<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>ftpcontrolchannel.cpp Example File | Qt SCXML 5.12.6</title> <link rel="stylesheet" type="text/css" href="style/offline-simple.css" /> <script type="text/javascript"> document.getElementsByTagName("link").item(0).setAttribute("href", "style/offline.css"); // loading style sheet breaks anchors that were jumped to before // so force jumping to anchor again setTimeout(function() { var anchor = location.hash; // need to jump to different anchor first (e.g. none) location.hash = "#"; setTimeout(function() { location.hash = anchor; }, 0); }, 0); </script> </head> <body> <div class="header" id="qtdocheader"> <div class="main"> <div class="main-rounded"> <div class="navigationbar"> <table><tr> <td >Qt 5.12</td><td ><a href="qtscxml-index.html">Qt SCXML</a></td><td ><a href="qtscxml-ftpclient-example.html">Qt SCXML FTP Client Example</a></td><td >ftpcontrolchannel.cpp Example File</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right"><a href="qtscxml-index.html">Qt 5.12.6 Reference Documentation</a></td> </tr></table> </div> </div> <div class="content"> <div class="line"> <div class="content mainContent"> <div class="sidebar"><div class="sidebar-content" id="sidebar-content"></div></div> <h1 class="title">ftpcontrolchannel.cpp Example File</h1> <span class="subtitle">ftpclient/ftpcontrolchannel.cpp</span> <!-- $$$ftpclient/ftpcontrolchannel.cpp-description --> <div class="descr"> <a name="details"></a> <pre class="cpp"> <span class="comment">/**************************************************************************** ** ** Copyright (C) 2016 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the QtScxml module 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." ** ** $QT_END_LICENSE$ ** ****************************************************************************/</span> <span class="preprocessor">#include "ftpcontrolchannel.h"</span> FtpControlChannel<span class="operator">::</span>FtpControlChannel(<span class="type">QObject</span> <span class="operator">*</span>parent) : <span class="type">QObject</span>(parent) { connect(<span class="operator">&</span>m_socket<span class="operator">,</span> <span class="operator">&</span><span class="type">QIODevice</span><span class="operator">::</span>readyRead<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>FtpControlChannel<span class="operator">::</span>onReadyRead); connect(<span class="operator">&</span>m_socket<span class="operator">,</span> <span class="operator">&</span><span class="type">QAbstractSocket</span><span class="operator">::</span>disconnected<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>FtpControlChannel<span class="operator">::</span>closed); connect(<span class="operator">&</span>m_socket<span class="operator">,</span> <span class="operator">&</span><span class="type">QAbstractSocket</span><span class="operator">::</span>connected<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">[</span><span class="keyword">this</span><span class="operator">]</span>() { <span class="keyword">emit</span> opened(m_socket<span class="operator">.</span>localAddress()<span class="operator">,</span> m_socket<span class="operator">.</span>localPort()); }); } <span class="type">void</span> FtpControlChannel<span class="operator">::</span>connectToServer(<span class="keyword">const</span> <span class="type">QString</span> <span class="operator">&</span>server) { m_socket<span class="operator">.</span>connectToHost(server<span class="operator">,</span> <span class="number">21</span>); } <span class="type">void</span> FtpControlChannel<span class="operator">::</span>command(<span class="keyword">const</span> <span class="type">QByteArray</span> <span class="operator">&</span>command<span class="operator">,</span> <span class="keyword">const</span> <span class="type">QByteArray</span> <span class="operator">&</span>params) { <span class="type">QByteArray</span> sendData <span class="operator">=</span> command; <span class="keyword">if</span> (<span class="operator">!</span>params<span class="operator">.</span>isEmpty()) sendData <span class="operator">+</span><span class="operator">=</span> <span class="string">" "</span> <span class="operator">+</span> params; m_socket<span class="operator">.</span>write(sendData <span class="operator">+</span> <span class="string">"\r\n"</span>); } <span class="type">void</span> FtpControlChannel<span class="operator">::</span>onReadyRead() { m_buffer<span class="operator">.</span>append(m_socket<span class="operator">.</span>readAll()); <span class="type">int</span> rn <span class="operator">=</span> <span class="operator">-</span><span class="number">1</span>; <span class="keyword">while</span> ((rn <span class="operator">=</span> m_buffer<span class="operator">.</span>indexOf(<span class="string">"\r\n"</span>)) <span class="operator">!</span><span class="operator">=</span> <span class="operator">-</span><span class="number">1</span>) { <span class="type">QByteArray</span> received <span class="operator">=</span> m_buffer<span class="operator">.</span>mid(<span class="number">0</span><span class="operator">,</span> rn); m_buffer <span class="operator">=</span> m_buffer<span class="operator">.</span>mid(rn <span class="operator">+</span> <span class="number">2</span>); <span class="type">int</span> space <span class="operator">=</span> received<span class="operator">.</span>indexOf(<span class="char">' '</span>); <span class="keyword">if</span> (space <span class="operator">!</span><span class="operator">=</span> <span class="operator">-</span><span class="number">1</span>) { <span class="type">int</span> code <span class="operator">=</span> received<span class="operator">.</span>mid(<span class="number">0</span><span class="operator">,</span> space)<span class="operator">.</span>toInt(); <span class="keyword">if</span> (code <span class="operator">=</span><span class="operator">=</span> <span class="number">0</span>) <span class="keyword">emit</span> info(received<span class="operator">.</span>mid(space <span class="operator">+</span> <span class="number">1</span>)); <span class="keyword">else</span> <span class="keyword">emit</span> reply(code<span class="operator">,</span> received<span class="operator">.</span>mid(space <span class="operator">+</span> <span class="number">1</span>)); } <span class="keyword">else</span> { <span class="keyword">emit</span> invalidReply(received); } } } </pre> </div> <!-- @@@ftpclient/ftpcontrolchannel.cpp --> </div> </div> </div> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2019 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners.<br/> The documentation provided herein is licensed under the terms of the <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation License version 1.3</a> as published by the Free Software Foundation.<br/> Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners. </p> </div> </body> </html>