97 lines
2.5 KiB
PHP
97 lines
2.5 KiB
PHP
<?php
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/**
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* Nextcloud - Gallery
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*
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* This file is licensed under the Affero General Public License version 3 or
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* later. See the COPYING file.
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*
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* @author Olivier Paroz <galleryapps@oparoz.com>
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*
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* @copyright Olivier Paroz 2017
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*/
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namespace OCA\Gallery\Config;
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/**
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* Validates parsed configuration elements
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*
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* @package OCA\Gallery\Config
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*/
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class ConfigValidator {
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/**
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* Determines if the content of that sub-section is safe for web use
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*
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* @param string $key the configuration sub-section identifier
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* @param array $parsedConfigItem the configuration for a sub-section
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*
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* @return bool
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*/
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public function isConfigSafe($key, $parsedConfigItem) {
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$safe = true;
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switch ($key) {
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case 'sorting':
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$safe = $this->isSortingSafe('type',$parsedConfigItem, $safe);
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$safe = $this->isSortingSafe('order',$parsedConfigItem, $safe);
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break;
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case 'design':
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$safe = $this->isDesignColourSafe($parsedConfigItem, $safe);
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break;
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}
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return $safe;
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}
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/**
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* Determines if the sorting type found in the config file is safe for web use
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* @param string will specify the key to check 'type' or 'order'
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* @param array $parsedConfigItem the sorting configuration to analyse
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* @param bool $safe whether the current config has been deemed safe to use so far
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* @return bool
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*/
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private function isSortingSafe($key,$parsedConfigItem, $safe) {
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if ($safe && array_key_exists($key, $parsedConfigItem)) {
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$safe = $safe && $this->sortingValidator($key, $parsedConfigItem[ $key ]);
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}
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return $safe;
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}
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/**
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* Determines if the background colour found in the config file is safe for web use
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*
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* @param array $parsedConfigItem the design configuration to analyse
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* @param bool $safe whether the current config has been deemed safe to use so far
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*
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* @return bool
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*/
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private function isDesignColourSafe($parsedConfigItem, $safe) {
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if (array_key_exists('background', $parsedConfigItem)) {
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$background = $parsedConfigItem['background'];
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$safe = $safe && ctype_xdigit(substr($background, 1));
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}
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return $safe;
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}
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/**
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* Validates the parsed sorting values against allowed values
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*
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* @param string $section the section in the sorting config to be analysed
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* @param string $value the value found in that section
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*
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* @return bool
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*/
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private function sortingValidator($section, $value) {
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if ($section === 'type') {
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$validValues = ['date', 'name'];
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} else {
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$validValues = ['des', 'asc'];
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}
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return in_array($value, $validValues);
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}
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}
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