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# This file is part of Radicale Server - Calendar 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/>. from http import client from xml.etree import ElementTree as ET from radicale import app, httputils, storage, xmlutils def xml_delete(base_prefix, path, collection, href=None): """Read and answer DELETE requests. Read rfc4918-9.6 for info. """ collection.delete(href) 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) status = ET.Element(xmlutils.make_clark("D:status")) status.text = xmlutils.make_response(200) response.append(status) return multistatus class ApplicationDeleteMixin: def do_DELETE(self, environ, base_prefix, path, user): """Manage DELETE request.""" access = app.Access(self._rights, user, path) if not access.check("w"): return httputils.NOT_ALLOWED with self._storage.acquire_lock("w", user): item = next(self._storage.discover(path), None) if not item: return httputils.NOT_FOUND if not access.check("w", item): return httputils.NOT_ALLOWED if_match = environ.get("HTTP_IF_MATCH", "*") if if_match not in ("*", item.etag): # ETag precondition not verified, do not delete item return httputils.PRECONDITION_FAILED if isinstance(item, storage.BaseCollection): xml_answer = xml_delete(base_prefix, path, item) else: xml_answer = xml_delete( base_prefix, path, item.collection, item.href) headers = {"Content-Type": "text/xml; charset=%s" % self._encoding} return client.OK, headers, self._write_xml_content(xml_answer)