alfresco-community-repo/source/java/org/alfresco/repo/remote/ReauthenticatingAdvice.java
Paul Holmes-Higgin cefda8c965 Updated header to LGPL
git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@18931 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
2010-03-01 22:48:39 +00:00

147 lines
3.8 KiB
Java

/*
* Copyright (C) 2005-2010 Alfresco Software Limited.
*
* This file is part of Alfresco
*
* Alfresco is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Alfresco is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
*/
package org.alfresco.repo.remote;
import org.alfresco.repo.security.authentication.AuthenticationException;
import org.alfresco.service.cmr.security.AuthenticationService;
import org.aopalliance.intercept.MethodInterceptor;
import org.aopalliance.intercept.MethodInvocation;
import org.springframework.aop.framework.ReflectiveMethodInvocation;
/**
* This is an interceptor that continuosly tries to reauthenticate when
* a method call results in an AuthenticationException.
* @author britt
*/
public class ReauthenticatingAdvice implements MethodInterceptor
{
/**
* The authentication service reference.
*/
private AuthenticationService fAuthService;
/**
* The ticket holder.
*/
private ClientTicketHolder fTicketHolder;
/**
* The user name.
*/
private String fUser;
/**
* The user's password.
*/
private String fPassword;
/**
* The time in milliseconds to wait between attempts to reauthenticate.
*/
private long fRetryInterval;
/**
* Default constructor.
*/
public ReauthenticatingAdvice()
{
super();
}
/**
* Setter.
*/
public void setAuthenticationService(AuthenticationService service)
{
fAuthService = service;
}
/**
* Setter.
*/
public void setClientTicketHolder(ClientTicketHolder ticketHolder)
{
fTicketHolder = ticketHolder;
}
/**
* Setter.
*/
public void setUser(String user)
{
fUser = user;
}
/**
* Setter.
*/
public void setPassword(String password)
{
fPassword = password;
}
/**
* Setter.
*/
public void setRetryInterval(long retryInterval)
{
fRetryInterval = retryInterval;
}
/* (non-Javadoc)
* @see org.aopalliance.intercept.MethodInterceptor#invoke(org.aopalliance.intercept.MethodInvocation)
*/
public Object invoke(MethodInvocation mi) throws Throwable
{
while (true)
{
try
{
MethodInvocation clone = ((ReflectiveMethodInvocation)mi).invocableClone();
return clone.proceed();
}
catch (AuthenticationException ae)
{
// Sleep for an interval and try again.
try
{
Thread.sleep(fRetryInterval);
}
catch (InterruptedException ie)
{
// Do nothing.
}
try
{
// Reauthenticate.
fAuthService.authenticate(fUser, fPassword.toCharArray());
String ticket = fAuthService.getCurrentTicket();
fTicketHolder.setTicket(ticket);
// Modify the ticket argument.
mi.getArguments()[0] = ticket;
}
catch (Exception e)
{
// Do nothing.
}
}
}
}
}