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plasma-framework/packagestructure.cpp

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/******************************************************************************
* Copyright 2007 by Aaron Seigo <aseigo@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 "packagestructure.h"
#include "config-plasma.h"
#include <QDir>
#include <QMap>
#include <QFileInfo>
#include <kconfiggroup.h>
#include <kdebug.h>
#include <kdesktopfile.h>
#ifndef PLASMA_NO_KIO
#include <kio/copyjob.h>
#include <kio/deletejob.h>
#include <kio/jobclasses.h>
#include <kio/job.h>
#endif
#include <kmimetype.h>
#include <kstandarddirs.h>
#include <kservicetypetrader.h>
#include <ktar.h>
#include <ktemporaryfile.h>
#include <ktempdir.h>
#include <kurl.h>
#include <kzip.h>
#include "package.h"
#include "private/packages_p.h"
#include "theme.h"
namespace Plasma
{
class ContentStructure
{
public:
ContentStructure()
: directory(false),
required(false)
{
}
ContentStructure(const ContentStructure &other)
{
paths = other.paths;
name = other.name;
mimeTypes = other.mimeTypes;
directory = other.directory;
required = other.required;
}
QStringList paths;
QString name;
QStringList mimeTypes;
bool directory : 1;
bool required : 1;
};
class PackageStructurePrivate
{
public:
PackageStructurePrivate(const QString &t)
: type(t),
packageRoot("plasma/plasmoids"),
servicePrefix("plasma-applet-"),
metadata(0),
externalPaths(false)
{
contentsPrefixPaths << "contents/";
}
~PackageStructurePrivate()
{
delete metadata;
}
void createPackageMetadata(const QString &path);
QStringList entryList(const QString &prefix, const QString &requestedPath);
static QHash<QString, PackageStructure::Ptr> structures;
QString type;
QString path;
QStringList contentsPrefixPaths;
QString packageRoot;
QString servicePrefix;
QMap<QByteArray, ContentStructure> contents;
QStringList mimeTypes;
KPluginInfo *metadata;
bool externalPaths;
};
QHash<QString, PackageStructure::Ptr> PackageStructurePrivate::structures;
PackageStructure::PackageStructure(QObject *parent, const QString &type)
: QObject(parent),
d(new PackageStructurePrivate(type))
{
}
PackageStructure::~PackageStructure()
{
delete d;
}
PackageStructure::Ptr PackageStructure::load(const QString &packageFormat)
{
if (packageFormat.isEmpty()) {
return Ptr(new PackageStructure());
}
PackageStructure::Ptr structure = PackageStructurePrivate::structures[packageFormat];
if (structure) {
return structure;
}
if (packageFormat == "Plasma/Applet") {
structure = defaultPackageStructure(AppletComponent);
structure->d->type = "Plasma/Applet";
} else if (packageFormat == "Plasma/DataEngine") {
structure = defaultPackageStructure(DataEngineComponent);
structure->d->type = "Plasma/DataEngine";
} else if (packageFormat == "Plasma/Runner") {
structure = defaultPackageStructure(RunnerComponent);
structure->d->type = "Plasma/Runner";
} else if (packageFormat == "Plasma/Wallpaper") {
structure = defaultPackageStructure(WallpaperComponent);
structure->d->type = "Plasma/Wallpaper";
} else if (packageFormat == "Plasma/Theme") {
structure = Theme::packageStructure();
structure->d->type = "Plasma/Theme";
} else if (packageFormat == "Plasma/Generic") {
structure = defaultPackageStructure(GenericComponent);
structure->d->type = "Plasma/Generic";
structure->setDefaultPackageRoot(KStandardDirs::locate("data", "plasmapackages"));
}
if (structure) {
PackageStructurePrivate::structures[packageFormat] = structure;
return structure;
}
// first we check for plugins in sycoca
QString constraint = QString("[X-KDE-PluginInfo-Name] == '%1'").arg(packageFormat);
KService::List offers =
KServiceTypeTrader::self()->query("Plasma/PackageStructure", constraint);
QVariantList args;
QString error;
foreach (const KService::Ptr &offer, offers) {
PackageStructure::Ptr structure(
offer->createInstance<Plasma::PackageStructure>(0, args, &error));
if (structure) {
return structure;
}
kDebug() << "Couldn't load PackageStructure for" << packageFormat
<< "! reason given: " << error;
}
// if that didn't give us any love, then we try to load from a config file
structure = new PackageStructure();
QString configPath("plasma/packageformats/%1rc");
configPath = KStandardDirs::locate("data", configPath.arg(packageFormat));
if (!configPath.isEmpty()) {
KConfig config(configPath);
structure->read(&config);
PackageStructurePrivate::structures[packageFormat] = structure;
return structure;
}
// try to load from absolute file path
KUrl url(packageFormat);
if (url.isLocalFile()) {
KConfig config(url.toLocalFile(), KConfig::SimpleConfig);
structure->read(&config);
PackageStructurePrivate::structures[structure->type()] = structure;
}
#ifndef PLASMA_NO_KIO
else {
KTemporaryFile tmp;
if (tmp.open()) {
KIO::Job *job = KIO::file_copy(url, KUrl(tmp.fileName()),
-1, KIO::Overwrite | KIO::HideProgressInfo);
if (job->exec()) {
KConfig config(tmp.fileName(), KConfig::SimpleConfig);
structure->read(&config);
PackageStructurePrivate::structures[structure->type()] = structure;
}
}
}
#endif
return structure;
}
PackageStructure &PackageStructure::operator=(const PackageStructure &rhs)
{
if (this == &rhs) {
return *this;
}
*d = *rhs.d;
return *this;
}
QString PackageStructure::type() const
{
return d->type;
}
QList<const char*> PackageStructure::directories() const
{
QList<const char*> dirs;
QMap<QByteArray, ContentStructure>::const_iterator it = d->contents.constBegin();
while (it != d->contents.constEnd()) {
if (it.value().directory) {
dirs << it.key();
}
++it;
}
return dirs;
}
QList<const char*> PackageStructure::requiredDirectories() const
{
QList<const char*> dirs;
QMap<QByteArray, ContentStructure>::const_iterator it = d->contents.constBegin();
while (it != d->contents.constEnd()) {
if (it.value().directory &&
it.value().required) {
dirs << it.key();
}
++it;
}
return dirs;
}
QList<const char*> PackageStructure::files() const
{
QList<const char*> files;
QMap<QByteArray, ContentStructure>::const_iterator it = d->contents.constBegin();
while (it != d->contents.constEnd()) {
if (!it.value().directory) {
files << it.key();
}
++it;
}
return files;
}
QList<const char*> PackageStructure::requiredFiles() const
{
QList<const char*> files;
QMap<QByteArray, ContentStructure>::const_iterator it = d->contents.constBegin();
while (it != d->contents.constEnd()) {
if (!it.value().directory && it.value().required) {
files << it.key();
}
++it;
}
return files;
}
QStringList PackageStructure::entryList(const char *key)
{
QString p = path(key);
if (p.isEmpty()) {
return QStringList();
}
QStringList list;
if (d->contentsPrefixPaths.isEmpty()) {
// no prefixes is the same as d->contentsPrefixPths with QStringList() << QString()
list << d->entryList(QString(), p);
} else {
foreach (QString prefix, d->contentsPrefixPaths) {
list << d->entryList(prefix, p);
}
}
return list;
}
QStringList PackageStructurePrivate::entryList(const QString &prefix, const QString &requestedPath)
{
QDir dir(path + prefix + requestedPath);
if (externalPaths) {
return dir.entryList(QDir::Files | QDir::Readable);
}
// ensure that we don't return files outside of our base path
// due to symlink or ../ games
QString canonicalized = dir.canonicalPath();
if (canonicalized.startsWith(path)) {
return dir.entryList(QDir::Files | QDir::Readable);
}
return QStringList();
}
void PackageStructure::addDirectoryDefinition(const char *key,
const QString &path, const QString &name)
{
ContentStructure s;
if (d->contents.contains(key)) {
s = d->contents[key];
}
if (!name.isEmpty()) {
s.name = name;
}
s.paths.append(path);
s.directory = true;
d->contents[key] = s;
}
void PackageStructure::addFileDefinition(const char *key, const QString &path, const QString &name)
{
ContentStructure s;
if (d->contents.contains(key)) {
s = d->contents[key];
}
if (!name.isEmpty()) {
s.name = name;
}
s.paths.append(path);
s.directory = false;
d->contents[key] = s;
}
void PackageStructure::removeDefinition(const char *key)
{
d->contents.remove(key);
}
QString PackageStructure::path(const char *key) const
{
//kDebug() << "looking for" << key;
QMap<QByteArray, ContentStructure>::const_iterator it = d->contents.constFind(key);
if (it == d->contents.constEnd()) {
return QString();
}
//kDebug() << "found" << key << "and the value is" << it.value().paths.first();
return it.value().paths.first();
}
QStringList PackageStructure::searchPath(const char *key) const
{
//kDebug() << "looking for" << key;
QMap<QByteArray, ContentStructure>::const_iterator it = d->contents.constFind(key);
if (it == d->contents.constEnd()) {
return QStringList();
}
//kDebug() << "found" << key << "and the value is" << it.value().paths;
return it.value().paths;
}
QString PackageStructure::name(const char *key) const
{
QMap<QByteArray, ContentStructure>::const_iterator it = d->contents.constFind(key);
if (it == d->contents.constEnd()) {
return QString();
}
return it.value().name;
}
void PackageStructure::setRequired(const char *key, bool required)
{
QMap<QByteArray, ContentStructure>::iterator it = d->contents.find(key);
if (it == d->contents.end()) {
return;
}
it.value().required = required;
}
bool PackageStructure::isRequired(const char *key) const
{
QMap<QByteArray, ContentStructure>::const_iterator it = d->contents.constFind(key);
if (it == d->contents.constEnd()) {
return false;
}
return it.value().required;
}
void PackageStructure::setDefaultMimeTypes(QStringList mimeTypes)
{
d->mimeTypes = mimeTypes;
}
void PackageStructure::setMimeTypes(const char *key, QStringList mimeTypes)
{
QMap<QByteArray, ContentStructure>::iterator it = d->contents.find(key);
if (it == d->contents.end()) {
return;
}
it.value().mimeTypes = mimeTypes;
}
QStringList PackageStructure::mimeTypes(const char *key) const
{
QMap<QByteArray, ContentStructure>::const_iterator it = d->contents.constFind(key);
if (it == d->contents.constEnd()) {
return QStringList();
}
if (it.value().mimeTypes.isEmpty()) {
return d->mimeTypes;
}
return it.value().mimeTypes;
}
void PackageStructure::setPath(const QString &path)
{
KUrl url(path);
QDir dir(url.toLocalFile());
QString basePath = dir.canonicalPath();
bool valid = QFile::exists(basePath);
if (valid) {
QFileInfo info(basePath);
if (info.isDir() && !basePath.endsWith('/')) {
basePath.append('/');
}
//kDebug() << "basePath is" << basePath;
} else {
kDebug() << path << "invalid, basePath is" << basePath;
return;
}
if (d->path == basePath) {
return;
}
d->path = basePath;
delete d->metadata;
d->metadata = 0;
pathChanged();
}
QString PackageStructure::path() const
{
return d->path;
}
void PackageStructure::pathChanged()
{
// default impl does nothing, this is a hook for subclasses.
}
void PackageStructure::read(const KConfigBase *config)
{
d->contents.clear();
d->mimeTypes.clear();
KConfigGroup general(config, QString());
d->type = general.readEntry("Type", QString());
d->contentsPrefixPaths = general.readEntry("ContentsPrefixPaths", d->contentsPrefixPaths);
d->packageRoot = general.readEntry("DefaultPackageRoot", d->packageRoot);
d->externalPaths = general.readEntry("AllowExternalPaths", d->externalPaths);
QStringList groups = config->groupList();
foreach (const QString &group, groups) {
KConfigGroup entry(config, group);
QByteArray key = group.toAscii();
QString path = entry.readEntry("Path", QString());
QString name = entry.readEntry("Name", QString());
QStringList mimeTypes = entry.readEntry("Mimetypes", QStringList());
bool directory = entry.readEntry("Directory", false);
bool required = entry.readEntry("Required", false);
if (directory) {
addDirectoryDefinition(key, path, name);
} else {
addFileDefinition(key, path, name);
}
setMimeTypes(key, mimeTypes);
setRequired(key, required);
}
}
void PackageStructure::write(KConfigBase *config) const
{
KConfigGroup general = KConfigGroup(config, "");
general.writeEntry("Type", type());
general.writeEntry("ContentsPrefixPaths", d->contentsPrefixPaths);
general.writeEntry("DefaultPackageRoot", d->packageRoot);
general.writeEntry("AllowExternalPaths", d->externalPaths);
QMap<QByteArray, ContentStructure>::const_iterator it = d->contents.constBegin();
while (it != d->contents.constEnd()) {
KConfigGroup group = config->group(it.key());
group.writeEntry("Path", it.value().paths);
group.writeEntry("Name", it.value().name);
if (!it.value().mimeTypes.isEmpty()) {
group.writeEntry("Mimetypes", it.value().mimeTypes);
}
if (it.value().directory) {
group.writeEntry("Directory", true);
}
if (it.value().required) {
group.writeEntry("Required", true);
}
++it;
}
}
QStringList PackageStructure::contentsPrefixPaths() const
{
return d->contentsPrefixPaths;
}
void PackageStructure::setContentsPrefixPaths(const QStringList &prefixPaths)
{
d->contentsPrefixPaths = prefixPaths;
}
bool PackageStructure::installPackage(const QString &package, const QString &packageRoot)
{
//TODO: report *what* failed if something does fail
QDir root(packageRoot);
if (!root.exists()) {
KStandardDirs::makeDir(packageRoot);
if (!root.exists()) {
kWarning() << "Could not create package root directory:" << packageRoot;
return false;
}
}
QFileInfo fileInfo(package);
if (!fileInfo.exists()) {
kWarning() << "No such file:" << package;
return false;
}
QString path;
KTempDir tempdir;
bool archivedPackage = false;
if (fileInfo.isDir()) {
// we have a directory, so let's just install what is in there
path = package;
// make sure we end in a slash!
if (path[path.size() - 1] != '/') {
path.append('/');
}
} else {
KArchive *archive = 0;
KMimeType::Ptr mimetype = KMimeType::findByPath(package);
if (mimetype->is("application/zip")) {
archive = new KZip(package);
} else if (mimetype->is("application/x-compressed-tar") ||
mimetype->is("application/x-tar")|| mimetype->is("application/x-bzip-compressed-tar")) {
archive = new KTar(package);
} else {
kWarning() << "Could not open package file, unsupported archive format:" << package << mimetype->name();
return false;
}
if (!archive->open(QIODevice::ReadOnly)) {
kWarning() << "Could not open package file:" << package;
delete archive;
return false;
}
archivedPackage = true;
path = tempdir.name();
const KArchiveDirectory *source = archive->directory();
source->copyTo(path);
QStringList entries = source->entries();
if (entries.count() == 1) {
const KArchiveEntry *entry = source->entry(entries[0]);
if (entry->isDirectory()) {
path.append(entry->name()).append("/");
}
}
delete archive;
}
QString metadataPath = path + "metadata.desktop";
if (!QFile::exists(metadataPath)) {
kWarning() << "No metadata file in package" << package << metadataPath;
return false;
}
KPluginInfo meta(metadataPath);
QString targetName = meta.pluginName();
if (targetName.isEmpty()) {
kWarning() << "Package plugin name not specified";
return false;
}
// Ensure that package names are safe so package uninstall can't inject
// bad characters into the paths used for removal.
QRegExp validatePluginName("^[\\w-\\.]+$"); // Only allow letters, numbers, underscore and period.
if (!validatePluginName.exactMatch(targetName)) {
kWarning() << "Package plugin name " << targetName << "contains invalid characters";
return false;
}
targetName = packageRoot + '/' + targetName;
if (QFile::exists(targetName)) {
kWarning() << targetName << "already exists";
return false;
}
if (archivedPackage) {
// it's in a temp dir, so just move it over.
#ifndef PLASMA_NO_KIO
KIO::CopyJob *job = KIO::move(KUrl(path), KUrl(targetName), KIO::HideProgressInfo);
const bool ok = job->exec();
const QString errorString = job->errorString();
#else
const bool ok = copyFolder(path, targetName);
removeFolder(path);
const QString errorString("unknown");
#endif
if (!ok) {
kWarning() << "Could not move package to destination:" << targetName << " : " << errorString;
return false;
}
} else {
// it's a directory containing the stuff, so copy the contents rather
// than move them
#ifndef PLASMA_NO_KIO
KIO::CopyJob *job = KIO::copy(KUrl(path), KUrl(targetName), KIO::HideProgressInfo);
const bool ok = job->exec();
const QString errorString = job->errorString();
#else
const bool ok = copyFolder(path, targetName);
const QString errorString("unknown");
#endif
if (!ok) {
kWarning() << "Could not copy package to destination:" << targetName << " : " << errorString;
return false;
}
}
if (archivedPackage) {
// no need to remove the temp dir (which has been successfully moved if it's an archive)
tempdir.setAutoRemove(false);
}
if (!d->servicePrefix.isEmpty()) {
// and now we register it as a service =)
QString metaPath = targetName + "/metadata.desktop";
KDesktopFile df(metaPath);
KConfigGroup cg = df.desktopGroup();
// Q: should not installing it as a service disqualify it?
// Q: 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
//TODO: reduce code duplication with registerPackage below
QString serviceName = d->servicePrefix + meta.pluginName();
QString service = KStandardDirs::locateLocal("services", serviceName + ".desktop");
#ifndef PLASMA_NO_KIO
KIO::FileCopyJob *job = KIO::file_copy(metaPath, service, -1, KIO::HideProgressInfo);
const bool ok = job->exec();
const QString errorString = job->errorString();
#else
const bool ok = QFile::copy(metaPath, service);
const QString errorString("unknown");
#endif
if (ok) {
// the icon in the installed file needs to point to the icon in the
// installation dir!
QString iconPath = targetName + '/' + cg.readEntry("Icon");
QFile icon(iconPath);
if (icon.exists()) {
KDesktopFile df(service);
KConfigGroup cg = df.desktopGroup();
cg.writeEntry("Icon", iconPath);
}
} else {
kWarning() << "Could not register package as service (this is not necessarily fatal):" << serviceName << " : " << errorString;
}
}
return true;
}
bool PackageStructure::uninstallPackage(const QString &packageName, const QString &packageRoot)
{
// We need to remove the package directory and its metadata file.
const QString targetName = packageRoot + '/' + packageName;
if (!QFile::exists(targetName)) {
kWarning() << targetName << "does not exist";
return false;
}
QString serviceName = d->servicePrefix + packageName;
QString service = KStandardDirs::locateLocal("services", serviceName + ".desktop");
kDebug() << "Removing service file " << service;
bool ok = QFile::remove(service);
if (!ok) {
kWarning() << "Unable to remove " << service;
}
#ifndef PLASMA_NO_KIO
KIO::DeleteJob *job = KIO::del(KUrl(targetName));
ok = job->exec();
const QString errorString = job->errorString();
#else
ok = removeFolder(targetName);
const QString errorString("unknown");
#endif
if (!ok) {
kWarning() << "Could not delete package from:" << targetName << " : " << errorString;
return false;
}
return true;
}
QString PackageStructure::defaultPackageRoot() const
{
return d->packageRoot;
}
QString PackageStructure::servicePrefix() const
{
return d->servicePrefix;
}
void PackageStructure::setDefaultPackageRoot(const QString &packageRoot)
{
d->packageRoot = packageRoot;
}
void PackageStructure::setServicePrefix(const QString &servicePrefix)
{
d->servicePrefix = servicePrefix;
}
void PackageStructurePrivate::createPackageMetadata(const QString &path)
{
delete metadata;
QString metadataPath(path + "/metadata.desktop");
if (!QFile::exists(metadataPath)) {
kWarning() << "No metadata file in the package, expected it at:" << metadataPath;
metadataPath.clear();
}
metadata = new KPluginInfo(metadataPath);
}
KPluginInfo PackageStructure::metadata() const
{
if (!d->metadata && !d->path.isEmpty()) {
QFileInfo fileInfo(d->path);
if (fileInfo.isDir()) {
d->createPackageMetadata(d->path);
} else if (fileInfo.exists()) {
KArchive *archive = 0;
KMimeType::Ptr mimeType = KMimeType::findByPath(d->path);
if (mimeType->is("application/zip")) {
archive = new KZip(d->path);
} else if (mimeType->is("application/x-compressed-tar") ||
mimeType->is("application/x-tar")|| mimeType->is("application/x-bzip-compressed-tar")) {
archive = new KTar(d->path);
} else {
kWarning() << "Could not open package file, unsupported archive format:" << d->path << mimeType->name();
}
if (archive && archive->open(QIODevice::ReadOnly)) {
const KArchiveDirectory *source = archive->directory();
KTempDir tempdir;
source->copyTo(tempdir.name());
d->createPackageMetadata(tempdir.name());
} else {
kWarning() << "Could not open package file:" << d->path;
}
delete archive;
}
}
if (!d->metadata) {
d->metadata = new KPluginInfo();
}
return *d->metadata;
}
bool PackageStructure::allowExternalPaths() const
{
return d->externalPaths;
}
void PackageStructure::setAllowExternalPaths(bool allow)
{
d->externalPaths = allow;
}
} // Plasma namespace
#include "packagestructure.moc"
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