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mod_muc_bot/mod_muc_bot.lua @ 4764:a754f7e380b2
mod_dnsupdate: Rewrite port config vs DNS comparison code
I'm not sure if it was correct, which means it was hard to understand
and thus needed to be simplified. Hope this accomplishes that.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Mon, 08 Nov 2021 23:03:14 +0100 |
parent | 4567:bcf4518d18d4 |
child | 4824:205b9d06fe6b |
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local st = require "util.stanza"; local jid = require "util.jid"; local bots = module:get_option_set("known_bots", {}); module:hook("muc-occupant-groupchat", function(event) if event.occupant then return end -- skip messages from actual occupants local room = event.room; if bots:contains(jid.bare(event.from)) or bots:contains(jid.host(event.from)) then local nick = room:get_registered_nick(jid); if not nick then -- Allow bot to specify its own nick, but we're appending '[bot]' to it. -- FIXME HATS!!! nick = event.stanza:get_child_text("nick", "http://jabber.org/protocol/nick"); nick = (nick or jid.bare(event.from)) .. "[bot]"; end local virtual_occupant_jid = jid.prep(room.jid .. "/" .. nick, true); if not virtual_occupant_jid then module:send(st.error_reply(event.stanza, "modify", "jid-malformed", "Nickname must pass strict validation", room.jid)); return true; end local occupant = room:new_occupant(module.host, virtual_occupant_jid); local join = st.presence({from = event.from; to = virtual_occupant_jid}); local dest_x = st.stanza("x", {xmlns = "http://jabber.org/protocol/muc#user"}); occupant:set_session(event.from, join, true); room:save_occupant(occupant); room:publicise_occupant_status(occupant, dest_x); -- Inject virtual occupant to trick all the other hooks on this event that -- this is an actual legitimate participant. event.occupant = occupant; end end, 66); module:hook("muc-occupant-pre-join", function(event) local room = event.room; local nick = jid.resource(event.occupant.nick); if nick:sub(-5, -1) == "[bot]" then event.origin.send(st.error_reply(event.stanza, "modify", "policy-violation", "Only known bots may use the [bot] suffix", room.jid)); return true; end end, 3); module:hook("muc-occupant-pre-change", function(event) local room = event.room; local nick = jid.resource(event.dest_occupant.nick); if nick:sub(-5, -1) == "[bot]" then event.origin.send(st.error_reply(event.stanza, "modify", "policy-violation", "Only known bots may use the [bot] suffix", room.jid)); return true; end end, 3); if not module:get_option_boolean("bots_get_messages", true) then module:hook("muc-broadcast-message", function (event) event.room:broadcast(event.stanza, function (nick, occupant) if nick:sub(-5, -1) == "[bot]" or bots:contains(occupant.bare_jid) or bots:contains(jid.host(occupant.bare_jid)) then return false; else return true; end end); return true; end, -100); end if module:get_option_boolean("ignore_bot_errors", true) then module:hook("message/full", function (event) local stanza = event.stanza; if stanza.attr.type == "error" then if bots:contains(jid.bare(stanza.attr.from)) or bots:contains(jid.host(stanza.attr.from)) then module:log("debug", "Ignoring error from known bot"); return true; end end end, 1); end assert(string.sub("foo[bot]", -5, -1) == "[bot]", "substring indicies, how do they work?");