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exportimport.py
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#!/usr/bin/env python
#
# Copyright (C) 2016 g10 Code GmbH
# Copyright (C) 2004,2008 Igor Belyi <belyi@users.sourceforge.net>
#
# This program 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 2 of the License, or
# (at your option) any later version.
#
# This program 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 this program; if not, see <http://www.gnu.org/licenses/>.
# Sample of export and import of keys
# It uses keys for joe+gpg@example.org generated by genkey.py script
from __future__ import absolute_import, print_function, unicode_literals
import sys
import os
import gpg
del absolute_import, print_function, unicode_literals
user = "joe+gpg@example.org"
with gpg.Context(armor=True) as c, gpg.Data() as expkey:
print(" - Export %s's public keys - " % user)
c.op_export(user, 0, expkey)
# print out exported data to see how it looks in armor.
expkey.seek(0, os.SEEK_SET)
expstring = expkey.read()
if expstring:
sys.stdout.buffer.write(expstring)
else:
sys.exit("No %s's keys to export!" % user)
# delete keys to ensure that they came from our imported data. Note
# that if joe's key has private part as well we can only delete both
# of them.
with gpg.Context() as c:
# Note: We must not modify the key store during iteration,
# therefore, we explicitly make a list.
keys = list(c.keylist(user))
for k in keys:
c.op_delete(k, True)
with gpg.Context() as c:
print(" - Import exported keys - ")
c.op_import(expstring)
result = c.op_import_result()
if result:
print(result)
else:
sys.exit(" - No import result - ")

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