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Ensure hassio does not do blocking I/O to get forwarded host

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request.host can fallback to doing blocking I/O because of
https://github.com/aio-libs/aiohttp/issues/9308
This commit is contained in:
J. Nick Koston 2024-09-27 03:33:36 -05:00
parent fb0e102d74
commit ea726e14c6
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1 changed files with 9 additions and 7 deletions
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16
homeassistant/components/hassio/ingress.py
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@ -253,15 +253,17 @@ def _init_header(request: web.Request, token: str) -> CIMultiDict | dict[str, st
headers[hdrs.X_FORWARDED_FOR] = _forwarded_for_header(forward_for, peername[0])
# Set X-Forwarded-Host
if not (forward_host := request.headers.get(hdrs.X_FORWARDED_HOST)):
forward_host = request.host
headers[hdrs.X_FORWARDED_HOST] = forward_host
# Avoid calling request.host as it can fallback to doing blocking DNS lookups
# https://github.com/aio-libs/aiohttp/issues/9308
if forward_host := request.headers.get(
hdrs.X_FORWARDED_HOST
) or request.headers.get(hdrs.HOST):
headers[hdrs.X_FORWARDED_HOST] = forward_host
# Set X-Forwarded-Proto
forward_proto = request.headers.get(hdrs.X_FORWARDED_PROTO)
if not forward_proto:
forward_proto = request.scheme
headers[hdrs.X_FORWARDED_PROTO] = forward_proto
headers[hdrs.X_FORWARDED_PROTO] = (
request.headers.get(hdrs.X_FORWARDED_PROTO) or request.scheme
)
return headers