MD5 string validation

README.md

@@ -85,6 +85,7 @@ Passing anything other than a string is an error.
 - **isLength(str, options)** - check if the string's length falls in a range. `options` is an object which defaults to `{min:0, max: undefined}`. Note: this function takes into account surrogate pairs.
 - **isLowercase(str)** - check if the string is lowercase.
 - **isMACAddress(str)** - check if the string is a MAC address.
+- **isMD5(str)** - check if the string is a MD5 hash.
 - **isMobilePhone(str, locale)** - check if the string is a mobile phone number, (locale is one of `['ar-DZ', 'ar-SY', 'cs-CZ', 'de-DE', 'da-DK', 'el-GR', 'en-AU', 'en-GB', 'en-HK', 'en-IN', 'en-NZ', 'en-US', 'en-CA', 'en-ZA', 'en-ZM', 'es-ES', 'fi-FI', 'fr-FR', 'hu-HU', 'ms-MY', 'nb-NO', 'nn-NO', 'pl-PL', 'pt-PT', 'ru-RU', 'tr-TR', 'vi-VN', 'zh-CN', 'zh-TW']`).
 - **isMongoId(str)** - check if the string is a valid hex-encoded representation of a [MongoDB ObjectId][mongoid].
 - **isMultibyte(str)** - check if the string contains one or more multibyte chars.

index.js

@@ -124,6 +124,10 @@ var _isHexColor = require('./lib/isHexColor');
 
 var _isHexColor2 = _interopRequireDefault(_isHexColor);
 
+var _isMD = require('./lib/isMD5');
+
+var _isMD2 = _interopRequireDefault(_isMD);
+
 var _isJSON = require('./lib/isJSON');
 
 var _isJSON2 = _interopRequireDefault(_isJSON);
@@ -257,6 +261,7 @@ var validator = {
   isMultibyte: _isMultibyte2.default, isSurrogatePair: _isSurrogatePair2.default,
   isInt: _isInt2.default, isFloat: _isFloat2.default, isDecimal: _isDecimal2.default, isHexadecimal: _isHexadecimal2.default, isDivisibleBy: _isDivisibleBy2.default,
   isHexColor: _isHexColor2.default,
+  isMD5: _isMD2.default,
   isJSON: _isJSON2.default,
   isNull: _isNull2.default,
   isLength: _isLength2.default, isByteLength: _isByteLength2.default,

lib/isMD5.js

@@ -0,0 +1,22 @@
+'use strict';
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = isMD5;
+
+var _assertString = require('./util/assertString');
+
+var _assertString2 = _interopRequireDefault(_assertString);
+
+function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+
+/* eslint-disable no-control-regex */
+var md5 = /^[a-f0-9]{32}$/;
+/* eslint-enable no-control-regex */
+
+function isMD5(str) {
+  (0, _assertString2.default)(str);
+  return md5.test(str);
+}
+module.exports = exports['default'];

src/index.js

@@ -37,6 +37,8 @@ import isDivisibleBy from './lib/isDivisibleBy';
 
 import isHexColor from './lib/isHexColor';
 
+import isMD5 from './lib/isMD5';
+
 import isJSON from './lib/isJSON';
 import isNull from './lib/isNull';
 
@@ -93,6 +95,7 @@ const validator = {
   isMultibyte, isSurrogatePair,
   isInt, isFloat, isDecimal, isHexadecimal, isDivisibleBy,
   isHexColor,
+  isMD5,
   isJSON,
   isNull,
   isLength, isByteLength,

src/lib/isMD5.js

@@ -0,0 +1,10 @@
+import assertString from './util/assertString';
+
+/* eslint-disable no-control-regex */
+const md5 = /^[a-f0-9]{32}$/;
+/* eslint-enable no-control-regex */
+
+export default function isMD5(str) {
+  assertString(str);
+  return md5.test(str);
+}

test/validators.js

@@ -1099,6 +1099,24 @@ describe('Validators', function () {
     });
   });
 
+  it('should validate md5 strings', function () {
+    test({
+      validator: 'isMD5',
+      valid: [
+        'd94f3f016ae679c3008de268209132f2',
+        '751adbc511ccbe8edf23d486fa4581cd',
+        '88dae00e614d8f24cfd5a8b3f8002e93',
+        '0bf1c35032a71a14c2f719e5a14c1e96',
+      ],
+      invalid: [
+        'KYT0bf1c35032a71a14c2f719e5a14c1',
+        'q94375dj93458w34',
+        '39485729348',
+        '%&FHKJFvk',
+      ],
+    });
+  });
+
   it('should validate null strings', function () {
     test({
       validator: 'isNull',

validator.js

@@ -563,6 +563,15 @@
         return hexcolor.test(str);
       }
 
+      /* eslint-disable no-control-regex */
+      var md5 = /^[a-f0-9]{32}$/;
+      /* eslint-enable no-control-regex */
+
+      function isMD5(str) {
+        assertString(str);
+        return md5.test(str);
+      }
+
       function isJSON(str) {
         assertString(str);
         try {
@@ -1097,6 +1106,7 @@
         isMultibyte: isMultibyte, isSurrogatePair: isSurrogatePair,
         isInt: isInt, isFloat: isFloat, isDecimal: isDecimal, isHexadecimal: isHexadecimal, isDivisibleBy: isDivisibleBy,
         isHexColor: isHexColor,
+        isMD5: isMD5,
         isJSON: isJSON,
         isNull: isNull,
         isLength: isLength, isByteLength: isByteLength,