cloudflared/component-tests/test_tail.py
Devin Carr 38cd455e4d TUN-7373: Streaming logs override for same actor
To help accommodate web browser interactions with websockets, when a
streaming logs session is requested for the same actor while already
serving a session for that user in a separate request, the original
request will be closed and the new request start streaming logs
instead. This should help with rogue sessions holding on for too long
with no client on the other side (before idle timeout or connection
close).
2023-04-21 11:54:37 -07:00

160 lines
7.8 KiB
Python

#!/usr/bin/env python
import asyncio
import json
import pytest
import requests
import websockets
from websockets.client import connect, WebSocketClientProtocol
from conftest import CfdModes
from constants import MAX_RETRIES, BACKOFF_SECS
from retrying import retry
from cli import CloudflaredCli
from util import LOGGER, start_cloudflared, write_config, wait_tunnel_ready
class TestTail:
@pytest.mark.asyncio
async def test_start_stop_streaming(self, tmp_path, component_tests_config):
"""
Validates that a websocket connection to management.argotunnel.com/logs can be opened
with the access token and start and stop streaming on-demand.
"""
print("test_start_stop_streaming")
config = component_tests_config(cfd_mode=CfdModes.NAMED, run_proxy_dns=False, provide_ingress=False)
LOGGER.debug(config)
headers = {}
headers["Content-Type"] = "application/json"
config_path = write_config(tmp_path, config.full_config)
with start_cloudflared(tmp_path, config, cfd_args=["run", "--hello-world"], new_process=True):
wait_tunnel_ready(tunnel_url=config.get_url(),
require_min_connections=1)
cfd_cli = CloudflaredCli(config, config_path, LOGGER)
url = cfd_cli.get_management_wsurl("logs", config, config_path)
async with connect(url, open_timeout=5, close_timeout=3) as websocket:
await websocket.send('{"type": "start_streaming"}')
await websocket.send('{"type": "stop_streaming"}')
await websocket.send('{"type": "start_streaming"}')
await websocket.send('{"type": "stop_streaming"}')
@pytest.mark.asyncio
async def test_streaming_logs(self, tmp_path, component_tests_config):
"""
Validates that a streaming logs connection will stream logs
"""
print("test_streaming_logs")
config = component_tests_config(cfd_mode=CfdModes.NAMED, run_proxy_dns=False, provide_ingress=False)
LOGGER.debug(config)
headers = {}
headers["Content-Type"] = "application/json"
config_path = write_config(tmp_path, config.full_config)
with start_cloudflared(tmp_path, config, cfd_args=["run", "--hello-world"], new_process=True):
wait_tunnel_ready(tunnel_url=config.get_url(),
require_min_connections=1)
cfd_cli = CloudflaredCli(config, config_path, LOGGER)
url = cfd_cli.get_management_wsurl("logs", config, config_path)
async with connect(url, open_timeout=5, close_timeout=5) as websocket:
# send start_streaming
await websocket.send('{"type": "start_streaming"}')
# send some http requests to the tunnel to trigger some logs
await asyncio.wait_for(generate_and_validate_log_event(websocket, config.get_url()), 10)
# send stop_streaming
await websocket.send('{"type": "stop_streaming"}')
@pytest.mark.asyncio
async def test_streaming_logs_filters(self, tmp_path, component_tests_config):
"""
Validates that a streaming logs connection will stream logs
but not http when filters applied.
"""
print("test_streaming_logs_filters")
config = component_tests_config(cfd_mode=CfdModes.NAMED, run_proxy_dns=False, provide_ingress=False)
LOGGER.debug(config)
headers = {}
headers["Content-Type"] = "application/json"
config_path = write_config(tmp_path, config.full_config)
with start_cloudflared(tmp_path, config, cfd_args=["run", "--hello-world"], new_process=True):
wait_tunnel_ready(tunnel_url=config.get_url(),
require_min_connections=1)
cfd_cli = CloudflaredCli(config, config_path, LOGGER)
url = cfd_cli.get_management_wsurl("logs", config, config_path)
async with connect(url, open_timeout=5, close_timeout=5) as websocket:
# send start_streaming with info logs only
await websocket.send(json.dumps({
"type": "start_streaming",
"filters": {
"events": ["tcp"]
}
}))
# don't expect any http logs
await generate_and_validate_no_log_event(websocket, config.get_url())
# send stop_streaming
await websocket.send('{"type": "stop_streaming"}')
@pytest.mark.asyncio
async def test_streaming_logs_actor_override(self, tmp_path, component_tests_config):
"""
Validates that a streaming logs session can be overriden by the same actor
"""
print("test_streaming_logs_actor_override")
config = component_tests_config(cfd_mode=CfdModes.NAMED, run_proxy_dns=False, provide_ingress=False)
LOGGER.debug(config)
headers = {}
headers["Content-Type"] = "application/json"
config_path = write_config(tmp_path, config.full_config)
with start_cloudflared(tmp_path, config, cfd_args=["run", "--hello-world"], new_process=True):
wait_tunnel_ready(tunnel_url=config.get_url(),
require_min_connections=1)
cfd_cli = CloudflaredCli(config, config_path, LOGGER)
url = cfd_cli.get_management_wsurl("logs", config, config_path)
task = asyncio.ensure_future(start_streaming_to_be_remotely_closed(url))
override_task = asyncio.ensure_future(start_streaming_override(url))
await asyncio.wait([task, override_task])
assert task.exception() == None, task.exception()
assert override_task.exception() == None, override_task.exception()
async def start_streaming_to_be_remotely_closed(url):
async with connect(url, open_timeout=5, close_timeout=5) as websocket:
try:
await websocket.send(json.dumps({"type": "start_streaming"}))
await asyncio.sleep(10)
assert websocket.closed, "expected this request to be forcibly closed by the override"
except websockets.ConnectionClosed:
# we expect the request to be closed
pass
async def start_streaming_override(url):
# wait for the first connection to be established
await asyncio.sleep(1)
async with connect(url, open_timeout=5, close_timeout=5) as websocket:
await websocket.send(json.dumps({"type": "start_streaming"}))
await asyncio.sleep(1)
await websocket.send(json.dumps({"type": "stop_streaming"}))
await asyncio.sleep(1)
# Every http request has two log lines sent
async def generate_and_validate_log_event(websocket: WebSocketClientProtocol, url: str):
send_request(url)
req_line = await websocket.recv()
log_line = json.loads(req_line)
assert log_line["type"] == "logs"
assert log_line["logs"][0]["event"] == "http"
req_line = await websocket.recv()
log_line = json.loads(req_line)
assert log_line["type"] == "logs"
assert log_line["logs"][0]["event"] == "http"
# Every http request has two log lines sent
async def generate_and_validate_no_log_event(websocket: WebSocketClientProtocol, url: str):
send_request(url)
try:
# wait for 5 seconds and make sure we hit the timeout and not recv any events
req_line = await asyncio.wait_for(websocket.recv(), 5)
assert req_line == None, "expected no logs for the specified filters"
except asyncio.TimeoutError:
pass
@retry(stop_max_attempt_number=MAX_RETRIES, wait_fixed=BACKOFF_SECS * 1000)
def send_request(url, headers={}):
with requests.Session() as s:
resp = s.get(url, timeout=BACKOFF_SECS, headers=headers)
assert resp.status_code == 200, f"{url} returned {resp}"
return resp.status_code == 200