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<?php |
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declare(strict_types=1); |
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namespace Wszetko\Sitemap\Drivers\XML; |
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use Exception; |
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use Wszetko\Sitemap\Interfaces\XML; |
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use Wszetko\Sitemap\Sitemap; |
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use Wszetko\Sitemap\Traits\IsAssoc; |
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/** |
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* Class XMLWriter |
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* |
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* @package Wszetko\Sitemap\Drivers\XML |
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*/ |
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class XMLWriter implements XML |
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{ |
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use IsAssoc; |
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/** |
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* @var \XMLWriter |
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*/ |
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private $XMLWriter; |
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/** |
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* @var string |
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*/ |
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private $currentSitemap; |
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/** |
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* @var string |
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*/ |
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private $workDir; |
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/** |
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* @var string |
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*/ |
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private $domain; |
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/** |
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* XMLWriter constructor. |
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* |
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* @param array $config |
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* |
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* @throws \Exception |
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*/ |
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public function __construct(array $config) |
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{ |
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$this->XMLWriter = new \XMLWriter(); |
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if (!isset($config['domain'])) { |
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throw new Exception('Domain is not set.'); |
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} |
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$this->setDomain($config['domain']); |
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} |
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/** |
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* @return string |
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*/ |
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public function getDomain(): string |
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{ |
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return $this->domain; |
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} |
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/** |
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* @param string $domain |
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*/ |
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public function setDomain(string $domain): void |
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{ |
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$this->domain = $domain; |
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} |
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/** |
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* @return string |
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*/ |
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public function getCurrentSitemap(): string |
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{ |
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return $this->currentSitemap; |
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} |
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/** |
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* @param string $currentSitemap |
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*/ |
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public function setCurrentSitemap(string $currentSitemap): void |
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{ |
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$this->currentSitemap = $currentSitemap; |
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} |
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/** |
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* @param string $sitemap |
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* @param array $extensions |
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*/ |
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public function openSitemap(string $sitemap, array $extensions = []): void |
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{ |
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$this->setCurrentSitemap($sitemap); |
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$this->getXMLWriter()->openMemory(); |
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$this->getXMLWriter()->startDocument('1.0', 'UTF-8'); |
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$this->getXMLWriter()->setIndent(true); |
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$this->getXMLWriter()->startElement('urlset'); |
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$this->getXMLWriter()->writeAttribute('xmlns', Sitemap::SCHEMA); |
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foreach ($extensions as $extension => $urlset) { |
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$this->getXMLWriter()->writeAttribute('xmlns:' . $extension, $urlset); |
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} |
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$this->flushData(); |
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} |
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/** |
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* @return \XMLWriter |
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*/ |
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private function getXMLWriter(): \XMLWriter |
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{ |
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return $this->XMLWriter; |
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} |
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/** |
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* Save from buffer to file |
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* |
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* @return void |
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*/ |
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private function flushData(): void |
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{ |
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file_put_contents($this->getSitemapFileFullPath(), $this->getXMLWriter()->flush(true), FILE_APPEND); |
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} |
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/** |
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* @return string |
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*/ |
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private function getSitemapFileFullPath(): string |
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{ |
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return $this->getWorkDir() . DIRECTORY_SEPARATOR . $this->currentSitemap; |
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} |
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/** |
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* @return string |
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*/ |
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public function getWorkDir(): string |
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{ |
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return $this->workDir; |
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} |
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/** |
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* @param string $dir |
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*/ |
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public function setWorkDir(string $dir): void |
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{ |
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$this->workDir = $dir; |
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} |
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/** |
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* @throws \Exception |
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*/ |
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public function closeSitemap(): void |
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{ |
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$this->getXMLWriter()->endElement(); |
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$this->getXMLWriter()->endDocument(); |
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$this->flushData(); |
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$this->endFile(); |
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} |
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/** |
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* Remove whitespace chars from end of file (Google don't like them) |
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* |
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* @return void |
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* @throws Exception |
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*/ |
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private function endFile(): void |
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{ |
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$sitemapFile = fopen($this->getSitemapFileFullPath(), 'r+'); |
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if ($sitemapFile === false) { |
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throw new Exception("Unable to open file."); |
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} |
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fseek($sitemapFile, -1, SEEK_END); |
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$truncate = 0; |
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$length = $this->getSitemapSize(); |
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$end = false; |
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do { |
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$s = fread($sitemapFile, 1); |
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if (ctype_space($s)) { |
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$truncate++; |
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fseek($sitemapFile, -2, SEEK_CUR); |
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} else { |
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$end = true; |
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} |
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} while (!$end); |
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ftruncate($sitemapFile, $length - $truncate); |
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fclose($sitemapFile); |
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} |
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/** |
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* @return int |
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*/ |
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public function getSitemapSize(): int |
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{ |
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clearstatcache(true, $this->getSitemapFileFullPath()); |
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return file_exists($this->getSitemapFileFullPath()) ? filesize($this->getSitemapFileFullPath()) : 0; |
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} |
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/** |
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* @param array $element |
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*/ |
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public function addUrl(array $element): void |
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{ |
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foreach ($element as $el => $val) { |
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$this->addElement($el, $val); |
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} |
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$this->flushData(); |
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} |
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/** |
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* @param string $element |
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* @param $value |
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* @param string|null $namespace |
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*/ |
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private function addElement(string $element, $value, ?string $namespace = null): void |
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{ |
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if (!is_array($value)) { |
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$this->getXMLWriter()->writeElement(($namespace ? $namespace . ':' : '') . $element, (string) $value); |
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} else { |
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if (isset($value['_namespace'])) { |
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$this->addElement($value['_element'], $value[$value['_element']], $value['_namespace']); |
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} else { |
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$this->addElementArray($element, $value, $namespace); |
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} |
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} |
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} |
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/** |
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* @param string $element |
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* @param $value |
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* @param string|null $namespace |
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*/ |
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private function addElementArray(string $element, $value, ?string $namespace = null): void |
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{ |
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if (!$this->isAssoc($value)) { |
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if (!empty($value)) { |
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$this->addElementArrayNonAssoc($element, $value, $namespace); |
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} else { |
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$this->getXMLWriter()->writeElement(($namespace ? $namespace . ':' : '') . $element); |
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} |
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} else { |
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$this->addElementArrayAssoc($element, $value, $namespace); |
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} |
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} |
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private function addElementArrayAssoc(string $element, $value, ?string $namespace = null): void |
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{ |
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$this->getXMLWriter()->startElement(($namespace ? $namespace . ':' : '') . $element); |
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if (isset($value['_attributes'])) { |
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foreach ($value['_attributes'] as $attribute => $val) { |
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$this->getXMLWriter()->writeAttribute($attribute, $val); |
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} |
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if (isset($value['_value'])) { |
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if (is_array($value['_value'])) { |
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foreach ($value['_value'] as $el => $val) { |
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$this->addElement($el, $val); |
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} |
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} else { |
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$this->getXMLWriter()->text((string) $value['_value']); |
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} |
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} |
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} else { |
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foreach ($value as $el => $val) { |
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if (is_array($val)) { |
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$this->addElement($el, $val, $namespace); |
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} else { |
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$this->getXMLWriter()->writeElement(($namespace ? $namespace . ':' : '') . $el, (string) $val); |
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} |
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} |
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} |
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$this->getXMLWriter()->endElement(); |
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} |
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/** |
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* @param string $element |
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* @param $value |
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* @param string|null $namespace |
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*/ |
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private function addElementArrayNonAssoc(string $element, $value, ?string $namespace = null): void |
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{ |
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foreach ($value as $val) { |
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$this->addElement($element, $val, $namespace); |
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} |
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} |
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/** |
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* @param string $sitemap |
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*/ |
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public function openSitemapIndex(string $sitemap): void |
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{ |
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$this->setCurrentSitemap($sitemap); |
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$this->getXMLWriter()->openMemory(); |
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$this->getXMLWriter()->startDocument('1.0', 'UTF-8'); |
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$this->getXMLWriter()->setIndent(true); |
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$this->getXMLWriter()->startElement('sitemapindex'); |
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$this->getXMLWriter()->writeAttribute('xmlns', Sitemap::SCHEMA); |
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$this->flushData(); |
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} |
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/** |
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* @throws \Exception |
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*/ |
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public function closeSitemapIndex(): void |
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{ |
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$this->getXMLWriter()->endElement(); |
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$this->getXMLWriter()->endDocument(); |
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$this->flushData(); |
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$this->endFile(); |
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} |
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/** |
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* @param string $sitemap |
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* @param string|null $lastmod |
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*/ |
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public function addSitemap(string $sitemap, string $lastmod = null): void |
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{ |
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$this->getXMLWriter()->startElement('sitemap'); |
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$this->getXMLWriter()->writeElement('loc', $sitemap); |
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if (isset($lastmod)) { |
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$this->getXMLWriter()->writeElement('lastmod', $lastmod); |
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} |
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$this->getXMLWriter()->endElement(); |
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$this->flushData(); |
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} |
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} |
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