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<?php
/**
* Piwik - free/libre analytics platform
*
* @link http://piwik.org
* @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
*/
namespace Piwik;
use Piwik\Exception\ErrorException;
/**
* Piwik's error handler function.
*/
class ErrorHandler
{
/**
* Returns a string description of a PHP error number.
*
* @param int $errno `E_ERROR`, `E_WARNING`, `E_PARSE`, etc.
* @return string
*/
public static function getErrNoString($errno)
{
switch ($errno) {
case E_ERROR:
return "Error";
case E_WARNING:
return "Warning";
case E_PARSE:
return "Parse Error";
case E_NOTICE:
return "Notice";
case E_CORE_ERROR:
return "Core Error";
case E_CORE_WARNING:
return "Core Warning";
case E_COMPILE_ERROR:
return "Compile Error";
case E_COMPILE_WARNING:
return "Compile Warning";
case E_USER_ERROR:
return "User Error";
case E_USER_WARNING:
return "User Warning";
case E_USER_NOTICE:
return "User Notice";
case E_STRICT:
return "Strict Notice";
case E_RECOVERABLE_ERROR:
return "Recoverable Error";
case E_DEPRECATED:
return "Deprecated";
case E_USER_DEPRECATED:
return "User Deprecated";
default:
return "Unknown error ($errno)";
}
}
public static function registerErrorHandler()
{
set_error_handler(array('Piwik\ErrorHandler', 'errorHandler'));
}
public static function errorHandler($errno, $errstr, $errfile, $errline)
{
// if the error has been suppressed by the @ we don't handle the error
if (error_reporting() == 0) {
return;
}
switch ($errno) {
case E_ERROR:
case E_PARSE:
case E_CORE_ERROR:
case E_CORE_WARNING:
case E_COMPILE_ERROR:
case E_COMPILE_WARNING:
case E_USER_ERROR:
Common::sendResponseCode(500);
// Convert the error to an exception with an HTML message
$e = new \Exception();
$message = self::getHtmlMessage($errno, $errstr, $errfile, $errline, $e->getTraceAsString());
throw new ErrorException($message, 0, $errno, $errfile, $errline);
break;
case E_WARNING:
case E_NOTICE:
case E_USER_WARNING:
case E_USER_NOTICE:
case E_STRICT:
case E_RECOVERABLE_ERROR:
case E_DEPRECATED:
case E_USER_DEPRECATED:
default:
try {
Log::warning(self::createLogMessage($errno, $errstr, $errfile, $errline));
} catch (\Exception $ex) {
// ignore (it's possible for this to happen if the StaticContainer hasn't been created yet)
}
break;
}
}
private static function createLogMessage($errno, $errstr, $errfile, $errline)
{
return sprintf(
"%s(%d): %s - %s - Matomo " . (class_exists('Piwik\Version') ? Version::VERSION : '') . " - Please report this message in the Matomo forums: https://forum.matomo.org (please do a search first as it might have been reported already)",
$errfile,
$errline,
ErrorHandler::getErrNoString($errno),
$errstr
);
}
private static function getHtmlMessage($errno, $errstr, $errfile, $errline, $trace)
{
$trace = Log::$debugBacktraceForTests ?: $trace;
$message = ErrorHandler::getErrNoString($errno) . ' - ' . $errstr;
$html = "<p>There is an error. Please report the message (Matomo " . (class_exists('Piwik\Version') ? Version::VERSION : '') . ")
and full backtrace in the <a target='_blank' rel='noreferrer noopener' href='https://forum.matomo.org'>Matomo forums</a> (please do a search first as it might have been reported already!).</p>";
$html .= "<p><strong>{$message}</strong> in <em>{$errfile}</em>";
$html .= " on line {$errline}</p>";
$html .= "Backtrace:<pre>";
$html .= str_replace("\n", "\n", $trace);
$html .= "</pre>";
return $html;
}
}
|
