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157 lines
3.7 KiB
157 lines
3.7 KiB
15 years ago
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/*
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securestream.h - Kopete Groupwise Protocol
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Combines a ByteStream with TLS and SASL
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Copyright (c) 2004 SUSE Linux AG http://www.suse.com
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Based on Iris, Copyright (C) 2003 Justin Karneges
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Kopete (c) 2002-2004 by the Kopete developers <kopete-devel@kde.org>
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*************************************************************************
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Lesser General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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*************************************************************************
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*/
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#ifndef SECURESTREAM_H
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#define SECURESTREAM_H
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#include<qca.h>
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#include "tlshandler.h"
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#include"bytestream.h"
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#define USE_TLSHANDLER
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#ifdef USE_TLSHANDLER
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class TLSHandler;
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#endif
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class SecureStream : public ByteStream
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{
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Q_OBJECT
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public:
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enum Error { ErrTLS = ErrCustom, ErrSASL };
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SecureStream(ByteStream *s);
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~SecureStream();
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void startTLSClient(QCA::TLS *t, const QByteArray &spare=QByteArray());
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void startTLSServer(QCA::TLS *t, const QByteArray &spare=QByteArray());
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void setLayerSASL(QCA::SASL *s, const QByteArray &spare=QByteArray());
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#ifdef USE_TLSHANDLER
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void startTLSClient(TLSHandler *t, const QString &server, const QByteArray &spare=QByteArray());
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#endif
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void closeTLS();
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int errorCode() const;
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// reimplemented
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bool isOpen() const;
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void write(const QByteArray &);
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int bytesToWrite() const;
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signals:
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void tlsHandshaken();
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void tlsClosed();
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private slots:
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void bs_readyRead();
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void bs_bytesWritten(int);
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void layer_tlsHandshaken();
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void layer_tlsClosed(const QByteArray &);
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void layer_readyRead(const QByteArray &);
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void layer_needWrite(const QByteArray &);
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void layer_error(int);
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private:
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void linkLayer(QObject *);
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int calcPrebytes() const;
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void insertData(const QByteArray &a);
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void writeRawData(const QByteArray &a);
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void incomingData(const QByteArray &a);
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class Private;
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Private *d;
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};
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class LayerTracker
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{
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public:
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struct Item
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{
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int plain;
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int encoded;
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};
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USE_TLSHANDLER
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LayerTracker();
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void reset();
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void addPlain(int plain);
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void specifyEncoded(int encoded, int plain);
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int finished(int encoded);
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int p;
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QValueList<Item> list;
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};
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class SecureLayer : public QObject
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{
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Q_OBJECT
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public:
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SecureLayer(QCA::TLS *t);
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SecureLayer(QCA::SASL *s);
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#ifdef USE_TLSHANDLER
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SecureLayer(TLSHandler *t);
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#endif
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void init();
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void write(const QByteArray &a);
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void writeIncoming(const QByteArray &a);
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int finished(int plain);
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enum { TLS, SASL, TLSH };
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int type;
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union {
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QCA::TLS *tls;
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QCA::SASL *sasl;
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#ifdef USE_TLSHANDLER
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TLSHandler *tlsHandler;
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#endif
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} p;
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LayerTracker layer;
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bool tls_done;
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int prebytes;
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signals:
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void tlsHandshaken();
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void tlsClosed(const QByteArray &);
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void readyRead(const QByteArray &);
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void needWrite(const QByteArray &);
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void error(int);
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private slots:
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void tls_handshaken();
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void tls_readyRead();
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void tls_readyReadOutgoing(int plainBytes);
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void tls_closed();
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void tls_error(int x);
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void sasl_readyRead();
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void sasl_readyReadOutgoing(int plainBytes);
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void sasl_error(int x);
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#ifdef USE_TLSHANDLER
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void tlsHandler_success();
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void tlsHandler_fail();
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void tlsHandler_closed();
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void tlsHandler_readyRead(const QByteArray &a);
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void tlsHandler_readyReadOutgoing(const QByteArray &a, int plainBytes);
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#endif
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};
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#endif
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