_id: UUID):
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project = await Controller.instance().get_loaded_project(str(project_id))
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node = project.get_node(str(node_id))
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await node.reload()
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@router.get("/projects/{project_id}/nodes/{node_id}/links",
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summary="List of all node links",
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response_model=List[schemas.Link],
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response_description="List of links",
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response_model_exclude_unset=True)
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async def node_links(project_id: UUID, node_id: UUID):
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"""
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Return all the links connected to the node.
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"""
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project = await Controller.instance().get_loaded_project(str(project_id))
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node = project.get_node(str(node_id))
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links = []
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for link in node.links:
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links.append(link.__json__())
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return links
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@router.get("/projects/{project_id}/nodes/{node_id}/dynamips/auto_idlepc",
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summary="Compute an Idle-PC",
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responses={404: {"model": ErrorMessage, "description": "Could not find project or node"}})
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async def auto_idlepc(project_id: UUID, node_id: UUID):
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"""
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Compute an Idle-PC value for a Dynamips node
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"""
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project = await Controller.instance().get_loaded_project(str(project_id))
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node = project.get_node(str(node_id))
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return await node.dynamips_auto_idlepc()
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@router.get("/projects/{project_id}/nodes/{node_id}/dynamips/idlepc_proposals",
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summary="Compute list of Idle-PC values",
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responses={404: {"model": ErrorMessage, "description": "Could not find project or node"}})
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async def idlepc_proposals(project_id: UUID, node_id: UUID):
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"""
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Compute a list of potential idle-pc values for a Dynamips node
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"""
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project = await Controller.instance().get_loaded_project(str(project_id))
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node = project.get_node(str(node_id))
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return await node.dynamips_idlepc_proposals()
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@router.post("/projects/{project_id}/nodes/{node_id}/resize_disk",
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summary="Resize a disk",
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status_code=status.HTTP_201_CREATED,
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responses={404: {"model": ErrorMessage, "description": "Could not find project or node"}})
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async def resize_disk(project_id: UUID, node_id: UUID, resize_data: dict):
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project = await Controller.instance().get_loaded_project(str(project_id))
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node = project.get_node(str(node_id))
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await node.post("/resize_disk", **resize_data)
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@router.get("/projects/{project_id}/nodes/{node_id}/files/{file_path:path}",
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summary="Get a file in the node directory",
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responses={404: {"model": ErrorMessage, "description": "Could not find project or node"}})
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async def get_file(project_id: UUID, node_id: UUID, file_path: str):
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project = await Controller.instance().get_loaded_project(str(project_id))
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node = project.get_node(str(node_id))
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path = force_unix_path(file_path)
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# Raise error if user try to escape
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if path[0] == ".":
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raise ControllerForbiddenError("It is forbidden to get a file outside the project directory")
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node_type = node.node_type
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path = "/project-files/{}/{}/{}".format(node_type, node.id, path)
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res = await node.compute.http_query("GET", "/projects/{project_id}/files{path}".format(project_id=project.id, path=path), timeout=None, raw=True)
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return Response(res.body, media_type="application/octet-stream")
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@router.post("/projects/{project_id}/nodes/{node_id}/files/{file_path:path}",
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summary="Write a file in the node directory",
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status_code=status.HTTP_201_CREATED,
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responses={404: {"model": ErrorMessage, "description": "Could not find project or node"}})
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async def post_file(project_id: UUID, node_id: UUID, file_path: str, request: Request):
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project = await Controller.instance().get_loaded_project(str(project_id))
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node = project.get_node(str(node_id))
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path = force_unix_path(file_path)
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# Raise error if user try to escape
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if path[0] == ".":
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raise ControllerForbiddenError("Cannot write outside the node directory")
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node_type = node.node_type
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path = "/project-files/{}/{}/{}".format(node_type, node.id, path)
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data = await request.body() #FIXME: are we handling timeout or large files correctly?
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await node.compute.http_query("POST", "/projects/{project_id}/files{path}".format(project_id=project.id, path=path), data=data, timeout=None, raw=True)
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# @Route.get(
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# r"/projects/{project_id}/nodes/{node_id}/console/ws",
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# parameters={
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# "project_id": "Project UUID",
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# "node_id": "Node UUID"
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# },
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# description="Connect to WebSocket console",
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# status_codes={
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# 200: "File returned",
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# 403: "Permission denied",
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# 404: "The file doesn't exist"
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# })
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# async def ws_console(request, response):
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#
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# project = await Controller.instance().get_loaded_project(request.match_info["project_id"])
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# node = project.get_node(request.match_info["node_id"])
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# compute = node.compute
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# ws = aiohttp.web.WebSocketResponse()
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# await ws.prepare(request)
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# request.app['websockets'].add(ws)
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#
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# ws_console_compute_url = "ws://{compute_host}:{compute_port}/v2/compute/projects/{project_id}/{node_type}/nodes/{node_id}/console/ws".format(compute_host=compute.host,
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# compute_port=compute.port,
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# project_id=project.id,
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# node_type=node.node_type,
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# node_id=node.id)
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#
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# async def ws_forward(ws_client):
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# async for msg in ws:
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# if msg.type == aiohttp.WSMsgType.TEXT:
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# await ws_client.send_str(msg.data)
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# elif msg.type == aiohttp.WSMsgType.BINARY:
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# await ws_client.send_bytes(msg.data)
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# elif msg.type == aiohttp.WSMsgType.ERROR:
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# break
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#
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# try:
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# async with aiohttp.ClientSession(connector=aiohttp.TCPConnector(limit=None, force_close=True)) as session:
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# async with session.ws_connect(ws_console_compute_url) as ws_client:
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# asyncio.ensure_future(ws_forward(ws_client))
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# async for msg in ws_client:
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# if msg.type == aiohttp.WSMsgType.TEXT:
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# await ws.send_str(msg.data)
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# elif msg.type == aiohttp.WSMsgType.BINARY:
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# await ws.send_bytes(msg.data)
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# elif msg.type == aiohttp.WSMsgType.ERROR:
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# break
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# finally:
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# if not ws.closed:
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# await ws.close()
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# request.app['websockets'].discard(ws)
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#
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# return ws
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@router.post("/projects/{project_id}/nodes/console/reset",
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status_code=status.HTTP_204_NO_CONTENT,
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responses={404: {"model": ErrorMessage, "description": "Could not find project or node"}})
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async def reset_console_all(project_id: UUID):
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"""
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Reset console for all nodes belonging to the project.
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"""
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project = await Controller.instance().get_loaded_project(str(project_id))
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await project.reset_console_all()
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@router.post("/projects/{project_id}/nodes/{node_id}/console/reset",
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status_code=status.HTTP_204_NO_CONTENT,
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responses={404: {"model": ErrorMessage, "description": "Could not find project or node"}})
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async def console_reset(project_id: UUID, node_id: UUID):
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project = await Controller.instance().get_loaded_project(str(project_id))
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node = project.get_node(str(node_id))
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await node.post("/console/reset")#, request.json)
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