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71 lines
1.8 KiB
71 lines
1.8 KiB
4 weeks ago
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/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Ivan Kopeykin @vankop
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*/
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"use strict";
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/** @typedef {import("./Resolver")} Resolver */
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/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
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const slashCode = "/".charCodeAt(0);
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const backslashCode = "\\".charCodeAt(0);
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/**
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* @param {string} path path
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* @param {string} parent parent path
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* @returns {boolean} true, if path is inside of parent
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*/
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const isInside = (path, parent) => {
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if (!path.startsWith(parent)) return false;
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if (path.length === parent.length) return true;
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const charCode = path.charCodeAt(parent.length);
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return charCode === slashCode || charCode === backslashCode;
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};
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module.exports = class RestrictionsPlugin {
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/**
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* @param {string | ResolveStepHook} source source
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* @param {Set<string | RegExp>} restrictions restrictions
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*/
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constructor(source, restrictions) {
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this.source = source;
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this.restrictions = restrictions;
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}
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/**
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* @param {Resolver} resolver the resolver
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* @returns {void}
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*/
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apply(resolver) {
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resolver
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.getHook(this.source)
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.tapAsync("RestrictionsPlugin", (request, resolveContext, callback) => {
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if (typeof request.path === "string") {
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const path = request.path;
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for (const rule of this.restrictions) {
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if (typeof rule === "string") {
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if (!isInside(path, rule)) {
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if (resolveContext.log) {
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resolveContext.log(
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`${path} is not inside of the restriction ${rule}`
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);
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}
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return callback(null, null);
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}
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} else if (!rule.test(path)) {
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if (resolveContext.log) {
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resolveContext.log(
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`${path} doesn't match the restriction ${rule}`
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);
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}
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return callback(null, null);
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}
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}
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}
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callback();
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});
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}
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};
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