nymea-plugins/httpcommander/httpsimpleserver.cpp

104 lines
3.3 KiB
C++

// SPDX-License-Identifier: GPL-3.0-or-later
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
*
* Copyright (C) 2013 - 2024, nymea GmbH
* Copyright (C) 2024 - 2025, chargebyte austria GmbH
*
* This file is part of nymea-plugins.
*
* nymea-plugins 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.
*
* nymea-plugins 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 nymea-plugins. If not, see <https://www.gnu.org/licenses/>.
*
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#include "httpsimpleserver.h"
#include "extern-plugininfo.h"
#include <QTcpSocket>
#include <QDebug>
#include <QDateTime>
#include <QUrlQuery>
#include <QRegularExpression>
#include <QStringList>
HttpSimpleServer::HttpSimpleServer(quint16 port, QObject *parent):
QTcpServer(parent)
{
listen(QHostAddress::Any, port);
}
HttpSimpleServer::~HttpSimpleServer()
{
close();
}
void HttpSimpleServer::incomingConnection(qintptr socket)
{
// When a new client connects, the server constructs a QTcpSocket and all
// communication with the client is done over this QTcpSocket. QTcpSocket
// works asynchronously, this means that all the communication is done
// in the two slots readClient() and discardClient().
QTcpSocket* tcpSocket = new QTcpSocket(this);
connect(tcpSocket, &QTcpSocket::readyRead, this, &HttpSimpleServer::readClient);
connect(tcpSocket, &QTcpSocket::disconnected, this, &HttpSimpleServer::discardClient);
tcpSocket->setSocketDescriptor(socket);
}
void HttpSimpleServer::readClient()
{
// This slot is called when the client sent data to the server. The
// server looks if it was a get request and sends a very simple HTML
// document back.
QTcpSocket *tcpSocket = static_cast<QTcpSocket*>(sender());
if (tcpSocket->canReadLine()) {
QByteArray data = tcpSocket->readAll();
QStringList tokens = QString(data).split(QRegularExpression("[ \r\n][ \r\n]*"));
qCDebug(dcHttpCommander()) << "Http Request, type" << tokens[0] << "path" << tokens[1] << "body" << tokens.last();
if ((tokens[0] == "GET") ||
(tokens[0] == "PUT") ||
(tokens[0] == "POST") ||
(tokens[0] == "DELETE")) {
QTextStream os(tcpSocket);
os.setAutoDetectUnicode(true);
os << generateHeader();
tcpSocket->close();
if (tcpSocket->state() == QTcpSocket::UnconnectedState)
delete tcpSocket;
emit requestReceived(tokens[0], tokens[1], tokens.last());
}
}
}
void HttpSimpleServer::discardClient()
{
QTcpSocket *socket = static_cast<QTcpSocket *>(sender());
socket->deleteLater();
}
QString HttpSimpleServer::generateHeader()
{
QString contentHeader(
"HTTP/1.0 200 Ok\r\n"
"Content-Type: text/html; charset=\"utf-8\"\r\n"
"\r\n"
);
return contentHeader;
}