org.ow2.bonita.identity.auth.PropertiesBasedAuthenticationService Maven / Gradle / Ivy

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/**
 * Copyright (C) 2007  Bull S. A. S.
 * Bull, Rue Jean Jaures, B.P.68, 78340, Les Clayes-sous-Bois
 * This library 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
 * version 2.1 of the License.
 * This library 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 this
 * program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
 * Floor, Boston, MA  02110-1301, USA.
 **/
package org.ow2.bonita.identity.auth;

import java.io.IOException;
import java.util.Collection;
import java.util.Iterator;
import java.util.Properties;

import javax.management.InstanceNotFoundException;
import javax.management.MBeanException;
import javax.management.MalformedObjectNameException;
import javax.management.ReflectionException;

import org.ow2.bonita.identity.IdentityServiceMBean;
import org.ow2.bonita.identity.IdentityServiceOp;
import org.ow2.bonita.identity.UserNotFoundException;
import org.ow2.bonita.identity.UserOp;
import org.ow2.bonita.util.Misc;

/**
 * {@link AuthenticationServiceOp} implementation that uses specific properties
 * stored in an {@link IdentityServiceOp} for authentication purpose.
 * 
 * @see #authenticateUser(String...)
 * 
 * @author "Pierre Vigneras"
 * @date Dec 14, 2007
 */
public class PropertiesBasedAuthenticationService implements
    AuthenticationServiceOp {
  /**
   * Property key for which the user name is supposed to be stored in
   * IdentityServiceOp UserOp. Value for this key is "Name"
   */
  public static final String NAME_KEY = "Name";

  /**
   * Property key for which the password is supposed to be stored in
   * IdentityServiceOp UserOp. Value for this key is "Password"
   */
  public static final String PASSWORD_KEY = "Password";

  private final IdentityServiceMBean idService;

  public PropertiesBasedAuthenticationService(final String jmxUrl,
      final String idServiceBindingName) throws MalformedObjectNameException,
      InstanceNotFoundException, MBeanException,
      ReflectionException, IOException {
    this.idService = Misc.getMBeanProxy(IdentityServiceMBean.class, jmxUrl,
        idServiceBindingName);
  }

  /**
   * Properties based {@link AuthenticationServiceOp} implementation.
   * 
   * When invoked, this method search for the first user registered into the
   * related {@link IdentityServiceOp} implementation that has the property as a
   * property set for the key {@link #NAME_KEY} set to params[0]
   * and the property {@link #PASSWORD_KEY} set to params[1].
   * 
   * @see #NAME_KEY
   * @see #PASSWORD_KEY
   * @see AuthenticationServiceOp#authenticateUser(String...)
   * @see IdentityServiceOp
   * 
   */
  public String authenticateUser(String... params) {
    if (params.length != 2) {
      throw new IllegalArgumentException(
          "Two parameters are required: name and password in that order!");
    }
    final String name = params[0];
    final String password = params[1];

    final Collection users = idService.getAllUsers();
    final Iterator i = users.iterator();
    while (i.hasNext()) {
      final String id = i.next();
      try {
        final UserOp user = idService.getUser(id);
        final Properties properties = user.getProperties();
        if (name.equals(properties.getProperty(NAME_KEY))
            && password.equals(properties.getProperty(PASSWORD_KEY))) {
          return user.getId();
        }
      } catch (UserNotFoundException unfe) {
        throw new RuntimeException("The user with id: " + id
            + " cannot be found! Concurrent access?", unfe);
      }
    }
    return null;
  }
}