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annotate mod_throttle_presence/mod_throttle_presence.lua @ 5271:3a1df3adad0c

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mod_http_oauth2: Allow user to decide which requested scopes to grant These should at the very least be shown to the user, so they can decide whether to grant them. Considered whether to filter the requested scopes down to actually understood scopes that would be granted, but decided that this was a bit complex for a first step, since role role selection and other kinds of scopes are mixed into the same field here.
author Kim Alvefur <zash@zash.se>
date Thu, 23 Mar 2023 16:28:08 +0100
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.
Matthew Wild <mwild1@gmail.com>
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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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
diff changeset
26 session.send(cached_presence);
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parents: 162
diff changeset
27 buffer[stanza.attr.from] = nil;
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28 end
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parents:
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29 end
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parents: 162
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30 return stanza;
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31 end
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parents:
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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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Matthew Wild <mwild1@gmail.com>
parents: 162
diff changeset
45 module:log("debug", "Flushing buffer for %s", session.full_jid);
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parents: 162
diff changeset
46 for jid, presence in pairs(session.presence_buffer) do
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Matthew Wild <mwild1@gmail.com>
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
diff changeset
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parents: 162
diff changeset
52 module:hook("csi-client-inactive", throttle_session);
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parents: 162
diff changeset
53 module:hook("csi-client-active", restore_session);