132 local function on_publish(event)

   133 	if event.actor == true then return end -- Not from a client

   134 	local node, item = event.node, event.item;

   135 	local username = jid_split(event.actor);

   136 	local data = storage:get(username) or {};

   137 	if node == "urn:xmpp:avatar:data" then

   138 		local new_photo = item:get_child_text("data", "urn:xmpp:avatar:data");

   139 		new_photo = new_photo and { name = "PHOTO"; ENCODING = { "b" }; new_photo } or nil;

   140 		local _, i = get_item(data, "PHOTO")

   141 		if new_photo then

   142 			data[i or #data+1] = new_photo;

   143 		elseif i then

   144 			table.remove(data, i);

   145 		end

   146 	elseif node == "http://jabber.org/protocol/nick" then

   147 		local new_nick = item:get_child_text("nick", "http://jabber.org/protocol/nick");

   148 		new_nick = new_nick and new_nick ~= "" and { name = "NICKNAME"; new_nick } or nil;

   149 		local _, i = get_item(data, "NICKNAME")

   150 		if new_nick then

   151 			data[i or #data+1] = new_nick;

   152 		elseif i then

   153 			table.remove(data, i);

   154 		end

   155 	else

   156 		return;

   157 	end

   158 	storage:set(username, data);

   159 end

   160 

   164 	service.events.add_handler("item-published", on_publish);