001/* 002 * Copyright 2012 Anyware Services 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016package org.ametys.plugins.core.impl.user; 017 018import java.util.Map; 019 020import org.apache.avalon.framework.context.Context; 021import org.apache.avalon.framework.context.ContextException; 022import org.apache.avalon.framework.context.Contextualizable; 023import org.apache.avalon.framework.thread.ThreadSafe; 024import org.apache.cocoon.ProcessingException; 025import org.apache.cocoon.components.ContextHelper; 026import org.apache.cocoon.environment.ObjectModelHelper; 027import org.apache.cocoon.environment.Redirector; 028import org.apache.cocoon.environment.Request; 029import org.apache.cocoon.environment.Session; 030 031import org.ametys.core.authentication.AuthenticateAction; 032import org.ametys.core.authentication.CredentialProvider; 033import org.ametys.core.authentication.LogoutCapable; 034import org.ametys.core.user.CurrentUserProvider; 035import org.ametys.core.user.UserIdentity; 036import org.ametys.runtime.plugin.component.AbstractLogEnabled; 037 038/** 039 * Provides the current user from session.<br> 040 */ 041public class AvalonCurrentUserProvider extends AbstractLogEnabled implements CurrentUserProvider, Contextualizable, ThreadSafe 042{ 043 /** Avalon context. */ 044 protected Context _context; 045 046 public void contextualize(Context context) throws ContextException 047 { 048 _context = context; 049 } 050 051 public UserIdentity getUser() 052 { 053 UserIdentity user = null; 054 055 try 056 { 057 Request request = _getRequest(); 058 user = AuthenticateAction.getUserIdentityFromSession(request); 059 } 060 catch (Exception e) 061 { 062 getLogger().info("Unable to retrieve current authenticated user", e); 063 } 064 065 if (user == null) 066 { 067 getLogger().debug("There is no current user"); 068 } 069 else 070 { 071 getLogger().debug("Providing current user as: {}", user); 072 } 073 074 return user; 075 } 076 077 private Request _getRequest() 078 { 079 Map objectModel = ContextHelper.getObjectModel(_context); 080 return ObjectModelHelper.getRequest(objectModel); 081 } 082 083 @Override 084 public void logout(Redirector redirector) throws ProcessingException 085 { 086 Map objectModel = ContextHelper.getObjectModel(_context); 087 Request request = ObjectModelHelper.getRequest(objectModel); 088 Session session = request.getSession(false); 089 090 if (session != null) 091 { 092 CredentialProvider cp = AuthenticateAction.getCredentialProviderFromSession(request); 093 094 if (cp instanceof LogoutCapable) 095 { 096 // Logout process 097 ((LogoutCapable) cp).logout(redirector); 098 } 099 100 // Invalidate session 101 session.invalidate(); 102 } 103 } 104}