Package com.mysql.cj.protocol.a.authentication

Class CachingSha2PasswordPlugin

java.lang.Object

com.mysql.cj.protocol.a.authentication.Sha256PasswordPlugin

com.mysql.cj.protocol.a.authentication.CachingSha2PasswordPlugin

All Implemented Interfaces:

AuthenticationPlugin<NativePacketPayload>

public class CachingSha2PasswordPlugin
extends Sha256PasswordPlugin

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	CachingSha2PasswordPlugin.AuthStage

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	PLUGIN_NAME

Fields inherited from class com.mysql.cj.protocol.a.authentication.Sha256PasswordPlugin

password, protocol, publicKeyRequested, publicKeyString, seed, serverRSAPublicKeyFile

Constructor Summary

Constructors

Constructor	Description
CachingSha2PasswordPlugin()

Method Summary

Modifier and Type	Method	Description
void	destroy()	Called by the driver when this extension should release any resources it is holding and cleanup internally before the connection is closed.
protected byte[]	encryptPassword()
java.lang.String	getProtocolPluginName()	Returns the name that the MySQL server uses on the wire for this plugin
void	init(Protocol<NativePacketPayload> prot)	We need direct Protocol reference because it isn't available from Connection before authentication complete.
boolean	nextAuthenticationStep(NativePacketPayload fromServer, java.util.List<NativePacketPayload> toServer)	Process authentication handshake data from server and optionally produce data to be sent back to the server.
void	reset()	Resets the authentication steps sequence.

Methods inherited from class com.mysql.cj.protocol.a.authentication.Sha256PasswordPlugin

encryptPassword, isReusable, readRSAKey, requiresConfidentiality, setAuthenticationParameters

Methods inherited from class java.lang.Object

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

Field Details

PLUGIN_NAME

public static java.lang.String PLUGIN_NAME

Constructor Details

CachingSha2PasswordPlugin

public CachingSha2PasswordPlugin()

Method Details

init

public void init(Protocol<NativePacketPayload> prot)

Description copied from interface: AuthenticationPlugin

We need direct Protocol reference because it isn't available from Connection before authentication complete.

Specified by:

init in interface AuthenticationPlugin<NativePacketPayload>

Overrides:

init in class Sha256PasswordPlugin

Parameters:

prot - protocol instance

reset

public void reset()

Description copied from interface: AuthenticationPlugin

Resets the authentication steps sequence.

destroy

public void destroy()

Description copied from interface: AuthenticationPlugin

Called by the driver when this extension should release any resources it is holding and cleanup internally before the connection is closed.

Specified by:

destroy in interface AuthenticationPlugin<NativePacketPayload>

Overrides:

destroy in class Sha256PasswordPlugin

getProtocolPluginName

public java.lang.String getProtocolPluginName()

Description copied from interface: AuthenticationPlugin

Returns the name that the MySQL server uses on the wire for this plugin

Specified by:

getProtocolPluginName in interface AuthenticationPlugin<NativePacketPayload>

Overrides:

getProtocolPluginName in class Sha256PasswordPlugin

Returns:

plugin name

nextAuthenticationStep

public boolean nextAuthenticationStep(NativePacketPayload fromServer, java.util.List<NativePacketPayload> toServer)

Description copied from interface: AuthenticationPlugin

Process authentication handshake data from server and optionally produce data to be sent back to the server. The driver will keep calling this method on each new server packet arrival until either an Exception is thrown (authentication failure, please use appropriate SQLStates) or the number of exchange iterations exceeded max limit or an OK packet is sent by server indicating that the connection has been approved. If, on return from this method, toServer is a non-empty list of buffers, then these buffers will be sent to the server in the same order and without any reads in between them. If toServer is an empty list, no data will be sent to server, driver immediately reads the next packet from server. In case of errors the method should throw Exception.

Specified by:

nextAuthenticationStep in interface AuthenticationPlugin<NativePacketPayload>

Overrides:

nextAuthenticationStep in class Sha256PasswordPlugin

Parameters:

fromServer - a buffer containing handshake data payload from server (can be empty).

toServer - list of buffers with data to be sent to the server (the list can be empty, but buffers in the list should contain data).

Returns:

return value is ignored.

encryptPassword

protected byte[] encryptPassword()

Overrides:

encryptPassword in class Sha256PasswordPlugin