/*
 * libjingle
 * Copyright 2004--2005, Google Inc.
 *
 * 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 name of the author may not be used to endorse or promote products 
 *     derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _XMPPAUTH_H_
#define _XMPPAUTH_H_

#include <vector>

#include "talk/base/cryptstring.h"
#include "talk/base/sigslot.h"
#include "talk/xmpp/jid.h"
#include "talk/xmpp/saslhandler.h"
#include "talk/xmpp/prexmppauth.h"

class XmppAuth: public buzz::PreXmppAuth {
public:
  XmppAuth();
  virtual ~XmppAuth();
  
  virtual void StartPreXmppAuth(const buzz::Jid & jid,
                                const talk_base::SocketAddress & server,
                                const talk_base::CryptString & pass,
                                const std::string & auth_cookie);
 
  virtual bool IsAuthDone() { return done_; }
  virtual bool IsAuthorized() { return !error_; }
  virtual bool HadError() { return error_; }
  virtual int  GetError() { return 0; }
  virtual buzz::CaptchaChallenge GetCaptchaChallenge() {
      return buzz::CaptchaChallenge();
  }
  virtual std::string GetAuthCookie() { return auth_cookie_; }

  virtual std::string ChooseBestSaslMechanism(
      const std::vector<std::string> & mechanisms,
      bool encrypted);

  virtual buzz::SaslMechanism * CreateSaslMechanism(
      const std::string & mechanism);

private:
  buzz::Jid jid_;
  talk_base::CryptString passwd_;
  std::string auth_cookie_;
  bool done_, error_;
};

#endif
