BrowserShared.cpp

/*
 *  Copyright (C) 2020 KeePassXC Team <team@keepassxc.org>
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "BrowserShared.h"

#include "config-keepassx.h"

#include <QStandardPaths>
#include <QDir>
#if defined(KEEPASSXC_DIST_SNAP)
#include <QProcessEnvironment>
#endif

namespace BrowserShared
{
    QString localServerPath()
    {
        const auto serverName = QStringLiteral("/org.keepassxc.KeePassXC.BrowserServer");
#if defined(KEEPASSXC_DIST_SNAP)
        return QProcessEnvironment::systemEnvironment().value("SNAP_USER_COMMON") + serverName;
#elif defined(KEEPASSXC_DIST_FLATPAK)
        return QStandardPaths::writableLocation(QStandardPaths::RuntimeLocation) + "/app/" + "org.keepassxc.KeePassXC"
               + serverName;
#elif defined(Q_OS_UNIX) && !defined(Q_OS_MACOS)
        // Use XDG_RUNTIME_DIR if available, else use /tmp.
        QString xdgRuntimeDir = QStandardPaths::writableLocation(QStandardPaths::RuntimeLocation);
        if (xdgRuntimeDir.isEmpty()) {
                return QStandardPaths::writableLocation(QStandardPaths::TempLocation) + serverName;
        }

        QDir dir = QDir(xdgRuntimeDir);

        // Put the socket in a dedicated directory.
        // This directory will be easily mountable by sandbox containers.
        QDir socketDir = dir.filePath("app/org.keepassxc.KeePassXC");
        if (!socketDir.exists()) dir.mkpath("app/org.keepassxc.KeePassXC");

        QString socketPath = socketDir.path() + "/BrowserServer.socket";

        // Create a symlink at the legacy location for backwards compatibility.
        QFile::link(socketPath, xdgRuntimeDir + serverName);

        return socketPath;
#elif defined(Q_OS_WIN)
        // Windows uses named pipes
        return serverName + "_" + qgetenv("USERNAME");
#else // Q_OS_MACOS and others
        return QStandardPaths::writableLocation(QStandardPaths::TempLocation) + serverName;
#endif
    }
} // namespace BrowserShared