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#include "qocspresponse_p.h"
#include "qocspresponse.h"

#include "qhashfunctions.h"

QT_BEGIN_NAMESPACE

/*!
    \class QOcspResponse
    \brief This class represents Online Certificate Status Protocol response.
    \since 5.13

    \ingroup network
    \ingroup ssl
    \inmodule QtNetwork

    The QOcspResponse class represents the revocation status of a server's certficate,
    received by the client-side socket during the TLS handshake. QSslSocket must be
    configured with OCSP stapling enabled.

    \sa QSslSocket, QSslSocket::ocspResponses(), certificateStatus(),
    revocationReason(), responder(), subject(), QOcspCertificateStatus, QOcspRevocationReason,
    QSslConfiguration::setOcspStaplingEnabled(), QSslConfiguration::ocspStaplingEnabled(),
    QSslConfiguration::peerCertificate()
*/

/*!
    \enum QOcspCertificateStatus
    \brief Describes the Online Certificate Status
    \relates QOcspResponse
    \since 5.13

    \ingroup network
    \ingroup ssl
    \inmodule QtNetwork

    \value Good The certificate is not revoked, but this does not necessarily
           mean that the certificate was ever issued or that the time at which
           the response was produced is within the certificate's validity interval.
    \value Revoked This state indicates that the certificate has been revoked
           (either permanently or temporarily - on hold).
    \value Unknown This state indicates that the responder doesn't know about
           the certificate being requested.

    \sa QOcspRevocationReason
*/

/*!
    \enum QOcspRevocationReason
    \brief Describes the reason for revocation
    \relates QOcspResponse
    \since 5.13

    \ingroup network
    \ingroup ssl
    \inmodule QtNetwork


    This enumeration describes revocation reasons, defined in \l{https://tools.ietf.org/html/rfc5280#section-5.3.1}{RFC 5280, section 5.3.1}

    \value None
    \value Unspecified
    \value KeyCompromise
    \value CACompromise
    \value AffiliationChanged
    \value Superseded
    \value CessationOfOperation
    \value CertificateHold
    \value RemoveFromCRL
*/

/*!
    \since 5.13

    Creates a new response with status QOcspCertificateStatus::Unknown
    and revocation reason QOcspRevocationReason::None.

    \sa QOcspCertificateStatus
*/
QOcspResponse::QOcspResponse()
    : d(new QOcspResponsePrivate)
{
}

/*!
    \since 5.13

    Copy-constructs a QOcspResponse instance.
*/
QOcspResponse::QOcspResponse(const QOcspResponse &) = default;

/*!
    \since 5.13

    Move-constructs a QOcspResponse instance.
*/
QOcspResponse::QOcspResponse(QOcspResponse &&) noexcept = default;

/*!
    \since 5.13

    Destroys the response.
*/
QOcspResponse::~QOcspResponse() = default;

/*!
    \since 5.13

    Copy-assigns and returns a reference to this response.
*/
QOcspResponse &QOcspResponse::operator=(const QOcspResponse &) = default;

/*!
    \since 5.13

    Move-assigns to this QOcspResponse instance.
*/
QOcspResponse &QOcspResponse::operator=(QOcspResponse &&) noexcept = default;

/*!
    \fn void QOcspResponse::swap(QOcspResponse &other)
    \since 5.13

    Swaps this response with \a other.
*/

/*!
    \since 5.13

    Returns the certificate status.

    \sa QOcspCertificateStatus
*/
QOcspCertificateStatus QOcspResponse::certificateStatus() const
{
    return d->certificateStatus;
}

/*!
    \since 5.13

    Returns the reason for revocation.
*/
QOcspRevocationReason QOcspResponse::revocationReason() const
{
    return d->revocationReason;
}

/*!
    \since 5.13

    This function returns a certificate used to sign OCSP response.
*/
QSslCertificate QOcspResponse::responder() const
{
    return d->signerCert;
}

/*!
    \since 5.13

    This function returns a certificate, for which this response was issued.
*/
QSslCertificate QOcspResponse::subject() const
{
    return d->subjectCert;
}

/*!
    \fn bool operator==(const QOcspResponse &lhs, const QOcspResponse &rhs)

    Returns \c true if \a lhs and \a rhs are the responses for the same
    certificate, signed by the same responder, have the same
    revocation reason and the same certificate status.

    \since 5.13
    \relates QOcspResponse
 */
Q_NETWORK_EXPORT bool operator==(const QOcspResponse &lhs, const QOcspResponse &rhs)
{
    return lhs.d == rhs.d || *lhs.d == *rhs.d;
}

/*!
  \fn bool operator != (const QOcspResponse &lhs, const QOcspResponse &rhs)

  Returns \c true if \a lhs and \a rhs are responses for different certificates,
  or signed by different responders, or have different revocation reasons, or different
  certificate statuses.

  \since 5.13
  \relates QOcspResponse
*/

/*!
    \fn uint qHash(const QOcspResponse &response, uint seed)

    Returns the hash value for the \a response, using \a seed to seed the calculation.

    \since 5.13
    \relates QHash
*/
uint qHash(const QOcspResponse &response, uint seed) noexcept
{
    const QOcspResponsePrivate *d = response.d.data();
    Q_ASSERT(d);

    QtPrivate::QHashCombine hasher;
    uint hash = hasher(seed, int(d->certificateStatus));
    hash = hasher(hash, int(d->revocationReason));
    if (!d->signerCert.isNull())
        hash = hasher(hash, d->signerCert);
    if (!d->subjectCert.isNull())
        hash = hasher(hash, d->subjectCert);

    return hash;
}

QT_END_NAMESPACE