/**
* Process items from queue.
*
* By default, every six minutes send ten emails.
*
* @since 1.0
* @access public
*/
public function process_queue()
{
// Look for existing addresses
$existing = $this->get_queue();
if (!is_array($existing) && $existing) {
return false;
}
// Check how much emails are already sent in this interval
$sent = WP_Temporary::get('simple_email_queue_sent');
if (!$sent) {
$sent = 0;
}
/*
* Maximum number of allowed email to send
* is difference between maximum allowed and
* number of sent emails in this interval.
*/
$max = $this->max() - $sent;
$num_sent = 0;
foreach ($existing as $key => $value) {
if ($num_sent >= $max) {
break;
}
$email_to = key($value);
$email_key = $value[$email_to];
$this->send_email($email_to, $email_key);
// Remove item from array
unset($existing[$key]);
// Increase number of sent emails
$num_sent++;
}
// Save temporary that stores existing of temporary based on existence mail in queue
if ($existing) {
WP_Temporary::set('simple_email_queue_exist', 1, WEEK_IN_SECONDS);
} else {
WP_Temporary::delete('simple_email_queue_exist');
}
// Save new queue
$this->set_queue($existing);
// Save new number of sent emails in this interval
$new_sent = $sent + $num_sent;
WP_Temporary::update('simple_email_queue_sent', $new_sent, $this->interval());
}
/**
* Make CloudFlare API request.
*
* @since 1.0
* @access public
*
* @param string $endpoint Endpoint of CloudFlare API URL.
* @param array $args Request arguments.
* @return WP_Error|array $response The response or WP_Error on failure.
*/
public function request($endpoint, $args)
{
// Have we passed limit
$requests = $this->can_fetch();
if (!$requests) {
return new WP_Error('purge-cache-for-cloudflare-requests-limit', __('Requests limit passed.', 'purge-cache-for-cloudflare'), 429);
}
// Save new number of requests in this interval
WP_Temporary::update('purge_cache_for_cloudflare_requests_limit', $requests + 1, 15 * MINUTE_IN_SECONDS);
$defaults = array('headers' => array('X-Auth-Email' => $this->email, 'X-Auth-Key' => $this->api_key, 'Content-Type' => 'application/json'));
$r = wp_parse_args($args, $defaults);
$response = wp_remote_request($this->base_endpoint . $endpoint, $r);
return $response;
}
/**
* Set cache content for name.
*
* @access public
*
* @param string $string Name of cache that is set.
* @param mixed $content Value of cache that should be set.
* @return bool False if value was not set and true if value was set.
*/
public static function set($name, $content)
{
return \WP_Temporary::update(self::key($name), $content, 5 * MINUTE_IN_SECONDS);
}
