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-/*
- * 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 _SASLMECHANISM_H_
-#define _SASLMECHANISM_H_
-
-#include <string>
-
-namespace buzz {
-
-class XmlElement;
-
-
-// Defines a mechnanism to do SASL authentication.
-// Subclass instances should have a self-contained way to present
-// credentials.
-class SaslMechanism {
-
-public:
-
- // Intended to be subclassed
- virtual ~SaslMechanism() {}
-
- // Should return the name of the SASL mechanism, e.g., "PLAIN"
- virtual std::string GetMechanismName() = 0;
-
- // Should generate the initial "auth" request. Default is just <auth/>.
- virtual XmlElement * StartSaslAuth();
-
- // Should respond to a SASL "<challenge>" request. Default is
- // to abort (for mechanisms that do not do challenge-response)
- virtual XmlElement * HandleSaslChallenge(const XmlElement * challenge);
-
- // Notification of a SASL "<success>". Sometimes information
- // is passed on success.
- virtual void HandleSaslSuccess(const XmlElement * success);
-
- // Notification of a SASL "<failure>". Sometimes information
- // for the user is passed on failure.
- virtual void HandleSaslFailure(const XmlElement * failure);
-
-protected:
- static std::string Base64Encode(const std::string & plain);
- static std::string Base64Decode(const std::string & encoded);
- static std::string Base64EncodeFromArray(const char * plain, size_t length);
-};
-
-}
-
-#endif