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Stored size: 1.54 KB
Contents
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.permuteDomain = permuteDomain;
const getPublicSuffix_1 = require("./getPublicSuffix");
/**
* Generates the permutation of all possible values that {@link domainMatch} the given `domain` parameter. The
* array is in shortest-to-longest order. Useful when building custom {@link Store} implementations.
*
* @example
* ```
* permuteDomain('foo.bar.example.com')
* // ['example.com', 'bar.example.com', 'foo.bar.example.com']
* ```
*
* @public
* @param domain - the domain to generate permutations for
* @param allowSpecialUseDomain - flag to control if {@link https://www.rfc-editor.org/rfc/rfc6761.html | Special Use Domains} such as `localhost` should be allowed
*/
function permuteDomain(domain, allowSpecialUseDomain) {
const pubSuf = (0, getPublicSuffix_1.getPublicSuffix)(domain, {
allowSpecialUseDomain: allowSpecialUseDomain,
});
if (!pubSuf) {
return undefined;
}
if (pubSuf == domain) {
return [domain];
}
// Nuke trailing dot
if (domain.slice(-1) == '.') {
domain = domain.slice(0, -1);
}
const prefix = domain.slice(0, -(pubSuf.length + 1)); // ".example.com"
const parts = prefix.split('.').reverse();
let cur = pubSuf;
const permutations = [cur];
while (parts.length) {
// eslint-disable-next-line @typescript-eslint/no-non-null-assertion
const part = parts.shift();
cur = `${part}.${cur}`;
permutations.push(cur);
}
return permutations;
}
Version data entries
26 entries across 26 versions & 1 rubygems