plugins/version.lua

local st = require "prosody.util.stanza";

local xmlns_version = "jabber:iq:version";

local friendly_errors = {

	["service-unavailable"] = " doesn't reply to version requests";

	["feature-not-implemented"] = " doesn't support version requests";

	["remote-server-not-found"] = " can't be reached via XMPP";

}

function riddim.plugins.version(bot)

	bot.stream:add_plugin("version");

	bot.stream.version:set{

		name = bot.config.bot_name or "Riddim";

		version = bot.config.bot_version or "alpha";

		platform = bot.config.bot_platform or _VERSION;

	};

	bot:add_plugin("resolvejid");

	bot:hook("commands/version", function (command)

		local who, param = bot.stream.jid, command.param;

		if param then

			who = bot:resolvejid(param, command.room);

		end

		bot.stream:query_version(who, function (reply)

			if not reply.error then

				local saywho = (who == command.sender.jid and "You are") or (param and param.." is" or "I am");

				local isrunning = saywho.." running "..(reply.name or "something");

				if reply.version then

					isrunning = isrunning .." version "..reply.version;

				end

				if reply.platform then

					isrunning = isrunning .." on "..reply.platform;

				end

				command:reply(isrunning);

			else

				local type, condition, text = reply.type, reply.condition, reply.text;

				local r = "There was an error requesting "..param.."'s version";

				local friendly_error = friendly_errors[condition];

				if friendly_error then

					r = r .. friendly_error;

				elseif condition and not text then

					r = r..": "..(condition):gsub("%-", "  ");

				end

				if text then

					r = r .. " ("..text..")";

				end

				command:reply(r);

			end

		end);

		return true;

	end);	

end