| /* |
| * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package sun.security.jgss.spnego; |
| |
| import java.io.*; |
| import java.util.*; |
| import org.ietf.jgss.*; |
| import sun.security.util.*; |
| import sun.security.jgss.*; |
| |
| /** |
| * Astract class for SPNEGO tokens. |
| * Implementation is based on RFC 2478 |
| * |
| * NegotiationToken ::= CHOICE { |
| * negTokenInit [0] NegTokenInit, |
| * negTokenTarg [1] NegTokenTarg } |
| * |
| * |
| * @author Seema Malkani |
| * @since 1.6 |
| */ |
| |
| abstract class SpNegoToken extends GSSToken { |
| |
| static final int NEG_TOKEN_INIT_ID = 0x00; |
| static final int NEG_TOKEN_TARG_ID = 0x01; |
| |
| static enum NegoResult { |
| ACCEPT_COMPLETE, |
| ACCEPT_INCOMPLETE, |
| REJECT, |
| }; |
| |
| private int tokenType; |
| |
| // property |
| static final boolean DEBUG = SpNegoContext.DEBUG; |
| |
| /** |
| * The object identifier corresponding to the SPNEGO GSS-API |
| * mechanism. |
| */ |
| public static ObjectIdentifier OID; |
| |
| static { |
| try { |
| OID = new ObjectIdentifier(SpNegoMechFactory. |
| GSS_SPNEGO_MECH_OID.toString()); |
| } catch (IOException ioe) { |
| // should not happen |
| } |
| } |
| |
| /** |
| * Creates SPNEGO token of the specified type. |
| */ |
| protected SpNegoToken(int tokenType) { |
| this.tokenType = tokenType; |
| } |
| |
| /** |
| * Returns the individual encoded SPNEGO token |
| * |
| * @return the encoded token |
| * @exception GSSException |
| */ |
| abstract byte[] encode() throws GSSException; |
| |
| /** |
| * Returns the encoded SPNEGO token |
| * Note: inserts the required CHOICE tags |
| * |
| * @return the encoded token |
| * @exception GSSException |
| */ |
| byte[] getEncoded() throws IOException, GSSException { |
| |
| // get the token encoded value |
| DerOutputStream token = new DerOutputStream(); |
| token.write(encode()); |
| |
| // now insert the CHOICE |
| switch (tokenType) { |
| case NEG_TOKEN_INIT_ID: |
| // Insert CHOICE of Negotiation Token |
| DerOutputStream initToken = new DerOutputStream(); |
| initToken.write(DerValue.createTag(DerValue.TAG_CONTEXT, |
| true, (byte) NEG_TOKEN_INIT_ID), token); |
| return initToken.toByteArray(); |
| |
| case NEG_TOKEN_TARG_ID: |
| // Insert CHOICE of Negotiation Token |
| DerOutputStream targToken = new DerOutputStream(); |
| targToken.write(DerValue.createTag(DerValue.TAG_CONTEXT, |
| true, (byte) NEG_TOKEN_TARG_ID), token); |
| return targToken.toByteArray(); |
| default: |
| return token.toByteArray(); |
| } |
| } |
| |
| /** |
| * Returns the SPNEGO token type |
| * |
| * @return the token type |
| */ |
| final int getType() { |
| return tokenType; |
| } |
| |
| /** |
| * Returns a string representing the token type. |
| * |
| * @param tokenType the token type for which a string name is desired |
| * @return the String name of this token type |
| */ |
| static String getTokenName(int type) { |
| switch (type) { |
| case NEG_TOKEN_INIT_ID: |
| return "SPNEGO NegTokenInit"; |
| case NEG_TOKEN_TARG_ID: |
| return "SPNEGO NegTokenTarg"; |
| default: |
| return "SPNEGO Mechanism Token"; |
| } |
| } |
| |
| /** |
| * Returns the enumerated type of the Negotiation result. |
| * |
| * @param result the negotiated result represented by integer |
| * @return the enumerated type of Negotiated result |
| */ |
| static NegoResult getNegoResultType(int result) { |
| switch (result) { |
| case 0: |
| return NegoResult.ACCEPT_COMPLETE; |
| case 1: |
| return NegoResult.ACCEPT_INCOMPLETE; |
| case 2: |
| return NegoResult.REJECT; |
| default: |
| // unknown - return optimistic result |
| return NegoResult.ACCEPT_COMPLETE; |
| } |
| } |
| |
| /** |
| * Returns a string representing the negotiation result. |
| * |
| * @param result the negotiated result |
| * @return the String message of this negotiated result |
| */ |
| static String getNegoResultString(int result) { |
| switch (result) { |
| case 0: |
| return "Accept Complete"; |
| case 1: |
| return "Accept InComplete"; |
| case 2: |
| return "Reject"; |
| default: |
| return ("Unknown Negotiated Result: " + result); |
| } |
| } |
| } |