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/*
Plugin of Miranda IM for communicating with users of the MSN Messenger protocol.
Copyright (c) 2003-5 George Hazan.
Copyright (c) 2002-3 Richard Hughes (original version).
Miranda IM: the free icq client for MS Windows
Copyright (C) 2000-2002 Richard Hughes, Roland Rabien & Tristan Van de Vreede
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "msn_global.h"
#include "sha1.h"
/////////////////////////////////////////////////////////////////////////////////////////
// MSN_BitmapToAvatarDibBits - rescales a bitmap to 96x96 pixels and creates a DIB from it
HBITMAP __stdcall MSN_StretchBitmap( HBITMAP hBitmap )
{
BITMAPINFO bmStretch = { 0 };
bmStretch.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
bmStretch.bmiHeader.biWidth = 96;
bmStretch.bmiHeader.biHeight = 96;
bmStretch.bmiHeader.biPlanes = 1;
bmStretch.bmiHeader.biBitCount = 32;
UINT* ptPixels;
HBITMAP hStretchedBitmap = CreateDIBSection( NULL, &bmStretch, DIB_RGB_COLORS, ( void** )&ptPixels, NULL, 0);
if ( hStretchedBitmap == NULL ) {
MSN_DebugLog( "Bitmap creation failed with error %d", GetLastError() );
return NULL;
}
BITMAP bmp;
HDC hDC = CreateCompatibleDC( NULL );
HBITMAP hOldBitmap1 = ( HBITMAP )SelectObject( hDC, hBitmap );
GetObject( hBitmap, sizeof( BITMAP ), &bmp );
HDC hBmpDC = CreateCompatibleDC( hDC );
HBITMAP hOldBitmap2 = ( HBITMAP )SelectObject( hBmpDC, hStretchedBitmap );
int side, dx, dy;
if ( bmp.bmWidth > bmp.bmHeight ) {
side = bmp.bmHeight;
dx = ( bmp.bmWidth - bmp.bmHeight )/2;
dy = 0;
}
else {
side = bmp.bmWidth;
dx = 0;
dy = ( bmp.bmHeight - bmp.bmWidth )/2;
}
SetStretchBltMode( hBmpDC, HALFTONE );
StretchBlt( hBmpDC, 0, 0, 96, 96, hDC, dx, dy, side, side, SRCCOPY );
SelectObject( hDC, hOldBitmap1 );
DeleteObject( hBitmap );
DeleteDC( hDC );
SelectObject( hBmpDC, hOldBitmap2 );
DeleteDC( hBmpDC );
return hStretchedBitmap;
}
/////////////////////////////////////////////////////////////////////////////////////////
// MSN_SaveBitmapAsAvatar - updates the avatar database settins and file from a bitmap
int __stdcall MSN_SaveBitmapAsAvatar( HBITMAP hBitmap, const char* szFileName )
{
if ( !MSN_LoadPngModule())
return 1;
HDC hdc = CreateCompatibleDC( NULL );
HBITMAP hOldBitmap = ( HBITMAP )SelectObject( hdc, hBitmap );
BITMAPINFO* bmi = ( BITMAPINFO* )alloca( sizeof( BITMAPINFO ) + sizeof( RGBQUAD )*256 );
memset( bmi, 0, sizeof( BITMAPINFO ));
bmi->bmiHeader.biSize = 0x28;
if ( GetDIBits( hdc, hBitmap, 0, 96, NULL, bmi, DIB_RGB_COLORS ) == 0 ) {
TWinErrorCode errCode;
MSN_ShowError( "Unable to get the bitmap: error %d (%s)", errCode.mErrorCode, errCode.getText() );
return 2;
}
BITMAPINFOHEADER* pDib;
BYTE* pDibBits;
pDib = ( BITMAPINFOHEADER* )GlobalAlloc( LPTR, sizeof( BITMAPINFO ) + sizeof( RGBQUAD )*256 + bmi->bmiHeader.biSizeImage );
if ( pDib == NULL )
return 3;
memcpy( pDib, bmi, sizeof( BITMAPINFO ) + sizeof( RGBQUAD )*256 );
pDibBits = (( BYTE* )pDib ) + sizeof( BITMAPINFO ) + sizeof( RGBQUAD )*256;
GetDIBits( hdc, hBitmap, 0, pDib->biHeight, pDibBits, ( BITMAPINFO* )pDib, DIB_RGB_COLORS );
SelectObject( hdc, hOldBitmap );
DeleteDC( hdc );
long dwPngSize = 0;
DIB2PNG convertor;
convertor.pbmi = ( BITMAPINFO* )pDib;
convertor.pDiData = pDibBits;
convertor.pResult = NULL;
convertor.pResultLen = &dwPngSize;
if ( !CallService( MS_DIB2PNG, 0, (LPARAM)&convertor )) {
GlobalFree( pDib );
return 2;
}
convertor.pResult = new BYTE[ dwPngSize ];
CallService( MS_DIB2PNG, 0, (LPARAM)&convertor );
GlobalFree( pDib );
SHA1Context sha1ctx;
BYTE sha1c[ SHA1HashSize ], sha1d[ SHA1HashSize ];
char szSha1c[ 40 ], szSha1d[ 40 ];
SHA1Reset( &sha1ctx );
SHA1Input( &sha1ctx, convertor.pResult, dwPngSize );
SHA1Result( &sha1ctx, sha1d );
{ NETLIBBASE64 nlb = { szSha1d, sizeof szSha1d, ( PBYTE )sha1d, sizeof sha1d };
MSN_CallService( MS_NETLIB_BASE64ENCODE, 0, LPARAM( &nlb ));
}
char drive[_MAX_DRIVE];
char dir[_MAX_DIR];
char fname[_MAX_FNAME];
char ext[_MAX_EXT];
_splitpath(szFileName, drive, dir, fname, ext );
SHA1Reset( &sha1ctx );
char szEmail[ MSN_MAX_EMAIL_LEN ];
MSN_GetStaticString( "e-mail", NULL, szEmail, sizeof szEmail );
SHA1Input( &sha1ctx, ( PBYTE )"Creator", 7 );
SHA1Input( &sha1ctx, ( PBYTE )szEmail, strlen( szEmail ));
char szFileSize[ 20 ];
ltoa( dwPngSize, szFileSize, 10 );
SHA1Input( &sha1ctx, ( PBYTE )"Size", 4 );
SHA1Input( &sha1ctx, ( PBYTE )szFileSize, strlen( szFileSize ));
SHA1Input( &sha1ctx, ( PBYTE )"Type", 4 );
SHA1Input( &sha1ctx, ( PBYTE )"3", 1 );
SHA1Input( &sha1ctx, ( PBYTE )"Location", 8 );
SHA1Input( &sha1ctx, ( PBYTE )fname, sizeof(fname));
SHA1Input( &sha1ctx, ( PBYTE )"Friendly", 8 );
SHA1Input( &sha1ctx, ( PBYTE )"AAA=", 4 );
SHA1Input( &sha1ctx, ( PBYTE )"SHA1D", 5 );
SHA1Input( &sha1ctx, ( PBYTE )szSha1d, strlen( szSha1d ));
SHA1Result( &sha1ctx, sha1c );
{ NETLIBBASE64 nlb = { szSha1c, sizeof szSha1c, ( PBYTE )sha1c, sizeof sha1c };
MSN_CallService( MS_NETLIB_BASE64ENCODE, 0, LPARAM( &nlb ));
}
{
char* szBuffer = ( char* )alloca( 1000 );
mir_snprintf( szBuffer, 1000,
"<msnobj Creator=\"%s\" Size=\"%ld\" Type=\"3\" Location=\"%s\" Friendly=\"AAA=\" SHA1D=\"%s\" SHA1C=\"%s\"/>",
szEmail, dwPngSize,fname, szSha1d, szSha1c );
char* szEncodedBuffer = ( char* )alloca( 1000 );
UrlEncode( szBuffer, szEncodedBuffer, 1000 );
MSN_SetString( NULL, "PictObject", szEncodedBuffer );
}
{ char tFileName[ MAX_PATH ];
MSN_GetAvatarFileName( NULL, tFileName, sizeof tFileName );
FILE* out = fopen( tFileName, "wb" );
if ( out != NULL ) {
fwrite( convertor.pResult, dwPngSize, 1, out );
fclose( out );
} }
delete convertor.pResult;
return ERROR_SUCCESS;
}
/////////////////////////////////////////////////////////////////////////////////////////
// MSN_EnterBitmapFileName - enters a bitmap filename
int __stdcall MSN_EnterBitmapFileName( char* szDest )
{
*szDest = 0;
char szFilter[ 512 ];
MSN_CallService( MS_UTILS_GETBITMAPFILTERSTRINGS, sizeof szFilter, ( LPARAM )szFilter );
char str[ MAX_PATH ]; str[0] = 0;
OPENFILENAMEA ofn = {0};
ofn.lStructSize = sizeof( OPENFILENAME );
ofn.lpstrFilter = szFilter;
ofn.lpstrFile = szDest;
ofn.Flags = OFN_FILEMUSTEXIST | OFN_HIDEREADONLY;
ofn.nMaxFile = MAX_PATH;
ofn.nMaxFileTitle = MAX_PATH;
ofn.lpstrDefExt = "bmp";
if ( !GetOpenFileNameA( &ofn ))
return 1;
return ERROR_SUCCESS;
}
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