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view plugins/mod_muc_unique.lua @ 14177:67b68147ed1d 13.0

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util.ringbuffer: find(): Fix find logic bugs If the buffer was full, find() would return earlier (wpos == rpos). Checking blen is the better way to test if the buffer is empty. Secondly, the loop scanned for blen - l, but if l (length of needle) was larger than the buffer length, this calculation would underflow and cause a lot of spinning. New tests have been added to cover various edge cases of :find().
author Matthew Wild <mwild1@gmail.com>
date Mon, 25 May 2026 14:44:20 +0100
parents 74b9e05af71e
children
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-- XEP-0307: Unique Room Names for Multi-User Chat
local st = require "prosody.util.stanza";
local unique_name = require "prosody.util.id".medium;
module:add_feature "http://jabber.org/protocol/muc#unique"
module:hook("iq-get/host/http://jabber.org/protocol/muc#unique:unique", function(event)
	local origin, stanza = event.origin, event.stanza;
	origin.send(st.reply(stanza)
		:tag("unique", {xmlns = "http://jabber.org/protocol/muc#unique"})
		:text(unique_name():lower())
	);
	return true;
end,-1);