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annotate mod_throttle_presence/mod_throttle_presence.lua @ 4976:75b6e5df65f9

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various: Improve error reporting if missing file server module on 0.12 If there is some error loading net.http.files then it would be swallowed by the pcall and then it would proceed to trying mod_http_files, which might cause unexpected behavior on 0.12 Ref #1765
author Kim Alvefur <zash@zash.se>
date Mon, 18 Jul 2022 22:47:54 +0200
parents 552faee596b7
children
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d8c50448d0e7 mod_throttle_presence: Remove timer support, depend on mod_csi to enable/disable. Untested, but the previous version was definitely broken anyway.
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parents: 162
diff changeset
1 local filters = require "util.filters";
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2 local st = require "util.stanza";
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3
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4 module:depends("csi");
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5
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6 local function presence_filter(stanza, session)
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7 if getmetatable(stanza) ~= st.stanza_mt then
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8 return stanza; -- Things we don't want to touch
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9 end
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10 if stanza._flush then
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11 stanza._flush = nil;
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12 return stanza;
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13 end
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d8c50448d0e7 mod_throttle_presence: Remove timer support, depend on mod_csi to enable/disable. Untested, but the previous version was definitely broken anyway.
Matthew Wild <mwild1@gmail.com>
parents: 162
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14 local buffer = session.presence_buffer;
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parents: 162
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15 local from = stanza.attr.from;
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16 if stanza.name == "presence" and (stanza.attr.type == nil or stanza.attr.type == "unavailable") then
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parents: 1867
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17 module:log("debug", "Buffering presence stanza from %s to %s", stanza.attr.from, session.full_jid);
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18 buffer[stanza.attr.from] = st.clone(stanza);
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19 return nil; -- Drop this stanza (we've stored it for later)
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20 else
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21 local cached_presence = buffer[stanza.attr.from];
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parents: 162
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22 if cached_presence then
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parents: 162
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23 module:log("debug", "Important stanza for %s from %s, flushing presence", session.full_jid, from);
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24 stanza._flush = true;
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25 cached_presence._flush = true;
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parents: 162
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26 session.send(cached_presence);
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parents: 162
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27 buffer[stanza.attr.from] = nil;
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28 end
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29 end
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30 return stanza;
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31 end
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parents: 162
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33 local function throttle_session(event)
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34 local session = event.origin;
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Matthew Wild <mwild1@gmail.com>
parents: 162
diff changeset
35 if session.presence_buffer then return; end
d8c50448d0e7 mod_throttle_presence: Remove timer support, depend on mod_csi to enable/disable. Untested, but the previous version was definitely broken anyway.
Matthew Wild <mwild1@gmail.com>
parents: 162
diff changeset
36 module:log("debug", "Suppressing presence updates to %s", session.full_jid);
d8c50448d0e7 mod_throttle_presence: Remove timer support, depend on mod_csi to enable/disable. Untested, but the previous version was definitely broken anyway.
Matthew Wild <mwild1@gmail.com>
parents: 162
diff changeset
37 session.presence_buffer = {};
d8c50448d0e7 mod_throttle_presence: Remove timer support, depend on mod_csi to enable/disable. Untested, but the previous version was definitely broken anyway.
Matthew Wild <mwild1@gmail.com>
parents: 162
diff changeset
38 filters.add_filter(session, "stanzas/out", presence_filter);
d8c50448d0e7 mod_throttle_presence: Remove timer support, depend on mod_csi to enable/disable. Untested, but the previous version was definitely broken anyway.
Matthew Wild <mwild1@gmail.com>
parents: 162
diff changeset
39 end
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parents:
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Matthew Wild <mwild1@gmail.com>
parents: 162
diff changeset
41 local function restore_session(event)
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42 local session = event.origin;
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parents: 162
diff changeset
43 if not session.presence_buffer then return; end
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Matthew Wild <mwild1@gmail.com>
parents: 162
diff changeset
44 filters.remove_filter(session, "stanzas/out", presence_filter);
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parents: 162
diff changeset
45 module:log("debug", "Flushing buffer for %s", session.full_jid);
d8c50448d0e7 mod_throttle_presence: Remove timer support, depend on mod_csi to enable/disable. Untested, but the previous version was definitely broken anyway.
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parents: 162
diff changeset
46 for jid, presence in pairs(session.presence_buffer) do
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parents: 162
diff changeset
47 session.send(presence);
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parents: 162
diff changeset
48 end
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parents: 162
diff changeset
49 session.presence_buffer = nil;
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parents: 162
diff changeset
50 end
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parents: 162
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parents: 162
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52 module:hook("csi-client-inactive", throttle_session);
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parents: 162
diff changeset
53 module:hook("csi-client-active", restore_session);