security: stop tracking env files; admin gate via VITE_SITE_ADMIN_GATE; Redis/cache/docs

Remove InfoGenie-frontend and Go .env from version control; add .env.example templates; ignore .claude local settings. Admin UI reads site gate from env only. Note: rotate secrets if repo history was ever public.

Made-with: Cursor

infogenie-backend-go/internal/cache/redis.go

@@ -0,0 +1,119 @@
+package cache
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"log"
+	"time"
+
+	"github.com/redis/go-redis/v9"
+
+	"infogenie-backend/config"
+)
+
+// Key suffixes（完整 key = KeyPrefix + suffix）
+const (
+	KeySite60sDisabled     = "site:60s-disabled"
+	KeySite60sSource       = "site:60s-source"
+	KeySiteAIModelDisabled = "site:ai-model-disabled"
+)
+
+func KeySiteFeatureClicks(section string) string {
+	return "site:feature-clicks:" + section
+}
+
+var (
+	rdb          *redis.Client
+	keyPrefix    string
+	siteCacheTTL time.Duration
+	redisOn      bool
+)
+
+// Init 在 REDIS_ENABLED 时连接并 Ping；未启用时为空操作
+func Init(rc config.RedisConfig) error {
+	if !rc.Enabled {
+		redisOn = false
+		rdb = nil
+		return nil
+	}
+	redisOn = true
+	keyPrefix = rc.KeyPrefix
+	siteCacheTTL = rc.SiteTTL
+	if siteCacheTTL <= 0 {
+		siteCacheTTL = 60 * time.Second
+	}
+	rdb = redis.NewClient(&redis.Options{
+		Addr:     rc.Addr,
+		Password: rc.Password,
+		DB:       rc.DB,
+	})
+	if err := rdb.Ping(context.Background()).Err(); err != nil {
+		return fmt.Errorf("redis: %w", err)
+	}
+	return nil
+}
+
+// Enabled 表示已初始化且客户端可用
+func Enabled() bool {
+	return redisOn && rdb != nil
+}
+
+func fullKey(suffix string) string {
+	return keyPrefix + suffix
+}
+
+// GetJSON 命中返回 true；未启用或未命中返回 false（err 仅表示 Redis/JSON 异常）
+func GetJSON(ctx context.Context, suffix string, dest interface{}) (bool, error) {
+	if !Enabled() {
+		return false, nil
+	}
+	val, err := rdb.Get(ctx, fullKey(suffix)).Bytes()
+	if err == redis.Nil {
+		return false, nil
+	}
+	if err != nil {
+		return false, err
+	}
+	if err := json.Unmarshal(val, dest); err != nil {
+		return false, err
+	}
+	return true, nil
+}
+
+// SetJSON ttl<=0 时使用配置的 SiteTTL
+func SetJSON(ctx context.Context, suffix string, v interface{}, ttl time.Duration) error {
+	if !Enabled() {
+		return nil
+	}
+	b, err := json.Marshal(v)
+	if err != nil {
+		return err
+	}
+	if ttl <= 0 {
+		ttl = siteCacheTTL
+	}
+	return rdb.Set(ctx, fullKey(suffix), b, ttl).Err()
+}
+
+// Delete 删除若干后缀对应的 key；失败仅打日志
+func Delete(ctx context.Context, suffixes ...string) {
+	if !Enabled() || len(suffixes) == 0 {
+		return
+	}
+	keys := make([]string, 0, len(suffixes))
+	for _, s := range suffixes {
+		keys = append(keys, fullKey(s))
+	}
+	if err := rdb.Del(ctx, keys...).Err(); err != nil {
+		log.Printf("redis DEL 失败: %v keys=%v", err, keys)
+	}
+}
+
+// Ping 未启用时返回 nil
+func Ping(ctx context.Context) error {
+	if !Enabled() {
+		return nil
+	}
+	return rdb.Ping(ctx).Err()
+}