/// <summary>
/// Parses a string with a http request into a structured object.
/// If something goes wrong it throws an HttpProtocolException
/// </summary>
public static HttpRequest Parse(string requestString)
{
try
{
int currentMillis = Environment.TickCount;
HttpRequest request = new HttpRequest();
logger.Info("(" + request.identifier + ") Parse request: " + requestString);
if (String.IsNullOrWhiteSpace(requestString))
{
logger.Debug("(" + request.identifier + ") Request to parse is null or whitespace");
return request;
}
// in the http-protocol lines must end with CR + LF
string[] lines = requestString.Split(new string[] { "\r\n" }, StringSplitOptions.None);
request.Method = request.GetHttpMethodFromFirstRequestLine(lines[0]);
request.URL = request.GetURLFromFirstRequestLine(lines[0]);
request.HttpVersion = request.GetHttpVersionFromFirstRequestLine(lines[0]);
request.headers = request.ParseHeader(lines);
request.CheckAndSetValidity(request);
logger.Debug("(" + request.identifier + ") Parsing took " + (Environment.TickCount - currentMillis) + " ms");
return request;
}
catch (Exception e)
{
throw new HttpProtocolException("Error parsing a http request", e);
}
}
private void CheckAndSetValidity(HttpRequest r)
{
bool valid = r.Method != HttpMethodEnum.None && r.HttpVersion != HttpVersionEnum.None &&
r.URL != null;
r.valid = valid;
logger.Debug("(" + identifier + ") Evaluated validity to " + valid);
}
