File

plugins/mod_version.lua @ 12995:e385f3a06673

moduleapi: Add 'peek' to :may() and new :could() helper to suppress logging The current method logs scary "access denied" messages on failure - this is generally very useful when debugging access control stuff, but in some cases the call is simply a check to see if someone *could* perform an action, even if they haven't requested it yet. One example is determining whether to show the user as an admin in disco. The 'peek' parameter, if true, will suppress such logging. The :could() method is just a simple helper that can make the calling code a bit more readable (suggested by Zash).
author Matthew Wild <mwild1@gmail.com>
date Sun, 26 Mar 2023 14:06:04 +0100
parent 12977:74b9e05af71e
child 13474:05c1098084cd
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-- 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 "prosody.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, "prosody.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);