check-http/server.py
2019-01-19 07:58:37 +01:00

73 lines
2.7 KiB
Python

import aiohttp
import validators
from sanic import Sanic
from sanic.log import logger
from sanic.response import html, json as json_response
from sanic.exceptions import InvalidUsage
app = Sanic()
@app.route("/check/", methods=["POST"])
async def check_http(request):
ip = request.ip
try:
data = request.json
except InvalidUsage:
logger.info(f"Unvalid json in request, body is : {request.body}")
return json_response({
"status": "error",
"content": "InvalidUsage, body isn't proper json"
})
if not data or "domain" not in data:
logger.info(f"Unvalid request didn't specified a domain (body is : {request.body}")
return json_response({"status": "error", "content": "request must specify a domain"})
domain = data["domain"]
if not validators.domain(domain):
logger.info(f"Invalid request, is not in the right format (domain is : {domain})")
return json_response({"status": "error", "content": "domain is not in the right format (do not include http:// or https://)"})
# TODO DNS check
async with aiohttp.ClientSession() as session:
try:
async with session.get("http://" + domain, timeout=aiohttp.ClientTimeout(total=30)) as response:
# XXX in the futur try to do a double check with the server to
# see if the correct content is get
await response.text()
logger.info(f"Success when checking http access for {domain} asked by {ip}")
# TODO various kind of errors
except aiohttp.client_exceptions.ClientConnectorError:
return json_response({"status": "error", "content": "connection error, could not connect to the requested domain, it's very likely unreachable"})
except Exception:
import traceback
traceback.print_exc()
return json_response({"status": "error", "content": "an error happen while trying to get your domain, it's very likely unreachable"})
# [x] - get ip
# [x] - get request json
# [x] - in request json get domain target
# [ ] - validate domain is in correct format
# [ ] - check dns that domain == ip
# [ ] - if not, complain
# [x] - if everything is ok, try to get with http
# [x] - ADD TIMEOUT
# [x] - try/catch, if everything is ok → response ok
# [x] - otherwise reponse with exception
return json_response({"status": "ok"})
@app.route("/")
async def main(request):
return html("You aren't really supposed to use this website using your browser.<br><br>It's a small server to check if a YunoHost instance can be reached by http before trying to instal a LE certificate.")
if __name__ == "__main__":
app.run(host="0.0.0.0", port=7000)