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<?php |
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/****************************************************************************** |
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* Wikipedia Account Creation Assistance tool * |
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* * |
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* All code in this file is released into the public domain by the ACC * |
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* Development Team. Please see team.json for a list of contributors. * |
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******************************************************************************/ |
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namespace Waca; |
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use ErrorException; |
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use Throwable; |
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class ExceptionHandler |
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{ |
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/** |
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* Global exception handler |
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* |
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* Smarty would be nice to use, but it COULD BE smarty that throws the errors. |
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* Let's build something ourselves, and hope it works. |
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* |
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* @param $exception |
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* |
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* @category Security-Critical - has the potential to leak data when exception is thrown. |
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*/ |
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public static function exceptionHandler(Throwable $exception) |
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{ |
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/** @global $siteConfiguration SiteConfiguration */ |
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global $siteConfiguration; |
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$errorDocument = <<<HTML |
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<!DOCTYPE html> |
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<html lang="en"><head> |
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<meta charset="utf-8"> |
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<title>Oops! Something went wrong!</title> |
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<meta name="viewport" content="width=device-width, initial-scale=1.0"> |
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<link href="{$siteConfiguration->getBaseUrl()}/resources/generated/bootstrap-main.css" rel="stylesheet"> |
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<style> |
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body { |
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padding-top: 60px; |
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} |
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</style> |
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</head><body><div class="container"> |
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<h1>Oops! Something went wrong!</h1> |
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<p>We'll work on fixing this for you, so why not come back later?</p> |
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<p class="muted">If our trained monkeys ask, tell them this error ID: <code>$1$</code></p> |
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$2$ |
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</div></body></html> |
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HTML; |
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list($errorData, $errorId) = self::logExceptionToDisk($exception, $siteConfiguration, true); |
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// clear and discard any content that's been saved to the output buffer |
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if (ob_get_level() > 0) { |
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ob_end_clean(); |
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} |
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// push error ID into the document. |
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$message = str_replace('$1$', $errorId, $errorDocument); |
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if ($siteConfiguration->getDebuggingTraceEnabled()) { |
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ob_start(); |
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var_dump($errorData); |
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$textErrorData = ob_get_contents(); |
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ob_end_clean(); |
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$message = str_replace('$2$', $textErrorData, $message); |
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} |
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else { |
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$message = str_replace('$2$', "", $message); |
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} |
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// While we *shouldn't* have sent headers by now due to the output buffering, PHPUnit does weird things. |
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// This is "only" needed for the tests, but it's a good idea to wrap this anyway. |
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if (!headers_sent()) { |
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header('HTTP/1.1 500 Internal Server Error'); |
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} |
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// output the document |
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print $message; |
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} |
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/** |
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* @param int $errorSeverity The severity level of the exception. |
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* @param string $errorMessage The Exception message to throw. |
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* @param string $errorFile The filename where the exception is thrown. |
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* @param int $errorLine The line number where the exception is thrown. |
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* |
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* @throws ErrorException |
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*/ |
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public static function errorHandler($errorSeverity, $errorMessage, $errorFile, $errorLine) |
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{ |
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// call into the main exception handler above |
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throw new ErrorException($errorMessage, 0, $errorSeverity, $errorFile, $errorLine); |
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} |
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/** |
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* @param Throwable $exception |
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* |
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* @return null|array |
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*/ |
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public static function getExceptionData($exception) |
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{ |
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if ($exception == null) { |
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return null; |
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} |
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$array = array( |
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'exception' => get_class($exception), |
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'message' => $exception->getMessage(), |
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'stack' => $exception->getTraceAsString(), |
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); |
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$array['previous'] = self::getExceptionData($exception->getPrevious()); |
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return $array; |
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} |
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/** |
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* @param Throwable $exception |
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* @param SiteConfiguration $siteConfiguration |
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* @param bool $fromGlobalHandler |
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* |
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* @return array |
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*/ |
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public static function logExceptionToDisk( |
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Throwable $exception, |
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SiteConfiguration $siteConfiguration, |
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bool $fromGlobalHandler = false |
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): array { |
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$errorData = self::getExceptionData($exception); |
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$errorData['server'] = $_SERVER; |
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$errorData['get'] = $_GET; |
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$errorData['post'] = $_POST; |
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if ($fromGlobalHandler) { |
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$errorData['globalHandler'] = true; |
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} |
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else { |
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$errorData['globalHandler'] = false; |
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} |
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$state = serialize($errorData); |
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$errorId = sha1($state); |
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// Save the error for later analysis |
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file_put_contents($siteConfiguration->getErrorLog() . '/' . $errorId . '.log', $state); |
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return array($errorData, $errorId); |
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} |
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} |
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enwikipedia-acc /
waca
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