/**
* Handle the PMP notification hub sending subscription verification to the callback
*
* @since 0.3
*/
function pmp_subscription_verification($data)
{
if (isset($data['pmp-notifications'])) {
unset($data['pmp-notifications']);
}
$settings = get_option('pmp_settings');
if (isset($settings['pmp_use_api_notifications']) && $settings['pmp_use_api_notifications'] == 'on') {
$mode = 'unsubscribe';
} else {
$mode = 'subscribe';
}
$topic_urls = pmp_get_topic_urls();
$verify_token = pmp_get_verification_token($data['hub_topic']);
if ($data['hub_verify_token'] == $verify_token && in_array($data['hub_topic'], $topic_urls) && $data['hub_mode'] == $mode) {
echo $data['hub_challenge'];
}
}
/**
* Field validations
*
* @since 0.1
*/
function pmp_settings_validate($input)
{
$errors = false;
$options = get_option('pmp_settings');
if (empty($input['pmp_client_secret']) && !empty($options['pmp_client_secret'])) {
$input['pmp_client_secret'] = $options['pmp_client_secret'];
}
if (!empty($input['pmp_api_url']) && filter_var($input['pmp_api_url'], FILTER_VALIDATE_URL) == false) {
add_settings_error('pmp_settings_fields', 'pmp_api_url_error', 'Please enter a valid PMP API URL.', 'error');
$input['pmp_api_url'] = '';
$errors = true;
} else {
add_settings_error('pmp_settings_fields', 'pmp_settings_updated', 'PMP settings successfully updated!', 'updated');
$errors = true;
}
if (!empty($input['pmp_use_api_notifications']) && !isset($options['pmp_use_api_notifications'])) {
foreach (pmp_get_topic_urls() as $topic_url) {
$result = pmp_send_subscription_request('subscribe', $topic_url);
if ($result !== true) {
add_settings_error('pmp_settings_fields', 'pmp_notifications_subscribe_error', $result, 'error');
$errors = true;
}
}
} else {
if (empty($input['pmp_use_api_notifications']) && isset($options['pmp_use_api_notifications'])) {
foreach (pmp_get_topic_urls() as $topic_url) {
$result = pmp_send_subscription_request('unsubscribe', $topic_url);
if ($result !== true) {
add_settings_error('pmp_settings_fields', 'pmp_notifications_unsubscribe_error', $result, 'error');
$errors = true;
}
}
}
}
if (empty($errors)) {
pmp_update_my_guid_transient();
}
return $input;
}
