| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| */ |
| package org.apache.directory.shared.kerberos.codec.ticket; |
| |
| |
| import org.apache.directory.api.asn1.actions.CheckNotNullLength; |
| import org.apache.directory.api.asn1.ber.grammar.AbstractGrammar; |
| import org.apache.directory.api.asn1.ber.grammar.Grammar; |
| import org.apache.directory.api.asn1.ber.grammar.GrammarTransition; |
| import org.apache.directory.api.asn1.ber.tlv.UniversalTag; |
| import org.apache.directory.shared.kerberos.KerberosConstants; |
| import org.apache.directory.shared.kerberos.codec.ticket.actions.StoreEncPart; |
| import org.apache.directory.shared.kerberos.codec.ticket.actions.StoreRealm; |
| import org.apache.directory.shared.kerberos.codec.ticket.actions.StoreSName; |
| import org.apache.directory.shared.kerberos.codec.ticket.actions.StoreTktVno; |
| import org.apache.directory.shared.kerberos.codec.ticket.actions.TicketInit; |
| |
| |
| /** |
| * This class implements the Ticket message. All the actions are declared |
| * in this class. As it is a singleton, these declaration are only done once. If |
| * an action is to be added or modified, this is where the work is to be done ! |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public final class TicketGrammar extends AbstractGrammar<TicketContainer> |
| { |
| /** The instance of grammar. TicketGrammar is a singleton */ |
| private static Grammar<TicketContainer> instance = new TicketGrammar(); |
| |
| |
| /** |
| * Creates a new TicketGrammar object. |
| */ |
| @SuppressWarnings("unchecked") |
| private TicketGrammar() |
| { |
| setName( TicketGrammar.class.getName() ); |
| |
| // Create the transitions table |
| super.transitions = new GrammarTransition[TicketStatesEnum.LAST_TICKET_STATE.ordinal()][256]; |
| |
| // ============================================================================================ |
| // Ticket |
| // ============================================================================================ |
| // -------------------------------------------------------------------------------------------- |
| // Transition from START to Ticket |
| // -------------------------------------------------------------------------------------------- |
| // This is the starting state : |
| // Ticket ::= [APPLICATION 1] ... |
| super.transitions[TicketStatesEnum.START_STATE.ordinal()][KerberosConstants.TICKET_TAG] = |
| new GrammarTransition<TicketContainer>( |
| TicketStatesEnum.START_STATE, |
| TicketStatesEnum.TICKET_STATE, |
| KerberosConstants.TICKET_TAG, |
| new TicketInit() ); |
| |
| // -------------------------------------------------------------------------------------------- |
| // Transition from Ticket to Ticket-SEQ |
| // -------------------------------------------------------------------------------------------- |
| // Ticket ::= [APPLICATION 1] SEQUENCE { |
| super.transitions[TicketStatesEnum.TICKET_STATE.ordinal()][UniversalTag.SEQUENCE.getValue()] = |
| new GrammarTransition<TicketContainer>( |
| TicketStatesEnum.TICKET_STATE, |
| TicketStatesEnum.TICKET_SEQ_STATE, |
| UniversalTag.SEQUENCE, |
| new CheckNotNullLength<TicketContainer>() ); |
| |
| // -------------------------------------------------------------------------------------------- |
| // Transition from Ticket-SEQ to tkt-vno tag |
| // -------------------------------------------------------------------------------------------- |
| // Ticket ::= [APPLICATION 1] SEQUENCE { |
| // tkt-vno [0] |
| super.transitions[TicketStatesEnum.TICKET_SEQ_STATE.ordinal()][KerberosConstants.TICKET_TKT_VNO_TAG] = |
| new GrammarTransition<TicketContainer>( |
| TicketStatesEnum.TICKET_SEQ_STATE, |
| TicketStatesEnum.TICKET_VNO_TAG_STATE, |
| KerberosConstants.TICKET_TKT_VNO_TAG, |
| new CheckNotNullLength<TicketContainer>() ); |
| |
| // -------------------------------------------------------------------------------------------- |
| // Transition from tkt-vno tag to tkt-vno |
| // -------------------------------------------------------------------------------------------- |
| // Ticket ::= [APPLICATION 1] SEQUENCE { |
| // tkt-vno [0] INTEGER (5), |
| super.transitions[TicketStatesEnum.TICKET_VNO_TAG_STATE.ordinal()][UniversalTag.INTEGER.getValue()] = |
| new GrammarTransition<TicketContainer>( |
| TicketStatesEnum.TICKET_VNO_TAG_STATE, |
| TicketStatesEnum.TICKET_VNO_STATE, |
| UniversalTag.INTEGER, |
| new StoreTktVno() ); |
| |
| // -------------------------------------------------------------------------------------------- |
| // Transition from tkt-vno to realm tag |
| // -------------------------------------------------------------------------------------------- |
| // Ticket ::= [APPLICATION 1] SEQUENCE { |
| // tkt-vno [0] INTEGER (5), |
| // realm [1] |
| super.transitions[TicketStatesEnum.TICKET_VNO_STATE.ordinal()][KerberosConstants.TICKET_REALM_TAG] = |
| new GrammarTransition<TicketContainer>( |
| TicketStatesEnum.TICKET_VNO_STATE, |
| TicketStatesEnum.TICKET_REALM_TAG_STATE, |
| KerberosConstants.TICKET_REALM_TAG, |
| new CheckNotNullLength<TicketContainer>() ); |
| |
| // -------------------------------------------------------------------------------------------- |
| // Transition from realm tag to realm value |
| // -------------------------------------------------------------------------------------------- |
| // Ticket ::= [APPLICATION 1] SEQUENCE { |
| // tkt-vno [0] INTEGER (5), |
| // realm [1] Realm, |
| super.transitions[TicketStatesEnum.TICKET_REALM_TAG_STATE.ordinal()][UniversalTag.GENERAL_STRING.getValue()] = |
| new GrammarTransition<TicketContainer>( |
| TicketStatesEnum.TICKET_REALM_TAG_STATE, |
| TicketStatesEnum.TICKET_REALM_STATE, |
| UniversalTag.GENERAL_STRING, |
| new StoreRealm() ); |
| |
| // -------------------------------------------------------------------------------------------- |
| // Transition from realm value to sname tag |
| // -------------------------------------------------------------------------------------------- |
| // Ticket ::= [APPLICATION 1] SEQUENCE { |
| // tkt-vno [0] INTEGER (5), |
| // realm [1] Realm, |
| // sname [2] |
| super.transitions[TicketStatesEnum.TICKET_REALM_STATE.ordinal()][KerberosConstants.TICKET_SNAME_TAG] = |
| new GrammarTransition<TicketContainer>( |
| TicketStatesEnum.TICKET_REALM_STATE, |
| TicketStatesEnum.TICKET_SNAME_TAG_STATE, |
| KerberosConstants.TICKET_SNAME_TAG, |
| new StoreSName() ); |
| |
| // -------------------------------------------------------------------------------------------- |
| // Transition from sname tag to enc-part tag |
| // -------------------------------------------------------------------------------------------- |
| // Ticket ::= [APPLICATION 1] SEQUENCE { |
| // ... |
| // sname [2] PrincipalName, |
| // enc-part [3] |
| // |
| super.transitions[TicketStatesEnum.TICKET_SNAME_TAG_STATE.ordinal()][KerberosConstants.TICKET_ENC_PART_TAG] = |
| new GrammarTransition<TicketContainer>( |
| TicketStatesEnum.TICKET_SNAME_TAG_STATE, |
| TicketStatesEnum.TICKET_ENC_PART_TAG_STATE, |
| KerberosConstants.TICKET_ENC_PART_TAG, |
| new CheckNotNullLength<TicketContainer>() ); |
| |
| // -------------------------------------------------------------------------------------------- |
| // Transition from enc-part tag to enc-part value |
| // -------------------------------------------------------------------------------------------- |
| // Ticket ::= [APPLICATION 1] SEQUENCE { |
| // ... |
| // enc-part [3] EncryptedData |
| // |
| super.transitions[TicketStatesEnum.TICKET_SNAME_TAG_STATE.ordinal()][KerberosConstants.TICKET_ENC_PART_TAG] = |
| new GrammarTransition<TicketContainer>( |
| TicketStatesEnum.TICKET_SNAME_TAG_STATE, |
| TicketStatesEnum.TICKET_ENC_PART_TAG_STATE, |
| KerberosConstants.TICKET_ENC_PART_TAG, |
| new StoreEncPart() ); |
| } |
| |
| |
| /** |
| * Get the instance of this grammar |
| * |
| * @return An instance on the Ticket Grammar |
| */ |
| public static Grammar<TicketContainer> getInstance() |
| { |
| return instance; |
| } |
| } |