直播：铺满画面与黑屏重播、弹幕礼物与全站特效、礼物列表与 WebRTC nudge

Made-with: Cursor

server/pkg/weblive/danmaku.go

@@ -15,6 +15,23 @@ import (
 
 const maxDanmakuRunes = 120
 
+var allowedGifts = map[string]struct{}{
+	"rocket":     {},
+	"sports_car": {},
+	"plane":      {},
+	"carnival":   {},
+	"rose":       {},
+	"heart":      {},
+	"star":       {},
+	"clap":       {},
+	"cake":       {},
+	"crown":      {},
+	"fireworks":  {},
+	"gift_box":   {},
+	"beer":       {},
+	"mic":        {},
+}
+
 var (
 	danmakuClientsMu sync.Mutex
 	danmakuClients   = make(map[*websocket.Conn]struct{})
@@ -28,7 +45,19 @@ func writeDanmakuJSON(ws *websocket.Conn, v any) error {
 	return ws.WriteMessage(websocket.TextMessage, b)
 }
 
-// handleDanmakuWS 弹幕：收 JSON {"text":"..."}；未带有效 token 仅可收广播不可发。广播 {"type":"dm","text","from","ts"}，不落库
+func clipDanmakuText(t string) string {
+	t = strings.TrimSpace(t)
+	if t == "" {
+		return ""
+	}
+	if utf8.RuneCountInString(t) <= maxDanmakuRunes {
+		return t
+	}
+	runes := []rune(t)
+	return string(runes[:maxDanmakuRunes])
+}
+
+// handleDanmakuWS 弹幕 / 礼物：未带有效 token 仅可收广播。礼物 JSON {"type":"gift","gift":"rocket"}；弹幕 {"text":"..."}
 func handleDanmakuWS(c *gin.Context) {
 	claims, tokenOK := handlers.ParseSiteClaims(c.Query("token"))
 	canSend := tokenOK
@@ -66,11 +95,41 @@ func handleDanmakuWS(c *gin.Context) {
 			_ = writeDanmakuJSON(ws, map[string]interface{}{
 				"type":    "error",
 				"code":    "login_required",
-				"message": "请先登录或注册后再发弹幕",
+				"message": "请先登录或注册后再发弹幕或礼物",
 			})
 			continue
 		}
-		text := extractDanmakuText(payload)
+		var envelope struct {
+			Type string `json:"type"`
+			Text string `json:"text"`
+			Gift string `json:"gift"`
+		}
+		if err := json.Unmarshal(payload, &envelope); err != nil {
+			continue
+		}
+		if strings.EqualFold(strings.TrimSpace(envelope.Type), "gift") {
+			gid := strings.TrimSpace(envelope.Gift)
+			if _, ok := allowedGifts[gid]; !ok {
+				_ = writeDanmakuJSON(ws, map[string]interface{}{
+					"type":    "error",
+					"code":    "bad_gift",
+					"message": "无效的礼物",
+				})
+				continue
+			}
+			out, err := json.Marshal(map[string]interface{}{
+				"type": "gift",
+				"gift": gid,
+				"from": fromDisplay,
+				"ts":   time.Now().UnixMilli(),
+			})
+			if err != nil {
+				continue
+			}
+			danmakuBroadcast(out)
+			continue
+		}
+		text := clipDanmakuText(envelope.Text)
 		if text == "" {
 			continue
 		}
@@ -87,24 +146,6 @@ func handleDanmakuWS(c *gin.Context) {
 	}
 }
 
-func extractDanmakuText(payload []byte) string {
-	var v struct {
-		Text string `json:"text"`
-	}
-	if err := json.Unmarshal(payload, &v); err != nil {
-		return ""
-	}
-	t := strings.TrimSpace(v.Text)
-	if t == "" {
-		return ""
-	}
-	if utf8.RuneCountInString(t) <= maxDanmakuRunes {
-		return t
-	}
-	runes := []rune(t)
-	return string(runes[:maxDanmakuRunes])
-}
-
 func danmakuBroadcast(b []byte) {
 	danmakuClientsMu.Lock()
 	defer danmakuClientsMu.Unlock()