File: khtml_settings.cpp

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/* This file is part of the KDE project
   Copyright (C) 1999 David Faure <faure@kde.org>

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.

   This library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public License
   along with this library; see the file COPYING.LIB.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
   Boston, MA 02110-1301, USA.
*/

#include "khtml_settings.h"
#include "khtmldefaults.h"

#include <kparts/htmlsettingsinterface.h>
#include <kconfig.h>
#include <kconfiggroup.h>
#include "khtml_debug.h"
#include <klocalizedstring.h>
#include <kmessagebox.h>
#include <khtml_filter_p.h>

#include <kjob.h>
#include <kio/job.h>

#include <QFile>
#include <QFileInfo>
#include <QFontDatabase>
#include <QByteArray>
#include <QUrl>
#include <qstandardpaths.h>
#include <ksharedconfig.h>

/**
 * @internal
 * Contains all settings which are both available globally and per-domain
 */
struct KPerDomainSettings {
    bool m_bEnableJava : 1;
    bool m_bEnableJavaScript : 1;
    bool m_bEnablePlugins : 1;
    // don't forget to maintain the bitfields as the enums grow
    KHTMLSettings::KJSWindowOpenPolicy m_windowOpenPolicy : 2;
    KHTMLSettings::KJSWindowStatusPolicy m_windowStatusPolicy : 1;
    KHTMLSettings::KJSWindowFocusPolicy m_windowFocusPolicy : 1;
    KHTMLSettings::KJSWindowMovePolicy m_windowMovePolicy : 1;
    KHTMLSettings::KJSWindowResizePolicy m_windowResizePolicy : 1;

#ifdef DEBUG_SETTINGS
    void dump(const QString &infix = QString()) const
    {
        // qCDebug(KHTML_LOG) << "KPerDomainSettings " << infix << " @" << this << ":";
        // qCDebug(KHTML_LOG) << "  m_bEnableJava: " << m_bEnableJava;
        // qCDebug(KHTML_LOG) << "  m_bEnableJavaScript: " << m_bEnableJavaScript;
        // qCDebug(KHTML_LOG) << "  m_bEnablePlugins: " << m_bEnablePlugins;
        // qCDebug(KHTML_LOG) << "  m_windowOpenPolicy: " << m_windowOpenPolicy;
        // qCDebug(KHTML_LOG) << "  m_windowStatusPolicy: " << m_windowStatusPolicy;
        // qCDebug(KHTML_LOG) << "  m_windowFocusPolicy: " << m_windowFocusPolicy;
        // qCDebug(KHTML_LOG) << "  m_windowMovePolicy: " << m_windowMovePolicy;
        // qCDebug(KHTML_LOG) << "  m_windowResizePolicy: " << m_windowResizePolicy;
    }
#endif
};

QString *KHTMLSettings::avFamilies = nullptr;
typedef QMap<QString, KPerDomainSettings> PolicyMap;

// The "struct" that contains all the data. Must be copiable (no pointers).
class KHTMLSettingsData
{
public:
    bool m_bChangeCursor : 1;
    bool m_bOpenMiddleClick : 1;
    bool m_underlineLink : 1;
    bool m_hoverLink : 1;
    bool m_bEnableJavaScriptDebug : 1;
    bool m_bEnableJavaScriptErrorReporting : 1;
    bool enforceCharset : 1;
    bool m_bAutoLoadImages : 1;
    bool m_bUnfinishedImageFrame : 1;
    bool m_formCompletionEnabled : 1;
    bool m_autoDelayedActionsEnabled : 1;
    bool m_jsErrorsEnabled : 1;
    bool m_follow_system_colors : 1;
    bool m_allowTabulation : 1;
    bool m_autoSpellCheck : 1;
    bool m_adFilterEnabled : 1;
    bool m_hideAdsEnabled : 1;
    bool m_jsPopupBlockerPassivePopup : 1;
    bool m_accessKeysEnabled : 1;

    // the virtual global "domain"
    KPerDomainSettings global;

    int m_fontSize;
    int m_minFontSize;
    int m_maxFormCompletionItems;
    KHTMLSettings::KAnimationAdvice m_showAnimations;
    KHTMLSettings::KSmoothScrollingMode m_smoothScrolling;
    KHTMLSettings::KDNSPrefetch m_dnsPrefetch;

    QString m_encoding;
    QString m_userSheet;

    QColor m_textColor;
    QColor m_baseColor;
    QColor m_linkColor;
    QColor m_vLinkColor;

    PolicyMap domainPolicy;
    QStringList fonts;
    QStringList defaultFonts;

    khtml::FilterSet adBlackList;
    khtml::FilterSet adWhiteList;
    QList< QPair< QString, QChar > > m_fallbackAccessKeysAssignments;
};

class KHTMLSettingsPrivate : public QObject, public KHTMLSettingsData
{
    Q_OBJECT
public:

    void adblockFilterLoadList(const QString &filename)
    {
        // qCDebug(KHTML_LOG) << "Loading filter list from" << filename;
        /** load list file and process each line */
        QFile file(filename);
        if (file.open(QIODevice::ReadOnly)) {
            QTextStream ts(&file);
            QString line = ts.readLine();
#ifndef NDEBUG /// only count when compiled for debugging
            int whiteCounter = 0, blackCounter = 0;
#endif // NDEBUG
            while (!line.isEmpty()) {
                /** white list lines start with "@@" */
                if (line.startsWith(QLatin1String("@@"))) {
#ifndef NDEBUG
                    ++whiteCounter;
#endif // NDEBUG
                    adWhiteList.addFilter(line);
                } else {
#ifndef NDEBUG
                    ++blackCounter;
#endif // NDEBUG
                    adBlackList.addFilter(line);
                }

                line = ts.readLine();
            }
            file.close();

#ifndef NDEBUG
            // qCDebug(KHTML_LOG) << "Filter list loaded" << whiteCounter << "white list entries and" << blackCounter << "black list entries";
#endif // NDEBUG
        }
    }

public Q_SLOTS:
    void adblockFilterResult(KJob *job)
    {
        KIO::StoredTransferJob *tJob = qobject_cast<KIO::StoredTransferJob *>(job);
        Q_ASSERT(tJob);

        if (tJob->error()) {
            // qCDebug(KHTML_LOG) << "Failed to download" << tJob->url() << "with message:" << tJob->errorText();
        } else if (tJob->isErrorPage()) { // 4XX error code
            // qCDebug(KHTML_LOG) << "Failed to fetch filter list" << tJob->url();
        } else {
            const QByteArray byteArray = tJob->data();
            const QString localFileName = tJob->property("khtmlsettings_adBlock_filename").toString();

            QFile file(localFileName);
            if (file.open(QFile::WriteOnly)) {
                bool success = file.write(byteArray) == byteArray.size();
                file.close();
                if (success) {
                    adblockFilterLoadList(localFileName);
                } else {
                    // qCDebug(KHTML_LOG) << "Could not write" << byteArray.size() << "to file" << localFileName;
                }
            } else {
                // qCDebug(KHTML_LOG) << "Cannot open file" << localFileName << "for filter list";
            }
        }

    }
};

/** Returns a writeable per-domains settings instance for the given domain
  * or a deep copy of the global settings if not existent.
  */
static KPerDomainSettings &setup_per_domain_policy(
    KHTMLSettingsPrivate *const d,
    const QString &domain)
{
    if (domain.isEmpty()) {
        qCWarning(KHTML_LOG) << "setup_per_domain_policy: domain is empty";
    }
    const QString ldomain = domain.toLower();
    PolicyMap::iterator it = d->domainPolicy.find(ldomain);
    if (it == d->domainPolicy.end()) {
        // simply copy global domain settings (they should have been initialized
        // by this time)
        it = d->domainPolicy.insert(ldomain, d->global);
    }
    return *it;
}

KHTMLSettings::KJavaScriptAdvice KHTMLSettings::strToAdvice(const QString &_str)
{
    return static_cast<KJavaScriptAdvice>(KParts::HtmlSettingsInterface::textToJavascriptAdvice(_str));
}

const char *KHTMLSettings::adviceToStr(KJavaScriptAdvice _advice)
{
    return KParts::HtmlSettingsInterface::javascriptAdviceToText(static_cast<KParts::HtmlSettingsInterface::JavaScriptAdvice>(_advice));
}

void KHTMLSettings::splitDomainAdvice(const QString &configStr, QString &domain,
                                      KJavaScriptAdvice &javaAdvice, KJavaScriptAdvice &javaScriptAdvice)
{
    KParts::HtmlSettingsInterface::JavaScriptAdvice jAdvice, jsAdvice;
    KParts::HtmlSettingsInterface::splitDomainAdvice(configStr, domain, jAdvice, jsAdvice);
    javaAdvice = static_cast<KJavaScriptAdvice>(jAdvice);
    javaScriptAdvice = static_cast<KJavaScriptAdvice>(jsAdvice);
}

void KHTMLSettings::readDomainSettings(const KConfigGroup &config, bool reset,
                                       bool global, KPerDomainSettings &pd_settings)
{
    QString jsPrefix = global ? QString()
                       : QString::fromLatin1("javascript.");
    QString javaPrefix = global ? QString()
                         : QString::fromLatin1("java.");
    QString pluginsPrefix = global ? QString()
                            : QString::fromLatin1("plugins.");

    // The setting for Java
    QString key = javaPrefix + QLatin1String("EnableJava");
    if ((global && reset) || config.hasKey(key)) {
        pd_settings.m_bEnableJava = config.readEntry(key, false);
    } else if (!global) {
        pd_settings.m_bEnableJava = d->global.m_bEnableJava;
    }

    // The setting for Plugins
    key = pluginsPrefix + QLatin1String("EnablePlugins");
    if ((global && reset) || config.hasKey(key)) {
        pd_settings.m_bEnablePlugins = config.readEntry(key, true);
    } else if (!global) {
        pd_settings.m_bEnablePlugins = d->global.m_bEnablePlugins;
    }

    // The setting for JavaScript
    key = jsPrefix + QLatin1String("EnableJavaScript");
    if ((global && reset) || config.hasKey(key)) {
        pd_settings.m_bEnableJavaScript = config.readEntry(key, true);
    } else if (!global) {
        pd_settings.m_bEnableJavaScript = d->global.m_bEnableJavaScript;
    }

    // window property policies
    key = jsPrefix + QLatin1String("WindowOpenPolicy");
    if ((global && reset) || config.hasKey(key))
        pd_settings.m_windowOpenPolicy = (KJSWindowOpenPolicy)
                                         config.readEntry(key, uint(KJSWindowOpenSmart));
    else if (!global) {
        pd_settings.m_windowOpenPolicy = d->global.m_windowOpenPolicy;
    }

    key = jsPrefix + QLatin1String("WindowMovePolicy");
    if ((global && reset) || config.hasKey(key))
        pd_settings.m_windowMovePolicy = (KJSWindowMovePolicy)
                                         config.readEntry(key, uint(KJSWindowMoveAllow));
    else if (!global) {
        pd_settings.m_windowMovePolicy = d->global.m_windowMovePolicy;
    }

    key = jsPrefix + QLatin1String("WindowResizePolicy");
    if ((global && reset) || config.hasKey(key))
        pd_settings.m_windowResizePolicy = (KJSWindowResizePolicy)
                                           config.readEntry(key, uint(KJSWindowResizeAllow));
    else if (!global) {
        pd_settings.m_windowResizePolicy = d->global.m_windowResizePolicy;
    }

    key = jsPrefix + QLatin1String("WindowStatusPolicy");
    if ((global && reset) || config.hasKey(key))
        pd_settings.m_windowStatusPolicy = (KJSWindowStatusPolicy)
                                           config.readEntry(key, uint(KJSWindowStatusAllow));
    else if (!global) {
        pd_settings.m_windowStatusPolicy = d->global.m_windowStatusPolicy;
    }

    key = jsPrefix + QLatin1String("WindowFocusPolicy");
    if ((global && reset) || config.hasKey(key))
        pd_settings.m_windowFocusPolicy = (KJSWindowFocusPolicy)
                                          config.readEntry(key, uint(KJSWindowFocusAllow));
    else if (!global) {
        pd_settings.m_windowFocusPolicy = d->global.m_windowFocusPolicy;
    }

}

KHTMLSettings::KHTMLSettings()
    : d(new KHTMLSettingsPrivate())
{
    init();
}

KHTMLSettings::KHTMLSettings(const KHTMLSettings &other)
    : d(new KHTMLSettingsPrivate())
{
    KHTMLSettingsData *data = d;
    *data = *other.d;
}

KHTMLSettings::~KHTMLSettings()
{
    delete d;
}

bool KHTMLSettings::changeCursor() const
{
    return d->m_bChangeCursor;
}

bool KHTMLSettings::underlineLink() const
{
    return d->m_underlineLink;
}

bool KHTMLSettings::hoverLink() const
{
    return d->m_hoverLink;
}

void KHTMLSettings::init()
{
    KConfig global("khtmlrc", KConfig::NoGlobals);
    init(&global, true);

    KSharedConfig::Ptr local = KSharedConfig::openConfig();
    if (!local) {
        return;
    }

    init(local.data(), false);
}

void KHTMLSettings::init(KConfig *config, bool reset)
{
    KConfigGroup cg(config, "MainView Settings");
    if (reset || cg.exists()) {
        if (reset || cg.hasKey("OpenMiddleClick")) {
            d->m_bOpenMiddleClick = cg.readEntry("OpenMiddleClick", true);
        }
    }

    KConfigGroup cgAccess(config, "Access Keys");
    if (reset || cgAccess.exists()) {
        d->m_accessKeysEnabled = cgAccess.readEntry("Enabled", true);
    }

    KConfigGroup cgFilter(config, "Filter Settings");

    if (reset || cgFilter.exists()) {
        d->m_adFilterEnabled = cgFilter.readEntry("Enabled", false);
        d->m_hideAdsEnabled = cgFilter.readEntry("Shrink", false);

        d->adBlackList.clear();
        d->adWhiteList.clear();

        if (d->m_adFilterEnabled) {

            /** read maximum age for filter list files, minimum is one day */
            int htmlFilterListMaxAgeDays = cgFilter.readEntry(QString("HTMLFilterListMaxAgeDays")).toInt();
            if (htmlFilterListMaxAgeDays < 1) {
                htmlFilterListMaxAgeDays = 1;
            }

            QMap<QString, QString> entryMap = cgFilter.entryMap();
            QMap<QString, QString>::ConstIterator it;
            for (it = entryMap.constBegin(); it != entryMap.constEnd(); ++it) {
                int id = -1;
                QString name = it.key();
                QString url = it.value();

                if (name.startsWith("Filter")) {
                    if (url.startsWith(QLatin1String("@@"))) {
                        d->adWhiteList.addFilter(url);
                    } else {
                        d->adBlackList.addFilter(url);
                    }
                } else if (name.startsWith("HTMLFilterListName-") && (id = name.mid(19).toInt()) > 0) {
                    /** check if entry is enabled */
                    bool filterEnabled = cgFilter.readEntry(QString("HTMLFilterListEnabled-").append(QString::number(id))) != QLatin1String("false");

                    /** get url for HTMLFilterList */
                    QUrl url(cgFilter.readEntry(QString("HTMLFilterListURL-").append(QString::number(id))));

                    if (filterEnabled && url.isValid()) {
                        /** determine where to cache HTMLFilterList file */
                        QString localFile = cgFilter.readEntry(QString("HTMLFilterListLocalFilename-").append(QString::number(id)));
                        localFile = QStandardPaths::writableLocation(QStandardPaths::GenericDataLocation) + QLatin1Char('/') + "khtml/" + localFile;

                        /** determine existence and age of cache file */
                        QFileInfo fileInfo(localFile);

                        /** load cached file if it exists, irrespective of age */
                        if (fileInfo.exists()) {
                            d->adblockFilterLoadList(localFile);
                        }

                        /** if no cache list file exists or if it is too old ... */
                        if (!fileInfo.exists() || fileInfo.lastModified().daysTo(QDateTime::currentDateTime()) > htmlFilterListMaxAgeDays) {
                            /** ... in this case, refetch list asynchronously */
                            // qCDebug(KHTML_LOG) << "Asynchronously fetching filter list from" << url << "to" << localFile;

                            KIO::StoredTransferJob *job = KIO::storedGet(url, KIO::Reload, KIO::HideProgressInfo);
                            QObject::connect(job, SIGNAL(result(KJob*)), d, SLOT(adblockFilterResult(KJob*)));
                            /** for later reference, store name of cache file */
                            job->setProperty("khtmlsettings_adBlock_filename", localFile);
                        }
                    }
                }
            }
        }

    }

    KConfigGroup cgHtml(config, "HTML Settings");
    if (reset || cgHtml.exists()) {
        // Fonts and colors
        if (reset) {
            d->defaultFonts = QStringList();
            d->defaultFonts.append(cgHtml.readEntry("StandardFont", QFontDatabase::systemFont(QFontDatabase::GeneralFont).family()));
            d->defaultFonts.append(cgHtml.readEntry("FixedFont", QFontDatabase::systemFont(QFontDatabase::FixedFont).family()));
            // Resolve generic font family names
            const QString serifFont = QFontInfo(QFont(QLatin1String(HTML_DEFAULT_VIEW_SERIF_FONT))).family();
            const QString sansSerifFont = QFontInfo(QFont(QLatin1String(HTML_DEFAULT_VIEW_SANSSERIF_FONT))).family();
            const QString cursiveFont = QFontInfo(QFont(QLatin1String(HTML_DEFAULT_VIEW_CURSIVE_FONT))).family();
            const QString fantasyFont = QFontInfo(QFont(QLatin1String(HTML_DEFAULT_VIEW_FANTASY_FONT))).family();
            d->defaultFonts.append(cgHtml.readEntry("SerifFont", serifFont));
            d->defaultFonts.append(cgHtml.readEntry("SansSerifFont", sansSerifFont));
            d->defaultFonts.append(cgHtml.readEntry("CursiveFont", cursiveFont));
            d->defaultFonts.append(cgHtml.readEntry("FantasyFont", fantasyFont));
            d->defaultFonts.append(QString("0"));     // font size adjustment
        }

        if (reset || cgHtml.hasKey("MinimumFontSize")) {
            d->m_minFontSize = cgHtml.readEntry("MinimumFontSize", HTML_DEFAULT_MIN_FONT_SIZE);
        }

        if (reset || cgHtml.hasKey("MediumFontSize")) {
            d->m_fontSize = cgHtml.readEntry("MediumFontSize", 12);
        }

        d->fonts = cgHtml.readEntry("Fonts", QStringList());
        const int fontsListLength = d->fonts.length();
        // Resolve generic font family names
        for (int i = 0; i < fontsListLength; ++i) {
            const QString fontFamily = d->fonts.at(i);
            if (!fontFamily.isEmpty()) {
                d->fonts[i] = QFontInfo(QFont(fontFamily)).family();
                //qCWarning(KHTML_LOG) << "Font family name:" << fontFamily << "resolved to:" << d->fonts.at(i);
            }
        }

        if (reset || cgHtml.hasKey("DefaultEncoding")) {
            d->m_encoding = cgHtml.readEntry("DefaultEncoding", "");
        }

        if (reset || cgHtml.hasKey("EnforceDefaultCharset")) {
            d->enforceCharset = cgHtml.readEntry("EnforceDefaultCharset", false);
        }

        // Behavior
        if (reset || cgHtml.hasKey("ChangeCursor")) {
            d->m_bChangeCursor = cgHtml.readEntry("ChangeCursor", true);
        }

        if (reset || cgHtml.hasKey("UnderlineLinks")) {
            d->m_underlineLink = cgHtml.readEntry("UnderlineLinks", true);
        }

        if (reset || cgHtml.hasKey("HoverLinks")) {
            if ((d->m_hoverLink = cgHtml.readEntry("HoverLinks", false))) {
                d->m_underlineLink = false;
            }
        }

        if (reset || cgHtml.hasKey("AllowTabulation")) {
            d->m_allowTabulation = cgHtml.readEntry("AllowTabulation", false);
        }

        if (reset || cgHtml.hasKey("AutoSpellCheck")) {
            d->m_autoSpellCheck = cgHtml.readEntry("AutoSpellCheck", true);
        }

        // Other
        if (reset || cgHtml.hasKey("AutoLoadImages")) {
            d->m_bAutoLoadImages = cgHtml.readEntry("AutoLoadImages", true);
        }

        if (reset || cgHtml.hasKey("UnfinishedImageFrame")) {
            d->m_bUnfinishedImageFrame = cgHtml.readEntry("UnfinishedImageFrame", true);
        }

        if (reset || cgHtml.hasKey("ShowAnimations")) {
            QString value = cgHtml.readEntry("ShowAnimations").toLower();
            if (value == "disabled") {
                d->m_showAnimations = KAnimationDisabled;
            } else if (value == "looponce") {
                d->m_showAnimations = KAnimationLoopOnce;
            } else {
                d->m_showAnimations = KAnimationEnabled;
            }
        }

        if (reset || cgHtml.hasKey("SmoothScrolling")) {
            QString value = cgHtml.readEntry("SmoothScrolling", "whenefficient").toLower();
            if (value == "disabled") {
                d->m_smoothScrolling = KSmoothScrollingDisabled;
            } else if (value == "whenefficient") {
                d->m_smoothScrolling = KSmoothScrollingWhenEfficient;
            } else {
                d->m_smoothScrolling = KSmoothScrollingEnabled;
            }
        }

        if (reset || cgHtml.hasKey("DNSPrefetch")) {
            // Enabled, Disabled, OnlyWWWAndSLD
            QString value = cgHtml.readEntry("DNSPrefetch", "Enabled").toLower();
            if (value == "enabled") {
                d->m_dnsPrefetch = KDNSPrefetchEnabled;
            } else if (value == "onlywwwandsld") {
                d->m_dnsPrefetch = KDNSPrefetchOnlyWWWAndSLD;
            } else {
                d->m_dnsPrefetch = KDNSPrefetchDisabled;
            }
        }

        if (cgHtml.readEntry("UserStyleSheetEnabled", false) == true) {
            if (reset || cgHtml.hasKey("UserStyleSheet")) {
                d->m_userSheet = cgHtml.readEntry("UserStyleSheet", "");
            }
        }

        d->m_formCompletionEnabled = cgHtml.readEntry("FormCompletion", true);
        d->m_maxFormCompletionItems = cgHtml.readEntry("MaxFormCompletionItems", 10);
        d->m_autoDelayedActionsEnabled = cgHtml.readEntry("AutoDelayedActions", true);
        d->m_jsErrorsEnabled = cgHtml.readEntry("ReportJSErrors", true);
        const QStringList accesskeys = cgHtml.readEntry("FallbackAccessKeysAssignments", QStringList());
        d->m_fallbackAccessKeysAssignments.clear();
        for (QStringList::ConstIterator it = accesskeys.begin(); it != accesskeys.end(); ++it)
            if ((*it).length() > 2 && (*it)[ 1 ] == ':') {
                d->m_fallbackAccessKeysAssignments.append(qMakePair((*it).mid(2), (*it)[ 0 ]));
            }
    }

    // Colors
    //In which group ?????
    if (reset || cg.hasKey("FollowSystemColors")) {
        d->m_follow_system_colors = cg.readEntry("FollowSystemColors", false);
    }

    KConfigGroup cgGeneral(config, "General");
    if (reset || cgGeneral.exists()) {
        if (reset || cgGeneral.hasKey("foreground")) {
            QColor def(HTML_DEFAULT_TXT_COLOR);
            d->m_textColor = cgGeneral.readEntry("foreground", def);
        }

        if (reset || cgGeneral.hasKey("linkColor")) {
            QColor def(HTML_DEFAULT_LNK_COLOR);
            d->m_linkColor = cgGeneral.readEntry("linkColor", def);
        }

        if (reset || cgGeneral.hasKey("visitedLinkColor")) {
            QColor def(HTML_DEFAULT_VLNK_COLOR);
            d->m_vLinkColor = cgGeneral.readEntry("visitedLinkColor", def);
        }

        if (reset || cgGeneral.hasKey("background")) {
            QColor def(HTML_DEFAULT_BASE_COLOR);
            d->m_baseColor = cgGeneral.readEntry("background", def);
        }
    }

    KConfigGroup cgJava(config, "Java/JavaScript Settings");
    if (reset || cgJava.exists()) {
        // The global setting for JavaScript debugging
        // This is currently always enabled by default
        if (reset || cgJava.hasKey("EnableJavaScriptDebug")) {
            d->m_bEnableJavaScriptDebug = cgJava.readEntry("EnableJavaScriptDebug", false);
        }

        // The global setting for JavaScript error reporting
        if (reset || cgJava.hasKey("ReportJavaScriptErrors")) {
            d->m_bEnableJavaScriptErrorReporting = cgJava.readEntry("ReportJavaScriptErrors", false);
        }

        // The global setting for popup block passive popup
        if (reset || cgJava.hasKey("PopupBlockerPassivePopup")) {
            d->m_jsPopupBlockerPassivePopup = cgJava.readEntry("PopupBlockerPassivePopup", true);
        }

        // Read options from the global "domain"
        readDomainSettings(cgJava, reset, true, d->global);
#ifdef DEBUG_SETTINGS
        d->global.dump("init global");
#endif

        // The domain-specific settings.

        static const char *const domain_keys[] = {  // always keep order of keys
            "ECMADomains", "JavaDomains", "PluginDomains"
        };
        bool check_old_ecma_settings = true;
        bool check_old_java_settings = true;
        // merge all domains into one list
        QMap<QString, int> domainList;  // why can't Qt have a QSet?
        for (unsigned i = 0; i < sizeof domain_keys / sizeof domain_keys[0]; ++i) {
            if (reset || cgJava.hasKey(domain_keys[i])) {
                if (i == 0) {
                    check_old_ecma_settings = false;
                } else if (i == 1) {
                    check_old_java_settings = false;
                }
                const QStringList dl = cgJava.readEntry(domain_keys[i], QStringList());
                const QMap<QString, int>::Iterator notfound = domainList.end();
                QStringList::ConstIterator it = dl.begin();
                const QStringList::ConstIterator itEnd = dl.end();
                for (; it != itEnd; ++it) {
                    const QString domain = (*it).toLower();
                    QMap<QString, int>::Iterator pos = domainList.find(domain);
                    if (pos == notfound) {
                        domainList.insert(domain, 0);
                    }
                }/*next it*/
            }
        }/*next i*/

        if (reset) {
            d->domainPolicy.clear();
        }

        {
            QMap<QString, int>::ConstIterator it = domainList.constBegin();
            const QMap<QString, int>::ConstIterator itEnd = domainList.constEnd();
            for (; it != itEnd; ++it) {
                const QString domain = it.key();
                KConfigGroup cg(config, domain);
                readDomainSettings(cg, reset, false, d->domainPolicy[domain]);
#ifdef DEBUG_SETTINGS
                d->domainPolicy[domain].dump("init " + domain);
#endif
            }
        }

        bool check_old_java = true;
        if ((reset || cgJava.hasKey("JavaDomainSettings"))
                && check_old_java_settings) {
            check_old_java = false;
            const QStringList domainList = cgJava.readEntry("JavaDomainSettings", QStringList());
            QStringList::ConstIterator it = domainList.constBegin();
            const QStringList::ConstIterator itEnd = domainList.constEnd();
            for (; it != itEnd; ++it) {
                QString domain;
                KJavaScriptAdvice javaAdvice;
                KJavaScriptAdvice javaScriptAdvice;
                splitDomainAdvice(*it, domain, javaAdvice, javaScriptAdvice);
                setup_per_domain_policy(d, domain).m_bEnableJava =
                    javaAdvice == KJavaScriptAccept;
#ifdef DEBUG_SETTINGS
                setup_per_domain_policy(d, domain).dump("JavaDomainSettings 4 " + domain);
#endif
            }
        }

        bool check_old_ecma = true;
        if ((reset || cgJava.hasKey("ECMADomainSettings"))
                && check_old_ecma_settings) {
            check_old_ecma = false;
            const QStringList domainList = cgJava.readEntry("ECMADomainSettings", QStringList());
            QStringList::ConstIterator it = domainList.constBegin();
            const QStringList::ConstIterator itEnd = domainList.constEnd();
            for (; it != itEnd; ++it) {
                QString domain;
                KJavaScriptAdvice javaAdvice;
                KJavaScriptAdvice javaScriptAdvice;
                splitDomainAdvice(*it, domain, javaAdvice, javaScriptAdvice);
                setup_per_domain_policy(d, domain).m_bEnableJavaScript =
                    javaScriptAdvice == KJavaScriptAccept;
#ifdef DEBUG_SETTINGS
                setup_per_domain_policy(d, domain).dump("ECMADomainSettings 4 " + domain);
#endif
            }
        }

        if ((reset || cgJava.hasKey("JavaScriptDomainAdvice"))
                && (check_old_java || check_old_ecma)
                && (check_old_ecma_settings || check_old_java_settings)) {
            const QStringList domainList = cgJava.readEntry("JavaScriptDomainAdvice", QStringList());
            QStringList::ConstIterator it = domainList.constBegin();
            const QStringList::ConstIterator itEnd = domainList.constEnd();
            for (; it != itEnd; ++it) {
                QString domain;
                KJavaScriptAdvice javaAdvice;
                KJavaScriptAdvice javaScriptAdvice;
                splitDomainAdvice(*it, domain, javaAdvice, javaScriptAdvice);
                if (check_old_java)
                    setup_per_domain_policy(d, domain).m_bEnableJava =
                        javaAdvice == KJavaScriptAccept;
                if (check_old_ecma)
                    setup_per_domain_policy(d, domain).m_bEnableJavaScript =
                        javaScriptAdvice == KJavaScriptAccept;
#ifdef DEBUG_SETTINGS
                setup_per_domain_policy(d, domain).dump("JavaScriptDomainAdvice 4 " + domain);
#endif
            }

            //save all the settings into the new keywords if they don't exist
#if 0
            if (check_old_java) {
                QStringList domainConfig;
                PolicyMap::Iterator it;
                for (it = d->javaDomainPolicy.begin(); it != d->javaDomainPolicy.end(); ++it) {
                    QByteArray javaPolicy = adviceToStr(it.value());
                    QByteArray javaScriptPolicy = adviceToStr(KJavaScriptDunno);
                    domainConfig.append(QString::fromLatin1("%1:%2:%3").arg(it.key()).arg(javaPolicy).arg(javaScriptPolicy));
                }
                cg.writeEntry("JavaDomainSettings", domainConfig);
            }

            if (check_old_ecma) {
                QStringList domainConfig;
                PolicyMap::Iterator it;
                for (it = d->javaScriptDomainPolicy.begin(); it != d->javaScriptDomainPolicy.end(); ++it) {
                    QByteArray javaPolicy = adviceToStr(KJavaScriptDunno);
                    QByteArray javaScriptPolicy = adviceToStr(it.value());
                    domainConfig.append(QString::fromLatin1("%1:%2:%3").arg(it.key()).arg(javaPolicy).arg(javaScriptPolicy));
                }
                cg.writeEntry("ECMADomainSettings", domainConfig);
            }
#endif
        }
    }
}

/** Local helper for retrieving per-domain settings.
  *
  * In case of doubt, the global domain is returned.
  */
static const KPerDomainSettings &lookup_hostname_policy(
    const KHTMLSettingsPrivate *const d,
    const QString &hostname)
{
#ifdef DEBUG_SETTINGS
    // qCDebug(KHTML_LOG) << "lookup_hostname_policy(" << hostname << ")";
#endif
    if (hostname.isEmpty()) {
#ifdef DEBUG_SETTINGS
        d->global.dump("global");
#endif
        return d->global;
    }

    const PolicyMap::const_iterator notfound = d->domainPolicy.constEnd();

    // First check whether there is a perfect match.
    PolicyMap::const_iterator it = d->domainPolicy.find(hostname);
    if (it != notfound) {
#ifdef DEBUG_SETTINGS
        // qCDebug(KHTML_LOG) << "perfect match";
        (*it).dump(hostname);
#endif
        // yes, use it (unless dunno)
        return *it;
    }

    // Now, check for partial match.  Chop host from the left until
    // there's no dots left.
    QString host_part = hostname;
    int dot_idx = -1;
    while ((dot_idx = host_part.indexOf(QChar('.'))) >= 0) {
        host_part.remove(0, dot_idx);
        it = d->domainPolicy.find(host_part);
        Q_ASSERT(notfound == d->domainPolicy.end());
        if (it != notfound) {
#ifdef DEBUG_SETTINGS
            // qCDebug(KHTML_LOG) << "partial match";
            (*it).dump(host_part);
#endif
            return *it;
        }
        // assert(host_part[0] == QChar('.'));
        host_part.remove(0, 1); // Chop off the dot.
    }

    // No domain-specific entry: use global domain
#ifdef DEBUG_SETTINGS
    // qCDebug(KHTML_LOG) << "no match";
    d->global.dump("global");
#endif
    return d->global;
}

bool KHTMLSettings::isOpenMiddleClickEnabled()
{
    return d->m_bOpenMiddleClick;
}

bool KHTMLSettings::isBackRightClickEnabled()
{
    return false; // ## the feature moved to konqueror
}

bool KHTMLSettings::accessKeysEnabled() const
{
    return d->m_accessKeysEnabled;
}

bool KHTMLSettings::isAdFilterEnabled() const
{
    return d->m_adFilterEnabled;
}

bool KHTMLSettings::isHideAdsEnabled() const
{
    return d->m_hideAdsEnabled;
}

bool KHTMLSettings::isAdFiltered(const QString &url) const
{
    if (d->m_adFilterEnabled) {
        if (!url.startsWith("data:")) {
            // Check the blacklist, and only if that matches, the whitelist
            return d->adBlackList.isUrlMatched(url) && !d->adWhiteList.isUrlMatched(url);
        }
    }
    return false;
}

QString KHTMLSettings::adFilteredBy(const QString &url, bool *isWhiteListed) const
{
    QString m = d->adWhiteList.urlMatchedBy(url);
    if (!m.isEmpty()) {
        if (isWhiteListed != nullptr) {
            *isWhiteListed = true;
        }
        return (m);
    }

    m = d->adBlackList.urlMatchedBy(url);
    if (!m.isEmpty()) {
        if (isWhiteListed != nullptr) {
            *isWhiteListed = false;
        }
        return (m);
    }

    return (QString());
}

void KHTMLSettings::addAdFilter(const QString &url)
{
    KConfigGroup config = KSharedConfig::openConfig("khtmlrc", KConfig::NoGlobals)->group("Filter Settings");

    QRegExp rx;

    // Try compiling to avoid invalid stuff. Only support the basic syntax here...
    // ### refactor somewhat
    if (url.length() > 2 && url[0] == '/' && url[url.length() - 1] == '/') {
        QString inside = url.mid(1, url.length() - 2);
        rx.setPattern(inside);
    } else {
        rx.setPatternSyntax(QRegExp::Wildcard);
        rx.setPattern(url);
    }

    if (rx.isValid()) {
        int last = config.readEntry("Count", 0);
        QString key = "Filter-" + QString::number(last);
        config.writeEntry(key, url);
        config.writeEntry("Count", last + 1);
        config.sync();
        if (url.startsWith(QLatin1String("@@"))) {
            d->adWhiteList.addFilter(url);
        } else {
            d->adBlackList.addFilter(url);
        }
    } else {
        KMessageBox::error(nullptr,
                           rx.errorString(),
                           i18n("Filter error"));
    }
}

bool KHTMLSettings::isJavaEnabled(const QString &hostname) const
{
    return lookup_hostname_policy(d, hostname.toLower()).m_bEnableJava;
}

bool KHTMLSettings::isJavaScriptEnabled(const QString &hostname) const
{
    return lookup_hostname_policy(d, hostname.toLower()).m_bEnableJavaScript;
}

bool KHTMLSettings::isJavaScriptDebugEnabled(const QString & /*hostname*/) const
{
    // debug setting is global for now, but could change in the future
    return d->m_bEnableJavaScriptDebug;
}

bool KHTMLSettings::isJavaScriptErrorReportingEnabled(const QString & /*hostname*/) const
{
    // error reporting setting is global for now, but could change in the future
    return d->m_bEnableJavaScriptErrorReporting;
}

bool KHTMLSettings::isPluginsEnabled(const QString &hostname) const
{
    return lookup_hostname_policy(d, hostname.toLower()).m_bEnablePlugins;
}

KHTMLSettings::KJSWindowOpenPolicy KHTMLSettings::windowOpenPolicy(
    const QString &hostname) const
{
    return lookup_hostname_policy(d, hostname.toLower()).m_windowOpenPolicy;
}

KHTMLSettings::KJSWindowMovePolicy KHTMLSettings::windowMovePolicy(
    const QString &hostname) const
{
    return lookup_hostname_policy(d, hostname.toLower()).m_windowMovePolicy;
}

KHTMLSettings::KJSWindowResizePolicy KHTMLSettings::windowResizePolicy(
    const QString &hostname) const
{
    return lookup_hostname_policy(d, hostname.toLower()).m_windowResizePolicy;
}

KHTMLSettings::KJSWindowStatusPolicy KHTMLSettings::windowStatusPolicy(
    const QString &hostname) const
{
    return lookup_hostname_policy(d, hostname.toLower()).m_windowStatusPolicy;
}

KHTMLSettings::KJSWindowFocusPolicy KHTMLSettings::windowFocusPolicy(
    const QString &hostname) const
{
    return lookup_hostname_policy(d, hostname.toLower()).m_windowFocusPolicy;
}

int KHTMLSettings::mediumFontSize() const
{
    return d->m_fontSize;
}

int KHTMLSettings::minFontSize() const
{
    return d->m_minFontSize;
}

QString KHTMLSettings::settingsToCSS() const
{
    // lets start with the link properties
    QString str = "a:link {\ncolor: ";
    str += d->m_linkColor.name();
    str += ';';
    if (d->m_underlineLink) {
        str += "\ntext-decoration: underline;";
    }

    if (d->m_bChangeCursor) {
        str += "\ncursor: pointer;";
        str += "\n}\ninput[type=image] { cursor: pointer;";
    }
    str += "\n}\n";
    str += "a:visited {\ncolor: ";
    str += d->m_vLinkColor.name();
    str += ';';
    if (d->m_underlineLink) {
        str += "\ntext-decoration: underline;";
    }

    if (d->m_bChangeCursor) {
        str += "\ncursor: pointer;";
    }
    str += "\n}\n";

    if (d->m_hoverLink) {
        str += "a:link:hover, a:visited:hover { text-decoration: underline; }\n";
    }

    return str;
}

const QString &KHTMLSettings::availableFamilies()
{
    if (!avFamilies) {
        avFamilies = new QString;
        QFontDatabase db;
        QStringList families = db.families();
        QStringList s;
        QRegExp foundryExp(" \\[.+\\]");

        //remove foundry info
        QStringList::Iterator f = families.begin();
        const QStringList::Iterator fEnd = families.end();

        for (; f != fEnd; ++f) {
            (*f).replace(foundryExp, "");
            if (!s.contains(*f)) {
                s << *f;
            }
        }
        s.sort();

        *avFamilies = ',' + s.join(",") + ',';
    }

    return *avFamilies;
}

QString KHTMLSettings::lookupFont(int i) const
{
    QString font;
    if (d->fonts.count() > i) {
        font = d->fonts[i];
    }
    if (font.isEmpty()) {
        font = d->defaultFonts[i];
    }
    return font;
}

QString KHTMLSettings::stdFontName() const
{
    return lookupFont(0);
}

QString KHTMLSettings::fixedFontName() const
{
    return lookupFont(1);
}

QString KHTMLSettings::serifFontName() const
{
    return lookupFont(2);
}

QString KHTMLSettings::sansSerifFontName() const
{
    return lookupFont(3);
}

QString KHTMLSettings::cursiveFontName() const
{
    return lookupFont(4);
}

QString KHTMLSettings::fantasyFontName() const
{
    return lookupFont(5);
}

void KHTMLSettings::setStdFontName(const QString &n)
{
    while (d->fonts.count() <= 0) {
        d->fonts.append(QString());
    }
    d->fonts[0] = n;
}

void KHTMLSettings::setFixedFontName(const QString &n)
{
    while (d->fonts.count() <= 1) {
        d->fonts.append(QString());
    }
    d->fonts[1] = n;
}

QString KHTMLSettings::userStyleSheet() const
{
    return d->m_userSheet;
}

bool KHTMLSettings::isFormCompletionEnabled() const
{
    return d->m_formCompletionEnabled;
}

int KHTMLSettings::maxFormCompletionItems() const
{
    return d->m_maxFormCompletionItems;
}

const QString &KHTMLSettings::encoding() const
{
    return d->m_encoding;
}

bool KHTMLSettings::followSystemColors() const
{
    return d->m_follow_system_colors;
}

const QColor &KHTMLSettings::textColor() const
{
    return d->m_textColor;
}

const QColor &KHTMLSettings::baseColor() const
{
    return d->m_baseColor;
}

const QColor &KHTMLSettings::linkColor() const
{
    return d->m_linkColor;
}

const QColor &KHTMLSettings::vLinkColor() const
{
    return d->m_vLinkColor;
}

bool KHTMLSettings::autoLoadImages() const
{
    return d->m_bAutoLoadImages;
}

bool KHTMLSettings::unfinishedImageFrame() const
{
    return d->m_bUnfinishedImageFrame;
}

KHTMLSettings::KAnimationAdvice KHTMLSettings::showAnimations() const
{
    return d->m_showAnimations;
}

KHTMLSettings::KSmoothScrollingMode KHTMLSettings::smoothScrolling() const
{
    return d->m_smoothScrolling;
}

KHTMLSettings::KDNSPrefetch KHTMLSettings::dnsPrefetch() const
{
    return d->m_dnsPrefetch;
}

bool KHTMLSettings::isAutoDelayedActionsEnabled() const
{
    return d->m_autoDelayedActionsEnabled;
}

bool KHTMLSettings::jsErrorsEnabled() const
{
    return d->m_jsErrorsEnabled;
}

void KHTMLSettings::setJSErrorsEnabled(bool enabled)
{
    d->m_jsErrorsEnabled = enabled;
    // save it
    KConfigGroup cg(KSharedConfig::openConfig(), "HTML Settings");
    cg.writeEntry("ReportJSErrors", enabled);
    cg.sync();
}

bool KHTMLSettings::allowTabulation() const
{
    return d->m_allowTabulation;
}

bool KHTMLSettings::autoSpellCheck() const
{
    return d->m_autoSpellCheck;
}

QList< QPair< QString, QChar > > KHTMLSettings::fallbackAccessKeysAssignments() const
{
    return d->m_fallbackAccessKeysAssignments;
}

void KHTMLSettings::setJSPopupBlockerPassivePopup(bool enabled)
{
    d->m_jsPopupBlockerPassivePopup = enabled;
    // save it
    KConfigGroup cg(KSharedConfig::openConfig(), "Java/JavaScript Settings");
    cg.writeEntry("PopupBlockerPassivePopup", enabled);
    cg.sync();
}

bool KHTMLSettings::jsPopupBlockerPassivePopup() const
{
    return d->m_jsPopupBlockerPassivePopup;
}

#include "khtml_settings.moc"