rbutil/rbutilqt/utils.cpp

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  *
   9  *   Copyright (C) 2007 by Dominik Wenger
  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 "utils.h"
  21
  22 #include <cstdlib>
  23
  24 #include <QDir>
  25
  26 #if defined(Q_OS_WIN32)
  27 #if defined(UNICODE)
  28 #define _UNICODE
  29 #endif
  30 #include <windows.h>
  31 #include <tchar.h>
  32 #endif
  33 #include <QDebug>
  34
  35 // recursive function to delete a dir with files
  36 bool recRmdir( const QString &dirName )
  37 {
  38     QString dirN = dirName;
  39     QDir dir(dirN);
  40     // make list of entries in directory
  41     QStringList list = dir.entryList(QDir::AllEntries | QDir::NoDotAndDotDot);
  42     QFileInfo fileInfo;
  43     QString curItem, lstAt;
  44     for(int i = 0; i < list.size(); i++){ // loop through all items of list
  45         QString name = list.at(i);
  46         curItem = dirN + "/" + name;
  47         fileInfo.setFile(curItem);
  48         if(fileInfo.isDir())    // is directory
  49             recRmdir(curItem);  // call recRmdir() recursively for deleting subdirectory
  50         else                    // is file
  51             QFile::remove(curItem); // ok, delete file
  52     }
  53     dir.cdUp();
  54     return dir.rmdir(dirN); // delete empty dir and return if (now empty) dir-removing was successfull
  55 }
  56
  57
  58 //! @brief resolves the given path, ignoring case.
  59 //! @param path absolute path to resolve.
  60 //! @return returns exact casing of path, empty string if path not found.
  61 QString resolvePathCase(QString path)
  62 {
  63     QStringList elems;
  64     QString realpath;
  65
  66     elems = path.split("/", QString::SkipEmptyParts);
  67     int start;
  68 #if defined(Q_OS_WIN32)
  69     // on windows we must make sure to start with the first entry (i.e. the
  70     // drive letter) instead of a single / to make resolving work.
  71     start = 1;
  72     realpath = elems.at(0) + "/";
  73 #else
  74     start = 0;
  75     realpath = "/";
  76 #endif
  77
  78     for(int i = start; i < elems.size(); i++) {
  79         QStringList direlems
  80             = QDir(realpath).entryList(QDir::AllEntries|QDir::Hidden|QDir::System);
  81         if(direlems.contains(elems.at(i), Qt::CaseInsensitive)) {
  82             // need to filter using QRegExp as QStringList::filter(QString)
  83             // matches any substring
  84             QString expr = QString("^" + elems.at(i) + "$");
  85             QRegExp rx = QRegExp(expr, Qt::CaseInsensitive);
  86             QStringList a = direlems.filter(rx);
  87
  88             if(a.size() != 1)
  89                 return QString("");
  90             if(!realpath.endsWith("/"))
  91                 realpath += "/";
  92             realpath += a.at(0);
  93         }
  94         else
  95             return QString("");
  96     }
  97     qDebug() << __func__ << path << "->" << realpath;
  98     return realpath;
  99 }
 100
 101
 102 //! @brief get system proxy value.
 103 QUrl systemProxy(void)
 104 {
 105 #if defined(Q_OS_LINUX)
 106     return QUrl(getenv("http_proxy"));
 107 #elif defined(Q_OS_WIN32)
 108     HKEY hk;
 109     wchar_t proxyval[80];
 110     DWORD buflen = 80;
 111     long ret;
 112     DWORD enable;
 113     DWORD enalen = sizeof(DWORD);
 114
 115     ret = RegOpenKeyEx(HKEY_CURRENT_USER,
 116         _TEXT("Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings"),
 117         0, KEY_QUERY_VALUE, &hk);
 118     if(ret != ERROR_SUCCESS) return QUrl("");
 119
 120     ret = RegQueryValueEx(hk, _TEXT("ProxyServer"), NULL, NULL, (LPBYTE)proxyval, &buflen);
 121     if(ret != ERROR_SUCCESS) return QUrl("");
 122
 123     ret = RegQueryValueEx(hk, _TEXT("ProxyEnable"), NULL, NULL, (LPBYTE)&enable, &enalen);
 124     if(ret != ERROR_SUCCESS) return QUrl("");
 125
 126     RegCloseKey(hk);
 127
 128     //qDebug() << QString::fromWCharArray(proxyval) << QString("%1").arg(enable);
 129     if(enable != 0)
 130         return QUrl("http://" + QString::fromWCharArray(proxyval));
 131     else
 132         return QUrl("");
 133 #else
 134     return QUrl("");
 135 #endif
 136 }
 137
 138 QString installedVersion(QString mountpoint)
 139 {
 140     // read rockbox-info.txt
 141     QFile info(mountpoint +"/.rockbox/rockbox-info.txt");
 142     if(!info.open(QIODevice::ReadOnly))
 143     {
 144         return "";
 145     }
 146
 147     QString target, features,version;
 148     while (!info.atEnd()) {
 149         QString line = info.readLine();
 150
 151         if(line.contains("Version:"))
 152         {
 153             return line.remove("Version:").trimmed();
 154         }
 155     }
 156     info.close();
 157     return "";
 158 }
 159