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t-signers.py
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t-signers.py
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#!/usr/bin/env python
# Copyright (C) 2016 g10 Code GmbH
#
# This file is part of GPGME.
#
# GPGME 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.
#
# GPGME 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 Lesser General
# Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this program; if not, see <http://www.gnu.org/licenses/>.
from __future__ import absolute_import, print_function, unicode_literals
del absolute_import, print_function, unicode_literals
import gpg
import support
def fail(msg):
raise RuntimeError(msg)
def check_result(r, typ):
if r.invalid_signers:
fail("Invalid signer found: {}".format(r.invalid_signers.fpr))
if len(r.signatures) != 2:
fail("Unexpected number of signatures created")
for signature in r.signatures:
if signature.type != typ:
fail("Wrong type of signature created")
if signature.pubkey_algo != gpg.constants.pk.DSA:
fail("Wrong pubkey algorithm reported: {}".format(
signature.pubkey_algo))
if signature.hash_algo != gpg.constants.md.SHA1:
fail("Wrong hash algorithm reported: {}".format(
signature.hash_algo))
if signature.sig_class != 1:
fail("Wrong signature class reported: got {}, want {}".format(
signature.sig_class, 1))
if signature.fpr not in ("A0FF4590BB6122EDEF6E3C542D727CC768697734",
"23FD347A419429BACCD5E72D6BC4778054ACD246"):
fail("Wrong fingerprint reported: {}".format(signature.fpr))
c = gpg.Context()
c.set_textmode(True)
c.set_armor(True)
keys = []
c.op_keylist_start('', True)
keys.append(c.op_keylist_next())
keys.append(c.op_keylist_next())
c.op_keylist_end()
c.signers_add(keys[0])
c.signers_add(keys[1])
for mode in (gpg.constants.sig.mode.NORMAL, gpg.constants.sig.mode.DETACH,
gpg.constants.sig.mode.CLEAR):
source = gpg.Data("Hallo Leute\n")
sink = gpg.Data()
c.op_sign(source, sink, mode)
result = c.op_sign_result()
check_result(result, mode)
support.print_data(sink)
# Idiomatic interface.
with gpg.Context(armor=True, textmode=True, signers=keys) as c:
message = "Hallo Leute\n".encode()
signed, result = c.sign(message)
check_result(result, gpg.constants.sig.mode.NORMAL)
assert signed.find(b'BEGIN PGP MESSAGE') > 0, 'Message not found'
signed, result = c.sign(message, mode=gpg.constants.sig.mode.DETACH)
check_result(result, gpg.constants.sig.mode.DETACH)
assert signed.find(b'BEGIN PGP SIGNATURE') > 0, 'Signature not found'
signed, result = c.sign(message, mode=gpg.constants.sig.mode.CLEAR)
check_result(result, gpg.constants.sig.mode.CLEAR)
assert signed.find(b'BEGIN PGP SIGNED MESSAGE') > 0, 'Message not found'
assert signed.find(message) > 0, 'Message content not found'
assert signed.find(b'BEGIN PGP SIGNATURE') > 0, 'Signature not found'

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