9 */ |
9 */ |
10 |
10 |
11 define( 'SHORTINIT', true ); |
11 define( 'SHORTINIT', true ); |
12 require_once( dirname( dirname( __FILE__ ) ) . '/wp-load.php' ); |
12 require_once( dirname( dirname( __FILE__ ) ) . '/wp-load.php' ); |
13 |
13 |
14 if ( !is_multisite() ) |
14 if ( ! is_multisite() ) { |
15 die( 'Multisite support not enabled' ); |
15 die( 'Multisite support not enabled' ); |
|
16 } |
16 |
17 |
17 ms_file_constants(); |
18 ms_file_constants(); |
18 |
19 |
19 error_reporting( 0 ); |
20 error_reporting( 0 ); |
20 |
21 |
21 if ( $current_blog->archived == '1' || $current_blog->spam == '1' || $current_blog->deleted == '1' ) { |
22 if ( $current_blog->archived == '1' || $current_blog->spam == '1' || $current_blog->deleted == '1' ) { |
22 status_header( 404 ); |
23 status_header( 404 ); |
23 die( '404 — File not found.' ); |
24 die( '404 — File not found.' ); |
24 } |
25 } |
25 |
26 |
26 $file = rtrim( BLOGUPLOADDIR, '/' ) . '/' . str_replace( '..', '', $_GET[ 'file' ] ); |
27 $file = rtrim( BLOGUPLOADDIR, '/' ) . '/' . str_replace( '..', '', $_GET['file'] ); |
27 if ( !is_file( $file ) ) { |
28 if ( ! is_file( $file ) ) { |
28 status_header( 404 ); |
29 status_header( 404 ); |
29 die( '404 — File not found.' ); |
30 die( '404 — File not found.' ); |
30 } |
31 } |
31 |
32 |
32 $mime = wp_check_filetype( $file ); |
33 $mime = wp_check_filetype( $file ); |
33 if ( false === $mime[ 'type' ] && function_exists( 'mime_content_type' ) ) |
34 if ( false === $mime['type'] && function_exists( 'mime_content_type' ) ) { |
34 $mime[ 'type' ] = mime_content_type( $file ); |
35 $mime['type'] = mime_content_type( $file ); |
|
36 } |
35 |
37 |
36 if ( $mime[ 'type' ] ) |
38 if ( $mime['type'] ) { |
37 $mimetype = $mime[ 'type' ]; |
39 $mimetype = $mime['type']; |
38 else |
40 } else { |
39 $mimetype = 'image/' . substr( $file, strrpos( $file, '.' ) + 1 ); |
41 $mimetype = 'image/' . substr( $file, strrpos( $file, '.' ) + 1 ); |
|
42 } |
40 |
43 |
41 header( 'Content-Type: ' . $mimetype ); // always send this |
44 header( 'Content-Type: ' . $mimetype ); // always send this |
42 if ( false === strpos( $_SERVER['SERVER_SOFTWARE'], 'Microsoft-IIS' ) ) |
45 if ( false === strpos( $_SERVER['SERVER_SOFTWARE'], 'Microsoft-IIS' ) ) { |
43 header( 'Content-Length: ' . filesize( $file ) ); |
46 header( 'Content-Length: ' . filesize( $file ) ); |
|
47 } |
44 |
48 |
45 // Optional support for X-Sendfile and X-Accel-Redirect |
49 // Optional support for X-Sendfile and X-Accel-Redirect |
46 if ( WPMU_ACCEL_REDIRECT ) { |
50 if ( WPMU_ACCEL_REDIRECT ) { |
47 header( 'X-Accel-Redirect: ' . str_replace( WP_CONTENT_DIR, '', $file ) ); |
51 header( 'X-Accel-Redirect: ' . str_replace( WP_CONTENT_DIR, '', $file ) ); |
48 exit; |
52 exit; |
50 header( 'X-Sendfile: ' . $file ); |
54 header( 'X-Sendfile: ' . $file ); |
51 exit; |
55 exit; |
52 } |
56 } |
53 |
57 |
54 $last_modified = gmdate( 'D, d M Y H:i:s', filemtime( $file ) ); |
58 $last_modified = gmdate( 'D, d M Y H:i:s', filemtime( $file ) ); |
55 $etag = '"' . md5( $last_modified ) . '"'; |
59 $etag = '"' . md5( $last_modified ) . '"'; |
56 header( "Last-Modified: $last_modified GMT" ); |
60 header( "Last-Modified: $last_modified GMT" ); |
57 header( 'ETag: ' . $etag ); |
61 header( 'ETag: ' . $etag ); |
58 header( 'Expires: ' . gmdate( 'D, d M Y H:i:s', time() + 100000000 ) . ' GMT' ); |
62 header( 'Expires: ' . gmdate( 'D, d M Y H:i:s', time() + 100000000 ) . ' GMT' ); |
59 |
63 |
60 // Support for Conditional GET - use stripslashes to avoid formatting.php dependency |
64 // Support for Conditional GET - use stripslashes to avoid formatting.php dependency |
61 $client_etag = isset( $_SERVER['HTTP_IF_NONE_MATCH'] ) ? stripslashes( $_SERVER['HTTP_IF_NONE_MATCH'] ) : false; |
65 $client_etag = isset( $_SERVER['HTTP_IF_NONE_MATCH'] ) ? stripslashes( $_SERVER['HTTP_IF_NONE_MATCH'] ) : false; |
62 |
66 |
63 if ( ! isset( $_SERVER['HTTP_IF_MODIFIED_SINCE'] ) ) |
67 if ( ! isset( $_SERVER['HTTP_IF_MODIFIED_SINCE'] ) ) { |
64 $_SERVER['HTTP_IF_MODIFIED_SINCE'] = false; |
68 $_SERVER['HTTP_IF_MODIFIED_SINCE'] = false; |
|
69 } |
65 |
70 |
66 $client_last_modified = trim( $_SERVER['HTTP_IF_MODIFIED_SINCE'] ); |
71 $client_last_modified = trim( $_SERVER['HTTP_IF_MODIFIED_SINCE'] ); |
67 // If string is empty, return 0. If not, attempt to parse into a timestamp |
72 // If string is empty, return 0. If not, attempt to parse into a timestamp |
68 $client_modified_timestamp = $client_last_modified ? strtotime( $client_last_modified ) : 0; |
73 $client_modified_timestamp = $client_last_modified ? strtotime( $client_last_modified ) : 0; |
69 |
74 |
70 // Make a timestamp for our most recent modification... |
75 // Make a timestamp for our most recent modification... |
71 $modified_timestamp = strtotime($last_modified); |
76 $modified_timestamp = strtotime( $last_modified ); |
72 |
77 |
73 if ( ( $client_last_modified && $client_etag ) |
78 if ( ( $client_last_modified && $client_etag ) |
74 ? ( ( $client_modified_timestamp >= $modified_timestamp) && ( $client_etag == $etag ) ) |
79 ? ( ( $client_modified_timestamp >= $modified_timestamp ) && ( $client_etag == $etag ) ) |
75 : ( ( $client_modified_timestamp >= $modified_timestamp) || ( $client_etag == $etag ) ) |
80 : ( ( $client_modified_timestamp >= $modified_timestamp ) || ( $client_etag == $etag ) ) |
76 ) { |
81 ) { |
77 status_header( 304 ); |
82 status_header( 304 ); |
78 exit; |
83 exit; |
79 } |
84 } |
80 |
85 |