Update on custom HTTP2 SETTINGS

transport.go

@@ -295,23 +295,14 @@ type Transport struct {
 
 	hasCustomInitialSettings bool
 
-	// MaxHeaderListSize is the http2 SETTINGS_MAX_HEADER_LIST_SIZE to
-	// send in the initial settings frame. It is how many bytes
-	// of response headers are allowed. Unlike the http2 spec, zero here
-	// means to use a default limit (currently 10MB). If you actually
-	// want to advertise an unlimited value to the peer, Transport
-	// interprets the highest possible value here (0xffffffff or 1<<32-1)
-	// to mean no limit.
-	MaxHeaderListSize uint32
+	// SETTINGS Frame
+	hasCustomHeaderTableSize bool
+	hasCustomEnablePush bool
+	hasCustomInitialWindowSize bool
+	hasCustomMaxConcurrentStreams bool
+	hasCustomMaxFrameSize bool
+	hasCustomMaxHeaderListSize bool
 
-	// MaxReadFrameSize is the http2 SETTINGS_MAX_FRAME_SIZE to send in the
-	// initial settings frame. It is the size in bytes of the largest frame
-	// payload that the sender is willing to receive. If 0, no setting is
-	// sent, and the value is provided by the peer, which should be 16384
-	// according to the spec:
-	// https://datatracker.ietf.org/doc/html/rfc7540#section-6.5.2.
-	// Values are bounded in the range 16k to 16M.
-	MaxFrameSize uint32
 
 	// MaxDecoderHeaderTableSize optionally specifies the http2
 	// SETTINGS_HEADER_TABLE_SIZE to send in the initial settings frame. It
@@ -320,17 +311,44 @@ type Transport struct {
 	// of 4096 is used.
 	HeaderTableSize uint32
 
+
 	// MaxDecoderHeaderTableSize optionally specifies the http2
 	// SETTINGS_ENABLE_PUSH to send in the initial settings frame.
 	EnablePush uint32
 
-	// MaxDecoderHeaderTableSize optionally specifies the http2
-	// SETTINGS_MAX_CONCURRENT_STREAMS to send in the initial settings frame.
-	MaxConcurrentStreams uint32
 
 	// MaxDecoderHeaderTableSize optionally specifies the http2
 	// SETTINGS_INITIAL_WINDOW_SIZE to send in the initial settings frame.
 	InitialWindowSize uint32
+
+
+	// MaxDecoderHeaderTableSize optionally specifies the http2
+	// SETTINGS_MAX_CONCURRENT_STREAMS to send in the initial settings frame.
+	MaxConcurrentStreams uint32
+
+
+	// MaxReadFrameSize is the http2 SETTINGS_MAX_FRAME_SIZE to send in the
+	// initial settings frame. It is the size in bytes of the largest frame
+	// payload that the sender is willing to receive. If 0, no setting is
+	// sent, and the value is provided by the peer, which should be 16384
+	// according to the spec:
+	// https://datatracker.ietf.org/doc/html/rfc7540#section-6.5.2.
+	// Values are bounded in the range 16k to 16M.
+	MaxFrameSize uint32
+
+
+	// MaxHeaderListSize is the http2 SETTINGS_MAX_HEADER_LIST_SIZE to
+	// send in the initial settings frame. It is how many bytes
+	// of response headers are allowed. Unlike the http2 spec, zero here
+	// means to use a default limit (currently 10MB). If you actually
+	// want to advertise an unlimited value to the peer, Transport
+	// interprets the highest possible value here (0xffffffff or 1<<32-1)
+	// to mean no limit.
+	MaxHeaderListSize uint32
+
+
+	// WINDOW_UPDATE Frame
+	WindowSizeIncrement uint32
 }
 
 // A cancelKey is the key of the reqCanceler map.
@@ -340,8 +358,15 @@ type cancelKey struct {
 	req *Request
 }
 
-func (t *Transport) EnableCustomInitialSettings() {
+func (t *Transport) EnableCustomInitialSettings(ts bool, ep bool, ws bool, cs bool, fs bool, hs bool, iv uint32) {
 	t.hasCustomInitialSettings = true
+	t.hasCustomHeaderTableSize = ts
+	t.hasCustomEnablePush = ep
+	t.hasCustomInitialWindowSize = ws
+	t.hasCustomMaxConcurrentStreams = cs
+	t.hasCustomMaxFrameSize = fs
+	t.hasCustomMaxHeaderListSize = hs
+	t.WindowSizeIncrement = iv
 }
 
 func (t *Transport) writeBufferSize() int {