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# This program is free software; you can redistribute it and/or modify
# it under the terms of the (LGPL) GNU Lesser General Public License as
# published by the Free Software Foundation; either version 3 of the 
# License, or (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# GNU Library Lesser General Public License for more details at
# ( http://www.gnu.org/licenses/lgpl.html ).
# You should have received a copy of the GNU Lesser General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
# written by: Jeff Ortel ( jortel@redhat.com )

Contains classes for basic HTTP (authenticated) transport implementations.

import urllib2 as u2
from suds.transport import *
from suds.transport.http import HttpTransport
from logging import getLogger

log = getLogger(__name__)

00029 class HttpAuthenticated(HttpTransport):
    Provides basic http authentication that follows the RFC-2617 specification.
    As defined by specifications, credentials are provided to the server
    upon request (HTTP/1.0 401 Authorization Required) by the server only.
    @ivar pm: The password manager.
    @ivar handler: The authentication handler.
00038     def __init__(self, **kwargs):
        @param kwargs: Keyword arguments.
            - B{proxy} - An http proxy to be specified on requests.
                 The proxy is defined as {protocol:proxy,}
                    - type: I{dict}
                    - default: {}
            - B{timeout} - Set the url open timeout (seconds).
                    - type: I{float}
                    - default: 90
            - B{username} - The username used for http authentication.
                    - type: I{str}
                    - default: None
            - B{password} - The password used for http authentication.
                    - type: I{str}
                    - default: None
        HttpTransport.__init__(self, **kwargs)
        self.pm = u2.HTTPPasswordMgrWithDefaultRealm()
00058     def open(self, request):
        return  HttpTransport.open(self, request)
00062     def send(self, request):
        return  HttpTransport.send(self, request)
    def addcredentials(self, request):
        credentials = self.credentials()
        if not (None in credentials):
            u = credentials[0]
            p = credentials[1]
            self.pm.add_password(None, request.url, u, p)
    def credentials(self):
        return (self.options.username, self.options.password)
00076     def u2handlers(self):
            handlers = HttpTransport.u2handlers(self)
            return handlers
00082 class WindowsHttpAuthenticated(HttpAuthenticated):
    Provides Windows (NTLM) http authentication.
    @ivar pm: The password manager.
    @ivar handler: The authentication handler.
    @author: Christopher Bess
00090     def u2handlers(self):
        # try to import ntlm support  
            from ntlm import HTTPNtlmAuthHandler
        except ImportError:
            raise Exception("Cannot import python-ntlm module")
        handlers = HttpTransport.u2handlers(self)
        return handlers

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