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From erodrig...@apache.org
Subject svn commit: rev 56503 - incubator/directory/kerberos/trunk/source/main/org/apache/kerberos/changepw/io
Date Wed, 03 Nov 2004 18:29:28 GMT
Author: erodriguez
Date: Wed Nov  3 10:29:27 2004
New Revision: 56503

Added:
   incubator/directory/kerberos/trunk/source/main/org/apache/kerberos/changepw/io/
   incubator/directory/kerberos/trunk/source/main/org/apache/kerberos/changepw/io/ChangePasswordDataDecoder.java
   incubator/directory/kerberos/trunk/source/main/org/apache/kerberos/changepw/io/ChangePasswordReplyEncoder.java
   incubator/directory/kerberos/trunk/source/main/org/apache/kerberos/changepw/io/ChangePasswordRequestDecoder.java
Log:
Codecs for the change password protocol request message, reply message, and password data
payload.

Added: incubator/directory/kerberos/trunk/source/main/org/apache/kerberos/changepw/io/ChangePasswordDataDecoder.java
==============================================================================
--- (empty file)
+++ incubator/directory/kerberos/trunk/source/main/org/apache/kerberos/changepw/io/ChangePasswordDataDecoder.java
Wed Nov  3 10:29:27 2004
@@ -0,0 +1,67 @@
+/*
+ *   Copyright 2004 The Apache Software Foundation
+ *
+ *   Licensed 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.kerberos.changepw.io;
+
+import org.apache.kerberos.changepw.value.*;
+import org.apache.kerberos.io.decoder.*;
+import org.bouncycastle.asn1.*;
+
+import java.io.*;
+import java.util.*;
+
+public class ChangePasswordDataDecoder extends KerberosMessageDecoder {
+	
+	public ChangePasswordData decodeChangePasswordData(byte[] encodedChangePasswdData) throws
IOException {
+		
+		ByteArrayInputStream bais = new ByteArrayInputStream(encodedChangePasswdData);
+		ASN1InputStream ais = new ASN1InputStream(bais);
+		
+		DERSequence sequence = (DERSequence) ais.readObject();
+		
+		return decodeChangePasswdData(sequence);
+	}
+	
+	protected ChangePasswordData decodeChangePasswdData(DERSequence sequence) {
+		
+		ChangePasswordDataModifier modifier = new ChangePasswordDataModifier();
+
+		for (Enumeration e = sequence.getObjects(); e.hasMoreElements();) {
+			DERTaggedObject object = ((DERTaggedObject) e.nextElement());
+			int tag = object.getTagNo();
+			DERObject derObject = object.getObject();
+			switch (tag) {
+				case 0:
+					DEROctetString tag0 = (DEROctetString) derObject;
+					modifier.setNewPassword(tag0.getOctets());
+					break;
+				case 1:
+					DERSequence tag1 = (DERSequence) derObject;
+					modifier.setTargetName(decodePrincipalName(tag1));
+					break;
+				case 2:
+					DERGeneralString tag2 = (DERGeneralString) derObject;
+					modifier.setTargetRealm(tag2.getString());
+					break;
+				default:
+					break;
+			}
+		}
+		
+		return modifier.getChangePasswdData();
+	}
+}
+

Added: incubator/directory/kerberos/trunk/source/main/org/apache/kerberos/changepw/io/ChangePasswordReplyEncoder.java
==============================================================================
--- (empty file)
+++ incubator/directory/kerberos/trunk/source/main/org/apache/kerberos/changepw/io/ChangePasswordReplyEncoder.java
Wed Nov  3 10:29:27 2004
@@ -0,0 +1,62 @@
+/*
+ *   Copyright 2004 The Apache Software Foundation
+ *
+ *   Licensed 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.kerberos.changepw.io;
+
+import org.apache.kerberos.changepw.messages.*;
+import org.apache.kerberos.io.encoder.*;
+import org.apache.kerberos.messages.application.*;
+
+import java.io.*;
+import java.nio.*;
+
+public class ChangePasswordReplyEncoder {
+	
+	public byte[] encode(ChangePasswordReply message) throws IOException {
+		
+		// Build application reply bytes
+		ApplicationReply appReply = message.getApplicationReply();
+		ApplicationReplyEncoder appEncoder = new ApplicationReplyEncoder();
+		byte[] encodedAppReply = appEncoder.encode(appReply);
+
+		// Build private message bytes
+		PrivateMessage privateMessage = message.getPrivateMessage();
+		PrivateMessageEncoder privateEncoder = new PrivateMessageEncoder();
+		byte[] privateBytes = privateEncoder.encode(privateMessage);
+		
+		ByteBuffer buf = ByteBuffer.allocate(512);
+		
+		short headerLength = 6;
+		
+		short messageLength = (short)(headerLength + encodedAppReply.length + privateBytes.length);
+		
+		short protocolVersion = 1;
+		
+		buf.putShort(messageLength);
+		buf.putShort(protocolVersion);
+		buf.putShort((short)encodedAppReply.length);
+		
+		buf.put(encodedAppReply);
+		buf.put(privateBytes);
+		
+		byte[] reply = new byte[buf.position()];
+		buf.rewind();
+		buf.get(reply, 0, reply.length);
+		
+		return reply;
+	}
+}
+

Added: incubator/directory/kerberos/trunk/source/main/org/apache/kerberos/changepw/io/ChangePasswordRequestDecoder.java
==============================================================================
--- (empty file)
+++ incubator/directory/kerberos/trunk/source/main/org/apache/kerberos/changepw/io/ChangePasswordRequestDecoder.java
Wed Nov  3 10:29:27 2004
@@ -0,0 +1,60 @@
+/*
+ *   Copyright 2004 The Apache Software Foundation
+ *
+ *   Licensed 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.kerberos.changepw.io;
+
+import org.apache.kerberos.changepw.messages.*;
+import org.apache.kerberos.io.decoder.*;
+import org.apache.kerberos.messages.*;
+import org.apache.kerberos.messages.application.*;
+
+import java.io.*;
+import java.nio.*;
+
+public class ChangePasswordRequestDecoder extends KerberosMessageDecoder {
+	
+	public ChangePasswordRequest decode(byte[] message) throws IOException {
+		
+		ByteBuffer buf = ByteBuffer.wrap(message);
+		
+		ChangePasswordRequestModifier modifier = new ChangePasswordRequestModifier();
+		
+		modifier.setMessageLength(buf.getShort());
+		modifier.setProtocolVersionNumber(buf.getShort());
+		
+		short authHeaderLength = buf.getShort();
+		modifier.setAuthHeaderLength(authHeaderLength);
+		
+		byte[] undecodedAuthHeader = new byte[authHeaderLength];
+		buf.get(undecodedAuthHeader, 0, authHeaderLength);
+		
+		ApplicationRequestDecoder decoder = new ApplicationRequestDecoder();
+		ApplicationRequest authHeader = decoder.decode(undecodedAuthHeader);
+		
+		modifier.setAuthHeader(authHeader);
+		
+		byte[] encodedPrivate = new byte[buf.remaining()];
+		buf.get(encodedPrivate, 0, buf.remaining());
+		
+		PrivateMessageDecoder privateDecoder = new PrivateMessageDecoder();
+		PrivateMessage privMessage = privateDecoder.decode(encodedPrivate);
+		
+		modifier.setPrivateMessage(privMessage);
+		
+		return modifier.getChangePasswordMessage();
+	}
+}
+

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