wp/wp-content/plugins/portfolio/bws_menu/class-bws-settings.php
changeset 19 3d72ae0968f4
parent 16 a86126ab1dd4
child 21 48c4eec2b7e6
--- a/wp/wp-content/plugins/portfolio/bws_menu/class-bws-settings.php	Wed Sep 21 18:19:35 2022 +0200
+++ b/wp/wp-content/plugins/portfolio/bws_menu/class-bws-settings.php	Tue Sep 27 16:37:53 2022 +0200
@@ -1,6 +1,7 @@
 <?php
 /**
  * Displays the content on the plugin settings page
+ *
  * @package BestWebSoft
  * @since 1.9.8
  */
@@ -9,8 +10,8 @@
 	class Bws_Settings_Tabs {
 		private $tabs;
 		private $pro_plugin_is_activated = false;
-		private $custom_code_args = array();
-		private $bws_plugin_link = '';
+		private $custom_code_args        = array();
+		private $bws_plugin_link         = '';
 
 		public $plugin_basename;
 		public $prefix;
@@ -33,7 +34,7 @@
 		public $trial_days;
 		public $bws_hide_pro_option_exist = true;
 
-		public $forbid_view = false;
+		public $forbid_view            = false;
 		public $change_permission_attr = '';
 
 		public $version;
@@ -49,6 +50,7 @@
 		 *
 		 * The child class should call this constructor from its own constructor to override
 		 * the default $args.
+		 *
 		 * @access public
 		 *
 		 * @param array|string $args
@@ -56,85 +58,90 @@
 		public function __construct( $args = array() ) {
 			global $wp_version;
 
-			$args = wp_parse_args( $args, array(
-				'plugin_basename' 	 => '',
-				'prefix' 			 => '',
-				'plugins_info'		 => array(),
-				'default_options' 	 => array(),
-				'options' 			 => array(),
-				'is_network_options' => false,
-				'tabs' 				 => array(),
-				'doc_link'			 => '',
-				'doc_video_link'	 => '',
-				'wp_slug'			 => '',
-				'demo_data' 		 => false,
-				/* if this is free version and pro exist */
-				'link_key'			 => '',
-				'link_pn'			 => '',
-				'trial_days'		 => false,
-				'licenses'			 => array()
-			) );
+			$args = wp_parse_args(
+				$args,
+				array(
+					'plugin_basename'    => '',
+					'prefix'             => '',
+					'plugins_info'       => array(),
+					'default_options'    => array(),
+					'options'            => array(),
+					'is_network_options' => false,
+					'tabs'               => array(),
+					'doc_link'           => '',
+					'doc_video_link'     => '',
+					'wp_slug'            => '',
+					'demo_data'          => false,
+					/* if this is free version and pro exist */
+					'link_key'           => '',
+					'link_pn'            => '',
+					'trial_days'         => false,
+					'licenses'           => array(),
+				)
+			);
 
 			$args['plugins_info']['Name'] = str_replace( ' by BestWebSoft', '', $args['plugins_info']['Name'] );
 
-			$this->plugin_basename		= $args['plugin_basename'];
-			$this->prefix				= $args['prefix'];
-			$this->plugins_info			= $args['plugins_info'];
-			$this->options				= $args['options'];
-			$this->default_options  	= $args['default_options'];
-			$this->wp_slug  			= $args['wp_slug'];
-			$this->demo_data  			= $args['demo_data'];
+			$this->plugin_basename = $args['plugin_basename'];
+			$this->prefix          = $args['prefix'];
+			$this->plugins_info    = $args['plugins_info'];
+			$this->options         = $args['options'];
+			$this->default_options = $args['default_options'];
+			$this->wp_slug         = $args['wp_slug'];
+			$this->demo_data       = $args['demo_data'];
 
-			$this->tabs  				= $args['tabs'];
-			$this->is_network_options  	= $args['is_network_options'];
+			$this->tabs               = $args['tabs'];
+			$this->is_network_options = $args['is_network_options'];
 
-			$this->doc_link  			= $args['doc_link'];
-			$this->doc_video_link  		= $args['doc_video_link'];
+			$this->doc_link       = $args['doc_link'];
+			$this->doc_video_link = $args['doc_video_link'];
 
-			$this->link_key  			= $args['link_key'];
-			$this->link_pn  			= $args['link_pn'];
-			$this->trial_days  			= $args['trial_days'];
-			$this->licenses 			= $args['licenses'];
+			$this->link_key   = $args['link_key'];
+			$this->link_pn    = $args['link_pn'];
+			$this->trial_days = $args['trial_days'];
+			$this->licenses   = $args['licenses'];
 
 			$this->pro_page = $this->bws_license_plugin = '';
 			/* get $bws_plugins */
-			require( dirname( __FILE__ ) . '/product_list.php' );
+			require dirname( __FILE__ ) . '/product_list.php';
 			if ( isset( $bws_plugins[ $this->plugin_basename ] ) ) {
 				if ( isset( $bws_plugins[ $this->plugin_basename ]['pro_settings'] ) ) {
-					$this->pro_page  			= $bws_plugins[ $this->plugin_basename ]['pro_settings'];
-					$this->bws_license_plugin  	= $bws_plugins[ $this->plugin_basename ]['pro_version'];
-				}						
+					$this->pro_page           = $bws_plugins[ $this->plugin_basename ]['pro_settings'];
+					$this->bws_license_plugin = $bws_plugins[ $this->plugin_basename ]['pro_version'];
+				}
 
-				$this->bws_plugin_link = substr( $bws_plugins[ $this->plugin_basename ]['link'],0 , strpos( $bws_plugins[ $this->plugin_basename ]['link'], '?' ) ); 
+				$this->bws_plugin_link = substr( $bws_plugins[ $this->plugin_basename ]['link'], 0, strpos( $bws_plugins[ $this->plugin_basename ]['link'], '?' ) );
 
-				if ( ! empty( $this->link_key ) && ! empty( $this->link_pn ) )
-					$this->bws_plugin_link .= '?k=' . $this->link_key . '&pn=' . $this->link_pn . '&v=' . $this->plugins_info["Version"] . '&wp_v=' . $wp_version;
+				if ( ! empty( $this->link_key ) && ! empty( $this->link_pn ) ) {
+					$this->bws_plugin_link .= '?k=' . $this->link_key . '&pn=' . $this->link_pn . '&v=' . $this->plugins_info['Version'] . '&wp_v=' . $wp_version;
+				}
 			}
 
 			$this->hide_pro_tabs = bws_hide_premium_options_check( $this->options );
-			$this->version = '1.0.0';
-			$this->is_multisite = is_multisite();
+			$this->version       = '1.0.0';
+			$this->is_multisite  = is_multisite();
 
 			if ( empty( $this->pro_page ) && array_key_exists( 'license', $this->tabs ) ) {
-				$this->is_pro = true;
+				$this->is_pro                                        = true;
 				$this->licenses[ $this->plugins_info['TextDomain'] ] = array(
 					'name'     => $this->plugins_info['Name'],
 					'slug'     => $this->plugins_info['TextDomain'],
-					'basename' => $this->plugin_basename
+					'basename' => $this->plugin_basename,
 				);
 			} else {
 				$this->licenses[ $this->plugins_info['TextDomain'] ] = array(
-					'name'          => $this->plugins_info['Name'],
-					'slug'          => $this->plugins_info['TextDomain'],
-					'pro_slug'      => substr( $this->bws_license_plugin, 0, stripos( $this->bws_license_plugin, '/' ) ),
-					'basename'      => $this->plugin_basename,
-					'pro_basename'  => $this->bws_license_plugin
+					'name'         => $this->plugins_info['Name'],
+					'slug'         => $this->plugins_info['TextDomain'],
+					'pro_slug'     => substr( $this->bws_license_plugin, 0, stripos( $this->bws_license_plugin, '/' ) ),
+					'basename'     => $this->plugin_basename,
+					'pro_basename' => $this->bws_license_plugin,
 				);
 			}
 		}
 
 		/**
 		 * Displays the content of the "Settings" on the plugin settings page
+		 *
 		 * @access public
 		 * @param  void
 		 * @return void
@@ -155,34 +162,41 @@
 				$this->demo_data->bws_demo_confirm();
 			} else {
 				bws_show_settings_notice(); ?>
-                <form class="bws_form" method="post" action="" enctype="multipart/form-data">
-                    <div id="poststuff">
-                        <div id="post-body" class="metabox-holder columns-2">
-                            <div id="post-body-content" style="position: relative;">
+				<form class="bws_form" method="post" action="" enctype="multipart/form-data">
+					<div id="poststuff">
+						<div id="post-body" class="metabox-holder columns-2">
+							<div id="post-body-content" style="position: relative;">
 								<?php $this->display_tabs(); ?>
-                            </div><!-- #post-body-content -->
-                            <div id="postbox-container-1" class="postbox-container">
-                                <div class="meta-box-sortables ui-sortable">
-                                    <div id="submitdiv" class="postbox">
-                                        <h3 class="hndle"><?php _e( 'Information', 'bestwebsoft' ); ?></h3>
-                                        <div class="inside">
-                                            <div class="submitbox" id="submitpost">
-                                                <div id="minor-publishing">
-                                                    <div id="misc-publishing-actions">
-														<?php if ( $this->is_pro ) {
+							</div><!-- #post-body-content -->
+							<div id="postbox-container-1" class="postbox-container">
+								<div class="meta-box-sortables ui-sortable">
+									<div id="submitdiv" class="postbox">
+										<h3 class="hndle"><?php esc_html_e( 'Information', 'bestwebsoft' ); ?></h3>
+										<div class="inside">
+											<div class="submitbox" id="submitpost">
+												<div id="minor-publishing">
+													<div id="misc-publishing-actions">
+														<?php
+														/**
+														 * Action - Display additional content for #misc-publishing-Actions
+														 */
+														do_action( __CLASS__ . '_information_postbox_top' );
+														?>
+														<?php
+														if ( $this->is_pro ) {
 															if ( isset( $bstwbsftwppdtplgns_options['wrong_license_key'][ $this->plugin_basename ] ) || empty( $bstwbsftwppdtplgns_options['time_out'] ) || ! array_key_exists( $this->plugin_basename, $bstwbsftwppdtplgns_options['time_out'] ) ) {
-																$license_type = 'Pro';
+																$license_type   = 'Pro';
 																$license_status = __( 'Inactive', 'bestwebsoft' ) . ' <a href="#' . $this->prefix . '_license_tab" class="bws_trigger_tab_click">' . __( 'Learn More', 'bestwebsoft' ) . '</a>';
 															} else {
 																$finish = strtotime( $bstwbsftwppdtplgns_options['time_out'][ $this->plugin_basename ] );
-																$today = strtotime( date( "m/d/Y" ) );
+																$today  = strtotime( gmdate( 'm/d/Y' ) );
 																if ( isset( $bstwbsftwppdtplgns_options['trial'][ $this->plugin_basename ] ) ) {
 																	$license_type = 'Trial Pro';
 
 																	if ( $finish < $today ) {
 																		$license_status = __( 'Expired', 'bestwebsoft' );
 																	} else {
-																		$daysleft = floor( ( $finish - $today ) / ( 60*60*24 ) );
+																		$daysleft       = floor( ( $finish - $today ) / ( 60 * 60 * 24 ) );
 																		$license_status = sprintf( __( '%s day(-s) left', 'bestwebsoft' ), $daysleft );
 																	}
 																	$license_status .= '. <a target="_blank" href="' . esc_url( $this->plugins_info['PluginURI'] ) . '">' . __( 'Upgrade to Pro', 'bestwebsoft' ) . '</a>';
@@ -194,118 +208,157 @@
 																		$license_status = __( 'Active', 'bestwebsoft' );
 																	}
 																}
-															} ?>
-                                                            <div class="misc-pub-section">
-                                                                <strong><?php _e( 'License', 'bestwebsoft' ); ?>:</strong> <?php echo $license_type; ?>
-                                                            </div>
-                                                            <div class="misc-pub-section">
-                                                                <strong><?php _e( 'Status', 'bestwebsoft' ); ?>:</strong> <?php echo $license_status; ?>
-                                                            </div><!-- .misc-pub-section -->
+															}
+															?>
+															<div class="misc-pub-section">
+																<strong><?php esc_html_e( 'License', 'bestwebsoft' ); ?>:</strong> <?php echo esc_attr( $license_type ); ?>
+															</div>
+															<div class="misc-pub-section">
+																<strong><?php esc_html_e( 'Status', 'bestwebsoft' ); ?>:</strong> <?php echo wp_kses_post( $license_status ); ?>
+															</div><!-- .misc-pub-section -->
 														<?php } ?>
-                                                        <div class="misc-pub-section">
-                                                            <strong><?php _e( 'Version', 'bestwebsoft' ); ?>:</strong> <?php echo $this->plugins_info['Version']; ?>
-                                                        </div><!-- .misc-pub-section -->
-                                                    </div>
-                                                    <div class="clear"></div>
-                                                </div>
-                                                <div id="major-publishing-actions">
-                                                    <div id="publishing-action">
-                                                        <input type="hidden" name="<?php echo $this->prefix; ?>_form_submit" value="submit" />
-                                                        <input id="bws-submit-button" type="submit" class="button button-primary button-large" value="<?php _e( 'Save Changes', 'bestwebsoft' ); ?>" />
+														<div class="misc-pub-section">
+															<strong><?php esc_html_e( 'Version', 'bestwebsoft' ); ?>:</strong> <?php echo esc_attr( $this->plugins_info['Version'] ); ?>
+														</div><!-- .misc-pub-section -->
+														<?php
+														/**
+														 * Action - Display additional content for #misc-publishing-Actions
+														 */
+														do_action( __CLASS__ . '_information_postbox_bottom' );
+														?>
+													</div>
+													<div class="clear"></div>
+												</div>
+												<div id="major-publishing-Actions">
+													<div id="publishing-Action">
+														<input type="hidden" name="<?php echo esc_attr( $this->prefix ); ?>_form_submit" value="submit" />
+														<input id="bws-submit-button" type="submit" class="button button-primary button-large" value="<?php esc_html_e( 'Save Changes', 'bestwebsoft' ); ?>" />
 														<?php wp_nonce_field( $this->plugin_basename, 'bws_nonce_name' ); ?>
-                                                    </div>
-                                                    <div class="clear"></div>
-                                                </div>
-                                            </div>
-                                        </div>
-                                    </div>
-									<?php /**
-									 * action - Display custom metabox
+													</div>
+													<div class="clear"></div>
+												</div>
+											</div>
+										</div>
+									</div>
+									<?php
+									/**
+									 * Action - Display custom metabox
 									 */
-									do_action( __CLASS__ . '_display_metabox' ); ?>
-                                </div>
-                            </div>
-                            <div id="postbox-container-2" class="postbox-container">
-								<?php /**
-								 * action - Display additional content for #postbox-container-2
+									do_action( __CLASS__ . '_display_metabox' );
+
+									if ( function_exists( 'bws_affiliate_postbox' ) ) {
+										bws_affiliate_postbox();
+									}
+									?>
+								</div>
+							</div>
+							<div id="postbox-container-2" class="postbox-container">
+								<?php
+								/**
+								 * Action - Display additional content for #postbox-container-2
 								 */
-								do_action( __CLASS__ . '_display_second_postbox' ); ?>
-                                <div class="submit">
-                                    <input type="submit" class="button button-primary button-large" value="<?php _e( 'Save Changes', 'bestwebsoft' ); ?>" />
-                                </div>
-								<?php if ( ! empty( $this->wp_slug ) )
-									bws_plugin_reviews_block( $this->plugins_info['Name'], $this->wp_slug ); ?>
-                            </div>
-                        </div>
-                </form>
-                </div>
-			<?php }
+								do_action( __CLASS__ . '_display_second_postbox' );
+								?>
+								<div class="submit">
+									<input type="submit" class="button button-primary button-large" value="<?php esc_html_e( 'Save Changes', 'bestwebsoft' ); ?>" />
+									<?php wp_nonce_field( $this->plugin_basename, 'bws_nonce_name' ); ?>
+								</div>
+								<?php
+								if ( ! empty( $this->wp_slug ) ) {
+									bws_plugin_reviews_block( $this->plugins_info['Name'], $this->wp_slug );}
+								?>
+							</div>
+						</div>
+					</form>
+				</div>
+				<?php
+			}
 		}
 
 		/**
 		 * Displays the Tabs
+		 *
 		 * @access public
 		 * @param  void
 		 * @return void
 		 */
-		public function display_tabs() { ?>
-            <div id="bws_settings_tabs_wrapper">
-                <ul id="bws_settings_tabs">
+		public function display_tabs() {
+			?>
+			<div id="bws_settings_tabs_wrapper">
+				<ul id="bws_settings_tabs">
 					<?php $this->display_tabs_list(); ?>
-                </ul>
+				</ul>
 				<?php $this->display_tabs_content(); ?>
-                <div class="clear"></div>
-                <input type="hidden" name="bws_active_tab" value="<?php if ( isset( $_REQUEST['bws_active_tab'] ) ) echo esc_attr( $_REQUEST['bws_active_tab'] ); ?>" />
-            </div>
-		<?php }
+				<div class="clear"></div>
+				<input type="hidden" name="bws_active_tab" value="<?php
+					if ( isset( $_REQUEST['bws_active_tab'] ) ) {
+						echo esc_attr( sanitize_text_field( wp_unslash( $_REQUEST['bws_active_tab'] ) ) );
+					}
+				?>" />
+			</div>
+			<?php
+		}
 
 		/**
 		 * Displays the list of tabs
+		 *
 		 * @access private
 		 * @return void
 		 */
 		private function display_tabs_list() {
 			foreach ( $this->tabs as $tab_slug => $data ) {
-				if ( ! empty( $data['is_pro'] ) && $this->hide_pro_tabs )
+				if ( ! empty( $data['is_pro'] ) && $this->hide_pro_tabs ) {
 					continue;
+				}
 				$tab_class = 'bws-tab-' . $tab_slug;
-				if ( ! empty( $data['is_pro'] ) )
+				if ( ! empty( $data['is_pro'] ) ) {
 					$tab_class .= ' bws_pro_tab';
-				if ( ! empty( $data['class'] ) )
-					$tab_class .= ' ' . $data['class']; ?>
-                <li class="<?php echo $tab_class; ?>" data-slug="<?php echo $tab_slug; ?>">
-                    <a href="#<?php echo $this->prefix; ?>_<?php echo $tab_slug; ?>_tab">
-                        <span><?php echo esc_html( $data['label'] ); ?></span>
-                    </a>
-                </li>
-			<?php }
+				}
+				if ( ! empty( $data['class'] ) ) {
+					$tab_class .= ' ' . $data['class'];
+				}
+				?>
+				<li class="<?php echo esc_attr( $tab_class ); ?>" data-slug="<?php echo esc_attr( $tab_slug ); ?>">
+					<a href="#<?php echo esc_attr( $this->prefix ); ?>_<?php echo esc_attr( $tab_slug ); ?>_tab">
+						<span><?php echo esc_html( $data['label'] ); ?></span>
+					</a>
+				</li>
+				<?php
+			}
 		}
 
 		/**
 		 * Displays the content of tabs
+		 *
 		 * @access private
 		 * @param  string $tab_slug
 		 * @return void
 		 */
 		public function display_tabs_content() {
 			foreach ( $this->tabs as $tab_slug => $data ) {
-				if ( ! empty( $data['is_pro'] ) && $this->hide_pro_tabs )
-					continue; ?>
-                <div class="bws_tab ui-tabs-panel ui-widget-content ui-corner-bottom" id="<?php echo esc_attr( $this->prefix . '_' . $tab_slug . '_tab' ); ?>" aria-labelledby="ui-id-2" role="tabpanel" aria-hidden="false" style="display: block;">
-					<?php $tab_slug = str_replace( '-', '_', $tab_slug );
+				if ( ! empty( $data['is_pro'] ) && $this->hide_pro_tabs ) {
+					continue;
+				}
+				?>
+				<div class="bws_tab ui-tabs-panel ui-widget-content ui-corner-bottom" id="<?php echo esc_attr( $this->prefix . '_' . $tab_slug . '_tab' ); ?>" aria-labelledby="ui-id-2" role="tabpanel" aria-hidden="false" style="display: block;">
+					<?php
+					$tab_slug = str_replace( '-', '_', $tab_slug );
 					if ( method_exists( $this, 'tab_' . $tab_slug ) ) {
 						call_user_func( array( $this, 'tab_' . $tab_slug ) );
 						do_action_ref_array( __CLASS__ . '_after_tab_' . $tab_slug, array( &$this ) );
-					} ?>
-                </div>
-			<?php }
+					}
+					?>
+				</div>
+				<?php
+			}
 		}
 
 		/**
 		 * Save all options from all tabs and display errors\messages
+		 *
 		 * @access public
 		 * @param  void
-		 * @return void
+		 * @return array
 		 */
 		public function save_all_tabs_options() {
 			$message = $notice = $error = '';
@@ -316,14 +369,18 @@
 				/* Go Pro - check license key */
 			} elseif ( isset( $_POST['bws_license_submit'] ) && check_admin_referer( $this->plugin_basename, 'bws_nonce_name' ) ) {
 				$result = $this->save_options_license_key();
-				if ( ! empty( $result['empty_field_error'] ) )
+				if ( ! empty( $result['empty_field_error'] ) ) {
 					$error = $result['empty_field_error'];
-				if ( ! empty( $result['error'] ) )
+				}
+				if ( ! empty( $result['error'] ) ) {
 					$error = $result['error'];
-				if ( ! empty( $result['message'] ) )
+				}
+				if ( ! empty( $result['message'] ) ) {
 					$message = $result['message'];
-				if ( ! empty( $result['notice'] ) )
+				}
+				if ( ! empty( $result['notice'] ) ) {
 					$notice = $result['notice'];
+				}
 				/* check demo data */
 			} else {
 				$demo_result = ! empty( $this->demo_data ) ? $this->demo_data->bws_handle_demo_data() : false;
@@ -331,30 +388,30 @@
 					if ( ! empty( $demo_result ) && is_array( $demo_result ) ) {
 						$error   = $demo_result['error'];
 						$message = $demo_result['done'];
-						if ( ! empty( $demo_result['done'] ) && ! empty( $demo_result['options'] ) )
+						if ( ! empty( $demo_result['done'] ) && ! empty( $demo_result['options'] ) ) {
 							$this->options = $demo_result['options'];
+						}
 					}
 					/* Save options */
-				} elseif ( ! isset( $_REQUEST['bws_restore_default'] ) && ! isset( $_POST['bws_handle_demo'] ) && isset( $_REQUEST[ $this->prefix . '_form_submit'] ) && check_admin_referer( $this->plugin_basename, 'bws_nonce_name' ) ) {
+				} elseif ( ! isset( $_REQUEST['bws_restore_default'] ) && ! isset( $_POST['bws_handle_demo'] ) && isset( $_REQUEST[ $this->prefix . '_form_submit' ] ) && check_admin_referer( $this->plugin_basename, 'bws_nonce_name' ) ) {
 					/* save tabs */
 					$result = $this->save_options();
-					if ( ! empty( $result['error'] ) )
+					if ( ! empty( $result['error'] ) ) {
 						$error = $result['error'];
-					if ( ! empty( $result['message'] ) )
+					}
+					if ( ! empty( $result['message'] ) ) {
 						$message = $result['message'];
-					if ( ! empty( $result['notice'] ) )
+					}
+					if ( ! empty( $result['notice'] ) ) {
 						$notice = $result['notice'];
+					}
 
-					if ( '' == $this->change_permission_attr ) {
+					if ( '' === $this->change_permission_attr ) {
 						/* save `misc` tab */
 						$result = $this->save_options_misc();
-						if ( ! empty( $result['notice'] ) )
+						if ( ! empty( $result['notice'] ) ) {
 							$notice .= $result['notice'];
-					}
-
-					if ( array_key_exists( 'custom_code', $this->tabs ) ) {
-						/* save `custom code` tab */
-						$this->save_options_custom_code();
+						}
 					}
 				}
 			}
@@ -364,25 +421,44 @@
 
 		/**
 		 * Display error\message\notice
+		 *
 		 * @access public
 		 * @param  $save_results - array with error\message\notice
 		 * @return void
 		 */
 		public function display_messages( $save_results ) {
 			/**
-			 * action - Display custom error\message\notice
+			 * Action - Display custom error\message\notice
 			 */
-			do_action( __CLASS__ . '_display_custom_messages', $save_results ); ?>
-            <div class="updated fade inline" <?php if ( empty( $save_results['message'] ) ) echo "style=\"display:none\""; ?>><p><strong><?php echo $save_results['message']; ?></strong></p></div>
-            <div class="updated bws-notice inline" <?php if ( empty( $save_results['notice'] ) ) echo "style=\"display:none\""; ?>><p><strong><?php echo $save_results['notice']; ?></strong></p></div>
-            <div class="error inline" <?php if ( empty( $save_results['error'] ) ) echo "style=\"display:none\""; ?>><p><strong><?php echo $save_results['error']; ?></strong></p></div>
-		<?php }
+			do_action( __CLASS__ . '_display_custom_messages', $save_results );
+			?>
+			<div class="updated fade inline" 
+			<?php
+			if ( empty( $save_results['message'] ) ) {
+				echo 'style="display:none"';}
+			?>
+			><p><strong><?php echo esc_html( $save_results['message'] ); ?></strong></p></div>
+			<div class="updated bws-notice inline" 
+			<?php
+			if ( empty( $save_results['notice'] ) ) {
+				echo 'style="display:none"';}
+			?>
+			><p><strong><?php echo esc_html( $save_results['notice'] ); ?></strong></p></div>
+			<div class="error inline" 
+			<?php
+			if ( empty( $save_results['error'] ) ) {
+				echo 'style="display:none"';}
+			?>
+			><p><strong><?php echo esc_html( $save_results['error'] ); ?></strong></p></div>
+			<?php
+		}
 
 		/**
 		 * Save plugin options to the database
+		 *
 		 * @access public
 		 * @param  ab
-		 * @return array    The action results
+		 * @return array    The Action results
 		 * @abstract
 		 */
 		public function save_options() {
@@ -391,255 +467,272 @@
 
 		/**
 		 * Get 'custom_code' status and content
+		 *
 		 * @access private
 		 */
 		private function get_custom_code() {
-			global $bstwbsftwppdtplgns_options;
+			global $bstwbsftwppdtplgns_options, $wp_filesystem;
 
 			$this->custom_code_args = array(
 				'is_css_active' => false,
-				'content_css'  	=> '',
-				'css_writeable'	=> false,
+				'content_css'   => '',
+				'css_writeable' => false,
 				'is_php_active' => false,
-				'content_php' 	=> '',
-				'php_writeable'	=> false,
-				'is_js_active' 	=> false,
-				'content_js' 	=> '',
-				'js_writeable'	=> false,
+				'content_php'   => '',
+				'php_writeable' => false,
+				'is_js_active'  => false,
+				'content_js'    => '',
+				'js_writeable'  => false,
 			);
 
-			if ( ! $this->upload_dir )
+			if ( ! $this->upload_dir ) {
 				$this->upload_dir = wp_upload_dir();
+			}
 
 			$folder = $this->upload_dir['basedir'] . '/bws-custom-code';
-			if ( ! $this->upload_dir["error"] ) {
-				if ( ! is_dir( $folder ) )
-					wp_mkdir_p( $folder, 0755 );
 
-				$index_file = $this->upload_dir['basedir'] . '/bws-custom-code/index.php';
-				if ( ! file_exists( $index_file ) ) {
-					if ( $f = fopen( $index_file, 'w+' ) )
-						fclose( $f );
-				}
+			if ( $this->is_multisite ) {
+				$this->custom_code_args['blog_id'] = get_current_blog_id();
 			}
 
-			if ( $this->is_multisite )
-				$this->custom_code_args['blog_id'] = get_current_blog_id();
+			WP_Filesystem();
 
 			foreach ( array( 'css', 'php', 'js' ) as $extension ) {
-				$file = 'bws-custom-code.' . $extension;
+				$file      = 'bws-custom-code.' . $extension;
 				$real_file = $folder . '/' . $file;
-
-				if ( file_exists( $real_file ) ) {
+				
+				if ( $wp_filesystem->exists( $real_file ) ) {
 					update_recently_edited( $real_file );
-					$this->custom_code_args["content_{$extension}"] = file_get_contents( $real_file );
+					$this->custom_code_args[ "content_{$extension}" ] = $wp_filesystem->get_contents( $real_file );//file_get_contents( $real_file );
 					if ( ( $this->is_multisite && isset( $bstwbsftwppdtplgns_options['custom_code'][ $this->custom_code_args['blog_id'] ][ $file ] ) ) ||
-					     ( ! $this->is_multisite && isset( $bstwbsftwppdtplgns_options['custom_code'][ $file ] ) ) ) {
-						$this->custom_code_args["is_{$extension}_active"] = true;
+						 ( ! $this->is_multisite && isset( $bstwbsftwppdtplgns_options['custom_code'][ $file ] ) ) ) {
+						$this->custom_code_args[ "is_{$extension}_active" ] = true;
+					}
+					if ( is_writeable( $real_file ) ) {
+						$this->custom_code_args[ "{$extension}_writeable" ] = true;
 					}
-					if ( is_writeable( $real_file ) )
-						$this->custom_code_args["{$extension}_writeable"] = true;
 				} else {
-					$this->custom_code_args["{$extension}_writeable"] = true;
-					if ( 'php' == $extension )
-						$this->custom_code_args["content_{$extension}"] = "<?php" . "\n" . "if ( ! defined( 'ABSPATH' ) ) exit;" . "\n" . "if ( ! defined( 'BWS_GLOBAL' ) ) exit;" . "\n\n" . "/* Start your code here */" . "\n";
+					$this->custom_code_args[ "{$extension}_writeable" ] = true;
+					if ( 'php' === $extension ) {
+						$this->custom_code_args[ "content_{$extension}" ] = '<?php' . "\n" . "if ( ! defined( 'ABSPATH' ) ) exit;" . "\n" . "if ( ! defined( 'BWS_GLOBAL' ) ) exit;" . "\n\n" . '/* Start your code here */' . "\n";
+					}
 				}
 			}
 		}
 
 		/**
 		 * Display 'custom_code' tab
+		 *
+		 * @access private
+		 */
+		private function tab_custom_code() {
+			global $bstwbsftwppdtplgns_options, $wp_version;
+			?>
+			<h3 class="bws_tab_label"><?php esc_html_e( 'Custom Code', 'bestwebsoft' ); ?></h3>
+			<?php
+			$this->help_phrase();
+			$bws_hide_premium = bws_hide_premium_options_check( $bstwbsftwppdtplgns_options );
+			?>
+			<hr>
+			<h4><?php esc_html_e( 'The ability to add custom code is available in the Pro version. If the Pro version is not available please contact us via Help Center', 'bestwebsoft' ); ?> (<a href="<?php echo esc_url( 'https://support.bestwebsoft.com/hc/en-us/requests/new' ); ?>"><?php echo esc_url( 'https://support.bestwebsoft.com/hc/en-us/requests/new' ); ?></a>)</h4>
+			<?php
+			if ( ! $bws_hide_premium ) {
+				?>
+				<div class="bws_pro_version_bloc pdfprnt-pro-feature">
+					<div class="bws_pro_version_table_bloc">
+						<button type="submit" name="bws_hide_premium_options" class="notice-dismiss bws_hide_premium_options" title="Close"></button>
+						<div class="bws_table_bg"></div>
+						<div class="bws_pro_version">
+							<?php
+							if ( ! current_user_can( 'edit_plugins' ) ) {
+								echo '<p>' . esc_html__( 'You do not have sufficient permissions to edit plugins for this site.', 'bestwebsoft' ) . '</p>';
+								return;
+							}
+
+							$list = array(
+								'css' => array(
+									'description'     => __( 'These styles will be added to the header on all pages of your site.', 'bestwebsoft' ),
+									'learn_more_link' => 'https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_started',
+								),
+								'php' => array(
+									'description'     => sprintf( __( 'This PHP code will be hooked to the %s Action and will be printed on front end only.', 'bestwebsoft' ), '<a href="https://codex.wordpress.org/Plugin_API/Action_Reference/init" target="_blank"><code>init</code></a>' ),
+									'learn_more_link' => 'https://php.net/',
+								),
+								'js'  => array(
+									'description'     => __( 'These code will be added to the header on all pages of your site.', 'bestwebsoft' ),
+									'learn_more_link' => 'https://developer.mozilla.org/en-US/docs/Web/JavaScript',
+								),
+							);
+
+							foreach ( $list as $extension => $extension_data ) {
+								$name = 'js' === $extension ? 'JavaScript' : strtoupper( $extension );
+								?>
+								<p><big>
+										<strong><?php echo esc_html( $name ); ?></strong>
+										<?php
+										if ( ! $this->custom_code_args[ "{$extension}_writeable" ] ) {
+											echo '(' . esc_html__( 'Browsing', 'bestwebsoft' ) . ')';}
+										?>
+									</big>
+								</p>
+								<p class="bws_info">
+									<label>
+										<input type="checkbox" value="1" 
+											<?php
+											if ( $this->custom_code_args[ "is_{$extension}_active" ] ) {
+												echo 'checked';}
+											?>
+										 />
+										<?php printf( esc_html__( 'Activate custom %s code.', 'bestwebsoft' ), esc_html( $name ) ); ?>
+									</label>
+								</p>
+								<textarea cols="70" rows="25" id="bws_newcontent_<?php echo esc_attr( $extension ); ?>" disabled="disabled"><?php
+									if ( isset( $this->custom_code_args[ "content_{$extension}" ] ) ) {
+										echo esc_html( stripslashes_deep( $this->custom_code_args[ "content_{$extension}" ] ) ); }
+									?></textarea>
+								<p class="bws_info">
+									<?php echo esc_html( $extension_data['description'] ); ?>
+									<br>
+									<a href="<?php echo esc_url( $extension_data['learn_more_link'] ); ?>" target="_blank">
+										<?php printf( esc_html__( 'Learn more about %s', 'bestwebsoft' ), esc_html__( $name ) ); ?>
+									</a>
+								</p>
+								<?php
+							}
+							?>
+						</div>
+					</div>
+					<div class="bws_pro_version_tooltip">
+						<a class="bws_button" href="<?php echo esc_url( $this->plugins_info['PluginURI'] ); ?>?k=<?php echo esc_attr( $this->link_key ); ?>&amp;pn=<?php echo esc_attr( $this->link_pn ); ?>&amp;v=<?php echo esc_attr( $this->plugins_info['Version'] ); ?>&amp;wp_v=<?php echo esc_attr( $wp_version ); ?>" target="_blank" title="<?php echo $this->plugins_info["Name"]; ?>">Upgrade to Pro</a>
+						<div class="clear"></div>
+					</div>
+				</div>
+				<?php
+			} else {
+				?>
+				<div class="bws_pro_version_tooltip">
+					<a class="bws_button" href="<?php echo esc_url( $this->plugins_info['PluginURI'] ); ?>?k=<?php echo esc_attr( $this->link_key ); ?>&amp;pn=<?php echo esc_attr( $this->link_pn ); ?>&amp;v=<?php echo esc_attr( $this->plugins_info['Version'] ); ?>&amp;wp_v=<?php echo esc_attr( $wp_version ); ?>" target="_blank" title="<?php echo $this->plugins_info["Name"]; ?>">Upgrade to Pro</a>
+					<div class="clear"></div>
+				</div>
+				<?php
+			}
+		}
+
+		/**
+		 * Display 'misc' tab
+		 *
 		 * @access private
 		 */
-		private function tab_custom_code() { ?>
-            <h3 class="bws_tab_label"><?php _e( 'Custom Code', 'bestwebsoft' ); ?></h3>
+		private function tab_misc() {
+			global $bstwbsftwppdtplgns_options;
+			?>
+			<h3 class="bws_tab_label"><?php esc_html_e( 'Miscellaneous Settings', 'bestwebsoft' ); ?></h3>
 			<?php $this->help_phrase(); ?>
-            <hr>
-			<?php if ( ! current_user_can( 'edit_plugins' ) ) {
-				echo '<p>' . __( 'You do not have sufficient permissions to edit plugins for this site.', 'bestwebsoft' ) . '</p>';
-				return;
-			}
-
-			$list = array(
-				'css' => array( 'description' 	=> __( 'These styles will be added to the header on all pages of your site.', 'bestwebsoft' ),
-				                'learn_more_link'	=> 'https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_started'
-				),
-				'php' => array( 'description' 	=> sprintf( __( 'This PHP code will be hooked to the %s action and will be printed on front end only.', 'bestwebsoft' ), '<a href="https://codex.wordpress.org/Plugin_API/Action_Reference/init" target="_blank"><code>init</code></a>' ),
-				                'learn_more_link'	=> 'https://php.net/'
-				),
-				'js' => array( 'description' 	=> __( 'These code will be added to the header on all pages of your site.', 'bestwebsoft' ),
-				               'learn_more_link'	=> 'https://developer.mozilla.org/en-US/docs/Web/JavaScript'
-				),
-			);
+			<hr>
+			<?php
+			/**
+			 * Action - Display custom options on the Import / Export' tab
+			 */
+			do_action( __CLASS__ . '_additional_misc_options' );
 
-			if ( ! $this->custom_code_args['css_writeable'] ||
-			     ! $this->custom_code_args['php_writeable'] ||
-			     ! $this->custom_code_args['js_writeable'] ) { ?>
-                <p><em><?php printf( __( 'You need to make this files writable before you can save your changes. See %s the Codex %s for more information.', 'bestwebsoft' ),
-							'<a href="https://codex.wordpress.org/Changing_File_Permissions" target="_blank">',
-							'</a>' ); ?></em></p>
-			<?php }
+			if ( ! $this->forbid_view && ! empty( $this->change_permission_attr ) ) {
+				?>
+				<div class="error inline bws_visible"><p><strong><?php esc_html_e( 'Notice', 'bestwebsoft' ); ?>:</strong> <strong><?php printf( esc_html__( 'It is prohibited to change %1$s settings on this site in the %2$s network settings.', 'bestwebsoft' ), esc_html( $this->plugins_info['Name'] ), esc_html( $this->plugins_info['Name'] ) ); ?></strong></p></div>
+				<?php
+			}
+			if ( $this->forbid_view ) {
+				?>
+				<div class="error inline bws_visible"><p><strong><?php esc_html_e( 'Notice', 'bestwebsoft' ); ?>:</strong> <strong><?php printf( esc_html__( 'It is prohibited to view %1$s settings on this site in the %2$s network settings.', 'bestwebsoft' ), esc_html( $this->plugins_info['Name'] ), esc_html( $this->plugins_info['Name'] ) ); ?></strong></p></div>
+			<?php } else { ?>
+				<table class="form-table">
+					<?php
+					/**
+					 * Action - Display custom options on the 'misc' tab
+					 */
+					do_action( __CLASS__ . '_additional_misc_options_affected' );
+					if ( ! empty( $this->pro_page ) && $this->bws_hide_pro_option_exist ) {
+						?>
+						<tr>
+							<th scope="row"><?php esc_html_e( 'Pro Options', 'bestwebsoft' ); ?></th>
+							<td>
+								<label>
+									<input <?php echo esc_attr( wp_kses_data( $this->change_permission_attr ) ); ?> name="bws_hide_premium_options_submit" type="checkbox" value="1" 
+										<?php
+										if ( ! $this->hide_pro_tabs ) {
+											echo 'checked="checked "';}
+										?>
+									/>
+									<span class="bws_info"><?php esc_html_e( 'Enable to display plugin Pro options.', 'bestwebsoft' ); ?></span>
+								</label>
+							</td>
+						</tr>
+					<?php } ?>
+					<tr>
+						<th scope="row"><?php esc_html_e( 'Track Usage', 'bestwebsoft' ); ?></th>
+						<td>
+							<label>
+								<input <?php echo esc_attr( wp_kses_data( $this->change_permission_attr ) ); ?> name="bws_track_usage" type="checkbox" value="1" 
+									<?php
+									if ( ! empty( $bstwbsftwppdtplgns_options['track_usage']['products'][ $this->plugin_basename ] ) ) {
+										echo 'checked="checked "';}
+									?>
+								/>
+								<span class="bws_info"><?php esc_html_e( 'Enable to allow tracking plugin usage anonymously in order to make it better.', 'bestwebsoft' ); ?></span>
+							</label>
+						</td>
+					</tr>
+					<tr>
+						<th scope="row"><?php esc_html_e( 'Default Settings', 'bestwebsoft' ); ?></th>
+						<td>
+							<input<?php echo esc_attr( wp_kses_data( $this->change_permission_attr ) ); ?> name="bws_restore_default" type="submit" class="button" value="<?php esc_html_e( 'Restore Settings', 'bestwebsoft' ); ?>" />
+							<div class="bws_info"><?php esc_html_e( 'This will restore plugin settings to defaults.', 'bestwebsoft' ); ?></div>
+						</td>
+					</tr>
+				</table>
+				<?php
+			}
+		}
 
-			foreach ( $list as $extension => $extension_data ) {
-				$name = 'js' == $extension ? 'JavaScript' : strtoupper( $extension ); ?>
-                <p><big>
-                        <strong><?php echo $name; ?></strong>
-						<?php if ( ! $this->custom_code_args["{$extension}_writeable"] )
-							echo '(' . __( 'Browsing', 'bestwebsoft' ) . ')'; ?>
-                    </big></p>
-                <p class="bws_info">
-                    <label>
-                        <input type="checkbox" name="bws_custom_<?php echo $extension; ?>_active" value="1" <?php if ( $this->custom_code_args["is_{$extension}_active"] ) echo "checked"; ?> />
-						<?php printf( __( 'Activate custom %s code.', 'bestwebsoft' ), $name ); ?>
-                    </label>
-                </p>
-                <textarea cols="70" rows="25" name="bws_newcontent_<?php echo $extension; ?>" id="bws_newcontent_<?php echo $extension; ?>"><?php if ( isset( $this->custom_code_args["content_{$extension}"] ) ) echo esc_textarea( $this->custom_code_args["content_{$extension}"] ); ?></textarea>
-                <p class="bws_info">
-					<?php echo $extension_data['description']; ?>
-                    <br>
-                    <a href="<?php echo esc_url( $extension_data['learn_more_link'] ); ?>" target="_blank">
-						<?php printf( __( 'Learn more about %s', 'bestwebsoft' ), $name ); ?>
-                    </a>
-                </p>
-			<?php }
+		/**
+		 * Display 'Import / Export' tab
+		 *
+		 * @access private
+		 */
+		public function tab_import_export() {
+			?>
+			<h3 class="bws_tab_label"><?php esc_html_e( 'Import / Export', 'bestwebsoft' ); ?></h3>
+			<?php $this->help_phrase(); ?>
+			<hr>
+			<?php
+			/**
+			 * Action - Display custom options on the Import / Export' tab
+			 */
+			do_action( __CLASS__ . '_additional_import_export_options' );
+
+			if ( ! $this->forbid_view && ! empty( $this->change_permission_attr ) ) {
+				?>
+				<div class="error inline bws_visible"><p><strong><?php esc_html_e( 'Notice', 'bestwebsoft' ); ?>:</strong> <strong><?php printf( esc_html__( 'It is prohibited to change %1$s settings on this site in the %2$s network settings.', 'bestwebsoft' ), esc_html( $this->plugins_info['Name'] ), esc_html( $this->plugins_info['Name'] ) ); ?></strong></p></div>
+				<?php
+			}
+			if ( $this->forbid_view ) {
+				?>
+				<div class="error inline bws_visible"><p><strong><?php esc_html_e( 'Notice', 'bestwebsoft' ); ?>:</strong> <strong><?php printf( esc_html__( 'It is prohibited to view %1$s settings on this site in the %2$s network settings.', 'bestwebsoft' ), esc_html( $this->plugins_info['Name'] ), esc_html( $this->plugins_info['Name'] ) ); ?></strong></p></div>
+			<?php } else { ?>
+				<table class="form-table">
+					<?php
+					/**
+					 * Action - Display custom options on the Import / Export' tab
+					 */
+					do_action( __CLASS__ . '_additional_import_export_options_affected' );
+					?>
+				</table>
+				<?php
+			}
 		}
 
 		/**
 		 * Save plugin options to the database
-		 * @access private
-		 * @return array    The action results
-		 */
-		private function save_options_custom_code() {
-			global $bstwbsftwppdtplgns_options;
-			$folder = $this->upload_dir['basedir'] . '/bws-custom-code';
-
-			foreach ( array( 'css', 'php', 'js' ) as $extension ) {
-				$file = 'bws-custom-code.' . $extension;
-				$real_file = $folder . '/' . $file;
-
-				if ( isset( $_POST["bws_newcontent_{$extension}"] ) &&
-				     $this->custom_code_args["{$extension}_writeable"] ) {
-					$newcontent = trim( wp_unslash( $_POST["bws_newcontent_{$extension}"] ) );
-					if ( 'css' == $extension )
-						$newcontent = wp_kses( $newcontent, array( '\'', '\"' ) );
-
-					if ( ! empty( $newcontent ) && isset( $_POST["bws_custom_{$extension}_active"] ) ) {
-						$this->custom_code_args["is_{$extension}_active"] = true;
-						if ( $this->is_multisite ) {
-							$bstwbsftwppdtplgns_options['custom_code'][ $this->custom_code_args['blog_id'] ][ $file ] = ( 'php' == $extension ) ? $real_file : $this->upload_dir['baseurl'] . '/bws-custom-code/' . $file;
-						} else {
-							$bstwbsftwppdtplgns_options['custom_code'][ $file ] = ( 'php' == $extension ) ? $real_file : $this->upload_dir['baseurl'] . '/bws-custom-code/' . $file;
-						}
-					} else {
-						$this->custom_code_args["is_{$extension}_active"] = false;
-						if ( $this->is_multisite ) {
-							if ( isset( $bstwbsftwppdtplgns_options['custom_code'][ $this->custom_code_args['blog_id'] ][ $file ] ) )
-								unset( $bstwbsftwppdtplgns_options['custom_code'][ $this->custom_code_args['blog_id'] ][ $file ] );
-						} else {
-							if ( isset( $bstwbsftwppdtplgns_options['custom_code'][ $file ] ) )
-								unset( $bstwbsftwppdtplgns_options['custom_code'][ $file ] );
-						}
-					}
-					if ( $f = fopen( $real_file, 'w+' ) ) {
-						fwrite( $f, $newcontent );
-						fclose( $f );
-						$this->custom_code_args["content_{$extension}"] = $newcontent;
-					}
-				}
-			}
-
-			if ( $this->is_multisite )
-				update_site_option( 'bstwbsftwppdtplgns_options', $bstwbsftwppdtplgns_options );
-			else
-				update_option( 'bstwbsftwppdtplgns_options', $bstwbsftwppdtplgns_options );
-		}
-
-		/**
-		 * Display 'misc' tab
-		 * @access private
-		 */
-		private function tab_misc() {
-			global $bstwbsftwppdtplgns_options; ?>
-            <h3 class="bws_tab_label"><?php _e( 'Miscellaneous Settings', 'bestwebsoft' ); ?></h3>
-			<?php $this->help_phrase(); ?>
-            <hr>
-			<?php /**
-			 * action - Display custom options on the Import / Export' tab
-			 */
-			do_action( __CLASS__ . '_additional_misc_options' );
-
-			if ( ! $this->forbid_view && ! empty( $this->change_permission_attr ) ) { ?>
-                <div class="error inline bws_visible"><p><strong><?php _e( "Notice", 'bestwebsoft' ); ?>:</strong> <strong><?php printf( __( "It is prohibited to change %s settings on this site in the %s network settings.", 'bestwebsoft' ), $this->plugins_info["Name"], $this->plugins_info["Name"] ); ?></strong></p></div>
-			<?php }
-			if ( $this->forbid_view ) { ?>
-                <div class="error inline bws_visible"><p><strong><?php _e( "Notice", 'bestwebsoft' ); ?>:</strong> <strong><?php printf( __( "It is prohibited to view %s settings on this site in the %s network settings.", 'bestwebsoft' ), $this->plugins_info["Name"], $this->plugins_info["Name"] ); ?></strong></p></div>
-			<?php } else { ?>
-                <table class="form-table">
-					<?php /**
-					 * action - Display custom options on the 'misc' tab
-					 */
-					do_action( __CLASS__ . '_additional_misc_options_affected' );
-					if ( ! empty( $this->pro_page ) && $this->bws_hide_pro_option_exist ) { ?>
-                        <tr>
-                            <th scope="row"><?php _e( 'Pro Options', 'bestwebsoft' ); ?></th>
-                            <td>
-                                <label>
-                                    <input <?php echo $this->change_permission_attr; ?> name="bws_hide_premium_options_submit" type="checkbox" value="1" <?php if ( ! $this->hide_pro_tabs ) echo 'checked="checked "'; ?> />
-                                    <span class="bws_info"><?php _e( 'Enable to display plugin Pro options.', 'bestwebsoft' ); ?></span>
-                                </label>
-                            </td>
-                        </tr>
-					<?php } ?>
-                    <tr>
-                        <th scope="row"><?php _e( 'Track Usage', 'bestwebsoft' ); ?></th>
-                        <td>
-                            <label>
-                                <input <?php echo $this->change_permission_attr; ?> name="bws_track_usage" type="checkbox" value="1" <?php if ( ! empty( $bstwbsftwppdtplgns_options['track_usage']['products'][ $this->plugin_basename ] ) ) echo 'checked="checked "'; ?>/>
-                                <span class="bws_info"><?php _e( 'Enable to allow tracking plugin usage anonymously in order to make it better.', 'bestwebsoft' ); ?></span>
-                            </label>
-                        </td>
-                    </tr>
-                    <tr>
-                        <th scope="row"><?php _e( 'Default Settings', 'bestwebsoft' ); ?></th>
-                        <td>
-                            <input<?php echo $this->change_permission_attr; ?> name="bws_restore_default" type="submit" class="button" value="<?php _e( 'Restore Settings', 'bestwebsoft' ); ?>" />
-                            <div class="bws_info"><?php _e( 'This will restore plugin settings to defaults.', 'bestwebsoft' ); ?></div>
-                        </td>
-                    </tr>
-                </table>
-			<?php }
-		}
-
-		/**
-		 * Display 'Import / Export' tab
-		 * @access private
-		 */
-		public function tab_import_export() { ?>
-            <h3 class="bws_tab_label"><?php _e( 'Import / Export', 'bestwebsoft' ); ?></h3>
-			<?php $this->help_phrase(); ?>
-            <hr>
-			<?php /**
-			 * action - Display custom options on the Import / Export' tab
-			 */
-			do_action( __CLASS__ . '_additional_import_export_options' );
-
-			if ( ! $this->forbid_view && ! empty( $this->change_permission_attr ) ) { ?>
-                <div class="error inline bws_visible"><p><strong><?php _e( "Notice", 'bestwebsoft' ); ?>:</strong> <strong><?php printf( __( "It is prohibited to change %s settings on this site in the %s network settings.", 'bestwebsoft' ), $this->plugins_info["Name"], $this->plugins_info["Name"] ); ?></strong></p></div>
-			<?php }
-			if ( $this->forbid_view ) { ?>
-                <div class="error inline bws_visible"><p><strong><?php _e( "Notice", 'bestwebsoft' ); ?>:</strong> <strong><?php printf( __( "It is prohibited to view %s settings on this site in the %s network settings.", 'bestwebsoft' ), $this->plugins_info["Name"], $this->plugins_info["Name"] ); ?></strong></p></div>
-			<?php } else { ?>
-                <table class="form-table">
-					<?php /**
-					 * action - Display custom options on the Import / Export' tab
-					 */
-					do_action( __CLASS__ . '_additional_import_export_options_affected' ); ?>
-                </table>
-			<?php }
-		}
-
-		/**
-		 * Save plugin options to the database
+		 *
 		 * @access private
 		 */
 		private function save_options_misc() {
@@ -648,81 +741,88 @@
 
 			/* hide premium options */
 			if ( ! empty( $this->pro_page ) ) {
-				if ( isset( $_POST['bws_hide_premium_options'] ) ) {
-					$hide_result = bws_hide_premium_options( $this->options );
+				if ( isset( $_POST['bws_hide_premium_options'] ) && check_admin_referer( $this->plugin_basename, 'bws_nonce_name' ) ) {
+					$hide_result         = bws_hide_premium_options( $this->options );
 					$this->hide_pro_tabs = true;
-					$this->options = $hide_result['options'];
-					if ( ! empty( $hide_result['message'] ) )
+					$this->options       = $hide_result['options'];
+					if ( ! empty( $hide_result['message'] ) ) {
 						$notice = $hide_result['message'];
-					if ( $this->is_network_options )
+					}
+					if ( $this->is_network_options ) {
 						update_site_option( $this->prefix . '_options', $this->options );
-					else
+					} else {
 						update_option( $this->prefix . '_options', $this->options );
-				} else if ( isset( $_POST['bws_hide_premium_options_submit'] ) ) {
+					}
+				} elseif ( isset( $_POST['bws_hide_premium_options_submit'] ) && check_admin_referer( $this->plugin_basename, 'bws_nonce_name' ) ) {
 					if ( ! empty( $this->options['hide_premium_options'] ) ) {
 						$key = array_search( get_current_user_id(), $this->options['hide_premium_options'] );
-						if ( false !== $key )
+						if ( false !== $key ) {
 							unset( $this->options['hide_premium_options'][ $key ] );
-						if ( $this->is_network_options )
+						}
+						if ( $this->is_network_options ) {
 							update_site_option( $this->prefix . '_options', $this->options );
-						else
+						} else {
 							update_option( $this->prefix . '_options', $this->options );
+						}
 					}
 					$this->hide_pro_tabs = false;
 				} else {
 					if ( empty( $this->options['hide_premium_options'] ) ) {
 						$this->options['hide_premium_options'][] = get_current_user_id();
-						if ( $this->is_network_options )
+						if ( $this->is_network_options ) {
 							update_site_option( $this->prefix . '_options', $this->options );
-						else
+						} else {
 							update_option( $this->prefix . '_options', $this->options );
+						}
 					}
 					$this->hide_pro_tabs = true;
 				}
 			}
 			/* Save 'Track Usage' option */
-			if ( isset( $_POST['bws_track_usage'] ) ) {
+			if ( isset( $_POST['bws_track_usage'] ) && check_admin_referer( $this->plugin_basename, 'bws_nonce_name' ) ) {
 				if ( empty( $bstwbsftwppdtplgns_options['track_usage']['products'][ $this->plugin_basename ] ) ) {
 					$bstwbsftwppdtplgns_options['track_usage']['products'][ $this->plugin_basename ] = true;
 					$track_usage = true;
 				}
 			} else {
 				if ( ! empty( $bstwbsftwppdtplgns_options['track_usage']['products'][ $this->plugin_basename ] ) ) {
-					unset( $bstwbsftwppdtplgns_options['track_usage']['products'][ $this->plugin_basename ] ); false;
+					unset( $bstwbsftwppdtplgns_options['track_usage']['products'][ $this->plugin_basename ] );
+					false;
 					$track_usage = false;
 				}
 			}
 			if ( isset( $track_usage ) ) {
 				$usage_id = ! empty( $bstwbsftwppdtplgns_options['track_usage']['usage_id'] ) ? $bstwbsftwppdtplgns_options['track_usage']['usage_id'] : false;
 				/* send data */
-				$options = array(
-					'timeout' => 3,
-					'body' => array(
-						'url' 			=> get_bloginfo( 'url' ),
-						'wp_version' 	=> $wp_version,
-						'is_active'		=> $track_usage,
-						'product'		=> $this->plugin_basename,
-						'version'		=> $this->plugins_info['Version'],
-						'usage_id'		=> $usage_id,
+				$options      = array(
+					'timeout'    => 3,
+					'body'       => array(
+						'url'        => get_bloginfo( 'url' ),
+						'wp_version' => $wp_version,
+						'is_active'  => $track_usage,
+						'product'    => $this->plugin_basename,
+						'version'    => $this->plugins_info['Version'],
+						'usage_id'   => $usage_id,
 					),
-					'user-agent' => 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' )
+					'user-agent' => 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' ),
 				);
 				$raw_response = wp_remote_post( 'https://bestwebsoft.com/wp-content/plugins/products-statistics/track-usage/', $options );
 
-				if ( ! is_wp_error( $raw_response ) && 200 == wp_remote_retrieve_response_code( $raw_response ) ) {
+				if ( ! is_wp_error( $raw_response ) && 200 === intval( wp_remote_retrieve_response_code( $raw_response ) ) ) {
 					$response = maybe_unserialize( wp_remote_retrieve_body( $raw_response ) );
 
 					if ( is_array( $response ) &&
-					     ! empty( $response['usage_id'] ) &&
-					     $response['usage_id'] != $usage_id ) {
+						! empty( $response['usage_id'] ) &&
+						$response['usage_id'] !== $usage_id ) {
 						$bstwbsftwppdtplgns_options['track_usage']['usage_id'] = $response['usage_id'];
 					}
 				}
 
-				if ( $this->is_multisite )
+				if ( $this->is_multisite ) {
 					update_site_option( 'bstwbsftwppdtplgns_options', $bstwbsftwppdtplgns_options );
-				else
+				} else {
 					update_option( 'bstwbsftwppdtplgns_options', $bstwbsftwppdtplgns_options );
+				}
 			}
 
 			return compact( 'notice' );
@@ -732,329 +832,346 @@
 		 *
 		 */
 		public function tab_license() {
-			global $wp_version, $bstwbsftwppdtplgns_options; ?>
-            <h3 class="bws_tab_label"><?php _e( 'License Key', 'bestwebsoft' ); ?></h3>
+			global $wp_version, $bstwbsftwppdtplgns_options;
+			?>
+			<h3 class="bws_tab_label"><?php esc_html_e( 'License Key', 'bestwebsoft' ); ?></h3>
 			<?php $this->help_phrase(); ?>
-            <hr>
+			<hr>
 			<?php
 			foreach ( $this->licenses as $single_license ) {
-				$pro_plugin_name = ( strpos( $single_license['name'], 'Pro' ) ) ? $single_license['name'] : $single_license['name'] . ' ' . 'Pro';
-				if ( ! empty( $this->pro_page ) || ! empty( $single_license['pro_basename'] )  ) {
+				$pro_plugin_name = ( strpos( $single_license['name'], 'Pro' ) ) ? $single_license['name'] : $single_license['name'] . ' Pro';
+				if ( ! empty( $this->pro_page ) || ! empty( $single_license['pro_basename'] ) ) {
 
 					if ( $this->pro_plugin_is_activated && ( empty( $single_license['pro_basename'] ) || isset( $this->bws_license_plugin ) ) ) {
-						$url = 'https://bestwebsoft.com/wp-content/plugins/paid-products/plugins/downloads/?bws_first_download=' . $this->bws_license_plugin . '&bws_license_key=' . $bstwbsftwppdtplgns_options[ $this->bws_license_plugin ] . '&download_from=5'; ?>
+						$url = 'https://bestwebsoft.com/wp-content/plugins/paid-products/plugins/downloads/?bws_first_download=' . $this->bws_license_plugin . '&bws_license_key=' . $bstwbsftwppdtplgns_options[ $this->bws_license_plugin ] . '&download_from=5';
+						?>
 						<table class="form-table">
-                            <tr>
-                                <th scope="row"><?php echo $pro_plugin_name . ' License'; ?></th>
-                                <td>
-                                    <p>
-										<strong><?php _e( 'Your Pro plugin is ready', 'bestwebsoft' ); ?></strong>
+							<tr>
+								<th scope="row"><?php echo wp_kses_data( $pro_plugin_name ) . ' License'; ?></th>
+								<td>
+									<p>
+										<strong><?php esc_html_e( 'Your Pro plugin is ready', 'bestwebsoft' ); ?></strong>
 										<br>
-										<?php _e( 'Your plugin has been zipped, and now is ready to download.', 'bestwebsoft' ); ?>
+										<?php esc_html_e( 'Your plugin has been zipped, and now is ready to download.', 'bestwebsoft' ); ?>
 									</p>
 									<p>
-										<a class="button button-secondary" target="_parent" href="<?php echo esc_url( $url ); ?>"><?php _e( 'Download Now', 'bestwebsoft' ); ?></a>
+										<a class="button button-secondary" target="_parent" href="<?php echo esc_url( $url ); ?>"><?php esc_html_e( 'Download Now', 'bestwebsoft' ); ?></a>
 									</p>
 									<br>
 									<p>
-										<strong><?php _e( 'Need help installing the plugin?', 'bestwebsoft' ); ?></strong>
+										<strong><?php esc_html_e( 'Need help installing the plugin?', 'bestwebsoft' ); ?></strong>
 										<br>
-										<a target="_blank" href="https://docs.google.com/document/d/1-hvn6WRvWnOqj5v5pLUk7Awyu87lq5B_dO-Tv-MC9JQ/"><?php _e( 'How to install WordPress plugin from your admin Dashboard (ZIP archive)', 'bestwebsoft' ); ?></a>
+										<a target="_blank" href="https://bestwebsoft.com/documentation/how-to-install-a-wordpress-product/how-to-install-a-wordpress-plugin/"><?php esc_html_e( 'How to install WordPress plugin from your admin Dashboard (ZIP archive)', 'bestwebsoft' ); ?></a>
 									</p>
 									<br>					
 									<p>
-										<strong><?php _e( 'Get Started', 'bestwebsoft' ); ?></strong>
+										<strong><?php esc_html_e( 'Get Started', 'bestwebsoft' ); ?></strong>
 										<br>
-										<a target="_blank" href="https://drive.google.com/drive/u/0/folders/0B5l8lO-CaKt9VGh0a09vUjNFNjA"><?php _e( 'Documentation', 'bestwebsoft' ); ?></a>
+										<a target="_blank" href="https://bestwebsoft.com/documentation/"><?php esc_html_e( 'Documentation', 'bestwebsoft' ); ?></a>
 										<br>
-										<a target="_blank" href="https://www.youtube.com/user/bestwebsoft"><?php _e( 'Video Instructions', 'bestwebsoft' ); ?></a>
+										<a target="_blank" href="https://www.youtube.com/user/bestwebsoft"><?php esc_html_e( 'Video Instructions', 'bestwebsoft' ); ?></a>
 										<br>
-										<a target="_blank" href="https://support.bestwebsoft.com"><?php _e( 'Knowledge Base', 'bestwebsoft' ); ?></a>
+										<a target="_blank" href="https://support.bestwebsoft.com"><?php esc_html_e( 'Knowledge Base', 'bestwebsoft' ); ?></a>
 									</p>
-                                </td>
-                            </tr>
-                        </table>
-					<?php } else {
+								</td>
+							</tr>
+						</table>
+						<?php
+					} else {
 						$attr = $license_key = '';
 						if ( isset( $bstwbsftwppdtplgns_options['go_pro'][ $this->bws_license_plugin ]['count'] ) &&
-						     '5' < $bstwbsftwppdtplgns_options['go_pro'][ $this->bws_license_plugin ]['count'] &&
-						     $bstwbsftwppdtplgns_options['go_pro'][ $this->bws_license_plugin ]['time'] > ( time() - ( 24 * 60 * 60 ) ) )
+							'5' < $bstwbsftwppdtplgns_options['go_pro'][ $this->bws_license_plugin ]['count'] &&
+							$bstwbsftwppdtplgns_options['go_pro'][ $this->bws_license_plugin ]['time'] > ( time() - ( 24 * 60 * 60 ) ) ) {
 							$attr = 'disabled="disabled"';
+						}
 
 						if ( ! empty( $single_license['pro_basename'] ) ) {
 							$license_key = ! empty( $bstwbsftwppdtplgns_options[ $single_license['pro_basename'] ] ) ? $bstwbsftwppdtplgns_options[ $single_license['pro_basename'] ] : '';
-						} ?>
-                        <table class="form-table">
-                            <tr>
-                                <th scope="row"><?php echo $pro_plugin_name . ' License'; ?></th>
-                                <td>
-                                    <input <?php echo $attr; ?> type="text" name="bws_license_key_<?php echo ( ! empty( $single_license['pro_slug'] ) ) ? $single_license['pro_slug'] : $single_license['slug']; ?>" value="<?php echo esc_attr( $license_key ); ?>" />
-                                    <input <?php echo $attr; ?> type="hidden" name="bws_license_plugin_<?php echo ( ! empty( $single_license['pro_slug'] ) ) ? $single_license['pro_slug'] : $single_license['slug']; ?>" value="<?php echo esc_attr( ( ! empty( $single_license['pro_slug'] ) ) ? $single_license['pro_slug'] : $single_license['slug'] ); ?>" />
-                                    <input <?php echo $attr; ?> type="submit" class="button button-secondary" name="bws_license_submit" value="<?php _e( 'Activate', 'bestwebsoft' ); ?>" />
-                                    <div class="bws_info">
-										<?php printf( __( 'Enter your license key to activate %s and get premium plugin features.', 'bestwebsoft' ), '<a href="' . $this->bws_plugin_link . '" target="_blank" title="' . $pro_plugin_name . '">' . $pro_plugin_name . '</a>' ); ?>
-                                    </div>
-									<?php if ( '' != $attr ) { ?>
-                                        <p><?php _e( "Unfortunately, you have exceeded the number of available tries per day. Please, upload the plugin manually.", 'bestwebsoft' ); ?></p>
-									<?php }
-									if ( $this->trial_days !== false )
-										echo '<p>' . __( 'or', 'bestwebsoft' ) . ' <a href="' . esc_url( $this->plugins_info['PluginURI'] . 'trial/?k=' . $this->link_key . '&pn=' . $this->link_pn . '&v=' . $this->plugins_info["Version"] . '&wp_v=' . $wp_version ) . '" target="_blank">' . sprintf( __( 'Start Your Free %s-Day Trial Now', 'bestwebsoft' ), $this->trial_days ) . '</a></p>'; ?>
-                                </td>
-                            </tr>
-                        </table>
-					<?php }
+						}
+						?>
+						<table class="form-table">
+							<tr>
+								<th scope="row"><?php echo esc_html( $pro_plugin_name ) . ' License'; ?></th>
+								<td>
+									<input <?php echo wp_kses_data( $attr ); ?> type="text" name="bws_license_key_<?php echo esc_attr( ( ! empty( $single_license['pro_slug'] ) ) ? $single_license['pro_slug'] : $single_license['slug'] ); ?>" value="<?php echo esc_attr( $license_key ); ?>" />
+									<input <?php echo wp_kses_data( $attr ); ?> type="hidden" name="bws_license_plugin_<?php echo esc_attr( ( ! empty( $single_license['pro_slug'] ) ) ? $single_license['pro_slug'] : $single_license['slug'] ); ?>" value="<?php echo esc_attr( ( ! empty( $single_license['pro_slug'] ) ) ? $single_license['pro_slug'] : $single_license['slug'] ); ?>" />
+									<input <?php echo wp_kses_data( $attr ); ?> type="submit" class="button button-secondary" name="bws_license_submit" value="<?php esc_html_e( 'Activate', 'bestwebsoft' ); ?>" />
+									<input type="hidden" name="_wpnonce" value="<?php echo wp_create_nonce( 'bws_license_key_nonce' ); ?>" />
+									<div class="bws_info">
+										<?php printf( esc_html__( 'Enter your license key to activate %s and get premium plugin features.', 'bestwebsoft' ), '<a href="' . esc_url( $this->bws_plugin_link ) . '" target="_blank" title="' . esc_html( $pro_plugin_name ) . '">' . esc_html( $pro_plugin_name ) . '</a>' ); ?>
+									</div>
+									<?php if ( '' !== $attr ) { ?>
+										<p><?php esc_html_e( 'Unfortunately, you have exceeded the number of available tries per day. Please, upload the plugin manually.', 'bestwebsoft' ); ?></p>
+										<?php
+									}
+									if ( false !== $this->trial_days ) {
+										echo '<p>' . esc_html__( 'or', 'bestwebsoft' ) . ' <a href="' . esc_url( $this->plugins_info['PluginURI'] . 'trial/?k=' . $this->link_key . '&pn=' . $this->link_pn . '&v=' . $this->plugins_info['Version'] . '&wp_v=' . $wp_version ) . '" target="_blank">' . sprintf( esc_html__( 'Start Your Free %s-Day Trial Now', 'bestwebsoft' ), esc_attr( $this->trial_days ) ) . '</a></p>';
+									}
+									?>
+								</td>
+							</tr>
+						</table>
+						<?php
+					}
 				} else {
 					global $bstwbsftwppdtplgns_options;
-					$license_key = ( isset( $bstwbsftwppdtplgns_options[ $single_license['basename'] ] ) ) ? $bstwbsftwppdtplgns_options[ $single_license['basename'] ] : ''; ?>
-                    <table class="form-table">
-                        <tr>
-                            <th scope="row"><?php echo $pro_plugin_name . ' License'; ?></th>
-                            <td>
-                                <input type="text" maxlength="100" name="bws_license_key_<?php echo $single_license['slug']; ?>" value="<?php echo esc_attr( $license_key ); ?>" />
-                                <input type="submit" class="button button-secondary" name="bws_license_submit" value="<?php _e( 'Check license key', 'bestwebsoft' ); ?>" />
-                                <div class="bws_info">
-									<?php _e( 'If necessary, you can check if the license key is correct or reenter it in the field below.', 'bestwebsoft' ); ?>
-                                </div>
-                            </td>
-                        </tr>
-                    </table>
-				<?php }
-			} ?>
-            <table class="form-table">
-                <tr>
-                    <th scope="row"><?php _e( 'Manage License Settings', 'bestwebsoft' ); ?></th>
-                    <td>
-                        <a class="button button-secondary" href="https://bestwebsoft.com/client-area" target="_blank"><?php _e( 'Login to Client Area', 'bestwebsoft' ); ?></a>
-                        <div class="bws_info">
-							<?php _e( 'Manage active licenses, download BWS products, and view your payment history using BestWebSoft Client Area.', 'bestwebsoft' ); ?>
-                        </div>
-                    </td>
-                </tr>
-            </table>
-		<?php }
+					$license_key = ( isset( $bstwbsftwppdtplgns_options[ $single_license['basename'] ] ) ) ? $bstwbsftwppdtplgns_options[ $single_license['basename'] ] : '';
+					?>
+					<table class="form-table">
+						<tr>
+							<th scope="row"><?php echo esc_html( $pro_plugin_name ) . ' License'; ?></th>
+							<td>
+								<input type="text" maxlength="100" name="bws_license_key_<?php echo esc_attr( $single_license['slug'] ); ?>" value="<?php echo esc_attr( $license_key ); ?>" />
+								<input type="submit" class="button button-secondary" name="bws_license_submit" value="<?php esc_html_e( 'Check license key', 'bestwebsoft' ); ?>" />
+								<div class="bws_info">
+									<?php esc_html_e( 'If necessary, you can check if the license key is correct or reenter it in the field below.', 'bestwebsoft' ); ?>
+								</div>
+							</td>
+						</tr>
+					</table>
+					<?php
+				}
+			}
+			?>
+			<table class="form-table">
+				<tr>
+					<th scope="row"><?php esc_html_e( 'Manage License Settings', 'bestwebsoft' ); ?></th>
+					<td>
+						<a class="button button-secondary" href="https://bestwebsoft.com/client-area" target="_blank"><?php esc_html_e( 'Login to Client Area', 'bestwebsoft' ); ?></a>
+						<div class="bws_info">
+							<?php esc_html_e( 'Manage active licenses, download BWS products, and view your payment history using BestWebSoft Client Area.', 'bestwebsoft' ); ?>
+						</div>
+					</td>
+				</tr>
+			</table>
+			<?php
+		}
 
 		/**
 		 * Save plugin options to the database
+		 *
 		 * @access private
 		 * @param  ab
-		 * @return array    The action results
+		 * @return array    The Action results
 		 */
 		private function save_options_license_key() {
-			global $wp_version, $bstwbsftwppdtplgns_options;
+			global $wp_version, $bstwbsftwppdtplgns_options, $wp_filesystem;
 			/*$empty_field_error - added to avoid error when 1 field is empty while another field contains license key*/
-			
-			$error = $message = $empty_field_error = '';
-			
-			foreach ( $this->licenses as $single_license) {
-				$bws_license_key = ( isset( $_POST[ ( ! empty( $single_license['pro_slug'] ) ) ? 'bws_license_key_' . $single_license['pro_slug'] : 'bws_license_key_' . $single_license['slug'] ] ) ) ? stripslashes( sanitize_text_field( $_POST[ ( ! empty( $single_license['pro_slug'] ) ) ? 'bws_license_key_' . $single_license['pro_slug'] : 'bws_license_key_' . $single_license['slug'] ] ) ) : '';
-				if ( '' != $bws_license_key ) {
-					if ( strlen( $bws_license_key ) != 18 ) {
-						$error = __( 'Wrong license key', 'bestwebsoft' );
-					} else {
-
-						/* CHECK license key */
-						if ( $this->is_pro && empty( $single_license['pro_basename'] ) ) {
-							delete_transient( 'bws_plugins_update' );
-							if ( ! $this->all_plugins ) {
-								if ( ! function_exists( 'get_plugins' ) ) {
-									require_once( ABSPATH . 'wp-admin/includes/plugin.php' );
-								}
-								$this->all_plugins = get_plugins();
-							}
-							$current = get_site_transient( 'update_plugins' );
-
-							if ( ! empty( $this->all_plugins ) && ! empty( $current ) && isset( $current->response ) && is_array( $current->response ) ) {
-								$to_send = array();
-								$to_send["plugins"][ $single_license['basename'] ] = $this->all_plugins[ $single_license['basename'] ];
-								$to_send["plugins"][ $single_license['basename'] ]["bws_license_key"] = $bws_license_key;
-								$to_send["plugins"][ $single_license['basename'] ]["bws_illegal_client"] = true;
-								$options                                                            = array(
-									'timeout'    => ( ( defined( 'DOING_CRON' ) && DOING_CRON ) ? 30 : 3 ),
-									'body'       => array( 'plugins' => serialize( $to_send ) ),
-									'user-agent' => 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' )
-								);
-								$raw_response = wp_remote_post( 'https://bestwebsoft.com/wp-content/plugins/paid-products/plugins/pro-license-check/1.0/', $options );
 
-								if ( is_wp_error( $raw_response ) || 200 != wp_remote_retrieve_response_code( $raw_response ) ) {
-									$error = __( 'Something went wrong. Please try again later. If the error appears again, please contact us', 'bestwebsoft' ) . ': <a href=https://support.bestwebsoft.com>BestWebSoft</a>. ' . __( 'We are sorry for inconvenience.', 'bestwebsoft' );
-								} else {
-									$response = maybe_unserialize( wp_remote_retrieve_body( $raw_response ) );
-									if ( is_array( $response ) && ! empty( $response ) ) {
-										foreach ( $response as $single_response ) {
-											if ( "wrong_license_key" == $single_response->package ) {
-												$error = __( 'Wrong license key.', 'bestwebsoft' );
-											} else if ( "wrong_domain" == $single_response->package ) {
-												$error = __( 'This license key is bound to another site.', 'bestwebsoft' );
-											} else if ( "time_out" == $single_response->package ) {
-												$message = __( 'This license key is valid, but Your license has expired. If you want to update our plugin in future, you should extend the license.', 'bestwebsoft' );
-											} elseif ( "you_are_banned" == $single_response->package ) {
-												$error = __( "Unfortunately, you have exceeded the number of available tries.", 'bestwebsoft' );
-											} elseif ( "duplicate_domen_for_trial" == $single_response->package ) {
-												$error = __( "Unfortunately, the Pro Trial licence was already installed to this domain. The Pro Trial license can be installed only once.", 'bestwebsoft' );
-											}
-											if ( empty( $error ) ) {
-												if ( empty( $message ) ) {
-													if ( isset( $single_response->trial ) ) {
-														$message = __( 'The Pro Trial license key is valid.', 'bestwebsoft' );
-													} else {
-														$message = __( 'The license key is valid.', 'bestwebsoft' );
-													}
+			$error = $message = $empty_field_error = '';
 
-													if ( ! empty( $single_response->time_out ) ) {
-														$message .= ' ' . __( 'Your license will expire on', 'bestwebsoft' ) . ' ' . $single_response->time_out . '.';
-													} else {
-														/* lifetime */
-														$single_response->time_out = NULL;
-													}
-
-													if ( isset( $single_response->trial ) && $this->is_trial ) {
-														$message .= ' ' . sprintf( __( 'In order to continue using the plugin it is necessary to buy a %s license.', 'bestwebsoft' ), '<a href="' . esc_url( $this->plugins_info['PluginURI'] . '?k=' . $this->link_key . '&pn=' . $this->link_pn . '&v=' . $this->plugins_info["Version"] . '&wp_v=' . $wp_version ) . '" target="_blank" title="' . $this->plugins_info["Name"] . '">Pro</a>' );
-													}
-												}
+			if ( ! isset( $_REQUEST['_wpnonce'] ) || ! wp_verify_nonce( sanitize_text_field( wp_unslash( $_REQUEST['_wpnonce'] ) ), 'bws_license_key_nonce' ) ) {
+					die( __( 'Security check', 'bestwebsoft' ) );
+			} else {
 
-												if ( isset( $single_response->trial ) ) {
-													$bstwbsftwppdtplgns_options['trial'][ $single_license['basename'] ] = 1;
-												} else {
-													unset( $bstwbsftwppdtplgns_options['trial'][ $single_license['basename'] ] );
-												}
-
-												if ( isset( $single_response->nonprofit ) ) {
-													$bstwbsftwppdtplgns_options['nonprofit'][ $single_license['basename'] ] = 1;
-												} else {
-													unset( $bstwbsftwppdtplgns_options['nonprofit'][ $single_license['basename'] ] );
-												}
-
-												if ( ! isset( $bstwbsftwppdtplgns_options[ $single_license['basename'] ] ) || $bstwbsftwppdtplgns_options[ $single_license['basename'] ] != $bws_license_key ) {
-													$bstwbsftwppdtplgns_options[ $single_license['basename'] ] = $bws_license_key;
-
-													$file = @fopen( dirname( dirname( __FILE__ ) ) . "/license_key.txt", "w+" );
-													if ( $file ) {
-														@fwrite( $file, $bws_license_key );
-														@fclose( $file );
-													}
-													$update_option = true;
-												}
-
-												if ( isset( $bstwbsftwppdtplgns_options['wrong_license_key'][ $single_license['basename'] ] ) ) {
-													unset( $bstwbsftwppdtplgns_options['wrong_license_key'][ $single_license['basename'] ] );
-													$update_option = true;
-												}
-
-												if ( ! isset( $bstwbsftwppdtplgns_options['time_out'][ $single_license['basename'] ] ) || $bstwbsftwppdtplgns_options['time_out'][ $single_license['basename'] ] != $single_response->time_out ) {
-													$bstwbsftwppdtplgns_options['time_out'][ $single_license['basename'] ] = $single_response->time_out;
-													$update_option = true;
-												}
+				foreach ( $this->licenses as $single_license ) {
+					$bws_license_key = ( isset( $_POST[ ( ! empty( $single_license['pro_slug'] ) ) ? 'bws_license_key_' . $single_license['pro_slug'] : 'bws_license_key_' . $single_license['slug'] ] ) ) ? sanitize_text_field( wp_unslash( $_POST[ ( ! empty( $single_license['pro_slug'] ) ) ? 'bws_license_key_' . $single_license['pro_slug'] : 'bws_license_key_' . $single_license['slug'] ] ) ) : '';
+					if ( '' !== $bws_license_key ) {
+						if ( strlen( $bws_license_key ) !== 18 ) {
+							$error = __( 'Wrong license key', 'bestwebsoft' );
+						} else {
+							/* CHECK license key */
+							if ( $this->is_pro && empty( $single_license['pro_basename'] ) ) {
+								delete_transient( 'bws_plugins_update' );
+								if ( ! $this->all_plugins ) {
+									if ( ! function_exists( 'get_plugins' ) ) {
+										require_once ABSPATH . 'wp-admin/includes/plugin.php';
+									}
+									$this->all_plugins = get_plugins();
+								}
+								$current = get_site_transient( 'update_plugins' );
 
-												if ( isset( $update_option ) ) {
-													if ( $this->is_multisite ) {
-														update_site_option( 'bstwbsftwppdtplgns_options', $bstwbsftwppdtplgns_options );
-													} else {
-														update_option( 'bstwbsftwppdtplgns_options', $bstwbsftwppdtplgns_options );
-													}
-												}
-											}
-										}
-									} else {
-										$error = __( 'Something went wrong. Please try again later. If the error appears again, please contact us', 'bestwebsoft' ) . ' <a href=https://support.bestwebsoft.com>BestWebSoft</a>. ' . __( 'We are sorry for inconvenience.', 'bestwebsoft' );
-									}
-								}
-							}
-							/* Go Pro */
-						} else {
-
-							$bws_license_plugin = stripslashes( sanitize_text_field( $_POST[ ( ! empty( $single_license['pro_slug'] ) ) ? 'bws_license_plugin_' .  $single_license['pro_slug'] : 'bws_license_plugin_' .  $single_license['slug'] ] ) );
-							if ( isset( $bstwbsftwppdtplgns_options['go_pro'][ $bws_license_plugin ]['count'] ) && $bstwbsftwppdtplgns_options['go_pro'][ $bws_license_plugin ]['time'] > ( time() - ( 24 * 60 * 60 ) ) ) {
-								$bstwbsftwppdtplgns_options['go_pro'][ $bws_license_plugin ]['count'] = $bstwbsftwppdtplgns_options['go_pro'][ $bws_license_plugin ]['count'] + 1;
-							} else {
-								$bstwbsftwppdtplgns_options['go_pro'][ $bws_license_plugin ]['count'] = 1;
-								$bstwbsftwppdtplgns_options['go_pro'][ $bws_license_plugin ]['time']  = time();
-							}
-
-							/* download Pro */
-							if ( ! $this->all_plugins ) {
-								if ( ! function_exists( 'get_plugins' ) ) {
-									require_once( ABSPATH . 'wp-admin/includes/plugin.php' );
-								}
-								$this->all_plugins = get_plugins();
-							}
-
-							if ( ! array_key_exists( $bws_license_plugin, $this->all_plugins ) ) {
-								$current = get_site_transient( 'update_plugins' );
-								if ( ! empty( $current ) && isset( $current->response ) && is_array( $current->response ) ) {
-									$to_send                                                         = array();
-									$to_send["plugins"][ $bws_license_plugin ]                       = array();
-									$to_send["plugins"][ $bws_license_plugin ]["bws_license_key"]    = $bws_license_key;
-									$to_send["plugins"][ $bws_license_plugin ]["bws_illegal_client"] = true;
-									$options                                                         = array(
+								if ( ! empty( $this->all_plugins ) && ! empty( $current ) && isset( $current->response ) && is_array( $current->response ) ) {
+									$to_send = array();
+									$to_send['plugins'][ $single_license['basename'] ]                       = $this->all_plugins[ $single_license['basename'] ];
+									$to_send['plugins'][ $single_license['basename'] ]['bws_license_key']    = $bws_license_key;
+									$to_send['plugins'][ $single_license['basename'] ]['bws_illegal_client'] = true;
+									$options      = array(
 										'timeout'    => ( ( defined( 'DOING_CRON' ) && DOING_CRON ) ? 30 : 3 ),
 										'body'       => array( 'plugins' => serialize( $to_send ) ),
-										'user-agent' => 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' )
+										'user-agent' => 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' ),
 									);
 									$raw_response = wp_remote_post( 'https://bestwebsoft.com/wp-content/plugins/paid-products/plugins/pro-license-check/1.0/', $options );
 
-									if ( is_wp_error( $raw_response ) || 200 != wp_remote_retrieve_response_code( $raw_response ) ) {
-										$error = __( "Something went wrong. Please try again later. If the error appears again, please contact us", 'bestwebsoft' ) . ': <a href="https://support.bestwebsoft.com">BestWebSoft</a>. ' . __( "We are sorry for inconvenience.", 'bestwebsoft' );
+									if ( is_wp_error( $raw_response ) || 200 !== intval( wp_remote_retrieve_response_code( $raw_response ) ) ) {
+										$error = __( 'Something went wrong. Please try again later. If the error appears again, please contact us', 'bestwebsoft' ) . ': <a href=https://support.bestwebsoft.com>BestWebSoft</a>. ' . __( 'We are sorry for inconvenience.', 'bestwebsoft' );
 									} else {
 										$response = maybe_unserialize( wp_remote_retrieve_body( $raw_response ) );
 										if ( is_array( $response ) && ! empty( $response ) ) {
 											foreach ( $response as $single_response ) {
-												if ( "wrong_license_key" == $single_response->package ) {
-													$error = __( "Wrong license key.", 'bestwebsoft' );
-												} elseif ( "wrong_domain" == $single_response->package ) {
-													$error = __( "This license key is bound to another site.", 'bestwebsoft' );
-												} elseif ( "you_are_banned" == $single_response->package ) {
-													$error = __( "Unfortunately, you have exceeded the number of available tries per day. Please, upload the plugin manually.", 'bestwebsoft' );
-												} elseif ( "time_out" == $single_response->package ) {
-													$error = sprintf( __( "Unfortunately, Your license has expired. To continue getting top-priority support and plugin updates, you should extend it in your %s.", 'bestwebsoft' ), ' <a href="https://bestwebsoft.com/client-area">Client Area</a>' );
-												} elseif ( "duplicate_domen_for_trial" == $single_response->package ) {
-													$error = __( "Unfortunately, the Pro licence was already installed to this domain. The Pro Trial license can be installed only once.", 'bestwebsoft' );
+												if ( 'wrong_license_key' === $single_response->package ) {
+													$error = __( 'Wrong license key.', 'bestwebsoft' );
+												} elseif ( 'wrong_domain' === $single_response->package ) {
+													$error = __( 'This license key is bound to another site.', 'bestwebsoft' );
+												} elseif ( 'time_out' === $single_response->package ) {
+													$message = __( 'This license key is valid, but Your license has expired. If you want to update our plugin in future, you should extend the license.', 'bestwebsoft' );
+												} elseif ( 'you_are_banned' === $single_response->package ) {
+													$error = __( 'Unfortunately, you have exceeded the number of available tries.', 'bestwebsoft' );
+												} elseif ( 'duplicate_domen_for_trial' === $single_response->package ) {
+													$error = __( 'Unfortunately, the Pro Trial licence was already installed to this domain. The Pro Trial license can be installed only once.', 'bestwebsoft' );
+												}
+												if ( empty( $error ) ) {
+													if ( empty( $message ) ) {
+														if ( isset( $single_response->trial ) ) {
+															$message = __( 'The Pro Trial license key is valid.', 'bestwebsoft' );
+														} else {
+															$message = __( 'The license key is valid.', 'bestwebsoft' );
+														}
+
+														if ( ! empty( $single_response->time_out ) ) {
+															$message .= ' ' . __( 'Your license will expire on', 'bestwebsoft' ) . ' ' . $single_response->time_out . '.';
+														} else {
+															/* lifetime */
+															$single_response->time_out = null;
+														}
+
+														if ( isset( $single_response->trial ) && $this->is_trial ) {
+															$message .= ' ' . sprintf( __( 'In order to continue using the plugin it is necessary to buy a %s license.', 'bestwebsoft' ), '<a href="' . esc_url( $this->plugins_info['PluginURI'] . '?k=' . $this->link_key . '&pn=' . $this->link_pn . '&v=' . $this->plugins_info['Version'] . '&wp_v=' . $wp_version ) . '" target="_blank" title="' . $this->plugins_info['Name'] . '">Pro</a>' );
+														}
+													}
+
+													if ( isset( $single_response->trial ) ) {
+														$bstwbsftwppdtplgns_options['trial'][ $single_license['basename'] ] = 1;
+													} else {
+														unset( $bstwbsftwppdtplgns_options['trial'][ $single_license['basename'] ] );
+													}
+
+													if ( isset( $single_response->nonprofit ) ) {
+														$bstwbsftwppdtplgns_options['nonprofit'][ $single_license['basename'] ] = 1;
+													} else {
+														unset( $bstwbsftwppdtplgns_options['nonprofit'][ $single_license['basename'] ] );
+													}
+
+													if ( ! isset( $bstwbsftwppdtplgns_options[ $single_license['basename'] ] ) || $bstwbsftwppdtplgns_options[ $single_license['basename'] ] !== $bws_license_key ) {
+														$bstwbsftwppdtplgns_options[ $single_license['basename'] ] = $bws_license_key;
+
+														WP_Filesystem();
+														if ( $wp_filesystem->put_contents( dirname( dirname( __FILE__ ) ) . '/license_key.txt', $bws_license_key, 0755 ) ) {
+															$update_option = true;
+														}
+													}
+
+													if ( isset( $bstwbsftwppdtplgns_options['wrong_license_key'][ $single_license['basename'] ] ) ) {
+														unset( $bstwbsftwppdtplgns_options['wrong_license_key'][ $single_license['basename'] ] );
+														$update_option = true;
+													}
+
+													if ( ! isset( $bstwbsftwppdtplgns_options['time_out'][ $single_license['basename'] ] ) || $bstwbsftwppdtplgns_options['time_out'][ $single_license['basename'] ] !== $single_response->time_out ) {
+														$bstwbsftwppdtplgns_options['time_out'][ $single_license['basename'] ] = $single_response->time_out;
+														$update_option = true;
+													}
+
+													if ( isset( $update_option ) ) {
+														if ( $this->is_multisite ) {
+															update_site_option( 'bstwbsftwppdtplgns_options', $bstwbsftwppdtplgns_options );
+														} else {
+															update_option( 'bstwbsftwppdtplgns_options', $bstwbsftwppdtplgns_options );
+														}
+													}
 												}
 											}
-											if ( empty( $error ) ) {
-												$bws_license_plugin = ( ! empty( $single_license['pro_basename'] ) ) ? $single_license['pro_basename'] : $single_license['basename'];
-
-												$bstwbsftwppdtplgns_options[ $bws_license_plugin ] = $bws_license_key;
-												$this->pro_plugin_is_activated = true;
-											}
 										} else {
-											$error = __( "Something went wrong. Try again later or upload the plugin manually. We are sorry for inconvenience.", 'bestwebsoft' );
+											$error = __( 'Something went wrong. Please try again later. If the error appears again, please contact us', 'bestwebsoft' ) . ' <a href=https://support.bestwebsoft.com>BestWebSoft</a>. ' . __( 'We are sorry for inconvenience.', 'bestwebsoft' );
 										}
 									}
 								}
+								/* Go Pro */
 							} else {
-								$bstwbsftwppdtplgns_options[ $bws_license_plugin ] = $bws_license_key;
-								/* activate Pro */
-								if ( ! is_plugin_active( $bws_license_plugin ) ) {
-									if ( $this->is_multisite && is_plugin_active_for_network( ( ! empty( $single_license['pro_basename'] ) ) ? $single_license['pro_basename'] : $single_license['basename'] ) ) {
-										/* if multisite and free plugin is network activated */
-										$network_wide = true;
-									} else {
-										/* activate on a single blog */
-										$network_wide = false;
+								$slug = ! empty( $single_license['pro_slug'] ) ? 'bws_license_plugin_' . $single_license['pro_slug'] : 'bws_license_plugin_' . $single_license['slug'];
+								$bws_license_plugin = isset( $_POST[ $slug ] ) ? sanitize_text_field( wp_unslash( $_POST[ $slug ] ) ) : '';
+								if ( isset( $bstwbsftwppdtplgns_options['go_pro'][ $bws_license_plugin ]['count'] ) && $bstwbsftwppdtplgns_options['go_pro'][ $bws_license_plugin ]['time'] > ( time() - ( 24 * 60 * 60 ) ) ) {
+									$bstwbsftwppdtplgns_options['go_pro'][ $bws_license_plugin ]['count'] = $bstwbsftwppdtplgns_options['go_pro'][ $bws_license_plugin ]['count'] + 1;
+								} else {
+									$bstwbsftwppdtplgns_options['go_pro'][ $bws_license_plugin ]['count'] = 1;
+									$bstwbsftwppdtplgns_options['go_pro'][ $bws_license_plugin ]['time']  = time();
+								}
+
+								/* download Pro */
+								if ( ! $this->all_plugins ) {
+									if ( ! function_exists( 'get_plugins' ) ) {
+										require_once ABSPATH . 'wp-admin/includes/plugin.php';
 									}
-									activate_plugin( $bws_license_plugin, null, $network_wide );
-									$this->pro_plugin_is_activated = true;
+									$this->all_plugins = get_plugins();
+								}
+
+								if ( ! array_key_exists( $bws_license_plugin, $this->all_plugins ) ) {
+									$current = get_site_transient( 'update_plugins' );
+									if ( ! empty( $current ) && isset( $current->response ) && is_array( $current->response ) ) {
+										$to_send                                   = array();
+										$to_send['plugins'][ $bws_license_plugin ] = array();
+										$to_send['plugins'][ $bws_license_plugin ]['bws_license_key']    = $bws_license_key;
+										$to_send['plugins'][ $bws_license_plugin ]['bws_illegal_client'] = true;
+										$options      = array(
+											'timeout'    => ( ( defined( 'DOING_CRON' ) && DOING_CRON ) ? 30 : 3 ),
+											'body'       => array( 'plugins' => serialize( $to_send ) ),
+											'user-agent' => 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' ),
+										);
+										$raw_response = wp_remote_post( 'https://bestwebsoft.com/wp-content/plugins/paid-products/plugins/pro-license-check/1.0/', $options );
+
+										if ( is_wp_error( $raw_response ) || 200 !== intval( wp_remote_retrieve_response_code( $raw_response ) ) ) {
+											$error = __( 'Something went wrong. Please try again later. If the error appears again, please contact us', 'bestwebsoft' ) . ': <a href="https://support.bestwebsoft.com">BestWebSoft</a>. ' . __( 'We are sorry for inconvenience.', 'bestwebsoft' );
+										} else {
+											$response = maybe_unserialize( wp_remote_retrieve_body( $raw_response ) );
+											if ( is_array( $response ) && ! empty( $response ) ) {
+												foreach ( $response as $single_response ) {
+													if ( 'wrong_license_key' === $single_response->package ) {
+														$error = __( 'Wrong license key.', 'bestwebsoft' );
+													} elseif ( 'wrong_domain' === $single_response->package ) {
+														$error = __( 'This license key is bound to another site.', 'bestwebsoft' );
+													} elseif ( 'you_are_banned' === $single_response->package ) {
+														$error = __( 'Unfortunately, you have exceeded the number of available tries per day. Please, upload the plugin manually.', 'bestwebsoft' );
+													} elseif ( 'time_out' === $single_response->package ) {
+														$error = sprintf( __( 'Unfortunately, Your license has expired. To continue getting top-priority support and plugin updates, you should extend it in your %s.', 'bestwebsoft' ), ' <a href="https://bestwebsoft.com/client-area">Client Area</a>' );
+													} elseif ( 'duplicate_domen_for_trial' === $single_response->package ) {
+														$error = __( 'Unfortunately, the Pro licence was already installed to this domain. The Pro Trial license can be installed only once.', 'bestwebsoft' );
+													}
+												}
+												if ( empty( $error ) ) {
+													$bws_license_plugin = ( ! empty( $single_license['pro_basename'] ) ) ? $single_license['pro_basename'] : $single_license['basename'];
+
+													$bstwbsftwppdtplgns_options[ $bws_license_plugin ] = $bws_license_key;
+													$this->pro_plugin_is_activated                     = true;
+												}
+											} else {
+												$error = __( 'Something went wrong. Try again later or upload the plugin manually. We are sorry for inconvenience.', 'bestwebsoft' );
+											}
+										}
+									}
+								} else {
+									$bstwbsftwppdtplgns_options[ $bws_license_plugin ] = $bws_license_key;
+									/* activate Pro */
+									if ( ! is_plugin_active( $bws_license_plugin ) ) {
+										if ( $this->is_multisite && is_plugin_active_for_network( ( ! empty( $single_license['pro_basename'] ) ) ? $single_license['pro_basename'] : $single_license['basename'] ) ) {
+											/* if multisite and free plugin is network activated */
+											$network_wide = true;
+										} else {
+											/* activate on a single blog */
+											$network_wide = false;
+										}
+										activate_plugin( $bws_license_plugin, null, $network_wide );
+										$this->pro_plugin_is_activated = true;
+									}
+								}
+								/* add 'track_usage' for Pro version */
+								if ( ! empty( $bstwbsftwppdtplgns_options['track_usage'][ ( ! empty( $single_license['pro_basename'] ) ) ? $single_license['pro_basename'] : $single_license['basename'] ] ) &&
+									 empty( $bstwbsftwppdtplgns_options['track_usage'][ $bws_license_plugin ] ) ) {
+									$bstwbsftwppdtplgns_options['track_usage'][ $bws_license_plugin ] = $bstwbsftwppdtplgns_options['track_usage'][ ( ! empty( $single_license['pro_basename'] ) ) ? $single_license['pro_basename'] : $single_license['basename'] ];
+								}
+
+								if ( $this->is_multisite ) {
+									update_site_option( 'bstwbsftwppdtplgns_options', $bstwbsftwppdtplgns_options );
+								} else {
+									update_option( 'bstwbsftwppdtplgns_options', $bstwbsftwppdtplgns_options );
+								}
+
+								if ( $this->pro_plugin_is_activated ) {
+									delete_transient( 'bws_plugins_update' );
 								}
 							}
-							/* add 'track_usage' for Pro version */
-							if ( ! empty( $bstwbsftwppdtplgns_options['track_usage'][ ( ! empty( $single_license['pro_basename'] ) ) ? $single_license['pro_basename'] : $single_license['basename'] ] ) &&
-							     empty( $bstwbsftwppdtplgns_options['track_usage'][ $bws_license_plugin ] ) ) {
-								$bstwbsftwppdtplgns_options['track_usage'][ $bws_license_plugin ] = $bstwbsftwppdtplgns_options['track_usage'][ ( ! empty( $single_license['pro_basename'] ) ) ? $single_license['pro_basename'] : $single_license['basename'] ];
-							}
-
-							if ( $this->is_multisite ) {
-								update_site_option( 'bstwbsftwppdtplgns_options', $bstwbsftwppdtplgns_options );
-							} else {
-								update_option( 'bstwbsftwppdtplgns_options', $bstwbsftwppdtplgns_options );
-							}
-
-							if ( $this->pro_plugin_is_activated ) {
-								delete_transient( 'bws_plugins_update' );
-							}
 						}
+					} else {
+						$empty_field_error = __( 'Please, enter Your license key', 'bestwebsoft' );
 					}
-				} else {
-					$empty_field_error = __( "Please, enter Your license key", 'bestwebsoft' );
 				}
 			}
 			return compact( 'error', 'message', 'empty_field_error' );
@@ -1062,37 +1179,45 @@
 
 		/**
 		 * Display help phrase
+		 *
 		 * @access public
 		 * @param  void
-		 * @return array    The action results
+		 * @return html    The Action results
 		 */
 		public function help_phrase() {
-			echo '<div class="bws_tab_description">' . __( 'Need Help?', 'bestwebsoft' ) . ' ';
-			if ( '' != $this->doc_link )
-				echo '<a href="' . esc_url( $this->doc_link ) . '" target="_blank">' . __( 'Read the Instruction', 'bestwebsoft' );
-			else
-				echo '<a href="https://support.bestwebsoft.com/hc/en-us/" target="_blank">' . __( 'Visit Help Center', 'bestwebsoft' );
-			if ( '' != $this->doc_video_link )
-				echo '</a>' . ' ' . __( 'or', 'bestwebsoft' ) . ' ' . '<a href="' . esc_url( $this->doc_video_link ) . '" target="_blank">' . __( 'Watch the Video', 'bestwebsoft' );
+			/*pls */
+			echo '<div class="bws_tab_description">' . esc_html__( 'Need Help?', 'bestwebsoft' ) . ' ';
+			if ( '' !== $this->doc_link ) {
+				echo '<a href="' . esc_url( $this->doc_link ) . '" target="_blank">' . esc_html__( 'Read the Instruction', 'bestwebsoft' );
+			} else {
+				echo '<a href="https://support.bestwebsoft.com/hc/en-us/" target="_blank">' . esc_html__( 'Visit Help Center', 'bestwebsoft' );
+			}
+			if ( '' !== $this->doc_video_link ) {
+				echo '</a> ' . esc_html__( 'or', 'bestwebsoft' ) . ' <a href="' . esc_url( $this->doc_video_link ) . '" target="_blank">' . esc_html__( 'Watch the Video', 'bestwebsoft' );
+			}
 			echo '</a></div>';
+			/* pls*/
 		}
 
 		public function bws_pro_block_links() {
-			global $wp_version; ?>
-            <div class="bws_pro_version_tooltip">
-                <a class="bws_button" href="<?php echo esc_url( $this->plugins_info['PluginURI'] ); ?>?k=<?php echo $this->link_key; ?>&amp;pn=<?php echo $this->link_pn; ?>&amp;v=<?php echo $this->plugins_info["Version"]; ?>&amp;wp_v=<?php echo $wp_version; ?>" target="_blank" title="<?php echo $this->plugins_info["Name"]; ?>"><?php _e( 'Upgrade to Pro', 'bestwebsoft' ); ?></a>
-				<?php if ( $this->trial_days !== false ) { ?>
-                    <span class="bws_trial_info">
-						<?php _e( 'or', 'bestwebsoft' ); ?>
-                        <a href="<?php echo esc_url( $this->plugins_info['PluginURI'] . '?k=' . $this->link_key . '&pn=' . $this->link_pn . '&v=' . $this->plugins_info["Version"] . '&wp_v=' . $wp_version ); ?>" target="_blank" title="<?php echo $this->plugins_info["Name"]; ?>"><?php _e( 'Start Your Free Trial', 'bestwebsoft' ); ?></a>
+			global $wp_version;
+			?>
+			<div class="bws_pro_version_tooltip">
+				<a class="bws_button" href="<?php echo esc_url( $this->plugins_info['PluginURI'] ); ?>?k=<?php echo esc_attr( $this->link_key ); ?>&amp;pn=<?php echo esc_attr( $this->link_pn ); ?>&amp;v=<?php echo esc_attr( $this->plugins_info['Version'] ); ?>&amp;wp_v=<?php echo esc_attr( $wp_version ); ?>" target="_blank" title="<?php echo esc_html( $this->plugins_info['Name'] ); ?>"><?php esc_html_e( 'Upgrade to Pro', 'bestwebsoft' ); ?></a>
+				<?php if ( false !== $this->trial_days ) { ?>
+					<span class="bws_trial_info">
+						<?php esc_html_e( 'or', 'bestwebsoft' ); ?>
+						<a href="<?php echo esc_url( $this->plugins_info['PluginURI'] . '?k=' . $this->link_key . '&pn=' . $this->link_pn . '&v=' . $this->plugins_info['Version'] . '&wp_v=' . $wp_version ); ?>" target="_blank" title="<?php echo esc_html( $this->plugins_info['Name'] ); ?>"><?php esc_html_e( 'Start Your Free Trial', 'bestwebsoft' ); ?></a>
 					</span>
 				<?php } ?>
-                <div class="clear"></div>
-            </div>
-		<?php }
+				<div class="clear"></div>
+			</div>
+			<?php
+		}
 
 		/**
 		 * Restore plugin options to defaults
+		 *
 		 * @access public
 		 * @param  void
 		 * @return void
@@ -1108,13 +1233,220 @@
 			 */
 			$this->options = apply_filters( __CLASS__ . '_additional_restore_options', $this->default_options );
 			if ( $this->is_network_options ) {
-				$this->options['network_apply'] = 'default';
-				$this->options['network_view'] = '1';
+				$this->options['network_apply']  = 'default';
+				$this->options['network_view']   = '1';
 				$this->options['network_change'] = '1';
 				update_site_option( $this->prefix . '_options', $this->options );
 			} else {
 				update_option( $this->prefix . '_options', $this->options );
 			}
 		}
+
+		public function add_request_feature() {
+			?>
+			<div id="bws_request_feature" class="widget-access-link">
+				<button type="button" class="button" ><?php esc_html_e( 'Request a Feature', 'bestwebsoft' ); ?></button>
+			</div>
+			<?php
+			$modal_html = '<div class="bws-modal bws-modal-deactivation-feedback bws-modal-request-feature">
+				<div class="bws-modal-dialog">
+					<div class="bws-modal-body">
+						<h2>' . sprintf( esc_html__( 'How can we improve %s?', 'bestwebsoft' ), $this->plugins_info['Name'] ) . '</h2>
+						<div class="bws-modal-panel active">
+							<p>' . esc_html__( 'We look forward to hear your ideas.', 'bestwebsoft' ) . '</p>
+							<p>
+								<textarea placeholder="' . esc_html__( 'Describe your idea', 'bestwebsoft' ) . '..."></textarea>
+							</p>
+							<label class="bws-modal-anonymous-label">
+								<input type="checkbox" /> ' . esc_html__( 'Send website data and allow to contact me back', 'bestwebsoft' ) . '
+							</label>
+						</div>
+					</div>
+					<div class="bws-modal-footer">
+						<a href="#" class="button disabled bws-modal-button button-primary">' . esc_html__( 'Submit', 'bestwebsoft' ) . '</a>
+						<span class="bws-modal-processing hidden">' . esc_html__( 'Processing', 'bestwebsoft' ) . '...</span>
+						<span class="bws-modal-thank-you hidden">' . esc_html__( 'Thank you!', 'bestwebsoft' ) . '</span>
+						<div class="clear"></div>
+					</div>
+				</div>
+			</div>';
+
+			$script = '(function($) {
+				var modalHtml = ' . wp_json_encode( $modal_html ) . ",
+					\$modal = $( modalHtml );
+				
+				\$modal.appendTo( $( 'body' ) );
+
+				$( '#bws_request_feature .button' ).on( 'click', function() {
+					/* Display the dialog box.*/
+					\$modal.addClass( 'active' );
+					$( 'body' ).addClass( 'has-bws-modal' );				
+				});
+
+				\$modal.on( 'keypress', 'textarea', function( evt ) {
+					BwsModalEnableButton();
+				});
+
+				\$modal.on( 'click', '.bws-modal-footer .button', function( evt ) {
+					evt.preventDefault();
+
+					if ( $( this ).hasClass( 'disabled' ) ) {
+						return;
+					}
+					var info = \$modal.find( 'textarea' ).val();
+
+					if ( info.length == 0 ) {
+						return;
+					}
+
+					var _parent = $( this ).parents( '.bws-modal:first' ),
+						_this =  $( this );
+
+					var is_anonymous = ( \$modal.find( '.bws-modal-anonymous-label' ).find( 'input' ).is( ':checked' ) ) ? 0 : 1;
+
+					$.ajax({
+						url	   : ajaxurl,
+						method	: 'POST',
+						data	  : {
+							'Action'			: 'bws_submit_request_feature_action',
+							'plugin'			: '" . $this->plugin_basename . "',
+							'info'				: info,
+							'is_anonymous'		: is_anonymous,
+							'bws_ajax_nonce'	: '" . wp_create_nonce( 'bws_ajax_nonce' ) . "'
+						},
+						beforeSend: function() {
+							_parent.find( '.bws-modal-footer .bws-modal-button' ).hide();
+							_parent.find( '.bws-modal-footer .bws-modal-processing' ).show();
+							_parent.find( 'textarea, input' ).attr( 'disabled', 'disabled' );
+						},
+						complete  : function( message ) {
+							_parent.find( '.bws-modal-footer .bws-modal-processing' ).hide();
+							_parent.find( '.bws-modal-footer .bws-modal-thank-you' ).show();
+						}
+					});
+				});
+
+				/* If the user has clicked outside the window, cancel it. */
+				\$modal.on( 'click', function( evt ) {
+					var \$target = $( evt.target );
+
+					/* If the user has clicked anywhere in the modal dialog, just return. */
+					if ( \$target.hasClass( 'bws-modal-body' ) || \$target.hasClass( 'bws-modal-footer' ) ) {
+						return;
+					}
+
+					/* If the user has not clicked the close button and the clicked element is inside the modal dialog, just return. */
+					if ( ! \$target.hasClass( 'bws-modal-button-close' ) && ( \$target.parents( '.bws-modal-body' ).length > 0 || \$target.parents( '.bws-modal-footer' ).length > 0 ) ) {
+						return;
+					}
+
+					/* Close the modal dialog */
+					\$modal.removeClass( 'active' );
+					$( 'body' ).removeClass( 'has-bws-modal' );
+
+					return false;
+				});
+
+				function BwsModalEnableButton() {
+					\$modal.find( '.bws-modal-button' ).removeClass( 'disabled' ).show();
+					\$modal.find( '.bws-modal-processing' ).hide();
+				}
+
+				function BwsModalDisableButton() {
+					\$modal.find( '.bws-modal-button' ).addClass( 'disabled' );
+				}
+
+				function BwsModalShowPanel() {
+					\$modal.find( '.bws-modal-panel' ).addClass( 'active' );
+				}
+			})(jQuery);";
+
+			/* add script in FOOTER */
+			wp_register_script( 'bws-request-feature-dialog', '', array( 'jquery' ), '2.4.2', true );
+			wp_enqueue_script( 'bws-request-feature-dialog' );
+			wp_add_inline_script( 'bws-request-feature-dialog', sprintf( $script ) );
+		}
 	}
 }
+
+/**
+ * Called after the user has submitted his reason for deactivating the plugin.
+ *
+ * @since  2.1.3
+ */
+if ( ! function_exists( 'bws_submit_request_feature_action' ) ) {
+	function bws_submit_request_feature_action() {
+		global $bstwbsftwppdtplgns_options, $wp_version, $bstwbsftwppdtplgns_active_plugins, $current_user;
+
+		if ( isset( $_REQUEST['bws_ajax_nonce'] ) ) {
+
+			wp_verify_nonce( sanitize_text_field( wp_unslash( $_REQUEST['bws_ajax_nonce'] ) ), 'bws_ajax_nonce' );
+
+			$basename = isset( $_REQUEST['plugin'] ) ? sanitize_text_field( wp_unslash( $_REQUEST['plugin'] ) ) : '';
+			$info     = isset( $_REQUEST['info'] ) ? sanitize_text_field( wp_unslash( $_REQUEST['info'] ) ) : '';
+
+			if ( empty( $info ) || empty( $basename ) ) {
+				exit;
+			}
+
+			$info         = substr( $info, 0, 255 );
+			$is_anonymous = isset( $_REQUEST['is_anonymous'] ) && 1 === intval( $_REQUEST['is_anonymous'] );
+
+			$options = array(
+				'product' => $basename,
+				'info'    => $info,
+			);
+
+			if ( ! $is_anonymous ) {
+				if ( ! isset( $bstwbsftwppdtplgns_options ) ) {
+					$bstwbsftwppdtplgns_options = ( is_multisite() ) ? get_site_option( 'bstwbsftwppdtplgns_options' ) : get_option( 'bstwbsftwppdtplgns_options' );
+				}
+
+				if ( ! empty( $bstwbsftwppdtplgns_options['track_usage']['usage_id'] ) ) {
+					$options['usage_id'] = $bstwbsftwppdtplgns_options['track_usage']['usage_id'];
+				} else {
+					$options['usage_id']   = false;
+					$options['url']        = get_bloginfo( 'url' );
+					$options['wp_version'] = $wp_version;
+					$options['is_active']  = false;
+					$options['version']    = $bstwbsftwppdtplgns_active_plugins[ $basename ]['Version'];
+				}
+
+				$options['email'] = $current_user->data->user_email;
+			}
+
+			/* send data */
+			$raw_response = wp_remote_post(
+				'https://bestwebsoft.com/wp-content/plugins/products-statistics/request-feature/',
+				array(
+					'method'  => 'POST',
+					'body'    => $options,
+					'timeout' => 15,
+				)
+			);
+
+			if ( ! is_wp_error( $raw_response ) && 200 === intval( wp_remote_retrieve_response_code( $raw_response ) ) ) {
+				if ( ! $is_anonymous ) {
+					$response = maybe_unserialize( wp_remote_retrieve_body( $raw_response ) );
+
+					if ( is_array( $response ) && ! empty( $response['usage_id'] ) && $response['usage_id'] !== $options['usage_id'] ) {
+						$bstwbsftwppdtplgns_options['track_usage']['usage_id'] = $response['usage_id'];
+
+						if ( is_multisite() ) {
+							update_site_option( 'bstwbsftwppdtplgns_options', $bstwbsftwppdtplgns_options );
+						} else {
+							update_option( 'bstwbsftwppdtplgns_options', $bstwbsftwppdtplgns_options );
+						}
+					}
+				}
+
+				echo 'done';
+			} else {
+				echo wp_kses_data( $response->get_error_code() ) . ': ' . wp_kses_data( $response->get_error_message() );
+			}
+		}
+		exit;
+	}
+}
+
+add_action( 'wp_ajax_bws_submit_request_feature_action', 'bws_submit_request_feature_action' );