AdBlock: Support for $elemhide and $document exception rules

- with @@||qupzilla.com^$document you can completely disable
  AdBlock from running on qupzilla.com site

src/lib/adblock/adblockmanager.cpp

@@ -90,6 +90,10 @@ QNetworkReply* AdBlockManager::block(const QNetworkRequest &request)
             QVariant v = request.attribute((QNetworkRequest::Attribute)(QNetworkRequest::User + 100));
             WebPage* webPage = static_cast<WebPage*>(v.value<void*>());
             if (WebPage::isPointerSafeToUse(webPage)) {
+                if (!canBeBlocked(webPage->url())) {
+                    return 0;
+                }
+
                 webPage->addAdBlockRule(blockedRule, request.url());
             }
 
@@ -269,6 +273,17 @@ bool AdBlockManager::canRunOnScheme(const QString &scheme) const
     return !(scheme == "file" || scheme == "qrc" || scheme == "qupzilla" || scheme == "data" || scheme == "abp");
 }
 
+bool AdBlockManager::canBeBlocked(const QUrl &url) const
+{
+    foreach(AdBlockSubscription * subscription, m_subscriptions) {
+        if (subscription->adBlockDisabledForUrl(url)) {
+            return false;
+        }
+    }
+
+    return true;
+}
+
 QString AdBlockManager::elementHidingRules() const
 {
     QString rules;
@@ -285,12 +300,16 @@ QString AdBlockManager::elementHidingRules() const
     return rules;
 }
 
-QString AdBlockManager::elementHidingRulesForDomain(const QString &domain) const
+QString AdBlockManager::elementHidingRulesForDomain(const QUrl &url) const
 {
     QString rules;
 
     foreach(AdBlockSubscription * subscription, m_subscriptions) {
-        rules.append(subscription->elementHidingRulesForDomain(domain));
+        if (subscription->elemHideDisabledForUrl(url)) {
+            return QString();
+        }
+
+        rules.append(subscription->elementHidingRulesForDomain(url.host()));
     }
 
     // Remove last ","

src/lib/adblock/adblockmanager.h

@@ -46,7 +46,7 @@ public:
     bool canRunOnScheme(const QString &scheme) const;
 
     QString elementHidingRules() const;
-    QString elementHidingRulesForDomain(const QString &domain) const;
+    QString elementHidingRulesForDomain(const QUrl &url) const;
 
     AdBlockSubscription* subscriptionByName(const QString &name) const;
     QList<AdBlockSubscription*> subscriptions() const;
@@ -69,6 +69,7 @@ public slots:
     AdBlockDialog* showDialog();
 
 private:
+    bool canBeBlocked(const QUrl &url) const;
     static AdBlockManager* s_adBlockManager;
 
     bool m_loaded;

src/lib/adblock/adblockrule.cpp

@@ -112,6 +112,8 @@ AdBlockRule::AdBlockRule(const QString &filter, AdBlockSubscription* subscriptio
     , m_subdocumentException(false)
     , m_xmlhttprequest(false)
     , m_xmlhttprequestException(false)
+    , m_document(false)
+    , m_elemhide(false)
     , m_caseSensitivity(Qt::CaseInsensitive)
 {
     setFilter(filter);
@@ -148,6 +150,16 @@ QString AdBlockRule::cssSelector() const
     return m_cssSelector;
 }
 
+bool AdBlockRule::isDocument() const
+{
+    return m_document;
+}
+
+bool AdBlockRule::isElemhide() const
+{
+    return m_elemhide;
+}
+
 bool AdBlockRule::isDomainRestricted() const
 {
     return m_domainRestricted;
@@ -234,6 +246,18 @@ bool AdBlockRule::networkMatch(const QNetworkRequest &request, const QString &do
     return matched;
 }
 
+bool AdBlockRule::urlMatch(const QUrl &url) const
+{
+    if (!m_document && !m_elemhide) {
+        return false;
+    }
+
+    const QString &encodedUrl = url.toEncoded();
+    const QString &domain = url.host();
+
+    return networkMatch(QNetworkRequest(url), domain, encodedUrl);
+}
+
 bool AdBlockRule::matchDomain(const QString &domain) const
 {
     if (!m_domainRestricted) {
@@ -386,6 +410,14 @@ void AdBlockRule::parseFilter()
                 m_xmlhttprequestException = option.startsWith('~');
                 ++handledOptions;
             }
+            else if (option == "document" && m_exception) {
+                m_document = true;
+                ++handledOptions;
+            }
+            else if (option == "elemhide" && m_exception) {
+                m_elemhide = true;
+                ++handledOptions;
+            }
             else if (option == "collapse") {
                 // Hiding placeholders of blocked elements
                 ++handledOptions;

src/lib/adblock/adblockrule.h

@@ -71,6 +71,9 @@ public:
     bool isCssRule() const;
     QString cssSelector() const;
 
+    bool isDocument() const;
+    bool isElemhide() const;
+
     bool isDomainRestricted() const;
     bool isException() const;
 
@@ -82,6 +85,7 @@ public:
     bool isInternalDisabled() const;
 
     bool networkMatch(const QNetworkRequest &request, const QString &domain, const QString &encodedUrl) const;
+    bool urlMatch(const QUrl &url) const;
 
     bool matchDomain(const QString &domain) const;
     bool matchThirdParty(const QNetworkRequest &request) const;
@@ -128,6 +132,10 @@ private:
     bool m_xmlhttprequest;
     bool m_xmlhttprequestException;
 
+    // Exception only options
+    bool m_document;
+    bool m_elemhide;
+
     Qt::CaseSensitivity m_caseSensitivity;
 };
 

src/lib/adblock/adblocksubscription.cpp

@@ -53,7 +53,6 @@
 #include <QTimer>
 #include <QNetworkReply>
 #include <QDebug>
-// #define ADBLOCKSUBSCRIPTION_DEBUG
 
 AdBlockSubscription::AdBlockSubscription(const QString &title, QObject* parent)
     : QObject(parent)
@@ -203,6 +202,32 @@ const AdBlockRule* AdBlockSubscription::match(const QNetworkRequest &request, co
     return 0;
 }
 
+bool AdBlockSubscription::adBlockDisabledForUrl(const QUrl &url) const
+{
+    foreach(const AdBlockRule * rule, m_documentRules) {
+        if (rule->urlMatch(url)) {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+bool AdBlockSubscription::elemHideDisabledForUrl(const QUrl &url) const
+{
+    if (adBlockDisabledForUrl(url)) {
+        return true;
+    }
+
+    foreach(const AdBlockRule * rule, m_elemhideRules) {
+        if (rule->urlMatch(url)) {
+            return true;
+        }
+    }
+
+    return false;
+}
+
 QString AdBlockSubscription::elementHidingRules() const
 {
     return m_elementHidingRules;
@@ -296,8 +321,11 @@ void AdBlockSubscription::populateCache()
     m_networkBlockRules.clear();
     m_domainRestrictedCssRules.clear();
     m_elementHidingRules.clear();
+    m_documentRules.clear();
+    m_elemhideRules.clear();
 
-    for (int i = 0; i < m_rules.count(); ++i) {
+    int count = m_rules.count();
+    for (int i = 0; i < count; ++i) {
         const AdBlockRule* rule = &m_rules.at(i);
         if (!rule->isEnabled()) {
             continue;
@@ -310,10 +338,14 @@ void AdBlockSubscription::populateCache()
             else {
                 m_elementHidingRules.append(rule->cssSelector() + ",");
             }
-            continue;
         }
-
+        else if (rule->isDocument()) {
-        if (rule->isException()) {
+            m_documentRules.append(rule);
+        }
+        else if (rule->isElemhide()) {
+            m_elemhideRules.append(rule);
+        }
+        else if (rule->isException()) {
             m_networkExceptionRules.append(rule);
         }
         else {

src/lib/adblock/adblocksubscription.h

@@ -46,6 +46,7 @@
 #ifndef ADBLOCKSUBSCRIPTION_H
 #define ADBLOCKSUBSCRIPTION_H
 
+#include <QVarLengthArray>
 #include <QList>
 #include <QUrl>
 
@@ -77,6 +78,9 @@ public:
 
     const AdBlockRule* match(const QNetworkRequest &request, const QString &urlDomain, const QString &urlString) const;
 
+    bool adBlockDisabledForUrl(const QUrl &url) const;
+    bool elemHideDisabledForUrl(const QUrl &url) const;
+
     QString elementHidingRules() const;
     QString elementHidingRulesForDomain(const QString &domain) const;
 
@@ -112,10 +116,12 @@ protected:
     QList<AdBlockRule> m_rules;
     QString m_elementHidingRules;
 
-    // sorted list
+    QVarLengthArray<const AdBlockRule*> m_networkExceptionRules;
-    QList<const AdBlockRule*> m_networkExceptionRules;
+    QVarLengthArray<const AdBlockRule*> m_networkBlockRules;
-    QList<const AdBlockRule*> m_networkBlockRules;
+    QVarLengthArray<const AdBlockRule*> m_domainRestrictedCssRules;
-    QList<const AdBlockRule*> m_domainRestrictedCssRules;
+
+    QVarLengthArray<const AdBlockRule*> m_documentRules;
+    QVarLengthArray<const AdBlockRule*> m_elemhideRules;
 
 private:
     QString m_title;

src/lib/webview/webpage.cpp

@@ -543,7 +543,11 @@ void WebPage::cleanBlockedObjects()
     }
 
     // Apply domain-specific element hiding rules
-    QString elementHiding = AdBlockManager::instance()->elementHidingRulesForDomain(url().host());
+    QString elementHiding = AdBlockManager::instance()->elementHidingRulesForDomain(url());
+    if (elementHiding.isEmpty()) {
+        return;
+    }
+
     elementHiding.append("{display: none !important;}\n</style>");
 
     QWebElement bodyElement = docElement.findFirst("body");

src/plugins/TestPlugin/translations/cs_CZ.ts

@@ -35,7 +35,7 @@
         <location filename="../testplugin_sidebar.cpp" line="32"/>
         <location filename="../testplugin_sidebar.cpp" line="37"/>
         <source>Testing Sidebar</source>
-        <translation type="unfinished"></translation>
+        <translation>Testovací postranní bar</translation>
     </message>
 </context>
 </TS>