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
|
# $Id$
# Copyright (C) 2004,2008 Igor Belyi <[email protected]>
# Copyright (C) 2002 John Goerzen <[email protected]>
#
# 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 . import pygpgme
from .errors import errorcheck
def process_constants(starttext, dict):
"""Called by the constant libraries to load up the appropriate constants
from the C library."""
index = len(starttext)
for identifier in dir(pygpgme):
if not identifier.startswith(starttext):
continue
name = identifier[index:]
dict[name] = getattr(pygpgme, identifier)
class GpgmeWrapper(object):
"""Base class all Pyme wrappers for GPGME functionality. Not to be
instantiated directly."""
def __repr__(self):
return '<instance of %s.%s with GPG object at %s>' % \
(__name__, self.__class__.__name__,
self.wrapped)
def __str__(self):
return repr(self)
def __hash__(self):
return hash(repr(self.wrapped))
def __eq__(self, other):
if other == None:
return False
else:
return repr(self.wrapped) == repr(other.wrapped)
def _getctype(self):
"""Must be implemented by child classes.
Must return the name of the c type."""
raise NotImplementedError()
def _getnameprepend(self):
"""Must be implemented by child classes.
Must return the prefix of all c functions mapped to methods of
this class."""
raise NotImplementedError()
def _errorcheck(self, name):
"""Must be implemented by child classes.
This function must return a trueish value for all c functions
returning gpgme_error_t."""
raise NotImplementedError()
def __getattr__(self, key):
"""On-the-fly function generation."""
if key[0] == '_' or self._getnameprepend() == None:
return None
name = self._getnameprepend() + key
func = getattr(pygpgme, name)
if self._errorcheck(name):
def _funcwrap(slf, *args, **kwargs):
return errorcheck(func(slf.wrapped, *args, **kwargs),
"Invocation of " + name)
else:
def _funcwrap(slf, *args, **kwargs):
return func(slf.wrapped, *args, **kwargs)
_funcwrap.__doc__ = getattr(func, "__doc__")
# Monkey-patch the class.
setattr(self.__class__, key, _funcwrap)
# Bind the method to 'self'.
def wrapper(*args, **kwargs):
return _funcwrap(self, *args, **kwargs)
_funcwrap.__doc__ = getattr(func, "__doc__")
return wrapper
|
