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177 lines
4.7 KiB
177 lines
4.7 KiB
/*
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* This file is part of the KFTPGrabber project
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*
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* Copyright (C) 2003-2006 by the KFTPGrabber developers
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* Copyright (C) 2003-2006 Jernej Kos <kostko@jweb-network.net>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* is provided AS IS, WITHOUT ANY WARRANTY; without even the implied
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* warranty of MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, and
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* NON-INFRINGEMENT. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Steet, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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* In addition, as a special exception, the copyright holders give
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* permission to link the code of portions of this program with the
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* OpenSSL library under certain conditions as described in each
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* individual source file, and distribute linked combinations
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* including the two.
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*
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* You must obey the GNU General Public License in all respects
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* for all of the code used other than OpenSSL. If you modify
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* file(s) with this exception, you may extend this exception to your
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* version of the file(s), but you are not obligated to do so. If you
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* do not wish to do so, delete this exception statement from your
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* version. If you delete this exception statement from all source
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* files in the program, then also delete it here.
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*/
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#ifndef KFTPENGINESSL_H
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#define KFTPENGINESSL_H
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#include <kstreamsocket.h>
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#include <ksslcertificate.h>
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#include <ksslpkcs12.h>
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namespace KFTPEngine {
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/**
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* This class contains information about the currently established SSL
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* connection.
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*
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* @author Jernej Kos
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*/
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class SslConnectionInfo {
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friend class Ssl;
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public:
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/**
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* Get the cipher in use.
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*/
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const TQString &getCipher() const { return m_cipherName; }
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/**
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* Describe the cipher in use.
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*/
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const TQString &getCipherDescription() const { return m_cipherDescription; }
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/**
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* Get the version of the cipher in use.
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*/
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const TQString &getCipherVersion() const { return m_cipherVersion; }
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/**
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* Get the number of bits of the cipher that are actually used.
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*/
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int getCipherUsedBits() const { return m_cipherUsedBits; }
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/**
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* Get bit-size of the cipher.
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*/
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int getCipherBits() const { return m_cipherBits; }
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protected:
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/**
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* Class constructor.
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*/
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SslConnectionInfo() {}
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int m_cipherUsedBits;
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int m_cipherBits;
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TQString m_cipherName;
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TQString m_cipherDescription;
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TQString m_cipherVersion;
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};
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/**
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* A class that properly handles asynchronious SSL connections.
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*
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* @author Jernej Kos
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*/
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class Ssl {
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public:
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/**
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* Class constructor.
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*
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* @param socket The socket to use as transport
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*/
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Ssl(KNetwork::KStreamSocket *socket);
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/**
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* Class destructor.
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*/
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~Ssl();
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/**
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* Start the SSL handshake. This method will block until the
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* handshake is completed.
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*
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* @return True if the handshake was successful, false otherwise
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*/
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bool connect();
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/**
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* Close the SSL connection and deallocate resources.
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*/
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void close();
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/**
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* Read from the underlying socket.
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*
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* @param buffer The tarrget buffer
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* @param bytes Maximum number of bytes to read
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* @return Number of bytes actually read or -1 in case of an error
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*/
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int read(void *buffer, int bytes);
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/**
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* Write to the underlying socket.
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*
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* @param buffer The source buffer
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* @param bytes Number of bytes to write
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* @return Number of bytes actually written or -1 in case of an error
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*/
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int write(void *buffer, int bytes);
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/**
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* Obtain a reference to the connection information.
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*
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* @return A reference ot the connection information, valid after connected
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*/
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SslConnectionInfo &connectionInfo();
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/**
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* Set the client certificate to use.
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*
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* @return True if the certificate was successfuly set
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*/
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bool setClientCertificate(KSSLPKCS12 *pkcs);
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private:
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class Private;
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Private *d;
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KNetwork::KStreamSocket *m_socket;
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SslConnectionInfo m_connectionInfo;
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protected:
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/**
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* Initialize the SSL session for operation.
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*/
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void initialize();
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/**
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* Populate the connection info object with data retrieved from the SSL
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* socket. Note that the socket has to be connected!
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*/
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void setConnectionInfo();
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};
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}
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#endif
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