398 lines
14 KiB
Dart
398 lines
14 KiB
Dart
import 'package:flutter/material.dart';
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import '../views/login/signup_page.dart';
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/* 구글 로그인 */
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import 'package:google_sign_in/google_sign_in.dart';
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import 'package:firebase_auth/firebase_auth.dart';
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/* 애플 로그인 */
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import 'package:sign_in_with_apple/sign_in_with_apple.dart';
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import 'dart:io' show Platform;
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import 'dart:math';
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import 'dart:convert';
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import 'package:crypto/crypto.dart';
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/* 안내 모달창 */
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import 'response_dialog.dart';
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/* 우리의 Api 모듈 */
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import '../plugins/api.dart';
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/* 설정 */
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import '../config/config.dart';
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// 회원가입 방법 선택 모달 위젯
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class SignUpDialog extends StatefulWidget {
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const SignUpDialog({Key? key}) : super(key: key);
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@override
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State<SignUpDialog> createState() => _SignUpDialogState();
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}
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class _SignUpDialogState extends State<SignUpDialog> {
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// 구글 로그인 객체
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final GoogleSignIn _googleSignIn = GoogleSignIn(scopes: <String>['email']);
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// 로딩 상태 관리
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bool _isLoading = false;
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@override
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Widget build(BuildContext context) {
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return Stack(
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children: [
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Dialog(
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backgroundColor: Colors.white,
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(16),
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),
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child: Container(
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padding: const EdgeInsets.all(20),
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width: 300,
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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// 제목
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const Text(
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'Sign Up Method',
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style: TextStyle(
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fontSize: 20,
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fontWeight: FontWeight.bold,
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color: Colors.black,
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),
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),
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const SizedBox(height: 24),
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// 이메일 회원가입 버튼
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SizedBox(
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width: double.infinity,
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child: ElevatedButton(
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style: ElevatedButton.styleFrom(
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backgroundColor: Colors.white,
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foregroundColor: Colors.black,
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side: const BorderSide(color: Colors.black),
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padding: const EdgeInsets.symmetric(vertical: 12),
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(8),
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),
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),
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onPressed: () {
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Navigator.pop(context);
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Navigator.pushAndRemoveUntil(
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context,
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MaterialPageRoute(builder: (_) => const SignUpPage()),
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(route) => false,
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);
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},
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child: const Text(
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'Sign up with Email',
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style: TextStyle(fontSize: 16),
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),
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),
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),
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const SizedBox(height: 12),
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// 구글 회원가입 버튼
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SizedBox(
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width: double.infinity,
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child: ElevatedButton.icon(
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icon: Container(
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width: 24,
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height: 24,
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decoration: const BoxDecoration(
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image: DecorationImage(
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image: AssetImage('assets/images/icons8-google-logo-48.png'),
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fit: BoxFit.contain,
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),
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),
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),
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label: const Text(
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'Sign up with Google',
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style: TextStyle(fontSize: 16),
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),
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style: ElevatedButton.styleFrom(
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backgroundColor: Colors.white,
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foregroundColor: Colors.black,
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side: const BorderSide(color: Colors.black),
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padding: const EdgeInsets.symmetric(vertical: 12),
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(8),
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),
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),
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onPressed: _googleSignUp,
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),
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),
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const SizedBox(height: 12),
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// 애플 회원가입 버튼 - iOS에서만 표시
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if (!Platform.isAndroid)
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SizedBox(
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width: double.infinity,
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child: ElevatedButton.icon(
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icon: const Icon(
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Icons.apple,
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size: 24,
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color: Colors.black,
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),
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label: const Text(
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'Sign up with Apple',
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style: TextStyle(fontSize: 16),
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),
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style: ElevatedButton.styleFrom(
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backgroundColor: Colors.white,
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foregroundColor: Colors.black,
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side: const BorderSide(color: Colors.black),
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padding: const EdgeInsets.symmetric(vertical: 12),
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(8),
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),
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),
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onPressed: () {
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_appleSignUp();
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},
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),
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),
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],
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),
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),
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),
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// 로딩 인디케이터
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if (_isLoading)
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Container(
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color: Colors.black54,
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alignment: Alignment.center,
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child: const CircularProgressIndicator(color: Colors.white),
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),
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],
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);
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}
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// ─────────────────────────────────────────
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// (D3) 구글 회원가입
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// ─────────────────────────────────────────
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Future<void> _googleSignUp() async {
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setState(() => _isLoading = true);
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final agreed = await _showTermsModal();
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if (agreed != true) {
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setState(() => _isLoading = false);
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return;
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}
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try {
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// (2) 구글 계정 선택
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final GoogleSignInAccount? googleUser = await _googleSignIn.signIn();
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if (googleUser == null) {
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// 사용자가 회원가입 창에서 취소
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return;
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}
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// (3) 구글 인증 정보
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final GoogleSignInAuthentication googleAuth = await googleUser.authentication;
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// (4) FirebaseAuth Credential
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final AuthCredential credential = GoogleAuthProvider.credential(
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accessToken: googleAuth.accessToken,
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idToken: googleAuth.idToken,
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);
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// (5) FirebaseAuth로 "회원가입" 시도
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final UserCredential userCredential = await FirebaseAuth.instance.signInWithCredential(credential);
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final User? user = userCredential.user;
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if (user == null) {
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showResponseDialog(context, 'Error' /* 오류 */, 'Google account authentication failed.'
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/* 구글계정 인증에 실패했습니다. */);
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return;
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}
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// (6) idToken 추출 후, 서버에 회원가입 요청
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final idToken = await user.getIdToken();
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final requestBody = {
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'id_token': idToken,
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};
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final response = await Api.serverRequest(uri: '/user/google/signup', body: requestBody);
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if (response['result'] == 'OK') {
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final resp = response['response'] ?? {};
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if (resp['result'] == 'OK') {
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// 회원가입 성공 안내
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showResponseDialog(context, 'Sign-up Complete' /* 회원가입 완료 */, 'Google sign-up has been completed.'
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/* 구글 회원가입이 완료되었습니다. */);
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} else {
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// 실패 시
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final msgTitle = resp['response_info']?['msg_title'] ?? 'Error' /* 오류 */;
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final msgContent = resp['response_info']?['msg_content'] ?? 'Failed to sign up.'
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/* 회원가입에 실패했습니다. */;
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showResponseDialog(context, msgTitle, msgContent);
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}
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} else {
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showResponseDialog(context, 'Error' /* 오류 */, 'Google sign-up request failed.'
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/* 구글 회원가입 요청 실패 */);
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}
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} catch (e) {
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showResponseDialog(context, 'Error' /* 오류 */, 'An error occurred during Google sign-up.\n$e'
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/* 구글 회원가입 중 오류가 발생했습니다.\n$e */);
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} finally {
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setState(() => _isLoading = false);
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}
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}
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// ─────────────────────────────────────────
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// (D4) 애플 회원가입
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// ─────────────────────────────────────────
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Future<void> _appleSignUp() async {
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// 안드로이드 기기 체크
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if (Platform.isAndroid) {
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showResponseDialog(
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context,
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'사용 불가', // 제목
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'애플 회원가입은 안드로이드 기기에서 제공되지 않습니다.', // 내용
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);
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return;
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}
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setState(() => _isLoading = true);
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final agreed = await _showTermsModal();
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if (agreed != true) {
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setState(() => _isLoading = false);
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return;
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}
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try {
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// 1. 애플 로그인 credential 획득
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final rawNonce = generateNonce();
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final nonce = sha256ofString(rawNonce);
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final appleCredential = await SignInWithApple.getAppleIDCredential(
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scopes: [
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AppleIDAuthorizationScopes.email,
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AppleIDAuthorizationScopes.fullName,
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],
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);
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print('appleCredential: $appleCredential');
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// 2. Firebase credential 생성
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final oauthProvider = OAuthProvider('apple.com');
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print('oauthProvider: $oauthProvider');
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final credential = oauthProvider.credential(
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idToken: appleCredential.identityToken,
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accessToken: appleCredential.authorizationCode,
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);
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print('credential: $credential');
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// 3. Firebase 인증
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final userCredential = await FirebaseAuth.instance.signInWithCredential(credential);
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print('userCredential: $userCredential');
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final user = userCredential.user;
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print('user: $user');
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if (user == null) {
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showResponseDialog(context, 'Error', 'Apple account authentication failed.');
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return;
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}
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// 4. 서버에 회원가입 요청
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final idToken = await user.getIdToken();
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final requestBody = {
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'id_token': idToken,
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};
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final response = await Api.serverRequest(uri: '/user/apple/signup', body: requestBody);
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if (response['result'] == 'OK') {
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final resp = response['response'] ?? {};
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if (resp['result'] == 'OK') {
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showResponseDialog(
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context,
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'Sign-up Complete',
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'Apple sign-up has been completed.'
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);
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} else {
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final msgTitle = resp['response_info']?['msg_title'] ?? 'Error';
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final msgContent = resp['response_info']?['msg_content'] ?? 'Failed to sign up.';
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showResponseDialog(context, msgTitle, msgContent);
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}
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} else {
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showResponseDialog(
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context,
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'Error',
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'Apple sign-up request failed.'
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);
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}
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} catch (e) {
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showResponseDialog(
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context,
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'Error',
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'An error occurred during Apple sign-up.\n$e'
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);
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} finally {
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setState(() => _isLoading = false);
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}
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}
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// nonce 생성 유틸리티 함수들 추가
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String generateNonce([int length = 32]) {
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const charset = '0123456789ABCDEFGHIJKLMNOPQRSTUVXYZabcdefghijklmnopqrstuvwxyz-._';
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final random = Random.secure();
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return List.generate(length, (_) => charset[random.nextInt(charset.length)]).join();
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}
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String sha256ofString(String input) {
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final bytes = utf8.encode(input);
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final digest = sha256.convert(bytes);
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return digest.toString();
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}
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// ─────────────────────────────────────────
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// (E) 약관 모달 (개인정보 수집 동의)
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// ─────────────────────────────────────────
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Future<bool?> _showTermsModal() async {
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return showDialog<bool>(
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context: context,
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barrierDismissible: false,
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builder: (ctx) {
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return AlertDialog(
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backgroundColor: Colors.white,
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title: const Text(
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'Privacy Collection and Usage Agreement'
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/* 개인정보 수집 및 이용 동의서 */,
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style: TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
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),
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content: SingleChildScrollView(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: const [
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Text(
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Config.termsOfService,
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style: const TextStyle(fontSize: 14),
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),
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],
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),
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),
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actions: [
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TextButton(
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style: TextButton.styleFrom(
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backgroundColor: Colors.black,
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foregroundColor: Colors.white,
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),
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onPressed: () => Navigator.pop(ctx, false),
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child: Text('Disagree'
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/* 거부 */),
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),
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TextButton(
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style: TextButton.styleFrom(
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backgroundColor: Colors.black,
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foregroundColor: Colors.white,
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),
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onPressed: () => Navigator.pop(ctx, true),
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child: Text('Agree'
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/* 동의 */),
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),
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],
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);
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},
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);
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}
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} |