com.hortonworks.registries.auth.util

Class KerberosUtil

java.lang.Object

com.hortonworks.registries.auth.util.KerberosUtil

public class KerberosUtil
extends java.lang.Object

Method Summary

Modifier and Type	Method and Description
static java.lang.String	getDefaultRealm()
static java.lang.String	getKrb5LoginModuleName()
static org.ietf.jgss.Oid	getOidInstance(java.lang.String oidName)
static java.lang.String[]	getPrincipalNames(java.lang.String keytab, java.util.regex.Pattern pattern) Get all the unique principals from keytabfile which matches a pattern.
static java.lang.String	getServicePrincipal(java.lang.String service, java.lang.String hostname) Create Kerberos principal for a given service and hostname.

Methods inherited from class java.lang.Object

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

Method Detail

getKrb5LoginModuleName

public static java.lang.String getKrb5LoginModuleName()

getOidInstance

public static org.ietf.jgss.Oid getOidInstance(java.lang.String oidName)
                                        throws java.lang.ClassNotFoundException,
                                               org.ietf.jgss.GSSException,
                                               java.lang.NoSuchFieldException,
                                               java.lang.IllegalAccessException

Throws:

java.lang.ClassNotFoundException

org.ietf.jgss.GSSException

java.lang.NoSuchFieldException

java.lang.IllegalAccessException

getDefaultRealm

public static java.lang.String getDefaultRealm()
                                        throws java.lang.ClassNotFoundException,
                                               java.lang.NoSuchMethodException,
                                               java.lang.IllegalArgumentException,
                                               java.lang.IllegalAccessException,
                                               java.lang.reflect.InvocationTargetException

Throws:

java.lang.ClassNotFoundException

java.lang.NoSuchMethodException

java.lang.IllegalArgumentException

java.lang.IllegalAccessException

java.lang.reflect.InvocationTargetException

getServicePrincipal

public static final java.lang.String getServicePrincipal(java.lang.String service,
                                                         java.lang.String hostname)
                                                  throws java.net.UnknownHostException

Create Kerberos principal for a given service and hostname. It converts hostname to lower case. If hostname is null or "0.0.0.0", it uses dynamically looked-up fqdn of the current host instead.

Parameters:

service - Service for which you want to generate the principal.

hostname - Fully-qualified domain name.

Returns:

Converted Kerberos principal name.

Throws:

java.net.UnknownHostException - If no IP address for the local host could be found.

getPrincipalNames

public static final java.lang.String[] getPrincipalNames(java.lang.String keytab,
                                                         java.util.regex.Pattern pattern)
                                                  throws java.io.IOException

Get all the unique principals from keytabfile which matches a pattern.

Parameters:

keytab - Name of the keytab file to be read.

pattern - pattern to be matched.

Returns:

list of unique principals which matches the pattern.

Throws:

java.io.IOException - if cannot get the principal name