From 88d1fcfe237470b6eaed079f95a048e5f39b1861 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Lars=20M=C3=BCller?=
 <34514239+appgurueu@users.noreply.github.com>
Date: Tue, 30 Mar 2021 21:49:50 +0200
Subject: [PATCH] Block & report player self-interaction (#11137)

---
 doc/lua_api.txt                     | 1 +
 src/network/serverpackethandler.cpp | 6 ++++++
 2 files changed, 7 insertions(+)

diff --git a/doc/lua_api.txt b/doc/lua_api.txt
index 66363be77..d333ca58b 100644
--- a/doc/lua_api.txt
+++ b/doc/lua_api.txt
@@ -4662,6 +4662,7 @@ Call these functions only at load time!
     * `cheat`: `{type=<cheat_type>}`, where `<cheat_type>` is one of:
         * `moved_too_fast`
         * `interacted_too_far`
+        * `interacted_with_self`
         * `interacted_while_dead`
         * `finished_unknown_dig`
         * `dug_unbreakable`
diff --git a/src/network/serverpackethandler.cpp b/src/network/serverpackethandler.cpp
index 5b378a083..708ddbf20 100644
--- a/src/network/serverpackethandler.cpp
+++ b/src/network/serverpackethandler.cpp
@@ -1051,6 +1051,12 @@ void Server::handleCommand_Interact(NetworkPacket *pkt)
 		if (pointed.type == POINTEDTHING_NODE) {
 			target_pos = intToFloat(pointed.node_undersurface, BS);
 		} else if (pointed.type == POINTEDTHING_OBJECT) {
+			if (playersao->getId() == pointed_object->getId()) {
+				actionstream << "Server: " << player->getName()
+					<< " attempted to interact with themselves" << std::endl;
+				m_script->on_cheat(playersao, "interacted_with_self");
+				return;
+			}
 			target_pos = pointed_object->getBasePosition();
 		}
 		float d = playersao->getEyePosition().getDistanceFrom(target_pos);