kdeconnect-kde/core/backends/bluetooth/bluetoothpairinghandler.cpp
Matthijs Tijink 97551d09ff Add handling for the identity packet to be split across two messages.
Summary: If the identity packet is split across two packets, then save it until we get a notification that more data is available for reading over the bluetooth link.

Test Plan: Connect a phone and laptop over Bluetooth, and verify that both the phone and laptop are able to see each other, and that either side can start and successfully go through the pairing process.

Reviewers: #kde_connect, mtijink

Reviewed By: #kde_connect, mtijink

Subscribers: mtijink, kdeconnect

Tags: #kde_connect

Differential Revision: https://phabricator.kde.org/D17789
2018-12-31 13:25:59 +01:00

151 lines
4.6 KiB
C++

/**
* Copyright 2015 Vineet Garg <grg.vineet@gmail.com>
*
* This program 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 2 of
* the License or (at your option) version 3 or any later version
* accepted by the membership of KDE e.V. (or its successor approved
* by the membership of KDE e.V.), which shall act as a proxy
* defined in Section 14 of version 3 of the license.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <KLocalizedString>
#include "core_debug.h"
#include "daemon.h"
#include "kdeconnectconfig.h"
#include "bluetoothpairinghandler.h"
#include "networkpackettypes.h"
BluetoothPairingHandler::BluetoothPairingHandler(DeviceLink* deviceLink)
: PairingHandler(deviceLink)
, m_status(NotPaired)
{
m_pairingTimeout.setSingleShot(true);
m_pairingTimeout.setInterval(pairingTimeoutMsec());
connect(&m_pairingTimeout, &QTimer::timeout, this, &BluetoothPairingHandler::pairingTimeout);
}
void BluetoothPairingHandler::packetReceived(const NetworkPacket& np)
{
qCDebug(KDECONNECT_CORE) << "Pairing packet received!" << np.serialize();
m_pairingTimeout.stop();
bool wantsPair = np.get<bool>("pair");
if (wantsPair) {
if (isPairRequested()) { //We started pairing
qCDebug(KDECONNECT_CORE) << "Pair answer";
setInternalPairStatus(Paired);
} else {
qCDebug(KDECONNECT_CORE) << "Pair request";
if (isPaired()) { //I'm already paired, but they think I'm not
acceptPairing();
return;
}
setInternalPairStatus(RequestedByPeer);
}
} else { //wantsPair == false
qCDebug(KDECONNECT_CORE) << "Unpair request";
setInternalPairStatus(NotPaired);
if (isPairRequested()) {
Q_EMIT pairingError(i18n("Canceled by other peer"));
}
}
}
bool BluetoothPairingHandler::requestPairing()
{
switch (m_status) {
case Paired:
Q_EMIT pairingError(i18n("%1: Already paired", deviceLink()->name()));
return false;
case Requested:
Q_EMIT pairingError(i18n("%1: Pairing already requested for this device", deviceLink()->name()));
return false;
case RequestedByPeer:
qCDebug(KDECONNECT_CORE) << deviceLink()->name() << " : Pairing already started by the other end, accepting their request.";
acceptPairing();
return false;
case NotPaired:
;
}
NetworkPacket np(PACKET_TYPE_PAIR);
np.set("pair", true);
bool success;
success = deviceLink()->sendPacket(np);
if (success) {
setInternalPairStatus(Requested);
m_pairingTimeout.start();
}
return success;
}
bool BluetoothPairingHandler::acceptPairing()
{
qCDebug(KDECONNECT_CORE) << "User accepts pairing";
m_pairingTimeout.stop(); // Just in case it is started
NetworkPacket np(PACKET_TYPE_PAIR);
np.set("pair", true);
bool success = deviceLink()->sendPacket(np);
if (success) {
setInternalPairStatus(Paired);
}
return success;
}
void BluetoothPairingHandler::rejectPairing()
{
qCDebug(KDECONNECT_CORE) << "User rejects pairing";
NetworkPacket np(PACKET_TYPE_PAIR);
np.set("pair", false);
deviceLink()->sendPacket(np);
setInternalPairStatus(NotPaired);
}
void BluetoothPairingHandler::unpair() {
NetworkPacket np(PACKET_TYPE_PAIR);
np.set("pair", false);
deviceLink()->sendPacket(np);
setInternalPairStatus(NotPaired);
}
void BluetoothPairingHandler::pairingTimeout()
{
NetworkPacket np(PACKET_TYPE_PAIR);
np.set("pair", false);
deviceLink()->sendPacket(np);
setInternalPairStatus(NotPaired); //Will emit the change as well
Q_EMIT pairingError(i18n("Timed out"));
}
void BluetoothPairingHandler::setInternalPairStatus(BluetoothPairingHandler::InternalPairStatus status)
{
m_status = status;
if (status == Paired) {
deviceLink()->setPairStatus(DeviceLink::Paired);
} else if (status == NotPaired){
deviceLink()->setPairStatus(DeviceLink::NotPaired);
} else if (status == RequestedByPeer) {
Q_EMIT deviceLink()->pairingRequest(this);
}
}