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()
  47             { return m_cached; }
  48         QDateTime timestamp(void)
  49             { return m_serverTimestamp; }
  50         void setDumbCache(bool b) //< disable checking of http header timestamp for caching
  51             { m_dumbCache = b; }
  52         static void setGlobalCache(const QDir d) //< set global cache path
  53             { m_globalCache = d; }
  54         static void setGlobalProxy(const QUrl p) //< set global proxy value
  55             { m_globalProxy = p; }
  56         static void setGlobalDumbCache(bool b) //< set "dumb" (ignore server status) caching mode
  57             { m_globalDumbCache = b; }
  58
  59     public slots:
  60         void abort(void);
  61
  62     signals:
  63         void done(bool);
  64         void dataReadProgress(int, int);
  65         void requestFinished(int, bool);
  66         void headerFinished(void);
  67
  68     private slots:
  69         void httpDone(bool error);
  70         void httpFinished(int, bool);
  71         void httpResponseHeader(const QHttpResponseHeader&);
  72         void httpState(int);
  73         void httpStarted(int);
  74         void getFileFinish(void);
  75
  76     private:
  77         bool initializeCache(const QDir&);
  78         QHttp http; //< download object
  79         QFile *outputFile;
  80         int m_response; //< http response
  81         int getRequest;  //! get file http request id
  82         int headRequest; //! get http header request id
  83         QByteArray dataBuffer;
  84         bool outputToBuffer;
  85         bool m_usecache;
  86         QDir m_cachedir;
  87         QString m_cachefile; // cached filename
  88         bool m_cached;
  89         QUrl m_proxy;
  90         static QDir m_globalCache; //< global cache path value
  91         static QUrl m_globalProxy; //< global proxy value
  92         static bool m_globalDumbCache; //< cache "dumb" mode global setting
  93         QDateTime m_serverTimestamp; //< timestamp of file on server
  94         QString m_query; //< constructed query to pass http getter
  95         QString m_path; //< constructed path to pass http getter
  96         QString m_hash; //< caching hash
  97         bool m_dumbCache; //< true if caching should ignore the server header
  98 };
  99
 100 #endif