mirror of
https://github.com/espocrm/espocrm.git
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325 lines
11 KiB
PHP
325 lines
11 KiB
PHP
<?php
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/************************************************************************
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* This file is part of EspoCRM.
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*
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* EspoCRM - Open Source CRM application.
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* Copyright (C) 2014-2019 Yuri Kuznetsov, Taras Machyshyn, Oleksiy Avramenko
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* Website: https://www.espocrm.com
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*
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* EspoCRM is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* EspoCRM is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with EspoCRM. If not, see http://www.gnu.org/licenses/.
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*
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* The interactive user interfaces in modified source and object code versions
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* of this program must display Appropriate Legal Notices, as required under
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* Section 5 of the GNU General Public License version 3.
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*
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* In accordance with Section 7(b) of the GNU General Public License version 3,
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* these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
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************************************************************************/
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namespace Espo\Core\WebSocket;
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use Ratchet\ConnectionInterface;
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use Ratchet\Wamp\WampServerInterface;
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class Pusher implements WampServerInterface
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{
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private $categoryList;
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protected $categoriesData;
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protected $isDebugMode = false;
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protected $connectionIdUserIdMap = [];
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protected $userIdConnectionIdListMap = [];
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protected $connectionIdTopicIdListMap = [];
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protected $connections = [];
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protected $topicHash = [];
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private $phpExecutablePath;
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public function __construct(array $categoriesData = [], ?string $phpExecutablePath = null, bool $isDebugMode = false)
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{
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$this->categoryList = array_keys($categoriesData);
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$this->categoriesData = $categoriesData;
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$this->phpExecutablePath = $phpExecutablePath ?: (new \Symfony\Component\Process\PhpExecutableFinder)->find();
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$this->isDebugMode = $isDebugMode;
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}
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public function onSubscribe(ConnectionInterface $connection, $topic)
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{
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$topicId = $topic->getId();
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if (!$topicId) return;
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if (!$this->isTopicAllowed($topicId)) return;
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$connectionId = $connection->resourceId;
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$userId = $this->getUserIdByConnection($connection);
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if (!$userId) return;
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if (!isset($this->connectionIdTopicIdListMap[$connectionId])) $this->connectionIdTopicIdListMap[$connectionId] = [];
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$checkCommand = $this->getAccessCheckCommandForTopic($connection, $topic);
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if ($checkCommand) {
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$checkResult = shell_exec($checkCommand);
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if ($checkResult !== 'true') {
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if ($this->isDebugMode) echo "check access failed for topic {$topicId} for user {$userId}\n";
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return;
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}
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}
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if (!in_array($topicId, $this->connectionIdTopicIdListMap[$connectionId])) {
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if ($this->isDebugMode) echo "add topic {$topicId} for user {$userId}\n";
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$this->connectionIdTopicIdListMap[$connectionId][] = $topicId;
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}
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$this->topicHash[$topicId] = $topic;
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}
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public function onUnSubscribe(ConnectionInterface $connection, $topic)
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{
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$topicId = $topic->getId();
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if (!$topicId) return;
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if (!$this->isTopicAllowed($topicId)) return;
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$connectionId = $connection->resourceId;
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$userId = $this->getUserIdByConnection($connection);
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if (!$userId) return;
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if (isset($this->connectionIdTopicIdListMap[$connectionId])) {
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$index = array_search($topicId, $this->connectionIdTopicIdListMap[$connectionId]);
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if ($index !== false) {
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if ($this->isDebugMode) echo "remove topic {$topicId} for user {$userId}\n";
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$this->connectionIdTopicIdListMap[$connectionId] = array_splice($this->connectionIdTopicIdListMap[$connectionId], $index, 1);
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}
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}
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}
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protected function getParamsFromTopicId(string $topicId) : array
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{
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$arr = explode('.', $topicId);
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$category = $arr[0];
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$params = [];
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if (array_key_exists('paramList', $this->categoriesData[$category])) {
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foreach ($this->categoriesData[$category]['paramList'] as $i => $item) {
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if (isset($arr[$i + 1])) {
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$params[$item] = $arr[$i + 1];
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} else {
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$params[$item] = '';
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}
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}
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}
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return $params;
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}
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protected function getAccessCheckCommandForTopic(ConnectionInterface $connection, $topic) : ?string
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{
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$topicId = $topic->getId();
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$params = $this->getParamsFromTopicId($topicId);
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$params['userId'] = $this->getUserIdByConnection($connection);
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if (!$params['userId']) {
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$connection->close();
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return null;
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}
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$category = $this->getTopicCategory($topic);
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if (!array_key_exists('accessCheckCommand', $this->categoriesData[$category])) return null;
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$command = $this->phpExecutablePath . " command.php " . $this->categoriesData[$category]['accessCheckCommand'];
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foreach ($params as $key => $value) {
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$command = str_replace(':' . $key, $value, $command);
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}
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return $command;
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}
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protected function getTopicCategory($topic)
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{
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list($category) = explode('.', $topic->getId());
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return $category;
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}
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protected function isTopicAllowed($topicId)
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{
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list($category) = explode('.', $topicId);
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return in_array($category, $this->categoryList);
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}
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protected function getConnectionIdListByUserId($userId)
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{
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if (!isset($this->userIdConnectionIdListMap[$userId])) return [];
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return $this->userIdConnectionIdListMap[$userId];
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}
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protected function getUserIdByConnection(ConnectionInterface $connection)
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{
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if (!isset($this->connectionIdUserIdMap[$connection->resourceId])) return;
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return $this->connectionIdUserIdMap[$connection->resourceId];
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}
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protected function subscribeUser(ConnectionInterface $connection, $userId)
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{
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$resourceId = $connection->resourceId;
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$this->connectionIdUserIdMap[$resourceId] = $userId;
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if (!isset($this->userIdConnectionIdListMap[$userId])) $this->userIdConnectionIdListMap[$userId] = [];
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if (!in_array($resourceId, $this->userIdConnectionIdListMap[$userId])) {
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$this->userIdConnectionIdListMap[$userId][] = $resourceId;
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}
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$this->connections[$resourceId] = $connection;
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if ($this->isDebugMode) echo "{$userId} subscribed\n";
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}
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protected function unsubscribeUser(ConnectionInterface $connection, $userId)
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{
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$resourceId = $connection->resourceId;
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unset($this->connectionIdUserIdMap[$resourceId]);
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if (isset($this->userIdConnectionIdListMap[$userId])) {
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$index = array_search($resourceId, $this->userIdConnectionIdListMap[$userId]);
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if ($index !== false) {
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$this->userIdConnectionIdListMap[$userId] = array_splice($this->userIdConnectionIdListMap[$userId], $index, 1);
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}
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}
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if ($this->isDebugMode) echo "{$userId} unsubscribed\n";
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}
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public function onOpen(ConnectionInterface $connection)
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{
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if ($this->isDebugMode) echo "onOpen {$connection->resourceId}\n";
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$query = $connection->httpRequest->getUri()->getQuery();
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$params = \GuzzleHttp\Psr7\parse_query($query ?: '');
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if (empty($params['userId']) || empty($params['authToken'])) {
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$this->closeConnection($connection);
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return;
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}
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$authToken = preg_replace('/[^a-zA-Z0-9]+/', '', $params['authToken']);
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$userId = $params['userId'];
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$result = $this->getUserIdByAuthToken($authToken);
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if (empty($result)) {
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$this->closeConnection($connection);
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return;
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}
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if ($result !== $userId) {
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$this->closeConnection($connection);
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return;
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}
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$this->subscribeUser($connection, $userId);
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}
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private function getUserIdByAuthToken($authToken)
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{
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return shell_exec($this->phpExecutablePath . " command.php AuthTokenCheck " . $authToken);
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}
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protected function closeConnection(ConnectionInterface $connection)
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{
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$userId = $this->getUserIdByConnection($connection);
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if ($userId) {
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$this->unsubscribeUser($connection, $userId);
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}
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$connection->close();
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}
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public function onClose(ConnectionInterface $connection)
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{
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if ($this->isDebugMode) echo "onClose {$connection->resourceId}\n";
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$userId = $this->getUserIdByConnection($connection);
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if ($userId) {
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$this->unsubscribeUser($connection, $userId);
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}
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unset($this->connections[$connection->resourceId]);
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}
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public function onCall(ConnectionInterface $connection, $id, $topic, array $params)
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{
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$connection->callError($id, $topic, 'You are not allowed to make calls')->close();
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}
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public function onPublish(ConnectionInterface $connection, $topic, $event, array $exclude, array $eligible)
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{
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$topicId = $topic->getId();
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$connection->close();
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}
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public function onError(ConnectionInterface $connection, \Exception $e)
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{
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}
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public function onMessageReceive($dataString)
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{
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$data = json_decode($dataString);
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if (!property_exists($data, 'topicId')) return;
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$userId = $data->userId ?? null;
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$topicId = $data->topicId;
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if (!$topicId) return;
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if (!$this->isTopicAllowed($topicId)) return;
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if ($userId) {
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foreach ($this->getConnectionIdListByUserId($userId) as $connectionId) {
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if (!isset($this->connections[$connectionId])) continue;
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if (!isset($this->connectionIdTopicIdListMap[$connectionId])) continue;
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$connection = $this->connections[$connectionId];
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if (in_array($topicId, $this->connectionIdTopicIdListMap[$connectionId])) {
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if ($this->isDebugMode) echo "send {$topicId} for connection {$connectionId}\n";
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$connection->event($topicId, $data);
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}
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}
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if ($this->isDebugMode) echo "onMessage {$topicId} for {$userId}\n";
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} else {
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$topic = $this->topicHash[$topicId] ?? null;
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if ($topic) {
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$topic->broadcast($data);
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if ($this->isDebugMode) echo "send {$topicId} to all\n";
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}
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if ($this->isDebugMode) echo "onMessage {$topicId} for all\n";
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}
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}
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}
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