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++ // Copyright (C) 2023 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
++
++ #include "ftpdatachannel.h"
++
++ FtpDataChannel::FtpDataChannel(QObject *parent) : QObject(parent)
++ {
++ connect(&m_server, &QTcpServer::newConnection, this, [this]() {
++ m_socket.reset(m_server.nextPendingConnection());
++ connect(m_socket.get(), &QTcpSocket::readyRead, this, [this]() {
++ emit dataReceived(m_socket->readAll());
++ });
++ });
++ }
++
++ void FtpDataChannel::listen(const QHostAddress &address)
++ {
++ m_server.listen(address);
++ }
++
++ void FtpDataChannel::sendData(const QByteArray &data)
++ {
++ if (m_socket)
++ m_socket->write(QByteArray(data).replace("\n", "\r\n"));
++ }
++
++ void FtpDataChannel::close()
++ {
++ if (m_socket)
++ m_socket->disconnectFromHost();
++ }
++
++ QString FtpDataChannel::portspec() const
++ {
++ // Yes, this is a weird format, but say hello to FTP.
++ QString portSpec;
++ quint32 ipv4 = m_server.serverAddress().toIPv4Address();
++ quint16 port = m_server.serverPort();
++ portSpec += QString::number((ipv4 & 0xff000000) >> 24);
++ portSpec += ',' + QString::number((ipv4 & 0x00ff0000) >> 16);
++ portSpec += ',' + QString::number((ipv4 & 0x0000ff00) >> 8);
++ portSpec += ',' + QString::number(ipv4 & 0x000000ff);
++ portSpec += ',' + QString::number((port & 0xff00) >> 8);
++ portSpec += ',' + QString::number(port &0x00ff);
++ return portSpec;
++ }