Add setting for contact roster name

And only exchange contacts when ejabberd integration is enabled

app/jobs/xmpp_exchange_contacts_job.rb

@@ -7,12 +7,12 @@ class XmppExchangeContactsJob < ApplicationJob
     ejabberd.add_rosteritem({
       "localuser": username, "localhost": domain,
       "user": inviter.cn, "host": inviter.ou,
-      "nick": inviter.cn, "group": "Friends", "subs": "both"
+      "nick": inviter.cn, "group": Setting.ejabberd_buddy_roster, "subs": "both"
     })
     ejabberd.add_rosteritem({
       "localuser": inviter.cn, "localhost": inviter.ou,
       "user": username, "host": domain,
-      "nick": username, "group": "Friends", "subs": "both"
+      "nick": username, "group": Setting.ejabberd_buddy_roster, "subs": "both"
     })
   end
 end

app/services/create_account.rb

@@ -15,7 +15,7 @@ class CreateAccount < ApplicationService
 
     if @invitation.present?
       update_invitation(user.id)
-      exchange_xmpp_contacts
+      exchange_xmpp_contacts if Setting.ejabberd_enabled
     end
   end
 

app/views/admin/settings/services/_ejabberd.html.erb

@@ -18,5 +18,13 @@
         value: Setting.ejabberd_admin_url,
         class: "w-full", disabled: true %>
     <% end %>
+    <%= render FormElements::FieldsetComponent.new(
+          title: "Contact roster name",
+          description: "Used when exchanging contacts after signup from invitation"
+        ) do %>
+      <%= f.text_field :ejabberd_buddy_roster,
+        value: Setting.ejabberd_buddy_roster,
+        class: "w-full" %>
+    <% end %>
   <% end %>
 </ul>