# -*- coding: utf-8 -*- # # 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 . import asyncio import contextlib import logging import aiohttp import pytest from types import SimpleNamespace from typing import List, Optional from fastapi import FastAPI, HTTPException, WebSocketDisconnect, status from httpx import AsyncClient from pydantic import SecretStr from httpx_ws import aconnect_ws from httpx_ws import WebSocketDisconnect as HttpxWebSocketDisconnect from httpx_ws.transport import ASGIWebSocketTransport, ASGIWebSocketAsyncNetworkStream from unittest.mock import MagicMock, patch from tests.utils import AsyncioMagicMock from gns3server.config import Config from gns3server.controller.node import Node from gns3server.controller.project import Project from gns3server.controller.compute import Compute from gns3server.utils.http_client import HTTPClient from gns3server.api.routes.controller.nodes import ws_console, vnc_console from gns3server.services import auth_service from gns3server.services.authentication import DEFAULT_JWT_SECRET_KEY pytestmark = pytest.mark.asyncio class TestNodeRoutes: @pytest.fixture def node(self, project: Project, compute: Compute) -> Node: node = Node(project, compute, "test", node_type="vpcs") project._nodes[node.id] = node return node async def test_create_node(self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute) -> None: response = MagicMock() response.json = {"console": 2048} compute.post = AsyncioMagicMock(return_value=response) response = await client.post(app.url_path_for("create_node", project_id=project.id), json={ "name": "test", "node_type": "vpcs", "compute_id": "example.com", "properties": { "startup_script": "echo test" } }) assert response.status_code == status.HTTP_201_CREATED assert response.json()["name"] == "test" assert "name" not in response.json()["properties"] async def test_list_node(self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute) -> None: response = MagicMock() response.json = {"console": 2048} compute.post = AsyncioMagicMock(return_value=response) await client.post(app.url_path_for("create_node", project_id=project.id), json={ "name": "test", "node_type": "vpcs", "compute_id": "example.com", "properties": { "startup_script": "echo test" } }) response = await client.get(app.url_path_for("get_nodes", project_id=project.id)) assert response.status_code == status.HTTP_200_OK assert response.json()[0]["name"] == "test" # test listing nodes from a closed project await project.close(ignore_notification=True) response = await client.get(app.url_path_for("get_nodes", project_id=project.id)) assert response.status_code == status.HTTP_200_OK assert response.json()[0]["name"] == "test" @pytest.mark.parametrize( "tags, expected_match", ( ([], True), (["tag1"], True), (["tag1", "tag2"], True), (["tag42"], False), (["tag1", "tag3"], False), ), ) async def test_list_nodes_with_tags( self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute, tags: list, expected_match: bool ) -> None: response = MagicMock() response.json = {"console": 2048} compute.post = AsyncioMagicMock(return_value=response) await client.post(app.url_path_for("create_node", project_id=project.id), json={ "name": "test", "node_type": "vpcs", "compute_id": "example.com", "tags": ["tag1", "tag2"], "properties": { "startup_script": "echo test" } }) await client.post(app.url_path_for("create_node", project_id=project.id), json={ "name": "test2", "node_type": "vpcs", "compute_id": "example.com", "tags": ["tag3", "tag4"], "properties": { "startup_script": "echo test" } }) params = {"tags": tags} response = await client.get(app.url_path_for("get_nodes", project_id=project.id), params=params) assert response.status_code == status.HTTP_200_OK if expected_match: assert len(response.json()) > 0 else: assert len(response.json()) == 0 async def test_get_node( self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute ) -> None: response = MagicMock() response.json = {"console": 2048} compute.post = AsyncioMagicMock(return_value=response) response = await client.post(app.url_path_for("create_node", project_id=project.id), json={ "name": "test", "node_type": "vpcs", "compute_id": "example.com", "properties": { "startup_script": "echo test" } }) response = await client.get(app.url_path_for("get_node", project_id=project.id, node_id=response.json()["node_id"])) assert response.status_code == status.HTTP_200_OK assert response.json()["name"] == "test" async def test_update_node( self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute, node: Node ) -> None: response = MagicMock() response.json = {"console": 2048} compute.put = AsyncioMagicMock(return_value=response) response = await client.put(app.url_path_for("update_node", project_id=project.id, node_id=node.id), json={ "name": "test", "node_type": "vpcs", "compute_id": "example.com", "tags": ["tag1", "tag2"], "properties": { "startup_script": "echo test" } }) assert response.status_code == 200 assert response.json()["name"] == "test" assert "name" not in response.json()["properties"] assert response.json()["tags"] == ["tag1", "tag2"] async def test_start_all_nodes( self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute ) -> None: compute.post = AsyncioMagicMock() response = await client.post(app.url_path_for("start_all_nodes", project_id=project.id)) assert response.status_code == status.HTTP_204_NO_CONTENT async def test_stop_all_nodes( self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute ) -> None: compute.post = AsyncioMagicMock() response = await client.post(app.url_path_for("stop_all_nodes", project_id=project.id)) assert response.status_code == status.HTTP_204_NO_CONTENT async def test_suspend_all_nodes( self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute ) -> None: compute.post = AsyncioMagicMock() response = await client.post(app.url_path_for("suspend_all_nodes", project_id=project.id)) assert response.status_code == status.HTTP_204_NO_CONTENT async def test_reload_all_nodes( self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute ) -> None: compute.post = AsyncioMagicMock() response = await client.post(app.url_path_for("reload_all_nodes", project_id=project.id)) assert response.status_code == status.HTTP_204_NO_CONTENT async def test_reset_console_all_nodes( self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute ) -> None: compute.post = AsyncioMagicMock() response = await client.post(app.url_path_for("reset_console_all_nodes", project_id=project.id)) assert response.status_code == status.HTTP_204_NO_CONTENT async def test_start_node( self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute, node: Node ) -> None: compute.post = AsyncioMagicMock() response = await client.post(app.url_path_for("start_node", project_id=project.id, node_id=node.id), json={}) assert response.status_code == status.HTTP_204_NO_CONTENT async def test_stop_node( self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute, node: Node ) -> None: compute.post = AsyncioMagicMock() response = await client.post(app.url_path_for("stop_node", project_id=project.id, node_id=node.id)) assert response.status_code == status.HTTP_204_NO_CONTENT async def test_suspend_node( self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute, node: Node ) -> None: compute.post = AsyncioMagicMock() response = await client.post(app.url_path_for("suspend_node", project_id=project.id, node_id=node.id)) assert response.status_code == status.HTTP_204_NO_CONTENT async def test_suspend_node_unsupported( self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute, node: Node ) -> None: # node types without suspend support (e.g. VPCS, IOU) must surface the # compute 405 instead of reporting a fake success compute.post = AsyncioMagicMock( side_effect=HTTPException(status_code=status.HTTP_405_METHOD_NOT_ALLOWED, detail="Suspend is not supported") ) response = await client.post(app.url_path_for("suspend_node", project_id=project.id, node_id=node.id)) assert response.status_code == status.HTTP_405_METHOD_NOT_ALLOWED async def test_suspend_all_nodes_tolerates_unsupported( self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute, node: Node ) -> None: # suspending all nodes of a mixed project stays best-effort: nodes # without suspend support are skipped without failing the request compute.post = AsyncioMagicMock( side_effect=HTTPException(status_code=status.HTTP_405_METHOD_NOT_ALLOWED, detail="Suspend is not supported") ) response = await client.post(app.url_path_for("suspend_all_nodes", project_id=project.id)) assert response.status_code == status.HTTP_204_NO_CONTENT async def test_reload_node( self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute, node: Node ): compute.post = AsyncioMagicMock() response = await client.post(app.url_path_for("reload_node", project_id=project.id, node_id=node.id)) assert response.status_code == status.HTTP_204_NO_CONTENT async def test_isolate_node( self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute, node: Node ): compute.post = AsyncioMagicMock() response = await client.post(app.url_path_for("isolate_node", project_id=project.id, node_id=node.id)) assert response.status_code == status.HTTP_204_NO_CONTENT async def test_unisolate_node( self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute, node: Node ) -> None: compute.post = AsyncioMagicMock() response = await client.post(app.url_path_for("unisolate_node", project_id=project.id, node_id=node.id)) assert response.status_code == status.HTTP_204_NO_CONTENT async def test_duplicate_node( self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute, node: Node ) -> None: response = MagicMock() response.json({"console": 2035}) compute.post = AsyncioMagicMock(return_value=response) response = await client.post(app.url_path_for("duplicate_node", project_id=project.id, node_id=node.id), json={"x": 10, "y": 5, "z": 0}) assert response.status_code == status.HTTP_201_CREATED async def test_delete_node( self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute, node: Node ) -> None: compute.post = AsyncioMagicMock() response = await client.delete(app.url_path_for("delete_node", project_id=project.id, node_id=node.id)) assert response.status_code == status.HTTP_204_NO_CONTENT async def test_dynamips_idle_pc( self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute, node: Node ) -> None: response = MagicMock() response.json = {"idlepc": "0x60606f54"} compute.get = AsyncioMagicMock(return_value=response) node._node_type = "dynamips" # force Dynamips node type response = await client.get(app.url_path_for("auto_idlepc", project_id=project.id, node_id=node.id)) assert response.status_code == status.HTTP_200_OK assert response.json()["idlepc"] == "0x60606f54" async def test_dynamips_idle_pc_wrong_node_type( self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute, node: Node ) -> None: response = await client.get(app.url_path_for("auto_idlepc", project_id=project.id, node_id=node.id)) assert response.status_code == status.HTTP_400_BAD_REQUEST async def test_dynamips_idlepc_proposals( self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute, node: Node ) -> None: response = MagicMock() response.json = ["0x60606f54", "0x33805a22"] compute.get = AsyncioMagicMock(return_value=response) node._node_type = "dynamips" # force Dynamips node type response = await client.get(app.url_path_for("idlepc_proposals", project_id=project.id, node_id=node.id)) assert response.status_code == status.HTTP_200_OK assert response.json() == ["0x60606f54", "0x33805a22"] async def test_dynamips_idlepc_proposals_wrong_node_type( self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute, node: Node ) -> None: response = await client.get(app.url_path_for("idlepc_proposals", project_id=project.id, node_id=node.id)) assert response.status_code == status.HTTP_400_BAD_REQUEST async def test_qemu_disk_image_create( self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute, node: Node ) -> None: response = MagicMock() compute.post = AsyncioMagicMock(return_value=response) node._node_type = "qemu" # force Qemu node type response = await client.post( app.url_path_for("create_disk_image", project_id=project.id, node_id=node.id, disk_name="hda_disk.qcow2"), json={"format": "qcow2", "size": 30} ) assert response.status_code == status.HTTP_204_NO_CONTENT async def test_qemu_disk_image_create_wrong_node_type( self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute, node: Node ) -> None: response = await client.post( app.url_path_for("create_disk_image", project_id=project.id, node_id=node.id, disk_name="hda_disk.qcow2"), json={"format": "qcow2", "size": 30} ) assert response.status_code == status.HTTP_400_BAD_REQUEST async def test_qemu_disk_image_update( self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute, node: Node ) -> None: response = MagicMock() compute.put = AsyncioMagicMock(return_value=response) node._node_type = "qemu" # force Qemu node type response = await client.put( app.url_path_for("update_disk_image", project_id=project.id, node_id=node.id, disk_name="hda_disk.qcow2"), json={"extend": 10} ) assert response.status_code == status.HTTP_204_NO_CONTENT async def test_qemu_disk_image_update_wrong_node_type( self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute, node: Node ) -> None: response = await client.put( app.url_path_for("update_disk_image", project_id=project.id, node_id=node.id, disk_name="hda_disk.qcow2"), json={"extend": 10} ) assert response.status_code == status.HTTP_400_BAD_REQUEST async def test_qemu_disk_image_delete( self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute, node: Node ) -> None: response = MagicMock() compute.delete = AsyncioMagicMock(return_value=response) node._node_type = "qemu" # force Qemu node type response = await client.delete( app.url_path_for("delete_disk_image", project_id=project.id, node_id=node.id, disk_name="hda_disk.qcow2") ) assert response.status_code == status.HTTP_204_NO_CONTENT async def test_qemu_disk_image_delete_wrong_node_type( self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute, node: Node ) -> None: response = await client.delete( app.url_path_for("delete_disk_image", project_id=project.id, node_id=node.id, disk_name="hda_disk.qcow2") ) assert response.status_code == status.HTTP_400_BAD_REQUEST async def test_get_file( self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute, node: Node ) -> None: # Mock the streaming response async def mock_iter_chunked(chunk_size): yield b"world" mock_stream = AsyncioMagicMock() mock_stream.iter_chunked = mock_iter_chunked mock_stream.close = MagicMock() mock_response = AsyncioMagicMock() mock_response.status = status.HTTP_200_OK mock_response.content = mock_stream compute.http_query = AsyncioMagicMock(return_value=mock_response) response = await client.get(app.url_path_for("get_file", project_id=project.id, node_id=node.id, file_path="hello")) assert response.status_code == status.HTTP_200_OK assert response.content == b'world' compute.http_query.assert_called_with( "GET", "/projects/{project_id}/files/project-files/vpcs/{node_id}/hello".format( project_id=project.id, node_id=node.id), timeout=None, stream=True) response = await client.get(app.url_path_for( "get_file", project_id=project.id, node_id=node.id, file_path="../hello")) assert response.status_code == status.HTTP_404_NOT_FOUND async def test_post_file( self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute, node: Node ) -> None: compute.http_query = AsyncioMagicMock() response = await client.post(app.url_path_for( "post_file", project_id=project.id, node_id=node.id, file_path="hello"), content=b"hello") assert response.status_code == status.HTTP_201_CREATED # Verify http_query was called with stream parameter compute.http_query.assert_called_once() call_args = compute.http_query.call_args assert call_args[0][0] == "POST" assert call_args[0][1] == "/projects/{project_id}/files/project-files/vpcs/{node_id}/hello".format(project_id=project.id, node_id=node.id) assert call_args[1]["timeout"] is None # data should be an async generator from request.stream() assert hasattr(call_args[1]["data"], "__aiter__") response = await client.get("/projects/{project_id}/nodes/{node_id}/files/../hello".format(project_id=project.id, node_id=node.id)) assert response.status_code == status.HTTP_404_NOT_FOUND # @pytest.mark.asyncio # async def test_get_and_post_with_nested_paths_normalization(controller_api, project, node, compute): # # response = MagicMock() # response.body = b"world" # compute.http_query = AsyncioMagicMock(return_value=response) # response = await controller_api.get("/projects/{project_id}/nodes/{node_id}/files/hello\\nested".format(project_id=project.id, node_id=node.id)) # assert response.status_code == 200 # assert response.content == b'world' # # compute.http_query.assert_called_with("GET", "/projects/{project_id}/files/project-files/vpcs/{node_id}/hello/nested".format(project_id=project.id, node_id=node.id), timeout=None, raw=True) # # compute.http_query = AsyncioMagicMock() # response = await controller_api.post("/projects/{project_id}/nodes/{node_id}/files/hello\\nested".format(project_id=project.id, node_id=node.id), body=b"hello", raw=True) # assert response.status_code == 201 # # compute.http_query.assert_called_with("POST", "/projects/{project_id}/files/project-files/vpcs/{node_id}/hello/nested".format(project_id=project.id, node_id=node.id), data=b'hello', timeout=None, raw=True) class FakeComputeConsoleWebSocket: """ Stand-in for the aiohttp ClientWebSocketResponse returned when connecting to the compute console WebSocket, yielding queued messages. """ def __init__(self, messages: List[aiohttp.WSMessage]): self._messages = messages self.closed = False async def __aenter__(self) -> "FakeComputeConsoleWebSocket": return self async def __aexit__(self, *exc_info) -> bool: self.closed = True return False def __aiter__(self): return self._iterate_messages() async def _iterate_messages(self): for message in self._messages: yield message async def close(self) -> None: self.closed = True async def send_str(self, data: str) -> None: # client -> compute traffic, not exercised here pass async def send_bytes(self, data: bytes) -> None: pass class FakeClientWebSocket: """ Stand-in for the starlette WebSocket facing the client. When fail_after is set, raises WebSocketDisconnect once that many sends succeeded, mimicking uvicorn raising ClientDisconnected when the client is gone mid-stream. """ def __init__(self, fail_after: Optional[int] = None): self.url = SimpleNamespace(scheme="http") self.client = SimpleNamespace(host="127.0.0.1", port=5000) self.sent: List[tuple] = [] self._fail_after = fail_after async def receive(self) -> dict: # the client never sends anything else and never completes a close # handshake: block until the forwarding task is cancelled, like a real # receive side waiting for a disconnect message that only arrives on # the send path await asyncio.Event().wait() async def receive_bytes(self) -> bytes: raise WebSocketDisconnect(code=1006) async def close(self, code: int = 1000, reason: Optional[str] = None) -> None: # notification that the console session ended; nothing to record pass async def send_text(self, data: str) -> None: self._check_client_alive() self.sent.append(("text", data)) async def send_bytes(self, data: bytes) -> None: self._check_client_alive() self.sent.append(("bytes", data)) def _check_client_alive(self) -> None: if self._fail_after is not None and len(self.sent) >= self._fail_after: raise WebSocketDisconnect(code=1006) class TestNodeConsoleWebSocketRoutes: """ Exercise the console/VNC WebSocket forwarding handlers directly. The in-process ASGI WebSocket transport never raises on send once the client disconnected (unlike uvicorn's real WebSocket protocol), so client disconnects mid-stream are reproduced with a fake client WebSocket. """ @pytest.fixture def node(self, project: Project, compute: Compute) -> Node: compute.host = "127.0.0.1" compute.port = 3080 node = Node(project, compute, "test", node_type="vpcs") project._nodes[node.id] = node return node @pytest.fixture def compute_credentials(self) -> None: server_config = Config.instance().settings.Server server_config.compute_username = "admin" server_config.compute_password = SecretStr("password") @staticmethod def _forward_compute_ws(monkeypatch, messages: List[aiohttp.WSMessage]) -> FakeComputeConsoleWebSocket: compute_ws = FakeComputeConsoleWebSocket(messages) monkeypatch.setattr( HTTPClient, "get_client", classmethod(lambda cls: SimpleNamespace(ws_connect=lambda *args, **kwargs: compute_ws)) ) return compute_ws async def test_console_forwards_compute_output_to_client( self, compute_credentials, node: Node, monkeypatch ) -> None: compute_ws = self._forward_compute_ws(monkeypatch, [ aiohttp.WSMessage(aiohttp.WSMsgType.TEXT, "device output", None), aiohttp.WSMessage(aiohttp.WSMsgType.BINARY, b"\x00\x01", None), ]) websocket = FakeClientWebSocket() await ws_console(websocket, current_user=MagicMock(), node=node) assert websocket.sent == [("text", "device output"), ("bytes", b"\x00\x01")] assert compute_ws.closed async def test_console_client_disconnect_mid_stream( self, compute_credentials, node: Node, monkeypatch, caplog ) -> None: # regression test: the client disconnects while the compute is still # streaming console output, send must not leak WebSocketDisconnect compute_ws = self._forward_compute_ws(monkeypatch, [ aiohttp.WSMessage(aiohttp.WSMsgType.TEXT, "line 1", None), aiohttp.WSMessage(aiohttp.WSMsgType.TEXT, "line 2", None), aiohttp.WSMessage(aiohttp.WSMsgType.TEXT, "line 3", None), ]) websocket = FakeClientWebSocket(fail_after=1) with caplog.at_level(logging.INFO): await ws_console(websocket, current_user=MagicMock(), node=node) assert websocket.sent == [("text", "line 1")] assert compute_ws.closed assert any("has disconnected from controller console WebSocket" in record.message for record in caplog.records) async def test_vnc_console_client_disconnect_mid_stream( self, compute_credentials, node: Node, monkeypatch ) -> None: # regression test: same as above for the VNC console forwarding loop compute_ws = self._forward_compute_ws(monkeypatch, [ aiohttp.WSMessage(aiohttp.WSMsgType.BINARY, b"\x01\x02", None), aiohttp.WSMessage(aiohttp.WSMsgType.BINARY, b"\x03\x04", None), ]) websocket = FakeClientWebSocket(fail_after=0) await vnc_console(websocket, current_user=MagicMock(), node=node) assert websocket.sent == [] assert compute_ws.closed class _FakeComputeWebSocket: """ Mimics the aiohttp client WebSocket the controller forwards console traffic to. Pass a list of WSMessage to emulate a compute that sends data then closes the session, or None to emulate a busy console streaming binary frames forever (until the controller cancels the forwarding task). """ def __init__(self, messages=None) -> None: self._messages = messages self.sent = [] # frames received from the client self.closed = False self.stream_cancelled = False async def send_str(self, data: str) -> None: self.sent.append(("text", data)) async def send_bytes(self, data: bytes) -> None: self.sent.append(("bytes", data)) async def close(self) -> None: self.closed = True def __aiter__(self): return self async def __anext__(self): if self._messages is not None: if not self._messages: raise StopAsyncIteration return self._messages.pop(0) try: await asyncio.sleep(0.05) except asyncio.CancelledError: self.stream_cancelled = True raise return aiohttp.WSMessage(aiohttp.WSMsgType.BINARY, b"console output", "") class _FakeComputeWebSocketContext: """Async context manager mimicking the object returned by aiohttp ws_connect().""" def __init__(self, websocket: _FakeComputeWebSocket) -> None: self._websocket = websocket async def __aenter__(self) -> _FakeComputeWebSocket: return self._websocket async def __aexit__(self, *exc_info) -> bool: await self._websocket.close() return False # The in-memory ASGI WebSocket transport notifies the app of a client close with a # non-conformant "websocket.close" message, which starlette's receive() rejects. # Patch it to deliver "websocket.disconnect" like a real ASGI server (uvicorn) does. _original_stream_send = ASGIWebSocketAsyncNetworkStream.send async def _conforming_stream_send(self, message): if message.get("type") == "websocket.close": message = {"type": "websocket.disconnect", "code": message.get("code") or 1000} await _original_stream_send(self, message) class TestConsoleWebSocketRoutes: """ Walk the console/VNC WebSocket endpoints through the ASGI stack: data is forwarded in both directions and both sides tear down cleanly when the other goes away, instead of letting a WebSocketDisconnect escape as an ASGI error. """ @pytest.fixture def node(self, project: Project, compute: Compute) -> Node: node = Node(project, compute, "test", node_type="qemu") project._nodes[node.id] = node return node @staticmethod def _patches(fake_ws: _FakeComputeWebSocket): """ Make HTTPClient.get_client().ws_connect() yield the fake compute WebSocket, and make the in-memory transport deliver a conformant disconnect message. """ stack = contextlib.ExitStack() http_client = MagicMock() http_client.ws_connect = MagicMock(return_value=_FakeComputeWebSocketContext(fake_ws)) stack.enter_context(patch( "gns3server.api.routes.controller.nodes.HTTPClient.get_client", return_value=http_client )) stack.enter_context(patch.object(ASGIWebSocketAsyncNetworkStream, "send", _conforming_stream_send)) return stack @staticmethod def _admin_token() -> str: return auth_service.create_access_token("admin", secret_key=DEFAULT_JWT_SECRET_KEY) @staticmethod async def _wait_for_teardown(fake_ws: _FakeComputeWebSocket) -> None: # the handler keeps running on the event loop after the client is gone for _ in range(100): if fake_ws.closed: await asyncio.sleep(0.1) # give cancelled tasks a chance to finish return await asyncio.sleep(0.05) async def test_console_ws_client_disconnect( self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute, node: Node, caplog ) -> None: """ A client disconnecting while the compute keeps streaming console output must not raise: the forwarding tasks are cancelled and the compute console WebSocket is closed. """ fake_ws = _FakeComputeWebSocket(messages=None) with self._patches(fake_ws), caplog.at_level(logging.INFO): async with AsyncClient(base_url="http://test-api", transport=ASGIWebSocketTransport(app=app)) as ws_client: async with aconnect_ws( app.url_path_for("ws_console", project_id=project.id, node_id=node.id), ws_client, params={"token": self._admin_token()}, ) as ws: # compute -> client assert await ws.receive_bytes() == b"console output" # client -> compute await ws.send_text("dir") await ws.send_bytes(b"\x01\x02") await self._wait_for_teardown(fake_ws) assert fake_ws.sent == [("text", "dir"), ("bytes", b"\x01\x02")] assert fake_ws.stream_cancelled, "the compute -> client forwarding task should have been cancelled" assert fake_ws.closed, "the compute console WebSocket should have been closed" assert any( "has disconnected from controller console WebSocket" in record.getMessage() for record in caplog.records ) async def test_console_ws_compute_closes_session( self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute, node: Node ) -> None: """ When the compute closes the console WebSocket the client should receive the frames sent before the close, then the close itself. """ fake_ws = _FakeComputeWebSocket(messages=[ aiohttp.WSMessage(aiohttp.WSMsgType.BINARY, b"output", ""), aiohttp.WSMessage(aiohttp.WSMsgType.TEXT, "done", ""), ]) with self._patches(fake_ws): async with AsyncClient(base_url="http://test-api", transport=ASGIWebSocketTransport(app=app)) as ws_client: async with aconnect_ws( app.url_path_for("ws_console", project_id=project.id, node_id=node.id), ws_client, params={"token": self._admin_token()}, ) as ws: assert await ws.receive_bytes() == b"output" assert await ws.receive_text() == "done" with pytest.raises(HttpxWebSocketDisconnect): await ws.receive_bytes() assert fake_ws.closed async def test_vnc_console_ws_client_disconnect( self, app: FastAPI, client: AsyncClient, project: Project, compute: Compute, node: Node, caplog ) -> None: """ Same as the console test, for the VNC endpoint (binary frames only). """ fake_ws = _FakeComputeWebSocket(messages=None) with self._patches(fake_ws), caplog.at_level(logging.INFO): async with AsyncClient(base_url="http://test-api", transport=ASGIWebSocketTransport(app=app)) as ws_client: async with aconnect_ws( app.url_path_for("vnc_console", project_id=project.id, node_id=node.id), ws_client, params={"token": self._admin_token()}, ) as ws: assert await ws.receive_bytes() == b"console output" await ws.send_bytes(b"\x01\x02") await self._wait_for_teardown(fake_ws) assert fake_ws.sent == [("bytes", b"\x01\x02")] assert fake_ws.stream_cancelled, "the compute -> client forwarding task should have been cancelled" assert fake_ws.closed, "the compute VNC console WebSocket should have been closed" assert any( "has disconnected from controller VNC console WebSocket" in record.getMessage() for record in caplog.records )