Current Dev State

static/js/ketcher2/node_modules/validator/lib/isBase64.js

@@ -0,0 +1,25 @@
+'use strict';
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = isBase64;
+
+var _assertString = require('./util/assertString');
+
+var _assertString2 = _interopRequireDefault(_assertString);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var notBase64 = /[^A-Z0-9+\/=]/i;
+
+function isBase64(str) {
+  (0, _assertString2.default)(str);
+  var len = str.length;
+  if (!len || len % 4 !== 0 || notBase64.test(str)) {
+    return false;
+  }
+  var firstPaddingChar = str.indexOf('=');
+  return firstPaddingChar === -1 || firstPaddingChar === len - 1 || firstPaddingChar === len - 2 && str[len - 1] === '=';
+}
+module.exports = exports['default'];