File: /home/sps/public_html/wp-content/plugins/nextgen-gallery/src/Util/LicenseHelper.php
<?php
namespace Imagely\NGG\Util;
// phpcs:disable Squiz.Commenting
/**
* License Helper - Shared utilities for license verification and plugin installation
*/
class LicenseHelper {
/**
* Verify license key with external licensing server
*
* @param string $license_key The license key to verify.
* @return array{level: string, status: string}|\WP_Error
*/
public static function verify_license_with_server( $license_key ) {
$url = 'https://members.photocrati.com/wp-json/licensing/v1/register_site';
$query_args = [
'license_key' => $license_key,
'site_url' => site_url(),
];
$args = [
'method' => 'POST',
'timeout' => 45,
'redirection' => 5,
'httpversion' => '1.0',
'body' => $query_args,
'user-agent' => 'ImagelyUpdates/' . NGG_PLUGIN_VERSION . '; ' . get_bloginfo( 'url' ),
'blocking' => true,
];
$response = wp_safe_remote_post( $url, $args );
if ( is_wp_error( $response ) ) {
return $response;
}
$http_code = wp_remote_retrieve_response_code( $response );
$result = json_decode( wp_remote_retrieve_body( $response ) );
// Check for API errors
if ( isset( $result->error ) && '' !== $result->error ) {
return new \WP_Error(
'license_error',
self::get_error_message( $result->error )
);
}
$valid = in_array( $result->status ?? '', [ 'active', 'inactive', 'disabled' ], true );
// Check if status is valid
if ( 200 !== $http_code || ! $valid ) {
if ( 'expired' === ( $result->status ?? '' ) ) {
return new \WP_Error(
'license_expired',
self::get_error_message( 'license_expired' )
);
}
return new \WP_Error(
'license_invalid',
self::get_error_message( null )
);
}
$product = $result->level ?? false;
if ( ! $product ) {
return new \WP_Error(
'product_not_found',
'Product not found.'
);
}
// Check if limit is reached
if ( '' === ( $result->is_at_limit ?? '' ) ) {
return new \WP_Error(
'license_limit_reached',
'Sorry, you have reached the limit of sites for this license key.'
);
}
return [
'level' => $product,
'status' => $result->status,
];
}
/**
* Get download URL for the Pro plugin
*
* @param string $license_key The license key.
* @param string $product The product name (pro, plus, or starter).
* @return string|\WP_Error
*/
public static function get_download_url( $license_key, $product ) {
$url = 'https://members.photocrati.com/wp-json/licensing/v1/get_update?product=nextgen-gallery-' . $product . '&license_key=' . $license_key . '&site_url=' . site_url();
$args = [
'method' => 'GET',
'timeout' => 45,
'redirection' => 5,
'httpversion' => '1.0',
'user-agent' => 'ImagelyUpdates/' . NGG_PLUGIN_VERSION . '; ' . get_bloginfo( 'url' ),
'blocking' => true,
];
$response = wp_safe_remote_get( $url, $args );
if ( is_wp_error( $response ) ) {
return $response;
}
$http_code = wp_remote_retrieve_response_code( $response );
$body = wp_remote_retrieve_body( $response );
if ( 200 !== $http_code ) {
return new \WP_Error(
'download_failed',
'Failed to get download URL'
);
}
$download_url = json_decode( $body )->download_url ?? '';
if ( empty( $download_url ) ) {
return new \WP_Error(
'download_url_missing',
'Download URL not found in response'
);
}
return $download_url;
}
/**
* Install a plugin from a download URL
*
* @param string $download_url The download URL for the plugin.
* @param bool $silent Whether to suppress output (for REST) or use set_current_screen (for AJAX).
* @param bool $activate Whether to activate the plugin after installation.
* @return array{basename: string, activated: bool}|\WP_Error
*/
public static function install_plugin( $download_url, $silent = true, $activate = true ) {
if ( empty( $download_url ) ) {
return new \WP_Error(
'download_url_required',
'Download URL is required'
);
}
// Ensure required WordPress files are loaded
if ( ! function_exists( 'request_filesystem_credentials' ) ) {
require_once ABSPATH . 'wp-admin/includes/file.php';
}
// Set current screen for AJAX context (non-silent mode)
if ( ! $silent ) {
set_current_screen();
}
$method = '';
$url = esc_url_raw( admin_url( 'admin.php?page=imagely-settings' ) );
ob_start();
$creds = request_filesystem_credentials( $url, $method, false, false, null );
if ( false === $creds ) {
$form = ob_get_clean();
return new \WP_Error(
'filesystem_credentials_required',
'Filesystem credentials required',
[ 'form' => $form ]
);
}
if ( ! WP_Filesystem( $creds ) ) {
ob_start();
request_filesystem_credentials( $url, $method, true, false, null );
$form = ob_get_clean();
return new \WP_Error(
'filesystem_not_accessible',
'Filesystem not accessible',
[ 'form' => $form ]
);
}
ob_end_clean();
require_once ABSPATH . 'wp-admin/includes/class-wp-upgrader.php';
// Check if Installer_Skin class exists
if ( ! class_exists( 'Imagely\NGG\Util\Installer_Skin' ) ) {
return new \WP_Error(
'installer_skin_missing',
'Installer_Skin class not found'
);
}
$skin = new \Imagely\NGG\Util\Installer_Skin();
$installer = new \Plugin_Upgrader( $skin );
$result = $installer->install( $download_url );
wp_cache_flush();
if ( is_wp_error( $result ) ) {
return $result;
}
if ( $installer->plugin_info() ) {
$plugin_basename = $installer->plugin_info();
$activated = false;
// Try to activate the plugin if requested
if ( $activate ) {
$activation_result = activate_plugin( $plugin_basename, false, false, true );
$activated = ! is_wp_error( $activation_result );
}
return [
'basename' => $plugin_basename,
'activated' => $activated,
];
}
return new \WP_Error(
'install_failed',
'Failed to install plugin'
);
}
/**
* Get the current license type/level installed
*
* @return string
*/
public static function get_license_type() {
if ( defined( 'NGG_PRO_PLUGIN_BASENAME' ) ) {
return 'pro';
} elseif ( defined( 'NGG_PLUS_PLUGIN_BASENAME' ) ) {
return 'plus';
} elseif ( defined( 'NGG_STARTER_PLUGIN_BASENAME' ) ) {
return 'starter';
}
return 'lite';
}
/**
* Check if a specific license level is already installed (active or inactive)
*
* @param string $product The product level to check (pro, plus, or starter).
* @return bool True if installed (active or not), false otherwise.
*/
public static function is_product_installed( $product ) {
if ( ! function_exists( 'get_plugins' ) ) {
require_once ABSPATH . 'wp-admin/includes/plugin.php';
}
$plugin_basenames = [
'pro' => 'nextgen-gallery-pro/nggallery-pro.php',
'plus' => 'nextgen-gallery-plus/nggallery-plus.php',
'starter' => 'nextgen-gallery-starter/nggallery-starter.php',
];
if ( ! isset( $plugin_basenames[ $product ] ) ) {
return false;
}
$all_plugins = get_plugins();
return isset( $all_plugins[ $plugin_basenames[ $product ] ] );
}
/**
* Get error message for license errors
*
* @param string|null $error_code The error code.
* @return string
*/
public static function get_error_message( $error_code ) {
if ( ! isset( $error_code ) ) {
return 'Something went wrong, please try again later.';
}
$messages = [
'empty_site_url' => __( 'The site URL is missing. Please provide a valid URL.', 'nggallery' ),
'license_not_found' => __( 'The license key was not found. Please verify and try again.', 'nggallery' ),
'license_status_expired' => __( 'The license key has expired. Please renew your license.', 'nggallery' ),
'license_expired' => __( 'The license key has expired. Please renew your license.', 'nggallery' ),
'license_status_disabled' => __( 'The license key has not been activated yet. Please contact support.', 'nggallery' ),
'license_disabled' => __( 'The license key has not been activated yet. Please contact support.', 'nggallery' ),
'license_status_revoked' => __( 'The license key has been revoked. Please contact support.', 'nggallery' ),
'license_revoked' => __( 'The license key has been revoked. Please contact support.', 'nggallery' ),
'license_limit_installations' => __( 'The license key has reached the maximum number of installations.', 'nggallery' ),
];
return $messages[ $error_code ] ?? __( 'An unknown error occurred. Please try again.', 'nggallery' );
}
}