init source

node_modules/validator/lib/isBase64.js

@@ -0,0 +1,27 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = isBase64;
+
+var _assertString = _interopRequireDefault(require("./util/assertString"));
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+var notBase64 = /[^A-Z0-9+\/=]/i;
+
+function isBase64(str) {
+  (0, _assertString.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;
+module.exports.default = exports.default;