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internal/oss/qiniu/bucket.go

@@ -99,6 +99,55 @@ func (c *Client) GetBucketDomains(ctx context.Context) ([]string, error) {
 	return domains, nil
 }
 
+// GetBucketRegion 查询桶的真实区域
+// API: POST https://uc.qbox.me/v2/buckets → 遍历匹配桶名获取 region
+func (c *Client) GetBucketRegion(ctx context.Context) (string, error) {
+	// 使用 UC API 获取所有桶列表（含 region）
+	req, err := http.NewRequestWithContext(ctx, "POST", "https://uc.qbox.me/v2/buckets", nil)
+	if err != nil {
+		return "", oss.NewError("BUCKET_ERROR", "failed to create request", err)
+	}
+
+	path := "/v2/buckets"
+	host := "uc.qbox.me"
+	authToken := c.generateAuthTokenWithQuery("POST", path, "", host, "application/x-www-form-urlencoded", nil)
+	req.Header.Set("Host", host)
+	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+	req.Header.Set("Authorization", authToken)
+
+	resp, err := c.httpClient.Do(req)
+	if err != nil {
+		return "", oss.NewError("BUCKET_ERROR", "failed to query bucket region", err)
+	}
+	defer resp.Body.Close()
+
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return "", oss.NewError("BUCKET_ERROR", "failed to read response", err)
+	}
+
+	if resp.StatusCode != 200 {
+		return "", oss.NewError("BUCKET_ERROR",
+			fmt.Sprintf("query bucket region failed with status %d: %s", resp.StatusCode, string(body)), nil)
+	}
+
+	var buckets []struct {
+		ID     string `json:"id"`
+		Region string `json:"region"`
+	}
+	if err := json.Unmarshal(body, &buckets); err != nil {
+		return "", oss.NewError("BUCKET_ERROR", "failed to parse response", err)
+	}
+
+	for _, b := range buckets {
+		if b.ID == c.config.Bucket {
+			return b.Region, nil
+		}
+	}
+
+	return "", oss.NewError("BUCKET_ERROR", fmt.Sprintf("bucket %s not found in account", c.config.Bucket), nil)
+}
+
 // SetBucketAccess 设置空间访问权限（公开/私有）
 // 根据: https://developer.qiniu.com/kodo/api/3946/set-bucket-private
 //