the relay server for openai websocket is ready

api/handler/admin/redeem_handler.go

@@ -146,19 +146,15 @@ func (h *RedeemHandler) Set(c *gin.Context) {
 }
 
 func (h *RedeemHandler) Remove(c *gin.Context) {
-	var data struct {
-		Id uint
-	}
-	if err := c.ShouldBindJSON(&data); err != nil {
+	id := h.GetInt(c, "id", 0)
+	if id <= 0 {
 		resp.ERROR(c, types.InvalidArgs)
 		return
 	}
-	if data.Id > 0 {
-		err := h.DB.Where("id", data.Id).Delete(&model.Redeem{}).Error
-		if err != nil {
-			resp.ERROR(c, err.Error())
-			return
-		}
+	err := h.DB.Where("id", id).Delete(&model.Redeem{}).Error
+	if err != nil {
+		resp.ERROR(c, err.Error())
+		return
 	}
 	resp.SUCCESS(c)
 }

api/handler/realtime_handler.go

@@ -1,10 +1,15 @@
 package handler
 
 import (
+	"fmt"
+	"geekai/core"
+	"geekai/store/model"
 	"github.com/gin-gonic/gin"
 	"github.com/gorilla/websocket"
-	"log"
+	"gorm.io/gorm"
 	"net/http"
+	"strings"
+	"time"
 )
 
 // * +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
@@ -14,28 +19,34 @@ import (
 // * @Author yangjian102621@163.com
 // * +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 
-// 实时 API 中继器
+// OpenAI Realtime API Relay Server
 
 type RealtimeHandler struct {
 	BaseHandler
 }
 
-func NewRealtimeHandler() *RealtimeHandler {
-	return &RealtimeHandler{}
+func NewRealtimeHandler(server *core.AppServer, db *gorm.DB) *RealtimeHandler {
+	return &RealtimeHandler{BaseHandler{App: server, DB: db}}
 }
 
 func (h *RealtimeHandler) Connection(c *gin.Context) {
 	// 获取客户端请求中指定的子协议
 	clientProtocols := c.GetHeader("Sec-WebSocket-Protocol")
-	logger.Info(clientProtocols)
+	md := c.Query("model")
 
-	// 升级HTTP连接为WebSocket，并传入客户端请求的子协议
-	upgrader := websocket.Upgrader{
-		CheckOrigin:  func(r *http.Request) bool { return true },
-		Subprotocols: []string{clientProtocols},
+	userId := h.GetLoginUserId(c)
+	var user model.User
+	if err := h.DB.Where("id", userId).First(&user).Error; err != nil {
+		c.Abort()
+		return
 	}
 
-	ws, err := upgrader.Upgrade(c.Writer, c.Request, nil)
+	// 将 HTTP 协议升级为 Websocket 协议
+	subProtocols := strings.Split(clientProtocols, ",")
+	ws, err := (&websocket.Upgrader{
+		CheckOrigin:  func(r *http.Request) bool { return true },
+		Subprotocols: subProtocols,
+	}).Upgrade(c.Writer, c.Request, nil)
 	if err != nil {
 		logger.Error(err)
 		c.Abort()
@@ -43,29 +54,46 @@ func (h *RealtimeHandler) Connection(c *gin.Context) {
 	}
 	defer ws.Close()
 
+	// 目前只针对 VIP 用户可以访问
+	if !user.Vip {
+		sendError(ws, "当前功能只针对 VIP 用户开放")
+		c.Abort()
+		return
+	}
+
+	var apiKey model.ApiKey
+	h.DB.Where("type", "realtime").Where("enabled", true).Order("last_used_at ASC").First(&apiKey)
+	if apiKey.Id == 0 {
+		sendError(ws, "管理员未配置 Realtime API KEY")
+		c.Abort()
+		return
+	}
+
+	apiURL := fmt.Sprintf("%s/v1/realtime?model=%s", apiKey.ApiURL, md)
 	// 连接到真实的后端服务器，传入相同的子协议
 	headers := http.Header{}
+	// 修正子协议内容
+	subProtocols[1] = "openai-insecure-api-key." + apiKey.Value
 	if clientProtocols != "" {
-		headers.Set("Sec-WebSocket-Protocol", clientProtocols)
+		headers.Set("Sec-WebSocket-Protocol", strings.Join(subProtocols, ","))
 	}
-	for key, values := range headers {
-		for _, value := range values {
-			logger.Infof("%s: %s", key, value)
-		}
-	}
-	backendConn, _, err := websocket.DefaultDialer.Dial("wss://api.geekai.pro/v1/realtime?model=gpt-4o-realtime-preview-2024-10-01", headers)
+	backendConn, _, err := websocket.DefaultDialer.Dial(apiURL, headers)
 	if err != nil {
-		log.Printf("Failed to connect to backend: %v", err)
+		sendError(ws, "桥接后端 API 失败："+err.Error())
+		c.Abort()
 		return
 	}
 	defer backendConn.Close()
 
-	//logger.Info(ws.Subprotocol(), ",", backendConn.Subprotocol())
-	//// 确保协议一致性，如果失败返回
-	//if ws.Subprotocol() != backendConn.Subprotocol() {
-	//	log.Println("Subprotocol mismatch")
-	//	return
-	//}
+	// 确保协议一致性，如果失败返回
+	if ws.Subprotocol() != backendConn.Subprotocol() {
+		sendError(ws, "Websocket 子协议不匹配")
+		c.Abort()
+		return
+	}
+
+	// 更新API KEY 最后使用时间
+	h.DB.Model(&model.ApiKey{}).Where("id", apiKey.Id).UpdateColumn("last_used_at", time.Now().Unix())
 
 	// 开始双向转发
 	errorChan := make(chan error, 2)
@@ -73,8 +101,8 @@ func (h *RealtimeHandler) Connection(c *gin.Context) {
 	go relay(backendConn, ws, errorChan)
 
 	// 等待其中一个连接关闭
-	<-errorChan
-	log.Println("Relay ended")
+	err = <-errorChan
+	logger.Infof("Relay ended: %v", err)
 }
 
 func relay(src, dst *websocket.Conn, errorChan chan error) {
@@ -92,82 +120,9 @@ func relay(src, dst *websocket.Conn, errorChan chan error) {
 	}
 }
 
-//func (h *RealtimeHandler) handleMessage(client *RealtimeClient, message []byte) {
-//	var event Event
-//	err := json.Unmarshal(message, &event)
-//	if err != nil {
-//		logger.Infof("Error parsing event from client: %s", message)
-//		return
-//	}
-//	logger.Infof("Relaying %q to OpenAI", event.Type)
-//	client.Send(event)
-//}
-//
-//func relay(src, dst *websocket.Conn, errorChan chan error) {
-//	for {
-//		messageType, message, err := src.ReadMessage()
-//		if err != nil {
-//			errorChan <- err
-//			return
-//		}
-//		err = dst.WriteMessage(messageType, message)
-//		if err != nil {
-//			errorChan <- err
-//			return
-//		}
-//	}
-//}
-//
-//func NewRealtimeClient(apiKey string) *RealtimeClient {
-//	return &RealtimeClient{
-//		APIKey: apiKey,
-//		send:   make(chan Event, 100),
-//	}
-//}
-//
-//func (rc *RealtimeClient) Connect() error {
-//	u := url.URL{Scheme: "wss", Host: "api.geekai.pro", Path: "v1/realtime", RawQuery: "model=gpt-4o-realtime-preview-2024-10-01"}
-//	c, _, err := websocket.DefaultDialer.Dial(u.String(), nil)
-//	if err != nil {
-//		return err
-//	}
-//	rc.conn = c
-//
-//	go rc.readPump()
-//	go rc.writePump()
-//
-//	return nil
-//}
-//
-//func (rc *RealtimeClient) readPump() {
-//	defer rc.conn.Close()
-//	for {
-//		_, message, err := rc.conn.ReadMessage()
-//		if err != nil {
-//			log.Println("read error:", err)
-//			return
-//		}
-//		var event Event
-//		err = json.Unmarshal(message, &event)
-//		if err != nil {
-//			log.Println("parse error:", err)
-//			continue
-//		}
-//		rc.send <- event
-//	}
-//}
-//
-//func (rc *RealtimeClient) writePump() {
-//	defer rc.conn.Close()
-//	for event := range rc.send {
-//		err := rc.conn.WriteJSON(event)
-//		if err != nil {
-//			log.Println("write error:", err)
-//			return
-//		}
-//	}
-//}
-//
-//func (rc *RealtimeClient) Send(event Event) {
-//	rc.send <- event
-//}
+func sendError(ws *websocket.Conn, message string) {
+	err := ws.WriteJSON(map[string]string{"event_id": "event_01", "type": "error", "error": message})
+	if err != nil {
+		logger.Error(err)
+	}
+}

api/handler/ws_handler.go

@@ -18,6 +18,7 @@ import (
 	"github.com/gorilla/websocket"
 	"gorm.io/gorm"
 	"net/http"
+	"strings"
 )
 
 // Websocket 连接处理 handler
@@ -37,7 +38,11 @@ func NewWebsocketHandler(app *core.AppServer, s *service.WebsocketService, db *g
 }
 
 func (h *WebsocketHandler) Client(c *gin.Context) {
-	ws, err := (&websocket.Upgrader{CheckOrigin: func(r *http.Request) bool { return true }}).Upgrade(c.Writer, c.Request, nil)
+	clientProtocols := c.GetHeader("Sec-WebSocket-Protocol")
+	ws, err := (&websocket.Upgrader{
+		CheckOrigin:  func(r *http.Request) bool { return true },
+		Subprotocols: strings.Split(clientProtocols, ","),
+	}).Upgrade(c.Writer, c.Request, nil)
 	if err != nil {
 		logger.Error(err)
 		c.Abort()