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#include "smtpauthenticator.h"

#include "smtpconfiguration.h"

#include <qmailauthenticator.h>

QList<QByteArray> SmtpAuthenticator::getAuthentication(const SmtpConfiguration &svcCfg,
                                                       const QMailCredentialsInterface &credentials)
{
    QByteArray generic(QMailAuthenticator::getAuthentication(svcCfg, credentials));
    if (!generic.isEmpty())
        return QList<QByteArray>() << generic.prepend("AUTH ");

    QList<QByteArray> result;
    if (svcCfg.smtpAuthentication() == SmtpConfiguration::Auth_XOAUTH2) {
        result << QByteArray("AUTH XOAUTH2");
        result << QString::fromLatin1("user=%1\001auth=Bearer %2\001\001").arg(svcCfg.smtpUsername()).arg(credentials.accessToken()).toUtf8().toBase64();
    }
#ifndef QT_NO_SSL
    else if (svcCfg.smtpAuthentication() == SmtpConfiguration::Auth_LOGIN) {
        result << QByteArray("AUTH LOGIN");
        result << credentials.username().toUtf8().toBase64();
        result << credentials.password().toUtf8().toBase64();
    } else if (svcCfg.smtpAuthentication() == SmtpConfiguration::Auth_PLAIN) {
        QByteArray username(credentials.username().toUtf8());
        QByteArray password(credentials.password().toUtf8());
        result << QByteArray("AUTH PLAIN ") + QByteArray(username + '\0' + username + '\0' + password).toBase64();
        result << QByteArray(username + '\0' + username + '\0' + password).toBase64();
    }
#endif

    return result;
}

QByteArray SmtpAuthenticator::getResponse(const SmtpConfiguration &svcCfg,
                                          const QByteArray &challenge,
                                          const QMailCredentialsInterface &credentials)
{
    return QMailAuthenticator::getResponse(svcCfg, challenge, credentials);
}
