# -*- 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 . import aiohttp import multidict from gns3server.web.route import Route from gns3server.controller import Controller from gns3server.schemas.link import ( LINK_OBJECT_SCHEMA, LINK_CAPTURE_SCHEMA ) class LinkHandler: """ API entry point for Link """ @Route.get( r"/projects/{project_id}/links", parameters={ "project_id": "Project UUID" }, status_codes={ 200: "List of links returned", }, description="List links of a project") async def list_links(request, response): project = await Controller.instance().get_loaded_project(request.match_info["project_id"]) response.json([v for v in project.links.values()]) @Route.post( r"/projects/{project_id}/links", parameters={ "project_id": "Project UUID" }, status_codes={ 201: "Link created", 400: "Invalid request" }, description="Create a new link instance", input=LINK_OBJECT_SCHEMA, output=LINK_OBJECT_SCHEMA) async def create(request, response): project = await Controller.instance().get_loaded_project(request.match_info["project_id"]) link = await project.add_link() if "filters" in request.json: await link.update_filters(request.json["filters"]) if "link_style" in request.json: await link.update_link_style(request.json["link_style"]) if "suspend" in request.json: await link.update_suspend(request.json["suspend"]) try: for node in request.json["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 aiohttp.web.HTTPException as e: await project.delete_link(link.id) raise e response.set_status(201) response.json(link) @Route.get( r"/projects/{project_id}/links/{link_id}/available_filters", parameters={ "project_id": "Project UUID", "link_id": "Link UUID" }, status_codes={ 200: "List of filters", 400: "Invalid request" }, description="Return the list of filters available for this link") async def list_filters(request, response): project = await Controller.instance().get_loaded_project(request.match_info["project_id"]) link = project.get_link(request.match_info["link_id"]) response.set_status(200) response.json(link.available_filters()) @Route.get( r"/projects/{project_id}/links/{link_id}", parameters={ "project_id": "Project UUID", "link_id": "Link UUID" }, status_codes={ 200: "Link found", 400: "Invalid request", 404: "Link doesn't exist" }, description="Get a link instance", output=LINK_OBJECT_SCHEMA) async def get_link(request, response): project = await Controller.instance().get_loaded_project(request.match_info["project_id"]) link = project.get_link(request.match_info["link_id"]) response.set_status(200) response.json(link) @Route.put( r"/projects/{project_id}/links/{link_id}", parameters={ "project_id": "Project UUID", "link_id": "Link UUID" }, status_codes={ 201: "Link updated", 400: "Invalid request" }, description="Update a link instance", input=LINK_OBJECT_SCHEMA, output=LINK_OBJECT_SCHEMA) async def update(request, response): project = await Controller.instance().get_loaded_project(request.match_info["project_id"]) link = project.get_link(request.match_info["link_id"]) if "filters" in request.json: await link.update_filters(request.json["filters"]) if "link_style" in request.json: await link.update_link_style(request.json["link_style"]) if "suspend" in request.json: await link.update_suspend(request.json["suspend"]) if "nodes" in request.json: await link.update_nodes(request.json["nodes"]) response.set_status(201) response.json(link) @Route.post( r"/projects/{project_id}/links/{link_id}/start_capture", parameters={ "project_id": "Project UUID", "link_id": "Link UUID" }, status_codes={ 201: "Capture started", 400: "Invalid request" }, input=LINK_CAPTURE_SCHEMA, output=LINK_OBJECT_SCHEMA, description="Start capture on a link instance. By default we consider it as an Ethernet link") async def start_capture(request, response): project = await Controller.instance().get_loaded_project(request.match_info["project_id"]) link = project.get_link(request.match_info["link_id"]) await link.start_capture(data_link_type=request.json.get("data_link_type", "DLT_EN10MB"), capture_file_name=request.json.get("capture_file_name")) response.set_status(201) response.json(link) @Route.post( r"/projects/{project_id}/links/{link_id}/stop_capture", parameters={ "project_id": "Project UUID", "link_id": "Link UUID" }, status_codes={ 201: "Capture stopped", 400: "Invalid request" }, description="Stop capture on a link instance") async def stop_capture(request, response): project = await Controller.instance().get_loaded_project(request.match_info["project_id"]) link = project.get_link(request.match_info["link_id"]) await link.stop_capture() response.set_status(201) response.json(link) @Route.delete( r"/projects/{project_id}/links/{link_id}", parameters={ "project_id": "Project UUID", "link_id": "Link UUID" }, status_codes={ 204: "Link deleted", 400: "Invalid request" }, description="Delete a link instance") async def delete(request, response): project = await Controller.instance().get_loaded_project(request.match_info["project_id"]) await project.delete_link(request.match_info["link_id"]) response.set_status(204) @Route.get( r"/projects/{project_id}/links/{link_id}/pcap", parameters={ "project_id": "Project UUID", "link_id": "Link UUID" }, description="Stream the PCAP capture file from compute", status_codes={ 200: "File returned", 403: "Permission denied", 404: "The file doesn't exist" }) async def pcap(request, response): project = await Controller.instance().get_loaded_project(request.match_info["project_id"]) ssl_context = Controller.instance().ssl_context() link = project.get_link(request.match_info["link_id"]) if not link.capturing: raise aiohttp.web.HTTPConflict(text="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.host body = await request.read() connector = aiohttp.TCPConnector(limit=None, force_close=True, ssl_context=ssl_context) 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)