// Copyright (C) 2017 Witekio. // Copyright (C) 2018 The Qt Company Ltd. // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only #include "qcoapinternalmessage_p.h" #include "qcoaprequest_p.h" #include #include QT_BEGIN_NAMESPACE Q_LOGGING_CATEGORY(lcCoapExchange, "qt.coap.exchange") /*! \internal Destructor of the private class. */ QCoapInternalMessagePrivate::~QCoapInternalMessagePrivate() { } /*! \internal \class QCoapInternalMessage \brief The QCoapInternalMessage class contains data related to a received message or a message to send. It contains an instance of QCoapMessage and other data for the block management. \reentrant The QCoapInternalMessage class is inherited by QCoapInternalRequest and QCoapInternalReply that are used internally to manage requests to send and receive replies. \sa QCoapInternalReply, QCoapInternalRequest, QCoapMessage */ /*! \internal Constructs a new QCoapInternalMessage and sets \a parent as the parent object. */ QCoapInternalMessage::QCoapInternalMessage(QObject *parent) : QObject(*new QCoapInternalMessagePrivate, parent) { } /*! \internal Constructs a new QCoapInternalMessage with the given \a message and sets \a parent as the parent object. */ QCoapInternalMessage::QCoapInternalMessage(const QCoapMessage &message, QObject *parent) : QCoapInternalMessage(parent) { Q_D(QCoapInternalMessage); d->message = message; } /*! \internal Constructs a new QCoapInternalMessage with \a dd as the d_ptr. This constructor must be used when subclassing internally the QCoapInternalMessage class. */ QCoapInternalMessage::QCoapInternalMessage(QCoapInternalMessagePrivate &dd, QObject *parent): QObject(dd, parent) { } /*! \internal Set block information from a descriptive block option. See \l {https://tools.ietf.org/html/rfc7959#section-2.3}{RFC 7959}. \note For block-wise transfer, the size of the block is expressed by a power of two. See \l{https://tools.ietf.org/html/rfc7959#section-2.2}{'Structure of a Block Option'} in RFC 7959 for more information. */ void QCoapInternalMessage::setFromDescriptiveBlockOption(const QCoapOption &option) { Q_D(QCoapInternalMessage); const auto value = option.opaqueValue(); const quint8 *optionData = reinterpret_cast(value.data()); const quint8 lastByte = optionData[option.length() - 1]; quint32 blockNumber = 0; for (int i = 0; i < option.length() - 1; ++i) blockNumber = (blockNumber << 8) | optionData[i]; blockNumber = (blockNumber << 4) | (lastByte >> 4); d->currentBlockNumber = blockNumber; d->hasNextBlock = ((lastByte & 0x8) == 0x8); d->blockSize = static_cast(1u << ((lastByte & 0x7) + 4)); if (d->blockSize > 1024) qCWarning(lcCoapExchange, "Received a block size larger than 1024, something may be wrong."); } /*! \internal \overload Adds the CoAP option with the given \a name and \a value. */ void QCoapInternalMessage::addOption(QCoapOption::OptionName name, const QByteArray &value) { QCoapOption option(name, value); addOption(option); } /*! \internal \overload Adds the CoAP option with the given \a name and \a value. */ void QCoapInternalMessage::addOption(QCoapOption::OptionName name, quint32 value) { QCoapOption option(name, value); addOption(option); } /*! \internal Adds the given CoAP \a option. */ void QCoapInternalMessage::addOption(const QCoapOption &option) { Q_D(QCoapInternalMessage); d->message.addOption(option); } /*! \internal Removes the option with the given \a name. */ void QCoapInternalMessage::removeOption(QCoapOption::OptionName name) { Q_D(QCoapInternalMessage); d->message.removeOption(name); } /*! \internal Returns a pointer to the message. */ QCoapMessage *QCoapInternalMessage::message() { Q_D(QCoapInternalMessage); return &(d->message); } /*! \internal Returns a const pointer to the message. */ const QCoapMessage *QCoapInternalMessage::message() const { Q_D(const QCoapInternalMessage); return &(d->message); } /*! \internal Returns the block number */ uint QCoapInternalMessage::currentBlockNumber() const { Q_D(const QCoapInternalMessage); return d->currentBlockNumber; } /*! \internal Returns \c true if it has a next block, \c false otherwise. */ bool QCoapInternalMessage::hasMoreBlocksToReceive() const { Q_D(const QCoapInternalMessage); return d->hasNextBlock; } /*! \internal Returns the size of the block. */ uint QCoapInternalMessage::blockSize() const { Q_D(const QCoapInternalMessage); return d->blockSize; } /*! \internal Returns \c true if the message is considered valid. \sa isUrlValid() */ bool QCoapInternalMessage::isValid() const { return true; } /*! \internal Returns \c true if URL is considered valid. \sa QCoapRequest::isUrlValid() */ bool QCoapInternalMessage::isUrlValid(const QUrl &url) { return QCoapRequestPrivate::isUrlValid(url); } QT_END_NAMESPACE