#include <wininet/HTTPHeader.hpp>

void HTTPHeader::parseHeader(Block<String> &headerLines)
{
  for(int index=0;index<headerLines.size();index++)
	{
	  const String &headerLine=headerLines[index];
		const String strToken=headerLine.betweenString(0,':');
    if(!index)mResponseCode=headerLine.betweenString(' ',' ').toInt();
		if(strToken=="Date")mDate=headerLine.betweenString(' ',0);
		else if(strToken=="Server")mServer=headerLine.betweenString(' ',0);
		else if(strToken=="Last-Modified")mLastModified=headerLine.betweenString(' ',0);
		else if(strToken=="ETag")mETag=headerLine.betweenString(' ',0);
		else if(strToken=="Accept-Ranges")mAcceptRanges=headerLine.betweenString(' ',0);
		else if(strToken=="Content-Length")mContentLength=headerLine.betweenString(' ',0).toInt();
		else if(strToken=="Content-Type")mContentType=headerLine.betweenString(' ',0);
		else if(strToken=="Accept")mAccept=headerLine.betweenString(' ',0);
	}  
}

void HTTPHeader::parseHeader(const String &headerLines)
{
  Block<String> blkHeaderLines;
	createHeaderLines(headerLines,blkHeaderLines);
	*this=blkHeaderLines;
}

void HTTPHeader::createHeaderLines(String strHeaders,Block<String> &headerLines)
{
  char *strPtr=0;
	headerLines.remove();
	if(strHeaders.isNull())return;
	strPtr=strHeaders.str();
	strPtr=::strtok(strPtr,"\n\0");
	while(true)
	{
	  if(!strPtr)break;
		String str=strPtr;
		str.removeTokens("\r\n");
		headerLines.insert(&str);
		strPtr=::strtok(0,"\n\0");
	}
}

String HTTPHeader::serialize(void)
{
  String strHeader;
	String crlf="\r\n";
	
	if(!mDate.isNull())strHeader+=String("Date: ")+mDate+crlf;
	if(!mServer.isNull())strHeader+=String("Server: ")+mServer+crlf;
	if(!mLastModified.isNull())strHeader+=String("Last-Modified: ")+mLastModified+crlf;
	if(!mETag.isNull())strHeader+=String("ETag: ")+mETag+crlf;
	if(!mAcceptRanges.isNull())strHeader+=String("Accept-Ranges: ")+mAcceptRanges+crlf;
	if(0!=mContentLength)strHeader+=String("Content-Length :")+String().fromInt(mContentLength)+crlf;
	if(!mContentType.isNull())strHeader+=String("Content-Type: ")+mContentType+crlf;
	return strHeader;
}

String HTTPHeader::getApplicationExtension(void)const
{
  return String(".")+mContentType.betweenString('/',0);
}