radicale/radicale/app/proppatch.py
2021-12-09 16:55:46 +01:00

101 lines
4.1 KiB
Python

# This file is part of Radicale - CalDAV and CardDAV server
# Copyright © 2008 Nicolas Kandel
# Copyright © 2008 Pascal Halter
# Copyright © 2008-2017 Guillaume Ayoub
# Copyright © 2017-2018 Unrud <unrud@outlook.com>
#
# This library is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Radicale. If not, see <http://www.gnu.org/licenses/>.
import socket
import xml.etree.ElementTree as ET
from http import client
from typing import Dict, Optional, cast
import radicale.item as radicale_item
from radicale import httputils, storage, types, xmlutils
from radicale.app.base import Access, ApplicationBase
from radicale.log import logger
def xml_proppatch(base_prefix: str, path: str,
xml_request: Optional[ET.Element],
collection: storage.BaseCollection) -> ET.Element:
"""Read and answer PROPPATCH requests.
Read rfc4918-9.2 for info.
"""
multistatus = ET.Element(xmlutils.make_clark("D:multistatus"))
response = ET.Element(xmlutils.make_clark("D:response"))
multistatus.append(response)
href = ET.Element(xmlutils.make_clark("D:href"))
href.text = xmlutils.make_href(base_prefix, path)
response.append(href)
# Create D:propstat element for props with status 200 OK
propstat = ET.Element(xmlutils.make_clark("D:propstat"))
status = ET.Element(xmlutils.make_clark("D:status"))
status.text = xmlutils.make_response(200)
props_ok = ET.Element(xmlutils.make_clark("D:prop"))
propstat.append(props_ok)
propstat.append(status)
response.append(propstat)
props_with_remove = xmlutils.props_from_request(xml_request)
all_props_with_remove = cast(Dict[str, Optional[str]],
dict(collection.get_meta()))
all_props_with_remove.update(props_with_remove)
all_props = radicale_item.check_and_sanitize_props(all_props_with_remove)
collection.set_meta(all_props)
for short_name in props_with_remove:
props_ok.append(ET.Element(xmlutils.make_clark(short_name)))
return multistatus
class ApplicationPartProppatch(ApplicationBase):
def do_PROPPATCH(self, environ: types.WSGIEnviron, base_prefix: str,
path: str, user: str) -> types.WSGIResponse:
"""Manage PROPPATCH request."""
access = Access(self._rights, user, path)
if not access.check("w"):
return httputils.NOT_ALLOWED
try:
xml_content = self._read_xml_request_body(environ)
except RuntimeError as e:
logger.warning(
"Bad PROPPATCH request on %r: %s", path, e, exc_info=True)
return httputils.BAD_REQUEST
except socket.timeout:
logger.debug("Client timed out", exc_info=True)
return httputils.REQUEST_TIMEOUT
with self._storage.acquire_lock("w", user):
item = next(iter(self._storage.discover(path)), None)
if not item:
return httputils.NOT_FOUND
if not access.check("w", item):
return httputils.NOT_ALLOWED
if not isinstance(item, storage.BaseCollection):
return httputils.FORBIDDEN
headers = {"DAV": httputils.DAV_HEADERS,
"Content-Type": "text/xml; charset=%s" % self._encoding}
try:
xml_answer = xml_proppatch(base_prefix, path, xml_content,
item)
except ValueError as e:
logger.warning(
"Bad PROPPATCH request on %r: %s", path, e, exc_info=True)
return httputils.BAD_REQUEST
return client.MULTI_STATUS, headers, self._xml_response(xml_answer)