+global\OC_Util::checkServer()

Complexity

Conditions	42
Paths	> 20000

Size

Total Lines	236
Code Lines	140

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	80
CRAP Score	320.0752

<?php
	public static function checkServer(\OCP\IConfig $config) {
		$l = \OC::$server->getL10N('lib');
		$errors = array();
		$CONFIG_DATADIRECTORY = $config->getSystemValue('datadirectory', OC::$SERVERROOT . '/data');

		if (!self::needUpgrade($config) && $config->getSystemValue('installed', false)) {
			// this check needs to be done every time
			$errors = self::checkDataDirectoryValidity($CONFIG_DATADIRECTORY);
		}

		// Assume that if checkServer() succeeded before in this session, then all is fine.
		if (\OC::$server->getSession()->exists('checkServer_succeeded') && \OC::$server->getSession()->get('checkServer_succeeded')) {
			return $errors;
		}

		$webServerRestart = false;
		$setup = new \OC\Setup($config, \OC::$server->getIniWrapper(), \OC::$server->getL10N('lib'),
			new \OC_Defaults(), \OC::$server->getLogger(), \OC::$server->getSecureRandom());
		$availableDatabases = $setup->getSupportedDatabases();
		if (empty($availableDatabases)) {
			$errors[] = array(
				'error' => $l->t('No database drivers (sqlite, mysql, or postgresql) installed.'),
				'hint' => '' //TODO: sane hint
			);
			$webServerRestart = true;
		}

		// Check if server running on Windows platform
		if(OC_Util::runningOnWindows()) {
			$errors[] = [
				'error' => $l->t('Microsoft Windows Platform is not supported'),
				'hint' => $l->t('Running ownCloud Server on the Microsoft Windows platform is not supported. We suggest you ' .
					'use a Linux server in a virtual machine if you have no option for migrating the server itself. ' .
					'Find Linux packages as well as easy to deploy virtual machine images on <a href="%s">%s</a>. ' .
					'For migrating existing installations to Linux you can find some tips and a migration script ' .
					'in <a href="%s">our documentation</a>.',
					['https://owncloud.org/install/', 'owncloud.org/install/', 'https://owncloud.org/?p=8045'])
			];
		}

		// Check if config folder is writable.
		if (!is_writable(OC::$configDir) or !is_readable(OC::$configDir)) {
			$errors[] = array(
				'error' => $l->t('Cannot write into "config" directory'),
				'hint' => $l->t('This can usually be fixed by '
					. '%sgiving the webserver write access to the config directory%s.',
					array('<a href="' . \OC_Helper::linkToDocs('admin-dir_permissions') . '" target="_blank">', '</a>'))
			);
		}

		// Check if there is a writable install folder.
		if ($config->getSystemValue('appstoreenabled', true)) {
			if (OC_App::getInstallPath() === null
				|| !is_writable(OC_App::getInstallPath())
				|| !is_readable(OC_App::getInstallPath())
			) {
				$errors[] = array(
					'error' => $l->t('Cannot write into "apps" directory'),
					'hint' => $l->t('This can usually be fixed by '
						. '%sgiving the webserver write access to the apps directory%s'
						. ' or disabling the appstore in the config file.',
						array('<a href="' . \OC_Helper::linkToDocs('admin-dir_permissions') . '" target="_blank">', '</a>'))
				);
			}
		}
		// Create root dir.
		if ($config->getSystemValue('installed', false)) {
			if (!is_dir($CONFIG_DATADIRECTORY)) {
				$success = @mkdir($CONFIG_DATADIRECTORY);
				if ($success) {
					$errors = array_merge($errors, self::checkDataDirectoryPermissions($CONFIG_DATADIRECTORY));
				} else {
					$errors[] = array(
						'error' => $l->t('Cannot create "data" directory (%s)', array($CONFIG_DATADIRECTORY)),
						'hint' => $l->t('This can usually be fixed by '
							. '<a href="%s" target="_blank">giving the webserver write access to the root directory</a>.',
							array(OC_Helper::linkToDocs('admin-dir_permissions')))
					);
				}
			} else if (!is_writable($CONFIG_DATADIRECTORY) or !is_readable($CONFIG_DATADIRECTORY)) {
				//common hint for all file permissions error messages
				$permissionsHint = $l->t('Permissions can usually be fixed by '
					. '%sgiving the webserver write access to the root directory%s.',
					array('<a href="' . \OC_Helper::linkToDocs('admin-dir_permissions') . '" target="_blank">', '</a>'));
				$errors[] = array(
					'error' => 'Data directory (' . $CONFIG_DATADIRECTORY . ') not writable by ownCloud',
					'hint' => $permissionsHint
				);
			} else {
				$errors = array_merge($errors, self::checkDataDirectoryPermissions($CONFIG_DATADIRECTORY));
			}
		}

		if (!OC_Util::isSetLocaleWorking()) {
			$errors[] = array(
				'error' => $l->t('Setting locale to %s failed',
					array('en_US.UTF-8/fr_FR.UTF-8/es_ES.UTF-8/de_DE.UTF-8/ru_RU.UTF-8/'
						. 'pt_BR.UTF-8/it_IT.UTF-8/ja_JP.UTF-8/zh_CN.UTF-8')),
				'hint' => $l->t('Please install one of these locales on your system and restart your webserver.')
			);
		}

		// Contains the dependencies that should be checked against
		// classes = class_exists
		// functions = function_exists
		// defined = defined
		// ini = ini_get
		// If the dependency is not found the missing module name is shown to the EndUser
		// When adding new checks always verify that they pass on Travis as well
		// for ini settings, see https://github.com/owncloud/administration/blob/master/travis-ci/custom.ini
		$dependencies = array(
			'classes' => array(
				'ZipArchive' => 'zip',
				'DOMDocument' => 'dom',
				'XMLWriter' => 'XMLWriter'
			),
			'functions' => [
				'xml_parser_create' => 'libxml',
				'mb_detect_encoding' => 'mb multibyte',
				'ctype_digit' => 'ctype',
				'json_encode' => 'JSON',
				'gd_info' => 'GD',
				'gzencode' => 'zlib',
				'iconv' => 'iconv',
				'simplexml_load_string' => 'SimpleXML',
				'hash' => 'HASH Message Digest Framework',
				'curl_init' => 'cURL',
			],
			'defined' => array(
				'PDO::ATTR_DRIVER_NAME' => 'PDO'
			),
			'ini' => [
				'default_charset' => 'UTF-8',
			],
		);
		$missingDependencies = array();
		$invalidIniSettings = [];
		$moduleHint = $l->t('Please ask your server administrator to install the module.');

		/**
		 * FIXME: The dependency check does not work properly on HHVM on the moment
		 *        and prevents installation. Once HHVM is more compatible with our
		 *        approach to check for these values we should re-enable those
		 *        checks.
		 */
		$iniWrapper = \OC::$server->getIniWrapper();
		if (!self::runningOnHhvm()) {
			foreach ($dependencies['classes'] as $class => $module) {
				if (!class_exists($class)) {
					$missingDependencies[] = $module;
				}
			}
			foreach ($dependencies['functions'] as $function => $module) {
				if (!function_exists($function)) {
					$missingDependencies[] = $module;
				}
			}
			foreach ($dependencies['defined'] as $defined => $module) {
				if (!defined($defined)) {
					$missingDependencies[] = $module;
				}
			}
			foreach ($dependencies['ini'] as $setting => $expected) {
				if (is_bool($expected)) {
					if ($iniWrapper->getBool($setting) !== $expected) {
						$invalidIniSettings[] = [$setting, $expected];
					}
				}
				if (is_int($expected)) {
					if ($iniWrapper->getNumeric($setting) !== $expected) {
						$invalidIniSettings[] = [$setting, $expected];
					}
				}
				if (is_string($expected)) {
					if (strtolower($iniWrapper->getString($setting)) !== strtolower($expected)) {
						$invalidIniSettings[] = [$setting, $expected];
					}
				}
			}
		}

		foreach($missingDependencies as $missingDependency) {
			$errors[] = array(
				'error' => $l->t('PHP module %s not installed.', array($missingDependency)),
				'hint' => $moduleHint
			);
			$webServerRestart = true;
		}
		foreach($invalidIniSettings as $setting) {
			if(is_bool($setting[1])) {
				$setting[1] = ($setting[1]) ? 'on' : 'off';
			}
			$errors[] = [
				'error' => $l->t('PHP setting "%s" is not set to "%s".', [$setting[0], var_export($setting[1], true)]),
				'hint' =>  $l->t('Adjusting this setting in php.ini will make ownCloud run again')
			];
			$webServerRestart = true;
		}

		/**
		 * The mbstring.func_overload check can only be performed if the mbstring
		 * module is installed as it will return null if the checking setting is
		 * not available and thus a check on the boolean value fails.
		 *
		 * TODO: Should probably be implemented in the above generic dependency
		 *       check somehow in the long-term.
		 */
		if($iniWrapper->getBool('mbstring.func_overload') !== null &&
			$iniWrapper->getBool('mbstring.func_overload') === true) {
			$errors[] = array(
				'error' => $l->t('mbstring.func_overload is set to "%s" instead of the expected value "0"', [$iniWrapper->getString('mbstring.func_overload')]),
				'hint' => $l->t('To fix this issue set <code>mbstring.func_overload</code> to <code>0</code> in your php.ini')
			);
		}

		if (!self::isAnnotationsWorking()) {
			$errors[] = array(
				'error' => $l->t('PHP is apparently set up to strip inline doc blocks. This will make several core apps inaccessible.'),
				'hint' => $l->t('This is probably caused by a cache/accelerator such as Zend OPcache or eAccelerator.')
			);
		}

		if (!\OC::$CLI && $webServerRestart) {
			$errors[] = array(
				'error' => $l->t('PHP modules have been installed, but they are still listed as missing?'),
				'hint' => $l->t('Please ask your server administrator to restart the web server.')
			);
		}

		$errors = array_merge($errors, self::checkDatabaseVersion());

		// Cache the result of this function
		\OC::$server->getSession()->set('checkServer_succeeded', count($errors) == 0);

		return $errors;
	}