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PURGE for caching reverse-proxies like Squid or Varnish

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This commit is contained in:
Savetheinternet 2011-05-22 01:12:57 +10:00
parent 24932a15bf
commit 0137b96464
2 changed files with 36 additions and 0 deletions
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8
inc/config.php
View File

@ -661,6 +661,14 @@
// Keep the Google Analytics cookies to one domain -- ga._setDomainName()
// $config['google_analytics_domain'] = 'www.example.org';
// If you use Varnish, Squid, or any similar caching reverse-proxy in front of Tinyboard,
// you can configure Tinyboard to PURGE files when they're written to
//$config['purge'] = Array(
// Array('127.0.0.1', 80)
//);
// Connection timeout, in seconds
$config['purge_timeout'] = 3;
if($_SERVER['SCRIPT_FILENAME'] == str_replace('\\', '/', __FILE__)) {
// You cannot request this file directly.
header('Location: ../', true, 302);

28
inc/functions.php
View File

@ -218,6 +218,25 @@
} else return false;
}
function purge($uri) {
global $config;
$uri = (str_replace('\\', '/', dirname($_SERVER['REQUEST_URI'])) == '/' ? '/' : str_replace('\\', '/', dirname($_SERVER['REQUEST_URI'])) . '/') . $uri;
$request = "PURGE {$uri} HTTP/1.0\r\nHost: {$_SERVER['HTTP_HOST']}\r\nUser-Agent: Tinyboard\r\nConnection: Close\r\n\r\n";
foreach($config['purge'] as &$purge) {
$host = $purge[0];
$port = $purge[1];
if($fp = fsockopen($host, $port, $errno, $errstr, $config['purge_timeout'])) {
fwrite($fp, $request);
fclose($fp);
} else {
// Cannot connect?
error('Could not PURGE for ' . $host);
}
}
}
function file_write($path, $data) {
global $config;
if(preg_match('/^scp:\/\/(.+)$/', $path, $m)) {
@ -233,6 +252,15 @@
return;
}
if(isset($config['purge']) && isset($_SERVER['HTTP_HOST'])) {
// Purge cache
if(basename($path) == $config['file_index']) {
// Index file (/index.html); purge "/" as well
purge(dirname($path) . '/');
}
purge($path);
}
if(!$fp = fopen($path, 'c'))
error('Unable to open file for writing: ' . $path);