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++ // Copyright (C) 2017 basysKom GmbH, opensource@basyskom.com
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
++ // Qt-Security score:significant reason:default
++
++ #include <private/qopcuabackend_p.h>
++
++ QT_BEGIN_NAMESPACE
++
++ using namespace Qt::Literals::StringLiterals;
++
++ QOpcUaBackend::QOpcUaBackend()
++ : QObject()
++ {}
++
++ QOpcUaBackend::~QOpcUaBackend()
++ {}
++
++ // All attributes except Value have a fixed type.
++ // A mapping between attribute id and type can be used to simplify the API for writing multiple attributes at once.
++ QOpcUa::Types QOpcUaBackend::attributeIdToTypeId(QOpcUa::NodeAttribute attr)
++ {
++ switch (attr) {
++ case QOpcUa::NodeAttribute::NodeId:
++ case QOpcUa::NodeAttribute::DataType:
++ return QOpcUa::Types::NodeId;
++ // case QOpcUa::NodeAttribute::NodeClass: TODO: Add support for the NodeClass type
++ // return QOpcUa::Types::NodeClass;
++ case QOpcUa::NodeAttribute::BrowseName:
++ return QOpcUa::Types::QualifiedName;
++ case QOpcUa::NodeAttribute::DisplayName:
++ case QOpcUa::NodeAttribute::Description:
++ case QOpcUa::NodeAttribute::InverseName:
++ return QOpcUa::Types::LocalizedText;
++ case QOpcUa::NodeAttribute::WriteMask:
++ case QOpcUa::NodeAttribute::UserWriteMask:
++ case QOpcUa::NodeAttribute::ValueRank:
++ case QOpcUa::NodeAttribute::ArrayDimensions:
++ return QOpcUa::Types::UInt32;
++ case QOpcUa::NodeAttribute::IsAbstract:
++ case QOpcUa::NodeAttribute::Symmetric:
++ case QOpcUa::NodeAttribute::ContainsNoLoops:
++ case QOpcUa::NodeAttribute::Historizing:
++ case QOpcUa::NodeAttribute::Executable:
++ case QOpcUa::NodeAttribute::UserExecutable:
++ return QOpcUa::Types::Boolean;
++ case QOpcUa::NodeAttribute::EventNotifier:
++ case QOpcUa::NodeAttribute::AccessLevel:
++ case QOpcUa::NodeAttribute::UserAccessLevel:
++ return QOpcUa::Types::Byte;
++ case QOpcUa::NodeAttribute::MinimumSamplingInterval:
++ return QOpcUa::Types::Double;
++ default:
++ return QOpcUa::Types::Undefined;
++ }
++ }
++
++ double QOpcUaBackend::revisePublishingInterval(double requestedValue, double minimumValue)
++ {
++ return (std::max)(requestedValue, minimumValue);
++ }
++
++ /*!
++ This function returns \l QOpcUaClient::ClientError::NoError if the given endpoint description is valid.
++ If \a message is not \nullptr, an error message will be assigned to it, in case
++ the endpoint description is invalid.
++ */
++ QOpcUaClient::ClientError QOpcUaBackend::verifyEndpointDescription(const QOpcUaEndpointDescription &endpoint, QString *message)
++ {
++ if (endpoint.endpointUrl().isEmpty()) {
++ if (message)
++ *message = u"Endpoint description is invalid because endpoint URL is empty"_s;
++ return QOpcUaClient::ClientError::InvalidUrl;
++ }
++
++ const QUrl url(endpoint.endpointUrl());
++ if (!url.isValid() || url.scheme() != "opc.tcp"_L1) {
++ if (message)
++ *message = u"Endpoint description is invalid because the URL is invalid or malformed"_s;
++ return QOpcUaClient::ClientError::InvalidUrl;
++ }
++
++ if (endpoint.securityPolicy().isEmpty()) {
++ if (message)
++ *message = u"Endpoint description is invalid because security policy is empty"_s;
++ return QOpcUaClient::ClientError::InvalidEndpointDescription;
++ }
++
++ if (endpoint.userIdentityTokens().isEmpty()) {
++ if (message)
++ *message = u"Endpoint description is invalid because there are no user identity tokens"_s;
++ return QOpcUaClient::ClientError::NoMatchingUserIdentityTokenFound;
++ }
++
++ if (endpoint.securityMode() != QOpcUaEndpointDescription::MessageSecurityMode::None &&
++ endpoint.securityMode() != QOpcUaEndpointDescription::MessageSecurityMode::Sign &&
++ endpoint.securityMode() != QOpcUaEndpointDescription::MessageSecurityMode::SignAndEncrypt)
++ {
++ if (message)
++ *message = u"Endpoint description contains an invalid message security mode"_s;
++ return QOpcUaClient::ClientError::InvalidEndpointDescription;
++ }
++
++ return QOpcUaClient::ClientError::NoError;
++ }
++
++ QT_END_NAMESPACE