diff options
Diffstat (limited to 'inc/httputils.php')
| -rw-r--r-- | inc/httputils.php | 122 |
1 files changed, 61 insertions, 61 deletions
diff --git a/inc/httputils.php b/inc/httputils.php index c55e9ab0d..ed5d6dfd5 100644 --- a/inc/httputils.php +++ b/inc/httputils.php @@ -19,45 +19,45 @@ define('HTTP_CHUNK_SIZE',16*1024); * @returns void or exits with previously header() commands executed */ function http_conditionalRequest($timestamp){ - // A PHP implementation of conditional get, see - // http://fishbowl.pastiche.org/archives/001132.html - $last_modified = substr(gmdate('r', $timestamp), 0, -5).'GMT'; - $etag = '"'.md5($last_modified).'"'; - // Send the headers - header("Last-Modified: $last_modified"); - header("ETag: $etag"); - // See if the client has provided the required headers - if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE'])){ - $if_modified_since = stripslashes($_SERVER['HTTP_IF_MODIFIED_SINCE']); - }else{ - $if_modified_since = false; - } - - if (isset($_SERVER['HTTP_IF_NONE_MATCH'])){ - $if_none_match = stripslashes($_SERVER['HTTP_IF_NONE_MATCH']); - }else{ - $if_none_match = false; - } - - if (!$if_modified_since && !$if_none_match){ - return; - } - - // At least one of the headers is there - check them - if ($if_none_match && $if_none_match != $etag) { - return; // etag is there but doesn't match - } - - if ($if_modified_since && $if_modified_since != $last_modified) { - return; // if-modified-since is there but doesn't match - } - - // Nothing has changed since their last request - serve a 304 and exit - header('HTTP/1.0 304 Not Modified'); - - // don't produce output, even if compression is on - ob_end_clean(); - exit; + // A PHP implementation of conditional get, see + // http://fishbowl.pastiche.org/archives/001132.html + $last_modified = substr(gmdate('r', $timestamp), 0, -5).'GMT'; + $etag = '"'.md5($last_modified).'"'; + // Send the headers + header("Last-Modified: $last_modified"); + header("ETag: $etag"); + // See if the client has provided the required headers + if (isset($_SERVER['HTTP_IF_MODIFIED_SINCE'])){ + $if_modified_since = stripslashes($_SERVER['HTTP_IF_MODIFIED_SINCE']); + }else{ + $if_modified_since = false; + } + + if (isset($_SERVER['HTTP_IF_NONE_MATCH'])){ + $if_none_match = stripslashes($_SERVER['HTTP_IF_NONE_MATCH']); + }else{ + $if_none_match = false; + } + + if (!$if_modified_since && !$if_none_match){ + return; + } + + // At least one of the headers is there - check them + if ($if_none_match && $if_none_match != $etag) { + return; // etag is there but doesn't match + } + + if ($if_modified_since && $if_modified_since != $last_modified) { + return; // if-modified-since is there but doesn't match + } + + // Nothing has changed since their last request - serve a 304 and exit + header('HTTP/1.0 304 Not Modified'); + + // don't produce output, even if compression is on + ob_end_clean(); + exit; } /** @@ -67,24 +67,24 @@ function http_conditionalRequest($timestamp){ * @returns void or exits with previously header() commands executed */ function http_sendfile($file) { - global $conf; - - //use x-sendfile header to pass the delivery to compatible webservers - if($conf['xsendfile'] == 1){ - header("X-LIGHTTPD-send-file: $file"); - ob_end_clean(); - exit; - }elseif($conf['xsendfile'] == 2){ - header("X-Sendfile: $file"); - ob_end_clean(); - exit; - }elseif($conf['xsendfile'] == 3){ - header("X-Accel-Redirect: $file"); - ob_end_clean(); - exit; - } + global $conf; + + //use x-sendfile header to pass the delivery to compatible webservers + if($conf['xsendfile'] == 1){ + header("X-LIGHTTPD-send-file: $file"); + ob_end_clean(); + exit; + }elseif($conf['xsendfile'] == 2){ + header("X-Sendfile: $file"); + ob_end_clean(); + exit; + }elseif($conf['xsendfile'] == 3){ + header("X-Accel-Redirect: $file"); + ob_end_clean(); + exit; + } - return false; + return false; } /** @@ -166,11 +166,11 @@ function http_rangeRequest($fh,$size,$mime){ fseek($fh,$start); //seek to start of range $chunk = ($len > HTTP_CHUNK_SIZE) ? HTTP_CHUNK_SIZE : $len; while (!feof($fh) && $chunk > 0) { - @set_time_limit(30); // large files can take a lot of time - print fread($fh, $chunk); - flush(); - $len -= $chunk; - $chunk = ($len > HTTP_CHUNK_SIZE) ? HTTP_CHUNK_SIZE : $len; + @set_time_limit(30); // large files can take a lot of time + print fread($fh, $chunk); + flush(); + $len -= $chunk; + $chunk = ($len > HTTP_CHUNK_SIZE) ? HTTP_CHUNK_SIZE : $len; } } if($parts > 1){ |