/**
* Check if cache time is expired and post must be refreshed
*
* @global array $post
* @return boolean
*/
function mashsb_is_cache_refresh()
{
global $post, $mashsb_options;
// Debug mode or cache activated
if (MASHSB_DEBUG || isset($mashsb_options['disable_cache'])) {
MASHSB()->logger->info('mashsb_is_cache_refresh: MASHSB_DEBUG - refresh Cache');
return true;
}
// if it's a crawl deactivate cache
if (isset($_SERVER['HTTP_USER_AGENT']) && preg_match('/bot|crawl|slurp|spider/i', $_SERVER['HTTP_USER_AGENT'])) {
return false;
}
/*
* Deactivate share count on:
* - 404 pages
* - search page
* - empty url
* - disabled permalinks
* - admin pages
*
Exit here to save cpu time
*/
if (is_404() || is_search() || is_admin() || !mashsb_is_enabled_permalinks()) {
return false;
}
// New cache on singular pages
//
// Refreshing cache on blog posts like categories will lead
// to high load and multiple API requests so we only check
// the main url on these other pages
if (is_singular()) {
// last updated timestamp
$last_updated = get_post_meta($post->ID, 'mashsb_timestamp', true);
if (!empty($last_updated)) {
MASHSB()->logger->info('mashsb_is_cache_refresh - is_singular() url: ' . get_permalink($post->ID) . ' : last updated:' . date('Y-m-d H:i:s', $last_updated));
}
} else {
if (mashsb_get_main_url()) {
// Get transient timeout and calculate last update time
$url = mashsb_get_main_url();
$transient = '_transient_timeout_mashcount_' . md5(mashsb_get_main_url());
$last_updated = get_option($transient) - mashsb_get_expiration();
if (!empty($last_updated)) {
MASHSB()->logger->info('mashsb_is_cache_refresh() mashsb_get_main_url() url: ' . $url . ' last updated:' . date('Y-m-d H:i:s', $last_updated));
}
} else {
// No valid URL so do not refresh cache
MASHSB()->logger->info('mashsb_is_cache_refresh: No valid URL - do not refresh cache');
return false;
}
}
// No timestamp so let's create cache for the first time
if (empty($last_updated)) {
MASHSB()->logger->info('mashsb_is_cache_refresh: No Timestamp. Refresh Cache');
return true;
}
// The caching expiration
$expiration = mashsb_get_expiration();
$next_update = $last_updated + $expiration;
MASHSB()->logger->info('mashsb_is_cache_refresh. Next update ' . date('Y-m-d H:i:s', $next_update) . ' current time: ' . date('Y-m-d H:i:s', time()));
// Refresh Cache when last update plus expiration is older than current time
if ($last_updated + $expiration <= time()) {
MASHSB()->logger->info('mashsb_is_cache_refresh: Refresh Cache!');
return true;
}
}
function mashsb_get_url()
{
global $post;
if (isset($post->ID)) {
// The permalink for singular pages!
// Do not check here for is_singular() (like e.g. the sharebar addon does.)
// Need to check for post id because on category and archiv pages
// we want the pageID within the loop instead the first appearing one.
$url = mashsb_sanitize_url(get_permalink($post->ID));
} else {
// The main URL
$url = mashsb_get_main_url();
}
return apply_filters('mashsb_get_url', $url);
}
