86 lines
2.4 KiB
PHP
86 lines
2.4 KiB
PHP
<?php
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/**
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* @copyright Copyright (c) 2019 Arthur Schiwon <blizzz@arthur-schiwon.de>
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*
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* @author Arthur Schiwon <blizzz@arthur-schiwon.de>
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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\Files_External\Config;
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/**
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* Trait SimpleSubstitutionTrait
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*
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* @package OCA\Files_External\Config
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* @since 16.0.0
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*/
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trait SimpleSubstitutionTrait {
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/**
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* @var string the placeholder without $ prefix
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* @since 16.0.0
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*/
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private $placeholder;
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/** @var string */
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protected $sanitizedPlaceholder;
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/**
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* @param mixed $optionValue
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* @param string $replacement
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* @return mixed
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* @since 16.0.0
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*/
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private function processInput($optionValue, string $replacement) {
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$this->checkPlaceholder();
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if (is_array($optionValue)) {
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foreach ($optionValue as &$value) {
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$value = $this->substituteIfString($value, $replacement);
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}
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} else {
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$optionValue = $this->substituteIfString($optionValue, $replacement);
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}
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return $optionValue;
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}
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/**
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* @throws \RuntimeException
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*/
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protected function checkPlaceholder(): void {
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$this->sanitizedPlaceholder = trim(strtolower($this->placeholder));
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if(!(bool)\preg_match('/^[a-z0-9]*$/', $this->sanitizedPlaceholder)) {
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throw new \RuntimeException(sprintf(
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'Invalid placeholder %s, only [a-z0-9] are allowed', $this->sanitizedPlaceholder
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));
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}
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if($this->sanitizedPlaceholder === '') {
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throw new \RuntimeException('Invalid empty placeholder');
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}
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}
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/**
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* @param mixed $value
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* @param string $replacement
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* @return mixed
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*/
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protected function substituteIfString($value, string $replacement) {
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if(is_string($value)) {
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return str_ireplace('$' . $this->sanitizedPlaceholder, $replacement, $value);
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}
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return $value;
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}
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}
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