1 files changed, 75 insertions, 0 deletions
diff --git a/lib/urlfilter/adblock/parser.cpp b/lib/urlfilter/adblock/parser.cpp
new file mode 100644
index 0000000..1e7f0bc
--- /dev/null
+++ b/lib/urlfilter/adblock/parser.cpp
@@ -0,0 +1,75 @@
+/*
+ * This file is part of smolbote. It's copyrighted by the contributors recorded
+ * in the version control history of the file, available from its original
+ * location: https://neueland.iserlohn-fortress.net/gitea/aqua/smolbote
+ *
+ * SPDX-License-Identifier: GPL-3.0
+ */
+
+#include "parser.h"
+
+std::optional<std::pair<QString, QString>> parseComment(QString &line)
+{
+    const QLatin1Literal separator(": ");
+    if(line.contains(separator)) {
+        const QStringList comment = line.mid(1).split(QLatin1Literal(": "));
+        return std::make_pair(comment.at(0).trimmed(), comment.at(1).trimmed());
+    } else
+        return std::nullopt;
+}
+
+std::optional<std::pair<QWebEngineUrlRequestInfo::ResourceType, bool>> parseResourceOption(const QString &option)
+{
+    const bool exception = !option.startsWith(QLatin1Literal("~"));
+
+    if(option.endsWith(QLatin1Literal("script"))) {
+        //  external scripts loaded via HTML script tag
+        return std::make_pair(QWebEngineUrlRequestInfo::ResourceTypeScript, exception);
+
+    } else if(option.endsWith(QLatin1Literal("image"))) {
+        // regular images, typically loaded via HTML img tag
+        return std::make_pair(QWebEngineUrlRequestInfo::ResourceTypeImage, exception);
+
+    } else if(option.endsWith(QLatin1Literal("stylesheet"))) {
+        // external CSS stylesheet files
+        return std::make_pair(QWebEngineUrlRequestInfo::ResourceTypeStylesheet, exception);
+
+    } else if(option.endsWith(QLatin1Literal("object"))) {
+        // content handled by browser plugins, e.g. Flash or Java
+        return std::make_pair(QWebEngineUrlRequestInfo::ResourceTypeObject, exception);
+
+    } else if(option.endsWith(QLatin1Literal("xmlhttprequest"))) {
+        //  requests started using the XMLHttpRequest object or fetch() API
+        return std::make_pair(QWebEngineUrlRequestInfo::ResourceTypeXhr, exception);
+
+    } else if(option.endsWith(QLatin1Literal("object-subrequest"))) {
+        // requests started by plugins like Flash
+        return std::make_pair(QWebEngineUrlRequestInfo::ResourceTypePluginResource, exception);
+
+    } else if(option.endsWith(QLatin1Literal("subdocument"))) {
+        // embedded pages, usually included via HTML frames
+        return std::make_pair(QWebEngineUrlRequestInfo::ResourceTypeSubFrame, exception);
+
+    } else if(option.endsWith(QLatin1Literal("ping"))) {
+        // requests started by <a ping> or navigator.sendBeacon()
+        return std::make_pair(QWebEngineUrlRequestInfo::ResourceTypePing, exception);
+
+    } else if(option.endsWith(QLatin1Literal("websocket"))) {
+        // requests initiated via WebSocket object
+        qDebug("Resource type 'websocket' not available");
+
+    } else if(option.endsWith(QLatin1Literal("webrtc"))) {
+        // connections opened via RTCPeerConnection instances to ICE servers
+        qDebug("Resource type 'webrtc' not available");
+
+    } else if(option.endsWith(QLatin1Literal("document"))) {
+        // the page itself
+        return std::make_pair(QWebEngineUrlRequestInfo::ResourceTypeMainFrame, exception);
+
+    } else if(option.endsWith(QLatin1Literal("other"))) {
+        return std::make_pair(QWebEngineUrlRequestInfo::ResourceTypeUnknown, exception);
+    }
+
+    qDebug("TODO: %s", qUtf8Printable(option));
+    return std::nullopt;
+}