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124 lines
3.4 KiB
124 lines
3.4 KiB
import 'dart:convert';
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import 'dart:typed_data';
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import 'package:Envelope/models/conversation_users.dart';
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import 'package:Envelope/models/my_profile.dart';
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import 'package:Envelope/models/text_messages.dart';
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import 'package:Envelope/utils/encryption/aes_helper.dart';
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import 'package:Envelope/utils/encryption/crypto_utils.dart';
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import 'package:Envelope/utils/strings.dart';
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import 'package:pointycastle/pointycastle.dart';
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import '/models/conversations.dart';
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import '/utils/storage/database.dart';
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const messageTypeReceiver = 'receiver';
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const messageTypeSender = 'sender';
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Future<List<Message>> getMessagesForThread(Conversation conversation) async {
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final db = await getDatabaseConnection();
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final List<Map<String, dynamic>> maps = await db.rawQuery(
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'''
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SELECT * FROM messages WHERE association_key IN (
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SELECT association_key FROM conversation_users WHERE conversation_id = ?
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)
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ORDER BY created_at DESC;
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''',
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[conversation.id]
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);
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return List.generate(maps.length, (i) {
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return TextMessage(
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id: maps[i]['id'],
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symmetricKey: maps[i]['symmetric_key'],
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userSymmetricKey: maps[i]['user_symmetric_key'],
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text: maps[i]['data'],
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senderId: maps[i]['sender_id'],
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senderUsername: maps[i]['sender_username'],
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associationKey: maps[i]['association_key'],
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createdAt: maps[i]['created_at'],
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failedToSend: maps[i]['failed_to_send'] == 1,
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);
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});
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}
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class Message {
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String id;
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String symmetricKey;
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String userSymmetricKey;
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String senderId;
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String senderUsername;
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String associationKey;
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String createdAt;
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bool failedToSend;
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Message({
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required this.id,
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required this.symmetricKey,
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required this.userSymmetricKey,
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required this.senderId,
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required this.senderUsername,
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required this.associationKey,
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required this.createdAt,
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required this.failedToSend,
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});
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Future<List<Map<String, String>>> payloadJsonBase(
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Uint8List symmetricKey,
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Conversation conversation,
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String messageId,
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String messageDataId,
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) async {
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MyProfile profile = await MyProfile.getProfile();
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if (profile.publicKey == null) {
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throw Exception('Could not get profile.publicKey');
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}
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RSAPublicKey publicKey = profile.publicKey!;
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final userSymmetricKey = AesHelper.deriveKey(generateRandomString(32));
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List<Map<String, String>> messages = [];
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List<ConversationUser> conversationUsers = await getConversationUsers(conversation);
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for (var i = 0; i < conversationUsers.length; i++) {
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ConversationUser user = conversationUsers[i];
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if (profile.id == user.userId) {
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id = user.id;
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messages.add({
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'id': messageId,
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'message_data_id': messageDataId,
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'symmetric_key': base64.encode(CryptoUtils.rsaEncrypt(
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userSymmetricKey,
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publicKey,
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)),
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'association_key': user.associationKey,
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});
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continue;
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}
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ConversationUser conversationUser = await getConversationUser(conversation, user.userId);
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RSAPublicKey friendPublicKey = conversationUser.publicKey;
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messages.add({
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'message_data_id': messageDataId,
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'symmetric_key': base64.encode(CryptoUtils.rsaEncrypt(
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userSymmetricKey,
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friendPublicKey,
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)),
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'association_key': user.associationKey,
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});
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}
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return messages;
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}
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String getContent() {
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return '';
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}
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}
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