plasma-framework/package.cpp

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/******************************************************************************
* Copyright 2007 by Aaron Seigo <aseigo@kde.org> *
* Copyright 2007 by Riccardo Iaconelli <riccardo@kde.org> *
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Library General Public *
* License as published by the Free Software Foundation; either *
* version 2 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 *
* Library General Public License for more details. *
* *
* You should have received a copy of the GNU Library General Public License *
* along with this library; see the file COPYING.LIB. If not, write to *
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, *
* Boston, MA 02110-1301, USA. *
*******************************************************************************/
#include "package.h"
#include <QDir>
#include <QFile>
#include <KArchiveDirectory>
#include <KArchiveEntry>
#include <KComponentData>
#include <KIO/FileCopyJob>
#include <KIO/Job>
#include <KPluginInfo>
#include <KStandardDirs>
#include <KTemporaryFile>
#include <KZip>
#include <KDebug>
#include "packagemetadata.h"
#include "packagestructure.h"
namespace Plasma
{
class Package::Private
{
public:
Private(const PackageStructure& st, const QString& p)
: structure(st),
basePath(p),
valid(QFile::exists(basePath))
{
if (valid && basePath[basePath.length() - 1] != '/') {
basePath.append('/');
}
structure.addFileDefinition("metadata", "metadata.desktop",
i18n("Package Meta Data File"));
structure.setRequired("metadata", true);
}
PackageStructure structure;
QString basePath;
bool valid;
};
Package::Package(const QString& packageRoot, const QString& package,
const PackageStructure& structure)
: d(new Private(structure, packageRoot + '/' + package))
{
}
Package::~Package()
{
delete d;
}
bool Package::isValid() const
{
if (!d->valid) {
return false;
}
foreach (const char *dir, d->structure.requiredDirectories()) {
if (!QFile::exists(d->basePath + d->structure.path(dir))) {
d->valid = false;
return false;
}
}
foreach (const char *file, d->structure.requiredFiles()) {
if (!QFile::exists(d->basePath + d->structure.path(file))) {
d->valid = false;
return false;
}
}
return true;
}
QString Package::filePath(const char* fileType, const QString& filename) const
{
if (!d->valid) {
return QString();
}
QString path = d->structure.path(fileType);
if (path.isEmpty()) {
return QString();
}
path.prepend(d->basePath);
if (!filename.isEmpty()) {
path.append("/").append(filename);
}
if (QFile::exists(path)) {
return path;
}
return QString();
}
QString Package::filePath(const char* fileType) const
{
return filePath(fileType, QString());
}
QStringList Package::entryList(const char* fileType) const
{
if (!d->valid) {
return QStringList();
}
QString path = d->structure.path(fileType);
if (path.isEmpty()) {
return QStringList();
}
QDir dir(d->basePath + path);
if (!dir.exists()) {
return QStringList();
}
return dir.entryList(QDir::Files | QDir::Readable);
}
//TODO: provide a version of this that allows one to ask for certain types of packages, etc?
// should we be using KService here instead/as well?
QStringList Package::knownPackages(const QString& packageRoot) // static
{
QDir dir(packageRoot);
if (!dir.exists()) {
return QStringList();
}
QStringList packages;
foreach (const QString& dir, dir.entryList(QDir::AllDirs | QDir::Readable)) {
QString metadata = packageRoot + '/' + dir + "/metadata.desktop";
if (QFile::exists(metadata)) {
PackageMetadata m(metadata);
packages << m.name();
}
}
return packages;
}
bool Package::installPackage(const QString& package,
const QString& packageRoot) // static
{
//TODO: report *what* failed if something does fail
QDir root(packageRoot);
if (!root.exists()) {
KStandardDirs::makeDir(packageRoot);
if (!root.exists()) {
return false;
}
}
if (!QFile::exists(package)) {
return false;
}
KZip archive(package);
if (!archive.open(QIODevice::ReadOnly)) {
return false;
}
const KArchiveDirectory* source = archive.directory();
const KArchiveEntry* metadata = source->entry("metadata.desktop");
if (!metadata) {
return false;
}
QFile f(package);
QString tempdir = packageRoot + '/' + f.fileName();
if (QFile::exists(tempdir)) {
return false;
}
source->copyTo(tempdir);
QString metadataPath = tempdir + "/metadata.desktop";
if (!QFile::exists(metadataPath)) {
KIO::SimpleJob* job = KIO::file_delete(tempdir);
job->exec();
return false;
}
PackageMetadata meta(metadataPath);
QString targetName = meta.name();
if (targetName.isEmpty()) {
KIO::SimpleJob* job = KIO::file_delete(tempdir);
job->exec();
return false;
}
targetName = packageRoot + '/' + targetName;
if (QFile::exists(targetName)) {
KIO::SimpleJob* job = KIO::file_delete(tempdir);
job->exec();
return false;
}
KIO::FileCopyJob* job = KIO::file_move(tempdir, targetName);
if (!job->exec()) {
KIO::SimpleJob* job = KIO::file_delete(tempdir);
job->exec();
return false;
}
// and now we register it as a service =)
targetName.append("/metadata.desktop");
QString service = KStandardDirs::locateLocal("services",
KGlobal::mainComponent().componentName());
KPluginInfo pluginInfo(targetName);
if (pluginInfo.pluginName().isEmpty()) {
// should not installing it as a service disqualify it?
// i don't think so since KServiceTypeTrader may not be
// used by the installing app in any case, and the
// package is properly installed - aseigo
return true;
}
service.append(pluginInfo.pluginName()).append(".desktop");
job = KIO::file_copy(targetName, service);
return job->exec();
}
bool Package::createPackage(const PackageMetadata & metadata,
const QString& source,
const QString& destination)
{
if (!metadata.isComplete()) {
kWarning(550) << "Metadata file is not complete" ;
return false;
}
KTemporaryFile metadataFile;
metadataFile.open();
metadata.write(metadataFile.fileName());
KTemporaryFile releaseNotes;
//We just write the content of the QString containing the metadata in an
//empty temporary file that we will package with the name metadata.desktop
if (releaseNotes.open()) {
QTextStream out(&releaseNotes);
if (!metadata.releaseNotes().isEmpty()) {
out << metadata.releaseNotes();
} else {
out << "NO_RELEASE_NOTES";
}
}
//OK, we've got the temporary file with the metadata in it.
//Now we just need to put everything into a zip archive.
KZip creation(destination);
creation.setCompression(KZip::NoCompression);
if (!creation.open(QIODevice::WriteOnly)) {
return false;
}
creation.addLocalFile(metadataFile.fileName(), "metadata.desktop");
creation.addLocalFile(releaseNotes.fileName(), "notes.txt");
if (!metadata.icon().isEmpty()) {
//TODO: just one icon?
creation.addLocalFile(metadata.icon(), "icon.png");
}
if (!metadata.preview().isEmpty()) {
//TODO: just one icon?
creation.addLocalFile(metadata.preview(), "preview.png");
}
creation.addLocalDirectory(source, "contents");
creation.close();
return true;
}
} // Namespace