97 lines
3.5 KiB
PHP
97 lines
3.5 KiB
PHP
<?php
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/**
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* @copyright 2018 Christoph Wurst <christoph@winzerhof-wurst.at>
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*
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* @author Christoph Wurst <christoph@winzerhof-wurst.at>
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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 OC\App;
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use InvalidArgumentException;
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class CompareVersion {
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const REGEX_MAJOR = '/^\d+$/';
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const REGEX_MAJOR_MINOR = '/^\d+.\d+$/';
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const REGEX_MAJOR_MINOR_PATCH = '/^\d+.\d+.\d+$/';
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const REGEX_SERVER = '/^\d+.\d+.\d+(.\d+)?$/';
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/**
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* Checks if the given server version fulfills the given (app) version requirements.
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*
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* Version requirements can be 'major.minor.patch', 'major.minor' or just 'major',
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* so '13.0.1', '13.0' and '13' are valid.
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*
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* @param string $actual version as major.minor.patch notation
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* @param string $required version where major is requried and minor and patch are optional
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* @param string $comparator passed to `version_compare`
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* @return bool whether the requirement is fulfilled
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* @throws InvalidArgumentException if versions specified in an invalid format
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*/
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public function isCompatible(string $actual, string $required,
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string $comparator = '>='): bool {
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if (!preg_match(self::REGEX_SERVER, $actual)) {
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throw new InvalidArgumentException('server version is invalid');
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}
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if (preg_match(self::REGEX_MAJOR, $required) === 1) {
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return $this->compareMajor($actual, $required, $comparator);
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} else if (preg_match(self::REGEX_MAJOR_MINOR, $required) === 1) {
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return $this->compareMajorMinor($actual, $required, $comparator);
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} else if (preg_match(self::REGEX_MAJOR_MINOR_PATCH, $required) === 1) {
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return $this->compareMajorMinorPatch($actual, $required, $comparator);
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} else {
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throw new InvalidArgumentException('required version is invalid');
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}
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}
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private function compareMajor(string $actual, string $required,
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string $comparator) {
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$actualMajor = explode('.', $actual)[0];
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$requiredMajor = explode('.', $required)[0];
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return version_compare($actualMajor, $requiredMajor, $comparator);
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}
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private function compareMajorMinor(string $actual, string $required,
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string $comparator) {
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$actualMajor = explode('.', $actual)[0];
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$actualMinor = explode('.', $actual)[1];
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$requiredMajor = explode('.', $required)[0];
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$requiredMinor = explode('.', $required)[1];
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return version_compare("$actualMajor.$actualMinor",
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"$requiredMajor.$requiredMinor", $comparator);
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}
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private function compareMajorMinorPatch($actual, $required, $comparator) {
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$actualMajor = explode('.', $actual)[0];
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$actualMinor = explode('.', $actual)[1];
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$actualPatch = explode('.', $actual)[2];
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$requiredMajor = explode('.', $required)[0];
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$requiredMinor = explode('.', $required)[1];
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$requiredPatch = explode('.', $required)[2];
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return version_compare("$actualMajor.$actualMinor.$actualPatch",
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"$requiredMajor.$requiredMinor.$requiredPatch", $comparator);
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}
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}
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