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trying to work around gzip issue

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This commit is contained in:
Petr Skoda 2010-11-19 08:51:49 +00:00
parent 70b082fa6d
commit 6e65fcd9b9
1 changed files with 15 additions and 5 deletions
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20
lib/filelib.php
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@ -1482,17 +1482,27 @@ function send_file_not_found() {
function prepare_file_sending() {
$olddebug = error_reporting(0);
// this is weird, but browser that do not support gzip or deflate have session problems here,
// let's try to work around it
$bugalert = false;
// IE compatibility HACK - it does not like zlib compression much
// there is also a problem with the length header in older PHP versions
if (ini_get_bool('zlib.output_compression')) {
ini_set('zlib.output_compression', 'Off');
if (!isset($_SERVER['HTTP_ACCEPT_ENCODING']) or (strpos($_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip') === false and strpos($_SERVER['HTTP_ACCEPT_ENCODING'], 'deflate') === false)) {
$bugalert = true;
} else {
ini_set('zlib.output_compression', 'Off');
}
}
// flush and close all buffers if possible
while(ob_get_level()) {
if (!ob_end_flush()) {
// prevent infinite loop when buffer can not be closed
break;
if (!$bugalert) {
while(ob_get_level()) {
if (!ob_end_flush()) {
// prevent infinite loop when buffer can not be closed
break;
}
}
}