Package com.impossibl.postgres.protocol.sasl.scram.message

Class ClientFinalMessage

java.lang.Object

com.impossibl.postgres.protocol.sasl.scram.message.ClientFinalMessage

All Implemented Interfaces:

StringWritable

public class ClientFinalMessage
extends Object
implements StringWritable

Constructs and parses client-final-messages. Formal syntax is: client-final-message-without-proof = channel-binding "," nonce ["," extensions] client-final-message = client-final-message-without-proof "," proof Note that extensions are not supported.

See Also:

[RFC5802] Section 7

Constructor Summary

Constructors

Constructor	Description
ClientFinalMessage(Gs2Header gs2Header, byte[] cbindData, String nonce, byte[] proof)	Constructus a client-final-message with the provided gs2Header (the same one used in the client-first-message), optionally the channel binding data, and the nonce.

Method Summary

Modifier and Type	Method	Description
String	toString()
StringBuffer	writeTo(StringBuffer sb)	Write the class information to the given StringBuffer.
static StringBuffer	writeToWithoutProof(Gs2Header gs2Header, byte[] cbindData, String nonce)	Returns a StringBuffer filled in with the formatted output of a client-first-message without the proof value.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ClientFinalMessage

public ClientFinalMessage(Gs2Header gs2Header,
                          byte[] cbindData,
                          String nonce,
                          byte[] proof)

Constructus a client-final-message with the provided gs2Header (the same one used in the client-first-message), optionally the channel binding data, and the nonce. This method is intended to be used by SCRAM clients, and not to be constructed directly.

Parameters:

gs2Header - The GSS-API header

cbindData - If using channel binding, the channel binding data

nonce - The nonce

proof - The bytes representing the computed client proof

Method Detail

writeToWithoutProof

public static StringBuffer writeToWithoutProof(Gs2Header gs2Header,
                                               byte[] cbindData,
                                               String nonce)

Returns a StringBuffer filled in with the formatted output of a client-first-message without the proof value. This is useful for computing the auth-message, used in turn to compute the proof.

Parameters:

gs2Header - The GSS-API header

cbindData - The optional channel binding data

nonce - The nonce

Returns:

The String representation of the part of the message that excludes the proof

writeTo

public StringBuffer writeTo(StringBuffer sb)

Description copied from interface: StringWritable

Write the class information to the given StringBuffer.

Specified by:

writeTo in interface StringWritable

Parameters:

sb - Where to write the data.

Returns:

The same StringBuffer.

toString

public String toString()

Overrides:

toString in class Object