/**
* When a tracked email is opened.
*
* @since 1.3
* @param arr $data Data from the $_GET request
* @return void
*/
function mdjm_track_open_email($data)
{
if (!isset($data['tracker_id'])) {
die;
}
$tracking_id = $data['tracker_id'];
$current_status = get_post_status($tracking_id);
if (!$current_status || 'opened' == $current_status) {
die;
}
do_action('mdjm_pre_track_email_opened', $tracking_id);
header('Cache-Control: no-store, no-cache, must-revalidate');
header('Cache-Control: post-check=0, pre-check=0', false);
header('Pragma: no-cache');
$invpicture = MDJM_PLUGIN_DIR . '/assets/images/invpicture.png';
$invpicture = apply_filters('mdjm_email_track_invpicture', $invpicture);
$handle = fopen($invpicture, 'r');
if (!$handle) {
die;
}
header('Content-type: image/png');
$contents = fread($handle, filesize($invpicture));
fclose($handle);
echo $contents;
mdjm_email_set_tracking_status($tracking_id, 'opened');
do_action('mdjm_post_track_email_opened', $tracking_id);
die;
}
/**
* Store the communication.
*
* @since 1.3
*/
public function update_tracking_status()
{
if (!empty($this->tracking_id)) {
mdjm_email_set_tracking_status($this->tracking_id, 'sent');
}
}
