TrackManiaControl/application/core/ErrorHandler.php

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<?php
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namespace ManiaControl;
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use ManiaControl\Files\FileUtil;
use ManiaControl\Plugins\PluginManager;
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use ManiaControl\Update\UpdateManager;
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/**
* Error and Exception Manager Class
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*
* @author ManiaControl Team <mail@maniacontrol.com>
* @copyright 2014 ManiaControl Team
* @license http://www.gnu.org/licenses/ GNU General Public License, Version 3
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*/
class ErrorHandler {
/*
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* Constants
*/
const MC_DEBUG_NOTICE = 'ManiaControl.DebugNotice';
const SETTING_RESTART_ON_EXCEPTION = 'Automatically restart on Exceptions';
const LOG_SUPPRESSED_ERRORS = false;
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/*
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* Private Properties
*/
private $maniaControl = null;
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/**
* Construct Error Handler
*/
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public function __construct(ManiaControl $maniaControl) {
$this->maniaControl = $maniaControl;
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set_error_handler(array(&$this, 'handleError'), -1);
set_exception_handler(array(&$this, 'handleException'));
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}
/**
* Initialize other Error Handler Features
*/
public function init() {
$this->maniaControl->settingManager->initSetting($this, self::SETTING_RESTART_ON_EXCEPTION, true);
}
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/**
* ManiaControl Exception Handler
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*
* @param \Exception $exception
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* @param bool $shutdown
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*/
public function handleException(\Exception $exception, $shutdown = true) {
$message = "[ManiaControl EXCEPTION]: {$exception->getMessage()}";
$exceptionClass = get_class($exception);
$sourceClass = null;
$traceString = $this->parseBackTrace($exception->getTrace(), $sourceClass);
$logMessage = $message . PHP_EOL . 'Class: ' . $exceptionClass . PHP_EOL . 'Trace:' . PHP_EOL . $traceString;
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$this->maniaControl->log($logMessage);
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if (!ManiaControl::DEV_MODE) {
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$error = array();
$error['Type'] = 'Exception';
$error['Message'] = $message;
$error['Class'] = $exceptionClass;
$error['FileLine'] = $exception->getFile() . ': ' . $exception->getLine();
$error['SourceClass'] = $sourceClass;
$error['PluginId'] = PluginManager::getPluginId($sourceClass);
$error['Backtrace'] = $traceString;
$error['OperatingSystem'] = php_uname();
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$error['PHPVersion'] = phpversion();
if ($this->maniaControl->server) {
$error['ServerLogin'] = $this->maniaControl->server->login;
}
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if ($this->maniaControl->settingManager && $this->maniaControl->updateManager) {
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$error['UpdateChannel'] = $this->maniaControl->settingManager->getSettingValue($this->maniaControl->updateManager, UpdateManager::SETTING_UPDATECHECK_CHANNEL);
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$error['ManiaControlVersion'] = ManiaControl::VERSION . ' #' . $this->maniaControl->updateManager->getNightlyBuildDate();
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} else {
$error['ManiaControlVersion'] = ManiaControl::VERSION;
}
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$json = json_encode($error);
$info = base64_encode($json);
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$url = ManiaControl::URL_WEBSERVICE . 'errorreport?error=' . urlencode($info);
$success = FileUtil::loadFile($url);
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if (!json_decode($success)) {
logMessage('Exception-Report failed!');
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} else {
logMessage('Exception successfully reported!');
}
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}
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if ($shutdown) {
if ($this->shouldRestart()) {
$this->maniaControl->restart();
}
exit();
}
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}
/**
* Parse the Debug Backtrace into a String for the Error Report
*
* @param array $backtrace
* @param string $sourceClass
* @return string
*/
private function parseBackTrace(array $backtrace, &$sourceClass = null) {
$traceString = '';
$stepCount = 0;
foreach ($backtrace as $traceStep) {
$traceString .= PHP_EOL . '#' . $stepCount . ': ';
if (isset($traceStep['class'])) {
if (!$sourceClass) {
$sourceClass = $traceStep['class'];
}
$traceString .= $traceStep['class'];
}
if (isset($traceStep['type'])) {
$traceString .= $traceStep['type'];
}
if (isset($traceStep['function'])) {
$traceString .= $traceStep['function'] . '(';
if (isset($traceStep['args'])) {
$traceString .= $this->parseArgumentsArray($traceStep['args']);
}
$traceString .= ')';
}
if (isset($traceStep['file'])) {
$traceString .= ' in File ';
$traceString .= $traceStep['file'];
}
if (isset($traceStep['line'])) {
$traceString .= ' on Line ';
$traceString .= $traceStep['line'];
}
$stepCount++;
}
return $traceString;
}
/**
* Build a String from an Arguments Array
*
* @param array $args
* @return string
*/
private function parseArgumentsArray(array $args) {
$string = '';
$argsCount = count($args);
foreach ($args as $index => $arg) {
if (is_object($arg)) {
$string .= 'object(' . get_class($arg) . ')';
} else if (is_array($arg)) {
$string .= 'array(' . $this->parseArgumentsArray($arg) . ')';
} else {
$type = gettype($arg);
$string .= $type . '(' . print_r($arg, true) . ')';
}
if ($index < $argsCount - 1) {
$string .= ', ';
}
}
return $string;
}
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/**
* Test if ManiaControl should restart automatically
*
* @return bool
*/
private function shouldRestart() {
if (!$this->maniaControl || !$this->maniaControl->settingManager) {
return false;
}
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$setting = $this->maniaControl->settingManager->getSettingValue($this, self::SETTING_RESTART_ON_EXCEPTION, true);
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return $setting;
}
/**
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* Trigger a Debug Notice to the ManiaControl Website
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*
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* @param string $message
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*/
public function triggerDebugNotice($message) {
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$this->handleError(self::MC_DEBUG_NOTICE, $message);
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}
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/**
* ManiaControl Error Handler
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*
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* @param int $errorNumber
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* @param string $errorString
* @param string $errorFile
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* @param int $errorLine
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* @param array $errorContext
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* @return bool
*/
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public function handleError($errorNumber, $errorString, $errorFile = null, $errorLine = -1, array $errorContext = array()) {
$suppressed = (error_reporting() === 0);
if ($suppressed && !self::LOG_SUPPRESSED_ERRORS) {
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return false;
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}
$errorTag = $this->getErrorTag($errorNumber);
$traceSourceClass = null;
$message = $errorTag . ': ' . $errorString;
$fileLine = $errorFile . ': ' . $errorLine;
$traceString = $this->parseBackTrace(array_slice(debug_backtrace(), 1), $traceSourceClass);
$sourceClass = $this->getSourceClass($errorFile);
if (!$sourceClass) {
$sourceClass = $traceSourceClass;
}
$logMessage = $message . PHP_EOL . 'File&Line: ' . $fileLine . PHP_EOL . 'Trace: ' . $traceString;
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$this->maniaControl->log($logMessage);
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if (!ManiaControl::DEV_MODE && !$this->isUserErrorNumber($errorNumber) && !$suppressed) {
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$error = array();
$error['Type'] = 'Error';
$error['Message'] = $message;
$error['FileLine'] = $fileLine;
$error['SourceClass'] = $sourceClass;
$error['PluginId'] = PluginManager::getPluginId($sourceClass);
$error['Backtrace'] = $traceString;
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$error['OperatingSystem'] = php_uname();
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$error['PHPVersion'] = phpversion();
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if ($this->maniaControl->server) {
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$error['ServerLogin'] = $this->maniaControl->server->login;
}
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if ($this->maniaControl->settingManager && $this->maniaControl->updateManager) {
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$error['UpdateChannel'] = $this->maniaControl->settingManager->getSettingValue($this->maniaControl->updateManager, UpdateManager::SETTING_UPDATECHECK_CHANNEL);
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$error['ManiaControlVersion'] = ManiaControl::VERSION . ' ' . $this->maniaControl->updateManager->getNightlyBuildDate();
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} else {
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$error['ManiaControlVersion'] = ManiaControl::VERSION;
}
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$json = json_encode($error);
$info = base64_encode($json);
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$url = ManiaControl::URL_WEBSERVICE . 'errorreport?error=' . urlencode($info);
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$success = FileUtil::loadFile($url);
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$success = json_decode($success);
if ($success) {
logMessage('Error successfully reported!');
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} else {
logMessage('Error-Report failed!');
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}
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}
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if ($this->shouldStopExecution($errorNumber)) {
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logMessage('Stopping Execution...');
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exit();
}
return false;
}
/**
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* Get the Prefix for the given Error Level
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*
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* @param int $errorLevel
* @return string
*/
public function getErrorTag($errorLevel) {
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switch ($errorLevel) {
case E_NOTICE:
return '[PHP NOTICE]';
case E_WARNING:
return '[PHP WARNING]';
case E_ERROR:
return '[PHP ERROR]';
case E_CORE_ERROR:
return '[PHP CORE ERROR]';
case E_COMPILE_ERROR:
return '[PHP COMPILE ERROR]';
case E_RECOVERABLE_ERROR:
return '[PHP RECOVERABLE ERROR]';
case E_USER_NOTICE:
return '[ManiaControl NOTICE]';
case E_USER_WARNING:
return '[ManiaControl WARNING]';
case E_USER_ERROR:
return '[ManiaControl ERROR]';
case self::MC_DEBUG_NOTICE:
return '[ManiaControl DEBUG]';
}
return "[PHP ERROR '{$errorLevel}']";
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}
/**
* Get the Source Class via the Error File
*
* @param string $errorFile
* @return string
*/
private function getSourceClass($errorFile) {
if (!$errorFile) {
return null;
}
$filePath = substr($errorFile, strlen(ManiaControlDir));
$filePath = str_replace('plugins' . DIRECTORY_SEPARATOR, '', $filePath);
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$filePath = str_replace('core' . DIRECTORY_SEPARATOR, 'ManiaControl\\', $filePath);
$className = str_replace('.php', '', $filePath);
$className = str_replace(DIRECTORY_SEPARATOR, '\\', $className);
if (!class_exists($className, false)) {
return null;
}
return $className;
}
/**
* Check if the given Error Number is a User Error
*
* @param int $errorNumber
* @return bool
*/
private function isUserErrorNumber($errorNumber) {
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return ($errorNumber & E_USER_ERROR || $errorNumber & E_USER_WARNING || $errorNumber & E_USER_NOTICE || $errorNumber & E_USER_DEPRECATED);
}
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/**
* Test if ManiaControl should stop its Execution
*
* @param int $errorNumber
* @return bool
*/
private function shouldStopExecution($errorNumber) {
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return ($errorNumber & E_ERROR || $errorNumber & E_USER_ERROR || $errorNumber & E_FATAL);
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}
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/**
* Check if the Shutdown was caused by a Fatal Error and report it
*/
public function handleShutdown() {
$error = error_get_last();
if ($error) {
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$this->handleError($error['type'], $error['message'], $error['file'], $error['line']);
}
}
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}