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fix: Well-Known DAV - OPTIONS liefert jetzt korrekt DAV-Header 

Flask hat trotz expliziter OPTIONS-Route Auto-OPTIONS generiert,
wodurch der DAV-Header fehlte. DAVx5 sieht so keinen Calendar-
Access und lehnt den Server ab.

Konsolidiert zu einem Handler mit method-basiertem Dispatch und
provide_automatic_options=False, damit Flask nicht dazwischenfunkt.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Stefan Hacker 2026-04-12 13:53:24 +02:00
parent 3f0d823dbf
commit 3c762e1476
1 changed files with 17 additions and 12 deletions
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29
backend/app/__init__.py
View File

@ -97,22 +97,27 @@ def create_app(config_class=Config):
# Well-known URLs for CalDAV/CardDAV auto-discovery (iOS, DAVx5, etc.).
# 301-Redirect bei PROPFIND ist bei einigen Clients zickig, deshalb
# delegieren wir intern direkt an die DAV-Handler, statt zu redirecten.
from flask import request
from app.dav.caldav import propfind as dav_propfind, options as dav_options
@app.route('/.well-known/caldav', methods=['GET', 'HEAD'])
@app.route('/.well-known/carddav', methods=['GET', 'HEAD'])
def wellknown_redirect():
def _wellknown_dav():
if request.method == 'PROPFIND':
return dav_propfind(subpath='')
if request.method == 'OPTIONS':
return dav_options()
return redirect('/dav/', code=301)
@app.route('/.well-known/caldav', methods=['PROPFIND'])
@app.route('/.well-known/carddav', methods=['PROPFIND'])
def wellknown_propfind():
return dav_propfind(subpath='')
@app.route('/.well-known/caldav', methods=['OPTIONS'])
@app.route('/.well-known/carddav', methods=['OPTIONS'])
def wellknown_options():
return dav_options()
app.add_url_rule(
'/.well-known/caldav', view_func=_wellknown_dav,
methods=['GET', 'HEAD', 'PROPFIND', 'OPTIONS'],
provide_automatic_options=False,
)
app.add_url_rule(
'/.well-known/carddav', view_func=_wellknown_dav,
endpoint='_wellknown_carddav',
methods=['GET', 'HEAD', 'PROPFIND', 'OPTIONS'],
provide_automatic_options=False,
)
# iCal export (public, no auth)
@app.route('/ical/<token>')