mirror of
https://github.com/GNS3/gns3-server.git
synced 2024-11-17 17:24:51 +02:00
392 lines
12 KiB
Python
392 lines
12 KiB
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/>.
|
|
|
|
"""
|
|
API routes for nodes.
|
|
"""
|
|
|
|
import aiohttp
|
|
import asyncio
|
|
|
|
from fastapi import APIRouter, Depends, WebSocket, WebSocketDisconnect, Request, Response, status
|
|
from fastapi.encoders import jsonable_encoder
|
|
from fastapi.routing import APIRoute
|
|
from typing import List, Callable
|
|
from uuid import UUID
|
|
|
|
from gns3server.controller import Controller
|
|
from gns3server.controller.node import Node
|
|
from gns3server.controller.project import Project
|
|
from gns3server.utils import force_unix_path
|
|
from gns3server.utils.http_client import HTTPClient
|
|
from gns3server.controller.controller_error import ControllerForbiddenError
|
|
from gns3server import schemas
|
|
|
|
import logging
|
|
|
|
log = logging.getLogger(__name__)
|
|
|
|
node_locks = {}
|
|
|
|
|
|
class NodeConcurrency(APIRoute):
|
|
"""
|
|
To avoid strange effects, we prevent concurrency
|
|
between the same instance of the node
|
|
(excepting when streaming a PCAP file and for WebSocket consoles).
|
|
"""
|
|
|
|
def get_route_handler(self) -> Callable:
|
|
original_route_handler = super().get_route_handler()
|
|
|
|
async def custom_route_handler(request: Request) -> Response:
|
|
|
|
node_id = request.path_params.get("node_id")
|
|
project_id = request.path_params.get("project_id")
|
|
|
|
if node_id and "pcap" not in request.url.path and not request.url.path.endswith("console/ws"):
|
|
lock_key = f"{project_id}:{node_id}"
|
|
node_locks.setdefault(lock_key, {"lock": asyncio.Lock(), "concurrency": 0})
|
|
node_locks[lock_key]["concurrency"] += 1
|
|
|
|
async with node_locks[lock_key]["lock"]:
|
|
response = await original_route_handler(request)
|
|
|
|
node_locks[lock_key]["concurrency"] -= 1
|
|
if node_locks[lock_key]["concurrency"] <= 0:
|
|
del node_locks[lock_key]
|
|
else:
|
|
response = await original_route_handler(request)
|
|
|
|
return response
|
|
|
|
return custom_route_handler
|
|
|
|
|
|
responses = {404: {"model": schemas.ErrorMessage, "description": "Could not find project or node"}}
|
|
|
|
router = APIRouter(route_class=NodeConcurrency, responses=responses)
|
|
|
|
|
|
async def dep_project(project_id: UUID) -> Project:
|
|
"""
|
|
Dependency to retrieve a project.
|
|
"""
|
|
|
|
project = await Controller.instance().get_loaded_project(str(project_id))
|
|
return project
|
|
|
|
|
|
async def dep_node(node_id: UUID, project: Project = Depends(dep_project)) -> None:
|
|
"""
|
|
Dependency to retrieve a node.
|
|
"""
|
|
|
|
node = project.get_node(str(node_id))
|
|
return node
|
|
|
|
|
|
@router.post(
|
|
"",
|
|
status_code=status.HTTP_201_CREATED,
|
|
response_model=schemas.Node,
|
|
responses={
|
|
404: {"model": schemas.ErrorMessage, "description": "Could not find project"},
|
|
409: {"model": schemas.ErrorMessage, "description": "Could not create node"},
|
|
},
|
|
)
|
|
async def create_node(node_data: schemas.NodeCreate, project: Project = Depends(dep_project)) -> schemas.Node:
|
|
"""
|
|
Create a new node.
|
|
"""
|
|
|
|
controller = Controller.instance()
|
|
compute = controller.get_compute(str(node_data.compute_id))
|
|
node_data = jsonable_encoder(node_data, exclude_unset=True)
|
|
node = await project.add_node(compute, node_data.pop("name"), node_data.pop("node_id", None), **node_data)
|
|
return node.asdict()
|
|
|
|
|
|
@router.get("", response_model=List[schemas.Node], response_model_exclude_unset=True)
|
|
async def get_nodes(project: Project = Depends(dep_project)) -> List[schemas.Node]:
|
|
"""
|
|
Return all nodes belonging to a given project.
|
|
"""
|
|
|
|
return [v.asdict() for v in project.nodes.values()]
|
|
|
|
|
|
@router.post("/start", status_code=status.HTTP_204_NO_CONTENT)
|
|
async def start_all_nodes(project: Project = Depends(dep_project)) -> None:
|
|
"""
|
|
Start all nodes belonging to a given project.
|
|
"""
|
|
|
|
await project.start_all()
|
|
|
|
|
|
@router.post("/stop", status_code=status.HTTP_204_NO_CONTENT)
|
|
async def stop_all_nodes(project: Project = Depends(dep_project)) -> None:
|
|
"""
|
|
Stop all nodes belonging to a given project.
|
|
"""
|
|
|
|
await project.stop_all()
|
|
|
|
|
|
@router.post("/suspend", status_code=status.HTTP_204_NO_CONTENT)
|
|
async def suspend_all_nodes(project: Project = Depends(dep_project)) -> None:
|
|
"""
|
|
Suspend all nodes belonging to a given project.
|
|
"""
|
|
|
|
await project.suspend_all()
|
|
|
|
|
|
@router.post("/reload", status_code=status.HTTP_204_NO_CONTENT)
|
|
async def reload_all_nodes(project: Project = Depends(dep_project)) -> None:
|
|
"""
|
|
Reload all nodes belonging to a given project.
|
|
"""
|
|
|
|
await project.stop_all()
|
|
await project.start_all()
|
|
|
|
|
|
@router.get("/{node_id}", response_model=schemas.Node)
|
|
def get_node(node: Node = Depends(dep_node)) -> schemas.Node:
|
|
"""
|
|
Return a node from a given project.
|
|
"""
|
|
|
|
return node.asdict()
|
|
|
|
|
|
@router.put("/{node_id}", response_model=schemas.Node, response_model_exclude_unset=True)
|
|
async def update_node(node_data: schemas.NodeUpdate, node: Node = Depends(dep_node)) -> schemas.Node:
|
|
"""
|
|
Update a node.
|
|
"""
|
|
|
|
node_data = jsonable_encoder(node_data, exclude_unset=True)
|
|
|
|
# Ignore these because we only use them when creating a node
|
|
node_data.pop("node_id", None)
|
|
node_data.pop("node_type", None)
|
|
node_data.pop("compute_id", None)
|
|
|
|
await node.update(**node_data)
|
|
return node.asdict()
|
|
|
|
|
|
@router.delete(
|
|
"/{node_id}",
|
|
status_code=status.HTTP_204_NO_CONTENT,
|
|
responses={**responses, 409: {"model": schemas.ErrorMessage, "description": "Cannot delete node"}},
|
|
)
|
|
async def delete_node(node_id: UUID, project: Project = Depends(dep_project)) -> None:
|
|
"""
|
|
Delete a node from a project.
|
|
"""
|
|
|
|
await project.delete_node(str(node_id))
|
|
|
|
|
|
@router.post("/{node_id}/duplicate", response_model=schemas.Node, status_code=status.HTTP_201_CREATED)
|
|
async def duplicate_node(duplicate_data: schemas.NodeDuplicate, node: Node = Depends(dep_node)) -> schemas.Node:
|
|
"""
|
|
Duplicate a node.
|
|
"""
|
|
|
|
new_node = await node.project.duplicate_node(node, duplicate_data.x, duplicate_data.y, duplicate_data.z)
|
|
return new_node.asdict()
|
|
|
|
|
|
@router.post("/{node_id}/start", status_code=status.HTTP_204_NO_CONTENT)
|
|
async def start_node(start_data: dict, node: Node = Depends(dep_node)) -> None:
|
|
"""
|
|
Start a node.
|
|
"""
|
|
|
|
await node.start(data=start_data)
|
|
|
|
|
|
@router.post("/{node_id}/stop", status_code=status.HTTP_204_NO_CONTENT)
|
|
async def stop_node(node: Node = Depends(dep_node)) -> None:
|
|
"""
|
|
Stop a node.
|
|
"""
|
|
|
|
await node.stop()
|
|
|
|
|
|
@router.post("/{node_id}/suspend", status_code=status.HTTP_204_NO_CONTENT)
|
|
async def suspend_node(node: Node = Depends(dep_node)) -> None:
|
|
"""
|
|
Suspend a node.
|
|
"""
|
|
|
|
await node.suspend()
|
|
|
|
|
|
@router.post("/{node_id}/reload", status_code=status.HTTP_204_NO_CONTENT)
|
|
async def reload_node(node: Node = Depends(dep_node)) -> None:
|
|
"""
|
|
Reload a node.
|
|
"""
|
|
|
|
await node.reload()
|
|
|
|
|
|
@router.get("/{node_id}/links", response_model=List[schemas.Link], response_model_exclude_unset=True)
|
|
async def get_node_links(node: Node = Depends(dep_node)) -> List[schemas.Link]:
|
|
"""
|
|
Return all the links connected to a node.
|
|
"""
|
|
|
|
links = []
|
|
for link in node.links:
|
|
links.append(link.asdict())
|
|
return links
|
|
|
|
|
|
@router.get("/{node_id}/dynamips/auto_idlepc")
|
|
async def auto_idlepc(node: Node = Depends(dep_node)) -> str:
|
|
"""
|
|
Compute an Idle-PC value for a Dynamips node
|
|
"""
|
|
|
|
return await node.dynamips_auto_idlepc()
|
|
|
|
|
|
@router.get("/{node_id}/dynamips/idlepc_proposals")
|
|
async def idlepc_proposals(node: Node = Depends(dep_node)) -> List[str]:
|
|
"""
|
|
Compute a list of potential idle-pc values for a Dynamips node
|
|
"""
|
|
|
|
return await node.dynamips_idlepc_proposals()
|
|
|
|
|
|
@router.post("/{node_id}/resize_disk", status_code=status.HTTP_204_NO_CONTENT)
|
|
async def resize_disk(resize_data: dict, node: Node = Depends(dep_node)) -> None:
|
|
"""
|
|
Resize a disk image.
|
|
"""
|
|
await node.post("/resize_disk", **resize_data)
|
|
|
|
|
|
@router.get("/{node_id}/files/{file_path:path}")
|
|
async def get_file(file_path: str, node: Node = Depends(dep_node)) -> Response:
|
|
"""
|
|
Return a file in the node directory
|
|
"""
|
|
|
|
path = force_unix_path(file_path)
|
|
|
|
# Raise error if user try to escape
|
|
if path[0] == ".":
|
|
raise ControllerForbiddenError("It is forbidden to get a file outside the project directory")
|
|
|
|
node_type = node.node_type
|
|
path = f"/project-files/{node_type}/{node.id}/{path}"
|
|
|
|
res = await node.compute.http_query("GET", f"/projects/{node.project.id}/files{path}", timeout=None, raw=True)
|
|
return Response(res.body, media_type="application/octet-stream", status_code=res.status)
|
|
|
|
|
|
@router.post("/{node_id}/files/{file_path:path}", status_code=status.HTTP_201_CREATED)
|
|
async def post_file(file_path: str, request: Request, node: Node = Depends(dep_node)):
|
|
"""
|
|
Write a file in the node directory.
|
|
"""
|
|
|
|
path = force_unix_path(file_path)
|
|
|
|
# Raise error if user try to escape
|
|
if path[0] == ".":
|
|
raise ControllerForbiddenError("Cannot write outside the node directory")
|
|
|
|
node_type = node.node_type
|
|
path = f"/project-files/{node_type}/{node.id}/{path}"
|
|
|
|
data = await request.body() # FIXME: are we handling timeout or large files correctly?
|
|
await node.compute.http_query("POST", f"/projects/{node.project.id}/files{path}", data=data, timeout=None, raw=True)
|
|
# FIXME: response with correct status code (from compute)
|
|
|
|
|
|
@router.websocket("/{node_id}/console/ws")
|
|
async def ws_console(websocket: WebSocket, node: Node = Depends(dep_node)) -> None:
|
|
"""
|
|
WebSocket console.
|
|
"""
|
|
|
|
compute = node.compute
|
|
await websocket.accept()
|
|
log.info(
|
|
f"New client {websocket.client.host}:{websocket.client.port} has connected to controller console WebSocket"
|
|
)
|
|
ws_console_compute_url = (
|
|
f"ws://{compute.host}:{compute.port}/v3/compute/projects/"
|
|
f"{node.project.id}/{node.node_type}/nodes/{node.id}/console/ws"
|
|
)
|
|
|
|
async def ws_receive(ws_console_compute):
|
|
"""
|
|
Receive WebSocket data from client and forward to compute console WebSocket.
|
|
"""
|
|
|
|
try:
|
|
while True:
|
|
data = await websocket.receive_text()
|
|
if data:
|
|
await ws_console_compute.send_str(data)
|
|
except WebSocketDisconnect:
|
|
await ws_console_compute.close()
|
|
log.info(
|
|
f"Client {websocket.client.host}:{websocket.client.port} has disconnected from controller"
|
|
f" console WebSocket"
|
|
)
|
|
|
|
try:
|
|
# receive WebSocket data from compute console WebSocket and forward to client.
|
|
async with HTTPClient.get_client().ws_connect(ws_console_compute_url) as ws_console_compute:
|
|
asyncio.ensure_future(ws_receive(ws_console_compute))
|
|
async for msg in ws_console_compute:
|
|
if msg.type == aiohttp.WSMsgType.TEXT:
|
|
await websocket.send_text(msg.data)
|
|
elif msg.type == aiohttp.WSMsgType.BINARY:
|
|
await websocket.send_bytes(msg.data)
|
|
elif msg.type == aiohttp.WSMsgType.ERROR:
|
|
break
|
|
except aiohttp.ClientError as e:
|
|
log.error(f"Client error received when forwarding to compute console WebSocket: {e}")
|
|
|
|
|
|
@router.post("/console/reset", status_code=status.HTTP_204_NO_CONTENT)
|
|
async def reset_console_all_nodes(project: Project = Depends(dep_project)) -> None:
|
|
"""
|
|
Reset console for all nodes belonging to the project.
|
|
"""
|
|
|
|
await project.reset_console_all()
|
|
|
|
|
|
@router.post("/{node_id}/console/reset", status_code=status.HTTP_204_NO_CONTENT)
|
|
async def console_reset(node: Node = Depends(dep_node)) -> None:
|
|
|
|
await node.post("/console/reset") # , request.json)
|