diff options
Diffstat (limited to 'examples/network/network-chat/connection.cpp')
| -rw-r--r-- | examples/network/network-chat/connection.cpp | 110 |
1 files changed, 41 insertions, 69 deletions
diff --git a/examples/network/network-chat/connection.cpp b/examples/network/network-chat/connection.cpp index cffd495349..0f59cc91ed 100644 --- a/examples/network/network-chat/connection.cpp +++ b/examples/network/network-chat/connection.cpp @@ -1,57 +1,10 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Copyright (C) 2018 Intel Corporation. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:BSD$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** BSD License Usage -** Alternatively, you may use this file under the terms of the BSD license -** as follows: -** -** "Redistribution and use in source and binary forms, with or without -** modification, are permitted provided that the following conditions are -** met: -** * Redistributions of source code must retain the above copyright -** notice, this list of conditions and the following disclaimer. -** * Redistributions in binary form must reproduce the above copyright -** notice, this list of conditions and the following disclaimer in -** the documentation and/or other materials provided with the -** distribution. -** * Neither the name of The Qt Company Ltd nor the names of its -** contributors may be used to endorse or promote products derived -** from this software without specific prior written permission. -** -** -** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2016 The Qt Company Ltd. +// Copyright (C) 2018 Intel Corporation. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause #include "connection.h" -#include <QtNetwork> +#include <QTimerEvent> static const int TransferTimeout = 30 * 1000; static const int PongTimeout = 60 * 1000; @@ -68,18 +21,12 @@ static const int PingInterval = 5 * 1000; * plaintext = { 0 => text } * ping = { 1 => null } * pong = { 2 => null } - * greeting = { 3 => text } + * greeting = { 3 => { text, bytes } } */ Connection::Connection(QObject *parent) : QTcpSocket(parent), writer(this) { - greetingMessage = tr("undefined"); - username = tr("unknown"); - state = WaitingForGreeting; - currentDataType = Undefined; - transferTimerId = -1; - isGreetingMessageSent = false; pingTimer.setInterval(PingInterval); connect(this, &QTcpSocket::readyRead, this, @@ -101,7 +48,7 @@ Connection::Connection(qintptr socketDescriptor, QObject *parent) Connection::~Connection() { - if (isGreetingMessageSent) { + if (isGreetingMessageSent && QAbstractSocket::state() != QAbstractSocket::UnconnectedState) { // Indicate clean shutdown. writer.endArray(); waitForBytesWritten(2000); @@ -113,9 +60,15 @@ QString Connection::name() const return username; } -void Connection::setGreetingMessage(const QString &message) +void Connection::setGreetingMessage(const QString &message, const QByteArray &uniqueId) { greetingMessage = message; + localUniqueId = uniqueId; +} + +QByteArray Connection::uniqueId() const +{ + return peerUniqueId; } bool Connection::sendMessage(const QString &message) @@ -171,7 +124,29 @@ void Connection::processReadyRead() reader.next(); } else { // Current state: read command payload - if (reader.isString()) { + if (currentDataType == Greeting) { + if (state == ReadingGreeting) { + if (!reader.isContainer() || !reader.isLengthKnown() || reader.length() != 2) + break; // protocol error + state = ProcessingGreeting; + reader.enterContainer(); + } + if (state != ProcessingGreeting) + break; // protocol error + if (reader.isString()) { + auto r = reader.readString(); + buffer += r.data; + } else if (reader.isByteArray()) { + auto r = reader.readByteArray(); + peerUniqueId += r.data; + if (r.status == QCborStreamReader::EndOfString) { + reader.leaveContainer(); + processGreeting(); + } + } + if (state == ProcessingGreeting) + continue; + } else if (reader.isString()) { auto r = reader.readString(); buffer += r.data; if (r.status != QCborStreamReader::EndOfString) @@ -179,7 +154,7 @@ void Connection::processReadyRead() } else if (reader.isNull()) { reader.next(); } else { - break; // protocol error + break; // protocol error } // Next state: no command read @@ -189,13 +164,7 @@ void Connection::processReadyRead() transferTimerId = -1; } - if (state == ReadingGreeting) { - if (currentDataType != Greeting) - break; // protocol error - processGreeting(); - } else { - processData(); - } + processData(); } } @@ -225,7 +194,10 @@ void Connection::sendGreetingMessage() writer.startMap(1); writer.append(Greeting); + writer.startArray(2); writer.append(greetingMessage); + writer.append(localUniqueId); + writer.endArray(); writer.endMap(); isGreetingMessageSent = true; |