void ReadPostData(Buf &buf)
{
DWORD dwStep=4096;
DWORD dwReadThis;
DWORD dwThisStep;
DWORD dwTotalBytes;
Buf lpszContentLength;
GetEnv(__T("CONTENT_LENGTH"), lpszContentLength);
dwTotalBytes = (DWORD)_tstol(lpszContentLength.Get());
buf.AllocExact(dwTotalBytes + 1);
buf.Clear();
do {
dwThisStep = (DWORD) min(dwTotalBytes-buf.Length(),dwStep);
dwReadThis = dwThisStep;
if ( dwThisStep > 0 ) {
dwReadThis = 0;
if ( !ReadFile(GetStdHandle(STD_INPUT_HANDLE),buf.GetTail(),dwReadThis,
&dwReadThis,NULL) )
dwReadThis = 0;
}
buf.SetLength(buf.Length() + dwReadThis);
} while ( (dwReadThis==dwThisStep) && (buf.Length()<dwTotalBytes) );
*buf.GetTail() = __T('\0');
lpszContentLength.Free();
}
//
// Works like _getenv(), but uses win32 functions instead.
//
void GetEnv(LPTSTR lpszEnvVar, Buf &buf) {
DWORD dwLen = 0;
if ( lpszEnvVar ) {
dwLen = GetEnvironmentVariable(lpszEnvVar, NULL, 0);
}
if ( dwLen == 0 )
buf.Clear();
else {
buf.AllocExact(dwLen+1);
GetEnvironmentVariable(lpszEnvVar, buf.Get(), dwLen);
buf.SetLength();
}
}
void SearchVar(Buf &lpszParamCgi,LPCTSTR lpszVarName,BOOL fMimeDecode, Buf &ret)
{
Buf lpAlloc;
LPTSTR lpszProvCmp,lpszVarForCmp;
DWORD dwVarNameLen=(DWORD)_tcslen(lpszVarName);
DWORD dwLineLen=(DWORD)lpszParamCgi.Length();
DWORD dwPos=0;
ret.Clear();
lpAlloc.AllocExact((dwVarNameLen+0x10)*2);
lpszProvCmp=lpAlloc.Get();
lpszVarForCmp=lpAlloc.Get()+(((dwVarNameLen+7)/4)*4);
_tcscpy(lpszVarForCmp,lpszVarName);
_tcscat(lpszVarForCmp,__T("="));
*(lpszProvCmp+dwVarNameLen+1) = __T('\0');
while ( dwPos < dwLineLen ) {
DWORD dwNextPos = SearchNextPos(lpszParamCgi.Get()+dwPos,FALSE);
if ( dwPos+dwVarNameLen >= dwLineLen )
break;
memcpy(lpszProvCmp,lpszParamCgi.Get()+dwPos,(dwVarNameLen+1)*sizeof(_TCHAR));
if ( _tcsicmp(lpszProvCmp,lpszVarForCmp) == 0 ) {
DWORD dwLenContent = dwNextPos-(dwVarNameLen+1);
ret.Alloc(dwLenContent+0x10);
ret.Add(lpszParamCgi.Get()+dwPos+dwVarNameLen+1,dwLenContent);
if ( fMimeDecode ) {
url_decode(ret.Get());
ret.SetLength();
}
break;
}
dwPos += dwNextPos+1;
}
lpAlloc.Free();
}