<?php
if ( ! interface_exists( 'WPDesk_Requirement_Checker' ) ) {
require_once __DIR__ . '/Requirement_Checker.php';
}
if ( ! class_exists( 'WPDesk_Basic_Requirement_Checker' ) ) {
/**
* Checks requirements for plugin
* have to be compatible with PHP 5.3.x
*/
class WPDesk_Basic_Requirement_Checker implements WPDesk_Requirement_Checker {
const EXTENSION_NAME_OPENSSL = 'openssl';
const HOOK_ADMIN_NOTICES_ACTION = 'admin_notices';
const HOOK_PLUGIN_DEACTIVATED_ACTION = 'deactivated_plugin';
const HOOK_PLUGIN_ACTIVATED_ACTION = 'activated_plugin';
const PLUGIN_INFO_KEY_NICE_NAME = 'nice_name';
const PLUGIN_INFO_KEY_NAME = 'name';
const PLUGIN_INFO_VERSION = 'version';
const PLUGIN_INFO_FAKE_REQUIRED_MINIMUM_VERSION = '0.0';
const PLUGIN_INFO_APPEND_PLUGIN_DATA = 'required_version';
const PLUGIN_INFO_TRANSIENT_NAME = 'wpdesk_requirements_plugins_data';
const CACHE_TIME = 16;
const EXPIRATION_TIME = 'expiration_time';
const PLUGINS = 'plugins';
/** @var string */
protected $plugin_name;
/** @var string */
private $plugin_file;
/** @var string */
private $min_php_version;
/** @var string */
private $min_wp_version;
/** @var string|null */
private $min_wc_version = null;
/** @var int|null */
private $min_openssl_version = null;
/** @var array */
protected $plugin_require;
/** @var bool */
protected $should_check_plugin_versions = false;
/** @var array */
private $module_require;
/** @var array */
private $setting_require;
/** @var array */
protected $notices;
/** @var @string */
private $text_domain;
/**
* @var mixed|true
*/
private $use_transients;
/**
* @param string $plugin_file
* @param string $plugin_name
* @param string $text_domain
* @param string $php_version
* @param string $wp_version
* @param bool $use_transients
*/
public function __construct( $plugin_file, $plugin_name, $text_domain, $php_version, $wp_version, $use_transients = true ) {
$this->plugin_file = $plugin_file;
$this->plugin_name = $plugin_name;
$this->text_domain = $text_domain;
$this->use_transients = $use_transients;
$this->set_min_php_require( $php_version );
$this->set_min_wp_require( $wp_version );
$this->plugin_require = array();
$this->module_require = array();
$this->setting_require = array();
$this->notices = array();
}
/**
* @param string $version
*
* @return $this
*/
public function set_min_php_require( $version ) {
$this->min_php_version = $version;
return $this;
}
/**
* @param string $version
*
* @return $this
*/
public function set_min_wp_require( $version ) {
$this->min_wp_version = $version;
return $this;
}
/**
* @param string $version
*
* @return $this
*/
public function set_min_wc_require( $version ) {
$this->min_wc_version = $version;
return $this;
}
/**
* @param $version
*
* @return $this
*/
public function set_min_openssl_require( $version ) {
$this->min_openssl_version = $version;
return $this;
}
/**
* @param string $plugin_name Name in wp format dir/file.php
* @param string $nice_plugin_name Nice plugin name for better looks in notice
* @param string $plugin_require_version required plugin minimum version
*
* @return $this
*/
public function add_plugin_require( $plugin_name, $nice_plugin_name = null, $plugin_require_version = null ) {
if ( $plugin_require_version ) {
$this->should_check_plugin_versions = true;
}
$this->plugin_require[ $plugin_name ] = array(
self::PLUGIN_INFO_KEY_NAME => $plugin_name,
self::PLUGIN_INFO_KEY_NICE_NAME => $nice_plugin_name === null ? $plugin_name : $nice_plugin_name,
self::PLUGIN_INFO_VERSION => $plugin_require_version === null ?
self::PLUGIN_INFO_FAKE_REQUIRED_MINIMUM_VERSION : $plugin_require_version,
);
return $this;
}
/**
* Add plugin to require list. Plugin is from repository so we can ask for installation.
*
* @param string $plugin_name Name in wp format dir/file.php
* @param string $version Required version of the plugin.
* @param string $nice_plugin_name Nice plugin name for better looks in notice
*
* @return $this
*/
public function add_plugin_repository_require( $plugin_name, $version, $nice_plugin_name = null ) {
$this->plugin_require[ $plugin_name ] = array(
self::PLUGIN_INFO_KEY_NAME => $plugin_name,
self::PLUGIN_INFO_VERSION => $version,
'repository_url' => 'http://downloads.wordpress.org/plugin/' . dirname( $plugin_name ) . '.latest-stable.zip',
self::PLUGIN_INFO_KEY_NICE_NAME => $nice_plugin_name === null ? $plugin_name : $nice_plugin_name
);
return $this;
}
/**
* @param string $module_name
* @param string $nice_name Nice module name for better looks in notice
*
* @return $this
*/
public function add_php_module_require( $module_name, $nice_name = null ) {
if ( $nice_name === null ) {
$this->module_require[ $module_name ] = $module_name;
} else {
$this->module_require[ $module_name ] = $nice_name;
}
return $this;
}
/**
* @param string $setting
* @param mixed $value
*
* @return $this
*/
public function add_php_setting_require( $setting, $value ) {
$this->setting_require[ $setting ] = $value;
return $this;
}
/**
* Returns true if are requirements are met.
*
* @return bool
*/
public function are_requirements_met() {
$this->notices = $this->prepare_requirement_notices();
return count( $this->notices ) === 0;
}
/**
* @return array
*/
private function prepare_requirement_notices() {
$notices = array();
if ( ! self::is_php_at_least( $this->min_php_version ) ) {
$notices[] = $this->prepare_notice_message( sprintf( __( 'The “%s” plugin cannot run on PHP versions older than %s. Please contact your host and ask them to upgrade.',
$this->get_text_domain() ), esc_html( $this->plugin_name ), $this->min_php_version ) );
}
if ( ! self::is_wp_at_least( $this->min_wp_version ) ) {
$notices[] = $this->prepare_notice_message( sprintf( __( 'The “%s” plugin cannot run on WordPress versions older than %s. Please update WordPress.',
$this->get_text_domain() ), esc_html( $this->plugin_name ), $this->min_wp_version ) );
}
if ( $this->min_wc_version !== null && $this->can_check_plugin_version() && ! self::is_wc_at_least( $this->min_wc_version ) ) {
$notices[] = $this->prepare_notice_message( sprintf( __( 'The “%s” plugin cannot run on WooCommerce versions older than %s. Please update WooCommerce.',
$this->get_text_domain() ), esc_html( $this->plugin_name ), $this->min_wc_version ) );
}
if ( $this->min_openssl_version !== null && ! self::is_open_ssl_at_least( $this->min_openssl_version ) ) {
$notices[] = $this->prepare_notice_message( sprintf( __( 'The “%s” plugin cannot run without OpenSSL module version at least %s. Please update OpenSSL module.',
$this->get_text_domain() ), esc_html( $this->plugin_name ),
'0x' . dechex( $this->min_openssl_version ) ) );
}
$notices = $this->append_plugin_require_notices( $notices );
$notices = $this->append_module_require_notices( $notices );
$notices = $this->append_settings_require_notices( $notices );
if ( $this->should_check_plugin_versions ) {
$notices = $this->check_minimum_require_plugins_version_and_append_notices( $notices );
}
return $notices;
}
/**
* @param $min_version
*
* @return mixed
*/
public static function is_php_at_least( $min_version ) {
return version_compare( PHP_VERSION, $min_version, '>=' );
}
/**
* Prepares message in html format
*
* @param string $message
*
* @return string
*/
protected function prepare_notice_message( $message ) {
return '<div class="error"><p>' . $message . '</p></div>';
}
public function get_text_domain() {
return $this->text_domain;
}
/**
* @param string $min_version
*
* @return bool
*/
public static function is_wp_at_least( $min_version ) {
return version_compare( get_bloginfo( 'version' ), $min_version, '>=' );
}
/**
* Are plugins loaded so we can check the version
*
* @return bool
*/
private function can_check_plugin_version() {
return did_action( 'plugins_loaded' ) > 0;
}
/**
* Checks if plugin is active and have designated version. Needs to be enabled in deferred way.
*
* @param string $min_version
*
* @return bool
*/
public static function is_wc_at_least( $min_version ) {
return defined( 'WC_VERSION' ) &&
version_compare( WC_VERSION, $min_version, '>=' );
}
/**
* Checks if ssl version is valid
*
* @param int $required_version Version in hex. Version 9.6 is 0x000906000
*
* @return bool
* @see https://www.openssl.org/docs/man1.1.0/crypto/OPENSSL_VERSION_NUMBER.html
*
*/
public static function is_open_ssl_at_least( $required_version ) {
return defined( 'OPENSSL_VERSION_NUMBER' ) && OPENSSL_VERSION_NUMBER > (int) $required_version;
}
/**
* @param $notices array
*
* @return array
*/
private function check_minimum_require_plugins_version_and_append_notices( $notices ) {
$required_plugins = $this->retrieve_required_plugins_data();
if ( count( $required_plugins ) > 0 ) {
foreach ( $required_plugins as $plugin ) {
if ( version_compare( $plugin['Version'], $plugin[ self::PLUGIN_INFO_APPEND_PLUGIN_DATA ], '<' ) ) {
$notices[] = $this->prepare_notice_message(
sprintf(
__( 'The “%1$s” plugin requires at least %2$s version of %3$s to work correctly. Please update it to its latest release.', $this->get_text_domain() ),
esc_html( $this->plugin_name ),
$plugin[ self::PLUGIN_INFO_APPEND_PLUGIN_DATA ],
$plugin['Name']
)
);
}
}
}
return $notices;
}
/**
* Check the plugins directory and retrieve all plugin files with plugin data.
*
* @param bool $use_transients
*
* @return array In format [ 'plugindir/pluginfile.php' => ['Name' => 'Plugin Name', 'Version' => '1.0.1', ...], ]
*/
private static function retrieve_plugins_data_in_transient( $use_transients = true ) {
$current_time = time();
$plugins = self::get_plugins_data_from_cache( $use_transients, $current_time );
if ( $plugins === false ) {
static $never_executed = true;
if ( $never_executed ) {
$never_executed = false;
/** Required when WC starts later and these data should be in cache */
add_filter( 'extra_plugin_headers', function( $headers = array() ) {
$headers[] = 'WC tested up to';
$headers[] = 'WC requires at least';
$headers[] = 'Woo';
return array_unique( $headers );
} );
}
if ( ! function_exists( 'get_plugins' ) ) {
require_once ABSPATH . '/wp-admin/includes/plugin.php';
}
$plugins = function_exists( 'get_plugins' ) ? get_plugins() : array();
self::update_plugins_data_in_cache( $plugins, $use_transients, $current_time );
}
return $plugins;
}
/**
* @param bool $use_transients
* @param int $current_time
*
* @return array|false
*/
private static function get_plugins_data_from_cache( $use_transients, $current_time ) {
if ( $use_transients ) {
return get_transient( self::PLUGIN_INFO_TRANSIENT_NAME );
} else {
$plugins_option_value = get_option( self::PLUGIN_INFO_TRANSIENT_NAME );
if ( is_array( $plugins_option_value )
&& isset( $plugins_option_value[ self::EXPIRATION_TIME ], $plugins_option_value[ self::PLUGINS ] )
&& (int) $plugins_option_value[ self::EXPIRATION_TIME ] > $current_time
) {
return $plugins_option_value[ self::PLUGINS ];
}
}
return false;
}
/**
* @param array $plugins
* @param bool $use_transients
* @param int $current_time
*/
private static function update_plugins_data_in_cache( $plugins, $use_transients, $current_time ) {
if ( $use_transients ) {
set_transient( self::PLUGIN_INFO_TRANSIENT_NAME, $plugins, self::CACHE_TIME );
} else {
update_option( self::PLUGIN_INFO_TRANSIENT_NAME, array(
self::EXPIRATION_TIME => $current_time + self::CACHE_TIME,
self::PLUGINS => $plugins,
) );
}
}
/**
* Check the plugins directory and retrieve all required plugin files with plugin data.
*
* @return array In format [ 'plugindir/pluginfile.php' => ['Name' => 'Plugin Name', 'Version' => '1.0.1', 'required_version' => '1.0.2']... ]
*/
private function retrieve_required_plugins_data() {
$require_plugins = array();
$plugins = self::retrieve_plugins_data_in_transient( $this->use_transients );
if ( is_array( $plugins ) ) {
if ( count( $plugins ) > 0 ) {
if ( ! empty( $this->plugin_require ) ) {
foreach ( $this->plugin_require as $plugin ) {
$plugin_file_name = $plugin[ self::PLUGIN_INFO_KEY_NAME ];
$plugin_version = $plugin[ self::PLUGIN_INFO_VERSION ];
if ( self::is_wp_plugin_active( $plugin_file_name ) ) {
$require_plugins[ $plugin_file_name ] = $plugins[ $plugin_file_name ];
$require_plugins[ $plugin_file_name ][ self::PLUGIN_INFO_APPEND_PLUGIN_DATA ] = $plugin_version;
}
}
}
}
}
return $require_plugins;
}
/**
* @param array $notices
*
* @return array
*/
private function append_plugin_require_notices( $notices ) {
if ( count( $this->plugin_require ) > 0 ) {
foreach ( $this->plugin_require as $plugin_name => $plugin_info ) {
$notice = null;
if ( isset( $plugin_info['repository_url'] ) ) {
$notice = $this->prepare_plugin_repository_require_notice( $plugin_info );
} elseif ( ! self::is_wp_plugin_active( $plugin_name ) ) {
$notice = $this->prepare_notice_message( sprintf( __( 'The “%s” plugin cannot run without %s active. Please install and activate %s plugin.',
$this->get_text_domain() ), esc_html( $this->plugin_name ),
esc_html( basename( $plugin_info[ self::PLUGIN_INFO_KEY_NICE_NAME ] ) ),
esc_html( basename( $plugin_info[ self::PLUGIN_INFO_KEY_NICE_NAME ] ) ) ) );
}
if ( $notice !== null ) {
$notices[] = $notice;
}
}
}
return $notices;
}
/**
* Prepares WP install url and injects info about plugin to the WP update engine.
*
* @param array $plugin_info
*
* @return string
*/
private function prepare_plugin_repository_install_url( $plugin_info ) {
$slug = basename( $plugin_info[ self::PLUGIN_INFO_KEY_NAME ] );
$install_url = self_admin_url( 'update.php?action=install-plugin&plugin=' . $slug );
if ( function_exists( 'wp_nonce_url' ) && function_exists( 'wp_create_nonce' ) ) {
$install_url = wp_nonce_url( $install_url, 'install-plugin_' . $slug );
}
add_filter( 'plugins_api', function( $api, $action, $args ) use ( $plugin_info, $slug ) {
if ( 'plugin_information' !== $action ||
false !== $api ||
! isset( $args->slug ) ||
$slug !== $args->slug
) {
return $api;
}
$api = new stdClass();
$api->name = $plugin_info['nice_name']; // self in closures requires 5.4
$api->version = '';
$api->download_link = esc_url( $plugin_info['repository_url'] ); // self in closures requires 5.4
return $api;
}, 10, 3 );
return $install_url;
}
/**
* @param array $plugin_info Internal required plugin info data.
*
* @return string|null Return null if no notice is needed.
*/
private function prepare_plugin_repository_require_notice( $plugin_info ) {
$name = $plugin_info[ self::PLUGIN_INFO_KEY_NAME ];
$nice_name = $plugin_info[ self::PLUGIN_INFO_KEY_NICE_NAME ];
if ( ! self::is_wp_plugin_active( $name ) ) {
if ( ! self::is_wp_plugin_installed( $name, $this->use_transients ) ) {
$install_url = $this->prepare_plugin_repository_install_url( $plugin_info );
return $this->prepare_notice_message( sprintf( wp_kses( __( 'The “%s” plugin requires free %s plugin. <a href="%s">Install %s</a>',
$this->get_text_domain() ), array( 'a' => array( 'href' => array() ) ) ),
$this->plugin_name, $nice_name, esc_url( $install_url ), $nice_name ) );
}
$activate_url = 'plugins.php?action=activate&plugin=' . urlencode( $plugin_info[ self::PLUGIN_INFO_KEY_NAME ] ) . '&plugin_status=all&paged=1&s';
if ( function_exists( 'wp_create_nonce' ) ) {
$activate_url .= '&_wpnonce=' . urlencode( wp_create_nonce( 'activate-plugin_' . $name ) );
}
return $this->prepare_notice_message( sprintf( wp_kses( __( 'The “%s” plugin requires activating %s plugin. <a href="%s">Activate %s</a>',
$this->get_text_domain() ), array( 'a' => array( 'href' => array() ) ) ),
$this->plugin_name, $nice_name, esc_url( admin_url( $activate_url ) ), $nice_name ) );
}
return null;
}
/**
* Checks if plugin is active. Needs to be used in deferred way.
*
* @param string $plugin_file
*
* @return bool
*/
public static function is_wp_plugin_active( $plugin_file ) {
$active_plugins = (array) get_option( 'active_plugins', array() );
if ( is_multisite() ) {
$active_plugins = array_merge( $active_plugins, get_site_option( 'active_sitewide_plugins', array() ) );
}
return in_array( $plugin_file, $active_plugins ) || array_key_exists( $plugin_file, $active_plugins );
}
/**
* Checks if plugin is installed. Needs to be enabled in deferred way.
*
* @param string $plugin_file
* @param bool $use_transients
*
* @return bool
*/
public static function is_wp_plugin_installed( $plugin_file, $use_transients = false ) {
$plugins_data = self::retrieve_plugins_data_in_transient( $use_transients );
return array_key_exists( $plugin_file, (array) $plugins_data );
}
/**
* @param array $notices
*
* @return array
*/
private function append_module_require_notices( $notices ) {
if ( count( $this->module_require ) > 0 ) {
foreach ( $this->module_require as $module_name => $nice_module_name ) {
if ( ! self::is_module_active( $module_name ) ) {
$notices[] = $this->prepare_notice_message( sprintf( __( 'The “%s” plugin cannot run without %s PHP module installed. Please contact your host and ask them to install %s.',
$this->get_text_domain() ), esc_html( $this->plugin_name ),
esc_html( basename( $nice_module_name ) ), esc_html( basename( $nice_module_name ) ) ) );
}
}
}
return $notices;
}
/**
* @param string $name
*
* @return bool
*/
public static function is_module_active( $name ) {
return extension_loaded( $name );
}
/**
* @param array $notices
*
* @return array
*/
private function append_settings_require_notices( $notices ) {
if ( count( $this->setting_require ) > 0 ) {
foreach ( $this->setting_require as $setting => $value ) {
if ( ! self::is_setting_set( $setting, $value ) ) {
$notices[] = $this->prepare_notice_message( sprintf( __( 'The “%s” plugin cannot run without %s PHP setting set to %s. Please contact your host and ask them to set %s.',
$this->get_text_domain() ), esc_html( $this->plugin_name ),
esc_html( basename( $setting ) ),
esc_html( basename( $value ) ), esc_html( basename( $setting ) ) ) );
}
}
}
return $notices;
}
/**
* @param string $name
* @param mixed $value
*
* @return bool
*/
public static function is_setting_set( $name, $value ) {
return ini_get( $name ) === (string) $value;
}
/**
* @return void
*
* @deprecated use render_notices or disable_plugin
*/
public function disable_plugin_render_notice() {
add_action( self::HOOK_ADMIN_NOTICES_ACTION, array(
$this,
'handle_render_notices_action'
) );
}
/**
* Renders requirement notices in admin panel
*
* @return void
*/
public function render_notices() {
add_action( self::HOOK_ADMIN_NOTICES_ACTION, array(
$this,
'handle_render_notices_action'
) );
}
/**
* Renders requirement notices in admin panel
*
* @return void
*/
public function disable_plugin() {
add_action( self::HOOK_ADMIN_NOTICES_ACTION, array(
$this,
'handle_deactivate_action'
) );
}
/**
* @return void
* @internal Do not use as public. Public only for wp action.
*
*/
public function handle_deactivate_action() {
if ( isset( $this->plugin_file ) ) {
deactivate_plugins( plugin_basename( $this->plugin_file ) );
$this->clear_plugin_info_data();
}
}
/**
* Triggers the transient delete after plugin deactivated
*
* @return void
*/
public function transient_delete_on_plugin_version_changed() {
add_action( self::HOOK_PLUGIN_DEACTIVATED_ACTION, array(
$this,
'clear_plugin_info_data'
) );
add_action( self::HOOK_PLUGIN_ACTIVATED_ACTION, array(
$this,
'clear_plugin_info_data'
) );
}
/**
* Handles the transient delete
*
* @return void
*/
public function clear_plugin_info_data() {
delete_transient( self::PLUGIN_INFO_TRANSIENT_NAME );
delete_option( self::PLUGIN_INFO_TRANSIENT_NAME );
}
/**
* Should be called as WordPress action
*
* @return void
* @internal Do not use as public. Public only for wp action.
*
*/
public function handle_render_notices_action() {
foreach ( $this->notices as $notice ) {
echo $notice;
}
}
}
}