feat: multi-module iteration

server/dukang-api/src/integrations/courier/xiaofeixia/xiaofeixia.sign.ts

@@ -0,0 +1,28 @@
+import { createHash, createHmac } from 'crypto';
+import type { XiaofeixiaSignType } from '../courier.config';
+
+type SignParams = Record<string, string | number | undefined | null>;
+
+function isEmpty(value: unknown): boolean {
+  return value === undefined || value === null || value === '';
+}
+
+/** 按 ASCII 字典序拼接并生成签名 */
+export function buildXiaofeixiaSign(
+  params: SignParams,
+  apiKey: string,
+  signType: XiaofeixiaSignType = 'MD5',
+): string {
+  const sortedKeys = Object.keys(params)
+    .filter((key) => key !== 'sign' && !isEmpty(params[key]))
+    .sort();
+
+  const stringA = sortedKeys.map((key) => `${key}=${params[key]}`).join('&');
+  const stringSignTemp = `${stringA}&key=${apiKey}`;
+
+  if (signType === 'HMAC-SHA256') {
+    return createHmac('sha256', apiKey).update(stringSignTemp).digest('hex').toUpperCase();
+  }
+
+  return createHash('md5').update(stringSignTemp).digest('hex').toUpperCase();
+}