45c254ac94
git-svn-id: https://develop.svn.wordpress.org/trunk@12926 602fd350-edb4-49c9-b593-d223f7449a82
131 lines
4.1 KiB
PHP
Executable File
131 lines
4.1 KiB
PHP
Executable File
<?php
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if ( !defined( 'SHORTINIT' ) ) {
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define( 'SHORTINIT', true ); // this prevents most of WP from being loaded
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require_once( dirname( dirname( __FILE__) ) . '/wp-load.php' ); // absolute includes are faster
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}
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if ( $current_blog->archived == '1' || $current_blog->spam == '1' || $current_blog->deleted == '1' ) {
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status_header( 404 );
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die('404 — File not found.');
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}
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if ( !function_exists('wp_check_filetype') ) :
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function wp_check_filetype($filename, $mimes = null) {
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// Accepted MIME types are set here as PCRE unless provided.
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$mimes = is_array($mimes) ? $mimes : array (
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'jpg|jpeg|jpe' => 'image/jpeg',
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'gif' => 'image/gif',
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'png' => 'image/png',
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'bmp' => 'image/bmp',
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'tif|tiff' => 'image/tiff',
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'ico' => 'image/x-icon',
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'asf|asx|wax|wmv|wmx' => 'video/asf',
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'avi' => 'video/avi',
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'mov|qt' => 'video/quicktime',
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'mpeg|mpg|mpe' => 'video/mpeg',
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'txt|c|cc|h' => 'text/plain',
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'rtx' => 'text/richtext',
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'css' => 'text/css',
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'htm|html' => 'text/html',
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'mp3|mp4' => 'audio/mpeg',
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'ra|ram' => 'audio/x-realaudio',
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'wav' => 'audio/wav',
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'ogg' => 'audio/ogg',
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'mid|midi' => 'audio/midi',
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'wma' => 'audio/wma',
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'rtf' => 'application/rtf',
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'js' => 'application/javascript',
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'pdf' => 'application/pdf',
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'doc' => 'application/msword',
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'pot|pps|ppt' => 'application/vnd.ms-powerpoint',
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'wri' => 'application/vnd.ms-write',
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'xla|xls|xlt|xlw' => 'application/vnd.ms-excel',
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'mdb' => 'application/vnd.ms-access',
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'mpp' => 'application/vnd.ms-project',
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'swf' => 'application/x-shockwave-flash',
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'class' => 'application/java',
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'tar' => 'application/x-tar',
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'zip' => 'application/zip',
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'gz|gzip' => 'application/x-gzip',
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'exe' => 'application/x-msdownload'
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);
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$type = false;
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$ext = false;
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foreach ( (array)$mimes as $ext_preg => $mime_match ) {
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$ext_preg = '!\.(' . $ext_preg . ')$!i';
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if ( preg_match($ext_preg, $filename, $ext_matches) ) {
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$type = $mime_match;
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$ext = $ext_matches[1];
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break;
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}
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}
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return compact('ext', 'type');
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}
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endif;
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$file = BLOGUPLOADDIR . str_replace( '..', '', $_GET[ 'file' ] );
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if ( !is_file( $file ) ) {
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status_header( 404 );
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die('404 — File not found.');
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}
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$mime = wp_check_filetype( $_SERVER[ 'REQUEST_URI' ] );
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if( $mime[ 'type' ] === false && function_exists( 'mime_content_type' ) )
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$mime[ 'type' ] = mime_content_type( $file );
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if( $mime[ 'type' ] != false ) {
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$mimetype = $mime[ 'type' ];
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} else {
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$ext = substr( $_SERVER[ 'REQUEST_URI' ], strrpos( $_SERVER[ 'REQUEST_URI' ], '.' ) + 1 );
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$mimetype = "image/$ext";
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}
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@header( 'Content-type: ' . $mimetype ); // always send this
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if ( false === strpos( $_SERVER['SERVER_SOFTWARE'], 'Microsoft-IIS' ) )
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@header( 'Content-Length: ' . filesize( $file ) );
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// Optional support for X-Sendfile and X-Accel-Redirect
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if ( defined('WPMU_ACCEL_REDIRECT') && WPMU_ACCEL_REDIRECT ) {
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@header( 'X-Accel-Redirect: ' . str_replace( WP_CONTENT_DIR, '', $file ) );
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exit;
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} elseif ( defined('WPMU_SENDFILE') && WPMU_SENDFILE ) {
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@header( 'X-Sendfile: ' . $file );
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exit;
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}
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$last_modified = gmdate('D, d M Y H:i:s', filemtime( $file ));
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$etag = '"' . md5($last_modified) . '"';
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@header( "Last-Modified: $last_modified GMT" );
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@header( 'ETag: ' . $etag );
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@header( 'Expires: ' . gmdate('D, d M Y H:i:s', time() + 100000000) . ' GMT' );
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// Support for Conditional GET
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if (isset($_SERVER['HTTP_IF_NONE_MATCH']))
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$client_etag = stripslashes($_SERVER['HTTP_IF_NONE_MATCH']);
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else
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$client_etag = false;
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if( !isset( $_SERVER['HTTP_IF_MODIFIED_SINCE'] ) )
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$_SERVER['HTTP_IF_MODIFIED_SINCE'] = false;
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$client_last_modified = trim( $_SERVER['HTTP_IF_MODIFIED_SINCE']);
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// If string is empty, return 0. If not, attempt to parse into a timestamp
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$client_modified_timestamp = $client_last_modified ? strtotime($client_last_modified) : 0;
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// Make a timestamp for our most recent modification...
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$modified_timestamp = strtotime($last_modified);
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if ( ($client_last_modified && $client_etag) ?
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(($client_modified_timestamp >= $modified_timestamp) && ($client_etag == $etag)) :
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(($client_modified_timestamp >= $modified_timestamp) || ($client_etag == $etag)) ) {
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status_header( 304 );
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exit;
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}
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// If we made it this far, just serve the file
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readfile( $file );
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?>
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