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#include "qwebengineclientcertificatestore.h"

#include "net/client_cert_store_data.h"

#include <QByteArray>
#include <QList>

QT_BEGIN_NAMESPACE

#if QT_CONFIG(ssl)

QWebEngineClientCertificateStore *QWebEngineClientCertificateStore::m_instance = nullptr;

/*!
    \class QWebEngineClientCertificateStore::Entry
    \inmodule QtWebEngineCore
    \since 5.13
    \brief This structure holds the certificate and the private key.
*/

/*!
    \class QWebEngineClientCertificateStore
    \inmodule QtWebEngineCore
    \since 5.13
    \brief The QWebEngineClientCertificateStore class provides an in-memory store for client certificates.

    The class allows to store client certificates in an in-memory store.
    When a web site requests an SSL client certificate, the QWebEnginePage::selectClientCertificate
    signal is emitted with matching certificates from the native certificate store or the in-memory store.
    The getInstance() method can be used to access the single instance of the class.
*/

QWebEngineClientCertificateStore::QWebEngineClientCertificateStore()
        : d_ptr(new QtWebEngineCore::ClientCertificateStoreData)
{
}

/*!
    Destroys this QWebEngineClientCertificateStore object.
*/

QWebEngineClientCertificateStore::~QWebEngineClientCertificateStore()
{
    // Just in case user has not deleted in-memory certificates
    clear();
}

/*!
    Returns an in-memory client certificate store.
*/

QWebEngineClientCertificateStore *QWebEngineClientCertificateStore::getInstance()
{
    if (!m_instance)
        m_instance = new QWebEngineClientCertificateStore;
    return m_instance;
}

/*!
    Adds a \a certificate with the \a privateKey to the in-memory client certificate store.
*/

void QWebEngineClientCertificateStore::add(const QSslCertificate &certificate, const QSslKey &privateKey)
{
    d_ptr->add(certificate, privateKey);
}

/*!
    Returns a list of private and public keys of client certificates in the in-memory store.
    Returns an empty list if the in-memory store does not contain certificates.
*/

QList<QWebEngineClientCertificateStore::Entry> QWebEngineClientCertificateStore::toList() const
{
    QList<Entry> certificateList;
    for (auto data : qAsConst(d_ptr->addedCerts)) {
        Entry entry;
        entry.certificate = data->certificate;
        entry.privateKey = data->key;
        certificateList.append(entry);
    }
    return certificateList;
}

/*!
    Deletes all the instances of the client certificate in the in-memory client certificate store
    that matches the certificate in the \a entry.
*/

void QWebEngineClientCertificateStore::remove(Entry entry)
{
    auto it = d_ptr->addedCerts.begin();
    while (it != d_ptr->addedCerts.end()) {
        auto *overrideData = *it;
        if (entry.certificate.toDer() == overrideData->certificate.toDer()) {
            d_ptr->deletedCerts.append(overrideData);
            it = d_ptr->addedCerts.erase(it);
            continue;
        }
        ++it;
    }
}

/*!
    Clears all the client certificates from the in-memory store.
*/

void QWebEngineClientCertificateStore::clear()
{
    d_ptr->deletedCerts.append(d_ptr->addedCerts);
    d_ptr->addedCerts.clear();
}

#endif // QT_CONFIG(ssl)

QT_END_NAMESPACE