#if !defined(CLIENT_AUTH_EXTENSION_HXX)
#define CLIENT_AUTH_EXTENSION_HXX

#include <time.h>

#include <time.h>

#include "resip/stack/NonceHelper.hxx"
#include "resip/stack/Symbols.hxx"
#include "resip/stack/Uri.hxx"
#include "resip/stack/MethodTypes.hxx"
#include "rutil/BaseException.hxx"
#include "rutil/Data.hxx"
#include "resip/stack/Contents.hxx"
#include "resip/stack/SecurityAttributes.hxx"

namespace resip
{

class SipMessage;
class NameAddr;
class SecurityAttributes;
class Security;

class ClientAuthExtension
{
   public:
      virtual ~ClientAuthExtension() {}
      virtual void makeChallengeResponseAuth(const SipMessage& request,
                                             const Data& username,
                                             const Data& password,
                                             const Auth& challenge,
                                             const Data& cnonce,
                                             const Data& authQop,
                                             const Data& nonceCountString,
                                             Auth& auth);      
      virtual void makeChallengeResponseAuthWithA1(const SipMessage& request,
                                                   const Data& username,
                                                   const Data& passwordHashA1,
                                                   const Auth& challenge,
                                                   const Data& cnonce,
                                                   const Data& authQop,
                                                   const Data& nonceCountString,
                                                   Auth& auth);      
      
      virtual bool algorithmAndQopSupported(const Auth& challenge);

      static void setInstance(std::unique_ptr<ClientAuthExtension> ext) noexcept;
      static ClientAuthExtension& instance() 
      {
         return *mInstance;
      }      
   protected:
      ClientAuthExtension() {}

      
      static std::unique_ptr<ClientAuthExtension> mInstance;
      
};

}

#endif

/* ====================================================================
 * The Vovida Software License, Version 1.0 
 * 
 * Copyright (c) 2000 Vovida Networks, Inc.  All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 * 
 * 3. The names "VOCAL", "Vovida Open Communication Application Library",
 *    and "Vovida Open Communication Application Library (VOCAL)" must
 *    not be used to endorse or promote products derived from this
 *    software without prior written permission. For written
 *    permission, please contact vocal@vovida.org.
 *
 * 4. Products derived from this software may not be called "VOCAL", nor
 *    may "VOCAL" appear in their name, without prior written
 *    permission of Vovida Networks, Inc.
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 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
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 * ====================================================================
 * 
 * This software consists of voluntary contributions made by Vovida
 * Networks, Inc. and many individuals on behalf of Vovida Networks,
 * Inc.  For more information on Vovida Networks, Inc., please see
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