X-Git-Url: https://git.distorted.org.uk/~mdw/mLib-python/blobdiff_plain/20bce5e92b01cd928f26b61be78215117039c561..579d01693c86259110fe7a2c2a6f005f1bdbad5b:/ident.pyx

diff --git a/ident.pyx b/ident.pyx
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+# -*-pyrex-*-
+#
+# $Id$
+#
+# Ident client
+#
+# (c) 2005 Straylight/Edgeware
+#
+
+#----- Licensing notice -----------------------------------------------------
+#
+# This file is part of the Python interface to mLib.
+#
+# mLib/Python 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.
+# 
+# mLib/Python 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 mLib/Python; if not, write to the Free Software Foundation,
+# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+import socket
+
+cdef _inaddr_frompy(sockaddr_in *sin, addr):
+  cdef int port
+  if len(addr) != 2:
+    raise TypeError, 'want address/port pair'
+  a = addr[0]
+  if not inet_aton(a, &sin.sin_addr):
+    raise TypeError, 'bad IP address'
+  port = addr[1]
+  if not (0 <= port < 65536):
+    raise TypeError, 'port number out of range'
+  sin.sin_port = htons(port)
+
+cdef _inaddr_topy(sockaddr_in *sin):
+  return inet_ntoa(sin.sin_addr), ntohs(sin.sin_port)
+
+cdef class SelIdentify:
+  cdef ident_request irq
+  cdef int _activep
+  cdef readonly localaddr
+  cdef readonly remoteaddr
+  cdef _user
+  cdef _bad
+  cdef _error
+  cdef _failed
+  cdef _bogus
+  def __new__(me, sk,
+              userproc = None, bogusproc = None,
+              badproc = None, errorproc = None, failedproc = None,
+              *hunoz, **hukairz):
+    cdef sockaddr_in s_in, s_out
+    cdef size_t sz_in, sz_out
+    cdef int fd
+    if PyObject_TypeCheck(sk, socket.SocketType):
+      fd = sk.fileno()
+      sz_in = PSIZEOF(&s_in)
+      sz_out = PSIZEOF(&s_out)
+      if getsockname(fd, <sockaddr *>&s_in, &sz_in) or \
+         getpeername(fd, <sockaddr *>&s_out, &sz_out):
+        _oserror()
+      if s_in.sin_family != AF_INET or s_out.sin_family != AF_INET:
+        raise TypeError, 'must be internet socket'
+    elif len(sk) != 2:
+      raise TypeError, 'want pair of addresses'
+    else:
+      _inaddr_frompy(&s_in, sk[0])
+      _inaddr_frompy(&s_out, sk[1])
+    ident(&me.irq, &_sel, &s_in, &s_out, _identfunc, <void *>me)
+    me.localaddr = _inaddr_topy(&s_in)
+    me.remoteaddr = _inaddr_topy(&s_out)
+    me._activep = 1
+    me._user = _checkcallable(userproc, 'user proc')
+    me._bad = _checkcallable(badproc, 'bad proc')
+    me._error = _checkcallable(errorproc, 'error proc')
+    me._failed = _checkcallable(failedproc, 'failed proc')
+    me._bogus = _checkcallable(bogusproc, 'bogus proc')
+  def __dealloc__(me):
+    if me._activep:
+      ident_abort(&me.irq)
+  property activep:
+    def __get__(me):
+      return _tobool(me._activep)
+  property userproc:
+    def __get__(me):
+      return me._user
+    def __set__(me, proc):
+      me._user = _checkcallable(proc, 'user proc')
+    def __del__(me):
+      me._user = None
+  property eofproc:
+    def __get__(me):
+      return me._eof
+    def __set__(me, proc):
+      me._eof = _checkcallable(proc, 'eof proc')
+    def __del__(me):
+      me._eof = None
+  property badproc:
+    def __get__(me):
+      return me._bad
+    def __set__(me, proc):
+      me._bad = _checkcallable(proc, 'bad proc')
+    def __del__(me):
+      me._bad = None
+  property errorproc:
+    def __get__(me):
+      return me._error
+    def __set__(me, proc):
+      me._error = _checkcallable(proc, 'error proc')
+    def __del__(me):
+      me._error = None
+  property failedproc:
+    def __get__(me):
+      return me._failed
+    def __set__(me, proc):
+      me._failed = _checkcallable(proc, 'failed proc')
+    def __del__(me):
+      me._failed = None
+  property bogusproc:
+    def __get__(me):
+      return me._bogus
+    def __set__(me, proc):
+      me._bogus = _checkcallable(proc, 'bogus proc')
+    def __del__(me):
+      me._bogus = None
+  def kill(me):
+    if not me._activep:
+      raise ValueError, 'already disabled'
+    ident_abort(&me.irq)
+    me._dead()
+  def _dead(me):
+    me._activep = 0
+    me.dead()
+  def dead(me):
+    pass
+  def user(me, os, user):
+    return _maybecall(me._user, (os, user))
+  def bad(me):
+    if me._bad is not None:
+      return me._bad()
+    return me.bogus()
+  def error(me, error):
+    if me._error is not None:
+      return me._error(error)
+    return me.bogus()
+  def failed(me, errno, strerror):
+    if me._failed is not None:
+      return me._failed(errno, strerror)
+    return me.bogus()
+  def bogus(me):
+    return _maybecall(me._bogus, ())
+
+cdef void _identfunc(ident_reply *i, void *arg):
+  cdef SelIdentify id
+  id = <SelIdentify>arg
+  id._dead()
+  if i.type == IDENT_BAD:
+    id.bad()
+  elif i.type == IDENT_ERROR:
+    id.error(i.u.error)
+  elif i.type == IDENT_USERID:
+    id.user(i.u.userid.os, i.u.userid.user)
+
+#----- That's all, folks ----------------------------------------------------