woothemes/woocommerce

<?php
/**
 * Manages WooCommerce plugin updating on the Plugins screen.
 *
 * @package     WooCommerce\Admin
 * @version     3.2.0
 */

use Automattic\Jetpack\Constants;

if ( ! defined( 'ABSPATH' ) ) {
    exit;
}

if ( ! class_exists( 'WC_Plugin_Updates' ) ) {
    include_once dirname( __FILE__ ) . '/class-wc-plugin-updates.php';
}

/**
 * Class WC_Plugins_Screen_Updates
 */
class WC_Plugins_Screen_Updates extends WC_Plugin_Updates {

    /**
     * The upgrade notice shown inline.
     *
     * @var string
     */
    protected $upgrade_notice = '';

    /**
     * Constructor.
     */
    public function __construct() {
        add_action( 'in_plugin_update_message-woocommerce/woocommerce.php', array( $this, 'in_plugin_update_message' ), 10, 2 );
    }

    /**
     * Show plugin changes on the plugins screen. Code adapted from W3 Total Cache.
     *
     * @param array    $args Unused parameter.
     * @param stdClass $response Plugin update response.
     */
    public function in_plugin_update_message( $args, $response ) {
        $version_type = Constants::get_constant( 'WC_SSR_PLUGIN_UPDATE_RELEASE_VERSION_TYPE' );
        if ( ! is_string( $version_type ) ) {
            $version_type = 'none';
        }

        $this->new_version            = $response->new_version;
        $this->upgrade_notice         = $this->get_upgrade_notice( $response->new_version );
        $this->major_untested_plugins = $this->get_untested_plugins( $response->new_version, $version_type );

        $current_version_parts = explode( '.', Constants::get_constant( 'WC_VERSION' ) );
        $new_version_parts     = explode( '.', $this->new_version );

        // If user has already moved to the minor version, we don't need to flag up anything.
        if ( version_compare( $current_version_parts[0] . '.' . $current_version_parts[1], $new_version_parts[0] . '.' . $new_version_parts[1], '=' ) ) {
            return;
        }

        if ( ! empty( $this->major_untested_plugins ) ) {
            $this->upgrade_notice .= $this->get_extensions_inline_warning_major();
        }

        if ( ! empty( $this->major_untested_plugins ) ) {
            $this->upgrade_notice .= $this->get_extensions_modal_warning();
            add_action( 'admin_print_footer_scripts', array( $this, 'plugin_screen_modal_js' ) );
        }

        echo apply_filters( 'woocommerce_in_plugin_update_message', $this->upgrade_notice ? '</p>' . wp_kses_post( $this->upgrade_notice ) . '<p class="dummy">' : '' ); // phpcs:ignore WordPress.XSS.EscapeOutput.OutputNotEscaped
    }

    /**
     * Get the upgrade notice from WordPress.org.
     *
     * @param  string $version WooCommerce new version.
     * @return string
     */
    protected function get_upgrade_notice( $version ) {
        $transient_name = 'wc_upgrade_notice_' . $version;
        $upgrade_notice = get_transient( $transient_name );

        if ( false === $upgrade_notice ) {
            $response = wp_safe_remote_get( 'https://plugins.svn.wordpress.org/woocommerce/trunk/readme.txt' );

            if ( ! is_wp_error( $response ) && ! empty( $response['body'] ) ) {
                $upgrade_notice = $this->parse_update_notice( $response['body'], $version );
                set_transient( $transient_name, $upgrade_notice, DAY_IN_SECONDS );
            }
        }
        return $upgrade_notice;
    }

    /**
     * Parse update notice from readme file.
     *
     * @param  string $content WooCommerce readme file content.
     * @param  string $new_version WooCommerce new version.
     * @return string
     */
    private function parse_update_notice( $content, $new_version ) {
        $version_parts     = explode( '.', $new_version );
        $check_for_notices = array(
            $version_parts[0] . '.0', // Major.
            $version_parts[0] . '.0.0', // Major.
            $version_parts[0] . '.' . $version_parts[1], // Minor.
            $version_parts[0] . '.' . $version_parts[1] . '.' . $version_parts[2], // Patch.
        );
        $notice_regexp     = '~==\s*Upgrade Notice\s*==\s*=\s*(.*)\s*=(.*)(=\s*' . preg_quote( $new_version ) . '\s*=|$)~Uis';
        $upgrade_notice    = '';

        foreach ( $check_for_notices as $check_version ) {
            if ( version_compare( Constants::get_constant( 'WC_VERSION' ), $check_version, '>' ) ) {
                continue;
            }

            $matches = null;
            if ( preg_match( $notice_regexp, $content, $matches ) ) {
                $notices = (array) preg_split( '~[\r\n]+~', trim( $matches[2] ) );

                if ( version_compare( trim( $matches[1] ), $check_version, '=' ) ) {
                    $upgrade_notice .= '<p class="wc_plugin_upgrade_notice">';

                    foreach ( $notices as $index => $line ) {
                        $upgrade_notice .= preg_replace( '~\[([^\]]*)\]\(([^\)]*)\)~', '<a href="${2}">${1}</a>', $line );
                    }

                    $upgrade_notice .= '</p>';
                }
                break;
            }
        }
        return wp_kses_post( $upgrade_notice );
    }

    /**
     * JS for the modal window on the plugins screen.
     */
    public function plugin_screen_modal_js() {
        ?>
        <script>
            ( function( $ ) {
                var $update_box = $( '#woocommerce-update' );
                var $update_link = $update_box.find('a.update-link').first();
                var update_url = $update_link.attr( 'href' );

                // Set up thickbox.
                $update_link.removeClass( 'update-link' );
                $update_link.addClass( 'wc-thickbox' );
                $update_link.attr( 'href', '#TB_inline?height=600&width=550&inlineId=wc_untested_extensions_modal' );

                // Trigger the update if the user accepts the modal's warning.
                $( '#wc_untested_extensions_modal .accept' ).on( 'click', function( evt ) {
                    evt.preventDefault();
                    tb_remove();
                    $update_link.removeClass( 'wc-thickbox open-plugin-details-modal' );
                    $update_link.addClass( 'update-link' );
                    $update_link.attr( 'href', update_url );
                    $update_link.click();
                });

                $( '#wc_untested_extensions_modal .cancel' ).on( 'click', function( evt ) {
                    evt.preventDefault();
                    tb_remove();
                });
            })( jQuery );
        </script>
        <?php
        $this->generic_modal_js();
    }
}
new WC_Plugins_Screen_Updates();