Chapril/xmpp.chapril.org-ejabberd
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Add option user_mucsub_from_muc_archive to mod_muc

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This option disable storing separate mucsub message for each individual
subscriber but instead when user fetches archive virtual mucsub messages
are generated from muc archives.
This commit is contained in:
Paweł Chmielowski 2019-03-28 17:42:25 +01:00
parent 063869603a
commit 8e05fd1d24
4 changed files with 150 additions and 18 deletions
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133
src/mod_mam.erl
View File

@ -76,8 +76,12 @@
-callback remove_from_archive(binary(), binary(), jid() | none) -> ok | {error, any()}.
-callback is_empty_for_user(binary(), binary()) -> boolean().
-callback is_empty_for_room(binary(), binary(), binary()) -> boolean().
-callback select_with_mucsub(binary(), jid(), jid(), mam_query:result(),
#rsm_set{} | undefined) ->
{[{binary(), non_neg_integer(), xmlel()}], boolean(), count()} |
{error, db_failure}.
-optional_callbacks([use_cache/1, cache_nodes/1]).
-optional_callbacks([use_cache/1, cache_nodes/1, select_with_mucsub/5]).
%%%===================================================================
%%% API
@ -886,16 +890,20 @@ may_enter_room(From, MUCState) ->
store_msg(Pkt, LUser, LServer, Peer, Dir) ->
case get_prefs(LUser, LServer) of
{ok, Prefs} ->
case {should_archive_peer(LUser, LServer, Prefs, Peer), Pkt} of
{true, #message{meta = #{sm_copy := true}}} ->
UseMucArchive = gen_mod:get_module_opt(LServer, ?MODULE, user_mucsub_from_muc_archive),
StoredInMucMam = UseMucArchive andalso xmpp:get_meta(Pkt, in_muc_mam, false),
case {should_archive_peer(LUser, LServer, Prefs, Peer), Pkt, StoredInMucMam} of
{true, #message{meta = #{sm_copy := true}}, _} ->
ok; % Already stored.
{true, _} ->
{true, _, true} ->
ok; % Stored in muc archive.
{true, _, _} ->
case ejabberd_hooks:run_fold(store_mam_message, LServer, Pkt,
[LUser, LServer, Peer, <<"">>, chat, Dir]) of
#message{} -> ok;
_ -> pass
end;
{false, _} ->
{false, _, _} ->
pass
end;
{error, _} ->
@ -1073,10 +1081,118 @@ select(LServer, JidRequestor, JidArchive, Query, RSM, MsgType) ->
true ->
{[], true, 0};
false ->
Mod = gen_mod:db_mod(LServer, ?MODULE),
Mod:select(LServer, JidRequestor, JidArchive, Query, RSM, MsgType)
case {MsgType, gen_mod:get_module_opt(LServer, ?MODULE, user_mucsub_from_muc_archive)} of
{chat, true} ->
select_with_mucsub(LServer, JidRequestor, JidArchive, Query, RSM);
_ ->
Mod = gen_mod:db_mod(LServer, ?MODULE),
Mod:select(LServer, JidRequestor, JidArchive, Query, RSM, MsgType)
end
end.
select_with_mucsub(LServer, JidRequestor, JidArchive, Query, RSM) ->
MucHosts = mod_muc_admin:find_hosts(LServer),
Mod = gen_mod:db_mod(LServer, ?MODULE),
case proplists:get_value(with, Query) of
#jid{lserver = WithLServer} = MucJid ->
case lists:member(WithLServer, MucHosts) of
true ->
select(LServer, JidRequestor, MucJid, Query, RSM,
{groupchat, member, #state{config = #config{mam = true}}});
_ ->
Mod:select(LServer, JidRequestor, JidArchive, Query, RSM, chat)
end;
_ ->
case erlang:function_exported(Mod, select_with_mucsub, 5) of
true ->
Mod:select_with_mucsub(LServer, JidRequestor, JidArchive, Query, RSM);
false ->
case Mod:select(LServer, JidRequestor, JidArchive, Query, RSM, chat) of
{error, _} = Err ->
Err;
{Entries, All, Count} ->
{Dir, Max} = case RSM of
#rsm_set{max = M, before = V} when is_binary(V) ->
{desc, M};
#rsm_set{max = M} ->
{asc, M};
_ ->
{asc, undefined}
end,
SubRooms = case mod_muc_admin:find_hosts(LServer) of
[First|_] ->
mod_muc:get_subscribed_rooms(First, JidRequestor);
_ ->
[]
end,
SubRoomJids = [Jid || #muc_subscription{jid = Jid} <- SubRooms],
{E2, A2, C2} = lists:foldl(
fun(MucJid, {E0, A0, C0}) ->
case select(LServer, JidRequestor, MucJid, Query, RSM,
{groupchat, member, #state{config = #config{mam = true}}}) of
{error, _} ->
{E0, A0, C0};
{E, A, C} ->
{lists:keymerge(2, E0, wrap_as_mucsub(E, JidRequestor)),
A0 andalso A, C0 + C}
end
end, {Entries, All, Count}, SubRoomJids),
case {Dir, Max} of
{_, undefined} ->
{E2, A2, C2};
{desc, _} ->
Start = case length(E2) of
Len when Len < Max -> 1;
Len -> Len - Max + 1
end,
Sub = lists:sublist(E2, Start, Max),
{Sub, if Sub == E2 -> A2; true -> false end, C2};
_ ->
Sub = lists:sublist(E2, 1, Max),
{Sub, if Sub == E2 -> A2; true -> false end, C2}
end
end
end
end.
wrap_as_mucsub(Messages, #jid{lserver = LServer} = Requester) ->
ReqBare = jid:remove_resource(Requester),
ReqServer = jid:make(<<>>, LServer, <<>>),
[{T1, T2, wrap_as_mucsub(M, ReqBare, ReqServer)} || {T1, T2, M} <- Messages].
wrap_as_mucsub(Message, Requester, ReqServer) ->
case Message of
#forwarded{delay = #delay{stamp = Stamp, desc = Desc},
sub_els = [#message{from = From, sub_els = SubEls} = Msg]} ->
{L1, SubEls2} = case lists:keytake(mam_archived, 1, xmpp:decode(SubEls)) of
{value, Arch, Rest} ->
{[Arch#mam_archived{by = Requester}], Rest};
_ ->
{[], SubEls}
end,
{Sid, L2, SubEls3} = case lists:keytake(stanza_id, 1, SubEls2) of
{value, #stanza_id{id = Sid0} = SID, Rest2} ->
{Sid0, [SID#stanza_id{by = Requester} | L1], Rest2};
_ ->
{p1_rand:get_string(), L1, SubEls2}
end,
Msg2 = Msg#message{to = Requester, sub_els = SubEls3},
#forwarded{delay = #delay{stamp = Stamp, desc = Desc, from = ReqServer},
sub_els = [
#message{from = jid:remove_resource(From), to = Requester,
id = Sid,
sub_els = [#ps_event{
items = #ps_items{
node = ?NS_MUCSUB_NODES_MESSAGES,
items = [#ps_item{
id = Sid,
sub_els = [Msg2]
}]}} | L2]}]};
_ ->
Message
end.
msg_to_el(#archive_msg{timestamp = TS, packet = El, nick = Nick,
peer = Peer, id = ID},
MsgType, JidRequestor, #jid{lserver = LServer} = JidArchive) ->
@ -1265,6 +1381,8 @@ mod_opt_type(request_activates_archiving) ->
fun (B) when is_boolean(B) -> B end;
mod_opt_type(clear_archive_on_room_destroy) ->
fun (B) when is_boolean(B) -> B end;
mod_opt_type(user_mucsub_from_muc_archive) ->
fun (B) when is_boolean(B) -> B end;
mod_opt_type(access_preferences) ->
fun acl:access_rules_validator/1.
@ -1275,6 +1393,7 @@ mod_options(Host) ->
{compress_xml, false},
{clear_archive_on_room_destroy, true},
{access_preferences, all},
{user_mucsub_from_muc_archive, false},
{db_type, ejabberd_config:default_db(Host, ?MODULE)},
{use_cache, ejabberd_config:use_cache(Host)},
{cache_size, ejabberd_config:cache_size(Host)},

8
src/mod_muc.erl
View File

@ -65,7 +65,8 @@
iq_set_register_info/5,
count_online_rooms_by_user/3,
get_online_rooms_by_user/3,
can_use_nick/4]).
can_use_nick/4,
get_subscribed_rooms/2]).
-export([init/1, handle_call/3, handle_cast/2,
handle_info/2, terminate/2, code_change/3,
@ -727,6 +728,11 @@ get_room_disco_item({Name, Host, Pid}, Query) ->
{error, notfound}
end.
-spec get_subscribed_rooms(binary(), jid()) -> [#muc_subscription{}].
get_subscribed_rooms(Host, User) ->
ServerHost = ejabberd_router:host_of_route(Host),
get_subscribed_rooms(ServerHost, Host, User).
get_subscribed_rooms(ServerHost, Host, From) ->
LServer = jid:nameprep(ServerHost),
Mod = gen_mod:db_mod(LServer, ?MODULE),

10
src/mod_muc_admin.erl
View File

@ -28,7 +28,7 @@
-behaviour(gen_mod).
-export([start/2, stop/1, reload/3, depends/2,
-export([start/2, stop/1, reload/3, depends/2,
muc_online_rooms/1, muc_online_rooms_by_regex/2,
muc_register_nick/3, muc_unregister_nick/2,
create_room_with_opts/4, create_room/3, destroy_room/2,
@ -41,7 +41,7 @@
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,
web_page_host/3, mod_options/1, get_commands_spec/0]).
web_page_host/3, mod_options/1, get_commands_spec/0, find_hosts/1]).
-include("logger.hrl").
-include("xmpp.hrl").
@ -100,18 +100,18 @@ get_commands_spec() ->
desc = "List existing rooms ('global' to get all vhosts) by regex",
policy = admin,
module = ?MODULE, function = muc_online_rooms_by_regex,
args_desc = ["Server domain where the MUC service is, or 'global' for all",
args_desc = ["Server domain where the MUC service is, or 'global' for all",
"Regex pattern for room name"],
args_example = ["example.com", "^prefix"],
result_desc = "List of rooms with summary",
result_example = [{"room1@muc.example.com", "true", 10},
result_example = [{"room1@muc.example.com", "true", 10},
{"room2@muc.example.com", "false", 10}],
args = [{host, binary}, {regex, binary}],
result = {rooms, {list, {room, {tuple,
[{jid, string},
{public, string},
{participants, integer}
]}}}}},
]}}}}},
#ejabberd_commands{name = muc_register_nick, tags = [muc],
desc = "Register a nick to a User JID in the MUC service of a server",
module = ?MODULE, function = muc_register_nick,

17
src/mod_muc_room.erl
View File

@ -4397,9 +4397,17 @@ send_wrapped(From, To, Packet, Node, State) ->
#subscriber{nodes = Nodes, jid = JID} ->
case lists:member(Node, Nodes) of
true ->
NewPacket = wrap(From, JID, Packet, Node),
MamEnabled = (State#state.config)#config.mam,
Id = case xmpp:get_subtag(Packet, #stanza_id{}) of
#stanza_id{id = Id2} ->
Id2;
_ ->
p1_rand:get_string()
end,
NewPacket = wrap(From, JID, Packet, Node, Id),
NewPacket2 = xmpp:put_meta(NewPacket, in_muc_mam, MamEnabled),
ejabberd_router:route(
xmpp:set_from_to(NewPacket, State#state.jid, JID));
xmpp:set_from_to(NewPacket2, State#state.jid, JID));
false ->
ok
end
@ -4432,10 +4440,9 @@ send_wrapped(From, To, Packet, Node, State) ->
ejabberd_router:route(xmpp:set_from_to(Packet, From, To))
end.
-spec wrap(jid(), jid(), stanza(), binary()) -> message().
wrap(From, To, Packet, Node) ->
-spec wrap(jid(), jid(), stanza(), binary(), binary()) -> message().
wrap(From, To, Packet, Node, Id) ->
El = xmpp:set_from_to(Packet, From, To),
Id = p1_rand:get_string(),
#message{
id = Id,
sub_els = [#ps_event{