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mod_inbox_muclight.erl
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%%%-------------------------------------------------------------------
%%% @author dedaldino3D
%%% @copyright All rights reserved
%%% @doc
%%%
%%% @end
%%% Created : ...
%%%-------------------------------------------------------------------
-module(mod_inbox_muclight).
-author({"dedaldino3D", "[email protected]"}).
% -include("xmpp/include/xmpp.hrl").
-include("xmpp.hrl").
-include("logger.hrl").
-include("mod_muc_light.hrl").
-include("mod_inbox.hrl").
-export([handle_outgoing_message/4, handle_incoming_message/4]).
-type packet() :: xmlel().
-type role() :: r_member() | r_owner() | r_none().
-type r_member() :: binary().
-type r_owner() :: binary().
-type r_none() :: binary().
-spec handle_outgoing_message(Host :: jid:server(),
User :: jid:jid(),
Room :: jid:jid(),
Packet :: packet()) -> any().
handle_outgoing_message(Host, User, Room, Packet) ->
maybe_reset_unread_count(Host, User, Room, Packet).
-spec handle_incoming_message(Host :: jid:server(),
RoomUser :: jid:jid(),
Remote :: jid:jid(),
Packet :: packet()) -> any().
handle_incoming_message(Host, RoomUser, Remote, Packet) ->
case mod_inbox_utils:has_chat_marker(Packet) of
true ->
%% don't store chat markers in inbox
ok;
false ->
maybe_handle_system_message(Host, RoomUser, Remote, Packet)
end.
maybe_reset_unread_count(Host, User, Room, Packet) ->
mod_inbox_utils:maybe_reset_unread_count(Host, User, Room, Packet).
-spec maybe_handle_system_message(Host :: host(),
RoomOrUser :: jid:jid(),
Receiver :: jid:jid(),
Packet :: xmlel()) -> ok.
maybe_handle_system_message(Host, RoomOrUser, Receiver, Packet) ->
case is_system_message(RoomOrUser, Receiver, Packet) of
true ->
handle_system_message(Host, RoomOrUser, Receiver, Packet);
_ ->
Sender = jid:from_string(RoomOrUser#jid.lresource),
write_to_inbox(Host, RoomOrUser, Receiver, Sender, Packet)
end.
-spec handle_system_message(Host :: host(),
Room :: jid:jid(),
Remote :: jid:jid(),
Packet :: xmlel()) -> ok.
handle_system_message(Host, Room, Remote, Packet) ->
case system_message_type(Remote, Packet) of
kick ->
handle_kicked_message(Host, Room, Remote, Packet);
invite ->
handle_invitation_message(Host, Room, Remote, Packet);
other ->
?LOG_DEBUG(#{what => irrelevant_system_message_for_mod_inbox_muclight,
room => Room, exml_packet => Packet}),
ok
end.
-spec handle_invitation_message(Host :: host(),
Room :: jid:jid(),
Remote :: jid:jid(),
Packet :: xmlel()) -> ok.
handle_invitation_message(Host, Room, Remote, Packet) ->
maybe_store_system_message(Host, Room, Remote, Packet).
-spec handle_kicked_message(Host :: host(),
Room :: jid:jid(),
Remote :: jid:jid(),
Packet :: xmlel()) -> ok.
handle_kicked_message(Host, Room, Remote, Packet) ->
CheckRemove = mod_inbox_utils:get_option_remove_on_kicked(Host),
maybe_store_system_message(Host, Room, Remote, Packet),
maybe_remove_inbox_row(Host, Room, Remote, CheckRemove).
-spec maybe_store_system_message(Host :: host(),
Room :: jid:jid(),
Remote :: jid:jid(),
Packet :: xmlel()) -> ok.
maybe_store_system_message(Host, Room, Remote, Packet) ->
WriteAffChanges = mod_inbox_utils:get_option_write_aff_changes(Host),
case WriteAffChanges of
true ->
write_to_inbox(Host, Room, Remote, Room, Packet);
false ->
ok
end.
-spec maybe_remove_inbox_row(Host :: host(),
Room :: jid:jid(),
Remote :: jid:jid(),
WriteAffChanges :: boolean()) -> ok.
maybe_remove_inbox_row(_, _, _, false) ->
ok;
maybe_remove_inbox_row(Host, Room, Remote, true) ->
UserBin = (jid:remove_resource(Remote))#jid.luser,
RoomBin = jid:to_string(Room),
ok = mod_inbox_backend:remove_inbox(UserBin, Host, RoomBin).
-spec write_to_inbox(Server :: host(),
RoomUser :: jid:jid(),
Remote :: jid:jid(),
Sender :: jid:jid(),
Packet :: xmlel()) -> ok.
write_to_inbox(Server, RoomUser, Remote, Remote, Packet) ->
mod_inbox_utils:write_to_sender_inbox(Server, Remote, RoomUser, Packet);
write_to_inbox(Server, RoomUser, Remote, _Sender, Packet) ->
mod_inbox_utils:write_to_receiver_inbox(Server, RoomUser, Remote, Packet).
%%%%%%%%%%%%%%%%%%%%%%
%% Predicate funs
%% @doc Check if sender is just '[email protected]' with no resource
%% TODO: Replace sender domain check with namespace check - current logic won't handle all cases!
-spec is_system_message(Sender :: jid:jid(),
Receiver :: jid:jid(),
Packet :: xmlel()) -> boolean().
is_system_message(Sender, Receiver, Packet) ->
ReceiverDomain = Receiver#jid.lserver,
MUCLightDomain = gen_mod:get_module_opt_subhost(ReceiverDomain, mod_muc_light,
mod_muc_light:default_host()),
case {Sender#jid.lserver, Sender#jid.lresource} of
{MUCLightDomain, <<>>} ->
true;
{MUCLightDomain, _RoomUser} ->
false;
Other ->
?LOG_WARNING(#{what => inbox_muclight_unknown_message, packet => Packet,
sender => jid:to_string(Sender), receiver => jid:to_string(Receiver)})
end.
-spec is_change_aff_message(jid:jid(), xmlel(), role()) -> boolean().
is_change_aff_message(User, Packet, Role) ->
AffItems = exml_query:paths(Packet, [{element_with_ns, ?NS_MUC_LIGHT_AFFILIATIONS},
{element, <<"user">>}]),
AffList = get_users_with_affiliation(AffItems, Role),
Jids = [Jid || #xmlel{children = [#xmlcdata{content = Jid}]} <- AffList],
UserBin = jid:to_string(jid:tolower(jid:remove_resource(User))),
lists:member(UserBin, Jids).
-spec system_message_type(User :: jid:jid(), Packet :: xmlel()) -> invite | kick | other.
system_message_type(User, Packet) ->
IsInviteMsg = is_invitation_message(User, Packet),
IsNewOwnerMsg = is_new_owner_message(User, Packet),
IsKickedMsg = is_kicked_message(User, Packet),
if IsInviteMsg orelse IsNewOwnerMsg ->
invite;
IsKickedMsg ->
kick;
true ->
other
end.
-spec is_invitation_message(jid:jid(), xmlel()) -> boolean().
is_invitation_message(User, Packet) ->
is_change_aff_message(User, Packet, <<"member">>).
-spec is_new_owner_message(jid:jid(), xmlel()) -> boolean().
is_new_owner_message(User, Packet) ->
is_change_aff_message(User, Packet, <<"owner">>).
-spec is_kicked_message(jid:jid(), xmlel()) -> boolean().
is_kicked_message(User, Packet) ->
is_change_aff_message(User, Packet, <<"none">>).
-spec get_users_with_affiliation(list(xmlel()), role()) -> list(xmlel()).
get_users_with_affiliation(AffItems, Role) ->
[M || #xmlel{name = <<"user">>, attrs = [{<<"affiliation">>, R}]} = M <- AffItems, R == Role].