gloox  1.1-svn
Public Member Functions | List of all members
ConnectionSOCKS5Proxy Class Reference

#include <connectionsocks5proxy.h>

Inheritance diagram for ConnectionSOCKS5Proxy:
Inheritance graph
[legend]

Public Member Functions

 ConnectionSOCKS5Proxy (ConnectionBase *connection, const LogSink &logInstance, const std::string &server, int port=-1, bool ip=false)
 ConnectionSOCKS5Proxy (ConnectionDataHandler *cdh, ConnectionBase *connection, const LogSink &logInstance, const std::string &server, int port=-1, bool ip=false)
virtual ~ConnectionSOCKS5Proxy ()
virtual ConnectionError connect ()
virtual ConnectionError recv (int timeout=-1)
virtual bool send (const std::string &data)
virtual ConnectionError receive ()
virtual void disconnect ()
virtual void cleanup ()
virtual void getStatistics (long int &totalIn, long int &totalOut)
virtual void handleReceivedData (const ConnectionBase *connection, const std::string &data)
virtual void handleConnect (const ConnectionBase *connection)
virtual void handleDisconnect (const ConnectionBase *connection, ConnectionError reason)
virtual ConnectionBasenewInstance () const
void setServer (const std::string &host, int port=-1, bool ip=false)
void setProxyAuth (const std::string &user, const std::string &password)
void setConnectionImpl (ConnectionBase *connection)
- Public Member Functions inherited from ConnectionBase
 ConnectionBase (ConnectionDataHandler *cdh)
virtual ~ConnectionBase ()
ConnectionState state () const
void registerConnectionDataHandler (ConnectionDataHandler *cdh)
void setServer (const std::string &server, int port=-1)
const std::string & server () const
int port () const
virtual int localPort () const
virtual const std::string localInterface () const
- Public Member Functions inherited from ConnectionDataHandler
virtual ~ConnectionDataHandler ()

Additional Inherited Members

- Protected Attributes inherited from ConnectionBase
ConnectionDataHandlerm_handler
ConnectionState m_state
std::string m_server
int m_port

Detailed Description

This is an implementation of a simple SOCKS5 Proxying connection (RFC 1928 + RFC 1929).

To use with a SOCKS5 proxy:

Client* c = new Client( ... );
c->setConnectionImpl( new ConnectionSOCKS5Proxy( c,
new ConnectionTCPClient( c->logInstance(), proxyHost, proxyPort ),
c->logInstance(), xmppHost, xmppPort ) );

Make sure to pass the proxy host/port to the transport connection (ConnectionTCPClient in this case), and the XMPP host/port to the proxy connection.

The reason why ConnectionSOCKS5Proxy doesn't manage its own ConnectionTCPClient is that it allows it to be used with other transports (like IPv6 or chained HTTP/SOCKS5 proxies).

Note
This class is also used by the SOCKS5 bytestreams implementation (with slightly different semantics).
Simple plain-text username/password authentication is supported. GSSAPI authentication is not supported.
Author
Jakob Schroeter js@ca.nosp@m.maya.nosp@m..net
Since
0.9

Definition at line 53 of file connectionsocks5proxy.h.

Constructor & Destructor Documentation

ConnectionSOCKS5Proxy ( ConnectionBase connection,
const LogSink logInstance,
const std::string &  server,
int  port = -1,
bool  ip = false 
)

Constructs a new ConnectionSOCKS5Proxy object.

Parameters
connectionA transport connection. It should be configured to connect to the proxy host and port, not to the (XMPP) host. ConnectionSOCKS5Proxy will own the transport connection and delete it in its destructor.
logInstanceThe log target. Obtain it from ClientBase::logInstance().
serverA server to connect to. This is the XMPP server's address, not the proxy.
portThe proxy's port to connect to. This is the (XMPP) server's port, not the proxy's. The default of -1 means that SRV records will be used to find out about the actual host:port.
ipIndicates whether server is an IP address (true) or a host name (false).
Note
To properly use this object, you have to set a ConnectionDataHandler using registerConnectionDataHandler(). This is not necessary if this object is part of a 'connection chain', e.g. with ConnectionHTTPProxy.

Definition at line 44 of file connectionsocks5proxy.cpp.

ConnectionSOCKS5Proxy ( ConnectionDataHandler cdh,
ConnectionBase connection,
const LogSink logInstance,
const std::string &  server,
int  port = -1,
bool  ip = false 
)

Constructs a new ConnectionSOCKS5Proxy object.

Parameters
cdhA ConnectionDataHandler-derived object that will handle incoming data.
connectionA transport connection. It should be configured to connect to the proxy host and port, not to the (XMPP) host. ConnectionSOCKS5Proxy will own the transport connection and delete it in its destructor.
logInstanceThe log target. Obtain it from ClientBase::logInstance().
serverA server to connect to. This is the XMPP server's address, not the proxy.
portThe proxy's port to connect to. This is the (XMPP) server's port, not the proxy's. The default of -1 means that SRV records will be used to find out about the actual host:port.
ipIndicates whether server is an IP address (true) or a host name (false).

Definition at line 59 of file connectionsocks5proxy.cpp.

~ConnectionSOCKS5Proxy ( )
virtual

Virtual destructor

Definition at line 75 of file connectionsocks5proxy.cpp.

Member Function Documentation

void cleanup ( )
virtual

This function is called after a disconnect to clean up internal state. It is also called by ConnectionBase's destructor.

Reimplemented from ConnectionBase.

Definition at line 155 of file connectionsocks5proxy.cpp.

ConnectionError connect ( )
virtual

Used to initiate the connection.

Returns
Returns the connection state.

Implements ConnectionBase.

Definition at line 95 of file connectionsocks5proxy.cpp.

void disconnect ( )
virtual

Disconnects an established connection. NOOP if no active connection exists.

Implements ConnectionBase.

Definition at line 115 of file connectionsocks5proxy.cpp.

void getStatistics ( long int &  totalIn,
long int &  totalOut 
)
virtual

Returns current connection statistics.

Parameters
totalInThe total number of bytes received.
totalOutThe total number of bytes sent.

Implements ConnectionBase.

Definition at line 164 of file connectionsocks5proxy.cpp.

void handleConnect ( const ConnectionBase connection)
virtual

This function is called when e.g. the raw TCP connection was established.

Parameters
connectionThe connection.

Implements ConnectionDataHandler.

Definition at line 330 of file connectionsocks5proxy.cpp.

void handleDisconnect ( const ConnectionBase connection,
ConnectionError  reason 
)
virtual

This connection is called when e.g. the raw TCP connection was closed.

Parameters
connectionThe connection.
reasonThe reason for the disconnect.

Implements ConnectionDataHandler.

Definition at line 367 of file connectionsocks5proxy.cpp.

void handleReceivedData ( const ConnectionBase connection,
const std::string &  data 
)
virtual

This function is called for received from the underlying transport.

Parameters
connectionThe connection that received the data.
dataThe data received.

Implements ConnectionDataHandler.

Definition at line 175 of file connectionsocks5proxy.cpp.

ConnectionBase * newInstance ( ) const
virtual

This function returns a new instance of the current ConnectionBase-derived object. The idea is to be able to 'clone' ConnectionBase-derived objects without knowing of what type they are exactly.

Returns
A new Connection* instance.

Implements ConnectionBase.

Definition at line 81 of file connectionsocks5proxy.cpp.

ConnectionError receive ( )
virtual

Use this function to put the connection into 'receive mode', i.e. this function returns only when the connection is terminated.

Returns
Returns a value indicating the disconnection reason.

Implements ConnectionBase.

Definition at line 130 of file connectionsocks5proxy.cpp.

ConnectionError recv ( int  timeout = -1)
virtual

Use this periodically to receive data from the socket.

Parameters
timeoutThe timeout to use for select in microseconds. Default of -1 means blocking.
Returns
The state of the connection.

Implements ConnectionBase.

Definition at line 122 of file connectionsocks5proxy.cpp.

bool send ( const std::string &  data)
virtual

Use this function to send a string of data over the wire. The function returns only after all data has been sent.

Parameters
dataThe data to send.
Returns
True if the data has been sent (no guarantee of receipt), false in case of an error.

Implements ConnectionBase.

Definition at line 138 of file connectionsocks5proxy.cpp.

void setConnectionImpl ( ConnectionBase connection)

Sets the underlying transport connection. A possibly existing connection will be deleted.

Parameters
connectionThe ConnectionBase to replace the current connection, if any.

Definition at line 87 of file connectionsocks5proxy.cpp.

void setProxyAuth ( const std::string &  user,
const std::string &  password 
)
inline

Sets proxy authorization credentials.

Parameters
userThe user name to use for proxy authorization.
passwordThe password to use for proxy authorization.

Definition at line 142 of file connectionsocks5proxy.h.

void setServer ( const std::string &  host,
int  port = -1,
bool  ip = false 
)
inline

Sets the server to proxy to.

Parameters
hostThe server hostname (IP address).
portThe server port. The default of -1 means that SRV records will be used to find out about the actual host:port.
ipIndicates whether host is an IP address (true) or a host name (false).

Definition at line 134 of file connectionsocks5proxy.h.


The documentation for this class was generated from the following files: