我已经按照这里的示例
https://github.com/awslabs/aws-sdk-ios-samples/tree/master/CognitoYourUserPools-Sample
将交互式 Cognito 登录集成到我的 iOS 应用程序中。这一切都运行良好,但是当在池中创建新用户时,他们最初具有 FORCE_CHANGE_PASSWORD 状态。
对于安卓你可以按照下面的步骤
但对于 iOS,我无法找到如何执行此操作。使用示例,如果我尝试使用处于 FORCE_CHANGE_PASSWORD 状态的用户登录,我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):
{"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。
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
执行时,error
为 null,我希望它指示一些东西告诉我们用户需要更改密码。
我的问题实际上是如何捕获输出到控制台的 "ChallengeName":"NEW_PASSWORD_REQUIRED"
json?
最佳答案
现在整理一下。将它张贴在这里以防它对其他人有帮助。
首先,您需要创建一个允许用户指定新密码的 View Controller 。 ViewController 应该有一个 AWSTaskCompletionSource<AWSCognitoIdentityNewPasswordRequiredDetails>
作为属性(property):
var newPasswordCompletion: AWSTaskCompletionSource<AWSCognitoIdentityNewPasswordRequiredDetails>?
按照问题中提到的示例中的模式,我随后实现了 AWSCognitoIdentityNewPasswordRequired
作为 View Controller 的扩展,如下所示:
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)
}
}
}
再次按照问题中详述的示例设计,向 AWSCognitoIdentityInteractiveAuthenticationDelegate
添加一个函数AppDelegate 的扩展:
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!
}
}
关于ios - 在 AWS iOS SDK 中,如何处理 FORCE_CHANGE_PASSWORD 用户状态,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/42764564/