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/* jcifs smb client library in Java
* Copyright (C) 2002 "Michael B. Allen"
* "Eric Glass"
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package jcifs.ntlmssp;
import java.io.IOException;
import jcifs.CIFSContext;
/**
* Represents an NTLMSSP Type-1 message.
*/
public class Type1Message extends NtlmMessage {
private String suppliedDomain;
private String suppliedWorkstation;
/**
* Creates a Type-1 message using default values from the current
* environment.
*
* @param tc
* context to use
*/
public Type1Message ( CIFSContext tc ) {
this(tc, getDefaultFlags(tc), tc.getConfig().getDefaultDomain(), tc.getNameServiceClient().getLocalHost().getHostName());
}
/**
* Creates a Type-1 message with the specified parameters.
*
* @param tc
* context to use
* @param flags
* The flags to apply to this message.
* @param suppliedDomain
* The supplied authentication domain.
* @param suppliedWorkstation
* The supplied workstation name.
*/
public Type1Message ( CIFSContext tc, int flags, String suppliedDomain, String suppliedWorkstation ) {
setFlags(getDefaultFlags(tc) | flags);
setSuppliedDomain(suppliedDomain);
setSuppliedWorkstation(suppliedWorkstation);
}
/**
* Creates a Type-1 message using the given raw Type-1 material.
*
* @param material
* The raw Type-1 material used to construct this message.
* @throws IOException
* If an error occurs while parsing the material.
*/
public Type1Message ( byte[] material ) throws IOException {
parse(material);
}
/**
* Returns the default flags for a generic Type-1 message in the
* current environment.
*
* @param tc
* context to use
* @return An int containing the default flags.
*/
public static int getDefaultFlags ( CIFSContext tc ) {
return NTLMSSP_NEGOTIATE_NTLM | NTLMSSP_NEGOTIATE_VERSION
| ( tc.getConfig().isUseUnicode() ? NTLMSSP_NEGOTIATE_UNICODE : NTLMSSP_NEGOTIATE_OEM );
}
/**
* Returns the supplied authentication domain.
*
* @return A String containing the supplied domain.
*/
public String getSuppliedDomain () {
return this.suppliedDomain;
}
/**
* Sets the supplied authentication domain for this message.
*
* @param suppliedDomain
* The supplied domain for this message.
*/
public void setSuppliedDomain ( String suppliedDomain ) {
this.suppliedDomain = suppliedDomain;
}
/**
* Returns the supplied workstation name.
*
* @return A String containing the supplied workstation name.
*/
public String getSuppliedWorkstation () {
return this.suppliedWorkstation;
}
/**
* Sets the supplied workstation name for this message.
*
* @param suppliedWorkstation
* The supplied workstation for this message.
*/
public void setSuppliedWorkstation ( String suppliedWorkstation ) {
this.suppliedWorkstation = suppliedWorkstation;
}
@Override
public byte[] toByteArray () {
try {
int flags = getFlags();
int size = 8 * 4 + ( ( flags & NTLMSSP_NEGOTIATE_VERSION ) != 0 ? 8 : 0 );
byte[] domain = new byte[0];
String suppliedDomainString = getSuppliedDomain();
if ( ( flags & NTLMSSP_NEGOTIATE_VERSION ) == 0 && suppliedDomainString != null && suppliedDomainString.length() != 0 ) {
flags |= NTLMSSP_NEGOTIATE_OEM_DOMAIN_SUPPLIED;
domain = suppliedDomainString.toUpperCase().getBytes(getOEMEncoding());
size += domain.length;
}
else {
flags &= ( NTLMSSP_NEGOTIATE_OEM_DOMAIN_SUPPLIED ^ 0xffffffff );
}
byte[] workstation = new byte[0];
String suppliedWorkstationString = getSuppliedWorkstation();
if ( ( flags & NTLMSSP_NEGOTIATE_VERSION ) == 0 && suppliedWorkstationString != null && suppliedWorkstationString.length() != 0 ) {
flags |= NTLMSSP_NEGOTIATE_OEM_WORKSTATION_SUPPLIED;
workstation = suppliedWorkstationString.toUpperCase().getBytes(getOEMEncoding());
size += workstation.length;
}
else {
flags &= ( NTLMSSP_NEGOTIATE_OEM_WORKSTATION_SUPPLIED ^ 0xffffffff );
}
byte[] type1 = new byte[size];
int pos = 0;
System.arraycopy(NTLMSSP_SIGNATURE, 0, type1, 0, NTLMSSP_SIGNATURE.length);
pos += NTLMSSP_SIGNATURE.length;
writeULong(type1, pos, NTLMSSP_TYPE1);
pos += 4;
writeULong(type1, pos, flags);
pos += 4;
int domOffOff = writeSecurityBuffer(type1, pos, domain);
pos += 8;
int wsOffOff = writeSecurityBuffer(type1, pos, workstation);
pos += 8;
if ( ( flags & NTLMSSP_NEGOTIATE_VERSION ) != 0 ) {
System.arraycopy(NTLMSSP_VERSION, 0, type1, pos, NTLMSSP_VERSION.length);
pos += NTLMSSP_VERSION.length;
}
pos += writeSecurityBufferContent(type1, pos, domOffOff, domain);
pos += writeSecurityBufferContent(type1, pos, wsOffOff, workstation);
return type1;
}
catch ( IOException ex ) {
throw new IllegalStateException(ex.getMessage());
}
}
@Override
public String toString () {
String suppliedDomainString = getSuppliedDomain();
String suppliedWorkstationString = getSuppliedWorkstation();
return "Type1Message[suppliedDomain=" + ( suppliedDomainString == null ? "null" : suppliedDomainString ) + ",suppliedWorkstation="
+ ( suppliedWorkstationString == null ? "null" : suppliedWorkstationString ) + ",flags=0x"
+ jcifs.util.Hexdump.toHexString(getFlags(), 8) + "]";
}
private void parse ( byte[] material ) throws IOException {
int pos = 0;
for ( int i = 0; i < 8; i++ ) {
if ( material[ i ] != NTLMSSP_SIGNATURE[ i ] ) {
throw new IOException("Not an NTLMSSP message.");
}
}
pos += 8;
if ( readULong(material, pos) != NTLMSSP_TYPE1 ) {
throw new IOException("Not a Type 1 message.");
}
pos += 4;
int flags = readULong(material, pos);
setFlags(flags);
pos += 4;
if ( ( flags & NTLMSSP_NEGOTIATE_OEM_DOMAIN_SUPPLIED ) != 0 ) {
byte[] domain = readSecurityBuffer(material, pos);
setSuppliedDomain(new String(domain, getOEMEncoding()));
}
pos += 8;
if ( ( flags & NTLMSSP_NEGOTIATE_OEM_WORKSTATION_SUPPLIED ) != 0 ) {
byte[] workstation = readSecurityBuffer(material, pos);
setSuppliedWorkstation(new String(workstation, getOEMEncoding()));
}
pos += 8;
}
}
