mod_roster_command: Fix subscription when the "user JID" is a bare domain. Do not attempt to update the roster when the user is bare domain (e.g. a component), since they don't have rosters and the attempt results in an error: $ prosodyctl mod_roster_command subscribe proxy.example.com contact@example.com xxxxxxxxxxFailed to execute command: Error: /usr/lib/prosody/core/rostermanager.lua:104: attempt to concatenate local 'username' (a nil value) stack traceback: /usr/lib/prosody/core/rostermanager.lua:104: in function 'load_roster' /usr/lib/prosody/core/rostermanager.lua:305: in function 'set_contact_pending_out' mod_roster_command.lua:44: in function 'subscribe'

module:set_global();

local host_map = { };

module:wrap_object_event(require "net.http.server"._events, false, function (handlers, event_name, event_data)
	local verb, host, path = event_name:match("^(%w+ )(.-)(/.*)");
	host = host_map[host];
	event_name = verb .. host .. path;
	return handlers(event_name, event_data);
end);

function module.add_host(module)
	local http_host = module:get_option_string("http_host");
	for host in module:get_option_set("http_host_aliases", {}) do
		host_map[host] = http_host;
	end
end