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Editing: wxr-parser-xml.php
<?php namespace Elementor\Core\Utils\ImportExport\Parsers; use Elementor\Utils; use WP_Error; if ( ! defined( 'ABSPATH' ) ) { exit; // Exit if accessed directly. } /** * WordPress eXtended RSS file parser implementations, * Originally made by WordPress part of WordPress/Importer.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, Utils::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', 'elementor' ) ); } return [ '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 = []; } }
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