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/*
* Copyright (c) 2001-2007 Sun Microsystems, Inc. All rights reserved.
*
* The Sun Project JXTA(TM) Software License
*
* 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 end-user documentation included with the redistribution, if any, must
* include the following acknowledgment: "This product includes software
* developed by Sun Microsystems, Inc. for JXTA(TM) technology."
* Alternately, this acknowledgment may appear in the software itself, if
* and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Sun", "Sun Microsystems, Inc.", "JXTA" and "Project JXTA" must
* not be used to endorse or promote products derived from this software
* without prior written permission. For written permission, please contact
* Project JXTA at http://www.jxta.org.
*
* 5. Products derived from this software may not be called "JXTA", nor may
* "JXTA" appear in their name, without prior written permission of Sun.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 SUN
* MICROSYSTEMS OR ITS CONTRIBUTORS 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.
*
* JXTA is a registered trademark of Sun Microsystems, Inc. in the United
* States and other countries.
*
* Please see the license information page at :
* for instructions on use of
* the license in source files.
*
* ====================================================================
*
* This software consists of voluntary contributions made by many individuals
* on behalf of Project JXTA. For more information on Project JXTA, please see
* http://www.jxta.org.
*
* This license is based on the BSD license adopted by the Apache Foundation.
*/
package net.jxta.credential;
import net.jxta.document.MimeMediaType;
import net.jxta.document.StructuredDocument;
import net.jxta.id.ID;
import net.jxta.service.Service;
/**
* Credentials provide the basic mechanisms for securely establishing and
* communicating identity within JXTA. Credentials have three different roles
* within JXTA:
*
*
*
Authentication credentials are associated with authentication methods
* and are used to provide information required for authentication. Each
* {@link net.jxta.credential.AuthenticationCredential AuthenticationCredential}
* implementation is specific to its associated
* {@link net.jxta.membership.Authenticator Authenticator}. Authentication
* Credentials are normally created by constructing a document which follows
* a schema provided by the authentication method.
*
*
Identity credentials associate an identity with a peer. The peer may
* request operations to be performed using that identity. Identity Credentials
* are created by successfully completing authentication with a Membership
* Service.
*
*
Privileged operations associate an operation with an identity. To
* request a remote peer to perform some operation an application or service
* provides a {@link net.jxta.credential.PrivilegedOperation} and an
* identity credential along with the request. The remote peer determines if
* the operation is permitted for the specified identity and if it is permitted,
* completes the operation.
*
*
* The XML representation of a Credential uses the following very simple
* schema. Credential implementations extend this schema as needed.
*
*
*/
public interface Credential {
/**
* Returns the peerGroupID associated with this credential.
*
* @return The peerGroupID associated with this credential.
*/
public ID getPeerGroupID();
/**
* Returns the peerID associated with this credential.
*
* @return The peerID associated with this credential.
*/
public ID getPeerID();
/**
* Returns the service which generated this credential.
*
* @return The service which generated this credential.
*/
public Service getSourceService();
/**
* Returns {@code true} if this credential is expired. Some credential
* implementations may never expire.
*
* @return {@code true} if this credential is expired, otherwise
* {@code false}.
*/
public boolean isExpired();
/**
* Returns {@code true} if this credential is currently valid.
*
* @return {@code true} if the credential is currently valid, otherwise
* {@code false}.
*/
public boolean isValid();
/**
* Returns the subject of this credential. The Objects returned must
* support {@link Object#equals(Object)} and {@link Object#hashCode()}.
*
* @return The subject of the credential as an abstract object.
*/
public Object getSubject();
/**
* Write credential into a document. asMimeType is a mime
* media-type specification and provides the form of the document which is
* being requested. Two standard document forms are defined.
* "{@code text/plain}" encodes the document in a "pretty-print" format
* for human viewing and "{@code text/xml}" which provides an XML format.
*
* Depending on the credential format this document may be
* cryptographically signed to prevent alteration.
*
* @param asMimeType MimeMediaType format representation requested
* @return The credential serialized to a Document.
* @throws Exception if an error occurs
*/
public StructuredDocument getDocument(MimeMediaType asMimeType) throws Exception;
}
