feat(live): 按用户名禁言、后台右侧管控栏、前台抖音式布局与禁言 Toast

Made-with: Cursor

server/pkg/weblive/moderation.go

@@ -3,6 +3,7 @@ package weblive
 import (
 	"fmt"
 	"sort"
+	"strings"
 	"sync"
 	"sync/atomic"
 	"time"
@@ -10,18 +11,20 @@ import (
 
 var (
 	modMu     sync.RWMutex
-	muteAll   bool
-	mutedIP   = make(map[string]bool)
-	ipWindow  = make(map[string][]int64) // 每个 IP 最近窗口内的发送时间戳(ms)
+	muteAll    bool
+	mutedIP    = make(map[string]bool)
+	mutedUsers = make(map[string]bool) // key: normMuteUsername
+	ipWindow   = make(map[string][]int64) // 每个 IP 最近窗口内的发送时间戳(ms)
 	onlineMap = make(map[string]*onlineSession)
 	seq       uint64
 )
 
 type ModerationSnapshot struct {
-	MuteAll   bool           `json:"mute_all"`
-	MutedIPs  []string       `json:"muted_ips"`
-	OnlineIPs []IPOnlineItem `json:"online_ips"`
-	OnlineUsers []OnlineUserItem `json:"online_users"`
+	MuteAll          bool             `json:"mute_all"`
+	MutedIPs         []string         `json:"muted_ips"`
+	MutedUsernames   []string         `json:"muted_usernames"`
+	OnlineIPs        []IPOnlineItem   `json:"online_ips"`
+	OnlineUsers      []OnlineUserItem `json:"online_users"`
 	RateLimit struct {
 		WindowMs int `json:"window_ms"`
 		MaxHits  int `json:"max_hits"`
@@ -73,6 +76,25 @@ func SetIPMuted(ip string, enabled bool) {
 	modMu.Unlock()
 }
 
+func normMuteUsername(u string) string {
+	return strings.ToLower(strings.TrimSpace(u))
+}
+
+// SetUserMuted 按登录用户名禁言（弹幕/礼物）；与 IP 禁言、全体禁言叠加。
+func SetUserMuted(username string, enabled bool) {
+	key := normMuteUsername(username)
+	if key == "" {
+		return
+	}
+	modMu.Lock()
+	if enabled {
+		mutedUsers[key] = true
+	} else {
+		delete(mutedUsers, key)
+	}
+	modMu.Unlock()
+}
+
 const (
 	ipSendWindowMs = 3000
 	ipSendMaxHits  = 10
@@ -93,6 +115,22 @@ func IsMutedForIP(ip string) bool {
 	return mutedIP[ip]
 }
 
+// IsMutedForSend 发弹幕/礼物前：全体禁言、IP 禁言、或已登录用户名被禁。
+func IsMutedForSend(ip, username string) bool {
+	modMu.RLock()
+	defer modMu.RUnlock()
+	if muteAll {
+		return true
+	}
+	if mutedIP[ip] {
+		return true
+	}
+	if k := normMuteUsername(username); k != "" && mutedUsers[k] {
+		return true
+	}
+	return false
+}
+
 func ModerationStateSnapshot() ModerationSnapshot {
 	modMu.RLock()
 	muteAllNow := muteAll
@@ -100,8 +138,13 @@ func ModerationStateSnapshot() ModerationSnapshot {
 	for ip := range mutedIP {
 		muted = append(muted, ip)
 	}
+	mutedNames := make([]string, 0, len(mutedUsers))
+	for u := range mutedUsers {
+		mutedNames = append(mutedNames, u)
+	}
 	modMu.RUnlock()
 	sort.Strings(muted)
+	sort.Strings(mutedNames)
 
 	counts := onlineIPCountsLocked()
 	online := make([]IPOnlineItem, 0, len(counts))
@@ -215,7 +258,7 @@ func onlineUsersLocked() []OnlineUserItem {
 			ConnectedAt: s.Connected.Format(time.RFC3339),
 			OnlineSec:   int64(now.Sub(s.Connected).Seconds()),
 			IdleSec:     int64(now.Sub(s.LastAt).Seconds()),
-			Muted:       mutedIP[s.IP] || muteAll,
+			Muted:       IsMutedForSend(s.IP, s.Username),
 		})
 	}
 	sort.Slice(out, func(i, j int) bool {