rbutil/rbutilqt/base/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  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21
  22
  23 #ifndef HTTPGET_H
  24 #define HTTPGET_H
  25
  26 #include <QtCore>
  27 #include <QtNetwork>
  28
  29 class QUrl;
  30
  31 class HttpGet : public QObject
  32 {
  33     Q_OBJECT
  34
  35     public:
  36         HttpGet(QObject *parent = 0);
  37
  38         bool getFile(const QUrl &url);
  39         void setProxy(const QUrl &url);
  40         void setProxy(bool);
  41         QHttp::Error error(void);
  42         QString errorString(void);
  43         void setFile(QFile*);
  44         void setCache(QDir);
  45         void setCache(bool);
  46         int httpResponse(void);
  47         QByteArray readAll(void);
  48         bool isCached()
  49             { return m_cached; }
  50         QDateTime timestamp(void)
  51             { return m_serverTimestamp; }
  52         void setDumbCache(bool b) //< disable checking of http header timestamp for caching
  53             { m_dumbCache = b; }
  54         static void setGlobalCache(const QDir d) //< set global cache path
  55             { m_globalCache = d; }
  56         static void setGlobalProxy(const QUrl p) //< set global proxy value
  57             { m_globalProxy = p; }
  58         static void setGlobalDumbCache(bool b) //< set "dumb" (ignore server status) caching mode
  59             { m_globalDumbCache = b; }
  60         static void setGlobalUserAgent(QString u) //< set global user agent string
  61             { m_globalUserAgent = u; }
  62
  63     public slots:
  64         void abort(void);
  65
  66     signals:
  67         void done(bool);
  68         void dataReadProgress(int, int);
  69         void requestFinished(int, bool);
  70         void headerFinished(void);
  71
  72     private slots:
  73         void httpDone(bool error);
  74         void httpFinished(int, bool);
  75         void httpResponseHeader(const QHttpResponseHeader&);
  76         void httpState(int);
  77         void httpStarted(int);
  78         void getFileFinish(void);
  79
  80     private:
  81         bool initializeCache(const QDir&);
  82         QHttp http; //< download object
  83         QFile *outputFile;
  84         int m_response; //< http response
  85         int getRequest;  //! get file http request id
  86         int headRequest; //! get http header request id
  87         QByteArray dataBuffer;
  88         bool outputToBuffer;
  89         bool m_usecache;
  90         QDir m_cachedir;
  91         QString m_cachefile; // cached filename
  92         bool m_cached;
  93         QUrl m_proxy;
  94         QDateTime m_serverTimestamp; //< timestamp of file on server
  95         QString m_query; //< constructed query to pass http getter
  96         QString m_path; //< constructed path to pass http getter
  97         QString m_hash; //< caching hash
  98         bool m_dumbCache; //< true if caching should ignore the server header
  99         QHttpRequestHeader m_header;
 100
 101         static QDir m_globalCache; //< global cache path value
 102         static QUrl m_globalProxy; //< global proxy value
 103         static bool m_globalDumbCache; //< cache "dumb" mode global setting
 104         static QString m_globalUserAgent; //< global user agent string
 105 };
 106
 107 #endif