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/*
* @(#)file SASLOutputStream.java
* @(#)author Sun Microsystems, Inc.
* @(#)version 1.10
* @(#)lastedit 07/03/08
* @(#)build @BUILD_TAG_PLACEHOLDER@
*
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2007 Sun Microsystems, Inc. All Rights Reserved.
*
* The contents of this file are subject to the terms of either the GNU General
* Public License Version 2 only ("GPL") or the Common Development and
* Distribution License("CDDL")(collectively, the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy of the
* License at http://opendmk.dev.java.net/legal_notices/licenses.txt or in the
* LEGAL_NOTICES folder that accompanied this code. See the License for the
* specific language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file found at
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* or in the LEGAL_NOTICES folder that accompanied this code.
* Sun designates this particular file as subject to the "Classpath" exception
* as provided by Sun in the GPL Version 2 section of the License file that
* accompanied this code.
*
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
*
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*
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding
*
* "[Contributor] elects to include this software in this distribution
* under the [CDDL or GPL Version 2] license."
*
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* to distribute your version of this file under either the CDDL or the GPL
* Version 2, or to extend the choice of license to its licensees as provided
* above. However, if you add GPL Version 2 code and therefore, elected the
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*/
package com.sun.jmx.remote.opt.security;
import javax.security.sasl.Sasl;
import javax.security.sasl.SaslClient;
import javax.security.sasl.SaslServer;
import java.io.IOException;
import java.io.OutputStream;
import com.sun.jmx.remote.opt.util.ClassLogger;
public class SASLOutputStream extends OutputStream {
private int rawSendSize = 65536;
private byte[] lenBuf = new byte[4]; // buffer for storing length
private OutputStream out; // underlying output stream
private SaslClient sc;
private SaslServer ss;
public SASLOutputStream(SaslClient sc, OutputStream out)
throws IOException {
super();
this.out = out;
this.sc = sc;
this.ss = null;
String str = (String) sc.getNegotiatedProperty(Sasl.RAW_SEND_SIZE);
if (str != null) {
try {
rawSendSize = Integer.parseInt(str);
} catch (NumberFormatException e) {
throw new IOException(Sasl.RAW_SEND_SIZE +
" property must be numeric string: " + str);
}
}
}
public SASLOutputStream(SaslServer ss, OutputStream out)
throws IOException {
super();
this.out = out;
this.ss = ss;
this.sc = null;
String str = (String) ss.getNegotiatedProperty(Sasl.RAW_SEND_SIZE);
if (str != null) {
try {
rawSendSize = Integer.parseInt(str);
} catch (NumberFormatException e) {
throw new IOException(Sasl.RAW_SEND_SIZE +
" property must be numeric string: " + str);
}
}
}
public void write(int b) throws IOException {
byte[] buffer = new byte[1];
buffer[0] = (byte)b;
write(buffer, 0, 1);
}
public void write(byte[] buffer, int offset, int total) throws IOException {
int count;
byte[] wrappedToken, saslBuffer;
// "Packetize" buffer to be within rawSendSize
if (logger.traceOn()) {
logger.trace("write", "Total size: " + total);
}
for (int i = 0; i < total; i += rawSendSize) {
// Calculate length of current "packet"
count = (total - i) < rawSendSize ? (total - i) : rawSendSize;
// Generate wrapped token
if (sc != null)
wrappedToken = sc.wrap(buffer, offset+i, count);
else
wrappedToken = ss.wrap(buffer, offset+i, count);
// Write out length
intToNetworkByteOrder(wrappedToken.length, lenBuf, 0, 4);
if (logger.traceOn()) {
logger.trace("write", "sending size: " + wrappedToken.length);
}
out.write(lenBuf, 0, 4);
// Write out wrapped token
out.write(wrappedToken, 0, wrappedToken.length);
}
}
public void close() throws IOException {
if (sc != null)
sc.dispose();
else
ss.dispose();
out.close();
}
/**
* Encodes an integer into 4 bytes in network byte order in the buffer
* supplied.
*/
private void intToNetworkByteOrder(int num, byte[] buf,
int start, int count) {
if (count > 4) {
throw new IllegalArgumentException("Cannot handle more " +
"than 4 bytes");
}
for (int i = count-1; i >= 0; i--) {
buf[start+i] = (byte)(num & 0xff);
num >>>= 8;
}
}
private static final ClassLogger logger =
new ClassLogger("javax.management.remote.misc", "SASLOutputStream");
}