GUI: Begin IPC mechanism to open files despite sandboxing

gui/main.cpp

@@ -2,19 +2,51 @@
 #include <QSettings>
 #include <QMessageBox>
 #include <QStandardPaths>
+#include <QProcess>
+
 #include "mainwindow.h"
 #include "searchresult.h"
 #include "pdfpreview.h"
 #include "../shared/common.h"
 #include "../submodules/qssb.h/qssb.h"
+#include "ipcserver.h"
 
 int main(int argc, char *argv[])
 {
+	QString socketPath = "/tmp/looqs-spawner";
+	if(argc > 1)
+	{
+		QApplication a(argc, argv);
+		QString arg = argv[1];
+		if(arg == "ipc")
+		{
+			IpcServer *ipcserver = new IpcServer();
+			qDebug() << "Launching ipc";
+			if(!ipcserver->startSpawner(socketPath))
+			{
+				qDebug() << "Error failed to spawn";
+				return 1;
+			}
+			qDebug() << "Launched";
+		}
+		return a.exec();
+	}
+	QProcess process;
+	QStringList args;
+	args << "ipc";
+	if(!process.startDetached("/proc/self/exe", args))
+	{
+		QString errorMsg = "Failed to start IPC server";
+		qDebug() << errorMsg;
+		QMessageBox::critical(nullptr, "Error", errorMsg);
+	}
+
 	struct qssb_policy *policy = qssb_init_policy();
 	std::string appDataLocation = QStandardPaths::writableLocation(QStandardPaths::AppLocalDataLocation).toStdString();
 	std::string cacheDataLocation = QStandardPaths::writableLocation(QStandardPaths::CacheLocation).toStdString();
-
+	std::string sockPath = socketPath.toStdString();
 	policy->namespace_options = QSSB_UNSHARE_NETWORK | QSSB_UNSHARE_USER;
+
 	qssb_append_path_policy(policy, QSSB_FS_ALLOW_READ | QSSB_FS_ALLOW_REMOVE_FILE, "/");
 	qssb_append_path_policy(policy, QSSB_FS_ALLOW_READ | QSSB_FS_ALLOW_REMOVE_FILE | QSSB_FS_ALLOW_WRITE,
 							appDataLocation.c_str());
@@ -44,7 +76,9 @@ int main(int argc, char *argv[])
 	qRegisterMetaType<QVector<SearchResult>>("QVector<SearchResult>");
 	qRegisterMetaType<QVector<PdfPreview>>("QVector<PdfPreview>");
 	qRegisterMetaType<PdfPreview>("PdfPreview");
-	MainWindow w;
+
+	IPCClient client{socketPath};
+	MainWindow w{0, client};
 	w.showMaximized();
 
 	return a.exec();