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Edit: /home/melaqxso/nymetrocualumni.com/wp-content/plugins/give-square/give-square.php

<?php
/**
 * Plugin Name: Give - Square
 * Plugin URI:  https://givewp.com/addons/square/
 * Description: Adds support to accept donations via the Square Payment gateway.
 * Version:     2.0.2
 * Author:      GiveWP
 * Author URI:  https://givewp.com
 * Requires at least: 5.0
 * Requires PHP: 7.2
 * Text Domain: give-square
 * Domain Path: /languages
 * GitHub URI: https://github.com/impress-org/give-square.git
 */

// Exit if accessed directly.
if (!defined('ABSPATH')) {
    exit;
}

if (!class_exists('Give_Square')) :

/**
     * Class Give_Square.
     *
     * @since 1.0.0
     */
    class Give_Square
    {

/**
         * Create Single Give Square Instance.
         *
         * @var $instance
         */
        private static $instance;

/**
         * Notices (array)
         *
         * @since 1.0.0
         *
         * @var array
         */
        public $notices = [];

/**
         * Returns single instance of this class.
         *
         * @since 1.0.0
         *
         * @return Give_Square
         */
        public static function get_instance()
        {
            if (null === self::$instance) {
                self::$instance = new self();
                self::$instance->setup();
            }

return self::$instance;
        }

/**
         * Setup Give Square.
         *
         * @since  1.0.0
         * @access private
         */
        private function setup()
        {
            // Setup constants.
            $this->setup_constants();

// Give init hook.
            add_action('give_init', [$this, 'init'], 10);
            add_action('admin_init', [$this, 'check_environment'], 999);
            add_action('admin_notices', [$this, 'admin_notices'], 15);
        }

/**
         * Initialize Plugin after plugins loaded.
         *
         * @since 1.0.0
         */
        public function init()
        {
            // Load Text Domain for Give - Square Integration.
            load_plugin_textdomain('give-square', false, GIVE_SQUARE_BASENAME . '/languages');
            $this->licensing();

if (!$this->get_environment_warning()) {
                return;
            }

$this->includes();
            $this->activation_banner();
        }

/**
         * Setup Constants.
         *
         * @since 1.0.0
         */
        public function setup_constants()
        {
            if (!defined('GIVE_SQUARE_VERSION')) {
                define('GIVE_SQUARE_VERSION', '2.0.2');
            }

if (!defined('GIVE_SQUARE_MIN_GIVE_VER')) {
                define('GIVE_SQUARE_MIN_GIVE_VER', '2.25.1');
            }

if (!defined('GIVE_SQUARE_PLUGIN_FILE')) {
                define('GIVE_SQUARE_PLUGIN_FILE', __FILE__);
            }

if (!defined('GIVE_SQUARE_PLUGIN_DIR')) {
                define('GIVE_SQUARE_PLUGIN_DIR', dirname(GIVE_SQUARE_PLUGIN_FILE));
            }

if (!defined('GIVE_SQUARE_PLUGIN_URL')) {
                define('GIVE_SQUARE_PLUGIN_URL', plugin_dir_url(GIVE_SQUARE_PLUGIN_FILE));
            }

if (!defined('GIVE_SQUARE_BASENAME')) {
                define('GIVE_SQUARE_BASENAME', plugin_basename(GIVE_SQUARE_PLUGIN_FILE));
            }
        }

/**
         * Include Required Files.
         *
         * @since 1.0.0
         */
        private function includes()
        {
            require_once GIVE_SQUARE_PLUGIN_DIR . '/includes/admin/activation.php';
            require_once GIVE_SQUARE_PLUGIN_DIR . '/includes/admin/admin-actions.php';
            require_once GIVE_SQUARE_PLUGIN_DIR . '/includes/admin/admin-filters.php';
            require_once GIVE_SQUARE_PLUGIN_DIR . '/includes/admin/upgrade-functions.php';
            require_once GIVE_SQUARE_PLUGIN_DIR . '/vendor/autoload.php';
            require_once GIVE_SQUARE_PLUGIN_DIR . '/includes/actions.php';
            require_once GIVE_SQUARE_PLUGIN_DIR . '/includes/filters.php';
            require_once GIVE_SQUARE_PLUGIN_DIR . '/includes/helpers.php';
            require_once GIVE_SQUARE_PLUGIN_DIR . '/includes/scripts.php';
        }

/**
         * Plugin Licensing.
         *
         * @since 1.0.0
         */
        public function licensing()
        {
            if (class_exists('Give_License')) {
                new Give_License(
                    GIVE_SQUARE_PLUGIN_FILE,
                    'Square Gateway',
                    GIVE_SQUARE_VERSION,
                    'WordImpress',
                    'square_license_key'
                );
            }
        }

/**
         * Check plugin environment.
         *
         * @since  1.0.0
         * @access public
         *
         * @return bool
         */
        public function check_environment()
        {
            // Flag to check whether plugin file is loaded or not.
            $is_working = true;

// Load plugin helper functions.
            if (!function_exists('is_plugin_active')) {
                require_once ABSPATH . '/wp-admin/includes/plugin.php';
            }

// Check if Give Core plugin is active or not.
            $is_give_active = defined('GIVE_PLUGIN_BASENAME') ? is_plugin_active(GIVE_PLUGIN_BASENAME) : false;

if (empty($is_give_active)) {
                // Show admin notice.
                $this->add_admin_notice(
                    'prompt_give_activate',
                    'error',
                    sprintf(
                    /* translators: 1. Strong Text, 2. Intro Text, 3. URL, 4. Plugin Name, 5. End Text. */
                        '<strong>%1$s</strong> %2$s <a href="%3$s" target="_blank">%4$s</a> %5$s',
                        __('Activation Error:', 'give-square'),
                        __('You must have the', 'give-square'),
                        esc_url_raw('https://givewp.com'),
                        __('Give', 'give-square'),
                        __('plugin installed and activated for Give - Square to activate.', 'give-square')
                    )
                );
                $is_working = false;
            }

return $is_working;
        }

/**
         * Check plugin for Give environment.
         *
         * @since 1.0.0
         * @access public
         *
         * @return bool
         */
        public function get_environment_warning()
        {
            // Flag to check whether plugin file is loaded or not.
            $is_working = true;

// Verify dependency cases.
            if (
                defined('GIVE_VERSION')
                && version_compare(GIVE_VERSION, GIVE_SQUARE_MIN_GIVE_VER, '<')
            ) {
                // Display notice when minimum Give Core plugin version is not found.
                $this->add_admin_notice(
                    'prompt_give_incompatible',
                    'error',
                    sprintf(
                    /* translators: 1. Strong Text, 2. Intro Text, 3. URL, 4. Plugin Name, 5. Plugin Text, 6. Plugin Version, 7. End Text */
                        '<strong>%1$s</strong> %2$s <a href="%3$s" target="_blank">%4$s</a> %5$s %6$s %7$s',
                        __('Activation Error:', 'give-square'),
                        __('You must have the', 'give-square'),
                        esc_url_raw('https://givewp.com'),
                        __('Give', 'give-square'),
                        __('core version', 'give-square'),
                        GIVE_SQUARE_MIN_GIVE_VER,
                        __('for the Give - Square add-on to activate.', 'give-square')
                    )
                );

$is_working = false;
            }

return $is_working;
        }

/**
         * Allow this class and other classes to add notices.
         *
         * @since 1.0.0
         *
         * @param string $slug Admin Notice Slug.
         * @param string $class Admin Notice Type.
         * @param string $message Admin Notice Message.
         */
        public function add_admin_notice($slug, $class, $message)
        {
            $this->notices[$slug] = [
                'class' => $class,
                'message' => $message,
            ];
        }

/**
         * Display admin notices.
         *
         * @since 1.0.0
         */
        public function admin_notices()
        {
            $allowed_tags = [
                'a' => [
                    'href' => [],
                    'title' => [],
                    'class' => [],
                    'id' => [],
                ],
                'br' => [],
                'em' => [],
                'span' => [
                    'class' => [],
                ],
                'strong' => [],
            ];

foreach ((array)$this->notices as $notice_key => $notice) {
                echo "<div class='" . esc_attr($notice['class']) . "'><p>";
                echo wp_kses($notice['message'], $allowed_tags);
                echo '</p></div>';
            }
        }

/**
         * Show activation banner for this add-on.
         *
         * @since 1.0.0
         *
         * @return bool
         */
        public function activation_banner()
        {
            // Check for activation banner inclusion.
            if (
                !class_exists('Give_Addon_Activation_Banner')
                && file_exists(GIVE_PLUGIN_DIR . 'includes/admin/class-addon-activation-banner.php')
            ) {
                include GIVE_PLUGIN_DIR . 'includes/admin/class-addon-activation-banner.php';
            }

// Initialize activation welcome banner.
            if (class_exists('Give_Addon_Activation_Banner')) {
                // Only runs on admin.
                $args = [
                    'file' => GIVE_SQUARE_PLUGIN_FILE,
                    'name' => __('Square Gateway', 'give-square'),
                    'version' => GIVE_SQUARE_VERSION,
                    'settings_url' => admin_url(
                        'edit.php?post_type=give_forms&page=give-settings&tab=gateways&section=square-settings'
                    ),
                    'documentation_url' => 'http://docs.givewp.com/addon-square',
                    'support_url' => 'https://givewp.com/support/',
                    'testing' => false,
                ];
                new Give_Addon_Activation_Banner($args);
            }

return true;
        }

}

endif; // End if class_exists check.

require __DIR__ . '/vendor/autoload.php';

if (!function_exists('give_square')) {
    /**
     * Returns class object instance.
     *
     * @since 1.0.0
     *
     * @return Give_Square bool|object
     */
    function give_square()
    {
        return Give_Square::get_instance();
    }

give_square();
}

/**
 * Load the Service Providers with Give core. This *must* remain outside of the Give_Square class
 * as it is a completely different bootstrapping system and cannot run inside of the plugins_loaded hook.
 * Ultimately, we will deprecate the legacy loading methods in Give_Recurring in favor of Service Providers.
 *
 * @since 1.2.0
 */
add_action('before_give_init', function () {
    if (!give_square()->check_environment()) {
        return;
    }

$service_providers = [
        \GiveSquare\Addon\ServiceProvider::class,
        \GiveSquare\PaymentGateway\ServiceProvider::class,
        \GiveSquare\GatewayConnect\ServiceProvider::class
    ];

foreach ($service_providers as $service_provider) {
        give()->registerServiceProvider($service_provider);
    }
});

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