111 lines
3.0 KiB
PHP
111 lines
3.0 KiB
PHP
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<?php
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/**
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* @copyright Copyright (c) 2016 Joas Schilling <coding@schilljs.com>
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program 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 Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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namespace OCA\WorkflowEngine\Check;
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use OCP\Files\Storage\IStorage;
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use OCP\WorkflowEngine\ICheck;
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abstract class AbstractStringCheck implements ICheck {
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/** @var array[] Nested array: [Pattern => [ActualValue => Regex Result]] */
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protected $matches;
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/**
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* @param IStorage $storage
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* @param string $path
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*/
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public function setFileInfo(IStorage $storage, $path) {
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// Nothing changes here with a different path
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}
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/**
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* @return string
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*/
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abstract protected function getActualValue();
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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, $value) {
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$actualValue = $this->getActualValue();
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return $this->executeStringCheck($operator, $value, $actualValue);
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}
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/**
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* @param string $operator
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* @param string $checkValue
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* @param string $actualValue
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* @return bool
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*/
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protected function executeStringCheck($operator, $checkValue, $actualValue) {
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if ($operator === 'is') {
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return $checkValue === $actualValue;
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} else if ($operator === '!is') {
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return $checkValue !== $actualValue;
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} else {
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$match = $this->match($checkValue, $actualValue);
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if ($operator === 'matches') {
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return $match === 1;
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} else {
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return $match === 0;
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}
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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 $value
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* @throws \UnexpectedValueException
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*/
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public function validateCheck($operator, $value) {
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if (!in_array($operator, ['is', '!is', 'matches', '!matches'])) {
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throw new \UnexpectedValueException('Invalid operator', 1);
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}
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if (in_array($operator, ['matches', '!matches']) &&
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@preg_match($value, null) === false) {
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throw new \UnexpectedValueException('Invalid regex', 2);
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}
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}
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/**
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* @param string $pattern
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* @param string $subject
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* @return int|bool
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*/
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protected function match($pattern, $subject) {
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$patternHash = md5($pattern);
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$subjectHash = md5($subject);
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if (isset($this->matches[$patternHash][$subjectHash])) {
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return $this->matches[$patternHash][$subjectHash];
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}
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if (!isset($this->matches[$patternHash])) {
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$this->matches[$patternHash] = [];
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}
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$this->matches[$patternHash][$subjectHash] = preg_match($pattern, $subject);
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return $this->matches[$patternHash][$subjectHash];
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}
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}
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