Emarket | Multipurpose WooCommerce Theme v8.2.3

<?php
/**
 * Theme activation
 */

function sw_verify_envato_purchase_code($code) {
    
    $url = esc_url( 'https://wpthemego.com/api/?purchasecode=' . $code );
    $request_headers = array(
        'method' => 'GET',
        'user-agent' => 'Magentech WordPress',
        'timeout'    => 20,
        'sslverify'    => false
    );
    $response = wp_remote_request( $url, $request_headers );   
    $body = wp_remote_retrieve_body( $response );   
    return intval( $body );
}

function sw_verify_purchase_code_result( $input ){
    $result = sw_verify_envato_purchase_code( $input );
    if(  $result == 20492674 ){
        return true;
    }else{
        return false;
    }
}

 
if (is_admin() && isset($_GET['activated']) && 'themes.php' == $GLOBALS['pagenow']) {
    wp_redirect(admin_url('themes.php?page=sw_activation_options'));
    exit;
}

add_action('admin_menu', 'sw_activation_options_add_page', 50);

function sw_activation_options_add_page() {
    $sw_activation_options = get_option( 'sw_purchase_code' );   
    global $wp_rewrite;
    if ( $sw_activation_options == '' ) {
        $theme_page = add_theme_page(
                esc_html__('Theme Activation', 'emarket'),
                esc_html__('Theme Activation', 'emarket'),
                'edit_theme_options',
                'sw_activation_options',
                'sw_activation_options_render_page'
        );       
    } else {
        if (is_admin() && isset($_GET['page']) && $_GET['page'] === 'sw_activation_options' ) {
            $wp_rewrite->flush_rules();           
            if( get_option( 'sw_plugins' ) ){
                wp_redirect( esc_url( admin_url('themes.php?page=tgmpa-install-plugins') ) );
            }else{
                wp_redirect( esc_url( admin_url() ) );
            }
            exit;
        }
    }
    add_action('admin_init', 'sw_activation_options_init');
}

function sw_activation_options_init() {
    register_setting( 'section', 'sw_purchase_code', 'sw_validate_purchase_code' );
}

function sw_get_default_activation_options() {
    $default_activation_options = '';

    return apply_filters('sw_default_activation_options', $default_activation_options);
}

function sw_activation_options_render_page() {
    wp_enqueue_style('admin-style', get_template_directory_uri() . '/lib/admin/css/admin.css', array(), null);
?>
<div class="sw-activation-form">
    <div class="activation-form-inner">
        <h2>
            <?php printf( esc_html__( '%s Theme Activation', 'emarket' ), wp_get_theme() ); ?>
            <a href="<?php echo esc_url( 'http://wpthemego.com/document/how-to-get-purchase-code-for-items-from-envato/' ); ?>" target="_blank" class="sw-activation-help" title="<?php echo esc_attr__( 'Need help? Please follow this url', 'emarket' ); ?>"><?php echo esc_html__( 'Help', 'emarket' ); ?></a>
        </h2>
        <?php settings_errors(); ?>
        

        <form method="post" action="options.php">

            <?php
                settings_fields('section');
                do_settings_sections( 'section' );
            ?>           
            <div class="sw-activation">
                <ul>
                    <li>
                        <label for="sw_purchase_code" class="clearfix">
                            <input type="text" id="sw_purchase_code" placeholder="<?php echo esc_attr__( 'Enter Your Purchase Code', 'emarket' ); ?>" name="sw_purchase_code" value="<?php echo esc_attr( get_option( 'sw_purchase_code' ) ); ?>"/>
                        </label>
                    </li>
                </ul>
            </div>
            
            <?php submit_button(); ?>
        </form>
    </div>
</div>

<?php }

function sw_validate_purchase_code( $input ){
    $new_input = '';
    if( sw_verify_purchase_code_result( $input ) ) {
        $new_input = $input;
    }
    return  true;
}

    require_once ( get_template_directory().'/lib/plugin-requirement.php' );            // Custom functions
    if( class_exists( 'OCDI_Plugin' ) ) :
        require_once ( get_template_directory().'/lib/import/sw-import.php' );
    endif;