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import logging
from base64 import b64decode, b64encode
from uuid import uuid4
from starlette.background import BackgroundTask
from starlette.requests import Request
from starlette.responses import Response
from ttun_server.proxy_queue import ProxyQueue
from ttun_server.types import HttpRequestData, HttpMessageType, HttpMessage
logger = logging.getLogger(__name__)
async def proxy(request: Request) -> Response:
[subdomain, *_] = request.headers['host'].split('.')
identifier = str(uuid4())
response_queue = await ProxyQueue.create_for_identifier(identifier)
try:
request_queue = await ProxyQueue.get_for_identifier(subdomain)
logger.debug('PROXY %s%s ', subdomain, request.url)
await request_queue.enqueue(
HttpMessage(
type=HttpMessageType.request.value,
identifier=identifier,
payload=HttpRequestData(
method=request.method,
path=str(request.url).replace(str(request.base_url), '/'),
headers=list(request.headers.items()),
body=b64encode(await request.body()).decode()
)
)
)
_response = await response_queue.dequeue()
payload = _response['payload']
return Response(
status_code=payload['status'],
headers=dict(payload['headers']),
content=b64decode(payload['body'].encode()),
background=BackgroundTask(response_queue.delete)
)
except AssertionError:
return Response(
content='Not Found',
status_code=404,
background=BackgroundTask(response_queue.delete)
)
async def health(_: Request) -> Response:
return Response(content='OK', status_code=200)
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