TaskUploaderController.php

<?php
 
namespace Bitrix\Bizproc\FileUploader;
 
use Bitrix\Main\Engine\CurrentUser;
use Bitrix\UI\FileUploader\FileOwnershipCollection;
use Bitrix\UI\FileUploader\Configuration;
use Bitrix\UI\FileUploader\UploaderController;
 
class TaskUploaderController extends UploaderController
{
    public function __construct(array $options)
    {
        $options['taskId'] = (int)($options['taskId'] ?? 0);
        $options['fieldId'] = (string)($options['fieldName'] ?? 0);
 
        parent::__construct($options);
    }
 
    public function isAvailable(): bool
    {
        return true;
    }
 
    public function getConfiguration(): Configuration
    {
        return new Configuration();
    }
 
    public function canUpload(): bool
    {
        [
            'taskId' => $taskId,
            'fieldId' => $fieldId,
        ] = $this->getOptions();
 
        if (!$taskId)
        {
            return false;
        }
 
        $userId = (int)(CurrentUser::get()?->getId() ?? 0);
        $taskUserIds = \CBPTaskService::getTaskUserIds($taskId);
 
        if (!in_array($userId, $taskUserIds, true))
        {
            return false;
        }
 
        $task = \CBPTaskService::getList(
            arFilter: ['ID' => $taskId],
            arSelectFields: ['ACTIVITY', 'PARAMETERS', 'STATUS']
        )->fetch();
 
        if ($task && (int)$task['STATUS'] === \CBPTaskStatus::Running)
        {
            $taskFields = \CBPDocument::getTaskControls($task)['FIELDS'] ?? [];
 
            $editableFields = array_filter(
                $taskFields,
                static fn($field) => $field['Id'] === $fieldId && in_array($field['Type'], ['file', 'S:DiskFile']),
            );
 
            return count($editableFields) > 0;
        }
 
        return false;
    }
 
    public function verifyFileOwner(FileOwnershipCollection $files): void
    {
        $stop = true;
 
        // $entityFiles = $this->fetchToDoActivityFiles();
        // foreach ($files as $file)
        // {
        //  if (in_array($file->getId(), $entityFiles, true))
        //  {
        //      $file->markAsOwn();
        //  }
        // }
    }
 
    public function canView(): bool
    {
        return true;// todo: check?
    }
 
    public function canRemove(): bool
    {
        return false;
    }
}