Method authenticate

src/Server/MySQLHandler.cpp:420–446

}

void MySQLHandler::authenticate(const String & user_name, const String & auth_plugin_name, const String & initial_auth_response)
{
    try
    {
        const auto user_authentication_types = session->getAuthenticationTypesOrLogInFailure(user_name);

        for (const auto user_authentication_type : user_authentication_types)
        {
            // For compatibility with JavaScript MySQL client, Native41 authentication plugin is used when possible
            // (if password is specified using double SHA1). Otherwise, SHA256 plugin is used.
            if (user_authentication_type == DB::AuthenticationType::SHA256_PASSWORD)
            {
                authPluginSSL();
            }
        }

        std::optional<String> auth_response = auth_plugin_name == auth_plugin->getName() ? std::make_optional<String>(initial_auth_response) : std::nullopt;
        auth_plugin->authenticate(user_name, *session, auth_response, packet_endpoint, secure_connection, socket().peerAddress());
    }
    catch (const Exception & exc)
    {
        LOG_ERROR(log, "Authentication for user {} failed.", user_name);
        packet_endpoint->sendPacket(ERRPacket(exc.code(), mysql_error_code, exc.message()));
        throw;
    }
    LOG_DEBUG(log, "Authentication for user {} succeeded.", user_name);
}

void MySQLHandler::comInitDB(ReadBuffer & payload)
{