refactor(auth): split IAM module and add access/refresh session flow

internal/iam/cache_redis.go

@@ -0,0 +1,104 @@
+package iam
+
+import (
+	"context"
+	"errors"
+	"time"
+
+	"github.com/redis/go-redis/v9"
+)
+
+type tokenCache struct {
+	client *redis.Client
+}
+
+func newTokenCache(addr, password string, db int) (*tokenCache, error) {
+	if addr == "" {
+		return nil, nil
+	}
+	client := redis.NewClient(&redis.Options{Addr: addr, Password: password, DB: db})
+	ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
+	defer cancel()
+	if err := client.Ping(ctx).Err(); err != nil {
+		return nil, err
+	}
+	return &tokenCache{client: client}, nil
+}
+
+func (c *tokenCache) Close() error {
+	if c == nil || c.client == nil {
+		return nil
+	}
+	return c.client.Close()
+}
+
+func (c *tokenCache) SetSessionActive(ctx context.Context, sid string, ttl time.Duration) error {
+	if c == nil {
+		return nil
+	}
+	return c.client.Set(ctx, "auth:session:"+sid, "active", ttl).Err()
+}
+
+func (c *tokenCache) IsSessionActive(ctx context.Context, sid string) (bool, error) {
+	if c == nil {
+		return false, nil
+	}
+	count, err := c.client.Exists(ctx, "auth:session:"+sid).Result()
+	if err != nil {
+		return false, err
+	}
+	return count == 1, nil
+}
+
+func (c *tokenCache) DeleteSession(ctx context.Context, sid string) error {
+	if c == nil {
+		return nil
+	}
+	return c.client.Del(ctx, "auth:session:"+sid).Err()
+}
+
+func (c *tokenCache) SetRefreshHash(ctx context.Context, rid, tokenHash string, ttl time.Duration) error {
+	if c == nil {
+		return nil
+	}
+	return c.client.Set(ctx, "auth:refresh:"+rid, tokenHash, ttl).Err()
+}
+
+func (c *tokenCache) GetRefreshHash(ctx context.Context, rid string) (string, error) {
+	if c == nil {
+		return "", nil
+	}
+	v, err := c.client.Get(ctx, "auth:refresh:"+rid).Result()
+	if err != nil {
+		if errors.Is(err, redis.Nil) {
+			return "", nil
+		}
+		return "", err
+	}
+	return v, nil
+}
+
+func (c *tokenCache) DeleteRefresh(ctx context.Context, rid string) error {
+	if c == nil {
+		return nil
+	}
+	return c.client.Del(ctx, "auth:refresh:"+rid).Err()
+}
+
+func (c *tokenCache) DenyAccessJTI(ctx context.Context, jti string, ttl time.Duration) error {
+	if c == nil {
+		return nil
+	}
+	return c.client.Set(ctx, "auth:deny:access:"+jti, "1", ttl).Err()
+}
+
+func (c *tokenCache) IsAccessJTIDenied(ctx context.Context, jti string) (bool, error) {
+	if c == nil {
+		return false, nil
+	}
+	count, err := c.client.Exists(ctx, "auth:deny:access:"+jti).Result()
+	if err != nil {
+		return false, err
+	}
+	return count == 1, nil
+}