private void SendResponse()
{
var statusCode = response.Status;
var responseBody = ProcessRanges(response, ref statusCode);
var responseStream = new ConcatenatedStream();
try
{
var headerBlock = new StringBuilder();
headerBlock.AppendFormat(
"HTTP/1.1 {0} {1}\r\n",
(uint)statusCode,
HttpPhrases.Phrases[statusCode]
);
headerBlock.Append(response.Headers.HeaderBlock);
headerBlock.Append(CRLF);
var headerStream = new MemoryStream(
Encoding.ASCII.GetBytes(headerBlock.ToString()));
responseStream.AddStream(headerStream);
if (Method != "HEAD" && responseBody != null)
{
responseStream.AddStream(responseBody);
responseBody = null;
}
owner.Logger.LogTrace($"{this} - {(uint)statusCode} response for {Path}");
state = HttpStates.Writing;
var sp = new StreamPump(responseStream, stream, BUFFER_SIZE);
sp.Pump((pump, result) =>
{
pump.Input.Close();
pump.Input.Dispose();
if (result == StreamPumpResult.Delivered)
{
owner.Logger.LogTrace($"{this} - Done writing response");
string conn;
if (Headers.TryGetValue("connection", out conn) &&
conn.ToUpperInvariant() == "KEEP-ALIVE")
{
ReadNext();
return;
}
}
else
{
owner.Logger.LogTrace($"{this} - Client aborted connection");
}
Close();
});
}
catch (Exception)
{
responseStream.Dispose();
throw;
}
finally
{
responseBody?.Dispose();
}
}
internal Redirect(HttpCode code, string uri)
: base(code, "text/plain", "Redirecting...")
{
Headers.Add("Location", uri);
}
private void ReadCallback(IAsyncResult result)
{
if (state == HttpStates.Closed)
{
return;
}
State = HttpStates.Reading;
try
{
var read = stream.EndRead(result);
if (read < 0)
{
throw new HttpException("Client did not send anything");
}
owner.Logger.LogTrace($"{this} - Read {read} bytes");
readStream.Write(buffer, 0, read);
lastActivity = DateTime.Now;
}
catch (Exception)
{
if (!IsATimeout)
{
owner.Logger.LogTrace($"{this} - Failed to read data");
Close();
}
return;
}
try
{
if (!hasHeaders)
{
readStream.Seek(0, SeekOrigin.Begin);
var reader = new StreamReader(readStream);
for (var line = reader.ReadLine();
line != null;
line = reader.ReadLine())
{
line = line.Trim();
if (string.IsNullOrEmpty(line))
{
hasHeaders = true;
readStream = StreamManager.GetStream();
if (Headers.ContainsKey("content-length") &&
uint.TryParse(Headers["content-length"], out bodyBytes))
{
if (bodyBytes > 1 << 20)
{
throw new IOException("Body too long");
}
var ascii = Encoding.ASCII.GetBytes(reader.ReadToEnd());
readStream.Write(ascii, 0, ascii.Length);
owner.Logger.LogTrace($"Must read body bytes {bodyBytes}");
}
break;
}
if (Method == null)
{
var parts = line.Split(new[] { ' ' }, 3);
Method = parts[0].Trim().ToUpperInvariant();
Path = parts[1].Trim();
owner.Logger.LogTrace($"{this} - {Method} request for {Path}");
}
else
{
var parts = line.Split(new[] { ':' }, 2);
Headers[parts[0]] = Uri.UnescapeDataString(parts[1]).Trim();
}
}
}
if (bodyBytes != 0 && bodyBytes > readStream.Length)
{
owner.Logger.LogTrace($"{this} - Bytes to go { (bodyBytes - readStream.Length) }");
Read();
return;
}
using (readStream)
{
Body = Encoding.UTF8.GetString(readStream.ToArray());
}
SetupResponse();
}
catch (Exception ex)
{
owner.Logger.LogTrace($"{this} - Failed to process request Ex [{ ex }]");
response = error500.HandleRequest(this);
SendResponse();
}
}