21b245cd71
Since we close old connections when a new connection is received, due to race conditions we could end up without a valid connection in this case. Equivalent to https://invent.kde.org/network/kdeconnect-android/-/merge_requests/382
108 lines
3 KiB
C++
108 lines
3 KiB
C++
/**
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* SPDX-FileCopyrightText: 2013 Albert Vaca <albertvaka@gmail.com>
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*
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* SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
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*/
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#ifndef LANLINKPROVIDER_H
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#define LANLINKPROVIDER_H
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#include <QObject>
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#include <QSslSocket>
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#include <QTcpServer>
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#include <QTimer>
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#include <QUdpSocket>
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#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
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#include <QNetworkConfigurationManager>
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#include <QNetworkSession>
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#else
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#include <QNetworkInformation>
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#endif
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#include "backends/linkprovider.h"
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#include "kdeconnectcore_export.h"
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#include "landevicelink.h"
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#include "server.h"
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#ifdef KDECONNECT_MDNS
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#include "mdnsdiscovery.h"
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#endif
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class KDECONNECTCORE_EXPORT LanLinkProvider : public LinkProvider
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{
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Q_OBJECT
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public:
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/**
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* @param testMode Some special overrides needed while testing
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* @param udpBroadcastPort Port which should be used for *sending* identity packets
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* @param udpListenPort Port which should be used for *receiving* identity packets
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*/
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LanLinkProvider(bool testMode = false, quint16 udpBroadcastPort = UDP_PORT, quint16 udpListenPort = UDP_PORT);
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~LanLinkProvider() override;
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QString name() override
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{
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return QStringLiteral("LanLinkProvider");
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}
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void sendUdpIdentityPacket(const QList<QHostAddress> &addresses);
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static void configureSslSocket(QSslSocket *socket, const QString &deviceId, bool isDeviceTrusted);
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static void configureSocket(QSslSocket *socket);
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/**
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* This is the default UDP port both for broadcasting and receiving identity packets
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*/
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const static quint16 UDP_PORT = 1716;
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const static quint16 MIN_TCP_PORT = 1716;
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const static quint16 MAX_TCP_PORT = 1764;
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public Q_SLOTS:
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void onNetworkChange() override;
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void onLinkDestroyed(const QString &deviceId, DeviceLink *oldPtr) override;
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void onStart() override;
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void onStop() override;
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void tcpSocketConnected();
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void encrypted();
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void connectError(QAbstractSocket::SocketError socketError);
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private Q_SLOTS:
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void udpBroadcastReceived();
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void newConnection();
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void dataReceived();
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void sslErrors(const QList<QSslError> &errors);
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void broadcastToNetwork();
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private:
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void addLink(QSslSocket *socket, const DeviceInfo &deviceInfo);
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QList<QHostAddress> getBroadcastAddresses();
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void sendUdpIdentityPacket(QUdpSocket &socket, const QList<QHostAddress> &addresses);
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void broadcastUdpIdentityPacket();
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Server *m_server;
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QUdpSocket m_udpSocket;
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quint16 m_tcpPort;
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quint16 m_udpBroadcastPort;
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quint16 m_udpListenPort;
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QMap<QString, LanDeviceLink *> m_links;
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struct PendingConnect {
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NetworkPacket *np;
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QHostAddress sender;
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};
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QMap<QSslSocket *, PendingConnect> m_receivedIdentityPackets;
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QMap<QString, qint64> m_lastConnectionTime;
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const bool m_testMode;
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QTimer m_combineBroadcastsTimer;
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#ifdef KDECONNECT_MDNS
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MdnsDiscovery m_mdnsDiscovery;
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#endif
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#if QT_VERSION_MAJOR < 6
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QNetworkConfiguration m_lastConfig;
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#endif
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};
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#endif
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