exception.php
来自「php 开发的内容管理系统」· PHP 代码 · 共 194 行
PHP
194 行
<?phpclass MWException extends Exception{ function useOutputPage() { return !empty( $GLOBALS['wgFullyInitialised'] ); } function useMessageCache() { global $wgLang; return is_object( $wgLang ); } function msg( $key, $fallback /*[, params...] */ ) { $args = array_slice( func_get_args(), 2 ); if ( $this->useMessageCache() ) { return wfMsgReal( $key, $args ); } else { return wfMsgReplaceArgs( $fallback, $args ); } } function getHTML() { return '<p>' . htmlspecialchars( $this->getMessage() ) . '</p><p>Backtrace:</p><p>' . nl2br( htmlspecialchars( $this->getTraceAsString() ) ) . "</p>\n"; } function getText() { return $this->getMessage() . "\nBacktrace:\n" . $this->getTraceAsString() . "\n"; } function getPageTitle() { if ( $this->useMessageCache() ) { return wfMsg( 'internalerror' ); } else { global $wgSitename; return "$wgSitename error"; } } function reportHTML() { global $wgOut; if ( $this->useOutputPage() ) { $wgOut->setPageTitle( $this->getPageTitle() ); $wgOut->setRobotpolicy( "noindex,nofollow" ); $wgOut->setArticleRelated( false ); $wgOut->enableClientCache( false ); $wgOut->redirect( '' ); $wgOut->clearHTML(); $wgOut->addHTML( $this->getHTML() ); $wgOut->output(); } else { echo $this->htmlHeader(); echo $this->getHTML(); echo $this->htmlFooter(); } } function reportText() { echo $this->getText(); } function report() { global $wgCommandLineMode; if ( $wgCommandLineMode ) { $this->reportText(); } else { $this->reportHTML(); } } function htmlHeader() { global $wgLogo, $wgSitename, $wgOutputEncoding; if ( !headers_sent() ) { header( 'HTTP/1.0 500 Internal Server Error' ); header( 'Content-type: text/html; charset='.$wgOutputEncoding ); /* Don't cache error pages! They cause no end of trouble... */ header( 'Cache-control: none' ); header( 'Pragma: nocache' ); } $title = $this->getPageTitle(); echo "<html> <head> <title>$title</title> </head> <body> <h1><img src='$wgLogo' style='float:left;margin-right:1em' alt=''>$title</h1> "; } function htmlFooter() { echo "</body></html>"; } }/** * Exception class which takes an HTML error message, and does not * produce a backtrace. Replacement for OutputPage::fatalError(). */class FatalError extends MWException { function getHTML() { return $this->getMessage(); } function getText() { return $this->getMessage(); }}class ErrorPageError extends MWException { public $title, $msg; /** * Note: these arguments are keys into wfMsg(), not text! */ function __construct( $title, $msg ) { $this->title = $title; $this->msg = $msg; parent::__construct( wfMsg( $msg ) ); } function report() { global $wgOut; $wgOut->showErrorPage( $this->title, $this->msg ); $wgOut->output(); }}/** * Install an exception handler for MediaWiki exception types. */function wfInstallExceptionHandler() { set_exception_handler( 'wfExceptionHandler' );}/** * Report an exception to the user */function wfReportException( Exception $e ) { if ( is_a( $e, 'MWException' ) ) { try { $e->report(); } catch ( Exception $e2 ) { // Exception occurred from within exception handler // Show a simpler error message for the original exception, // don't try to invoke report() $message = "MediaWiki internal error.\n\n" . "Original exception: " . $e->__toString() . "\n\nException caught inside exception handler: " . $e2->__toString() . "\n"; if ( !empty( $GLOBALS['wgCommandLineMode'] ) ) { echo $message; } else { echo nl2br( htmlspecialchars( $message ) ). "\n"; } } } else { echo $e->__toString(); }}/** * Exception handler which simulates the appropriate catch() handling: * * try { * ... * } catch ( MWException $e ) { * $e->report(); * } catch ( Exception $e ) { * echo $e->__toString(); * } */function wfExceptionHandler( $e ) { global $wgFullyInitialised; wfReportException( $e ); // Final cleanup, similar to wfErrorExit() if ( $wgFullyInitialised ) { try { wfProfileClose(); logProfilingData(); // uses $wgRequest, hence the $wgFullyInitialised condition } catch ( Exception $e ) {} } // Exit value should be nonzero for the benefit of shell jobs exit( 1 );}?>⌨️ 快捷键说明
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