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package org.apache.turbine.services.security;
/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2001-2003 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" and
* "Apache Turbine" must not be used to endorse or promote products
* derived from this software without prior written permission. For
* written permission, please contact apache@apache.org.
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* 5. Products derived from this software may not be called "Apache",
* "Apache Turbine", nor may "Apache" appear in their name, without
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
import java.util.List;
import org.apache.commons.configuration.Configuration;
import org.apache.torque.util.Criteria;
import org.apache.turbine.om.security.User;
import org.apache.turbine.services.InitializationException;
import org.apache.turbine.util.security.DataBackendException;
import org.apache.turbine.util.security.EntityExistsException;
import org.apache.turbine.util.security.PasswordMismatchException;
import org.apache.turbine.util.security.UnknownEntityException;
/**
* An UserManager performs {@link org.apache.turbine.om.security.User} objects
* related tasks on behalf of the
* {@link org.apache.turbine.services.security.BaseSecurityService}.
*
* The responsibilities of this class include loading data of an user from the
* storage and putting them into the
* {@link org.apache.turbine.om.security.User} objects, saving those data
* to the permanent storage, and authenticating users.
*
* @author <a href="mailto:Rafal.Krzewski@e-point.pl">Rafal Krzewski</a>
* @author <a href="mailto:hps@intermeta.de">Henning P. Schmiedehausen</a>
* @version $Id$
*/
public interface UserManager
{
/**
* Initializes the UserManager
*
* @param conf A Configuration object to init this Manager
*
* @throws InitializationException When something went wrong.
*/
void init(Configuration conf)
throws InitializationException;
/**
* Check whether a specified user's account exists.
*
* The login name is used for looking up the account.
*
* @param user The user to be checked.
* @return true if the specified account exists
* @throws DataBackendException if there was an error accessing the data
* backend.
*/
boolean accountExists(User user)
throws DataBackendException;
/**
* Check whether a specified user's account exists.
*
* The login name is used for looking up the account.
*
* @param userName The name of the user to be checked.
* @return true if the specified account exists
* @throws DataBackendException if there was an error accessing the data
* backend.
*/
boolean accountExists(String userName)
throws DataBackendException;
/**
* Retrieve a user from persistent storage using username as the
* key.
*
* @param username the name of the user.
* @return an User object.
* @throws UnknownEntityException if the user's record does not
* exist in the database.
* @throws DataBackendException if there is a problem accessing the
* storage.
*/
User retrieve(String username)
throws UnknownEntityException, DataBackendException;
/**
* Retrieve a set of users that meet the specified criteria.
*
* As the keys for the criteria, you should use the constants that
* are defined in {@link User} interface, plus the names
* of the custom attributes you added to your user representation
* in the data storage. Use verbatim names of the attributes -
* without table name prefix in case of DB implementation.
*
* @param criteria The criteria of selection.
* @return a List of users meeting the criteria.
* @throws DataBackendException if there is a problem accessing the
* storage.
* @deprecated Use retrieveList(Criteria crit)
*/
User[] retrieve(Criteria criteria) throws DataBackendException;
/**
* Retrieve a list of users that meet the specified criteria.
*
* As the keys for the criteria, you should use the constants that
* are defined in {@link User} interface, plus the names
* of the custom attributes you added to your user representation
* in the data storage. Use verbatim names of the attributes -
* without table name prefix in case of DB implementation.
*
* @param criteria The criteria of selection.
* @return a List of users meeting the criteria.
* @throws DataBackendException if there is a problem accessing the
* storage.
*/
List retrieveList(Criteria criteria)
throws DataBackendException;
/**
* Retrieve a user from persistent storage using username as the
* key, and authenticate the user. The implementation may chose
* to authenticate to the server as the user whose data is being
* retrieved.
*
* @param username the name of the user.
* @param password the user supplied password.
* @return an User object.
* @throws PasswordMismatchException if the supplied password was incorrect.
* @throws UnknownEntityException if the user's record does not
* exist in the database.
* @throws DataBackendException if there is a problem accessing the storage.
*/
User retrieve(String username, String password)
throws PasswordMismatchException, UnknownEntityException,
DataBackendException;
/**
* Save an User object to persistent storage. User's record is
* required to exist in the storage.
*
* @param user an User object to store.
* @throws UnknownEntityException if the user's record does not
* exist in the database.
* @throws DataBackendException if there is a problem accessing the storage.
*/
void store(User user)
throws UnknownEntityException, DataBackendException;
/**
* Saves User data when the session is unbound. The user account is required
* to exist in the storage.
*
* LastLogin, AccessCounter, persistent pull tools, and any data stored
* in the permData hashtable that is not mapped to a column will be saved.
*
* @exception UnknownEntityException if the user's account does not
* exist in the database.
* @exception DataBackendException if there is a problem accessing the
* storage.
*/
public void saveOnSessionUnbind(User user)
throws UnknownEntityException, DataBackendException;
/**
* Authenticate an User with the specified password. If authentication
* is successful the method returns nothing. If there are any problems,
* exception was thrown.
*
* @param user an User object to authenticate.
* @param password the user supplied password.
* @throws PasswordMismatchException if the supplied password was incorrect.
* @throws UnknownEntityException if the user's record does not
* exist in the database.
* @throws DataBackendException if there is a problem accessing the storage.
*/
void authenticate(User user, String password)
throws PasswordMismatchException, UnknownEntityException,
DataBackendException;
/**
* Creates new user account with specified attributes.
*
* @param user the object describing account to be created.
* @param initialPassword password for the new user
* @throws DataBackendException if there was an error accessing the data
* backend.
* @throws EntityExistsException if the user account already exists.
*/
void createAccount(User user, String initialPassword)
throws EntityExistsException, DataBackendException;
/**
* Removes an user account from the system.
*
* @param user the object describing the account to be removed.
* @throws DataBackendException if there was an error accessing the data
* backend.
* @throws UnknownEntityException if the user account is not present.
*/
void removeAccount(User user)
throws UnknownEntityException, DataBackendException;
/**
* Change the password for an User.
*
* @param user an User to change password for.
* @param oldPassword the current password suplied by the user.
* @param newPassword the current password requested by the user.
* @throws PasswordMismatchException if the supplied password was incorrect.
* @throws UnknownEntityException if the user's record does not
* exist in the database.
* @throws DataBackendException if there is a problem accessing the storage.
*/
void changePassword(User user, String oldPassword,
String newPassword)
throws PasswordMismatchException, UnknownEntityException,
DataBackendException;
/**
* Forcibly sets new password for an User.
*
* This is supposed by the administrator to change the forgotten or
* compromised passwords. Certain implementatations of this feature
* would require administrative level access to the authenticating
* server / program.
*
* @param user an User to change password for.
* @param password the new password.
* @throws UnknownEntityException if the user's record does not
* exist in the database.
* @throws DataBackendException if there is a problem accessing the storage.
*/
void forcePassword(User user, String password)
throws UnknownEntityException, DataBackendException;
}