wp/wp-content/plugins/portfolio/bws_menu/class-bws-settings.php
changeset 7 cf61fcea0001
child 12 d8a8807227e4
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-content/plugins/portfolio/bws_menu/class-bws-settings.php	Mon Oct 14 17:39:30 2019 +0200
@@ -0,0 +1,1104 @@
+<?php
+/**
+ * Displays the content on the plugin settings page
+ * @package BestWebSoft
+ * @since 1.9.8
+ */
+
+if ( ! class_exists( 'Bws_Settings_Tabs' ) ) {
+	class Bws_Settings_Tabs {
+		private $tabs;
+		private $pro_plugin_is_activated = false;
+		private $custom_code_args = array();
+
+		public $plugin_basename;
+		public $prefix;
+		public $wp_slug;
+				
+		public $options;
+		public $default_options;
+		public $is_network_options;	
+		public $plugins_info  = array();
+		public $hide_pro_tabs = false;
+		public $demo_data;
+
+		public $is_pro = false;
+		public $pro_page;
+		public $bws_license_plugin;
+		public $link_key;
+		public $link_pn;
+		public $is_trial = false;
+		public $trial_days;
+		public $bws_hide_pro_option_exist = true;	
+
+		public $forbid_view = false;
+		public $change_permission_attr = '';
+
+		public $version;
+		public $upload_dir;
+		public $all_plugins;
+		public $is_multisite;
+
+		public $doc_link;
+		public $doc_video_link;
+
+		/**
+		 * Constructor.
+		 *
+		 * The child class should call this constructor from its own constructor to override
+		 * the default $args.
+		 * @access public
+		 * 
+		 * @param array|string $args
+		 */
+		public function __construct( $args = 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 */
+				'pro_page'			=> '',
+				'bws_license_plugin'=> '',
+				'link_key'			=> '',
+				'link_pn'			=> '',
+				'trial_days'		=> false
+			) );
+
+			$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->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->pro_page  			= $args['pro_page'];
+			$this->bws_license_plugin  	= $args['bws_license_plugin'];
+			$this->link_key  			= $args['link_key'];
+			$this->link_pn  			= $args['link_pn'];
+			$this->trial_days  			= $args['trial_days'];
+
+			$this->hide_pro_tabs   		= bws_hide_premium_options_check( $this->options );
+			$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;
+		}
+
+		/**
+		 * Displays the content of the "Settings" on the plugin settings page
+		 * @access public
+		 * @param  void
+		 * @return void
+		 */
+		public function display_content() {
+			global $bstwbsftwppdtplgns_options;
+			if ( array_key_exists( 'custom_code', $this->tabs ) ) {
+				/* get args for `custom code` tab */
+				$this->get_custom_code();
+			}
+
+			$save_results = $this->save_all_tabs_options();
+
+			$this->display_messages( $save_results );
+			if ( isset( $_REQUEST['bws_restore_default'] ) && check_admin_referer( $this->plugin_basename, 'bws_nonce_name' ) ) {
+				bws_form_restore_default_confirm( $this->plugin_basename );
+			} elseif ( isset( $_POST['bws_handle_demo'] ) && check_admin_referer( $this->plugin_basename, 'bws_nonce_name' ) ) {
+				$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;">
+								<?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 ) {
+															if ( ! isset( $bstwbsftwppdtplgns_options['time_out'][ $this->plugin_basename ] ) || isset( $bstwbsftwppdtplgns_options['wrong_license_key'][ $this->plugin_basename ] ) ) {
+																$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" ) );
+																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 ) );
+																		$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>';							 		
+																} else {
+																	$license_type = isset( $bstwbsftwppdtplgns_options['nonprofit'][ $this->plugin_basename ] ) ? 'Nonprofit Pro' : 'Pro';
+																	if ( $finish < $today ) {
+																		$license_status = sprintf( __( 'Expired on %s', 'bestwebsoft' ), $bstwbsftwppdtplgns_options['time_out'][ $this->plugin_basename ] ) . '. <a target="_blank" href="https://support.bestwebsoft.com/entries/53487136">' . __( 'Renew Now', 'bestwebsoft' ) . '</a>';
+																	} else {
+																		$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 -->
+														<?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' ); ?>" />
+														<?php wp_nonce_field( $this->plugin_basename, 'bws_nonce_name' ); ?>					
+													</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_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 }
+		}
+
+		/**
+		 * Displays the Tabs
+		 * @access public
+		 * @param  void
+		 * @return void
+		 */
+		public function display_tabs() { 
+			global $wp_version; ?>
+			<div id="bws_settings_tabs_wrapper"<?php if ( version_compare( $wp_version, '4.0', '<' ) ) echo ' class="edit-form-section"'; ?>>
+				<ul id="bws_settings_tabs">
+					<?php $this->display_tabs_list(); ?>
+				</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 }
+
+		/**
+		 * 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 )
+					continue;
+				$tab_class = 'bws-tab-' . $tab_slug;
+				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 }
+		}
+
+		/**
+		 * 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 ( 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 }
+		}
+
+		/**
+		 * Save all options from all tabs and display errors\messages
+		 * @access public
+		 * @param  void
+		 * @return void
+		 */
+		public function save_all_tabs_options() {
+			$message = $notice = $error = '';
+			/* Restore default settings */
+			if ( isset( $_POST['bws_restore_confirm'] ) && check_admin_referer( $this->plugin_basename, 'bws_settings_nonce_name' ) ) {
+				$this->restore_options();
+				$message = __( 'All plugin settings were restored.', 'bestwebsoft' );
+			/* 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['error'] ) )
+					$error = $result['error'];
+				if ( ! empty( $result['message'] ) )
+					$message = $result['message'];
+				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;
+				if ( false !== $demo_result ) {
+					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'] ) )
+							$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' ) ) {
+					/* save tabs */				
+					$result = $this->save_options();
+					if ( ! empty( $result['error'] ) )
+						$error = $result['error'];
+					if ( ! empty( $result['message'] ) )
+						$message = $result['message'];
+					if ( ! empty( $result['notice'] ) )
+						$notice = $result['notice'];
+
+					if ( '' == $this->change_permission_attr ) {
+						/* save `misc` tab */
+						$result = $this->save_options_misc();
+						if ( ! empty( $result['notice'] ) )
+							$notice .= $result['notice'];
+					}
+
+					if ( array_key_exists( 'custom_code', $this->tabs ) ) {
+						/* save `custom code` tab */
+						$this->save_options_custom_code();
+					}
+				}
+			}
+
+			return compact( 'message', 'notice', 'error' );
+		}
+
+		/**
+		 * 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
+			 */
+			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 }
+
+		/**
+		 * Save plugin options to the database
+		 * @access public
+		 * @param  ab
+		 * @return array    The action results
+		 * @abstract
+		 */
+		public function save_options() {
+			die( 'function Bws_Settings_Tabs::save_options() must be over-ridden in a sub-class.' );
+		}
+
+		/**
+		 * Get 'custom_code' status and content
+		 * @access private
+		 */
+		private function get_custom_code() {
+			global $bstwbsftwppdtplgns_options;
+
+			$this->custom_code_args = array(
+				'is_css_active' => false,
+				'content_css'  	=> '',
+				'css_writeable'	=> false,
+				'is_php_active' => false,
+				'content_php' 	=> '',
+				'php_writeable'	=> false,
+				'is_js_active' 	=> false,
+				'content_js' 	=> '',
+				'js_writeable'	=> false,
+			);
+
+			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();
+
+			foreach ( array( 'css', 'php', 'js' ) as $extension ) {
+				$file = 'bws-custom-code.' . $extension;
+				$real_file = $folder . '/' . $file;
+						
+				if ( file_exists( $real_file ) ) {
+					update_recently_edited( $real_file );
+					$this->custom_code_args["content_{$extension}"] = 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;
+					}
+					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";
+				}
+			}
+		}
+
+		/**
+		 * Display 'custom_code' tab
+		 * @access private
+		 */
+		private function tab_custom_code() { ?>
+			<h3 class="bws_tab_label"><?php _e( 'Custom Code', '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'	=> 'http://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' 
+						), 
+			);
+
+			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 }
+
+			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 }
+		}
+
+		/**
+		 * 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, 'strip' );
+
+					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() {
+			global $bstwbsftwppdtplgns_options, $wp_version;
+			/* hide premium options */
+			if ( ! empty( $this->pro_page ) ) {
+				if ( isset( $_POST['bws_hide_premium_options'] ) ) {
+					$hide_result = bws_hide_premium_options( $this->options );
+					$this->hide_pro_tabs = true;
+					$this->options = $hide_result['options'];
+					if ( ! empty( $hide_result['message'] ) )
+						$notice = $hide_result['message'];
+					if ( $this->is_network_options )
+						update_site_option( $this->prefix . '_options', $this->options );
+					else
+						update_option( $this->prefix . '_options', $this->options );
+				} else if ( isset( $_POST['bws_hide_premium_options_submit'] ) ) {
+					if ( ! empty( $this->options['hide_premium_options'] ) ) {
+						$key = array_search( get_current_user_id(), $this->options['hide_premium_options'] );
+						if ( false !== $key )
+							unset( $this->options['hide_premium_options'][ $key ] );
+						if ( $this->is_network_options )
+							update_site_option( $this->prefix . '_options', $this->options );
+						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 )
+							update_site_option( $this->prefix . '_options', $this->options );
+						else
+							update_option( $this->prefix . '_options', $this->options );
+					}
+					$this->hide_pro_tabs = true;
+				}
+			}
+			/* Save 'Track Usage' option */
+			if ( isset( $_POST['bws_track_usage'] ) ) {
+				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;
+					$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,
+					),
+					'user-agent' => 'WordPress/' . $wp_version . '; ' . get_bloginfo( 'url' )
+				);
+				$raw_response = wp_remote_post( 'http://bestwebsoft.com/wp-content/plugins/products-statistics/track-usage/', $options );
+
+				if ( ! is_wp_error( $raw_response ) && 200 == 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 ) {
+						$bstwbsftwppdtplgns_options['track_usage']['usage_id'] = $response['usage_id'];
+					}
+				}
+
+				if ( $this->is_multisite )
+					update_site_option( 'bstwbsftwppdtplgns_options', $bstwbsftwppdtplgns_options );
+				else
+					update_option( 'bstwbsftwppdtplgns_options', $bstwbsftwppdtplgns_options );
+			}
+
+			return compact( 'notice' );
+		}				
+
+		/**
+		 *
+		 */
+		public function tab_license() {
+			global $wp_version, $bstwbsftwppdtplgns_options; ?>
+			<h3 class="bws_tab_label"><?php _e( 'License Key', 'bestwebsoft' ); ?></h3>
+			<?php $this->help_phrase(); ?>
+			<hr>
+			<?php if ( ! empty( $this->pro_page ) ) {
+				$bws_license_key = ( isset( $_POST['bws_license_key'] ) ) ? stripslashes( sanitize_text_field( $_POST['bws_license_key'] ) ) : "";
+
+				if ( $this->pro_plugin_is_activated ) { 
+					deactivate_plugins( $this->plugin_basename ); ?>
+					<script type="text/javascript">
+						(function($) {
+							var i = 7;
+							function bws_set_timeout() {
+								i--;
+								if ( 0 == i ) {
+									window.location.href = '<?php echo esc_url( self_admin_url( $this->pro_page ) ); ?>';
+								} else {
+									$( '#bws_timeout_counter' ).text( i );
+									window.setTimeout( bws_set_timeout, 1000 );
+								}
+							}
+							window.setTimeout( bws_set_timeout, 1000 );
+						})(jQuery);
+					</script>
+					<p><strong><?php _e( 'Congratulations! Pro license is activated successfully.', 'bestwebsoft' ); ?></strong></p>
+					<p><?php printf( __( 'You will be automatically redirected to the %s in %s seconds.', 'bestwebsoft' ), '<a href="' . esc_url( self_admin_url( $this->pro_page ) ) . '">' . __( 'Settings page', 'bestwebsoft' ) . '</a>', '<span id="bws_timeout_counter">7</span>' ); ?></p>
+				<?php } else { 			
+					$attr = '';
+					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 ) ) )
+						$attr = 'disabled="disabled"'; ?>		
+					<table class="form-table">			
+						<tr>
+							<th scope="row"><?php _e( 'License Key', 'bestwebsoft' ); ?></th>
+							<td>
+								<input <?php echo $attr; ?> type="text" name="bws_license_key" value="<?php echo esc_attr( $bws_license_key ); ?>" />
+								<input <?php echo $attr; ?> type="hidden" name="bws_license_plugin" value="<?php echo esc_attr( $this->bws_license_plugin ); ?>" />
+								<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="' . 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">' . $this->plugins_info["Name"] . ' Pro</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 }
+			} else {
+				global $bstwbsftwppdtplgns_options;
+				$license_key = ( isset( $bstwbsftwppdtplgns_options[ $this->plugin_basename ] ) ) ? $bstwbsftwppdtplgns_options[ $this->plugin_basename ] : ''; ?>
+				<table class="form-table">			
+					<tr>
+						<th scope="row"><?php _e( 'License Key', 'bestwebsoft' ); ?></th>
+						<td>
+							<input type="text" maxlength="100" name="bws_license_key" 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>
+					<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 }
+		}
+
+		/**
+		 * Save plugin options to the database
+		 * @access private
+		 * @param  ab
+		 * @return array    The action results
+		 */
+		private function save_options_license_key() {
+			global $wp_version, $bstwbsftwppdtplgns_options;
+
+			$bws_license_key = ( isset( $_POST['bws_license_key'] ) ) ? stripslashes( sanitize_text_field( $_POST['bws_license_key'] ) ) : '';
+			
+			if ( '' != $bws_license_key ) {
+				if ( strlen( $bws_license_key ) != 18 ) {
+					$error = __( 'Wrong license key', 'bestwebsoft' );
+				} else {
+
+					/* CHECK license key */
+					if ( $this->is_pro ) {
+						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"][ $this->plugin_basename ] = $this->all_plugins[ $this->plugin_basename ];
+							$to_send["plugins"][ $this->plugin_basename ]["bws_license_key"] = $bws_license_key;
+							$to_send["plugins"][ $this->plugin_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( 'http://bestwebsoft.com/wp-content/plugins/paid-products/plugins/update-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' );
+
+												if ( ! empty( $single_response->time_out ) )
+													$message .= ' ' . __( 'Your license will expire on', 'bestwebsoft' ) . ' ' . $single_response->time_out . '.';
+
+												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'][ $this->plugin_basename ] = 1;
+											} else {
+												unset( $bstwbsftwppdtplgns_options['trial'][ $this->plugin_basename ] );
+											}
+
+											if ( isset( $single_response->nonprofit ) ) {
+												$bstwbsftwppdtplgns_options['nonprofit'][ $this->plugin_basename ] = 1;
+											} else {
+												unset( $bstwbsftwppdtplgns_options['nonprofit'][ $this->plugin_basename ] );
+											}
+									
+											if ( ! isset( $bstwbsftwppdtplgns_options[ $this->plugin_basename ] ) || $bstwbsftwppdtplgns_options[ $this->plugin_basename ] != $bws_license_key ) {
+												$bstwbsftwppdtplgns_options[ $this->plugin_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['time_out'][ $this->plugin_basename ] ) || $bstwbsftwppdtplgns_options['time_out'][ $this->plugin_basename ] != $single_response->time_out ) {
+												$bstwbsftwppdtplgns_options['time_out'][ $this->plugin_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 );
+											}
+										}
+									}
+								} 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['bws_license_plugin'] ) );
+						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(
+									'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( 'http://bestwebsoft.com/wp-content/plugins/paid-products/plugins/update-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' );
+											} 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 ) ) {
+											$bstwbsftwppdtplgns_options[ $bws_license_plugin ] = $bws_license_key;
+
+											$url = 'http://bestwebsoft.com/wp-content/plugins/paid-products/plugins/downloads/?bws_first_download=' . $bws_license_plugin . '&bws_license_key=' . $bws_license_key . '&download_from=5';
+											
+											if ( ! $this->upload_dir )
+												$this->upload_dir = wp_upload_dir();
+
+											$zip_name = explode( '/', $bws_license_plugin );
+
+											if ( !function_exists( 'curl_init' ) ) {
+												$received_content = file_get_contents( $url );
+											} else {
+												$ch = curl_init();
+												curl_setopt( $ch, CURLOPT_URL, $url );
+												curl_setopt( $ch, CURLOPT_RETURNTRANSFER, true );
+												$received_content = curl_exec( $ch );
+												curl_close( $ch );
+											}
+
+											if ( ! $received_content ) {
+												$error = __( "Failed to download the zip archive. Please, upload the plugin manually.", 'bestwebsoft' );
+											} else {
+												if ( is_writable( $this->upload_dir["path"] ) ) {
+													$file_put_contents = $this->upload_dir["path"] . "/" . $zip_name[0] . ".zip";
+													if ( file_put_contents( $file_put_contents, $received_content ) ) {
+														@chmod( $file_put_contents, octdec( 755 ) );
+														if ( class_exists( 'ZipArchive' ) ) {
+															$zip = new ZipArchive();
+															if ( $zip->open( $file_put_contents ) === TRUE ) {
+																$zip->extractTo( WP_PLUGIN_DIR );
+																$zip->close();
+															} else {
+																$error = __( "Failed to open the zip archive. Please, upload the plugin manually.", 'bestwebsoft' );
+															}
+														} elseif ( class_exists( 'Phar' ) ) {
+															$phar = new PharData( $file_put_contents );
+															$phar->extractTo( WP_PLUGIN_DIR );
+														} else {
+															$error = __( "Your server does not support either ZipArchive or Phar. Please, upload the plugin manually.", 'bestwebsoft' );
+														}
+														@unlink( $file_put_contents );
+													} else {
+														$error = __( "Failed to download the zip archive. Please, upload the plugin manually.", 'bestwebsoft' );
+													}
+												} else {
+													$error = __( "UploadDir is not writable. Please, upload the plugin manually.", 'bestwebsoft' );
+												}
+											}
+
+											/* activate Pro */
+											if ( file_exists( WP_PLUGIN_DIR . '/' . $zip_name[0] ) ) {
+												if ( $this->is_multisite && is_plugin_active_for_network( $this->plugin_basename ) ) {
+													/* if multisite and free plugin is network activated */
+													$active_plugins = get_site_option( 'active_sitewide_plugins' );
+													$active_plugins[ $bws_license_plugin ] = time();
+													update_site_option( 'active_sitewide_plugins', $active_plugins );
+												} else {
+													/* activate on a single blog */
+													$active_plugins = get_option( 'active_plugins' );
+													array_push( $active_plugins, $bws_license_plugin );
+													update_option( 'active_plugins', $active_plugins );
+												}
+												$this->pro_plugin_is_activated = true;
+											} elseif ( empty( $error ) ) {
+												$error = __( "Failed to download the zip archive. Please, upload the plugin manually.", 'bestwebsoft' );
+											}
+										}
+									} 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( $this->plugin_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'][ $this->plugin_basename ] ) &&
+							empty( $bstwbsftwppdtplgns_options['track_usage'][ $bws_license_plugin ] ) ) {
+							$bstwbsftwppdtplgns_options['track_usage'][ $bws_license_plugin ] = $bstwbsftwppdtplgns_options['track_usage'][ $this->plugin_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 {
+				$error = __( "Please, enter Your license key", 'bestwebsoft' );
+			}
+			return compact( 'error', 'message' );
+		}
+
+		/**
+		 * Display help phrase
+		 * @access public
+		 * @param  void
+		 * @return array    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' );
+			echo '</a></div>';
+		}
+
+		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>
+					</span>
+				<?php } ?>
+				<div class="clear"></div>
+			</div>
+		<?php }
+
+		/**
+		 * Restore plugin options to defaults
+		 * @access public
+		 * @param  void
+		 * @return void
+		 */
+		public function restore_options() {
+			unset(
+				$this->default_options['first_install'],
+				$this->default_options['suggest_feature_banner'],
+				$this->default_options['display_settings_notice']
+			);
+			/**
+			 * filter - Change default_options array OR process custom functions
+			 */
+			$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_change'] = '1';
+				update_site_option( $this->prefix . '_options', $this->options );
+			} else {
+				update_option( $this->prefix . '_options', $this->options );
+			}
+		}
+	}
+}
\ No newline at end of file