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5b1830f3 MW |
1 | ### -*-pyrex-*- |
2 | ### | |
3 | ### Ident client | |
4 | ### | |
5 | ### (c) 2005 Straylight/Edgeware | |
6 | ### | |
579d0169 | 7 | |
5b1830f3 MW |
8 | ###----- Licensing notice --------------------------------------------------- |
9 | ### | |
10 | ### This file is part of the Python interface to mLib. | |
11 | ### | |
12 | ### mLib/Python is free software; you can redistribute it and/or modify | |
13 | ### it under the terms of the GNU General Public License as published by | |
14 | ### the Free Software Foundation; either version 2 of the License, or | |
15 | ### (at your option) any later version. | |
16 | ### | |
17 | ### mLib/Python is distributed in the hope that it will be useful, | |
18 | ### but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | ### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | ### GNU General Public License for more details. | |
21 | ### | |
22 | ### You should have received a copy of the GNU General Public License | |
23 | ### along with mLib/Python; if not, write to the Free Software Foundation, | |
24 | ### Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
579d0169 | 25 | |
26 | import socket | |
27 | ||
28 | cdef _inaddr_frompy(sockaddr_in *sin, addr): | |
29 | cdef int port | |
30 | if len(addr) != 2: | |
31 | raise TypeError, 'want address/port pair' | |
32 | a = addr[0] | |
33 | if not inet_aton(a, &sin.sin_addr): | |
34 | raise TypeError, 'bad IP address' | |
35 | port = addr[1] | |
36 | if not (0 <= port < 65536): | |
37 | raise TypeError, 'port number out of range' | |
38 | sin.sin_port = htons(port) | |
39 | ||
40 | cdef _inaddr_topy(sockaddr_in *sin): | |
41 | return inet_ntoa(sin.sin_addr), ntohs(sin.sin_port) | |
42 | ||
43 | cdef class SelIdentify: | |
addc0c37 MW |
44 | """ |
45 | SelIdentify(SK, [userproc = None], [bogusproc = None], | |
46 | [badproc = None], [errorproc = None],) | |
47 | ||
48 | Asynchronously enquire about remote user of socket SK. | |
49 | """ | |
579d0169 | 50 | cdef ident_request irq |
51 | cdef int _activep | |
52 | cdef readonly localaddr | |
53 | cdef readonly remoteaddr | |
54 | cdef _user | |
55 | cdef _bad | |
56 | cdef _error | |
579d0169 | 57 | cdef _bogus |
7c66d8c9 MW |
58 | def __cinit__(me, sk, userproc = None, bogusproc = None, |
59 | badproc = None, errorproc = None, *hunoz, **hukairz): | |
579d0169 | 60 | cdef sockaddr_in s_in, s_out |
78911cdb | 61 | cdef socklen_t sz_in, sz_out |
579d0169 | 62 | cdef int fd |
741f7410 | 63 | if typecheck(sk, socket.SocketType): |
579d0169 | 64 | fd = sk.fileno() |
65 | sz_in = PSIZEOF(&s_in) | |
66 | sz_out = PSIZEOF(&s_out) | |
67 | if getsockname(fd, <sockaddr *>&s_in, &sz_in) or \ | |
68 | getpeername(fd, <sockaddr *>&s_out, &sz_out): | |
69 | _oserror() | |
70 | if s_in.sin_family != AF_INET or s_out.sin_family != AF_INET: | |
71 | raise TypeError, 'must be internet socket' | |
72 | elif len(sk) != 2: | |
73 | raise TypeError, 'want pair of addresses' | |
74 | else: | |
75 | _inaddr_frompy(&s_in, sk[0]) | |
76 | _inaddr_frompy(&s_out, sk[1]) | |
77 | ident(&me.irq, &_sel, &s_in, &s_out, _identfunc, <void *>me) | |
78 | me.localaddr = _inaddr_topy(&s_in) | |
79 | me.remoteaddr = _inaddr_topy(&s_out) | |
80 | me._activep = 1 | |
81 | me._user = _checkcallable(userproc, 'user proc') | |
82 | me._bad = _checkcallable(badproc, 'bad proc') | |
83 | me._error = _checkcallable(errorproc, 'error proc') | |
579d0169 | 84 | me._bogus = _checkcallable(bogusproc, 'bogus proc') |
85 | def __dealloc__(me): | |
86 | if me._activep: | |
87 | ident_abort(&me.irq) | |
88 | property activep: | |
addc0c37 | 89 | """I.activep -> BOOL: query still in progress?""" |
579d0169 | 90 | def __get__(me): |
91 | return _tobool(me._activep) | |
92 | property userproc: | |
addc0c37 | 93 | """I.userproc -> FUNC: call FUNC(OS, USER) if server replied""" |
579d0169 | 94 | def __get__(me): |
95 | return me._user | |
96 | def __set__(me, proc): | |
97 | me._user = _checkcallable(proc, 'user proc') | |
98 | def __del__(me): | |
99 | me._user = None | |
579d0169 | 100 | property badproc: |
addc0c37 | 101 | """I.badproc -> FUNC: call FUNC() if server's reply was broken""" |
579d0169 | 102 | def __get__(me): |
103 | return me._bad | |
104 | def __set__(me, proc): | |
105 | me._bad = _checkcallable(proc, 'bad proc') | |
106 | def __del__(me): | |
107 | me._bad = None | |
108 | property errorproc: | |
addc0c37 | 109 | """I.errorproc -> FUNC: call FUNC(ERR) if server reported error""" |
579d0169 | 110 | def __get__(me): |
111 | return me._error | |
112 | def __set__(me, proc): | |
113 | me._error = _checkcallable(proc, 'error proc') | |
114 | def __del__(me): | |
115 | me._error = None | |
579d0169 | 116 | property bogusproc: |
addc0c37 | 117 | """I.bogusproc -> FUNC: call FUNC() on failure if no specific handler""" |
579d0169 | 118 | def __get__(me): |
119 | return me._bogus | |
120 | def __set__(me, proc): | |
121 | me._bogus = _checkcallable(proc, 'bogus proc') | |
122 | def __del__(me): | |
123 | me._bogus = None | |
124 | def kill(me): | |
addc0c37 | 125 | """I.kill(): cancel ident query""" |
579d0169 | 126 | if not me._activep: |
127 | raise ValueError, 'already disabled' | |
128 | ident_abort(&me.irq) | |
129 | me._dead() | |
130 | def _dead(me): | |
131 | me._activep = 0 | |
132 | me.dead() | |
133 | def dead(me): | |
addc0c37 | 134 | """I.dead(): called when operation completes or fails""" |
579d0169 | 135 | pass |
136 | def user(me, os, user): | |
addc0c37 | 137 | """I.user(OS, USER): called if server returns user name""" |
579d0169 | 138 | return _maybecall(me._user, (os, user)) |
139 | def bad(me): | |
addc0c37 | 140 | """I.bad(): called if server's reply is invalid""" |
579d0169 | 141 | if me._bad is not None: |
142 | return me._bad() | |
143 | return me.bogus() | |
144 | def error(me, error): | |
addc0c37 | 145 | """I.error(ERR): called if server returns an error""" |
579d0169 | 146 | if me._error is not None: |
147 | return me._error(error) | |
148 | return me.bogus() | |
579d0169 | 149 | def bogus(me): |
addc0c37 | 150 | """I.bogus(): called on failure if there's no more specific handler""" |
579d0169 | 151 | return _maybecall(me._bogus, ()) |
152 | ||
b51b6cf0 | 153 | cdef void _identfunc(ident_reply *i, void *arg): |
579d0169 | 154 | cdef SelIdentify id |
155 | id = <SelIdentify>arg | |
156 | id._dead() | |
157 | if i.type == IDENT_BAD: | |
158 | id.bad() | |
159 | elif i.type == IDENT_ERROR: | |
160 | id.error(i.u.error) | |
161 | elif i.type == IDENT_USERID: | |
162 | id.user(i.u.userid.os, i.u.userid.user) | |
163 | ||
5b1830f3 | 164 | ###----- That's all, folks -------------------------------------------------- |