org.apache.zookeeper.server.auth
Class DigestAuthenticationProvider

java.lang.Object
  extended by org.apache.zookeeper.server.auth.DigestAuthenticationProvider
All Implemented Interfaces:
AuthenticationProvider

public class DigestAuthenticationProvider
extends Object
implements AuthenticationProvider


Constructor Summary
DigestAuthenticationProvider()
           
 
Method Summary
static String generateDigest(String idPassword)
           
 String getScheme()
          The String used to represent this provider.
 KeeperException.Code handleAuthentication(ServerCnxn cnxn, byte[] authData)
          This method is called when a client passes authentication data for this scheme.
 boolean isAuthenticated()
          This method is used to check if the authentication done by this provider should be used to identify the creator of a node.
 boolean isValid(String id)
          Validates the syntax of an id.
static void main(String[] args)
          Call with a single argument of user:pass to generate authdata.
 boolean matches(String id, String aclExpr)
          This method is called to see if the given id matches the given id expression in the ACL.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

DigestAuthenticationProvider

public DigestAuthenticationProvider()
Method Detail

getScheme

public String getScheme()
Description copied from interface: AuthenticationProvider
The String used to represent this provider. This will correspond to the scheme field of an Id.

Specified by:
getScheme in interface AuthenticationProvider
Returns:
the scheme of this provider.

generateDigest

public static String generateDigest(String idPassword)
                             throws NoSuchAlgorithmException
Throws:
NoSuchAlgorithmException

handleAuthentication

public KeeperException.Code handleAuthentication(ServerCnxn cnxn,
                                                 byte[] authData)
Description copied from interface: AuthenticationProvider
This method is called when a client passes authentication data for this scheme. The authData is directly from the authentication packet. The implementor may attach new ids to the authInfo field of cnxn or may use cnxn to send packets back to the client.

Specified by:
handleAuthentication in interface AuthenticationProvider
Parameters:
cnxn - the cnxn that received the authentication information.
authData - the authentication data received.
Returns:
TODO

isAuthenticated

public boolean isAuthenticated()
Description copied from interface: AuthenticationProvider
This method is used to check if the authentication done by this provider should be used to identify the creator of a node. Some ids such as hosts and ip addresses are rather transient and in general don't really identify a client even though sometimes they do.

Specified by:
isAuthenticated in interface AuthenticationProvider
Returns:
true if this provider identifies creators.

isValid

public boolean isValid(String id)
Description copied from interface: AuthenticationProvider
Validates the syntax of an id.

Specified by:
isValid in interface AuthenticationProvider
Parameters:
id - the id to validate.
Returns:
true if id is well formed.

matches

public boolean matches(String id,
                       String aclExpr)
Description copied from interface: AuthenticationProvider
This method is called to see if the given id matches the given id expression in the ACL. This allows schemes to use application specific wild cards.

Specified by:
matches in interface AuthenticationProvider
Parameters:
id - the id to check.
aclExpr - the expression to match ids against.
Returns:
true if the id can be matched by the expression.

main

public static void main(String[] args)
                 throws NoSuchAlgorithmException
Call with a single argument of user:pass to generate authdata. Authdata output can be used when setting superDigest for example.

Parameters:
args - single argument of user:pass
Throws:
NoSuchAlgorithmException


Copyright © 2011 The Apache Software Foundation