Runtime.php

См. документацию.

<?php
 
namespace Bitrix\Seo\Sitemap\File;
 
use Bitrix\Main\Text\Converter;
use Bitrix\Main\IO\File;
use Bitrix\Main\IO\Path;
 
class Runtime extends Base
{
    const PROGRESS_WIDTH = 500;
    
    protected $PID = 0;
    private $originalFile = NULL;
    
    public function __construct($PID, $fileName, $arSettings)
    {
        $this->PID = $PID;
        
        if ($this->partFile == '')
        {
            $this->partFile = $fileName;
        }
 
//      normalize slashes
        $fileName = Path::normalize($fileName);
//      divide directory and path tp correctly add prefix
        $lastSlashPosition = mb_strrpos($fileName, "/");
        $fileDirectory = '';
        if ($lastSlashPosition !== false)
        {
            $fileDirectory = mb_substr($fileName, 0, $lastSlashPosition + 1);
            $fileName = mb_substr($fileName, $lastSlashPosition + 1);
        }
        
        parent::__construct($fileDirectory . $this->getPrefix() . $fileName, $arSettings);
    }
    
    protected function reInit($fileName)
    {
        $this->__construct($this->PID, $fileName, $this->settings);
    }
    
    public function putSitemapContent(Base $sitemapFile)
    {
//      always write in new empty file - this is necessary
        if ($this->isExists())
            $this->delete();
        
        if ($sitemapFile->isExists())
        {
            $this->putContents($sitemapFile->getContents());
            $this->partChanged = true;
            $this->footerClosed = true;
        }
        else
        {
            $this->addHeader();
        }
    }
    
    
    public function setOriginalFile(Base $sitemapFile)
    {
        if (isset($sitemapFile))
        {
            $this->originalFile = $sitemapFile;
        }
    }
    
    public function appendIBlockEntry($url, $modifiedDate)
    {
//      if not set original file - to use as common sitemap file
        if(!$this->originalFile)
        {
            parent::appendIBlockEntry($url, $modifiedDate);
            return;
        }
        
        if ($this->originalFile->isExists())
        {
//          move sitemapfile to end, find name of last part
            while ($this->originalFile->isSplitNeeded())
            {
                $filename = $this->originalFile->split();
            }
 
//          if part was changed - create new runtime part file
            if (isset($filename) && $filename)
                $this->reInit($filename);
            
            $this->putSitemapContent($this->originalFile);
            $e = [];
            $this->appendEntry(array(
                'XML_LOC' => $this->settings['PROTOCOL'] . '://' . \CBXPunycode::toASCII($this->settings['DOMAIN'], $e) . $url,
                'XML_LASTMOD' => date('c', $modifiedDate - \CTimeZone::getOffset()),
            ));
        }
        else
        {
            $this->addHeader();
            $this->addIBlockEntry($url, $modifiedDate);
            $this->addFooter();
        }
    }
    
    public function finish()
    {
        foreach ($this->partList as $key => $partName)
        {
            $f = new File(Path::combine($this->getDirectoryName(), $partName));
            $f->rename(str_replace($this->getPrefix(), '', $f->getPath()));
            $this->partList[$key] = $f->getName();
        }
        
        if ($this->isCurrentPartNotEmpty())
        {
            if (!$this->footerClosed)
            {
                $this->addFooter();
            }
            $this->rename(str_replace($this->getPrefix(), '', $this->getPath()));
        }
    }
    
    protected function getPrefix()
    {
        return '~' . $this->PID;
    }
}