1 files changed, 99 insertions, 0 deletions
diff --git a/lang/qt/src/cleaner.cpp b/lang/qt/src/cleaner.cpp
new file mode 100644
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+++ b/lang/qt/src/cleaner.cpp
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+/*
+    cleaner.cpp
+
+    This file is part of qgpgme, the Qt API binding for gpgme
+    Copyright (c) 2023 g10 Code GmbH
+    Software engineering by Ingo Klöcker <[email protected]>
+
+    QGpgME 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 2 of the
+    License, or (at your option) any later version.
+
+    QGpgME 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, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+    In addition, as a special exception, the copyright holders give
+    permission to link the code of this program with any edition of
+    the Qt library by Trolltech AS, Norway (or with modified versions
+    of Qt that use the same license as Qt), and distribute linked
+    combinations including the two.  You must obey the GNU General
+    Public License in all respects for all of the code used other than
+    Qt.  If you modify this file, you may extend this exception to
+    your version of the file, but you are not obligated to do so.  If
+    you do not wish to do so, delete this exception statement from
+    your version.
+*/
+
+#include "cleaner.h"
+
+#include <qgpgme_debug.h>
+
+#include <QCoreApplication>
+#include <QFile>
+
+#include <chrono>
+
+static const auto timeout = std::chrono::seconds{10};
+
+static bool remove_file(const QString &filePath)
+{
+    if (filePath.isEmpty()) {
+        qCWarning(QGPGME_LOG) << __func__ << "- called with empty file path";
+        return true;
+    }
+    if (QFile::exists(filePath)) {
+        qCDebug(QGPGME_LOG) << __func__ << "- Removing file" << filePath;
+        if (!QFile::remove(filePath)) {
+            qCDebug(QGPGME_LOG) << __func__ << "- Removing file" << filePath << "failed";
+            return false;
+        }
+    } else {
+        qCDebug(QGPGME_LOG) << __func__ << "- File" << filePath << "doesn't exist";
+    }
+    return true;
+}
+
+void Cleaner::removeFile(const QString &filePath)
+{
+    if (!remove_file(filePath)) {
+        // use invokeMethod because we might not be called from the GUI thread
+        // but we want to delegate the Cleaner's clean-up to the application instance
+        QMetaObject::invokeMethod(qApp, [filePath]() {
+            new Cleaner{filePath, qApp};
+        }, Qt::QueuedConnection);
+    }
+}
+
+Cleaner::Cleaner(const QString &filePath, QObject *parent)
+    : QObject{parent}
+    , mFilePath{filePath}
+{
+    qCDebug(QGPGME_LOG) << this << __func__ << filePath;
+    mTimer.setSingleShot(true);
+    mTimer.callOnTimeout([this]() {
+        if (remove_file(mFilePath)) {
+            mFilePath.clear();
+            deleteLater();
+        } else {
+            mTimer.start(timeout);
+        }
+    });
+    mTimer.start(timeout);
+}
+
+Cleaner::~Cleaner()
+{
+    qCDebug(QGPGME_LOG) << this << __func__;
+    if (!mFilePath.isEmpty()) {
+        remove_file(mFilePath);
+    }
+}
+
+#include "cleaner.moc"