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File Name : application.js

/*!
 * 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 Router = require('./router');
var methods = require('methods');
var middleware = require('./middleware/init');
var query = require('./middleware/query');
var debug = require('debug')('express:application');
var View = require('./view');
var http = require('http');
var compileETag = require('./utils').compileETag;
var compileQueryParser = require('./utils').compileQueryParser;
var compileTrust = require('./utils').compileTrust;
var deprecate = require('depd')('express');
var flatten = require('array-flatten');
var merge = require('utils-merge');
var resolve = require('path').resolve;
var setPrototyeOf = require('setprototypeof')
var slice = Array.prototype.slice;

/**
 * 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() {
  this.cache = {};
  this.engines = {};
  this.settings = {};

this.defaultConfiguration();
};

/**
 * 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', 'extended');
  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
    setPrototyeOf(this.request, parent.request)
    setPrototyeOf(this.response, parent.response)
    setPrototyeOf(this.engines, parent.engines)
    setPrototyeOf(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');
  }

Object.defineProperty(this, 'router', {
    get: function() {
      throw new Error('\'app.router\' is deprecated!\nPlease see the 3.x to 4.x migration guide for details on how to update your app.');
    }
  });
};

/**
 * lazily adds the base router if it has not yet been added.
 *
 * We cannot add the base router in the defaultConfiguration because
 * it reads app settings which might be set after that has run.
 *
 * @private
 */
app.lazyrouter = function lazyrouter() {
  if (!this._router) {
    this._router = new Router({
      caseSensitive: this.enabled('case sensitive routing'),
      strict: this.enabled('strict routing')
    });

this._router.use(query(this.get('query parser fn')));
    this._router.use(middleware.init(this));
  }
};

/**
 * 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) {
  var router = this._router;

// final handler
  var done = callback || finalhandler(req, res, {
    env: this.get('env'),
    onerror: logerror.bind(this)
  });

// no routes
  if (!router) {
    debug('no routes defined on app');
    done();
    return;
  }

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(slice.call(arguments, offset));

if (fns.length === 0) {
    throw new TypeError('app.use() requires middleware functions');
  }

// setup router
  this.lazyrouter();
  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) {
        setPrototyeOf(req, orig.request)
        setPrototyeOf(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) {
  this.lazyrouter();
  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.jade" file Express will invoke the following internally:
 *
 *     app.engine('jade', require('jade').__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 dont 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) {
  this.lazyrouter();

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.get('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);
    }

this.lazyrouter();

var route = this._router.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) {
  this.lazyrouter();

var route = this._router.route(path);
  var args = slice.call(arguments, 1);

for (var i = 0; i < methods.length; i++) {
    route[methods[i]].apply(route, args);
  }

return this;
};

// del -> delete alias

app.del = deprecate.function(app.delete, 'app.del: Use app.delete instead');

/**
 * 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 renderOptions = {};
  var view;

// support callback function as second arg
  if (typeof options === 'function') {
    done = options;
    opts = {};
  }

// merge app.locals
  merge(renderOptions, this.locals);

// merge options._locals
  if (opts._locals) {
    merge(renderOptions, opts._locals);
  }

// merge options
  merge(renderOptions, 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('http')
 *      , https = require('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);
  return server.listen.apply(server, arguments);
};

/**
 * 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);
  }
}

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Name	Type	Size	Permission	Last Modified	Actions
.	dir	-	0755	2021-11-10 09:12:48	Buat Folder Buat File Info
..	dir	-	0755	2021-11-10 09:12:48
middleware	dir	-	0755	2021-11-10 09:12:48	rename chmod hapus
router	dir	-	0755	2021-11-10 09:12:48	rename chmod hapus
application.js	text/plain	13.93 KB	0644	2017-03-01 11:12:50	edit rename chmod hapus
express.js	text/plain	2.17 KB	0644	2017-03-01 11:12:50	edit rename chmod hapus
request.js	text/plain	11.93 KB	0644	2017-03-01 11:12:50	edit rename chmod hapus
response.js	text/plain	24.57 KB	0644	2017-03-01 11:12:50	edit rename chmod hapus
utils.js	text/plain	5.69 KB	0644	2017-02-05 03:35:18	edit rename chmod hapus
view.js	text/plain	3.12 KB	0644	2017-03-01 11:12:50	edit rename chmod hapus