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.Request; 028import org.apache.cocoon.environment.Session; 029 030import org.ametys.core.authentication.AuthenticateAction; 031import org.ametys.core.authentication.CredentialProvider; 032import org.ametys.core.authentication.LogoutCapable; 033import org.ametys.core.user.CurrentUserProvider; 034import org.ametys.core.user.UserIdentity; 035import org.ametys.runtime.plugin.component.AbstractLogEnabled; 036 037/** 038 * Provides the current user from session.<br> 039 */ 040public class AvalonCurrentUserProvider extends AbstractLogEnabled implements CurrentUserProvider, Contextualizable, ThreadSafe 041{ 042 /** Avalon context. */ 043 protected Context _context; 044 045 public void contextualize(Context context) throws ContextException 046 { 047 _context = context; 048 } 049 050 public UserIdentity getUser() 051 { 052 UserIdentity user = null; 053 054 try 055 { 056 Request request = _getRequest(); 057 user = AuthenticateAction.getUserIdentityFromSession(request); 058 } 059 catch (Exception e) 060 { 061 getLogger().info("Unable to retrieve current authenticated user", e); 062 } 063 064 if (user == null) 065 { 066 getLogger().debug("There is no current user"); 067 } 068 else 069 { 070 getLogger().debug("Providing current user as: {}", user); 071 } 072 073 return user; 074 } 075 076 private Request _getRequest() 077 { 078 Map objectModel = ContextHelper.getObjectModel(_context); 079 return ObjectModelHelper.getRequest(objectModel); 080 } 081 082 @Override 083 public void logout() throws ProcessingException 084 { 085 Map objectModel = ContextHelper.getObjectModel(_context); 086 Request request = ObjectModelHelper.getRequest(objectModel); 087 Session session = request.getSession(false); 088 089 if (session != null) 090 { 091 CredentialProvider cp = AuthenticateAction.getCredentialProviderFromSession(request); 092 093 // Invalidate session 094 session.invalidate(); 095 096 if (cp instanceof LogoutCapable) 097 { 098 // Logout process 099 ((LogoutCapable) cp).logout(); 100 } 101 } 102 } 103}