제출

+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:">
+   </FileRef>
+</Workspace>

+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>

+{
+  "object": {
+    "pins": [
+      {
+        "package": "Kingfisher",
+        "repositoryURL": "https://github.com/onevcat/Kingfisher",
+        "state": {
+          "branch": "master",
+          "revision": "0c02c46cfdc0656ce74fd0963a75e5000a0b7f23",
+          "version": null
+        }
+      }
+    ]
+  },
+  "version": 1
+}

+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>client.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>

+//
+//  AppDelegate.swift
+//  client
+//
+//  Created by 김우재 on 2021/12/10.
+//
+
+import UIKit
+
+@main
+class AppDelegate: UIResponder, UIApplicationDelegate {
+
+
+
+    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
+        // Override point for customization after application launch.
+        return true
+    }
+
+    // MARK: UISceneSession Lifecycle
+
+    func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {
+        // Called when a new scene session is being created.
+        // Use this method to select a configuration to create the new scene with.
+        return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
+    }
+
+    func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {
+        // Called when the user discards a scene session.
+        // If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.
+        // Use this method to release any resources that were specific to the discarded scenes, as they will not return.
+    }
+
+
+}
+

+{
+  "colors" : [
+    {
+      "idiom" : "universal"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

+{
+  "images" : [
+    {
+      "idiom" : "iphone",
+      "scale" : "2x",
+      "size" : "20x20"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "3x",
+      "size" : "20x20"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "2x",
+      "size" : "29x29"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "3x",
+      "size" : "29x29"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "2x",
+      "size" : "40x40"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "3x",
+      "size" : "40x40"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "2x",
+      "size" : "60x60"
+    },
+    {
+      "idiom" : "iphone",
+      "scale" : "3x",
+      "size" : "60x60"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "1x",
+      "size" : "20x20"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "2x",
+      "size" : "20x20"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "1x",
+      "size" : "29x29"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "2x",
+      "size" : "29x29"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "1x",
+      "size" : "40x40"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "2x",
+      "size" : "40x40"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "1x",
+      "size" : "76x76"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "2x",
+      "size" : "76x76"
+    },
+    {
+      "idiom" : "ipad",
+      "scale" : "2x",
+      "size" : "83.5x83.5"
+    },
+    {
+      "idiom" : "ios-marketing",
+      "scale" : "1x",
+      "size" : "1024x1024"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

+{
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <dependencies>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <color key="backgroundColor" xcode11CocoaTouchSystemColor="systemBackgroundColor" cocoaTouchSystemColor="whiteColor"/>
+                        <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>

+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>UIApplicationSceneManifest</key>
+	<dict>
+		<key>UIApplicationSupportsMultipleScenes</key>
+		<false/>
+		<key>UISceneConfigurations</key>
+		<dict>
+			<key>UIWindowSceneSessionRoleApplication</key>
+			<array>
+				<dict>
+					<key>UISceneConfigurationName</key>
+					<string>Default Configuration</string>
+					<key>UISceneDelegateClassName</key>
+					<string>$(PRODUCT_MODULE_NAME).SceneDelegate</string>
+					<key>UISceneStoryboardFile</key>
+					<string>Main</string>
+				</dict>
+			</array>
+		</dict>
+	</dict>
+</dict>
+</plist>

+//
+//  SceneDelegate.swift
+//  client
+//
+//  Created by 김우재 on 2021/12/10.
+//
+
+import UIKit
+
+class SceneDelegate: UIResponder, UIWindowSceneDelegate {
+
+    var window: UIWindow?
+
+
+    func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {
+        // Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`.
+        // If using a storyboard, the `window` property will automatically be initialized and attached to the scene.
+        // This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).
+        guard let _ = (scene as? UIWindowScene) else { return }
+    }
+
+    func sceneDidDisconnect(_ scene: UIScene) {
+        // Called as the scene is being released by the system.
+        // This occurs shortly after the scene enters the background, or when its session is discarded.
+        // Release any resources associated with this scene that can be re-created the next time the scene connects.
+        // The scene may re-connect later, as its session was not necessarily discarded (see `application:didDiscardSceneSessions` instead).
+    }
+
+    func sceneDidBecomeActive(_ scene: UIScene) {
+        // Called when the scene has moved from an inactive state to an active state.
+        // Use this method to restart any tasks that were paused (or not yet started) when the scene was inactive.
+    }
+
+    func sceneWillResignActive(_ scene: UIScene) {
+        // Called when the scene will move from an active state to an inactive state.
+        // This may occur due to temporary interruptions (ex. an incoming phone call).
+    }
+
+    func sceneWillEnterForeground(_ scene: UIScene) {
+        // Called as the scene transitions from the background to the foreground.
+        // Use this method to undo the changes made on entering the background.
+    }
+
+    func sceneDidEnterBackground(_ scene: UIScene) {
+        // Called as the scene transitions from the foreground to the background.
+        // Use this method to save data, release shared resources, and store enough scene-specific state information
+        // to restore the scene back to its current state.
+    }
+
+
+}
+

+//
+//  ViewController.swift
+//  client
+//
+//  Created by 김우재 on 2021/12/10.
+//
+
+import UIKit
+import Kingfisher
+
+enum Constants {
+    static let endpoint = "http://localhost:3000"
+    static let getImageURL: (Int) -> URL? = {
+        return URL(string: "\(endpoint)/images/\($0).jpg")
+    }
+    static let postLabelURL: (Int) -> URL? = {
+        return URL(string: "\(endpoint)/label/\($0)")
+    }
+}
+
+
+class ViewController: UIViewController {
+
+    @IBOutlet weak var imageView: UIImageView!
+    @IBOutlet weak var prevButton: UIButton!
+    @IBOutlet weak var nextButton: UIButton!
+    @IBOutlet weak var currentLabel: UILabel!
+    @IBOutlet weak var areaView: UIView!
+
+    let images: [Int] = (1...129).map {$0} + (251...750).map {$0}
+    var currentIndex = 0
+
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        // Do any additional setup after loading the view.
+        setImage(index: currentIndex)
+        setLabel(index: currentIndex)
+        areaView.layer.borderWidth = 3.0
+        areaView.layer.borderColor = UIColor.red.cgColor
+        imageView.addSubview(areaView)
+        print(areaView.frame)
+        
+    }
+
+    func setImage(index: Int) {
+        guard 0..<images.count ~= index else { return }
+        let url = Constants.getImageURL(images[index])
+        imageView.kf.setImage(with: url)
+    }
+    
+    func setLabel(index: Int) {
+        currentLabel.text = "\(index + 1) / \(images.count)"
+    }
+
+    @IBAction func onPrevButtonPressed(_ sender: Any) {
+        currentIndex -= 1
+        setImage(index: currentIndex)
+        setLabel(index: currentIndex)
+    }
+    @IBAction func onNextButtonPressed(_ sender: Any) {
+        currentIndex += 1
+        setImage(index: currentIndex)
+        setLabel(index: currentIndex)
+    }
+    
+    var start: CGPoint = CGPoint(x: 0, y: 0)
+    
+    @IBAction func panGestureRecognized(_ sender: UIPanGestureRecognizer) {
+        switch sender.numberOfTouches {
+        case 1:
+            switch sender.state {
+            case .began:
+                start = areaView.frame.origin
+            case .changed:
+                let transform = sender.translation(in: imageView)
+                areaView.frame.origin = CGPoint(x: start.x + transform.x, y: start.y + transform.y)
+            default:
+                return
+            }
+
+        case 2:
+            switch sender.state {
+            case .began, .changed:
+                let p1 = sender.location(ofTouch: 0, in: imageView)
+                let p2 = sender.location(ofTouch: 1, in: imageView)
+                let minX = min(p1.x, p2.x), maxX = max(p1.x, p2.x)
+                let minY = min(p1.y, p2.y), maxY = max(p1.y, p2.y)
+                areaView.frame = CGRect(x: minX, y: minY, width: maxX-minX, height: maxY-minY)
+            default:
+                return
+            }
+
+        default:
+            return
+        }
+    }
+
+    @IBAction func onSendButtonPressed(_ sender: Any) {
+        let center = areaView.center
+        let size = areaView.frame.size
+        
+        let x = (center.x / imageView.frame.width)
+        let y = center.y / imageView.frame.height
+        let w = size.width / imageView.frame.width
+        let h = size.height / imageView.frame.height
+        
+        print(rounder(x), rounder(y), rounder(w), rounder(h))
+        var json = [String: Any]()
+        json["x"] = rounder(x)
+        json["y"] = rounder(y)
+        json["w"] = rounder(w)
+        json["h"] = rounder(h)
+        do {
+            let data = try JSONSerialization.data(withJSONObject: json, options: [])
+            guard let url = Constants.postLabelURL(images[currentIndex]) else { return }
+            var request = URLRequest(url: url)
+            request.httpMethod = "POST"
+            request.httpBody = data
+            request.addValue("application/json", forHTTPHeaderField: "Content-Type")
+            request.addValue("application/json", forHTTPHeaderField: "Accept")
+            let task = URLSession.shared.dataTask(with: request)
+            task.resume()
+            showToast(message: "라벨 데이터 전송 완료!")
+        } catch {
+            showToast(message: "전송 실패")
+            return
+        }
+    }
+}
+
+
+func rounder(_ num: Double) -> Double {
+    let multiplier = 1000000
+    return (num * Double(multiplier)).rounded() / Double(multiplier)
+}
+
+extension UIViewController {
+
+    func showToast(message: String) {
+        let toastLabel = self.createToastLabel()
+        toastLabel.backgroundColor = UIColor.black.withAlphaComponent(0.6)
+        toastLabel.textColor = UIColor.white
+        toastLabel.font = .systemFont(ofSize: 15)
+        toastLabel.textAlignment = .center
+        toastLabel.text = message
+        toastLabel.numberOfLines = 0
+        toastLabel.alpha = 1.0
+        toastLabel.layer.cornerRadius = 10
+        toastLabel.clipsToBounds = true
+        self.view.addSubview(toastLabel)
+        UIView.animate(withDuration: 1.0, delay: 1.0, options: [], animations: {
+            toastLabel.alpha = 0.0
+        }, completion: { _ in
+            toastLabel.removeFromSuperview()
+        })
+    }
+
+    private func createToastLabel() -> UILabel {
+        return UILabel(
+            frame: CGRect(
+                x: self.view.frame.size.width / 2 - 75,
+                y: self.view.frame.size.height - 100,
+                width: 150,
+                height: 35
+            )
+        )
+    }
+}

+var createError = require('http-errors');
+var express = require('express');
+var path = require('path');
+var cookieParser = require('cookie-parser');
+var logger = require('morgan');
+
+var indexRouter = require('./routes/index');
+var usersRouter = require('./routes/users');
+
+var app = express();
+
+// view engine setup
+app.set('views', path.join(__dirname, 'views'));
+app.set('view engine', 'ejs');
+
+app.use(logger('dev'));
+app.use(express.json());
+app.use(express.urlencoded({ extended: false }));
+app.use(cookieParser());
+app.use(express.static(path.join(__dirname, 'public')));
+
+app.use('/', indexRouter);
+app.use('/users', usersRouter);
+
+// catch 404 and forward to error handler
+app.use(function(req, res, next) {
+  next(createError(404));
+});
+
+// error handler
+app.use(function(err, req, res, next) {
+  // set locals, only providing error in development
+  res.locals.message = err.message;
+  res.locals.error = req.app.get('env') === 'development' ? err : {};
+
+  // render the error page
+  res.status(err.status || 500);
+  res.render('error');
+});
+
+module.exports = app;

+#!/usr/bin/env node
+
+/**
+ * Module dependencies.
+ */
+
+var app = require('../app');
+var debug = require('debug')('server:server');
+var http = require('http');
+
+/**
+ * Get port from environment and store in Express.
+ */
+
+var port = normalizePort(process.env.PORT || '3000');
+app.set('port', port);
+
+/**
+ * Create HTTP server.
+ */
+
+var server = http.createServer(app);
+
+/**
+ * Listen on provided port, on all network interfaces.
+ */
+
+server.listen(port);
+server.on('error', onError);
+server.on('listening', onListening);
+
+/**
+ * Normalize a port into a number, string, or false.
+ */
+
+function normalizePort(val) {
+  var port = parseInt(val, 10);
+
+  if (isNaN(port)) {
+    // named pipe
+    return val;
+  }
+
+  if (port >= 0) {
+    // port number
+    return port;
+  }
+
+  return false;
+}
+
+/**
+ * Event listener for HTTP server "error" event.
+ */
+
+function onError(error) {
+  if (error.syscall !== 'listen') {
+    throw error;
+  }
+
+  var bind = typeof port === 'string'
+    ? 'Pipe ' + port
+    : 'Port ' + port;
+
+  // handle specific listen errors with friendly messages
+  switch (error.code) {
+    case 'EACCES':
+      console.error(bind + ' requires elevated privileges');
+      process.exit(1);
+      break;
+    case 'EADDRINUSE':
+      console.error(bind + ' is already in use');
+      process.exit(1);
+      break;
+    default:
+      throw error;
+  }
+}
+
+/**
+ * Event listener for HTTP server "listening" event.
+ */
+
+function onListening() {
+  var addr = server.address();
+  var bind = typeof addr === 'string'
+    ? 'pipe ' + addr
+    : 'port ' + addr.port;
+  debug('Listening on ' + bind);
+}

+../mime/cli.js
\ No newline at end of file

+1.3.7 / 2019-04-29
+==================
+
+  * deps: negotiator@0.6.2
+    - Fix sorting charset, encoding, and language with extra parameters
+
+1.3.6 / 2019-04-28
+==================
+
+  * deps: mime-types@~2.1.24
+    - deps: mime-db@~1.40.0
+
+1.3.5 / 2018-02-28
+==================
+
+  * deps: mime-types@~2.1.18
+    - deps: mime-db@~1.33.0
+
+1.3.4 / 2017-08-22
+==================
+
+  * deps: mime-types@~2.1.16
+    - deps: mime-db@~1.29.0
+
+1.3.3 / 2016-05-02
+==================
+
+  * deps: mime-types@~2.1.11
+    - deps: mime-db@~1.23.0
+  * deps: negotiator@0.6.1
+    - perf: improve `Accept` parsing speed
+    - perf: improve `Accept-Charset` parsing speed
+    - perf: improve `Accept-Encoding` parsing speed
+    - perf: improve `Accept-Language` parsing speed
+
+1.3.2 / 2016-03-08
+==================
+
+  * deps: mime-types@~2.1.10
+    - Fix extension of `application/dash+xml`
+    - Update primary extension for `audio/mp4`
+    - deps: mime-db@~1.22.0
+
+1.3.1 / 2016-01-19
+==================
+
+  * deps: mime-types@~2.1.9
+    - deps: mime-db@~1.21.0
+
+1.3.0 / 2015-09-29
+==================
+
+  * deps: mime-types@~2.1.7
+    - deps: mime-db@~1.19.0
+  * deps: negotiator@0.6.0
+    - Fix including type extensions in parameters in `Accept` parsing
+    - Fix parsing `Accept` parameters with quoted equals
+    - Fix parsing `Accept` parameters with quoted semicolons
+    - Lazy-load modules from main entry point
+    - perf: delay type concatenation until needed
+    - perf: enable strict mode
+    - perf: hoist regular expressions
+    - perf: remove closures getting spec properties
+    - perf: remove a closure from media type parsing
+    - perf: remove property delete from media type parsing
+
+1.2.13 / 2015-09-06
+===================
+
+  * deps: mime-types@~2.1.6
+    - deps: mime-db@~1.18.0
+
+1.2.12 / 2015-07-30
+===================
+
+  * deps: mime-types@~2.1.4
+    - deps: mime-db@~1.16.0
+
+1.2.11 / 2015-07-16
+===================
+
+  * deps: mime-types@~2.1.3
+    - deps: mime-db@~1.15.0
+
+1.2.10 / 2015-07-01
+===================
+
+  * deps: mime-types@~2.1.2
+    - deps: mime-db@~1.14.0
+
+1.2.9 / 2015-06-08
+==================
+
+  * deps: mime-types@~2.1.1
+    - perf: fix deopt during mapping
+
+1.2.8 / 2015-06-07
+==================
+
+  * deps: mime-types@~2.1.0
+    - deps: mime-db@~1.13.0
+  * perf: avoid argument reassignment & argument slice
+  * perf: avoid negotiator recursive construction
+  * perf: enable strict mode
+  * perf: remove unnecessary bitwise operator
+
+1.2.7 / 2015-05-10
+==================
+
+  * deps: negotiator@0.5.3
+    - Fix media type parameter matching to be case-insensitive
+
+1.2.6 / 2015-05-07
+==================
+
+  * deps: mime-types@~2.0.11
+    - deps: mime-db@~1.9.1
+  * deps: negotiator@0.5.2
+    - Fix comparing media types with quoted values
+    - Fix splitting media types with quoted commas
+
+1.2.5 / 2015-03-13
+==================
+
+  * deps: mime-types@~2.0.10
+    - deps: mime-db@~1.8.0
+
+1.2.4 / 2015-02-14
+==================
+
+  * Support Node.js 0.6
+  * deps: mime-types@~2.0.9
+    - deps: mime-db@~1.7.0
+  * deps: negotiator@0.5.1
+    - Fix preference sorting to be stable for long acceptable lists
+
+1.2.3 / 2015-01-31
+==================
+
+  * deps: mime-types@~2.0.8
+    - deps: mime-db@~1.6.0
+
+1.2.2 / 2014-12-30
+==================
+
+  * deps: mime-types@~2.0.7
+    - deps: mime-db@~1.5.0
+
+1.2.1 / 2014-12-30
+==================
+
+  * deps: mime-types@~2.0.5
+    - deps: mime-db@~1.3.1
+
+1.2.0 / 2014-12-19
+==================
+
+  * deps: negotiator@0.5.0
+    - Fix list return order when large accepted list
+    - Fix missing identity encoding when q=0 exists
+    - Remove dynamic building of Negotiator class
+
+1.1.4 / 2014-12-10
+==================
+
+  * deps: mime-types@~2.0.4
+    - deps: mime-db@~1.3.0
+
+1.1.3 / 2014-11-09
+==================
+
+  * deps: mime-types@~2.0.3
+    - deps: mime-db@~1.2.0
+
+1.1.2 / 2014-10-14
+==================
+
+  * deps: negotiator@0.4.9
+    - Fix error when media type has invalid parameter
+
+1.1.1 / 2014-09-28
+==================
+
+  * deps: mime-types@~2.0.2
+    - deps: mime-db@~1.1.0
+  * deps: negotiator@0.4.8
+    - Fix all negotiations to be case-insensitive
+    - Stable sort preferences of same quality according to client order
+
+1.1.0 / 2014-09-02
+==================
+
+  * update `mime-types`
+
+1.0.7 / 2014-07-04
+==================
+
+  * Fix wrong type returned from `type` when match after unknown extension
+
+1.0.6 / 2014-06-24
+==================
+
+  * deps: negotiator@0.4.7
+
+1.0.5 / 2014-06-20
+==================
+
+ * fix crash when unknown extension given
+
+1.0.4 / 2014-06-19
+==================
+
+  * use `mime-types`
+
+1.0.3 / 2014-06-11
+==================
+
+  * deps: negotiator@0.4.6
+    - Order by specificity when quality is the same
+
+1.0.2 / 2014-05-29
+==================
+
+  * Fix interpretation when header not in request
+  * deps: pin negotiator@0.4.5
+
+1.0.1 / 2014-01-18
+==================
+
+  * Identity encoding isn't always acceptable
+  * deps: negotiator@~0.4.0
+
+1.0.0 / 2013-12-27
+==================
+
+  * Genesis

+(The MIT License)
+
+Copyright (c) 2014 Jonathan Ong <me@jongleberry.com>
+Copyright (c) 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.

+# accepts
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Higher level content negotiation based on [negotiator](https://www.npmjs.com/package/negotiator).
+Extracted from [koa](https://www.npmjs.com/package/koa) for general use.
+
+In addition to negotiator, it allows:
+
+- Allows types as an array or arguments list, ie `(['text/html', 'application/json'])`
+  as well as `('text/html', 'application/json')`.
+- Allows type shorthands such as `json`.
+- Returns `false` when no types match
+- Treats non-existent headers as `*`
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```sh
+$ npm install accepts
+```
+
+## API
+
+<!-- eslint-disable no-unused-vars -->
+
+```js
+var accepts = require('accepts')
+```
+
+### accepts(req)
+
+Create a new `Accepts` object for the given `req`.
+
+#### .charset(charsets)
+
+Return the first accepted charset. If nothing in `charsets` is accepted,
+then `false` is returned.
+
+#### .charsets()
+
+Return the charsets that the request accepts, in the order of the client's
+preference (most preferred first).
+
+#### .encoding(encodings)
+
+Return the first accepted encoding. If nothing in `encodings` is accepted,
+then `false` is returned.
+
+#### .encodings()
+
+Return the encodings that the request accepts, in the order of the client's
+preference (most preferred first).
+
+#### .language(languages)
+
+Return the first accepted language. If nothing in `languages` is accepted,
+then `false` is returned.
+
+#### .languages()
+
+Return the languages that the request accepts, in the order of the client's
+preference (most preferred first).
+
+#### .type(types)
+
+Return the first accepted type (and it is returned as the same text as what
+appears in the `types` array). If nothing in `types` is accepted, then `false`
+is returned.
+
+The `types` array can contain full MIME types or file extensions. Any value
+that is not a full MIME types is passed to `require('mime-types').lookup`.
+
+#### .types()
+
+Return the types that the request accepts, in the order of the client's
+preference (most preferred first).
+
+## Examples
+
+### Simple type negotiation
+
+This simple example shows how to use `accepts` to return a different typed
+respond body based on what the client wants to accept. The server lists it's
+preferences in order and will get back the best match between the client and
+server.
+
+```js
+var accepts = require('accepts')
+var http = require('http')
+
+function app (req, res) {
+  var accept = accepts(req)
+
+  // the order of this list is significant; should be server preferred order
+  switch (accept.type(['json', 'html'])) {
+    case 'json':
+      res.setHeader('Content-Type', 'application/json')
+      res.write('{"hello":"world!"}')
+      break
+    case 'html':
+      res.setHeader('Content-Type', 'text/html')
+      res.write('<b>hello, world!</b>')
+      break
+    default:
+      // the fallback is text/plain, so no need to specify it above
+      res.setHeader('Content-Type', 'text/plain')
+      res.write('hello, world!')
+      break
+  }
+
+  res.end()
+}
+
+http.createServer(app).listen(3000)
+```
+
+You can test this out with the cURL program:
+```sh
+curl -I -H'Accept: text/html' http://localhost:3000/
+```
+
+## License
+
+[MIT](LICENSE)
+
+[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/accepts/master
+[coveralls-url]: https://coveralls.io/r/jshttp/accepts?branch=master
+[node-version-image]: https://badgen.net/npm/node/accepts
+[node-version-url]: https://nodejs.org/en/download
+[npm-downloads-image]: https://badgen.net/npm/dm/accepts
+[npm-url]: https://npmjs.org/package/accepts
+[npm-version-image]: https://badgen.net/npm/v/accepts
+[travis-image]: https://badgen.net/travis/jshttp/accepts/master
+[travis-url]: https://travis-ci.org/jshttp/accepts

+/*!
+ * accepts
+ * Copyright(c) 2014 Jonathan Ong
+ * Copyright(c) 2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var Negotiator = require('negotiator')
+var mime = require('mime-types')
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = Accepts
+
+/**
+ * Create a new Accepts object for the given req.
+ *
+ * @param {object} req
+ * @public
+ */
+
+function Accepts (req) {
+  if (!(this instanceof Accepts)) {
+    return new Accepts(req)
+  }
+
+  this.headers = req.headers
+  this.negotiator = new Negotiator(req)
+}
+
+/**
+ * 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", the extension name
+ * such as "json" 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
+ *     this.types('html');
+ *     // => "html"
+ *
+ *     // Accept: text/*, application/json
+ *     this.types('html');
+ *     // => "html"
+ *     this.types('text/html');
+ *     // => "text/html"
+ *     this.types('json', 'text');
+ *     // => "json"
+ *     this.types('application/json');
+ *     // => "application/json"
+ *
+ *     // Accept: text/*, application/json
+ *     this.types('image/png');
+ *     this.types('png');
+ *     // => undefined
+ *
+ *     // Accept: text/*;q=.5, application/json
+ *     this.types(['html', 'json']);
+ *     this.types('html', 'json');
+ *     // => "json"
+ *
+ * @param {String|Array} types...
+ * @return {String|Array|Boolean}
+ * @public
+ */
+
+Accepts.prototype.type =
+Accepts.prototype.types = function (types_) {
+  var types = types_
+
+  // support flattened arguments
+  if (types && !Array.isArray(types)) {
+    types = new Array(arguments.length)
+    for (var i = 0; i < types.length; i++) {
+      types[i] = arguments[i]
+    }
+  }
+
+  // no types, return all requested types
+  if (!types || types.length === 0) {
+    return this.negotiator.mediaTypes()
+  }
+
+  // no accept header, return first given type
+  if (!this.headers.accept) {
+    return types[0]
+  }
+
+  var mimes = types.map(extToMime)
+  var accepts = this.negotiator.mediaTypes(mimes.filter(validMime))
+  var first = accepts[0]
+
+  return first
+    ? types[mimes.indexOf(first)]
+    : false
+}
+
+/**
+ * Return accepted encodings or best fit based on `encodings`.
+ *
+ * Given `Accept-Encoding: gzip, deflate`
+ * an array sorted by quality is returned:
+ *
+ *     ['gzip', 'deflate']
+ *
+ * @param {String|Array} encodings...
+ * @return {String|Array}
+ * @public
+ */
+
+Accepts.prototype.encoding =
+Accepts.prototype.encodings = function (encodings_) {
+  var encodings = encodings_
+
+  // support flattened arguments
+  if (encodings && !Array.isArray(encodings)) {
+    encodings = new Array(arguments.length)
+    for (var i = 0; i < encodings.length; i++) {
+      encodings[i] = arguments[i]
+    }
+  }
+
+  // no encodings, return all requested encodings
+  if (!encodings || encodings.length === 0) {
+    return this.negotiator.encodings()
+  }
+
+  return this.negotiator.encodings(encodings)[0] || false
+}
+
+/**
+ * Return accepted charsets or best fit based on `charsets`.
+ *
+ * Given `Accept-Charset: utf-8, iso-8859-1;q=0.2, utf-7;q=0.5`
+ * an array sorted by quality is returned:
+ *
+ *     ['utf-8', 'utf-7', 'iso-8859-1']
+ *
+ * @param {String|Array} charsets...
+ * @return {String|Array}
+ * @public
+ */
+
+Accepts.prototype.charset =
+Accepts.prototype.charsets = function (charsets_) {
+  var charsets = charsets_
+
+  // support flattened arguments
+  if (charsets && !Array.isArray(charsets)) {
+    charsets = new Array(arguments.length)
+    for (var i = 0; i < charsets.length; i++) {
+      charsets[i] = arguments[i]
+    }
+  }
+
+  // no charsets, return all requested charsets
+  if (!charsets || charsets.length === 0) {
+    return this.negotiator.charsets()
+  }
+
+  return this.negotiator.charsets(charsets)[0] || false
+}
+
+/**
+ * Return accepted languages or best fit based on `langs`.
+ *
+ * Given `Accept-Language: en;q=0.8, es, pt`
+ * an array sorted by quality is returned:
+ *
+ *     ['es', 'pt', 'en']
+ *
+ * @param {String|Array} langs...
+ * @return {Array|String}
+ * @public
+ */
+
+Accepts.prototype.lang =
+Accepts.prototype.langs =
+Accepts.prototype.language =
+Accepts.prototype.languages = function (languages_) {
+  var languages = languages_
+
+  // support flattened arguments
+  if (languages && !Array.isArray(languages)) {
+    languages = new Array(arguments.length)
+    for (var i = 0; i < languages.length; i++) {
+      languages[i] = arguments[i]
+    }
+  }
+
+  // no languages, return all requested languages
+  if (!languages || languages.length === 0) {
+    return this.negotiator.languages()
+  }
+
+  return this.negotiator.languages(languages)[0] || false
+}
+
+/**
+ * Convert extnames to mime.
+ *
+ * @param {String} type
+ * @return {String}
+ * @private
+ */
+
+function extToMime (type) {
+  return type.indexOf('/') === -1
+    ? mime.lookup(type)
+    : type
+}
+
+/**
+ * Check if mime is valid.
+ *
+ * @param {String} type
+ * @return {String}
+ * @private
+ */
+
+function validMime (type) {
+  return typeof type === 'string'
+}

+{
+  "name": "accepts",
+  "description": "Higher-level content negotiation",
+  "version": "1.3.7",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "Jonathan Ong <me@jongleberry.com> (http://jongleberry.com)"
+  ],
+  "license": "MIT",
+  "repository": "jshttp/accepts",
+  "dependencies": {
+    "mime-types": "~2.1.24",
+    "negotiator": "0.6.2"
+  },
+  "devDependencies": {
+    "deep-equal": "1.0.1",
+    "eslint": "5.16.0",
+    "eslint-config-standard": "12.0.0",
+    "eslint-plugin-import": "2.17.2",
+    "eslint-plugin-markdown": "1.0.0",
+    "eslint-plugin-node": "8.0.1",
+    "eslint-plugin-promise": "4.1.1",
+    "eslint-plugin-standard": "4.0.0",
+    "mocha": "6.1.4",
+    "nyc": "14.0.0"
+  },
+  "files": [
+    "LICENSE",
+    "HISTORY.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.6"
+  },
+  "scripts": {
+    "lint": "eslint --plugin markdown --ext js,md .",
+    "test": "mocha --reporter spec --check-leaks --bail test/",
+    "test-cov": "nyc --reporter=html --reporter=text npm test",
+    "test-travis": "nyc --reporter=text npm test"
+  },
+  "keywords": [
+    "content",
+    "negotiation",
+    "accept",
+    "accepts"
+  ]
+}

+The MIT License (MIT)
+
+Copyright (c) 2014 Blake Embrey (hello@blakeembrey.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.

+# Array Flatten
+
+[![NPM version][npm-image]][npm-url]
+[![NPM downloads][downloads-image]][downloads-url]
+[![Build status][travis-image]][travis-url]
+[![Test coverage][coveralls-image]][coveralls-url]
+
+> Flatten an array of nested arrays into a single flat array. Accepts an optional depth.
+
+## Installation
+
+```
+npm install array-flatten --save
+```
+
+## Usage
+
+```javascript
+var flatten = require('array-flatten')
+
+flatten([1, [2, [3, [4, [5], 6], 7], 8], 9])
+//=> [1, 2, 3, 4, 5, 6, 7, 8, 9]
+
+flatten([1, [2, [3, [4, [5], 6], 7], 8], 9], 2)
+//=> [1, 2, 3, [4, [5], 6], 7, 8, 9]
+
+(function () {
+  flatten(arguments) //=> [1, 2, 3]
+})(1, [2, 3])
+```
+
+## License
+
+MIT
+
+[npm-image]: https://img.shields.io/npm/v/array-flatten.svg?style=flat
+[npm-url]: https://npmjs.org/package/array-flatten
+[downloads-image]: https://img.shields.io/npm/dm/array-flatten.svg?style=flat
+[downloads-url]: https://npmjs.org/package/array-flatten
+[travis-image]: https://img.shields.io/travis/blakeembrey/array-flatten.svg?style=flat
+[travis-url]: https://travis-ci.org/blakeembrey/array-flatten
+[coveralls-image]: https://img.shields.io/coveralls/blakeembrey/array-flatten.svg?style=flat
+[coveralls-url]: https://coveralls.io/r/blakeembrey/array-flatten?branch=master

+'use strict'
+
+/**
+ * Expose `arrayFlatten`.
+ */
+module.exports = arrayFlatten
+
+/**
+ * Recursive flatten function with depth.
+ *
+ * @param  {Array}  array
+ * @param  {Array}  result
+ * @param  {Number} depth
+ * @return {Array}
+ */
+function flattenWithDepth (array, result, depth) {
+  for (var i = 0; i < array.length; i++) {
+    var value = array[i]
+
+    if (depth > 0 && Array.isArray(value)) {
+      flattenWithDepth(value, result, depth - 1)
+    } else {
+      result.push(value)
+    }
+  }
+
+  return result
+}
+
+/**
+ * Recursive flatten function. Omitting depth is slightly faster.
+ *
+ * @param  {Array} array
+ * @param  {Array} result
+ * @return {Array}
+ */
+function flattenForever (array, result) {
+  for (var i = 0; i < array.length; i++) {
+    var value = array[i]
+
+    if (Array.isArray(value)) {
+      flattenForever(value, result)
+    } else {
+      result.push(value)
+    }
+  }
+
+  return result
+}
+
+/**
+ * Flatten an array, with the ability to define a depth.
+ *
+ * @param  {Array}  array
+ * @param  {Number} depth
+ * @return {Array}
+ */
+function arrayFlatten (array, depth) {
+  if (depth == null) {
+    return flattenForever(array, [])
+  }
+
+  return flattenWithDepth(array, [], depth)
+}

+{
+  "name": "array-flatten",
+  "version": "1.1.1",
+  "description": "Flatten an array of nested arrays into a single flat array",
+  "main": "array-flatten.js",
+  "files": [
+    "array-flatten.js",
+    "LICENSE"
+  ],
+  "scripts": {
+    "test": "istanbul cover _mocha -- -R spec"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git://github.com/blakeembrey/array-flatten.git"
+  },
+  "keywords": [
+    "array",
+    "flatten",
+    "arguments",
+    "depth"
+  ],
+  "author": {
+    "name": "Blake Embrey",
+    "email": "hello@blakeembrey.com",
+    "url": "http://blakeembrey.me"
+  },
+  "license": "MIT",
+  "bugs": {
+    "url": "https://github.com/blakeembrey/array-flatten/issues"
+  },
+  "homepage": "https://github.com/blakeembrey/array-flatten",
+  "devDependencies": {
+    "istanbul": "^0.3.13",
+    "mocha": "^2.2.4",
+    "pre-commit": "^1.0.7",
+    "standard": "^3.7.3"
+  }
+}

+2.0.1 / 2018-09-19
+==================
+
+  * deps: safe-buffer@5.1.2
+
+2.0.0 / 2017-09-12
+==================
+
+  * Drop support for Node.js below 0.8
+  * Remove `auth(ctx)` signature -- pass in header or `auth(ctx.req)`
+  * Use `safe-buffer` for improved Buffer API
+
+1.1.0 / 2016-11-18
+==================
+
+  * Add `auth.parse` for low-level string parsing
+
+1.0.4 / 2016-05-10
+==================
+
+  * Improve error message when `req` argument is not an object
+  * Improve error message when `req` missing `headers` property
+
+1.0.3 / 2015-07-01
+==================
+
+  * Fix regression accepting a Koa context
+
+1.0.2 / 2015-06-12
+==================
+
+  * Improve error message when `req` argument missing
+  * perf: enable strict mode
+  * perf: hoist regular expression
+  * perf: parse with regular expressions
+  * perf: remove argument reassignment
+
+1.0.1 / 2015-05-04
+==================
+
+  * Update readme
+
+1.0.0 / 2014-07-01
+==================
+
+  * Support empty password
+  * Support empty username
+
+0.0.1 / 2013-11-30
+==================
+
+  * Initial release

+(The MIT License)
+
+Copyright (c) 2013 TJ Holowaychuk
+Copyright (c) 2014 Jonathan Ong <me@jongleberry.com>
+Copyright (c) 2015-2016 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.

+# basic-auth
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Generic basic auth Authorization header field parser for whatever.
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```
+$ npm install basic-auth
+```
+
+## API
+
+<!-- eslint-disable no-unused-vars -->
+
+```js
+var auth = require('basic-auth')
+```
+
+### auth(req)
+
+Get the basic auth credentials from the given request. The `Authorization`
+header is parsed and if the header is invalid, `undefined` is returned,
+otherwise an object with `name` and `pass` properties.
+
+### auth.parse(string)
+
+Parse a basic auth authorization header string. This will return an object
+with `name` and `pass` properties, or `undefined` if the string is invalid.
+
+## Example
+
+Pass a Node.js request object to the module export. If parsing fails
+`undefined` is returned, otherwise an object with `.name` and `.pass`.
+
+<!-- eslint-disable no-unused-vars, no-undef -->
+
+```js
+var auth = require('basic-auth')
+var user = auth(req)
+// => { name: 'something', pass: 'whatever' }
+```
+
+A header string from any other location can also be parsed with
+`auth.parse`, for example a `Proxy-Authorization` header:
+
+<!-- eslint-disable no-unused-vars, no-undef -->
+
+```js
+var auth = require('basic-auth')
+var user = auth.parse(req.getHeader('Proxy-Authorization'))
+```
+
+### With vanilla node.js http server
+
+```js
+var http = require('http')
+var auth = require('basic-auth')
+var compare = require('tsscmp')
+
+// Create server
+var server = http.createServer(function (req, res) {
+  var credentials = auth(req)
+
+  // Check credentials
+  // The "check" function will typically be against your user store
+  if (!credentials || !check(credentials.name, credentials.pass)) {
+    res.statusCode = 401
+    res.setHeader('WWW-Authenticate', 'Basic realm="example"')
+    res.end('Access denied')
+  } else {
+    res.end('Access granted')
+  }
+})
+
+// Basic function to validate credentials for example
+function check (name, pass) {
+  var valid = true
+
+  // Simple method to prevent short-circut and use timing-safe compare
+  valid = compare(name, 'john') && valid
+  valid = compare(pass, 'secret') && valid
+
+  return valid
+}
+
+// Listen
+server.listen(3000)
+```
+
+# License
+
+[MIT](LICENSE)
+
+[coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/basic-auth/master
+[coveralls-url]: https://coveralls.io/r/jshttp/basic-auth?branch=master
+[downloads-image]: https://badgen.net/npm/dm/basic-auth
+[downloads-url]: https://npmjs.org/package/basic-auth
+[node-version-image]: https://badgen.net/npm/node/basic-auth
+[node-version-url]: https://nodejs.org/en/download
+[npm-image]: https://badgen.net/npm/v/basic-auth
+[npm-url]: https://npmjs.org/package/basic-auth
+[travis-image]: https://badgen.net/travis/jshttp/basic-auth/master
+[travis-url]: https://travis-ci.org/jshttp/basic-auth

+/*!
+ * basic-auth
+ * Copyright(c) 2013 TJ Holowaychuk
+ * Copyright(c) 2014 Jonathan Ong
+ * Copyright(c) 2015-2016 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var Buffer = require('safe-buffer').Buffer
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = auth
+module.exports.parse = parse
+
+/**
+ * RegExp for basic auth credentials
+ *
+ * credentials = auth-scheme 1*SP token68
+ * auth-scheme = "Basic" ; case insensitive
+ * token68     = 1*( ALPHA / DIGIT / "-" / "." / "_" / "~" / "+" / "/" ) *"="
+ * @private
+ */
+
+var CREDENTIALS_REGEXP = /^ *(?:[Bb][Aa][Ss][Ii][Cc]) +([A-Za-z0-9._~+/-]+=*) *$/
+
+/**
+ * RegExp for basic auth user/pass
+ *
+ * user-pass   = userid ":" password
+ * userid      = *<TEXT excluding ":">
+ * password    = *TEXT
+ * @private
+ */
+
+var USER_PASS_REGEXP = /^([^:]*):(.*)$/
+
+/**
+ * Parse the Authorization header field of a request.
+ *
+ * @param {object} req
+ * @return {object} with .name and .pass
+ * @public
+ */
+
+function auth (req) {
+  if (!req) {
+    throw new TypeError('argument req is required')
+  }
+
+  if (typeof req !== 'object') {
+    throw new TypeError('argument req is required to be an object')
+  }
+
+  // get header
+  var header = getAuthorization(req)
+
+  // parse header
+  return parse(header)
+}
+
+/**
+ * Decode base64 string.
+ * @private
+ */
+
+function decodeBase64 (str) {
+  return Buffer.from(str, 'base64').toString()
+}
+
+/**
+ * Get the Authorization header from request object.
+ * @private
+ */
+
+function getAuthorization (req) {
+  if (!req.headers || typeof req.headers !== 'object') {
+    throw new TypeError('argument req is required to have headers property')
+  }
+
+  return req.headers.authorization
+}
+
+/**
+ * Parse basic auth to object.
+ *
+ * @param {string} string
+ * @return {object}
+ * @public
+ */
+
+function parse (string) {
+  if (typeof string !== 'string') {
+    return undefined
+  }
+
+  // parse header
+  var match = CREDENTIALS_REGEXP.exec(string)
+
+  if (!match) {
+    return undefined
+  }
+
+  // decode user pass
+  var userPass = USER_PASS_REGEXP.exec(decodeBase64(match[1]))
+
+  if (!userPass) {
+    return undefined
+  }
+
+  // return credentials object
+  return new Credentials(userPass[1], userPass[2])
+}
+
+/**
+ * Object to represent user credentials.
+ * @private
+ */
+
+function Credentials (name, pass) {
+  this.name = name
+  this.pass = pass
+}

+{
+  "name": "basic-auth",
+  "description": "node.js basic auth parser",
+  "version": "2.0.1",
+  "license": "MIT",
+  "keywords": [
+    "basic",
+    "auth",
+    "authorization",
+    "basicauth"
+  ],
+  "repository": "jshttp/basic-auth",
+  "dependencies": {
+    "safe-buffer": "5.1.2"
+  },
+  "devDependencies": {
+    "eslint": "5.6.0",
+    "eslint-config-standard": "12.0.0",
+    "eslint-plugin-import": "2.14.0",
+    "eslint-plugin-markdown": "1.0.0-beta.6",
+    "eslint-plugin-node": "7.0.1",
+    "eslint-plugin-promise": "4.0.1",
+    "eslint-plugin-standard": "4.0.0",
+    "istanbul": "0.4.5",
+    "mocha": "5.2.0"
+  },
+  "files": [
+    "HISTORY.md",
+    "LICENSE",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.8"
+  },
+  "scripts": {
+    "lint": "eslint --plugin markdown --ext js,md .",
+    "test": "mocha --check-leaks --reporter spec --bail",
+    "test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- --reporter dot --check-leaks test/",
+    "test-travis": "istanbul cover node_modules/mocha/bin/_mocha --report lcovonly -- --reporter spec --check-leaks test/"
+  }
+}

+(The MIT License)
+
+Copyright (c) 2014 Jonathan Ong <me@jongleberry.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.

+/*!
+ * body-parser
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var deprecate = require('depd')('body-parser')
+
+/**
+ * Cache of loaded parsers.
+ * @private
+ */
+
+var parsers = Object.create(null)
+
+/**
+ * @typedef Parsers
+ * @type {function}
+ * @property {function} json
+ * @property {function} raw
+ * @property {function} text
+ * @property {function} urlencoded
+ */
+
+/**
+ * Module exports.
+ * @type {Parsers}
+ */
+
+exports = module.exports = deprecate.function(bodyParser,
+  'bodyParser: use individual json/urlencoded middlewares')
+
+/**
+ * JSON parser.
+ * @public
+ */
+
+Object.defineProperty(exports, 'json', {
+  configurable: true,
+  enumerable: true,
+  get: createParserGetter('json')
+})
+
+/**
+ * Raw parser.
+ * @public
+ */
+
+Object.defineProperty(exports, 'raw', {
+  configurable: true,
+  enumerable: true,
+  get: createParserGetter('raw')
+})
+
+/**
+ * Text parser.
+ * @public
+ */
+
+Object.defineProperty(exports, 'text', {
+  configurable: true,
+  enumerable: true,
+  get: createParserGetter('text')
+})
+
+/**
+ * URL-encoded parser.
+ * @public
+ */
+
+Object.defineProperty(exports, 'urlencoded', {
+  configurable: true,
+  enumerable: true,
+  get: createParserGetter('urlencoded')
+})
+
+/**
+ * Create a middleware to parse json and urlencoded bodies.
+ *
+ * @param {object} [options]
+ * @return {function}
+ * @deprecated
+ * @public
+ */
+
+function bodyParser (options) {
+  var opts = {}
+
+  // exclude type option
+  if (options) {
+    for (var prop in options) {
+      if (prop !== 'type') {
+        opts[prop] = options[prop]
+      }
+    }
+  }
+
+  var _urlencoded = exports.urlencoded(opts)
+  var _json = exports.json(opts)
+
+  return function bodyParser (req, res, next) {
+    _json(req, res, function (err) {
+      if (err) return next(err)
+      _urlencoded(req, res, next)
+    })
+  }
+}
+
+/**
+ * Create a getter for loading a parser.
+ * @private
+ */
+
+function createParserGetter (name) {
+  return function get () {
+    return loadParser(name)
+  }
+}
+
+/**
+ * Load a parser module.
+ * @private
+ */
+
+function loadParser (parserName) {
+  var parser = parsers[parserName]
+
+  if (parser !== undefined) {
+    return parser
+  }
+
+  // this uses a switch for static require analysis
+  switch (parserName) {
+    case 'json':
+      parser = require('./lib/types/json')
+      break
+    case 'raw':
+      parser = require('./lib/types/raw')
+      break
+    case 'text':
+      parser = require('./lib/types/text')
+      break
+    case 'urlencoded':
+      parser = require('./lib/types/urlencoded')
+      break
+  }
+
+  // store to prevent invoking require()
+  return (parsers[parserName] = parser)
+}

+/*!
+ * body-parser
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var createError = require('http-errors')
+var getBody = require('raw-body')
+var iconv = require('iconv-lite')
+var onFinished = require('on-finished')
+var zlib = require('zlib')
+
+/**
+ * Module exports.
+ */
+
+module.exports = read
+
+/**
+ * Read a request into a buffer and parse.
+ *
+ * @param {object} req
+ * @param {object} res
+ * @param {function} next
+ * @param {function} parse
+ * @param {function} debug
+ * @param {object} options
+ * @private
+ */
+
+function read (req, res, next, parse, debug, options) {
+  var length
+  var opts = options
+  var stream
+
+  // flag as parsed
+  req._body = true
+
+  // read options
+  var encoding = opts.encoding !== null
+    ? opts.encoding
+    : null
+  var verify = opts.verify
+
+  try {
+    // get the content stream
+    stream = contentstream(req, debug, opts.inflate)
+    length = stream.length
+    stream.length = undefined
+  } catch (err) {
+    return next(err)
+  }
+
+  // set raw-body options
+  opts.length = length
+  opts.encoding = verify
+    ? null
+    : encoding
+
+  // assert charset is supported
+  if (opts.encoding === null && encoding !== null && !iconv.encodingExists(encoding)) {
+    return next(createError(415, 'unsupported charset "' + encoding.toUpperCase() + '"', {
+      charset: encoding.toLowerCase(),
+      type: 'charset.unsupported'
+    }))
+  }
+
+  // read body
+  debug('read body')
+  getBody(stream, opts, function (error, body) {
+    if (error) {
+      var _error
+
+      if (error.type === 'encoding.unsupported') {
+        // echo back charset
+        _error = createError(415, 'unsupported charset "' + encoding.toUpperCase() + '"', {
+          charset: encoding.toLowerCase(),
+          type: 'charset.unsupported'
+        })
+      } else {
+        // set status code on error
+        _error = createError(400, error)
+      }
+
+      // read off entire request
+      stream.resume()
+      onFinished(req, function onfinished () {
+        next(createError(400, _error))
+      })
+      return
+    }
+
+    // verify
+    if (verify) {
+      try {
+        debug('verify body')
+        verify(req, res, body, encoding)
+      } catch (err) {
+        next(createError(403, err, {
+          body: body,
+          type: err.type || 'entity.verify.failed'
+        }))
+        return
+      }
+    }
+
+    // parse
+    var str = body
+    try {
+      debug('parse body')
+      str = typeof body !== 'string' && encoding !== null
+        ? iconv.decode(body, encoding)
+        : body
+      req.body = parse(str)
+    } catch (err) {
+      next(createError(400, err, {
+        body: str,
+        type: err.type || 'entity.parse.failed'
+      }))
+      return
+    }
+
+    next()
+  })
+}
+
+/**
+ * Get the content stream of the request.
+ *
+ * @param {object} req
+ * @param {function} debug
+ * @param {boolean} [inflate=true]
+ * @return {object}
+ * @api private
+ */
+
+function contentstream (req, debug, inflate) {
+  var encoding = (req.headers['content-encoding'] || 'identity').toLowerCase()
+  var length = req.headers['content-length']
+  var stream
+
+  debug('content-encoding "%s"', encoding)
+
+  if (inflate === false && encoding !== 'identity') {
+    throw createError(415, 'content encoding unsupported', {
+      encoding: encoding,
+      type: 'encoding.unsupported'
+    })
+  }
+
+  switch (encoding) {
+    case 'deflate':
+      stream = zlib.createInflate()
+      debug('inflate body')
+      req.pipe(stream)
+      break
+    case 'gzip':
+      stream = zlib.createGunzip()
+      debug('gunzip body')
+      req.pipe(stream)
+      break
+    case 'identity':
+      stream = req
+      stream.length = length
+      break
+    default:
+      throw createError(415, 'unsupported content encoding "' + encoding + '"', {
+        encoding: encoding,
+        type: 'encoding.unsupported'
+      })
+  }
+
+  return stream
+}

+/*!
+ * body-parser
+ * Copyright(c) 2014 Jonathan Ong
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var bytes = require('bytes')
+var contentType = require('content-type')
+var createError = require('http-errors')
+var debug = require('debug')('body-parser:json')
+var read = require('../read')
+var typeis = require('type-is')
+
+/**
+ * Module exports.
+ */
+
+module.exports = json
+
+/**
+ * RegExp to match the first non-space in a string.
+ *
+ * Allowed whitespace is defined in RFC 7159:
+ *
+ *    ws = *(
+ *            %x20 /              ; Space
+ *            %x09 /              ; Horizontal tab
+ *            %x0A /              ; Line feed or New line
+ *            %x0D )              ; Carriage return
+ */
+
+var FIRST_CHAR_REGEXP = /^[\x20\x09\x0a\x0d]*(.)/ // eslint-disable-line no-control-regex
+
+/**
+ * Create a middleware to parse JSON bodies.
+ *
+ * @param {object} [options]
+ * @return {function}
+ * @public
+ */
+
+function json (options) {
+  var opts = options || {}
+
+  var limit = typeof opts.limit !== 'number'
+    ? bytes.parse(opts.limit || '100kb')
+    : opts.limit
+  var inflate = opts.inflate !== false
+  var reviver = opts.reviver
+  var strict = opts.strict !== false
+  var type = opts.type || 'application/json'
+  var verify = opts.verify || false
+
+  if (verify !== false && typeof verify !== 'function') {
+    throw new TypeError('option verify must be function')
+  }
+
+  // create the appropriate type checking function
+  var shouldParse = typeof type !== 'function'
+    ? typeChecker(type)
+    : type
+
+  function parse (body) {
+    if (body.length === 0) {
+      // special-case empty json body, as it's a common client-side mistake
+      // TODO: maybe make this configurable or part of "strict" option
+      return {}
+    }
+
+    if (strict) {
+      var first = firstchar(body)
+
+      if (first !== '{' && first !== '[') {
+        debug('strict violation')
+        throw createStrictSyntaxError(body, first)
+      }
+    }
+
+    try {
+      debug('parse json')
+      return JSON.parse(body, reviver)
+    } catch (e) {
+      throw normalizeJsonSyntaxError(e, {
+        message: e.message,
+        stack: e.stack
+      })
+    }
+  }
+
+  return function jsonParser (req, res, next) {
+    if (req._body) {
+      debug('body already parsed')
+      next()
+      return
+    }
+
+    req.body = req.body || {}
+
+    // skip requests without bodies
+    if (!typeis.hasBody(req)) {
+      debug('skip empty body')
+      next()
+      return
+    }
+
+    debug('content-type %j', req.headers['content-type'])
+
+    // determine if request should be parsed
+    if (!shouldParse(req)) {
+      debug('skip parsing')
+      next()
+      return
+    }
+
+    // assert charset per RFC 7159 sec 8.1
+    var charset = getCharset(req) || 'utf-8'
+    if (charset.substr(0, 4) !== 'utf-') {
+      debug('invalid charset')
+      next(createError(415, 'unsupported charset "' + charset.toUpperCase() + '"', {
+        charset: charset,
+        type: 'charset.unsupported'
+      }))
+      return
+    }
+
+    // read
+    read(req, res, next, parse, debug, {
+      encoding: charset,
+      inflate: inflate,
+      limit: limit,
+      verify: verify
+    })
+  }
+}
+
+/**
+ * Create strict violation syntax error matching native error.
+ *
+ * @param {string} str
+ * @param {string} char
+ * @return {Error}
+ * @private
+ */
+
+function createStrictSyntaxError (str, char) {
+  var index = str.indexOf(char)
+  var partial = str.substring(0, index) + '#'
+
+  try {
+    JSON.parse(partial); /* istanbul ignore next */ throw new SyntaxError('strict violation')
+  } catch (e) {
+    return normalizeJsonSyntaxError(e, {
+      message: e.message.replace('#', char),
+      stack: e.stack
+    })
+  }
+}
+
+/**
+ * Get the first non-whitespace character in a string.
+ *
+ * @param {string} str
+ * @return {function}
+ * @private
+ */
+
+function firstchar (str) {
+  return FIRST_CHAR_REGEXP.exec(str)[1]
+}
+
+/**
+ * Get the charset of a request.
+ *
+ * @param {object} req
+ * @api private
+ */
+
+function getCharset (req) {
+  try {
+    return (contentType.parse(req).parameters.charset || '').toLowerCase()
+  } catch (e) {
+    return undefined
+  }
+}
+
+/**
+ * Normalize a SyntaxError for JSON.parse.
+ *
+ * @param {SyntaxError} error
+ * @param {object} obj
+ * @return {SyntaxError}
+ */
+
+function normalizeJsonSyntaxError (error, obj) {
+  var keys = Object.getOwnPropertyNames(error)
+
+  for (var i = 0; i < keys.length; i++) {
+    var key = keys[i]
+    if (key !== 'stack' && key !== 'message') {
+      delete error[key]
+    }
+  }
+
+  // replace stack before message for Node.js 0.10 and below
+  error.stack = obj.stack.replace(error.message, obj.message)
+  error.message = obj.message
+
+  return error
+}
+
+/**
+ * Get the simple type checker.
+ *
+ * @param {string} type
+ * @return {function}
+ */
+
+function typeChecker (type) {
+  return function checkType (req) {
+    return Boolean(typeis(req, type))
+  }
+}

+/*!
+ * body-parser
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ */
+
+var bytes = require('bytes')
+var debug = require('debug')('body-parser:raw')
+var read = require('../read')
+var typeis = require('type-is')
+
+/**
+ * Module exports.
+ */
+
+module.exports = raw
+
+/**
+ * Create a middleware to parse raw bodies.
+ *
+ * @param {object} [options]
+ * @return {function}
+ * @api public
+ */
+
+function raw (options) {
+  var opts = options || {}
+
+  var inflate = opts.inflate !== false
+  var limit = typeof opts.limit !== 'number'
+    ? bytes.parse(opts.limit || '100kb')
+    : opts.limit
+  var type = opts.type || 'application/octet-stream'
+  var verify = opts.verify || false
+
+  if (verify !== false && typeof verify !== 'function') {
+    throw new TypeError('option verify must be function')
+  }
+
+  // create the appropriate type checking function
+  var shouldParse = typeof type !== 'function'
+    ? typeChecker(type)
+    : type
+
+  function parse (buf) {
+    return buf
+  }
+
+  return function rawParser (req, res, next) {
+    if (req._body) {
+      debug('body already parsed')
+      next()
+      return
+    }
+
+    req.body = req.body || {}
+
+    // skip requests without bodies
+    if (!typeis.hasBody(req)) {
+      debug('skip empty body')
+      next()
+      return
+    }
+
+    debug('content-type %j', req.headers['content-type'])
+
+    // determine if request should be parsed
+    if (!shouldParse(req)) {
+      debug('skip parsing')
+      next()
+      return
+    }
+
+    // read
+    read(req, res, next, parse, debug, {
+      encoding: null,
+      inflate: inflate,
+      limit: limit,
+      verify: verify
+    })
+  }
+}
+
+/**
+ * Get the simple type checker.
+ *
+ * @param {string} type
+ * @return {function}
+ */
+
+function typeChecker (type) {
+  return function checkType (req) {
+    return Boolean(typeis(req, type))
+  }
+}

+/*!
+ * body-parser
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ */
+
+var bytes = require('bytes')
+var contentType = require('content-type')
+var debug = require('debug')('body-parser:text')
+var read = require('../read')
+var typeis = require('type-is')
+
+/**
+ * Module exports.
+ */
+
+module.exports = text
+
+/**
+ * Create a middleware to parse text bodies.
+ *
+ * @param {object} [options]
+ * @return {function}
+ * @api public
+ */
+
+function text (options) {
+  var opts = options || {}
+
+  var defaultCharset = opts.defaultCharset || 'utf-8'
+  var inflate = opts.inflate !== false
+  var limit = typeof opts.limit !== 'number'
+    ? bytes.parse(opts.limit || '100kb')
+    : opts.limit
+  var type = opts.type || 'text/plain'
+  var verify = opts.verify || false
+
+  if (verify !== false && typeof verify !== 'function') {
+    throw new TypeError('option verify must be function')
+  }
+
+  // create the appropriate type checking function
+  var shouldParse = typeof type !== 'function'
+    ? typeChecker(type)
+    : type
+
+  function parse (buf) {
+    return buf
+  }
+
+  return function textParser (req, res, next) {
+    if (req._body) {
+      debug('body already parsed')
+      next()
+      return
+    }
+
+    req.body = req.body || {}
+
+    // skip requests without bodies
+    if (!typeis.hasBody(req)) {
+      debug('skip empty body')
+      next()
+      return
+    }
+
+    debug('content-type %j', req.headers['content-type'])
+
+    // determine if request should be parsed
+    if (!shouldParse(req)) {
+      debug('skip parsing')
+      next()
+      return
+    }
+
+    // get charset
+    var charset = getCharset(req) || defaultCharset
+
+    // read
+    read(req, res, next, parse, debug, {
+      encoding: charset,
+      inflate: inflate,
+      limit: limit,
+      verify: verify
+    })
+  }
+}
+
+/**
+ * Get the charset of a request.
+ *
+ * @param {object} req
+ * @api private
+ */
+
+function getCharset (req) {
+  try {
+    return (contentType.parse(req).parameters.charset || '').toLowerCase()
+  } catch (e) {
+    return undefined
+  }
+}
+
+/**
+ * Get the simple type checker.
+ *
+ * @param {string} type
+ * @return {function}
+ */
+
+function typeChecker (type) {
+  return function checkType (req) {
+    return Boolean(typeis(req, type))
+  }
+}

+/*!
+ * body-parser
+ * Copyright(c) 2014 Jonathan Ong
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var bytes = require('bytes')
+var contentType = require('content-type')
+var createError = require('http-errors')
+var debug = require('debug')('body-parser:urlencoded')
+var deprecate = require('depd')('body-parser')
+var read = require('../read')
+var typeis = require('type-is')
+
+/**
+ * Module exports.
+ */
+
+module.exports = urlencoded
+
+/**
+ * Cache of parser modules.
+ */
+
+var parsers = Object.create(null)
+
+/**
+ * Create a middleware to parse urlencoded bodies.
+ *
+ * @param {object} [options]
+ * @return {function}
+ * @public
+ */
+
+function urlencoded (options) {
+  var opts = options || {}
+
+  // notice because option default will flip in next major
+  if (opts.extended === undefined) {
+    deprecate('undefined extended: provide extended option')
+  }
+
+  var extended = opts.extended !== false
+  var inflate = opts.inflate !== false
+  var limit = typeof opts.limit !== 'number'
+    ? bytes.parse(opts.limit || '100kb')
+    : opts.limit
+  var type = opts.type || 'application/x-www-form-urlencoded'
+  var verify = opts.verify || false
+
+  if (verify !== false && typeof verify !== 'function') {
+    throw new TypeError('option verify must be function')
+  }
+
+  // create the appropriate query parser
+  var queryparse = extended
+    ? extendedparser(opts)
+    : simpleparser(opts)
+
+  // create the appropriate type checking function
+  var shouldParse = typeof type !== 'function'
+    ? typeChecker(type)
+    : type
+
+  function parse (body) {
+    return body.length
+      ? queryparse(body)
+      : {}
+  }
+
+  return function urlencodedParser (req, res, next) {
+    if (req._body) {
+      debug('body already parsed')
+      next()
+      return
+    }
+
+    req.body = req.body || {}
+
+    // skip requests without bodies
+    if (!typeis.hasBody(req)) {
+      debug('skip empty body')
+      next()
+      return
+    }
+
+    debug('content-type %j', req.headers['content-type'])
+
+    // determine if request should be parsed
+    if (!shouldParse(req)) {
+      debug('skip parsing')
+      next()
+      return
+    }
+
+    // assert charset
+    var charset = getCharset(req) || 'utf-8'
+    if (charset !== 'utf-8') {
+      debug('invalid charset')
+      next(createError(415, 'unsupported charset "' + charset.toUpperCase() + '"', {
+        charset: charset,
+        type: 'charset.unsupported'
+      }))
+      return
+    }
+
+    // read
+    read(req, res, next, parse, debug, {
+      debug: debug,
+      encoding: charset,
+      inflate: inflate,
+      limit: limit,
+      verify: verify
+    })
+  }
+}
+
+/**
+ * Get the extended query parser.
+ *
+ * @param {object} options
+ */
+
+function extendedparser (options) {
+  var parameterLimit = options.parameterLimit !== undefined
+    ? options.parameterLimit
+    : 1000
+  var parse = parser('qs')
+
+  if (isNaN(parameterLimit) || parameterLimit < 1) {
+    throw new TypeError('option parameterLimit must be a positive number')
+  }
+
+  if (isFinite(parameterLimit)) {
+    parameterLimit = parameterLimit | 0
+  }
+
+  return function queryparse (body) {
+    var paramCount = parameterCount(body, parameterLimit)
+
+    if (paramCount === undefined) {
+      debug('too many parameters')
+      throw createError(413, 'too many parameters', {
+        type: 'parameters.too.many'
+      })
+    }
+
+    var arrayLimit = Math.max(100, paramCount)
+
+    debug('parse extended urlencoding')
+    return parse(body, {
+      allowPrototypes: true,
+      arrayLimit: arrayLimit,
+      depth: Infinity,
+      parameterLimit: parameterLimit
+    })
+  }
+}
+
+/**
+ * Get the charset of a request.
+ *
+ * @param {object} req
+ * @api private
+ */
+
+function getCharset (req) {
+  try {
+    return (contentType.parse(req).parameters.charset || '').toLowerCase()
+  } catch (e) {
+    return undefined
+  }
+}
+
+/**
+ * Count the number of parameters, stopping once limit reached
+ *
+ * @param {string} body
+ * @param {number} limit
+ * @api private
+ */
+
+function parameterCount (body, limit) {
+  var count = 0
+  var index = 0
+
+  while ((index = body.indexOf('&', index)) !== -1) {
+    count++
+    index++
+
+    if (count === limit) {
+      return undefined
+    }
+  }
+
+  return count
+}
+
+/**
+ * Get parser for module name dynamically.
+ *
+ * @param {string} name
+ * @return {function}
+ * @api private
+ */
+
+function parser (name) {
+  var mod = parsers[name]
+
+  if (mod !== undefined) {
+    return mod.parse
+  }
+
+  // this uses a switch for static require analysis
+  switch (name) {
+    case 'qs':
+      mod = require('qs')
+      break
+    case 'querystring':
+      mod = require('querystring')
+      break
+  }
+
+  // store to prevent invoking require()
+  parsers[name] = mod
+
+  return mod.parse
+}
+
+/**
+ * Get the simple query parser.
+ *
+ * @param {object} options
+ */
+
+function simpleparser (options) {
+  var parameterLimit = options.parameterLimit !== undefined
+    ? options.parameterLimit
+    : 1000
+  var parse = parser('querystring')
+
+  if (isNaN(parameterLimit) || parameterLimit < 1) {
+    throw new TypeError('option parameterLimit must be a positive number')
+  }
+
+  if (isFinite(parameterLimit)) {
+    parameterLimit = parameterLimit | 0
+  }
+
+  return function queryparse (body) {
+    var paramCount = parameterCount(body, parameterLimit)
+
+    if (paramCount === undefined) {
+      debug('too many parameters')
+      throw createError(413, 'too many parameters', {
+        type: 'parameters.too.many'
+      })
+    }
+
+    debug('parse urlencoding')
+    return parse(body, undefined, undefined, {maxKeys: parameterLimit})
+  }
+}
+
+/**
+ * Get the simple type checker.
+ *
+ * @param {string} type
+ * @return {function}
+ */
+
+function typeChecker (type) {
+  return function checkType (req) {
+    return Boolean(typeis(req, type))
+  }
+}

+{
+  "name": "body-parser",
+  "description": "Node.js body parsing middleware",
+  "version": "1.18.3",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>",
+    "Jonathan Ong <me@jongleberry.com> (http://jongleberry.com)"
+  ],
+  "license": "MIT",
+  "repository": "expressjs/body-parser",
+  "dependencies": {
+    "bytes": "3.0.0",
+    "content-type": "~1.0.4",
+    "debug": "2.6.9",
+    "depd": "~1.1.2",
+    "http-errors": "~1.6.3",
+    "iconv-lite": "0.4.23",
+    "on-finished": "~2.3.0",
+    "qs": "6.5.2",
+    "raw-body": "2.3.3",
+    "type-is": "~1.6.16"
+  },
+  "devDependencies": {
+    "eslint": "4.19.1",
+    "eslint-config-standard": "11.0.0",
+    "eslint-plugin-import": "2.11.0",
+    "eslint-plugin-markdown": "1.0.0-beta.6",
+    "eslint-plugin-node": "6.0.1",
+    "eslint-plugin-promise": "3.7.0",
+    "eslint-plugin-standard": "3.1.0",
+    "istanbul": "0.4.5",
+    "methods": "1.1.2",
+    "mocha": "2.5.3",
+    "safe-buffer": "5.1.2",
+    "supertest": "1.1.0"
+  },
+  "files": [
+    "lib/",
+    "LICENSE",
+    "HISTORY.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.8"
+  },
+  "scripts": {
+    "lint": "eslint --plugin markdown --ext js,md .",
+    "test": "mocha --require test/support/env --reporter spec --check-leaks --bail test/",
+    "test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- --require test/support/env --reporter dot --check-leaks test/",
+    "test-travis": "istanbul cover node_modules/mocha/bin/_mocha --report lcovonly -- --require test/support/env --reporter spec --check-leaks test/"
+  }
+}

+3.0.0 / 2017-08-31
+==================
+
+  * Change "kB" to "KB" in format output
+  * Remove support for Node.js 0.6
+  * Remove support for ComponentJS
+
+2.5.0 / 2017-03-24
+==================
+
+  * Add option "unit"
+
+2.4.0 / 2016-06-01
+==================
+
+  * Add option "unitSeparator"
+
+2.3.0 / 2016-02-15
+==================
+
+  * Drop partial bytes on all parsed units
+  * Fix non-finite numbers to `.format` to return `null`
+  * Fix parsing byte string that looks like hex
+  * perf: hoist regular expressions
+
+2.2.0 / 2015-11-13
+==================
+
+  * add option "decimalPlaces"
+  * add option "fixedDecimals"
+
+2.1.0 / 2015-05-21
+==================
+
+  * add `.format` export
+  * add `.parse` export
+
+2.0.2 / 2015-05-20
+==================
+
+  * remove map recreation
+  * remove unnecessary object construction
+
+2.0.1 / 2015-05-07
+==================
+
+  * fix browserify require
+  * remove node.extend dependency
+
+2.0.0 / 2015-04-12
+==================
+
+  * add option "case"
+  * add option "thousandsSeparator"
+  * return "null" on invalid parse input
+  * support proper round-trip: bytes(bytes(num)) === num
+  * units no longer case sensitive when parsing
+
+1.0.0 / 2014-05-05
+==================
+
+ * add negative support. fixes #6
+
+0.3.0 / 2014-03-19
+==================
+
+ * added terabyte support
+
+0.2.1 / 2013-04-01
+==================
+
+  * add .component
+
+0.2.0 / 2012-10-28
+==================
+
+  * bytes(200).should.eql('200b')
+
+0.1.0 / 2012-07-04
+==================
+
+  * add bytes to string conversion [yields]

+(The MIT License)
+
+Copyright (c) 2012-2014 TJ Holowaychuk <tj@vision-media.ca>
+Copyright (c) 2015 Jed Watson <jed.watson@me.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.

+# Bytes utility
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Utility to parse a string bytes (ex: `1TB`) to bytes (`1099511627776`) and vice-versa.
+
+## Installation
+
+This is a [Node.js](https://nodejs.org/en/) module available through the
+[npm registry](https://www.npmjs.com/). Installation is done using the
+[`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
+
+```bash
+$ npm install bytes
+```
+
+## Usage
+
+```js
+var bytes = require('bytes');
+```
+
+#### bytes.format(number value, [options]): string｜null
+
+Format the given value in bytes into a string. If the value is negative, it is kept as such. If it is a float, it is
+ rounded.
+
+**Arguments**
+
+| Name    | Type     | Description        |
+|---------|----------|--------------------|
+| value   | `number` | Value in bytes     |
+| options | `Object` | Conversion options |
+
+**Options**
+
+| Property          | Type   | Description                                                                             |
+|-------------------|--------|-----------------------------------------------------------------------------------------|
+| decimalPlaces | `number`｜`null` | Maximum number of decimal places to include in output. Default value to `2`. |
+| fixedDecimals | `boolean`｜`null` | Whether to always display the maximum number of decimal places. Default value to `false` |
+| thousandsSeparator | `string`｜`null` | Example of values: `' '`, `','` and `.`... Default value to `''`. |
+| unit | `string`｜`null` | The unit in which the result will be returned (B/KB/MB/GB/TB). Default value to `''` (which means auto detect). |
+| unitSeparator | `string`｜`null` | Separator to use between number and unit. Default value to `''`. |
+
+**Returns**
+
+| Name    | Type             | Description                                     |
+|---------|------------------|-------------------------------------------------|
+| results | `string`｜`null` | Return null upon error. String value otherwise. |
+
+**Example**
+
+```js
+bytes(1024);
+// output: '1KB'
+
+bytes(1000);
+// output: '1000B'
+
+bytes(1000, {thousandsSeparator: ' '});
+// output: '1 000B'
+
+bytes(1024 * 1.7, {decimalPlaces: 0});
+// output: '2KB'
+
+bytes(1024, {unitSeparator: ' '});
+// output: '1 KB'
+
+```
+
+#### bytes.parse(string｜number value): number｜null
+
+Parse the string value into an integer in bytes. If no unit is given, or `value`
+is a number, it is assumed the value is in bytes.
+
+Supported units and abbreviations are as follows and are case-insensitive:
+
+  * `b` for bytes
+  * `kb` for kilobytes
+  * `mb` for megabytes
+  * `gb` for gigabytes
+  * `tb` for terabytes
+
+The units are in powers of two, not ten. This means 1kb = 1024b according to this parser.
+
+**Arguments**
+
+| Name          | Type   | Description        |
+|---------------|--------|--------------------|
+| value   | `string`｜`number` | String to parse, or number in bytes.   |
+
+**Returns**
+
+| Name    | Type        | Description             |
+|---------|-------------|-------------------------|
+| results | `number`｜`null` | Return null upon error. Value in bytes otherwise. |
+
+**Example**
+
+```js
+bytes('1KB');
+// output: 1024
+
+bytes('1024');
+// output: 1024
+
+bytes(1024);
+// output: 1024
+```
+
+## License 
+
+[MIT](LICENSE)
+
+[downloads-image]: https://img.shields.io/npm/dm/bytes.svg
+[downloads-url]: https://npmjs.org/package/bytes
+[npm-image]: https://img.shields.io/npm/v/bytes.svg
+[npm-url]: https://npmjs.org/package/bytes
+[travis-image]: https://img.shields.io/travis/visionmedia/bytes.js/master.svg
+[travis-url]: https://travis-ci.org/visionmedia/bytes.js
+[coveralls-image]: https://img.shields.io/coveralls/visionmedia/bytes.js/master.svg
+[coveralls-url]: https://coveralls.io/r/visionmedia/bytes.js?branch=master

+/*!
+ * bytes
+ * Copyright(c) 2012-2014 TJ Holowaychuk
+ * Copyright(c) 2015 Jed Watson
+ * MIT Licensed
+ */
+
+'use strict';
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = bytes;
+module.exports.format = format;
+module.exports.parse = parse;
+
+/**
+ * Module variables.
+ * @private
+ */
+
+var formatThousandsRegExp = /\B(?=(\d{3})+(?!\d))/g;
+
+var formatDecimalsRegExp = /(?:\.0*|(\.[^0]+)0+)$/;
+
+var map = {
+  b:  1,
+  kb: 1 << 10,
+  mb: 1 << 20,
+  gb: 1 << 30,
+  tb: ((1 << 30) * 1024)
+};
+
+var parseRegExp = /^((-|\+)?(\d+(?:\.\d+)?)) *(kb|mb|gb|tb)$/i;
+
+/**
+ * Convert the given value in bytes into a string or parse to string to an integer in bytes.
+ *
+ * @param {string|number} value
+ * @param {{
+ *  case: [string],
+ *  decimalPlaces: [number]
+ *  fixedDecimals: [boolean]
+ *  thousandsSeparator: [string]
+ *  unitSeparator: [string]
+ *  }} [options] bytes options.
+ *
+ * @returns {string|number|null}
+ */
+
+function bytes(value, options) {
+  if (typeof value === 'string') {
+    return parse(value);
+  }
+
+  if (typeof value === 'number') {
+    return format(value, options);
+  }
+
+  return null;
+}
+
+/**
+ * Format the given value in bytes into a string.
+ *
+ * If the value is negative, it is kept as such. If it is a float,
+ * it is rounded.
+ *
+ * @param {number} value
+ * @param {object} [options]
+ * @param {number} [options.decimalPlaces=2]
+ * @param {number} [options.fixedDecimals=false]
+ * @param {string} [options.thousandsSeparator=]
+ * @param {string} [options.unit=]
+ * @param {string} [options.unitSeparator=]
+ *
+ * @returns {string|null}
+ * @public
+ */
+
+function format(value, options) {
+  if (!Number.isFinite(value)) {
+    return null;
+  }
+
+  var mag = Math.abs(value);
+  var thousandsSeparator = (options && options.thousandsSeparator) || '';
+  var unitSeparator = (options && options.unitSeparator) || '';
+  var decimalPlaces = (options && options.decimalPlaces !== undefined) ? options.decimalPlaces : 2;
+  var fixedDecimals = Boolean(options && options.fixedDecimals);
+  var unit = (options && options.unit) || '';
+
+  if (!unit || !map[unit.toLowerCase()]) {
+    if (mag >= map.tb) {
+      unit = 'TB';
+    } else if (mag >= map.gb) {
+      unit = 'GB';
+    } else if (mag >= map.mb) {
+      unit = 'MB';
+    } else if (mag >= map.kb) {
+      unit = 'KB';
+    } else {
+      unit = 'B';
+    }
+  }
+
+  var val = value / map[unit.toLowerCase()];
+  var str = val.toFixed(decimalPlaces);
+
+  if (!fixedDecimals) {
+    str = str.replace(formatDecimalsRegExp, '$1');
+  }
+
+  if (thousandsSeparator) {
+    str = str.replace(formatThousandsRegExp, thousandsSeparator);
+  }
+
+  return str + unitSeparator + unit;
+}
+
+/**
+ * Parse the string value into an integer in bytes.
+ *
+ * If no unit is given, it is assumed the value is in bytes.
+ *
+ * @param {number|string} val
+ *
+ * @returns {number|null}
+ * @public
+ */
+
+function parse(val) {
+  if (typeof val === 'number' && !isNaN(val)) {
+    return val;
+  }
+
+  if (typeof val !== 'string') {
+    return null;
+  }
+
+  // Test if the string passed is valid
+  var results = parseRegExp.exec(val);
+  var floatValue;
+  var unit = 'b';
+
+  if (!results) {
+    // Nothing could be extracted from the given string
+    floatValue = parseInt(val, 10);
+    unit = 'b'
+  } else {
+    // Retrieve the value and the unit
+    floatValue = parseFloat(results[1]);
+    unit = results[4].toLowerCase();
+  }
+
+  return Math.floor(map[unit] * floatValue);
+}

+{
+  "name": "bytes",
+  "description": "Utility to parse a string bytes to bytes and vice-versa",
+  "version": "3.0.0",
+  "author": "TJ Holowaychuk <tj@vision-media.ca> (http://tjholowaychuk.com)",
+  "contributors": [
+    "Jed Watson <jed.watson@me.com>",
+    "Théo FIDRY <theo.fidry@gmail.com>"
+  ],
+  "license": "MIT",
+  "keywords": [
+    "byte",
+    "bytes",
+    "utility",
+    "parse",
+    "parser",
+    "convert",
+    "converter"
+  ],
+  "repository": "visionmedia/bytes.js",
+  "devDependencies": {
+    "mocha": "2.5.3",
+    "nyc": "10.3.2"
+  },
+  "files": [
+    "History.md",
+    "LICENSE",
+    "Readme.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.8"
+  },
+  "scripts": {
+    "test": "mocha --check-leaks --reporter spec",
+    "test-ci": "nyc --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test"
+  }
+}

+0.5.2 / 2016-12-08
+==================
+
+  * Fix `parse` to accept any linear whitespace character
+
+0.5.1 / 2016-01-17
+==================
+
+  * perf: enable strict mode
+
+0.5.0 / 2014-10-11
+==================
+
+  * Add `parse` function
+
+0.4.0 / 2014-09-21
+==================
+
+  * Expand non-Unicode `filename` to the full ISO-8859-1 charset
+
+0.3.0 / 2014-09-20
+==================
+
+  * Add `fallback` option
+  * Add `type` option
+
+0.2.0 / 2014-09-19
+==================
+
+  * Reduce ambiguity of file names with hex escape in buggy browsers
+
+0.1.2 / 2014-09-19
+==================
+
+  * Fix periodic invalid Unicode filename header
+
+0.1.1 / 2014-09-19
+==================
+
+  * Fix invalid characters appearing in `filename*` parameter
+
+0.1.0 / 2014-09-18
+==================
+
+  * Make the `filename` argument optional
+
+0.0.0 / 2014-09-18
+==================
+
+  * Initial release

+(The MIT License)
+
+Copyright (c) 2014 Douglas Christopher Wilson
+
+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.

+# content-disposition
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Create and parse HTTP `Content-Disposition` header
+
+## Installation
+
+```sh
+$ npm install content-disposition
+```
+
+## API
+
+```js
+var contentDisposition = require('content-disposition')
+```
+
+### contentDisposition(filename, options)
+
+Create an attachment `Content-Disposition` header value using the given file name,
+if supplied. The `filename` is optional and if no file name is desired, but you
+want to specify `options`, set `filename` to `undefined`.
+
+```js
+res.setHeader('Content-Disposition', contentDisposition('∫ maths.pdf'))
+```
+
+**note** HTTP headers are of the ISO-8859-1 character set. If you are writing this
+header through a means different from `setHeader` in Node.js, you'll want to specify
+the `'binary'` encoding in Node.js.
+
+#### Options
+
+`contentDisposition` accepts these properties in the options object.
+
+##### fallback
+
+If the `filename` option is outside ISO-8859-1, then the file name is actually
+stored in a supplemental field for clients that support Unicode file names and
+a ISO-8859-1 version of the file name is automatically generated.
+
+This specifies the ISO-8859-1 file name to override the automatic generation or
+disables the generation all together, defaults to `true`.
+
+  - A string will specify the ISO-8859-1 file name to use in place of automatic
+    generation.
+  - `false` will disable including a ISO-8859-1 file name and only include the
+    Unicode version (unless the file name is already ISO-8859-1).
+  - `true` will enable automatic generation if the file name is outside ISO-8859-1.
+
+If the `filename` option is ISO-8859-1 and this option is specified and has a
+different value, then the `filename` option is encoded in the extended field
+and this set as the fallback field, even though they are both ISO-8859-1.
+
+##### type
+
+Specifies the disposition type, defaults to `"attachment"`. This can also be
+`"inline"`, or any other value (all values except inline are treated like
+`attachment`, but can convey additional information if both parties agree to
+it). The type is normalized to lower-case.
+
+### contentDisposition.parse(string)
+
+```js
+var disposition = contentDisposition.parse('attachment; filename="EURO rates.txt"; filename*=UTF-8\'\'%e2%82%ac%20rates.txt');
+```
+
+Parse a `Content-Disposition` header string. This automatically handles extended
+("Unicode") parameters by decoding them and providing them under the standard
+parameter name. This will return an object with the following properties (examples
+are shown for the string `'attachment; filename="EURO rates.txt"; filename*=UTF-8\'\'%e2%82%ac%20rates.txt'`):
+
+ - `type`: The disposition type (always lower case). Example: `'attachment'`
+
+ - `parameters`: An object of the parameters in the disposition (name of parameter
+   always lower case and extended versions replace non-extended versions). Example:
+   `{filename: "€ rates.txt"}`
+
+## Examples
+
+### Send a file for download
+
+```js
+var contentDisposition = require('content-disposition')
+var destroy = require('destroy')
+var http = require('http')
+var onFinished = require('on-finished')
+
+var filePath = '/path/to/public/plans.pdf'
+
+http.createServer(function onRequest(req, res) {
+  // set headers
+  res.setHeader('Content-Type', 'application/pdf')
+  res.setHeader('Content-Disposition', contentDisposition(filePath))
+
+  // send file
+  var stream = fs.createReadStream(filePath)
+  stream.pipe(res)
+  onFinished(res, function (err) {
+    destroy(stream)
+  })
+})
+```
+
+## Testing
+
+```sh
+$ npm test
+```
+
+## References
+
+- [RFC 2616: Hypertext Transfer Protocol -- HTTP/1.1][rfc-2616]
+- [RFC 5987: Character Set and Language Encoding for Hypertext Transfer Protocol (HTTP) Header Field Parameters][rfc-5987]
+- [RFC 6266: Use of the Content-Disposition Header Field in the Hypertext Transfer Protocol (HTTP)][rfc-6266]
+- [Test Cases for HTTP Content-Disposition header field (RFC 6266) and the Encodings defined in RFCs 2047, 2231 and 5987][tc-2231]
+
+[rfc-2616]: https://tools.ietf.org/html/rfc2616
+[rfc-5987]: https://tools.ietf.org/html/rfc5987
+[rfc-6266]: https://tools.ietf.org/html/rfc6266
+[tc-2231]: http://greenbytes.de/tech/tc2231/
+
+## License
+
+[MIT](LICENSE)
+
+[npm-image]: https://img.shields.io/npm/v/content-disposition.svg?style=flat
+[npm-url]: https://npmjs.org/package/content-disposition
+[node-version-image]: https://img.shields.io/node/v/content-disposition.svg?style=flat
+[node-version-url]: https://nodejs.org/en/download
+[travis-image]: https://img.shields.io/travis/jshttp/content-disposition.svg?style=flat
+[travis-url]: https://travis-ci.org/jshttp/content-disposition
+[coveralls-image]: https://img.shields.io/coveralls/jshttp/content-disposition.svg?style=flat
+[coveralls-url]: https://coveralls.io/r/jshttp/content-disposition?branch=master
+[downloads-image]: https://img.shields.io/npm/dm/content-disposition.svg?style=flat
+[downloads-url]: https://npmjs.org/package/content-disposition

+{
+  "name": "content-disposition",
+  "description": "Create and parse Content-Disposition header",
+  "version": "0.5.2",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>"
+  ],
+  "license": "MIT",
+  "keywords": [
+    "content-disposition",
+    "http",
+    "rfc6266",
+    "res"
+  ],
+  "repository": "jshttp/content-disposition",
+  "devDependencies": {
+    "eslint": "3.11.1",
+    "eslint-config-standard": "6.2.1",
+    "eslint-plugin-promise": "3.3.0",
+    "eslint-plugin-standard": "2.0.1",
+    "istanbul": "0.4.5",
+    "mocha": "1.21.5"
+  },
+  "files": [
+    "LICENSE",
+    "HISTORY.md",
+    "README.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.6"
+  },
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --bail --check-leaks test/",
+    "test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- --reporter dot --check-leaks test/",
+    "test-travis": "istanbul cover node_modules/mocha/bin/_mocha --report lcovonly -- --reporter spec --check-leaks test/"
+  }
+}

+1.0.4 / 2017-09-11
+==================
+
+  * perf: skip parameter parsing when no parameters
+
+1.0.3 / 2017-09-10
+==================
+
+  * perf: remove argument reassignment
+
+1.0.2 / 2016-05-09
+==================
+
+  * perf: enable strict mode
+
+1.0.1 / 2015-02-13
+==================
+
+  * Improve missing `Content-Type` header error message
+
+1.0.0 / 2015-02-01
+==================
+
+  * Initial implementation, derived from `media-typer@0.3.0`

+(The MIT License)
+
+Copyright (c) 2015 Douglas Christopher Wilson
+
+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.

+# content-type
+
+[![NPM Version][npm-image]][npm-url]
+[![NPM Downloads][downloads-image]][downloads-url]
+[![Node.js Version][node-version-image]][node-version-url]
+[![Build Status][travis-image]][travis-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Create and parse HTTP Content-Type header according to RFC 7231
+
+## Installation
+
+```sh
+$ npm install content-type
+```
+
+## API
+
+```js
+var contentType = require('content-type')
+```
+
+### contentType.parse(string)
+
+```js
+var obj = contentType.parse('image/svg+xml; charset=utf-8')
+```
+
+Parse a content type string. This will return an object with the following
+properties (examples are shown for the string `'image/svg+xml; charset=utf-8'`):
+
+ - `type`: The media type (the type and subtype, always lower case).
+   Example: `'image/svg+xml'`
+
+ - `parameters`: An object of the parameters in the media type (name of parameter
+   always lower case). Example: `{charset: 'utf-8'}`
+
+Throws a `TypeError` if the string is missing or invalid.
+
+### contentType.parse(req)
+
+```js
+var obj = contentType.parse(req)
+```
+
+Parse the `content-type` header from the given `req`. Short-cut for
+`contentType.parse(req.headers['content-type'])`.
+
+Throws a `TypeError` if the `Content-Type` header is missing or invalid.
+
+### contentType.parse(res)
+
+```js
+var obj = contentType.parse(res)
+```
+
+Parse the `content-type` header set on the given `res`. Short-cut for
+`contentType.parse(res.getHeader('content-type'))`.
+
+Throws a `TypeError` if the `Content-Type` header is missing or invalid.
+
+### contentType.format(obj)
+
+```js
+var str = contentType.format({type: 'image/svg+xml'})
+```
+
+Format an object into a content type string. This will return a string of the
+content type for the given object with the following properties (examples are
+shown that produce the string `'image/svg+xml; charset=utf-8'`):
+
+ - `type`: The media type (will be lower-cased). Example: `'image/svg+xml'`
+
+ - `parameters`: An object of the parameters in the media type (name of the
+   parameter will be lower-cased). Example: `{charset: 'utf-8'}`
+
+Throws a `TypeError` if the object contains an invalid type or parameter names.
+
+## License
+
+[MIT](LICENSE)
+
+[npm-image]: https://img.shields.io/npm/v/content-type.svg
+[npm-url]: https://npmjs.org/package/content-type
+[node-version-image]: https://img.shields.io/node/v/content-type.svg
+[node-version-url]: http://nodejs.org/download/
+[travis-image]: https://img.shields.io/travis/jshttp/content-type/master.svg
+[travis-url]: https://travis-ci.org/jshttp/content-type
+[coveralls-image]: https://img.shields.io/coveralls/jshttp/content-type/master.svg
+[coveralls-url]: https://coveralls.io/r/jshttp/content-type
+[downloads-image]: https://img.shields.io/npm/dm/content-type.svg
+[downloads-url]: https://npmjs.org/package/content-type

+/*!
+ * content-type
+ * Copyright(c) 2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * RegExp to match *( ";" parameter ) in RFC 7231 sec 3.1.1.1
+ *
+ * parameter     = token "=" ( token / quoted-string )
+ * token         = 1*tchar
+ * tchar         = "!" / "#" / "$" / "%" / "&" / "'" / "*"
+ *               / "+" / "-" / "." / "^" / "_" / "`" / "|" / "~"
+ *               / DIGIT / ALPHA
+ *               ; any VCHAR, except delimiters
+ * quoted-string = DQUOTE *( qdtext / quoted-pair ) DQUOTE
+ * qdtext        = HTAB / SP / %x21 / %x23-5B / %x5D-7E / obs-text
+ * obs-text      = %x80-FF
+ * quoted-pair   = "\" ( HTAB / SP / VCHAR / obs-text )
+ */
+var PARAM_REGEXP = /; *([!#$%&'*+.^_`|~0-9A-Za-z-]+) *= *("(?:[\u000b\u0020\u0021\u0023-\u005b\u005d-\u007e\u0080-\u00ff]|\\[\u000b\u0020-\u00ff])*"|[!#$%&'*+.^_`|~0-9A-Za-z-]+) */g
+var TEXT_REGEXP = /^[\u000b\u0020-\u007e\u0080-\u00ff]+$/
+var TOKEN_REGEXP = /^[!#$%&'*+.^_`|~0-9A-Za-z-]+$/
+
+/**
+ * RegExp to match quoted-pair in RFC 7230 sec 3.2.6
+ *
+ * quoted-pair = "\" ( HTAB / SP / VCHAR / obs-text )
+ * obs-text    = %x80-FF
+ */
+var QESC_REGEXP = /\\([\u000b\u0020-\u00ff])/g
+
+/**
+ * RegExp to match chars that must be quoted-pair in RFC 7230 sec 3.2.6
+ */
+var QUOTE_REGEXP = /([\\"])/g
+
+/**
+ * RegExp to match type in RFC 7231 sec 3.1.1.1
+ *
+ * media-type = type "/" subtype
+ * type       = token
+ * subtype    = token
+ */
+var TYPE_REGEXP = /^[!#$%&'*+.^_`|~0-9A-Za-z-]+\/[!#$%&'*+.^_`|~0-9A-Za-z-]+$/
+
+/**
+ * Module exports.
+ * @public
+ */
+
+exports.format = format
+exports.parse = parse
+
+/**
+ * Format object to media type.
+ *
+ * @param {object} obj
+ * @return {string}
+ * @public
+ */
+
+function format (obj) {
+  if (!obj || typeof obj !== 'object') {
+    throw new TypeError('argument obj is required')
+  }
+
+  var parameters = obj.parameters
+  var type = obj.type
+
+  if (!type || !TYPE_REGEXP.test(type)) {
+    throw new TypeError('invalid type')
+  }
+
+  var string = type
+
+  // append parameters
+  if (parameters && typeof parameters === 'object') {
+    var param
+    var params = Object.keys(parameters).sort()
+
+    for (var i = 0; i < params.length; i++) {
+      param = params[i]
+
+      if (!TOKEN_REGEXP.test(param)) {
+        throw new TypeError('invalid parameter name')
+      }
+
+      string += '; ' + param + '=' + qstring(parameters[param])
+    }
+  }
+
+  return string
+}
+
+/**
+ * Parse media type to object.
+ *
+ * @param {string|object} string
+ * @return {Object}
+ * @public
+ */
+
+function parse (string) {
+  if (!string) {
+    throw new TypeError('argument string is required')
+  }
+
+  // support req/res-like objects as argument
+  var header = typeof string === 'object'
+    ? getcontenttype(string)
+    : string
+
+  if (typeof header !== 'string') {
+    throw new TypeError('argument string is required to be a string')
+  }
+
+  var index = header.indexOf(';')
+  var type = index !== -1
+    ? header.substr(0, index).trim()
+    : header.trim()
+
+  if (!TYPE_REGEXP.test(type)) {
+    throw new TypeError('invalid media type')
+  }
+
+  var obj = new ContentType(type.toLowerCase())
+
+  // parse parameters
+  if (index !== -1) {
+    var key
+    var match
+    var value
+
+    PARAM_REGEXP.lastIndex = index
+
+    while ((match = PARAM_REGEXP.exec(header))) {
+      if (match.index !== index) {
+        throw new TypeError('invalid parameter format')
+      }
+
+      index += match[0].length
+      key = match[1].toLowerCase()
+      value = match[2]
+
+      if (value[0] === '"') {
+        // remove quotes and escapes
+        value = value
+          .substr(1, value.length - 2)
+          .replace(QESC_REGEXP, '$1')
+      }
+
+      obj.parameters[key] = value
+    }
+
+    if (index !== header.length) {
+      throw new TypeError('invalid parameter format')
+    }
+  }
+
+  return obj
+}
+
+/**
+ * Get content-type from req/res objects.
+ *
+ * @param {object}
+ * @return {Object}
+ * @private
+ */
+
+function getcontenttype (obj) {
+  var header
+
+  if (typeof obj.getHeader === 'function') {
+    // res-like
+    header = obj.getHeader('content-type')
+  } else if (typeof obj.headers === 'object') {
+    // req-like
+    header = obj.headers && obj.headers['content-type']
+  }
+
+  if (typeof header !== 'string') {
+    throw new TypeError('content-type header is missing from object')
+  }
+
+  return header
+}
+
+/**
+ * Quote a string if necessary.
+ *
+ * @param {string} val
+ * @return {string}
+ * @private
+ */
+
+function qstring (val) {
+  var str = String(val)
+
+  // no need to quote tokens
+  if (TOKEN_REGEXP.test(str)) {
+    return str
+  }
+
+  if (str.length > 0 && !TEXT_REGEXP.test(str)) {
+    throw new TypeError('invalid parameter value')
+  }
+
+  return '"' + str.replace(QUOTE_REGEXP, '\\$1') + '"'
+}
+
+/**
+ * Class to represent a content type.
+ * @private
+ */
+function ContentType (type) {
+  this.parameters = Object.create(null)
+  this.type = type
+}

+{
+  "name": "content-type",
+  "description": "Create and parse HTTP Content-Type header",
+  "version": "1.0.4",
+  "author": "Douglas Christopher Wilson <doug@somethingdoug.com>",
+  "license": "MIT",
+  "keywords": [
+    "content-type",
+    "http",
+    "req",
+    "res",
+    "rfc7231"
+  ],
+  "repository": "jshttp/content-type",
+  "devDependencies": {
+    "eslint": "3.19.0",
+    "eslint-config-standard": "10.2.1",
+    "eslint-plugin-import": "2.7.0",
+    "eslint-plugin-node": "5.1.1",
+    "eslint-plugin-promise": "3.5.0",
+    "eslint-plugin-standard": "3.0.1",
+    "istanbul": "0.4.5",
+    "mocha": "~1.21.5"
+  },
+  "files": [
+    "LICENSE",
+    "HISTORY.md",
+    "README.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.6"
+  },
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --check-leaks --bail test/",
+    "test-ci": "istanbul cover node_modules/mocha/bin/_mocha --report lcovonly -- --reporter spec --check-leaks test/",
+    "test-cov": "istanbul cover node_modules/mocha/bin/_mocha -- --reporter dot --check-leaks test/"
+  }
+}

+1.4.6 / 2021-11-16
+==================
+
+  * deps: cookie@0.4.1
+
+1.4.5 / 2020-03-14
+==================
+
+  * deps: cookie@0.4.0
+
+1.4.4 / 2019-02-12
+==================
+
+  * perf: normalize `secret` argument only once
+
+1.4.3 / 2016-05-26
+==================
+
+  * deps: cookie@0.3.1
+    - perf: use for loop in parse
+
+1.4.2 / 2016-05-20
+==================
+
+  * deps: cookie@0.2.4
+    - perf: enable strict mode
+    - perf: use for loop in parse
+    - perf: use string concatenation for serialization
+
+1.4.1 / 2016-01-11
+==================
+
+  * deps: cookie@0.2.3
+  * perf: enable strict mode
+
+1.4.0 / 2015-09-18
+==================
+
+  * Accept array of secrets in addition to a single secret
+  * Fix `JSONCookie` to return `undefined` for non-string arguments
+  * Fix `signedCookie` to return `undefined` for non-string arguments
+  * deps: cookie@0.2.2
+
+1.3.5 / 2015-05-19
+==================
+
+  * deps: cookie@0.1.3
+    - Slight optimizations
+
+1.3.4 / 2015-02-15
+==================
+
+  * deps: cookie-signature@1.0.6
+
+1.3.3 / 2014-09-05
+==================
+
+  * deps: cookie-signature@1.0.5
+
+1.3.2 / 2014-06-26
+==================
+
+  * deps: cookie-signature@1.0.4
+    - fix for timing attacks
+
+1.3.1 / 2014-06-17
+==================
+
+  * actually export `signedCookie`
+
+1.3.0 / 2014-06-17
+==================
+
+  * add `signedCookie` export for single cookie unsigning
+
+1.2.0 / 2014-06-17
+==================
+
+  * export parsing functions
+  * `req.cookies` and `req.signedCookies` are now plain objects
+  * slightly faster parsing of many cookies
+
+1.1.0 / 2014-05-12
+==================
+
+  * Support for NodeJS version 0.8
+  * deps: cookie@0.1.2
+    - Fix for maxAge == 0
+    - made compat with expires field
+    - tweak maxAge NaN error message
+
+1.0.1 / 2014-02-20
+==================
+
+  * add missing dependencies
+
+1.0.0 / 2014-02-15
+==================
+
+  * Genesis from `connect`

+(The MIT License)
+
+Copyright (c) 2014 TJ Holowaychuk <tj@vision-media.ca>
+Copyright (c) 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.

+# cookie-parser
+
+[![NPM Version][npm-version-image]][npm-url]
+[![NPM Downloads][npm-downloads-image]][npm-url]
+[![Build Status][ci-image]][ci-url]
+[![Test Coverage][coveralls-image]][coveralls-url]
+
+Parse `Cookie` header and populate `req.cookies` with an object keyed by the
+cookie names. Optionally you may enable signed cookie support by passing a
+`secret` string, which assigns `req.secret` so it may be used by other
+middleware.
+
+## Installation
+
+```sh
+$ npm install cookie-parser
+```
+
+## API
+
+```js
+var cookieParser = require('cookie-parser')
+```
+
+### cookieParser(secret, options)
+
+Create a new cookie parser middleware function using the given `secret` and
+`options`.
+
+- `secret` a string or array used for signing cookies. This is optional and if
+  not specified, will not parse signed cookies. If a string is provided, this
+  is used as the secret. If an array is provided, an attempt will be made to
+  unsign the cookie with each secret in order.
+- `options` an object that is passed to `cookie.parse` as the second option. See
+  [cookie](https://www.npmjs.org/package/cookie) for more information.
+  - `decode` a function to decode the value of the cookie
+
+The middleware will parse the `Cookie` header on the request and expose the
+cookie data as the property `req.cookies` and, if a `secret` was provided, as
+the property `req.signedCookies`. These properties are name value pairs of the
+cookie name to cookie value.
+
+When `secret` is provided, this module will unsign and validate any signed cookie
+values and move those name value pairs from `req.cookies` into `req.signedCookies`.
+A signed cookie is a cookie that has a value prefixed with `s:`. Signed cookies
+that fail signature validation will have the value `false` instead of the tampered
+value.
+
+In addition, this module supports special "JSON cookies". These are cookie where
+the value is prefixed with `j:`. When these values are encountered, the value will
+be exposed as the result of `JSON.parse`. If parsing fails, the original value will
+remain.
+
+### cookieParser.JSONCookie(str)
+
+Parse a cookie value as a JSON cookie. This will return the parsed JSON value
+if it was a JSON cookie, otherwise, it will return the passed value.
+
+### cookieParser.JSONCookies(cookies)
+
+Given an object, this will iterate over the keys and call `JSONCookie` on each
+value, replacing the original value with the parsed value. This returns the
+same object that was passed in.
+
+### cookieParser.signedCookie(str, secret)
+
+Parse a cookie value as a signed cookie. This will return the parsed unsigned
+value if it was a signed cookie and the signature was valid. If the value was
+not signed, the original value is returned. If the value was signed but the
+signature could not be validated, `false` is returned.
+
+The `secret` argument can be an array or string. If a string is provided, this
+is used as the secret. If an array is provided, an attempt will be made to
+unsign the cookie with each secret in order.
+
+### cookieParser.signedCookies(cookies, secret)
+
+Given an object, this will iterate over the keys and check if any value is a
+signed cookie. If it is a signed cookie and the signature is valid, the key
+will be deleted from the object and added to the new object that is returned.
+
+The `secret` argument can be an array or string. If a string is provided, this
+is used as the secret. If an array is provided, an attempt will be made to
+unsign the cookie with each secret in order.
+
+## Example
+
+```js
+var express = require('express')
+var cookieParser = require('cookie-parser')
+
+var app = express()
+app.use(cookieParser())
+
+app.get('/', function (req, res) {
+  // Cookies that have not been signed
+  console.log('Cookies: ', req.cookies)
+
+  // Cookies that have been signed
+  console.log('Signed Cookies: ', req.signedCookies)
+})
+
+app.listen(8080)
+
+// curl command that sends an HTTP request with two cookies
+// curl http://127.0.0.1:8080 --cookie "Cho=Kim;Greet=Hello"
+```
+
+## License
+
+[MIT](LICENSE)
+
+[ci-image]: https://badgen.net/github/checks/expressjs/cookie-parser/master?label=ci
+[ci-url]: https://github.com/expressjs/cookie-parser/actions?query=workflow%3Aci
+[coveralls-image]: https://badgen.net/coveralls/c/github/expressjs/cookie-parser/master
+[coveralls-url]: https://coveralls.io/r/expressjs/cookie-parser?branch=master
+[npm-downloads-image]: https://badgen.net/npm/dm/cookie-parser
+[npm-url]: https://npmjs.org/package/cookie-parser
+[npm-version-image]: https://badgen.net/npm/v/cookie-parser

+/*!
+ * cookie-parser
+ * Copyright(c) 2014 TJ Holowaychuk
+ * Copyright(c) 2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict'
+
+/**
+ * Module dependencies.
+ * @private
+ */
+
+var cookie = require('cookie')
+var signature = require('cookie-signature')
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = cookieParser
+module.exports.JSONCookie = JSONCookie
+module.exports.JSONCookies = JSONCookies
+module.exports.signedCookie = signedCookie
+module.exports.signedCookies = signedCookies
+
+/**
+ * Parse Cookie header and populate `req.cookies`
+ * with an object keyed by the cookie names.
+ *
+ * @param {string|array} [secret] A string (or array of strings) representing cookie signing secret(s).
+ * @param {Object} [options]
+ * @return {Function}
+ * @public
+ */
+
+function cookieParser (secret, options) {
+  var secrets = !secret || Array.isArray(secret)
+    ? (secret || [])
+    : [secret]
+
+  return function cookieParser (req, res, next) {
+    if (req.cookies) {
+      return next()
+    }
+
+    var cookies = req.headers.cookie
+
+    req.secret = secrets[0]
+    req.cookies = Object.create(null)
+    req.signedCookies = Object.create(null)
+
+    // no cookies
+    if (!cookies) {
+      return next()
+    }
+
+    req.cookies = cookie.parse(cookies, options)
+
+    // parse signed cookies
+    if (secrets.length !== 0) {
+      req.signedCookies = signedCookies(req.cookies, secrets)
+      req.signedCookies = JSONCookies(req.signedCookies)
+    }
+
+    // parse JSON cookies
+    req.cookies = JSONCookies(req.cookies)
+
+    next()
+  }
+}
+
+/**
+ * Parse JSON cookie string.
+ *
+ * @param {String} str
+ * @return {Object} Parsed object or undefined if not json cookie
+ * @public
+ */
+
+function JSONCookie (str) {
+  if (typeof str !== 'string' || str.substr(0, 2) !== 'j:') {
+    return undefined
+  }
+
+  try {
+    return JSON.parse(str.slice(2))
+  } catch (err) {
+    return undefined
+  }
+}
+
+/**
+ * Parse JSON cookies.
+ *
+ * @param {Object} obj
+ * @return {Object}
+ * @public
+ */
+
+function JSONCookies (obj) {
+  var cookies = Object.keys(obj)
+  var key
+  var val
+
+  for (var i = 0; i < cookies.length; i++) {
+    key = cookies[i]
+    val = JSONCookie(obj[key])
+
+    if (val) {
+      obj[key] = val
+    }
+  }
+
+  return obj
+}
+
+/**
+ * Parse a signed cookie string, return the decoded value.
+ *
+ * @param {String} str signed cookie string
+ * @param {string|array} secret
+ * @return {String} decoded value
+ * @public
+ */
+
+function signedCookie (str, secret) {
+  if (typeof str !== 'string') {
+    return undefined
+  }
+
+  if (str.substr(0, 2) !== 's:') {
+    return str
+  }
+
+  var secrets = !secret || Array.isArray(secret)
+    ? (secret || [])
+    : [secret]
+
+  for (var i = 0; i < secrets.length; i++) {
+    var val = signature.unsign(str.slice(2), secrets[i])
+
+    if (val !== false) {
+      return val
+    }
+  }
+
+  return false
+}
+
+/**
+ * Parse signed cookies, returning an object containing the decoded key/value
+ * pairs, while removing the signed key from obj.
+ *
+ * @param {Object} obj
+ * @param {string|array} secret
+ * @return {Object}
+ * @public
+ */
+
+function signedCookies (obj, secret) {
+  var cookies = Object.keys(obj)
+  var dec
+  var key
+  var ret = Object.create(null)
+  var val
+
+  for (var i = 0; i < cookies.length; i++) {
+    key = cookies[i]
+    val = obj[key]
+    dec = signedCookie(val, secret)
+
+    if (val !== dec) {
+      ret[key] = dec
+      delete obj[key]
+    }
+  }
+
+  return ret
+}

+{
+  "name": "cookie-parser",
+  "description": "Parse HTTP request cookies",
+  "version": "1.4.6",
+  "author": "TJ Holowaychuk <tj@vision-media.ca> (http://tjholowaychuk.com)",
+  "contributors": [
+    "Douglas Christopher Wilson <doug@somethingdoug.com>"
+  ],
+  "license": "MIT",
+  "repository": "expressjs/cookie-parser",
+  "keywords": [
+    "cookie",
+    "middleware"
+  ],
+  "dependencies": {
+    "cookie": "0.4.1",
+    "cookie-signature": "1.0.6"
+  },
+  "devDependencies": {
+    "eslint": "7.32.0",
+    "eslint-config-standard": "14.1.1",
+    "eslint-plugin-import": "2.25.2",
+    "eslint-plugin-markdown": "2.2.1",
+    "eslint-plugin-node": "11.1.0",
+    "eslint-plugin-promise": "4.3.1",
+    "eslint-plugin-standard": "4.1.0",
+    "mocha": "9.1.3",
+    "nyc": "15.1.0",
+    "supertest": "6.1.6"
+  },
+  "files": [
+    "LICENSE",
+    "HISTORY.md",
+    "index.js"
+  ],
+  "engines": {
+    "node": ">= 0.8.0"
+  },
+  "scripts": {
+    "lint": "eslint .",
+    "test": "mocha --reporter spec --bail --check-leaks test/",
+    "test-ci": "nyc --reporter=lcov --reporter=text npm test",
+    "test-cov": "nyc --reporter=html --reporter=text npm test"
+  }
+}

+support
+test
+examples
+*.sock

+1.0.6 / 2015-02-03
+==================
+
+* use `npm test` instead of `make test` to run tests
+* clearer assertion messages when checking input
+
+
+1.0.5 / 2014-09-05
+==================
+
+* add license to package.json
+
+1.0.4 / 2014-06-25
+==================
+
+ * corrected avoidance of timing attacks (thanks @tenbits!)
+
+1.0.3 / 2014-01-28
+==================
+
+ * [incorrect] fix for timing attacks
+
+1.0.2 / 2014-01-28
+==================
+
+ * fix missing repository warning
+ * fix typo in test
+
+1.0.1 / 2013-04-15
+==================
+
+  * Revert "Changed underlying HMAC algo. to sha512."
+  * Revert "Fix for timing attacks on MAC verification."
+
+0.0.1 / 2010-01-03
+==================
+
+  * Initial release

+
+# cookie-signature
+
+  Sign and unsign cookies.
+
+## Example
+
+```js
+var cookie = require('cookie-signature');
+
+var val = cookie.sign('hello', 'tobiiscool');
+val.should.equal('hello.DGDUkGlIkCzPz+C0B064FNgHdEjox7ch8tOBGslZ5QI');
+
+var val = cookie.sign('hello', 'tobiiscool');
+cookie.unsign(val, 'tobiiscool').should.equal('hello');
+cookie.unsign(val, 'luna').should.be.false;
+```
+
+## License 
+
+(The MIT License)
+
+Copyright (c) 2012 LearnBoost <tj@learnboost.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.
\ No newline at end of file

+/**
+ * Module dependencies.
+ */
+
+var crypto = require('crypto');
+
+/**
+ * Sign the given `val` with `secret`.
+ *
+ * @param {String} val
+ * @param {String} secret
+ * @return {String}
+ * @api private
+ */
+
+exports.sign = function(val, secret){
+  if ('string' != typeof val) throw new TypeError("Cookie value must be provided as a string.");
+  if ('string' != typeof secret) throw new TypeError("Secret string must be provided.");
+  return val + '.' + crypto
+    .createHmac('sha256', secret)
+    .update(val)
+    .digest('base64')
+    .replace(/\=+$/, '');
+};
+
+/**
+ * Unsign and decode the given `val` with `secret`,
+ * returning `false` if the signature is invalid.
+ *
+ * @param {String} val
+ * @param {String} secret
+ * @return {String|Boolean}
+ * @api private
+ */
+
+exports.unsign = function(val, secret){
+  if ('string' != typeof val) throw new TypeError("Signed cookie string must be provided.");
+  if ('string' != typeof secret) throw new TypeError("Secret string must be provided.");
+  var str = val.slice(0, val.lastIndexOf('.'))
+    , mac = exports.sign(str, secret);
+  
+  return sha1(mac) == sha1(val) ? str : false;
+};
+
+/**
+ * Private
+ */
+
+function sha1(str){
+  return crypto.createHash('sha1').update(str).digest('hex');
+}

+{
+  "name": "cookie-signature",
+  "version": "1.0.6",
+  "description": "Sign and unsign cookies",
+  "keywords": ["cookie", "sign", "unsign"],
+  "author": "TJ Holowaychuk <tj@learnboost.com>",
+  "license": "MIT",
+  "repository": { "type": "git", "url": "https://github.com/visionmedia/node-cookie-signature.git"},
+  "dependencies": {},
+  "devDependencies": {
+    "mocha": "*",
+    "should": "*"
+  },
+  "scripts": {
+    "test": "mocha --require should --reporter spec"
+  },
+  "main": "index"
+}

+0.4.1 / 2020-04-21
+==================
+
+  * Fix `maxAge` option to reject invalid values
+
+0.4.0 / 2019-05-15
+==================
+
+  * Add `SameSite=None` support
+
+0.3.1 / 2016-05-26
+==================
+
+  * Fix `sameSite: true` to work with draft-7 clients
+    - `true` now sends `SameSite=Strict` instead of `SameSite`
+
+0.3.0 / 2016-05-26
+==================
+
+  * Add `sameSite` option
+    - Replaces `firstPartyOnly` option, never implemented by browsers
+  * Improve error message when `encode` is not a function
+  * Improve error message when `expires` is not a `Date`
+
+0.2.4 / 2016-05-20
+==================
+
+  * perf: enable strict mode
+  * perf: use for loop in parse
+  * perf: use string concatination for serialization
+
+0.2.3 / 2015-10-25
+==================
+
+  * Fix cookie `Max-Age` to never be a floating point number
+
+0.2.2 / 2015-09-17
+==================
+
+  * Fix regression when setting empty cookie value
+    - Ease the new restriction, which is just basic header-level validation
+  * Fix typo in invalid value errors
+
+0.2.1 / 2015-09-17
+==================
+
+  * Throw on invalid values provided to `serialize`
+    - Ensures the resulting string is a valid HTTP header value
+
+0.2.0 / 2015-08-13
+==================
+
+  * Add `firstPartyOnly` option
+  * Throw better error for invalid argument to parse
+  * perf: hoist regular expression
+
+0.1.5 / 2015-09-17
+==================
+
+  * Fix regression when setting empty cookie value
+    - Ease the new restriction, which is just basic header-level validation
+  * Fix typo in invalid value errors
+
+0.1.4 / 2015-09-17
+==================
+
+  * Throw better error for invalid argument to parse
+  * Throw on invalid values provided to `serialize`
+    - Ensures the resulting string is a valid HTTP header value
+
+0.1.3 / 2015-05-19
+==================
+
+  * Reduce the scope of try-catch deopt
+  * Remove argument reassignments
+
+0.1.2 / 2014-04-16
+==================
+
+  * Remove unnecessary files from npm package
+
+0.1.1 / 2014-02-23
+==================
+
+  * Fix bad parse when cookie value contained a comma
+  * Fix support for `maxAge` of `0`
+
+0.1.0 / 2013-05-01
+==================
+
+  * Add `decode` option
+  * Add `encode` option
+
+0.0.6 / 2013-04-08
+==================
+
+  * Ignore cookie parts missing `=`
+
+0.0.5 / 2012-10-29
+==================
+
+  * Return raw cookie value if value unescape errors
+
+0.0.4 / 2012-06-21
+==================
+
+  * Use encode/decodeURIComponent for cookie encoding/decoding
+    - Improve server/client interoperability
+
+0.0.3 / 2012-06-06
+==================
+
+  * Only escape special characters per the cookie RFC
+
+0.0.2 / 2012-06-01
+==================
+
+  * Fix `maxAge` option to not throw error
+
+0.0.1 / 2012-05-28
+==================
+
+  * Add more tests
+
+0.0.0 / 2012-05-28
+==================
+
+  * Initial release

+(The MIT License)
+
+Copyright (c) 2012-2014 Roman Shtylman <shtylman@gmail.com>
+Copyright (c) 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.
+