1 files changed, 118 insertions, 0 deletions
diff --git a/engine/handlers/export_handler.php b/engine/handlers/export_handler.php
new file mode 100644
index 000000000..aa5214c23
--- /dev/null
+++ b/engine/handlers/export_handler.php
@@ -0,0 +1,118 @@
+<?php
+/**
+ * Export handler.
+ *
+ * @package Elgg.Core
+ * @subpackage Export
+ */
+
+require_once(dirname(dirname(__FILE__)) . "/start.php");
+
+
+// Get input values, these will be mapped via modrewrite
+$guid = get_input("guid"); // guid of the entity
+
+// For attributes eg http://example.com/odd/73/attr/owner_uuid/
+// or http://example.com/odd/73/metadata/86/
+$type = get_input("type"); // attr, metadata, annotation, relationship
+$id_or_name = get_input("idname"); // Either a number or the key name (if attribute)
+
+$body = "";
+$title = "";
+
+// Only export the GUID
+if (($guid != "") && ($type == "") && ($id_or_name == "")) {
+	$entity = get_entity($guid);
+
+	if (!$entity) {
+		$query = elgg_echo('InvalidParameterException:GUIDNotFound', array($guid));
+		throw new InvalidParameterException($query);
+	}
+
+	$title = "GUID:$guid";
+	$body = elgg_view("export/entity", array("entity" => $entity, "uuid" => guid_to_uuid($guid)));
+
+	// Export an individual attribute
+} else if (($guid != "") && ($type != "") && ($id_or_name != "")) {
+	// Get a uuid
+	$entity = get_entity($guid);
+	if (!$entity) {
+		$msg = elgg_echo('InvalidParameterException:GUIDNotFound', array($guid));
+		throw new InvalidParameterException($msg);
+	}
+
+	$uuid = guid_to_uuid($entity->getGUID()) . "$type/$id_or_name/";
+
+	switch ($type) {
+		case 'attr' : // @todo: Do this better? - This is a bit of a hack...
+			$v = $entity->get($id_or_name);
+			if (!$v) {
+				$msg = elgg_echo('InvalidParameterException:IdNotExistForGUID', array($id_or_name, $guid));
+				throw new InvalidParameterException($msg);
+			}
+
+			$m = new ElggMetadata();
+
+			$m->value = $v;
+			$m->name = $id_or_name;
+			$m->entity_guid = $guid;
+			$m->time_created = $entity->time_created;
+			$m->time_updated = $entity->time_updated;
+			$m->owner_guid = $entity->owner_guid;
+			$m->id = $id_or_name;
+			$m->type = "attr";
+			break;
+		case 'metadata' :
+			$m = elgg_get_metadata_from_id($id_or_name);
+			break;
+		case 'annotation' :
+			$m = elgg_get_annotation_from_id($id_or_name);
+			break;
+		case 'relationship' :
+			$r = get_relationship($id_or_name);
+			break;
+		case 'volatile' :
+			$m = elgg_trigger_plugin_hook('volatile', 'metadata', array(
+				'guid' => $guid,
+				'varname' => $id_or_name,
+			));
+			break;
+
+		default :
+			$msg = elgg_echo('InvalidParameterException:CanNotExportType', array($type));
+			throw new InvalidParameterException($msg);
+	}
+
+	// Render metadata or relationship
+	if ((!$m) && (!$r)) {
+		throw new InvalidParameterException(elgg_echo('InvalidParameterException:NoDataFound'));
+	}
+
+	// Exporting metadata?
+	if ($m) {
+		if ($m->entity_guid != $entity->guid) {
+			throw new InvalidParameterException(elgg_echo('InvalidParameterException:DoesNotBelong'));
+		}
+
+		$title = "$type:$id_or_name";
+		$body = elgg_view("export/metadata", array("metadata" => $m, "uuid" => $uuid));
+	}
+
+	// Exporting relationship
+	if ($r) {
+		if (($r->guid_one != $entity->guid) && ($r->guid_two != $entity->guid)) {
+			throw new InvalidParameterException(elgg_echo('InvalidParameterException:DoesNotBelongOrRefer'));
+		}
+
+		$title = "$type:$id_or_name";
+		$body = elgg_view("export/relationship", array("relationship" => $r, "uuid" => $uuid));
+	}
+
+	// Something went wrong
+} else {
+	throw new InvalidParameterException(elgg_echo('InvalidParameterException:MissingParameter'));
+}
+
+$content = elgg_view_title($title) . $body;
+$body = elgg_view_layout('one_sidebar', array('content' => $content));
+echo elgg_view_page($title, $body);