File "wxr-parser-xml.php"
Full Path: /home2/sdektunc/cepali.edu.mx/wp-content/plugins/elementor/core/utils/import-export/parsers/wxr-parser-xml.php
File size: 7.45 KB
MIME-type: text/x-php
Charset: utf-8
<?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* Originally made by WordPress part of WordPress/Importer.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 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;
} else if ( $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 = [];
}
}