/**
* Get system information
*/
public static function getSystemInformation()
{
global $piwik_minimumPHPVersion;
$minimumMemoryLimit = Config::getInstance()->General['minimum_memory_limit'];
$infos = array();
$infos['general_infos'] = array();
$directoriesToCheck = array();
if (!DbHelper::isInstalled()) {
// at install, need /config to be writable (so we can create config.ini.php)
$directoriesToCheck[] = '/config/';
}
$directoriesToCheck = array_merge($directoriesToCheck, array('/tmp/', '/tmp/assets/', '/tmp/cache/', '/tmp/latest/', '/tmp/logs/', '/tmp/sessions/', '/tmp/tcpdf/', '/tmp/templates_c/'));
$infos['directories'] = Filechecks::checkDirectoriesWritable($directoriesToCheck);
$infos['can_auto_update'] = Filechecks::canAutoUpdate();
self::initServerFilesForSecurity();
$infos['phpVersion_minimum'] = $piwik_minimumPHPVersion;
$infos['phpVersion'] = PHP_VERSION;
$infos['phpVersion_ok'] = version_compare($piwik_minimumPHPVersion, $infos['phpVersion']) === -1;
// critical errors
$extensions = @get_loaded_extensions();
$needed_extensions = array('zlib', 'SPL', 'iconv', 'Reflection');
$infos['needed_extensions'] = $needed_extensions;
$infos['missing_extensions'] = array();
foreach ($needed_extensions as $needed_extension) {
if (!in_array($needed_extension, $extensions)) {
$infos['missing_extensions'][] = $needed_extension;
}
}
$infos['pdo_ok'] = false;
if (in_array('PDO', $extensions)) {
$infos['pdo_ok'] = true;
}
$infos['adapters'] = Adapter::getAdapters();
$needed_functions = array('debug_backtrace', 'create_function', 'eval', 'gzcompress', 'gzuncompress', 'pack');
$infos['needed_functions'] = $needed_functions;
$infos['missing_functions'] = array();
foreach ($needed_functions as $needed_function) {
if (!self::functionExists($needed_function)) {
$infos['missing_functions'][] = $needed_function;
}
}
// warnings
$desired_extensions = array('json', 'libxml', 'dom', 'SimpleXML');
$infos['desired_extensions'] = $desired_extensions;
$infos['missing_desired_extensions'] = array();
foreach ($desired_extensions as $desired_extension) {
if (!in_array($desired_extension, $extensions)) {
$infos['missing_desired_extensions'][] = $desired_extension;
}
}
$desired_functions = array('set_time_limit', 'mail', 'parse_ini_file', 'glob');
$infos['desired_functions'] = $desired_functions;
$infos['missing_desired_functions'] = array();
foreach ($desired_functions as $desired_function) {
if (!self::functionExists($desired_function)) {
$infos['missing_desired_functions'][] = $desired_function;
}
}
$infos['openurl'] = Http::getTransportMethod();
$infos['gd_ok'] = SettingsServer::isGdExtensionEnabled();
$infos['hasMbstring'] = false;
$infos['multibyte_ok'] = true;
if (function_exists('mb_internal_encoding')) {
$infos['hasMbstring'] = true;
if ((int) ini_get('mbstring.func_overload') != 0) {
$infos['multibyte_ok'] = false;
}
}
$serverSoftware = isset($_SERVER['SERVER_SOFTWARE']) ? $_SERVER['SERVER_SOFTWARE'] : '';
$infos['serverVersion'] = addslashes($serverSoftware);
$infos['serverOs'] = @php_uname();
$infos['serverTime'] = date('H:i:s');
$infos['registerGlobals_ok'] = ini_get('register_globals') == 0;
$infos['memoryMinimum'] = $minimumMemoryLimit;
$infos['memory_ok'] = true;
$infos['memoryCurrent'] = '';
$raised = SettingsServer::raiseMemoryLimitIfNecessary();
if (($memoryValue = SettingsServer::getMemoryLimitValue()) > 0) {
$infos['memoryCurrent'] = $memoryValue . 'M';
$infos['memory_ok'] = $memoryValue >= $minimumMemoryLimit;
}
$infos['isWindows'] = SettingsServer::isWindows();
$integrityInfo = Filechecks::getFileIntegrityInformation();
$infos['integrity'] = $integrityInfo[0];
$infos['integrityErrorMessages'] = array();
if (isset($integrityInfo[1])) {
if ($infos['integrity'] == false) {
$infos['integrityErrorMessages'][] = Piwik::translate('General_FileIntegrityWarningExplanation');
}
$infos['integrityErrorMessages'] = array_merge($infos['integrityErrorMessages'], array_slice($integrityInfo, 1));
}
$infos['timezone'] = SettingsServer::isTimezoneSupportEnabled();
$infos['tracker_status'] = Common::getRequestVar('trackerStatus', 0, 'int');
$infos['protocol'] = ProxyHeaders::getProtocolInformation();
if (!\Piwik\ProxyHttp::isHttps() && $infos['protocol'] !== null) {
$infos['general_infos']['assume_secure_protocol'] = '1';
}
if (count($headers = ProxyHeaders::getProxyClientHeaders()) > 0) {
$infos['general_infos']['proxy_client_headers'] = $headers;
}
if (count($headers = ProxyHeaders::getProxyHostHeaders()) > 0) {
$infos['general_infos']['proxy_host_headers'] = $headers;
}
// check if filesystem is NFS, if it is file based sessions won't work properly
$infos['is_nfs'] = Filesystem::checkIfFileSystemIsNFS();
$infos = self::enrichSystemChecks($infos);
return $infos;
}
/**
* Write configuration file from session-store
*/
private function createConfigFile($dbInfos)
{
$config = Config::getInstance();
// make sure DB sessions are used if the filesystem is NFS
if (Filesystem::checkIfFileSystemIsNFS()) {
$config->General['session_save_handler'] = 'dbtable';
}
if (count($headers = ProxyHeaders::getProxyClientHeaders()) > 0) {
$config->General['proxy_client_headers'] = $headers;
}
if (count($headers = ProxyHeaders::getProxyHostHeaders()) > 0) {
$config->General['proxy_host_headers'] = $headers;
}
if (Common::getRequestVar('clientProtocol', 'http', 'string') == 'https') {
$protocol = 'https';
} else {
$protocol = ProxyHeaders::getProtocolInformation();
}
if (!empty($protocol) && !\Piwik\ProxyHttp::isHttps()) {
$config->General['assume_secure_protocol'] = '1';
}
$config->General['salt'] = Common::generateUniqId();
$config->General['installation_in_progress'] = 1;
$config->database = $dbInfos;
if (!DbHelper::isDatabaseConnectionUTF8()) {
$config->database['charset'] = 'utf8';
}
$config->forceSave();
}
/**
* Write configuration file from session-store
*/
private function createConfigFile($dbInfos)
{
$config = Config::getInstance();
// make sure DB sessions are used if the filesystem is NFS
if (Filesystem::checkIfFileSystemIsNFS()) {
$config->General['session_save_handler'] = 'dbtable';
}
if (count($headers = ProxyHeaders::getProxyClientHeaders()) > 0) {
$config->General['proxy_client_headers'] = $headers;
}
if (count($headers = ProxyHeaders::getProxyHostHeaders()) > 0) {
$config->General['proxy_host_headers'] = $headers;
}
if (Common::getRequestVar('clientProtocol', 'http', 'string') == 'https') {
$protocol = 'https';
} else {
$protocol = ProxyHeaders::getProtocolInformation();
}
if (!empty($protocol) && !\Piwik\ProxyHttp::isHttps()) {
$config->General['assume_secure_protocol'] = '1';
}
$config->General['salt'] = Common::generateUniqId();
$config->General['installation_in_progress'] = 1;
$config->database = $dbInfos;
if (!DbHelper::isDatabaseConnectionUTF8()) {
$config->database['charset'] = 'utf8';
}
# Improved Security with IBM Bluemix
# With SSL ALWAYS available for all Bluemix apps, let's require all requests
# to be made over SSL (https) so that data is NOT sent in the clear.
# Non-ssl requests will trigger a
# Error: Form security failed.
# Please reload the form and check that your cookies are enabled
# Reference: http://piwik.org/faq/how-to/faq_91/
# Reference: https://developer.ibm.com/answers/questions/8312/how-do-i-enable-tlsssl-for-my-bluemix-application/
$config->General['assume_secure_protocol'] = 1;
$config->General['force_ssl'] = 1;
# Setup proxy_client_headers to accurately detect GeoIPs of visiting clients
$config->General['proxy_client_headers'] = array("HTTP_X_CLIENT_IP", "HTTP_X_FORWARDED_FOR", "HTTP_X_CLUSTER_CLIENT_IP", "HTTP_CLIENT_IP");
$config->General['proxy_host_headers'] = "HTTP_X_FORWARDED_HOST";
# Implement some default settings that optimize performance
$config->General['enabled_periods_UI'] = "day,week,month,year";
$config->General['enabled_periods_API'] = "day,week,month,year";
$config->General['action_category_level_limit'] = 3;
$config->General['show_multisites_sparklines'] = 0;
$config->General['anonymous_user_enable_use_segments_API'] = 0;
$config->General['browser_archiving_disabled_enforce'] = 1;
$config->General['enable_create_realtime_segments'] = 0;
$config->General['enable_segment_suggested_values'] = 0;
$config->General['adding_segment_requires_access'] = "superuser";
$config->General['allow_adding_segments_for_all_websites'] = 0;
$config->General['datatable_row_limits'] = "5,10,25,50";
$config->General['enable_browser_archiving_triggering'] = 0;
$config->General['multisites_refresh_after_seconds'] = 0;
$config->General['enable_delete_old_data_settings_admin'] = 0;
$config->General['enable_auto_update'] = 0;
$config->Debug['enable_measure_piwik_usage_in_idsite'] = 0;
$config->Debug['allow_upgrades_to_beta'] = 0;
$config->Tracker['new_visit_api_requires_admin'] = 0;
# Let us have this Piwik deploy track itself to get some early data and success :-)
# $config->Debug['enable_measure_piwik_usage_in_idsite'] = 1;
# Emailing the easy way with IBM Bluemix + the SendGrid Service
if (isset($_ENV["REDISHOSTNAME"])) {
$config->RedisCache['host'] = $_ENV["REDISHOSTNAME"];
$config->RedisCache['port'] = $_ENV["REDISPORT"];
$config->RedisCache['timeout'] = 0.0;
$config->RedisCache['password'] = $_ENV["REDISPASSWORD"];
$config->RedisCache['database'] = 14;
$config->ChainedCache['backends'] = array("array", "redis");
}
# Let's setup the config files trusted hosts entries to handle
# 1...N amount of user-defined IBM Bluemix app routes
if (isset($_ENV["APPURIS"])) {
foreach ($_ENV["APPURIS"] as $application_uri) {
$this->addTrustedHosts("https://" . $application_uri);
}
}
# Emailing the easy way with IBM Bluemix + the SendGrid Service
if (isset($_ENV["MAILHOST"])) {
$config->mail['transport'] = "smtp";
$config->mail['port'] = 587;
$config->mail['type'] = "Plain";
$config->mail['host'] = $_ENV["MAILHOST"];
$config->mail['username'] = $_ENV["MAILUSER"];
$config->mail['password'] = $_ENV["MAILPASSWORD"];
}
$config->forceSave();
// re-save the currently viewed language (since we saved the config file, there is now a salt which makes the
// existing session cookie invalid)
$this->resetLanguageCookie();
}