feat: add isUUID 'loose' option to validate UUID-like hexadecimal strings (#2553)

Author: bc-m

README.md

@@ -169,7 +169,7 @@ Validator                               | Description
 **isTaxID(str, locale)**                | check if the string is a valid Tax Identification Number. Default locale is `en-US`.<br/><br/>More info about exact TIN support can be found in `src/lib/isTaxID.js`.<br/><br/>Supported locales: `[ 'bg-BG', 'cs-CZ', 'de-AT', 'de-DE', 'dk-DK', 'el-CY', 'el-GR', 'en-CA', 'en-GB', 'en-IE', 'en-US', 'es-AR', 'es-ES', 'et-EE', 'fi-FI', 'fr-BE', 'fr-CA', 'fr-FR', 'fr-LU', 'hr-HR', 'hu-HU', 'it-IT', 'lb-LU', 'lt-LT', 'lv-LV', 'mt-MT', 'nl-BE', 'nl-NL', 'pl-PL', 'pt-BR', 'pt-PT', 'ro-RO', 'sk-SK', 'sl-SI', 'sv-SE', 'uk-UA']`.
 **isURL(str [, options])**              | check if the string is a URL.<br/><br/>`options` is an object which defaults to `{ protocols: ['http','https','ftp'], require_tld: true, require_protocol: false, require_host: true, require_port: false, require_valid_protocol: true, allow_underscores: false, host_whitelist: false, host_blacklist: false, allow_trailing_dot: false, allow_protocol_relative_urls: false, allow_fragments: true, allow_query_components: true, disallow_auth: false, validate_length: true }`.<br/><br/>`require_protocol` - if set to true isURL will return false if protocol is not present in the URL.<br/>`require_valid_protocol` - isURL will check if the URL's protocol is present in the protocols option.<br/>`protocols` - valid protocols can be modified with this option.<br/>`require_host` - if set to false isURL will not check if host is present in the URL.<br/>`require_port` - if set to true isURL will check if port is present in the URL.<br/>`allow_protocol_relative_urls` - if set to true protocol relative URLs will be allowed.<br/>`allow_fragments` - if set to false isURL will return false if fragments are present.<br/>`allow_query_components` - if set to false isURL will return false if query components are present.<br/>`validate_length` - if set to false isURL will skip string length validation. `max_allowed_length` will be ignored if this is set as `false`.<br/>`max_allowed_length` - if set isURL will not allow URLs longer than the specified value (default is 2084 that IE maximum URL length).
 **isULID(str)**                         | check if the string is a [ULID](https://github.com/ulid/spec).
-**isUUID(str [, version])**             | check if the string is an RFC9562 UUID.<br/>`version` is one of `'1'`-`'8'`, `'nil'`, `'max'`, or `'all'`.
+**isUUID(str [, version])**             | check if the string is an RFC9562 UUID.<br/>`version` is one of `'1'`-`'8'`, `'nil'`, `'max'`, `'all'` or `'loose'`. The `'loose'` option checks if the string is a UUID-like string with hexadecimal values, ignoring RFC9565.
 **isVariableWidth(str)**                | check if the string contains a mixture of full and half-width chars.
 **isVAT(str, countryCode)**             | check if the string is a [valid VAT number][VAT Number] if validation is available for the given country code matching [ISO 3166-1 alpha-2][ISO 3166-1 alpha-2]. <br/><br/>`countryCode` is one of `['AL', 'AR', 'AT', 'AU', 'BE', 'BG', 'BO', 'BR', 'BY', 'CA', 'CH', 'CL', 'CO', 'CR', 'CY', 'CZ', 'DE', 'DK', 'DO', 'EC', 'EE', 'EL', 'ES', 'FI', 'FR', 'GB', 'GT', 'HN', 'HR', 'HU', 'ID', 'IE', 'IL', 'IN', 'IS', 'IT', 'KZ', 'LT', 'LU', 'LV', 'MK', 'MT', 'MX', 'NG', 'NI', 'NL', 'NO', 'NZ', 'PA', 'PE', 'PH', 'PL', 'PT', 'PY', 'RO', 'RS', 'RU', 'SA', 'SE', 'SI', 'SK', 'SM', 'SV', 'TR', 'UA', 'UY', 'UZ', 'VE']`.
 **isWhitelisted(str, chars)**           | check if the string consists only of characters that appear in the whitelist `chars`.

src/lib/isUUID.js

@@ -12,6 +12,7 @@ const uuid = {
 
   nil: /^00000000-0000-0000-0000-000000000000$/i,
   max: /^ffffffff-ffff-ffff-ffff-ffffffffffff$/i,
+  loose: /^[0-9A-F]{8}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{12}$/i,
 
   // From https://github.com/uuidjs/uuid/blob/main/src/regex.js
   all: /^(?:[0-9a-f]{8}-[0-9a-f]{4}-[1-8][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}|00000000-0000-0000-0000-000000000000|ffffffff-ffff-ffff-ffff-ffffffffffff)$/i,

test/validators.test.js

@@ -5662,6 +5662,33 @@ describe('Validators', () => {
         '00000000-0000-0000-0000-000000000000',
       ],
     });
+    test({
+      validator: 'isUUID',
+      args: ['loose'],
+      valid: [
+        '9deb20fe-a6e0-355c-81ea-288b009e4f6d',
+        'A987FBC9-4BED-3078-CF07-9141BA07C9F3',
+        'A987FBC9-4BED-4078-8F07-9141BA07C9F3',
+        'A987FBC9-4BED-5078-AF07-9141BA07C9F3',
+        'A987FBC9-4BED-6078-AF07-9141BA07C9F3',
+        '018C544A-D384-7000-BB74-3B1738ABE43C',
+        'A987FBC9-4BED-8078-AF07-9141BA07C9F3',
+        'aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa',
+        'AAAAAAAA-AAAA-AAAA-AAAA-AAAAAAAAAAAA',
+        'eeeeeeee-eeee-eeee-eeee-eeeeeeeeeeee',
+        'EEEEEEEE-EEEE-EEEE-EEEE-EEEEEEEEEEEE',
+        '99999999-9999-9999-9999-999999999999',
+      ],
+      invalid: [
+        '',
+        'xxxA987FBC9-4BED-3078-CF07-9141BA07C9F3',
+        'A987FBC9-4BED-3078-CF07-9141BA07C9F3xxx',
+        'A987FBC94BED3078CF079141BA07C9F3',
+        '987FBC9-4BED-3078-CF07A-9141BA07C9F3',
+        '934859',
+        'AAAAAAAA-1111-1111-AAAG-111111111111',
+      ],
+    });
     test({
       validator: 'isUUID',
       args: ['all'],