spam.lua: refactor basic filters

diff --git a/lua/spam.lua b/lua/spam.lua
index 488b3d4..bb73106 100644 (file)
--- a/lua/spam.lua
+++ b/lua/spam.lua
@@ -6,22 +6,8 @@ local function ascii(txt)
        txt = txt:gsub("[^ -~]", ""):lower()
        return txt
 end
-function setspamlevel(newlevel)
-       spamlevel = newlevel
-       hook_add("sendtochannel", "supernets_filter", spamlevel >= 10 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("irc.supernets.org", 1, true) then
-                       return -1
-               end
-       end)
-       hook_add("sendtoclient", "supernets_pm_filter", spamlevel >= 10 and function(hook, cl1, cl2, chan, txt)
+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
@@ -29,11 +15,11 @@ function setspamlevel(newlevel)
                        return 0
                end
                txt = ascii(txt)
-               if txt:find("irc.supernets.org", 1, true) then
+               if not chan.v[cl1.key] and not chan.o[cl1.key] and txt:find(badword, 1, true) then
                        return -1
                end
        end)
-       hook_add("sendtochannel", "hardchats_filter", spamlevel >= 10 and function(hook, cl1, cl2, chan, txt)
+       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
@@ -41,48 +27,16 @@ function setspamlevel(newlevel)
                        return 0
                end
                txt = ascii(txt)
-               if txt:find("hardchats.com", 1, true) or txt:find("hardchat", 1, true) then
-                       return -1
-               end
-       end)
-       hook_add("sendtoclient", "hardchats_pm_filter", spamlevel >= 10 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("hardchats.com", 1, true) or txt:find("hardchat", 1, true)) then
-                       return -1
-               end
-       end)
-       hook_add("sendtochannel", "l0de_radio_hour_filter", spamlevel >= 10 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("1-877-293-1933", 1, true)) then
-                       return -1
-               end
-       end)
-       hook_add("sendtoclient", "l0de_radio_hour_pm_filter", spamlevel >= 10 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("1-877-293-1933", 1, true) then
+               if txt:find(badword, 1, true) then
                        return -1
                end
        end)
+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)
        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