mod_rest: Add JSON mapping of XEP-0128: Service Discovery Extensions Example XEP-0157 payload: { "disco" : { "extensions" : { "http://jabber.org/network/serverinfo" : { "abuse-addresses" : [ "mailto:abuse@shakespeare.lit", "xmpp:abuse@shakespeare.lit" ], "admin-addresses" : [ "mailto:admin@shakespeare.lit", "xmpp:admin@shakespeare.lit" ], "feedback-addresses" : [ "http://shakespeare.lit/feedback.php", "mailto:feedback@shakespeare.lit", "xmpp:feedback@shakespeare.lit" ], "sales-addresses" : [ "xmpp:bard@shakespeare.lit" ], "security-addresses" : [ "xmpp:security@shakespeare.lit" ], "support-addresses" : [ "http://shakespeare.lit/support.php", "xmpp:support@shakespeare.lit" ] } } } }

--- a/mod_rest/README.markdown	Sat Mar 21 18:05:22 2020 +0100
+++ b/mod_rest/README.markdown	Mon Mar 23 19:03:04 2020 +0100
@@ -375,6 +375,11 @@
     items list query. The response contain an array of items like
     `{"jid":"xmpp.address.here","name":"Description of item"}`.
 
+`extensions`
+:   Map of extended feature discovery (see [XEP-0128]) data with
+    `FORM_DATA` fields as the keys pointing at maps with the rest of the
+    data.
+
 #### Ad-Hoc Commands
 
 Used to execute arbitrary commands on supporting entities.