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annotate mod_throttle_presence/mod_throttle_presence.lua @ 735:c1b0f0c33c6a

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mod_archive: Fix hour offset in stored message date os.date expect a timestamp in local time, that is subject to daylight saving. But since we pass an UTC timestamp to os.date one hour is (wrongly) added in the summer. The only sensible thing is to call the os.date only once with the ! parametter. And then parsing this sting to get the utc_timestamp. Calling os.date with an UTC timestamp is not possible, and calling os.date twice without timestamp could give different results.
author Olivier Goffart <ogoffart@woboq.com>
date Wed, 04 Jul 2012 13:49:57 +0200
parents fe9c4daee076
children d8c50448d0e7
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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fe9c4daee076 mod_throttle_presence: Buffer up presence for up to flush_presence_seconds and send latest presence stanzas for each contact at once
Matthew Wild <mwild1@gmail.com>
parents:
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1 local add_filter = require "util.filters".add_filter;
fe9c4daee076 mod_throttle_presence: Buffer up presence for up to flush_presence_seconds and send latest presence stanzas for each contact at once
Matthew Wild <mwild1@gmail.com>
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2 local add_task = require "util.timer".add_task;
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3
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4 local buffer_seconds = module:get_option_number("flush_presence_seconds");
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5
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Matthew Wild <mwild1@gmail.com>
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6 local function throttle_session(data)
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7 local session = data.session;
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8 local buffer, flushing = {}, false;
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9 local timer_active = false;
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10 local function flush_buffer()
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11 module:log("debug", "Flushing buffer for %s", session.full_jid);
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12 flushing = true;
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Matthew Wild <mwild1@gmail.com>
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13 for jid, presence in pairs(buffer) do
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Matthew Wild <mwild1@gmail.com>
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14 session.send(presence);
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15 end
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16 flushing = false;
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17 end
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18 local function throttle_presence(stanza)
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Matthew Wild <mwild1@gmail.com>
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19 if stanza.name ~= "presence" or (stanza.attr.type and stanza.attr.type ~= "unavailable") then
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20 module:log("debug", "Non-presence stanza for %s: %s", session.full_jid, tostring(stanza));
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21 flush_buffer();
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22 elseif not flushing then
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Matthew Wild <mwild1@gmail.com>
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23 module:log("debug", "Buffering presence stanza from %s to %s", stanza.attr.from, session.full_jid);
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24 buffer[stanza.attr.from] = stanza;
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Matthew Wild <mwild1@gmail.com>
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25 if not timer_active and buffer_seconds then
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26 timer_active = true;
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27 add_task(buffer_seconds, flush_buffer);
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28 end
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29 return nil; -- Drop this stanza (we've stored it for later)
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30 end
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31 return stanza;
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32 end
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33 add_filter(session, "stanzas/out", throttle_presence);
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34 end
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37 module:hook("resource-bind", throttle_session);