diff options
Diffstat (limited to 'vendor/miniflux/picofeed/lib/PicoFeed/Parser/XmlParser.php')
| -rw-r--r-- | vendor/miniflux/picofeed/lib/PicoFeed/Parser/XmlParser.php | 246 |
1 files changed, 0 insertions, 246 deletions
diff --git a/vendor/miniflux/picofeed/lib/PicoFeed/Parser/XmlParser.php b/vendor/miniflux/picofeed/lib/PicoFeed/Parser/XmlParser.php deleted file mode 100644 index ea42949f..00000000 --- a/vendor/miniflux/picofeed/lib/PicoFeed/Parser/XmlParser.php +++ /dev/null @@ -1,246 +0,0 @@ -<?php - -namespace PicoFeed\Parser; - -use DOMDocument; -use SimpleXMLElement; -use ZendXml\Exception\RuntimeException; -use ZendXml\Security; - -/** - * XML parser class. - * - * Checks for XML eXternal Entity (XXE) and XML Entity Expansion (XEE) attacks on XML documents - * - * @package PicoFeed\Parser - * @author Frederic Guillot - */ -class XmlParser -{ - /** - * Get a SimpleXmlElement instance or return false. - * - * @static - * @param string $input XML content - * @return mixed - */ - public static function getSimpleXml($input) - { - return self::scan($input); - } - - /** - * Get a DomDocument instance or return false. - * - * @static - * @param string $input XML content - * @return DOMDocument - */ - public static function getDomDocument($input) - { - if (empty($input)) { - return false; - } - - $dom = self::scan($input, new DOMDocument()); - - // The document is empty, there is probably some parsing errors - if ($dom && $dom->childNodes->length === 0) { - return false; - } - - return $dom; - } - - /** - * Small wrapper around ZendXml to turn their exceptions into PicoFeed exceptions - * - * @static - * @access private - * @param string $input - * @param DOMDocument $dom - * @throws XmlEntityException - * @return SimpleXMLElement|DomDocument|boolean - */ - private static function scan($input, $dom = null) - { - try { - return Security::scan($input, $dom); - } catch(RuntimeException $e) { - throw new XmlEntityException($e->getMessage()); - } - } - - /** - * Load HTML document by using a DomDocument instance or return false on failure. - * - * @static - * @access public - * @param string $input XML content - * @return DOMDocument - */ - public static function getHtmlDocument($input) - { - $dom = new DomDocument(); - - if (empty($input)) { - return $dom; - } - - libxml_use_internal_errors(true); - - if (version_compare(PHP_VERSION, '5.4.0', '>=')) { - $dom->loadHTML($input, LIBXML_NONET); - } else { - $dom->loadHTML($input); - } - - return $dom; - } - - /** - * Convert a HTML document to XML. - * - * @static - * @access public - * @param string $html HTML document - * @return string - */ - public static function htmlToXml($html) - { - $dom = self::getHtmlDocument('<?xml version="1.0" encoding="UTF-8">'.$html); - return $dom->saveXML($dom->getElementsByTagName('body')->item(0)); - } - - /** - * Get XML parser errors. - * - * @static - * @access public - * @return string - */ - public static function getErrors() - { - $errors = array(); - - foreach (libxml_get_errors() as $error) { - $errors[] = sprintf('XML error: %s (Line: %d - Column: %d - Code: %d)', - $error->message, - $error->line, - $error->column, - $error->code - ); - } - - return implode(', ', $errors); - } - - /** - * Get the encoding from a xml tag. - * - * @static - * @access public - * @param string $data Input data - * @return string - */ - public static function getEncodingFromXmlTag($data) - { - $encoding = ''; - - if (strpos($data, '<?xml') !== false) { - $data = substr($data, 0, strrpos($data, '?>')); - $data = str_replace("'", '"', $data); - - $p1 = strpos($data, 'encoding='); - $p2 = strpos($data, '"', $p1 + 10); - - if ($p1 !== false && $p2 !== false) { - $encoding = substr($data, $p1 + 10, $p2 - $p1 - 10); - $encoding = strtolower($encoding); - } - } - - return $encoding; - } - - /** - * Get the charset from a meta tag. - * - * @static - * @access public - * @param string $data Input data - * @return string - */ - public static function getEncodingFromMetaTag($data) - { - $encoding = ''; - - if (preg_match('/<meta.*?charset\s*=\s*["\']?\s*([^"\'\s\/>;]+)/i', $data, $match) === 1) { - $encoding = strtolower($match[1]); - } - - return $encoding; - } - - /** - * Rewrite XPath query to use namespace-uri and local-name derived from prefix. - * - * @static - * @access public - * @param string $query XPath query - * @param array $ns Prefix to namespace URI mapping - * @return string - */ - public static function replaceXPathPrefixWithNamespaceURI($query, array $ns) - { - return preg_replace_callback('/([A-Z0-9]+):([A-Z0-9]+)/iu', function ($matches) use ($ns) { - // don't try to map the special prefix XML - if (strtolower($matches[1]) === 'xml') { - return $matches[0]; - } - - return '*[namespace-uri()="'.$ns[$matches[1]].'" and local-name()="'.$matches[2].'"]'; - }, - $query); - } - - /** - * Get the result elements of a XPath query. - * - * @static - * @access public - * @param SimpleXMLElement $xml XML element - * @param string $query XPath query - * @param array $ns Prefix to namespace URI mapping - * @return SimpleXMLElement[] - */ - public static function getXPathResult(SimpleXMLElement $xml, $query, array $ns = array()) - { - if (!empty($ns)) { - $query = static::replaceXPathPrefixWithNamespaceURI($query, $ns); - } - - return $xml->xpath($query); - } - - /** - * Get the first Xpath result or SimpleXMLElement value - * - * @static - * @access public - * @param mixed $value - * @return string - */ - public static function getValue($value) - { - $result = ''; - - if (is_array($value) && count($value) > 0) { - $result = (string) $value[0]; - } elseif (is_a($value, 'SimpleXMLElement')) { - return $result = (string) $value; - } - - return trim($result); - } -} |