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More CSRF tweaks

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This commit is contained in:
Thomas Sileo 2022-07-11 09:42:39 +02:00
parent 2d035a03e9
commit 8dd6890a7d
1 changed files with 7 additions and 5 deletions
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12
app/config.py
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@ -10,7 +10,6 @@ import tomli
from fastapi import Form
from fastapi import HTTPException
from fastapi import Request
from itsdangerous import TimedSerializer
from itsdangerous import URLSafeTimedSerializer
from loguru import logger
@ -95,10 +94,13 @@ EMOJI_TPL = '<img src="/static/twemoji/{filename}.svg" alt="{raw}" class="emoji"
_load_emojis(ROOT_DIR, BASE_URL)
session_serializer = TimedSerializer(CONFIG.secret, salt="microblogpub.login")
session_serializer = URLSafeTimedSerializer(
CONFIG.secret,
salt=f"{ID}.session",
)
csrf_serializer = URLSafeTimedSerializer(
secrets.token_bytes(32),
salt=ID,
CONFIG.secret,
salt=f"{ID}.csrf",
)
@ -108,7 +110,7 @@ def generate_csrf_token() -> str:
def verify_csrf_token(csrf_token: str = Form()) -> None:
try:
csrf_serializer.loads(csrf_token, max_age=600)
csrf_serializer.loads(csrf_token, max_age=1800)
except (itsdangerous.BadData, itsdangerous.SignatureExpired):
logger.exception("Failed to verify CSRF token")
raise HTTPException(status_code=403, detail="CSRF error")