prosody-modules
1900280e2a90
mod_delay/mod_delay.lua

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mod_delay/mod_delay.lua @ 3409:1900280e2a90

mod_pubsub_stats/README: Link to docs for Prosodys statistics
author Kim Alvefur <zash@zash.se>
date Sat, 22 Dec 2018 18:22:15 +0100
parent 3054:5e94061c1aa7
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1 -- Copyright (C) 2016-2017 Thilo Molitor
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2 --
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3 -- This project is MIT/X11 licensed. Please see the
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4 -- COPYING file in the source package for more information.
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5 --
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6
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7 local add_filter = require "util.filters".add_filter;
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8 local remove_filter = require "util.filters".remove_filter;
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9 local datetime = require "util.datetime";
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10
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11 local xmlns_delay = "urn:xmpp:delay";
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12
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13 -- Raise an error if the modules has been loaded as a component in prosody's config
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14 if module:get_host_type() == "component" then
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15 error(module.name.." should NOT be loaded as a component, check out http://prosody.im/doc/components", 0);
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16 end
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17
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18 local add_delay = function(stanza, session)
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19 if stanza and stanza.name == "message" and stanza:get_child("delay", xmlns_delay) == nil then
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20 -- only add delay tag to chat or groupchat messages (should we add a delay to anything else, too???)
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21 if stanza.attr.type == "chat" or stanza.attr.type == "groupchat" then
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22 -- session.log("debug", "adding delay to message %s", tostring(stanza));
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23 stanza = stanza:tag("delay", { xmlns = xmlns_delay, from = session.host, stamp = datetime.datetime()});
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24 end
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25 end
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26 return stanza;
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27 end
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28
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29 module:hook("resource-bind", function(event)
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30 add_filter(event.session, "stanzas/in", add_delay, 1);
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31 end);
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32 module:hook("smacks-hibernation-end", function(event)
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33 -- older smacks module versions send only the "intermediate" session in event.session and no session.resumed one
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34 if event.resumed then
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35 add_filter(event.resumed, "stanzas/in", add_delay, 1);
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36 end
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37 end);
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38 module:hook("pre-resource-unbind", function (event)
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39 remove_filter(event.session, "stanzas/in", add_delay);
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40 end);