SafariViewController：如何从URL中获取OAuth令牌？ [英] SafariViewController: How to grab OAuth token from URL?

问题描述

尝试使用Facebook的OAuth与SafariViewController。首先，我用SafariViewController打开authURL，如果用户在Safari上登录到Facebook，将重定向它们，并返回一个具有该特定服务的令牌的OAuth URL。 Instagram

Trying to use Facebook OAuth with the SafariViewController. First I open the authURL with SafariViewController, which if the user is logged in to Facebook on Safari, will redirect them and return an OAuth URL with the token for that specific service, e.g. Instagram

回应： https://www.facebook.com/connect/login_success.html#access_token=BLAHTOKENRESPONSE&expires_in=5114338

当SafariViewController重定向到我时想要获取响应URL并存储它，以便我可以获取令牌。这是我的代码：

When SafariViewController has redirected I want to grab the response URL and store it so I can grab the token. Here is my code:

import SafariServices

let kSafariViewControllerCloseNotification = "kSafariViewControllerCloseNotification"

import UIKit

// facebook OAuth URL for service
let authURL = NSURL(string: "https://www.facebook.com/dialog/oauth?client_id=3627644767&redirect_uri=https://www.facebook.com/connect/login_success.html&scope=basic_info,email,public_profile,user_about_me,user_activities,user_birthday,user_education_history,user_friends,user_interests,user_likes,user_location,user_photos,user_relationship_details&response_type=token")

class ViewController: UIViewController, SFSafariViewControllerDelegate {

    var safariVC: SFSafariViewController?
    @IBOutlet weak var loginButton: UIButton!

    @IBAction func loginButtonTapped(sender: UIButton) {
        safariVC = SFSafariViewController(URL: authURL!)
        safariVC!.delegate = self
        self.presentViewController(safariVC!, animated: true, completion: nil)
    }

    override func viewDidLoad() {
        super.viewDidLoad()
        // not firing the safariLogin function below
        NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(ViewController.safariLogin(_:)), name: kSafariViewControllerCloseNotification, object: nil)
    }

    func safariLogin(notification: NSNotification) {
        print("Safari Login call")
        // get the url form the auth callback
        let url = notification.object as! NSURL
        print(url)
        self.safariVC!.dismissViewControllerAnimated(true, completion: nil)
    }

    func application(application: UIApplication, openURL url: NSURL, sourceApplication: String?, annotation: AnyObject) -> Bool {
        print("application call")
        // just making sure we send the notification when the URL is opened in SFSafariViewController
        if (sourceApplication == "com.application.SafariViewTest") {
            NSNotificationCenter.defaultCenter().postNotificationName(kSafariViewControllerCloseNotification, object: url)
            return true
        }
        return true
    }  

}

它打开authURL并重定向到正确的响应URL，但观察者不会触发safariLogin函数抓取URL。任何帮助将不胜感激！

It opens the authURL and redirects to the correct response URL, but the observer does not fire the safariLogin function to grab the URL. Any help would be much appreciated!

非常感谢！

推荐答案

应用程序函数，当它应该在 AppDelagate.swift 中定义时。例如

Figured it out. Some of the methods were pre iOS 9 and now deprecated. I also had the application function in the ViewController I created when it should have been defined in the AppDelagate.swift. For example

在AppDelegate.swift结尾添加

func application(app: UIApplication, openURL url: NSURL, options: [String : AnyObject]) -> Bool {

        print("app: \(app)")
        // print OAuth response URL
        print("url: \(url)")
        print("options: \(options)")

        if let sourceApplication = options["UIApplicationOpenURLOptionsSourceApplicationKey"] {
            if (String(sourceApplication) == "com.testApp.Incognito") {
                NSNotificationCenter.defaultCenter().postNotificationName(kSafariViewControllerCloseNotification, object: url)
                return true
            }
        }
        return true
    }

ViewController.swift

import SafariServices

let kSafariViewControllerCloseNotification = "kSafariViewControllerCloseNotification"

// facebook OAuth URL
let authURL = NSURL(string: "https://www.facebook.com/dialog/oauth?client_id=3627644767&redirect_uri=https://www.facebook.com/connect/login_success.html&scope=basic_info,email,public_profile,user_about_me,user_activities,user_birthday,user_education_history,user_friends,user_interests,user_likes,user_location,user_photos,user_relationship_details&response_type=token")

class ViewController: UIViewController, SFSafariViewControllerDelegate {

    var safariVC: SFSafariViewController?
    @IBOutlet weak var loginButton: UIButton!

    @IBAction func loginButtonTapped(sender: AnyObject) {
        safariVC = SFSafariViewController(URL: authURL!)
        safariVC!.delegate = self
        self.presentViewController(safariVC!, animated: true, completion: nil)
    }

    override func viewDidLoad() {
        super.viewDidLoad()
        NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(ViewController.safariLogin(_:)), name: kSafariViewControllerCloseNotification, object: nil)
    }

    func safariLogin(notification: NSNotification) {
        // get the url from the auth callback
        let url = notification.object as! NSURL
        // Finally dismiss the Safari View Controller with:
        self.safariVC!.dismissViewControllerAnimated(true, completion: nil)
    } 

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
    }

    func safariViewControllerDidFinish(controller: SFSafariViewController) {
        controller.dismissViewControllerAnimated(true) { () -> Void in
            print("You just dismissed the login view.")
        }
    }

    func safariViewController(controller: SFSafariViewController, didCompleteInitialLoad didLoadSuccessfully: Bool) {
        print("didLoadSuccessfully: \(didLoadSuccessfully)")

    }
}

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