X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FUtil%2FXML.php;h=c115e4d0de37c354f1fcfc95189025ebfb96d0b7;hb=990bbea19dca7057bc0c20a90a6b5b321f8a02ef;hp=a3cf758da5871a5c3b4952156eae9a4ce71af99a;hpb=317d51fd53db04c37a855bbaebb3d524a16de8df;p=friendica.git

diff --git a/src/Util/XML.php b/src/Util/XML.php
index a3cf758da5..c115e4d0de 100644
--- a/src/Util/XML.php
+++ b/src/Util/XML.php
@@ -4,7 +4,8 @@
  */
 namespace Friendica\Util;
 
-use DomXPath;
+use Friendica\Core\Logger;
+use DOMXPath;
 use SimpleXMLElement;
 
 /**
@@ -23,7 +24,7 @@ class XML
 	 *
 	 * @return string The created XML
 	 */
-	public static function fromArray($array, &$xml, $remove_header = false, $namespaces = array(), $root = true)
+	public static function fromArray($array, &$xml, $remove_header = false, $namespaces = [], $root = true)
 	{
 		if ($root) {
 			foreach ($array as $key => $value) {
@@ -35,7 +36,7 @@ class XML
 					$root = new SimpleXMLElement("<".$key."/>");
 					self::fromArray($value, $root, $remove_header, $namespaces, false);
 				} else {
-					$root = new SimpleXMLElement("<".$key.">".xmlify($value)."</".$key.">");
+					$root = new SimpleXMLElement("<".$key.">".self::escape($value)."</".$key.">");
 				}
 
 				$dom = dom_import_simplexml($root)->ownerDocument;
@@ -52,6 +53,7 @@ class XML
 			}
 		}
 
+		$element = null;
 		foreach ($array as $key => $value) {
 			if (!isset($element) && isset($xml)) {
 				$element = $xml;
@@ -102,7 +104,7 @@ class XML
 			}
 
 			if (!is_array($value)) {
-				$element = $xml->addChild($key, xmlify($value), $namespace);
+				$element = $xml->addChild($key, self::escape($value), $namespace);
 			} elseif (is_array($value)) {
 				$element = $xml->addChild($key, null, $namespace);
 				self::fromArray($value, $element, $remove_header, $namespaces, false);
@@ -121,7 +123,7 @@ class XML
 	public static function copy(&$source, &$target, $elementname)
 	{
 		if (count($source->children()) == 0) {
-			$target->addChild($elementname, xmlify($source));
+			$target->addChild($elementname, self::escape($source));
 		} else {
 			$child = $target->addChild($elementname);
 			foreach ($source->children() as $childfield => $childentry) {
@@ -140,13 +142,13 @@ class XML
 	 *
 	 * @return object XML element object
 	 */
-	public static function createElement($doc, $element, $value = "", $attributes = array())
+	public static function createElement($doc, $element, $value = "", $attributes = [])
 	{
-		$element = $doc->createElement($element, xmlify($value));
+		$element = $doc->createElement($element, self::escape($value));
 
 		foreach ($attributes as $key => $value) {
 			$attribute = $doc->createAttribute($key);
-			$attribute->value = xmlify($value);
+			$attribute->value = self::escape($value);
 			$element->appendChild($attribute);
 		}
 		return $element;
@@ -162,7 +164,7 @@ class XML
 	 * @param array  $attributes array containing the attributes
 	 * @return void
 	 */
-	public static function addElement($doc, $parent, $element, $value = "", $attributes = array())
+	public static function addElement($doc, $parent, $element, $value = "", $attributes = [])
 	{
 		$element = self::createElement($doc, $element, $value, $attributes);
 		$parent->appendChild($element);
@@ -176,7 +178,7 @@ class XML
 	 * @param integer $recursion_depth recursion counter for internal use - default 0
 	 *                                 internal use, recursion counter
 	 *
-	 * @return array | sring The array from the xml element or the string
+	 * @return array | string The array from the xml element or the string
 	 */
 	public static function elementToArray($xml_element, &$recursion_depth = 0)
 	{
@@ -185,16 +187,17 @@ class XML
 			return(null);
 		}
 
+		$xml_element_copy = '';
 		if (!is_string($xml_element)
 			&& !is_array($xml_element)
 			&& (get_class($xml_element) == 'SimpleXMLElement')
 		) {
-				$xml_element_copy = $xml_element;
-				$xml_element = get_object_vars($xml_element);
+			$xml_element_copy = $xml_element;
+			$xml_element = get_object_vars($xml_element);
 		}
 
 		if (is_array($xml_element)) {
-			$result_array = array();
+			$result_array = [];
 			if (count($xml_element) <= 0) {
 				return (trim(strval($xml_element_copy)));
 			}
@@ -207,9 +210,9 @@ class XML
 
 			if ($recursion_depth == 0) {
 				$temp_array = $result_array;
-				$result_array = array(
+				$result_array = [
 					strtolower($xml_element_copy->getName()) => $temp_array,
-				);
+				];
 			}
 
 			return ($result_array);
@@ -242,12 +245,12 @@ class XML
 	public static function toArray($contents, $namespaces = true, $get_attributes = 1, $priority = 'attribute')
 	{
 		if (!$contents) {
-			return array();
+			return [];
 		}
 
 		if (!function_exists('xml_parser_create')) {
-			logger('Xml::toArray: parser function missing');
-			return array();
+			Logger::log('Xml::toArray: parser function missing');
+			return [];
 		}
 
 
@@ -261,8 +264,8 @@ class XML
 		}
 
 		if (! $parser) {
-			logger('Xml::toArray: xml_parser_create: no resource');
-			return array();
+			Logger::log('Xml::toArray: xml_parser_create: no resource');
+			return [];
 		}
 
 		xml_parser_set_option($parser, XML_OPTION_TARGET_ENCODING, "UTF-8");
@@ -273,33 +276,33 @@ class XML
 		@xml_parser_free($parser);
 
 		if (! $xml_values) {
-			logger('Xml::toArray: libxml: parse error: ' . $contents, LOGGER_DATA);
+			Logger::log('Xml::toArray: libxml: parse error: ' . $contents, Logger::DATA);
 			foreach (libxml_get_errors() as $err) {
-				logger('libxml: parse: ' . $err->code . " at " . $err->line . ":" . $err->column . " : " . $err->message, LOGGER_DATA);
+				Logger::log('libxml: parse: ' . $err->code . " at " . $err->line . ":" . $err->column . " : " . $err->message, Logger::DATA);
 			}
 			libxml_clear_errors();
 			return;
 		}
 
 		//Initializations
-		$xml_array = array();
-		$parents = array();
-		$opened_tags = array();
-		$arr = array();
+		$xml_array = [];
+		$parents = [];
+		$opened_tags = [];
+		$arr = [];
 
 		$current = &$xml_array; // Reference
 
 		// Go through the tags.
-		$repeated_tag_index = array(); // Multiple tags with same name will be turned into an array
+		$repeated_tag_index = []; // Multiple tags with same name will be turned into an array
 		foreach ($xml_values as $data) {
-			unset($attributes, $value); // Remove existing values, or there will be trouble
+			$tag        = $data['tag'];
+			$type       = $data['type'];
+			$level      = $data['level'];
+			$attributes = isset($data['attributes']) ? $data['attributes'] : null;
+			$value      = isset($data['value']) ? $data['value'] : null;
 
-			// This command will extract these variables into the foreach scope
-			// tag(string), type(string), level(int), attributes(array).
-			extract($data); // We could use the array by itself, but this cooler.
-
-			$result = array();
-			$attributes_data = array();
+			$result = [];
+			$attributes_data = [];
 
 			if (isset($value)) {
 				if ($priority == 'tag') {
@@ -344,7 +347,7 @@ class XML
 						$current[$tag][$repeated_tag_index[$tag.'_'.$level]] = $result;
 						$repeated_tag_index[$tag.'_'.$level]++;
 					} else { // This section will make the value an array if multiple tags with the same name appear together
-						$current[$tag] = array($current[$tag], $result); // This will combine the existing item and the new item together to make an array
+						$current[$tag] = [$current[$tag], $result]; // This will combine the existing item and the new item together to make an array
 						$repeated_tag_index[$tag.'_'.$level] = 2;
 
 						if (isset($current[$tag.'_attr'])) { // The attribute of the last(0th) tag must be moved as well
@@ -374,7 +377,7 @@ class XML
 						}
 						$repeated_tag_index[$tag.'_'.$level]++;
 					} else { // If it is not an array...
-						$current[$tag] = array($current[$tag], $result); //...Make it an array using using the existing value and the new value
+						$current[$tag] = [$current[$tag], $result]; //...Make it an array using using the existing value and the new value
 						$repeated_tag_index[$tag.'_'.$level] = 1;
 						if ($priority == 'tag' and $get_attributes) {
 							if (isset($current[$tag.'_attr'])) { // The attribute of the last(0th) tag must be moved as well
@@ -407,10 +410,95 @@ class XML
 	 */
 	public static function deleteNode(&$doc, $node)
 	{
-		$xpath = new DomXPath($doc);
+		$xpath = new DOMXPath($doc);
 		$list = $xpath->query("//".$node);
 		foreach ($list as $child) {
 			$child->parentNode->removeChild($child);
 		}
 	}
+
+	public static function parseString($s, $strict = true)
+	{
+		// the "strict" parameter is deactivated
+		libxml_use_internal_errors(true);
+
+		$x = @simplexml_load_string($s);
+		if (!$x) {
+			Logger::log('libxml: parse: error: ' . $s, Logger::DATA);
+			foreach (libxml_get_errors() as $err) {
+				Logger::log('libxml: parse: ' . $err->code." at ".$err->line.":".$err->column." : ".$err->message, Logger::DATA);
+			}
+			libxml_clear_errors();
+		}
+		return $x;
+	}
+
+	public static function getFirstNodeValue($xpath, $element, $context = null)
+	{
+		$result = $xpath->evaluate($element, $context);
+		if (!is_object($result)) {
+			return '';
+		}
+
+		$first_item = $result->item(0);
+		if (!is_object($first_item)) {
+			return '';
+		}
+
+		return $first_item->nodeValue;
+	}
+
+	public static function getFirstAttributes($xpath, $element, $context = null)
+	{
+		$result = $xpath->query($element, $context);
+		if (!is_object($result)) {
+			return false;
+		}
+
+		$first_item = $result->item(0);
+		if (!is_object($first_item)) {
+			return false;
+		}
+
+		return $first_item->attributes;
+	}
+
+	/**
+	 * escape text ($str) for XML transport
+	 * @param string $str
+	 * @return string Escaped text.
+	 */
+	public static function escape($str)
+	{
+		$buffer = htmlspecialchars($str, ENT_QUOTES, "UTF-8");
+		$buffer = trim($buffer);
+
+		return $buffer;
+	}
+
+	/**
+	 * undo an escape
+	 * @param string $s xml escaped text
+	 * @return string unescaped text
+	 */
+	public static function unescape($s)
+	{
+		$ret = htmlspecialchars_decode($s, ENT_QUOTES);
+		return $ret;
+	}
+
+	/**
+	 * apply escape() to all values of array $val, recursively
+	 * @param array $val
+	 * @return array
+	 */
+	public static function arrayEscape($val)
+	{
+		if (is_bool($val)) {
+			return $val?"true":"false";
+		} elseif (is_array($val)) {
+			return array_map('XML::arrayEscape', $val);
+		}
+		return self::escape((string) $val);
+	}
 }