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gns3-server/gns3server/api/routes/compute/ethernet_hub_nodes.py

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#
# 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 Ethernet hub nodes.
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"""
import os
from fastapi import APIRouter, Depends, Body, Path, Response, status
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from fastapi.encoders import jsonable_encoder
from fastapi.responses import StreamingResponse
from uuid import UUID
from gns3server.compute.dynamips import Dynamips
from gns3server.compute.dynamips.nodes.ethernet_hub import EthernetHub
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from gns3server import schemas
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responses = {404: {"model": schemas.ErrorMessage, "description": "Could not find project or Ethernet hub node"}}
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router = APIRouter(responses=responses)
def dep_node(project_id: UUID, node_id: UUID) -> EthernetHub:
"""
Dependency to retrieve a node.
"""
dynamips_manager = Dynamips.instance()
node = dynamips_manager.get_node(str(node_id), project_id=str(project_id))
return node
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@router.post(
"",
response_model=schemas.EthernetHub,
status_code=status.HTTP_201_CREATED,
responses={409: {"model": schemas.ErrorMessage, "description": "Could not create Ethernet hub node"}},
)
async def create_ethernet_hub(project_id: UUID, node_data: schemas.EthernetHubCreate) -> schemas.EthernetHub:
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"""
Create a new Ethernet hub.
"""
# Use the Dynamips Ethernet hub to simulate this node
dynamips_manager = Dynamips.instance()
node_data = jsonable_encoder(node_data, exclude_unset=True)
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node = await dynamips_manager.create_node(
node_data.pop("name"),
str(project_id),
node_data.get("node_id"),
node_type="ethernet_hub",
ports=node_data.get("ports_mapping"),
)
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return node.asdict()
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@router.get("/{node_id}", response_model=schemas.EthernetHub)
def get_ethernet_hub(node: EthernetHub = Depends(dep_node)) -> schemas.EthernetHub:
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"""
Return an Ethernet hub.
"""
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return node.asdict()
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@router.post("/{node_id}/duplicate", response_model=schemas.EthernetHub, status_code=status.HTTP_201_CREATED)
async def duplicate_ethernet_hub(
destination_node_id: UUID = Body(..., embed=True), node: EthernetHub = Depends(dep_node)
) -> schemas.EthernetHub:
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"""
Duplicate an Ethernet hub.
"""
new_node = await Dynamips.instance().duplicate_node(node.id, str(destination_node_id))
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return new_node.asdict()
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@router.put("/{node_id}", response_model=schemas.EthernetHub)
async def update_ethernet_hub(
node_data: schemas.EthernetHubUpdate,
node: EthernetHub = Depends(dep_node)
) -> schemas.EthernetHub:
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"""
Update an Ethernet hub.
"""
node_data = jsonable_encoder(node_data, exclude_unset=True)
if "name" in node_data and node.name != node_data["name"]:
await node.set_name(node_data["name"])
if "ports_mapping" in node_data:
node.ports_mapping = node_data["ports_mapping"]
node.updated()
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return node.asdict()
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@router.delete("/{node_id}", status_code=status.HTTP_204_NO_CONTENT)
async def delete_ethernet_hub(node: EthernetHub = Depends(dep_node)) -> Response:
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"""
Delete an Ethernet hub.
"""
await Dynamips.instance().delete_node(node.id)
return Response(status_code=status.HTTP_204_NO_CONTENT)
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@router.post("/{node_id}/start", status_code=status.HTTP_204_NO_CONTENT)
def start_ethernet_hub(node: EthernetHub = Depends(dep_node)) -> Response:
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"""
Start an Ethernet hub.
This endpoint results in no action since Ethernet hub nodes are always on.
"""
return Response(status_code=status.HTTP_204_NO_CONTENT)
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@router.post("/{node_id}/stop", status_code=status.HTTP_204_NO_CONTENT)
def stop_ethernet_hub(node: EthernetHub = Depends(dep_node)) -> Response:
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"""
Stop an Ethernet hub.
This endpoint results in no action since Ethernet hub nodes are always on.
"""
return Response(status_code=status.HTTP_204_NO_CONTENT)
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@router.post("/{node_id}/suspend", status_code=status.HTTP_204_NO_CONTENT)
def suspend_ethernet_hub(node: EthernetHub = Depends(dep_node)) -> Response:
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"""
Suspend an Ethernet hub.
This endpoint results in no action since Ethernet hub nodes are always on.
"""
return Response(status_code=status.HTTP_204_NO_CONTENT)
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@router.post(
"/{node_id}/adapters/{adapter_number}/ports/{port_number}/nio",
status_code=status.HTTP_201_CREATED,
response_model=schemas.UDPNIO,
)
async def create_nio(
*,
adapter_number: int = Path(..., ge=0, le=0),
port_number: int,
nio_data: schemas.UDPNIO,
node: EthernetHub = Depends(dep_node)
) -> schemas.UDPNIO:
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"""
Add a NIO (Network Input/Output) to the node.
The adapter number on the hub is always 0.
"""
nio = await Dynamips.instance().create_nio(node, jsonable_encoder(nio_data, exclude_unset=True))
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await node.add_nio(nio, port_number)
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return nio.asdict()
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@router.delete("/{node_id}/adapters/{adapter_number}/ports/{port_number}/nio", status_code=status.HTTP_204_NO_CONTENT)
async def delete_nio(
*,
adapter_number: int = Path(..., ge=0, le=0),
port_number: int,
node: EthernetHub = Depends(dep_node)
) -> Response:
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"""
Delete a NIO (Network Input/Output) from the node.
The adapter number on the hub is always 0.
"""
nio = await node.remove_nio(port_number)
await nio.delete()
return Response(status_code=status.HTTP_204_NO_CONTENT)
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@router.post("/{node_id}/adapters/{adapter_number}/ports/{port_number}/capture/start")
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async def start_capture(
*,
adapter_number: int = Path(..., ge=0, le=0),
port_number: int,
node_capture_data: schemas.NodeCapture,
node: EthernetHub = Depends(dep_node)
) -> dict:
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"""
Start a packet capture on the node.
The adapter number on the hub is always 0.
"""
pcap_file_path = os.path.join(node.project.capture_working_directory(), node_capture_data.capture_file_name)
await node.start_capture(port_number, pcap_file_path, node_capture_data.data_link_type)
return {"pcap_file_path": pcap_file_path}
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@router.post(
"/{node_id}/adapters/{adapter_number}/ports/{port_number}/capture/stop", status_code=status.HTTP_204_NO_CONTENT
)
async def stop_capture(
*,
adapter_number: int = Path(..., ge=0, le=0),
port_number: int,
node: EthernetHub = Depends(dep_node)
) -> Response:
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"""
Stop a packet capture on the node.
The adapter number on the hub is always 0.
"""
await node.stop_capture(port_number)
return Response(status_code=status.HTTP_204_NO_CONTENT)
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@router.get("/{node_id}/adapters/{adapter_number}/ports/{port_number}/capture/stream")
async def stream_pcap_file(
*,
adapter_number: int = Path(..., ge=0, le=0),
port_number: int,
node: EthernetHub = Depends(dep_node)
) -> StreamingResponse:
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"""
Stream the pcap capture file.
The adapter number on the hub is always 0.
"""
nio = node.get_nio(port_number)
stream = Dynamips.instance().stream_pcap_file(nio, node.project.id)
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return StreamingResponse(stream, media_type="application/vnd.tcpdump.pcap")