From cce017f1d53e5e082d8e90313c617607ea927a5e Mon Sep 17 00:00:00 2001
From: Teh PeGaSuS <pegasus@gitea.0bin.xyz>
Date: Sun, 1 Mar 2026 17:10:52 +0100
Subject: [PATCH] Update Chanban/chanban.tcl

Added ways to deal with UnrealIRCd extbans
---
 Chanban/chanban.tcl | 71 ++++++++++++++++++++++++++++++++++++---------
 1 file changed, 57 insertions(+), 14 deletions(-)

diff --git a/Chanban/chanban.tcl b/Chanban/chanban.tcl
index 77f94d3..ace48f9 100644
--- a/Chanban/chanban.tcl
+++ b/Chanban/chanban.tcl
@@ -1,5 +1,7 @@
 # ----------
 # Channel Management
+#
+# Detailed explanations: https://gitea.0bin.xyz/pegasus/tclscripts/src/branch/main/Chanban#readme
 # ----------
 namespace eval cmgmt {
     # ----------
@@ -24,7 +26,8 @@ namespace eval cmgmt {
     variable tBanDuration "30"
 
     # Command to upload the file
-    # Be aware that we are doing `cat $filename |` so you must account for that
+    # The ban list file is piped into the command via stdin (with `cat $filename |`)
+    # so your command must read from stdin
     variable upCommand "curl -s -F file=@- https://x0.at/"
 
     # Set the banmask to use in banning the user
@@ -65,7 +68,7 @@ namespace eval cmgmt {
     bind pub * ${::cmgmt::trigger}kick ::cmgmt::kick_pub
     bind pub * ${::cmgmt::trigger}unban ::cmgmt::unban_pub
     bind pub * ${::cmgmt::trigger}banlist ::cmgmt::banlist_pub
-    bind pub * ${::cmgmt::trigger}autoadd ::cmgmt::autoadd_pub
+    bind pub * ${::cmgmt::trigger}autoadd ::cmgmt::autoban_pub
     bind pub * ${::cmgmt::trigger}opcmds ::cmgmt::opcmds_pub
 
     ### Private
@@ -74,14 +77,18 @@ namespace eval cmgmt {
     bind msg * kick ::cmgmt::kick_msg
     bind msg * unban ::cmgmt::unban_msg
     bind msg * banlist ::cmgmt::banlist_msg
-    bind msg * autoadd ::cmgmt::autoadd_msg
+    bind msg * autoadd ::cmgmt::autoban_msg
     bind msg * opcmds ::cmgmt::opcmds_msg
 
     # ----------
     # Auto add bans
     # ----------
+    # Add bans
     bind mode * * ::cmgmt::abans
 
+    # Remove bans
+    bind mode * * ::cmgmt::rabans
+
     # ----------
     # End of configuration
     # ----------
@@ -100,14 +107,50 @@ namespace eval cmgmt {
         set hostmask [maskhost ${nick}![getchanhost $nick $chan] 2]
         set banReason "$::cmgmt::banReason \(auto-added\)"
         if {$mode eq "+b" && [channel get $chan addBans]} {
-            if {$nick ne $::botnick && $nick ni $::cmgmt::noAddNicks && $hostmask ni $::cmgmt::noAddMasks && ![matchstr "~*" $target] && ![isban $target $chan]} {
-                newchanban $chan $target $nick $banReason 0
-                putserv "PRIVMSG $chan :$target auto-added to ${chan}'s ban list."
-                return 0
-            } else {
-                return 0
+            if {$nick ne $::botnick && $nick ni $::cmgmt::noAddNicks && $hostmask ni $::cmgmt::noAddMasks} {
+                if {[matchstr "~*" $target] && ![isban $target $chan]} {
+                    newchanban $chan $target $nick $banReason 0 sticky
+                    return 0
+                } else {
+                    newchanban $chan $target $nick $banReason 0
+                    putserv "PRIVMSG $chan :$target auto-added to ${chan}'s ban list."
+                    return 0
+                }
             }
         }
+        return 0
+    }
+
+    # We also need to deal with the removal of extbans, since we don't deal with them internally
+    proc rabans {nick uhost hand chan mode target} {
+        if {$mode eq "-b" && [channel get $chan addBans]} {
+            if {$nick ne $::botnick && [isban $target $chan]} {
+                if {[matchstr "~*" $target]} {
+                    killchanban $chan $target
+                    return 0
+                } else {
+                    killchanban $chan $target
+                    putserv "PRIVMSG $chan :$target auto-removed from ${chan}'s ban list."
+                    return 0
+                }
+            }
+        }
+        return 0
+    }
+
+    # Lets check for existing extbans and add them to our ban list
+    # and make them sticky so the bot doesn't remove them
+    bind cron * "*/5 * * * *" ::cmgmt::addextbans
+    proc addextbans {minute hour day month weekday} {
+        foreach chan [channels] {
+            foreach cban [chanbans $chan] {
+                set mask [lindex [split $cban] 0]
+                if {[matchstr "~*" $mask] && ![isban $mask $chan]} {
+                    newchanban $chan $mask $::botnick EXTBAN 0 sticky
+                }
+            }
+        }
+        return 0
     }
 
     # ----------
@@ -294,7 +337,7 @@ namespace eval cmgmt {
     }
 
     ### Auto add bans
-    proc autoadd_pub {nick uhost hand chan text} {
+    proc autoban_pub {nick uhost hand chan text} {
         if {![matchattr $hand o|o $chan]} {
             putserv "NOTICE $nick :ERROR! You don't have access, ${nick}."
             return 0
@@ -313,7 +356,7 @@ namespace eval cmgmt {
                     return 0
                 }
             }
-            
+
             off {
                 if {![channel get $chan addBans]} {
                     putserv "PRIVMSG $chan :ERROR! Automatic ban adding is already disabled on ${chan}."
@@ -597,7 +640,7 @@ namespace eval cmgmt {
     }
 
     ### Auto add bans
-    proc autoadd_pub {nick uhost hand text} {
+    proc autoban_msg {nick uhost hand text} {
         set chan [lindex [split $text] 0]
 
         if {![matchstr "#*" $chan]} {
@@ -628,7 +671,7 @@ namespace eval cmgmt {
                     return 0
                 }
             }
-            
+
             off {
                 if {![channel get $chan addBans]} {
                     putserv "PRIVMSG $nick :ERROR! Automatic ban adding is already disabled on ${chan}."
@@ -677,7 +720,7 @@ namespace eval cmgmt {
             return 0
         }
 
-        putserv "PRIVMSG $nick :Available commands ban, tban, kick, unban, banlist"
+        putserv "PRIVMSG $nick :Available commands ban, tban, kick, unban, banlist, autoadd"
         return 0
     }