00001 /* 00002 ** This file is part of Vidalia, and is subject to the license terms in the 00003 ** LICENSE file, found in the top level directory of this distribution. If you 00004 ** did not receive the LICENSE file with this file, you may obtain it from the 00005 ** Vidalia source package distributed by the Vidalia Project at 00006 ** http://www.vidalia-project.net/. No part of Vidalia, including this file, 00007 ** may be copied, modified, propagated, or distributed except according to the 00008 ** terms described in the LICENSE file. 00009 */ 00010 00011 /* 00012 ** \file torsslsocket.h 00013 ** \version $Id: /local/vidalia/trunk/src/util/torsocket.h 1564 2006-12-26T06:06:04.965088Z edmanm $ 00014 ** \brief A QSslSocket that makes encrypted requests over Tor 00015 */ 00016 00017 #ifndef _TORSSLSOCKET_H 00018 #define _TORSSLSOCKET_H 00019 00020 #include <QSslSocket> 00021 #include <QHostAddress> 00022 00023 00024 class TorSslSocket : public QSslSocket 00025 { 00026 Q_OBJECT 00027 00028 public: 00029 /** Constructor. */ 00030 TorSslSocket(const QHostAddress &socksAddr, 00031 quint16 socksPort, QObject *parent = 0); 00032 00033 /** Connects to the specified hostname and port via Tor. */ 00034 void connectToRemoteHost(const QString &remoteHost, quint16 remotePort, 00035 bool encrypted); 00036 00037 signals: 00038 /** Emitted when a connection has been established through Tor to the remote 00039 * host specified in a prior call to connectToHost(). */ 00040 void connectedToRemoteHost(); 00041 /** Emitted when a connection error has occurred. */ 00042 void socketError(QString errmsg); 00043 00044 private slots: 00045 /** Called when the socket is connected to the proxy and sends our 00046 * half of a Socks4a handshake. */ 00047 void connectedToProxy(); 00048 /** Called when an encrypted connection has been established to the remote 00049 * host. */ 00050 void onEncrypted(); 00051 /** Handles the server's response part of a Socks4a handshake. */ 00052 void onHandshakeResponse(); 00053 /** Called when a connection error has occurred. */ 00054 void onError(QAbstractSocket::SocketError error); 00055 /** Called when one or more SSL errors occur on the socket. */ 00056 void onSslErrors(const QList<QSslError> &errors); 00057 00058 private: 00059 /** Sends the client part of a Socks4a handshake with a proxy server. */ 00060 void sendSocksHandshake(const QString &remoteHost, quint16 remotePort); 00061 00062 QHostAddress _socksAddr; /**< Address of Tor's SOCKS listener. */ 00063 QString _remoteHost; /**< Remote hostname. */ 00064 quint16 _socksPort; /**< Port of Tor's SOCKS listener. */ 00065 quint16 _remotePort; /**< Remote host port. */ 00066 bool _encrypted; /**< Set to true if the connection to the remote 00067 host should be encrypted. */ 00068 }; 00069 00070 #endif 00071