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# Copyright (C) 2004 Igor Belyi <belyi@users.sourceforge.net>
# Copyright (C) 2002 John Goerzen <jgoerzen@complete.org>
#
# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
from __future__ import absolute_import, print_function, unicode_literals
del absolute_import, print_function, unicode_literals
from . import gpgme
from . import util
# To appease static analysis tools, we define some constants here.
# They are overwritten with the proper values by process_constants.
NO_ERROR = None
EOF = None
util.process_constants('GPG_ERR_', globals())
class PymeError(Exception):
pass
class GPGMEError(PymeError):
def __init__(self, error = None, message = None):
self.error = error
self.message = message
@classmethod
def fromSyserror(cls):
return cls(gpgme.gpgme_err_code_from_syserror())
def getstring(self):
message = "%s: %s" % (gpgme.gpgme_strsource(self.error),
gpgme.gpgme_strerror(self.error))
if self.message != None:
message = "%s: %s" % (self.message, message)
return message
def getcode(self):
return gpgme.gpgme_err_code(self.error)
def getsource(self):
return gpgme.gpgme_err_source(self.error)
def __str__(self):
return self.getstring()
def errorcheck(retval, extradata = None):
if retval:
raise GPGMEError(retval, extradata)
class KeyNotFound(GPGMEError, KeyError):
"""Raised if a key was not found
GPGME indicates this condition with EOF, which is not very
idiomatic. We raise this error that is both a GPGMEError
indicating EOF, and a KeyError.
"""
def __init__(self, keystr):
self.keystr = keystr
GPGMEError.__init__(self, EOF)
def __str__(self):
return self.keystr
# These errors are raised in the idiomatic interface code.
class EncryptionError(PymeError):
pass
class InvalidRecipients(EncryptionError):
def __init__(self, recipients):
self.recipients = recipients
def __str__(self):
return ", ".join("{}: {}".format(r.fpr,
gpgme.gpgme_strerror(r.reason))
for r in self.recipients)
class DeryptionError(PymeError):
pass
class UnsupportedAlgorithm(DeryptionError):
def __init__(self, algorithm):
self.algorithm = algorithm
def __str__(self):
return self.algorithm
class SigningError(PymeError):
pass
class InvalidSigners(SigningError):
def __init__(self, signers):
self.signers = signers
def __str__(self):
return ", ".join("{}: {}".format(s.fpr,
gpgme.gpgme_strerror(s.reason))
for s in self.signers)
class VerificationError(PymeError):
pass
class BadSignatures(VerificationError):
def __init__(self, result):
self.result = result
def __str__(self):
return ", ".join("{}: {}".format(s.fpr,
gpgme.gpgme_strerror(s.status))
for s in self.result.signatures
if s.status != NO_ERROR)
class MissingSignatures(VerificationError):
def __init__(self, result, missing):
self.result = result
self.missing = missing
def __str__(self):
return ", ".join(k.subkeys[0].fpr for k in self.missing)
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