Encrypted messaging app
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import 'dart:convert';
import 'package:http/http.dart' as http;
import 'package:flutter_dotenv/flutter_dotenv.dart';
import 'package:pointycastle/export.dart';
import 'package:sqflite/sqflite.dart';
import '/models/my_profile.dart';
import '/models/conversations.dart';
import '/models/conversation_users.dart';
import '/utils/storage/database.dart';
import '/utils/storage/session_cookie.dart';
import '/utils/encryption/aes_helper.dart';
// TODO: Refactor this function
Future<void> updateConversations() async {
RSAPrivateKey privKey = await MyProfile.getPrivateKey();
// try {
var resp = await http.get(
Uri.parse('${dotenv.env["SERVER_URL"]}api/v1/auth/conversations'),
headers: {
'cookie': await getSessionCookie(),
}
);
if (resp.statusCode != 200) {
throw Exception(resp.body);
}
List<Conversation> conversations = [];
List<String> conversationsDetailIds = [];
List<dynamic> conversationsJson = jsonDecode(resp.body);
for (var i = 0; i < conversationsJson.length; i++) {
Conversation conversation = Conversation.fromJson(
conversationsJson[i] as Map<String, dynamic>,
privKey,
);
conversations.add(conversation);
conversationsDetailIds.add(conversation.conversationDetailId);
}
Map<String, String> params = {};
params['conversation_detail_ids'] = conversationsDetailIds.join(',');
var uri = Uri.parse('${dotenv.env["SERVER_URL"]}api/v1/auth/conversation_details');
uri = uri.replace(queryParameters: params);
resp = await http.get(
uri,
headers: {
'cookie': await getSessionCookie(),
}
);
if (resp.statusCode != 200) {
throw Exception(resp.body);
}
final db = await getDatabaseConnection();
List<dynamic> conversationsDetailsJson = jsonDecode(resp.body);
for (var i = 0; i < conversationsDetailsJson.length; i++) {
var conversationDetailJson = conversationsDetailsJson[i] as Map<String, dynamic>;
var conversation = findConversationByDetailId(conversations, conversationDetailJson['id']);
conversation.name = AesHelper.aesDecrypt(
base64.decode(conversation.symmetricKey),
base64.decode(conversationDetailJson['name']),
);
await db.insert(
'conversations',
conversation.toMap(),
conflictAlgorithm: ConflictAlgorithm.replace,
);
List<dynamic> usersData = json.decode(
AesHelper.aesDecrypt(
base64.decode(conversation.symmetricKey),
base64.decode(conversationDetailJson['users']),
)
);
for (var i = 0; i < usersData.length; i++) {
ConversationUser conversationUser = ConversationUser.fromJson(
usersData[i] as Map<String, dynamic>,
conversation.id,
);
await db.insert(
'conversation_users',
conversationUser.toMap(),
conflictAlgorithm: ConflictAlgorithm.replace,
);
}
}
// } catch (SocketException) {
// return;
// }
}
Future<void> uploadConversation(Conversation conversation) async {
String sessionCookie = await getSessionCookie();
Map<String, dynamic> conversationJson = await conversation.toJson();
var x = await http.post(
Uri.parse('${dotenv.env["SERVER_URL"]}api/v1/auth/conversations'),
headers: <String, String>{
'Content-Type': 'application/json; charset=UTF-8',
'cookie': sessionCookie,
},
body: jsonEncode(conversationJson),
);
print(x.statusCode);
}