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104 lines
3.1 KiB
104 lines
3.1 KiB
import 'dart:convert';
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import "package:pointycastle/export.dart";
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import '/utils/encryption/crypto_utils.dart';
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import '/utils/storage/database.dart';
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Friend findFriendByFriendId(List<Friend> friends, String id) {
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for (var friend in friends) {
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if (friend.friendIdDecrypted == id) {
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return friend;
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}
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}
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// Or return `null`.
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throw ArgumentError.value(id, "id", "No element with that id");
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}
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class Friend{
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String id;
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String userId;
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String? username;
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String friendId;
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String friendIdDecrypted;
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String friendSymmetricKey;
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String friendSymmetricKeyDecrypted;
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String acceptedAt;
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Friend({
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required this.id,
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required this.userId,
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required this.friendId,
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required this.friendIdDecrypted,
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required this.friendSymmetricKey,
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required this.friendSymmetricKeyDecrypted,
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required this.acceptedAt,
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this.username
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});
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factory Friend.fromJson(Map<String, dynamic> json, RSAPrivateKey privKey) {
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// TODO: Remove encrypted entries
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var friendIdDecrypted = CryptoUtils.rsaDecrypt(
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base64.decode(json['friend_id']),
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privKey,
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);
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var friendSymmetricKeyDecrypted = CryptoUtils.rsaDecrypt(
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base64.decode(json['symmetric_key']),
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privKey,
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);
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return Friend(
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id: json['id'],
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userId: json['user_id'],
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friendId: json['friend_id'],
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friendIdDecrypted: String.fromCharCodes(friendIdDecrypted),
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friendSymmetricKey: json['symmetric_key'],
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friendSymmetricKeyDecrypted: base64.encode(friendSymmetricKeyDecrypted),
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acceptedAt: json['accepted_at'],
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);
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}
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@override
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String toString() {
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return '''
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id: $id
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userId: $userId
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username: $username
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friendIdDecrypted: $friendIdDecrypted
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accepted_at: $acceptedAt''';
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}
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Map<String, dynamic> toMap() {
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return {
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'id': id,
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'user_id': userId,
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'username': username,
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'friend_id': friendId,
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'friend_id_decrypted': friendIdDecrypted,
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'symmetric_key': friendSymmetricKey,
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'symmetric_key_decrypted': friendSymmetricKeyDecrypted,
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'accepted_at': acceptedAt,
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};
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}
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}
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// A method that retrieves all the dogs from the dogs table.
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Future<List<Friend>> getFriends() async {
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final db = await getDatabaseConnection();
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final List<Map<String, dynamic>> maps = await db.query('friends');
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return List.generate(maps.length, (i) {
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return Friend(
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id: maps[i]['id'],
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userId: maps[i]['user_id'],
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friendId: maps[i]['friend_id'],
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friendIdDecrypted: maps[i]['friend_id_decrypted'],
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friendSymmetricKey: maps[i]['symmetric_key'],
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friendSymmetricKeyDecrypted: maps[i]['symmetric_key_decrypted'],
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acceptedAt: maps[i]['accepted_at'],
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username: maps[i]['username'],
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);
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});
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}
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