* FilesystemPublisher::$domain_based_caching = true;
*
*
* and added main site host mapping in subsites/host-map.php after everytime
* a new subsite is created or modified.
*
* If you are not using subsites, the host-map.php file will not exist (it is
* automatically generated by the Subsites module) and the cache will default
* to no subdirectory.
*
* @package staticpublisher
*/
require_once('../framework/core/Constants.php');
if(defined('SS_STATICPUBLISHER_ENABLED')) {
$cacheEnabled = SS_STATICPUBLISHER_ENABLED;
} else {
$cacheEnabled = true;
}
if(defined('SS_STATICPUBLISHER_CACHEDIR')) {
$cacheBaseDir = SS_STATICPUBLISHER_CACHEDIR;
} else {
$cacheBaseDir = '../cache/';
}
if(defined('SS_STATICPUBLISHER_DEBUG')) {
$cacheDebug = SS_STATICPUBLISHER_DEBUG;
} else {
$cacheDebug = false;
}
// Optional settings for FilesystemPublisher::$domain_based_mapping=TRUE
$hostmapLocation = '../subsites/host-map.php';
// Specific to 'homepagefordomain' module
$homepageMapLocation = '../assets/_homepage-map.php';
function skipCache() {
require_once('../framework/core/Core.php');
require_once('../framework/main.php');
}
if (
$cacheEnabled
&& empty($_COOKIE['bypassStaticCache'])
// No GET params other than cache relevant config is passed (e.g. "?stage=Stage"),
// which would mean that we have to bypass the cache
&& count(array_diff(array_keys($_GET), array('url', 'cacheSubdir'))) == 0
// Request is not POST (which would have to be handled dynamically)
&& count($_POST) == 0
&& count($_GET) <= 1
) {
// Define system paths (copied from Core.php)
if(!defined('BASE_PATH')) {
// Assuming that this file is staticpublisher/main.php we can then determine the base path
define('BASE_PATH', rtrim(dirname(dirname(__FILE__))), DIRECTORY_SEPARATOR);
}
if(!defined('BASE_URL')) {
// Determine the base URL by comparing SCRIPT_NAME to SCRIPT_FILENAME and getting common elements
$path = realpath($_SERVER['SCRIPT_FILENAME']);
if(substr($path, 0, strlen(BASE_PATH)) == BASE_PATH) {
$urlSegmentToRemove = substr($path, strlen(BASE_PATH));
if(substr($_SERVER['SCRIPT_NAME'], -strlen($urlSegmentToRemove)) == $urlSegmentToRemove) {
$baseURL = substr($_SERVER['SCRIPT_NAME'], 0, -strlen($urlSegmentToRemove));
define('BASE_URL', rtrim($baseURL, DIRECTORY_SEPARATOR));
}
}
}
$url = $_GET['url'];
// Remove base folders from the URL if webroot is hosted in a subfolder
if (substr(strtolower($url), 0, strlen(BASE_URL)) == strtolower(BASE_URL)) {
$url = substr($url, strlen(BASE_URL));
}
$host = str_replace('www.', '', $_SERVER['HTTP_HOST']);
// Custom cache dir for debugging purposes
if (isset($_GET['cacheSubdir']) && !preg_match('/[^a-zA-Z0-9\-_]/', $_GET['cacheSubdir'])) {
$cacheDir = $_GET['cacheSubdir'].'/';
}
// Custom mapping through PHP file (assumed FilesystemPublisher::$domain_based_mapping=TRUE)
else if (file_exists($hostmapLocation)) {
include_once $hostmapLocation;
$subsiteHostmap['default'] = isset($subsiteHostmap['default']) ? $subsiteHostmap['default'] : '';
$cacheDir = (isset($subsiteHostmap[$host]) ? $subsiteHostmap[$host] : $subsiteHostmap['default']) . '/';
}
// No subfolder (for FilesystemPublisher::$domain_based_mapping=FALSE)
else {
$cacheDir = '';
}
// Look for the file in the cachedir
$file = trim($url, '/');
$file = $file ? $file : 'index';
// Route to the 'correct' index file (if applicable)
if ($file == 'index' && file_exists($homepageMapLocation)) {
include_once $homepageMapLocation;
$file = isset($homepageMap[$_SERVER['HTTP_HOST']]) ? $homepageMap[$_SERVER['HTTP_HOST']] : $file;
}
// Encode each part of the path individually, in order to support multibyte paths.
// SiteTree.URLSegment and hence the static folder and filenames are stored in encoded form,
// to avoid filesystem incompatibilities.
$file = implode('/', array_map('rawurlencode', explode('/', $file)));
// Find file by extension (either *.html or *.php)
if (file_exists($cacheBaseDir . $cacheDir . $file . '.html')) {
//source: http://css-tricks.com/snippets/php/intelligent-php-cache-control/
$filepath = $cacheBaseDir . $cacheDir . $file . '.html';
$lastModified=filemtime($filepath);
$etagFile = md5_file($filepath);
$ifModifiedSince=(isset($_SERVER['HTTP_IF_MODIFIED_SINCE']) ? $_SERVER['HTTP_IF_MODIFIED_SINCE'] : false);
$etagHeader=(isset($_SERVER['HTTP_IF_NONE_MATCH']) ? trim($_SERVER['HTTP_IF_NONE_MATCH']) : false);
header("Last-Modified: ".gmdate("D, d M Y H:i:s", $lastModified)." GMT");
header("Etag: $etagFile");
header('Cache-Control: public');
header('X-SilverStripe-Cache: hit at '.@date('r'));
if (($ifModifiedSince && @strtotime($ifModifiedSince)==$lastModified) || $etagHeader == $etagFile) {
header("HTTP/1.1 304 Not Modified");
exit;
}
echo file_get_contents($filepath);
if ($cacheDebug) {
echo "File was cached
";
}
} elseif (file_exists($cacheBaseDir . $cacheDir . $file . '.php')) {
header('X-SilverStripe-Cache: hit at '.@date('r'));
include_once $cacheBaseDir . $cacheDir . $file . '.php';
if ($cacheDebug) {
echo "File was cached
";
}
} else {
header('X-SilverStripe-Cache: miss at '.@date('r') . ' on ' . $cacheDir . $file);
skipCache();
if ($cacheDebug) echo "File was NOT cached
";
}
} else {
// Fall back to dynamic generation via normal routing if caching has been explicitly disabled
header('X-SilverStripe-Cache: skipped at '.@date('r'));
if ($cacheDebug) {
echo "Cache skipped
";
}
skipCache();
}