C++ (Cpp) RawHeaderList::constBegin Examples

Example #1

File: qnetworkaccesscachebackend.cpp Project: venkatarajasekhar/Qt

bool QNetworkAccessCacheBackend::sendCacheContents()
{
    setCachingEnabled(false);
    QAbstractNetworkCache *nc = networkCache();
    if (!nc)
        return false;

    QNetworkCacheMetaData item = nc->metaData(url());
    if (!item.isValid())
        return false;

    QNetworkCacheMetaData::AttributesMap attributes = item.attributes();
    setAttribute(QNetworkRequest::HttpStatusCodeAttribute, attributes.value(QNetworkRequest::HttpStatusCodeAttribute));
    setAttribute(QNetworkRequest::HttpReasonPhraseAttribute, attributes.value(QNetworkRequest::HttpReasonPhraseAttribute));

    // set the raw headers
    QNetworkCacheMetaData::RawHeaderList rawHeaders = item.rawHeaders();
    QNetworkCacheMetaData::RawHeaderList::ConstIterator it = rawHeaders.constBegin(),
                                                       end = rawHeaders.constEnd();
    for ( ; it != end; ++it) {
        if (it->first.toLower() == "cache-control" &&
            it->second.toLower().contains("must-revalidate")) {
            return false;
        }
        setRawHeader(it->first, it->second);
    }

    // handle a possible redirect
    QVariant redirectionTarget = attributes.value(QNetworkRequest::RedirectionTargetAttribute);
    if (redirectionTarget.isValid()) {
        setAttribute(QNetworkRequest::RedirectionTargetAttribute, redirectionTarget);
        redirectionRequested(redirectionTarget.toUrl());
    }

    // signal we're open
    metaDataChanged();

    if (operation() == QNetworkAccessManager::GetOperation) {
        QIODevice *contents = nc->data(url());
        if (!contents)
            return false;
        contents->setParent(this);
        writeDownstreamData(contents);
    }

#if defined(QNETWORKACCESSCACHEBACKEND_DEBUG)
    qDebug() << "Successfully sent cache:" << url();
#endif
    return true;
}

Example #2

/*
    A simple web page that can be used to test us: http://www.procata.com/cachetest/
 */
bool QNetworkAccessHttpBackend::sendCacheContents(const QNetworkCacheMetaData &metaData)
{
    setCachingEnabled(false);
    if (!metaData.isValid())
        return false;

    QAbstractNetworkCache *nc = networkCache();
    Q_ASSERT(nc);
    QIODevice *contents = nc->data(url());
    if (!contents) {
#if defined(QNETWORKACCESSHTTPBACKEND_DEBUG)
        qDebug() << "Can not send cache, the contents are 0" << url();
#endif
        return false;
    }
    contents->setParent(this);

    QNetworkCacheMetaData::AttributesMap attributes = metaData.attributes();
    int status = attributes.value(QNetworkRequest::HttpStatusCodeAttribute).toInt();
    if (status < 100)
        status = 200;           // fake it

    setAttribute(QNetworkRequest::HttpStatusCodeAttribute, status);
    setAttribute(QNetworkRequest::HttpReasonPhraseAttribute, attributes.value(QNetworkRequest::HttpReasonPhraseAttribute));
    setAttribute(QNetworkRequest::SourceIsFromCacheAttribute, true);

    QNetworkCacheMetaData::RawHeaderList rawHeaders = metaData.rawHeaders();
    QNetworkCacheMetaData::RawHeaderList::ConstIterator it = rawHeaders.constBegin(),
                                                       end = rawHeaders.constEnd();
    for ( ; it != end; ++it)
        setRawHeader(it->first, it->second);

    checkForRedirect(status);

    writeDownstreamData(contents);
#if defined(QNETWORKACCESSHTTPBACKEND_DEBUG)
    qDebug() << "Successfully sent cache:" << url() << contents->size() << "bytes";
#endif
    if (httpReply)
        disconnect(httpReply, SIGNAL(finished()), this, SLOT(replyFinished()));
    return true;
}