net.server_select: Return handler from addclient

[prosody.git] / util / filters.lua

diff --git a/util/filters.lua b/util/filters.lua
index f304e71a15f4a2a79a20c738356b5c751baac194..8a470011fe4b688b6bd7259fc084098ab00f2c86 100644 (file)
--- a/util/filters.lua
+++ b/util/filters.lua
@@ -1,7 +1,7 @@
 -- Prosody IM
 -- Copyright (C) 2008-2010 Matthew Wild
 -- Copyright (C) 2008-2010 Waqas Hussain
--- 
+--
 -- This project is MIT/X11 licensed. Please see the
 -- COPYING file in the source package for more information.
 --
@@ -16,7 +16,7 @@ function initialize(session)
        if not session.filters then
                local filters = {};
                session.filters = filters;
-               
+
                function session.filter(type, data)
                        local filter_list = filters[type];
                        if filter_list then
@@ -28,11 +28,11 @@ function initialize(session)
                        return data;
                end
        end
-       
+
        for i=1,#new_filter_hooks do
                new_filter_hooks[i](session);
        end
-       
+
        return session.filter;
 end
 
@@ -40,20 +40,20 @@ function add_filter(session, type, callback, priority)
        if not session.filters then
                initialize(session);
        end
-       
+
        local filter_list = session.filters[type];
        if not filter_list then
                filter_list = {};
                session.filters[type] = filter_list;
        end
-       
+
        priority = priority or 0;
-       
+
        local i = 0;
        repeat
                i = i + 1;
        until not filter_list[i] or filter_list[filter_list[i]] >= priority;
-       
+
        t_insert(filter_list, i, callback);
        filter_list[callback] = priority;
 end
@@ -76,4 +76,12 @@ function add_filter_hook(callback)
        t_insert(new_filter_hooks, callback);
 end
 
+function remove_filter_hook(callback)
+       for i=1,#new_filter_hooks do
+               if new_filter_hooks[i] == callback then
+                       t_remove(new_filter_hooks, i);
+               end
+       end
+end
+
 return _M;