mirror of
https://github.com/Kozea/Radicale.git
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139 lines
4.8 KiB
Python
139 lines
4.8 KiB
Python
# This file is part of Radicale Server - Calendar Server
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# Copyright © 2014 Jean-Marc Martins
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# Copyright © 2014-2016 Guillaume Ayoub
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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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"""
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Multi files per calendar filesystem storage backend.
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"""
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import os
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import json
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import shutil
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import time
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import sys
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from contextlib import contextmanager
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from . import filesystem
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from .. import ical
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from .. import log
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from .. import pathutils
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class Collection(filesystem.Collection):
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"""Collection stored in several files per calendar."""
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def _create_dirs(self):
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if not os.path.exists(self._filesystem_path):
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os.makedirs(self._filesystem_path)
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@property
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def headers(self):
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return (
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ical.Header("PRODID:-//Radicale//NONSGML Radicale Server//EN"),
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ical.Header("VERSION:%s" % self.version))
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def write(self):
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self._create_dirs()
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for component in self.components:
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text = ical.serialize(
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self.tag, self.headers, [component] + self.timezones)
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name = component.name
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if not pathutils.is_safe_filesystem_path_component(name):
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log.LOGGER.debug(
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"Can't tranlate name safely to filesystem, "
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"skipping component: %s", name)
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continue
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filesystem_path = os.path.join(self._filesystem_path, name)
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with filesystem.open(filesystem_path, "w") as fd:
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fd.write(text)
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def delete(self):
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shutil.rmtree(self._filesystem_path)
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os.remove(self._props_path)
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def remove(self, name):
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if not pathutils.is_safe_filesystem_path_component(name):
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log.LOGGER.debug(
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"Can't tranlate name safely to filesystem, "
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"skipping component: %s", name)
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return
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if name in self.items:
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del self.items[name]
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filesystem_path = os.path.join(self._filesystem_path, name)
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if os.path.exists(filesystem_path):
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os.remove(filesystem_path)
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@property
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def text(self):
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components = (
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ical.Timezone, ical.Event, ical.Todo, ical.Journal, ical.Card)
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items = {}
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try:
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filenames = os.listdir(self._filesystem_path)
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except (OSError, IOError) as e:
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log.LOGGER.info(
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'Error while reading collection %r: %r' % (
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self._filesystem_path, e))
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return ""
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for filename in filenames:
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path = os.path.join(self._filesystem_path, filename)
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try:
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with filesystem.open(path) as fd:
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items.update(self._parse(fd.read(), components))
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except (OSError, IOError) as e:
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log.LOGGER.warning(
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'Error while reading item %r: %r' % (path, e))
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return ical.serialize(
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self.tag, self.headers, sorted(items.values(), key=lambda x: x.name))
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@classmethod
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def is_node(cls, path):
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filesystem_path = pathutils.path_to_filesystem(path, filesystem.FOLDER)
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return (
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os.path.isdir(filesystem_path) and
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not os.path.exists(filesystem_path + ".props"))
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@classmethod
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def is_leaf(cls, path):
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filesystem_path = pathutils.path_to_filesystem(path, filesystem.FOLDER)
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return (
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os.path.isdir(filesystem_path) and os.path.exists(path + ".props"))
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@property
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def last_modified(self):
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last = max([
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os.path.getmtime(os.path.join(self._filesystem_path, filename))
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for filename in os.listdir(self._filesystem_path)] or [0])
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return time.strftime("%a, %d %b %Y %H:%M:%S +0000", time.gmtime(last))
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@property
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@contextmanager
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def props(self):
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# On enter
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properties = {}
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if os.path.exists(self._props_path):
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with open(self._props_path) as prop_file:
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properties.update(json.load(prop_file))
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old_properties = properties.copy()
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yield properties
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# On exit
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if os.path.exists(self._props_path):
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self._create_dirs()
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if old_properties != properties:
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with open(self._props_path, "w") as prop_file:
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json.dump(properties, prop_file)
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