335 lines
11 KiB
PHP
335 lines
11 KiB
PHP
<?php
|
|
|
|
require_once __DIR__ . '/init.php';
|
|
|
|
use Appwrite\Database\Pool\PDOPool;
|
|
use Appwrite\Database\Pool\RedisPool;
|
|
use Appwrite\Event\Event;
|
|
use Appwrite\Network\Validator\Origin;
|
|
use Appwrite\Realtime\Realtime;
|
|
use Appwrite\Utopia\Response;
|
|
use Swoole\Http\Request;
|
|
use Swoole\Http\Response as SwooleResponse;
|
|
use Swoole\Process;
|
|
use Swoole\Table;
|
|
use Swoole\Timer;
|
|
use Swoole\WebSocket\Frame;
|
|
use Swoole\WebSocket\Server;
|
|
use Utopia\App;
|
|
use Utopia\CLI\Console;
|
|
use Utopia\Swoole\Request as SwooleRequest;
|
|
use Utopia\Abuse\Abuse;
|
|
use Utopia\Abuse\Adapters\TimeLimit;
|
|
|
|
/**
|
|
* TODO List
|
|
*
|
|
* - JWT Authentication (in path / or in message)
|
|
*
|
|
* Protocols Support:
|
|
* - Websocket support: https://www.swoole.co.uk/docs/modules/swoole-websocket-server
|
|
*/
|
|
|
|
Swoole\Runtime::enableCoroutine(SWOOLE_HOOK_ALL);
|
|
|
|
$server = new Server('0.0.0.0', 80, SWOOLE_PROCESS);
|
|
|
|
$server->set([
|
|
'package_max_length' => 64000 // Default maximum Package Size (64kb)
|
|
]);
|
|
|
|
$subscriptions = [];
|
|
$connections = [];
|
|
|
|
$stats = new Table(4096, 1);
|
|
$stats->column('projectId', Table::TYPE_STRING, 64);
|
|
$stats->column('connections', Table::TYPE_INT);
|
|
$stats->column('connectionsTotal', Table::TYPE_INT);
|
|
$stats->column('messages', Table::TYPE_INT);
|
|
$stats->create();
|
|
|
|
/**
|
|
* Sends usage stats every 10 seconds.
|
|
*/
|
|
Timer::tick(10000, function () use (&$stats) {
|
|
/** @var Table $stats */
|
|
foreach ($stats as $projectId => $value) {
|
|
if (empty($value['connections']) && empty($value['messages'])) {
|
|
continue;
|
|
}
|
|
|
|
$connections = $value['connections'];
|
|
$messages = $value['messages'];
|
|
|
|
$usage = new Event('v1-usage', 'UsageV1');
|
|
$usage
|
|
->setParam('projectId', $projectId)
|
|
->setParam('realtimeConnections', $connections)
|
|
->setParam('realtimeMessages', $messages)
|
|
->setParam('networkRequestSize', 0)
|
|
->setParam('networkResponseSize', 0);
|
|
|
|
$stats->set($projectId, [
|
|
'projectId' => $projectId,
|
|
'messages' => 0,
|
|
'connections' => 0
|
|
]);
|
|
|
|
if (App::getEnv('_APP_USAGE_STATS', 'enabled') == 'enabled') {
|
|
$usage->trigger();
|
|
}
|
|
}
|
|
});
|
|
|
|
$server->on('workerStart', function ($server, $workerId) use (&$subscriptions, &$register, &$stats) {
|
|
Console::success('Worker ' . $workerId . ' started succefully');
|
|
|
|
$attempts = 0;
|
|
$start = time();
|
|
$redisPool = $register->get('redisPool');
|
|
|
|
/**
|
|
* Sending current connections to project channels on the console project every 5 seconds.
|
|
*/
|
|
$server->tick(5000, function () use (&$server, &$subscriptions, &$stats) {
|
|
if (
|
|
array_key_exists('console', $subscriptions)
|
|
&& array_key_exists('role:member', $subscriptions['console'])
|
|
&& array_key_exists('project', $subscriptions['console']['role:member'])
|
|
) {
|
|
$payload = [];
|
|
foreach ($stats as $projectId => $value) {
|
|
$payload[$projectId] = $value['connectionsTotal'];
|
|
}
|
|
foreach ($subscriptions['console']['role:member']['project'] as $connection => $value) {
|
|
foreach ($stats as $projectId => $value) {
|
|
$server->push(
|
|
$connection,
|
|
json_encode([
|
|
'event' => 'stats.connections',
|
|
'channels' => ['project'],
|
|
'timestamp' => time(),
|
|
'payload' => $payload
|
|
]),
|
|
SWOOLE_WEBSOCKET_OPCODE_TEXT,
|
|
SWOOLE_WEBSOCKET_FLAG_FIN | SWOOLE_WEBSOCKET_FLAG_COMPRESS
|
|
);
|
|
}
|
|
}
|
|
}
|
|
});
|
|
|
|
while ($attempts < 300) {
|
|
try {
|
|
if ($attempts > 0) {
|
|
Console::error('Pub/sub connection lost (lasted ' . (time() - $start) . ' seconds, worker: ' . $workerId . ').
|
|
Attempting restart in 5 seconds (attempt #' . $attempts . ')');
|
|
sleep(5); // 5 sec delay between connection attempts
|
|
}
|
|
|
|
/** @var Swoole\Coroutine\Redis $redis */
|
|
$redis = $redisPool->get();
|
|
|
|
if ($redis->ping(true)) {
|
|
$attempts = 0;
|
|
Console::success('Pub/sub connection established (worker: ' . $workerId . ')');
|
|
} else {
|
|
Console::error('Pub/sub failed (worker: ' . $workerId . ')');
|
|
}
|
|
|
|
$redis->subscribe(['realtime'], function ($redis, $channel, $payload) use ($server, $workerId, &$subscriptions, &$stats) {
|
|
/**
|
|
* Supported Resources:
|
|
* - Collection
|
|
* - Document
|
|
* - File
|
|
* - Account
|
|
* - Session
|
|
* - Team? (not implemented yet)
|
|
* - Membership? (not implemented yet)
|
|
* - Function? (not available yet)
|
|
* - Execution? (not available yet)
|
|
*/
|
|
$event = json_decode($payload, true);
|
|
|
|
$receivers = Realtime::identifyReceivers($event, $subscriptions);
|
|
|
|
if (App::isDevelopment() && !empty($receivers)) {
|
|
Console::log("[Debug][Worker {$workerId}] Receivers: " . count($receivers));
|
|
Console::log("[Debug][Worker {$workerId}] Receivers Connection IDs: " . json_encode($receivers));
|
|
Console::log("[Debug][Worker {$workerId}] Event: " . $payload);
|
|
}
|
|
|
|
foreach ($receivers as $receiver) {
|
|
if ($server->exist($receiver) && $server->isEstablished($receiver)) {
|
|
$server->push(
|
|
$receiver,
|
|
json_encode($event['data']),
|
|
SWOOLE_WEBSOCKET_OPCODE_TEXT,
|
|
SWOOLE_WEBSOCKET_FLAG_FIN | SWOOLE_WEBSOCKET_FLAG_COMPRESS
|
|
);
|
|
} else {
|
|
$server->close($receiver);
|
|
}
|
|
}
|
|
if (($num = count($receivers)) > 0) {
|
|
$stats->incr($event['project'], 'messages', $num);
|
|
}
|
|
});
|
|
} catch (\Throwable $th) {
|
|
Console::error('Pub/sub error: ' . $th->getMessage());
|
|
$redisPool->put($redis);
|
|
$attempts++;
|
|
continue;
|
|
}
|
|
|
|
$attempts++;
|
|
}
|
|
|
|
Console::error('Failed to restart pub/sub...');
|
|
});
|
|
|
|
$server->on('start', function (Server $server) {
|
|
Console::success('Server started succefully');
|
|
|
|
Console::info("Master pid {$server->master_pid}, manager pid {$server->manager_pid}");
|
|
|
|
// listen ctrl + c
|
|
Process::signal(2, function () use ($server) {
|
|
Console::log('Stop by Ctrl+C');
|
|
$server->shutdown();
|
|
});
|
|
});
|
|
|
|
$server->on('open', function (Server $server, Request $request) use (&$connections, &$subscriptions, &$register, &$stats) {
|
|
$app = new App('UTC');
|
|
$connection = $request->fd;
|
|
$request = new SwooleRequest($request);
|
|
|
|
$db = $register->get('dbPool')->get();
|
|
$redis = $register->get('redisPool')->get();
|
|
|
|
$register->set('db', function () use (&$db) {
|
|
return $db;
|
|
});
|
|
|
|
$register->set('cache', function () use (&$redis) { // Register cache connection
|
|
return $redis;
|
|
});
|
|
|
|
Console::info("Connection open (user: {$connection}, worker: {$server->getWorkerId()})");
|
|
|
|
App::setResource('request', function () use ($request) {
|
|
return $request;
|
|
});
|
|
|
|
App::setResource('response', function () {
|
|
return new Response(new SwooleResponse());
|
|
});
|
|
|
|
try {
|
|
/** @var Appwrite\Database\Document $user */
|
|
$user = $app->getResource('user');
|
|
|
|
/** @var Appwrite\Database\Document $project */
|
|
$project = $app->getResource('project');
|
|
|
|
/** @var Appwrite\Database\Document $console */
|
|
$console = $app->getResource('console');
|
|
|
|
/*
|
|
* Project Check
|
|
*/
|
|
if (empty($project->getId())) {
|
|
throw new Exception('Missing or unknown project ID', 1008);
|
|
}
|
|
|
|
/*
|
|
* Abuse Check
|
|
*
|
|
* Abuse limits are connecting 128 times per minute and ip address.
|
|
*/
|
|
$timeLimit = new TimeLimit('url:{url},ip:{ip}', 128, 60, function () use ($db) {
|
|
return $db;
|
|
});
|
|
$timeLimit
|
|
->setNamespace('app_' . $project->getId())
|
|
->setParam('{ip}', $request->getIP())
|
|
->setParam('{url}', $request->getURI());
|
|
|
|
$abuse = new Abuse($timeLimit);
|
|
|
|
if ($abuse->check() && App::getEnv('_APP_OPTIONS_ABUSE', 'enabled') === 'enabled') {
|
|
throw new Exception('Too many requests', 1013);
|
|
}
|
|
|
|
/*
|
|
* Validate Client Domain - Check to avoid CSRF attack.
|
|
* Adding Appwrite API domains to allow XDOMAIN communication.
|
|
* Skip this check for non-web platforms which are not required to send an origin header.
|
|
*/
|
|
$origin = $request->getOrigin();
|
|
$originValidator = new Origin(\array_merge($project->getAttribute('platforms', []), $console->getAttribute('platforms', [])));
|
|
|
|
if (!$originValidator->isValid($origin) && $project->getId() !== 'console') {
|
|
throw new Exception($originValidator->getDescription(), 1008);
|
|
}
|
|
|
|
Realtime::setUser($user);
|
|
|
|
$roles = Realtime::getRoles();
|
|
$channels = Realtime::parseChannels($request->getQuery('channels', []));
|
|
|
|
/**
|
|
* Channels Check
|
|
*/
|
|
if (empty($channels)) {
|
|
throw new Exception('Missing channels', 1008);
|
|
}
|
|
|
|
Realtime::subscribe($project->getId(), $connection, $roles, $subscriptions, $connections, $channels);
|
|
|
|
$server->push($connection, json_encode($channels));
|
|
|
|
$stats->incr($project->getId(), 'connections');
|
|
$stats->incr($project->getId(), 'connectionsTotal');
|
|
} catch (\Throwable $th) {
|
|
$response = [
|
|
'code' => $th->getCode(),
|
|
'message' => $th->getMessage()
|
|
];
|
|
if (App::isDevelopment()) {
|
|
Console::error("[Error] Connection Error");
|
|
Console::error("[Error] Code: " . $response['code']);
|
|
Console::error("[Error] Message: " . $response['message']);
|
|
}
|
|
$server->push($connection, json_encode($response));
|
|
$server->close($connection);
|
|
}
|
|
/**
|
|
* Put used PDO and Redis Connections back into their pools.
|
|
*/
|
|
/** @var PDOPool $dbPool */
|
|
$dbPool = $register->get('dbPool');
|
|
$dbPool->put($db);
|
|
|
|
/** @var RedisPool $redisPool */
|
|
$redisPool = $register->get('redisPool');
|
|
$redisPool->put($redis);
|
|
});
|
|
|
|
$server->on('message', function (Server $server, Frame $frame) {
|
|
$server->push($frame->fd, 'Sending messages is not allowed.');
|
|
$server->close($frame->fd);
|
|
});
|
|
|
|
$server->on('close', function (Server $server, int $connection) use (&$connections, &$subscriptions, &$stats) {
|
|
if (array_key_exists($connection, $connections)) {
|
|
$stats->decr($connections[$connection]['projectId'], 'connectionsTotal');
|
|
}
|
|
Realtime::unsubscribe($connection, $subscriptions, $connections);
|
|
Console::info('Connection close: ' . $connection);
|
|
});
|
|
|
|
$server->start();
|