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/*
* This file is part of smolbote. It's copyrighted by the contributors recorded
* in the version control history of the file, available from its original
* location: git://neueland.iserlohn-fortress.net/smolbote.git
*
* SPDX-License-Identifier: GPL-3.0
*/
#include "singleapplication.h"
#include <QLocalServer>
#include <QLocalSocket>
#include <QDataStream>
#include <QUrl>
#include <cstdlib>
QHash<QString, QVariant> paramStructToHash(const SingleApplication::SessionParam ¶ms)
{
QHash<QString, QVariant> hashedParams;
hashedParams.insert("profile", params.profile);
hashedParams.insert("newWindow", params.newWindow);
QList<QVariant> urls;
for(const QUrl &url : params.urls) {
urls.append(url);
}
hashedParams.insert("urls", urls);
return hashedParams;
}
SingleApplication::SessionParam paramStructFromHash(const QHash<QString, QVariant> ¶ms)
{
SingleApplication::SessionParam structParams;
structParams.profile = params.value("profile").toString();
structParams.newWindow = params.value("newWindow").toBool();
for(const QVariant &val : params.value("urls").toList()) {
structParams.urls.append(val.toUrl());
}
return structParams;
}
SingleApplication::SingleApplication(int &argc, char **argv) : QApplication(argc, argv)
{
#ifdef Q_OS_UNIX
// could be a path such as "/tmp/foo"
LOCALSERVER_KEY = "smolbote_socket";
#elif Q_OS_WIN32
// could be a pipe path such as "\\.\pipe\foo"
LOCALSERVER_KEY = "\\.\pipe\smolbote_socket";
#endif
}
SingleApplication::~SingleApplication()
{
if(m_localServer != nullptr) {
if(m_localServer->isListening()) {
m_localServer->close();
QLocalServer::removeServer(LOCALSERVER_KEY);
}
}
}
/**
* @brief SingleApplication::bindLocalSocket check for running local server by connecting to it
* @return true if no other instance, false otherwise
*/
bool SingleApplication::bindLocalSocket(const QString &name)
{
// if a name has been set
if(!name.isEmpty()) {
LOCALSERVER_KEY = name;
}
QLocalSocket socket;
socket.connectToServer(LOCALSERVER_KEY);
if(socket.waitForConnected(LOCALSERVER_TIMEOUT)) {
// another server is running
socket.close();
return false;
}
// there is either no such socket, or the socket wasn't cleaned up
else {
m_localServer = new QLocalServer(this);
connect(m_localServer, &QLocalServer::newConnection, this, &SingleApplication::parseMessage);
// no other server
QLocalServer::removeServer(LOCALSERVER_KEY);
if(!m_localServer->listen(LOCALSERVER_KEY)) {
// for some reason, we still can't bind the socket
return false;
}
return true;
}
}
QString SingleApplication::serverName() const
{
Q_CHECK_PTR(m_localServer);
return m_localServer->fullServerName();
}
int SingleApplication::sendMessage(const SessionParam ¶ms)
{
QLocalSocket socket;
socket.connectToServer(LOCALSERVER_KEY);
if(socket.waitForConnected(LOCALSERVER_TIMEOUT)) {
QByteArray argumentData;
QDataStream ds(&argumentData, QIODevice::WriteOnly);
ds << paramStructToHash(params);
socket.write(argumentData);
socket.waitForBytesWritten(LOCALSERVER_TIMEOUT);
return EXIT_SUCCESS;
}
return EXIT_FAILURE;
}
void SingleApplication::parseMessage()
{
QLocalSocket *socket = m_localServer->nextPendingConnection();
// null socket --> return
if(socket == nullptr) {
return;
}
socket->waitForReadyRead();
QByteArray argumentData = socket->readAll();
// skip if we got no data
if(argumentData.isEmpty()) {
return;
}
QHash<QString, QVariant> params;
QDataStream ds(argumentData);
ds >> params;
socket->deleteLater();
emit messageAvailable(paramStructFromHash(params));
}
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