Remove third_party/twisted_8_1

third_party/twisted_8_1/twisted/cred/pamauth.py

-# Copyright (c) 2001-2008 Twisted Matrix Laboratories.
-# See LICENSE for details.
-
-"""
-Support for asynchronously authenticating using PAM.
-"""
-
-
-import PAM
-
-import getpass, threading, os
-
-from twisted.internet import threads, defer
-
-def pamAuthenticateThread(service, user, conv):
-    def _conv(items):
-        from twisted.internet import reactor
-        try:
-            d = conv(items)
-        except:
-            import traceback
-            traceback.print_exc()
-            return
-        ev = threading.Event()
-        def cb(r):
-            ev.r = (1, r)
-            ev.set()
-        def eb(e):
-            ev.r = (0, e)
-            ev.set()
-        reactor.callFromThread(d.addCallbacks, cb, eb)
-        ev.wait()
-        done = ev.r
-        if done[0]:
-            return done[1]
-        else:
-            raise done[1].type, done[1].value
-
-    return callIntoPAM(service, user, _conv)
-
-def callIntoPAM(service, user, conv):
-    """A testing hook.
-    """
-    pam = PAM.pam()
-    pam.start(service)
-    pam.set_item(PAM.PAM_USER, user)
-    pam.set_item(PAM.PAM_CONV, conv)
-    gid = os.getegid()
-    uid = os.geteuid()
-    os.setegid(0)
-    os.seteuid(0)
-    try:
-        pam.authenticate() # these will raise
-        pam.acct_mgmt()
-        return 1
-    finally:
-        os.setegid(gid)
-        os.seteuid(uid)
-
-def defConv(items):
-    resp = []
-    for i in range(len(items)):
-        message, kind = items[i]
-        if kind == 1: # password
-            p = getpass.getpass(message)
-            resp.append((p, 0))
-        elif kind == 2: # text
-            p = raw_input(message)
-            resp.append((p, 0))
-        elif kind in (3,4):
-            print message
-            resp.append(("", 0))
-        else:
-            return defer.fail('foo')
-    d = defer.succeed(resp)
-    return d
-
-def pamAuthenticate(service, user, conv):
-    return threads.deferToThread(pamAuthenticateThread, service, user, conv)