feat: Passwordless cross-device authentication

- Arkitektur: docs/auth/passwordless-architecture.md
- Backend: iom/quixzoom-auth-service/ (FastAPI + Redis)
- Webb: quixzoom-market-pages/se/login/ (QR-kod + polling)
- App: iom/quixzoom-app/src/features/auth/ (push + deep links)

Flöde: QR-kod → app-godkännande → webb-inloggad

node_modules/express/LICENSE

@@ -0,0 +1,24 @@
+(The MIT License)
+
+Copyright (c) 2009-2014 TJ Holowaychuk <tj@vision-media.ca>
+Copyright (c) 2013-2014 Roman Shtylman <shtylman+expressjs@gmail.com>
+Copyright (c) 2014-2015 Douglas Christopher Wilson <doug@somethingdoug.com>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

node_modules/express/Readme.md

@@ -0,0 +1,276 @@
+[![Express Logo](https://i.cloudup.com/zfY6lL7eFa-3000x3000.png)](https://expressjs.com/)
+
+**Fast, unopinionated, minimalist web framework for [Node.js](https://nodejs.org).**
+
+**This project has a [Code of Conduct].**
+
+## Table of contents
+
+- [Table of contents](#table-of-contents)
+- [Installation](#installation)
+- [Features](#features)
+- [Docs \& Community](#docs--community)
+- [Quick Start](#quick-start)
+- [Philosophy](#philosophy)
+- [Examples](#examples)
+- [Contributing](#contributing)
+  - [Security Issues](#security-issues)
+  - [Running Tests](#running-tests)
+- [Current project team members](#current-project-team-members)
+  - [TC (Technical Committee)](#tc-technical-committee)
+    - [TC emeriti members](#tc-emeriti-members)
+  - [Triagers](#triagers)
+    - [Emeritus Triagers](#emeritus-triagers)
+- [License](#license)
+
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-downloads-url]
+[![Linux Build][github-actions-ci-image]][github-actions-ci-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+[![OpenSSF Scorecard Badge][ossf-scorecard-badge]][ossf-scorecard-visualizer]
+
+
+```js
+import express from 'express'
+
+const app = express()
+
+app.get('/', (req, res) => {
+  res.send('Hello World')
+})
+
+app.listen(3000, () => {
+  console.log('Server is running on http://localhost:3000')
+})
+```
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/).
+
+Before installing, [download and install Node.js](https://nodejs.org/en/download/).
+Node.js 18 or higher is required.
+
+If this is a brand new project, make sure to create a `package.json` first with
+the [`npm init` command](https://docs.npmjs.com/creating-a-package-json-file).
+
+Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```bash
+npm install express
+```
+
+Follow [our installing guide](https://expressjs.com/en/starter/installing.html)
+for more information.
+
+## Features
+
+  * Robust routing
+  * Focus on high performance
+  * Super-high test coverage
+  * HTTP helpers (redirection, caching, etc)
+  * View system supporting 14+ template engines
+  * Content negotiation
+  * Executable for generating applications quickly
+
+## Docs & Community
+
+  * [Website and Documentation](https://expressjs.com/) - [[website repo](https://github.com/expressjs/expressjs.com)]
+  * [GitHub Organization](https://github.com/expressjs) for Official Middleware & Modules
+  * [Github Discussions](https://github.com/expressjs/discussions) for discussion on the development and usage of Express
+
+**PROTIP** Be sure to read the [migration guide to v5](https://expressjs.com/en/guide/migrating-5)
+
+## Quick Start
+
+  The quickest way to get started with express is to utilize the executable [`express(1)`](https://github.com/expressjs/generator) to generate an application as shown below:
+
+  Install the executable. The executable's major version will match Express's:
+
+```bash
+npm install -g express-generator@4
+```
+
+  Create the app:
+
+```bash
+express /tmp/foo && cd /tmp/foo
+```
+
+  Install dependencies:
+
+```bash
+npm install
+```
+
+  Start the server:
+
+```bash
+npm start
+```
+
+  View the website at: http://localhost:3000
+
+## Philosophy
+
+  The Express philosophy is to provide small, robust tooling for HTTP servers, making
+  it a great solution for single page applications, websites, hybrids, or public
+  HTTP APIs.
+
+  Express does not force you to use any specific ORM or template engine. With support for over
+  14 template engines via [@ladjs/consolidate](https://github.com/ladjs/consolidate),
+  you can quickly craft your perfect framework.
+
+## Examples
+
+  To view the examples, clone the Express repository:
+
+```bash
+git clone https://github.com/expressjs/express.git --depth 1 && cd express
+```
+
+  Then install the dependencies:
+
+```bash
+npm install
+```
+
+  Then run whichever example you want:
+
+```bash
+node examples/content-negotiation
+```
+
+## Contributing
+
+The Express.js project welcomes all constructive contributions. Contributions take many forms,
+from code for bug fixes and enhancements, to additions and fixes to documentation, additional
+tests, triaging incoming pull requests and issues, and more!
+
+See the [Contributing Guide] for more technical details on contributing.
+
+### Security Issues
+
+If you discover a security vulnerability in Express, please see [Security Policies and Procedures](SECURITY.md).
+
+### Running Tests
+
+To run the test suite, first install the dependencies:
+
+```bash
+npm install
+```
+
+Then run `npm test`:
+
+```bash
+npm test
+```
+
+## Current project team members
+
+For information about the governance of the express.js project, see [GOVERNANCE.md](https://github.com/expressjs/discussions/blob/HEAD/docs/GOVERNANCE.md).
+
+The original author of Express is [TJ Holowaychuk](https://github.com/tj)
+
+[List of all contributors](https://github.com/expressjs/express/graphs/contributors)
+
+### TC (Technical Committee)
+
+* [UlisesGascon](https://github.com/UlisesGascon) - **Ulises Gascón** (he/him)
+* [jonchurch](https://github.com/jonchurch) - **Jon Church**
+* [wesleytodd](https://github.com/wesleytodd) - **Wes Todd**
+* [LinusU](https://github.com/LinusU) - **Linus Unnebäck**
+* [blakeembrey](https://github.com/blakeembrey) - **Blake Embrey**
+* [sheplu](https://github.com/sheplu) - **Jean Burellier**
+* [crandmck](https://github.com/crandmck) - **Rand McKinney**
+* [ctcpip](https://github.com/ctcpip) - **Chris de Almeida**
+
+<details>
+<summary>TC emeriti members</summary>
+
+#### TC emeriti members
+
+  * [dougwilson](https://github.com/dougwilson) - **Douglas Wilson**
+  * [hacksparrow](https://github.com/hacksparrow) - **Hage Yaapa**
+  * [jonathanong](https://github.com/jonathanong) - **jongleberry**
+  * [niftylettuce](https://github.com/niftylettuce) - **niftylettuce**
+  * [troygoode](https://github.com/troygoode) - **Troy Goode**
+</details>
+
+
+### Triagers
+
+* [aravindvnair99](https://github.com/aravindvnair99) - **Aravind Nair**
+* [bjohansebas](https://github.com/bjohansebas) - **Sebastian Beltran**
+* [carpasse](https://github.com/carpasse) - **Carlos Serrano**
+* [CBID2](https://github.com/CBID2) - **Christine Belzie**
+* [UlisesGascon](https://github.com/UlisesGascon) - **Ulises Gascón** (he/him)
+* [IamLizu](https://github.com/IamLizu) - **S M Mahmudul Hasan** (he/him)
+* [Phillip9587](https://github.com/Phillip9587) - **Phillip Barta**
+* [efekrskl](https://github.com/efekrskl) - **Efe Karasakal**
+
+
+<details>
+<summary>Triagers emeriti members</summary>
+
+#### Emeritus Triagers
+
+  * [AuggieH](https://github.com/AuggieH) - **Auggie Hudak**
+  * [G-Rath](https://github.com/G-Rath) - **Gareth Jones**
+  * [MohammadXroid](https://github.com/MohammadXroid) - **Mohammad Ayashi**
+  * [NawafSwe](https://github.com/NawafSwe) - **Nawaf Alsharqi**
+  * [NotMoni](https://github.com/NotMoni) - **Moni**
+  * [VigneshMurugan](https://github.com/VigneshMurugan) - **Vignesh Murugan**
+  * [davidmashe](https://github.com/davidmashe) - **David Ashe**
+  * [digitaIfabric](https://github.com/digitaIfabric) - **David**
+  * [e-l-i-s-e](https://github.com/e-l-i-s-e) - **Elise Bonner**
+  * [fed135](https://github.com/fed135) - **Frederic Charette**
+  * [firmanJS](https://github.com/firmanJS) - **Firman Abdul Hakim**
+  * [getspooky](https://github.com/getspooky) - **Yasser Ameur**
+  * [ghinks](https://github.com/ghinks) - **Glenn**
+  * [ghousemohamed](https://github.com/ghousemohamed) - **Ghouse Mohamed**
+  * [gireeshpunathil](https://github.com/gireeshpunathil) - **Gireesh Punathil**
+  * [jake32321](https://github.com/jake32321) - **Jake Reed**
+  * [jonchurch](https://github.com/jonchurch) - **Jon Church**
+  * [lekanikotun](https://github.com/lekanikotun) - **Troy Goode**
+  * [marsonya](https://github.com/marsonya) - **Lekan Ikotun**
+  * [mastermatt](https://github.com/mastermatt) - **Matt R. Wilson**
+  * [maxakuru](https://github.com/maxakuru) - **Max Edell**
+  * [mlrawlings](https://github.com/mlrawlings) - **Michael Rawlings**
+  * [rodion-arr](https://github.com/rodion-arr) - **Rodion Abdurakhimov**
+  * [sheplu](https://github.com/sheplu) - **Jean Burellier**
+  * [tarunyadav1](https://github.com/tarunyadav1) - **Tarun yadav**
+  * [tunniclm](https://github.com/tunniclm) - **Mike Tunnicliffe**
+  * [enyoghasim](https://github.com/enyoghasim) - **David Enyoghasim**
+  * [0ss](https://github.com/0ss) - **Salah**
+  * [import-brain](https://github.com/import-brain) - **Eric Cheng** (he/him)
+  * [dakshkhetan](https://github.com/dakshkhetan) - **Daksh Khetan** (he/him)
+  * [lucasraziel](https://github.com/lucasraziel) - **Lucas Soares Do Rego**
+  * [mertcanaltin](https://github.com/mertcanaltin) - **Mert Can Altin**
+  * [dpopp07](https://github.com/dpopp07) - **Dustin Popp**
+  * [Sushmeet](https://github.com/Sushmeet) - **Sushmeet Sunger**
+  * [3imed-jaberi](https://github.com/3imed-jaberi) - **Imed Jaberi**
+
+</details>
+
+
+## License
+
+  [MIT](LICENSE)
+
+[coveralls-image]: https://img.shields.io/coverallsCoverage/github/expressjs/express?branch=master
+[coveralls-url]: https://coveralls.io/r/expressjs/express?branch=master
+[github-actions-ci-image]: https://img.shields.io/github/actions/workflow/status/expressjs/express/ci.yml?branch=master&label=ci
+[github-actions-ci-url]: https://github.com/expressjs/express/actions/workflows/ci.yml
+[npm-downloads-image]: https://img.shields.io/npm/dm/express
+[npm-downloads-url]: https://npmcharts.com/compare/express?minimal=true
+[npm-url]: https://npmjs.org/package/express
+[npm-version-image]: https://img.shields.io/npm/v/express
+[ossf-scorecard-badge]: https://api.scorecard.dev/projects/github.com/expressjs/express/badge
+[ossf-scorecard-visualizer]: https://ossf.github.io/scorecard-visualizer/#/projects/github.com/expressjs/express
+[Code of Conduct]: https://github.com/expressjs/.github/blob/HEAD/CODE_OF_CONDUCT.md
+[Contributing Guide]: https://github.com/expressjs/.github/blob/HEAD/CONTRIBUTING.md

node_modules/express/index.js

@@ -0,0 +1,11 @@
+/*!
+ * express
+ * Copyright(c) 2009-2013 TJ Holowaychuk
+ * Copyright(c) 2013 Roman Shtylman
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+module.exports = require('./lib/express');

node_modules/express/lib/application.js

@@ -0,0 +1,631 @@
+/*!
+ * express
+ * Copyright(c) 2009-2013 TJ Holowaychuk
+ * Copyright(c) 2013 Roman Shtylman
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var finalhandler = require('finalhandler');
+var debug = require('debug')('express:application');
+var View = require('./view');
+var http = require('node:http');
+var methods = require('./utils').methods;
+var compileETag = require('./utils').compileETag;
+var compileQueryParser = require('./utils').compileQueryParser;
+var compileTrust = require('./utils').compileTrust;
+var resolve = require('node:path').resolve;
+var once = require('once')
+var Router = require('router');
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var slice = Array.prototype.slice;
+var flatten = Array.prototype.flat;
+
+/**
+ * Application prototype.
+ */
+
+var app = exports = module.exports = {};
+
+/**
+ * Variable for trust proxy inheritance back-compat
+ * @private
+ */
+
+var trustProxyDefaultSymbol = '@@symbol:trust_proxy_default';
+
+/**
+ * Initialize the server.
+ *
+ *   - setup default configuration
+ *   - setup default middleware
+ *   - setup route reflection methods
+ *
+ * @private
+ */
+
+app.init = function init() {
+  var router = null;
+
+  this.cache = Object.create(null);
+  this.engines = Object.create(null);
+  this.settings = Object.create(null);
+
+  this.defaultConfiguration();
+
+  // Setup getting to lazily add base router
+  Object.defineProperty(this, 'router', {
+    configurable: true,
+    enumerable: true,
+    get: function getrouter() {
+      if (router === null) {
+        router = new Router({
+          caseSensitive: this.enabled('case sensitive routing'),
+          strict: this.enabled('strict routing')
+        });
+      }
+
+      return router;
+    }
+  });
+};
+
+/**
+ * Initialize application configuration.
+ * @private
+ */
+
+app.defaultConfiguration = function defaultConfiguration() {
+  var env = process.env.NODE_ENV || 'development';
+
+  // default settings
+  this.enable('x-powered-by');
+  this.set('etag', 'weak');
+  this.set('env', env);
+  this.set('query parser', 'simple')
+  this.set('subdomain offset', 2);
+  this.set('trust proxy', false);
+
+  // trust proxy inherit back-compat
+  Object.defineProperty(this.settings, trustProxyDefaultSymbol, {
+    configurable: true,
+    value: true
+  });
+
+  debug('booting in %s mode', env);
+
+  this.on('mount', function onmount(parent) {
+    // inherit trust proxy
+    if (this.settings[trustProxyDefaultSymbol] === true
+      && typeof parent.settings['trust proxy fn'] === 'function') {
+      delete this.settings['trust proxy'];
+      delete this.settings['trust proxy fn'];
+    }
+
+    // inherit protos
+    Object.setPrototypeOf(this.request, parent.request)
+    Object.setPrototypeOf(this.response, parent.response)
+    Object.setPrototypeOf(this.engines, parent.engines)
+    Object.setPrototypeOf(this.settings, parent.settings)
+  });
+
+  // setup locals
+  this.locals = Object.create(null);
+
+  // top-most app is mounted at /
+  this.mountpath = '/';
+
+  // default locals
+  this.locals.settings = this.settings;
+
+  // default configuration
+  this.set('view', View);
+  this.set('views', resolve('views'));
+  this.set('jsonp callback name', 'callback');
+
+  if (env === 'production') {
+    this.enable('view cache');
+  }
+};
+
+/**
+ * Dispatch a req, res pair into the application. Starts pipeline processing.
+ *
+ * If no callback is provided, then default error handlers will respond
+ * in the event of an error bubbling through the stack.
+ *
+ * @private
+ */
+
+app.handle = function handle(req, res, callback) {
+  // final handler
+  var done = callback || finalhandler(req, res, {
+    env: this.get('env'),
+    onerror: logerror.bind(this)
+  });
+
+  // set powered by header
+  if (this.enabled('x-powered-by')) {
+    res.setHeader('X-Powered-By', 'Express');
+  }
+
+  // set circular references
+  req.res = res;
+  res.req = req;
+
+  // alter the prototypes
+  Object.setPrototypeOf(req, this.request)
+  Object.setPrototypeOf(res, this.response)
+
+  // setup locals
+  if (!res.locals) {
+    res.locals = Object.create(null);
+  }
+
+  this.router.handle(req, res, done);
+};
+
+/**
+ * Proxy `Router#use()` to add middleware to the app router.
+ * See Router#use() documentation for details.
+ *
+ * If the _fn_ parameter is an express app, then it will be
+ * mounted at the _route_ specified.
+ *
+ * @public
+ */
+
+app.use = function use(fn) {
+  var offset = 0;
+  var path = '/';
+
+  // default path to '/'
+  // disambiguate app.use([fn])
+  if (typeof fn !== 'function') {
+    var arg = fn;
+
+    while (Array.isArray(arg) && arg.length !== 0) {
+      arg = arg[0];
+    }
+
+    // first arg is the path
+    if (typeof arg !== 'function') {
+      offset = 1;
+      path = fn;
+    }
+  }
+
+  var fns = flatten.call(slice.call(arguments, offset), Infinity);
+
+  if (fns.length === 0) {
+    throw new TypeError('app.use() requires a middleware function')
+  }
+
+  // get router
+  var router = this.router;
+
+  fns.forEach(function (fn) {
+    // non-express app
+    if (!fn || !fn.handle || !fn.set) {
+      return router.use(path, fn);
+    }
+
+    debug('.use app under %s', path);
+    fn.mountpath = path;
+    fn.parent = this;
+
+    // restore .app property on req and res
+    router.use(path, function mounted_app(req, res, next) {
+      var orig = req.app;
+      fn.handle(req, res, function (err) {
+        Object.setPrototypeOf(req, orig.request)
+        Object.setPrototypeOf(res, orig.response)
+        next(err);
+      });
+    });
+
+    // mounted an app
+    fn.emit('mount', this);
+  }, this);
+
+  return this;
+};
+
+/**
+ * Proxy to the app `Router#route()`
+ * Returns a new `Route` instance for the _path_.
+ *
+ * Routes are isolated middleware stacks for specific paths.
+ * See the Route api docs for details.
+ *
+ * @public
+ */
+
+app.route = function route(path) {
+  return this.router.route(path);
+};
+
+/**
+ * Register the given template engine callback `fn`
+ * as `ext`.
+ *
+ * By default will `require()` the engine based on the
+ * file extension. For example if you try to render
+ * a "foo.ejs" file Express will invoke the following internally:
+ *
+ *     app.engine('ejs', require('ejs').__express);
+ *
+ * For engines that do not provide `.__express` out of the box,
+ * or if you wish to "map" a different extension to the template engine
+ * you may use this method. For example mapping the EJS template engine to
+ * ".html" files:
+ *
+ *     app.engine('html', require('ejs').renderFile);
+ *
+ * In this case EJS provides a `.renderFile()` method with
+ * the same signature that Express expects: `(path, options, callback)`,
+ * though note that it aliases this method as `ejs.__express` internally
+ * so if you're using ".ejs" extensions you don't need to do anything.
+ *
+ * Some template engines do not follow this convention, the
+ * [Consolidate.js](https://github.com/tj/consolidate.js)
+ * library was created to map all of node's popular template
+ * engines to follow this convention, thus allowing them to
+ * work seamlessly within Express.
+ *
+ * @param {String} ext
+ * @param {Function} fn
+ * @return {app} for chaining
+ * @public
+ */
+
+app.engine = function engine(ext, fn) {
+  if (typeof fn !== 'function') {
+    throw new Error('callback function required');
+  }
+
+  // get file extension
+  var extension = ext[0] !== '.'
+    ? '.' + ext
+    : ext;
+
+  // store engine
+  this.engines[extension] = fn;
+
+  return this;
+};
+
+/**
+ * Proxy to `Router#param()` with one added api feature. The _name_ parameter
+ * can be an array of names.
+ *
+ * See the Router#param() docs for more details.
+ *
+ * @param {String|Array} name
+ * @param {Function} fn
+ * @return {app} for chaining
+ * @public
+ */
+
+app.param = function param(name, fn) {
+  if (Array.isArray(name)) {
+    for (var i = 0; i < name.length; i++) {
+      this.param(name[i], fn);
+    }
+
+    return this;
+  }
+
+  this.router.param(name, fn);
+
+  return this;
+};
+
+/**
+ * Assign `setting` to `val`, or return `setting`'s value.
+ *
+ *    app.set('foo', 'bar');
+ *    app.set('foo');
+ *    // => "bar"
+ *
+ * Mounted servers inherit their parent server's settings.
+ *
+ * @param {String} setting
+ * @param {*} [val]
+ * @return {Server} for chaining
+ * @public
+ */
+
+app.set = function set(setting, val) {
+  if (arguments.length === 1) {
+    // app.get(setting)
+    return this.settings[setting];
+  }
+
+  debug('set "%s" to %o', setting, val);
+
+  // set value
+  this.settings[setting] = val;
+
+  // trigger matched settings
+  switch (setting) {
+    case 'etag':
+      this.set('etag fn', compileETag(val));
+      break;
+    case 'query parser':
+      this.set('query parser fn', compileQueryParser(val));
+      break;
+    case 'trust proxy':
+      this.set('trust proxy fn', compileTrust(val));
+
+      // trust proxy inherit back-compat
+      Object.defineProperty(this.settings, trustProxyDefaultSymbol, {
+        configurable: true,
+        value: false
+      });
+
+      break;
+  }
+
+  return this;
+};
+
+/**
+ * Return the app's absolute pathname
+ * based on the parent(s) that have
+ * mounted it.
+ *
+ * For example if the application was
+ * mounted as "/admin", which itself
+ * was mounted as "/blog" then the
+ * return value would be "/blog/admin".
+ *
+ * @return {String}
+ * @private
+ */
+
+app.path = function path() {
+  return this.parent
+    ? this.parent.path() + this.mountpath
+    : '';
+};
+
+/**
+ * Check if `setting` is enabled (truthy).
+ *
+ *    app.enabled('foo')
+ *    // => false
+ *
+ *    app.enable('foo')
+ *    app.enabled('foo')
+ *    // => true
+ *
+ * @param {String} setting
+ * @return {Boolean}
+ * @public
+ */
+
+app.enabled = function enabled(setting) {
+  return Boolean(this.set(setting));
+};
+
+/**
+ * Check if `setting` is disabled.
+ *
+ *    app.disabled('foo')
+ *    // => true
+ *
+ *    app.enable('foo')
+ *    app.disabled('foo')
+ *    // => false
+ *
+ * @param {String} setting
+ * @return {Boolean}
+ * @public
+ */
+
+app.disabled = function disabled(setting) {
+  return !this.set(setting);
+};
+
+/**
+ * Enable `setting`.
+ *
+ * @param {String} setting
+ * @return {app} for chaining
+ * @public
+ */
+
+app.enable = function enable(setting) {
+  return this.set(setting, true);
+};
+
+/**
+ * Disable `setting`.
+ *
+ * @param {String} setting
+ * @return {app} for chaining
+ * @public
+ */
+
+app.disable = function disable(setting) {
+  return this.set(setting, false);
+};
+
+/**
+ * Delegate `.VERB(...)` calls to `router.VERB(...)`.
+ */
+
+methods.forEach(function (method) {
+  app[method] = function (path) {
+    if (method === 'get' && arguments.length === 1) {
+      // app.get(setting)
+      return this.set(path);
+    }
+
+    var route = this.route(path);
+    route[method].apply(route, slice.call(arguments, 1));
+    return this;
+  };
+});
+
+/**
+ * Special-cased "all" method, applying the given route `path`,
+ * middleware, and callback to _every_ HTTP method.
+ *
+ * @param {String} path
+ * @param {Function} ...
+ * @return {app} for chaining
+ * @public
+ */
+
+app.all = function all(path) {
+  var route = this.route(path);
+  var args = slice.call(arguments, 1);
+
+  for (var i = 0; i < methods.length; i++) {
+    route[methods[i]].apply(route, args);
+  }
+
+  return this;
+};
+
+/**
+ * Render the given view `name` name with `options`
+ * and a callback accepting an error and the
+ * rendered template string.
+ *
+ * Example:
+ *
+ *    app.render('email', { name: 'Tobi' }, function(err, html){
+ *      // ...
+ *    })
+ *
+ * @param {String} name
+ * @param {Object|Function} options or fn
+ * @param {Function} callback
+ * @public
+ */
+
+app.render = function render(name, options, callback) {
+  var cache = this.cache;
+  var done = callback;
+  var engines = this.engines;
+  var opts = options;
+  var view;
+
+  // support callback function as second arg
+  if (typeof options === 'function') {
+    done = options;
+    opts = {};
+  }
+
+  // merge options
+  var renderOptions = { ...this.locals, ...opts._locals, ...opts };
+
+  // set .cache unless explicitly provided
+  if (renderOptions.cache == null) {
+    renderOptions.cache = this.enabled('view cache');
+  }
+
+  // primed cache
+  if (renderOptions.cache) {
+    view = cache[name];
+  }
+
+  // view
+  if (!view) {
+    var View = this.get('view');
+
+    view = new View(name, {
+      defaultEngine: this.get('view engine'),
+      root: this.get('views'),
+      engines: engines
+    });
+
+    if (!view.path) {
+      var dirs = Array.isArray(view.root) && view.root.length > 1
+        ? 'directories "' + view.root.slice(0, -1).join('", "') + '" or "' + view.root[view.root.length - 1] + '"'
+        : 'directory "' + view.root + '"'
+      var err = new Error('Failed to lookup view "' + name + '" in views ' + dirs);
+      err.view = view;
+      return done(err);
+    }
+
+    // prime the cache
+    if (renderOptions.cache) {
+      cache[name] = view;
+    }
+  }
+
+  // render
+  tryRender(view, renderOptions, done);
+};
+
+/**
+ * Listen for connections.
+ *
+ * A node `http.Server` is returned, with this
+ * application (which is a `Function`) as its
+ * callback. If you wish to create both an HTTP
+ * and HTTPS server you may do so with the "http"
+ * and "https" modules as shown here:
+ *
+ *    var http = require('node:http')
+ *      , https = require('node:https')
+ *      , express = require('express')
+ *      , app = express();
+ *
+ *    http.createServer(app).listen(80);
+ *    https.createServer({ ... }, app).listen(443);
+ *
+ * @return {http.Server}
+ * @public
+ */
+
+app.listen = function listen() {
+  var server = http.createServer(this)
+  var args = slice.call(arguments)
+  if (typeof args[args.length - 1] === 'function') {
+    var done = args[args.length - 1] = once(args[args.length - 1])
+    server.once('error', done)
+  }
+  return server.listen.apply(server, args)
+}
+
+/**
+ * Log error using console.error.
+ *
+ * @param {Error} err
+ * @private
+ */
+
+function logerror(err) {
+  /* istanbul ignore next */
+  if (this.get('env') !== 'test') console.error(err.stack || err.toString());
+}
+
+/**
+ * Try rendering a view.
+ * @private
+ */
+
+function tryRender(view, options, callback) {
+  try {
+    view.render(options, callback);
+  } catch (err) {
+    callback(err);
+  }
+}

node_modules/express/lib/express.js

@@ -0,0 +1,81 @@
+/*!
+ * express
+ * Copyright(c) 2009-2013 TJ Holowaychuk
+ * Copyright(c) 2013 Roman Shtylman
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module dependencies.
+ */
+
+var bodyParser = require('body-parser')
+var EventEmitter = require('node:events').EventEmitter;
+var mixin = require('merge-descriptors');
+var proto = require('./application');
+var Router = require('router');
+var req = require('./request');
+var res = require('./response');
+
+/**
+ * Expose `createApplication()`.
+ */
+
+exports = module.exports = createApplication;
+
+/**
+ * Create an express application.
+ *
+ * @return {Function}
+ * @api public
+ */
+
+function createApplication() {
+  var app = function(req, res, next) {
+    app.handle(req, res, next);
+  };
+
+  mixin(app, EventEmitter.prototype, false);
+  mixin(app, proto, false);
+
+  // expose the prototype that will get set on requests
+  app.request = Object.create(req, {
+    app: { configurable: true, enumerable: true, writable: true, value: app }
+  })
+
+  // expose the prototype that will get set on responses
+  app.response = Object.create(res, {
+    app: { configurable: true, enumerable: true, writable: true, value: app }
+  })
+
+  app.init();
+  return app;
+}
+
+/**
+ * Expose the prototypes.
+ */
+
+exports.application = proto;
+exports.request = req;
+exports.response = res;
+
+/**
+ * Expose constructors.
+ */
+
+exports.Route = Router.Route;
+exports.Router = Router;
+
+/**
+ * Expose middleware
+ */
+
+exports.json = bodyParser.json
+exports.raw = bodyParser.raw
+exports.static = require('serve-static');
+exports.text = bodyParser.text
+exports.urlencoded = bodyParser.urlencoded

node_modules/express/lib/request.js

@@ -0,0 +1,514 @@
+/*!
+ * express
+ * Copyright(c) 2009-2013 TJ Holowaychuk
+ * Copyright(c) 2013 Roman Shtylman
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var accepts = require('accepts');
+var isIP = require('node:net').isIP;
+var typeis = require('type-is');
+var http = require('node:http');
+var fresh = require('fresh');
+var parseRange = require('range-parser');
+var parse = require('parseurl');
+var proxyaddr = require('proxy-addr');
+
+/**
+ * Request prototype.
+ * @public
+ */
+
+var req = Object.create(http.IncomingMessage.prototype)
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = req
+
+/**
+ * Return request header.
+ *
+ * The `Referrer` header field is special-cased,
+ * both `Referrer` and `Referer` are interchangeable.
+ *
+ * Examples:
+ *
+ *     req.get('Content-Type');
+ *     // => "text/plain"
+ *
+ *     req.get('content-type');
+ *     // => "text/plain"
+ *
+ *     req.get('Something');
+ *     // => undefined
+ *
+ * Aliased as `req.header()`.
+ *
+ * @param {String} name
+ * @return {String}
+ * @public
+ */
+
+req.get =
+req.header = function header(name) {
+  if (!name) {
+    throw new TypeError('name argument is required to req.get');
+  }
+
+  if (typeof name !== 'string') {
+    throw new TypeError('name must be a string to req.get');
+  }
+
+  var lc = name.toLowerCase();
+
+  switch (lc) {
+    case 'referer':
+    case 'referrer':
+      return this.headers.referrer
+        || this.headers.referer;
+    default:
+      return this.headers[lc];
+  }
+};
+
+/**
+ * To do: update docs.
+ *
+ * Check if the given `type(s)` is acceptable, returning
+ * the best match when true, otherwise `undefined`, in which
+ * case you should respond with 406 "Not Acceptable".
+ *
+ * The `type` value may be a single MIME type string
+ * such as "application/json", an extension name
+ * such as "json", a comma-delimited list such as "json, html, text/plain",
+ * an argument list such as `"json", "html", "text/plain"`,
+ * or an array `["json", "html", "text/plain"]`. When a list
+ * or array is given, the _best_ match, if any is returned.
+ *
+ * Examples:
+ *
+ *     // Accept: text/html
+ *     req.accepts('html');
+ *     // => "html"
+ *
+ *     // Accept: text/*, application/json
+ *     req.accepts('html');
+ *     // => "html"
+ *     req.accepts('text/html');
+ *     // => "text/html"
+ *     req.accepts('json, text');
+ *     // => "json"
+ *     req.accepts('application/json');
+ *     // => "application/json"
+ *
+ *     // Accept: text/*, application/json
+ *     req.accepts('image/png');
+ *     req.accepts('png');
+ *     // => undefined
+ *
+ *     // Accept: text/*;q=.5, application/json
+ *     req.accepts(['html', 'json']);
+ *     req.accepts('html', 'json');
+ *     req.accepts('html, json');
+ *     // => "json"
+ *
+ * @param {String|Array} type(s)
+ * @return {String|Array|Boolean}
+ * @public
+ */
+
+req.accepts = function(){
+  var accept = accepts(this);
+  return accept.types.apply(accept, arguments);
+};
+
+/**
+ * Check if the given `encoding`s are accepted.
+ *
+ * @param {String} ...encoding
+ * @return {String|Array}
+ * @public
+ */
+
+req.acceptsEncodings = function(){
+  var accept = accepts(this);
+  return accept.encodings.apply(accept, arguments);
+};
+
+/**
+ * Check if the given `charset`s are acceptable,
+ * otherwise you should respond with 406 "Not Acceptable".
+ *
+ * @param {String} ...charset
+ * @return {String|Array}
+ * @public
+ */
+
+req.acceptsCharsets = function(){
+  var accept = accepts(this);
+  return accept.charsets.apply(accept, arguments);
+};
+
+/**
+ * Check if the given `lang`s are acceptable,
+ * otherwise you should respond with 406 "Not Acceptable".
+ *
+ * @param {String} ...lang
+ * @return {String|Array}
+ * @public
+ */
+
+req.acceptsLanguages = function(...languages) {
+  return accepts(this).languages(...languages);
+};
+
+/**
+ * Parse Range header field, capping to the given `size`.
+ *
+ * Unspecified ranges such as "0-" require knowledge of your resource length. In
+ * the case of a byte range this is of course the total number of bytes. If the
+ * Range header field is not given `undefined` is returned, `-1` when unsatisfiable,
+ * and `-2` when syntactically invalid.
+ *
+ * When ranges are returned, the array has a "type" property which is the type of
+ * range that is required (most commonly, "bytes"). Each array element is an object
+ * with a "start" and "end" property for the portion of the range.
+ *
+ * The "combine" option can be set to `true` and overlapping & adjacent ranges
+ * will be combined into a single range.
+ *
+ * NOTE: remember that ranges are inclusive, so for example "Range: users=0-3"
+ * should respond with 4 users when available, not 3.
+ *
+ * @param {number} size
+ * @param {object} [options]
+ * @param {boolean} [options.combine=false]
+ * @return {number|array}
+ * @public
+ */
+
+req.range = function range(size, options) {
+  var range = this.get('Range');
+  if (!range) return;
+  return parseRange(size, range, options);
+};
+
+/**
+ * Parse the query string of `req.url`.
+ *
+ * This uses the "query parser" setting to parse the raw
+ * string into an object.
+ *
+ * @return {String}
+ * @api public
+ */
+
+defineGetter(req, 'query', function query(){
+  var queryparse = this.app.get('query parser fn');
+
+  if (!queryparse) {
+    // parsing is disabled
+    return Object.create(null);
+  }
+
+  var querystring = parse(this).query;
+
+  return queryparse(querystring);
+});
+
+/**
+ * Check if the incoming request contains the "Content-Type"
+ * header field, and it contains the given mime `type`.
+ *
+ * Examples:
+ *
+ *      // With Content-Type: text/html; charset=utf-8
+ *      req.is('html');
+ *      req.is('text/html');
+ *      req.is('text/*');
+ *      // => true
+ *
+ *      // When Content-Type is application/json
+ *      req.is('json');
+ *      req.is('application/json');
+ *      req.is('application/*');
+ *      // => true
+ *
+ *      req.is('html');
+ *      // => false
+ *
+ * @param {String|Array} types...
+ * @return {String|false|null}
+ * @public
+ */
+
+req.is = function is(types) {
+  var arr = types;
+
+  // support flattened arguments
+  if (!Array.isArray(types)) {
+    arr = new Array(arguments.length);
+    for (var i = 0; i < arr.length; i++) {
+      arr[i] = arguments[i];
+    }
+  }
+
+  return typeis(this, arr);
+};
+
+/**
+ * Return the protocol string "http" or "https"
+ * when requested with TLS. When the "trust proxy"
+ * setting trusts the socket address, the
+ * "X-Forwarded-Proto" header field will be trusted
+ * and used if present.
+ *
+ * If you're running behind a reverse proxy that
+ * supplies https for you this may be enabled.
+ *
+ * @return {String}
+ * @public
+ */
+
+defineGetter(req, 'protocol', function protocol(){
+  var proto = this.socket.encrypted
+    ? 'https'
+    : 'http';
+  var trust = this.app.get('trust proxy fn');
+
+  if (!trust(this.socket.remoteAddress, 0)) {
+    return proto;
+  }
+
+  // Note: X-Forwarded-Proto is normally only ever a
+  //       single value, but this is to be safe.
+  var header = this.get('X-Forwarded-Proto') || proto
+  var index = header.indexOf(',')
+
+  return index !== -1
+    ? header.substring(0, index).trim()
+    : header.trim()
+});
+
+/**
+ * Short-hand for:
+ *
+ *    req.protocol === 'https'
+ *
+ * @return {Boolean}
+ * @public
+ */
+
+defineGetter(req, 'secure', function secure(){
+  return this.protocol === 'https';
+});
+
+/**
+ * Return the remote address from the trusted proxy.
+ *
+ * The is the remote address on the socket unless
+ * "trust proxy" is set.
+ *
+ * @return {String}
+ * @public
+ */
+
+defineGetter(req, 'ip', function ip(){
+  var trust = this.app.get('trust proxy fn');
+  return proxyaddr(this, trust);
+});
+
+/**
+ * When "trust proxy" is set, trusted proxy addresses + client.
+ *
+ * For example if the value were "client, proxy1, proxy2"
+ * you would receive the array `["client", "proxy1", "proxy2"]`
+ * where "proxy2" is the furthest down-stream and "proxy1" and
+ * "proxy2" were trusted.
+ *
+ * @return {Array}
+ * @public
+ */
+
+defineGetter(req, 'ips', function ips() {
+  var trust = this.app.get('trust proxy fn');
+  var addrs = proxyaddr.all(this, trust);
+
+  // reverse the order (to farthest -> closest)
+  // and remove socket address
+  addrs.reverse().pop()
+
+  return addrs
+});
+
+/**
+ * Return subdomains as an array.
+ *
+ * Subdomains are the dot-separated parts of the host before the main domain of
+ * the app. By default, the domain of the app is assumed to be the last two
+ * parts of the host. This can be changed by setting "subdomain offset".
+ *
+ * For example, if the domain is "tobi.ferrets.example.com":
+ * If "subdomain offset" is not set, req.subdomains is `["ferrets", "tobi"]`.
+ * If "subdomain offset" is 3, req.subdomains is `["tobi"]`.
+ *
+ * @return {Array}
+ * @public
+ */
+
+defineGetter(req, 'subdomains', function subdomains() {
+  var hostname = this.hostname;
+
+  if (!hostname) return [];
+
+  var offset = this.app.get('subdomain offset');
+  var subdomains = !isIP(hostname)
+    ? hostname.split('.').reverse()
+    : [hostname];
+
+  return subdomains.slice(offset);
+});
+
+/**
+ * Short-hand for `url.parse(req.url).pathname`.
+ *
+ * @return {String}
+ * @public
+ */
+
+defineGetter(req, 'path', function path() {
+  return parse(this).pathname;
+});
+
+/**
+ * Parse the "Host" header field to a host.
+ *
+ * When the "trust proxy" setting trusts the socket
+ * address, the "X-Forwarded-Host" header field will
+ * be trusted.
+ *
+ * @return {String}
+ * @public
+ */
+
+defineGetter(req, 'host', function host(){
+  var trust = this.app.get('trust proxy fn');
+  var val = this.get('X-Forwarded-Host');
+
+  if (!val || !trust(this.socket.remoteAddress, 0)) {
+    val = this.get('Host');
+  } else if (val.indexOf(',') !== -1) {
+    // Note: X-Forwarded-Host is normally only ever a
+    //       single value, but this is to be safe.
+    val = val.substring(0, val.indexOf(',')).trimRight()
+  }
+
+  return val || undefined;
+});
+
+/**
+ * Parse the "Host" header field to a hostname.
+ *
+ * When the "trust proxy" setting trusts the socket
+ * address, the "X-Forwarded-Host" header field will
+ * be trusted.
+ *
+ * @return {String}
+ * @api public
+ */
+
+defineGetter(req, 'hostname', function hostname(){
+  var host = this.host;
+
+  if (!host) return;
+
+  // IPv6 literal support
+  var offset = host[0] === '['
+    ? host.indexOf(']') + 1
+    : 0;
+  var index = host.indexOf(':', offset);
+
+  return index !== -1
+    ? host.substring(0, index)
+    : host;
+});
+
+/**
+ * Check if the request is fresh, aka
+ * Last-Modified or the ETag
+ * still match.
+ *
+ * @return {Boolean}
+ * @public
+ */
+
+defineGetter(req, 'fresh', function(){
+  var method = this.method;
+  var res = this.res
+  var status = res.statusCode
+
+  // GET or HEAD for weak freshness validation only
+  if ('GET' !== method && 'HEAD' !== method) return false;
+
+  // 2xx or 304 as per rfc2616 14.26
+  if ((status >= 200 && status < 300) || 304 === status) {
+    return fresh(this.headers, {
+      'etag': res.get('ETag'),
+      'last-modified': res.get('Last-Modified')
+    })
+  }
+
+  return false;
+});
+
+/**
+ * Check if the request is stale, aka
+ * "Last-Modified" and / or the "ETag" for the
+ * resource has changed.
+ *
+ * @return {Boolean}
+ * @public
+ */
+
+defineGetter(req, 'stale', function stale(){
+  return !this.fresh;
+});
+
+/**
+ * Check if the request was an _XMLHttpRequest_.
+ *
+ * @return {Boolean}
+ * @public
+ */
+
+defineGetter(req, 'xhr', function xhr(){
+  var val = this.get('X-Requested-With') || '';
+  return val.toLowerCase() === 'xmlhttprequest';
+});
+
+/**
+ * Helper function for creating a getter on an object.
+ *
+ * @param {Object} obj
+ * @param {String} name
+ * @param {Function} getter
+ * @private
+ */
+function defineGetter(obj, name, getter) {
+  Object.defineProperty(obj, name, {
+    configurable: true,
+    enumerable: true,
+    get: getter
+  });
+}

node_modules/express/lib/response.js

@@ -0,0 +1,1053 @@
+/*!
+ * express
+ * Copyright(c) 2009-2013 TJ Holowaychuk
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var contentDisposition = require('content-disposition');
+var createError = require('http-errors')
+var deprecate = require('depd')('express');
+var encodeUrl = require('encodeurl');
+var escapeHtml = require('escape-html');
+var http = require('node:http');
+var onFinished = require('on-finished');
+var mime = require('mime-types')
+var path = require('node:path');
+var pathIsAbsolute = require('node:path').isAbsolute;
+var statuses = require('statuses')
+var sign = require('cookie-signature').sign;
+var normalizeType = require('./utils').normalizeType;
+var normalizeTypes = require('./utils').normalizeTypes;
+var setCharset = require('./utils').setCharset;
+var cookie = require('cookie');
+var send = require('send');
+var extname = path.extname;
+var resolve = path.resolve;
+var vary = require('vary');
+const { Buffer } = require('node:buffer');
+
+/**
+ * Response prototype.
+ * @public
+ */
+
+var res = Object.create(http.ServerResponse.prototype)
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = res
+
+/**
+ * Set the HTTP status code for the response.
+ *
+ * Expects an integer value between 100 and 999 inclusive.
+ * Throws an error if the provided status code is not an integer or if it's outside the allowable range.
+ *
+ * @param {number} code - The HTTP status code to set.
+ * @return {ServerResponse} - Returns itself for chaining methods.
+ * @throws {TypeError} If `code` is not an integer.
+ * @throws {RangeError} If `code` is outside the range 100 to 999.
+ * @public
+ */
+
+res.status = function status(code) {
+  // Check if the status code is not an integer
+  if (!Number.isInteger(code)) {
+    throw new TypeError(`Invalid status code: ${JSON.stringify(code)}. Status code must be an integer.`);
+  }
+  // Check if the status code is outside of Node's valid range
+  if (code < 100 || code > 999) {
+    throw new RangeError(`Invalid status code: ${JSON.stringify(code)}. Status code must be greater than 99 and less than 1000.`);
+  }
+
+  this.statusCode = code;
+  return this;
+};
+
+/**
+ * Set Link header field with the given `links`.
+ *
+ * Examples:
+ *
+ *    res.links({
+ *      next: 'http://api.example.com/users?page=2',
+ *      last: 'http://api.example.com/users?page=5',
+ *      pages: [
+ *        'http://api.example.com/users?page=1',
+ *        'http://api.example.com/users?page=2'
+ *      ]
+ *    });
+ *
+ * @param {Object} links
+ * @return {ServerResponse}
+ * @public
+ */
+
+res.links = function(links) {
+  var link = this.get('Link') || '';
+  if (link) link += ', ';
+  return this.set('Link', link + Object.keys(links).map(function(rel) {
+    // Allow multiple links if links[rel] is an array
+    if (Array.isArray(links[rel])) {
+      return links[rel].map(function (singleLink) {
+        return `<${singleLink}>; rel="${rel}"`;
+      }).join(', ');
+    } else {
+      return `<${links[rel]}>; rel="${rel}"`;
+    }
+  }).join(', '));
+};
+
+/**
+ * Send a response.
+ *
+ * Examples:
+ *
+ *     res.send(Buffer.from('wahoo'));
+ *     res.send({ some: 'json' });
+ *     res.send('<p>some html</p>');
+ *
+ * @param {string|number|boolean|object|Buffer} body
+ * @public
+ */
+
+res.send = function send(body) {
+  var chunk = body;
+  var encoding;
+  var req = this.req;
+  var type;
+
+  // settings
+  var app = this.app;
+
+  switch (typeof chunk) {
+    // string defaulting to html
+    case 'string':
+      if (!this.get('Content-Type')) {
+        this.type('html');
+      }
+      break;
+    case 'boolean':
+    case 'number':
+    case 'object':
+      if (chunk === null) {
+        chunk = '';
+      } else if (ArrayBuffer.isView(chunk)) {
+        if (!this.get('Content-Type')) {
+          this.type('bin');
+        }
+      } else {
+        return this.json(chunk);
+      }
+      break;
+  }
+
+  // write strings in utf-8
+  if (typeof chunk === 'string') {
+    encoding = 'utf8';
+    type = this.get('Content-Type');
+
+    // reflect this in content-type
+    if (typeof type === 'string') {
+      this.set('Content-Type', setCharset(type, 'utf-8'));
+    }
+  }
+
+  // determine if ETag should be generated
+  var etagFn = app.get('etag fn')
+  var generateETag = !this.get('ETag') && typeof etagFn === 'function'
+
+  // populate Content-Length
+  var len
+  if (chunk !== undefined) {
+    if (Buffer.isBuffer(chunk)) {
+      // get length of Buffer
+      len = chunk.length
+    } else if (!generateETag && chunk.length < 1000) {
+      // just calculate length when no ETag + small chunk
+      len = Buffer.byteLength(chunk, encoding)
+    } else {
+      // convert chunk to Buffer and calculate
+      chunk = Buffer.from(chunk, encoding)
+      encoding = undefined;
+      len = chunk.length
+    }
+
+    this.set('Content-Length', len);
+  }
+
+  // populate ETag
+  var etag;
+  if (generateETag && len !== undefined) {
+    if ((etag = etagFn(chunk, encoding))) {
+      this.set('ETag', etag);
+    }
+  }
+
+  // freshness
+  if (req.fresh) this.status(304);
+
+  // strip irrelevant headers
+  if (204 === this.statusCode || 304 === this.statusCode) {
+    this.removeHeader('Content-Type');
+    this.removeHeader('Content-Length');
+    this.removeHeader('Transfer-Encoding');
+    chunk = '';
+  }
+
+  // alter headers for 205
+  if (this.statusCode === 205) {
+    this.set('Content-Length', '0')
+    this.removeHeader('Transfer-Encoding')
+    chunk = ''
+  }
+
+  if (req.method === 'HEAD') {
+    // skip body for HEAD
+    this.end();
+  } else {
+    // respond
+    this.end(chunk, encoding);
+  }
+
+  return this;
+};
+
+/**
+ * Send JSON response.
+ *
+ * Examples:
+ *
+ *     res.json(null);
+ *     res.json({ user: 'tj' });
+ *
+ * @param {string|number|boolean|object} obj
+ * @public
+ */
+
+res.json = function json(obj) {
+  // settings
+  var app = this.app;
+  var escape = app.get('json escape')
+  var replacer = app.get('json replacer');
+  var spaces = app.get('json spaces');
+  var body = stringify(obj, replacer, spaces, escape)
+
+  // content-type
+  if (!this.get('Content-Type')) {
+    this.set('Content-Type', 'application/json');
+  }
+
+  return this.send(body);
+};
+
+/**
+ * Send JSON response with JSONP callback support.
+ *
+ * Examples:
+ *
+ *     res.jsonp(null);
+ *     res.jsonp({ user: 'tj' });
+ *
+ * @param {string|number|boolean|object} obj
+ * @public
+ */
+
+res.jsonp = function jsonp(obj) {
+  // settings
+  var app = this.app;
+  var escape = app.get('json escape')
+  var replacer = app.get('json replacer');
+  var spaces = app.get('json spaces');
+  var body = stringify(obj, replacer, spaces, escape)
+  var callback = this.req.query[app.get('jsonp callback name')];
+
+  // content-type
+  if (!this.get('Content-Type')) {
+    this.set('X-Content-Type-Options', 'nosniff');
+    this.set('Content-Type', 'application/json');
+  }
+
+  // fixup callback
+  if (Array.isArray(callback)) {
+    callback = callback[0];
+  }
+
+  // jsonp
+  if (typeof callback === 'string' && callback.length !== 0) {
+    this.set('X-Content-Type-Options', 'nosniff');
+    this.set('Content-Type', 'text/javascript');
+
+    // restrict callback charset
+    callback = callback.replace(/[^\[\]\w$.]/g, '');
+
+    if (body === undefined) {
+      // empty argument
+      body = ''
+    } else if (typeof body === 'string') {
+      // replace chars not allowed in JavaScript that are in JSON
+      body = body
+        .replace(/\u2028/g, '\\u2028')
+        .replace(/\u2029/g, '\\u2029')
+    }
+
+    // the /**/ is a specific security mitigation for "Rosetta Flash JSONP abuse"
+    // the typeof check is just to reduce client error noise
+    body = '/**/ typeof ' + callback + ' === \'function\' && ' + callback + '(' + body + ');';
+  }
+
+  return this.send(body);
+};
+
+/**
+ * Send given HTTP status code.
+ *
+ * Sets the response status to `statusCode` and the body of the
+ * response to the standard description from node's http.STATUS_CODES
+ * or the statusCode number if no description.
+ *
+ * Examples:
+ *
+ *     res.sendStatus(200);
+ *
+ * @param {number} statusCode
+ * @public
+ */
+
+res.sendStatus = function sendStatus(statusCode) {
+  var body = statuses.message[statusCode] || String(statusCode)
+
+  this.status(statusCode);
+  this.type('txt');
+
+  return this.send(body);
+};
+
+/**
+ * Transfer the file at the given `path`.
+ *
+ * Automatically sets the _Content-Type_ response header field.
+ * The callback `callback(err)` is invoked when the transfer is complete
+ * or when an error occurs. Be sure to check `res.headersSent`
+ * if you wish to attempt responding, as the header and some data
+ * may have already been transferred.
+ *
+ * Options:
+ *
+ *   - `maxAge`   defaulting to 0 (can be string converted by `ms`)
+ *   - `root`     root directory for relative filenames
+ *   - `headers`  object of headers to serve with file
+ *   - `dotfiles` serve dotfiles, defaulting to false; can be `"allow"` to send them
+ *
+ * Other options are passed along to `send`.
+ *
+ * Examples:
+ *
+ *  The following example illustrates how `res.sendFile()` may
+ *  be used as an alternative for the `static()` middleware for
+ *  dynamic situations. The code backing `res.sendFile()` is actually
+ *  the same code, so HTTP cache support etc is identical.
+ *
+ *     app.get('/user/:uid/photos/:file', function(req, res){
+ *       var uid = req.params.uid
+ *         , file = req.params.file;
+ *
+ *       req.user.mayViewFilesFrom(uid, function(yes){
+ *         if (yes) {
+ *           res.sendFile('/uploads/' + uid + '/' + file);
+ *         } else {
+ *           res.send(403, 'Sorry! you cant see that.');
+ *         }
+ *       });
+ *     });
+ *
+ * @public
+ */
+
+res.sendFile = function sendFile(path, options, callback) {
+  var done = callback;
+  var req = this.req;
+  var res = this;
+  var next = req.next;
+  var opts = options || {};
+
+  if (!path) {
+    throw new TypeError('path argument is required to res.sendFile');
+  }
+
+  if (typeof path !== 'string') {
+    throw new TypeError('path must be a string to res.sendFile')
+  }
+
+  // support function as second arg
+  if (typeof options === 'function') {
+    done = options;
+    opts = {};
+  }
+
+  if (!opts.root && !pathIsAbsolute(path)) {
+    throw new TypeError('path must be absolute or specify root to res.sendFile');
+  }
+
+  // create file stream
+  var pathname = encodeURI(path);
+
+  // wire application etag option to send
+  opts.etag = this.app.enabled('etag');
+  var file = send(req, pathname, opts);
+
+  // transfer
+  sendfile(res, file, opts, function (err) {
+    if (done) return done(err);
+    if (err && err.code === 'EISDIR') return next();
+
+    // next() all but write errors
+    if (err && err.code !== 'ECONNABORTED' && err.syscall !== 'write') {
+      next(err);
+    }
+  });
+};
+
+/**
+ * Transfer the file at the given `path` as an attachment.
+ *
+ * Optionally providing an alternate attachment `filename`,
+ * and optional callback `callback(err)`. The callback is invoked
+ * when the data transfer is complete, or when an error has
+ * occurred. Be sure to check `res.headersSent` if you plan to respond.
+ *
+ * Optionally providing an `options` object to use with `res.sendFile()`.
+ * This function will set the `Content-Disposition` header, overriding
+ * any `Content-Disposition` header passed as header options in order
+ * to set the attachment and filename.
+ *
+ * This method uses `res.sendFile()`.
+ *
+ * @public
+ */
+
+res.download = function download (path, filename, options, callback) {
+  var done = callback;
+  var name = filename;
+  var opts = options || null
+
+  // support function as second or third arg
+  if (typeof filename === 'function') {
+    done = filename;
+    name = null;
+    opts = null
+  } else if (typeof options === 'function') {
+    done = options
+    opts = null
+  }
+
+  // support optional filename, where options may be in it's place
+  if (typeof filename === 'object' &&
+    (typeof options === 'function' || options === undefined)) {
+    name = null
+    opts = filename
+  }
+
+  // set Content-Disposition when file is sent
+  var headers = {
+    'Content-Disposition': contentDisposition(name || path)
+  };
+
+  // merge user-provided headers
+  if (opts && opts.headers) {
+    var keys = Object.keys(opts.headers)
+    for (var i = 0; i < keys.length; i++) {
+      var key = keys[i]
+      if (key.toLowerCase() !== 'content-disposition') {
+        headers[key] = opts.headers[key]
+      }
+    }
+  }
+
+  // merge user-provided options
+  opts = Object.create(opts)
+  opts.headers = headers
+
+  // Resolve the full path for sendFile
+  var fullPath = !opts.root
+    ? resolve(path)
+    : path
+
+  // send file
+  return this.sendFile(fullPath, opts, done)
+};
+
+/**
+ * Set _Content-Type_ response header with `type` through `mime.contentType()`
+ * when it does not contain "/", or set the Content-Type to `type` otherwise.
+ * When no mapping is found though `mime.contentType()`, the type is set to
+ * "application/octet-stream".
+ *
+ * Examples:
+ *
+ *     res.type('.html');
+ *     res.type('html');
+ *     res.type('json');
+ *     res.type('application/json');
+ *     res.type('png');
+ *
+ * @param {String} type
+ * @return {ServerResponse} for chaining
+ * @public
+ */
+
+res.contentType =
+res.type = function contentType(type) {
+  var ct = type.indexOf('/') === -1
+    ? (mime.contentType(type) || 'application/octet-stream')
+    : type;
+
+  return this.set('Content-Type', ct);
+};
+
+/**
+ * Respond to the Acceptable formats using an `obj`
+ * of mime-type callbacks.
+ *
+ * This method uses `req.accepted`, an array of
+ * acceptable types ordered by their quality values.
+ * When "Accept" is not present the _first_ callback
+ * is invoked, otherwise the first match is used. When
+ * no match is performed the server responds with
+ * 406 "Not Acceptable".
+ *
+ * Content-Type is set for you, however if you choose
+ * you may alter this within the callback using `res.type()`
+ * or `res.set('Content-Type', ...)`.
+ *
+ *    res.format({
+ *      'text/plain': function(){
+ *        res.send('hey');
+ *      },
+ *
+ *      'text/html': function(){
+ *        res.send('<p>hey</p>');
+ *      },
+ *
+ *      'application/json': function () {
+ *        res.send({ message: 'hey' });
+ *      }
+ *    });
+ *
+ * In addition to canonicalized MIME types you may
+ * also use extnames mapped to these types:
+ *
+ *    res.format({
+ *      text: function(){
+ *        res.send('hey');
+ *      },
+ *
+ *      html: function(){
+ *        res.send('<p>hey</p>');
+ *      },
+ *
+ *      json: function(){
+ *        res.send({ message: 'hey' });
+ *      }
+ *    });
+ *
+ * By default Express passes an `Error`
+ * with a `.status` of 406 to `next(err)`
+ * if a match is not made. If you provide
+ * a `.default` callback it will be invoked
+ * instead.
+ *
+ * @param {Object} obj
+ * @return {ServerResponse} for chaining
+ * @public
+ */
+
+res.format = function(obj){
+  var req = this.req;
+  var next = req.next;
+
+  var keys = Object.keys(obj)
+    .filter(function (v) { return v !== 'default' })
+
+  var key = keys.length > 0
+    ? req.accepts(keys)
+    : false;
+
+  this.vary("Accept");
+
+  if (key) {
+    this.set('Content-Type', normalizeType(key).value);
+    obj[key](req, this, next);
+  } else if (obj.default) {
+    obj.default(req, this, next)
+  } else {
+    next(createError(406, {
+      types: normalizeTypes(keys).map(function (o) { return o.value })
+    }))
+  }
+
+  return this;
+};
+
+/**
+ * Set _Content-Disposition_ header to _attachment_ with optional `filename`.
+ *
+ * @param {String} filename
+ * @return {ServerResponse}
+ * @public
+ */
+
+res.attachment = function attachment(filename) {
+  if (filename) {
+    this.type(extname(filename));
+  }
+
+  this.set('Content-Disposition', contentDisposition(filename));
+
+  return this;
+};
+
+/**
+ * Append additional header `field` with value `val`.
+ *
+ * Example:
+ *
+ *    res.append('Link', ['<http://localhost/>', '<http://localhost:3000/>']);
+ *    res.append('Set-Cookie', 'foo=bar; Path=/; HttpOnly');
+ *    res.append('Warning', '199 Miscellaneous warning');
+ *
+ * @param {String} field
+ * @param {String|Array} val
+ * @return {ServerResponse} for chaining
+ * @public
+ */
+
+res.append = function append(field, val) {
+  var prev = this.get(field);
+  var value = val;
+
+  if (prev) {
+    // concat the new and prev vals
+    value = Array.isArray(prev) ? prev.concat(val)
+      : Array.isArray(val) ? [prev].concat(val)
+        : [prev, val]
+  }
+
+  return this.set(field, value);
+};
+
+/**
+ * Set header `field` to `val`, or pass
+ * an object of header fields.
+ *
+ * Examples:
+ *
+ *    res.set('Foo', ['bar', 'baz']);
+ *    res.set('Accept', 'application/json');
+ *    res.set({ Accept: 'text/plain', 'X-API-Key': 'tobi' });
+ *
+ * Aliased as `res.header()`.
+ *
+ * When the set header is "Content-Type", the type is expanded to include
+ * the charset if not present using `mime.contentType()`.
+ *
+ * @param {String|Object} field
+ * @param {String|Array} val
+ * @return {ServerResponse} for chaining
+ * @public
+ */
+
+res.set =
+res.header = function header(field, val) {
+  if (arguments.length === 2) {
+    var value = Array.isArray(val)
+      ? val.map(String)
+      : String(val);
+
+    // add charset to content-type
+    if (field.toLowerCase() === 'content-type') {
+      if (Array.isArray(value)) {
+        throw new TypeError('Content-Type cannot be set to an Array');
+      }
+      value = mime.contentType(value)
+    }
+
+    this.setHeader(field, value);
+  } else {
+    for (var key in field) {
+      this.set(key, field[key]);
+    }
+  }
+  return this;
+};
+
+/**
+ * Get value for header `field`.
+ *
+ * @param {String} field
+ * @return {String}
+ * @public
+ */
+
+res.get = function(field){
+  return this.getHeader(field);
+};
+
+/**
+ * Clear cookie `name`.
+ *
+ * @param {String} name
+ * @param {Object} [options]
+ * @return {ServerResponse} for chaining
+ * @public
+ */
+
+res.clearCookie = function clearCookie(name, options) {
+  // Force cookie expiration by setting expires to the past
+  const opts = { path: '/', ...options, expires: new Date(1)};
+  // ensure maxAge is not passed
+  delete opts.maxAge
+
+  return this.cookie(name, '', opts);
+};
+
+/**
+ * Set cookie `name` to `value`, with the given `options`.
+ *
+ * Options:
+ *
+ *    - `maxAge`   max-age in milliseconds, converted to `expires`
+ *    - `signed`   sign the cookie
+ *    - `path`     defaults to "/"
+ *
+ * Examples:
+ *
+ *    // "Remember Me" for 15 minutes
+ *    res.cookie('rememberme', '1', { expires: new Date(Date.now() + 900000), httpOnly: true });
+ *
+ *    // same as above
+ *    res.cookie('rememberme', '1', { maxAge: 900000, httpOnly: true })
+ *
+ * @param {String} name
+ * @param {String|Object} value
+ * @param {Object} [options]
+ * @return {ServerResponse} for chaining
+ * @public
+ */
+
+res.cookie = function (name, value, options) {
+  var opts = { ...options };
+  var secret = this.req.secret;
+  var signed = opts.signed;
+
+  if (signed && !secret) {
+    throw new Error('cookieParser("secret") required for signed cookies');
+  }
+
+  var val = typeof value === 'object'
+    ? 'j:' + JSON.stringify(value)
+    : String(value);
+
+  if (signed) {
+    val = 's:' + sign(val, secret);
+  }
+
+  if (opts.maxAge != null) {
+    var maxAge = opts.maxAge - 0
+
+    if (!isNaN(maxAge)) {
+      opts.expires = new Date(Date.now() + maxAge)
+      opts.maxAge = Math.floor(maxAge / 1000)
+    }
+  }
+
+  if (opts.path == null) {
+    opts.path = '/';
+  }
+
+  this.append('Set-Cookie', cookie.serialize(name, String(val), opts));
+
+  return this;
+};
+
+/**
+ * Set the location header to `url`.
+ *
+ * The given `url` can also be "back", which redirects
+ * to the _Referrer_ or _Referer_ headers or "/".
+ *
+ * Examples:
+ *
+ *    res.location('/foo/bar').;
+ *    res.location('http://example.com');
+ *    res.location('../login');
+ *
+ * @param {String} url
+ * @return {ServerResponse} for chaining
+ * @public
+ */
+
+res.location = function location(url) {
+  return this.set('Location', encodeUrl(url));
+};
+
+/**
+ * Redirect to the given `url` with optional response `status`
+ * defaulting to 302.
+ *
+ * Examples:
+ *
+ *    res.redirect('/foo/bar');
+ *    res.redirect('http://example.com');
+ *    res.redirect(301, 'http://example.com');
+ *    res.redirect('../login'); // /blog/post/1 -> /blog/login
+ *
+ * @public
+ */
+
+res.redirect = function redirect(url) {
+  var address = url;
+  var body;
+  var status = 302;
+
+  // allow status / url
+  if (arguments.length === 2) {
+    status = arguments[0]
+    address = arguments[1]
+  }
+
+  if (!address) {
+    deprecate('Provide a url argument');
+  }
+
+  if (typeof address !== 'string') {
+    deprecate('Url must be a string');
+  }
+
+  if (typeof status !== 'number') {
+    deprecate('Status must be a number');
+  }
+
+  // Set location header
+  address = this.location(address).get('Location');
+
+  // Support text/{plain,html} by default
+  this.format({
+    text: function(){
+      body = statuses.message[status] + '. Redirecting to ' + address
+    },
+
+    html: function(){
+      var u = escapeHtml(address);
+      body = '<p>' + statuses.message[status] + '. Redirecting to ' + u + '</p>'
+    },
+
+    default: function(){
+      body = '';
+    }
+  });
+
+  // Respond
+  this.status(status);
+  this.set('Content-Length', Buffer.byteLength(body));
+
+  if (this.req.method === 'HEAD') {
+    this.end();
+  } else {
+    this.end(body);
+  }
+};
+
+/**
+ * Add `field` to Vary. If already present in the Vary set, then
+ * this call is simply ignored.
+ *
+ * @param {Array|String} field
+ * @return {ServerResponse} for chaining
+ * @public
+ */
+
+res.vary = function(field){
+  vary(this, field);
+
+  return this;
+};
+
+/**
+ * Render `view` with the given `options` and optional callback `fn`.
+ * When a callback function is given a response will _not_ be made
+ * automatically, otherwise a response of _200_ and _text/html_ is given.
+ *
+ * Options:
+ *
+ *  - `cache`     boolean hinting to the engine it should cache
+ *  - `filename`  filename of the view being rendered
+ *
+ * @public
+ */
+
+res.render = function render(view, options, callback) {
+  var app = this.req.app;
+  var done = callback;
+  var opts = options || {};
+  var req = this.req;
+  var self = this;
+
+  // support callback function as second arg
+  if (typeof options === 'function') {
+    done = options;
+    opts = {};
+  }
+
+  // merge res.locals
+  opts._locals = self.locals;
+
+  // default callback to respond
+  done = done || function (err, str) {
+    if (err) return req.next(err);
+    self.send(str);
+  };
+
+  // render
+  app.render(view, opts, done);
+};
+
+// pipe the send file stream
+function sendfile(res, file, options, callback) {
+  var done = false;
+  var streaming;
+
+  // request aborted
+  function onaborted() {
+    if (done) return;
+    done = true;
+
+    var err = new Error('Request aborted');
+    err.code = 'ECONNABORTED';
+    callback(err);
+  }
+
+  // directory
+  function ondirectory() {
+    if (done) return;
+    done = true;
+
+    var err = new Error('EISDIR, read');
+    err.code = 'EISDIR';
+    callback(err);
+  }
+
+  // errors
+  function onerror(err) {
+    if (done) return;
+    done = true;
+    callback(err);
+  }
+
+  // ended
+  function onend() {
+    if (done) return;
+    done = true;
+    callback();
+  }
+
+  // file
+  function onfile() {
+    streaming = false;
+  }
+
+  // finished
+  function onfinish(err) {
+    if (err && err.code === 'ECONNRESET') return onaborted();
+    if (err) return onerror(err);
+    if (done) return;
+
+    setImmediate(function () {
+      if (streaming !== false && !done) {
+        onaborted();
+        return;
+      }
+
+      if (done) return;
+      done = true;
+      callback();
+    });
+  }
+
+  // streaming
+  function onstream() {
+    streaming = true;
+  }
+
+  file.on('directory', ondirectory);
+  file.on('end', onend);
+  file.on('error', onerror);
+  file.on('file', onfile);
+  file.on('stream', onstream);
+  onFinished(res, onfinish);
+
+  if (options.headers) {
+    // set headers on successful transfer
+    file.on('headers', function headers(res) {
+      var obj = options.headers;
+      var keys = Object.keys(obj);
+
+      for (var i = 0; i < keys.length; i++) {
+        var k = keys[i];
+        res.setHeader(k, obj[k]);
+      }
+    });
+  }
+
+  // pipe
+  file.pipe(res);
+}
+
+/**
+ * Stringify JSON, like JSON.stringify, but v8 optimized, with the
+ * ability to escape characters that can trigger HTML sniffing.
+ *
+ * @param {*} value
+ * @param {function} replacer
+ * @param {number} spaces
+ * @param {boolean} escape
+ * @returns {string}
+ * @private
+ */
+
+function stringify (value, replacer, spaces, escape) {
+  // v8 checks arguments.length for optimizing simple call
+  // https://bugs.chromium.org/p/v8/issues/detail?id=4730
+  var json = replacer || spaces
+    ? JSON.stringify(value, replacer, spaces)
+    : JSON.stringify(value);
+
+  if (escape && typeof json === 'string') {
+    json = json.replace(/[<>&]/g, function (c) {
+      switch (c.charCodeAt(0)) {
+        case 0x3c:
+          return '\\u003c'
+        case 0x3e:
+          return '\\u003e'
+        case 0x26:
+          return '\\u0026'
+        /* istanbul ignore next: unreachable default */
+        default:
+          return c
+      }
+    })
+  }
+
+  return json
+}

node_modules/express/lib/utils.js

@@ -0,0 +1,271 @@
+/*!
+ * express
+ * Copyright(c) 2009-2013 TJ Holowaychuk
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module dependencies.
+ * @api private
+ */
+
+var { METHODS } = require('node:http');
+var contentType = require('content-type');
+var etag = require('etag');
+var mime = require('mime-types')
+var proxyaddr = require('proxy-addr');
+var qs = require('qs');
+var querystring = require('node:querystring');
+const { Buffer } = require('node:buffer');
+
+
+/**
+ * A list of lowercased HTTP methods that are supported by Node.js.
+ * @api private
+ */
+exports.methods = METHODS.map((method) => method.toLowerCase());
+
+/**
+ * Return strong ETag for `body`.
+ *
+ * @param {String|Buffer} body
+ * @param {String} [encoding]
+ * @return {String}
+ * @api private
+ */
+
+exports.etag = createETagGenerator({ weak: false })
+
+/**
+ * Return weak ETag for `body`.
+ *
+ * @param {String|Buffer} body
+ * @param {String} [encoding]
+ * @return {String}
+ * @api private
+ */
+
+exports.wetag = createETagGenerator({ weak: true })
+
+/**
+ * Normalize the given `type`, for example "html" becomes "text/html".
+ *
+ * @param {String} type
+ * @return {Object}
+ * @api private
+ */
+
+exports.normalizeType = function(type){
+  return ~type.indexOf('/')
+    ? acceptParams(type)
+    : { value: (mime.lookup(type) || 'application/octet-stream'), params: {} }
+};
+
+/**
+ * Normalize `types`, for example "html" becomes "text/html".
+ *
+ * @param {Array} types
+ * @return {Array}
+ * @api private
+ */
+
+exports.normalizeTypes = function(types) {
+  return types.map(exports.normalizeType);
+};
+
+
+/**
+ * Parse accept params `str` returning an
+ * object with `.value`, `.quality` and `.params`.
+ *
+ * @param {String} str
+ * @return {Object}
+ * @api private
+ */
+
+function acceptParams (str) {
+  var length = str.length;
+  var colonIndex = str.indexOf(';');
+  var index = colonIndex === -1 ? length : colonIndex;
+  var ret = { value: str.slice(0, index).trim(), quality: 1, params: {} };
+
+  while (index < length) {
+    var splitIndex = str.indexOf('=', index);
+    if (splitIndex === -1) break;
+
+    var colonIndex = str.indexOf(';', index);
+    var endIndex = colonIndex === -1 ? length : colonIndex;
+
+    if (splitIndex > endIndex) {
+      index = str.lastIndexOf(';', splitIndex - 1) + 1;
+      continue;
+    }
+
+    var key = str.slice(index, splitIndex).trim();
+    var value = str.slice(splitIndex + 1, endIndex).trim();
+
+    if (key === 'q') {
+      ret.quality = parseFloat(value);
+    } else {
+      ret.params[key] = value;
+    }
+
+    index = endIndex + 1;
+  }
+
+  return ret;
+}
+
+/**
+ * Compile "etag" value to function.
+ *
+ * @param  {Boolean|String|Function} val
+ * @return {Function}
+ * @api private
+ */
+
+exports.compileETag = function(val) {
+  var fn;
+
+  if (typeof val === 'function') {
+    return val;
+  }
+
+  switch (val) {
+    case true:
+    case 'weak':
+      fn = exports.wetag;
+      break;
+    case false:
+      break;
+    case 'strong':
+      fn = exports.etag;
+      break;
+    default:
+      throw new TypeError('unknown value for etag function: ' + val);
+  }
+
+  return fn;
+}
+
+/**
+ * Compile "query parser" value to function.
+ *
+ * @param  {String|Function} val
+ * @return {Function}
+ * @api private
+ */
+
+exports.compileQueryParser = function compileQueryParser(val) {
+  var fn;
+
+  if (typeof val === 'function') {
+    return val;
+  }
+
+  switch (val) {
+    case true:
+    case 'simple':
+      fn = querystring.parse;
+      break;
+    case false:
+      break;
+    case 'extended':
+      fn = parseExtendedQueryString;
+      break;
+    default:
+      throw new TypeError('unknown value for query parser function: ' + val);
+  }
+
+  return fn;
+}
+
+/**
+ * Compile "proxy trust" value to function.
+ *
+ * @param  {Boolean|String|Number|Array|Function} val
+ * @return {Function}
+ * @api private
+ */
+
+exports.compileTrust = function(val) {
+  if (typeof val === 'function') return val;
+
+  if (val === true) {
+    // Support plain true/false
+    return function(){ return true };
+  }
+
+  if (typeof val === 'number') {
+    // Support trusting hop count
+    return function(a, i){ return i < val };
+  }
+
+  if (typeof val === 'string') {
+    // Support comma-separated values
+    val = val.split(',')
+      .map(function (v) { return v.trim() })
+  }
+
+  return proxyaddr.compile(val || []);
+}
+
+/**
+ * Set the charset in a given Content-Type string.
+ *
+ * @param {String} type
+ * @param {String} charset
+ * @return {String}
+ * @api private
+ */
+
+exports.setCharset = function setCharset(type, charset) {
+  if (!type || !charset) {
+    return type;
+  }
+
+  // parse type
+  var parsed = contentType.parse(type);
+
+  // set charset
+  parsed.parameters.charset = charset;
+
+  // format type
+  return contentType.format(parsed);
+};
+
+/**
+ * Create an ETag generator function, generating ETags with
+ * the given options.
+ *
+ * @param {object} options
+ * @return {function}
+ * @private
+ */
+
+function createETagGenerator (options) {
+  return function generateETag (body, encoding) {
+    var buf = !Buffer.isBuffer(body)
+      ? Buffer.from(body, encoding)
+      : body
+
+    return etag(buf, options)
+  }
+}
+
+/**
+ * Parse an extended query string with qs.
+ *
+ * @param {String} str
+ * @return {Object}
+ * @private
+ */
+
+function parseExtendedQueryString(str) {
+  return qs.parse(str, {
+    allowPrototypes: true
+  });
+}

node_modules/express/lib/view.js

@@ -0,0 +1,205 @@
+/*!
+ * express
+ * Copyright(c) 2009-2013 TJ Holowaychuk
+ * Copyright(c) 2013 Roman Shtylman
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var debug = require('debug')('express:view');
+var path = require('node:path');
+var fs = require('node:fs');
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var dirname = path.dirname;
+var basename = path.basename;
+var extname = path.extname;
+var join = path.join;
+var resolve = path.resolve;
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = View;
+
+/**
+ * Initialize a new `View` with the given `name`.
+ *
+ * Options:
+ *
+ *   - `defaultEngine` the default template engine name
+ *   - `engines` template engine require() cache
+ *   - `root` root path for view lookup
+ *
+ * @param {string} name
+ * @param {object} options
+ * @public
+ */
+
+function View(name, options) {
+  var opts = options || {};
+
+  this.defaultEngine = opts.defaultEngine;
+  this.ext = extname(name);
+  this.name = name;
+  this.root = opts.root;
+
+  if (!this.ext && !this.defaultEngine) {
+    throw new Error('No default engine was specified and no extension was provided.');
+  }
+
+  var fileName = name;
+
+  if (!this.ext) {
+    // get extension from default engine name
+    this.ext = this.defaultEngine[0] !== '.'
+      ? '.' + this.defaultEngine
+      : this.defaultEngine;
+
+    fileName += this.ext;
+  }
+
+  if (!opts.engines[this.ext]) {
+    // load engine
+    var mod = this.ext.slice(1)
+    debug('require "%s"', mod)
+
+    // default engine export
+    var fn = require(mod).__express
+
+    if (typeof fn !== 'function') {
+      throw new Error('Module "' + mod + '" does not provide a view engine.')
+    }
+
+    opts.engines[this.ext] = fn
+  }
+
+  // store loaded engine
+  this.engine = opts.engines[this.ext];
+
+  // lookup path
+  this.path = this.lookup(fileName);
+}
+
+/**
+ * Lookup view by the given `name`
+ *
+ * @param {string} name
+ * @private
+ */
+
+View.prototype.lookup = function lookup(name) {
+  var path;
+  var roots = [].concat(this.root);
+
+  debug('lookup "%s"', name);
+
+  for (var i = 0; i < roots.length && !path; i++) {
+    var root = roots[i];
+
+    // resolve the path
+    var loc = resolve(root, name);
+    var dir = dirname(loc);
+    var file = basename(loc);
+
+    // resolve the file
+    path = this.resolve(dir, file);
+  }
+
+  return path;
+};
+
+/**
+ * Render with the given options.
+ *
+ * @param {object} options
+ * @param {function} callback
+ * @private
+ */
+
+View.prototype.render = function render(options, callback) {
+  var sync = true;
+
+  debug('render "%s"', this.path);
+
+  // render, normalizing sync callbacks
+  this.engine(this.path, options, function onRender() {
+    if (!sync) {
+      return callback.apply(this, arguments);
+    }
+
+    // copy arguments
+    var args = new Array(arguments.length);
+    var cntx = this;
+
+    for (var i = 0; i < arguments.length; i++) {
+      args[i] = arguments[i];
+    }
+
+    // force callback to be async
+    return process.nextTick(function renderTick() {
+      return callback.apply(cntx, args);
+    });
+  });
+
+  sync = false;
+};
+
+/**
+ * Resolve the file within the given directory.
+ *
+ * @param {string} dir
+ * @param {string} file
+ * @private
+ */
+
+View.prototype.resolve = function resolve(dir, file) {
+  var ext = this.ext;
+
+  // <path>.<ext>
+  var path = join(dir, file);
+  var stat = tryStat(path);
+
+  if (stat && stat.isFile()) {
+    return path;
+  }
+
+  // <path>/index.<ext>
+  path = join(dir, basename(file, ext), 'index' + ext);
+  stat = tryStat(path);
+
+  if (stat && stat.isFile()) {
+    return path;
+  }
+};
+
+/**
+ * Return a stat, maybe.
+ *
+ * @param {string} path
+ * @return {fs.Stats}
+ * @private
+ */
+
+function tryStat(path) {
+  debug('stat "%s"', path);
+
+  try {
+    return fs.statSync(path);
+  } catch (e) {
+    return undefined;
+  }
+}

node_modules/express/package.json

@@ -0,0 +1,99 @@
+{
+  "name": "express",
+  "description": "Fast, unopinionated, minimalist web framework",
+  "version": "5.2.1",
+  "author": "TJ Holowaychuk <tj@vision-media.ca>",
+  "contributors": [
+    "Aaron Heckmann <aaron.heckmann+github@gmail.com>",
+    "Ciaran Jessup <ciaranj@gmail.com>",
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "Guillermo Rauch <rauchg@gmail.com>",
+    "Jonathan Ong <me@jongleberry.com>",
+    "Roman Shtylman <shtylman+expressjs@gmail.com>",
+    "Young Jae Sim <hanul@hanul.me>"
+  ],
+  "license": "MIT",
+  "repository": "expressjs/express",
+  "homepage": "https://expressjs.com/",
+  "funding": {
+    "type": "opencollective",
+    "url": "https://opencollective.com/express"
+  },
+  "keywords": [
+    "express",
+    "framework",
+    "sinatra",
+    "web",
+    "http",
+    "rest",
+    "restful",
+    "router",
+    "app",
+    "api"
+  ],
+  "dependencies": {
+    "accepts": "^2.0.0",
+    "body-parser": "^2.2.1",
+    "content-disposition": "^1.0.0",
+    "content-type": "^1.0.5",
+    "cookie": "^0.7.1",
+    "cookie-signature": "^1.2.1",
+    "debug": "^4.4.0",
+    "depd": "^2.0.0",
+    "encodeurl": "^2.0.0",
+    "escape-html": "^1.0.3",
+    "etag": "^1.8.1",
+    "finalhandler": "^2.1.0",
+    "fresh": "^2.0.0",
+    "http-errors": "^2.0.0",
+    "merge-descriptors": "^2.0.0",
+    "mime-types": "^3.0.0",
+    "on-finished": "^2.4.1",
+    "once": "^1.4.0",
+    "parseurl": "^1.3.3",
+    "proxy-addr": "^2.0.7",
+    "qs": "^6.14.0",
+    "range-parser": "^1.2.1",
+    "router": "^2.2.0",
+    "send": "^1.1.0",
+    "serve-static": "^2.2.0",
+    "statuses": "^2.0.1",
+    "type-is": "^2.0.1",
+    "vary": "^1.1.2"
+  },
+  "devDependencies": {
+    "after": "0.8.2",
+    "connect-redis": "^8.0.1",
+    "cookie-parser": "1.4.7",
+    "cookie-session": "2.1.1",
+    "ejs": "^3.1.10",
+    "eslint": "8.47.0",
+    "express-session": "^1.18.1",
+    "hbs": "4.2.0",
+    "marked": "^15.0.3",
+    "method-override": "3.0.0",
+    "mocha": "^10.7.3",
+    "morgan": "1.10.1",
+    "nyc": "^17.1.0",
+    "pbkdf2-password": "1.2.1",
+    "supertest": "^6.3.0",
+    "vhost": "~3.0.2"
+  },
+  "engines": {
+    "node": ">= 18"
+  },
+  "files": [
+    "LICENSE",
+    "Readme.md",
+    "index.js",
+    "lib/"
+  ],
+  "scripts": {
+    "lint": "eslint .",
+    "lint:fix": "eslint . --fix",
+    "test": "mocha --require test/support/env --reporter spec --check-leaks test/ test/acceptance/",
+    "test-ci": "nyc --exclude examples --exclude test --exclude benchmarks --reporter=lcovonly --reporter=text npm test",
+    "test-cov": "nyc --exclude examples --exclude test --exclude benchmarks --reporter=html --reporter=text npm test",
+    "test-tap": "mocha --require test/support/env --reporter tap --check-leaks test/ test/acceptance/"
+  }
+}