ios - 将 'IDToken' 替换为 'idToken' Swift Sign in with Apple using Firebase

Question

我正在尝试使用 Firebase 使用 Apple 登录。Firebase 文档说要使用let credential = OAuthProvider.credential(withProviderID: "apple.com", IDToken: idTokenString, rawNonce: nonce)，但是 Xcode 给出了错误并提出了修复建议。

如果我遵循 Xcode 的建议，应用程序会崩溃并显示Invalid state: A login callback was received, but no login request was sent.. 我已经在 Stack Overflow 上看到了与此相关的所有其他问题，但没有一个能解决问题。这是当前版本的 Firebase SDK 的问题还是我的错误。

标签： iosswiftfirebase

Answer 1

试试我的代码，它对我有用

import CryptoKit
import Firebase
import AuthenticationServices

extension SocietyLoginViewController {

    @available(iOS 13, *)
    func appleLogin() {
        let nonce = randomNonceString()
        currentNonce = nonce
        let appleIDProvider = ASAuthorizationAppleIDProvider()
        let request = appleIDProvider.createRequest()
        request.requestedScopes = [.fullName, .email]
        request.nonce = sha256(nonce)
        let authorizationController = ASAuthorizationController(authorizationRequests: [request])
        authorizationController.delegate = self
        authorizationController.presentationContextProvider = self
        authorizationController.performRequests()
    }

    @available(iOS 13, *)
    func sha256(_ input: String) -> String {
        let inputData = Data(input.utf8)
        let hashedData = SHA256.hash(data: inputData)
        let hashString = hashedData.compactMap {
            return String(format: "%02x", $0)
        }.joined()

        return hashString
    }

    // Adapted from https://auth0.com/docs/api-auth/tutorials/nonce#generate-a-cryptographically-random-nonce
    func randomNonceString(length: Int = 32) -> String {
        precondition(length > 0)
        let charset: Array<Character> = Array("0123456789ABCDEFGHIJKLMNOPQRSTUVXYZabcdefghijklmnopqrstuvwxyz-._")
        var result = ""
        var remainingLength = length

        while remainingLength > 0 {
            let randoms: [UInt8] = (0 ..< 16).map { _ in
                var random: UInt8 = 0
                let errorCode = SecRandomCopyBytes(kSecRandomDefault, 1, &random)
                if errorCode != errSecSuccess {
                    fatalError("Unable to generate nonce. SecRandomCopyBytes failed with OSStatus \(errorCode)")
                }
                return random
            }

            randoms.forEach { random in
                if remainingLength == 0 {
                    return
                }

                if random < charset.count {
                    result.append(charset[Int(random)])
                    remainingLength -= 1
                }
            }
        }
        return result
    }
}

@available(iOS 13.0, *)
extension SocietyLoginViewController: ASAuthorizationControllerDelegate , ASAuthorizationControllerPresentationContextProviding {

    func presentationAnchor(for controller: ASAuthorizationController) -> ASPresentationAnchor {
        return self.view.window!
    }

    func authorizationController(controller: ASAuthorizationController, didCompleteWithAuthorization authorization: ASAuthorization) {
        if let appleIDCredential = authorization.credential as? ASAuthorizationAppleIDCredential {
            guard let nonce = currentNonce else {
                fatalError("Invalid state: A login callback was received, but no login request was sent.")
            }
            guard let appleIDToken = appleIDCredential.identityToken else {
                return
            }
            guard let idTokenString = String(data: appleIDToken, encoding: .utf8) else {
                return
            }
            // Initialize a Firebase credential.
            let credential = OAuthProvider.credential(withProviderID: "apple.com", idToken: idTokenString, rawNonce: nonce)
            // Sign in with Firebase.

        }
    }

    func authorizationController(controller: ASAuthorizationController, didCompleteWithError error: Error) {
        // Handle error.
        print("Sign in with Apple errored: \(error)")
   }
}