Add subscribe_room_many command

src/mod_muc_admin.erl

@@ -40,8 +40,11 @@
 	 change_room_option/4, get_room_options/2,
 	 set_room_affiliation/4, get_room_affiliations/2, get_room_affiliation/3,
 	 web_menu_main/2, web_page_main/2, web_menu_host/3,
-	 subscribe_room/4, unsubscribe_room/2, get_subscribers/2,
+	 subscribe_room/4, subscribe_room_many/3,
-	 web_page_host/3, mod_options/1, get_commands_spec/0, find_hosts/1]).
+         unsubscribe_room/2, get_subscribers/2,
+         web_page_host/3,
+         mod_opt_type/1, mod_options/1,
+         get_commands_spec/0, find_hosts/1]).
 
 -include("logger.hrl").
 -include_lib("xmpp/include/xmpp.hrl").
@@ -331,6 +334,25 @@ get_commands_spec() ->
 			args = [{user, binary}, {nick, binary}, {room, binary},
 				{nodes, binary}],
 			result = {nodes, {list, {node, string}}}},
+     #ejabberd_commands{name = subscribe_room_many, tags = [muc_room],
+			desc = "Subscribe several users to a MUC conference",
+			module = ?MODULE, function = subscribe_room_many,
+			args_desc = ["Users JIDs and nicks",
+                                     "the room to subscribe",
+                                     "nodes separated by commas: ,"],
+			args_example = [[{"tom@localhost", "Tom"},
+                                         {"jerry@localhost", "Jerry"}],
+                                        "room1@conference.localhost",
+                                        "urn:xmpp:mucsub:nodes:messages,urn:xmpp:mucsub:nodes:affiliations"],
+			args = [{users, {list,
+                                         {user, {tuple,
+                                                 [{jid, binary},
+                                                  {nick, binary}
+                                                 ]}}
+                                        }},
+                                {room, binary},
+				{nodes, binary}],
+			result = {res, rescode}},
      #ejabberd_commands{name = unsubscribe_room, tags = [muc_room],
 			desc = "Unsubscribe from a MUC conference",
 			module = ?MODULE, function = unsubscribe_room,
@@ -1331,6 +1353,18 @@ subscribe_room(User, Nick, Room, Nodes) ->
 	    throw({error, "Malformed room JID"})
     end.
 
+subscribe_room_many(Users, Room, Nodes) ->
+    MaxUsers = mod_muc_admin_opt:subscribe_room_many_max_users(global),
+    if
+        length(Users) > MaxUsers ->
+            throw({error, "Too many users in subscribe_room_many command"});
+        true ->
+            lists:foreach(
+              fun({User, Nick}) ->
+                      subscribe_room(User, Nick, Room, Nodes)
+              end, Users)
+    end.
+
 unsubscribe_room(User, Room) ->
     try jid:decode(Room) of
 	#jid{luser = Name, lserver = Host} when Name /= <<"">> ->
@@ -1413,7 +1447,11 @@ find_hosts(ServerHost) ->
 	    []
     end.
 
-mod_options(_) -> [].
+mod_opt_type(subscribe_room_many_max_users) ->
+    econf:int().
+
+mod_options(_) ->
+    [{subscribe_room_many_max_users, 50}].
 
 mod_doc() ->
     #{desc =>

src/mod_muc_admin_opt.erl

@@ -0,0 +1,13 @@
+%% Generated automatically
+%% DO NOT EDIT: run `make options` instead
+
+-module(mod_muc_admin_opt).
+
+-export([subscribe_room_many_max_users/1]).
+
+-spec subscribe_room_many_max_users(gen_mod:opts() | global | binary()) -> integer().
+subscribe_room_many_max_users(Opts) when is_map(Opts) ->
+    gen_mod:get_opt(subscribe_room_many_max_users, Opts);
+subscribe_room_many_max_users(Host) ->
+    gen_mod:get_module_opt(Host, mod_muc_admin, subscribe_room_many_max_users).
+