websocket

package module
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 Go to latest Published: Jan 31, 2024 License: MIT Imports: 21 Imported by: 0

README

Websocket

什么是WebSocket?

WebSocket 协议主要为了解决基于 HTTP/1.x 的 Web 应用无法实现服务端向客户端主动推送的问题, 为了兼容现有的设施, WebSocket 协议使用与 HTTP 协议相同的端口, 并使用 HTTP Upgrade 机制来进行 WebSocket 握手, 当握手完成之后, 通信双方便可以按照 WebSocket 协议的方式进行交互

WebSocket 使用 TCP 作为传输层协议, 与 HTTP 类似, WebSocket 也支持在 TCP 上层引入 TLS 层, 以建立加密数据传输通道, 即 WebSocket over TLS, WebSocket 的 URI 与 HTTP URI 的结构类似, 对于使用 80 端口的 WebSocket over TCP, 其 URI 的一般形式为 ws://host:port/path/query 对于使用 443 端口的 WebSocket over TLS, 其 URI 的一般形式为 wss://host:port/path/query

在 WebSocket 协议中, 帧 (frame) 是通信双方数据传输的基本单元, 与其它网络协议相同, frame 由 Header 和 Payload 两部分构成, frame 有多种类型, frame 的类型由其头部的 Opcode 字段 (将在下面讨论) 来指示, WebSocket 的 frame 可以分为两类, 一类是用于传输控制信息的 frame (如通知对方关闭 WebSocket 连接), 一类是用于传输应用数据的 frame, 使用 WebSocket 协议通信的双方都需要首先进行握手, 只有当握手成功之后才开始使用 frame 传输数据

参考资料

Documentation

Index

Constants

View Source 
const (
	PayloadTypeBinary = 0
	PayloadTypeText   = 1
)
View Source 
const (
	KindWebsocket transport.Kind = "websocket"
)

Variables

This section is empty.

Functions

func LogDebug 

func LogDebug(args ...interface{})

func LogDebugf 

func LogDebugf(format string, args ...interface{})

func LogError 

func LogError(args ...interface{})

func LogErrorf 

func LogErrorf(format string, args ...interface{})

func LogFatal 

func LogFatal(args ...interface{})

func LogFatalf 

func LogFatalf(format string, args ...interface{})

func LogInfo 

func LogInfo(args ...interface{})

func LogInfof 

func LogInfof(format string, args ...interface{})

func LogWarn 

func LogWarn(args ...interface{})

func LogWarnf 

func LogWarnf(format string, args ...interface{})

func Marshal 

func Marshal(codec encoding.Codec, msg Any) ([]byte, error)

func RegisterClientMessageHandler 

func RegisterClientMessageHandler[T any](cli *Client, messageType MessageType, handler func(*T) error)

func RegisterServerMessageHandler 

func RegisterServerMessageHandler[T any](srv *Server, messageType MessageType, handler func(SessionID, *T) error)

func SetOperation 

func SetOperation(ctx context.Context, op string)

SetOperation sets the transport operation.

func Unmarshal 

func Unmarshal(codec encoding.Codec, inputData []byte, outValue interface{}) error

Types

type Any 

type Any interface{}

type BinaryMessage 

type BinaryMessage struct {
	Type MessageType
	Body []byte
}

func (*BinaryMessage) Marshal 

func (m *BinaryMessage) Marshal() ([]byte, error)

func (*BinaryMessage) Unmarshal 

func (m *BinaryMessage) Unmarshal(buf []byte) error

type Binder 

type Binder func() Any

type Client 

type Client struct {
	// contains filtered or unexported fields
}

func NewClient 

func NewClient(opts ...ClientOption) *Client

func (*Client) Connect 

func (c *Client) Connect() error

func (*Client) DeregisterMessageHandler 

func (c *Client) DeregisterMessageHandler(messageType MessageType)

func (*Client) Disconnect 

func (c *Client) Disconnect()

func (*Client) RegisterMessageHandler 

func (c *Client) RegisterMessageHandler(messageType MessageType, handler ClientMessageHandler, binder Binder)

func (*Client) SendMessage 

func (c *Client) SendMessage(messageType MessageType, message interface{}) error

type ClientHandlerData 

type ClientHandlerData struct {
	Handler ClientMessageHandler
	Binder  Binder
}

type ClientMessageHandler 

type ClientMessageHandler func(MessagePayload) error

type ClientMessageHandlerMap 

type ClientMessageHandlerMap map[MessageType]*ClientHandlerData

type ClientOption 

type ClientOption func(o *Client)

func WithClientCodec 

func WithClientCodec(c string) ClientOption

func WithClientPayloadType 

func WithClientPayloadType(payloadType PayloadType) ClientOption

func WithEndpoint 

func WithEndpoint(uri string) ClientOption

type ConnectHandler 

type ConnectHandler func(SessionID, bool)

type HandlerData 

type HandlerData struct {
	Handler MessageHandler
	Binder  Binder
}

type MessageHandler 

type MessageHandler func(SessionID, MessagePayload) error

type MessageHandlerMap 

type MessageHandlerMap map[MessageType]*HandlerData

type MessagePayload 

type MessagePayload Any

type MessageType 

type MessageType uint32

type PayloadType 

type PayloadType uint8

type Server 

type Server struct {
	*http.Server
	// contains filtered or unexported fields
}

func NewServer 

func NewServer(opts ...ServerOption) *Server

func (*Server) Broadcast 

func (s *Server) Broadcast(messageType MessageType, message MessagePayload)

func (*Server) DeregisterMessageHandler 

func (s *Server) DeregisterMessageHandler(messageType MessageType)

func (*Server) Endpoint 

func (s *Server) Endpoint() (*url.URL, error)

func (*Server) Name 

func (s *Server) Name() string

func (*Server) RegisterMessageHandler 

func (s *Server) RegisterMessageHandler(messageType MessageType, handler MessageHandler, binder Binder)

func (*Server) SendMessage 

func (s *Server) SendMessage(sessionId SessionID, messageType MessageType, message MessagePayload)

func (*Server) SessionCount 

func (s *Server) SessionCount() int

func (*Server) Start 

func (s *Server) Start(ctx context.Context) error

func (*Server) Stop 

func (s *Server) Stop(ctx context.Context) error

type ServerOption 

type ServerOption func(o *Server)

func WithAddress 

func WithAddress(addr string) ServerOption

func WithChannelBufferSize 

func WithChannelBufferSize(size int) ServerOption

func WithCodec 

func WithCodec(c string) ServerOption

func WithConnectHandle 

func WithConnectHandle(h ConnectHandler) ServerOption

func WithListener 

func WithListener(lis net.Listener) ServerOption

func WithNetwork 

func WithNetwork(network string) ServerOption

func WithPath 

func WithPath(path string) ServerOption

func WithPayloadType 

func WithPayloadType(payloadType PayloadType) ServerOption

func WithTLSConfig 

func WithTLSConfig(c *tls.Config) ServerOption

func WithTimeout 

func WithTimeout(timeout time.Duration) ServerOption

type Session 

type Session struct {
	// contains filtered or unexported fields
}

func NewSession 

func NewSession(conn *ws.Conn, server *Server) *Session

func (*Session) Close 

func (c *Session) Close()

func (*Session) Conn 

func (c *Session) Conn() *ws.Conn

func (*Session) Listen 

func (c *Session) Listen()

func (*Session) SendMessage 

func (c *Session) SendMessage(message []byte)

func (*Session) SessionID 

func (c *Session) SessionID() SessionID

type SessionID 

type SessionID string

type SessionManager 

type SessionManager struct {
	// contains filtered or unexported fields
}

func NewSessionManager 

func NewSessionManager() *SessionManager

func (*SessionManager) Add 

func (s *SessionManager) Add(c *Session)

func (*SessionManager) Clean 

func (s *SessionManager) Clean()

func (*SessionManager) Count 

func (s *SessionManager) Count() int

func (*SessionManager) Get 

func (s *SessionManager) Get(sessionId SessionID) (*Session, bool)

func (*SessionManager) Range 

func (s *SessionManager) Range(fn func(*Session))

func (*SessionManager) RegisterConnectHandler 

func (s *SessionManager) RegisterConnectHandler(handler ConnectHandler)

func (*SessionManager) Remove 

func (s *SessionManager) Remove(c *Session)

type SessionMap 

type SessionMap map[SessionID]*Session

type TextMessage 

type TextMessage struct {
	Type MessageType `json:"type" xml:"type"`
	Body string      `json:"body" xml:"body"`
}

func (*TextMessage) Marshal 

func (m *TextMessage) Marshal() ([]byte, error)

func (*TextMessage) Unmarshal 

func (m *TextMessage) Unmarshal(buf []byte) error

type Transport 

type Transport struct {
	// contains filtered or unexported fields
}

Transport is a websocket transport.

func (*Transport) Endpoint 

func (tr *Transport) Endpoint() string

Endpoint returns the transport endpoint.

func (*Transport) Kind 

func (tr *Transport) Kind() transport.Kind

Kind returns the transport kind.

func (*Transport) Operation 

func (tr *Transport) Operation() string

Operation returns the transport operation.

func (*Transport) PathTemplate 

func (tr *Transport) PathTemplate() string

PathTemplate returns the http path template.

func (*Transport) ReplyHeader 

func (tr *Transport) ReplyHeader() transport.Header

ReplyHeader returns the reply header.

func (*Transport) Request 

func (tr *Transport) Request() *http.Request

Request returns the HTTP request.

func (*Transport) RequestHeader 

func (tr *Transport) RequestHeader() transport.Header

RequestHeader returns the request header.

type Transporter 

type Transporter interface {
	transport.Transporter
	Request() *http.Request
	PathTemplate() string
}

Source Files

View all Source files

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