File indexing completed on 2024-05-19 04:59:16

 /* ============================================================
 * GreaseMonkey plugin for Falkon
 * Copyright (C) 2012-2017 David Rosca <nowrep@gmail.com>
 *
 * 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 "gm_downloader.h"
 #include "gm_manager.h"
 #include "gm_script.h"
 
 #include "webpage.h"
 #include "mainapplication.h"
 #include "networkmanager.h"
 #include "qztools.h"
 
 #include <QFile>
 #include <QSettings>
 #include <QNetworkReply>
 
 GM_Downloader::GM_Downloader(const QUrl &url, GM_Manager *manager, Mode mode)
     : QObject()
     , m_manager(manager)
 {
     m_reply = mApp->networkManager()->get(QNetworkRequest(url));
     if (mode == DownloadMainScript) {
         connect(m_reply, &QNetworkReply::finished, this, &GM_Downloader::scriptDownloaded);
     } else {
         connect(m_reply, &QNetworkReply::finished, this, &GM_Downloader::requireDownloaded);
     }
 }
 
 void GM_Downloader::updateScript(const QString &fileName)
 {
     m_fileName = fileName;
 }
 
 void GM_Downloader::scriptDownloaded()
 {
     Q_ASSERT(m_reply == qobject_cast<QNetworkReply*>(sender()));
 
     deleteLater();
     m_reply->deleteLater();
 
     if (m_reply->error() != QNetworkReply::NoError) {
         qWarning() << "GreaseMonkey: Cannot download script" << m_reply->errorString();
         Q_EMIT error();
         return;
     }
 
     const QByteArray response = QString::fromUtf8(m_reply->readAll()).toUtf8();
 
     if (!response.contains(QByteArray("// ==UserScript=="))) {
         qWarning() << "GreaseMonkey: Script does not contain UserScript header" << m_reply->request().url();
         Q_EMIT error();
         return;
     }
 
     if (m_fileName.isEmpty()) {
         const QString filePath = QSL("%1/%2").arg(m_manager->scriptsDirectory(), QzTools::getFileNameFromUrl(m_reply->url()));
         m_fileName = QzTools::ensureUniqueFilename(filePath);
     }
 
     QFile file(m_fileName);
 
     if (!file.open(QFile::WriteOnly)) {
         qWarning() << "GreaseMonkey: Cannot open file for writing" << m_fileName;
         Q_EMIT error();
         return;
     }
 
     file.write(response);
     file.close();
 
     Q_EMIT finished(m_fileName);
 }
 
 void GM_Downloader::requireDownloaded()
 {
     Q_ASSERT(m_reply == qobject_cast<QNetworkReply*>(sender()));
 
     deleteLater();
     m_reply->deleteLater();
 
     if (m_reply != qobject_cast<QNetworkReply*>(sender())) {
         Q_EMIT error();
         return;
     }
 
     if (m_reply->error() != QNetworkReply::NoError) {
         qWarning() << "GreaseMonkey: Cannot download require script" << m_reply->errorString();
         Q_EMIT error();
         return;
     }
 
     const QByteArray response = QString::fromUtf8(m_reply->readAll()).toUtf8();
 
     if (response.isEmpty()) {
         qWarning() << "GreaseMonkey: Empty script downloaded" << m_reply->request().url();
         Q_EMIT error();
         return;
     }
 
     QSettings settings(m_manager->settingsPath() + QL1S("/greasemonkey/requires/requires.ini"), QSettings::IniFormat);
     settings.beginGroup("Files");
 
     if (m_fileName.isEmpty()) {
         m_fileName = settings.value(m_reply->request().url().toString()).toString();
         if (m_fileName.isEmpty()) {
             QString name = QFileInfo(m_reply->request().url().path()).fileName();
             if (name.isEmpty()) {
                 name = QSL("require.js");
             } else if (!name.endsWith(QL1S(".js"))) {
                 name.append(QSL(".js"));
             }
             const QString filePath = m_manager->settingsPath() + QL1S("/greasemonkey/requires/") + name;
             m_fileName = QzTools::ensureUniqueFilename(filePath, QSL("%1"));
         }
         if (!QFileInfo(m_fileName).isAbsolute()) {
             m_fileName.prepend(m_manager->settingsPath() + QL1S("/greasemonkey/requires/"));
         }
     }
 
     QFile file(m_fileName);
 
     if (!file.open(QFile::WriteOnly)) {
         qWarning() << "GreaseMonkey: Cannot open file for writing" << m_fileName;
         Q_EMIT error();
         return;
     }
 
     file.write(response);
     file.close();
 
     settings.setValue(m_reply->request().url().toString(), QFileInfo(m_fileName).fileName());
 
     Q_EMIT finished(m_fileName);
 }