1 files changed, 129 insertions, 0 deletions
diff --git a/www/wiki/includes/exception/HttpError.php b/www/wiki/includes/exception/HttpError.php
new file mode 100644
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+++ b/www/wiki/includes/exception/HttpError.php
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+<?php
+/**
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ */
+
+use MediaWiki\Logger\LoggerFactory;
+
+/**
+ * Show an error that looks like an HTTP server error.
+ * Replacement for wfHttpError().
+ *
+ * @since 1.19
+ * @ingroup Exception
+ */
+class HttpError extends MWException {
+	private $httpCode, $header, $content;
+
+	/**
+	 * @param int $httpCode HTTP status code to send to the client
+	 * @param string|Message $content Content of the message
+	 * @param string|Message|null $header Content of the header (\<title\> and \<h1\>)
+	 */
+	public function __construct( $httpCode, $content, $header = null ) {
+		parent::__construct( $content );
+		$this->httpCode = (int)$httpCode;
+		$this->header = $header;
+		$this->content = $content;
+	}
+
+	/**
+	 * We don't want the default exception logging as we got our own logging set
+	 * up in self::report.
+	 *
+	 * @see MWException::isLoggable
+	 *
+	 * @since 1.24
+	 * @return bool
+	 */
+	public function isLoggable() {
+		return false;
+	}
+
+	/**
+	 * Returns the HTTP status code supplied to the constructor.
+	 *
+	 * @return int
+	 */
+	public function getStatusCode() {
+		return $this->httpCode;
+	}
+
+	/**
+	 * Report and log the HTTP error.
+	 * Sends the appropriate HTTP status code and outputs an
+	 * HTML page with an error message.
+	 */
+	public function report() {
+		$this->doLog();
+
+		HttpStatus::header( $this->httpCode );
+		header( 'Content-type: text/html; charset=utf-8' );
+
+		print $this->getHTML();
+	}
+
+	private function doLog() {
+		$logger = LoggerFactory::getInstance( 'HttpError' );
+		$content = $this->content;
+
+		if ( $content instanceof Message ) {
+			$content = $content->text();
+		}
+
+		$context = [
+			'file' => $this->getFile(),
+			'line' => $this->getLine(),
+			'http_code' => $this->httpCode,
+		];
+
+		$logMsg = "$content ({http_code}) from {file}:{line}";
+
+		if ( $this->getStatusCode() < 500 ) {
+			$logger->info( $logMsg, $context );
+		} else {
+			$logger->error( $logMsg, $context );
+		}
+	}
+
+	/**
+	 * Returns HTML for reporting the HTTP error.
+	 * This will be a minimal but complete HTML document.
+	 *
+	 * @return string HTML
+	 */
+	public function getHTML() {
+		if ( $this->header === null ) {
+			$titleHtml = htmlspecialchars( HttpStatus::getMessage( $this->httpCode ) );
+		} elseif ( $this->header instanceof Message ) {
+			$titleHtml = $this->header->escaped();
+		} else {
+			$titleHtml = htmlspecialchars( $this->header );
+		}
+
+		if ( $this->content instanceof Message ) {
+			$contentHtml = $this->content->escaped();
+		} else {
+			$contentHtml = nl2br( htmlspecialchars( $this->content ) );
+		}
+
+		return "<!DOCTYPE html>\n" .
+		"<html><head><title>$titleHtml</title></head>\n" .
+		"<body><h1>$titleHtml</h1><p>$contentHtml</p></body></html>\n";
+	}
+}