Send only the HTTP header for a page to the browser. Returns: None

Declared in file: hzDissemino.h
Defined in file : hdsGenerate.cpp

Function Logic:

Function body:

void hdsPage::Head (hzHttpEvent* pE)
{
   //  Send only the HTTP header for a page to the browser.
   //  
   //  Arguments: 1) pE The HTTP event
   //  
   //  Returns: None
   _hzfunc("hdsPage::Head") ;
   ifstream    is ;            //  Read file stream
   hzXDate     d ;             //  Date for header lines
   hzChain     Z ;             //  Response for browser is built here
   const char* pEnd ;          //  Filename extension and hence type
   hzMimetype  type ;          //  File's HTTP type
   HttpRC      hrc ;           //  HTTP return code
   hzEcode     rc ;            //  Return code from sending function
   //  Establish real filename, either cpFilename or index.htm(l)
   //  Determine the type of file so that the correct header can be
   //  sent to the browser
   pEnd = strrchr(*m_Url, CHAR_PERIOD) ;
   if (pEnd)
       type = Filename2Mimetype(pEnd) ;
   else
       type = HMTYPE_TXT_HTML ;
   //  Send the header
   Z.Clear() ;
   switch  (hrc)
   {
   case HTTPMSG_OK:        Z << "HTTP/1.1 200 OK\r\n" ;        break ;
   case HTTPMSG_NOTFOUND:  Z << "HTTP/1.1 404 Not found\r\n" ; break ;
   default:
       Z.Printf("HTTP/1.1 %03d\r\n", hrc) ;
   } ;
   d.SysDateTime() ;
   Z.Printf("Date: %s\r\n", d.Txt(FMT_DT_INET)) ;
   Z << "Server: HTTP/1.0 (HadronZoo, Linux)\r\n" ;
   Z.Printf("Last-Modified: %s\r\n", d.Txt(FMT_DT_INET)) ;
   d.altdate(SECOND, 1000);
   Z.Printf("Expires: %s\r\n", d.Txt(FMT_DT_INET)) ;
   Z << "Accept-Ranges: bytes\r\n" ;
   if (hrc == HTTPMSG_OK)
       Z.Printf("Content-Length: 0\r\n") ;
   Z << "Content-Type: " << Mimetype2Txt(type) << "\n\n" ;
   pE->SendRawChain(HTTPMSG_OK, HMTYPE_TXT_HTML, Z, 0,false) ;
}