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      1 /*
      2  * libjingle
      3  * Copyright 2004--2005, Google Inc.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions are met:
      7  *
      8  *  1. Redistributions of source code must retain the above copyright notice,
      9  *     this list of conditions and the following disclaimer.
     10  *  2. Redistributions in binary form must reproduce the above copyright notice,
     11  *     this list of conditions and the following disclaimer in the documentation
     12  *     and/or other materials provided with the distribution.
     13  *  3. The name of the author may not be used to endorse or promote products
     14  *     derived from this software without specific prior written permission.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
     17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     18  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
     19  * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     20  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
     22  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
     23  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
     24  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
     25  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 #ifndef TALK_XMPP_XMPPAUTH_H_
     29 #define TALK_XMPP_XMPPAUTH_H_
     30 
     31 #include <vector>
     32 
     33 #include "talk/base/cryptstring.h"
     34 #include "talk/base/sigslot.h"
     35 #include "talk/xmpp/jid.h"
     36 #include "talk/xmpp/saslhandler.h"
     37 #include "talk/xmpp/prexmppauth.h"
     38 
     39 class XmppAuth: public buzz::PreXmppAuth {
     40 public:
     41   XmppAuth();
     42   virtual ~XmppAuth();
     43 
     44   // TODO: Just have one "secret" that is either pass or
     45   // token?
     46   virtual void StartPreXmppAuth(const buzz::Jid& jid,
     47                                 const talk_base::SocketAddress& server,
     48                                 const talk_base::CryptString& pass,
     49                                 const std::string& auth_mechanism,
     50                                 const std::string& auth_token);
     51 
     52   virtual bool IsAuthDone() const { return done_; }
     53   virtual bool IsAuthorized() const { return true; }
     54   virtual bool HadError() const { return false; }
     55   virtual int  GetError() const { return 0; }
     56   virtual buzz::CaptchaChallenge GetCaptchaChallenge() const {
     57       return buzz::CaptchaChallenge();
     58   }
     59   virtual std::string GetAuthMechanism() const { return auth_mechanism_; }
     60   virtual std::string GetAuthToken() const { return auth_token_; }
     61 
     62   virtual std::string ChooseBestSaslMechanism(
     63       const std::vector<std::string>& mechanisms,
     64       bool encrypted);
     65 
     66   virtual buzz::SaslMechanism * CreateSaslMechanism(
     67       const std::string& mechanism);
     68 
     69 private:
     70   buzz::Jid jid_;
     71   talk_base::CryptString passwd_;
     72   std::string auth_mechanism_;
     73   std::string auth_token_;
     74   bool done_;
     75 };
     76 
     77 #endif  // TALK_XMPP_XMPPAUTH_H_
     78 
     79