first commit

wp-content/plugins/flexible-shipping/vendor_prefixed/wpdesk/wp-basic-requirements/composer.json

@@ -0,0 +1,51 @@
+{
+    "name": "wpdesk\/wp-basic-requirements",
+    "authors": [
+        {
+            "name": "Krzysiek",
+            "email": "krzysiek@wpdesk.pl"
+        }
+    ],
+    "require": {
+        "php": ">=5.3"
+    },
+    "require-dev": {
+        "php": ">=5.5",
+        "phpunit\/phpunit": "^8 | ^9",
+        "mockery\/mockery": "*",
+        "10up\/wp_mock": "*",
+        "wimg\/php-compatibility": "^8",
+        "wpdesk\/wp-code-sniffer": "^1.2"
+    },
+    "autoload": {},
+    "autoload-dev": {
+        "classmap": [
+            "src",
+            "tests"
+        ]
+    },
+    "extra": {
+        "text-domain": "wp-basic-requirements",
+        "translations-folder": "lang",
+        "po-files": {
+            "pl_PL": "pl_PL.po",
+            "en_AU": "en_AU.po",
+            "en_CA": "en_CA.po",
+            "en_GB": "en_GB.po",
+            "de_DE": "de_DE.po"
+        }
+    },
+    "scripts": {
+        "phpcs": "phpcs",
+        "phpunit-unit": "phpunit --configuration phpunit-unit.xml --coverage-text --colors=never",
+        "phpunit-unit-fast": "phpunit --configuration phpunit-unit.xml --no-coverage",
+        "phpunit-integration": "phpunit --configuration phpunit-integration.xml --coverage-text --colors=never",
+        "phpunit-integration-fast": "phpunit --configuration phpunit-integration.xml --no-coverage",
+        "docs": "apigen generate"
+    },
+    "config": {
+        "allow-plugins": {
+            "dealerdirect\/phpcodesniffer-composer-installer": true
+        }
+    }
+}

wp-content/plugins/flexible-shipping/vendor_prefixed/wpdesk/wp-basic-requirements/src/Basic_Requirement_Checker.php

@@ -0,0 +1,602 @@
+<?php
+
+namespace FSVendor;
+
+if (!\interface_exists('FSVendor\\WPDesk_Requirement_Checker')) {
+    require_once __DIR__ . '/Requirement_Checker.php';
+}
+if (!\class_exists('FSVendor\\WPDesk_Basic_Requirement_Checker')) {
+    /**
+     * Checks requirements for plugin
+     * have to be compatible with PHP 5.3.x
+     */
+    class WPDesk_Basic_Requirement_Checker implements \FSVendor\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 &#8220;%s&#8221; 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 &#8220;%s&#8221; 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 &#8220;%s&#8221; 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 &#8220;%s&#8221; 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[] = $this->prepare_notice_message(\sprintf(\__('The &#8220;%1$s&#8221; 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 &#8220;%s&#8221; 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 &#8220;%s&#8221; 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 &#8220;%s&#8221; 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 &#8220;%s&#8221; 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 &#8220;%s&#8221; 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;
+            }
+        }
+    }
+}

wp-content/plugins/flexible-shipping/vendor_prefixed/wpdesk/wp-basic-requirements/src/Basic_Requirement_Checker_Factory.php

@@ -0,0 +1,62 @@
+<?php
+
+namespace FSVendor;
+
+if (!\class_exists('FSVendor\\Basic_Requirement_Checker')) {
+    require_once __DIR__ . '/Basic_Requirement_Checker.php';
+}
+if (!\class_exists('FSVendor\\WPDesk_Basic_Requirement_Checker_With_Update_Disable')) {
+    require_once __DIR__ . '/Basic_Requirement_Checker_With_Update_Disable.php';
+}
+/**
+ * Falicitates createion of requirement checker
+ */
+class WPDesk_Basic_Requirement_Checker_Factory
+{
+    const LIBRARY_TEXT_DOMAIN = 'flexible-shipping';
+    /**
+     * Creates a simplest possible version of requirement checker.
+     *
+     * @param string $plugin_file
+     * @param string $plugin_name
+     * @param string|null $text_domain Text domain to use. If null try to use library text domain.
+     *
+     * @return WPDesk_Requirement_Checker
+     */
+    public function create_requirement_checker($plugin_file, $plugin_name, $text_domain = null)
+    {
+        return new \FSVendor\WPDesk_Basic_Requirement_Checker($plugin_file, $plugin_name, $text_domain, null, null);
+    }
+    /**
+     * Creates a requirement checker according to given requirements array info.
+     *
+     * @param string $plugin_file
+     * @param string $plugin_name
+     * @param string $text_domain Text domain to use. If null try to use library text domain.
+     * @param array $requirements Requirements array as given by plugin.
+     *
+     * @return WPDesk_Requirement_Checker
+     */
+    public function create_from_requirement_array($plugin_file, $plugin_name, $requirements, $text_domain = null)
+    {
+        $requirements_checker = new \FSVendor\WPDesk_Basic_Requirement_Checker_With_Update_Disable($plugin_file, $plugin_name, $text_domain, $requirements['php'], $requirements['wp'], (bool) \wp_using_ext_object_cache());
+        if (isset($requirements['plugins'])) {
+            foreach ($requirements['plugins'] as $requirement) {
+                $version = isset($requirement['version']) ? $requirement['version'] : null;
+                $requirements_checker->add_plugin_require($requirement['name'], $requirement['nice_name'], $version);
+            }
+            $requirements_checker->transient_delete_on_plugin_version_changed();
+        }
+        if (isset($requirements['repo_plugins'])) {
+            foreach ($requirements['repo_plugins'] as $requirement) {
+                $requirements_checker->add_plugin_repository_require($requirement['name'], $requirement['version'], $requirement['nice_name']);
+            }
+        }
+        if (isset($requirements['modules'])) {
+            foreach ($requirements['modules'] as $requirement) {
+                $requirements_checker->add_php_module_require($requirement['name'], $requirement['nice_name']);
+            }
+        }
+        return $requirements_checker;
+    }
+}

wp-content/plugins/flexible-shipping/vendor_prefixed/wpdesk/wp-basic-requirements/src/Basic_Requirement_Checker_With_Update_Disable.php

@@ -0,0 +1,46 @@
+<?php
+
+namespace FSVendor;
+
+if (!\class_exists('FSVendor\\WPDesk_Basic_Requirement_Checker')) {
+    require_once __DIR__ . '/Basic_Requirement_Checker.php';
+}
+if (!\class_exists('FSVendor\\WPDesk_Basic_Requirement_Checker_With_Update_Disable')) {
+    /**
+     * Checks requirements for plugin. When required plugin is updated right now, then say that requirements are not met temporary.
+     * have to be compatible with PHP 5.2.x
+     */
+    class WPDesk_Basic_Requirement_Checker_With_Update_Disable extends \FSVendor\WPDesk_Basic_Requirement_Checker
+    {
+        /**
+         * Returns true if are requirements are met.
+         *
+         * @return bool
+         */
+        public function are_requirements_met()
+        {
+            $has_been_met = parent::are_requirements_met();
+            if (!$has_been_met) {
+                return $has_been_met;
+            }
+            foreach ($this->plugin_require as $name => $plugin_info) {
+                if ($this->is_currently_updated($name)) {
+                    $nice_name = $plugin_info[self::PLUGIN_INFO_KEY_NICE_NAME];
+                    $this->notices[] = $this->prepare_notice_message(\sprintf(\__('The &#8220;%s&#8221; plugin is temporarily disabled since the required %s plugin is being upgraded.', $this->get_text_domain()), $this->plugin_name, $nice_name, $nice_name));
+                }
+            }
+            return \count($this->notices) === 0;
+        }
+        /**
+         * Is plugin upgrading right now?
+         *
+         * @param string $name
+         *
+         * @return bool
+         */
+        private function is_currently_updated($name)
+        {
+            return isset($_GET['action']) && $_GET['action'] === 'upgrade-plugin' && $_GET['plugin'] === $name;
+        }
+    }
+}

wp-content/plugins/flexible-shipping/vendor_prefixed/wpdesk/wp-basic-requirements/src/Requirement_Checker.php

@@ -0,0 +1,74 @@
+<?php
+
+namespace FSVendor;
+
+/**
+ * Checks requirements for plugin
+ * have to be compatible with PHP 5.2.x
+ */
+interface WPDesk_Requirement_Checker
+{
+    /**
+     * @param string $version
+     *
+     * @return $this
+     */
+    public function set_min_php_require($version);
+    /**
+     * @param string $version
+     *
+     * @return $this
+     */
+    public function set_min_wp_require($version);
+    /**
+     * @param string $version
+     *
+     * @return $this
+     */
+    public function set_min_wc_require($version);
+    /**
+     * @param $version
+     *
+     * @return $this
+     */
+    public function set_min_openssl_require($version);
+    /**
+     * @param string $plugin_name
+     * @param string $nice_plugin_name Nice plugin name for better looks in notice
+     *
+     * @return $this
+     */
+    public function add_plugin_require($plugin_name, $nice_plugin_name = null);
+    /**
+     * @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);
+    /**
+     * @param string $setting
+     * @param mixed $value
+     *
+     * @return $this
+     */
+    public function add_php_setting_require($setting, $value);
+    /**
+     * @return bool
+     */
+    public function are_requirements_met();
+    /**
+     * @return void
+     */
+    public function disable_plugin_render_notice();
+    /**
+     * @return void
+     */
+    public function render_notices();
+    /**
+     * Renders requirement notices in admin panel
+     *
+     * @return void
+     */
+    public function disable_plugin();
+}

wp-content/plugins/flexible-shipping/vendor_prefixed/wpdesk/wp-basic-requirements/src/Requirement_Checker_Factory.php

@@ -0,0 +1,17 @@
+<?php
+
+namespace FSVendor;
+
+interface WPDesk_Requirement_Checker_Factory
+{
+    /**
+     * @param $plugin_file
+     * @param $plugin_name
+     * @param $text_domain
+     * @param $php_version
+     * @param $wp_version
+     *
+     * @return WPDesk_Requirement_Checker
+     */
+    public function create_requirement_checker($plugin_file, $plugin_name, $text_domain);
+}