From e444225b2cd2a37569b5a3f68ef302bbd8a2a55c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thorben=20G=C3=BCnther?= <admin@xenrox.net>
Date: Thu, 6 Oct 2022 13:41:22 +0200
Subject: [PATCH] static_commands: Protect built-in commands

---
 functions.go       | 11 +++++++++++
 static_commands.go | 12 ++++++++++++
 2 files changed, 23 insertions(+)
 create mode 100644 functions.go

diff --git a/functions.go b/functions.go
new file mode 100644
index 0000000..8395f8e
--- /dev/null
+++ b/functions.go
@@ -0,0 +1,11 @@
+package main
+
+func sliceContains(s []string, e string) bool {
+	for _, v := range s {
+		if e == v {
+			return true
+		}
+	}
+
+	return false
+}
diff --git a/static_commands.go b/static_commands.go
index 51bd2f3..b8ff07a 100644
--- a/static_commands.go
+++ b/static_commands.go
@@ -66,6 +66,12 @@ func (b *bot) handleCommands(parsed []string, msg *twitch.PrivateMessage) error
 			name := strings.TrimLeft(parsed[2], "!")
 			resp := strings.Join(parsed[3:], " ")
 
+			// check if built-in commands use this name
+			if sliceContains(faceitCommands(), name) {
+				b.say(msg, "Cannot override built-in command.")
+				return nil
+			}
+
 			query := `
 				INSERT INTO static_commands (channel, name, response)
 				VALUES ($1, $2, $3)
@@ -83,6 +89,12 @@ func (b *bot) handleCommands(parsed []string, msg *twitch.PrivateMessage) error
 	if parsed[1] == "delete" {
 		name := strings.TrimLeft(parsed[2], "!")
 
+		// check if built-in commands use this name
+		if sliceContains(faceitCommands(), name) {
+			b.say(msg, "Cannot delete built-in command.")
+			return nil
+		}
+
 		query := `
 			DELETE FROM static_commands
 			WHERE channel = $1 AND name = $2`
-- 
2.44.0