176 lines
4.6 KiB
PHP
176 lines
4.6 KiB
PHP
<?php
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/**
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* @author Thomas Müller
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* @copyright 2014 Thomas Müller deepdiver@owncloud.com
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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.
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* See the COPYING-README file.
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*/
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namespace OC\App;
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use OCP\IL10N;
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class DependencyAnalyzer {
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/** @var Platform */
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private $platform;
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/** @var \OCP\IL10N */
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private $l;
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/** @var array */
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private $missing = array();
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/** @var array */
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private $dependencies = array();
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/**
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* @param array $app
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* @param Platform $platform
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* @param \OCP\IL10N $l
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*/
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function __construct(array $app, Platform $platform, IL10N $l) {
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$this->platform = $platform;
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$this->l = $l;
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if (isset($app['dependencies'])) {
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$this->dependencies = $app['dependencies'];
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}
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}
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/**
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* @param array $app
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* @returns array of missing dependencies
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*/
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public function analyze() {
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$this->analyzePhpVersion();
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$this->analyzeDatabases();
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$this->analyzeCommands();
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$this->analyzeLibraries();
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$this->analyzeOS();
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return $this->missing;
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}
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private function analyzePhpVersion() {
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if (isset($this->dependencies['php']['@attributes']['min-version'])) {
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$minVersion = $this->dependencies['php']['@attributes']['min-version'];
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if (version_compare($this->platform->getPhpVersion(), $minVersion, '<')) {
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$this->addMissing((string)$this->l->t('PHP %s or higher is required.', $minVersion));
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}
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}
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if (isset($this->dependencies['php']['@attributes']['max-version'])) {
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$maxVersion = $this->dependencies['php']['@attributes']['max-version'];
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if (version_compare($this->platform->getPhpVersion(), $maxVersion, '>')) {
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$this->addMissing((string)$this->l->t('PHP with a version lower than %s is required.', $maxVersion));
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}
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}
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}
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private function analyzeDatabases() {
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if (!isset($this->dependencies['database'])) {
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return;
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}
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$supportedDatabases = $this->dependencies['database'];
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if (empty($supportedDatabases)) {
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return;
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}
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$supportedDatabases = array_map(function($db) {
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return $this->getValue($db);
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}, $supportedDatabases);
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$currentDatabase = $this->platform->getDatabase();
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if (!in_array($currentDatabase, $supportedDatabases)) {
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$this->addMissing((string)$this->l->t('Following databases are supported: %s', join(', ', $supportedDatabases)));
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}
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}
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private function analyzeCommands() {
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if (!isset($this->dependencies['command'])) {
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return;
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}
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$commands = $this->dependencies['command'];
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$os = $this->platform->getOS();
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foreach($commands as $command) {
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if (isset($command['@attributes']['os']) && $command['@attributes']['os'] !== $os) {
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continue;
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}
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$commandName = $this->getValue($command);
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if (!$this->platform->isCommandKnown($commandName)) {
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$this->addMissing((string)$this->l->t('The command line tool %s could not be found', $commandName));
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}
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}
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}
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private function analyzeLibraries() {
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if (!isset($this->dependencies['lib'])) {
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return;
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}
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$libs = $this->dependencies['lib'];
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foreach($libs as $lib) {
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$libName = $this->getValue($lib);
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$libVersion = $this->platform->getLibraryVersion($libName);
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if (is_null($libVersion)) {
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$this->addMissing((string)$this->l->t('The library %s is not available.', $libName));
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continue;
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}
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if (is_array($lib)) {
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if (isset($lib['@attributes']['min-version'])) {
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$minVersion = $lib['@attributes']['min-version'];
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if (version_compare($libVersion, $minVersion, '<')) {
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$this->addMissing((string)$this->l->t('Library %s with a version higher than %s is required - available version %s.',
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array($libName, $minVersion, $libVersion)));
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}
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}
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if (isset($lib['@attributes']['max-version'])) {
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$maxVersion = $lib['@attributes']['max-version'];
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if (version_compare($libVersion, $maxVersion, '>')) {
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$this->addMissing((string)$this->l->t('Library %s with a version lower than %s is required - available version %s.',
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array($libName, $maxVersion, $libVersion)));
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}
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}
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}
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}
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}
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private function analyzeOS() {
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if (!isset($this->dependencies['os'])) {
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return;
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}
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$oss = $this->dependencies['os'];
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if (empty($oss)) {
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return;
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}
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$oss = array_map(function($os) {
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return $this->getValue($os);
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}, $oss);
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$currentOS = $this->platform->getOS();
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if (!in_array($currentOS, $oss)) {
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$this->addMissing((string)$this->l->t('Following platforms are supported: %s', join(', ', $oss)));
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}
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}
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/**
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* @param $element
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* @return mixed
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*/
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private function getValue($element) {
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if (isset($element['@value']))
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return $element['@value'];
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return strval($element);
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}
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/**
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* @param $minVersion
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*/
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private function addMissing($message) {
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$this->missing[] = $message;
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}
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}
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