File: /var/www/karjerosdiena.lt/wp-content/plugins/wp-all-import/classes/chunk.php
<?php
include __DIR__ . "/XmlStreamReader/autoload.php";
use Prewk\XmlStringStreamer;
use Prewk\XmlStringStreamer\Parser;
use Prewk\XmlStringStreamer\Stream;
/**
* Chunk
*
* Reads a large file in as chunks for easier parsing.
*
*
* @package default
* @author Max Tsiplyakov
*/
class PMXI_Chunk {
/**
* options
*
* @var array Contains all major options
* @access public
*/
public $options = array(
'path' => './', // string The path to check for $file in
'element' => '', // string The XML element to return
'type' => 'upload',
'encoding' => 'UTF-8',
'pointer' => 1,
'chunkSize' => 1024,
'filter' => true,
'get_cloud' => false
);
/**
* file
*
* @var string The filename being read
* @access public
*/
public $file = '';
/**
* pointer
*
* @var integer The current position the file is being read from
* @access public
*/
public $reader;
public $cloud = array();
public $loop = 1;
public $is_404 = false;
public $parser_type = false;
/**
* handle
*
* @var resource The fopen() resource
* @access private
*/
private $handle = null;
/**
* reading
*
* @var boolean Whether the script is currently reading the file
* @access private
*/
/**
* __construct
*
* Builds the Chunk object
*
* @param string $file The filename to work with
* @param array $options The options with which to parse the file
*
* @author Dom Hastings
* @access public
*/
public function __construct( $file, $options = array(), $parser_type = false ) {
try {
// merge the options together
$this->options = array_merge( $this->options, ( is_array( $options ) ? $options : array() ) );
$this->options['chunkSize'] *= PMXI_Plugin::getInstance()->getOption( 'chunk_size' );
// set the filename
$this->file = $file;
$this->parser_type = empty( $parser_type ) ? 'xmlreader' : $parser_type;
$sleep = apply_filters( 'wp_all_import_shard_delay', 0 );
usleep( $sleep );
$is_html = false;
$f = @fopen( $file, "rb" );
if ( is_resource( $file ) ) {
while ( ! @feof( $f ) ) {
$chunk = @fread( $f, 1024 );
if ( strpos( $chunk, "<!DOCTYPE" ) === 0 ) {
$is_html = true;
}
break;
}
@fclose( $f );
}
if ( $is_html ) {
$path = $this->get_file_path();
$this->is_404 = true;
$this->reader = new XMLReader();
@$this->reader->open( $path );
@$this->reader->setParserProperty( XMLReader::VALIDATE, false );
return;
}
$input = new PMXI_Input();
$import_id = $input->get( 'id', 0 );
if ( empty( $import_id ) ) {
$import_id = $input->get( 'import_id', 0 );
}
if ( PMXI_Plugin::getInstance()->getOption( 'force_stream_reader' ) ) {
$this->parser_type = 'xmlstreamer';
} else {
if ( ! empty( $import_id ) ) {
$this->parser_type = empty( $parser_type ) ? 'xmlreader' : $parser_type;
$import = new PMXI_Import_Record();
$import->getById( $import_id );
if ( ! $import->isEmpty() ) {
$this->parser_type = empty( $import->options['xml_reader_engine'] ) ? 'xmlreader' : 'xmlstreamer';
}
} else {
$this->parser_type = empty( $parser_type ) ? get_option( 'wpai_parser_type', 'xmlreader' ) : $parser_type;
}
}
if ( empty( $this->options['element'] ) or $this->options['get_cloud'] ) {
$path = $this->get_file_path();
if ( $this->parser_type == 'xmlreader' ) {
$reader = new XMLReader();
$reader->open( $path );
$reader->setParserProperty( XMLReader::VALIDATE, false );
while ( @$reader->read() ) {
switch ( $reader->nodeType ) {
case ( XMLREADER::ELEMENT ):
$localName = str_replace( "_colon_", ":", $reader->localName );
if ( array_key_exists( str_replace( ":", "_", $localName ), $this->cloud ) ) {
$this->cloud[ str_replace( ":", "_", $localName ) ] ++;
} else {
$this->cloud[ str_replace( ":", "_", $localName ) ] = 1;
}
break;
default:
break;
}
}
unset( $reader );
} else {
$CHUNK_SIZE = 1024;
$streamProvider = new Prewk\XmlStringStreamer\Stream\File( $path, $CHUNK_SIZE );
$parseroptions = array(
"extractContainer" => false, // Required option
);
// Works like an XmlReader, and walks the XML tree node by node. Captures by node depth setting.
$parser = new Parser\StringWalker( $parseroptions );
// Create the streamer
$streamer = new XmlStringStreamer( $parser, $streamProvider );
while ( $node = $streamer->getNode() ) {
// $simpleXmlNode = simplexml_load_string($node);
// echo (string)$simpleXmlNode->firstName;
}
$this->cloud = $parser->cloud;
}
if ( ! empty( $this->cloud ) and empty( $this->options['element'] ) ) {
arsort( $this->cloud );
$main_elements = array(
'node',
'product',
'job',
'deal',
'entry',
'item',
'property',
'listing',
'hotel',
'record',
'article',
'post',
'book',
'item_0'
);
foreach ( $this->cloud as $element_name => $value ) {
if ( in_array( strtolower( $element_name ), $main_elements ) ) {
$this->options['element'] = $element_name;
break;
}
}
if ( empty( $this->options['element'] ) ) {
foreach ( $this->cloud as $el => $count ) {
$this->options['element'] = $el;
break;
}
}
$this->options['element'] = apply_filters( 'wp_all_import_root_element', $this->options['element'], $import_id, $this->cloud );
}
}
$path = $this->get_file_path();
if ( $this->parser_type == 'xmlreader' ) {
$this->reader = new XMLReader();
@$this->reader->open( $path );
@$this->reader->setParserProperty( XMLReader::VALIDATE, false );
} else {
$parseroptions = array(
"uniqueNode" => $this->options['element']
);
$CHUNK_SIZE = 1024;
$streamProvider = new Prewk\XmlStringStreamer\Stream\File( $path, $CHUNK_SIZE );
$parser = new Parser\UniqueNode( $parseroptions );
$this->reader = new XmlStringStreamer( $parser, $streamProvider );
}
} catch ( Throwable $e ) {
if (defined('WP_DEBUG') && WP_DEBUG) {
error_log('Error in PMXI_Chunk constructor: ' . $e->getMessage());
}
$this->options = array();
$this->reader = null;
$this->file = '';
$this->cloud = array();
$this->loop = 1;
$this->is_404 = false;
$this->parser_type = false;
}
}
function get_file_path() {
$is_enabled_stream_filter = apply_filters( 'wp_all_import_is_enabled_stream_filter', true );
if ( function_exists( 'stream_filter_register' ) and $this->options['filter'] and $is_enabled_stream_filter and $this->parser_type == 'xmlreader' ) {
stream_filter_register( 'preprocessxml', 'preprocessXml_filter' );
if ( defined( 'HHVM_VERSION' ) ) {
$path = $this->file;
} else {
$path = 'php://filter/read=preprocessxml/resource=' . $this->file;
}
} else {
$path = $this->file;
}
return $path;
}
/**
* __destruct
*
* Cleans up
*
* @return void
* @author Dom Hastings
* @access public
*/
public function __destruct() {
// close the file resource
unset( $this->reader );
}
/**
* read
*
* Reads the first available occurence of the XML element $this->options['element']
*
* @return string The XML string from $this->file
* @author Dom Hastings
* @access public
*/
public function read( $debug = false ) {
// trim it
$element = trim( $this->options['element'] );
$xml = '';
if ( $this->parser_type == 'xmlreader' ) {
try {
while ( @$this->reader->read() ) {
switch ( $this->reader->nodeType ) {
case ( XMLREADER::ELEMENT ):
$localName = str_replace( "_colon_", ":", $this->reader->localName );
if ( strtolower( str_replace( ":", "_", $localName ) ) == strtolower( $element ) ) {
if ( $this->loop < $this->options['pointer'] ) {
$this->loop ++;
continue( 2 );
}
$xml = @$this->reader->readOuterXML();
break( 2 );
}
break;
default:
// code ...
break;
}
}
} catch ( XmlImportException $e ) {
$xml = false;
}
} else {
$is_preprocess_enabled = apply_filters( 'is_xml_preprocess_enabled', true );
while ( $xml = $this->reader->getNode() ) {
if ( $this->loop < $this->options['pointer'] ) {
$this->loop ++;
continue;
}
if ( $is_preprocess_enabled ) {
// the & symbol is not valid in XML, so replace it with temporary word _ampersand_
$xml = str_replace( "&", "_ampersand_", $xml );
$xml = preg_replace( '/[^\x{0009}\x{000a}\x{000d}\x{0020}-\x{D7FF}\x{E000}-\x{FFFD}]+/u', ' ', str_replace( ":", "_colon_", $xml ) );
}
break;
}
}
return ( ! empty( $xml ) ) ? self::removeColonsFromRSS( preg_replace( '%xmlns\s*=\s*([\'"]).*\1%sU', '', $xml ) ) : false;
}
public static function removeColonsFromRSS( $feed ) {
$feed = str_replace( "_colon_", ":", $feed );
// pull out colons from start tags
// (<\w+):(\w+>)
$pattern = '/(<\w+):([\w+|\.|-]+[ |>]{1})/i';
$replacement = '$1_$2';
$feed = preg_replace( $pattern, $replacement, $feed );
// pull out colons from end tags
// (<\/\w+):(\w+>)
$pattern = '/(<\/\w+):([\w+|\.|-]+>)/i';
$replacement = '$1_$2';
$feed = preg_replace( $pattern, $replacement, $feed );
$is_replace_colons = apply_filters( 'wp_all_import_replace_colons_in_attribute_names', true );
if ( $is_replace_colons ) {
// pull out colons from attributes
$pattern = '/(\s+\w+):(\w+[=]{1})/i';
$replacement = '$1_$2';
$feed = preg_replace( $pattern, $replacement, $feed );
}
// pull colons from single element
// (<\w+):(\w+\/>)
$pattern = '/(<\w+):([\w+|\.|-]+\/>)/i';
$replacement = '$1_$2';
$feed = preg_replace( $pattern, $replacement, $feed );
$is_preprocess_enabled = apply_filters( 'is_xml_preprocess_enabled', true );
if ( $is_preprocess_enabled ) {
// replace temporary word _ampersand_ back to & symbol
$feed = str_replace( "_ampersand_", "&", $feed );
}
// replace all standalone & symbols ( which is not in htmlentities e.q. and not wrapped in CDATA section ) to &
PMXI_Import_Record::preprocessXml( $feed );
return $feed;
}
}
class preprocessXml_filter extends php_user_filter {
#[\ReturnTypeWillChange]
public function filter( $in, $out, &$consumed, $closing ) {
while ( $bucket = stream_bucket_make_writeable( $in ) ) {
$is_preprocess_enabled = apply_filters( 'is_xml_preprocess_enabled', true );
if ( $is_preprocess_enabled ) {
// the & symbol is not valid in XML, so replace it with temporary word _ampersand_
$bucket->data = str_replace( "&", "_ampersand_", $bucket->data );
$cleanXML = preg_replace( '/[^\x{0009}\x{000a}\x{000d}\x{0020}-\x{D7FF}\x{E000}-\x{FFFD}]+/u', ' ', $this->replace_colons( $bucket->data ) );
if ( $cleanXML == null && preg_last_error() == PREG_BAD_UTF8_ERROR ) {
$cleanXML = preg_replace( '/[^\x09\x0a\x0d\x20-\xFF]+/', ' ', $this->replace_colons( $bucket->data ) );
}
if ( $cleanXML == null && preg_last_error() == PREG_BAD_UTF8_ERROR ) {
if ( function_exists( 'mb_ereg_replace' ) ) {
mb_regex_encoding( 'UTF-8' );
$cleanXML = mb_ereg_replace( '/[^\x{0009}\x{000a}\x{000d}\x{0020}-\x{D7FF}\x{E000}-\x{FFFD}]+/u', ' ', $this->replace_colons( $bucket->data ) );
}
}
$bucket->data = empty( $cleanXML ) ? $this->replace_colons( $bucket->data ) : $cleanXML;
}
$consumed += $bucket->datalen;
stream_bucket_append( $out, $bucket );
}
return PSFS_PASS_ON;
}
function replace_colons( $data ) {
return str_replace( ":", "_colon_", $data );
}
}