From e15900792bccf1e99023d4c07afc6aeb52d7ffcd Mon Sep 17 00:00:00 2001
From: Egor <egor@patchysicp.xyz>
Date: Sun, 18 Aug 2024 01:23:40 +0300
Subject: [PATCH] spam.lua: use one set of hooks for all simple filters

---
 lua/spam.lua | 50 ++++++++++++++++++++++++++------------------------
 1 file changed, 26 insertions(+), 24 deletions(-)

diff --git a/lua/spam.lua b/lua/spam.lua
index bb73106..07a757f 100644
--- a/lua/spam.lua
+++ b/lua/spam.lua
@@ -6,37 +6,39 @@ local function ascii(txt)
 	txt = txt:gsub("[^ -~]", ""):lower()
 	return txt
 end
-local function simple_filter(id, badword, level)
-	hook_add("sendtochannel", id.."_filter", spamlevel >= level and function(hook, cl1, cl2, chan, txt)
-		if cl1.umode & 2 ~= 0 then -- UMODE_OPER
-			return 0
-		end
-		if cl1.umode & 8 ~= 0 then -- UMODE_REGISTERED
-			return 0
-		end
-		txt = ascii(txt)
-		if not chan.v[cl1.key] and not chan.o[cl1.key] and txt:find(badword, 1, true) then
+local simple_filters = {}
+hook_add("sendtochannel", "spam_simple_filter", function(hook, cl1, cl2, chan, txt)
+	-- 10 is UMODE_OPER|UMODE_REGISTERED
+	if cl1.umode & 10 ~= 0 or chan.v[cl1.key] or chan.o[cl1.key] then
+		return 0
+	end
+	txt = ascii(txt)
+	for k, _ in simple_filters do
+		if txt:find(k, 1, true) then
 			return -1
 		end
-	end)
-	hook_add("sendtoclient", id.."_pm_filter", spamlevel >= level and function(hook, cl1, cl2, chan, txt)
-		if cl1.umode & 2 ~= 0 then -- UMODE_OPER
-			return 0
-		end
-		if cl1.umode & 8 ~= 0 then -- UMODE_REGISTERED
-			return 0
-		end
-		txt = ascii(txt)
-		if txt:find(badword, 1, true) then
+	end
+end)
+hook_add("sendtoclient", "spam_simple_pm_filter", function(hook, cl1, cl2, chan, txt)
+	-- 10 is UMODE_OPER|UMODE_REGISTERED
+	if cl1.umode & 10 ~= 0 then
+		return 0
+	end
+	txt = ascii(txt)
+	for k, _ in simple_filters do
+		if txt:find(k, 1, true) then
 			return -1
 		end
-	end)
+	end
+end)
+function spam_set_simple_filter(badword, on)
+	simple_filters[badword] = on or nil
 end
 function setspamlevel(newlevel)
 	spamlevel = newlevel
-	simple_filter("supernets", "irc.supernets.org", 10)
-	simple_filter("hardchats", "hardchat", 10)
-	simple_filter("l0de_radio_hour", "1-877-293-1933", 10)
+	spam_set_simple_filter("irc.supernets.org", spamlevel >= 10) -- supernets
+	spam_set_simple_filter("hardchat", spamlevel >= 10) -- hardchats
+	spam_set_simple_filter("1-877-293-1933", spamlevel >= 10) -- l0de_radio_hour
 	hook_add("sendtoclient", "no_unsolicited_pm", spamlevel >= 20 and function(hook, cl1, cl2, chan, txt)
 		if cl1.umode & 2 ~= 0 then -- UMODE_OPER
 			return 0
-- 
2.56.0