refactor: token cache logic

common/crypto.go

@@ -1,6 +1,23 @@
 package common
 
-import "golang.org/x/crypto/bcrypt"
+import (
+	"crypto/hmac"
+	"crypto/sha256"
+	"encoding/hex"
+	"golang.org/x/crypto/bcrypt"
+)
+
+func GenerateHMACWithKey(key []byte, data string) string {
+	h := hmac.New(sha256.New, key)
+	h.Write([]byte(data))
+	return hex.EncodeToString(h.Sum(nil))
+}
+
+func GenerateHMAC(data string) string {
+	h := hmac.New(sha256.New, []byte(SessionSecret))
+	h.Write([]byte(data))
+	return hex.EncodeToString(h.Sum(nil))
+}
 
 func Password2Hash(password string) (string, error) {
 	passwordBytes := []byte(password)

common/redis.go

@@ -2,11 +2,15 @@ package common
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"os"
+	"reflect"
+	"strconv"
 	"time"
 
 	"github.com/go-redis/redis/v8"
+	"gorm.io/gorm"
 )
 
 var RDB *redis.Client
@@ -58,39 +62,167 @@ func RedisGet(key string) (string, error) {
 	return RDB.Get(ctx, key).Result()
 }
 
-func RedisExpire(key string, expiration time.Duration) error {
-	ctx := context.Background()
-	return RDB.Expire(ctx, key, expiration).Err()
-}
-
-func RedisGetEx(key string, expiration time.Duration) (string, error) {
-	ctx := context.Background()
-	return RDB.GetSet(ctx, key, expiration).Result()
-}
+//func RedisExpire(key string, expiration time.Duration) error {
+//	ctx := context.Background()
+//	return RDB.Expire(ctx, key, expiration).Err()
+//}
+//
+//func RedisGetEx(key string, expiration time.Duration) (string, error) {
+//	ctx := context.Background()
+//	return RDB.GetSet(ctx, key, expiration).Result()
+//}
 
 func RedisDel(key string) error {
 	ctx := context.Background()
 	return RDB.Del(ctx, key).Err()
 }
 
-func RedisDecrease(key string, value int64) error {
+func RedisHDelObj(key string) error {
+	ctx := context.Background()
+	return RDB.HDel(ctx, key).Err()
+}
 
+func RedisHSetObj(key string, obj interface{}, expiration time.Duration) error {
+	ctx := context.Background()
+
+	data := make(map[string]interface{})
+
+	// 使用反射遍历结构体字段
+	v := reflect.ValueOf(obj).Elem()
+	t := v.Type()
+	for i := 0; i < v.NumField(); i++ {
+		field := t.Field(i)
+		value := v.Field(i)
+
+		// Skip DeletedAt field
+		if field.Type.String() == "gorm.DeletedAt" {
+			continue
+		}
+
+		// 处理指针类型
+		if value.Kind() == reflect.Ptr {
+			if value.IsNil() {
+				data[field.Name] = ""
+				continue
+			}
+			value = value.Elem()
+		}
+
+		// 处理布尔类型
+		if value.Kind() == reflect.Bool {
+			data[field.Name] = strconv.FormatBool(value.Bool())
+			continue
+		}
+
+		// 其他类型直接转换为字符串
+		data[field.Name] = fmt.Sprintf("%v", value.Interface())
+	}
+
+	txn := RDB.TxPipeline()
+	txn.HSet(ctx, key, data)
+	txn.Expire(ctx, key, expiration)
+
+	_, err := txn.Exec(ctx)
+	if err != nil {
+		return fmt.Errorf("failed to execute transaction: %w", err)
+	}
+	return nil
+}
+
+func RedisHGetObj(key string, obj interface{}) error {
+	ctx := context.Background()
+
+	result, err := RDB.HGetAll(ctx, key).Result()
+	if err != nil {
+		return fmt.Errorf("failed to load hash from Redis: %w", err)
+	}
+
+	if len(result) == 0 {
+		return fmt.Errorf("key %s not found in Redis", key)
+	}
+
+	// Handle both pointer and non-pointer values
+	val := reflect.ValueOf(obj)
+	if val.Kind() != reflect.Ptr {
+		return fmt.Errorf("obj must be a pointer to a struct, got %T", obj)
+	}
+
+	v := val.Elem()
+	if v.Kind() != reflect.Struct {
+		return fmt.Errorf("obj must be a pointer to a struct, got pointer to %T", v.Interface())
+	}
+
+	t := v.Type()
+	for i := 0; i < v.NumField(); i++ {
+		field := t.Field(i)
+		fieldName := field.Name
+		if value, ok := result[fieldName]; ok {
+			fieldValue := v.Field(i)
+
+			// Handle pointer types
+			if fieldValue.Kind() == reflect.Ptr {
+				if value == "" {
+					continue
+				}
+				if fieldValue.IsNil() {
+					fieldValue.Set(reflect.New(fieldValue.Type().Elem()))
+				}
+				fieldValue = fieldValue.Elem()
+			}
+
+			// Enhanced type handling for Token struct
+			switch fieldValue.Kind() {
+			case reflect.String:
+				fieldValue.SetString(value)
+			case reflect.Int, reflect.Int64:
+				intValue, err := strconv.ParseInt(value, 10, 64)
+				if err != nil {
+					return fmt.Errorf("failed to parse int field %s: %w", fieldName, err)
+				}
+				fieldValue.SetInt(intValue)
+			case reflect.Bool:
+				boolValue, err := strconv.ParseBool(value)
+				if err != nil {
+					return fmt.Errorf("failed to parse bool field %s: %w", fieldName, err)
+				}
+				fieldValue.SetBool(boolValue)
+			case reflect.Struct:
+				// Special handling for gorm.DeletedAt
+				if fieldValue.Type().String() == "gorm.DeletedAt" {
+					if value != "" {
+						timeValue, err := time.Parse(time.RFC3339, value)
+						if err != nil {
+							return fmt.Errorf("failed to parse DeletedAt field %s: %w", fieldName, err)
+						}
+						fieldValue.Set(reflect.ValueOf(gorm.DeletedAt{Time: timeValue, Valid: true}))
+					}
+				}
+			default:
+				return fmt.Errorf("unsupported field type: %s for field %s", fieldValue.Kind(), fieldName)
+			}
+		}
+	}
+
+	return nil
+}
+
+// RedisIncr Add this function to handle atomic increments
+func RedisIncr(key string, delta int64) error {
 	// 检查键的剩余生存时间
 	ttlCmd := RDB.TTL(context.Background(), key)
 	ttl, err := ttlCmd.Result()
-	if err != nil {
-		// 失败则尝试直接减少
-		return RDB.DecrBy(context.Background(), key, value).Err()
+	if err != nil && !errors.Is(err, redis.Nil) {
+		return fmt.Errorf("failed to get TTL: %w", err)
 	}
 
-	// 如果剩余生存时间大于0，则进行减少操作
+	// 只有在 key 存在且有 TTL 时才需要特殊处理
 	if ttl > 0 {
 		ctx := context.Background()
 		// 开始一个Redis事务
 		txn := RDB.TxPipeline()
 
 		// 减少余额
-		decrCmd := txn.DecrBy(ctx, key, value)
+		decrCmd := txn.IncrBy(ctx, key, delta)
 		if err := decrCmd.Err(); err != nil {
 			return err // 如果减少失败，则直接返回错误
 		}
@@ -101,26 +233,54 @@ func RedisDecrease(key string, value int64) error {
 		// 执行事务
 		_, err = txn.Exec(ctx)
 		return err
-	} else {
-		_ = RedisDel(key)
 	}
 	return nil
 }
 
-// RedisIncr Add this function to handle atomic increments
-func RedisIncr(key string, delta int) error {
-	ctx := context.Background()
+func RedisHIncrBy(key, field string, delta int64) error {
+	ttlCmd := RDB.TTL(context.Background(), key)
+	ttl, err := ttlCmd.Result()
+	if err != nil && !errors.Is(err, redis.Nil) {
+		return fmt.Errorf("failed to get TTL: %w", err)
+	}
 
-	// 检查键是否存在
-	exists, err := RDB.Exists(ctx, key).Result()
-	if err != nil {
+	if ttl > 0 {
+		ctx := context.Background()
+		txn := RDB.TxPipeline()
+
+		incrCmd := txn.HIncrBy(ctx, key, field, delta)
+		if err := incrCmd.Err(); err != nil {
+			return err
+		}
+
+		txn.Expire(ctx, key, ttl)
+
+		_, err = txn.Exec(ctx)
 		return err
 	}
-	if exists == 0 {
-		return fmt.Errorf("key does not exist") // 键不存在，返回错误
+	return nil
+}
+
+func RedisHSetField(key, field string, value interface{}) error {
+	ttlCmd := RDB.TTL(context.Background(), key)
+	ttl, err := ttlCmd.Result()
+	if err != nil && !errors.Is(err, redis.Nil) {
+		return fmt.Errorf("failed to get TTL: %w", err)
 	}
 
-	// 键存在，执行INCRBY操作
-	result := RDB.IncrBy(ctx, key, int64(delta))
-	return result.Err()
+	if ttl > 0 {
+		ctx := context.Background()
+		txn := RDB.TxPipeline()
+
+		hsetCmd := txn.HSet(ctx, key, field, value)
+		if err := hsetCmd.Err(); err != nil {
+			return err
+		}
+
+		txn.Expire(ctx, key, ttl)
+
+		_, err = txn.Exec(ctx)
+		return err
+	}
+	return nil
 }