http3

type CapsuleType uint64

type FrameType uint64

type HTTPStreamer interface {
	HTTPStream() Stream
}

type Hijacker interface {
	StreamCreator() StreamCreator
}

type RoundTripOpt struct {
	// OnlyCachedConn controls whether the RoundTripper may create a new QUIC connection.
	// If set true and no cached connection is available, RoundTripOpt will return ErrNoCachedConn.
	OnlyCachedConn bool
	// DontCloseRequestStream controls whether the request stream is closed after sending the request.
	// If set, context cancellations have no effect after the response headers are received.
	DontCloseRequestStream bool
}

type RoundTripper struct {

	// DisableCompression, if true, prevents the Transport from
	// requesting compression with an "Accept-Encoding: gzip"
	// request header when the Request contains no existing
	// Accept-Encoding value. If the Transport requests gzip on
	// its own and gets a gzipped response, it's transparently
	// decoded in the Response.Body. However, if the user
	// explicitly requested gzip it is not automatically
	// uncompressed.
	DisableCompression bool

	// TLSClientConfig specifies the TLS configuration to use with
	// tls.Client. If nil, the default configuration is used.
	TLSClientConfig *tls.Config

	// QuicConfig is the quic.Config used for dialing new connections.
	// If nil, reasonable default values will be used.
	QuicConfig *quic.Config

	// Enable support for HTTP/3 datagrams.
	// If set to true, QuicConfig.EnableDatagram will be set.
	// See https://www.ietf.org/archive/id/draft-schinazi-masque-h3-datagram-02.html.
	EnableDatagrams bool

	// Additional HTTP/3 settings.
	// It is invalid to specify any settings defined by the HTTP/3 draft and the datagram draft.
	AdditionalSettings map[uint64]uint64

	// When set, this callback is called for the first unknown frame parsed on a bidirectional stream.
	// It is called right after parsing the frame type.
	// If parsing the frame type fails, the error is passed to the callback.
	// In that case, the frame type will not be set.
	// Callers can either ignore the frame and return control of the stream back to HTTP/3
	// (by returning hijacked false).
	// Alternatively, callers can take over the QUIC stream (by returning hijacked true).
	StreamHijacker func(FrameType, quic.Connection, quic.Stream, error) (hijacked bool, err error)

	// When set, this callback is called for unknown unidirectional stream of unknown stream type.
	// If parsing the stream type fails, the error is passed to the callback.
	// In that case, the stream type will not be set.
	UniStreamHijacker func(StreamType, quic.Connection, quic.ReceiveStream, error) (hijacked bool)

	// Dial specifies an optional dial function for creating QUIC
	// connections for requests.
	// If Dial is nil, quic.DialAddrEarlyContext will be used.
	Dial func(ctx context.Context, addr string, tlsCfg *tls.Config, cfg *quic.Config) (quic.EarlyConnection, error)

	// MaxResponseHeaderBytes specifies a limit on how many response bytes are
	// allowed in the server's response header.
	// Zero means to use a default limit.
	MaxResponseHeaderBytes int64
	// contains filtered or unexported fields
}

type Server struct {
	// Addr optionally specifies the UDP address for the server to listen on,
	// in the form "host:port".
	//
	// When used by ListenAndServe and ListenAndServeTLS methods, if empty,
	// ":https" (port 443) is used. See net.Dial for details of the address
	// format.
	//
	// Otherwise, if Port is not set and underlying QUIC listeners do not
	// have valid port numbers, the port part is used in Alt-Svc headers set
	// with SetQuicHeaders.
	Addr string

	// Port is used in Alt-Svc response headers set with SetQuicHeaders. If
	// needed Port can be manually set when the Server is created.
	//
	// This is useful when a Layer 4 firewall is redirecting UDP traffic and
	// clients must use a port different from the port the Server is
	// listening on.
	Port int

	// TLSConfig provides a TLS configuration for use by server. It must be
	// set for ListenAndServe and Serve methods.
	TLSConfig *tls.Config

	// QuicConfig provides the parameters for QUIC connection created with
	// Serve. If nil, it uses reasonable default values.
	//
	// Configured versions are also used in Alt-Svc response header set with
	// SetQuicHeaders.
	QuicConfig *quic.Config

	// Handler is the HTTP request handler to use. If not set, defaults to
	// http.NotFound.
	Handler http.Handler

	// EnableDatagrams enables support for HTTP/3 datagrams.
	// If set to true, QuicConfig.EnableDatagram will be set.
	// See https://datatracker.ietf.org/doc/html/draft-ietf-masque-h3-datagram-07.
	EnableDatagrams bool

	// MaxHeaderBytes controls the maximum number of bytes the server will
	// read parsing the request HEADERS frame. It does not limit the size of
	// the request body. If zero or negative, http.DefaultMaxHeaderBytes is
	// used.
	MaxHeaderBytes int

	// AdditionalSettings specifies additional HTTP/3 settings.
	// It is invalid to specify any settings defined by the HTTP/3 draft and the datagram draft.
	AdditionalSettings map[uint64]uint64

	// StreamHijacker, when set, is called for the first unknown frame parsed on a bidirectional stream.
	// It is called right after parsing the frame type.
	// If parsing the frame type fails, the error is passed to the callback.
	// In that case, the frame type will not be set.
	// Callers can either ignore the frame and return control of the stream back to HTTP/3
	// (by returning hijacked false).
	// Alternatively, callers can take over the QUIC stream (by returning hijacked true).
	StreamHijacker func(FrameType, quic.Connection, quic.Stream, error) (hijacked bool, err error)

	// UniStreamHijacker, when set, is called for unknown unidirectional stream of unknown stream type.
	// If parsing the stream type fails, the error is passed to the callback.
	// In that case, the stream type will not be set.
	UniStreamHijacker func(StreamType, quic.Connection, quic.ReceiveStream, error) (hijacked bool)
	// contains filtered or unexported fields
}

type Stream quic.Stream

type StreamCreator interface {
	// Context returns a context that is cancelled when the underlying connection is closed.
	Context() context.Context
	OpenStream() (quic.Stream, error)
	OpenStreamSync(context.Context) (quic.Stream, error)
	OpenUniStream() (quic.SendStream, error)
	OpenUniStreamSync(context.Context) (quic.SendStream, error)
	LocalAddr() net.Addr
	RemoteAddr() net.Addr
	ConnectionState() quic.ConnectionState
}

type StreamType uint64