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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
+ */
+
+/**
+ * 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;
+
+ /**
+ * Constructor
+ *
+ * @param int $httpCode HTTP status code to send to the client
+ * @param string|Message $content Content of the message
+ * @param string|Message $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;
+ }
+
+ /**
+ * Returns the HTTP status code supplied to the constructor.
+ *
+ * @return int
+ */
+ public function getStatusCode() {
+ return $this->httpCode;
+ }
+
+ /**
+ * Report the HTTP error.
+ * Sends the appropriate HTTP status code and outputs an
+ * HTML page with an error message.
+ */
+ public function report() {
+ $httpMessage = HttpStatus::getMessage( $this->httpCode );
+
+ header( "Status: {$this->httpCode} {$httpMessage}", true, $this->httpCode );
+ header( 'Content-type: text/html; charset=utf-8' );
+
+ print $this->getHTML();
+ }
+
+ /**
+ * 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 ) {
+ $header = HttpStatus::getMessage( $this->httpCode );
+ } elseif ( $this->header instanceof Message ) {
+ $header = $this->header->escaped();
+ } else {
+ $header = htmlspecialchars( $this->header );
+ }
+
+ if ( $this->content instanceof Message ) {
+ $content = $this->content->escaped();
+ } else {
+ $content = htmlspecialchars( $this->content );
+ }
+
+ return "<!DOCTYPE html>\n" .
+ "<html><head><title>$header</title></head>\n" .
+ "<body><h1>$header</h1><p>$content</p></body></html>\n";
+ }
+}