/// <summary>
/// Overrides request processing logic.
/// </summary>
/// <param name="stream">The stream.</param>
/// <param name="frame">The request header frame.</param>
/// <returns></returns>
protected override void ProcessRequest(Http2Stream stream, Frame frame)
{
//spec 09
//8.1.3.1. Request Header Fields
//HTTP/2.0 defines a number of header fields starting with a colon ':'
//character that carry information about the request target:
//o The ":method" header field includes the HTTP method ([HTTP-p2],
//Section 4).
//o The ":scheme" header field includes the scheme portion of the
//target URI ([RFC3986], Section 3.1).
//o The ":authority" header field includes the authority portion of
//the target URI ([RFC3986], Section 3.2).
//To ensure that the HTTP/1.1 request line can be reproduced
//accurately, this header field MUST be omitted when translating
//from an HTTP/1.1 request that has a request target in origin or
//asterisk form (see [HTTP-p1], Section 5.3). Clients that generate
//HTTP/2.0 requests directly SHOULD instead omit the "Host" header
//field. An intermediary that converts a request to HTTP/1.1 MUST
//create a "Host" header field if one is not present in a request by
//copying the value of the ":authority" header field.
//o The ":path" header field includes the path and query parts of the
//target URI (the "path-absolute" production from [RFC3986] and
//optionally a '?' character followed by the "query" production, see
//[RFC3986], Section 3.3 and [RFC3986], Section 3.4). This field
//MUST NOT be empty; URIs that do not contain a path component MUST
//include a value of '/', unless the request is an OPTIONS in
//asterisk form, in which case the ":path" header field MUST include
//'*'.
//All HTTP/2.0 requests MUST include exactly one valid value for all of
//these header fields, unless this is a CONNECT request (Section 8.3).
//An HTTP request that omits mandatory header fields is malformed
//(Section 8.1.3.5).
//Header field names that contain a colon are only valid in the
//HTTP/2.0 context. These are not HTTP header fields. Implementations
//MUST NOT generate header fields that start with a colon, but they
//MUST ignore any header field that starts with a colon. In
//particular, header fields with names starting with a colon MUST NOT
//be exposed as HTTP header fields.
if (stream.Headers.GetValue(CommonHeaders.Method) == null
|| stream.Headers.GetValue(CommonHeaders.Path) == null
|| stream.Headers.GetValue(CommonHeaders.Scheme) == null
|| stream.Headers.GetValue(CommonHeaders.Authority) == null)
{
stream.WriteRst(ResetStatusCode.ProtocolError);
stream.Dispose(ResetStatusCode.ProtocolError);
return;
}
Task.Factory.StartNew(async () =>
{
try
{
var context = new Http2OwinMessageContext(stream);
var contextEnv = context.OwinContext.Environment;
PushFunc pushDelegate = null;
pushDelegate = async pairs =>
{
var promisedStream = CreateStream();
//assume that we have already received endStream
promisedStream.EndStreamReceived = true;
stream.WritePushPromise(pairs, promisedStream.Id);
var headers = new HeadersList(pairs);
promisedStream.Headers.AddRange(headers);
var http2MsgCtx = new Http2OwinMessageContext(promisedStream);
var http2PushCtx = http2MsgCtx.OwinContext;
http2PushCtx.Set(CommonOwinKeys.ServerPushFunc, pushDelegate);
//pass add info from parent to child context. This info can store
//reference table for example or something els that should be passed from
//client request into child push requests.
if (contextEnv.ContainsKey(CommonOwinKeys.AdditionalInfo))
http2PushCtx.Set(CommonOwinKeys.AdditionalInfo, contextEnv[CommonOwinKeys.AdditionalInfo]);
await _next(http2PushCtx);
http2MsgCtx.FinishResponse();
};
context.OwinContext.Set(CommonOwinKeys.ServerPushFunc, pushDelegate);
context.OwinContext.Set(CommonOwinKeys.EnableServerPush, _isPushEnabled);
await _next(context.OwinContext);
context.FinishResponse();
}
catch (Exception ex)
{
EndResponse(stream, ex);
}
});
}
/// <summary>
/// Overrides request processing logic.
/// </summary>
/// <param name="stream">The stream.</param>
/// <param name="frame">The request header frame.</param>
/// <returns></returns>
protected override void ProcessRequest(Http2Stream stream, Frame frame)
{
/* 12 -> 8.1.3.1
All HTTP/2 requests MUST include exactly one valid value for the
":method", ":scheme", and ":path" header fields, unless this is a
CONNECT request (Section 8.3). An HTTP request that omits mandatory
header fields is malformed (Section 8.1.3.5). */
if (stream.Headers.GetValue(CommonHeaders.Method) == null
|| stream.Headers.GetValue(CommonHeaders.Path) == null
|| stream.Headers.GetValue(CommonHeaders.Scheme) == null)
{
stream.WriteRst(ResetStatusCode.ProtocolError);
stream.Close(ResetStatusCode.ProtocolError);
return;
}
Task.Factory.StartNew(async () =>
{
try
{
var context = new Http2OwinMessageContext(stream);
var contextEnv = context.OwinContext.Environment;
PushFunc pushDelegate = null;
pushDelegate = async pairs =>
{
var promisedStream = CreateStream();
//assume that we have already received endStream
promisedStream.HalfClosedLocal = true;
stream.WritePushPromise(pairs, promisedStream.Id);
var headers = new HeadersList(pairs);
promisedStream.Headers.AddRange(headers);
var http2MsgCtx = new Http2OwinMessageContext(promisedStream);
var http2PushCtx = http2MsgCtx.OwinContext;
http2PushCtx.Set(CommonOwinKeys.ServerPushFunc, pushDelegate);
//pass add info from parent to child context. This info can store
//reference table for example or something els that should be passed from
//client request into child push requests.
if (contextEnv.ContainsKey(CommonOwinKeys.AdditionalInfo))
http2PushCtx.Set(CommonOwinKeys.AdditionalInfo, contextEnv[CommonOwinKeys.AdditionalInfo]);
await _next(http2PushCtx);
http2MsgCtx.FinishResponse();
};
context.OwinContext.Set(CommonOwinKeys.ServerPushFunc, pushDelegate);
context.OwinContext.Set(CommonOwinKeys.EnableServerPush, _isPushEnabled);
await _next(context.OwinContext);
context.FinishResponse();
}
catch (Exception ex)
{
EndResponse(stream, ex);
}
});
}
