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// SPDX-FileCopyrightText: 2022 Daniel Vrátil <dvratil@kde.org>
//
// SPDX-License-Identifier: MIT
#include "testwsserver.h"
#include <QWebSocket>
#include <QWebSocketServer>
#include <QDebug>
#include <QTimer>
#include <QRandomGenerator>
#include <QTest>
#include <chrono>
#include <cstring>
using namespace std::chrono_literals;
class Server : public QObject {
Q_OBJECT
public:
explicit Server() = default;
void setExpectTimeout() {
mExpectTimeout = true;
}
QUrl waitForStart() {
std::unique_lock lock(mMutex);
mCond.wait(lock, [this]() { return !mUrl.isEmpty(); });
return mUrl;
}
bool waitForConnection() {
std::unique_lock lock(mMutex);
if (!mSocket) {
return mCond.wait_for(lock, 5s, [this]() -> bool { return mSocket.get() != nullptr; });
}
return true;
}
void start() {
mServer.reset(new QWebSocketServer(QStringLiteral("QCoroTestWSServer"), QWebSocketServer::NonSecureMode));
if (!mServer->listen(QHostAddress::LocalHost)) {
qCritical() << "WebSocket server failed to start listening";
close();
return;
}
std::scoped_lock lock(mMutex);
mUrl = mServer->serverUrl();
mTimeout.reset(new QTimer());
connect(mTimeout.get(), &QTimer::timeout, this, &Server::newConnectionTimeout);
mTimeout->setSingleShot(true);
mTimeout->start(10s);
connect(mServer.get(), &QWebSocketServer::newConnection,
this, &Server::newConnection);
connect(mServer.get(), &QWebSocketServer::acceptError,
this, [this](auto error) {
qCritical() << "WebSocket server failed to accept incoming connection:" << error;
close();
});
connect(mServer.get(), &QWebSocketServer::serverError,
this, [this](auto error) {
qCritical() << "WebSocket server failed to set up WS connection" << error;
close();
});
mCond.notify_all();
}
void close() {
QThread::currentThread()->quit();
mSocket.reset();
mTimeout.reset();
mServer.reset();
}
private Q_SLOTS:
void newConnectionTimeout() {
if (!mExpectTimeout) {
QFAIL("No incoming connection within timeout");
}
close();
}
void newConnection() {
mTimeout->stop();
{
std::scoped_lock lock(mMutex);
mSocket.reset(mServer->nextPendingConnection());
}
mCond.notify_all();
mTimeout.reset(new QTimer());
connect(mTimeout.get(), &QTimer::timeout, this, [this]() {
if (!mExpectTimeout) {
QFAIL("No incoming request within timeout");
}
close();
});
mTimeout->setSingleShot(true);
mTimeout->start(5s);
connect(mSocket.get(), &QWebSocket::textMessageReceived,
this, [this](const QString &msg) {
mTimeout->stop();
const auto request = mSocket->requestUrl().path();
if (request == QLatin1String("/delay")) {
std::this_thread::sleep_for(300ms);
mSocket->sendTextMessage(msg);
} else if (request == QLatin1String("/large")) {
const auto response = QString::fromLatin1(generateLargeMessage().toHex());
mSocket->sendTextMessage(response);
} else {
mSocket->sendTextMessage(msg);
}
});
connect(mSocket.get(), &QWebSocket::binaryMessageReceived,
this, [this](const QByteArray &msg) {
mTimeout->stop();
const auto request = mSocket->requestUrl().path();
if (request == QLatin1String("/delay")) {
std::this_thread::sleep_for(100ms);
mSocket->sendBinaryMessage(msg);
} else if (request == QLatin1String("/large")) {
mSocket->sendBinaryMessage(generateLargeMessage());
} else {
mSocket->sendBinaryMessage(msg);
}
});
}
private:
QByteArray generateLargeMessage() const {
constexpr qsizetype size = 10 * 1024 * 1024; /* 10MiB */
std::vector<uint64_t> buffer;
buffer.resize(size);
QRandomGenerator::global()->fillRange(buffer.data(), buffer.size());
QByteArray msg;
msg.resize(size);
std::memcpy(msg.data(), buffer.data(), buffer.size());
return msg;
}
std::unique_ptr<QWebSocket> mSocket;
std::unique_ptr<QWebSocketServer> mServer;
std::unique_ptr<QTimer> mTimeout;
std::condition_variable mCond;
std::mutex mMutex;
std::atomic_bool mExpectTimeout;
QUrl mUrl;
};
TestWsServer::TestWsServer() = default;
TestWsServer::~TestWsServer() = default;
void TestWsServer::start() {
mThread.reset(new QThread());
mThread->start();
mServer.reset(new Server());
mServer->moveToThread(mThread.get());
QMetaObject::invokeMethod(mServer.get(), &Server::start, Qt::QueuedConnection);
mUrl = mServer->waitForStart();
}
void TestWsServer::stop() {
if (mThread && mThread->isRunning()) {
QMetaObject::invokeMethod(mServer.get(), &Server::close, Qt::BlockingQueuedConnection);
mThread->wait();
}
mThread.reset();
mServer.reset();
mUrl.clear();
}
QUrl TestWsServer::url() const {
return mUrl;
}
void TestWsServer::setExpectTimeout() {
mServer->setExpectTimeout();
}
bool TestWsServer::waitForConnection() {
return mServer->waitForConnection();
}
#include "testwsserver.moc"
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