/****************************************************************************
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****************************************************************************/


#ifndef QSSLCONTEXT_H
#define QSSLCONTEXT_H

#include <QtCore/qvariant.h>
#include <QtNetwork/qsslcertificate.h>
#include <QtNetwork/qsslconfiguration.h>
#include <openssl/ssl.h>

QT_BEGIN_NAMESPACE

#ifndef QT_NO_SSL

class QSslContextPrivate;

class QSslContext
{
public:

    ~QSslContext();

    static QSslContext* fromConfiguration(QSslSocket::SslMode mode, const QSslConfiguration &configuration,
                                          bool allowRootCertOnDemandLoading);

    QSslError::SslError error() const;
    QString errorString() const;

    SSL* createSsl();
    bool cacheSession(SSL*); // should be called when handshake completed

    QByteArray sessionASN1() const;
    void setSessionASN1(const QByteArray &sessionASN1);
    int sessionTicketLifeTimeHint() const;

#if OPENSSL_VERSION_NUMBER >= 0x1000100fL && !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
    // must be public because we want to use it from an OpenSSL callback
    struct NPNContext {
        NPNContext() : data(0),
            len(0),
            status(QSslConfiguration::NextProtocolNegotiationNone)
        { }
        unsigned char *data;
        unsigned short len;
        QSslConfiguration::NextProtocolNegotiationStatus status;
    };
    NPNContext npnContext() const;
#endif // OPENSSL_VERSION_NUMBER >= 0x1000100fL ...

protected:
    QSslContext();

private:
    SSL_CTX* ctx;
    EVP_PKEY *pkey;
    SSL_SESSION *session;
    QByteArray m_sessionASN1;
    int m_sessionTicketLifeTimeHint;
    QSslError::SslError errorCode;
    QString errorStr;
    QSslConfiguration sslConfiguration;
#if OPENSSL_VERSION_NUMBER >= 0x1000100fL && !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG)
    QByteArray m_supportedNPNVersions;
    NPNContext m_npnContext;
#endif // OPENSSL_VERSION_NUMBER >= 0x1000100fL ...
};

#endif // QT_NO_SSL

QT_END_NAMESPACE

#endif // QSSLCONTEXT_H
