<?php
if ( ! defined( 'ABSPATH' ) ) {
die( 'You are not allowed to call this page directly.' );
}
class FrmAddon {
public $store_url = 'https://formidableforms.com';
public $download_id;
public $plugin_file;
public $plugin_folder;
public $plugin_name;
public $plugin_slug;
public $option_name;
public $version;
public $author = 'Strategy11';
public $is_parent_licence = false;
public $needs_license = true;
private $is_expired_addon = false;
public $license;
protected $get_beta = false;
public function __construct() {
if ( empty( $this->plugin_slug ) ) {
$this->plugin_slug = preg_replace( '/[^a-zA-Z0-9_\s]/', '', str_replace( ' ', '_', strtolower( $this->plugin_name ) ) );
}
if ( empty( $this->option_name ) ) {
$this->option_name = 'edd_' . $this->plugin_slug . '_license_';
}
$this->plugin_folder = plugin_basename( $this->plugin_file );
$this->license = $this->get_license();
add_filter( 'frm_installed_addons', array( &$this, 'insert_installed_addon' ) );
$this->edd_plugin_updater();
}
public static function load_hooks() {
add_filter( 'frm_include_addon_page', '__return_true' );
//new static();
}
public function insert_installed_addon( $plugins ) {
$plugins[ $this->plugin_slug ] = $this;
return $plugins;
}
public static function get_addon( $plugin_slug ) {
$plugins = apply_filters( 'frm_installed_addons', array() );
$plugin = false;
if ( isset( $plugins[ $plugin_slug ] ) ) {
$plugin = $plugins[ $plugin_slug ];
}
return $plugin;
}
public function edd_plugin_updater() {
$this->is_license_revoked();
$license = $this->license;
add_action( 'after_plugin_row_' . plugin_basename( $this->plugin_file ), array( $this, 'maybe_show_license_message' ), 10, 2 );
if ( ! empty( $license ) ) {
if ( 'formidable/formidable.php' !== $this->plugin_folder ) {
add_filter( 'plugins_api', array( &$this, 'plugins_api_filter' ), 10, 3 );
}
add_filter( 'site_transient_update_plugins', array( &$this, 'clear_expired_download' ) );
}
}
/**
* Updates information on the "View version x.x details" page with custom data.
*
* @uses api_request()
*
* @param mixed $_data
* @param string $_action
* @param object $_args
*
* @return object $_data
*/
public function plugins_api_filter( $_data, $_action = '', $_args = null ) {
if ( $_action != 'plugin_information' ) {
return $_data;
}
$slug = basename( $this->plugin_file, '.php' );
$slug2 = str_replace( '/' . $slug . '.php', '', $this->plugin_folder );
if ( empty( $_args->slug ) || ( $_args->slug != $slug && $_args->slug !== $slug2 ) ) {
return $_data;
}
$item_id = $this->download_id;
if ( empty( $item_id ) ) {
$_data = array(
'name' => $this->plugin_name,
'excerpt' => '',
'changelog' => 'See the full changelog at <a href="' . esc_url( $this->store_url . '/changelog/' ) . '"></a>',
'banners' => array(
'high' => '',
'low' => 'https://ps.w.org/formidable/assets/banner-1544x500.png',
),
);
} else {
$api = new FrmFormApi( $this->license );
$plugins = $api->get_api_info();
$_data = $plugins[ $item_id ];
}
$_data['sections'] = array(
'description' => $_data['excerpt'],
'changelog' => $_data['changelog'],
);
$_data['author'] = '<a href="' . esc_url( $this->store_url ) . '">' . esc_html( $this->author ) . '</a>';
$_data['homepage'] = $this->store_url;
return (object) $_data;
}
public function get_license() {
$license = $this->maybe_get_pro_license();
if ( ! empty( $license ) ) {
return $license;
}
$license = trim( get_option( $this->option_name . 'key' ) );
if ( empty( $license ) ) {
$license = $this->activate_defined_license();
}
return $license;
}
/**
* @since 3.04.03
*/
protected function maybe_get_pro_license() {
// prevent a loop if $this is the pro plugin
$get_license = FrmAppHelper::pro_is_installed() && is_callable( 'FrmProAppHelper::get_updater' ) && $this->plugin_name != 'Formidable Pro';
if ( ! $get_license ) {
return false;
}
$api = new FrmFormApi();
$api->get_pro_updater();
$license = $api->get_license();
if ( empty( $license ) ) {
return false;
}
$this->get_api_info( $license );
if ( ! $this->is_parent_licence ) {
$license = false;
}
return $license;
}
/**
* Activate the license in wp-config.php
*
* @since 2.04
*/
public function activate_defined_license() {
$license = $this->get_defined_license();
if ( ! empty( $license ) && ! $this->is_active() && $this->is_time_to_auto_activate() ) {
$response = $this->activate_license( $license );
$this->set_auto_activate_time();
if ( ! $response['success'] ) {
$license = '';
}
}
return $license;
}
/**
* Check the wp-config.php for the license key
*
* @since 2.04
*/
public function get_defined_license() {
$consant_name = 'FRM_' . strtoupper( $this->plugin_slug ) . '_LICENSE';
return defined( $consant_name ) ? constant( $consant_name ) : false;
}
public function set_license( $license ) {
update_option( $this->option_name . 'key', $license );
}
/**
* If the license is in the config, limit the frequency of checks.
* The license may be entered incorrectly, so we don't want to check on every page load.
*
* @since 2.04
*/
private function is_time_to_auto_activate() {
$last_try = get_option( $this->option_name . 'last_activate' );
return ( ! $last_try || $last_try < strtotime( '-1 day' ) );
}
private function set_auto_activate_time() {
update_option( $this->option_name . 'last_activate', time() );
}
public function is_active() {
return get_option( $this->option_name . 'active' );
}
/**
* @since 3.04.03
*
* @param array error
*/
public function maybe_clear_license( $error ) {
if ( $error['code'] === 'disabled' && $error['license'] === $this->license ) {
$this->clear_license();
}
}
public function clear_license() {
delete_option( $this->option_name . 'active' );
delete_option( $this->option_name . 'key' );
delete_site_option( $this->transient_key() );
delete_option( $this->transient_key() );
$this->delete_cache();
}
public function set_active( $is_active ) {
update_option( $this->option_name . 'active', $is_active );
$this->delete_cache();
FrmAppHelper::save_combined_js();
$this->update_pro_capabilities();
}
/**
* Updates roles capabilities after pro license is active.
*
* @since 5.0
*/
protected function update_pro_capabilities() {
global $wp_roles;
$caps = FrmAppHelper::frm_capabilities( 'pro_only' );
$roles = get_editable_roles();
$settings = new FrmSettings();
foreach ( $caps as $cap => $cap_desc ) {
$cap_roles = (array) ( isset( $settings->$cap ) ? $settings->$cap : 'administrator' );
// Make sure administrators always have permissions.
if ( ! in_array( 'administrator', $cap_roles ) ) {
array_push( $cap_roles, 'administrator' );
}
foreach ( $roles as $role => $details ) {
if ( in_array( $role, $cap_roles ) ) {
$wp_roles->add_cap( $role, $cap );
} else {
$wp_roles->remove_cap( $role, $cap );
}
}
}
}
/**
* @since 3.04.03
*/
protected function delete_cache() {
delete_transient( 'frm_api_licence' );
$api = new FrmFormApi( $this->license );
$api->reset_cached();
$api = new FrmFormTemplateApi( $this->license );
$api->reset_cached();
}
/**
* The Pro version includes the show_license_message function.
* We need an extra check before we allow it to show a message.
*
* @since 3.04.03
*/
public function maybe_show_license_message( $file, $plugin ) {
if ( $this->is_expired_addon || isset( $plugin['package'] ) ) {
// let's not show a ton of duplicate messages
return;
}
$this->show_license_message( $file, $plugin );
}
public function show_license_message( $file, $plugin ) {
$message = '';
if ( empty( $this->license ) ) {
/* translators: %1$s: Plugin name, %2$s: Start link HTML, %3$s: end link HTML */
$message = sprintf( esc_html__( 'Your %1$s license key is missing. Please add it on the %2$slicenses page%3$s.', 'formidable' ), esc_html( $this->plugin_name ), '<a href="' . esc_url( admin_url( 'admin.php?page=formidable-settings' ) ) . '">', '</a>' );
} else {
$api = new FrmFormApi( $this->license );
$errors = $api->error_for_license();
if ( ! empty( $errors ) ) {
$message = reset( $errors );
}
}
if ( empty( $message ) ) {
return;
}
$wp_list_table = _get_list_table( 'WP_Plugins_List_Table' );
$id = sanitize_title( $plugin['Name'] ) . '-next';
echo '<tr class="plugin-update-tr active" id="' . esc_attr( $id ) . '"><td colspan="' . esc_attr( $wp_list_table->get_column_count() ) . '" class="plugin-update colspanchange"><div class="update-message notice error inline notice-error notice-alt"><p>';
echo FrmAppHelper::kses( $message, 'a' ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
echo '<script type="text/javascript">var d = document.getElementById("' . esc_attr( $id ) . '").previousSibling;if ( d !== null ){ d.className = d.className + " update"; }</script>';
echo '</p></div></td></tr>';
}
public function clear_expired_download( $transient ) {
if ( ! is_object( $transient ) ) {
return $transient;
}
if ( $this->is_current_version( $transient ) ) {
//make sure it doesn't show there is an update if plugin is up-to-date
if ( isset( $transient->response[ $this->plugin_folder ] ) ) {
unset( $transient->response[ $this->plugin_folder ] );
}
} elseif ( isset( $transient->response ) && isset( $transient->response[ $this->plugin_folder ] ) ) {
$this->prepare_update_details( $transient->response[ $this->plugin_folder ] );
// if the transient has expired, clear the update and trigger it again
if ( $transient->response[ $this->plugin_folder ] === false ) {
if ( ! $this->has_been_cleared() ) {
$this->cleared_plugins();
$this->manually_queue_update();
}
unset( $transient->response[ $this->plugin_folder ] );
}
}
return $transient;
}
/**
* Check if the plugin information is correct to allow an update
*
* @since 3.04.03
*
* @param object $transient - the current plugin info saved for update
*/
private function prepare_update_details( &$transient ) {
$version_info = $transient;
$has_beta_url = isset( $version_info->beta ) && ! empty( $version_info->beta );
if ( $this->get_beta && ! $has_beta_url ) {
$version_info = (object) $this->get_api_info( $this->license );
}
if ( isset( $version_info->new_version ) && ! empty( $version_info->new_version ) ) {
$this->clear_old_plugin_version( $version_info );
if ( $version_info === false ) { // was cleared with timeout
$transient = false;
} else {
$this->maybe_use_beta_url( $version_info );
if ( version_compare( $version_info->new_version, $this->version, '>' ) ) {
$transient = $version_info;
}
}
}
}
/**
* Get the API info for this plugin
*
* @since 3.04.03
*/
protected function get_api_info( $license ) {
$api = new FrmFormApi( $license );
$addon = $api->get_addon_for_license( $this );
// if there is no download url, this license does not apply to the addon
if ( isset( $addon['package'] ) ) {
$this->is_parent_licence = true;
} elseif ( isset( $addon['error'] ) ) {
// if the license is expired, we must assume all add-ons were packaged
$this->is_parent_licence = true;
$this->is_expired_addon = true;
}
return $addon;
}
/**
* Make sure transients don't stick around on sites that
* don't save the transient expiration
*
* @since 2.05.05
*/
private function clear_old_plugin_version( &$version_info ) {
$timeout = ( isset( $version_info->timeout ) && ! empty( $version_info->timeout ) ) ? $version_info->timeout : 0;
if ( ! empty( $timeout ) && time() > $timeout ) {
$version_info = false; // Cache is expired
$api = new FrmFormApi( $this->license );
$api->reset_cached();
}
}
/**
* The beta url is always included if the download has a beta.
* Check if the beta should be downloaded.
*
* @since 3.04.03
*/
private function maybe_use_beta_url( &$version_info ) {
if ( $this->get_beta && isset( $version_info->beta ) && ! empty( $version_info->beta ) ) {
$version_info->new_version = $version_info->beta['version'];
$version_info->package = $version_info->beta['package'];
if ( isset( $version_info->plugin ) && ! empty( $version_info->plugin ) ) {
$version_info->plugin = $version_info->beta['plugin'];
}
}
}
private function is_current_version( $transient ) {
if ( empty( $transient->checked ) || ! isset( $transient->checked[ $this->plugin_folder ] ) ) {
return false;
}
$response = ! isset( $transient->response ) || empty( $transient->response );
if ( $response ) {
return true;
}
return isset( $transient->response ) && isset( $transient->response[ $this->plugin_folder ] ) && $transient->checked[ $this->plugin_folder ] === $transient->response[ $this->plugin_folder ]->new_version;
}
private function has_been_cleared() {
$last_cleared = get_option( 'frm_last_cleared' );
return ( $last_cleared && $last_cleared > gmdate( 'Y-m-d H:i:s', strtotime( '-5 minutes' ) ) );
}
private function cleared_plugins() {
update_option( 'frm_last_cleared', gmdate( 'Y-m-d H:i:s' ) );
}
private function is_license_revoked() {
if ( empty( $this->license ) || empty( $this->plugin_slug ) || isset( $_POST['license'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Missing
return;
}
if ( is_multisite() ) {
$last_checked = get_site_option( $this->transient_key() );
} else {
$last_checked = get_option( $this->transient_key() );
}
$seven_days_ago = gmdate( 'Y-m-d H:i:s', strtotime( '-7 days' ) );
if ( ! $last_checked || $last_checked < $seven_days_ago ) {
// check weekly
if ( is_multisite() ) {
update_site_option( $this->transient_key(), gmdate( 'Y-m-d H:i:s' ) );
} else {
update_option( $this->transient_key(), gmdate( 'Y-m-d H:i:s' ) );
}
$response = $this->get_license_status();
if ( 'revoked' === $response['status'] || 'blocked' === $response['status'] || 'disabled' === $response['status'] ) {
$this->clear_license();
}
}
}
/**
* Use a new cache after the license is changed, or Formidable is updated.
*/
private function transient_key() {
return 'frm_' . md5( sanitize_key( $this->license . '_' . $this->plugin_slug ) );
}
public static function activate() {
FrmAppHelper::permission_check( 'frm_change_settings' );
check_ajax_referer( 'frm_ajax', 'nonce' );
$license = stripslashes( FrmAppHelper::get_param( 'license', '', 'post', 'sanitize_text_field' ) );
if ( empty( $license ) ) {
wp_die(
json_encode(
array(
'message' => __( 'Oops! You forgot to enter your license number.', 'formidable' ),
'success' => false,
)
)
);
}
$plugin_slug = FrmAppHelper::get_param( 'plugin', '', 'post', 'sanitize_text_field' );
$response = self::activate_license_for_plugin( $license, $plugin_slug );
echo json_encode( $response );
wp_die();
}
/**
* @since 4.08
*/
public static function activate_license_for_plugin( $license, $plugin_slug ) {
$this_plugin = self::get_addon( $plugin_slug );
return $this_plugin->activate_license( $license );
}
private function activate_license( $license ) {
$this->set_license( $license );
$this->license = $license;
$response = $this->get_license_status();
$response['message'] = '';
$response['success'] = false;
if ( $response['error'] ) {
$response['message'] = $response['status'];
} else {
$messages = $this->get_messages();
if ( is_string( $response['status'] ) && isset( $messages[ $response['status'] ] ) ) {
$response['message'] = $messages[ $response['status'] ];
} else {
$response['message'] = FrmAppHelper::kses( $response['status'], array( 'a' ) );
}
$is_valid = false;
if ( 'valid' === $response['status'] ) {
$is_valid = 'valid';
$response['success'] = true;
}
$this->set_active( $is_valid );
}
return $response;
}
private function get_license_status() {
$response = array(
'status' => 'missing',
'error' => true,
);
if ( empty( $this->license ) ) {
$response['error'] = false;
return $response;
}
try {
$response['error'] = false;
$license_data = $this->send_mothership_request( 'activate_license' );
// $license_data->license will be either "valid" or "invalid"
if ( is_array( $license_data ) ) {
if ( in_array( $license_data['license'], array( 'valid', 'invalid' ), true ) ) {
$response['status'] = $license_data['license'];
}
} else {
$response['status'] = $license_data;
}
} catch ( Exception $e ) {
$response['status'] = $e->getMessage();
}
return $response;
}
private function get_messages() {
return array(
'valid' => __( 'Your license has been activated. Enjoy!', 'formidable' ),
'invalid' => __( 'That license key is invalid', 'formidable' ),
'expired' => __( 'That license is expired', 'formidable' ),
'revoked' => __( 'That license has been refunded', 'formidable' ),
'no_activations_left' => __( 'That license has been used on too many sites', 'formidable' ),
'invalid_item_id' => __( 'Oops! That is the wrong license key for this plugin.', 'formidable' ),
'missing' => __( 'That license key is invalid', 'formidable' ),
);
}
/**
* @since 4.03
*/
public static function reset_cache() {
FrmAppHelper::permission_check( 'frm_change_settings' );
check_ajax_referer( 'frm_ajax', 'nonce' );
$this_plugin = self::set_license_from_post();
$this_plugin->delete_cache();
$response = array(
'success' => true,
'message' => __( 'Cache cleared', 'formidable' ),
);
echo json_encode( $response );
wp_die();
}
public static function deactivate() {
FrmAppHelper::permission_check( 'frm_change_settings' );
check_ajax_referer( 'frm_ajax', 'nonce' );
$this_plugin = self::set_license_from_post();
$response = array(
'success' => false,
'message' => '',
);
try {
// $license_data->license will be either "deactivated" or "failed"
$license_data = $this_plugin->send_mothership_request( 'deactivate_license' );
if ( is_array( $license_data ) && 'deactivated' === $license_data['license'] ) {
$response['success'] = true;
$response['message'] = __( 'That license was removed successfully', 'formidable' );
} else {
$response['message'] = __( 'There was an error deactivating your license.', 'formidable' );
}
} catch ( Exception $e ) {
$response['message'] = $e->getMessage();
}
$this_plugin->clear_license();
echo json_encode( $response );
wp_die();
}
/**
* @since 4.03
*/
private static function set_license_from_post() {
$plugin_slug = FrmAppHelper::get_param( 'plugin', '', 'post', 'sanitize_text_field' );
$this_plugin = self::get_addon( $plugin_slug );
$license = $this_plugin->get_license();
$this_plugin->license = $license;
return $this_plugin;
}
public function send_mothership_request( $action ) {
$api_params = array(
'edd_action' => $action,
'license' => $this->license,
'url' => home_url(),
);
if ( is_numeric( $this->download_id ) ) {
$api_params['item_id'] = absint( $this->download_id );
} else {
$api_params['item_name'] = rawurlencode( $this->plugin_name );
}
$arg_array = array(
'body' => $api_params,
'timeout' => 25,
'user-agent' => $this->plugin_slug . '/' . $this->version . '; ' . get_bloginfo( 'url' ),
);
$resp = wp_remote_post( $this->store_url, $arg_array );
$body = wp_remote_retrieve_body( $resp );
$message = __( 'Your License Key was invalid', 'formidable' );
if ( is_wp_error( $resp ) ) {
$link = FrmAppHelper::admin_upgrade_link( 'api', 'knowledgebase/why-cant-i-activate-formidable-pro/' );
/* translators: %1$s: Start link HTML, %2$s: End link HTML */
$message = sprintf( __( 'You had an error communicating with the Formidable API. %1$sClick here%2$s for more information.', 'formidable' ), '<a href="' . esc_url( $link ) . '" target="_blank">', '</a>' );
$message .= ' ' . $resp->get_error_message();
} elseif ( 'error' === $body || is_wp_error( $body ) ) {
$message = __( 'You had an HTTP error connecting to the Formidable API', 'formidable' );
} else {
$json_res = json_decode( $body, true );
if ( null !== $json_res ) {
if ( is_array( $json_res ) && isset( $json_res['error'] ) ) {
$message = $json_res['error'];
} else {
$message = $json_res;
}
} elseif ( isset( $resp['response'] ) && isset( $resp['response']['code'] ) ) {
/* translators: %1$s: Error code, %2$s: Error message */
$message = sprintf( __( 'There was a %1$s error: %2$s', 'formidable' ), $resp['response']['code'], $resp['response']['message'] . ' ' . $resp['body'] );
}
}
return $message;
}
public function manually_queue_update() {
$updates = new stdClass();
$updates->last_checked = 0;
$updates->response = array();
$updates->translations = array();
$updates->no_update = array();
$updates->checked = array();
set_site_transient( 'update_plugins', $updates );
}
}