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/*******************************************************************************
**
** smolbote: yet another qute browser
** Copyright (C) 2017 Xian Nox
**
** This program is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** This program 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 General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with this program. If not, see <http://www.gnu.org/licenses/>.
**
******************************************************************************/
#include "filtercollection.h"
#include "ui_subscriptionform.h"
#include "browser.h"
#include <QNetworkRequest>
#include <QNetworkReply>
#include <QJsonDocument>
#include <QJsonObject>
#include <QJsonArray>
#include <QListWidget>
#include <QLabel>
#include <QTreeView>
#include "filtertree.h"
#include "filternode.h"
FilterCollection::FilterCollection(const QString path, QWidget *parent) :
QWidget(parent),
ui(new Ui::SubscriptionForm)
{
ui->setupUi(this);
m_name = "TODO";
m_url = path;
qDebug("Adding subscription [%s]", qUtf8Printable(m_url));
m_filters = new FilterTree(this);
ui->treeView->setModel(m_filters);
QFile filterFile(m_url);
if(!filterFile.open(QIODevice::ReadOnly)) {
qWarning("Could not open filter!");
return;
}
QJsonDocument filters(QJsonDocument::fromJson(filterFile.readAll()));
load(filters.object());
qDebug("Added %i rules", m_rules.size());
}
FilterCollection::~FilterCollection()
{
delete ui;
}
QString FilterCollection::name() const
{
return m_name;
}
/**
* Check if a URL request should be blocked or not
* @param info
* @return true if it should be blocked; false otherwise
*/
FilterCollection::MatchResult FilterCollection::match(QWebEngineUrlRequestInfo &info)
{
MatchResult result;
for(FilterRule *rule : qAsConst(m_rules)) {
result.match = rule->hasMatch(info);
if(result.match) {
result.block = rule->shouldBlock(info);
} else {
result.block = false;
}
result.pattern = rule->filter();
return result;
}
// request matches neither whitelist nor blacklist
result.match = false;
result.block = false;
return result;
}
void FilterCollection::load(const QJsonObject &json)
{
m_name = json["name"].toString();
ui->title->setText(m_name);
m_url = json["url"].toString();
ui->homepage->setText(m_url);
FilterRule *r;
for(QJsonValue v : json["rules"].toArray()) {
r = createRule(v.toObject());
m_rules.append(r);
}
}
/**
* Create rule from JSON object
* @param obj
* @return
*/
FilterRule* FilterCollection::createRule(const QJsonObject &obj)
{
FilterRule *rule;
FilterRule::ResourceRules r;
r.allowed = parseJsonRules(obj["allowTypes"]);
r.blocked = parseJsonRules(obj["blockTypes"]);
rule = new FilterRule(obj["firstPartyUrl"].toString(), obj["requestUrl"].toString(), r, obj["shouldBlock"].toBool(), this);
QList<QVariant> nodeData;
nodeData << obj["firstPartyUrl"].toString() << obj["requestUrl"].toString();
m_filters->addFilter(nodeData);
return rule;
}
FilterRule::Resources FilterCollection::parseJsonRules(const QJsonValue &obj)
{
FilterRule::Resources res;
for(QJsonValue v : obj.toArray()) {
QString t = v.toString();
if(t == "MainFrame") {
res.setFlag(FilterRule::ResourceType::MainFrame);
} else if(t == "SubFrame") {
res.setFlag(FilterRule::ResourceType::SubFrame);
} else if(t == "Stylesheet") {
res.setFlag(FilterRule::ResourceType::Stylesheet);
} else if(t == "Script") {
res.setFlag(FilterRule::ResourceType::Script);
} else if(t == "Image") {
res.setFlag(FilterRule::ResourceType::Image);
} else if(t == "FontResource") {
res.setFlag(FilterRule::ResourceType::FontResource);
} else if(t == "SubResource") {
res.setFlag(FilterRule::ResourceType::SubResource);
} else if(t == "Object") {
res.setFlag(FilterRule::ResourceType::Object);
} else if(t == "Media") {
res.setFlag(FilterRule::ResourceType::Media);
} else if(t == "Worker") {
res.setFlag(FilterRule::ResourceType::Worker);
} else if(t == "SharedWorker") {
res.setFlag(FilterRule::ResourceType::SharedWorker);
} else if(t == "Prefetch") {
res.setFlag(FilterRule::ResourceType::Prefetch);
} else if(t == "Favicon") {
res.setFlag(FilterRule::ResourceType::Favicon);
} else if(t == "Xhr") {
res.setFlag(FilterRule::ResourceType::Xhr);
} else if(t == "Ping") {
res.setFlag(FilterRule::ResourceType::Ping);
} else if(t == "ServiceWorker") {
res.setFlag(FilterRule::ResourceType::ServiceWorker);
} else if(t == "CspWorker") {
res.setFlag(FilterRule::ResourceType::CspReport);
} else if(t == "PluginResource") {
res.setFlag(FilterRule::ResourceType::PluginResource);
}
}
return res;
}
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