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# -*- python -*-
# -*- coding: utf-8 -*-
#
# Debian Member Portfolio Service key finder module
#
# Copyright © 2009-2014 Jan Dittberner <jan@dittberner.info>
#
# This file is part of the Debian Member Portfolio Service.
#
# Debian Member Portfolio Service is free software: you can redistribute it
# and/or modify it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the License,
# or (at your option) any later version.
#
# Debian Member Portfolio Service 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 Affero
# General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
#
"""
This module provides tools for finding PGP key information from a
given keyring.
"""
import logging
import time
import sys
db = None
cachetimestamp = 0
def _get_keyring_cache():
global db, cachetimestamp
if db is None or (time.time() - cachetimestamp) > 86300:
import anydbm
import pkg_resources
import os.path
filename = pkg_resources.resource_filename(__name__,
'keyringcache')
logging.debug('reading cache data from %s', filename)
assert os.path.exists(filename) and os.path.isfile(filename)
db = anydbm.open(filename, 'r')
cachetimestamp = time.time()
return db
def _get_cached(cachekey):
cache = _get_keyring_cache()
logging.debug('cache lookup for %s', cachekey)
if cachekey in cache:
logging.debug('found entry %s', cache[cachekey])
return cache[cachekey]
return None
def getFingerprintByEmail(email):
"""
Gets the fingerprints associated with the given email address if
available.
"""
return _get_cached('fpr:email:%s' % email)
def getRealnameByEmail(email):
"""
Gets the real names associated with the given email address if
available.
"""
return _get_cached('name:email:%s' % email)
def getLoginByEmail(email):
"""
Gets the logins associated with the given email address if
available.
"""
return _get_cached('login:email:%s' % email)
def getLoginByFingerprint(fpr):
"""
Gets the login associated with the given fingerprint if available.
"""
return _get_cached('login:fpr:%s' % fpr)
def _dump_cache():
cache = _get_keyring_cache()
fprs = []
for key in cache.keys():
if key.startswith('email:fpr:'):
fpr = key.replace('email:fpr:', '')
if not fpr in fprs:
fprs.append(fpr)
for fpr in fprs:
login = getLoginByFingerprint(fpr)
email = _get_cached('email:fpr:%s' % fpr)
name = _get_cached('name:fpr:%s' % fpr)
print fpr, login, ':'
print ' ', name, email
if __name__ == '__main__':
logging.basicConfig(stream=sys.stderr, level=logging.WARNING)
_dump_cache()