Add support for MUC room vCard in get_vcard commands

src/mod_admin_extra.erl

@@ -1149,12 +1149,35 @@ set_vcard(User, Host, Name, SomeContent) ->
 set_vcard(User, Host, Name, Subname, SomeContent) ->
     set_vcard_content(User, Host, [Name, Subname], SomeContent).
 
+%%
+%% Room vcard
+
+is_muc_service(Domain) ->
+    try mod_muc_admin:get_room_serverhost(Domain) of
+        Domain -> false;
+        Service when is_binary(Service) -> true
+    catch _:{unregistered_route, _} ->
+            throw(error_wrong_hostname)
+    end.
+
+get_room_vcard(Name, Service) ->
+    case mod_muc_admin:get_room_options(Name, Service) of
+        [] ->
+            throw(error_no_vcard_found);
+        Opts ->
+            case lists:keyfind(<<"vcard">>, 1, Opts) of
+                false ->
+                    throw(error_no_vcard_found);
+                {_, VCardRaw} ->
+                    [fxml_stream:parse_element(VCardRaw)]
+            end
+    end.
 
 %%
 %% Internal vcard
 
 get_vcard_content(User, Server, Data) ->
-    case mod_vcard:get_vcard(jid:nodeprep(User), jid:nameprep(Server)) of
+    case get_vcard_element(User, Server) of
 	[El|_] ->
 	    case get_vcard(Data, El) of
 		[false] -> throw(error_no_value_found_in_vcard);
@@ -1166,6 +1189,14 @@ get_vcard_content(User, Server, Data) ->
 	    throw(database_failure)
     end.
 
+get_vcard_element(User, Server) ->
+    case is_muc_service(Server) of
+        true ->
+           get_room_vcard(User, Server);
+        false ->
+           mod_vcard:get_vcard(jid:nodeprep(User), jid:nameprep(Server))
+    end.
+
 get_vcard([<<"TEL">>, TelType], {_, _, _, OldEls}) ->
     {TakenEl, _NewEls} = take_vcard_tel(TelType, OldEls, [], not_found),
     [TakenEl];

src/mod_muc_admin.erl

@@ -42,6 +42,7 @@
 	 web_menu_main/2, web_page_main/2, web_menu_host/3,
 	 subscribe_room/4, subscribe_room_many/3,
          unsubscribe_room/2, get_subscribers/2,
+         get_room_serverhost/1,
          web_page_host/3,
          mod_opt_type/1, mod_options/1,
          get_commands_spec/0, find_hosts/1]).