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qsslcipher.cpp

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/*!
    \class QSslCipher
    \brief The QSslCipher class represents an SSL cryptographic cipher.
    \since 4.3

    \reentrant
    \ingroup io
    \module network

    QSslCipher stores information about one cryptographic cipher. It
    is most commonly used with QSslSocket, either for configuring
    which ciphers the socket can use, or for displaying the socket's
    ciphers to the user.

    \sa QSslSocket, QSslKey
*/

#include "qsslcipher.h"
#include "qsslcipher_p.h"
#include "qsslsocket.h"

#ifndef QT_NO_DEBUG_STREAM
#include <QtCore/qdebug.h>
#endif

/*!
    Constructs an empty QSslCipher object.
*/
00087 QSslCipher::QSslCipher()
    : d(new QSslCipherPrivate)
{
}

/*!
    Constructs a QSslCipher object for the cipher determined by \a
    name and \a protocol. The constructor accepts only supported
    ciphers (i.e., the \a name and \a protocol must identify a cipher
    in the list of ciphers returned by
    QSslSocket::supportedCiphers()).

    You can call isNull() after construction to check if \a name and
    \a protocol correctly identified a supported cipher.
*/
00102 QSslCipher::QSslCipher(const QString &name, QSsl::SslProtocol protocol)
    : d(new QSslCipherPrivate)
{
    foreach (const QSslCipher &cipher, QSslSocket::supportedCiphers()) {
        if (cipher.name() == name && cipher.protocol() == protocol) {
            *this = cipher;
            return;
        }
    }
}

/*!
    Constructs an identical copy of the \a other cipher.
*/
00116 QSslCipher::QSslCipher(const QSslCipher &other)
    : d(new QSslCipherPrivate)
{
    *d = *other.d;
}

/*!
    Destroys the QSslCipher object.
*/
00125 QSslCipher::~QSslCipher()
{
    delete d;
}

/*!
    Copies the contents of \a other into this cipher, making the two
    ciphers identical.
*/
00134 QSslCipher &QSslCipher::operator=(const QSslCipher &other)
{
    *d = *other.d;
    return *this;
}

/*!
    Returns true if this cipher is the same as \a other; otherwise,
    false is returned.
*/
00144 bool QSslCipher::operator==(const QSslCipher &other) const
{
    return d->name == other.d->name && d->protocol == other.d->protocol;
}

/*!
    \fn bool QSslCipher::operator!=(const QSslCipher &other) const

    Returns true if this cipher is not the same as \a other;
    otherwise, false is returned.
*/

/*!
    Returns true if this is a null cipher; otherwise returns false.
*/
00159 bool QSslCipher::isNull() const
{
    return d->isNull;
}

/*!
    Returns the name of the cipher, or an empty QString if this is a null
    cipher.

    \sa isNull()
*/
00170 QString QSslCipher::name() const
{
    return d->name;
}

/*!
    Returns the number of bits supported by the cipher.

    \sa usedBits()
*/
00180 int QSslCipher::supportedBits()const
{
    return d->supportedBits;
}

/*!
    Returns the number of bits used by the cipher.

    \sa supportedBits()
*/
00190 int QSslCipher::usedBits() const
{
    return d->bits;
}

/*!
    Returns the cipher's key exchange method as a QString.
*/
00198 QString QSslCipher::keyExchangeMethod() const
{
    return d->keyExchangeMethod;
}
 
/*!
    Returns the cipher's authentication method as a QString.
*/
00206 QString QSslCipher::authenticationMethod() const
{
    return d->authenticationMethod;
}

/*!
    Returns the cipher's encryption method as a QString.
*/
00214 QString QSslCipher::encryptionMethod() const
{
    return d->encryptionMethod;
}

/*!
    Returns the cipher's protocol as a QString.

    \sa protocol()
*/
00224 QString QSslCipher::protocolString() const
{
    return d->protocolString;
}

/*!
    Returns the cipher's protocol type, or \l QSsl::UnknownProtocol if
    QSslCipher is unable to determine the protocol (protocolString() may
    contain more information).

    \sa protocolString()
*/
00236 QSsl::SslProtocol QSslCipher::protocol() const
{
    return d->protocol;
}

#ifndef QT_NO_DEBUG_STREAM
QDebug operator<<(QDebug debug, const QSslCipher &cipher)
{
    debug << "QSslCipher(name=" << qPrintable(cipher.name())
          << ", bits=" << cipher.usedBits()
          << ", proto=" << qPrintable(cipher.protocolString())
          << ")";
    return debug;
}
#endif

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