private function delete_all()
{
global $wpdb;
check_admin_referer('amber_dashboard');
$storage = Amber::get_storage();
$storage->delete_all();
$status = Amber::get_status();
$status->delete_all();
$prefix = $wpdb->prefix;
$wpdb->query("DELETE from {$prefix}amber_queue");
}
/**
* Request handling function to display cached content and assets
*/
public static function display_cached_content($wp)
{
$cache_frame_id = !empty($wp->query_vars['amber_cacheframe']) ? $wp->query_vars['amber_cacheframe'] : "";
$cache_id = !empty($wp->query_vars['amber_cache']) ? $wp->query_vars['amber_cache'] : "";
$asset_id = !empty($wp->query_vars['amber_asset']) ? $wp->query_vars['amber_asset'] : "";
$asset_id = rtrim($asset_id, "/");
/* Get rid of stray characters on the end */
/* Displaying the cache frame page with an iframe referencing the cached item */
if (!empty($cache_id)) {
status_header(200);
/* This must be set BEFORE any content is printed */
$data = Amber::retrieve_cache_item($cache_id);
/* If the document is a PDF, serve it directly rather than in an iframe. Browsers
will not render PDFs within sandboxed iframes. */
if (isset($data['metadata']['type']) && $data['metadata']['type'] == 'application/pdf') {
print $data['data'];
$status = Amber::get_status();
$status->save_view($cache_id);
die;
}
$uri = $_SERVER["REQUEST_URI"];
$iframe_url = "";
if ($uri && strrpos($uri, "/") == strlen($uri) - 1) {
$iframe_url = "../";
}
$iframe_url .= "../" . "cacheframe/{$cache_id}/";
print <<<EOF
<!DOCTYPE html>
<html style="height: 100%">
<head>
<title>Amber</title>
</head>
<body style="margin:0; padding: 0; height: 100%">
<iframe
sandbox="allow-scripts allow-forms allow-popups allow-pointer-lock"
security="restricted"
style="border:0 none transparent; background-color:transparent; width:100%; height:100%;"
src="{$iframe_url}"></iframe>
</body>
</html>
EOF;
die;
}
if (!empty($cache_frame_id)) {
status_header(200);
/* This must be set BEFORE any content is printed */
if (empty($asset_id)) {
/* This is the root item */
$data = Amber::retrieve_cache_item($cache_frame_id);
$status = Amber::get_status();
$status->save_view($cache_frame_id);
print $data['data'];
die;
} else {
/* This is an asset */
$data = Amber::retrieve_cache_asset($cache_frame_id, $asset_id);
print $data['data'];
die;
}
}
}
public static function ajax_log_cache_view()
{
if (isset($_GET['cache'])) {
header("Cache-Control: no-cache, must-revalidate");
header("Pragma: no-cache");
header("Expires: 0");
$status = Amber::get_status();
if ($status->save_view_for_external_cache_location($_GET['cache'])) {
status_header(200);
} else {
status_header(404);
}
} else {
status_header(400);
}
die;
}
