75 lines
2.7 KiB
C
75 lines
2.7 KiB
C
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/*
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* libjingle
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* Copyright 2004--2005, Google Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _SASLMECHANISM_H_
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#define _SASLMECHANISM_H_
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#include <string>
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namespace buzz {
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class XmlElement;
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// Defines a mechnanism to do SASL authentication.
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// Subclass instances should have a self-contained way to present
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// credentials.
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class SaslMechanism {
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public:
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// Intended to be subclassed
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virtual ~SaslMechanism() {}
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// Should return the name of the SASL mechanism, e.g., "PLAIN"
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virtual std::string GetMechanismName() = 0;
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// Should generate the initial "auth" request. Default is just <auth/>.
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virtual XmlElement * StartSaslAuth();
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// Should respond to a SASL "<challenge>" request. Default is
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// to abort (for mechanisms that do not do challenge-response)
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virtual XmlElement * HandleSaslChallenge(const XmlElement * challenge);
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// Notification of a SASL "<success>". Sometimes information
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// is passed on success.
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virtual void HandleSaslSuccess(const XmlElement * success);
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// Notification of a SASL "<failure>". Sometimes information
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// for the user is passed on failure.
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virtual void HandleSaslFailure(const XmlElement * failure);
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protected:
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static std::string Base64Encode(const std::string & plain);
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static std::string Base64Decode(const std::string & encoded);
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static std::string Base64EncodeFromArray(const char * plain, size_t length);
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};
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}
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#endif
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