二维码生成时返回图片内容和url

@@ -27,7 +27,7 @@ const Authenticator = function (secret, options) {
      * 验证token有效性
      * @param token
      */
-  this.verify = function(token) {
+    this.verify = function (token) {
         return speakeasy.totp.verify(_.merge({}, TOTP_OPTIONS, {token: token}));
     };
 
@@ -36,7 +36,7 @@ const Authenticator = function (secret, options) {
      * @param token
      * @param window
      */
-  this.verifyDelta = function(token, window) {
+    this.verifyDelta = function (token, window) {
         return speakeasy.totp.verifyDelta(_.merge({}, TOTP_OPTIONS, {token: token, window: window}));
     };
 
@@ -54,10 +54,14 @@ const Authenticator = function (secret, options) {
      * 生成svg的QR图片内容
      * @param label
      * @param issuer
-   * @return {*}
+     * @return {{content: *, url: string}}
      */
-  this.getQR = function(label, issuer) {
-    return qr.imageSync(this.getOtpAuthURL(label, issuer), { type: 'svg' });
+    this.getQR = function (label, issuer) {
+        let url = this.getOtpAuthURL(label, issuer);
+        return {
+            content: qr.imageSync(url, { type: 'svg' }),
+            url: url
+        };
     };
 
     /**

@@ -41,11 +41,12 @@ fs.ensureDir(img_path, function (err, added_root) {
   }
   added_root && console.log(chalk.green(img_path + ' is created'));
 
+  let qr = authenticator.getQR('totp@gitlab.kmlab.com', '通行密钥');
   let fd = fs.openSync(qr, 'w');
-  fs.writeSync(fd, authenticator.getQR('totp@gitlab.kmlab.com', '通行密钥'));
+  fs.writeSync(fd, qr.content);
   fs.closeSync(fd);
 
-  console.log(chalk.green('密钥字符串'), chalk.yellow(authenticator.getOtpAuthURL('totp@gitlab.kmlab.com', '通行密钥')))
+  console.log(chalk.green('密钥字符串'), chalk.yellow(qr.url))
 });
 
 console.log('QR SVG output is', img_path, qr);
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