/// <summary>
/// Parses an individual requests in HTTP header format.
/// Expects the URL to be part of the first HTTP header line:
///
/// </summary>
/// <param name="requestData"></param>
/// <returns></returns>
public HttpRequestData ParseRequest(string requestData)
{
var reqHttp = new HttpRequestData();
string fullHeader = StringUtils.ExtractString(requestData, "", "\r\n\r\nHTTP", false, true);
reqHttp.FullRequest = fullHeader;
string header = StringUtils.ExtractString(fullHeader, "", "\r\n\r\n", false, true);
var lines = StringUtils.GetLines(header);
reqHttp.Url = StringUtils.ExtractString(lines[0], " ", " HTTP/");
reqHttp.HttpVerb = StringUtils.ExtractString(lines[0], "", " ");
if (reqHttp.HttpVerb == "CONNECT")
{
return(null);
}
if (reqHttp.HttpVerb != "GET")
{
reqHttp.RequestContent = StringUtils.ExtractString(fullHeader, "\r\n\r\n", "\r\nHTTP", false, true);
}
if (lines.Length > 0)
{
lines[0] = string.Empty;
reqHttp.ParseHttpHeaders(lines);
}
reqHttp.Host = reqHttp.Headers
.Where(hd => hd.Name == "Host")
.Select(hd => hd.Value)
.FirstOrDefault();
return(reqHttp);
}
/// <summary>
/// Parses an individual requests in HTTP header format.
/// Expects the URL to be part of the first HTTP header line:
///
/// </summary>
/// <param name="requestData"></param>
/// <returns></returns>
public HttpRequestData ParseRequest(string requestData)
{
var reqHttp = new HttpRequestData();
string fullHeader = StringUtils.ExtractString(requestData, "", "\r\n\r\nHTTP",false,true);
reqHttp.FullRequest = fullHeader;
string header = StringUtils.ExtractString(fullHeader, "", "\r\n\r\n",false,true);
var lines = StringUtils.GetLines(header);
reqHttp.Url = StringUtils.ExtractString(lines[0], " ", " HTTP/");
reqHttp.HttpVerb = StringUtils.ExtractString(lines[0], "", " ");
if (reqHttp.HttpVerb == "CONNECT")
{
return null;
}
if (reqHttp.HttpVerb != "GET")
reqHttp.RequestContent = StringUtils.ExtractString(fullHeader, "\r\n\r\n", "\r\nHTTP", false, true);
if (lines.Length > 0)
{
lines[0] = string.Empty;
reqHttp.ParseHttpHeaders(lines);
}
reqHttp.Host = reqHttp.Headers
.Where(hd => hd.Name == "Host")
.Select(hd => hd.Value)
.FirstOrDefault();
return reqHttp;
}
/// <summary>
/// Parses an individual requests in HTTP header format.
/// Expects the URL to be part of the first HTTP header line:
///
/// Parser supports both CRLF and LF only
/// </summary>
/// <param name="requestData"></param>
/// <returns></returns>
public HttpRequestData ParseRequest(string requestData)
{
StringBuilder sbHeader = new StringBuilder();
StringBuilder sbBody = new StringBuilder();
var reqLines = StringUtils.GetLines(requestData.TrimStart());
var reqHttp = new HttpRequestData();
reqHttp.Url = StringUtils.ExtractString(reqLines[0], " ", " HTTP/");
reqHttp.HttpVerb = StringUtils.ExtractString(reqLines[0], "", " ");
// ignore CONNECT requests
if (reqHttp.HttpVerb == "CONNECT")
{
return(null);
}
int state = 0; // 0 header, 1 body, 2 Response/done
bool lastLineEmpty = false;
for (var index = 0; index < reqLines.Length; index++)
{
var line = reqLines[index];
if (state == 0)
{
if (string.IsNullOrEmpty(line)) // transition to body
{
state = 1;
continue;
}
if (line.StartsWith("HTTP/")) // done
{
break;
}
sbHeader.AppendLine(line);
}
if (state == 1)
{
if (line.StartsWith("HTTP/"))
{
break;
}
sbBody.AppendLine(line);
}
}
reqHttp.FullRequest = sbHeader + (sbBody.Length > 0 ? "\r\n" + sbBody.ToString().TrimEnd() : string.Empty);
if (reqLines.Length > 0)
{
var lines = StringUtils.GetLines(sbHeader.ToString());
lines[0] = string.Empty; // HTTP header is not a 'real' header
reqHttp.ParseHttpHeaders(lines);
}
if (reqHttp.HttpVerb != "GET" && sbBody.Length > 0)
{
reqHttp.RequestContent = sbBody.ToString().TrimEnd();
}
reqHttp.Host = reqHttp.Headers
.Where(hd => hd.Name == "Host")
.Select(hd => hd.Value)
.FirstOrDefault();
return(reqHttp);
}
