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wp-content/plugins/!clearfy/includes/classes/class.configurate-seo.php

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+<?php
+
+/**
+ * This class configures the parameters seo
+ *
+ * @author        Webcraftic <wordpress.webraftic@gmail.com>
+ * @copyright (c) 2017 Webraftic Ltd
+ * @version       1.0
+ */
+
+// Exit if accessed directly
+if ( ! defined( 'ABSPATH' ) ) {
+	exit;
+}
+
+class WCL_ConfigSeo extends WBCR\Factory_Templates_134\Configurate {
+
+	/**
+	 * @param WCL_Plugin $plugin
+	 */
+	public function __construct( WCL_Plugin $plugin ) {
+		parent::__construct( $plugin );
+
+		$this->plugin = $plugin;
+	}
+
+	public function registerActionsAndFilters() {
+		if ( ! is_admin() ) {
+			if ( $this->getPopulateOption( 'content_image_auto_alt' ) ) {
+				add_filter( 'the_content', [ $this, 'images_alt_autocomplete' ], 9999 );
+				add_filter( 'wp_get_attachment_image_attributes', [
+					$this,
+					'change_attachement_image_attributes'
+				], 20, 2 );
+			}
+
+			if ( $this->getPopulateOption( 'right_robots_txt' ) ) {
+				add_filter( 'robots_txt', [ $this, 'rightRobotsTxt' ], 9999 );
+			}
+
+			if ( $this->getPopulateOption( 'remove_last_item_breadcrumb_yoast' ) ) {
+				add_filter( 'wpseo_breadcrumb_single_link', [ $this, 'remove_yoast_breadcrumb_last' ] );
+			}
+
+			if ( $this->getPopulateOption( 'attachment_pages_redirect' ) ) {
+				add_action( 'template_redirect', [ $this, 'attachmentPagesRedirect' ] );
+			}
+
+			if ( $this->getPopulateOption( 'remove_single_pagination_duplicate' ) ) {
+				add_action( 'template_redirect', [ $this, 'removeSinglePaginationDuplicate' ] );
+			}
+
+			if ( $this->getPopulateOption( 'remove_replytocom' ) ) {
+				add_action( 'template_redirect', [ $this, 'removeReplytocomRedirect' ], 1 );
+				add_filter( 'comment_reply_link', [ $this, 'removeReplytocomLink' ] );
+			}
+
+			add_action( 'wp', [ $this, 'redirectArchives' ] );
+		}
+
+		if ( $this->getPopulateOption( 'set_last_modified_headers' ) ) {
+			if ( ! is_admin() ) {
+				add_action( 'template_redirect', [ $this, 'setLastModifiedHeaders' ] );
+			}
+			add_action( 'wp_logout', [ $this, 'lastModifedFlushCookie' ] );
+		}
+
+		if ( $this->plugin->isActivateComponent( 'yoast_seo' ) && defined( 'WPSEO_VERSION' ) ) {
+			if ( ! is_admin() ) {
+				if ( $this->getPopulateOption( 'yoast_remove_json_ld_search' ) ) {
+					add_filter( 'disable_wpseo_json_ld_search', '__return_true' );
+				}
+
+				if ( $this->getPopulateOption( 'yoast_remove_json_ld_output' ) ) {
+					add_filter( 'wpseo_json_ld_output', [ $this, 'removeYoastJson' ], 10, 1 );
+				}
+				if ( $this->getPopulateOption( 'yoast_remove_head_comment' ) ) {
+					add_action( 'init', [ $this, 'yoastRemoveHeadComment' ] );
+				}
+				/*if( $this->getPopulateOption('yoast_canonical_pagination') ) {
+					add_filter('wpseo_canonical', array($this, 'yoastCanonicalPagination'));
+				}*/
+			}
+			if ( $this->getPopulateOption( 'yoast_remove_image_from_xml_sitemap' ) ) {
+				$this->yoastRemoveImageFromXmlSitemap();
+			}
+		}
+	}
+
+	/**
+	 * @param $data
+	 *
+	 * @return array
+	 */
+	public function removeYoastJson( $data ) {
+		$data = [];
+
+		return $data;
+	}
+
+	/**
+	 * Add post title in image alt attribute
+	 *
+	 * @param $content
+	 *
+	 * @return mixed
+	 */
+
+	public function images_alt_autocomplete( $content ) {
+		global $post;
+
+		if ( empty( $post ) ) {
+			return $content;
+		}
+
+		$old_content = $content;
+
+		preg_match_all( '/<img[^>]+>/', $content, $images );
+
+		if ( ! is_null( $images ) ) {
+			foreach ( $images[0] as $index => $value ) {
+				if ( ! preg_match( '/alt=/', $value ) ) {
+					$new_img = str_replace( '<img', '<img alt="' . esc_attr( $post->post_title ) . '"', $images[0][ $index ] );
+					$content = str_replace( $images[0][ $index ], $new_img, $content );
+				} else if ( preg_match( '/alt=["\']\s?["\']/', $value ) ) {
+					$new_img = preg_replace( '/alt=["\']\s?["\']/', 'alt="' . esc_attr( $post->post_title ) . '"', $images[0][ $index ] );
+					$content = str_replace( $images[0][ $index ], $new_img, $content );
+				}
+			}
+		}
+
+		if ( empty( $content ) ) {
+			return $old_content;
+		}
+
+		return $content;
+	}
+
+
+	/**
+	 * Setting attributes for post thumnails
+	 *
+	 * @param $attr
+	 * @param $attachment
+	 *
+	 * @return mixed
+	 */
+	public function change_attachement_image_attributes( $attr, $attachment ) {
+		// Get post parent
+		$parent = get_post_field( 'post_parent', $attachment );
+
+		// Get post type to check if it's product
+		//$type = get_post_field('post_type', $parent);
+
+		/*if( $type != 'product' ) {
+			return $attr;
+		}*/
+
+		/// Get title
+		$title = get_post_field( 'post_title', $parent );
+		if ( '' === $attr['alt'] ) {
+			$attr['alt'] = $title;
+		}
+		$attr['title'] = $title;
+
+		return $attr;
+	}
+
+	/**
+	 * Add directories to virtual robots.txt file
+	 *
+	 * @param string $output
+	 *
+	 * @return mixed|string|void
+	 */
+	public function rightRobotsTxt( $output ) {
+		if ( $this->getPopulateOption( 'robots_txt_text' ) ) {
+			return $this->getPopulateOption( 'robots_txt_text' );
+		}
+
+		return WCL_Helper::getRightRobotTxt();
+	}
+
+	/**
+	 * Attachment pages redirect
+	 */
+	public function attachmentPagesRedirect() {
+		global $post;
+
+		if ( is_attachment() ) {
+			if ( isset( $post->post_parent ) && ( $post->post_parent != 0 ) ) {
+				wp_redirect( get_permalink( $post->post_parent ), 301 );
+			} else {
+				wp_redirect( home_url(), 301 );
+			}
+			exit;
+		}
+	}
+
+	/**
+	 * Remove single pagination duplicate
+	 */
+
+	public function removeSinglePaginationDuplicate() {
+		global $post, $page;
+
+		if ( is_singular() && ! is_front_page() ) {
+
+			// #CLRF-125 issue fix bug for buddy press
+			if ( function_exists( 'bp_is_my_profile' ) ) {
+				if ( bp_is_my_profile() ) {
+					return;
+				}
+			}
+
+			// if woocommerce just return
+			if ( class_exists( 'woocommerce' ) && function_exists( 'is_cart' ) && function_exists( 'is_checkout' ) && function_exists( 'is_woocommerce' ) && function_exists( 'is_account_page' ) && ( is_cart() || is_checkout() || is_woocommerce() || is_account_page() ) ) {
+				return;
+			}
+
+			$num_pages = substr_count( $post->post_content, '<!--nextpage-->' ) + 1;
+
+			if ( $page > $num_pages ) {
+				wp_safe_redirect( get_permalink( $post->ID ), 301 );
+				exit();
+			}
+		}
+	}
+
+
+	/**
+	 * Remove last item from breadcrumbs SEO by YOAST
+	 *
+	 * @author Alexander Kovalev <alex.kovalevv@gmail.com>
+	 * @since  1.5.4
+	 *
+	 * @param string $link_output   Html string example: <span><a href="http://clearfy.loc/" >Home</a>
+	 *
+	 * @return string
+	 */
+	public function remove_yoast_breadcrumb_last( $link_output ) {
+		if ( strpos( $link_output, 'breadcrumb_last' ) !== false ) {
+			return "";
+		}
+
+		return $link_output;
+	}
+
+	/**
+	 * Remove yoast comment
+	 */
+	public function yoastRemoveHeadComment() {
+		add_action( 'get_header', [ $this, 'yoastRemoveHeadCommentStart' ] );
+		add_action( 'wp_head', [ $this, 'yoastRemoveHeadCommentEnd' ], 999 );
+	}
+
+	public function yoastRemoveHeadCommentStart() {
+		ob_start( [ $this, 'yoastRemoveHeadCommentRemove' ] );
+	}
+
+	public function yoastRemoveHeadCommentEnd() {
+		ob_end_flush();
+	}
+
+	public function yoastRemoveHeadCommentRemove( $html ) {
+		return preg_replace( '/^<!--.*?[Yy]oast.*?-->$/mi', '', $html );
+	}
+
+
+	/**
+	 * Remove <image:image> from sitemap
+	 */
+	public function yoastRemoveImageFromXmlSitemap() {
+		add_filter( 'wpseo_xml_sitemap_img', '__return_false' );
+		add_filter( 'wpseo_sitemap_url', [ $this, 'yoastRemoveImageFromXmlClean' ], 10, 2 );
+	}
+
+	public function yoastRemoveImageFromXmlClean( $output, $url ) {
+		$output = preg_replace( '/<image:image[^>]*?>.*?<\/image:image>/si', '', $output );
+
+		return $output;
+	}
+
+	/**
+	 * Canonical link in pagination Yoast
+	 *
+	 * @param $canonical
+	 *
+	 * @return string
+	 */
+	/*public function yoastCanonicalPagination( $canonical ) {
+		if ( is_category() && is_paged() ) {
+			$cat = get_category( get_query_var( 'cat' ) );
+			$cat_id = $cat->cat_ID;
+			return get_category_link( $cat_id );
+		}
+		if ( is_home() && is_paged() ) {
+			return home_url('/');
+		}
+		return $canonical;
+	}*/
+
+	/**
+	 * Redirect archives author, date, tags
+	 */
+
+	public function redirectArchives() {
+		if ( $this->getPopulateOption( 'redirect_archives_author' ) ) {
+			if ( is_author() ) {
+				wp_redirect( home_url(), 301 );
+
+				die();
+			}
+		}
+
+		if ( $this->getPopulateOption( 'redirect_archives_date' ) ) {
+			if ( is_date() ) {
+				wp_redirect( home_url(), 301 );
+
+				die();
+			}
+		}
+
+		if ( $this->getPopulateOption( 'redirect_archives_tag' ) ) {
+			if ( is_tag() ) {
+				wp_redirect( home_url(), 301 );
+
+				die();
+			}
+		}
+	}
+
+	/**
+	 * Remove replytocom
+	 */
+	public function removeReplytocomRedirect() {
+		global $post;
+
+		if ( ! empty( $post ) && isset( $_GET['replytocom'] ) && is_singular() ) {
+			$post_url     = get_permalink( $post->ID );
+			$comment_id   = sanitize_text_field( $_GET['replytocom'] );
+			$query_string = remove_query_arg( 'replytocom', sanitize_text_field( $_SERVER['QUERY_STRING'] ) );
+
+			if ( ! empty( $query_string ) ) {
+				$post_url .= '?' . $query_string;
+			}
+			$post_url .= '#comment-' . $comment_id;
+
+			wp_safe_redirect( esc_url_raw($post_url), 301 );
+			die();
+		}
+
+		return false;
+	}
+
+	public function removeReplytocomLink( $link ) {
+		return preg_replace( '`href=(["\'])(?:.*(?:\?|&|&#038;)replytocom=(\d+)#respond)`', 'href=$1#comment-$2', $link );
+	}
+
+	public function setLastModifiedHeaders() {
+		if ( is_user_logged_in() && ( defined( 'DOING_AJAX' ) && DOING_AJAX ) || ( defined( 'XMLRPC_REQUEST' ) && XMLRPC_REQUEST ) || ( defined( 'REST_REQUEST' ) && REST_REQUEST ) ) {
+			return;
+		}
+
+		if ( class_exists( 'woocommerce' ) && function_exists( 'is_cart' ) && function_exists( 'is_checkout' ) && function_exists( 'is_account_page' ) && ( is_cart() || is_checkout() || is_account_page() ) ) {
+			return;
+		}
+
+		if ( is_front_page() ) {
+			$last_modified_exclude_frontpage = $this->getPopulateOption( 'disable_frontpage_last_modified_headers' );
+			if ( $last_modified_exclude_frontpage ) {
+				return;
+			}
+		}
+
+		$last_modified_flush = isset( $_COOKIE['wbcr_lastmodifed_flush'] );
+
+		global $wp;
+		$last_modified_exclude     = $this->getPopulateOption( 'last_modified_exclude' );
+		$last_modified_exclude_exp = explode( PHP_EOL, $last_modified_exclude );
+
+		$current_url = home_url( add_query_arg( [], $wp->request ) );
+
+		foreach ( $last_modified_exclude_exp as $expr ) {
+			if ( ! empty( $expr ) && strpos( urldecode( $current_url ), $expr ) !== false ) {
+				return;
+			}
+		}
+
+		/**
+		 * if Search - just return
+		 */
+		if ( is_search() ) {
+			return;
+		}
+
+		$last_modified = '';
+		/**
+		 * If posts, pages, custom post types
+		 */
+		if ( is_singular() ) {
+			global $post;
+			if ( ! isset( $post->post_modified_gmt ) ) {
+				return;
+			}
+			$post_time     = strtotime( $post->post_modified_gmt );
+			$modified_time = $post_time;
+			/**
+			 * If we have comment set new modified date
+			 */
+			if ( (int) $post->comment_count > 0 ) {
+				$comments = get_comments( [
+					'post_id' => $post->ID,
+					'number'  => '1',
+					'status'  => 'approve',
+					'orderby' => 'comment_date_gmt',
+				] );
+				if ( ! empty( $comments ) && isset( $comments[0] ) ) {
+					$comment_time = strtotime( $comments[0]->comment_date_gmt );
+					if ( $comment_time > $post_time ) {
+						$modified_time = $comment_time;
+					}
+				}
+			}
+			$last_modified = str_replace( '+0000', 'GMT', gmdate( 'r', $modified_time ) );
+		}
+		/**
+		 * If any archives: categories, tags, taxonomy terms, post type archives
+		 */
+		if ( is_archive() || is_home() ) {
+			global $posts;
+			if ( empty( $posts ) ) {
+				return;
+			}
+			$post = $posts[0];
+			if ( ! isset( $post->post_modified_gmt ) ) {
+				return;
+			}
+			$post_time     = strtotime( $post->post_modified_gmt );
+			$modified_time = $post_time;
+			$last_modified = str_replace( '+0000', 'GMT', gmdate( 'r', $modified_time ) );
+		}
+
+		/**
+		 * If headers already sent - do nothing
+		 */
+
+		if ( headers_sent() ) {
+			return;
+		}
+
+		if ( ! empty( $last_modified ) && ! empty( $modified_time ) ) {
+
+			//todo: Fix bug, admin bar is not hidden after logout
+			if ( $last_modified_flush ) {
+				$modified_time += rand( 1, 99 );
+			}
+
+			header( 'Last-Modified: ' . $last_modified );
+
+			if ( $this->getPopulateOption( 'if_modified_since_headers' ) && ! is_user_logged_in() ) {
+
+				if ( isset( $_SERVER['HTTP_IF_MODIFIED_SINCE'] ) && strtotime( $_SERVER['HTTP_IF_MODIFIED_SINCE'] ) >= $modified_time ) {
+
+					$protocol = ( isset( $_SERVER['SERVER_PROTOCOL'] ) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.0' );
+
+					header( $protocol . ' 304 Not Modified' );
+				}
+			}
+		}
+	}
+
+	function lastModifedFlushCookie() {
+		if ( ! isset( $_COOKIE['wbcr_lastmodifed_flush'] ) ) {
+			setcookie( "wbcr_lastmodifed_flush", 1, time() + 3600 );
+		}
+	}
+}