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151 lines
4.4 KiB
151 lines
4.4 KiB
import 'dart:io' show Platform;
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import 'dart:convert';
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import 'dart:typed_data';
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import 'package:firebase_messaging/firebase_messaging.dart';
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import 'package:flutter/material.dart';
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import 'package:http/http.dart' as http;
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import 'package:pointycastle/impl.dart';
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import '/components/custom_circle_avatar.dart';
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import '/data_models/user_search.dart';
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import '/database/models/my_profile.dart';
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import '/utils/encryption/aes_helper.dart';
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import '/utils/storage/session_cookie.dart';
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import '/utils/strings.dart';
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import '/utils/encryption/crypto_utils.dart';
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@immutable
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class UserSearchResult extends StatefulWidget {
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final UserSearch user;
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const UserSearchResult({
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Key? key,
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required this.user,
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}) : super(key: key);
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@override
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_UserSearchResultState createState() => _UserSearchResultState();
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}
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class _UserSearchResultState extends State<UserSearchResult>{
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bool showFailed = false;
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@override
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Widget build(BuildContext context) {
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return Center(
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child: Padding(
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padding: const EdgeInsets.only(top: 30),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.center,
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children: <Widget>[
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CustomCircleAvatar(
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initials: widget.user.username[0].toUpperCase(),
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icon: const Icon(Icons.person, size: 80),
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radius: 50,
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),
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const SizedBox(height: 10),
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Text(
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widget.user.username,
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style: const TextStyle(
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fontSize: 35,
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),
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),
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const SizedBox(height: 30),
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TextButton(
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onPressed: sendFriendRequest,
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child: Text(
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'Send Friend Request',
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style: TextStyle(
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color: Theme.of(context).colorScheme.onPrimary,
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fontSize: 20,
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),
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),
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style: ButtonStyle(
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backgroundColor: MaterialStateProperty.all(Theme.of(context).colorScheme.primary),
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padding: MaterialStateProperty.all<EdgeInsets>(
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const EdgeInsets.only(left: 20, right: 20, top: 8, bottom: 8)),
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),
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),
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showFailed ? const SizedBox(height: 20) : const SizedBox.shrink(),
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failedMessage(context),
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],
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),
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),
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);
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}
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Widget failedMessage(BuildContext context) {
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if (!showFailed) {
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return const SizedBox.shrink();
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}
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return Text(
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'Failed to send friend request',
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style: TextStyle(
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color: Theme.of(context).colorScheme.error,
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fontSize: 16,
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),
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);
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}
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Future<void> sendFriendRequest() async {
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MyProfile profile = await MyProfile.getProfile();
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String publicKeyString = CryptoUtils.encodeRSAPublicKeyToPem(profile.publicKey!);
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RSAPublicKey friendPublicKey = CryptoUtils.rsaPublicKeyFromPem(widget.user.publicKey);
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final symmetricKey = AesHelper.deriveKey(generateRandomString(32));
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String? token = await FirebaseMessaging.instance.getToken();
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String payloadJson = jsonEncode({
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'user_id': widget.user.id,
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'friend_id': base64.encode(CryptoUtils.rsaEncrypt(
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Uint8List.fromList(profile.id.codeUnits),
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friendPublicKey,
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)),
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'friend_username': base64.encode(CryptoUtils.rsaEncrypt(
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Uint8List.fromList(profile.username.codeUnits),
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friendPublicKey,
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)),
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'symmetric_key': base64.encode(CryptoUtils.rsaEncrypt(
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Uint8List.fromList(symmetricKey),
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friendPublicKey,
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)),
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'asymmetric_public_key': AesHelper.aesEncrypt(
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symmetricKey,
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Uint8List.fromList(publicKeyString.codeUnits),
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),
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'tokens': token == null ? {} : [{
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'device_token': {
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'device_type': base64.encode(CryptoUtils.rsaEncrypt(
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Uint8List.fromList((Platform.isAndroid ? 'android' : 'ios').codeUnits),
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friendPublicKey,
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)),
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'token': base64.encode(CryptoUtils.rsaEncrypt(
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Uint8List.fromList(token.codeUnits),
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friendPublicKey,
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)),
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}
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}],
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});
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var resp = await http.post(
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await MyProfile.getServerUrl('api/v1/auth/friend_request'),
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headers: {
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'cookie': await getSessionCookie(),
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},
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body: payloadJson,
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);
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if (resp.statusCode != 200) {
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showFailed = true;
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setState(() {});
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return;
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}
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Navigator.pop(context);
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}
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}
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