Ubuntu
translator = $translator;
}
public function execute()
{
$label = $this->translator->translate('Installation_SystemCheckFunctions');
$result = new \Piwik\Plugins\Diagnostics\Diagnostic\DiagnosticResult($label);
foreach ($this->getRequiredFunctions() as $function) {
if (!self::functionExists($function)) {
$status = \Piwik\Plugins\Diagnostics\Diagnostic\DiagnosticResult::STATUS_ERROR;
$comment = sprintf('%s
%s
%s
', $function, $this->getHelpMessage($function), $this->translator->translate('Installation_RestartWebServer'));
} else {
$status = \Piwik\Plugins\Diagnostics\Diagnostic\DiagnosticResult::STATUS_OK;
$comment = $function;
}
$result->addItem(new \Piwik\Plugins\Diagnostics\Diagnostic\DiagnosticResultItem($status, $comment));
}
return array($result);
}
/**
* @return string[]
*/
private function getRequiredFunctions()
{
return array('debug_backtrace', 'escapeshellarg', 'eval', 'hash', 'gzcompress', 'gzuncompress', 'pack');
}
/**
* Tests if a function exists. Also handles the case where a function is disabled via Suhosin.
*
* @param string $function
* @return bool
*/
public static function functionExists($function)
{
// eval() is a language construct
if ($function == 'eval') {
// does not check suhosin.executor.eval.whitelist (or blacklist)
if (extension_loaded('suhosin')) {
return @ini_get("suhosin.executor.disable_eval") != "1";
}
return \true;
}
$exists = function_exists($function);
if (extension_loaded('suhosin')) {
$blacklist = @ini_get("suhosin.executor.func.blacklist");
if (!empty($blacklist)) {
$blacklistFunctions = array_map('strtolower', array_map('trim', explode(',', $blacklist)));
return $exists && !in_array($function, $blacklistFunctions);
}
}
return $exists;
}
private function getHelpMessage($missingFunction)
{
$messages = array('debug_backtrace' => 'Installation_SystemCheckDebugBacktraceHelp', 'eval' => 'Installation_SystemCheckEvalHelp', 'hash' => 'Installation_SystemCheckHashHelp', 'gzcompress' => 'Installation_SystemCheckGzcompressHelp', 'gzuncompress' => 'Installation_SystemCheckGzuncompressHelp', 'pack' => 'Installation_SystemCheckPackHelp');
return $this->translator->translate($messages[$missingFunction]);
}
}