public UInt32 BuildHttpResponseFromFirstLine(ByteBuilder httpBuilder, String firstLineOfHttpRequest)
{
String[] httpStrings = firstLineOfHttpRequest.Split(new Char[] { ' ' }, 3);
String resourceString = HttpUtility.UrlDecode(httpStrings[1]);
httpBuilder.AppendAscii(httpStrings[2]);
httpBuilder.AppendAscii(' ');
if (resourceString.Equals("/favicon.ico"))
{
httpBuilder.AppendAscii("200 OK\r\nConnection: close\r\nAccess-Control-Allow-Origin: *\r\nContent-Type: text/html\r\nContent-Length: ");
httpBuilder.AppendNumber(DefaultFavIcon.Length);
httpBuilder.AppendAscii(Http.DoubleNewline);
httpBuilder.AppendAscii(DefaultFavIcon);
return(0);
}
else
{
return(BuildHttpResponseFromResource(httpBuilder, resourceString));
}
}
// Returns the offset of the http response in the text builder
public UInt32 BuildHttpResponseFromResource(ByteBuilder httpBuilder, String resourceString)
{
// Append the headers (leave space for content length)
httpBuilder.AppendAscii("200 OK\r\nConnection: close\r\nAccess-Control-Allow-Origin: *\r\nContent-Type: text/html\r\nContent-Length: ??????????\r\n\r\n");
uint contentOffset = httpBuilder.contentLength;
BuildHtmlResponse(httpBuilder, resourceString);
uint contentLength = httpBuilder.contentLength - contentOffset;
// Insert the content length
String contentLengthString = contentLength.ToString();
if (contentLengthString.Length > 10)
{
throw new InvalidOperationException(String.Format("CodeBug: content length {0} is too big", contentLengthString));
}
for (int i = 0; i < contentLengthString.Length; i++)
{
httpBuilder.bytes[contentOffset - 4 - contentLengthString.Length + i] = (byte)contentLengthString[i];
}
// Shift the headers
UInt32 shift = 10 - (uint)contentLengthString.Length; // 10 characters were reserved for the content length
if (shift > 0)
{
for (int i = 0; i <= (contentOffset - 15); i++)
{
httpBuilder.bytes[contentOffset - 5 - contentLengthString.Length - i] =
httpBuilder.bytes[contentOffset - 5 - contentLengthString.Length - i - shift];
}
}
return(shift);
}
