MadelineProto/src/danog/MadelineProto/SecretChats/ResponseHandler.php

97 lines
4.8 KiB
PHP

<?php
/**
* ResponseHandler module.
*
* This file is part of MadelineProto.
* MadelineProto is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
* MadelineProto is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Affero General Public License for more details.
* You should have received a copy of the GNU General Public License along with MadelineProto.
* If not, see <http://www.gnu.org/licenses/>.
*
* @author Daniil Gentili <daniil@daniil.it>
* @copyright 2016-2020 Daniil Gentili <daniil@daniil.it>
* @license https://opensource.org/licenses/AGPL-3.0 AGPLv3
*
* @link https://docs.madelineproto.xyz MadelineProto documentation
*/
namespace danog\MadelineProto\SecretChats;
/**
* Manages responses.
*/
trait ResponseHandler
{
private function handleDecryptedUpdate(array $update): \Generator
{
$chatId = $update['message']['chat_id'];
$decryptedMessage = $update['message']['decrypted_message'];
if ($decryptedMessage['_'] === 'decryptedMessage') {
yield from $this->saveUpdate($update);
return;
}
if ($decryptedMessage['_'] === 'decryptedMessageService') {
$action = $decryptedMessage['action'];
switch ($action['_']) {
case 'decryptedMessageActionRequestKey':
yield from $this->acceptRekey($chatId, $action);
return;
case 'decryptedMessageActionAcceptKey':
yield from $this->commitRekey($chatId, $action);
return;
case 'decryptedMessageActionCommitKey':
yield from $this->completeRekey($chatId, $action);
return;
case 'decryptedMessageActionNotifyLayer':
$this->secret_chats[$chatId]['layer'] = $action['layer'];
if ($action['layer'] >= 17 && \time() - $this->secret_chats[$chatId]['created'] > 15) {
yield from $this->notifyLayer($chatId);
}
if ($action['layer'] >= 73) {
$this->secret_chats[$chatId]['mtproto'] = 2;
}
return;
case 'decryptedMessageActionSetMessageTTL':
$this->secret_chats[$chatId]['ttl'] = $action['ttl_seconds'];
yield from $this->saveUpdate($update);
return;
case 'decryptedMessageActionNoop':
return;
case 'decryptedMessageActionResend':
$action['start_seq_no'] -= $this->secret_chats[$chatId]['out_seq_no_x'];
$action['end_seq_no'] -= $this->secret_chats[$chatId]['out_seq_no_x'];
$action['start_seq_no'] /= 2;
$action['end_seq_no'] /= 2;
$this->logger->logger('Resending messages for secret chat '.$chatId, \danog\MadelineProto\Logger::WARNING);
foreach ($this->secret_chats[$chatId]['outgoing'] as $seq => $message) {
if ($seq >= $action['start_seq_no'] && $seq <= $action['end_seq_no']) {
yield from $this->methodCallAsyncRead('messages.sendEncrypted', ['peer' => $chatId, 'message' => $message]);
}
}
return;
default:
yield from $this->saveUpdate($update);
}
return;
}
if ($decryptedMessage['_'] === 'decryptedMessageLayer') {
if ((yield from $this->checkSecretOutSeqNo($chatId, $decryptedMessage['out_seq_no']))
&& (yield from $this->checkSecretInSeqNo($chatId, $decryptedMessage['in_seq_no']))) {
$this->secret_chats[$chatId]['in_seq_no']++;
if ($decryptedMessage['layer'] >= 17 && $decryptedMessage['layer'] !== $this->secret_chats[$chatId]['layer']) {
$this->secret_chats[$chatId]['layer'] = $decryptedMessage['layer'];
if ($decryptedMessage['layer'] >= 17 && \time() - $this->secret_chats[$chatId]['created'] > 15) {
yield from $this->notifyLayer($chatId);
}
}
$update['message']['decrypted_message'] = $decryptedMessage['message'];
yield from $this->handleDecryptedUpdate($update);
}
return;
}
throw new \danog\MadelineProto\ResponseException('Unrecognized decrypted message received: '.\var_export($update, true));
}
}