44a93c1922
增加 L1/L2 缓存、负缓存与单飞回源 使用 key+owner 轻量查询替代全量加载并清理旧接口 补充缓存失效与余额更新测试，修复随机抖动 lint 测试: make test
94 lines
2.4 KiB
Go
94 lines
2.4 KiB
Go
package repository
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import (
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"context"
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"encoding/json"
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"errors"
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"fmt"
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"time"
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"github.com/Wei-Shaw/sub2api/internal/service"
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"github.com/redis/go-redis/v9"
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)
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const (
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apiKeyRateLimitKeyPrefix = "apikey:ratelimit:"
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apiKeyRateLimitDuration = 24 * time.Hour
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apiKeyAuthCachePrefix = "apikey:auth:"
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)
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// apiKeyRateLimitKey generates the Redis key for API key creation rate limiting.
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func apiKeyRateLimitKey(userID int64) string {
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return fmt.Sprintf("%s%d", apiKeyRateLimitKeyPrefix, userID)
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}
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func apiKeyAuthCacheKey(key string) string {
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return fmt.Sprintf("%s%s", apiKeyAuthCachePrefix, key)
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}
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type apiKeyCache struct {
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rdb *redis.Client
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}
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func NewAPIKeyCache(rdb *redis.Client) service.APIKeyCache {
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return &apiKeyCache{rdb: rdb}
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}
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func (c *apiKeyCache) GetCreateAttemptCount(ctx context.Context, userID int64) (int, error) {
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key := apiKeyRateLimitKey(userID)
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count, err := c.rdb.Get(ctx, key).Int()
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if errors.Is(err, redis.Nil) {
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return 0, nil
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}
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return count, err
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}
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func (c *apiKeyCache) IncrementCreateAttemptCount(ctx context.Context, userID int64) error {
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key := apiKeyRateLimitKey(userID)
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pipe := c.rdb.Pipeline()
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pipe.Incr(ctx, key)
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pipe.Expire(ctx, key, apiKeyRateLimitDuration)
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_, err := pipe.Exec(ctx)
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return err
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}
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func (c *apiKeyCache) DeleteCreateAttemptCount(ctx context.Context, userID int64) error {
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key := apiKeyRateLimitKey(userID)
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return c.rdb.Del(ctx, key).Err()
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}
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func (c *apiKeyCache) IncrementDailyUsage(ctx context.Context, apiKey string) error {
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return c.rdb.Incr(ctx, apiKey).Err()
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}
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func (c *apiKeyCache) SetDailyUsageExpiry(ctx context.Context, apiKey string, ttl time.Duration) error {
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return c.rdb.Expire(ctx, apiKey, ttl).Err()
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}
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func (c *apiKeyCache) GetAuthCache(ctx context.Context, key string) (*service.APIKeyAuthCacheEntry, error) {
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val, err := c.rdb.Get(ctx, apiKeyAuthCacheKey(key)).Bytes()
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if err != nil {
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return nil, err
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}
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var entry service.APIKeyAuthCacheEntry
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if err := json.Unmarshal(val, &entry); err != nil {
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return nil, err
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}
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return &entry, nil
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}
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func (c *apiKeyCache) SetAuthCache(ctx context.Context, key string, entry *service.APIKeyAuthCacheEntry, ttl time.Duration) error {
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if entry == nil {
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return nil
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}
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payload, err := json.Marshal(entry)
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if err != nil {
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return err
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}
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return c.rdb.Set(ctx, apiKeyAuthCacheKey(key), payload, ttl).Err()
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}
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func (c *apiKeyCache) DeleteAuthCache(ctx context.Context, key string) error {
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return c.rdb.Del(ctx, apiKeyAuthCacheKey(key)).Err()
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}
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