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java.lang.Objectorg.apache.mina.proxy.handlers.http.ntlm.NTLMUtilities
public class NTLMUtilities
NTLMUtilities.java - NTLM functions used for authentication and unit testing.
Field Summary |
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Constructor Summary | |
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NTLMUtilities()
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Method Summary | |
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static byte[] |
createType1Message(String workStation,
String domain,
Integer customFlags,
byte[] osVersion)
see http://davenport.sourceforge.net/ntlm.html#theType1Message |
static byte[] |
createType3Message(String user,
String password,
byte[] challenge,
String target,
String workstation,
Integer serverFlags,
byte[] osVersion)
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static byte[] |
extractChallengeFromType2Message(byte[] msg)
Extracts the NTLM challenge from the type 2 message as an 8 byte array. |
static int |
extractFlagsFromType2Message(byte[] msg)
Extracts the NTLM flags from the type 2 message. |
static byte[] |
extractTargetInfoFromType2Message(byte[] msg,
Integer msgFlags)
Extracts the target information block from the type 2 message. |
static String |
extractTargetNameFromType2Message(byte[] msg,
Integer msgFlags)
Extracts the target name from the type 2 message. |
static byte[] |
getOsVersion()
Tries to return a valid OS version on Windows systems. |
static void |
printTargetInformationBlockFromType2Message(byte[] msg,
Integer msgFlags,
PrintWriter out)
Prints to the PrintWriter the target information block extracted
from the type 2 message. |
static byte[] |
readSecurityBufferTarget(byte[] msg,
int securityBufferOffset)
Reads the byte array described by the security buffer stored at the securityBufferOffset offset. |
static void |
writeOSVersion(byte majorVersion,
byte minorVersion,
short buildNumber,
byte[] b,
int offset)
Writes the Windows OS version passed in as three byte values (majorVersion.minorVersion.buildNumber) to the given byte array at offset . |
static byte[] |
writeSecurityBuffer(short length,
int bufferOffset)
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static void |
writeSecurityBuffer(short length,
short allocated,
int bufferOffset,
byte[] b,
int offset)
Writes a security buffer to the given array b at offset
offset . |
static int |
writeSecurityBufferAndUpdatePointer(ByteArrayOutputStream baos,
short len,
int pointer)
Writes a security buffer and returns the pointer of the position where to write the next security buffer. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public NTLMUtilities()
Method Detail |
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public static final byte[] writeSecurityBuffer(short length, int bufferOffset)
writeSecurityBuffer(short, short, int, byte[], int)
public static final void writeSecurityBuffer(short length, short allocated, int bufferOffset, byte[] b, int offset)
b
at offset
offset
. A security buffer defines a pointer to an area
in the data that defines some data with a variable length. This allows
to have a semi-fixed length header thus making a little bit easier
the decoding process in the NTLM protocol.
length
- the length of the security bufferallocated
- the allocated space for the security buffer (should be
greater or equal to length
bufferOffset
- the offset from the main array where the currently
defined security buffer will be writtenb
- the buffer in which we write the security bufferoffset
- the offset at which to write to the b bufferpublic static final void writeOSVersion(byte majorVersion, byte minorVersion, short buildNumber, byte[] b, int offset)
offset
.
majorVersion
- the major version numberminorVersion
- the minor version numberbuildNumber
- the build numberb
- the target byte arrayoffset
- the offset at which to write in the arraypublic static final byte[] getOsVersion()
public static final byte[] createType1Message(String workStation, String domain, Integer customFlags, byte[] osVersion)
workStation
- the workstation namedomain
- the domain namecustomFlags
- custom flags, if null then
NTLMConstants.DEFAULT_CONSTANTS
is usedosVersion
- the os version of the client, if null then
NTLMConstants.DEFAULT_OS_VERSION
is used
public static final int writeSecurityBufferAndUpdatePointer(ByteArrayOutputStream baos, short len, int pointer) throws IOException
baos
- the stream where the security buffer is writtenlen
- the length of the security bufferpointer
- the position where the security buffer can be written
IOException
- if writing to the ByteArrayOutputStream failspublic static final byte[] extractChallengeFromType2Message(byte[] msg)
msg
- the type 2 message byte array
public static final int extractFlagsFromType2Message(byte[] msg)
msg
- the type 2 message byte array
public static final byte[] readSecurityBufferTarget(byte[] msg, int securityBufferOffset)
securityBufferOffset
offset.
msg
- the message where to read the security buffer and it's valuesecurityBufferOffset
- the offset at which to read the security buffer
public static final String extractTargetNameFromType2Message(byte[] msg, Integer msgFlags) throws UnsupportedEncodingException
msg
- the type 2 message byte arraymsgFlags
- the flags if null then flags are extracted from the
type 2 message
UnsupportedEncodingException
- if unable to use the
needed UTF-16LE or ASCII charsetspublic static final byte[] extractTargetInfoFromType2Message(byte[] msg, Integer msgFlags)
msg
- the type 2 message byte arraymsgFlags
- the flags if null then flags are extracted from the
type 2 message
public static final void printTargetInformationBlockFromType2Message(byte[] msg, Integer msgFlags, PrintWriter out) throws UnsupportedEncodingException
PrintWriter
the target information block extracted
from the type 2 message.
msg
- the type 2 messagemsgFlags
- the flags if null then flags are extracted from the
type 2 messageout
- the output target for the information
UnsupportedEncodingException
- if unable to use the
needed UTF-16LE or ASCII charsetspublic static final byte[] createType3Message(String user, String password, byte[] challenge, String target, String workstation, Integer serverFlags, byte[] osVersion)
user
- the user namepassword
- the user passwordchallenge
- the challenge responsetarget
- the target nameworkstation
- the client workstation's nameserverFlags
- the flags set by the clientosVersion
- the os version of the client
http://davenport.sourceforge.net/ntlm.html#theType3Message
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