rbutil/rbutilqt/httpget.cpp

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  *
   9  *   Copyright (C) 2007 by Dominik Riebeling
  10  *   $Id:$
  11  *
  12  * All files in this archive are subject to the GNU General Public License.
  13  * See the file COPYING in the source tree root for full license agreement.
  14  *
  15  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  16  * KIND, either express or implied.
  17  *
  18  ****************************************************************************/
  19
  20 #include <QtCore>
  21 #include <QtNetwork>
  22 #include <QtDebug>
  23
  24 #include "httpget.h"
  25
  26
  27 HttpGet::HttpGet(QObject *parent)
  28     : QObject(parent)
  29 {
  30
  31     outputFile = new QFile(this);
  32     connect(&http, SIGNAL(done(bool)), this, SLOT(httpDone(bool)));
  33     connect(&http, SIGNAL(dataReadProgress(int, int)), this, SLOT(httpProgress(int, int)));
  34     connect(&http, SIGNAL(requestFinished(int, bool)), this, SLOT(httpFinished(int, bool)));
  35     connect(&http, SIGNAL(responseHeaderReceived(const QHttpResponseHeader&)), this, SLOT(httpResponseHeader(const QHttpResponseHeader&)));
  36 }
  37
  38
  39 QHttp::Error HttpGet::error()
  40 {
  41     return http.error();
  42 }
  43
  44 void HttpGet::httpProgress(int read, int total)
  45 {
  46     emit dataReadProgress(read, total);
  47 }
  48
  49
  50 void HttpGet::setProxy(const QUrl &proxy)
  51 {
  52     qDebug() << "HttpGet::setProxy" << proxy.toString();
  53     http.setProxy(proxy.host(), proxy.port(), proxy.userName(), proxy.password());
  54 }
  55
  56
  57 void HttpGet::setFile(QFile *file)
  58 {
  59     outputFile = file;
  60     qDebug() << "HttpGet::setFile" << outputFile->fileName();
  61 }
  62
  63
  64 void HttpGet::abort()
  65 {
  66     http.abort();
  67     outputFile->close();
  68 }
  69
  70
  71 bool HttpGet::getFile(const QUrl &url)
  72 {
  73     if (!url.isValid()) {
  74         qDebug() << "Error: Invalid URL" << endl;
  75         return false;
  76     }
  77
  78     if (url.scheme() != "http") {
  79         qDebug() << "Error: URL must start with 'http:'" << endl;
  80         return false;
  81     }
  82
  83     if (url.path().isEmpty()) {
  84         qDebug() << "Error: URL has no path" << endl;
  85         return false;
  86     }
  87
  88     QString localFileName = outputFile->fileName();
  89     if (localFileName.isEmpty())
  90         outputFile->setFileName(QFileInfo(url.path()).fileName());
  91
  92     if (!outputFile->open(QIODevice::ReadWrite)) {
  93         qDebug() << "Error: Cannot open " << qPrintable(outputFile->fileName())
  94             << " for writing: " << qPrintable(outputFile->errorString())
  95             << endl;
  96         return false;
  97     }
  98
  99     http.setHost(url.host(), url.port(80));
 100     http.get(url.path(), outputFile);
 101     http.close();
 102     return true;
 103 }
 104
 105 void HttpGet::httpDone(bool error)
 106 {
 107     if (error) {
 108         qDebug() << "Error: " << qPrintable(http.errorString()) << endl;
 109     } else {
 110         qDebug() << "File downloaded as " << qPrintable(outputFile->fileName())
 111              << endl;
 112     }
 113     outputFile->close();
 114     emit done(error);
 115 }
 116
 117
 118 void HttpGet::httpFinished(int id, bool error)
 119 {
 120     qDebug() << "HttpGet::httpFinished";
 121     qDebug() << "id:" << id << "error:" << error;
 122     emit requestFinished(id, error);
 123
 124 }
 125
 126
 127 QString HttpGet::errorString()
 128 {
 129     return http.errorString();
 130 }
 131
 132
 133 void HttpGet::httpResponseHeader(const QHttpResponseHeader &resp)
 134 {
 135     qDebug() << "HttpGet::httpResponseHeader()" << resp.statusCode();
 136     response = resp.statusCode();
 137     if(response != 200) http.abort();
 138 }
 139
 140
 141 int HttpGet::httpResponse()
 142 {
 143     return response;
 144 }