1 files changed, 115 insertions, 0 deletions
diff --git a/www/wiki/includes/libs/HttpStatus.php b/www/wiki/includes/libs/HttpStatus.php
new file mode 100644
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+++ b/www/wiki/includes/libs/HttpStatus.php
@@ -0,0 +1,115 @@
+<?php
+/**
+ * List of HTTP status codes.
+ *
+ * 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
+ */
+
+/**
+ * @todo document
+ */
+class HttpStatus {
+
+	/**
+	 * Get the message associated with an HTTP response status code
+	 *
+	 * @param int $code Status code
+	 * @return string|null Message, or null if $code is not known
+	 */
+	public static function getMessage( $code ) {
+		static $statusMessage = [
+			100 => 'Continue',
+			101 => 'Switching Protocols',
+			102 => 'Processing',
+			200 => 'OK',
+			201 => 'Created',
+			202 => 'Accepted',
+			203 => 'Non-Authoritative Information',
+			204 => 'No Content',
+			205 => 'Reset Content',
+			206 => 'Partial Content',
+			207 => 'Multi-Status',
+			300 => 'Multiple Choices',
+			301 => 'Moved Permanently',
+			302 => 'Found',
+			303 => 'See Other',
+			304 => 'Not Modified',
+			305 => 'Use Proxy',
+			307 => 'Temporary Redirect',
+			400 => 'Bad Request',
+			401 => 'Unauthorized',
+			402 => 'Payment Required',
+			403 => 'Forbidden',
+			404 => 'Not Found',
+			405 => 'Method Not Allowed',
+			406 => 'Not Acceptable',
+			407 => 'Proxy Authentication Required',
+			408 => 'Request Timeout',
+			409 => 'Conflict',
+			410 => 'Gone',
+			411 => 'Length Required',
+			412 => 'Precondition Failed',
+			413 => 'Request Entity Too Large',
+			414 => 'Request-URI Too Large',
+			415 => 'Unsupported Media Type',
+			416 => 'Request Range Not Satisfiable',
+			417 => 'Expectation Failed',
+			422 => 'Unprocessable Entity',
+			423 => 'Locked',
+			424 => 'Failed Dependency',
+			428 => 'Precondition Required',
+			429 => 'Too Many Requests',
+			431 => 'Request Header Fields Too Large',
+			500 => 'Internal Server Error',
+			501 => 'Not Implemented',
+			502 => 'Bad Gateway',
+			503 => 'Service Unavailable',
+			504 => 'Gateway Timeout',
+			505 => 'HTTP Version Not Supported',
+			507 => 'Insufficient Storage',
+			511 => 'Network Authentication Required',
+		];
+		return isset( $statusMessage[$code] ) ? $statusMessage[$code] : null;
+	}
+
+	/**
+	 * Output an HTTP status code header
+	 *
+	 * @since 1.26
+	 * @param int $code Status code
+	 */
+	public static function header( $code ) {
+		static $version = null;
+		$message = self::getMessage( $code );
+		if ( $message === null ) {
+			trigger_error( "Unknown HTTP status code $code", E_USER_WARNING );
+			return;
+		}
+
+		MediaWiki\HeaderCallback::warnIfHeadersSent();
+		if ( $version === null ) {
+			$version = isset( $_SERVER['SERVER_PROTOCOL'] ) &&
+				$_SERVER['SERVER_PROTOCOL'] === 'HTTP/1.0' ?
+					'1.0' :
+					'1.1';
+		}
+
+		header( "HTTP/$version $code $message" );
+	}
+
+}