<?php
+/**
+ * Functions to be used with PHP's output buffer
+ *
+ * @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() {
- /// @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() ) {
return $s;
}
- if( isset( $_SERVER['HTTP_ACCEPT_ENCODING'] ) ) {
- $tokens = preg_split( '/[,; ]/', $_SERVER['HTTP_ACCEPT_ENCODING'] );
- if ( in_array( 'gzip', $tokens ) ) {
- header( 'Content-Encoding: gzip' );
- $s = gzencode( $s, 6 );
- }
+ if( wfClientAcceptsGzip() ) {
+ header( 'Content-Encoding: gzip' );
+ $s = gzencode( $s, 6 );
}
// Set vary header if it hasn't been set already
}
if ( !$foundVary ) {
header( 'Vary: Accept-Encoding' );
- header( 'X-Vary-Options: Accept-Encoding;list-contains=gzip' );
+ global $wgUseXVO;
+ if ( $wgUseXVO ) {
+ header( 'X-Vary-Options: Accept-Encoding;list-contains=gzip' );
+ }
}
return $s;
}
/**
* 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 ) {
$out = <<<EOT
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en" dir="ltr">
+<html xmlns="http://www.w3.org/1999/xhtml" lang="en" dir="ltr">
<head>
<title>HTML validation error</title>
<style>