/usr/lib/python3/dist-packages/gpgme/editutil.py is in python3-gpgme 0.3-0ubuntu3.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 | # pygpgme - a Python wrapper for the gpgme library
# Copyright (C) 2006 James Henstridge
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
"""Utilities related to editing keys.
Currently only contains a utility function for editing the owner trust
value of a key in a keyring.
"""
__metaclass__ = type
__all__ = ['edit_sign', 'edit_trust']
import functools
import os
try:
from io import BytesIO
except ImportError:
from StringIO import StringIO as BytesIO
import gpgme
def key_editor(function):
"""A decorator that lets key editor callbacks be written as generators."""
@functools.wraps(function)
def wrapper(ctx, key, *args, **kwargs):
# Start the generator and run it once.
gen = function(ctx, key, *args, **kwargs)
try:
# XXX: this is for Python 2.x compatibility.
try:
gen.__next__()
except AttributeError:
gen.next()
except StopIteration:
return
def edit_callback(status, args, fd):
if status in (gpgme.STATUS_EOF,
gpgme.STATUS_GOT_IT,
gpgme.STATUS_NEED_PASSPHRASE,
gpgme.STATUS_GOOD_PASSPHRASE,
gpgme.STATUS_BAD_PASSPHRASE,
gpgme.STATUS_USERID_HINT,
gpgme.STATUS_SIGEXPIRED,
gpgme.STATUS_KEYEXPIRED,
gpgme.STATUS_PROGRESS,
gpgme.STATUS_KEY_CREATED,
gpgme.STATUS_ALREADY_SIGNED):
return
try:
data = gen.send((status, args))
except StopIteration:
raise gpgme.error(gpgme.ERR_SOURCE_UNKNOWN, gpgme.ERR_GENERAL)
if data is not None:
os.write(fd, data.encode('ASCII'))
output = BytesIO()
try:
ctx.edit(key, edit_callback, output)
finally:
gen.close()
return wrapper
@key_editor
def edit_trust(ctx, key, trust):
"""Edit the trust level of the given key."""
if trust not in (gpgme.VALIDITY_UNDEFINED,
gpgme.VALIDITY_NEVER,
gpgme.VALIDITY_MARGINAL,
gpgme.VALIDITY_FULL,
gpgme.VALIDITY_ULTIMATE):
raise ValueError('Bad trust value %d' % trust)
status, args = yield None
assert args == 'keyedit.prompt'
status, args = yield 'trust\n'
assert args == 'edit_ownertrust.value'
status, args = yield '%d\n' % trust
if args == 'edit_ownertrust.set_ultimate.okay':
status, args = yield 'Y\n'
assert args == 'keyedit.prompt'
status, args = yield 'quit\n'
assert args == 'keyedit.save.okay'
status, args = yield 'Y\n'
@key_editor
def edit_sign(ctx, key, index=0, local=False, norevoke=False,
expire=True, check=0):
"""Sign the given key.
index: the index of the user ID to sign, starting at 1. Sign all
user IDs if set to 0.
local: make a local signature
norevoke: make a non-revokable signature
command: the type of signature. One of sign, lsign, tsign or nrsign.
expire: whether the signature should expire with the key.
check: Amount of checking performed. One of:
0 - no answer
1 - no checking
2 - casual checking
3 - careful checking
"""
if index < 0 or index > len(key.uids):
raise ValueError('user ID index out of range')
command = 'sign'
if local:
command = 'l%s' % command
if norevoke:
command = 'nr%s' % command
if check not in [0, 1, 2, 3]:
raise ValueError('check must be one of 0, 1, 2, 3')
status, args = yield None
assert args == 'keyedit.prompt'
status, args = yield 'uid %d\n' % index
assert args == 'keyedit.prompt'
status, args = yield '%s\n' % command
while args != 'keyedit.prompt':
if args == 'keyedit.sign_all.okay':
status, args = yield 'Y\n'
elif args == 'sign_uid.expire':
status, args = yield '%s\n' % ('Y' if expire else 'N')
elif args == 'sign_uid.class':
status, args = yield '%d\n' % check
elif args == 'sign_uid.okay':
status, args = yield 'Y\n'
else:
raise AssertionError("Unexpected state %r" % ((status, args),))
status, args = yield 'quit\n'
assert args == 'keyedit.save.okay'
status, args = yield 'Y\n'
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