updaterinfoparser.cpp

//------------------------------------------------------------------------------
// updaterinfoparser.cpp
//------------------------------------------------------------------------------
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 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
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
// 02110-1301  USA
//
//------------------------------------------------------------------------------
// Copyright (C) 2012 "Zalewa" <zalewapl@gmail.com>
//------------------------------------------------------------------------------
#include "updaterinfoparser.h"

#include "updater/autoupdater.h"
#include "updater/updatepackage.h"
#include "json.h"
#include "log.h"

DClass<UpdaterInfoParser>
{
        public:
                QList<UpdatePackage> packages;

                bool hasMainProgramName(const QVariantMap &metaData) const
                {
                        return metaData.contains(AutoUpdater::MAIN_PROGRAM_PACKAGE_NAME);
                }
};

DPointered(UpdaterInfoParser)
UpdaterInfoParser::UpdaterInfoParser()
{
}

UpdaterInfoParser::~UpdaterInfoParser()
{
}

const QList<UpdatePackage>& UpdaterInfoParser::packages() const
{
        return d->packages;
}

int UpdaterInfoParser::parse(const QByteArray& json)
{
        d->packages.clear();
        QVariant var = QtJson::Json::parse(json);
        if (var.isValid())
        {
                QVariantMap metaData = var.toMap();
                if (d->hasMainProgramName(metaData))
                {
                        foreach (const QString& package, metaData.keys())
                        {
                                int result = parsePackageNode(package, metaData[package].toMap());
                                if (result != AutoUpdater::EC_Ok)
                                {
                                        return result;
                                }
                        }
                }
                else
                {
                        return AutoUpdater::EC_UpdaterInfoMissingMainProgramNode;
                }
        }
        else
        {
                return AutoUpdater::EC_UpdaterInfoCannotParse;
        }
        return AutoUpdater::EC_Ok;
}

int UpdaterInfoParser::parsePackageNode(const QString& packageName, const QVariantMap& map)
{
        UpdatePackage package;
        package.name = packageName;

        if (map.contains("revision"))
        {
                package.revision = map["revision"].toString();
        }
        else
        {
                gLog << tr("Missing update revision info for package %1.").arg(packageName);
                return AutoUpdater::EC_MissingRevisionInfo;
        }

        if (map.contains("display-version"))
        {
                package.displayVersion = map["display-version"].toString();
        }
        else
        {
                package.displayVersion = package.revision;
        }

        if (map.contains("display-name"))
        {
                package.displayName = map["display-name"].toString();
        }
        else
        {
                package.displayName = packageName;
        }

        if (map.contains("URL"))
        {
                QString strUrl = map["URL"].toString();
                package.downloadUrl = strUrl;
                if (!package.downloadUrl.isValid() || package.downloadUrl.isRelative())
                {
                        gLog << tr("Invalid update download URL for package %1: %2")
                                .arg(packageName, strUrl);
                        return  AutoUpdater::EC_InvalidDownloadUrl;
                }
        }
        else
        {
                gLog << tr("Missing update download URL for package %1.").arg(packageName);
                return AutoUpdater::EC_MissingDownloadUrl;
        }

        if (map.contains("URL-script"))
        {
                QString strUrl = map["URL-script"].toString();
                package.downloadScriptUrl = strUrl;
                if (!package.downloadScriptUrl.isValid() || package.downloadScriptUrl.isRelative())
                {
                        gLog << tr("Invalid update script download URL for package %1, %2")
                                .arg(packageName, strUrl);
                        return  AutoUpdater::EC_InvalidDownloadUrl;
                }
        }
        else
        {
                package.downloadScriptUrl = package.downloadUrl.toString() + ".xml";
        }

        d->packages << package;
        return AutoUpdater::EC_Ok;
}