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authentik
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api: add legacy support for older outposts 

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>
This commit is contained in:
Jens Langhammer 2021-04-13 21:06:04 +02:00
parent 7798a046db
commit 5a25e6d697
1 changed files with 8 additions and 3 deletions
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11
authentik/api/auth.py
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@ -1,5 +1,5 @@
"""API Authentication"""
from base64 import b64decode
from base64 import b64decode, b64encode
from binascii import Error
from typing import Any, Optional, Union
@ -15,9 +15,14 @@ LOGGER = get_logger()
def token_from_header(raw_header: bytes) -> Optional[Token]:
"""raw_header in the Format of `Basic dGVzdDp0ZXN0`"""
auth_credentials = raw_header.decode()
# Accept headers with Type format and without
# Legacy, accept basic auth thats fully encoded (2021.3 outposts)
if " " not in auth_credentials:
return None
try:
plain = b64decode(auth_credentials.encode()).decode()
auth_type, body = plain.split()
auth_credentials = f"{auth_type} {b64encode(body.encode()).decode()}"
except (UnicodeDecodeError, Error):
return None
auth_type, auth_credentials = auth_credentials.split()
if auth_type.lower() not in ["basic", "bearer"]:
LOGGER.debug("Unsupported authentication type, denying", type=auth_type.lower())