summaryrefslogtreecommitdiff
path: root/src/node_modules/validator/lib/isBase64.js
diff options
context:
space:
mode:
authorMinteck <contact@minteck.org>2021-12-21 16:52:28 +0100
committerMinteck <contact@minteck.org>2021-12-21 16:52:28 +0100
commit46e43f4bde4a35785b4997b81e86cd19f046b69b (patch)
treec53c2f826f777f9d6b2d249dab556feb72a6c3a6 /src/node_modules/validator/lib/isBase64.js
downloadlangdetect-46e43f4bde4a35785b4997b81e86cd19f046b69b.tar.gz
langdetect-46e43f4bde4a35785b4997b81e86cd19f046b69b.tar.bz2
langdetect-46e43f4bde4a35785b4997b81e86cd19f046b69b.zip
Commit
Diffstat (limited to 'src/node_modules/validator/lib/isBase64.js')
-rw-r--r--src/node_modules/validator/lib/isBase64.js27
1 files changed, 27 insertions, 0 deletions
diff --git a/src/node_modules/validator/lib/isBase64.js b/src/node_modules/validator/lib/isBase64.js
new file mode 100644
index 0000000..283daec
--- /dev/null
+++ b/src/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; \ No newline at end of file