public static bool TryParseRequestLine(ReadOnlySpan <byte> buffer, out HttpRequestLine requestLine, out int totalParsedBytes)
{
requestLine = new HttpRequestLine();
totalParsedBytes = 0;
var reader = new HttpRequestReader();
reader.Buffer = buffer;
requestLine.Method = reader.ReadMethod();
if (requestLine.Method == HttpMethod.Unknown)
{
return(false);
}
requestLine.RequestUri = reader.ReadRequestUri();
if (requestLine.RequestUri.Length == 0)
{
return(false);
}
requestLine.Version = reader.ReadHttpVersion();
if (requestLine.Version == HttpVersion.Unknown)
{
return(false);
}
totalParsedBytes = buffer.Length - reader.Buffer.Length;
return(true);
}
protected override HttpServerBuffer CreateResponse(HttpRequestLine requestLine, ByteSpan headerAndBody)
{
var api = Apis.Map(requestLine);
switch (api) {
case Api.GetTime:
return CreateResponseForGetTime();
default:
return CreateResponseFor404(requestLine, headerAndBody);
}
}
protected virtual HttpServerBuffer CreateResponseFor404(HttpRequestLine requestLine) // Not Found
{
Log.LogMessage(Log.Level.Warning, "Request {0}, Response: 404 Not Found", requestLine);
var formatter = new BufferFormatter(1024, FormattingData.InvariantUtf8);
WriteCommonHeaders(formatter, "1.1", "404", "Not Found", false);
formatter.Append(HttpNewline);
return(new HttpServerBuffer(formatter.Buffer, formatter.CommitedByteCount, BufferPool.Shared));
}
static HttpServerBuffer CreateResponseForGetTime(HttpRequestLine request)
{
var formatter = new BufferFormatter(1024, FormattingData.InvariantUtf8);
WriteCommonHeaders(formatter, @"HTTP/1.1 200 OK", request.IsKeepAlive());
formatter.Append(HttpNewline);
formatter.Append(@"<html><head><title>Time</title></head><body>");
formatter.Append(DateTime.UtcNow, 'O');
formatter.Append(@"</body></html>");
return new HttpServerBuffer(formatter.Buffer, formatter.CommitedByteCount, BufferPool.Shared);
}
public T Map(HttpRequestLine requestLine)
{
for (int i = 0; i < count; i++)
{
if (requestLine.RequestUri.Equals(Uris[i]))
{
return(Apis[i]);
}
}
return(default(T));
}
static HttpServerBuffer CreateResponseForGetTime(HttpRequestLine request)
{
var body = string.Format(@"<html><head><title>Time</title></head><body>{0}</body></html>", DateTime.UtcNow.ToString("O"));
var formatter = new BufferFormatter(1024, FormattingData.InvariantUtf8);
WriteCommonHeaders(formatter, "1.1", "200", "Ok", request.IsKeepAlive());
formatter.WriteHttpHeader(new Utf8String("Content-Length"), new Utf8String(body.Length.ToString()));
formatter.EndHttpHeaderSection();
formatter.WriteHttpBody(new Utf8String(body));
return new HttpServerBuffer(formatter.Buffer, formatter.CommitedByteCount, BufferPool.Shared);
}
public static bool TryParseRequestLine(ByteSpan buffer, out HttpRequestLine requestLine, out int totalParsedBytes)
{
requestLine = new HttpRequestLine();
totalParsedBytes = 0;
var reader = new HttpRequestReader();
reader.Buffer = buffer;
requestLine.Method = reader.ReadMethod();
if(requestLine.Method == HttpMethod.Unknown) { return false; }
requestLine.RequestUri = reader.ReadRequestUri();
if(requestLine.RequestUri.Length == 0) { return false; }
requestLine.Version = reader.ReadHttpVersion();
if (requestLine.Version == HttpVersion.Unknown) { return false; }
totalParsedBytes = buffer.Length - reader.Buffer.Length;
return true;
}
public static bool TryParseRequestLine(ByteSpan buffer, out HttpRequestLine requestLine)
{
int parsedBytes;
return TryParseRequestLine(buffer, out requestLine, out parsedBytes);
}
// Not Found
protected virtual HttpServerBuffer CreateResponseFor404(HttpRequestLine requestLine, ByteSpan headersAndBody)
{
Log.LogMessage(Log.Level.Warning, "Request {0}, Response: 404 Not Found", requestLine);
BufferFormatter formatter = new BufferFormatter(1024, FormattingData.InvariantUtf8);
WriteCommonHeaders(formatter, @"HTTP/1.1 404 Not Found");
formatter.Append(HttpNewline);
return new HttpServerBuffer(formatter.Buffer, formatter.CommitedByteCount, BufferPool.Shared);
}
protected abstract HttpServerBuffer CreateResponse(HttpRequestLine requestLine, ByteSpan headersAndBody);
protected virtual void WriteResponseFor404(BufferFormatter formatter, HttpRequestLine requestLine) // Not Found
{
Log.LogMessage(Log.Level.Warning, "Request {0}, Response: 404 Not Found", requestLine);
WriteCommonHeaders(formatter, "1.1", "404", "Not Found", false);
formatter.Append(HttpNewline);
}
public static bool TryParseRequestLine(ReadOnlySpan <byte> buffer, out HttpRequestLine requestLine)
{
int parsedBytes;
return(TryParseRequestLine(buffer, out requestLine, out parsedBytes));
}
public HttpRequest(HttpRequestLine requestLine, HttpHeaders headers, ByteSpan bytes)
{
_requestLine = requestLine;
_headers = headers;
_body = bytes;
}
// TODO: this needs to be smarter
internal static bool IsKeepAlive(this HttpRequestLine request)
{
return((request.Version != HttpVersion.V1_0) && (request.Version != HttpVersion.Unknown));
}
public static bool TryParseRequestLine(ByteSpan buffer, out HttpRequestLine requestLine)
{
int parsedBytes;
return(TryParseRequestLine(buffer, out requestLine, out parsedBytes));
}
protected abstract HttpServerBuffer CreateResponse(HttpRequestLine requestLine, Span <byte> headersAndBody);
