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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 _SASLCOOKIEMECHANISM_H_
     29 #define _SASLCOOKIEMECHANISM_H_
     30 
     31 #include "talk/xmllite/qname.h"
     32 #include "talk/xmllite/xmlelement.h"
     33 #include "talk/xmpp/saslmechanism.h"
     34 #include "talk/xmpp/constants.h"
     35 
     36 namespace buzz {
     37 
     38 class SaslCookieMechanism : public SaslMechanism {
     39 
     40 public:
     41   SaslCookieMechanism(const std::string & mechanism,
     42                       const std::string & username,
     43                       const std::string & cookie,
     44                       const std::string & token_service)
     45     : mechanism_(mechanism),
     46       username_(username),
     47       cookie_(cookie),
     48       token_service_(token_service) {}
     49 
     50   SaslCookieMechanism(const std::string & mechanism,
     51                       const std::string & username,
     52                       const std::string & cookie)
     53     : mechanism_(mechanism),
     54       username_(username),
     55       cookie_(cookie),
     56       token_service_("") {}
     57 
     58   virtual std::string GetMechanismName() { return mechanism_; }
     59 
     60   virtual XmlElement * StartSaslAuth() {
     61     // send initial request
     62     XmlElement * el = new XmlElement(QN_SASL_AUTH, true);
     63     el->AddAttr(QN_MECHANISM, mechanism_);
     64     if (!token_service_.empty()) {
     65       el->AddAttr(
     66           QName(true, "http://www.google.com/talk/protocol/auth", "service"),
     67           token_service_);
     68     }
     69 
     70     std::string credential;
     71     credential.append("\0", 1);
     72     credential.append(username_);
     73     credential.append("\0", 1);
     74     credential.append(cookie_);
     75     el->AddText(Base64Encode(credential));
     76     return el;
     77   }
     78 
     79 private:
     80   std::string mechanism_;
     81   std::string username_;
     82   std::string cookie_;
     83   std::string token_service_;
     84 };
     85 
     86 }
     87 
     88 #endif
     89