prosody
39991e40d1dc
plugins/mod_version.lua

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Software / code / prosody

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plugins/mod_version.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>
date Fri, 26 Jun 2020 16:41:31 +0100
parent 9436:a950f9fa9137
child 12977:74b9e05af71e
line wrap: on
line source

-- Prosody IM
-- Copyright (C) 2008-2010 Matthew Wild
-- Copyright (C) 2008-2010 Waqas Hussain
--
-- This project is MIT/X11 licensed. Please see the
-- COPYING file in the source package for more information.
--

local st = require "util.stanza";

module:add_feature("jabber:iq:version");

local query = st.stanza("query", {xmlns = "jabber:iq:version"})
	:text_tag("name", "Prosody")
	:text_tag("version", prosody.version);

if not module:get_option_boolean("hide_os_type") then
	local platform;
	if os.getenv("WINDIR") then
		platform = "Windows";
	else
		local os_version_command = module:get_option_string("os_version_command");
		local ok, pposix = pcall(require, "util.pposix");
		if not os_version_command and (ok and pposix and pposix.uname) then
			platform = pposix.uname().sysname;
		end
		if not platform then
			local uname = io.popen(os_version_command or "uname");
			if uname then
				platform = uname:read("*a");
			end
			uname:close();
		end
	end
	if platform then
		platform = platform:match("^%s*(.-)%s*$") or platform;
		query:text_tag("os", platform);
	end
end

module:hook("iq-get/host/jabber:iq:version:query", function(event)
	local origin, stanza = event.origin, event.stanza;
	origin.send(st.reply(stanza):add_child(query));
	return true;
end);