109 lines
2.5 KiB
PHP
109 lines
2.5 KiB
PHP
<?php
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/**
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* SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*/
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namespace OCA\WorkflowEngine\Check;
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use OCA\WorkflowEngine\Entity\File;
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use OCP\IL10N;
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use OCP\IRequest;
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use OCP\Util;
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use OCP\WorkflowEngine\ICheck;
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class FileSize implements ICheck {
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/** @var int */
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protected $size;
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/**
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* @param IL10N $l
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* @param IRequest $request
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*/
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public function __construct(
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protected IL10N $l,
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protected IRequest $request,
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) {
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}
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/**
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* @param string $operator
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* @param string $value
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* @return bool
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*/
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public function executeCheck($operator, $value) {
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$size = $this->getFileSizeFromHeader();
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$value = Util::computerFileSize($value);
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if ($size !== false) {
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switch ($operator) {
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case 'less':
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return $size < $value;
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case '!less':
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return $size >= $value;
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case 'greater':
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return $size > $value;
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case '!greater':
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return $size <= $value;
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}
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}
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return false;
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}
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/**
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* @param string $operator
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* @param string $value
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* @throws \UnexpectedValueException
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*/
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public function validateCheck($operator, $value) {
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if (!in_array($operator, ['less', '!less', 'greater', '!greater'])) {
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throw new \UnexpectedValueException($this->l->t('The given operator is invalid'), 1);
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}
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if (!preg_match('/^[0-9]+[ ]?[kmgt]?b$/i', $value)) {
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throw new \UnexpectedValueException($this->l->t('The given file size is invalid'), 2);
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}
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}
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/**
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* Gets the file size from HTTP headers.
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*
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* Checks 'OC-Total-Length' first; if unavailable and the method is POST or PUT,
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* checks 'Content-Length'. Returns the size as int, float, or false if not found or invalid.
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*
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* @return int|float|false File size in bytes, or false if unavailable.
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*/
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protected function getFileSizeFromHeader() {
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if ($this->size !== null) {
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// Already have it cached?
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return $this->size;
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}
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$size = $this->request->getHeader('OC-Total-Length');
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if ($size === '') {
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// Try fallback for upload methods
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$method = $this->request->getMethod();
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if (in_array($method, ['POST', 'PUT'], true)) {
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$size = $this->request->getHeader('Content-Length');
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}
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}
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if ($size !== '' && is_numeric($size)) {
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$this->size = Util::numericToNumber($size);
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} else {
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// No valid size header found
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$this->size = false;
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}
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return $this->size;
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}
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public function supportedEntities(): array {
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return [ File::class ];
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}
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public function isAvailableForScope(int $scope): bool {
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return true;
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}
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}
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