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# 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, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
__copyright__ = 'Copyright (C) 2008 Daniel Schierbeck'
__author__ = 'Daniel Schierbeck <daniel.schierbeck@gmail.com>'
import dbus
BUS_NAME = 'org.gnome.seahorse'
CRYPTO_INTERFACE = 'org.gnome.seahorse.CryptoService'
CRYPTO_PATH = '/org/gnome/seahorse/crypto'
OPENPGP_INTERFACE = 'org.gnome.seahorse.Keys'
OPENPGP_PATH = '/org/gnome/seahorse/keys/openpgp'
KEY_TYPE_OPENPGP = 'openpgp'
KEY_TYPE_SSH = 'ssh'
try:
bus = dbus.SessionBus()
crypto = dbus.Interface(bus.get_object(BUS_NAME, CRYPTO_PATH),
CRYPTO_INTERFACE)
openpgp = dbus.Interface(bus.get_object(BUS_NAME, OPENPGP_PATH),
OPENPGP_INTERFACE)
except dbus.exceptions.DBusException, e:
get_name = getattr(e, 'get_dbus_name', None)
if get_name is not None:
name = get_name()
else:
name = getattr(e, '_dbus_error_name', None)
if name is None:
args = getattr(e, 'args', None) # This is case for old python-dbus-0.62
if args == ("Unable to determine the address of the message bus (try 'man dbus-launch' and 'man dbus-daemon' for help)",):
raise ImportError
# DBus sometimes fails like this, just treat it as if seahorse is not
# available rather than crashing.
if name in ("org.freedesktop.DBus.Error.Spawn.ExecFailed",
"org.freedesktop.DBus.Error.ServiceUnknown",
"org.freedesktop.DBus.Error.NotSupported"):
raise ImportError
else:
raise
FLAG_VALID = 0x0001
FLAG_CAN_ENCRYPT = 0x0002
FLAG_CAN_SIGN = 0x0004
FLAG_EXPIRED = 0x0100
FLAG_REVOKED = 0x0200
FLAG_DISABLED = 0x0400
FLAG_TRUSTED = 0x1000
TRUST_NEVER = -1
TRUST_UNKNOWN = 0
TRUST_MARGINAL = 1
TRUST_FULL = 5
TRUST_ULTIMATE = 10
LOCATION_MISSING = 10
LOCATION_SEARCHING = 20
LOCATION_REMOTE = 50
LOCATION_LOCAL = 100
keyset = dict()
def verify(crypttext):
(cleartext, key) = crypto.VerifyText(KEY_TYPE_OPENPGP, 1, crypttext)
if key != "":
if key not in keyset:
keyset[key] = Key(key)
return (cleartext, keyset[key])
return (cleartext, None)
class Key:
def __init__(self, key):
self.key = key
(keys, unmatched) = openpgp.MatchKeys([self.get_id()], 0x00000010)
self.available = (key in keys)
if self.available:
fields = openpgp.GetKeyFields(key, ['fingerprint', 'trust', 'flags', 'display-name', 'location'])
else:
fields = dict()
self.fingerprint = fields.get('fingerprint', 'N/A')
self.trust = fields.get('trust', TRUST_UNKNOWN)
self.flags = fields.get('flags', 0)
self.display_name = fields.get('display-name', '')
self.location = fields.get('location', LOCATION_MISSING)
def get_flags(self):
return self.flags
def get_display_name(self):
return self.display_name
def get_id(self):
return self.key.split(':')[1][8:]
def get_fingerprint(self):
return self.fingerprint
def get_trust(self):
return self.trust
def get_location(self):
return self.location
def is_available(self):
return self.available
def is_trusted(self):
return self.flags & FLAG_TRUSTED != 0
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