File

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−-- Prosody IM
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−-- Copyright (C) 2008-2010 Matthew Wild
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−-- Copyright (C) 2008-2010 Waqas Hussain
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−--
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−-- This project is MIT/X11 licensed. Please see the
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−-- COPYING file in the source package for more information.
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−--
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−
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−
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−local full_sessions = prosody.full_sessions;
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−local bare_sessions = prosody.bare_sessions;
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−
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−local st = require "util.stanza";
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−local jid_bare = require "util.jid".bare;
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−local jid_split = require "util.jid".split;
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−local user_exists = require "core.usermanager".user_exists;
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−
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−local function process_to_bare(bare, origin, stanza)
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−	local user = bare_sessions[bare];
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−
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−	local t = stanza.attr.type;
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−	if t == "error" then
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−		return true; -- discard
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−	elseif t == "groupchat" then
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−		origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
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−	elseif t == "headline" then
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−		if user and stanza.attr.to == bare then
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−			for _, session in pairs(user.sessions) do
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−				if session.presence and session.priority >= 0 then
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−					session.send(stanza);
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−				end
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−			end
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−		end  -- current policy is to discard headlines if no recipient is available
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−	else -- chat or normal message
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−		if user then -- some resources are connected
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−			local recipients = user.top_resources;
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−			if recipients then
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−				local sent;
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−				for i=1,#recipients do
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−					sent = recipients[i].send(stanza) or sent;
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−				end
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−				if sent then
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−					return true;
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−				end
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−			end
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−		end
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−		-- no resources are online
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−		local node, host = jid_split(bare);
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−		local ok
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−		if user_exists(node, host) then
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−			ok = module:fire_event('message/offline/handle', {
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−				username = node;
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−				origin = origin,
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−				stanza = stanza,
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−			});
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−		end
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−
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−		if not ok then
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−			origin.send(st.error_reply(stanza, "cancel", "service-unavailable"));
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−		end
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−	end
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−	return true;
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−end
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−
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−module:hook("message/full", function(data)
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−	-- message to full JID received
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−	local origin, stanza = data.origin, data.stanza;
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−
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−	local session = full_sessions[stanza.attr.to];
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−	if session and session.send(stanza) then
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−		return true;
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−	else -- resource not online
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−		return process_to_bare(jid_bare(stanza.attr.to), origin, stanza);
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−	end
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−end, -1);
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−
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−module:hook("message/bare", function(data)
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−	-- message to bare JID received
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−	local origin, stanza = data.origin, data.stanza;
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−
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−	return process_to_bare(stanza.attr.to or (origin.username..'@'..origin.host), origin, stanza);
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−end, -1);
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−
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−module:add_feature("msgoffline");