File

plugins/mod_message.lua @ 11928:16cf863b36c0

mod_csi_simple: Skip initiating flush in all but inactive state Both in the flushing and active states the right thing to do is skip directly to returning the data. Also in any unknown state, like if the filter is somehow left behind on module unload.
author Kim Alvefur <zash@zash.se>
date Sat, 20 Nov 2021 23:54:43 +0100
parent 11815:df1d3df2204a
child 12977:74b9e05af71e
line wrap: on
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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 full_sessions = prosody.full_sessions;
local bare_sessions = prosody.bare_sessions;

local st = require "util.stanza";
local jid_bare = require "util.jid".bare;
local jid_split = require "util.jid".split;
local user_exists = require "core.usermanager".user_exists;

local function process_to_bare(bare, origin, stanza)
	local user = bare_sessions[bare];

	local t = stanza.attr.type;
	if t == "error" then
		return true; -- discard
	elseif t == "groupchat" then
		local node, host = jid_split(bare);
		if user_exists(node, host) then
			if module:fire_event("message/bare/groupchat", {
				origin = origin, stanza = stanza;
			}) then
				return true;
			end
		end

		origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
	elseif t == "headline" then
		if user and stanza.attr.to == bare then
			for _, session in pairs(user.sessions) do
				if session.presence and session.priority >= 0 then
					session.send(stanza);
				end
			end
		end  -- current policy is to discard headlines if no recipient is available
	else -- chat or normal message
		if user then -- some resources are connected
			local recipients = user.top_resources;
			if recipients then
				local sent;
				for i=1,#recipients do
					sent = recipients[i].send(stanza) or sent;
				end
				if sent then
					return true;
				end
			end
		end
		-- no resources are online
		local node, host = jid_split(bare);
		local ok
		if user_exists(node, host) then
			ok = module:fire_event('message/offline/handle', {
				username = node, -- username of the recipient of the offline message
				origin = origin, -- the sender
				stanza = stanza,
			});
		end

		if not ok then
			origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
		end
	end
	return true;
end

module:hook("message/full", function(data)
	-- message to full JID received
	local origin, stanza = data.origin, data.stanza;

	local session = full_sessions[stanza.attr.to];
	if session and session.send(stanza) then
		return true;
	else -- resource not online
		return process_to_bare(jid_bare(stanza.attr.to), origin, stanza);
	end
end, -1);

module:hook("message/bare", function(data)
	-- message to bare JID received
	local origin, stanza = data.origin, data.stanza;

	return process_to_bare(stanza.attr.to or (origin.username..'@'..origin.host), origin, stanza);
end, -1);