org.apache.http.impl.auth
Class KerberosScheme

java.lang.Object
  extended by org.apache.http.impl.auth.AuthSchemeBase
      extended by org.apache.http.impl.auth.GGSSchemeBase
          extended by org.apache.http.impl.auth.KerberosScheme
All Implemented Interfaces:
AuthScheme, ContextAwareAuthScheme

public class KerberosScheme
extends GGSSchemeBase

KERBEROS authentication scheme.

Since:
4.2

Field Summary
 
Fields inherited from class org.apache.http.impl.auth.AuthSchemeBase
challengeState
 
Constructor Summary
KerberosScheme()
           
KerberosScheme(boolean stripPort)
           
KerberosScheme(boolean stripPort, boolean useCanonicalHostname)
           
 
Method Summary
 Header authenticate(Credentials credentials, HttpRequest request, HttpContext context)
          Produces KERBEROS authorization Header based on token created by processChallenge.
protected  byte[] generateToken(byte[] input, String authServer)
           
protected  byte[] generateToken(byte[] input, String authServer, Credentials credentials)
           
 String getParameter(String name)
          There are no valid parameters for KERBEROS authentication so this method always returns null.
 String getRealm()
          The concept of an authentication realm is not supported by the Negotiate authentication scheme.
 String getSchemeName()
          Returns textual designation of the given authentication scheme.
 boolean isConnectionBased()
          Returns true.
 
Methods inherited from class org.apache.http.impl.auth.GGSSchemeBase
authenticate, generateGSSToken, generateGSSToken, getManager, isComplete, parseChallenge
 
Methods inherited from class org.apache.http.impl.auth.AuthSchemeBase
getChallengeState, isProxy, processChallenge, toString
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

KerberosScheme

public KerberosScheme(boolean stripPort,
                      boolean useCanonicalHostname)
Since:
4.4

KerberosScheme

public KerberosScheme(boolean stripPort)

KerberosScheme

public KerberosScheme()
Method Detail

getSchemeName

public String getSchemeName()
Description copied from interface: AuthScheme
Returns textual designation of the given authentication scheme.

Returns:
the name of the given authentication scheme

authenticate

public Header authenticate(Credentials credentials,
                           HttpRequest request,
                           HttpContext context)
                    throws AuthenticationException
Produces KERBEROS authorization Header based on token created by processChallenge.

Specified by:
authenticate in interface ContextAwareAuthScheme
Overrides:
authenticate in class GGSSchemeBase
Parameters:
credentials - not used by the KERBEROS scheme.
request - The request being authenticated
context - HTTP context
Returns:
KERBEROS authentication Header
Throws:
AuthenticationException - if authentication string cannot be generated due to an authentication failure

generateToken

protected byte[] generateToken(byte[] input,
                               String authServer)
                        throws GSSException
Overrides:
generateToken in class GGSSchemeBase
Throws:
GSSException

generateToken

protected byte[] generateToken(byte[] input,
                               String authServer,
                               Credentials credentials)
                        throws GSSException
Overrides:
generateToken in class GGSSchemeBase
Throws:
GSSException

getParameter

public String getParameter(String name)
There are no valid parameters for KERBEROS authentication so this method always returns null.

Parameters:
name - The name of the parameter to be returned
Returns:
null

getRealm

public String getRealm()
The concept of an authentication realm is not supported by the Negotiate authentication scheme. Always returns null.

Returns:
null

isConnectionBased

public boolean isConnectionBased()
Returns true. KERBEROS authentication scheme is connection based.

Returns:
true.


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