feat: complete 2.0.7.12 platform overhaul

server/unified-management/internal/web/public_snapshot.go

@@ -28,6 +28,8 @@ type publicSnapshotService struct {
 	entries map[string]publicSnapshotEntry
 }
 
+const maxPublicSnapshotEntries = 64
+
 func newPublicSnapshotService(ttl time.Duration) *publicSnapshotService {
 	return &publicSnapshotService{ttl: ttl, entries: map[string]publicSnapshotEntry{}}
 }
@@ -39,6 +41,22 @@ func (s *publicSnapshotService) Get(key string, build func(generatedAt time.Time
 	if entry, ok := s.entries[key]; ok && now.Before(entry.expiresAt) {
 		return entry.snapshot
 	}
+	for entryKey, entry := range s.entries {
+		if !now.Before(entry.expiresAt) {
+			delete(s.entries, entryKey)
+		}
+	}
+	if len(s.entries) >= maxPublicSnapshotEntries {
+		oldestKey := ""
+		var oldestExpiry time.Time
+		for entryKey, entry := range s.entries {
+			if oldestKey == "" || entry.expiresAt.Before(oldestExpiry) {
+				oldestKey = entryKey
+				oldestExpiry = entry.expiresAt
+			}
+		}
+		delete(s.entries, oldestKey)
+	}
 
 	payload := build(now)
 	data, err := json.Marshal(payload)