76 lines
2.0 KiB
Go
76 lines
2.0 KiB
Go
package repository
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import (
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"context"
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"encoding/json"
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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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fingerprintKeyPrefix = "fingerprint:"
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fingerprintTTL = 7 * 24 * time.Hour // 7天，配合每24小时懒续期可保持活跃账号永不过期
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maskedSessionKeyPrefix = "masked_session:"
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maskedSessionTTL = 15 * time.Minute
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)
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// fingerprintKey generates the Redis key for account fingerprint cache.
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func fingerprintKey(accountID int64) string {
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return fmt.Sprintf("%s%d", fingerprintKeyPrefix, accountID)
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}
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// maskedSessionKey generates the Redis key for masked session ID cache.
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func maskedSessionKey(accountID int64) string {
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return fmt.Sprintf("%s%d", maskedSessionKeyPrefix, accountID)
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}
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type identityCache struct {
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rdb *redis.Client
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}
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func NewIdentityCache(rdb *redis.Client) service.IdentityCache {
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return &identityCache{rdb: rdb}
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}
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func (c *identityCache) GetFingerprint(ctx context.Context, accountID int64) (*service.Fingerprint, error) {
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key := fingerprintKey(accountID)
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val, err := c.rdb.Get(ctx, key).Result()
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if err != nil {
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return nil, err
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}
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var fp service.Fingerprint
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if err := json.Unmarshal([]byte(val), &fp); err != nil {
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return nil, err
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}
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return &fp, nil
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}
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func (c *identityCache) SetFingerprint(ctx context.Context, accountID int64, fp *service.Fingerprint) error {
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key := fingerprintKey(accountID)
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val, err := json.Marshal(fp)
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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, key, val, fingerprintTTL).Err()
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}
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func (c *identityCache) GetMaskedSessionID(ctx context.Context, accountID int64) (string, error) {
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key := maskedSessionKey(accountID)
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val, err := c.rdb.Get(ctx, key).Result()
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if err != nil {
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if err == redis.Nil {
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return "", nil
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}
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return "", err
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}
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return val, nil
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}
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func (c *identityCache) SetMaskedSessionID(ctx context.Context, accountID int64, sessionID string) error {
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key := maskedSessionKey(accountID)
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return c.rdb.Set(ctx, key, sessionID, maskedSessionTTL).Err()
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}
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