| Current Path : /storage/v11800/affypharma/public_html/wp-content/plugins/auxin-elements/includes/classes/ |
Linux v11800 5.3.0-1023-aws #25~18.04.1-Ubuntu SMP Fri Jun 5 15:19:18 UTC 2020 aarch64
|
| Current File : /storage/v11800/affypharma/public_html/wp-content/plugins/auxin-elements/includes/classes/class-auxels-import-parser.php |
<?php
/**
* WordPress eXtended RSS file parser implementations
*
* @package WordPress
* @subpackage Importer
*/
/**
* WordPress Importer class for managing parsing of WXR files.
*/
class Auxels_Import_Parser {
public function parse( $file ) {
// Attempt to use proper XML parsers first
if ( extension_loaded( 'simplexml' ) ) {
$parser = new AUXELS_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 AUXELS_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 $result;
}
// We have a malformed XML file, so display the error and fallthrough to regex
if ( isset($result) && defined('IMPORT_DEBUG') && IMPORT_DEBUG ) {
echo '<pre>';
if ( 'SimpleXML_parse_error' == $result->get_error_code() ) {
foreach ( $result->get_error_data() as $error )
echo esc_html( $error->line ) . ':' . esc_html( $error->column ) . ' ' . esc_html( $error->message ) . "\n";
} elseif ( 'XML_parse_error' == $result->get_error_code() ) {
$error = $result->get_error_data();
echo esc_html( $error[0] ) . ':' . esc_html( $error[1] ) . ' ' . esc_html( $error[2] );
}
echo '</pre>';
echo '<p><strong>' . esc_html__( 'There was an error when reading this WXR file', 'auxin-elements' ) . '</strong><br />';
echo esc_html__( 'Details are shown above. The importer will now try again with a different parser...', 'auxin-elements' ) . '</p>';
}
// use regular expressions if nothing else available or this is bad XML
$parser = new AUXELS_WXR_Parser_Regex;
return $parser->parse( $file );
}
}
/**
* WXR Parser that makes use of the SimpleXML PHP extension.
*/
class AUXELS_WXR_Parser_SimpleXML {
public function parse( $file ) {
$options = $option = array();
$internal_errors = libxml_use_internal_errors(true);
$dom = new DOMDocument;
$old_value = null;
if ( function_exists( 'libxml_disable_entity_loader' ) ) {
$old_value = libxml_disable_entity_loader( true );
}
$success = $dom->loadXML( file_get_contents( $file ) );
if ( ! is_null( $old_value ) ) {
libxml_disable_entity_loader( $old_value );
}
if ( ! $success || isset( $dom->doctype ) ) {
return new WP_Error( 'SimpleXML_parse_error', __( 'There was an error when reading this WXR file', 'auxin-elements' ), 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', __( 'There was an error when reading this WXR file', 'auxin-elements' ), libxml_get_errors() );
$wxr_version = $xml->xpath('/rss/channel/wp:wxr_version');
if ( ! $wxr_version )
return new WP_Error( 'AUXELS_WXR_parse_error', __( 'This does not appear to be a WXR file, missing/invalid WXR version number', 'auxin-elements' ) );
$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( 'AUXELS_WXR_parse_error', __( 'This does not appear to be a WXR file, missing/invalid WXR version number', 'auxin-elements' ) );
$base_url = $xml->xpath('/rss/channel/wp:base_site_url');
$base_url = (string) trim( $base_url[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/';
$wp = $xml->channel->children( $namespaces['wp'] );
// grab cats, tags and terms
foreach ( $wp->option as $option ) {
$options[ $option->option_key[0]->__toString() ] = $option->option_value[0]->__toString();
}
return $options;
}
}
/**
* WXR Parser that makes use of the XML Parser PHP extension.
*/
class AUXELS_WXR_Parser_XML {
var $wp_tags = array(
'wp:option'
);
var $wp_sub_tags = array(
'wp:option_name', 'wp:option_value'
);
public function parse( $file ) {
$this->wxr_version = $this->in_post = $this->cdata = $this->data = $this->sub_data = $this->in_tag = $this->in_sub_tag = false;
$this->authors = $this->posts = $this->term = $this->category = $this->tag = array();
$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, 'cdata' );
xml_set_element_handler( $xml, 'tag_open', 'tag_close' );
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', array( $current_line, $current_column, $error_string ) );
}
xml_parser_free( $xml );
if ( ! preg_match( '/^\d+\.\d+$/', $this->wxr_version ) )
return new WP_Error( 'AUXELS_WXR_parse_error', __( 'This does not appear to be a WXR file, missing/invalid WXR version number', 'auxin-elements' ) );
return array(
'authors' => $this->authors,
'posts' => $this->posts,
'categories' => $this->category,
'tags' => $this->tag,
'terms' => $this->term,
'base_url' => $this->base_url,
'version' => $this->wxr_version
);
}
public function tag_open( $parse, $tag, $attr ) {
if ( in_array( $tag, $this->wp_tags ) ) {
$this->in_tag = substr( $tag, 3 );
return;
}
if ( in_array( $tag, $this->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;
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;
}
}
public function cdata( $parser, $cdata ) {
if ( ! trim( $cdata ) )
return;
if ( false !== $this->in_tag || false !== $this->in_sub_tag ) {
$this->cdata .= $cdata;
} else {
$this->cdata .= trim( $cdata );
}
}
public function tag_close( $parser, $tag ) {
switch ( $tag ) {
case 'wp:option':
$n = substr( $tag, 3 );
array_push( $this->$n, $this->data );
$this->data = false;
break;
}
$this->cdata = false;
}
}
/**
* WXR Parser that uses regular expressions. Fallback for installs without an XML parser.
*/
class AUXELS_WXR_Parser_Regex {
var $options = array();
public function __construct() {
$this->has_gzip = is_callable( 'gzopen' );
}
public function parse( $file ) {
$wxr_version = $in_post = false;
$fp = $this->fopen( $file, 'r' );
if ( $fp ) {
while ( ! $this->feof( $fp ) ) {
$importline = rtrim( $this->fgets( $fp ) );
if ( false !== strpos( $importline, '<wp:option>' ) ) {
preg_match( '|<wp:option>(.*?)</wp:option>|is', $importline, $option );
$this->options[] = $this->process_option( $option[1] );
continue;
}
if ( $in_post ) {
$post .= $importline . "\n";
}
}
$this->fclose($fp);
}
if ( ! $wxr_version )
return new WP_Error( 'AUXELS_WXR_parse_error', __( 'This does not appear to be a WXR file, missing/invalid WXR version number', 'auxin-elements' ) );
return array(
'options' => $this->options
);
}
public 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;
}
public function process_option( $t ) {
return array(
'option_name' => $this->get_tag( $t, 'wp:option_name' ),
'option_value' => $this->get_tag( $t, 'wp:option_value' )
);
}
public function _normalize_tag( $matches ) {
return '<' . strtolower( $matches[1] );
}
public function fopen( $filename, $mode = 'r' ) {
if ( $this->has_gzip )
return gzopen( $filename, $mode );
return fopen( $filename, $mode );
}
public function feof( $fp ) {
if ( $this->has_gzip )
return gzeof( $fp );
return feof( $fp );
}
public function fgets( $fp, $len = 8192 ) {
if ( $this->has_gzip )
return gzgets( $fp, $len );
return fgets( $fp, $len );
}
public function fclose( $fp ) {
if ( $this->has_gzip )
return gzclose( $fp );
return fclose( $fp );
}
}