rabbit.util
Class SimpleUserHandler

java.lang.Object
  rabbit.util.SimpleUserHandler

public class SimpleUserHandler
extends java.lang.Object

This is a class that handles users authentication using a simple text file.

Author:

Robert Olofsson

Constructor Summary

SimpleUserHandler()

Method Summary

java.util.Map<java.lang.String,java.lang.String>	getUsers() Return the hash of users.
boolean	isValidUser(java.lang.String username, java.lang.String password) Check if a user/password combination is valid.
java.util.Map<java.lang.String,java.lang.String>	loadUsers(java.io.Reader r) Load the users from the given Reader.
void	saveUsers(java.io.Reader r) Saves the users from the given Reader.
void	setFile(java.lang.String userFile) Set the file to use for users, will read the files.
void	setUsers(java.util.Map<java.lang.String,java.lang.String> users) Set the usernames and passwords to use for authentication.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SimpleUserHandler

public SimpleUserHandler()

Method Detail

setFile

public void setFile(java.lang.String userFile)

Set the file to use for users, will read the files. Will discard any previous loaded users.

Parameters:

userFile - the filename to read the users from.

loadUsers

public java.util.Map<java.lang.String,java.lang.String> loadUsers(java.io.Reader r)
                                                           throws java.io.IOException

Load the users from the given Reader.

Parameters:

r - the Reader with the users.

Returns:

a Map with usernames and passwords

Throws:

java.io.IOException - if reading the users fail

saveUsers

public void saveUsers(java.io.Reader r)
               throws java.io.IOException

Saves the users from the given Reader.

Parameters:

r - the Reader with the users.

Throws:

java.io.IOException - if reading the users fail if writing users fails

getUsers

public java.util.Map<java.lang.String,java.lang.String> getUsers()

Return the hash of users.

Returns:

the Map of usernames to passwords

setUsers

public void setUsers(java.util.Map<java.lang.String,java.lang.String> users)

Set the usernames and passwords to use for authentication.

Parameters:

users - the new set of usernames and passwords

isValidUser

public boolean isValidUser(java.lang.String username,
                           java.lang.String password)

Check if a user/password combination is valid.

Parameters:

username - the username.

password - the decrypted password.

Returns:

true if both username and password match a valid user.