386 lines
14 KiB
PHP
386 lines
14 KiB
PHP
<?php
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use Appwrite\Event\Event;
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use Appwrite\Event\Func;
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use Appwrite\Messaging\Adapter\Realtime;
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use Appwrite\Resque\Worker;
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use Appwrite\Usage\Stats;
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use Appwrite\Utopia\Response\Model\Execution;
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use Cron\CronExpression;
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use Executor\Executor;
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use Utopia\App;
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use Utopia\CLI\Console;
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use Utopia\Config\Config;
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use Utopia\Database\Database;
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use Utopia\Database\DateTime;
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use Utopia\Database\Document;
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use Utopia\Database\ID;
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use Utopia\Database\Permission;
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use Utopia\Database\Query;
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use Utopia\Database\Role;
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require_once __DIR__ . '/../init.php';
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Console::title('Functions V1 Worker');
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Console::success(APP_NAME . ' functions worker v1 has started');
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class FunctionsV1 extends Worker
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{
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private ?Executor $executor = null;
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public array $args = [];
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public array $allowed = [];
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public function getName(): string
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{
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return "functions";
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}
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public function init(): void
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{
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$this->executor = new Executor(App::getEnv('_APP_EXECUTOR_HOST'));
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}
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public function run(): void
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{
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$type = $this->args['type'] ?? '';
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$events = $this->args['events'] ?? [];
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$project = new Document($this->args['project'] ?? []);
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$user = new Document($this->args['user'] ?? []);
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$payload = json_encode($this->args['payload'] ?? []);
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if ($project->getId() === 'console') {
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return;
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}
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$database = $this->getProjectDB($project->getId());
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/**
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* Handle Event execution.
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*/
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if (!empty($events)) {
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$limit = 30;
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$sum = 30;
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$offset = 0;
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$functions = [];
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/** @var Document[] $functions */
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while ($sum >= $limit) {
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$functions = $database->find('functions', [
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Query::limit($limit),
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Query::offset($offset),
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Query::orderAsc('name'),
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]);
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$sum = \count($functions);
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$offset = $offset + $limit;
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Console::log('Fetched ' . $sum . ' functions...');
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foreach ($functions as $function) {
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if (!array_intersect($events, $function->getAttribute('events', []))) {
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continue;
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}
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Console::success('Iterating function: ' . $function->getAttribute('name'));
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$this->execute(
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project: $project,
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function: $function,
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dbForProject: $database,
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trigger: 'event',
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// Pass first, most verbose event pattern
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event: $events[0],
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eventData: $payload,
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user: $user
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);
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Console::success('Triggered function: ' . $events[0]);
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}
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}
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return;
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}
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/**
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* Handle Schedule and HTTP execution.
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*/
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$user = new Document($this->args['user'] ?? []);
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$project = new Document($this->args['project'] ?? []);
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$execution = new Document($this->args['execution'] ?? []);
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$function = new Document($this->args['function'] ?? []);
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switch ($type) {
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case 'http':
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$jwt = $this->args['jwt'] ?? '';
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$data = $this->args['data'] ?? '';
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$function = $database->getDocument('functions', $execution->getAttribute('functionId'));
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$this->execute(
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project: $project,
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function: $function,
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dbForProject: $database,
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executionId: $execution->getId(),
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trigger: 'http',
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data: $data,
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user: $user,
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jwt: $jwt
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);
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break;
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case 'schedule':
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$functionOriginal = $function;
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/*
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* 1. Get Original Task
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* 2. Check for updates
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* If has updates skip task and don't reschedule
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* If status not equal to play skip task
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* 3. Check next run date, update task and add new job at the given date
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* 4. Execute task (set optional timeout)
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* 5. Update task response to log
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* On success reset error count
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* On failure add error count
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* If error count bigger than allowed change status to pause
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*/
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// Reschedule
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$function = $database->getDocument('functions', $function->getId());
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if (empty($function->getId())) {
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throw new Exception('Function not found (' . $function->getId() . ')');
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}
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if ($functionOriginal->getAttribute('schedule') !== $function->getAttribute('schedule')) { // Schedule has changed from previous run, ignore this run.
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return;
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}
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if ($functionOriginal->getAttribute('scheduleUpdatedAt') !== $function->getAttribute('scheduleUpdatedAt')) { // Double execution due to rapid cron changes, ignore this run.
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return;
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}
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$cron = new CronExpression($function->getAttribute('schedule'));
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$next = DateTime::format($cron->getNextRunDate());
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$function = $function
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->setAttribute('scheduleNext', $next)
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->setAttribute('schedulePrevious', DateTime::now());
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$function = $database->updateDocument(
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'functions',
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$function->getId(),
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$function
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);
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$reschedule = new Func();
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$reschedule
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->setFunction($function)
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->setType('schedule')
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->setUser($user)
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->setProject($project)
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->schedule(new \DateTime($next));
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;
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$this->execute(
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project: $project,
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function: $function,
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dbForProject: $database,
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trigger: 'schedule'
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);
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break;
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}
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}
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private function execute(
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Document $project,
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Document $function,
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Database $dbForProject,
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string $trigger,
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string $executionId = null,
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string $event = null,
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string $eventData = null,
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string $data = null,
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?Document $user = null,
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string $jwt = null
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) {
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$user ??= new Document();
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$functionId = $function->getId();
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$deploymentId = $function->getAttribute('deployment', '');
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/** Check if deployment exists */
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$deployment = $dbForProject->getDocument('deployments', $deploymentId);
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if ($deployment->getAttribute('resourceId') !== $functionId) {
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throw new Exception('Deployment not found. Create deployment before trying to execute a function', 404);
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}
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if ($deployment->isEmpty()) {
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throw new Exception('Deployment not found. Create deployment before trying to execute a function', 404);
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}
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/** Check if build has exists */
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$build = $dbForProject->getDocument('builds', $deployment->getAttribute('buildId', ''));
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if ($build->isEmpty()) {
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throw new Exception('Build not found', 404);
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}
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if ($build->getAttribute('status') !== 'ready') {
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throw new Exception('Build not ready', 400);
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}
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/** Check if runtime is supported */
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$runtimes = Config::getParam('runtimes', []);
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if (!\array_key_exists($function->getAttribute('runtime'), $runtimes)) {
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throw new Exception('Runtime "' . $function->getAttribute('runtime', '') . '" is not supported', 400);
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}
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$runtime = $runtimes[$function->getAttribute('runtime')];
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/** Create execution or update execution status */
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$execution = $dbForProject->getDocument('executions', $executionId ?? '');
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if ($execution->isEmpty()) {
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$executionId = ID::unique();
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$execution = $dbForProject->createDocument('executions', new Document([
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'$id' => $executionId,
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'$permissions' => $user->isEmpty() ? [] : [Permission::read(Role::user($user->getId()))],
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'functionId' => $functionId,
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'deploymentId' => $deploymentId,
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'trigger' => $trigger,
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'status' => 'waiting',
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'statusCode' => 0,
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'response' => '',
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'stderr' => '',
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'duration' => 0.0,
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'search' => implode(' ', [$functionId, $executionId]),
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]));
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if ($execution->isEmpty()) {
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throw new Exception('Failed to create or read execution');
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}
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}
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$execution->setAttribute('status', 'processing');
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$execution = $dbForProject->updateDocument('executions', $executionId, $execution);
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$vars = array_reduce($function['vars'] ?? [], function (array $carry, Document $var) {
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$carry[$var->getAttribute('key')] = $var->getAttribute('value');
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return $carry;
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}, []);
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/** Collect environment variables */
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$vars = \array_merge($vars, [
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'APPWRITE_FUNCTION_ID' => $functionId,
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'APPWRITE_FUNCTION_NAME' => $function->getAttribute('name'),
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'APPWRITE_FUNCTION_DEPLOYMENT' => $deploymentId,
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'APPWRITE_FUNCTION_TRIGGER' => $trigger,
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'APPWRITE_FUNCTION_PROJECT_ID' => $project->getId(),
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'APPWRITE_FUNCTION_RUNTIME_NAME' => $runtime['name'] ?? '',
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'APPWRITE_FUNCTION_RUNTIME_VERSION' => $runtime['version'] ?? '',
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'APPWRITE_FUNCTION_EVENT' => $event ?? '',
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'APPWRITE_FUNCTION_EVENT_DATA' => $eventData ?? '',
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'APPWRITE_FUNCTION_DATA' => $data ?? '',
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'APPWRITE_FUNCTION_USER_ID' => $user->getId() ?? '',
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'APPWRITE_FUNCTION_JWT' => $jwt ?? '',
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]);
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/** Execute function */
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try {
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$executionResponse = $this->executor->createExecution(
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projectId: $project->getId(),
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deploymentId: $deploymentId,
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path: $build->getAttribute('outputPath', ''),
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vars: $vars,
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entrypoint: $deployment->getAttribute('entrypoint', ''),
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data: $vars['APPWRITE_FUNCTION_DATA'] ?? '',
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runtime: $function->getAttribute('runtime', ''),
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timeout: $function->getAttribute('timeout', 0),
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baseImage: $runtime['image']
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);
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/** Update execution status */
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$execution
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->setAttribute('status', $executionResponse['status'])
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->setAttribute('statusCode', $executionResponse['statusCode'])
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->setAttribute('response', $executionResponse['response'])
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->setAttribute('stdout', $executionResponse['stdout'])
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->setAttribute('stderr', $executionResponse['stderr'])
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->setAttribute('duration', $executionResponse['duration']);
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} catch (\Throwable $th) {
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$interval = (new \DateTime())->diff(new \DateTime($execution->getCreatedAt()));
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$execution
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->setAttribute('duration', (float)$interval->format('%s.%f'))
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->setAttribute('status', 'failed')
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->setAttribute('statusCode', $th->getCode())
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->setAttribute('stderr', $th->getMessage());
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Console::error($th->getMessage());
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}
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$execution = $dbForProject->updateDocument('executions', $executionId, $execution);
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/** Trigger Webhook */
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$executionModel = new Execution();
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$executionUpdate = new Event(Event::WEBHOOK_QUEUE_NAME, Event::WEBHOOK_CLASS_NAME);
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$executionUpdate
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->setProject($project)
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->setUser($user)
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->setEvent('functions.[functionId].executions.[executionId].update')
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->setParam('functionId', $function->getId())
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->setParam('executionId', $execution->getId())
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->setPayload($execution->getArrayCopy(array_keys($executionModel->getRules())))
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->trigger();
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/** Trigger Functions */
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$executionUpdate
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->setClass(Event::FUNCTIONS_CLASS_NAME)
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->setQueue(Event::FUNCTIONS_QUEUE_NAME)
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->trigger();
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/** Trigger realtime event */
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$allEvents = Event::generateEvents('functions.[functionId].executions.[executionId].update', [
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'functionId' => $function->getId(),
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'executionId' => $execution->getId()
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]);
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$target = Realtime::fromPayload(
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// Pass first, most verbose event pattern
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event: $allEvents[0],
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payload: $execution
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);
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Realtime::send(
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projectId: 'console',
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payload: $execution->getArrayCopy(),
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events: $allEvents,
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channels: $target['channels'],
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roles: $target['roles']
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);
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Realtime::send(
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projectId: $project->getId(),
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payload: $execution->getArrayCopy(),
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events: $allEvents,
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channels: $target['channels'],
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roles: $target['roles']
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);
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/** Update usage stats */
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global $register;
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if (App::getEnv('_APP_USAGE_STATS', 'enabled') === 'enabled') {
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$statsd = $register->get('statsd');
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$usage = new Stats($statsd);
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$usage
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->setParam('projectId', $project->getId())
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->setParam('projectInternalId', $project->getInternalId())
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->setParam('functionId', $function->getId())
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->setParam('executions.{scope}.compute', 1)
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->setParam('executionStatus', $execution->getAttribute('status', ''))
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->setParam('executionTime', $execution->getAttribute('duration'))
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->setParam('networkRequestSize', 0)
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->setParam('networkResponseSize', 0)
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->submit();
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}
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}
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public function shutdown(): void
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{
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}
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}
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