1 files changed, 131 insertions, 0 deletions
diff --git a/engine/classes/ElggXMLElement.php b/engine/classes/ElggXMLElement.php
new file mode 100644
index 000000000..cbd3fc5ce
--- /dev/null
+++ b/engine/classes/ElggXMLElement.php
@@ -0,0 +1,131 @@
+<?php
+/**
+ * A parser for XML that uses SimpleXMLElement
+ *
+ * @package    Elgg.Core
+ * @subpackage XML
+ */
+class ElggXMLElement {
+	/**
+	 * @var SimpleXMLElement
+	 */
+	private $_element;
+
+	/**
+	 * Creates an ElggXMLParser from a string or existing SimpleXMLElement
+	 * 
+	 * @param string|SimpleXMLElement $xml The XML to parse
+	 */
+	public function __construct($xml) {
+		if ($xml instanceof SimpleXMLElement) {
+			$this->_element = $xml;
+		} else {
+			// do not load entities
+			$disable_load_entities = libxml_disable_entity_loader(true);
+
+			$this->_element = new SimpleXMLElement($xml);
+
+			libxml_disable_entity_loader($disable_load_entities);
+		}
+	}
+
+	/**
+	 * @return string The name of the element
+	 */
+	public function getName() {
+		return $this->_element->getName();
+	}
+
+	/**
+	 * @return string[] The attributes
+	 */
+	public function getAttributes() {
+		//include namespace declarations as attributes
+		$xmlnsRaw = $this->_element->getNamespaces();
+		$xmlns = array();
+		foreach ($xmlnsRaw as $key => $val) {
+			$label = 'xmlns' . ($key ? ":$key" : $key);
+			$xmlns[$label] = $val;
+		}
+		//get attributes and merge with namespaces
+		$attrRaw = $this->_element->attributes();
+		$attr = array();
+		foreach ($attrRaw as $key => $val) {
+			$attr[$key] = $val;
+		}
+		$attr = array_merge((array) $xmlns, (array) $attr);
+		$result = array();
+		foreach ($attr as $key => $val) {
+			$result[$key] = (string) $val;
+		}
+		return $result;
+	}
+
+	/**
+	 * @return string CData
+	 */
+	public function getContent() {
+		return (string) $this->_element;
+	}
+
+	/**
+	 * @return ElggXMLElement[] Child elements
+	 */
+	public function getChildren() {
+		$children = $this->_element->children();
+		$result = array();
+		foreach ($children as $val) {
+			$result[] = new ElggXMLElement($val);
+		}
+
+		return $result;
+	}
+
+	/**
+	 * Override ->
+	 * 
+	 * @param string $name Property name
+	 * @return mixed
+	 */
+	function __get($name) {
+		switch ($name) {
+			case 'name':
+				return $this->getName();
+				break;
+			case 'attributes':
+				return $this->getAttributes();
+				break;
+			case 'content':
+				return $this->getContent();
+				break;
+			case 'children':
+				return $this->getChildren();
+				break;
+		}
+		return null;
+	}
+
+	/**
+	 * Override isset
+	 * 
+	 * @param string $name Property name
+	 * @return boolean
+	 */
+	function __isset($name) {
+		switch ($name) {
+			case 'name':
+				return $this->getName() !== null;
+				break;
+			case 'attributes':
+				return $this->getAttributes() !== null;
+				break;
+			case 'content':
+				return $this->getContent() !== null;
+				break;
+			case 'children':
+				return $this->getChildren() !== null;
+				break;
+		}
+		return false;
+	}
+}