944 lines
28 KiB
C++
944 lines
28 KiB
C++
/******************************************************************************
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* Copyright 2007 by Aaron Seigo <aseigo@kde.org> *
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* Copyright 2010 by Marco Martin <notmart@gmail.com> *
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* Copyright 2010 by Kevin Ottens <ervin@kde.org> *
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* Copyright 2009 by Rob Scheepmaker *
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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* This library is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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* Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public License *
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* along with this library; see the file COPYING.LIB. If not, write to *
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, *
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* Boston, MA 02110-1301, USA. *
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*******************************************************************************/
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#include "package.h"
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#include <qtemporarydir.h>
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#include <karchive.h>
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#include <QDebug>
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#include <kdesktopfile.h>
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#include <kservicetypetrader.h>
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#include <ktar.h>
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#include <kzip.h>
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#include "config-plasma.h"
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#include <qstandardpaths.h>
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#include <qmimedatabase.h>
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#include "packagestructure.h"
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#include "pluginloader.h"
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#include "private/package_p.h"
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#include "private/packages_p.h"
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#include "private/packagejob_p.h"
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namespace Plasma
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{
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Package::Package(PackageStructure *structure)
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: d(new PackagePrivate())
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{
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d->structure = structure;
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if (d->structure) {
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d->structure.data()->initPackage(this);
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}
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}
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Package::Package(const Package &other)
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: d(other.d)
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{
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}
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Package::~Package()
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{
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}
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Package &Package::operator=(const Package &rhs)
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{
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if (&rhs != this) {
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d = rhs.d;
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}
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return *this;
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}
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bool Package::hasValidStructure() const
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{
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return d->structure;
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}
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bool Package::isValid() const
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{
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if (!d->structure) {
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return false;
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}
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//Minimal packages with no metadata *are* supposed to be possible
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//so if !metadata().isValid() go ahead
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if (metadata().isValid() && metadata().isHidden()) {
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return false;
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}
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if (d->checkedValid) {
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return d->valid;
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}
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d->valid = true;
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//search for the file in all prefixes and in all possible paths for each prefix
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//even if it's a big nested loop, usually there is one prefix and one location
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//so shouldn't cause too much disk access
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QHashIterator<QByteArray, ContentStructure> it(d->contents);
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const QString rootPath = d->tempRoot.isEmpty() ? d->path : d->tempRoot;
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while (it.hasNext()) {
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it.next();
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if (!it.value().required) {
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continue;
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}
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bool failed = true;
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foreach (const QString &path, it.value().paths) {
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foreach (const QString &prefix, d->contentsPrefixPaths) {
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if (QFile::exists(rootPath + prefix + path)) {
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failed = false;
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break;
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}
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}
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if (!failed) {
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break;
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}
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}
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if (failed) {
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//qWarning() << "Could not find required" << (it.value().directory ? "directory" : "file") << it.key() << "for package" << path();
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d->valid = false;
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break;
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}
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}
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return d->valid;
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}
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QString Package::name(const char *key) const
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{
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#ifndef PLASMA_NO_PACKAGE_EXTRADATA
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QHash<QByteArray, ContentStructure>::const_iterator it = d->contents.constFind(key);
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if (it == d->contents.constEnd()) {
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return QString();
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}
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return it.value().name;
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#else
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Q_UNUSED(key);
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return QString();
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#endif
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}
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bool Package::isRequired(const char *key) const
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{
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QHash<QByteArray, ContentStructure>::const_iterator it = d->contents.constFind(key);
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if (it == d->contents.constEnd()) {
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return false;
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}
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return it.value().required;
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}
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QStringList Package::mimeTypes(const char *key) const
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{
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#ifndef PLASMA_NO_PACKAGE_EXTRADATA
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QHash<QByteArray, ContentStructure>::const_iterator it = d->contents.constFind(key);
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if (it == d->contents.constEnd()) {
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return QStringList();
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}
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if (it.value().mimeTypes.isEmpty()) {
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return d->mimeTypes;
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}
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return it.value().mimeTypes;
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#else
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return QStringList();
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#endif
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}
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QString Package::defaultPackageRoot() const
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{
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return d->defaultPackageRoot;
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}
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void Package::setDefaultPackageRoot(const QString &packageRoot)
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{
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d.detach();
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d->defaultPackageRoot = packageRoot;
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if (!d->defaultPackageRoot.isEmpty() && !d->defaultPackageRoot.endsWith('/')) {
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d->defaultPackageRoot.append('/');
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}
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}
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void Package::setFallbackPackage(const Plasma::Package &package)
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{
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if ((d->fallbackPackage && d->fallbackPackage->path() == package.path() && d->fallbackPackage->metadata() == package.metadata()) ||
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//can't be fallback of itself
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(package.path() == path() && package.metadata() == metadata()) ||
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d->hasCycle(package)) {
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return;
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}
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d->fallbackPackage = new Package(package);
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}
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Plasma::Package Package::fallbackPackage() const
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{
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if (d->fallbackPackage) {
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return (*d->fallbackPackage);
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} else {
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return Package();
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}
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}
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QString Package::servicePrefix() const
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{
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return d->servicePrefix;
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}
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void Package::setServicePrefix(const QString &servicePrefix)
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{
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d.detach();
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d->servicePrefix = servicePrefix;
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}
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bool Package::allowExternalPaths() const
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{
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return d->externalPaths;
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}
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void Package::setAllowExternalPaths(bool allow)
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{
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d.detach();
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d->externalPaths = allow;
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}
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KPluginInfo Package::metadata() const
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{
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//qDebug() << "metadata: " << d->path << filePath("metadata");
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if (!d->metadata && !d->path.isEmpty()) {
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const QString metadataPath = filePath("metadata");
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if (!metadataPath.isEmpty()) {
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d->createPackageMetadata(metadataPath);
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} else {
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// d->path might still be a file, if its path has a trailing /,
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// the fileInfo lookup will fail, so remove it.
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QString p = d->path;
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if (p.endsWith("/")) {
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p.chop(1);
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}
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QFileInfo fileInfo(p);
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if (fileInfo.isDir()) {
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d->createPackageMetadata(d->path);
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} else if (fileInfo.exists()) {
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d->path = p;
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d->tempRoot = d->unpack(p);
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}
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}
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}
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if (!d->metadata) {
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d->metadata = new KPluginInfo();
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}
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return *d->metadata;
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}
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QString PackagePrivate::unpack(const QString &filePath)
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{
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KArchive *archive = 0;
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QMimeDatabase db;
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QMimeType mimeType = db.mimeTypeForFile(filePath);
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if (mimeType.inherits("application/zip")) {
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archive = new KZip(filePath);
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} else if (mimeType.inherits("application/x-compressed-tar") || mimeType.inherits("application/x-gzip") ||
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mimeType.inherits("application/x-tar") || mimeType.inherits("application/x-bzip-compressed-tar") ||
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mimeType.inherits("application/x-xz") || mimeType.inherits("application/x-lzma")) {
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archive = new KTar(filePath);
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} else {
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//qWarning() << "Could not open package file, unsupported archive format:" << filePath << mimeType.name();
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}
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QString tempRoot;
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if (archive && archive->open(QIODevice::ReadOnly)) {
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const KArchiveDirectory *source = archive->directory();
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QTemporaryDir tempdir;
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tempdir.setAutoRemove(false);
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tempRoot = tempdir.path() + '/';
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source->copyTo(tempRoot);
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if (!QFile::exists(tempdir.path() + "/metadata.desktop")) {
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// search metadata.desktop, the zip file might have the package contents in a subdirectory
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QDir unpackedPath(tempdir.path());
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const QStringList &entries = unpackedPath.entryList(QDir::Dirs);
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foreach (const QString &pack, entries) {
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if ((pack != "." && pack != "..") &&
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(QFile::exists(unpackedPath.absolutePath() + '/' + pack + "/metadata.desktop"))) {
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tempRoot = unpackedPath.absolutePath() + '/' + pack + '/';
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}
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}
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}
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createPackageMetadata(tempRoot);
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} else {
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//qWarning() << "Could not open package file:" << path;
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}
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delete archive;
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return tempRoot;
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}
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QString Package::filePath(const char *fileType, const QString &filename) const
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{
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if (!d->valid) {
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//qDebug() << "package is not valid";
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return d->fallbackFilePath(fileType, filename);
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}
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const QString discoveryKey(fileType + filename);
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if (d->discoveries.contains(discoveryKey)) {
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//qDebug() << "looking for" << discoveryKey << d->discoveries.value(discoveryKey);
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return d->discoveries[discoveryKey];
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}
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QStringList paths;
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if (qstrlen(fileType) != 0) {
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//qDebug()<<d->contents.keys();
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if (!d->contents.contains(fileType)) {
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//qDebug() << "package does not contain" << fileType << filename;
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return d->fallbackFilePath(fileType, filename);
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}
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paths = d->contents[fileType].paths;
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if (paths.isEmpty()) {
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//qDebug() << "no matching path came of it, while looking for" << fileType << filename;
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d->discoveries.insert(discoveryKey, QString());
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return d->fallbackFilePath(fileType, filename);
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}
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} else {
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//when filetype is empty paths is always empty, so try with an empty string
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paths << QString();
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}
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//Nested loop, but in the medium case resolves to just one iteration
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//qDebug() << "prefixes:" << prefixes.count() << prefixes;
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foreach (const QString &contentsPrefix, d->contentsPrefixPaths) {
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const QString prefix(d->path + contentsPrefix);
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foreach (const QString &path, paths) {
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QString file = prefix + path;
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if (!filename.isEmpty()) {
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file.append("/").append(filename);
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}
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//qDebug() << "testing" << file << QFile::exists("/bin/ls") << QFile::exists(file);
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if (QFile::exists(file)) {
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if (d->externalPaths) {
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//qDebug() << "found" << file;
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d->discoveries.insert(discoveryKey, file);
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return file;
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}
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// ensure that we don't return files outside of our base path
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// due to symlink or ../ games
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QDir dir(file);
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QString canonicalized = dir.canonicalPath() + QDir::separator();
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//qDebug() << "testing that" << canonicalized << "is in" << d->path;
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if (canonicalized.startsWith(d->path)) {
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//qDebug() << "found" << file;
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d->discoveries.insert(discoveryKey, file);
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return file;
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}
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}
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}
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}
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//qDebug() << fileType << filename << "does not exist in" << prefixes << "at root" << d->path;
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return d->fallbackFilePath(fileType, filename);
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}
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QStringList Package::entryList(const char *key) const
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{
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if (!d->valid) {
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return QStringList();
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}
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QHash<QByteArray, ContentStructure>::const_iterator it = d->contents.constFind(key);
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if (it == d->contents.constEnd()) {
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//qDebug() << "couldn't find" << key;
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return QStringList();
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}
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//qDebug() << "going to list" << key;
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QStringList list;
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foreach (const QString &prefix, d->contentsPrefixPaths) {
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//qDebug() << " looking in" << prefix;
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foreach (const QString &path, it.value().paths) {
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//qDebug() << " looking in" << path;
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if (it.value().directory) {
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//qDebug() << "it's a directory, so trying out" << d->path + prefix + path;
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QDir dir(d->path + prefix + path);
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if (d->externalPaths) {
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list += dir.entryList(QDir::Files | QDir::Readable);
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} else {
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// ensure that we don't return files outside of our base path
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// due to symlink or ../ games
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QString canonicalized = dir.canonicalPath();
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if (canonicalized.startsWith(d->path)) {
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list += dir.entryList(QDir::Files | QDir::Readable);
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}
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}
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} else {
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const QString fullPath = d->path + prefix + path;
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//qDebug() << "it's a file at" << fullPath << QFile::exists(fullPath);
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if (!QFile::exists(fullPath)) {
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continue;
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}
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if (d->externalPaths) {
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list += fullPath;
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} else {
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QDir dir(fullPath);
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QString canonicalized = dir.canonicalPath() + QDir::separator();
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//qDebug() << "testing that" << canonicalized << "is in" << d->path;
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if (canonicalized.startsWith(d->path)) {
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list += fullPath;
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}
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}
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}
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}
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}
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return list;
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}
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void Package::setPath(const QString &path)
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{
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// if the path is already what we have, don't bother
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if (path == d->path) {
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return;
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}
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// our dptr is shared, and it is almost certainly going to change.
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// hold onto the old pointer just in case it does not, however!
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QExplicitlySharedDataPointer<PackagePrivate> oldD(d);
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d.detach();
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// without structure we're doomed
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if (!d->structure) {
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d->path.clear();
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d->discoveries.clear();
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d->valid = false;
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d->checkedValid = true;
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return;
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}
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// empty path => nothing to do
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if (path.isEmpty()) {
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d->path.clear();
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d->discoveries.clear();
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d->valid = false;
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d->structure.data()->pathChanged(this);
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return;
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}
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// now we look for all possible paths, including resolving
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// relative paths against the system search paths
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QStringList paths;
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if (QDir::isRelativePath(path)) {
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QString p;
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if (d->defaultPackageRoot.isEmpty()) {
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p = path % "/";
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} else {
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p = d->defaultPackageRoot % path % "/";
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}
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if (QDir::isRelativePath(p)) {
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paths << QStandardPaths::locateAll(QStandardPaths::GenericDataLocation, p, QStandardPaths::LocateDirectory);
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} else {
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const QDir dir(p);
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if (QFile::exists(dir.canonicalPath())) {
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paths << p;
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}
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}
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//qDebug() << "paths:" << p << paths << d->defaultPackageRoot;
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} else {
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const QDir dir(path);
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if (QFile::exists(dir.canonicalPath())) {
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paths << path;
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}
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}
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QFileInfo fileInfo(path);
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if (fileInfo.isFile() && d->tempRoot.isEmpty()) {
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d->path = path;
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d->tempRoot = d->unpack(path);
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}
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// now we search each path found, caching our previous path to know if
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// anything actually really changed
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const QString previousPath = d->path;
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foreach (const QString &p, paths) {
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d->checkedValid = false;
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d->path = p;
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if (!d->path.endsWith('/')) {
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d->path.append('/');
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}
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// we need to tell the structure we're changing paths ...
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d->structure.data()->pathChanged(this);
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// ... and then testing the results for validity
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if (isValid()) {
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break;
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}
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}
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|
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// if nothing did change, then we go back to the old dptr
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if (d->path == previousPath) {
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d = oldD;
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return;
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}
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// .. but something did change, so we get rid of our discovery cache
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d->discoveries.clear();
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delete d->metadata;
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d->metadata = 0;
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QString fallback;
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// uh-oh, but we didn't end up with anything valid, so we sadly reset ourselves
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// to futility.
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if (!d->valid) {
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d->path.clear();
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d->structure.data()->pathChanged(this);
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}
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}
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const QString Package::path() const
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{
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return d->path;
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}
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|
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QStringList Package::contentsPrefixPaths() const
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{
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return d->contentsPrefixPaths;
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}
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|
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void Package::setContentsPrefixPaths(const QStringList &prefixPaths)
|
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{
|
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d.detach();
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d->contentsPrefixPaths = prefixPaths;
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if (d->contentsPrefixPaths.isEmpty()) {
|
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d->contentsPrefixPaths << QString();
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} else {
|
|
// the code assumes that the prefixes have a trailing slash
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|
// so let's make that true here
|
|
QMutableStringListIterator it(d->contentsPrefixPaths);
|
|
while (it.hasNext()) {
|
|
it.next();
|
|
|
|
if (!it.value().endsWith('/')) {
|
|
it.setValue(it.value() % '/');
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
QString Package::contentsHash() const
|
|
{
|
|
if (!d->valid) {
|
|
qWarning() << "can not create hash due to Package being invalid";
|
|
return QString();
|
|
}
|
|
|
|
QCryptographicHash hash(QCryptographicHash::Sha1);
|
|
QString metadataPath = d->path + "metadata.desktop";
|
|
if (QFile::exists(metadataPath)) {
|
|
QFile f(metadataPath);
|
|
if (f.open(QIODevice::ReadOnly)) {
|
|
while (!f.atEnd()) {
|
|
hash.addData(f.read(1024));
|
|
}
|
|
} else {
|
|
qWarning() << "could not add" << f.fileName() << "to the hash; file could not be opened for reading.";
|
|
}
|
|
} else {
|
|
qWarning() << "no metadata at" << metadataPath;
|
|
}
|
|
|
|
foreach (QString prefix, d->contentsPrefixPaths) {
|
|
const QString basePath = d->path + prefix;
|
|
QDir dir(basePath);
|
|
|
|
if (!dir.exists()) {
|
|
return QString();
|
|
}
|
|
|
|
d->updateHash(basePath, QString(), dir, hash);
|
|
}
|
|
|
|
return hash.result().toHex();
|
|
}
|
|
|
|
void Package::addDirectoryDefinition(const char *key, const QString &path, const QString &name)
|
|
{
|
|
ContentStructure s;
|
|
|
|
if (d->contents.contains(key)) {
|
|
s = d->contents[key];
|
|
if (s.paths.contains(path) && s.directory == true
|
|
#ifndef PLASMA_NO_PACKAGE_EXTRADATA
|
|
&& s.name == name
|
|
#endif
|
|
) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
d.detach();
|
|
|
|
#ifndef PLASMA_NO_PACKAGE_EXTRADATA
|
|
if (!name.isEmpty()) {
|
|
s.name = name;
|
|
}
|
|
#else
|
|
Q_UNUSED(name)
|
|
#endif
|
|
|
|
s.paths.append(path);
|
|
s.directory = true;
|
|
|
|
d->contents[key] = s;
|
|
}
|
|
|
|
void Package::addFileDefinition(const char *key, const QString &path, const QString &name)
|
|
{
|
|
ContentStructure s;
|
|
|
|
if (d->contents.contains(key)) {
|
|
s = d->contents[key];
|
|
if (s.paths.contains(path) && s.directory == false
|
|
#ifndef PLASMA_NO_PACKAGE_EXTRADATA
|
|
&& s.name == name
|
|
#endif
|
|
) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
d.detach();
|
|
#ifndef PLASMA_NO_PACKAGE_EXTRADATA
|
|
if (!name.isEmpty()) {
|
|
s.name = name;
|
|
}
|
|
#else
|
|
Q_UNUSED(name)
|
|
#endif
|
|
|
|
s.paths.append(path);
|
|
s.directory = false;
|
|
|
|
d->contents[key] = s;
|
|
}
|
|
|
|
void Package::removeDefinition(const char *key)
|
|
{
|
|
if (d->contents.contains(key)) {
|
|
d.detach();
|
|
d->contents.remove(key);
|
|
}
|
|
}
|
|
|
|
void Package::setRequired(const char *key, bool required)
|
|
{
|
|
QHash<QByteArray, ContentStructure>::iterator it = d->contents.find(key);
|
|
if (it == d->contents.end()) {
|
|
return;
|
|
}
|
|
|
|
d.detach();
|
|
// have to find the item again after detaching: d->contents is a different object now
|
|
it = d->contents.find(key);
|
|
it.value().required = required;
|
|
}
|
|
|
|
void Package::setDefaultMimeTypes(QStringList mimeTypes)
|
|
{
|
|
#ifndef PLASMA_NO_PACKAGE_EXTRADATA
|
|
d.detach();
|
|
d->mimeTypes = mimeTypes;
|
|
#endif
|
|
}
|
|
|
|
void Package::setMimeTypes(const char *key, QStringList mimeTypes)
|
|
{
|
|
#ifndef PLASMA_NO_PACKAGE_EXTRADATA
|
|
QHash<QByteArray, ContentStructure>::iterator it = d->contents.find(key);
|
|
if (it == d->contents.end()) {
|
|
return;
|
|
}
|
|
|
|
d.detach();
|
|
// have to find the item again after detaching: d->contents is a different object now
|
|
it = d->contents.find(key);
|
|
it.value().mimeTypes = mimeTypes;
|
|
#endif
|
|
}
|
|
|
|
QList<const char *> Package::directories() const
|
|
{
|
|
QList<const char *> dirs;
|
|
QHash<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 *> Package::requiredDirectories() const
|
|
{
|
|
QList<const char *> dirs;
|
|
QHash<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 *> Package::files() const
|
|
{
|
|
QList<const char *> files;
|
|
QHash<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 *> Package::requiredFiles() const
|
|
{
|
|
QList<const char *> files;
|
|
QHash<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;
|
|
}
|
|
|
|
KJob *Package::install(const QString &sourcePackage, const QString &packageRoot)
|
|
{
|
|
const QString src = sourcePackage;
|
|
const QString dest = packageRoot.isEmpty() ? defaultPackageRoot() : packageRoot;
|
|
//qDebug() << "Source: " << src;
|
|
//qDebug() << "PackageRoot: " << dest;
|
|
KJob *j = d->structure.data()->install(this, src, dest);
|
|
//connect(j, SIGNAL(finished(bool)), SLOT(installFinished(bool)));
|
|
return j;
|
|
}
|
|
|
|
KJob *Package::uninstall(const QString &packageName, const QString &packageRoot)
|
|
{
|
|
d->createPackageMetadata(packageRoot + packageName);
|
|
return d->structure.data()->uninstall(this, packageRoot);
|
|
}
|
|
|
|
PackagePrivate::PackagePrivate()
|
|
: QSharedData(),
|
|
servicePrefix("plasma-applet-"),
|
|
fallbackPackage(0),
|
|
metadata(0),
|
|
externalPaths(false),
|
|
valid(false),
|
|
checkedValid(false)
|
|
{
|
|
contentsPrefixPaths << "contents/";
|
|
}
|
|
|
|
PackagePrivate::PackagePrivate(const PackagePrivate &other)
|
|
: QSharedData()
|
|
{
|
|
*this = other;
|
|
metadata = 0;
|
|
}
|
|
|
|
PackagePrivate::~PackagePrivate()
|
|
{
|
|
if (!tempRoot.isEmpty()) {
|
|
QDir dir(tempRoot);
|
|
dir.removeRecursively();
|
|
}
|
|
delete metadata;
|
|
delete fallbackPackage;
|
|
}
|
|
|
|
PackagePrivate &PackagePrivate::operator=(const PackagePrivate &rhs)
|
|
{
|
|
if (&rhs == this) {
|
|
return *this;
|
|
}
|
|
|
|
structure = rhs.structure;
|
|
if (rhs.fallbackPackage) {
|
|
fallbackPackage = new Package(*rhs.fallbackPackage);
|
|
} else {
|
|
fallbackPackage = 0;
|
|
}
|
|
path = rhs.path;
|
|
contentsPrefixPaths = rhs.contentsPrefixPaths;
|
|
servicePrefix = rhs.servicePrefix;
|
|
contents = rhs.contents;
|
|
#ifndef PLASMA_NO_PACKAGE_EXTRADATA
|
|
mimeTypes = rhs.mimeTypes;
|
|
#endif
|
|
defaultPackageRoot = rhs.defaultPackageRoot;
|
|
servicePrefix = rhs.servicePrefix;
|
|
metadata = 0;
|
|
externalPaths = rhs.externalPaths;
|
|
valid = rhs.valid;
|
|
return *this;
|
|
}
|
|
|
|
void PackagePrivate::updateHash(const QString &basePath, const QString &subPath, const QDir &dir, QCryptographicHash &hash)
|
|
{
|
|
// hash is calculated as a function of:
|
|
// * files ordered alphabetically by name, with each file's:
|
|
// * path relative to the content root
|
|
// * file data
|
|
// * directories ordered alphabetically by name, with each dir's:
|
|
// * path relative to the content root
|
|
// * file listing (recursing)
|
|
// symlinks (in both the file and dir case) are handled by adding
|
|
// the name of the symlink itself and the abs path of what it points to
|
|
|
|
const QDir::SortFlags sorting = QDir::Name | QDir::IgnoreCase;
|
|
const QDir::Filters filters = QDir::Hidden | QDir::System | QDir::NoDotAndDotDot;
|
|
foreach (const QString &file, dir.entryList(QDir::Files | filters, sorting)) {
|
|
if (!subPath.isEmpty()) {
|
|
hash.addData(subPath.toUtf8());
|
|
}
|
|
|
|
hash.addData(file.toUtf8());
|
|
|
|
QFileInfo info(dir.path() + '/' + file);
|
|
if (info.isSymLink()) {
|
|
hash.addData(info.symLinkTarget().toUtf8());
|
|
} else {
|
|
QFile f(info.filePath());
|
|
if (f.open(QIODevice::ReadOnly)) {
|
|
while (!f.atEnd()) {
|
|
hash.addData(f.read(1024));
|
|
}
|
|
} else {
|
|
qWarning() << "could not add" << f.fileName() << "to the hash; file could not be opened for reading. "
|
|
<< "permissions fail?" << info.permissions() << info.isFile();
|
|
}
|
|
}
|
|
}
|
|
|
|
foreach (const QString &subDirPath, dir.entryList(QDir::Dirs | filters, sorting)) {
|
|
const QString relativePath = subPath + subDirPath + '/';
|
|
hash.addData(relativePath.toUtf8());
|
|
|
|
QDir subDir(dir.path());
|
|
subDir.cd(subDirPath);
|
|
|
|
if (subDir.path() != subDir.canonicalPath()) {
|
|
hash.addData(subDir.canonicalPath().toUtf8());
|
|
} else {
|
|
updateHash(basePath, relativePath, subDir, hash);
|
|
}
|
|
}
|
|
}
|
|
|
|
void PackagePrivate::createPackageMetadata(const QString &path)
|
|
{
|
|
delete metadata;
|
|
QString metadataPath(path + "/metadata.desktop");
|
|
if (!QFile::exists(metadataPath)) {
|
|
qWarning() << "No metadata file in the package, expected it at:" << metadataPath;
|
|
metadataPath.clear();
|
|
}
|
|
|
|
metadata = new KPluginInfo(metadataPath);
|
|
}
|
|
|
|
QString PackagePrivate::fallbackFilePath(const char *key, const QString &filename) const
|
|
{
|
|
//don't fallback if the package isn't valid and never fallback the metadata file
|
|
if (qstrcmp(key, "metadata") != 0 && fallbackPackage && fallbackPackage->isValid()) {
|
|
return fallbackPackage->filePath(key, filename);
|
|
} else {
|
|
return QString();
|
|
}
|
|
}
|
|
|
|
bool PackagePrivate::hasCycle(const Plasma::Package &package)
|
|
{
|
|
if (!package.d->fallbackPackage) {
|
|
return false;
|
|
}
|
|
|
|
//This is the Floyd cycle detection algorithm
|
|
//http://en.wikipedia.org/wiki/Cycle_detection#Tortoise_and_hare
|
|
Plasma::Package *slowPackage = const_cast<Plasma::Package *>(&package);
|
|
Plasma::Package *fastPackage = const_cast<Plasma::Package *>(&package);
|
|
|
|
while (fastPackage && fastPackage->d->fallbackPackage) {
|
|
//consider two packages the same if they have the same metadata
|
|
if ((fastPackage->d->fallbackPackage->metadata().isValid() && fastPackage->d->fallbackPackage->metadata() == slowPackage->metadata()) ||
|
|
(fastPackage->d->fallbackPackage->d->fallbackPackage && fastPackage->d->fallbackPackage->d->fallbackPackage->metadata().isValid() && fastPackage->d->fallbackPackage->d->fallbackPackage->metadata() == slowPackage->metadata())) {
|
|
qWarning() << "Warning: the fallback chain of " << package.metadata().pluginName() << "contains a cyclical dependency.";
|
|
return true;
|
|
}
|
|
fastPackage = fastPackage->d->fallbackPackage->d->fallbackPackage;
|
|
slowPackage = slowPackage->d->fallbackPackage;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
} // Namespace
|