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static file caching

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This commit is contained in:
Shish 2009-08-01 02:31:49 +01:00
parent 8e4d6583f5
commit bdcca24f8d
2 changed files with 42 additions and 1 deletions
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38
core/util.inc.php
View file

@ -718,4 +718,42 @@ function _get_user() {
return $user;
}
function _start_cache() {
$_do_cache = (CACHE && !isset($_COOKIE["shm_session"]) && !isset($_COOKIE["shm_nocache"]));
if($_do_cache) {
$hash = md5($_SERVER["QUERY_STRING"]);
$ab = substr($hash, 0, 2);
$cd = substr($hash, 2, 2);
$cachename = "data/$ab/$cd/$hash";
if(!file_exists("data/$ab/$cd/")) {
mkdir("data/$ab/$cd/", 0750, true);
}
if(file_exists($cachename)) {
$gmdate_mod = gmdate('D, d M Y H:i:s', filemtime($cachename)) . ' GMT';
if(isset($_SERVER["HTTP_IF_MODIFIED_SINCE"])) {
$if_modified_since = preg_replace('/;.*$/', '', $_SERVER["HTTP_IF_MODIFIED_SINCE"]);
if($if_modified_since == $gmdate_mod) {
header("HTTP/1.0 304 Not Modified");
header("Content-type: text/html");
}
}
else {
header("Content-type: text/html");
header("Last-Modified: $gmdate_mod");
print file_get_contents($cachename);
}
exit;
}
ob_start();
}
}
function _end_cache() {
$_do_cache = (CACHE && !isset($_COOKIE["shm_session"]) && !isset($_COOKIE["shm_nocache"]));
if($_do_cache) {
file_put_contents($cachename, ob_get_contents());
}
}
?>

5
index.php
View file

@ -52,6 +52,7 @@
// set up and purify the environment
define("DEBUG", true);
define("CACHE", true);
define("SCORE_VERSION", 's2hack');
define("VERSION", 'trunk');
@ -63,7 +64,7 @@ if(!file_exists("config.php")) {
require_once "core/util.inc.php";
_version_check();
_sanitise_environment();
_start_cache();
try {
// load base files
@ -125,6 +126,8 @@ try {
if($database->engine->name != "sqlite") {
$database->db->CommitTrans(true);
}
_end_cache();
}
catch(Exception $e) {
$version = VERSION;