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<?php |
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declare(strict_types=1); |
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/* |
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* This file is part of the TYPO3 CMS project. |
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* |
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* It is free software; you can redistribute it and/or modify it under |
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* the terms of the GNU General Public License, either version 2 |
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* of the License, or any later version. |
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* |
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* For the full copyright and license information, please read the |
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* LICENSE.txt file that was distributed with this source code. |
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* |
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* The TYPO3 project - inspiring people to share! |
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*/ |
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namespace TYPO3\CMS\Extensionmanager\Parser; |
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use TYPO3\CMS\Extensionmanager\Exception\ExtensionManagerException; |
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/** |
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* Parser for TYPO3's extension.xml file. |
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* |
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* Depends on PHP ext/xml which is a required composer php extension |
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* and enabled in PHP by default since a long time. |
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* |
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* @internal This class is a specific ExtensionManager implementation and is not part of the Public TYPO3 API. |
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*/ |
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class ExtensionXmlParser implements \SplSubject |
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{ |
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/** |
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* Keeps list of attached observers. |
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* |
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* @var \SplObserver[] |
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*/ |
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protected array $observers = []; |
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/** |
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* Keeps current data of element to process. |
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*/ |
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protected string $elementData = ''; |
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/** |
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* Parsed property data |
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*/ |
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protected string $authorcompany = ''; |
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protected string $authoremail = ''; |
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protected string $authorname = ''; |
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protected string $category = ''; |
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protected string $dependencies = ''; |
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protected string $description = ''; |
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protected int $extensionDownloadCounter = 0; |
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protected string $extensionKey = ''; |
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protected int $lastuploaddate = 0; |
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protected string $ownerusername = ''; |
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protected int $reviewstate = 0; |
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protected string $state = ''; |
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protected string $t3xfilemd5 = ''; |
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protected string $title = ''; |
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protected string $uploadcomment = ''; |
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protected string $version = ''; |
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protected int $versionDownloadCounter = 0; |
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protected string $documentationLink = ''; |
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protected string $distributionImage = ''; |
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public function __construct() |
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{ |
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if (!extension_loaded('xml')) { |
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throw new \RuntimeException('PHP extension "xml" not loaded', 1622148496); |
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} |
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} |
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/** |
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* Method parses an extensions.xml file. |
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* |
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* @param string $file GZIP stream resource |
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* @throws ExtensionManagerException in case of parse errors |
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*/ |
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public function parseXml($file): void |
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{ |
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if (PHP_MAJOR_VERSION < 8) { |
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// @deprecated will be removed as soon as the minimum version of TYPO3 is 8.0 |
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$this->parseWithLegacyResource($file); |
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return; |
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} |
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/** @var \XMLParser $parser */ |
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$parser = xml_parser_create(); |
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xml_set_object($parser, $this); |
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// keep original character case of XML document |
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xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, 0); |
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xml_parser_set_option($parser, XML_OPTION_SKIP_WHITE, 0); |
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xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, 'utf-8'); |
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xml_set_element_handler($parser, [$this, 'startElement'], [$this, 'endElement']); |
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xml_set_character_data_handler($parser, [$this, 'characterData']); |
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if (!($fp = fopen($file, 'r'))) { |
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throw $this->createUnableToOpenFileResourceException($file); |
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} |
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while ($data = fread($fp, 4096)) { |
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if (!xml_parse($parser, $data, feof($fp))) { |
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throw $this->createXmlErrorException($parser, $file); |
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} |
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} |
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xml_parser_free($parser); |
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} |
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/** |
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* @throws ExtensionManagerException |
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* @internal |
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*/ |
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private function parseWithLegacyResource(string $file): void |
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{ |
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// Store the xml parser resource in when run with PHP <= 7.4 |
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// @deprecated will be removed as soon as the minimum version of TYPO3 is 8.0 |
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$legacyXmlParserResource = xml_parser_create(); |
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xml_set_object($legacyXmlParserResource, $this); |
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if ($legacyXmlParserResource === null) { |
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throw new ExtensionManagerException('Unable to create XML parser.', 1342640663); |
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} |
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/** @var resource $parser */ |
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$parser = $legacyXmlParserResource; |
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// Disables the functionality to allow external entities to be loaded when parsing the XML, must be kept |
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$previousValueOfEntityLoader = libxml_disable_entity_loader(true); |
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// keep original character case of XML document |
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xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, 0); |
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xml_parser_set_option($parser, XML_OPTION_SKIP_WHITE, 0); |
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xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, 'utf-8'); |
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xml_set_element_handler($parser, [$this, 'startElement'], [$this, 'endElement']); |
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xml_set_character_data_handler($parser, [$this, 'characterData']); |
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if (!($fp = fopen($file, 'r'))) { |
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throw $this->createUnableToOpenFileResourceException($file); |
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} |
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while ($data = fread($fp, 4096)) { |
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if (!xml_parse($parser, $data, feof($fp))) { |
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throw $this->createXmlErrorException($parser, $file); |
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} |
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} |
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libxml_disable_entity_loader($previousValueOfEntityLoader); |
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xml_parser_free($parser); |
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} |
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private function createUnableToOpenFileResourceException(string $file): ExtensionManagerException |
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{ |
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return new ExtensionManagerException(sprintf('Unable to open file resource %s.', $file), 1342640689); |
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} |
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private function createXmlErrorException($parser, string $file): ExtensionManagerException |
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{ |
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return new ExtensionManagerException( |
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sprintf( |
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'XML error %s in line %u of file resource %s.', |
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xml_error_string(xml_get_error_code($parser)), |
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xml_get_current_line_number($parser), |
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$file |
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), |
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1342640703 |
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); |
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} |
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/** |
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* Method is invoked when parser accesses start tag of an element. |
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* |
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* @param resource $parser parser resource |
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* @param string $elementName element name at parser's current position |
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* @param array $attrs array of an element's attributes if available |
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*/ |
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protected function startElement($parser, $elementName, $attrs) |
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{ |
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switch ($elementName) { |
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case 'extension': |
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$this->extensionKey = $attrs['extensionkey']; |
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break; |
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case 'version': |
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$this->version = $attrs['version']; |
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break; |
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default: |
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$this->elementData = ''; |
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} |
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} |
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/** |
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* Method is invoked when parser accesses end tag of an element. |
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* |
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* @param resource $parser parser resource |
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* @param string $elementName Element name at parser's current position |
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*/ |
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protected function endElement($parser, $elementName) |
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{ |
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switch ($elementName) { |
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case 'extension': |
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$this->resetProperties(true); |
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break; |
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case 'version': |
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$this->notify(); |
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$this->resetProperties(); |
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break; |
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case 'downloadcounter': |
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// downloadcounter can be a child node of extension or version |
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if ($this->version === '') { |
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$this->extensionDownloadCounter = (int)$this->elementData; |
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} else { |
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$this->versionDownloadCounter = (int)$this->elementData; |
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} |
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break; |
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case 'title': |
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$this->title = $this->elementData; |
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break; |
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case 'description': |
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$this->description = $this->elementData; |
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break; |
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case 'state': |
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$this->state = $this->elementData; |
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break; |
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case 'reviewstate': |
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$this->reviewstate = (int)$this->elementData; |
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break; |
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case 'category': |
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$this->category = $this->elementData; |
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break; |
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case 'lastuploaddate': |
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$this->lastuploaddate = (int)$this->elementData; |
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break; |
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case 'uploadcomment': |
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$this->uploadcomment = $this->elementData; |
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break; |
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case 'dependencies': |
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$newDependencies = []; |
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$dependenciesArray = unserialize($this->elementData, ['allowed_classes' => false]); |
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if (is_array($dependenciesArray)) { |
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foreach ($dependenciesArray as $version) { |
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if (!empty($version['kind']) && !empty($version['extensionKey'])) { |
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$newDependencies[$version['kind']][$version['extensionKey']] = $version['versionRange']; |
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} |
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} |
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} |
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$this->dependencies = serialize($newDependencies); |
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break; |
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case 'authorname': |
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$this->authorname = $this->elementData; |
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break; |
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case 'authoremail': |
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$this->authoremail = $this->elementData; |
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break; |
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case 'authorcompany': |
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$this->authorcompany = $this->elementData; |
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break; |
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case 'ownerusername': |
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$this->ownerusername = $this->elementData; |
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break; |
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case 't3xfilemd5': |
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$this->t3xfilemd5 = $this->elementData; |
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break; |
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case 'documentation_link': |
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$this->documentationLink = $this->elementData; |
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break; |
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case 'distributionImage': |
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if (preg_match('/^https:\/\/extensions\.typo3\.org[a-zA-Z0-9._\/]+Distribution\.png$/', $this->elementData)) { |
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$this->distributionImage = $this->elementData; |
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} |
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break; |
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} |
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} |
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/** |
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* Method resets version class properties. |
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* |
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* @param bool $resetAll If TRUE, additionally extension properties are reset |
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*/ |
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protected function resetProperties($resetAll = false): void |
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{ |
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// Resetting at least class property "version" is mandatory as we need to do some magic in |
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// regards to an extension's and version's child node "downloadcounter" |
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$this->version = $this->authorcompany = $this->authorname = $this->authoremail = $this->category = $this->dependencies = $this->state = ''; |
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$this->description = $this->ownerusername = $this->t3xfilemd5 = $this->title = $this->uploadcomment = $this->documentationLink = $this->distributionImage = ''; |
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$this->lastuploaddate = $this->reviewstate = $this->versionDownloadCounter = 0; |
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if ($resetAll) { |
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$this->extensionKey = ''; |
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$this->extensionDownloadCounter = 0; |
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} |
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} |
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/** |
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* Method is invoked when parser accesses any character other than elements. |
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* |
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* @param resource|\XmlParser $parser XmlParser with PHP >= 8 |
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* @param string $data An element's value |
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*/ |
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protected function characterData($parser, string $data) |
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{ |
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$this->elementData .= $data; |
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} |
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/** |
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* Method attaches an observer. |
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* |
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* @param \SplObserver $observer an observer to attach |
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* @see detach() |
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* @see notify() |
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*/ |
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public function attach(\SplObserver $observer) |
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{ |
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$this->observers[] = $observer; |
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} |
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311
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/** |
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* Method detaches an attached observer |
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* |
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* @param \SplObserver $observer an observer to detach |
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*/ |
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public function detach(\SplObserver $observer) |
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{ |
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$key = array_search($observer, $this->observers, true); |
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if ($key !== false) { |
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unset($this->observers[$key]); |
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} |
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} |
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324
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/** |
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* Method notifies attached observers. |
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*/ |
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public function notify() |
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{ |
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foreach ($this->observers as $observer) { |
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$observer->update($this); |
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} |
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} |
333
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334
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/** |
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* Returns download number sum of all extension's versions. |
336
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*/ |
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public function getAlldownloadcounter(): int |
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{ |
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return $this->extensionDownloadCounter; |
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} |
341
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342
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/** |
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* Returns company name of extension author. |
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*/ |
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public function getAuthorcompany(): string |
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{ |
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return $this->authorcompany; |
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} |
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|
350
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/** |
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* Returns e-mail address of extension author. |
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*/ |
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public function getAuthoremail(): string |
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{ |
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return $this->authoremail; |
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} |
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358
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/** |
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* Returns name of extension author. |
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*/ |
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public function getAuthorname(): string |
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{ |
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return $this->authorname; |
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} |
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|
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/** |
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* Returns category of an extension. |
368
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*/ |
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public function getCategory(): string |
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{ |
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return $this->category; |
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} |
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/** |
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|
* Returns dependencies of an extension's version as a serialized string |
376
|
|
|
*/ |
377
|
|
|
public function getDependencies(): string |
378
|
|
|
{ |
379
|
|
|
return $this->dependencies; |
380
|
|
|
} |
381
|
|
|
|
382
|
|
|
/** |
383
|
|
|
* Returns description of an extension's version. |
384
|
|
|
*/ |
385
|
|
|
public function getDescription(): string |
386
|
|
|
{ |
387
|
|
|
return $this->description; |
388
|
|
|
} |
389
|
|
|
|
390
|
|
|
/** |
391
|
|
|
* Returns download number of an extension's version. |
392
|
|
|
*/ |
393
|
|
|
public function getDownloadcounter(): int |
394
|
|
|
{ |
395
|
|
|
return $this->versionDownloadCounter; |
396
|
|
|
} |
397
|
|
|
|
398
|
|
|
/** |
399
|
|
|
* Returns key of an extension. |
400
|
|
|
*/ |
401
|
|
|
public function getExtkey(): string |
402
|
|
|
{ |
403
|
|
|
return $this->extensionKey; |
404
|
|
|
} |
405
|
|
|
|
406
|
|
|
/** |
407
|
|
|
* Returns last uploaddate of an extension's version. |
408
|
|
|
*/ |
409
|
|
|
public function getLastuploaddate(): int |
410
|
|
|
{ |
411
|
|
|
return $this->lastuploaddate; |
412
|
|
|
} |
413
|
|
|
|
414
|
|
|
/** |
415
|
|
|
* Returns username of extension owner. |
416
|
|
|
*/ |
417
|
|
|
public function getOwnerusername(): string |
418
|
|
|
{ |
419
|
|
|
return $this->ownerusername; |
420
|
|
|
} |
421
|
|
|
|
422
|
|
|
/** |
423
|
|
|
* Returns review state of an extension's version. |
424
|
|
|
*/ |
425
|
|
|
public function getReviewstate(): int |
426
|
|
|
{ |
427
|
|
|
return $this->reviewstate; |
428
|
|
|
} |
429
|
|
|
|
430
|
|
|
/** |
431
|
|
|
* Returns state of an extension's version. |
432
|
|
|
*/ |
433
|
|
|
public function getState(): string |
434
|
|
|
{ |
435
|
|
|
return $this->state; |
436
|
|
|
} |
437
|
|
|
|
438
|
|
|
/** |
439
|
|
|
* Returns t3x file hash of an extension's version. |
440
|
|
|
*/ |
441
|
|
|
public function getT3xfilemd5(): string |
442
|
|
|
{ |
443
|
|
|
return $this->t3xfilemd5; |
444
|
|
|
} |
445
|
|
|
|
446
|
|
|
/** |
447
|
|
|
* Returns title of an extension's version. |
448
|
|
|
*/ |
449
|
|
|
public function getTitle(): string |
450
|
|
|
{ |
451
|
|
|
return $this->title; |
452
|
|
|
} |
453
|
|
|
|
454
|
|
|
/** |
455
|
|
|
* Returns extension upload comment. |
456
|
|
|
*/ |
457
|
|
|
public function getUploadcomment(): string |
458
|
|
|
{ |
459
|
|
|
return $this->uploadcomment; |
460
|
|
|
} |
461
|
|
|
|
462
|
|
|
/** |
463
|
|
|
* Returns version number as unparsed string. |
464
|
|
|
*/ |
465
|
|
|
public function getVersion(): string |
466
|
|
|
{ |
467
|
|
|
return $this->version; |
468
|
|
|
} |
469
|
|
|
|
470
|
|
|
/** |
471
|
|
|
* Returns documentation link. |
472
|
|
|
*/ |
473
|
|
|
public function getDocumentationLink(): string |
474
|
|
|
{ |
475
|
|
|
return $this->documentationLink; |
476
|
|
|
} |
477
|
|
|
|
478
|
|
|
/** |
479
|
|
|
* Returns distribution image. |
480
|
|
|
*/ |
481
|
|
|
public function getDistributionImage(): string |
482
|
|
|
{ |
483
|
|
|
return $this->distributionImage; |
484
|
|
|
} |
485
|
|
|
} |
486
|
|
|
|