121 lines
4.4 KiB
Python
121 lines
4.4 KiB
Python
# This file is part of Radicale Server - Calendar Server
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# Copyright © 2008 Nicolas Kandel
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# Copyright © 2008 Pascal Halter
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# Copyright © 2008-2017 Guillaume Ayoub
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# Copyright © 2017-2018 Unrud <unrud@outlook.com>
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#
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# This library is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Radicale. If not, see <http://www.gnu.org/licenses/>.
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import socket
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from http import client
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from xml.etree import ElementTree as ET
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from radicale import app, httputils
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from radicale import item as radicale_item
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from radicale import storage, xmlutils
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from radicale.log import logger
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def xml_add_propstat_to(element, tag, status_number):
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"""Add a PROPSTAT response structure to an element.
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The PROPSTAT answer structure is defined in rfc4918-9.1. It is added to the
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given ``element``, for the following ``tag`` with the given
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``status_number``.
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"""
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propstat = ET.Element(xmlutils.make_clark("D:propstat"))
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element.append(propstat)
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prop = ET.Element(xmlutils.make_clark("D:prop"))
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propstat.append(prop)
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clark_tag = xmlutils.make_clark(tag)
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prop_tag = ET.Element(clark_tag)
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prop.append(prop_tag)
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status = ET.Element(xmlutils.make_clark("D:status"))
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status.text = xmlutils.make_response(status_number)
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propstat.append(status)
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def xml_proppatch(base_prefix, path, xml_request, collection):
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"""Read and answer PROPPATCH requests.
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Read rfc4918-9.2 for info.
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"""
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props_to_set = xmlutils.props_from_request(xml_request, actions=("set",))
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props_to_remove = xmlutils.props_from_request(xml_request,
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actions=("remove",))
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multistatus = ET.Element(xmlutils.make_clark("D:multistatus"))
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response = ET.Element(xmlutils.make_clark("D:response"))
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multistatus.append(response)
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href = ET.Element(xmlutils.make_clark("D:href"))
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href.text = xmlutils.make_href(base_prefix, path)
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response.append(href)
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new_props = collection.get_meta()
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for short_name, value in props_to_set.items():
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new_props[short_name] = value
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xml_add_propstat_to(response, short_name, 200)
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for short_name in props_to_remove:
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try:
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del new_props[short_name]
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except KeyError:
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pass
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xml_add_propstat_to(response, short_name, 200)
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radicale_item.check_and_sanitize_props(new_props)
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collection.set_meta(new_props)
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return multistatus
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class ApplicationProppatchMixin:
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def do_PROPPATCH(self, environ, base_prefix, path, user):
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"""Manage PROPPATCH request."""
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access = app.Access(self._rights, user, path)
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if not access.check("w"):
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return httputils.NOT_ALLOWED
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try:
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xml_content = self._read_xml_content(environ)
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except RuntimeError as e:
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logger.warning(
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"Bad PROPPATCH request on %r: %s", path, e, exc_info=True)
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return httputils.BAD_REQUEST
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except socket.timeout:
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logger.debug("client timed out", exc_info=True)
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return httputils.REQUEST_TIMEOUT
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with self._storage.acquire_lock("w", user):
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item = next(self._storage.discover(path), None)
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if not item:
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return httputils.NOT_FOUND
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if not access.check("w", item):
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return httputils.NOT_ALLOWED
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if not isinstance(item, storage.BaseCollection):
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return httputils.FORBIDDEN
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headers = {"DAV": httputils.DAV_HEADERS,
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"Content-Type": "text/xml; charset=%s" % self._encoding}
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try:
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xml_answer = xml_proppatch(base_prefix, path, xml_content,
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item)
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except ValueError as e:
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logger.warning(
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"Bad PROPPATCH request on %r: %s", path, e, exc_info=True)
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return httputils.BAD_REQUEST
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return (client.MULTI_STATUS, headers,
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self._write_xml_content(xml_answer))
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