feat: 初始化多机器人服务端项目框架
基于Go语言构建多机器人服务端框架，包含配置管理、事件总线、依赖注入等核心模块 添加项目基础结构、README、gitignore和初始代码实现
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244
pkg/net/websocket.go
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244
pkg/net/websocket.go
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package net
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import (
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"context"
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"fmt"
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"net/url"
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"sync"
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"time"
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"cellbot/internal/engine"
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"cellbot/internal/protocol"
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"github.com/fasthttp/websocket"
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"github.com/valyala/fasthttp"
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"go.uber.org/zap"
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)
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// WebSocketManager WebSocket连接管理器
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type WebSocketManager struct {
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connections map[string]*WebSocketConnection
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logger *zap.Logger
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eventBus *engine.EventBus
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mu sync.RWMutex
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upgrader *websocket.FastHTTPUpgrader
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}
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// NewWebSocketManager 创建WebSocket管理器
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func NewWebSocketManager(logger *zap.Logger, eventBus *engine.EventBus) *WebSocketManager {
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return &WebSocketManager{
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connections: make(map[string]*WebSocketConnection),
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logger: logger.Named("websocket"),
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eventBus: eventBus,
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upgrader: &websocket.FastHTTPUpgrader{
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ReadBufferSize: 1024,
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WriteBufferSize: 1024,
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CheckOrigin: func(ctx *fasthttp.RequestCtx) bool {
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return true // 允许所有来源，生产环境应加强检查
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},
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},
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}
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}
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// WebSocketConnection WebSocket连接
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type WebSocketConnection struct {
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ID string
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Conn *websocket.Conn
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BotID string
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Logger *zap.Logger
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ctx context.Context
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cancel context.CancelFunc
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}
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// NewWebSocketConnection 创建WebSocket连接
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func NewWebSocketConnection(conn *websocket.Conn, botID string, logger *zap.Logger) *WebSocketConnection {
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ctx, cancel := context.WithCancel(context.Background())
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connID := generateConnID()
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return &WebSocketConnection{
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ID: connID,
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Conn: conn,
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BotID: botID,
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Logger: logger.With(zap.String("conn_id", connID)),
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ctx: ctx,
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cancel: cancel,
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}
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}
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// UpgradeWebSocket 升级HTTP连接为WebSocket
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func (wsm *WebSocketManager) UpgradeWebSocket(ctx *fasthttp.RequestCtx) (*WebSocketConnection, error) {
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// 获取查询参数
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botID := string(ctx.QueryArgs().Peek("bot_id"))
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if botID == "" {
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return nil, fmt.Errorf("missing bot_id parameter")
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}
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// 创建通道用于传递连接
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connChan := make(chan *websocket.Conn, 1)
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// 升级连接
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err := wsm.upgrader.Upgrade(ctx, func(conn *websocket.Conn) {
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connChan <- conn
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})
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if err != nil {
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return nil, fmt.Errorf("failed to upgrade connection: %w", err)
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}
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// 等待连接在回调中建立
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conn := <-connChan
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// 创建连接对象
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wsConn := NewWebSocketConnection(conn, botID, wsm.logger)
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// 存储连接
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wsm.mu.Lock()
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wsm.connections[wsConn.ID] = wsConn
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wsm.mu.Unlock()
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wsm.logger.Info("WebSocket connection established",
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zap.String("conn_id", wsConn.ID),
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zap.String("bot_id", botID))
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// 启动读取循环
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go wsConn.readLoop(wsm.eventBus)
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return wsConn, nil
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}
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// readLoop 读取循环
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func (wsc *WebSocketConnection) readLoop(eventBus *engine.EventBus) {
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defer wsc.close()
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for {
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select {
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case <-wsc.ctx.Done():
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return
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default:
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messageType, message, err := wsc.Conn.ReadMessage()
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if err != nil {
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wsc.Logger.Error("Failed to read message", zap.Error(err))
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return
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}
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// 处理消息
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wsc.handleMessage(message, eventBus)
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// messageType 可用于区分文本或二进制消息
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}
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}
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}
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// handleMessage 处理消息
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func (wsc *WebSocketConnection) handleMessage(data []byte, eventBus *engine.EventBus) {
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wsc.Logger.Debug("Received message", zap.ByteString("data", data))
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// TODO: 解析消息为Event对象
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// 这里简化实现,实际应该根据协议解析
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event := &protocol.BaseEvent{
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Type: protocol.EventTypeMessage,
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DetailType: "private",
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Timestamp: time.Now().Unix(),
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SelfID: wsc.BotID,
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Data: make(map[string]interface{}),
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}
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// 发布到事件总线
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eventBus.Publish(event)
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}
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// SendMessage 发送消息
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func (wsc *WebSocketConnection) SendMessage(data []byte) error {
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wsc.Logger.Debug("Sending message", zap.ByteString("data", data))
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err := wsc.Conn.WriteMessage(websocket.TextMessage, data)
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if err != nil {
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return fmt.Errorf("failed to send message: %w", err)
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}
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return nil
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}
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// close 关闭连接
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func (wsc *WebSocketConnection) close() {
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wsc.cancel()
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if err := wsc.Conn.Close(); err != nil {
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wsc.Logger.Error("Failed to close connection", zap.Error(err))
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}
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}
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// RemoveConnection 移除连接
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func (wsm *WebSocketManager) RemoveConnection(connID string) {
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wsm.mu.Lock()
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defer wsm.mu.Unlock()
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if conn, ok := wsm.connections[connID]; ok {
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conn.close()
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delete(wsm.connections, connID)
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wsm.logger.Info("WebSocket connection removed", zap.String("conn_id", connID))
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}
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}
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// GetConnection 获取连接
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func (wsm *WebSocketManager) GetConnection(connID string) (*WebSocketConnection, bool) {
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wsm.mu.RLock()
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defer wsm.mu.RUnlock()
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conn, ok := wsm.connections[connID]
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return conn, ok
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}
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// GetConnectionByBotID 根据BotID获取连接
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func (wsm *WebSocketManager) GetConnectionByBotID(botID string) []*WebSocketConnection {
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wsm.mu.RLock()
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defer wsm.mu.RUnlock()
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connections := make([]*WebSocketConnection, 0)
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for _, conn := range wsm.connections {
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if conn.BotID == botID {
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connections = append(connections, conn)
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}
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}
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return connections
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}
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// BroadcastToBot 向指定Bot的所有连接广播消息
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func (wsm *WebSocketManager) BroadcastToBot(botID string, data []byte) {
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connections := wsm.GetConnectionByBotID(botID)
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for _, conn := range connections {
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if err := conn.SendMessage(data); err != nil {
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wsm.logger.Error("Failed to send message to connection",
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zap.String("conn_id", conn.ID),
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zap.Error(err))
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}
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}
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}
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// Dial 建立WebSocket客户端连接
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func (wsm *WebSocketManager) Dial(addr string, botID string) (*WebSocketConnection, error) {
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u, err := url.Parse(addr)
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if err != nil {
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return nil, fmt.Errorf("invalid URL: %w", err)
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}
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conn, _, err := websocket.DefaultDialer.Dial(addr, nil)
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if err != nil {
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return nil, fmt.Errorf("failed to dial: %w", err)
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}
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wsConn := NewWebSocketConnection(conn, botID, wsm.logger)
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wsm.mu.Lock()
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wsm.connections[wsConn.ID] = wsConn
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wsm.mu.Unlock()
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wsm.logger.Info("WebSocket client connected",
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zap.String("conn_id", wsConn.ID),
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zap.String("bot_id", botID),
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zap.String("addr", addr))
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// 启动读取循环
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go wsConn.readLoop(wsm.eventBus)
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return wsConn, nil
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}
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// generateConnID 生成连接ID
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func generateConnID() string {
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return fmt.Sprintf("conn-%d", time.Now().UnixNano())
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}
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