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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;
require_once PIWIK_INCLUDE_PATH . '/core/Log.php';
/**
* Holds PHP error information (non-exception errors). Also contains log formatting logic
* for PHP errors and Piwik's error handler function.
*/
class Error
{
/**
* The backtrace string to use when testing.
*
* @var string
*/
public static $debugBacktraceForTests = null;
/**
* The error number. See http://php.net/manual/en/errorfunc.constants.php#errorfunc.constants.errorlevels
*
* @var int
*/
public $errno;
/**
* The error message.
*
* @var string
*/
public $errstr;
/**
* The file in which the error occurred.
*
* @var string
*/
public $errfile;
/**
* The line number on which the error occurred.
*
* @var int
*/
public $errline;
/**
* The error backtrace.
*
* @var string
*/
public $backtrace;
/**
* Constructor.
*
* @param int $errno
* @param string $errstr
* @param string $errfile
* @param int $errline
* @param string $backtrace
*/
public function __construct($errno, $errstr, $errfile, $errline, $backtrace)
{
$this->errno = $errno;
$this->errstr = $errstr;
$this->errfile = $errfile;
$this->errline = $errline;
$this->backtrace = $backtrace;
}
public function getErrNoString()
{
switch ($this->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 ({$this->errno})";
}
}
public static function formatFileAndDBLogMessage(&$message, $level, $tag, $datetime, $log)
{
if ($message instanceof Error) {
$message = $message->errfile . '(' . $message->errline . '): ' . $message->getErrNoString()
. ' - ' . $message->errstr . "\n" . $message->backtrace;
$message = $log->formatMessage($level, $tag, $datetime, $message);
}
}
public static function formatScreenMessage(&$message, $level, $tag, $datetime, $log)
{
if ($message instanceof Error) {
$errno = $message->errno & error_reporting();
// problem when using error_reporting with the @ silent fail operator
// it gives an errno 0, and in this case the objective is to NOT display anything on the screen!
// is there any other case where the errno is zero at this point?
if ($errno == 0) {
$message = false;
return;
}
if (!Common::isPhpCliMode()) {
@header('Content-Type: text/html; charset=utf-8');
}
$htmlString = '';
$htmlString .= "\n<div style='word-wrap: break-word; border: 3px solid red; padding:4px; width:70%; background-color:#FFFF96;'>
<strong>There is an error. Please report the message (Piwik " . (class_exists('Piwik\Version') ? Version::VERSION : '') . ")
and full backtrace in the <a href='?module=Proxy&action=redirect&url=http://forum.piwik.org' target='_blank'>Piwik forums</a> (please do a Search first as it might have been reported already!).<br /><br/>
";
$htmlString .= $message->getErrNoString();
$htmlString .= ":</strong> <em>{$message->errstr}</em> in <strong>{$message->errfile}</strong>";
$htmlString .= " on line <strong>{$message->errline}</strong>\n";
$htmlString .= "<br /><br />Backtrace --><div style=\"font-family:Courier;font-size:10pt\"><br />\n";
$htmlString .= str_replace("\n", "<br />\n", $message->backtrace);
$htmlString .= "</div><br />";
$htmlString .= "\n </pre></div><br />";
$message = $htmlString;
}
}
public static function setErrorHandler()
{
Piwik::addAction('Log.formatFileMessage', array('\\Piwik\\Error', 'formatFileAndDBLogMessage'));
Piwik::addAction('Log.formatDatabaseMessage', array('\\Piwik\\Error', 'formatFileAndDBLogMessage'));
Piwik::addAction('Log.formatScreenMessage', array('\\Piwik\\Error', 'formatScreenMessage'));
set_error_handler(array('\\Piwik\\Error', 'errorHandler'));
}
public static function errorHandler($errno, $errstr, $errfile, $errline)
{
// if the error has been suppressed by the @ we don't handle the error
if (error_reporting() == 0) {
return;
}
$backtrace = '';
if (empty(self::$debugBacktraceForTests)) {
$bt = @debug_backtrace();
if ($bt !== null && isset($bt[0])) {
foreach ($bt as $i => $debug) {
$backtrace .= "#$i "
. (isset($debug['class']) ? $debug['class'] : '')
. (isset($debug['type']) ? $debug['type'] : '')
. (isset($debug['function']) ? $debug['function'] : '')
. '(...) called at ['
. (isset($debug['file']) ? $debug['file'] : '') . ':'
. (isset($debug['line']) ? $debug['line'] : '') . ']' . "\n";
}
}
} else {
$backtrace = self::$debugBacktraceForTests;
}
$error = new Error($errno, $errstr, $errfile, $errline, $backtrace);
Log::error($error);
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:
exit;
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:
// do not exit
break;
}
}
}
|
