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rOACCT/node_modules/webpack-dev-middleware/dist/utils/getFilenameFromUrl.js
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getFilenameFromUrl.js
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			"use strict";

			const path = require("path");

			const {
			parse
			} = require("url");

			const querystring = require("querystring");

			const getPaths = require("./getPaths");
			/** @typedef {import("../index.js").IncomingMessage} IncomingMessage */

			/** @typedef {import("../index.js").ServerResponse} ServerResponse */


			const cacheStore = new WeakMap();
			/**
			* @param {Function} fn
			* @param {{ cache?: Map<any, any> }} [cache]
			* @returns {any}
			*/

			const mem = (fn, {
			cache = new Map()
			} = {}) => {
			/**
			* @param {any} arguments_
			* @return {any}
			*/
			const memoized = (...arguments_) => {
			const [key] = arguments_;
			const cacheItem = cache.get(key);

			if (cacheItem) {
			return cacheItem.data;
			}

			const result = fn.apply(void 0, arguments_);
			cache.set(key, {
			data: result
			});
			return result;
			};

			cacheStore.set(memoized, cache);
			return memoized;
			};

			const memoizedParse = mem(parse);
			/**
			* @template {IncomingMessage} Request
			* @template {ServerResponse} Response
			* @param {import("../index.js").Context<Request, Response>} context
			* @param {string} url
			* @returns {string \| undefined}
			*/

			function getFilenameFromUrl(context, url) {
			const {
			options
			} = context;
			const paths = getPaths(context);
			let foundFilename;
			let urlObject;

			try {
			// The `url` property of the `request` is contains only `pathname`, `search` and `hash`
			urlObject = memoizedParse(url, false, true);
			} catch (_ignoreError) {
			return;
			}

			for (const {
			publicPath,
			outputPath
			} of paths) {
			let filename;
			let publicPathObject;

			try {
			publicPathObject = memoizedParse(publicPath !== "auto" && publicPath ? publicPath : "/", false, true);
			} catch (_ignoreError) {
			// eslint-disable-next-line no-continue
			continue;
			}

			if (urlObject.pathname && urlObject.pathname.startsWith(publicPathObject.pathname)) {
			filename = outputPath; // Strip the `pathname` property from the `publicPath` option from the start of requested url
			// `/complex/foo.js` => `foo.js`

			const pathname = urlObject.pathname.slice(publicPathObject.pathname.length);

			if (pathname) {
			filename = path.join(outputPath, querystring.unescape(pathname));
			}

			let fsStats;

			try {
			fsStats =
			/** @type {import("fs").statSync} */
			context.outputFileSystem.statSync(filename);
			} catch (_ignoreError) {
			// eslint-disable-next-line no-continue
			continue;
			}

			if (fsStats.isFile()) {
			foundFilename = filename;
			break;
			} else if (fsStats.isDirectory() && (typeof options.index === "undefined" \|\| options.index)) {
			const indexValue = typeof options.index === "undefined" \|\| typeof options.index === "boolean" ? "index.html" : options.index;
			filename = path.join(filename, indexValue);

			try {
			fsStats =
			/** @type {import("fs").statSync} */
			context.outputFileSystem.statSync(filename);
			} catch (__ignoreError) {
			// eslint-disable-next-line no-continue
			continue;
			}

			if (fsStats.isFile()) {
			foundFilename = filename;
			break;
			}
			}
			}
			} // eslint-disable-next-line consistent-return


			return foundFilename;
			}

			module.exports = getFilenameFromUrl;