Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance. Project price only 1 $
You can buy this project and download/modify it how often you want.
/*
* 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.*;
import net.jxta.id.ID;
import net.jxta.id.IDFactory;
import net.jxta.peergroup.PeerGroup;
import net.jxta.service.Service;
import java.util.logging.Level;
import net.jxta.logging.Logging;
import java.util.logging.Logger;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.Enumeration;
/**
* Authenication credentials are used by JXTA Membership Services as the
* basis for applications for peergroup membership. The AuthenticationCredential
* provides two important pieces of inforamtion:
*
*
the authetication method being requested
*
identity information which will be provided to that authentication
* method.
*
*
* Not all authentication methods use the identity nformation.
*
* @see net.jxta.credential.Credential
* @see net.jxta.membership.MembershipService
* @see net.jxta.membership.Authenticator
*/
public final class AuthenticationCredential implements Credential {
/**
* Logger
*/
private final static transient Logger LOG = Logger.getLogger(AuthenticationCredential.class.getName());
/**
* the authentication method which will be requested when this credential is
* provided during "apply" to a peergroup membership service.
*/
private String authenticationMethod = null;
/**
* Any optional information which is required by the requested authentication method.
*/
private Element identityInfo = null;
/**
* The peergroup of this AuthenticationCredential
*/
private final PeerGroup peergroup;
/**
* Creates new AuthenticationCredential
*
* @param peergroup The peergroup context in which this
* AuthenticationCredential is created.
* @param method The authentication method which will be requested when the
* AuthentiationCredential is provided to the peergroup Membership Service.
* Authentication methods are specific to Membership services. Consult the
* Documentation for the Membership service you will be authenticating
* against in order to determine the valid method values. Every
* Membership service should support a default authentication method which
* can be specified as null.
* @param indentityInfo Optional additional information which is used by the
* authentication method or null. This information is passed to the
* authentication method during the apply operation of the Membership
* Service. Consult the documentation for the specific Membership Service
* you are using for details on how this information is used (if at all).
*/
public AuthenticationCredential(PeerGroup peergroup, String method, Element indentityInfo) {
this.peergroup = peergroup;
authenticationMethod = method;
if (null != indentityInfo) {
this.identityInfo = StructuredDocumentUtils.copyAsDocument(indentityInfo);
}
}
/**
* Creates new AuthenticationCredential
*
* @param peergroup The peergroup context in which this
* AuthenticationCredential is created.
* @param root the document containing the serialized representation of the
* AuthenticationCredential.
*/
public AuthenticationCredential(PeerGroup peergroup, Element root) {
this.peergroup = peergroup;
initialize(root);
}
/**
* {@inheritDoc}
*
* AuthenticationCredentials are created in the context of a PeerGroup
* though they are generally independant of peergroups. The intent is that
* the AuthenticationCredential will be passed to the MembershipService
* service of the same peergroup as the AuthenticationCredenitals.
*
* @return PeerGroupID associated with this AuthenticationCredential.
*/
public ID getPeerGroupID() {
return peergroup.getPeerGroupID();
}
/**
* {@inheritDoc}
*/
public ID getPeerID() {
return peergroup.getPeerID();
}
/**
* {@inheritDoc}
*/
public Service getSourceService() {
return null;
}
/**
* {@inheritDoc}
*
* AuthenticationCredential are never expired. The Authenticator will
* determine the true validity from the included identity info.
*/
public boolean isExpired() {
return false;
}
/**
* {@inheritDoc}
*
* AuthenticationCredential are always valid, the Authenticator will
* determine the true validity from the included identity info.
*/
public boolean isValid() {
return true;
}
/**
* {@inheritDoc}
*
* There is no straightforward mechansim for identifying the subject
* unfortunately.
*/
public Object getSubject() {
return null;
}
/**
* Write credential into a document. as is a mime media-type
* specification and provides the form of the document which is being
* requested. Two standard document forms are defined. "text/text" encodes
* the document in a form nice for printing out and "text/xml" which
* provides an XML format.
*
* @param as The mime media type of the encoding format being requested.
* @return the StructuredDocument which represents this credential.
* @throws Exception When errors occur.
*/
public StructuredDocument getDocument(MimeMediaType as) throws Exception {
StructuredDocument doc = StructuredDocumentFactory.newStructuredDocument(as, "jxta:Cred");
if (doc instanceof Attributable) {
((Attributable) doc).addAttribute("xmlns:jxta", "http://jxta.org");
((Attributable) doc).addAttribute("xml:space", "preserve");
((Attributable) doc).addAttribute("type", "AuthenticationCredential");
}
Element e = doc.createElement("Method", getMethod());
doc.appendChild(e);
e = doc.createElement("PeerGroupID", getPeerGroupID().toString());
doc.appendChild(e);
e = doc.createElement("PeerID", getPeerID().toString());
doc.appendChild(e);
if (null != identityInfo) {
e = doc.createElement("IdentityInfo");
doc.appendChild(e);
StructuredDocumentUtils.copyElements(doc, e, identityInfo);
}
return doc;
}
/**
* Returns the authentication method which this AuthenticationCredential
* will be requesting when it is provided to a Membership Service during the
* "Apply" operation.
*
* @return String containing the authentication method being requested.
*/
public String getMethod() {
return authenticationMethod;
}
protected void setMethod(String authenticationMethod) {
this.authenticationMethod = authenticationMethod;
}
/**
* Returns the StructuredDocument Element containing the identity information which was
* originally provided when this AuthenticationCredential was created.
*
* @return StructuredDocument Element containing the identity information which was
* originally provided when this AuthenticationCredential was created.
*/
public Element getIdentityInfo() {
return (null == identityInfo) ? null : StructuredDocumentUtils.copyAsDocument(identityInfo);
}
/**
* Process an individual element from the document.
*
* @param elem the element to be processed.
* @return true if the element was recognized, otherwise false.
*/
protected boolean handleElement(TextElement elem) {
if (elem.getName().equals("PeerGroupID")) {
try {
URI gID = new URI(elem.getTextValue());
ID pgid = IDFactory.fromURI(gID);
if (!pgid.equals(getPeerGroupID())) {
throw new IllegalArgumentException("Operation is from a different group. " + pgid + " != " + getPeerGroupID());
}
} catch (URISyntaxException badID) {
throw new IllegalArgumentException("Unusable ID in advertisement: " + elem.getTextValue());
}
return true;
}
if (elem.getName().equals("PeerID")) {
try {
URI pID = new URI(elem.getTextValue());
ID pid = IDFactory.fromURI(pID);
if (!pid.equals(getPeerID())) {
throw new IllegalArgumentException("Operation is from a different group. " + pid + " != " + getPeerID());
}
} catch (URISyntaxException badID) {
throw new IllegalArgumentException("Bad Peer ID in advertisement: " + elem.getTextValue());
} catch (ClassCastException badID) {
throw new IllegalArgumentException("Id is not a peer id: " + elem.getTextValue());
}
return true;
}
if (elem.getName().equals("Method")) {
setMethod(elem.getTextValue());
return true;
}
if (elem.getName().equals("IdentityInfo")) {
Enumeration firstChild = elem.getChildren();
if (!firstChild.hasMoreElements()) {
throw new IllegalArgumentException("Missing identity info");
}
identityInfo = StructuredDocumentUtils.copyAsDocument((Element) firstChild.nextElement());
return true;
}
// element was not handled
return false;
}
/**
* Intialize from a portion of a structured document.
*
* @param root the element
*/
protected void initialize(Element root) {
if (!TextElement.class.isInstance(root)) {
throw new IllegalArgumentException(getClass().getName() + " only supports TextElement");
}
TextElement doc = (TextElement) root;
String typedoctype = "";
if (root instanceof Attributable) {
Attribute itsType = ((Attributable) root).getAttribute("type");
if (null != itsType) {
typedoctype = itsType.getValue();
}
}
String doctype = doc.getName();
if (!"jxta:AuthenticationCredential".equals(doctype) && !"jxta:AuthenticationCredential".equals(typedoctype)) {
throw new IllegalArgumentException(
"Could not construct : " + getClass().getName() + "from doc containing a " + doctype);
}
Enumeration elements = doc.getChildren();
while (elements.hasMoreElements()) {
TextElement elem = (TextElement) elements.nextElement();
if (!handleElement(elem)) {
if (Logging.SHOW_WARNING && LOG.isLoggable(Level.WARNING)) {
LOG.warning("Unhandleded element \'" + elem.getName() + "\' in " + doc.getName());
}
}
}
// sanity check time!
// FIXME [email protected] 20030409 check things
}
}
