mirror of
https://github.com/Alfresco/alfresco-community-repo.git
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git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@46677 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
219 lines
7.5 KiB
Java
219 lines
7.5 KiB
Java
/*
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* Copyright (C) 2005-2010 Alfresco Software Limited.
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*
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* This file is part of Alfresco
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*
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* Alfresco is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Alfresco is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with Alfresco. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.alfresco.repo.security.authentication;
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import java.util.Collection;
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import java.util.Set;
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import java.util.TreeSet;
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import org.alfresco.repo.management.subsystems.ActivateableBean;
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import net.sf.acegisecurity.Authentication;
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/**
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* A base class for chaining authentication components. Where appropriate, methods will 'chain' across multiple
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* {@link AuthenticationComponent} instances, as returned by {@link #getUsableAuthenticationComponents()}.
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*
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* @author dward
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*/
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public abstract class AbstractChainingAuthenticationComponent extends AbstractAuthenticationComponent
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{
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/**
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* Instantiates a new abstract chaining authentication component.
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*/
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public AbstractChainingAuthenticationComponent()
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{
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super();
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}
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/**
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* Get the authentication component with the specified name
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* @param name
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* @return the authentication component or null if it does not exist
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*/
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protected abstract AuthenticationComponent getAuthenticationComponent(String name);
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/**
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* Gets the authentication components across which methods will chain.
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*
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* @return the usable authentication components
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*/
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protected abstract Collection<AuthenticationComponent> getUsableAuthenticationComponents();
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/**
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* Chain authentication with user name and password - tries all in order until one works, or fails.
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*
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* @param userName
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* the user name
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* @param password
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* the password
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*
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* @throws AuthenticationException
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*/
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@Override
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protected void authenticateImpl(String userName, char[] password)
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{
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for (AuthenticationComponent authComponent : getUsableAuthenticationComponents())
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{
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try
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{
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authComponent.authenticate(userName, password);
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return;
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}
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catch (AuthenticationException e)
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{
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// Ignore and chain
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}
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}
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throw new AuthenticationException("Failed to authenticate");
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}
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/**
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* Test authenticate with a specific authenticator and user name and password.
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*
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* @param authenticatorName
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* the name of the authenticator to use
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* @param userName
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* the user name
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* @param password
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* the password
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* @throws AuthenticationException including diagnostic information about the failure
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*/
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public void testAuthenticate(String authenticatorName, String userName, char[] password)
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{
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AuthenticationComponent authenticationComponent = getAuthenticationComponent(authenticatorName);
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if(authenticationComponent != null)
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{
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if (authenticationComponent instanceof ActivateableBean)
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{
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if(!((ActivateableBean) authenticationComponent).isActive())
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{
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AuthenticationDiagnostic diagnostic = new AuthenticationDiagnostic();
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Object[] args = {authenticatorName};
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diagnostic.addStep(AuthenticationDiagnostic.STEP_KEY_VALIDATION_AUTHENTICATOR_NOT_ACTIVE, false, args);
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throw new AuthenticationException("authentication.err.validation.authenticator.notactive", args , diagnostic);
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}
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}
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authenticationComponent.authenticate(userName, password);
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return;
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}
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AuthenticationDiagnostic diagnostic = new AuthenticationDiagnostic();
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Object[] args = {authenticatorName};
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diagnostic.addStep(AuthenticationDiagnostic.STEP_KEY_VALIDATION_AUTHENTICATOR_NOT_FOUND, false, args);
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throw new AuthenticationException("authentication.err.validation.authenticator.notfound", args , diagnostic);
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}
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/**
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* If any implementation supports guest then guest is allowed.
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*
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* @return true, if implementation allows guest login
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*/
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@Override
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protected boolean implementationAllowsGuestLogin()
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{
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for (AuthenticationComponent authComponent : getUsableAuthenticationComponents())
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{
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if (authComponent.guestUserAuthenticationAllowed())
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{
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return true;
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}
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}
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return false;
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}
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/*
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* (non-Javadoc)
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* @see org.alfresco.repo.security.authentication.AbstractAuthenticationComponent#setCurrentUser(java.lang.String,
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* org.alfresco.repo.security.authentication.AuthenticationComponent.UserNameValidationMode)
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*/
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@Override
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public Authentication setCurrentUser(String userName, UserNameValidationMode validationMode)
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{
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for (AuthenticationComponent authComponent : getUsableAuthenticationComponents())
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{
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try
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{
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return authComponent.setCurrentUser(userName, validationMode);
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}
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catch (AuthenticationException e)
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{
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// Ignore and chain
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}
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}
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throw new AuthenticationException("Failed to set current user " + userName);
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}
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/**
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* Set the current user - try all implementations - as some may check the user exists.
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*
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* @param userName
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* the user name
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* @return the authentication
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*/
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@Override
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public Authentication setCurrentUser(String userName)
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{
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Exception last = null;
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for (AuthenticationComponent authComponent : getUsableAuthenticationComponents())
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{
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try
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{
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return authComponent.setCurrentUser(userName);
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}
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catch (AuthenticationException e)
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{
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last = e;
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}
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}
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throw new AuthenticationException("Failed to set current user " + userName, last);
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public Set<String> getDefaultAdministratorUserNames()
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{
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Set<String> defaultAdministratorUserNames = new TreeSet<String>();
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for (AuthenticationComponent authComponent : getUsableAuthenticationComponents())
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{
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defaultAdministratorUserNames.addAll(authComponent.getDefaultAdministratorUserNames());
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}
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return defaultAdministratorUserNames;
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public Set<String> getDefaultGuestUserNames()
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{
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Set<String> defaultGuestUserNames = new TreeSet<String>();
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for (AuthenticationComponent authComponent : getUsableAuthenticationComponents())
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{
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defaultGuestUserNames.addAll(authComponent.getDefaultGuestUserNames());
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}
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return defaultGuestUserNames;
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}
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} |