# HG changeset patch
# User Kim Alvefur <zash@zash.se>
# Date 1531589726 -7200
# Node ID e993fad0cc62bde1ef67ec01251d5af57aa4510d
# Parent  0124e5ec1556af098241dbcf43080ecdcbe6d799
mod_pubsub: Add support for retrieving subscription options

diff -r 0124e5ec1556 -r e993fad0cc62 plugins/mod_pubsub/pubsub.lib.lua
--- a/plugins/mod_pubsub/pubsub.lib.lua	Sat Jul 14 19:34:10 2018 +0200
+++ b/plugins/mod_pubsub/pubsub.lib.lua	Sat Jul 14 19:35:26 2018 +0200
@@ -433,6 +433,26 @@
 	return true;
 end
 
+function handlers.get_options(origin, stanza, options, service)
+	local node, jid = options.attr.node, options.attr.jid;
+	jid = jid_prep(jid);
+	if not (node and jid) then
+		origin.send(pubsub_error_reply(stanza, jid and "nodeid-required" or "invalid-jid"));
+		return true;
+	end
+	local ok, ret = service:get_subscription(node, stanza.attr.from, jid);
+	if not ok then
+		origin.send(pubsub_error_reply(stanza, "not-subscribed"));
+		return true;
+	end
+	if ret == true then ret = {} end
+	origin.send(st.reply(stanza)
+		:tag("pubsub", { xmlns = xmlns_pubsub })
+			:tag("options", { node = node, jid = jid })
+				:add_child(options_form:form(ret)));
+	return true;
+end
+
 function handlers.set_publish(origin, stanza, publish, service)
 	local node = publish.attr.node;
 	if not node then