<?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>main.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 >main.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">main.cpp Example File</h1> <span class="subtitle">ftpclient/main.cpp</span> <!-- $$$ftpclient/main.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> <span class="preprocessor">#include "ftpdatachannel.h"</span> <span class="preprocessor">#include "simpleftp.h"</span> <span class="preprocessor">#include <QCoreApplication></span> <span class="preprocessor">#include <iostream></span> <span class="keyword">struct</span> Command { <span class="type">QString</span> cmd; <span class="type">QString</span> args; }; <span class="type">int</span> main(<span class="type">int</span> argc<span class="operator">,</span> <span class="type">char</span> <span class="operator">*</span>argv<span class="operator">[</span><span class="operator">]</span>) { <span class="keyword">if</span> (argc <span class="operator">!</span><span class="operator">=</span> <span class="number">3</span>) { qDebug() <span class="operator"><</span><span class="operator"><</span> <span class="string">"Usage: ftpclient <server> <file>"</span>; <span class="keyword">return</span> <span class="number">1</span>; } <span class="type">QString</span> server <span class="operator">=</span> <span class="type">QString</span><span class="operator">::</span>fromLocal8Bit(argv<span class="operator">[</span><span class="number">1</span><span class="operator">]</span>); <span class="type">QString</span> file <span class="operator">=</span> <span class="type">QString</span><span class="operator">::</span>fromLocal8Bit(argv<span class="operator">[</span><span class="number">2</span><span class="operator">]</span>); <span class="type">QCoreApplication</span> app(argc<span class="operator">,</span> argv); FtpClient ftpClient; FtpDataChannel dataChannel; FtpControlChannel controlChannel; <span class="comment">// Print all data retrieved from the server on the console.</span> <span class="type">QObject</span><span class="operator">::</span>connect(<span class="operator">&</span>dataChannel<span class="operator">,</span> <span class="operator">&</span>FtpDataChannel<span class="operator">::</span>dataReceived<span class="operator">,</span> <span class="operator">[</span><span class="operator">]</span>(<span class="keyword">const</span> <span class="type">QByteArray</span> <span class="operator">&</span>data) { std<span class="operator">::</span>cout <span class="operator"><</span><span class="operator"><</span> data<span class="operator">.</span>constData(); }); <span class="comment">// Translate server replies into state machine events.</span> <span class="type">QObject</span><span class="operator">::</span>connect(<span class="operator">&</span>controlChannel<span class="operator">,</span> <span class="operator">&</span>FtpControlChannel<span class="operator">::</span>reply<span class="operator">,</span> <span class="operator">&</span>ftpClient<span class="operator">,</span> <span class="operator">[</span><span class="operator">&</span>ftpClient<span class="operator">]</span>(<span class="type">int</span> code<span class="operator">,</span> <span class="keyword">const</span> <span class="type">QString</span> <span class="operator">&</span>parameters) { ftpClient<span class="operator">.</span>submitEvent(<span class="type">QString</span>(<span class="string">"reply.%1xx"</span>) <span class="operator">.</span>arg(code <span class="operator">/</span> <span class="number">100</span>)<span class="operator">,</span> parameters); }); <span class="comment">// Translate commands from the state machine into FTP control messages.</span> ftpClient<span class="operator">.</span>connectToEvent(<span class="string">"submit.cmd"</span><span class="operator">,</span> <span class="operator">&</span>controlChannel<span class="operator">,</span> <span class="operator">[</span><span class="operator">&</span>controlChannel<span class="operator">]</span>(<span class="keyword">const</span> <span class="type"><a href="qscxmlevent.html">QScxmlEvent</a></span> <span class="operator">&</span>event) { controlChannel<span class="operator">.</span>command(event<span class="operator">.</span>name()<span class="operator">.</span>mid(<span class="number">11</span>)<span class="operator">.</span>toUtf8()<span class="operator">,</span> event<span class="operator">.</span>data()<span class="operator">.</span>toMap()<span class="operator">[</span><span class="string">"params"</span><span class="operator">]</span><span class="operator">.</span>toByteArray()); }); <span class="comment">// Commands to be sent</span> <span class="type">QList</span><span class="operator"><</span>Command<span class="operator">></span> commands({ {<span class="string">"cmd.USER"</span><span class="operator">,</span> <span class="string">"anonymous"</span>}<span class="operator">,</span><span class="comment">// login</span> {<span class="string">"cmd.PORT"</span><span class="operator">,</span> <span class="string">""</span>}<span class="operator">,</span> <span class="comment">// announce port for data connection,</span> <span class="comment">// args added below.</span> {<span class="string">"cmd.RETR"</span><span class="operator">,</span> file} <span class="comment">// retrieve a file</span> }); <span class="comment">// When entering "B" state, send the next command.</span> ftpClient<span class="operator">.</span>connectToState(<span class="string">"B"</span><span class="operator">,</span> <span class="type"><a href="qscxmlstatemachine.html">QScxmlStateMachine</a></span><span class="operator">::</span>onEntry(<span class="operator">[</span><span class="operator">&</span><span class="operator">]</span>() { <span class="keyword">if</span> (commands<span class="operator">.</span>isEmpty()) { app<span class="operator">.</span>quit(); <span class="keyword">return</span>; } Command command <span class="operator">=</span> commands<span class="operator">.</span>takeFirst(); qDebug() <span class="operator"><</span><span class="operator"><</span> <span class="string">"Posting command"</span> <span class="operator"><</span><span class="operator"><</span> command<span class="operator">.</span>cmd <span class="operator"><</span><span class="operator"><</span> command<span class="operator">.</span>args; ftpClient<span class="operator">.</span>submitEvent(command<span class="operator">.</span>cmd<span class="operator">,</span> command<span class="operator">.</span>args); })); <span class="comment">// If the server asks for a password, send one.</span> ftpClient<span class="operator">.</span>connectToState(<span class="string">"P"</span><span class="operator">,</span> <span class="type"><a href="qscxmlstatemachine.html">QScxmlStateMachine</a></span><span class="operator">::</span>onEntry(<span class="operator">[</span><span class="operator">&</span>ftpClient<span class="operator">]</span>() { qDebug() <span class="operator"><</span><span class="operator"><</span> <span class="string">"Sending password"</span>; ftpClient<span class="operator">.</span>submitEvent(<span class="string">"cmd.PASS"</span><span class="operator">,</span> <span class="type">QString</span>()); })); <span class="comment">// Connect to our own local FTP server</span> controlChannel<span class="operator">.</span>connectToServer(server); <span class="type">QObject</span><span class="operator">::</span>connect(<span class="operator">&</span>controlChannel<span class="operator">,</span> <span class="operator">&</span>FtpControlChannel<span class="operator">::</span>opened<span class="operator">,</span> <span class="operator">[</span><span class="operator">&</span><span class="operator">]</span>(<span class="keyword">const</span> <span class="type">QHostAddress</span> <span class="operator">&</span>address<span class="operator">,</span> <span class="type">int</span>) { dataChannel<span class="operator">.</span>listen(address); commands<span class="operator">[</span><span class="number">1</span><span class="operator">]</span><span class="operator">.</span>args <span class="operator">=</span> dataChannel<span class="operator">.</span>portspec(); ftpClient<span class="operator">.</span>start(); }); <span class="keyword">return</span> app<span class="operator">.</span>exec(); } </pre> </div> <!-- @@@ftpclient/main.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>