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<?php if ( ! defined( 'ABSPATH' ) ) { exit; // Exit if accessed directly. } /** * WordPress eXtended RSS file parser implementations * * @package WordPress * @subpackage Importer / /* * WXR Parser that uses regular expressions. Fallback for installs without an XML parser. / class WXR_Parser_Regex { /* * @var bool / private $has_gzip; private $authors = []; private $posts = []; private $categories = []; private $tags = []; private $terms = []; private $base_url = ''; private $base_blog_url = ''; /* * @param string $file * * @return array\|\WP_Error / public function parse( $file ) { $wxr_version = ''; $in_multiline = false; $multiline_content = ''; $multiline_tags = [ 'item' => [ 'posts', function ( $post ) { return $this->process_post( $post ); }, ], 'wp:category' => [ 'categories', function ( $category ) { return $this->process_category( $category ); }, ], 'wp:tag' => [ 'tags', function ( $tag ) { return $this->process_tag( $tag ); }, ], 'wp:term' => [ 'terms', function ( $term ) { return $this->process_term( $term ); }, ], ]; $fp = $this->fopen( $file, 'r' ); if ( $fp ) { while ( ! $this->feof( $fp ) ) { $importline = rtrim( $this->fgets( $fp ) ); if ( ! $wxr_version && preg_match( '\|<wp:wxr_version>(\d+\.\d+)</wp:wxr_version>\|', $importline, $version ) ) { $wxr_version = $version[1]; } if ( false !== strpos( $importline, '<wp:base_site_url>' ) ) { preg_match( '\|<wp:base_site_url>(.?)</wp:base_site_url>\|is', $importline, $url ); $this->base_url = $url[1]; continue; } if ( false !== strpos( $importline, '<wp:base_blog_url>' ) ) { preg_match( '\|<wp:base_blog_url>(.?)</wp:base_blog_url>\|is', $importline, $blog_url ); $this->base_blog_url = $blog_url[1]; continue; } else { $this->base_blog_url = $this->base_url; } if ( false !== strpos( $importline, '<wp:author>' ) ) { preg_match( '\|<wp:author>(.?)</wp:author>\|is', $importline, $author ); $a = $this->process_author( $author[1] ); $this->authors[ $a['author_login'] ] = $a; continue; } foreach ( $multiline_tags as $tag => $handler ) { // Handle multi-line tags on a singular line. if ( preg_match( '\|<'. $tag .'>(.?)</'. $tag .'>\|is', $importline, $matches ) ) { $this->{$handler[0]}[] = call_user_func( $handler[1], $matches[1] ); continue; } $pos = strpos( $importline, "<$tag>" ); if ( false !== $pos ) { // Take note of any content after the opening tag. $multiline_content = trim( substr( $importline, $pos + strlen( $tag ) + 2 ) ); // We don't want to have this line added to `$is_multiline` below. $importline = ''; $in_multiline = $tag; continue; } $pos = strpos( $importline, "</$tag>" ); if ( false !== $pos ) { $in_multiline = false; $multiline_content .= trim( substr( $importline, 0, $pos ) ); $this->{$handler[0]}[] = call_user_func( $handler[1], $multiline_content ); } } if ( $in_multiline && $importline ) { $multiline_content .= $importline . "\n"; } } $this->fclose( $fp ); } if ( ! $wxr_version ) { return new WP_Error( 'WXR_parse_error', esc_html__( 'This does not appear to be a WXR file, missing/invalid WXR version number', 'wpr-addons' ) ); } return [ 'authors' => $this->authors, 'posts' => $this->posts, 'categories' => $this->categories, 'tags' => $this->tags, 'terms' => $this->terms, 'base_url' => $this->base_url, 'base_blog_url' => $this->base_blog_url, 'version' => $wxr_version, ]; } private function process_category( $category ) { $term = [ 'term_id' => $this->get_tag( $category, 'wp:term_id' ), 'cat_name' => $this->get_tag( $category, 'wp:cat_name' ), 'category_nicename' => $this->get_tag( $category, 'wp:category_nicename' ), 'category_parent' => $this->get_tag( $category, 'wp:category_parent' ), 'category_description' => $this->get_tag( $category, 'wp:category_description' ), ]; $term_meta = $this->process_meta( $category, 'wp:termmeta' ); if ( ! empty( $term_meta ) ) { $term['termmeta'] = $term_meta; } return $term; } private function process_tag( $tag ) { $term = [ 'term_id' => $this->get_tag( $tag, 'wp:term_id' ), 'tag_name' => $this->get_tag( $tag, 'wp:tag_name' ), 'tag_slug' => $this->get_tag( $tag, 'wp:tag_slug' ), 'tag_description' => $this->get_tag( $tag, 'wp:tag_description' ), ]; $term_meta = $this->process_meta( $tag, 'wp:termmeta' ); if ( ! empty( $term_meta ) ) { $term['termmeta'] = $term_meta; } return $term; } private function process_term( $term ) { $term_data = [ 'term_id' => $this->get_tag( $term, 'wp:term_id' ), 'term_taxonomy' => $this->get_tag( $term, 'wp:term_taxonomy' ), 'slug' => $this->get_tag( $term, 'wp:term_slug' ), 'term_parent' => $this->get_tag( $term, 'wp:term_parent' ), 'term_name' => $this->get_tag( $term, 'wp:term_name' ), 'term_description' => $this->get_tag( $term, 'wp:term_description' ), ]; $term_meta = $this->process_meta( $term, 'wp:termmeta' ); if ( ! empty( $term_meta ) ) { $term_data['termmeta'] = $term_meta; } return $term_data; } private function process_meta( $string, $tag ) { $parsed_meta = []; preg_match_all( "\|<$tag>(.+?)</$tag>\|is", $string, $meta ); if ( ! isset( $meta[1] ) ) { return $parsed_meta; } foreach ( $meta[1] as $m ) { $parsed_meta[] = [ 'key' => $this->get_tag( $m, 'wp:meta_key' ), 'value' => $this->get_tag( $m, 'wp:meta_value' ), ]; } return $parsed_meta; } private function process_author( $a ) { return [ 'author_id' => $this->get_tag( $a, 'wp:author_id' ), 'author_login' => $this->get_tag( $a, 'wp:author_login' ), 'author_email' => $this->get_tag( $a, 'wp:author_email' ), 'author_display_name' => $this->get_tag( $a, 'wp:author_display_name' ), 'author_first_name' => $this->get_tag( $a, 'wp:author_first_name' ), 'author_last_name' => $this->get_tag( $a, 'wp:author_last_name' ), ]; } private function process_post( $post ) { $normalize_tag_callback = function ( $matches ) { return $this->normalize_tag( $matches ); }; $post_id = $this->get_tag( $post, 'wp:post_id' ); $post_title = $this->get_tag( $post, 'title' ); $post_date = $this->get_tag( $post, 'wp:post_date' ); $post_date_gmt = $this->get_tag( $post, 'wp:post_date_gmt' ); $comment_status = $this->get_tag( $post, 'wp:comment_status' ); $ping_status = $this->get_tag( $post, 'wp:ping_status' ); $status = $this->get_tag( $post, 'wp:status' ); $post_name = $this->get_tag( $post, 'wp:post_name' ); $post_parent = $this->get_tag( $post, 'wp:post_parent' ); $menu_order = $this->get_tag( $post, 'wp:menu_order' ); $post_type = $this->get_tag( $post, 'wp:post_type' ); $post_password = $this->get_tag( $post, 'wp:post_password' ); $is_sticky = $this->get_tag( $post, 'wp:is_sticky' ); $guid = $this->get_tag( $post, 'guid' ); $post_author = $this->get_tag( $post, 'dc:creator' ); $post_excerpt = $this->get_tag( $post, 'excerpt:encoded' ); $post_excerpt = preg_replace_callback( '\|<(/?[A-Z]+)\|', $normalize_tag_callback, $post_excerpt ); $post_excerpt = str_replace( '<br>', '<br />', $post_excerpt ); $post_excerpt = str_replace( '<hr>', '<hr />', $post_excerpt ); $post_content = $this->get_tag( $post, 'content:encoded' ); $post_content = preg_replace_callback( '\|<(/?[A-Z]+)\|', $normalize_tag_callback, $post_content ); $post_content = str_replace( '<br>', '<br />', $post_content ); $post_content = str_replace( '<hr>', '<hr />', $post_content ); $postdata = compact( 'post_id', 'post_author', 'post_date', 'post_date_gmt', 'post_content', 'post_excerpt', 'post_title', 'status', 'post_name', 'comment_status', 'ping_status', 'guid', 'post_parent', 'menu_order', 'post_type', 'post_password', 'is_sticky' ); $attachment_url = $this->get_tag( $post, 'wp:attachment_url' ); if ( $attachment_url ) { $postdata['attachment_url'] = $attachment_url; } preg_match_all( '\|<category domain="([^"]+?)" nicename="([^"]+?)">(.+?)</category>\|is', $post, $terms, PREG_SET_ORDER ); foreach ( $terms as $t ) { $post_terms[] = [ 'slug' => $t[2], 'domain' => $t[1], 'name' => str_replace( [ '<![CDATA[', ']]>' ], '', $t[3] ), ]; } if ( ! empty( $post_terms ) ) { $postdata['terms'] = $post_terms; } preg_match_all( '\|<wp:comment>(.+?)</wp:comment>\|is', $post, $comments ); $comments = $comments[1]; if ( $comments ) { foreach ( $comments as $comment ) { $post_comments[] = [ 'comment_id' => $this->get_tag( $comment, 'wp:comment_id' ), 'comment_author' => $this->get_tag( $comment, 'wp:comment_author' ), 'comment_author_email' => $this->get_tag( $comment, 'wp:comment_author_email' ), 'comment_author_IP' => $this->get_tag( $comment, 'wp:comment_author_IP' ), 'comment_author_url' => $this->get_tag( $comment, 'wp:comment_author_url' ), 'comment_date' => $this->get_tag( $comment, 'wp:comment_date' ), 'comment_date_gmt' => $this->get_tag( $comment, 'wp:comment_date_gmt' ), 'comment_content' => $this->get_tag( $comment, 'wp:comment_content' ), 'comment_approved' => $this->get_tag( $comment, 'wp:comment_approved' ), 'comment_type' => $this->get_tag( $comment, 'wp:comment_type' ), 'comment_parent' => $this->get_tag( $comment, 'wp:comment_parent' ), 'comment_user_id' => $this->get_tag( $comment, 'wp:comment_user_id' ), 'commentmeta' => $this->process_meta( $comment, 'wp:commentmeta' ), ]; } } if ( ! empty( $post_comments ) ) { $postdata['comments'] = $post_comments; } $post_meta = $this->process_meta( $post, 'wp:postmeta' ); if ( ! empty( $post_meta ) ) { $postdata['postmeta'] = $post_meta; } return $postdata; } private function get_tag( $string, $tag ) { preg_match( "\|<$tag.?>(.?)</$tag>\|is", $string, $return ); if ( isset( $return[1] ) ) { if ( substr( $return[1], 0, 9 ) == '<![CDATA[' ) { if ( strpos( $return[1], ']]]]><![CDATA[>' ) !== false ) { preg_match_all( '\|<!\[CDATA\[(.?)\]\]>\|s', $return[1], $matches ); $return = ''; foreach ( $matches[1] as $match ) { $return .= $match; } } else { $return = preg_replace( '\|^<!\[CDATA\[(.)\]\]>$\|s', '$1', $return[1] ); } } else { $return = $return[1]; } } else { $return = ''; } return $return; } private function normalize_tag( $matches ) { return '<' . strtolower( $matches[1] ); } private function fopen( $filename, $mode = 'r' ) { if ( $this->has_gzip ) { return gzopen( $filename, $mode ); } return fopen( $filename, $mode ); } private function feof( $fp ) { if ( $this->has_gzip ) { return gzeof( $fp ); } return feof( $fp ); } private function fgets( $fp, $len = 8192 ) { if ( $this->has_gzip ) { return gzgets( $fp, $len ); } return fgets( $fp, $len ); } private function fclose( $fp ) { if ( $this->has_gzip ) { return gzclose( $fp ); } return fclose( $fp ); } public function __construct() { $this->has_gzip = is_callable( 'gzopen' ); } } /* * WordPress eXtended RSS file parser implementations, * Originally made by WordPress part of WordPress/Importer. * https://plugins.trac.wordpress.org/browser/wordpress-importer/trunk/parsers/class-wxr-parser-simplexml.php * * What was done: * Reformat of the code. * Removed variable '$internal_errors'. * Changed text domain. / /* * WXR Parser that makes use of the SimpleXML PHP extension. / class WXR_Parser_SimpleXML { /* * @param string $file * * @return array\|\WP_Error / public function parse( $file ) { $authors = []; $posts = []; $categories = []; $tags = []; $terms = []; libxml_use_internal_errors( true ); $dom = new \DOMDocument(); $old_value = null; $libxml_disable_entity_loader_exists = function_exists( 'libxml_disable_entity_loader' ); if ( PHP_VERSION_ID < 80000 && $libxml_disable_entity_loader_exists ) { // Only call libxml_disable_entity_loader() for PHP versions before 8.0 $old_value = libxml_disable_entity_loader( true ); // phpcs:ignore Generic.PHP.DeprecatedFunctions.Deprecated } $success = $dom->loadXML( file_get_contents( $file ) ); if ( PHP_VERSION_ID < 80000 && $libxml_disable_entity_loader_exists && ! is_null( $old_value ) ) { libxml_disable_entity_loader( $old_value ); // phpcs:ignore Generic.PHP.DeprecatedFunctions.Deprecated } if ( ! $success \|\| isset( $dom->doctype ) ) { return new WP_Error( 'SimpleXML_parse_error', esc_html__( 'There was an error when reading this WXR file', 'wpr-addons' ), libxml_get_errors() ); } $xml = simplexml_import_dom( $dom ); unset( $dom ); // Halt if loading produces an error. if ( ! $xml ) { return new WP_Error( 'SimpleXML_parse_error', esc_html__( 'There was an error when reading this WXR file', 'wpr-addons' ), libxml_get_errors() ); } $wxr_version = $xml->xpath( '/rss/channel/wp:wxr_version' ); if ( ! $wxr_version ) { return new WP_Error( 'WXR_parse_error', esc_html__( 'This does not appear to be a WXR file, missing/invalid WXR version number', 'wpr-addons' ) ); } $wxr_version = (string) trim( $wxr_version[0] ); // Confirm that we are dealing with the correct file format. if ( ! preg_match( '/^\d+\.\d+$/', $wxr_version ) ) { return new WP_Error( 'WXR_parse_error', esc_html__( 'This does not appear to be a WXR file, missing/invalid WXR version number', 'wpr-addons' ) ); } $base_url = $xml->xpath( '/rss/channel/wp:base_site_url' ); $base_url = (string) trim( isset( $base_url[0] ) ? $base_url[0] : '' ); $base_blog_url = $xml->xpath( '/rss/channel/wp:base_blog_url' ); if ( $base_blog_url ) { $base_blog_url = (string) trim( $base_blog_url[0] ); } else { $base_blog_url = $base_url; } $page_on_front = $xml->xpath( '/rss/channel/wp:page_on_front' ); if ( $page_on_front ) { $page_on_front = (int) $page_on_front[0]; } $namespaces = $xml->getDocNamespaces(); if ( ! isset( $namespaces['wp'] ) ) { $namespaces['wp'] = 'http://wordpress.org/export/1.1/'; } if ( ! isset( $namespaces['excerpt'] ) ) { $namespaces['excerpt'] = 'http://wordpress.org/export/1.1/excerpt/'; } // Grab authors. foreach ( $xml->xpath( '/rss/channel/wp:author' ) as $author_arr ) { $a = $author_arr->children( $namespaces['wp'] ); $login = (string) $a->author_login; $authors[ $login ] = [ 'author_id' => (int) $a->author_id, 'author_login' => $login, 'author_email' => (string) $a->author_email, 'author_display_name' => (string) $a->author_display_name, 'author_first_name' => (string) $a->author_first_name, 'author_last_name' => (string) $a->author_last_name, ]; } // Grab cats, tags and terms. foreach ( $xml->xpath( '/rss/channel/wp:category' ) as $term_arr ) { $t = $term_arr->children( $namespaces['wp'] ); $category = [ 'term_id' => (int) $t->term_id, 'category_nicename' => (string) $t->category_nicename, 'category_parent' => (string) $t->category_parent, 'cat_name' => (string) $t->cat_name, 'category_description' => (string) $t->category_description, ]; foreach ( $t->termmeta as $meta ) { $category['termmeta'][] = [ 'key' => (string) $meta->meta_key, 'value' => (string) $meta->meta_value, ]; } $categories[] = $category; } foreach ( $xml->xpath( '/rss/channel/wp:tag' ) as $term_arr ) { $t = $term_arr->children( $namespaces['wp'] ); $tag = [ 'term_id' => (int) $t->term_id, 'tag_slug' => (string) $t->tag_slug, 'tag_name' => (string) $t->tag_name, 'tag_description' => (string) $t->tag_description, ]; foreach ( $t->termmeta as $meta ) { $tag['termmeta'][] = [ 'key' => (string) $meta->meta_key, 'value' => (string) $meta->meta_value, ]; } $tags[] = $tag; } foreach ( $xml->xpath( '/rss/channel/wp:term' ) as $term_arr ) { $t = $term_arr->children( $namespaces['wp'] ); $term = [ 'term_id' => (int) $t->term_id, 'term_taxonomy' => (string) $t->term_taxonomy, 'slug' => (string) $t->term_slug, 'term_parent' => (string) $t->term_parent, 'term_name' => (string) $t->term_name, 'term_description' => (string) $t->term_description, ]; foreach ( $t->termmeta as $meta ) { $term['termmeta'][] = [ 'key' => (string) $meta->meta_key, 'value' => (string) $meta->meta_value, ]; } $terms[] = $term; } // Grab posts. foreach ( $xml->channel->item as $item ) { $post = [ 'post_title' => (string) $item->title, 'guid' => (string) $item->guid, ]; $dc = $item->children( 'http://purl.org/dc/elements/1.1/' ); $post['post_author'] = (string) $dc->creator; $content = $item->children( 'http://purl.org/rss/1.0/modules/content/' ); $excerpt = $item->children( $namespaces['excerpt'] ); $post['post_content'] = (string) $content->encoded; $post['post_excerpt'] = (string) $excerpt->encoded; $wp = $item->children( $namespaces['wp'] ); $post['post_id'] = (int) $wp->post_id; $post['post_date'] = (string) $wp->post_date; $post['post_date_gmt'] = (string) $wp->post_date_gmt; $post['comment_status'] = (string) $wp->comment_status; $post['ping_status'] = (string) $wp->ping_status; $post['post_name'] = (string) $wp->post_name; $post['status'] = (string) $wp->status; $post['post_parent'] = (int) $wp->post_parent; $post['menu_order'] = (int) $wp->menu_order; $post['post_type'] = (string) $wp->post_type; $post['post_password'] = (string) $wp->post_password; $post['is_sticky'] = (int) $wp->is_sticky; if ( isset( $wp->attachment_url ) ) { $post['attachment_url'] = (string) $wp->attachment_url; } foreach ( $item->category as $c ) { $att = $c->attributes(); if ( isset( $att['nicename'] ) ) { $post['terms'][] = [ 'name' => (string) $c, 'slug' => (string) $att['nicename'], 'domain' => (string) $att['domain'], ]; } } foreach ( $wp->postmeta as $meta ) { $post['postmeta'][] = [ 'key' => (string) $meta->meta_key, 'value' => (string) $meta->meta_value, ]; } foreach ( $wp->comment as $comment ) { $meta = []; if ( isset( $comment->commentmeta ) ) { foreach ( $comment->commentmeta as $m ) { $meta[] = [ 'key' => (string) $m->meta_key, 'value' => (string) $m->meta_value, ]; } } $post['comments'][] = [ 'comment_id' => (int) $comment->comment_id, 'comment_author' => (string) $comment->comment_author, 'comment_author_email' => (string) $comment->comment_author_email, 'comment_author_IP' => (string) $comment->comment_author_IP, 'comment_author_url' => (string) $comment->comment_author_url, 'comment_date' => (string) $comment->comment_date, 'comment_date_gmt' => (string) $comment->comment_date_gmt, 'comment_content' => (string) $comment->comment_content, 'comment_approved' => (string) $comment->comment_approved, 'comment_type' => (string) $comment->comment_type, 'comment_parent' => (string) $comment->comment_parent, 'comment_user_id' => (int) $comment->comment_user_id, 'commentmeta' => $meta, ]; } $posts[] = $post; } return [ 'authors' => $authors, 'posts' => $posts, 'categories' => $categories, 'tags' => $tags, 'terms' => $terms, 'base_url' => $base_url, 'base_blog_url' => $base_blog_url, 'page_on_front' => $page_on_front, 'version' => $wxr_version, ]; } } /* * WordPress eXtended RSS file parser implementations, * Originally made by WordPress part of WordPress/Importer. * https://plugins.trac.wordpress.org/browser/wordpress-importer/trunk/parsers/class-wxr-parser-xml.php * * What was done: * Reformat of the code. * Added PHPDOC. * Changed text domain. * Added clear() method. * Added undeclared class properties. * Changed methods visibility. / /* * WXR Parser that makes use of the XML Parser PHP extension. / class WXR_Parser_XML { private static $wp_tags = [ 'wp:post_id', 'wp:post_date', 'wp:post_date_gmt', 'wp:comment_status', 'wp:ping_status', 'wp:attachment_url', 'wp:status', 'wp:post_name', 'wp:post_parent', 'wp:menu_order', 'wp:post_type', 'wp:post_password', 'wp:is_sticky', 'wp:term_id', 'wp:category_nicename', 'wp:category_parent', 'wp:cat_name', 'wp:category_description', 'wp:tag_slug', 'wp:tag_name', 'wp:tag_description', 'wp:term_taxonomy', 'wp:term_parent', 'wp:term_name', 'wp:term_description', 'wp:author_id', 'wp:author_login', 'wp:author_email', 'wp:author_display_name', 'wp:author_first_name', 'wp:author_last_name', ]; private static $wp_sub_tags = [ 'wp:comment_id', 'wp:comment_author', 'wp:comment_author_email', 'wp:comment_author_url', 'wp:comment_author_IP', 'wp:comment_date', 'wp:comment_date_gmt', 'wp:comment_content', 'wp:comment_approved', 'wp:comment_type', 'wp:comment_parent', 'wp:comment_user_id', ]; /* * @var string / private $wxr_version; /* * @var string / private $cdata; /* * @var array / private $data; /* * @var array / private $sub_data; /* * @var boolean / private $in_post; /* * @var boolean / private $in_tag; /* * @var boolean / private $in_sub_tag; /* * @var array / private $authors; /* * @var array / private $posts; /* * @var array / private $term; /* * @var array / private $category; /* * @var array / private $tag; /* * @var string / private $base_url; /* * @var string / private $base_blog_url; /* * @param string $file * * @return array\|WP_Error / public function parse( $file ) { $this->clear(); $xml = xml_parser_create( 'UTF-8' ); xml_parser_set_option( $xml, XML_OPTION_SKIP_WHITE, 1 ); xml_parser_set_option( $xml, XML_OPTION_CASE_FOLDING, 0 ); xml_set_object( $xml, $this ); xml_set_character_data_handler( $xml, function ( $parser, $cdata ) { $this->cdata( $cdata ); } ); $tag_open_callback = function ( $parse, $tag, $attr ) { $this->tag_open( $tag, $attr ); }; $tag_close_callback = function ( $parser, $tag ) { $this->tag_close( $tag ); }; xml_set_element_handler( $xml, $tag_open_callback, $tag_close_callback ); if ( ! xml_parse( $xml, file_get_contents( $file ), true ) ) { $current_line = xml_get_current_line_number( $xml ); $current_column = xml_get_current_column_number( $xml ); $error_code = xml_get_error_code( $xml ); $error_string = xml_error_string( $error_code ); return new WP_Error( 'XML_parse_error', 'There was an error when reading this WXR file', [ $current_line, $current_column, $error_string, ] ); } xml_parser_free( $xml ); if ( ! preg_match( '/^\d+\.\d+$/', $this->wxr_version ) ) { return new WP_Error( 'WXR_parse_error', esc_html__( 'This does not appear to be a WXR file, missing/invalid WXR version number', 'wpr-addons' ) ); } return array( 'authors' => $this->authors, 'posts' => $this->posts, 'categories' => $this->category, 'tags' => $this->tag, 'terms' => $this->term, 'base_url' => $this->base_url, 'base_blog_url' => $this->base_blog_url, 'version' => $this->wxr_version, ); } private function tag_open( $tag, $attr ) { if ( in_array( $tag, self::$wp_tags ) ) { $this->in_tag = substr( $tag, 3 ); return; } if ( in_array( $tag, self::$wp_sub_tags ) ) { $this->in_sub_tag = substr( $tag, 3 ); return; } switch ( $tag ) { case 'category': if ( isset( $attr['domain'], $attr['nicename'] ) ) { $this->sub_data['domain'] = $attr['domain']; $this->sub_data['slug'] = $attr['nicename']; } break; case 'item': $this->in_post = true; // No break !!!. case 'title': if ( $this->in_post ) { $this->in_tag = 'post_title'; } break; case 'guid': $this->in_tag = 'guid'; break; case 'dc:creator': $this->in_tag = 'post_author'; break; case 'content:encoded': $this->in_tag = 'post_content'; break; case 'excerpt:encoded': $this->in_tag = 'post_excerpt'; break; case 'wp:term_slug': $this->in_tag = 'slug'; break; case 'wp:meta_key': $this->in_sub_tag = 'key'; break; case 'wp:meta_value': $this->in_sub_tag = 'value'; break; } } private function cdata( $cdata ) { if ( ! trim( $cdata ) ) { return; } if ( false !== $this->in_tag \|\| false !== $this->in_sub_tag ) { $this->cdata .= $cdata; } else { $this->cdata .= trim( $cdata ); } } private function tag_close( $tag ) { switch ( $tag ) { case 'wp:comment': unset( $this->sub_data['key'], $this->sub_data['value'] ); // Remove meta sub_data. if ( ! empty( $this->sub_data ) ) { $this->data['comments'][] = $this->sub_data; } $this->sub_data = []; break; case 'wp:commentmeta': $this->sub_data['commentmeta'][] = [ 'key' => $this->sub_data['key'], 'value' => $this->sub_data['value'], ]; break; case 'category': if ( ! empty( $this->sub_data ) ) { $this->sub_data['name'] = $this->cdata; $this->data['terms'][] = $this->sub_data; } $this->sub_data = []; break; case 'wp:postmeta': if ( ! empty( $this->sub_data ) ) { $this->data['postmeta'][] = $this->sub_data; } $this->sub_data = []; break; case 'item': $this->posts[] = $this->data; $this->data = []; break; case 'wp:category': case 'wp:tag': case 'wp:term': $n = substr( $tag, 3 ); array_push( $this->$n, $this->data ); $this->data = []; break; case 'wp:termmeta': if ( ! empty( $this->sub_data ) ) { $this->data['termmeta'][] = $this->sub_data; } $this->sub_data = []; break; case 'wp:author': if ( ! empty( $this->data['author_login'] ) ) { $this->authors[ $this->data['author_login'] ] = $this->data; } $this->data = []; break; case 'wp:base_site_url': $this->base_url = $this->cdata; if ( ! isset( $this->base_blog_url ) ) { $this->base_blog_url = $this->cdata; } break; case 'wp:base_blog_url': $this->base_blog_url = $this->cdata; break; case 'wp:wxr_version': $this->wxr_version = $this->cdata; break; default: if ( $this->in_sub_tag ) { $this->sub_data[ $this->in_sub_tag ] = $this->cdata; $this->in_sub_tag = false; } elseif ( $this->in_tag ) { $this->data[ $this->in_tag ] = $this->cdata; $this->in_tag = false; } } $this->cdata = ''; } private function clear() { $this->wxr_version = ''; $this->cdata = ''; $this->data = []; $this->sub_data = []; $this->in_post = false; $this->in_tag = false; $this->in_sub_tag = false; $this->authors = []; $this->posts = []; $this->term = []; $this->category = []; $this->tag = []; } } /* * WordPress eXtended RSS file parser implementations, * Originally made by WordPress part of WordPress/Importer. * https://plugins.trac.wordpress.org/browser/wordpress-importer/trunk/parsers/class-wxr-parser.php * * What was done: * Reformat of the code. * Changed text domain. / /* * WordPress Importer class for managing parsing of WXR files. */ class WXR_Parser { public function parse( $file ) { // Attempt to use proper XML parsers first. if ( extension_loaded( 'simplexml' ) ) { $parser = new WXR_Parser_SimpleXML(); $result = $parser->parse( $file ); // If SimpleXML succeeds or this is an invalid WXR file then return the results. if ( ! is_wp_error( $result ) \|\| 'SimpleXML_parse_error' != $result->get_error_code() ) { return $result; } } elseif ( extension_loaded( 'xml' ) ) { $parser = new WXR_Parser_XML(); $result = $parser->parse( $file ); // If XMLParser succeeds or this is an invalid WXR file then return the results. if ( ! is_wp_error( $result ) \|\| 'XML_parse_error' != $result->get_error_code() ) { return $result; } } // Use regular expressions if nothing else available or this is bad XML. $parser = new WXR_Parser_Regex(); return $parser->parse( $file ); } }

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