From 76b14ec39b95d3f7b09b4cd3766e87c9fdd7fcd6 Mon Sep 17 00:00:00 2001
From: Kim Alvefur <zash@zash.se>
Date: Fri, 4 Oct 2013 16:40:27 +0200
Subject: mod_pubsub, util.pubsub: Keep track of the order of items

---
 plugins/mod_pubsub/mod_pubsub.lua | 2 +-
 plugins/mod_pubsub/pubsub.lib.lua | 4 ++--
 util/pubsub.lua                   | 9 ++++++++-
 3 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/plugins/mod_pubsub/mod_pubsub.lua b/plugins/mod_pubsub/mod_pubsub.lua
index 81a66f8b..2868d409 100644
--- a/plugins/mod_pubsub/mod_pubsub.lua
+++ b/plugins/mod_pubsub/mod_pubsub.lua
@@ -103,7 +103,7 @@ module:hook("host-disco-items-node", function (event)
 		return origin.send(pubsub_error_reply(stanza, ret));
 	end
 
-	for id, item in pairs(ret) do
+	for _, id in ipairs(ret) do
 		reply:tag("item", { jid = module.host, name = id }):up();
 	end
 	event.exists = true;
diff --git a/plugins/mod_pubsub/pubsub.lib.lua b/plugins/mod_pubsub/pubsub.lib.lua
index 2b015e34..4e9acd68 100644
--- a/plugins/mod_pubsub/pubsub.lib.lua
+++ b/plugins/mod_pubsub/pubsub.lib.lua
@@ -42,8 +42,8 @@ function handlers.get_items(origin, stanza, items, service)
 	end
 
 	local data = st.stanza("items", { node = node });
-	for _, entry in pairs(results) do
-		data:add_child(entry);
+	for _, id in ipairs(results) do
+		data:add_child(results[id]);
 	end
 	local reply;
 	if data then
diff --git a/util/pubsub.lua b/util/pubsub.lua
index 0dfd196b..e0d428c0 100644
--- a/util/pubsub.lua
+++ b/util/pubsub.lua
@@ -258,6 +258,7 @@ function service:publish(node, actor, id, item)
 		end
 		node_obj = self.nodes[node];
 	end
+	node_obj.data[#node_obj.data + 1] = id;
 	node_obj.data[id] = item;
 	self.events.fire_event("item-published", { node = node, actor = actor, id = id, item = item });
 	self.config.broadcaster("items", node, node_obj.subscribers, item);
@@ -275,6 +276,12 @@ function service:retract(node, actor, id, retract)
 		return false, "item-not-found";
 	end
 	node_obj.data[id] = nil;
+	for i, _id in ipairs(node_obj.data) do
+		if id == _id then
+			table.remove(node_obj, i);
+			break;
+		end
+	end
 	if retract then
 		self.config.broadcaster("items", node, node_obj.subscribers, retract);
 	end
@@ -309,7 +316,7 @@ function service:get_items(node, actor, id)
 		return false, "item-not-found";
 	end
 	if id then -- Restrict results to a single specific item
-		return true, { [id] = node_obj.data[id] };
+		return true, { id, [id] = node_obj.data[id] };
 	else
 		return true, node_obj.data;
 	end
-- 
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