<?php
+/**
+ * Functions to be used with PHP's output buffer.
+ *
+ * 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
+ */
/**
* Standard output handler for use with ob_start
+ *
+ * @param $s string
+ *
+ * @return string
*/
function wfOutputHandler( $s ) {
global $wgDisableOutputCompression, $wgValidateAllHtml;
* the currently-requested URL.
* This isn't on WebRequest because we need it when things aren't initialized
* @private
+ *
+ * @return string
*/
function wfRequestExtension() {
- /// @todo Fixme: this sort of dupes some code in WebRequest::getRequestUrl()
+ /// @todo FIXME: this sort of dupes some code in WebRequest::getRequestUrl()
if( isset( $_SERVER['REQUEST_URI'] ) ) {
// Strip the query string...
list( $path ) = explode( '?', $_SERVER['REQUEST_URI'], 2 );
/**
* Handler that compresses data with gzip if allowed by the Accept header.
* Unlike ob_gzhandler, it works for HEAD requests too.
+ *
+ * @param $s string
+ *
+ * @return string
*/
function wfGzipHandler( $s ) {
- if( !function_exists( 'gzencode' ) || headers_sent() ) {
+ if( !function_exists( 'gzencode' ) ) {
+ wfDebug( __FUNCTION__ . "() skipping compression (gzencode unavaible)\n" );
+ return $s;
+ }
+ if( headers_sent() ) {
+ wfDebug( __FUNCTION__ . "() skipping compression (headers already sent)\n" );
return $s;
}
}
if( wfClientAcceptsGzip() ) {
+ wfDebug( __FUNCTION__ . "() is compressing output\n" );
header( 'Content-Encoding: gzip' );
$s = gzencode( $s, 6 );
}
/**
* Mangle flash policy tags which open up the site to XSS attacks.
+ *
+ * @param $s string
+ *
+ * @return string
*/
function wfMangleFlashPolicy( $s ) {
# Avoid weird excessive memory usage in PCRE on big articles
/**
* Add a Content-Length header if possible. This makes it cooperate with squid better.
+ *
+ * @param $length int
*/
function wfDoContentLength( $length ) {
if ( !headers_sent() && $_SERVER['SERVER_PROTOCOL'] == 'HTTP/1.0' ) {
/**
* Replace the output with an error if the HTML is not valid
+ *
+ * @param $s string
+ *
+ * @return string
*/
function wfHtmlValidationHandler( $s ) {