Commit

1 files changed, 13 insertions, 0 deletions

diff --git a/src/node_modules/validator/es/lib/isBase64.js b/src/node_modules/validator/es/lib/isBase64.js
new file mode 100644
index 0000000..de9e4e3
--- /dev/null
+++ b/src/node_modules/validator/es/lib/isBase64.js
@@ -0,0 +1,13 @@
+import assertString from './util/assertString';
+var notBase64 = /[^A-Z0-9+\/=]/i;
+export default function isBase64(str) {
+  assertString(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] === '=';
+}
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