mod_pubsub_post: Fix use of 'id' field in JSON object as pubsub item id
`data` here is the source string, so there's no `id` field.
Also only use the `id` field if it's a string.
--- a/mod_pubsub_post/mod_pubsub_post.lua Mon Dec 30 22:44:12 2019 +0100
+++ b/mod_pubsub_post/mod_pubsub_post.lua Wed Jan 01 10:11:08 2020 +0100
@@ -43,7 +43,7 @@
return { status_code = 400; body = "object or array expected"; };
end
local wrapper = st.stanza("json", { xmlns="urn:xmpp:json:0" }):text(data);
- return publish_payload(node, actor, data.id or "current", wrapper);
+ return publish_payload(node, actor, type(parsed.id) == "string" and parsed.id or "current", wrapper);
end
local function publish_atom(node, actor, feed)