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/*
# Copyright (c) 2009 - OpenSLX Project, Computer Center University of Freiburg
#
# This program is free software distributed under the GPL version 2.
# See http://openslx.org/COPYING
#
# If you have any feedback please consult http://openslx.org/feedback and
# send your suggestions, praise, or complaints to feedback@openslx.org
#
# General information about OpenSLX can be found at http://openslx.org/
# -----------------------------------------------------------------------------
# src/net/SslServer.cpp
# - provide QTcpServer-like behaviour for SSL
# -----------------------------------------------------------------------------
*/
#include "sslserver.h"
#include <QtNetwork/QSslCipher>
#include <QtNetwork/QSslSocket>
#include <QTimer>
#include "certmanager.h"
#include <unistd.h>
SslServer::SslServer() : QTcpServer(nullptr), _timer(new QTimer(this))
{
connect(_timer, &QTimer::timeout, [=]() {
if (_pending.empty())
return;
const qint64 deadline = QDateTime::currentMSecsSinceEpoch() - 10000;
QMutableHashIterator<QSslSocket*, qint64> it(_pending);
while (it.hasNext()) { // Remove lingering connections after 10s
it.next();
if (it.value() < deadline) {
it.key()->blockSignals(true);
it.key()->deleteLater();
it.remove();
}
}
});
_timer->start(10000);
}
SslServer::~SslServer()
{
_timer->stop();
for (QSslSocket *sock : _pending.keys()) {
sock->deleteLater();
}
}
/**
* Handle incomming connection.
* @param socketDescriptor
*/
void SslServer::incomingConnection(qintptr socketDescriptor)
{
static int certFails = 0;
QSslKey key;
QSslCertificate cert;
if (!CertManager::getPrivateKeyAndCert("manager", key, cert)) {
if (++certFails > 5) {
CertManager::fatal();
}
::close(int(socketDescriptor));
return;
}
QSslSocket *serverSocket = new QSslSocket(nullptr);
connect(serverSocket, QOverload<const QList<QSslError> &>::of(&QSslSocket::sslErrors), this, &SslServer::sslErrors);
serverSocket->setPrivateKey(key);
serverSocket->setLocalCertificate(cert);
serverSocket->setPeerVerifyMode(QSslSocket::VerifyNone);
serverSocket->setProtocol(QSsl::SecureProtocols);
if (serverSocket->setSocketDescriptor(socketDescriptor)) {
_pending.insert(serverSocket, QDateTime::currentMSecsSinceEpoch());
// Once the connection is successfully encrypted, raise our newConnection event
connect(serverSocket, &QSslSocket::encrypted, [=]() {
serverSocket->disconnect(this);
if (_pending.remove(serverSocket) == 0) {
// Should never happen, so better log...
qDebug() << "Encryption event for socket that is not pending!?";
} else {
this->addPendingConnection(serverSocket);
emit newConnection();
}
});
serverSocket->startServerEncryption();
} else {
qDebug() << "Failed to setSocketDescriptor on new SSL Socket";
serverSocket->deleteLater();
}
}
void SslServer::sslErrors(const QList<QSslError>& errors)
{
qDebug() << "Client caused sslErrors before connection:";
for (QList<QSslError>::const_iterator it = errors.begin(); it != errors.end(); it++) {
qDebug() << it->errorString();
}
}
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