From decd0dc035cce0918519bef77742ff87db23e3f3 Mon Sep 17 00:00:00 2001
From: Mario Vavti <mario@mariovavti.com>
Date: Wed, 12 Jun 2019 11:27:39 +0200
Subject: more work on event item deletion

---
 Zotlabs/Lib/Libzot.php | 19 +++++++++++++++++++
 include/items.php      | 12 +++++++++++-
 include/zot.php        | 19 +++++++++++++++++++
 3 files changed, 49 insertions(+), 1 deletion(-)

diff --git a/Zotlabs/Lib/Libzot.php b/Zotlabs/Lib/Libzot.php
index 976ed22fa..ba9ffbead 100644
--- a/Zotlabs/Lib/Libzot.php
+++ b/Zotlabs/Lib/Libzot.php
@@ -2074,6 +2074,25 @@ class Libzot {
 			return false;
 		}
 
+		if ($item['obj_type'] == ACTIVITY_OBJ_EVENT) {
+			$i = q("SELECT * FROM event WHERE event_hash = '%s' AND uid = %d LIMIT 1",
+				dbesc($item['uuid']),
+				intval($uid)
+			);
+			if ($i) {
+				if ($i[0]['event_xchan'] === $sender) {
+					q("delete from event where event_hash = '%s' and uid = %d",
+						dbesc($item['uuid']),
+						intval($uid)
+					);
+				}
+				else {
+					logger('delete linked event: not owner');
+					return;
+				}
+			}
+		}
+
 		if($item_found) {
 			if(intval($r[0]['item_deleted'])) {
 				logger('delete_imported_item: item was already deleted');
diff --git a/include/items.php b/include/items.php
index 95b696034..b6d8eb652 100755
--- a/include/items.php
+++ b/include/items.php
@@ -3740,6 +3740,13 @@ function drop_item($id,$interactive = true,$stage = DROPITEM_NORMAL,$force = fal
 
 	if($ok_to_delete) {
 
+		if ($item['resource_type'] === 'event') {
+			$x = q("delete from event where event_hash = '%s' and uid = %d",
+				dbesc($item['resource_id']),
+				intval($item['uid'])
+			);
+		}
+
 		// set the deleted flag immediately on this item just in case the
 		// hook calls a remote process which loops. We'll delete it properly in a second.
 
@@ -3816,7 +3823,10 @@ function drop_item($id,$interactive = true,$stage = DROPITEM_NORMAL,$force = fal
  */
 function delete_item_lowlevel($item, $stage = DROPITEM_NORMAL, $force = false) {
 
-	$linked_item = (($item['resource_id']) ? true : false);
+	//$linked_item = (($item['resource_id']) ? true : false);
+
+	$linked_resource_types = [ 'photo' ];
+	$linked_item = (($item['resource_id'] && $item['resource_type'] && in_array($item['resource_type'], $linked_resource_types)) ? true : false);
 
 	logger('item: ' . $item['id'] . ' stage: ' . $stage . ' force: ' . $force, LOGGER_DATA);
 
diff --git a/include/zot.php b/include/zot.php
index a37b7cdb5..9dd9aceff 100644
--- a/include/zot.php
+++ b/include/zot.php
@@ -2278,6 +2278,25 @@ function delete_imported_item($sender, $item, $uid, $relay) {
 		return false;
 	}
 
+	if ($item['obj_type'] == ACTIVITY_OBJ_EVENT) {
+		$i = q("SELECT * FROM event WHERE event_hash = '%s' AND uid = %d LIMIT 1",
+			dbesc($item['uuid']),
+			intval($uid)
+		);
+		if ($i) {
+			if ($i[0]['event_xchan'] === $sender['hash']) {
+				q("delete from event where event_hash = '%s' and uid = %d",
+					dbesc($item['uuid']),
+					intval($uid)
+				);
+			}
+			else {
+				logger('delete linked event: not owner');
+				return;
+			}
+		}
+	}
+
 	require_once('include/items.php');
 
 	if($item_found) {
-- 
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