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util/filters.lua @ 11545:7b8a482f4efd 0.11
MUC: Add support for advertising muc#roomconfig_allowinvites in room disco#info
The de-facto interpretation of this (undocumented) option is to indicate to
the client whether it is allowed to invite other users to the MUC.
This is differs from the existing option in our config form, which only
controls the behaviour of sending of invites in a members-only MUC (we always
allow invites in open rooms).
Conversations is one client known to use this disco#info item to determine
whether it may send invites.
author | Matthew Wild <mwild1@gmail.com> |
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date | Mon, 10 May 2021 17:01:38 +0100 |
parent | 8555:4f0f5b49bb03 |
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-- 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. -- local t_insert, t_remove = table.insert, table.remove; local _ENV = nil; -- luacheck: std none local new_filter_hooks = {}; local 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 for i = 1, #filter_list do data = filter_list[i](data, session); if data == nil then break; end end end return data; end end for i=1,#new_filter_hooks do new_filter_hooks[i](session); end return session.filter; end local 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; elseif filter_list[callback] then return; -- Filter already added 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 local function remove_filter(session, type, callback) if not session.filters then return; end local filter_list = session.filters[type]; if filter_list and filter_list[callback] then for i=1, #filter_list do if filter_list[i] == callback then t_remove(filter_list, i); filter_list[callback] = nil; return true; end end end end local function add_filter_hook(callback) t_insert(new_filter_hooks, callback); end local 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 { initialize = initialize; add_filter = add_filter; remove_filter = remove_filter; add_filter_hook = add_filter_hook; remove_filter_hook = remove_filter_hook; };