271 lines
11 KiB
Swift
271 lines
11 KiB
Swift
import SwiftUI
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import AuthenticationServices
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import CryptoKit
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import os.log
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/// 自定义的 Apple 登录按钮组件
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struct AppleSignInButton: View {
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// MARK: - 属性
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/// 授权请求回调
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let onRequest: (ASAuthorizationAppleIDRequest) -> Void
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/// 授权完成回调
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let onCompletion: (Result<ASAuthorization, Error>) -> Void
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/// 按钮文字
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let buttonText: String
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// 创建日志记录器
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private let logger = Logger(subsystem: "com.yourapp", category: "AppleSignInButton")
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// 添加一个强引用到coordinator
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@State private var coordinator: Coordinator?
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// MARK: - 初始化方法
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init(buttonText: String = "Continue with Apple",
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onRequest: @escaping (ASAuthorizationAppleIDRequest) -> Void,
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onCompletion: @escaping (Result<ASAuthorization, Error>) -> Void) {
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self.buttonText = buttonText
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self.onRequest = onRequest
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self.onCompletion = onCompletion
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logger.debug("AppleSignInButton 初始化，按钮文字: \(buttonText)")
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}
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// MARK: - 视图主体
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var body: some View {
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Button(action: handleSignIn) {
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HStack(alignment: .center, spacing: 8) {
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Image(systemName: "applelogo")
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.font(.system(size: 20, weight: .regular))
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Text(buttonText)
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.font(.system(size: 18, weight: .regular))
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}
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.frame(maxWidth: .infinity)
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.frame(height: 60)
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.background(Color.white)
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.foregroundColor(.black)
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.cornerRadius(30)
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.overlay(
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RoundedRectangle(cornerRadius: 30)
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.stroke(Color.black, lineWidth: 1)
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)
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}
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}
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// MARK: - 私有方法
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private func handleSignIn() {
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logger.debug("🍎 用户点击了Apple登录按钮")
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let provider = ASAuthorizationAppleIDProvider()
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let request = provider.createRequest()
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request.requestedScopes = [.fullName, .email]
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// 创建 nonce 用于安全验证
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let nonce = randomNonceString(length: 32)
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logger.debug("🔑 生成Nonce: \(nonce)")
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request.nonce = sha256(nonce)
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logger.debug("🔐 Nonce的SHA256: \(request.nonce ?? "nil")")
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// 调用请求回调
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logger.debug("📞 调用onRequest回调")
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onRequest(request)
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// 创建并显示授权控制器
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logger.debug("🔄 创建ASAuthorizationController")
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let controller = ASAuthorizationController(authorizationRequests: [request])
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// 创建presentation context provider
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let presentationContextProvider = PresentationContextProvider()
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// 创建coordinator并保持强引用
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let newCoordinator = Coordinator(
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onCompletion: { [logger] result in
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// 处理完成后释放coordinator
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DispatchQueue.main.async {
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self.coordinator = nil
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}
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switch result {
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case .success(let auth):
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logger.debug("✅ 授权成功 - 开始处理授权响应")
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if let appleIDCredential = auth.credential as? ASAuthorizationAppleIDCredential {
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let userIdentifier = appleIDCredential.user
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logger.debug("👤 用户标识符: \(userIdentifier)")
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// 保存用户ID用于后续验证
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UserDefaults.standard.set(userIdentifier, forKey: "appleAuthorizedUserIdKey")
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}
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case .failure(let error):
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let nsError = error as NSError
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logger.error("❌ 授权失败: \(nsError.localizedDescription)")
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}
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// 调用完成回调
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self.onCompletion(result)
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},
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logger: logger
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)
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// 保存coordinator的强引用
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self.coordinator = newCoordinator
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// 设置代理和presentation context provider
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controller.delegate = newCoordinator
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controller.presentationContextProvider = presentationContextProvider
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// 执行请求
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logger.debug("🚀 开始执行授权请求...")
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DispatchQueue.main.async {
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controller.performRequests()
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}
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}
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private func logAppleIDError(_ error: ASAuthorizationError, logger: Logger) {
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switch error.code {
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case .canceled:
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logger.error("❌ 用户取消了授权")
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case .failed:
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logger.error("❌ 授权请求失败")
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case .invalidResponse:
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logger.error("❌ 无效的授权响应")
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case .notHandled:
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logger.error("❌ 授权请求未被处理")
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case .unknown:
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logger.error("❌ 未知的授权错误")
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@unknown default:
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logger.error("❌ 未处理的授权错误")
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}
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}
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private func sha256(_ input: String) -> String {
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let inputData = Data(input.utf8)
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let hashedData = SHA256.hash(data: inputData)
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return hashedData.compactMap { String(format: "%02x", $0) }.joined()
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}
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// 使用项目中的现有方法生成随机字符串
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private func randomNonceString(length: Int) -> String {
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let letters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
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return String((0..<length).map{ _ in letters.randomElement()! })
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}
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// MARK: - Coordinator
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private class Coordinator: NSObject, ASAuthorizationControllerDelegate {
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let onCompletion: (Result<ASAuthorization, Error>) -> Void
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private let logger: Logger
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init(onCompletion: @escaping (Result<ASAuthorization, Error>) -> Void, logger: Logger) {
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self.onCompletion = onCompletion
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self.logger = logger
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super.init()
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logger.debug("Coordinator 初始化")
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}
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// 授权成功回调
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func authorizationController(controller: ASAuthorizationController,
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didCompleteWithAuthorization authorization: ASAuthorization) {
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logger.debug("✅ 授权成功 - 开始处理授权响应")
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if let appleIDCredential = authorization.credential as? ASAuthorizationAppleIDCredential {
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// 创建用户标识符
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let userIdentifier = appleIDCredential.user
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logger.debug("👤 用户标识符: \(userIdentifier)")
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// 检查是否是新用户
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if let email = appleIDCredential.email, let fullName = appleIDCredential.fullName {
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logger.debug("👋 检测到新用户")
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logger.debug("📧 新用户邮箱: \(email)")
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logger.debug("👤 新用户全名: \(fullName.givenName ?? "") \(fullName.familyName ?? "")")
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} else {
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logger.debug("👋 现有用户登录")
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}
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// 保存用户标识符到UserDefaults
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UserDefaults.standard.set(userIdentifier, forKey: "appleAuthorizedUserIdKey")
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// 获取授权码
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if let authCodeData = appleIDCredential.authorizationCode,
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let _ = String(data: authCodeData, encoding: .utf8) {
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logger.debug("🔑 成功获取授权码")
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} else {
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logger.warning("⚠️ 未获取到授权码")
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}
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// 获取身份令牌
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if let identityTokenData = appleIDCredential.identityToken,
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let _ = String(data: identityTokenData, encoding: .utf8) {
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logger.debug("🔐 成功获取身份令牌")
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} else {
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logger.error("❌ 获取身份令牌失败")
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}
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} else {
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logger.error("❌ 无法获取有效的 Apple ID 凭证")
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}
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// 调用完成处理程序
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logger.debug("🔄 调用完成处理程序")
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onCompletion(.success(authorization))
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}
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// 授权失败回调
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func authorizationController(controller: ASAuthorizationController,
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didCompleteWithError error: Error) {
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let nsError = error as NSError
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logger.error("❌ 授权失败: \(nsError.localizedDescription)")
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logger.error("错误域: \(nsError.domain), 错误码: \(nsError.code)")
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if let appleIDError = error as? ASAuthorizationError {
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switch appleIDError.code {
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case .canceled:
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logger.error("❌ 用户取消了授权")
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case .failed:
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logger.error("❌ 授权请求失败")
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case .invalidResponse:
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logger.error("❌ 无效的授权响应")
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case .notHandled:
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logger.error("❌ 授权请求未被处理")
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case .unknown:
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logger.error("❌ 未知的授权错误")
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@unknown default:
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logger.error("❌ 未处理的授权错误")
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}
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// 记录更多错误详情
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if let errorString = (appleIDError as NSError).userInfo[NSDebugDescriptionErrorKey] as? String {
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logger.error("🔍 错误详情: \(errorString)")
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}
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}
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// 调用完成处理程序
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logger.debug("🔄 调用完成处理程序（错误）")
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onCompletion(.failure(error))
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}
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}
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// MARK: - Presentation Context Provider
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private class PresentationContextProvider: NSObject, ASAuthorizationControllerPresentationContextProviding {
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private let logger = Logger(subsystem: "com.yourapp.applesignin", category: "PresentationContextProvider")
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override init() {
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super.init()
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logger.debug("PresentationContextProvider 初始化")
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}
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func presentationAnchor(for controller: ASAuthorizationController) -> ASPresentationAnchor {
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logger.debug("获取presentation anchor")
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guard let window = UIApplication.shared.windows.first(where: { $0.isKeyWindow }) else {
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logger.error("无法获取key window，将使用第一个window")
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return UIApplication.shared.windows.first ?? UIWindow()
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}
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return window
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}
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}
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} |