1 files changed, 105 insertions, 0 deletions
diff --git a/engine/lib/opendd.php b/engine/lib/opendd.php
new file mode 100644
index 000000000..f00ea6aab
--- /dev/null
+++ b/engine/lib/opendd.php
@@ -0,0 +1,105 @@
+<?php
+/**
+ * OpenDD PHP Library.
+ *
+ * @package Elgg.Core
+ * @subpackage ODD
+ * @version 0.4
+ */
+
+/**
+ * Attempt to construct an ODD object out of a XmlElement or sub-elements.
+ *
+ * @param XmlElement $element The element(s)
+ *
+ * @return mixed An ODD object if the element can be handled, or false.
+ * @access private
+ */
+function ODD_factory (XmlElement $element) {
+	$name = $element->name;
+	$odd = false;
+
+	switch ($name) {
+		case 'entity' :
+			$odd = new ODDEntity("", "", "");
+			break;
+		case 'metadata' :
+			$odd = new ODDMetaData("", "", "", "");
+			break;
+		case 'relationship' :
+			$odd = new ODDRelationship("", "", "");
+			break;
+	}
+
+	// Now populate values
+	if ($odd) {
+		// Attributes
+		foreach ($element->attributes as $k => $v) {
+			$odd->setAttribute($k, $v);
+		}
+
+		// Body
+		$body = $element->content;
+		$a = stripos($body, "<![CDATA");
+		$b = strripos($body, "]]>");
+		if (($body) && ($a !== false) && ($b !== false)) {
+			$body = substr($body, $a + 8, $b - ($a + 8));
+		}
+
+		$odd->setBody($body);
+	}
+
+	return $odd;
+}
+
+/**
+ * Import an ODD document.
+ *
+ * @param string $xml The XML ODD.
+ *
+ * @return ODDDocument
+ * @access private
+ */
+function ODD_Import($xml) {
+	// Parse XML to an array
+	$elements = xml_to_object($xml);
+
+	// Sanity check 1, was this actually XML?
+	if ((!$elements) || (!$elements->children)) {
+		return false;
+	}
+
+	// Create ODDDocument
+	$document = new ODDDocument();
+
+	// Itterate through array of elements and construct ODD document
+	$cnt = 0;
+
+	foreach ($elements->children as $child) {
+		$odd = ODD_factory($child);
+
+		if ($odd) {
+			$document->addElement($odd);
+			$cnt++;
+		}
+	}
+
+	// Check that we actually found something
+	if ($cnt == 0) {
+		return false;
+	}
+
+	return $document;
+}
+
+/**
+ * Export an ODD Document.
+ *
+ * @param ODDDocument $document The Document.
+ *
+ * @return string
+ * @access private
+ */
+function ODD_Export(ODDDocument $document) {
+	return "$document";
+}