http3

package
v3.49.1 Latest Latest
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 Go to latest Published: Dec 25, 2024 License: MIT Imports: 29 Imported by: 0

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Index

Constants

View Source 
const (
	// MethodGet0RTT allows a GET request to be sent using 0-RTT.
	// Note that 0-RTT doesn't provide replay protection and should only be used for idempotent requests.
	MethodGet0RTT = "GET_0RTT"
	// MethodHead0RTT allows a HEAD request to be sent using 0-RTT.
	// Note that 0-RTT doesn't provide replay protection and should only be used for idempotent requests.
	MethodHead0RTT = "HEAD_0RTT"
)
View Source 
const (
	VersionUnknown quic.Version = math.MaxUint32

	Version1 quic.Version = 0x1
	Version2 quic.Version = 0x6b3343cf
)

The version numbers, making grepping easier

View Source 
const NextProtoH3 = "h3"

NextProtoH3 is the ALPN protocol negotiated during the TLS handshake, for QUIC v1 and v2.

Variables

View Source 
var ErrNoCachedConn = errors.New("http3: no cached connection was available")

ErrNoCachedConn is returned when RoundTripper.OnlyCachedConn is set

View Source 
var SupportedVersions = []quic.Version{Version1, Version2}

SupportedVersions lists the versions that the server supports must be in sorted descending order

Functions

This section is empty.

Types

type Connection added in v3.46.0 

type Connection interface {
	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
	CloseWithError(quic.ApplicationErrorCode, string) error
	Context() context.Context
	ConnectionState() quic.ConnectionState

	// ReceivedSettings returns a channel that is closed once the client's SETTINGS frame was received.
	ReceivedSettings() <-chan struct{}
	// Settings returns the settings received on this connection.
	Settings() *Settings
}

Connection is an HTTP/3 connection. It has all methods from the quic.Connection expect for AcceptStream, AcceptUniStream, SendDatagram and ReceiveDatagram.

type ErrCode added in v3.42.3 

type ErrCode quic.ApplicationErrorCode
const (
	ErrCodeNoError              ErrCode = 0x100
	ErrCodeGeneralProtocolError ErrCode = 0x101
	ErrCodeInternalError        ErrCode = 0x102
	ErrCodeStreamCreationError  ErrCode = 0x103
	ErrCodeClosedCriticalStream ErrCode = 0x104
	ErrCodeFrameUnexpected      ErrCode = 0x105
	ErrCodeFrameError           ErrCode = 0x106
	ErrCodeExcessiveLoad        ErrCode = 0x107
	ErrCodeIDError              ErrCode = 0x108
	ErrCodeSettingsError        ErrCode = 0x109
	ErrCodeMissingSettings      ErrCode = 0x10a
	ErrCodeRequestRejected      ErrCode = 0x10b
	ErrCodeRequestCanceled      ErrCode = 0x10c
	ErrCodeRequestIncomplete    ErrCode = 0x10d
	ErrCodeMessageError         ErrCode = 0x10e
	ErrCodeConnectError         ErrCode = 0x10f
	ErrCodeVersionFallback      ErrCode = 0x110
	ErrCodeDatagramError        ErrCode = 0x33
)

func (ErrCode) String added in v3.42.3 

func (e ErrCode) String() string

type Error added in v3.42.3 

type Error struct {
	Remote       bool
	ErrorCode    ErrCode
	ErrorMessage string
}

Error is returned from the round tripper (for HTTP clients) and inside the HTTP handler (for HTTP servers) if an HTTP/3 error occurs. See section 8 of RFC 9114.

func (*Error) Error added in v3.42.3 

func (e *Error) Error() string

type FrameType 

type FrameType uint64

FrameType is the frame type of a HTTP/3 frame

type Hijacker 

type Hijacker interface {
	Connection() Connection
}

A Hijacker allows hijacking of the stream creating part of a quic.Session from a http.Response.Body. It is used by WebTransport to create WebTransport streams after a session has been established.

type Perspective added in v3.46.0 

type Perspective int

Perspective determines if we're acting as a server or a client 

const (
	PerspectiveServer Perspective = 1
	PerspectiveClient Perspective = 2
)

the perspectives

func (Perspective) Opposite added in v3.46.0 

func (p Perspective) Opposite() Perspective

Opposite returns the perspective of the peer

func (Perspective) String added in v3.46.0 

func (p Perspective) String() string

type RequestStream added in v3.46.0 

type RequestStream interface {
	Stream

	// SendRequestHeader sends the HTTP request.
	// It is invalid to call it more than once.
	// It is invalid to call it after Write has been called.
	SendRequestHeader(req *http.Request) error

	// ReadResponse reads the HTTP response from the stream.
	// It is invalid to call it more than once.
	// It doesn't set Response.Request and Response.TLS.
	// It is invalid to call it after Read has been called.
	ReadResponse() (*http.Response, error)
}

A RequestStream is an HTTP/3 request stream. When writing to and reading from the stream, data is framed in HTTP/3 DATA frames.

type RoundTripOpt 

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
}

RoundTripOpt are options for the Transport.RoundTripOpt method.

type RoundTripper 

type RoundTripper struct {
	*transport.Options

	// 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

	// Dial specifies an optional dial function for creating QUIC
	// connections for requests.
	// If Dial is nil, a UDPConn will be created at the first request
	// and will be reused for subsequent connections to other servers.
	Dial func(ctx context.Context, addr string, tlsCfg *tls.Config, cfg *quic.Config) (quic.EarlyConnection, error)

	// Enable support for HTTP/3 datagrams (RFC 9297).
	// If a QUICConfig is set, datagram support also needs to be enabled on the QUIC layer by setting EnableDatagrams.
	EnableDatagrams bool

	// Additional HTTP/3 settings.
	// It is invalid to specify any settings defined by RFC 9114 (HTTP/3) and RFC 9297 (HTTP Datagrams).
	AdditionalSettings map[uint64]uint64
	// contains filtered or unexported fields
}

RoundTripper implements the http.RoundTripper interface

func (*RoundTripper) AddConn 

func (r *RoundTripper) AddConn(ctx context.Context, addr string) error

AddConn add a http3 connection, dial new conn if not exists.

func (*RoundTripper) Close 

func (r *RoundTripper) Close() error

Close closes the QUIC connections that this RoundTripper has used. It also closes the underlying UDPConn if it is not nil.

func (*RoundTripper) CloseIdleConnections added in v3.35.1 

func (r *RoundTripper) CloseIdleConnections()

func (*RoundTripper) RoundTrip 

func (r *RoundTripper) RoundTrip(req *http.Request) (*http.Response, error)

RoundTrip does a round trip.

func (*RoundTripper) RoundTripOnlyCachedConn 

func (r *RoundTripper) RoundTripOnlyCachedConn(req *http.Request) (*http.Response, error)

RoundTripOnlyCachedConn round trip only cached conn.

func (*RoundTripper) RoundTripOpt 

func (r *RoundTripper) RoundTripOpt(req *http.Request, opt RoundTripOpt) (*http.Response, error)

RoundTripOpt is like RoundTrip, but takes options.

type ServerStreamType added in v3.46.0 

type ServerStreamType uint64

StreamType is the stream type of a unidirectional stream.

type Settings added in v3.46.0 

type Settings struct {
	// Support for HTTP/3 datagrams (RFC 9297)
	EnableDatagrams bool
	// Extended CONNECT, RFC 9220
	EnableExtendedConnect bool
	// Other settings, defined by the application
	Other map[uint64]uint64
}

Settings are HTTP/3 settings that apply to the underlying connection.

type SingleDestinationRoundTripper added in v3.46.0 

type SingleDestinationRoundTripper struct {
	*transport.Options

	Connection quic.Connection

	// Enable support for HTTP/3 datagrams (RFC 9297).
	// If a QUICConfig is set, datagram support also needs to be enabled on the QUIC layer by setting EnableDatagrams.
	EnableDatagrams bool

	// Additional HTTP/3 settings.
	// It is invalid to specify any settings defined by RFC 9114 (HTTP/3) and RFC 9297 (HTTP Datagrams).
	AdditionalSettings map[uint64]uint64
	StreamHijacker     func(FrameType, quic.ConnectionTracingID, quic.Stream, error) (hijacked bool, err error)
	UniStreamHijacker  func(ServerStreamType, quic.ConnectionTracingID, quic.ReceiveStream, error) (hijacked bool)
	// contains filtered or unexported fields
}

SingleDestinationRoundTripper is an HTTP/3 client doing requests to a single remote server.

func (*SingleDestinationRoundTripper) OpenRequestStream added in v3.46.0 

func (c *SingleDestinationRoundTripper) OpenRequestStream(ctx context.Context) (RequestStream, error)

func (*SingleDestinationRoundTripper) RoundTrip added in v3.46.0 

func (c *SingleDestinationRoundTripper) RoundTrip(req *http.Request) (*http.Response, error)

RoundTrip executes a request and returns a response

func (*SingleDestinationRoundTripper) Start added in v3.46.0 

func (c *SingleDestinationRoundTripper) Start() Connection

type Stream 

type Stream interface {
	quic.Stream

	SendDatagram([]byte) error
	ReceiveDatagram(context.Context) ([]byte, error)
}

A Stream is an HTTP/3 request stream. When writing to and reading from the stream, data is framed in HTTP/3 DATA frames.

type StreamID added in v3.46.0 

type StreamID int64

A StreamID in QUIC 

const InvalidStreamID StreamID = -1

InvalidPacketNumber is a stream ID that is invalid. The first valid stream ID in QUIC is 0.

func (StreamID) InitiatedBy added in v3.46.0 

func (s StreamID) InitiatedBy() Perspective

InitiatedBy says if the stream was initiated by the client or by the server

func (StreamID) StreamNum added in v3.46.0 

func (s StreamID) StreamNum() StreamNum

StreamNum returns how many streams in total are below this Example: for stream 9 it returns 3 (i.e. streams 1, 5 and 9)

func (StreamID) Type added in v3.46.0 

func (s StreamID) Type() StreamType

Type says if this is a unidirectional or bidirectional stream

type StreamNum added in v3.46.0 

type StreamNum int64

StreamNum is the stream number 

const (
	// InvalidStreamNum is an invalid stream number.
	InvalidStreamNum = -1
	// MaxStreamCount is the maximum stream count value that can be sent in MAX_STREAMS frames
	// and as the stream count in the transport parameters
	MaxStreamCount StreamNum = 1 << 60
)

func (StreamNum) StreamID added in v3.46.0 

func (s StreamNum) StreamID(stype StreamType, pers Perspective) StreamID

StreamID calculates the stream ID.

type StreamType 

type StreamType uint8

StreamType encodes if this is a unidirectional or bidirectional stream 

const (
	// StreamTypeUni is a unidirectional stream
	StreamTypeUni StreamType = iota
	// StreamTypeBidi is a bidirectional stream
	StreamTypeBidi
)

Source Files

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