127 lines
3.6 KiB
Go
127 lines
3.6 KiB
Go
package websocket
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import (
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"context"
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"fmt"
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"net/http"
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"schisandra-album-cloud-microservices/common/jwt"
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"time"
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"github.com/lxzan/gws"
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"github.com/zeromicro/go-zero/core/logx"
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"schisandra-album-cloud-microservices/app/auth/api/internal/svc"
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)
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type MessageWebsocketLogic struct {
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logx.Logger
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ctx context.Context
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svcCtx *svc.ServiceContext
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}
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func NewMessageWebsocketLogic(ctx context.Context, svcCtx *svc.ServiceContext) *MessageWebsocketLogic {
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return &MessageWebsocketLogic{
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Logger: logx.WithContext(ctx),
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ctx: ctx,
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svcCtx: svcCtx,
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}
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}
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type MessageWebSocket struct {
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ctx context.Context
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gws.BuiltinEventHandler
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sessions *gws.ConcurrentMap[string, *gws.Conn] // 使用内置的ConcurrentMap存储连接, 可以减少锁冲突
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}
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var MessageWebSocketHandler = NewMessageWebSocket()
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func (l *MessageWebsocketLogic) MessageWebsocket(w http.ResponseWriter, r *http.Request) {
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token := r.Header.Get("Sec-Websocket-Protocol")
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accessToken, res := jwt.ParseAccessToken(l.svcCtx.Config.Auth.AccessSecret, token)
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if !res {
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return
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}
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upgrader := gws.NewUpgrader(MessageWebSocketHandler, &gws.ServerOption{
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HandshakeTimeout: 5 * time.Second, // 握手超时时间
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ReadBufferSize: 1024, // 读缓冲区大小
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ParallelEnabled: true, // 开启并行消息处理
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Recovery: gws.Recovery, // 开启异常恢复
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CheckUtf8Enabled: false, // 关闭UTF8校验
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PermessageDeflate: gws.PermessageDeflate{
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Enabled: true, // 开启压缩
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},
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Authorize: func(r *http.Request, session gws.SessionStorage) bool {
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var clientId = r.URL.Query().Get("user_id")
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if clientId == "" {
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return false
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}
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if accessToken.UserID != clientId {
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return false
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}
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//token := r.URL.Query().Get("token")
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//if token == "" {
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// return false
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//}
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//accessToken, res := jwt.ParseAccessToken(l.svcCtx.Config.Auth.AccessSecret, token)
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//if !res || accessToken.UserID != clientId {
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// return false
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//}
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session.Store("user_id", clientId)
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return true
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},
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SubProtocols: []string{token},
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})
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socket, err := upgrader.Upgrade(w, r)
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if err != nil {
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panic(err)
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}
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go func() {
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socket.ReadLoop()
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}()
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}
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// NewMessageWebSocket 创建WebSocket实例
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func NewMessageWebSocket() *MessageWebSocket {
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return &MessageWebSocket{
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ctx: context.Background(),
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sessions: gws.NewConcurrentMap[string, *gws.Conn](64, 128),
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}
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}
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// OnOpen 连接建立
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func (c *MessageWebSocket) OnOpen(socket *gws.Conn) {
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clientId := MustLoad[string](socket.Session(), "user_id")
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c.sessions.Store(clientId, socket)
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// 订阅该用户的频道
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fmt.Printf("websocket client %s connected\n", clientId)
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}
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// OnClose 关闭连接
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func (c *MessageWebSocket) OnClose(socket *gws.Conn, err error) {
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name := MustLoad[string](socket.Session(), "user_id")
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sharding := c.sessions.GetSharding(name)
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c.sessions.Delete(name)
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sharding.Lock()
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defer sharding.Unlock()
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fmt.Printf("websocket closed, name=%s, msg=%s\n", name, err.Error())
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}
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// OnPing 处理客户端的Ping消息
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func (c *MessageWebSocket) OnPing(socket *gws.Conn, payload []byte) {
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_ = socket.SetDeadline(time.Now().Add(PingInterval + HeartbeatWaitTimeout))
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_ = socket.WritePong(payload)
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}
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// OnPong 处理客户端的Pong消息
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func (c *MessageWebSocket) OnPong(_ *gws.Conn, _ []byte) {}
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// OnMessage 接受消息
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func (c *MessageWebSocket) OnMessage(socket *gws.Conn, message *gws.Message) {
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defer message.Close()
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clientId := MustLoad[string](socket.Session(), "user_id")
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if conn, ok := c.sessions.Load(clientId); ok {
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_ = conn.WriteMessage(gws.OpcodeText, message.Bytes())
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}
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// fmt.Printf("received message from client %s\n", message.Data)
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}
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