-- 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 version;

local query = st.stanza("query", {xmlns = "jabber:iq:version"})

	:tag("name"):text("Prosody"):up()

	:tag("version"):text(prosody.version):up();

if not module:get_option("hide_os_type") then

	if os.getenv("WINDIR") then

		version = "Windows";

	else

		local os_version_command = module:get_option("os_version_command");

		local ok, pposix = pcall(require, "util.pposix");

		if not os_version_command and (ok and pposix and pposix.uname) then

			version = pposix.uname().sysname;

		end

		if not version then

			local uname = io.popen(os_version_command or "uname");

			if uname then

				version = uname:read("*a");

			end

			uname:close();

		end

	end

	if version then

		version = version:match("^%s*(.-)%s*$") or version;

		query:tag("os"):text(version):up();

	end

end

module:hook("iq/host/jabber:iq:version:query", function(event)

	local stanza = event.stanza;

	if stanza.attr.type == "get" and stanza.attr.to == module.host then

		event.origin.send(st.reply(stanza):add_child(query));

		return true;

	end

end);