rbutil/rbutilqt/httpget.h

   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
  21 #ifndef HTTPGET_H
  22 #define HTTPGET_H
  23
  24 #include <QtCore>
  25 #include <QtNetwork>
  26
  27 class QUrl;
  28
  29 class HttpGet : public QObject
  30 {
  31     Q_OBJECT
  32
  33     public:
  34         HttpGet(QObject *parent = 0);
  35
  36         bool getFile(const QUrl &url);
  37         void setProxy(const QUrl &url);
  38         void setProxy(bool);
  39         QHttp::Error error(void);
  40         QString errorString(void);
  41         void setFile(QFile*);
  42         void setCache(QDir);
  43         void setCache(bool);
  44         int httpResponse(void);
  45         QByteArray readAll(void);
  46         bool isCached() { return m_cached; }
  47         void setNoHeaderCheck(bool b) { m_noHeaderCheck = b; } //< disable checking of http header timestamp for caching
  48         static void setGlobalCache(const QDir d) //< set global cache path
  49             { m_globalCache = d; }
  50         static void setGlobalProxy(const QUrl p) //< set global proxy value
  51             { m_globalProxy = p; }
  52
  53     public slots:
  54         void abort(void);
  55
  56     signals:
  57         void done(bool);
  58         void dataReadProgress(int, int);
  59         void requestFinished(int, bool);
  60         void headerFinished(void);
  61
  62     private slots:
  63         void httpDone(bool error);
  64         void httpProgress(int, int);
  65         void httpFinished(int, bool);
  66         void httpResponseHeader(const QHttpResponseHeader&);
  67         void httpState(int);
  68         void httpStarted(int);
  69         void getFileFinish(void);
  70
  71     private:
  72         bool initializeCache(const QDir&);
  73         QHttp http; //< download object
  74         QFile *outputFile;
  75         int m_response; //< http response
  76         int getRequest;  //! get file http request id
  77         int headRequest; //! get http header request id
  78         QByteArray dataBuffer;
  79         bool outputToBuffer;
  80         bool m_usecache;
  81         QDir m_cachedir;
  82         QString m_cachefile; // cached filename
  83         bool m_cached;
  84         QUrl m_proxy;
  85         static QDir m_globalCache; //< global cache path value
  86         static QUrl m_globalProxy; //< global proxy value
  87         QDateTime m_serverTimestamp; //< timestamp of file on server
  88         QString m_query; //< constructed query to pass http getter
  89         QString m_path; //< constructed path to pass http getter
  90         QString m_hash; //< caching hash
  91         bool m_noHeaderCheck; //< true if caching should ignore the server header
  92 };
  93
  94 #endif