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1 | # -*-pyrex-*- |
2 | # |
3 | # $Id$ |
4 | # |
5 | # Ident client |
6 | # |
7 | # (c) 2005 Straylight/Edgeware |
8 | # |
9 | |
10 | #----- Licensing notice ----------------------------------------------------- |
11 | # |
12 | # This file is part of the Python interface to mLib. |
13 | # |
14 | # mLib/Python is free software; you can redistribute it and/or modify |
15 | # it under the terms of the GNU General Public License as published by |
16 | # the Free Software Foundation; either version 2 of the License, or |
17 | # (at your option) any later version. |
18 | # |
19 | # mLib/Python is distributed in the hope that it will be useful, |
20 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
21 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
22 | # GNU General Public License for more details. |
23 | # |
24 | # You should have received a copy of the GNU General Public License |
25 | # along with mLib/Python; if not, write to the Free Software Foundation, |
26 | # Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
27 | |
28 | import socket |
29 | |
30 | cdef _inaddr_frompy(sockaddr_in *sin, addr): |
31 | cdef int port |
32 | if len(addr) != 2: |
33 | raise TypeError, 'want address/port pair' |
34 | a = addr[0] |
35 | if not inet_aton(a, &sin.sin_addr): |
36 | raise TypeError, 'bad IP address' |
37 | port = addr[1] |
38 | if not (0 <= port < 65536): |
39 | raise TypeError, 'port number out of range' |
40 | sin.sin_port = htons(port) |
41 | |
42 | cdef _inaddr_topy(sockaddr_in *sin): |
43 | return inet_ntoa(sin.sin_addr), ntohs(sin.sin_port) |
44 | |
45 | cdef class SelIdentify: |
46 | cdef ident_request irq |
47 | cdef int _activep |
48 | cdef readonly localaddr |
49 | cdef readonly remoteaddr |
50 | cdef _user |
51 | cdef _bad |
52 | cdef _error |
53 | cdef _failed |
54 | cdef _bogus |
55 | def __new__(me, sk, |
56 | userproc = None, bogusproc = None, |
57 | badproc = None, errorproc = None, failedproc = None, |
58 | *hunoz, **hukairz): |
59 | cdef sockaddr_in s_in, s_out |
60 | cdef size_t sz_in, sz_out |
61 | cdef int fd |
62 | if PyObject_TypeCheck(sk, socket.SocketType): |
63 | fd = sk.fileno() |
64 | sz_in = PSIZEOF(&s_in) |
65 | sz_out = PSIZEOF(&s_out) |
66 | if getsockname(fd, <sockaddr *>&s_in, &sz_in) or \ |
67 | getpeername(fd, <sockaddr *>&s_out, &sz_out): |
68 | _oserror() |
69 | if s_in.sin_family != AF_INET or s_out.sin_family != AF_INET: |
70 | raise TypeError, 'must be internet socket' |
71 | elif len(sk) != 2: |
72 | raise TypeError, 'want pair of addresses' |
73 | else: |
74 | _inaddr_frompy(&s_in, sk[0]) |
75 | _inaddr_frompy(&s_out, sk[1]) |
76 | ident(&me.irq, &_sel, &s_in, &s_out, _identfunc, <void *>me) |
77 | me.localaddr = _inaddr_topy(&s_in) |
78 | me.remoteaddr = _inaddr_topy(&s_out) |
79 | me._activep = 1 |
80 | me._user = _checkcallable(userproc, 'user proc') |
81 | me._bad = _checkcallable(badproc, 'bad proc') |
82 | me._error = _checkcallable(errorproc, 'error proc') |
83 | me._failed = _checkcallable(failedproc, 'failed proc') |
84 | me._bogus = _checkcallable(bogusproc, 'bogus proc') |
85 | def __dealloc__(me): |
86 | if me._activep: |
87 | ident_abort(&me.irq) |
88 | property activep: |
89 | def __get__(me): |
90 | return _tobool(me._activep) |
91 | property userproc: |
92 | def __get__(me): |
93 | return me._user |
94 | def __set__(me, proc): |
95 | me._user = _checkcallable(proc, 'user proc') |
96 | def __del__(me): |
97 | me._user = None |
98 | property eofproc: |
99 | def __get__(me): |
100 | return me._eof |
101 | def __set__(me, proc): |
102 | me._eof = _checkcallable(proc, 'eof proc') |
103 | def __del__(me): |
104 | me._eof = None |
105 | property badproc: |
106 | def __get__(me): |
107 | return me._bad |
108 | def __set__(me, proc): |
109 | me._bad = _checkcallable(proc, 'bad proc') |
110 | def __del__(me): |
111 | me._bad = None |
112 | property errorproc: |
113 | def __get__(me): |
114 | return me._error |
115 | def __set__(me, proc): |
116 | me._error = _checkcallable(proc, 'error proc') |
117 | def __del__(me): |
118 | me._error = None |
119 | property failedproc: |
120 | def __get__(me): |
121 | return me._failed |
122 | def __set__(me, proc): |
123 | me._failed = _checkcallable(proc, 'failed proc') |
124 | def __del__(me): |
125 | me._failed = None |
126 | property bogusproc: |
127 | def __get__(me): |
128 | return me._bogus |
129 | def __set__(me, proc): |
130 | me._bogus = _checkcallable(proc, 'bogus proc') |
131 | def __del__(me): |
132 | me._bogus = None |
133 | def kill(me): |
134 | if not me._activep: |
135 | raise ValueError, 'already disabled' |
136 | ident_abort(&me.irq) |
137 | me._dead() |
138 | def _dead(me): |
139 | me._activep = 0 |
140 | me.dead() |
141 | def dead(me): |
142 | pass |
143 | def user(me, os, user): |
144 | return _maybecall(me._user, (os, user)) |
145 | def bad(me): |
146 | if me._bad is not None: |
147 | return me._bad() |
148 | return me.bogus() |
149 | def error(me, error): |
150 | if me._error is not None: |
151 | return me._error(error) |
152 | return me.bogus() |
153 | def failed(me, errno, strerror): |
154 | if me._failed is not None: |
155 | return me._failed(errno, strerror) |
156 | return me.bogus() |
157 | def bogus(me): |
158 | return _maybecall(me._bogus, ()) |
159 | |
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160 | cdef void _identfunc(ident_reply *i, void *arg): |
579d0169 |
161 | cdef SelIdentify id |
162 | id = <SelIdentify>arg |
163 | id._dead() |
164 | if i.type == IDENT_BAD: |
165 | id.bad() |
166 | elif i.type == IDENT_ERROR: |
167 | id.error(i.u.error) |
168 | elif i.type == IDENT_USERID: |
169 | id.user(i.u.userid.os, i.u.userid.user) |
170 | |
171 | #----- That's all, folks ---------------------------------------------------- |