Add configurable default room bookmarks for new users

app/jobs/xmpp_set_default_bookmarks_job.rb

@@ -0,0 +1,26 @@
+class XmppSetDefaultBookmarksJob < ApplicationJob
+  queue_as :default
+
+  def perform(user)
+    return unless Setting.xmpp_default_rooms.any?
+    @user = user
+    ejabberd = EjabberdApiClient.new
+    ejabberd.private_set user, storage_content
+  end
+
+  def storage_content
+    bookmarks = ""
+    Setting.xmpp_default_rooms.each do |r|
+      bookmarks << conference_element(
+        jid: r[/<(.+)>/, 1], name: r[/^(.+)\s/, 1], nick: @user.cn,
+        autojoin: Setting.xmpp_autojoin_default_rooms
+      )
+    end
+
+    "<storage xmlns='storage:bookmarks'>#{bookmarks}</storage>"
+  end
+
+  def conference_element(jid:, name:, autojoin: false, nick:)
+    "<conference jid='#{jid}' name='#{name}' autojoin='#{autojoin.to_s}'><nick>#{nick}</nick></conference>"
+  end
+end