/**
* Generates the shortlink for the post specified by $post_id.
*
* @since 0.1
*
* @param int $post_id The post ID we need a shortlink for.
*
* @return bool|string Returns the shortlink on success.
*/
function wpbitly_generate_shortlink($post_id)
{
$wpbitly = wpbitly();
// Avoid creating shortlinks during an autosave
if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) {
return;
}
// or for revisions
if (wp_is_post_revision($post_id)) {
return;
}
// Token hasn't been verified, bail
if (!$wpbitly->get_option('authorized')) {
return;
}
// Verify this is a post we want to generate short links for
if (!in_array(get_post_type($post_id), $wpbitly->get_option('post_types')) || !in_array(get_post_status($post_id), array('publish', 'future', 'private'))) {
return;
}
// We made it this far? Let's get a shortlink
$permalink = get_permalink($post_id);
$shortlink = get_post_meta($post_id, '_wpbitly', true);
$token = $wpbitly->get_option('oauth_token');
if (!empty($shortlink)) {
$url = sprintf(wpbitly_api('expand'), $token, $shortlink);
$response = wpbitly_get($url);
wpbitly_debug_log($response, '/expand/');
if ($permalink == $response['data']['expand'][0]['long_url']) {
return $shortlink;
}
}
$url = sprintf(wpbitly_api('shorten'), $token, urlencode($permalink));
$response = wpbitly_get($url);
wpbitly_debug_log($response, '/shorten/');
if (is_array($response)) {
$shortlink = $response['data']['url'];
update_post_meta($post_id, '_wpbitly', $shortlink);
}
return $shortlink;
}
/**
* Validate user settings. This will also authorize their OAuth token if it has
* changed.
*
* @since 2.0
* @uses wpbitly()
*
* @param array $input WordPress sanitized data array
*
* @return array WP Bit.ly sanitized data
*/
public function validate_settings($input)
{
$wpbitly = wpbitly();
$input['debug'] = '1' == $input['debug'] ? true : false;
$input['oauth_token'] = sanitize_text_field($input['oauth_token']);
$url = sprintf(wpbitly_api('user/info'), $input['oauth_token']);
$response = wpbitly_get($url);
wpbitly_debug_log($response, 'Validate OAuth', $input['debug']);
$input['authorized'] = isset($response['data']['member_since']) ? true : false;
if (!isset($input['post_types'])) {
$input['post_types'] = array();
} else {
$post_types = apply_filters('wpbitly_allowed_post_types', get_post_types(array('public' => true)));
foreach ($input['post_types'] as $key => $pt) {
if (!in_array($pt, $post_types)) {
unset($input['post_types'][$key]);
}
}
}
return $input;
}
