├── .gitignore ├── LICENSE ├── README.md ├── Voucher iOS App ├── AppDelegate.swift ├── Assets.xcassets │ └── AppIcon.appiconset │ │ └── Contents.json ├── Base.lproj │ ├── LaunchScreen.storyboard │ └── Main.storyboard ├── Info.plist └── ViewController.swift ├── Voucher tvOS App ├── AppDelegate.swift ├── Assets.xcassets │ ├── App Icon & Top Shelf Image.brandassets │ │ ├── App Icon - Large.imagestack │ │ │ ├── Back.imagestacklayer │ │ │ │ ├── Content.imageset │ │ │ │ │ └── Contents.json │ │ │ │ └── Contents.json │ │ │ ├── Contents.json │ │ │ ├── Front.imagestacklayer │ │ │ │ ├── Content.imageset │ │ │ │ │ └── Contents.json │ │ │ │ └── Contents.json │ │ │ └── Middle.imagestacklayer │ │ │ │ ├── Content.imageset │ │ │ │ └── Contents.json │ │ │ │ └── Contents.json │ │ ├── App Icon - Small.imagestack │ │ │ ├── Back.imagestacklayer │ │ │ │ ├── Content.imageset │ │ │ │ │ └── Contents.json │ │ │ │ └── Contents.json │ │ │ ├── Contents.json │ │ │ ├── Front.imagestacklayer │ │ │ │ ├── Content.imageset │ │ │ │ │ └── Contents.json │ │ │ │ └── Contents.json │ │ │ └── Middle.imagestacklayer │ │ │ │ ├── Content.imageset │ │ │ │ └── Contents.json │ │ │ │ └── Contents.json │ │ ├── Contents.json │ │ └── Top Shelf Image.imageset │ │ │ └── Contents.json │ ├── Contents.json │ └── LaunchImage.launchimage │ │ └── Contents.json ├── AuthViewController.swift ├── Base.lproj │ └── Main.storyboard ├── Info.plist └── RootViewController.swift ├── Voucher.podspec ├── Voucher.xcodeproj ├── project.pbxproj ├── project.xcworkspace │ └── contents.xcworkspacedata └── xcshareddata │ └── xcschemes │ ├── Voucher iOS.xcscheme │ └── Voucher tvOS.xcscheme ├── Voucher ├── Client │ ├── VoucherClient.h │ └── VoucherClient.m ├── Info.plist ├── Server │ ├── VoucherServer.h │ └── VoucherServer.m ├── Voucher.h ├── VoucherCommon.h ├── VoucherStreamsController.h └── VoucherStreamsController.m └── VoucherTests ├── Info.plist └── VoucherTests.m /.gitignore: -------------------------------------------------------------------------------- 1 | # Xcode 2 | .DS_Store 3 | build/ 4 | *.pbxuser 5 | !default.pbxuser 6 | *.mode1v3 7 | !default.mode1v3 8 | *.mode2v3 9 | !default.mode2v3 10 | *.perspectivev3 11 | !default.perspectivev3 12 | *.xccheckout 13 | xcuserdata 14 | profile 15 | *.moved-aside 16 | DerivedData 17 | .idea/ 18 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | The MIT License (MIT) 2 | 3 | Copyright (c) 2015 Riz 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | 23 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Voucher 2 | 3 | The new Apple TV is amazing but the keyboard input leaves a lot to be desired. Instead of making your users type credentials into their TV, you can use Voucher to let them easily sign into the TV app using your iOS app. 4 | 5 | ### How Does It Work? 6 | 7 | Voucher uses [Bonjour](https://developer.apple.com/bonjour/), which is a technology to discover other devices on your network, and what they can do. When active, Voucher on tvOS starts looking in your local network and over [AWDL (Apple Wireless Direct Link)](http://stackoverflow.com/questions/19587701/what-is-awdl-apple-wireless-direct-link-and-how-does-it-work) for any Voucher Server, on iOS. 8 | 9 | Once it finds a Voucher Server, it asks it for authentication. Here's the demo app: 10 |

Sample tvOS App

11 | 12 | The demo iOS app can then show a notification to the user (you can show whatever UI you want, or even no UI): 13 |

iOS app shows a dialog

14 | 15 | If the user accepts, then the iOS app can send some authentication data back to the tvOS app (in this case, an auth token string) 16 |

Sample tvOS App

17 | 18 | ## Installation 19 | 20 | Voucher is available through [Carthage](https://github.com/Carthage/Carthage) and [CocoaPods](https://cocoapods.org). You can also manually install it, if that's your jam. 21 | 22 | ### Carthage 23 | ``` 24 | github "rsattar/Voucher" 25 | ``` 26 | 27 | ### CocoaPods 28 | ``` 29 | pod 'Voucher' 30 | ``` 31 | 32 | ### Manual 33 | - Clone the repo to your computer 34 | - Copy only the source files in `Voucher` subfolder over to your project 35 | 36 | 37 | ## Using Voucher 38 | 39 | In your tvOS app, when the user wants to authenticate, you should create a `VoucherClient` instance and start it: 40 | 41 | ### tvOS (Requesting Auth) 42 | When the user triggers a "Login" button, your app should display some UI instructing them to open their iOS App to finish logging in, and then start the voucher client, like below: 43 | 44 | ```swift 45 | import Voucher 46 | 47 | func startVoucherClient() { 48 | let uniqueId = "SomethingUnique"; 49 | self.voucher = VoucherClient(uniqueSharedId: uniqueId) 50 | 51 | self.voucher.startSearchingWithCompletion { [unowned self] authData, displayName, error in 52 | 53 | // (authData is of type NSData) 54 | if authData != nil { 55 | // User granted permission on iOS app! 56 | self.authenticationSucceeded(authData!, from: displayName) 57 | } else { 58 | self.authenticationFailed() 59 | } 60 | } 61 | } 62 | 63 | ``` 64 | 65 | 66 | ### iOS (Providing Auth) 67 | If your iOS app has auth credentials, it should start a Voucher Server, so it can answer any requests for a login. I'd recommend starting the server when (and if) the user is logged in. 68 | 69 | ```swift 70 | import Voucher 71 | 72 | func startVoucherServer() { 73 | let uniqueId = "SomethingUnique" 74 | self.server = VoucherServer(uniqueSharedId: uniqueId) 75 | 76 | self.server.startAdvertisingWithRequestHandler { (displayName, responseHandler) -> Void in 77 | 78 | let alertController = UIAlertController(title: "Allow Auth?", message: "Allow \"\(displayName)\" access to your login?", preferredStyle: .Alert) 79 | alertController.addAction(UIAlertAction(title: "Not Now", style: .Cancel, handler: { action in 80 | responseHandler(nil, nil) 81 | })) 82 | 83 | alertController.addAction(UIAlertAction(title: "Allow", style: .Default, handler: { action in 84 | let authData = "THIS IS AN AUTH TOKEN".dataUsingEncoding(NSUTF8StringEncoding)! 85 | responseHandler(authData, nil) 86 | })) 87 | 88 | self.presentViewController(alertController, animated: true, completion: nil) 89 | 90 | } 91 | } 92 | 93 | ``` 94 | 95 | ## Recommendations 96 | 97 | ### Use tokens, not passwords 98 | While you can send whatever data you like back to tvOS, you should you pass back an **OAuth** token, or better yet, generate some kind of a *single-use token* on your server and send that. [Cluster](https://cluster.co), for example, uses single-use tokens to do auto-login from web to iOS app. Check out this [Medium post](https://library.launchkit.io/how-ios-9-s-safari-view-controller-could-completely-change-your-app-s-onboarding-experience-2bcf2305137f?source=your-stories) that shows how I do it! The same model can apply for iOS to tvOS logins. 99 | 100 | ### Voucher can't be the only login option 101 | In your login screen, you must still show the manual entry UI according to the [App Store Submission Guidelines](http://www.appstorereviewguidelineshistory.com/articles/2015-10-21-guidelines-updated-for-tvos-apps/) (Section 2.27). Add messaging that, in addition to the on screen form, the user can simply open the iOS app to login. 102 | 103 | ## Todo / Things I'd Love Your Help With! 104 | * Encryption? Currently Voucher *does not* encrypt any data between the server and the client, so I suppose if someone wanted your credentials (See **Recommendations** section above), they could have a packet sniffer on your local network and access your credentials. 105 | 106 | * Make Voucher Server work on `OS X`, and even `tvOS`! Would probably just need new framework targets, and additional test apps. 107 | 108 | ## Further Reading 109 | Check out [Benny Wong](https://github.com/bdotdub)'s post on [why Apple TV sign in sucks](https://medium.com/@bdotdub/signing-into-apps-on-apple-tv-sucks-d36fd00e6712). He also has a [demo tvOS Authing project](https://github.com/bdotdub/TriplePlay), which you should check out! 110 | 111 | 112 | ## Requirements 113 | * iOS 7.0 and above 114 | * tvOS 9.0 115 | * Xcode 8 116 | 117 | 118 | ## License 119 | `Voucher` is available using an MIT license. See the LICENSE file for more info. 120 | 121 | ## I'd Love to Know If You're Using Voucher! 122 | [Post to this Github "issue" I made to help us track who's using Voucher](https://github.com/rsattar/Voucher/issues/2) :+1: 123 | -------------------------------------------------------------------------------- /Voucher iOS App/AppDelegate.swift: -------------------------------------------------------------------------------- 1 | // 2 | // AppDelegate.swift 3 | // Voucher iOS App 4 | // 5 | // Created by Rizwan Sattar on 11/7/15. 6 | // Copyright © 2015 Rizwan Sattar. All rights reserved. 7 | // 8 | 9 | import UIKit 10 | import Voucher 11 | 12 | @UIApplicationMain 13 | class AppDelegate: UIResponder, UIApplicationDelegate { 14 | 15 | var window: UIWindow? 16 | 17 | func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool { 18 | // Override point for customization after application launch. 19 | return true 20 | } 21 | 22 | func applicationWillResignActive(_ application: UIApplication) { 23 | // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state. 24 | // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game. 25 | } 26 | 27 | func applicationDidEnterBackground(_ application: UIApplication) { 28 | // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later. 29 | // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits. 30 | } 31 | 32 | func applicationWillEnterForeground(_ application: UIApplication) { 33 | // Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background. 34 | } 35 | 36 | func applicationDidBecomeActive(_ application: UIApplication) { 37 | // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface. 38 | } 39 | 40 | func applicationWillTerminate(_ application: UIApplication) { 41 | // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:. 42 | } 43 | 44 | 45 | } 46 | 47 | -------------------------------------------------------------------------------- /Voucher iOS App/Assets.xcassets/AppIcon.appiconset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "iphone", 5 | "size" : "29x29", 6 | "scale" : "2x" 7 | }, 8 | { 9 | "idiom" : "iphone", 10 | "size" : "29x29", 11 | "scale" : "3x" 12 | }, 13 | { 14 | "idiom" : "iphone", 15 | "size" : "40x40", 16 | "scale" : "2x" 17 | }, 18 | { 19 | "idiom" : "iphone", 20 | "size" : "40x40", 21 | "scale" : "3x" 22 | }, 23 | { 24 | "idiom" : "iphone", 25 | "size" : "60x60", 26 | "scale" : "2x" 27 | }, 28 | { 29 | "idiom" : "iphone", 30 | "size" : "60x60", 31 | "scale" : "3x" 32 | }, 33 | { 34 | "idiom" : "ipad", 35 | "size" : "29x29", 36 | "scale" : "1x" 37 | }, 38 | { 39 | "idiom" : "ipad", 40 | "size" : "29x29", 41 | "scale" : "2x" 42 | }, 43 | { 44 | "idiom" : "ipad", 45 | "size" : "40x40", 46 | "scale" : "1x" 47 | }, 48 | { 49 | "idiom" : "ipad", 50 | "size" : "40x40", 51 | "scale" : "2x" 52 | }, 53 | { 54 | "idiom" : "ipad", 55 | "size" : "76x76", 56 | "scale" : "1x" 57 | }, 58 | { 59 | "idiom" : "ipad", 60 | "size" : "76x76", 61 | "scale" : "2x" 62 | } 63 | ], 64 | "info" : { 65 | "version" : 1, 66 | "author" : "xcode" 67 | } 68 | } -------------------------------------------------------------------------------- /Voucher iOS App/Base.lproj/LaunchScreen.storyboard: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | -------------------------------------------------------------------------------- /Voucher iOS App/Base.lproj/Main.storyboard: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 28 | 29 | 30 | 31 | 38 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | -------------------------------------------------------------------------------- /Voucher iOS App/Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | en 7 | CFBundleExecutable 8 | $(EXECUTABLE_NAME) 9 | CFBundleIdentifier 10 | $(PRODUCT_BUNDLE_IDENTIFIER) 11 | CFBundleInfoDictionaryVersion 12 | 6.0 13 | CFBundleName 14 | $(PRODUCT_NAME) 15 | CFBundlePackageType 16 | APPL 17 | CFBundleShortVersionString 18 | 1.0 19 | CFBundleSignature 20 | ???? 21 | CFBundleVersion 22 | 1 23 | LSRequiresIPhoneOS 24 | 25 | UILaunchStoryboardName 26 | LaunchScreen 27 | UIMainStoryboardFile 28 | Main 29 | UIRequiredDeviceCapabilities 30 | 31 | armv7 32 | 33 | UISupportedInterfaceOrientations 34 | 35 | UIInterfaceOrientationPortrait 36 | UIInterfaceOrientationLandscapeLeft 37 | UIInterfaceOrientationLandscapeRight 38 | 39 | UISupportedInterfaceOrientations~ipad 40 | 41 | UIInterfaceOrientationPortrait 42 | UIInterfaceOrientationPortraitUpsideDown 43 | UIInterfaceOrientationLandscapeLeft 44 | UIInterfaceOrientationLandscapeRight 45 | 46 | 47 | 48 | -------------------------------------------------------------------------------- /Voucher iOS App/ViewController.swift: -------------------------------------------------------------------------------- 1 | // 2 | // ViewController.swift 3 | // Voucher iOS App 4 | // 5 | // Created by Rizwan Sattar on 11/7/15. 6 | // Copyright © 2015 Rizwan Sattar. All rights reserved. 7 | // 8 | 9 | import UIKit 10 | import Voucher 11 | 12 | class ViewController: UIViewController, VoucherServerDelegate { 13 | 14 | var server: VoucherServer? 15 | 16 | @IBOutlet var serverStatusLabel: UILabel! 17 | @IBOutlet var connectionStatusLabel: UILabel! 18 | 19 | deinit { 20 | self.server?.stop() 21 | self.server?.delegate = nil 22 | self.server = nil 23 | } 24 | 25 | override func viewDidLoad() { 26 | super.viewDidLoad() 27 | let uniqueId = "VoucherTest" 28 | self.server = VoucherServer(uniqueSharedId: uniqueId) 29 | self.server?.delegate = self 30 | } 31 | 32 | override func didReceiveMemoryWarning() { 33 | super.didReceiveMemoryWarning() 34 | // Dispose of any resources that can be recreated. 35 | } 36 | 37 | override func viewDidAppear(_ animated: Bool) { 38 | super.viewDidAppear(animated) 39 | 40 | self.server?.startAdvertising { (displayName, responseHandler) -> Void in 41 | 42 | let alertController = UIAlertController(title: "Allow Auth?", message: "Allow \"\(displayName)\" access to your login?", preferredStyle: .alert) 43 | alertController.addAction(UIAlertAction(title: "Not Now", style: .cancel, handler: { action in 44 | responseHandler(nil, nil) 45 | })) 46 | 47 | alertController.addAction(UIAlertAction(title: "Allow", style: .default, handler: { action in 48 | // For our authData, use a token string (to simulate an OAuth token, for example) 49 | let authData = "THIS IS AN AUTH TOKEN".data(using: String.Encoding.utf8)! 50 | responseHandler(authData, nil) 51 | })) 52 | 53 | self.present(alertController, animated: true, completion: nil) 54 | 55 | } 56 | } 57 | 58 | override func viewWillDisappear(_ animated: Bool) { 59 | super.viewWillDisappear(animated) 60 | 61 | self.server?.stop() 62 | } 63 | 64 | // MARK: - VoucherServerDelegate 65 | 66 | func voucherServer(_ server: VoucherServer, didUpdateAdvertising isAdvertising: Bool) { 67 | var text = "❌ Server Offline." 68 | if (isAdvertising) { 69 | text = "✅ Server Online." 70 | } 71 | self.serverStatusLabel.text = text 72 | self.connectionStatusLabel.isHidden = !isAdvertising 73 | } 74 | 75 | func voucherServer(_ server: VoucherServer, didUpdateConnectionToClient isConnectedToClient: Bool) { 76 | var text = "📡 Waiting for Connection..." 77 | if (isConnectedToClient) { 78 | text = "✅ Connected." 79 | } 80 | self.connectionStatusLabel.text = text 81 | } 82 | 83 | } 84 | 85 | -------------------------------------------------------------------------------- /Voucher tvOS App/AppDelegate.swift: -------------------------------------------------------------------------------- 1 | // 2 | // AppDelegate.swift 3 | // Voucher tvOS App 4 | // 5 | // Created by Rizwan Sattar on 11/7/15. 6 | // Copyright © 2015 Rizwan Sattar. All rights reserved. 7 | // 8 | 9 | import UIKit 10 | 11 | @UIApplicationMain 12 | class AppDelegate: UIResponder, UIApplicationDelegate { 13 | 14 | var window: UIWindow? 15 | 16 | func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool { 17 | // Override point for customization after application launch. 18 | return true 19 | } 20 | 21 | func applicationWillResignActive(_ application: UIApplication) { 22 | // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state. 23 | // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game. 24 | } 25 | 26 | func applicationDidEnterBackground(_ application: UIApplication) { 27 | // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later. 28 | // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits. 29 | } 30 | 31 | func applicationWillEnterForeground(_ application: UIApplication) { 32 | // Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background. 33 | } 34 | 35 | func applicationDidBecomeActive(_ application: UIApplication) { 36 | // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface. 37 | } 38 | 39 | func applicationWillTerminate(_ application: UIApplication) { 40 | // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:. 41 | } 42 | 43 | 44 | } 45 | 46 | -------------------------------------------------------------------------------- /Voucher tvOS App/Assets.xcassets/App Icon & Top Shelf Image.brandassets/App Icon - Large.imagestack/Back.imagestacklayer/Content.imageset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "tv", 5 | "scale" : "1x" 6 | } 7 | ], 8 | "info" : { 9 | "version" : 1, 10 | "author" : "xcode" 11 | } 12 | } -------------------------------------------------------------------------------- /Voucher tvOS App/Assets.xcassets/App Icon & Top Shelf Image.brandassets/App Icon - Large.imagestack/Back.imagestacklayer/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "info" : { 3 | "version" : 1, 4 | "author" : "xcode" 5 | } 6 | } -------------------------------------------------------------------------------- /Voucher tvOS App/Assets.xcassets/App Icon & Top Shelf Image.brandassets/App Icon - Large.imagestack/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "layers" : [ 3 | { 4 | "filename" : "Front.imagestacklayer" 5 | }, 6 | { 7 | "filename" : "Middle.imagestacklayer" 8 | }, 9 | { 10 | "filename" : "Back.imagestacklayer" 11 | } 12 | ], 13 | "info" : { 14 | "version" : 1, 15 | "author" : "xcode" 16 | } 17 | } 18 | -------------------------------------------------------------------------------- /Voucher tvOS App/Assets.xcassets/App Icon & Top Shelf Image.brandassets/App Icon - Large.imagestack/Front.imagestacklayer/Content.imageset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "tv", 5 | "scale" : "1x" 6 | } 7 | ], 8 | "info" : { 9 | "version" : 1, 10 | "author" : "xcode" 11 | } 12 | } -------------------------------------------------------------------------------- /Voucher tvOS App/Assets.xcassets/App Icon & Top Shelf Image.brandassets/App Icon - Large.imagestack/Front.imagestacklayer/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "info" : { 3 | "version" : 1, 4 | "author" : "xcode" 5 | } 6 | } -------------------------------------------------------------------------------- /Voucher tvOS App/Assets.xcassets/App Icon & Top Shelf Image.brandassets/App Icon - Large.imagestack/Middle.imagestacklayer/Content.imageset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "tv", 5 | "scale" : "1x" 6 | } 7 | ], 8 | "info" : { 9 | "version" : 1, 10 | "author" : "xcode" 11 | } 12 | } -------------------------------------------------------------------------------- /Voucher tvOS App/Assets.xcassets/App Icon & Top Shelf Image.brandassets/App Icon - Large.imagestack/Middle.imagestacklayer/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "info" : { 3 | "version" : 1, 4 | "author" : "xcode" 5 | } 6 | } -------------------------------------------------------------------------------- /Voucher tvOS App/Assets.xcassets/App Icon & Top Shelf Image.brandassets/App Icon - Small.imagestack/Back.imagestacklayer/Content.imageset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "tv", 5 | "scale" : "1x" 6 | } 7 | ], 8 | "info" : { 9 | "version" : 1, 10 | "author" : "xcode" 11 | } 12 | } -------------------------------------------------------------------------------- /Voucher tvOS App/Assets.xcassets/App Icon & Top Shelf Image.brandassets/App Icon - Small.imagestack/Back.imagestacklayer/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "info" : { 3 | "version" : 1, 4 | "author" : "xcode" 5 | } 6 | } -------------------------------------------------------------------------------- /Voucher tvOS App/Assets.xcassets/App Icon & Top Shelf Image.brandassets/App Icon - Small.imagestack/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "layers" : [ 3 | { 4 | "filename" : "Front.imagestacklayer" 5 | }, 6 | { 7 | "filename" : "Middle.imagestacklayer" 8 | }, 9 | { 10 | "filename" : "Back.imagestacklayer" 11 | } 12 | ], 13 | "info" : { 14 | "version" : 1, 15 | "author" : "xcode" 16 | } 17 | } 18 | -------------------------------------------------------------------------------- /Voucher tvOS App/Assets.xcassets/App Icon & Top Shelf Image.brandassets/App Icon - Small.imagestack/Front.imagestacklayer/Content.imageset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "tv", 5 | "scale" : "1x" 6 | } 7 | ], 8 | "info" : { 9 | "version" : 1, 10 | "author" : "xcode" 11 | } 12 | } -------------------------------------------------------------------------------- /Voucher tvOS App/Assets.xcassets/App Icon & Top Shelf Image.brandassets/App Icon - Small.imagestack/Front.imagestacklayer/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "info" : { 3 | "version" : 1, 4 | "author" : "xcode" 5 | } 6 | } -------------------------------------------------------------------------------- /Voucher tvOS App/Assets.xcassets/App Icon & Top Shelf Image.brandassets/App Icon - Small.imagestack/Middle.imagestacklayer/Content.imageset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "tv", 5 | "scale" : "1x" 6 | } 7 | ], 8 | "info" : { 9 | "version" : 1, 10 | "author" : "xcode" 11 | } 12 | } -------------------------------------------------------------------------------- /Voucher tvOS App/Assets.xcassets/App Icon & Top Shelf Image.brandassets/App Icon - Small.imagestack/Middle.imagestacklayer/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "info" : { 3 | "version" : 1, 4 | "author" : "xcode" 5 | } 6 | } -------------------------------------------------------------------------------- /Voucher tvOS App/Assets.xcassets/App Icon & Top Shelf Image.brandassets/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "assets" : [ 3 | { 4 | "size" : "1280x768", 5 | "idiom" : "tv", 6 | "filename" : "App Icon - Large.imagestack", 7 | "role" : "primary-app-icon" 8 | }, 9 | { 10 | "size" : "400x240", 11 | "idiom" : "tv", 12 | "filename" : "App Icon - Small.imagestack", 13 | "role" : "primary-app-icon" 14 | }, 15 | { 16 | "size" : "1920x720", 17 | "idiom" : "tv", 18 | "filename" : "Top Shelf Image.imageset", 19 | "role" : "top-shelf-image" 20 | } 21 | ], 22 | "info" : { 23 | "version" : 1, 24 | "author" : "xcode" 25 | } 26 | } 27 | -------------------------------------------------------------------------------- /Voucher tvOS App/Assets.xcassets/App Icon & Top Shelf Image.brandassets/Top Shelf Image.imageset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "tv", 5 | "scale" : "1x" 6 | } 7 | ], 8 | "info" : { 9 | "version" : 1, 10 | "author" : "xcode" 11 | } 12 | } -------------------------------------------------------------------------------- /Voucher tvOS App/Assets.xcassets/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "info" : { 3 | "version" : 1, 4 | "author" : "xcode" 5 | } 6 | } -------------------------------------------------------------------------------- /Voucher tvOS App/Assets.xcassets/LaunchImage.launchimage/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "orientation" : "landscape", 5 | "idiom" : "tv", 6 | "extent" : "full-screen", 7 | "minimum-system-version" : "9.0", 8 | "scale" : "1x" 9 | } 10 | ], 11 | "info" : { 12 | "version" : 1, 13 | "author" : "xcode" 14 | } 15 | } -------------------------------------------------------------------------------- /Voucher tvOS App/AuthViewController.swift: -------------------------------------------------------------------------------- 1 | // 2 | // AuthViewController.swift 3 | // Voucher tvOS App 4 | // 5 | // Created by Rizwan Sattar on 11/7/15. 6 | // Copyright © 2015 Rizwan Sattar. All rights reserved. 7 | // 8 | 9 | import UIKit 10 | import Voucher 11 | 12 | class AuthViewController: UIViewController, VoucherClientDelegate { 13 | 14 | var delegate: AuthViewControllerDelegate? 15 | var client: VoucherClient? 16 | 17 | @IBOutlet weak var searchingLabel: UILabel! 18 | @IBOutlet weak var connectionLabel: UILabel! 19 | 20 | deinit { 21 | self.client?.stop() 22 | self.client?.delegate = nil 23 | self.client = nil 24 | } 25 | 26 | override func viewDidLoad() { 27 | super.viewDidLoad() 28 | 29 | let uniqueId = "VoucherTest"; 30 | self.client = VoucherClient(uniqueSharedId: uniqueId) 31 | self.client?.delegate = self 32 | } 33 | 34 | override func viewWillAppear(_ animated: Bool) { 35 | super.viewWillAppear(animated) 36 | 37 | 38 | self.client?.startSearching { [unowned self] (authData, displayName, error) -> Void in 39 | 40 | defer { 41 | self.client?.stop() 42 | } 43 | 44 | guard let authData = authData, let displayName = displayName else { 45 | if let error = error { 46 | NSLog("Encountered error retrieving data: \(error)") 47 | } 48 | self.onNoDataReceived(error as NSError?) 49 | return 50 | } 51 | 52 | self.onAuthDataReceived(authData, responderName: displayName) 53 | 54 | } 55 | } 56 | 57 | override func viewDidDisappear(_ animated: Bool) { 58 | super.viewDidDisappear(animated) 59 | self.client?.stop() 60 | } 61 | 62 | func onNoDataReceived(_ error: NSError?) { 63 | let alert = UIAlertController(title: "Authentication Failed", message: "The iOS App denied our authentication request.", preferredStyle: .alert) 64 | alert.addAction(UIAlertAction(title: "Bummer!", style: .default, handler: { [unowned self] action in 65 | self.delegate?.authController(self, didSucceed: false) 66 | })) 67 | self.present(alert, animated: true, completion: nil) 68 | } 69 | 70 | func onAuthDataReceived(_ authData: Data, responderName:String) { 71 | // Treat the auth data as an string-based auth token 72 | let tokenString = String(data: authData, encoding: String.Encoding.utf8)! 73 | let alert = UIAlertController(title: "Received Auth Data!", message: "Received data, '\(tokenString)' from '\(responderName)'", preferredStyle: .alert) 74 | alert.addAction(UIAlertAction(title: "Awesome!", style: .default, handler: { [unowned self] action in 75 | self.delegate?.authController(self, didSucceed: true) 76 | })) 77 | self.present(alert, animated: true, completion: nil) 78 | } 79 | 80 | override func didReceiveMemoryWarning() { 81 | super.didReceiveMemoryWarning() 82 | // Dispose of any resources that can be recreated. 83 | } 84 | 85 | // MARK: - VoucherClientDelegate 86 | 87 | func voucherClient(_ client: VoucherClient, didUpdateSearching isSearching: Bool) { 88 | if isSearching { 89 | self.searchingLabel.text = "📡 Searching for Voucher Servers..." 90 | } else { 91 | self.searchingLabel.text = "❌ Not Searching." 92 | } 93 | } 94 | 95 | func voucherClient(_ client: VoucherClient, didUpdateConnectionToServer isConnectedToServer: Bool, serverName: String?) { 96 | if isConnectedToServer { 97 | self.connectionLabel.text = "✅ Connected to '\(serverName!)'" 98 | } else { 99 | self.connectionLabel.text = "😴 Not Connected Yet." 100 | } 101 | } 102 | } 103 | 104 | protocol AuthViewControllerDelegate { 105 | func authController(_ controller:AuthViewController, didSucceed succeeded:Bool) 106 | } 107 | 108 | -------------------------------------------------------------------------------- /Voucher tvOS App/Base.lproj/Main.storyboard: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 29 | 38 | 39 | 40 | 41 | 50 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 106 | 107 | 108 | 109 | 116 | 123 | 124 | 125 | 126 | 127 | 128 | 129 | 130 | 131 | 132 | 133 | 134 | 135 | 136 | 137 | 138 | 139 | 140 | 141 | 142 | 143 | 144 | 145 | 146 | 147 | 148 | 149 | -------------------------------------------------------------------------------- /Voucher tvOS App/Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | en 7 | CFBundleExecutable 8 | $(EXECUTABLE_NAME) 9 | CFBundleIdentifier 10 | $(PRODUCT_BUNDLE_IDENTIFIER) 11 | CFBundleInfoDictionaryVersion 12 | 6.0 13 | CFBundleName 14 | $(PRODUCT_NAME) 15 | CFBundlePackageType 16 | APPL 17 | CFBundleShortVersionString 18 | 1.0 19 | CFBundleSignature 20 | ???? 21 | CFBundleVersion 22 | 1 23 | LSRequiresIPhoneOS 24 | 25 | UIMainStoryboardFile 26 | Main 27 | UIRequiredDeviceCapabilities 28 | 29 | arm64 30 | 31 | 32 | 33 | -------------------------------------------------------------------------------- /Voucher tvOS App/RootViewController.swift: -------------------------------------------------------------------------------- 1 | // 2 | // RootViewController.swift 3 | // Voucher 4 | // 5 | // Created by Rizwan Sattar on 11/9/15. 6 | // Copyright © 2015 Rizwan Sattar. All rights reserved. 7 | // 8 | 9 | import UIKit 10 | 11 | class RootViewController: UIViewController, AuthViewControllerDelegate { 12 | 13 | var isAuthenticated: Bool = false { 14 | didSet { 15 | self.authenticationUI.isHidden = self.isAuthenticated 16 | self.clearAuthenticationButton.isHidden = !self.isAuthenticated 17 | if (isAuthenticated) { 18 | self.authenticationLabel.text = "Authenticated!" 19 | } else { 20 | self.authenticationLabel.text = "Not Authenticated" 21 | } 22 | self.view.setNeedsLayout() 23 | } 24 | } 25 | 26 | @IBOutlet weak var authenticationLabel: UILabel! 27 | @IBOutlet weak var clearAuthenticationButton: UIButton! 28 | @IBOutlet weak var authenticationUI: UIView! 29 | 30 | 31 | override func viewDidLoad() { 32 | super.viewDidLoad() 33 | 34 | self.isAuthenticated = false 35 | } 36 | 37 | override func didReceiveMemoryWarning() { 38 | super.didReceiveMemoryWarning() 39 | // Dispose of any resources that can be recreated. 40 | } 41 | 42 | // MARK: - Navigation 43 | 44 | // In a storyboard-based application, you will often want to do a little preparation before navigation 45 | override func prepare(for segue: UIStoryboardSegue, sender: Any?) { 46 | // Get the new view controller using segue.destinationViewController. 47 | // Pass the selected object to the new view controller. 48 | guard let segueIdentifier = segue.identifier else { 49 | return 50 | } 51 | 52 | if segueIdentifier == "showVoucher" { 53 | let viewController = segue.destination as! AuthViewController 54 | viewController.delegate = self 55 | 56 | } 57 | } 58 | 59 | @IBAction func onClearDataTriggered(_ sender: UIButton) { 60 | self.isAuthenticated = false 61 | } 62 | 63 | // MARK: - AuthViewControllerDelegate 64 | func authController(_ controller: AuthViewController, didSucceed succeeded: Bool) { 65 | self.isAuthenticated = succeeded 66 | self.dismiss(animated: true, completion: nil) 67 | } 68 | } 69 | -------------------------------------------------------------------------------- /Voucher.podspec: -------------------------------------------------------------------------------- 1 | Pod::Spec.new do |s| 2 | 3 | s.name = "Voucher" 4 | s.version = "0.2.0" 5 | s.summary = "A simple library to make authenticating tvOS apps easy via their iOS counterparts using Bonjour." 6 | 7 | # This description is used to generate tags and improve search results. 8 | # * Think: What does it do? Why did you write it? What is the focus? 9 | # * Try to keep it short, snappy and to the point. 10 | # * Write the description between the DESC delimiters below. 11 | # * Finally, don't worry about the indent, CocoaPods strips it! 12 | s.description = <<-DESC 13 | Voucher lets the user login easily on a tvOS app, provided they already 14 | have the iOS app. Their iOS app receives a request from the tvOS app, which 15 | they can grant, and the iOS app can send useful authentication data back to 16 | the tvOS app. 17 | 18 | Until Apple "fixes" this issue by creating better login options. This is a nice 19 | option to include in your tvOS and iOS apps, because it makes login painless! 20 | DESC 21 | 22 | s.homepage = "https://github.com/rsattar/Voucher" 23 | # s.screenshots = "www.example.com/screenshots_1.gif", "www.example.com/screenshots_2.gif" 24 | 25 | s.license = { :type => "MIT", :file => "LICENSE" } 26 | 27 | s.author = { "Rizwan Sattar" => "rsattar@gmail.com" } 28 | s.social_media_url = "http://twitter.com/rizzledizzle" 29 | 30 | s.platform = ['ios', 'tvos'] 31 | s.ios.deployment_target = "7.0" 32 | s.tvos.deployment_target = "9.0" 33 | 34 | s.source = { :git => "https://github.com/rsattar/Voucher.git", :tag => s.version.to_s } 35 | 36 | s.source_files = "Voucher", "Voucher/**/*.{h,m}" 37 | 38 | end 39 | -------------------------------------------------------------------------------- /Voucher.xcodeproj/project.pbxproj: -------------------------------------------------------------------------------- 1 | // !$*UTF8*$! 2 | { 3 | archiveVersion = 1; 4 | classes = { 5 | }; 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885 | buildConfigurations = ( 886 | 659AF1ED1BEF1D540031B3A5 /* Debug */, 887 | 659AF1EE1BEF1D540031B3A5 /* Release */, 888 | ); 889 | defaultConfigurationIsVisible = 0; 890 | defaultConfigurationName = Release; 891 | }; 892 | /* End XCConfigurationList section */ 893 | }; 894 | rootObject = 659AF16B1BEEF1510031B3A5 /* Project object */; 895 | } 896 | -------------------------------------------------------------------------------- /Voucher.xcodeproj/project.xcworkspace/contents.xcworkspacedata: -------------------------------------------------------------------------------- 1 | 2 | 4 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /Voucher.xcodeproj/xcshareddata/xcschemes/Voucher iOS.xcscheme: -------------------------------------------------------------------------------- 1 | 2 | 5 | 8 | 9 | 15 | 21 | 22 | 23 | 24 | 25 | 30 | 31 | 33 | 39 | 40 | 41 | 42 | 43 | 49 | 50 | 51 | 52 | 53 | 54 | 64 | 65 | 71 | 72 | 73 | 74 | 75 | 76 | 82 | 83 | 89 | 90 | 91 | 92 | 94 | 95 | 98 | 99 | 100 | -------------------------------------------------------------------------------- /Voucher.xcodeproj/xcshareddata/xcschemes/Voucher tvOS.xcscheme: -------------------------------------------------------------------------------- 1 | 2 | 5 | 8 | 9 | 15 | 21 | 22 | 23 | 24 | 25 | 30 | 31 | 32 | 33 | 34 | 35 | 45 | 46 | 52 | 53 | 54 | 55 | 56 | 57 | 63 | 64 | 70 | 71 | 72 | 73 | 75 | 76 | 79 | 80 | 81 | -------------------------------------------------------------------------------- /Voucher/Client/VoucherClient.h: -------------------------------------------------------------------------------- 1 | // 2 | // VoucherClient.h 3 | // Voucher 4 | // 5 | // Created by Rizwan Sattar on 11/7/15. 6 | // Copyright © 2015 Rizwan Sattar. All rights reserved. 7 | // 8 | 9 | #import 10 | #import "VoucherStreamsController.h" 11 | 12 | @class VoucherClient; 13 | @protocol VoucherClientDelegate 14 | 15 | @optional 16 | - (void)voucherClient:(nonnull VoucherClient *)client didUpdateSearching:(BOOL)isSearching; 17 | - (void)voucherClient:(nonnull VoucherClient *)client didUpdateConnectionToServer:(BOOL)isConnectedToServer serverName:(nullable NSString *)serverName; 18 | 19 | @end 20 | 21 | 22 | typedef void (^VoucherClientCompletionHandler)( NSData * _Nullable authData, NSString * _Nullable responderDisplayName, NSError * _Nullable error); 23 | 24 | @interface VoucherClient : VoucherStreamsController 25 | 26 | @property (weak, nonatomic, nullable) NSObject *delegate; 27 | 28 | @property (readonly, copy, nonatomic, nonnull) NSString *displayName; 29 | @property (readonly, copy, nonatomic, nonnull) NSString *uniqueSharedId; 30 | @property (readonly, assign, nonatomic) BOOL isSearching; 31 | 32 | - (nonnull instancetype)init NS_UNAVAILABLE; 33 | - (nonnull instancetype)initWithUniqueSharedId:(nonnull NSString *)uniqueSharedId displayName:(nullable NSString *)displayName NS_DESIGNATED_INITIALIZER; 34 | - (nonnull instancetype)initWithUniqueSharedId:(nonnull NSString *)uniqueSharedId; 35 | 36 | - (void)startSearchingWithCompletion:(nonnull VoucherClientCompletionHandler)completionHandler; 37 | - (void)stop; 38 | 39 | @end 40 | -------------------------------------------------------------------------------- /Voucher/Client/VoucherClient.m: -------------------------------------------------------------------------------- 1 | // 2 | // VoucherClient.m 3 | // Voucher 4 | // 5 | // Created by Rizwan Sattar on 11/7/15. 6 | // Copyright © 2015 Rizwan Sattar. All rights reserved. 7 | // 8 | 9 | #import "VoucherClient.h" 10 | #import "VoucherCommon.h" 11 | 12 | #import // Just needed for deviceName 13 | 14 | @interface VoucherClient () 15 | 16 | @property (copy, nonatomic) NSString *displayName; 17 | @property (copy, nonatomic) NSString *uniqueSharedId; 18 | @property (assign, nonatomic) BOOL isSearching; 19 | @property (assign, nonatomic) BOOL isConnectedToServer; 20 | 21 | @property (copy, nonatomic) VoucherClientCompletionHandler completionHandler; 22 | 23 | // Browsing 24 | @property (strong, nonatomic) NSNetServiceBrowser *browser; 25 | @property (copy, nonatomic) NSString *serviceName; 26 | @property (strong, nonatomic) NSMutableArray *currentlyAvailableServices; 27 | 28 | @property (strong, nonatomic) NSNetService *server; 29 | 30 | @end 31 | 32 | @implementation VoucherClient 33 | 34 | - (instancetype)initWithUniqueSharedId:(NSString *)uniqueSharedId displayName:(NSString *)displayName 35 | { 36 | self = [super init]; 37 | if (self) { 38 | self.uniqueSharedId = uniqueSharedId; 39 | NSString *appString = [self.uniqueSharedId stringByReplacingOccurrencesOfString:@"." withString:@"_"]; 40 | self.serviceName = [NSString stringWithFormat:kVoucherServiceNameFormat, appString]; 41 | if (displayName.length == 0) { 42 | displayName = [UIDevice currentDevice].name; 43 | } 44 | self.displayName = displayName; 45 | } 46 | return self; 47 | } 48 | 49 | - (instancetype)initWithUniqueSharedId:(NSString *)uniqueSharedId 50 | { 51 | return [self initWithUniqueSharedId:uniqueSharedId displayName:nil]; 52 | } 53 | 54 | - (void)dealloc 55 | { 56 | [self stop]; 57 | } 58 | 59 | - (void)startSearchingWithCompletion:(VoucherClientCompletionHandler)completionHandler 60 | { 61 | if (self.isSearching) { 62 | [self stopSearching]; 63 | } 64 | 65 | self.currentlyAvailableServices = [NSMutableArray arrayWithCapacity:2]; 66 | 67 | self.completionHandler = completionHandler; 68 | 69 | self.browser = [[NSNetServiceBrowser alloc] init]; 70 | self.browser.includesPeerToPeer = YES; 71 | self.browser.delegate = self; 72 | [self.browser searchForServicesOfType:self.serviceName inDomain:@"local"]; 73 | } 74 | 75 | - (void)stop 76 | { 77 | [self disconnectFromServer]; 78 | [self stopSearching]; 79 | self.completionHandler = nil; 80 | } 81 | 82 | - (void)stopSearching 83 | { 84 | [self.currentlyAvailableServices removeAllObjects]; 85 | 86 | [self.browser stop]; 87 | self.browser.delegate = nil; 88 | self.browser = nil; 89 | } 90 | 91 | 92 | #pragma mark - Services 93 | 94 | - (void)connectToAvailableServer 95 | { 96 | if (!self.isConnectedToServer && self.currentlyAvailableServices.count > 0) { 97 | NSNetService *service = self.currentlyAvailableServices[0]; 98 | [self connectToServer:service]; 99 | } else { 100 | NSLog(@"No available server to connect to, yet."); 101 | } 102 | } 103 | 104 | - (void)connectToServer:(NSNetService *)service 105 | { 106 | NSAssert(self.currentlyAvailableServices.count > 0, 107 | @"Tried to select a service when none were available"); 108 | if (service == nil) { 109 | service = self.currentlyAvailableServices[0]; 110 | } 111 | NSAssert([self.currentlyAvailableServices containsObject:service], 112 | @"Tried to select a service which we don't know about"); 113 | 114 | self.server = service; 115 | self.server.delegate = self; 116 | 117 | NSInputStream *inputStream; 118 | NSOutputStream *outputStream; 119 | 120 | BOOL success = [self.server getInputStream:&inputStream outputStream:&outputStream]; 121 | if (success) { 122 | self.isConnectedToServer = YES; 123 | self.inputStream = inputStream; 124 | self.outputStream = outputStream; 125 | 126 | [self openStreams]; 127 | 128 | [self sendAuthRequest]; 129 | } 130 | } 131 | 132 | - (void)disconnectFromServer 133 | { 134 | [self closeStreams]; 135 | self.server.delegate = nil; 136 | self.server = nil; 137 | self.isConnectedToServer = NO; 138 | } 139 | 140 | - (void)handleStreamEnd:(NSStream *)stream 141 | { 142 | // On an unexpected ending of the stream, disconnect 143 | // and try and find the next available server (if any) 144 | [super handleStreamEnd:stream]; 145 | [self disconnectFromServer]; 146 | [self connectToAvailableServer]; 147 | 148 | } 149 | 150 | - (void)sendAuthRequest 151 | { 152 | NSDictionary *requestDict = @{@"displayName" : self.displayName}; 153 | NSData *requestData = [NSKeyedArchiver archivedDataWithRootObject:requestDict]; 154 | [self sendData:requestData]; 155 | } 156 | 157 | 158 | - (void)handleReceivedData:(NSData *)data 159 | { 160 | [super handleReceivedData:data]; 161 | NSDictionary *responseDict = [NSKeyedUnarchiver unarchiveObjectWithData:data]; 162 | NSData *authData = responseDict[@"authData"]; 163 | NSString *responderDisplayName = responseDict[@"displayName"]; 164 | if (self.completionHandler) { 165 | self.completionHandler(authData, responderDisplayName, nil); 166 | } 167 | [self stop]; 168 | } 169 | 170 | #pragma mark - NSNetServiceBrowserDelegate 171 | 172 | /* Sent to the NSNetServiceBrowser instance's delegate before the instance begins a search. The delegate will not receive this message if the instance is unable to begin a search. Instead, the delegate will receive the -netServiceBrowser:didNotSearch: message. 173 | */ 174 | - (void)netServiceBrowserWillSearch:(NSNetServiceBrowser *)browser 175 | { 176 | NSLog(@"Browser will search"); 177 | self.isSearching = YES; 178 | } 179 | 180 | /* Sent to the NSNetServiceBrowser instance's delegate when the instance's previous running search request has stopped. 181 | */ 182 | - (void)netServiceBrowserDidStopSearch:(NSNetServiceBrowser *)browser 183 | { 184 | NSLog(@"Browser did stop search"); 185 | self.isSearching = NO; 186 | } 187 | 188 | /* Sent to the NSNetServiceBrowser instance's delegate when an error in searching for domains or services has occurred. The error dictionary will contain two key/value pairs representing the error domain and code (see the NSNetServicesError enumeration above for error code constants). It is possible for an error to occur after a search has been started successfully. 189 | */ 190 | - (void)netServiceBrowser:(NSNetServiceBrowser *)browser didNotSearch:(NSDictionary *)errorDict 191 | { 192 | NSLog(@"\nBrowser did not search:"); 193 | for (NSString *errorDomain in errorDict) { 194 | NSNumber *errorCode = errorDict[errorDomain]; 195 | NSLog(@" '%@': %@", errorDomain, errorCode); 196 | } 197 | self.isSearching = NO; 198 | } 199 | 200 | /* Sent to the NSNetServiceBrowser instance's delegate for each domain discovered. If there are more domains, moreComing will be YES. If for some reason handling discovered domains requires significant processing, accumulating domains until moreComing is NO and then doing the processing in bulk fashion may be desirable. 201 | */ 202 | - (void)netServiceBrowser:(NSNetServiceBrowser *)browser didFindDomain:(NSString *)domainString moreComing:(BOOL)moreComing 203 | { 204 | NSLog(@"Browser found domain: %@, more coming: %@", domainString, (moreComing ? @"YES" : @"NO")); 205 | } 206 | 207 | /* Sent to the NSNetServiceBrowser instance's delegate for each service discovered. If there are more services, moreComing will be YES. If for some reason handling discovered services requires significant processing, accumulating services until moreComing is NO and then doing the processing in bulk fashion may be desirable. 208 | */ 209 | - (void)netServiceBrowser:(NSNetServiceBrowser *)browser didFindService:(NSNetService *)service moreComing:(BOOL)moreComing 210 | { 211 | NSLog(@"Browser found service: %@, more coming: %@", service.name, (moreComing ? @"YES" : @"NO")); 212 | if (![self.currentlyAvailableServices containsObject:service]) { 213 | [self.currentlyAvailableServices addObject:service]; 214 | } 215 | [self connectToAvailableServer]; 216 | } 217 | 218 | /* Sent to the NSNetServiceBrowser instance's delegate when a previously discovered domain is no longer available. 219 | */ 220 | - (void)netServiceBrowser:(NSNetServiceBrowser *)browser didRemoveDomain:(NSString *)domainString moreComing:(BOOL)moreComing 221 | { 222 | NSLog(@"Browser removed domain: %@, more coming: %@", domainString, (moreComing ? @"YES" : @"NO")); 223 | } 224 | 225 | /* Sent to the NSNetServiceBrowser instance's delegate when a previously discovered service is no longer published. 226 | */ 227 | - (void)netServiceBrowser:(NSNetServiceBrowser *)browser didRemoveService:(NSNetService *)service moreComing:(BOOL)moreComing 228 | { 229 | NSLog(@"Browser removed service: %@, more coming: %@", service.name, (moreComing ? @"YES" : @"NO")); 230 | if ([self.currentlyAvailableServices containsObject:service]) { 231 | [self.currentlyAvailableServices removeObject:service]; 232 | } 233 | if (!moreComing) { 234 | // No more to remove, now check if our server is one of them, and if so, disconnect, and go back to searching 235 | if (self.server && ![self.currentlyAvailableServices containsObject:self.server]) { 236 | [self disconnectFromServer]; 237 | // Connect to next server, if one is available 238 | [self connectToAvailableServer]; 239 | } 240 | } 241 | } 242 | 243 | #pragma mark - Setters 244 | 245 | - (void)setIsSearching:(BOOL)isSearching 246 | { 247 | if (_isSearching == isSearching) { 248 | return; 249 | } 250 | _isSearching = isSearching; 251 | if ([self.delegate respondsToSelector:@selector(voucherClient:didUpdateSearching:)]) { 252 | [self.delegate voucherClient:self didUpdateSearching:_isSearching]; 253 | } 254 | } 255 | 256 | - (void)setIsConnectedToServer:(BOOL)isConnectedToServer 257 | { 258 | if (_isConnectedToServer == isConnectedToServer) { 259 | return; 260 | } 261 | _isConnectedToServer = isConnectedToServer; 262 | if ([self.delegate respondsToSelector:@selector(voucherClient:didUpdateConnectionToServer:serverName:)]) { 263 | [self.delegate voucherClient:self didUpdateConnectionToServer:_isConnectedToServer serverName:self.server.name]; 264 | } 265 | } 266 | 267 | @end 268 | -------------------------------------------------------------------------------- /Voucher/Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | en 7 | CFBundleExecutable 8 | $(EXECUTABLE_NAME) 9 | CFBundleIdentifier 10 | $(PRODUCT_BUNDLE_IDENTIFIER) 11 | CFBundleInfoDictionaryVersion 12 | 6.0 13 | CFBundleName 14 | $(PRODUCT_NAME) 15 | CFBundlePackageType 16 | FMWK 17 | CFBundleShortVersionString 18 | 1.0 19 | CFBundleSignature 20 | ???? 21 | CFBundleVersion 22 | $(CURRENT_PROJECT_VERSION) 23 | NSPrincipalClass 24 | 25 | 26 | 27 | -------------------------------------------------------------------------------- /Voucher/Server/VoucherServer.h: -------------------------------------------------------------------------------- 1 | // 2 | // VoucherServer.h 3 | // Voucher 4 | // 5 | // Created by Rizwan Sattar on 11/7/15. 6 | // Copyright © 2015 Rizwan Sattar. All rights reserved. 7 | // 8 | 9 | #import 10 | #import "VoucherStreamsController.h" 11 | 12 | @class VoucherServer; 13 | @protocol VoucherServerDelegate 14 | 15 | @optional 16 | - (void)voucherServer:(nonnull VoucherServer *)server didUpdateAdvertising:(BOOL)isAdvertising; 17 | - (void)voucherServer:(nonnull VoucherServer *)server didUpdateConnectionToClient:(BOOL)isConnectedToClient; 18 | @end 19 | 20 | 21 | typedef void (^VoucherServerResponseHandler)(NSData * _Nullable authData, NSError * _Nullable error); 22 | typedef void (^VoucherServerRequestHandler)(NSString * _Nonnull displayName, VoucherServerResponseHandler _Nonnull responseHandler); 23 | 24 | @interface VoucherServer : VoucherStreamsController 25 | 26 | @property (weak, nonatomic, nullable) NSObject *delegate; 27 | 28 | @property (readonly, copy, nonatomic, nonnull) NSString *displayName; 29 | @property (readonly, copy, nonatomic, nonnull) NSString *uniqueSharedId; 30 | @property (readonly, assign, nonatomic) BOOL isAdvertising; 31 | @property (readonly, assign, nonatomic) BOOL isConnectedToClient; 32 | 33 | - (nonnull instancetype)init NS_UNAVAILABLE; 34 | - (nonnull instancetype)initWithUniqueSharedId:(nonnull NSString *)uniqueSharedId displayName:(nullable NSString *)displayName NS_DESIGNATED_INITIALIZER; 35 | - (nonnull instancetype)initWithUniqueSharedId:(nonnull NSString *)uniqueSharedId; 36 | 37 | - (void)startAdvertisingWithRequestHandler:(nonnull VoucherServerRequestHandler)requestHandler; 38 | - (void)stop; 39 | 40 | @end 41 | -------------------------------------------------------------------------------- /Voucher/Server/VoucherServer.m: -------------------------------------------------------------------------------- 1 | // 2 | // VoucherServer.m 3 | // Voucher 4 | // 5 | // Created by Rizwan Sattar on 11/7/15. 6 | // Copyright © 2015 Rizwan Sattar. All rights reserved. 7 | // 8 | 9 | #import "VoucherServer.h" 10 | #import "VoucherCommon.h" 11 | 12 | #import // Just needed for deviceName 13 | 14 | @interface VoucherServer () 15 | 16 | @property (copy, nonatomic) NSString *displayName; 17 | @property (copy, nonatomic) NSString *uniqueSharedId; 18 | @property (assign, nonatomic) BOOL isAdvertising; 19 | @property (assign, nonatomic) BOOL shouldBeAdvertising; 20 | @property (assign, nonatomic) BOOL isConnectedToClient; 21 | 22 | // Advertising 23 | @property (copy, nonatomic) VoucherServerRequestHandler requestHandler; 24 | @property (strong, nonatomic) NSNetService *server; 25 | @property (copy, nonatomic) NSString *registeredServerName; 26 | @property (copy, nonatomic) NSString *serviceName; 27 | @end 28 | 29 | @implementation VoucherServer 30 | 31 | - (instancetype)initWithUniqueSharedId:(NSString *)uniqueSharedId displayName:(NSString *)displayName 32 | { 33 | self = [super init]; 34 | if (self) { 35 | self.uniqueSharedId = uniqueSharedId; 36 | NSString *appString = [self.uniqueSharedId stringByReplacingOccurrencesOfString:@"." withString:@"_"]; 37 | self.serviceName = [NSString stringWithFormat:kVoucherServiceNameFormat, appString]; 38 | if (displayName.length == 0) { 39 | displayName = [UIDevice currentDevice].name; 40 | } 41 | self.displayName = displayName; 42 | } 43 | return self; 44 | } 45 | 46 | - (instancetype)initWithUniqueSharedId:(NSString *)uniqueSharedId 47 | { 48 | return [self initWithUniqueSharedId:uniqueSharedId displayName:nil]; 49 | } 50 | 51 | - (void)dealloc 52 | { 53 | [self stop]; 54 | } 55 | 56 | - (void)startAdvertisingWithRequestHandler:(VoucherServerRequestHandler)requestHandler 57 | { 58 | if (self.server != nil) { 59 | [self stopAdvertising]; 60 | } 61 | 62 | self.shouldBeAdvertising = YES; 63 | self.requestHandler = requestHandler; 64 | 65 | self.server = [[NSNetService alloc] initWithDomain:@"local" 66 | type:self.serviceName 67 | name:self.displayName]; 68 | self.server.includesPeerToPeer = YES; 69 | self.server.delegate = self; 70 | [self.server publishWithOptions:NSNetServiceListenForConnections]; 71 | 72 | } 73 | 74 | - (void)stop 75 | { 76 | [self disconnectClient]; 77 | [self stopAdvertising]; 78 | self.requestHandler = nil; 79 | } 80 | 81 | - (void)stopAdvertising 82 | { 83 | self.shouldBeAdvertising = NO; 84 | 85 | if (self.server != nil) { 86 | [self.server stop]; 87 | self.server.delegate = nil; 88 | self.server = nil; 89 | } 90 | self.registeredServerName = nil; 91 | self.isAdvertising = NO; 92 | } 93 | 94 | - (void)disconnectClient 95 | { 96 | [self closeStreams]; 97 | } 98 | 99 | - (void)closeStreams 100 | { 101 | [super closeStreams]; 102 | self.isConnectedToClient = NO; 103 | } 104 | 105 | - (void)openStreams 106 | { 107 | [super openStreams]; 108 | self.isConnectedToClient = YES; 109 | } 110 | 111 | 112 | #pragma mark - Overall Events 113 | 114 | 115 | - (void)handleReceivedData:(NSData *)data 116 | { 117 | // We send/receive information as a NSDictionary written out 118 | // as NSData, so convert from NSData --> NSDictionary 119 | NSDictionary *dict = (NSDictionary *)[NSKeyedUnarchiver unarchiveObjectWithData:data]; 120 | [self handleIncomingRequestDictionary:dict]; 121 | } 122 | 123 | 124 | - (void)handleIncomingRequestDictionary:(NSDictionary *)requestDict 125 | { 126 | NSLog(@"Received request: \n%@", requestDict); 127 | NSString *displayName = requestDict[@"displayName"]; 128 | if (self.requestHandler) { 129 | __weak VoucherServer *_weakSelf = self; 130 | self.requestHandler(displayName, ^(NSData * authData, NSError * error) { 131 | 132 | NSAssert(error == nil, @"Error handling not yet implemented"); 133 | 134 | NSDictionary *responseDict = nil; 135 | if (authData.length) { 136 | // App has granted us some data 137 | responseDict = @{@"authData" : authData, @"displayName" : _weakSelf.displayName}; 138 | } else { 139 | // Don't send back any response data, except our display name 140 | responseDict = @{@"displayName" : _weakSelf.displayName}; 141 | } 142 | NSData *responseData = [NSKeyedArchiver archivedDataWithRootObject:responseDict]; 143 | [_weakSelf sendData:responseData]; 144 | 145 | }); 146 | } 147 | } 148 | 149 | 150 | - (void)handleStreamEnd:(NSStream *)stream 151 | { 152 | [super handleStreamEnd:stream]; 153 | 154 | NSLog(@"Encountered unexpected stream end on VoucherServer, restarting server"); 155 | // An unexpected error occurred here, so 156 | // restart server (is this the right move here?) 157 | [self startAdvertisingWithRequestHandler:self.requestHandler]; 158 | } 159 | 160 | 161 | #pragma mark - NSNetServiceDelegate 162 | 163 | 164 | - (void)netServiceDidPublish:(NSNetService *)sender 165 | { 166 | assert(sender == self.server); 167 | self.isAdvertising = YES; 168 | self.registeredServerName = self.server.name; 169 | NSLog(@"Advertising Voucher Server as: '%@'", self.registeredServerName); 170 | } 171 | 172 | - (void)netService:(NSNetService *)sender didAcceptConnectionWithInputStream:(NSInputStream *)inputStream outputStream:(NSOutputStream *)outputStream 173 | { 174 | // Due to a bug , this method is called on some unspecified 175 | // queue rather than the queue associated with the net service (which in this case 176 | // is the main queue). Work around this by bouncing to the main queue. 177 | [[NSOperationQueue mainQueue] addOperationWithBlock:^{ 178 | assert(sender == self.server); 179 | #pragma unused(sender) 180 | assert(inputStream != nil); 181 | assert(outputStream != nil); 182 | 183 | assert( (self.inputStream != nil) == (self.outputStream != nil) ); // should either have both or neither 184 | 185 | if (self.inputStream != nil) { 186 | // We already have a connection, reject this one 187 | [inputStream open]; 188 | [inputStream close]; 189 | [outputStream open]; 190 | [outputStream close]; 191 | } else { 192 | 193 | // Latch the input and output sterams and kick off an open. 194 | 195 | self.inputStream = inputStream; 196 | self.outputStream = outputStream; 197 | 198 | [self openStreams]; 199 | } 200 | }]; 201 | } 202 | 203 | - (void)netService:(NSNetService *)sender didNotPublish:(NSDictionary *)errorDict 204 | // This is called when the server stops of its own accord. The only reason 205 | // that might happen is if the Bonjour registration fails when we reregister 206 | // the server, and that's hard to trigger because we use auto-rename. I've 207 | // left an assert here so that, if this does happen, we can figure out why it 208 | // happens and then decide how best to handle it. 209 | { 210 | assert(sender == self.server); 211 | self.isAdvertising = NO; 212 | // This will also get called if, while the server is published, the app 213 | // (iOS) goes to the background, then comes back. 214 | // This fails with a NSNetServicesUnknownError (-72000). For Voucher, 215 | // we want to get the server back up and running, if we already thought 216 | // we were 217 | #pragma unused(sender) 218 | NSNetServicesError errorCode = [errorDict[NSNetServicesErrorCode] integerValue]; 219 | NSLog(@"Voucher Server stopped publishing, due to error: %ld", (long)errorCode); 220 | if (errorCode == NSNetServicesUnknownError) { 221 | if (self.shouldBeAdvertising) { 222 | NSLog(@"Restarting Voucher Server..."); 223 | [self startAdvertisingWithRequestHandler:self.requestHandler]; 224 | } 225 | } 226 | } 227 | 228 | 229 | #pragma mark - Setters 230 | 231 | - (void)setIsAdvertising:(BOOL)isAdvertising 232 | { 233 | if (_isAdvertising == isAdvertising) { 234 | return; 235 | } 236 | _isAdvertising = isAdvertising; 237 | if ([self.delegate respondsToSelector:@selector(voucherServer:didUpdateAdvertising:)]) { 238 | [self.delegate voucherServer:self didUpdateAdvertising:_isAdvertising]; 239 | } 240 | } 241 | 242 | - (void)setIsConnectedToClient:(BOOL)isConnectedToClient 243 | { 244 | if (_isConnectedToClient == isConnectedToClient) { 245 | return; 246 | } 247 | _isConnectedToClient = isConnectedToClient; 248 | if ([self.delegate respondsToSelector:@selector(voucherServer:didUpdateConnectionToClient:)]) { 249 | [self.delegate voucherServer:self didUpdateConnectionToClient:_isConnectedToClient]; 250 | } 251 | } 252 | @end 253 | -------------------------------------------------------------------------------- /Voucher/Voucher.h: -------------------------------------------------------------------------------- 1 | // 2 | // Voucher.h 3 | // Voucher 4 | // 5 | // Created by Rizwan Sattar on 11/7/15. 6 | // Copyright © 2015 Rizwan Sattar. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | //! Project version number for Voucher. 12 | FOUNDATION_EXPORT double VoucherVersionNumber; 13 | 14 | //! Project version string for Voucher. 15 | FOUNDATION_EXPORT const unsigned char VoucherVersionString[]; 16 | 17 | // In this header, you should import all the public headers of your framework using statements like #import 18 | 19 | #import 20 | #import 21 | #import 22 | #import 23 | 24 | -------------------------------------------------------------------------------- /Voucher/VoucherCommon.h: -------------------------------------------------------------------------------- 1 | // 2 | // VoucherCommon.h 3 | // Voucher 4 | // 5 | // Created by Rizwan Sattar on 11/7/15. 6 | // Copyright © 2015 Rizwan Sattar. All rights reserved. 7 | // 8 | 9 | #ifndef VoucherCommon_h 10 | #define VoucherCommon_h 11 | #import 12 | 13 | static NSString * kVoucherServiceNameFormat = @"_voucher_%@._tcp."; 14 | 15 | #endif /* VoucherCommon_h */ 16 | -------------------------------------------------------------------------------- /Voucher/VoucherStreamsController.h: -------------------------------------------------------------------------------- 1 | // 2 | // VoucherStreamsController.h 3 | // Voucher 4 | // 5 | // Created by Rizwan Sattar on 11/7/15. 6 | // Copyright © 2015 Rizwan Sattar. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | @interface VoucherStreamsController : NSObject 12 | 13 | @property (strong, nonatomic, nullable) NSInputStream *inputStream; 14 | @property (strong, nonatomic, nullable) NSOutputStream *outputStream; 15 | @property (assign, nonatomic) NSUInteger streamOpenCount; 16 | 17 | - (void)openStreams; 18 | - (void)closeStreams; 19 | 20 | - (void)sendData:(nonnull NSData *)data; 21 | - (void)handleReceivedData:(nonnull NSData *)data; 22 | 23 | - (void)handleStreamEnd:(nonnull NSStream *)stream; 24 | 25 | @end 26 | -------------------------------------------------------------------------------- /Voucher/VoucherStreamsController.m: -------------------------------------------------------------------------------- 1 | // 2 | // VoucherStreamsController.m 3 | // Voucher 4 | // 5 | // Created by Rizwan Sattar on 11/7/15. 6 | // Copyright © 2015 Rizwan Sattar. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | static NSUInteger const BUFFER_SIZE = 1024; 12 | 13 | @interface VoucherStreamsController () 14 | 15 | @property (strong, nonatomic) NSMutableData *dataReadBuffer; 16 | @property (assign, nonatomic) int64_t expectedReadLength; 17 | @property (strong, nonatomic) NSMutableData *dataSendBuffer; 18 | @property (assign, nonatomic) NSUInteger sendBufferByteIndex; 19 | 20 | @end 21 | 22 | @implementation VoucherStreamsController 23 | 24 | 25 | - (void) dealloc 26 | { 27 | [self closeStreams]; 28 | self.dataSendBuffer = nil; 29 | self.dataReadBuffer = nil; 30 | } 31 | 32 | 33 | #pragma mark - Overall Events 34 | 35 | - (void)sendData:(nonnull NSData *)data 36 | { 37 | // TODO(Riz): Queue up multiple sendData: requests, 38 | // so they don't stomp on each other 39 | self.dataSendBuffer = [NSMutableData dataWithCapacity:8+data.length]; 40 | // First, append the length of the data, as a long 41 | uint64_t lengthPreamble = htonll((uint64_t)data.length); 42 | [self.dataSendBuffer appendBytes:&lengthPreamble length:sizeof(lengthPreamble)]; 43 | // Then append the actual data 44 | [self.dataSendBuffer appendData:data]; 45 | self.sendBufferByteIndex = 0; 46 | if (self.outputStream.hasSpaceAvailable) { 47 | [self flushSendDataIfAvailable]; 48 | } 49 | } 50 | 51 | 52 | - (void)handleReceivedData:(nonnull NSData *)data 53 | { 54 | NSLog(@"Received data of length: %lu", (unsigned long) data.length); 55 | } 56 | 57 | 58 | - (void)handleStreamEnd:(NSStream *)stream 59 | { 60 | [self closeStreams]; 61 | } 62 | 63 | 64 | - (void)openStreams 65 | { 66 | // streams must exist but aren't open 67 | assert(self.inputStream != nil); 68 | assert(self.outputStream != nil); 69 | assert(self.streamOpenCount == 0); 70 | 71 | self.inputStream.delegate = self; 72 | [self.inputStream scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode]; 73 | [self.inputStream open]; 74 | 75 | self.outputStream.delegate = self; 76 | [self.outputStream scheduleInRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode]; 77 | [self.outputStream open]; 78 | } 79 | 80 | - (void)closeStreams 81 | { 82 | // should either have both or neither 83 | assert( (self.inputStream != nil) == (self.outputStream != nil) ); 84 | 85 | if (self.inputStream != nil) { 86 | [self.inputStream removeFromRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode]; 87 | [self.inputStream close]; 88 | self.inputStream = nil; 89 | 90 | [self.outputStream removeFromRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode]; 91 | [self.outputStream close]; 92 | self.outputStream = nil; 93 | } 94 | self.streamOpenCount = 0; 95 | } 96 | 97 | - (void)stream:(NSStream *)stream handleEvent:(NSStreamEvent)eventCode 98 | { 99 | 100 | #pragma unused(stream) 101 | 102 | switch(eventCode) { 103 | 104 | case NSStreamEventOpenCompleted: { 105 | self.streamOpenCount += 1; 106 | assert(self.streamOpenCount <= 2); 107 | 108 | if (stream == self.inputStream) { 109 | NSLog(@"Input stream open"); 110 | } else if (stream == self.outputStream) { 111 | NSLog(@"Output stream open"); 112 | } 113 | 114 | if (self.streamOpenCount == 2) { 115 | // Both input and output streams are open, 116 | // Now wait for inputStream to give us the 117 | // client's request (as a NSData(NSDictionary)) 118 | } 119 | } break; 120 | 121 | case NSStreamEventHasSpaceAvailable: { 122 | assert(stream == self.outputStream); 123 | NSLog(@"Output stream has space available"); 124 | [self flushSendDataIfAvailable]; 125 | } break; 126 | 127 | case NSStreamEventHasBytesAvailable: { 128 | if (!self.dataReadBuffer) { 129 | self.dataReadBuffer = [NSMutableData data]; 130 | self.expectedReadLength = -1; 131 | } 132 | 133 | assert(stream == self.inputStream); 134 | 135 | while (self.inputStream.hasBytesAvailable) { 136 | if (self.expectedReadLength < 0) { 137 | // We haven't read anything yet, so just read the length preamble 138 | NSUInteger numPreambleBytes = sizeof(uint64_t); 139 | uint8_t buffer[numPreambleBytes]; 140 | NSInteger bytesRead = [self.inputStream read:buffer maxLength:numPreambleBytes]; 141 | if (bytesRead == numPreambleBytes) { 142 | uint64_t contentLength; 143 | memcpy(&contentLength, buffer, numPreambleBytes); 144 | NTOHLL(contentLength); 145 | self.expectedReadLength = contentLength; 146 | } 147 | } else { 148 | // We already know our expected size, so start or continue reading 149 | 150 | uint8_t buffer[BUFFER_SIZE]; 151 | 152 | NSInteger bytesRead = [self.inputStream read:buffer maxLength:BUFFER_SIZE]; 153 | if (bytesRead < 0) { 154 | NSLog(@"bytesRead: %ld", (long)bytesRead); 155 | // Handle read errors in NSStreamEventErrorOccurred 156 | } else if (bytesRead > 0) { 157 | // We received some data. 158 | NSLog(@"Received %ld bytes", (long)bytesRead); 159 | [self.dataReadBuffer appendBytes:buffer length:bytesRead]; 160 | if (self.dataReadBuffer.length >= self.expectedReadLength) { 161 | NSLog(@"Finished receiving bytes"); 162 | // End of buffer was reached. Do something about it? 163 | [self handleReceivedData:[self.dataReadBuffer copy]]; 164 | self.dataReadBuffer = nil; 165 | self.expectedReadLength = -1; 166 | } 167 | } else { 168 | NSLog(@"Read zero bytes from input stream. The end is nigh"); 169 | } 170 | } 171 | } 172 | } break; 173 | 174 | default: 175 | assert(NO); 176 | // fall through 177 | case NSStreamEventErrorOccurred: 178 | // fall through 179 | NSLog(@"NSStreamErrorOccurred (fallthrough)"); 180 | case NSStreamEventEndEncountered: { 181 | // Start server again? 182 | NSLog(@"NSStreamEventEndEncountered"); 183 | if (stream == self.inputStream) { 184 | NSLog(@" => Input Stream"); 185 | } else if (stream == self.outputStream) { 186 | NSLog(@" => Output Stream"); 187 | } 188 | [self handleStreamEnd:stream]; 189 | } break; 190 | } 191 | } 192 | 193 | 194 | - (void) flushSendDataIfAvailable 195 | { 196 | if (self.dataSendBuffer.length <= 0) { 197 | return; 198 | } 199 | // Send any data in our write buffer 200 | uint8_t *readBytes = (uint8_t *) [self.dataSendBuffer mutableBytes]; 201 | // Move along the byte array up to the sent index 202 | readBytes += self.sendBufferByteIndex; 203 | NSUInteger bytesToWrite = MIN(BUFFER_SIZE, self.dataSendBuffer.length - self.sendBufferByteIndex); 204 | 205 | uint8_t buffer[BUFFER_SIZE]; 206 | // Copy the data we want to send over to this buffer 207 | (void)memcpy(buffer, readBytes, bytesToWrite); 208 | 209 | NSInteger bytesWritten = [self.outputStream write:buffer maxLength:bytesToWrite]; 210 | if (bytesWritten < 0) { 211 | // Some error occurred, yikes. Handle write errors in NSStreamEventErrorOccurred 212 | NSLog(@"Couldn't write to output stream"); 213 | } else { 214 | NSLog(@"Sent %ld bytes", (long) bytesWritten); 215 | self.sendBufferByteIndex += bytesWritten; 216 | 217 | if (self.sendBufferByteIndex == self.dataSendBuffer.length) { 218 | NSLog(@"Finished sending whole data buffer"); 219 | self.dataSendBuffer = nil; 220 | self.sendBufferByteIndex = 0; 221 | } 222 | } 223 | } 224 | 225 | @end 226 | -------------------------------------------------------------------------------- /VoucherTests/Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | en 7 | CFBundleExecutable 8 | $(EXECUTABLE_NAME) 9 | CFBundleIdentifier 10 | $(PRODUCT_BUNDLE_IDENTIFIER) 11 | CFBundleInfoDictionaryVersion 12 | 6.0 13 | CFBundleName 14 | $(PRODUCT_NAME) 15 | CFBundlePackageType 16 | BNDL 17 | CFBundleShortVersionString 18 | 1.0 19 | CFBundleSignature 20 | ???? 21 | CFBundleVersion 22 | 1 23 | 24 | 25 | -------------------------------------------------------------------------------- /VoucherTests/VoucherTests.m: -------------------------------------------------------------------------------- 1 | // 2 | // VoucherTests.m 3 | // VoucherTests 4 | // 5 | // Created by Rizwan Sattar on 11/7/15. 6 | // Copyright © 2015 Rizwan Sattar. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | // Things to test: 12 | // Server: 13 | // - Can publish given good name and unique id 14 | // - cannot publish with invalid name and unique id 15 | // - Can start or resume serving if/after airplane mode 16 | // Client: 17 | // - Can start browsing with good name + id 18 | // - Cannot start browing bad name and/or id 19 | // - Can start or resume browsing if/after airplane mode 20 | // - 21 | // Integration tests of both: 22 | // - Client connects to server, then disconnects after opening streams 23 | // => Server should resume serving, ready to receive connections 24 | // => Client should be able to connect to next server 25 | // - Client connects to server, client sends data, then disconnects while server is waiting for user response 26 | // - Client connects to server, server stops publishing, then resumes publishing 27 | // - Client up first;, then server comes online 28 | // - Server up first, then client comes online 29 | 30 | @interface VoucherTests : XCTestCase 31 | 32 | @end 33 | 34 | @implementation VoucherTests 35 | 36 | - (void)setUp { 37 | [super setUp]; 38 | // Put setup code here. This method is called before the invocation of each test method in the class. 39 | } 40 | 41 | - (void)tearDown { 42 | // Put teardown code here. This method is called after the invocation of each test method in the class. 43 | [super tearDown]; 44 | } 45 | 46 | - (void)testExample { 47 | // This is an example of a functional test case. 48 | // Use XCTAssert and related functions to verify your tests produce the correct results. 49 | } 50 | 51 | - (void)testPerformanceExample { 52 | // This is an example of a performance test case. 53 | [self measureBlock:^{ 54 | // Put the code you want to measure the time of here. 55 | }]; 56 | } 57 | 58 | @end 59 | --------------------------------------------------------------------------------