src/apps/mplayerc/ISDb.cpp

   1 #include "stdafx.h"
   2 #include "ISDb.h"
   3 #include "mplayerc.h"
   4
   5 bool hash(LPCTSTR fn, filehash& fh)
   6 {
   7         CFile f;
   8         CFileException fe;
   9         if(!f.Open(fn, CFile::modeRead|CFile::osSequentialScan|CFile::shareDenyNone, &fe))
  10         return false;
  11
  12         CPath p(fn);
  13         p.StripPath();
  14         fh.name = (LPCTSTR)p;
  15
  16         fh.size = f.GetLength();
  17
  18         fh.hash = fh.size;
  19         for(UINT64 tmp = 0, i = 0; i < 65536/sizeof(tmp) && f.Read(&tmp, sizeof(tmp)); fh.hash += tmp, i++);
  20         f.Seek(max(0, (INT64)fh.size - 65536), CFile::begin);
  21         for(UINT64 tmp = 0, i = 0; i < 65536/sizeof(tmp) && f.Read(&tmp, sizeof(tmp)); fh.hash += tmp, i++);
  22
  23         return true;
  24 }
  25
  26 void hash(CPlaylist& pl, CList<filehash>& fhs)
  27 {
  28         fhs.RemoveAll();
  29
  30         POSITION pos = pl.GetHeadPosition();
  31         while(pos)
  32         {
  33                 CString fn = pl.GetNext(pos).m_fns.GetHead();
  34                 if(AfxGetAppSettings().Formats.FindExt(CPath(fn).GetExtension().MakeLower(), true))
  35                         continue;
  36
  37                 filehash fh;
  38                 if(!hash(fn, fh))
  39                         continue;
  40
  41                 fhs.AddTail(fh);
  42         }
  43 }
  44
  45 CStringA makeargs(CPlaylist& pl)
  46 {
  47         CList<filehash> fhs;
  48         hash(pl, fhs);
  49
  50         CAtlList<CStringA> args;
  51
  52         POSITION pos = fhs.GetHeadPosition();
  53         for(int i = 0; pos; i++)
  54         {
  55                 filehash& fh = fhs.GetNext(pos);
  56
  57                 CStringA str;
  58                 str.Format("name[%d]=%s&size[%d]=%016I64x&hash[%d]=%016I64x",
  59                         i, UrlEncode(CStringA(fh.name)),
  60                         i, fh.size,
  61                         i, fh.hash);
  62
  63                 args.AddTail(str);
  64         }
  65
  66         return Implode(args, '&');
  67 }
  68
  69 bool OpenUrl(CInternetSession& is, CString url, CStringA& str)
  70 {
  71         str.Empty();
  72
  73         try
  74         {
  75                 CAutoPtr<CStdioFile> f(is.OpenURL(url, 1, INTERNET_FLAG_TRANSFER_BINARY|INTERNET_FLAG_EXISTING_CONNECT));
  76
  77                 char buff[1024];
  78                 for(int len; (len = f->Read(buff, sizeof(buff))) > 0; str += CStringA(buff, len));
  79
  80                 f->Close(); // must close it because the desctructor doesn't seem to do it and we will get an exception when "is" is destroying
  81         }
  82         catch(CInternetException* ie)
  83         {
  84                 ie->Delete();
  85                 return false;
  86         }
  87
  88         return true;
  89 }