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gns3-server/gns3server/endpoints/controller/links.py
2020-10-02 16:07:50 +09:30

218 lines
8.5 KiB
Python

# -*- coding: utf-8 -*-
#
# Copyright (C) 2016 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 endpoints for links.
"""
from fastapi import APIRouter, Request, status
from fastapi.encoders import jsonable_encoder
from fastapi.responses import StreamingResponse
from typing import List
from uuid import UUID
from gns3server.controller import Controller
from gns3server.controller.controller_error import ControllerError
from gns3server.endpoints.schemas.common import ErrorMessage
from gns3server.endpoints.schemas.links import Link
import aiohttp
import multidict
router = APIRouter()
@router.get("/projects/{project_id}/links",
summary="List of all links",
response_model=List[Link],
response_description="List of links",
response_model_exclude_unset=True)
async def list_links(project_id: UUID):
project = await Controller.instance().get_loaded_project(str(project_id))
return [v.__json__() for v in project.links.values()]
@router.post("/projects/{project_id}/links",
summary="Create a new link",
status_code=status.HTTP_201_CREATED,
response_model=Link,
responses={404: {"model": ErrorMessage, "description": "Could not find project"},
409: {"model": ErrorMessage, "description": "Could not create link"}})
async def create_link(project_id: UUID, link_data: Link):
"""
Create a new link on the controller.
"""
project = await Controller.instance().get_loaded_project(str(project_id))
link = await project.add_link()
link_data = jsonable_encoder(link_data, exclude_unset=True)
if "filters" in link_data:
await link.update_filters(link_data["filters"])
if "suspend" in link_data:
await link.update_suspend(link_data["suspend"])
try:
for node in link_data["nodes"]:
await link.add_node(project.get_node(node["node_id"]),
node.get("adapter_number", 0),
node.get("port_number", 0),
label=node.get("label"))
except ControllerError as e:
await project.delete_link(link.id)
raise e
return link.__json__()
@router.get("/projects/{project_id}/links/{link_id}/available_filters",
summary="List of filters",
responses={404: {"model": ErrorMessage, "description": "Could not find project or link"}})
async def list_filters(project_id: UUID, link_id: UUID):
"""
Return the list of filters available for this link.
"""
project = await Controller.instance().get_loaded_project(str(project_id))
link = project.get_link(str(link_id))
return link.available_filters()
@router.get("/projects/{project_id}/links/{link_id}",
summary="Get a link",
response_model=Link,
response_description="Link data",
response_model_exclude_unset=True,
responses={404: {"model": ErrorMessage, "description": "Could not find project or link"}})
async def get_link(project_id: UUID, link_id: UUID):
project = await Controller.instance().get_loaded_project(str(project_id))
link = project.get_link(str(link_id))
return link.__json__()
@router.put("/projects/{project_id}/links/{link_id}",
summary="Update a link",
response_model=Link,
response_description="Updated link",
response_model_exclude_unset=True,
responses={404: {"model": ErrorMessage, "description": "Project or link not found"}})
async def update_link(project_id: UUID, link_id: UUID, link_data: Link):
project = await Controller.instance().get_loaded_project(str(project_id))
link = project.get_link(str(link_id))
link_data = jsonable_encoder(link_data, exclude_unset=True)
if "filters" in link_data:
await link.update_filters(link_data["filters"])
if "suspend" in link_data:
await link.update_suspend(link_data["suspend"])
if "nodes" in link_data:
await link.update_nodes(link_data["nodes"])
return link.__json__()
@router.post("/projects/{project_id}/links/{link_id}/start_capture",
summary="Start a packet capture",
status_code=status.HTTP_201_CREATED,
response_model=Link,
responses={404: {"model": ErrorMessage, "description": "Project or link not found"}})
async def start_capture(project_id: UUID, link_id: UUID, capture_data: dict):
"""
Start packet capture on the link.
"""
project = await Controller.instance().get_loaded_project(str(project_id))
link = project.get_link(str(link_id))
await link.start_capture(data_link_type=capture_data.get("data_link_type", "DLT_EN10MB"),
capture_file_name=capture_data.get("capture_file_name"))
return link.__json__()
@router.post("/projects/{project_id}/links/{link_id}/stop_capture",
summary="Stop a packet capture",
status_code=status.HTTP_201_CREATED,
response_model=Link,
responses={404: {"model": ErrorMessage, "description": "Project or link not found"}})
async def stop_capture(project_id: UUID, link_id: UUID):
"""
Stop packet capture on the link.
"""
project = await Controller.instance().get_loaded_project(str(project_id))
link = project.get_link(str(link_id))
await link.stop_capture()
return link.__json__()
@router.delete("/projects/{project_id}/links/{link_id}",
summary="Delete a link",
status_code=status.HTTP_204_NO_CONTENT,
responses={404: {"model": ErrorMessage, "description": "Project or link not found"}})
async def delete(project_id: UUID, link_id: UUID):
"""
Delete link from the project.
"""
project = await Controller.instance().get_loaded_project(str(project_id))
await project.delete_link(str(link_id))
@router.post("/projects/{project_id}/links/{link_id}/reset",
summary="Reset a link",
response_model=Link,
responses={404: {"model": ErrorMessage, "description": "Project or link not found"}})
async def reset(project_id: UUID, link_id: UUID):
project = await Controller.instance().get_loaded_project(str(project_id))
link = project.get_link(str(link_id))
await link.reset()
return link.__json__()
# @router.post("/projects/{project_id}/links/{link_id}/pcap",
# summary="Stream a packet capture",
# responses={404: {"model": ErrorMessage, "description": "Project or link not found"}})
# async def pcap(project_id: UUID, link_id: UUID, request: Request):
# """
# Stream the PCAP capture file from compute.
# """
#
# project = await Controller.instance().get_loaded_project(str(project_id))
# link = project.get_link(str(link_id))
# if not link.capturing:
# raise ControllerError("This link has no active packet capture")
#
# compute = link.compute
# pcap_streaming_url = link.pcap_streaming_url()
# headers = multidict.MultiDict(request.headers)
# headers['Host'] = compute.host
# headers['Router-Host'] = request.client.host
# body = await request.body()
#
# connector = aiohttp.TCPConnector(limit=None, force_close=True)
# async with aiohttp.ClientSession(connector=connector, headers=headers) as session:
# async with session.request(request.method, pcap_streaming_url, timeout=None, data=body) as response:
# proxied_response = aiohttp.web.Response(headers=response.headers, status=response.status)
# if response.headers.get('Transfer-Encoding', '').lower() == 'chunked':
# proxied_response.enable_chunked_encoding()
#
# await proxied_response.prepare(request)
# async for data in response.content.iter_any():
# if not data:
# break
# await proxied_response.write(data)
#
# #return StreamingResponse(file_like, media_type="video/mp4"))