在AWS iOS SDK中，如何处理FORCE_CHANGE_PASSWORD用户状态 [英] In AWS iOS SDK, how do I handle FORCE_CHANGE_PASSWORD User Status
问题描述
我在这里遵循了示例
https://github.com/awslabs/aws-sdk-ios-samples/tree/master/CognitoYourUserPools-Sample
要将交互式认知登录集成到我的iOS应用中。一切正常，但是在池中创建新用户时，他们最初的状态为FORCE_CHANGE_PASSWORD。
To integrate interactive cognito login to my iOS app. This is all working well, but when a new user is created in the pool, they initially have a FORCE_CHANGE_PASSWORD status.
对于android，您可以按照以下步骤操作
For android you can follow the procedure below
但是对于iOS，我无法确定如何执行此操作。使用该示例，如果我尝试以FORCE_CHANGE_PASSWORD状态登录用户，则会在控制台日志中看到以下输出（为简洁起见，删除了一些值）：
But for iOS I can't find out how to do this. Using the sample, if I attempt to login with a user in FORCE_CHANGE_PASSWORD status, I see the following output in the console logs (with some values removed for brevity):
{ ChallengeName： NEW_PASSWORD_REQUIRED， ChallengeParameters：{ requiredAttributes： []， userAttributes： {\ email_verified\：\ true\ ，\ custom：autoconfirm\：\ Y\， Session： xyz}
{"ChallengeName":"NEW_PASSWORD_REQUIRED","ChallengeParameters":{"requiredAttributes":"[]","userAttributes":"{\"email_verified\":\"true\",\"custom:autoconfirm\":\"Y\","Session":"xyz"}
以下是上述示例中SignInViewController的代码。
The following is the code from the SignInViewController from the sample detailed above.
import Foundation
import AWSCognitoIdentityProvider
class SignInViewController: UIViewController {
@IBOutlet weak var username: UITextField!
@IBOutlet weak var password: UITextField!
var passwordAuthenticationCompletion: AWSTaskCompletionSource<AWSCognitoIdentityPasswordAuthenticationDetails>?
var usernameText: String?
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
self.password.text = nil
self.username.text = usernameText
self.navigationController?.setNavigationBarHidden(true, animated: false)
}
@IBAction func signInPressed(_ sender: AnyObject) {
if (self.username.text != nil && self.password.text != nil) {
let authDetails = AWSCognitoIdentityPasswordAuthenticationDetails(username: self.username.text!, password: self.password.text! )
self.passwordAuthenticationCompletion?.set(result: authDetails)
} else {
let alertController = UIAlertController(title: "Missing information",
message: "Please enter a valid user name and password",
preferredStyle: .alert)
let retryAction = UIAlertAction(title: "Retry", style: .default, handler: nil)
alertController.addAction(retryAction)
}
}
}
extension SignInViewController: AWSCognitoIdentityPasswordAuthentication {
public func getDetails(_ authenticationInput: AWSCognitoIdentityPasswordAuthenticationInput, passwordAuthenticationCompletionSource: AWSTaskCompletionSource<AWSCognitoIdentityPasswordAuthenticationDetails>) {
self.passwordAuthenticationCompletion = passwordAuthenticationCompletionSource
DispatchQueue.main.async {
if (self.usernameText == nil) {
self.usernameText = authenticationInput.lastKnownUsername
}
}
}
public func didCompleteStepWithError(_ error: Error?) {
DispatchQueue.main.async {
if let error = error as? NSError {
let alertController = UIAlertController(title: error.userInfo["__type"] as? String,
message: error.userInfo["message"] as? String,
preferredStyle: .alert)
let retryAction = UIAlertAction(title: "Retry", style: .default, handler: nil)
alertController.addAction(retryAction)
self.present(alertController, animated: true, completion: nil)
} else {
self.username.text = nil
self.dismiss(animated: true, completion: nil)
}
}
}
}
当 didCompleteStepWithError 执行，错误为null，我希望它指示某些内容告诉我们用户需要更改密码。
When didCompleteStepWithError executes, error is null where I would expect it to indicate something to tell us that the user is required to change password.
我的问题确实是如何捕获输出到控制台的 ChallengeName： NEW_PASSWORD_REQUIRED json ？
My question is really how to catch the "ChallengeName":"NEW_PASSWORD_REQUIRED" json that is output to the console?
推荐答案
现在对它进行排序。
首先，您需要创建一个视图控制器，该控制器将允许用户指定新密码。 ViewController应该具有 AWSTaskCompletionSource< AWSCognitoIdentityNewPasswordRequiredDetails> 作为属性：
First, you need to create a view controller that will allow the user to specify the new password. The ViewController should have a AWSTaskCompletionSource<AWSCognitoIdentityNewPasswordRequiredDetails> as a property:
var newPasswordCompletion: AWSTaskCompletionSource<AWSCognitoIdentityNewPasswordRequiredDetails>?
按照问题中提到的样本中的模式，然后实施 AWSCognitoIdentityNewPasswordRequired 作为视图控制器的扩展，如下所示：
Following the pattern in the sample referred to in the question, I then implemented AWSCognitoIdentityNewPasswordRequired as an extension to the view controller as follows:
extension NewPasswordRequiredViewController: AWSCognitoIdentityNewPasswordRequired {
func getNewPasswordDetails(_ newPasswordRequiredInput: AWSCognitoIdentityNewPasswordRequiredInput, newPasswordRequiredCompletionSource:
AWSTaskCompletionSource<AWSCognitoIdentityNewPasswordRequiredDetails>) {
self.newPasswordCompletion = newPasswordRequiredCompletionSource
}
func didCompleteNewPasswordStepWithError(_ error: Error?) {
if let error = error as? NSError {
// Handle error
} else {
// Handle success, in my case simply dismiss the view controller
self.dismiss(animated: true, completion: nil)
}
}
}
再次关注问题中详细说明的样本的设计，向AppDelegate的 AWSCognitoIdentityInteractiveAuthenticationDelegate 扩展添加函数：
Again following the design of the sample detailed in the question, add a function to the AWSCognitoIdentityInteractiveAuthenticationDelegate extension to AppDelegate:
extension AppDelegate: AWSCognitoIdentityInteractiveAuthenticationDelegate {
func startPasswordAuthentication() -> AWSCognitoIdentityPasswordAuthentication {
//Existing implementation
}
func startNewPasswordRequired() -> AWSCognitoIdentityNewPasswordRequired {
// Your code to handle how the NewPasswordRequiredViewController is created / presented, the view controller should be returned
return self.newPasswordRequiredViewController!
}
}
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