324 lines
12 KiB
C++
324 lines
12 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the QtCore module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia. For licensing terms and
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** conditions see http://qt.digia.com/licensing. For further information
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** use the contact form at http://qt.digia.com/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Digia gives you certain additional
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** rights. These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qstandardpaths.h"
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#include <qdir.h>
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#include <qfile.h>
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#include <qhash.h>
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#include <qtextstream.h>
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#include <private/qfilesystemengine_p.h>
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#include <errno.h>
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#include <stdlib.h>
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#ifndef QT_BOOTSTRAPPED
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#include <qcoreapplication.h>
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#endif
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#ifndef QT_NO_STANDARDPATHS
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QT_BEGIN_NAMESPACE
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static void appendOrganizationAndApp(QString &path)
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{
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#ifndef QT_BOOTSTRAPPED
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const QString org = QCoreApplication::organizationName();
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if (!org.isEmpty())
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path += QLatin1Char('/') + org;
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const QString appName = QCoreApplication::applicationName();
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if (!appName.isEmpty())
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path += QLatin1Char('/') + appName;
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#else
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Q_UNUSED(path);
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#endif
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}
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QString QStandardPaths::writableLocation(StandardLocation type)
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{
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switch (type) {
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case HomeLocation:
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return QDir::homePath();
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case TempLocation:
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return QDir::tempPath();
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case CacheLocation:
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case GenericCacheLocation:
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{
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// http://standards.freedesktop.org/basedir-spec/basedir-spec-0.6.html
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QString xdgCacheHome = QFile::decodeName(qgetenv("XDG_CACHE_HOME"));
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if (isTestModeEnabled())
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xdgCacheHome = QDir::homePath() + QLatin1String("/.qttest/cache");
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if (xdgCacheHome.isEmpty())
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xdgCacheHome = QDir::homePath() + QLatin1String("/.cache");
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if (type == QStandardPaths::CacheLocation)
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appendOrganizationAndApp(xdgCacheHome);
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return xdgCacheHome;
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}
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case DataLocation:
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case GenericDataLocation:
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{
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QString xdgDataHome = QFile::decodeName(qgetenv("XDG_DATA_HOME"));
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if (isTestModeEnabled())
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xdgDataHome = QDir::homePath() + QLatin1String("/.qttest/share");
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if (xdgDataHome.isEmpty())
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xdgDataHome = QDir::homePath() + QLatin1String("/.local/share");
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if (type == QStandardPaths::DataLocation)
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appendOrganizationAndApp(xdgDataHome);
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return xdgDataHome;
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}
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case ConfigLocation:
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case GenericConfigLocation:
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{
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// http://standards.freedesktop.org/basedir-spec/latest/
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QString xdgConfigHome = QFile::decodeName(qgetenv("XDG_CONFIG_HOME"));
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if (isTestModeEnabled())
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xdgConfigHome = QDir::homePath() + QLatin1String("/.qttest/config");
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if (xdgConfigHome.isEmpty())
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xdgConfigHome = QDir::homePath() + QLatin1String("/.config");
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return xdgConfigHome;
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}
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case RuntimeLocation:
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{
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const uid_t myUid = geteuid();
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// http://standards.freedesktop.org/basedir-spec/latest/
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QString xdgRuntimeDir = QFile::decodeName(qgetenv("XDG_RUNTIME_DIR"));
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if (xdgRuntimeDir.isEmpty()) {
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const QString userName = QFileSystemEngine::resolveUserName(myUid);
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xdgRuntimeDir = QDir::tempPath() + QLatin1String("/runtime-") + userName;
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QDir dir(xdgRuntimeDir);
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if (!dir.exists()) {
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if (!QDir().mkdir(xdgRuntimeDir)) {
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qWarning("QStandardPaths: error creating runtime directory %s: %s", qPrintable(xdgRuntimeDir), qPrintable(qt_error_string(errno)));
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return QString();
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}
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}
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qWarning("QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to '%s'", qPrintable(xdgRuntimeDir));
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}
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// "The directory MUST be owned by the user"
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QFileInfo fileInfo(xdgRuntimeDir);
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if (fileInfo.ownerId() != myUid) {
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qWarning("QStandardPaths: wrong ownership on runtime directory %s, %d instead of %d", qPrintable(xdgRuntimeDir),
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fileInfo.ownerId(), myUid);
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return QString();
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}
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// "and he MUST be the only one having read and write access to it. Its Unix access mode MUST be 0700."
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QFile file(xdgRuntimeDir);
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const QFile::Permissions wantedPerms = QFile::ReadUser | QFile::WriteUser | QFile::ExeUser;
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if (file.permissions() != wantedPerms && !file.setPermissions(wantedPerms)) {
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qWarning("QStandardPaths: wrong permissions on runtime directory %s", qPrintable(xdgRuntimeDir));
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return QString();
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}
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return xdgRuntimeDir;
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}
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default:
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break;
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}
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#ifndef QT_BOOTSTRAPPED
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// http://www.freedesktop.org/wiki/Software/xdg-user-dirs
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QString xdgConfigHome = QFile::decodeName(qgetenv("XDG_CONFIG_HOME"));
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if (xdgConfigHome.isEmpty())
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xdgConfigHome = QDir::homePath() + QLatin1String("/.config");
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QFile file(xdgConfigHome + QLatin1String("/user-dirs.dirs"));
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if (!isTestModeEnabled() && file.open(QIODevice::ReadOnly)) {
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QHash<QString, QString> lines;
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QTextStream stream(&file);
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// Only look for lines like: XDG_DESKTOP_DIR="$HOME/Desktop"
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QRegExp exp(QLatin1String("^XDG_(.*)_DIR=(.*)$"));
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while (!stream.atEnd()) {
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const QString &line = stream.readLine();
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if (exp.indexIn(line) != -1) {
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const QStringList lst = exp.capturedTexts();
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const QString key = lst.at(1);
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QString value = lst.at(2);
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if (value.length() > 2
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&& value.startsWith(QLatin1Char('\"'))
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&& value.endsWith(QLatin1Char('\"')))
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value = value.mid(1, value.length() - 2);
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// Store the key and value: "DESKTOP", "$HOME/Desktop"
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lines[key] = value;
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}
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}
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QString key;
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switch (type) {
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case DesktopLocation:
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key = QLatin1String("DESKTOP");
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break;
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case DocumentsLocation:
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key = QLatin1String("DOCUMENTS");
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break;
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case PicturesLocation:
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key = QLatin1String("PICTURES");
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break;
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case MusicLocation:
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key = QLatin1String("MUSIC");
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break;
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case MoviesLocation:
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key = QLatin1String("VIDEOS");
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break;
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case DownloadLocation:
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key = QLatin1String("DOWNLOAD");
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break;
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default:
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break;
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}
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if (!key.isEmpty()) {
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QString value = lines.value(key);
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if (!value.isEmpty()) {
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// value can start with $HOME
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if (value.startsWith(QLatin1String("$HOME")))
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value = QDir::homePath() + value.mid(5);
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if (value.length() > 1 && value.endsWith(QLatin1Char('/')))
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value.chop(1);
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return value;
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}
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}
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}
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#endif
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QString path;
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switch (type) {
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case DesktopLocation:
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path = QDir::homePath() + QLatin1String("/Desktop");
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break;
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case DocumentsLocation:
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path = QDir::homePath() + QLatin1String("/Documents");
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break;
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case PicturesLocation:
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path = QDir::homePath() + QLatin1String("/Pictures");
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break;
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case FontsLocation:
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path = QDir::homePath() + QLatin1String("/.fonts");
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break;
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case MusicLocation:
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path = QDir::homePath() + QLatin1String("/Music");
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break;
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case MoviesLocation:
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path = QDir::homePath() + QLatin1String("/Videos");
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break;
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case DownloadLocation:
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path = QDir::homePath() + QLatin1String("/Downloads");
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break;
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case ApplicationsLocation:
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path = writableLocation(GenericDataLocation) + QLatin1String("/applications");
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break;
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default:
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break;
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}
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return path;
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}
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static QStringList xdgDataDirs()
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{
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QStringList dirs;
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// http://standards.freedesktop.org/basedir-spec/latest/
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QString xdgDataDirsEnv = QFile::decodeName(qgetenv("XDG_DATA_DIRS"));
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if (xdgDataDirsEnv.isEmpty()) {
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dirs.append(QString::fromLatin1("/usr/local/share"));
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dirs.append(QString::fromLatin1("/usr/share"));
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} else {
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dirs = xdgDataDirsEnv.split(QLatin1Char(':'), QString::SkipEmptyParts);
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// Normalize paths, skip relative paths
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QMutableListIterator<QString> it(dirs);
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while (it.hasNext()) {
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const QString dir = it.next();
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if (!dir.startsWith(QLatin1Char('/')))
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it.remove();
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else
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it.setValue(QDir::cleanPath(dir));
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}
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// Remove duplicates from the list, there's no use for duplicated
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// paths in XDG_DATA_DIRS - if it's not found in the given
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// directory the first time, it won't be there the second time.
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// Plus duplicate paths causes problems for example for mimetypes,
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// where duplicate paths here lead to duplicated mime types returned
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// for a file, eg "text/plain,text/plain" instead of "text/plain"
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dirs.removeDuplicates();
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}
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return dirs;
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}
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QStringList QStandardPaths::standardLocations(StandardLocation type)
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{
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QStringList dirs;
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switch (type) {
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case ConfigLocation:
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case GenericConfigLocation:
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{
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// http://standards.freedesktop.org/basedir-spec/latest/
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const QString xdgConfigDirs = QFile::decodeName(qgetenv("XDG_CONFIG_DIRS"));
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if (xdgConfigDirs.isEmpty())
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dirs.append(QString::fromLatin1("/etc/xdg"));
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else
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dirs = xdgConfigDirs.split(QLatin1Char(':'));
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}
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break;
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case GenericDataLocation:
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dirs = xdgDataDirs();
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break;
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case ApplicationsLocation:
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dirs = xdgDataDirs();
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for (int i = 0; i < dirs.count(); ++i)
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dirs[i].append(QLatin1String("/applications"));
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break;
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case DataLocation:
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dirs = xdgDataDirs();
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for (int i = 0; i < dirs.count(); ++i)
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appendOrganizationAndApp(dirs[i]);
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break;
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default:
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break;
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}
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const QString localDir = writableLocation(type);
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dirs.prepend(localDir);
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return dirs;
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}
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QT_END_NAMESPACE
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#endif // QT_NO_STANDARDPATHS
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