bindmodesearchdatabaseauthenticationhandler.java

CAS在Tomcat中实现单点登录项目,单点登录（Single Sign On , 简称 SSO ）是目前比较流行的服务于企业业务整合的解决方案之一

/*
 * Copyright 2007 The JA-SIG Collaborative. All rights reserved. See license
 * distributed with this file and available online at
 * http://www.ja-sig.org/products/cas/overview/license/
 */
package org.jasig.cas.adaptors.jdbc;

import java.sql.Connection;
import java.sql.SQLException;

import org.jasig.cas.authentication.handler.AuthenticationException;
import org.jasig.cas.authentication.principal.UsernamePasswordCredentials;
import org.springframework.jdbc.datasource.DataSourceUtils;

/**
 * This class attempts to authenticate the user by opening a connection to the
 * database with the provided username and password. Servers are provided as a
 * Properties class with the key being the URL and the property being the type
 * of database driver needed.
 * 
 * @author Scott Battaglia
 * @author Dmitriy Kopylenko
 * @version $Revision: 42053 $ $Date: 2007-06-10 09:17:55 -0400 (Sun, 10 Jun 2007) $
 * @since 3.0
 */
public class BindModeSearchDatabaseAuthenticationHandler extends
    AbstractJdbcUsernamePasswordAuthenticationHandler {

    protected final boolean authenticateUsernamePasswordInternal(
        final UsernamePasswordCredentials credentials)
        throws AuthenticationException {
        final String username = credentials.getUsername();
        final String password = credentials.getPassword();

        try {
            final Connection c = this.getDataSource()
                .getConnection(username, password);
            DataSourceUtils.releaseConnection(c, this.getDataSource());
            return true;
        } catch (final SQLException e) {
            return false;
        }
    }
}