org.eclipse.jgit.internal.transport.sshd.proxy

Class Socks5ClientConnector

java.lang.Object

org.eclipse.jgit.internal.transport.sshd.proxy.AbstractClientProxyConnector

org.eclipse.jgit.internal.transport.sshd.proxy.Socks5ClientConnector

All Implemented Interfaces:

org.apache.sshd.client.session.ClientProxyConnector, StatefulProxyConnector

public class Socks5ClientConnector
extends AbstractClientProxyConnector

A AbstractClientProxyConnector to connect through a SOCKS5 proxy.

See Also:

RFC 1928

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private static class	Socks5ClientConnector.ProtocolState
private static class	Socks5ClientConnector.SocksAuthenticationMethod Authentication methods for SOCKS5.
private class	Socks5ClientConnector.SocksBasicAuthentication
private class	Socks5ClientConnector.SocksGssApiAuthentication

Field Summary

Fields

Modifier and Type	Field and Description
private byte[]	authenticationProposals
private AuthenticationHandler<org.apache.sshd.common.util.buffer.Buffer,org.apache.sshd.common.util.buffer.Buffer>	authenticator
private org.ietf.jgss.GSSContext	context
private static byte	SOCKS_ADDRESS_FQDN
private static byte	SOCKS_ADDRESS_IPv4
private static byte	SOCKS_ADDRESS_IPv6
private static byte	SOCKS_CMD_CONNECT
private static byte	SOCKS_REPLY_ADDRESS_UNSUPPORTED
private static byte	SOCKS_REPLY_COMMAND_UNSUPPORTED
private static byte	SOCKS_REPLY_CONNECTION_REFUSED
private static byte	SOCKS_REPLY_FAILURE
private static byte	SOCKS_REPLY_FORBIDDEN
private static byte	SOCKS_REPLY_HOST_UNREACHABLE
private static byte	SOCKS_REPLY_NETWORK_UNREACHABLE
private static byte	SOCKS_REPLY_SUCCESS
private static byte	SOCKS_REPLY_TTL_EXPIRED
private static byte	SOCKS_VERSION_5
private Socks5ClientConnector.ProtocolState	state

Fields inherited from class org.eclipse.jgit.internal.transport.sshd.proxy.AbstractClientProxyConnector

proxyAddress, proxyPassword, proxyUser, remoteAddress

Fields inherited from interface org.eclipse.jgit.internal.transport.sshd.proxy.StatefulProxyConnector

TIMEOUT_PROPERTY

Constructor Summary

Constructors

Constructor and Description
Socks5ClientConnector(java.net.InetSocketAddress proxyAddress, java.net.InetSocketAddress remoteAddress) Creates a new Socks5ClientConnector.
Socks5ClientConnector(java.net.InetSocketAddress proxyAddress, java.net.InetSocketAddress remoteAddress, java.lang.String proxyUser, char[] proxyPassword) Creates a new Socks5ClientConnector.

Method Summary

Modifier and Type	Method and Description
private void	authStep(org.apache.sshd.common.io.IoSession session, org.apache.sshd.common.util.buffer.Buffer input)
private void	close()
private void	doGssApiAuth(org.apache.sshd.common.io.IoSession session)
private void	doPasswordAuth(org.apache.sshd.common.io.IoSession session)
private void	establishConnection(org.apache.sshd.common.util.buffer.Buffer data)
private byte[]	getAuthenticationProposals()
private Socks5ClientConnector.SocksAuthenticationMethod	getAuthMethod(byte value)
private static org.ietf.jgss.GSSContext	getGSSContext(java.net.InetSocketAddress address)
private static byte[]	getRawAddress(java.net.InetSocketAddress address)
void	messageReceived(org.apache.sshd.common.io.IoSession session, org.apache.sshd.common.util.Readable buffer) Handle a received message.
void	sendClientProxyMetadata(org.apache.sshd.client.session.ClientSession sshSession)
private void	sendConnectInfo(org.apache.sshd.common.io.IoSession session)
private void	startAuth(org.apache.sshd.common.io.IoSession session)
private void	versionCheck(byte version)

Methods inherited from class org.eclipse.jgit.internal.transport.sshd.proxy.AbstractClientProxyConnector

adjustTimeout, clearPassword, getTimeout, init, runWhenDone, setDone

Methods inherited from class java.lang.Object

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

Field Detail

SOCKS_VERSION_5

private static final byte SOCKS_VERSION_5

See Also:

Constant Field Values

SOCKS_CMD_CONNECT

private static final byte SOCKS_CMD_CONNECT

See Also:

Constant Field Values

SOCKS_ADDRESS_IPv4

private static final byte SOCKS_ADDRESS_IPv4

See Also:

Constant Field Values

SOCKS_ADDRESS_FQDN

private static final byte SOCKS_ADDRESS_FQDN

See Also:

Constant Field Values

SOCKS_ADDRESS_IPv6

private static final byte SOCKS_ADDRESS_IPv6

See Also:

Constant Field Values

SOCKS_REPLY_SUCCESS

private static final byte SOCKS_REPLY_SUCCESS

See Also:

Constant Field Values

SOCKS_REPLY_FAILURE

private static final byte SOCKS_REPLY_FAILURE

See Also:

Constant Field Values

SOCKS_REPLY_FORBIDDEN

private static final byte SOCKS_REPLY_FORBIDDEN

See Also:

Constant Field Values

SOCKS_REPLY_NETWORK_UNREACHABLE

private static final byte SOCKS_REPLY_NETWORK_UNREACHABLE

See Also:

Constant Field Values

SOCKS_REPLY_HOST_UNREACHABLE

private static final byte SOCKS_REPLY_HOST_UNREACHABLE

See Also:

Constant Field Values

SOCKS_REPLY_CONNECTION_REFUSED

private static final byte SOCKS_REPLY_CONNECTION_REFUSED

See Also:

Constant Field Values

SOCKS_REPLY_TTL_EXPIRED

private static final byte SOCKS_REPLY_TTL_EXPIRED

See Also:

Constant Field Values

SOCKS_REPLY_COMMAND_UNSUPPORTED

private static final byte SOCKS_REPLY_COMMAND_UNSUPPORTED

See Also:

Constant Field Values

SOCKS_REPLY_ADDRESS_UNSUPPORTED

private static final byte SOCKS_REPLY_ADDRESS_UNSUPPORTED

See Also:

Constant Field Values

state

private Socks5ClientConnector.ProtocolState state

authenticator

private AuthenticationHandler<org.apache.sshd.common.util.buffer.Buffer,org.apache.sshd.common.util.buffer.Buffer> authenticator

context

private org.ietf.jgss.GSSContext context

authenticationProposals

private byte[] authenticationProposals

Constructor Detail

Socks5ClientConnector

public Socks5ClientConnector(@NonNull
                             java.net.InetSocketAddress proxyAddress,
                             @NonNull
                             java.net.InetSocketAddress remoteAddress)

Creates a new Socks5ClientConnector. The connector supports anonymous connections as well as username-password or Kerberos5 (GSS-API) authentication.

Parameters:

proxyAddress - of the proxy server we're connecting to

remoteAddress - of the target server to connect to

Socks5ClientConnector

public Socks5ClientConnector(@NonNull
                             java.net.InetSocketAddress proxyAddress,
                             @NonNull
                             java.net.InetSocketAddress remoteAddress,
                             java.lang.String proxyUser,
                             char[] proxyPassword)

Creates a new Socks5ClientConnector. The connector supports anonymous connections as well as username-password or Kerberos5 (GSS-API) authentication.

Parameters:

proxyAddress - of the proxy server we're connecting to

remoteAddress - of the target server to connect to

proxyUser - to authenticate at the proxy with

proxyPassword - to authenticate at the proxy with

Method Detail

sendClientProxyMetadata

public void sendClientProxyMetadata(org.apache.sshd.client.session.ClientSession sshSession)
                             throws java.lang.Exception

Throws:

java.lang.Exception

getAuthenticationProposals

private byte[] getAuthenticationProposals()

sendConnectInfo

private void sendConnectInfo(org.apache.sshd.common.io.IoSession session)
                      throws java.lang.Exception

Throws:

java.lang.Exception

doPasswordAuth

private void doPasswordAuth(org.apache.sshd.common.io.IoSession session)
                     throws java.lang.Exception

Throws:

java.lang.Exception

doGssApiAuth

private void doGssApiAuth(org.apache.sshd.common.io.IoSession session)
                   throws java.lang.Exception

Throws:

java.lang.Exception

close

private void close()

startAuth

private void startAuth(org.apache.sshd.common.io.IoSession session)
                throws java.lang.Exception

Throws:

java.lang.Exception

authStep

private void authStep(org.apache.sshd.common.io.IoSession session,
                      org.apache.sshd.common.util.buffer.Buffer input)
               throws java.lang.Exception

Throws:

java.lang.Exception

establishConnection

private void establishConnection(org.apache.sshd.common.util.buffer.Buffer data)
                          throws java.lang.Exception

Throws:

java.lang.Exception

messageReceived

public void messageReceived(org.apache.sshd.common.io.IoSession session,
                            org.apache.sshd.common.util.Readable buffer)
                     throws java.lang.Exception

Description copied from interface: StatefulProxyConnector

Handle a received message.

Parameters:

session - to use for writing data

buffer - received data

Throws:

java.lang.Exception - if data cannot be read, or the connection attempt fails

versionCheck

private void versionCheck(byte version)
                   throws java.lang.Exception

Throws:

java.lang.Exception

getAuthMethod

private Socks5ClientConnector.SocksAuthenticationMethod getAuthMethod(byte value)

getRawAddress

private static byte[] getRawAddress(@NonNull
                                    java.net.InetSocketAddress address)

getGSSContext

private static org.ietf.jgss.GSSContext getGSSContext(@NonNull
                                                      java.net.InetSocketAddress address)