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300 lines
8.4 KiB
300 lines
8.4 KiB
import 'dart:convert';
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import 'package:Envelope/utils/storage/get_file.dart';
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import 'package:http/http.dart' as http;
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import 'package:pointycastle/export.dart';
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import 'package:sqflite/sqflite.dart';
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import 'package:uuid/uuid.dart';
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import '/database/models/friends.dart';
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import '/database/models/conversation_users.dart';
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import '/database/models/conversations.dart';
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import '/database/models/my_profile.dart';
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import '/exceptions/update_data_exception.dart';
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import '/utils/encryption/aes_helper.dart';
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import '/utils/storage/database.dart';
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import '/utils/storage/session_cookie.dart';
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class _BaseConversationsResult {
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List<Conversation> conversations;
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List<String> detailIds;
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_BaseConversationsResult({
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required this.conversations,
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required this.detailIds,
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});
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}
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class ConversationsService {
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static Future<void> saveConversation(Conversation conversation) async {
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final db = await getDatabaseConnection();
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db.update(
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'conversations',
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conversation.toMap(),
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where: 'id = ?',
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whereArgs: [conversation.id],
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);
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}
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static Future<Conversation> addUsersToConversation(Conversation conversation, List<Friend> friends) async {
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final db = await getDatabaseConnection();
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var uuid = const Uuid();
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for (Friend friend in friends) {
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await db.insert(
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'conversation_users',
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ConversationUser(
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id: uuid.v4(),
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userId: friend.friendId,
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conversationId: conversation.id,
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username: friend.username,
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associationKey: uuid.v4(),
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publicKey: friend.publicKey,
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admin: false,
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).toMap(),
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conflictAlgorithm: ConflictAlgorithm.replace,
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);
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}
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return conversation;
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}
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static Future<void> updateConversation(
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Conversation conversation,
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{
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includeUsers = false,
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updatedImage = false,
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saveConversation = true,
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} ) async {
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if (saveConversation) {
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await saveConversation(conversation);
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}
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String sessionCookie = await getSessionCookie();
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Map<String, dynamic> conversationJson = await conversation.payloadJson(includeUsers: includeUsers);
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var resp = await http.put(
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await MyProfile.getServerUrl('api/v1/auth/conversations'),
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headers: <String, String>{
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'Content-Type': 'application/json; charset=UTF-8',
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'cookie': sessionCookie,
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},
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body: jsonEncode(conversationJson),
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);
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if (resp.statusCode != 204) {
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throw UpdateDataException('Unable to update conversation, please try again later.');
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}
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if (!updatedImage) {
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return;
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}
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Map<String, dynamic> attachmentJson = conversation.payloadImageJson();
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resp = await http.post(
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await MyProfile.getServerUrl('api/v1/auth/conversations/${conversation.id}/image'),
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headers: <String, String>{
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'Content-Type': 'application/json; charset=UTF-8',
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'cookie': sessionCookie,
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},
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body: jsonEncode(attachmentJson),
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);
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if (resp.statusCode != 204) {
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throw UpdateDataException('Unable to update conversation image, please try again later.');
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}
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}
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static Future<_BaseConversationsResult> _getBaseConversations() async {
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RSAPrivateKey privKey = await MyProfile.getPrivateKey();
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http.Response resp = await http.get(
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await MyProfile.getServerUrl('api/v1/auth/conversations'),
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headers: {
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'cookie': await getSessionCookie(),
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}
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);
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if (resp.statusCode != 200) {
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throw Exception(resp.body);
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}
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_BaseConversationsResult result = _BaseConversationsResult(
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conversations: [],
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detailIds: []
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);
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List<dynamic> conversationsJson = jsonDecode(resp.body);
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if (conversationsJson.isEmpty) {
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return result;
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}
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for (var i = 0; i < conversationsJson.length; i++) {
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Conversation conversation = Conversation.fromJson(
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conversationsJson[i] as Map<String, dynamic>,
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privKey,
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);
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result.conversations.add(conversation);
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result.detailIds.add(conversation.id);
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}
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return result;
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}
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static Conversation _findConversationByDetailId(List<Conversation> conversations, String id) {
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for (var conversation in conversations) {
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if (conversation.id == id) {
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return conversation;
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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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static Future<void> _storeConversations(Database db, Conversation conversation, Map<String, dynamic> detailsJson) async {
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conversation.messageExpiryDefault = detailsJson['message_expiry'];
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conversation.twoUser = AesHelper.aesDecrypt(
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base64.decode(conversation.symmetricKey),
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base64.decode(detailsJson['two_user']),
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) == 'true';
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if (conversation.twoUser) {
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MyProfile profile = await MyProfile.getProfile();
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final db = await getDatabaseConnection();
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List<Map<String, dynamic>> maps = await db.query(
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'conversation_users',
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where: 'conversation_id = ? AND user_id != ?',
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whereArgs: [ conversation.id, profile.id ],
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);
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if (maps.length != 1) {
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conversation.name = 'TODO: Fix this';
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} else {
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conversation.name = maps[0]['username'];
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}
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} else {
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conversation.name = AesHelper.aesDecrypt(
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base64.decode(conversation.symmetricKey),
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base64.decode(detailsJson['name']),
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);
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}
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if (detailsJson['attachment_id'] != null) {
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conversation.icon = await getFile(
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'$defaultServerUrl/files/${detailsJson['attachment']['image_link']}',
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conversation.id,
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conversation.symmetricKey,
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).catchError((dynamic) async {});
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}
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await db.insert(
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'conversations',
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conversation.toMap(),
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conflictAlgorithm: ConflictAlgorithm.replace,
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);
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List<dynamic> usersData = detailsJson['users'];
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for (var i = 0; i < usersData.length; i++) {
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ConversationUser conversationUser = ConversationUser.fromJson(
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usersData[i] as Map<String, dynamic>,
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base64.decode(conversation.symmetricKey),
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);
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await db.insert(
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'conversation_users',
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conversationUser.toMap(),
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conflictAlgorithm: ConflictAlgorithm.replace,
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);
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}
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}
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static Future<void> updateConversations({DateTime? updatedAt}) async {
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_BaseConversationsResult baseConvs = await _getBaseConversations();
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if (baseConvs.detailIds.isEmpty) {
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return;
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}
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Map<String, String> params = {};
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if (updatedAt != null) {
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params['updated_at'] = updatedAt.toIso8601String();
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}
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params['conversation_detail_ids'] = baseConvs.detailIds.join(',');
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var uri = await MyProfile.getServerUrl('api/v1/auth/conversation_details');
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uri = uri.replace(queryParameters: params);
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http.Response resp = await http.get(
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uri,
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headers: {
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'cookie': await getSessionCookie(),
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}
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);
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if (resp.statusCode != 200) {
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throw Exception(resp.body);
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}
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final db = await getDatabaseConnection();
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List<dynamic> conversationsDetailsJson = jsonDecode(resp.body);
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for (var i = 0; i < conversationsDetailsJson.length; i++) {
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Map<String, dynamic> detailsJson = conversationsDetailsJson[i] as Map<String, dynamic>;
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Conversation conversation = _findConversationByDetailId(baseConvs.conversations, detailsJson['id']);
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await _storeConversations(db, conversation, detailsJson);
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}
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}
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static Future<void> uploadConversation(Conversation conversation) async {
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String sessionCookie = await getSessionCookie();
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Map<String, dynamic> conversationJson = await conversation.payloadJson();
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var resp = await http.post(
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await MyProfile.getServerUrl('api/v1/auth/conversations'),
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headers: <String, String>{
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'Content-Type': 'application/json; charset=UTF-8',
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'cookie': sessionCookie,
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},
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body: jsonEncode(conversationJson),
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);
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if (resp.statusCode != 204) {
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throw Exception('Failed to create conversation');
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}
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}
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static Future<void> updateMessageExpiry(String id, String messageExpiry) async {
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http.Response resp = await http.post(
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await MyProfile.getServerUrl(
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'api/v1/auth/conversations/$id/message_expiry'
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),
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headers: {
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'cookie': await getSessionCookie(),
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},
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body: jsonEncode({
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'message_expiry': messageExpiry,
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}),
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);
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if (resp.statusCode == 204) {
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return;
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}
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throw Exception('Cannot set message expiry for conversation');
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}
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}
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