org.apache.zookeeper.server.auth

Class X509AuthenticationProvider

java.lang.Object

org.apache.zookeeper.server.auth.X509AuthenticationProvider

All Implemented Interfaces:

AuthenticationProvider

public class X509AuthenticationProvider
extends Object
implements AuthenticationProvider

An AuthenticationProvider backed by an X509TrustManager and an X509KeyManager to perform remote host certificate authentication. The default algorithm is SunX509 and a JKS KeyStore. To specify the locations of the key store and trust store, set the following system properties:
zookeeper.ssl.keyStore.location
zookeeper.ssl.trustStore.location
To specify store passwords, set the following system properties:
zookeeper.ssl.keyStore.password
zookeeper.ssl.trustStore.password
Alternatively, this can be plugged with any X509TrustManager and X509KeyManager implementation.

Constructor Summary

Constructors

Constructor and Description
X509AuthenticationProvider() Initialize the X509AuthenticationProvider with a JKS KeyStore and JKS TrustStore according to the following system properties: zookeeper.ssl.keyStore.location zookeeper.ssl.trustStore.location zookeeper.ssl.keyStore.password zookeeper.ssl.trustStore.password
X509AuthenticationProvider(X509TrustManager trustManager, X509KeyManager keyManager) Initialize the X509AuthenticationProvider with the provided X509TrustManager and X509KeyManager.

Method Summary

Modifier and Type	Method and Description
protected String	getClientId(X509Certificate clientCert) Determine the string to be used as the remote host session Id for authorization purposes.
X509KeyManager	getKeyManager() Get the X509KeyManager implementation used for certificate management.
String	getScheme() The String used to represent this provider.
X509TrustManager	getTrustManager() Get the X509TrustManager implementation used for remote host authentication.
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.
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

Methods inherited from interface org.apache.zookeeper.server.auth.AuthenticationProvider

getUserName

Constructor Detail

X509AuthenticationProvider

public X509AuthenticationProvider()
                           throws X509Exception

Initialize the X509AuthenticationProvider with a JKS KeyStore and JKS TrustStore according to the following system properties:
zookeeper.ssl.keyStore.location
zookeeper.ssl.trustStore.location
zookeeper.ssl.keyStore.password
zookeeper.ssl.trustStore.password

Throws:

X509Exception

X509AuthenticationProvider

public X509AuthenticationProvider(X509TrustManager trustManager,
                                  X509KeyManager keyManager)

Initialize the X509AuthenticationProvider with the provided X509TrustManager and X509KeyManager.

Parameters:

trustManager - X509TrustManager implementation to use for remote host authentication.

keyManager - X509KeyManager implementation to use for certificate management.

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.

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

getClientId

protected String getClientId(X509Certificate clientCert)

Determine the string to be used as the remote host session Id for authorization purposes. Associate this client identifier with a ServerCnxn that has been authenticated over SSL, and any ACLs that refer to the authenticated client.

Parameters:

clientCert - Authenticated X509Certificate associated with the remote host.

Returns:

Identifier string to be associated with the client.

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.

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.

getTrustManager

public X509TrustManager getTrustManager()
                                 throws X509Exception.TrustManagerException

Get the X509TrustManager implementation used for remote host authentication.

Returns:

The X509TrustManager.

Throws:

X509Exception.TrustManagerException - When there is no trust manager available.

getKeyManager

public X509KeyManager getKeyManager()
                             throws X509Exception.KeyManagerException

Get the X509KeyManager implementation used for certificate management.

Returns:

The X509KeyManager.

Throws:

X509Exception.KeyManagerException - When there is no key manager available.