Software /
code /
prosody
File
plugins/muc/moderated.lib.lua @ 10973:39991e40d1dc
util.dbuffer: dynamic string buffer
Similar to util.ringbuffer (and shares almost identical API). Differences:
- size limit is optional and dynamic
- does not allocate a fixed buffer of max_size bytes
- focus on simply storing references to existing string objects where possible,
avoiding unnecessary allocations
- references are still stored in a ring buffer to enable use as a fast FIFO
Optional second parameter to new() provides the number of ring buffer segments. On
Lua 5.2 on my laptop, a segment is ~19 bytes. If the ring buffer fills up, the next
write will compact all strings into a single item.
author | Matthew Wild <mwild1@gmail.com> |
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date | Fri, 26 Jun 2020 16:41:31 +0100 |
parent | 9035:173c0e16e704 |
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-- Prosody IM -- Copyright (C) 2008-2010 Matthew Wild -- Copyright (C) 2008-2010 Waqas Hussain -- Copyright (C) 2014 Daurnimator -- -- This project is MIT/X11 licensed. Please see the -- COPYING file in the source package for more information. -- local function get_moderated(room) return room._data.moderated; end local function set_moderated(room, moderated) moderated = moderated and true or nil; if get_moderated(room) == moderated then return false; end room._data.moderated = moderated; return true; end module:hook("muc-disco#info", function(event) event.reply:tag("feature", {var = get_moderated(event.room) and "muc_moderated" or "muc_unmoderated"}):up(); end); module:hook("muc-config-form", function(event) table.insert(event.form, { name = "muc#roomconfig_moderatedroom"; type = "boolean"; label = "Moderated (require permission to speak)"; desc = "In moderated rooms occupants must be given permission to speak by a room moderator"; value = get_moderated(event.room); }); end, 80-3); module:hook("muc-config-submitted/muc#roomconfig_moderatedroom", function(event) if set_moderated(event.room, event.value) then event.status_codes["104"] = true; end end); module:hook("muc-get-default-role", function(event) if event.affiliation == nil then if get_moderated(event.room) then -- XEP-0045: -- An implementation MAY grant voice by default to visitors in unmoderated rooms. return "visitor" end end end, 1); return { get = get_moderated; set = set_moderated; };