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allowly

v1.0.4

Published

allowly — lightweight string matcher with whitelist/blacklist rules, wildcards, and RegExp support. Perfect for validating inputs, configs, or ACLs with strict or tolerant rule handling.

Downloads

30

Readme

allowly

en ru

Минималистичная библиотека для проверки строковых значений по набору гибких правил: разрешающие, запрещающие, шаблоны, маски и регулярные выражения.

Подходит для валидации конфигов, фильтрации входных данных, маршрутизации и любых систем с rule-based доступом.


Возможности

  • Полное совпадение ("value")

  • Глобальное разрешение ("*")

  • Исключения (!value, !value*)

  • Частичное совпадение по шаблону:

    • начинается с (value*)
    • заканчивается на (*value)
    • содержит (*value*)
  • Экранирование спецсимволов (\*, \!, \/)

  • Поддержка RegExp (/pattern/i)


Установка

npm install allowly

Использование

import allowly from "allowly";

allowly("admin", ["*"]);               // true
allowly("admin", ["!admin"]);           // false
allowly("superadmin", ["admin*"]);      // true
allowly("user-42", ["/user-\\d+/i"]);  // true

Параметры

  allowly(value: string, rules: string[], options: Partial<WhitelistOptions> = { strict: true, caseSensitive: false })
  • strict: boolean - строгий режим
  • caseSensitive: boolean - режим с учётом регистра

Правила

1. Полное совпадение

["value"] → подходит только "value"

2. Глобальное разрешение

["*"] → разрешено всё

3. Исключения

["!value"] → запрещает "value"
["!value*"] → запрещает всё, что начинается с "value"

4. Частичное совпадение (wildcards)

["value*"]   → начинается с
["*value"]   → заканчивается на
["*value*"]  → содержит

5. Экранирование

["\\*"] → символ "*"
["\\!"] → символ "!"
["\\/"] → символ "/"

6. Регулярные выражения

["/foo/i"] → регэксп с флагами
["/^user-\\d+$/"] → строгий RegExp

Приоритет правил

  1. Запрещающие
  2. Разрешающие
  3. Частичные совпадения и RegExp

Лицензия

MIT