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xmpp.chapril.org-ejabberd/src/mod_announce.erl
Mickael Remond dfc29ea03c Switch to Fast XML module
2016-02-03 19:03:17 +01:00

1151 lines
38 KiB
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%%%----------------------------------------------------------------------
%%% File : mod_announce.erl
%%% Author : Alexey Shchepin <alexey@process-one.net>
%%% Purpose : Manage announce messages
%%% Created : 11 Aug 2003 by Alexey Shchepin <alexey@process-one.net>
%%%
%%%
%%% ejabberd, Copyright (C) 2002-2016 ProcessOne
%%%
%%% This program is free software; you can redistribute it and/or
%%% modify it under the terms of the GNU General Public License as
%%% published by the Free Software Foundation; either version 2 of the
%%% License, or (at your option) any later version.
%%%
%%% This program is distributed in the hope that it will be useful,
%%% but WITHOUT ANY WARRANTY; without even the implied warranty of
%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
%%% General Public License for more details.
%%%
%%% You should have received a copy of the GNU General Public License along
%%% with this program; if not, write to the Free Software Foundation, Inc.,
%%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
%%%
%%%----------------------------------------------------------------------
%%% Implements a small subset of XEP-0133: Service Administration
%%% Version 1.1 (2005-08-19)
-module(mod_announce).
-author('alexey@process-one.net').
-behaviour(gen_mod).
-export([start/2, init/0, stop/1, export/1, import/1,
import/3, announce/3, send_motd/1, disco_identity/5,
disco_features/5, disco_items/5,
send_announcement_to_all/3, announce_commands/4,
announce_items/4, mod_opt_type/1]).
-include("ejabberd.hrl").
-include("logger.hrl").
-include("jlib.hrl").
-include("adhoc.hrl").
-record(motd, {server = <<"">> :: binary(),
packet = #xmlel{} :: xmlel()}).
-record(motd_users, {us = {<<"">>, <<"">>} :: {binary(), binary()} | '$1',
dummy = [] :: [] | '_'}).
-define(PROCNAME, ejabberd_announce).
-define(NS_ADMINL(Sub), [<<"http:">>, <<"jabber.org">>, <<"protocol">>,
<<"admin">>, <<Sub>>]).
tokenize(Node) -> str:tokens(Node, <<"/#">>).
start(Host, Opts) ->
case gen_mod:db_type(Host, Opts) of
mnesia ->
mnesia:create_table(motd,
[{disc_copies, [node()]},
{attributes,
record_info(fields, motd)}]),
mnesia:create_table(motd_users,
[{disc_copies, [node()]},
{attributes,
record_info(fields, motd_users)}]),
update_tables();
_ ->
ok
end,
ejabberd_hooks:add(local_send_to_resource_hook, Host,
?MODULE, announce, 50),
ejabberd_hooks:add(disco_local_identity, Host, ?MODULE, disco_identity, 50),
ejabberd_hooks:add(disco_local_features, Host, ?MODULE, disco_features, 50),
ejabberd_hooks:add(disco_local_items, Host, ?MODULE, disco_items, 50),
ejabberd_hooks:add(adhoc_local_items, Host, ?MODULE, announce_items, 50),
ejabberd_hooks:add(adhoc_local_commands, Host, ?MODULE, announce_commands, 50),
ejabberd_hooks:add(user_available_hook, Host,
?MODULE, send_motd, 50),
register(gen_mod:get_module_proc(Host, ?PROCNAME),
proc_lib:spawn(?MODULE, init, [])).
init() ->
loop().
loop() ->
receive
{announce_all, From, To, Packet} ->
announce_all(From, To, Packet),
loop();
{announce_all_hosts_all, From, To, Packet} ->
announce_all_hosts_all(From, To, Packet),
loop();
{announce_online, From, To, Packet} ->
announce_online(From, To, Packet),
loop();
{announce_all_hosts_online, From, To, Packet} ->
announce_all_hosts_online(From, To, Packet),
loop();
{announce_motd, From, To, Packet} ->
announce_motd(From, To, Packet),
loop();
{announce_all_hosts_motd, From, To, Packet} ->
announce_all_hosts_motd(From, To, Packet),
loop();
{announce_motd_update, From, To, Packet} ->
announce_motd_update(From, To, Packet),
loop();
{announce_all_hosts_motd_update, From, To, Packet} ->
announce_all_hosts_motd_update(From, To, Packet),
loop();
{announce_motd_delete, From, To, Packet} ->
announce_motd_delete(From, To, Packet),
loop();
{announce_all_hosts_motd_delete, From, To, Packet} ->
announce_all_hosts_motd_delete(From, To, Packet),
loop();
_ ->
loop()
end.
stop(Host) ->
ejabberd_hooks:delete(adhoc_local_commands, Host, ?MODULE, announce_commands, 50),
ejabberd_hooks:delete(adhoc_local_items, Host, ?MODULE, announce_items, 50),
ejabberd_hooks:delete(disco_local_identity, Host, ?MODULE, disco_identity, 50),
ejabberd_hooks:delete(disco_local_features, Host, ?MODULE, disco_features, 50),
ejabberd_hooks:delete(disco_local_items, Host, ?MODULE, disco_items, 50),
ejabberd_hooks:delete(local_send_to_resource_hook, Host,
?MODULE, announce, 50),
ejabberd_hooks:delete(user_available_hook, Host,
?MODULE, send_motd, 50),
Proc = gen_mod:get_module_proc(Host, ?PROCNAME),
exit(whereis(Proc), stop),
{wait, Proc}.
%% Announcing via messages to a custom resource
announce(From, #jid{luser = <<>>} = To, #xmlel{name = <<"message">>} = Packet) ->
Proc = gen_mod:get_module_proc(To#jid.lserver, ?PROCNAME),
case To#jid.lresource of
<<"announce/all">> ->
Proc ! {announce_all, From, To, Packet},
stop;
<<"announce/all-hosts/all">> ->
Proc ! {announce_all_hosts_all, From, To, Packet},
stop;
<<"announce/online">> ->
Proc ! {announce_online, From, To, Packet},
stop;
<<"announce/all-hosts/online">> ->
Proc ! {announce_all_hosts_online, From, To, Packet},
stop;
<<"announce/motd">> ->
Proc ! {announce_motd, From, To, Packet},
stop;
<<"announce/all-hosts/motd">> ->
Proc ! {announce_all_hosts_motd, From, To, Packet},
stop;
<<"announce/motd/update">> ->
Proc ! {announce_motd_update, From, To, Packet},
stop;
<<"announce/all-hosts/motd/update">> ->
Proc ! {announce_all_hosts_motd_update, From, To, Packet},
stop;
<<"announce/motd/delete">> ->
Proc ! {announce_motd_delete, From, To, Packet},
stop;
<<"announce/all-hosts/motd/delete">> ->
Proc ! {announce_all_hosts_motd_delete, From, To, Packet},
stop;
_ ->
ok
end;
announce(_From, _To, _Packet) ->
ok.
%%-------------------------------------------------------------------------
%% Announcing via ad-hoc commands
-define(INFO_COMMAND(Lang, Node),
[#xmlel{name = <<"identity">>,
attrs = [{<<"category">>, <<"automation">>},
{<<"type">>, <<"command-node">>},
{<<"name">>, get_title(Lang, Node)}]}]).
disco_identity(Acc, _From, _To, Node, Lang) ->
LNode = tokenize(Node),
case LNode of
?NS_ADMINL("announce") ->
?INFO_COMMAND(Lang, Node);
?NS_ADMINL("announce-allhosts") ->
?INFO_COMMAND(Lang, Node);
?NS_ADMINL("announce-all") ->
?INFO_COMMAND(Lang, Node);
?NS_ADMINL("announce-all-allhosts") ->
?INFO_COMMAND(Lang, Node);
?NS_ADMINL("set-motd") ->
?INFO_COMMAND(Lang, Node);
?NS_ADMINL("set-motd-allhosts") ->
?INFO_COMMAND(Lang, Node);
?NS_ADMINL("edit-motd") ->
?INFO_COMMAND(Lang, Node);
?NS_ADMINL("edit-motd-allhosts") ->
?INFO_COMMAND(Lang, Node);
?NS_ADMINL("delete-motd") ->
?INFO_COMMAND(Lang, Node);
?NS_ADMINL("delete-motd-allhosts") ->
?INFO_COMMAND(Lang, Node);
_ ->
Acc
end.
%%-------------------------------------------------------------------------
-define(INFO_RESULT(Allow, Feats),
case Allow of
deny ->
{error, ?ERR_FORBIDDEN};
allow ->
{result, Feats}
end).
disco_features(Acc, From, #jid{lserver = LServer} = _To, <<"announce">>, _Lang) ->
case gen_mod:is_loaded(LServer, mod_adhoc) of
false ->
Acc;
_ ->
Access1 = get_access(LServer),
Access2 = get_access(global),
case {acl:match_rule(LServer, Access1, From),
acl:match_rule(global, Access2, From)} of
{deny, deny} ->
{error, ?ERR_FORBIDDEN};
_ ->
{result, []}
end
end;
disco_features(Acc, From, #jid{lserver = LServer} = _To, Node, _Lang) ->
case gen_mod:is_loaded(LServer, mod_adhoc) of
false ->
Acc;
_ ->
Access = get_access(LServer),
Allow = acl:match_rule(LServer, Access, From),
AccessGlobal = get_access(global),
AllowGlobal = acl:match_rule(global, AccessGlobal, From),
case Node of
?NS_ADMIN_ANNOUNCE ->
?INFO_RESULT(Allow, [?NS_COMMANDS]);
?NS_ADMIN_ANNOUNCE_ALL ->
?INFO_RESULT(Allow, [?NS_COMMANDS]);
?NS_ADMIN_SET_MOTD ->
?INFO_RESULT(Allow, [?NS_COMMANDS]);
?NS_ADMIN_EDIT_MOTD ->
?INFO_RESULT(Allow, [?NS_COMMANDS]);
?NS_ADMIN_DELETE_MOTD ->
?INFO_RESULT(Allow, [?NS_COMMANDS]);
?NS_ADMIN_ANNOUNCE_ALLHOSTS ->
?INFO_RESULT(AllowGlobal, [?NS_COMMANDS]);
?NS_ADMIN_ANNOUNCE_ALL_ALLHOSTS ->
?INFO_RESULT(AllowGlobal, [?NS_COMMANDS]);
?NS_ADMIN_SET_MOTD_ALLHOSTS ->
?INFO_RESULT(AllowGlobal, [?NS_COMMANDS]);
?NS_ADMIN_EDIT_MOTD_ALLHOSTS ->
?INFO_RESULT(AllowGlobal, [?NS_COMMANDS]);
?NS_ADMIN_DELETE_MOTD_ALLHOSTS ->
?INFO_RESULT(AllowGlobal, [?NS_COMMANDS]);
_ ->
Acc
end
end.
%%-------------------------------------------------------------------------
-define(NODE_TO_ITEM(Lang, Server, Node),
(
#xmlel{
name = <<"item">>,
attrs = [
{<<"jid">>, Server},
{<<"node">>, Node},
{<<"name">>, get_title(Lang, Node)}
]
}
)).
-define(ITEMS_RESULT(Allow, Items),
case Allow of
deny ->
{error, ?ERR_FORBIDDEN};
allow ->
{result, Items}
end).
disco_items(Acc, From, #jid{lserver = LServer, server = Server} = _To, <<>>, Lang) ->
case gen_mod:is_loaded(LServer, mod_adhoc) of
false ->
Acc;
_ ->
Access1 = get_access(LServer),
Access2 = get_access(global),
case {acl:match_rule(LServer, Access1, From),
acl:match_rule(global, Access2, From)} of
{deny, deny} ->
Acc;
_ ->
Items = case Acc of
{result, I} -> I;
_ -> []
end,
Nodes = [?NODE_TO_ITEM(Lang, Server, <<"announce">>)],
{result, Items ++ Nodes}
end
end;
disco_items(Acc, From, #jid{lserver = LServer} = To, <<"announce">>, Lang) ->
case gen_mod:is_loaded(LServer, mod_adhoc) of
false ->
Acc;
_ ->
announce_items(Acc, From, To, Lang)
end;
disco_items(Acc, From, #jid{lserver = LServer} = _To, Node, _Lang) ->
case gen_mod:is_loaded(LServer, mod_adhoc) of
false ->
Acc;
_ ->
Access = get_access(LServer),
Allow = acl:match_rule(LServer, Access, From),
AccessGlobal = get_access(global),
AllowGlobal = acl:match_rule(global, AccessGlobal, From),
case Node of
?NS_ADMIN_ANNOUNCE ->
?ITEMS_RESULT(Allow, []);
?NS_ADMIN_ANNOUNCE_ALL ->
?ITEMS_RESULT(Allow, []);
?NS_ADMIN_SET_MOTD ->
?ITEMS_RESULT(Allow, []);
?NS_ADMIN_EDIT_MOTD ->
?ITEMS_RESULT(Allow, []);
?NS_ADMIN_DELETE_MOTD ->
?ITEMS_RESULT(Allow, []);
?NS_ADMIN_ANNOUNCE_ALLHOSTS ->
?ITEMS_RESULT(AllowGlobal, []);
?NS_ADMIN_ANNOUNCE_ALL_ALLHOSTS ->
?ITEMS_RESULT(AllowGlobal, []);
?NS_ADMIN_SET_MOTD_ALLHOSTS ->
?ITEMS_RESULT(AllowGlobal, []);
?NS_ADMIN_EDIT_MOTD_ALLHOSTS ->
?ITEMS_RESULT(AllowGlobal, []);
?NS_ADMIN_DELETE_MOTD_ALLHOSTS ->
?ITEMS_RESULT(AllowGlobal, []);
_ ->
Acc
end
end.
%%-------------------------------------------------------------------------
announce_items(Acc, From, #jid{lserver = LServer, server = Server} = _To, Lang) ->
Access1 = get_access(LServer),
Nodes1 = case acl:match_rule(LServer, Access1, From) of
allow ->
[?NODE_TO_ITEM(Lang, Server, ?NS_ADMIN_ANNOUNCE),
?NODE_TO_ITEM(Lang, Server, ?NS_ADMIN_ANNOUNCE_ALL),
?NODE_TO_ITEM(Lang, Server, ?NS_ADMIN_SET_MOTD),
?NODE_TO_ITEM(Lang, Server, ?NS_ADMIN_EDIT_MOTD),
?NODE_TO_ITEM(Lang, Server, ?NS_ADMIN_DELETE_MOTD)];
deny ->
[]
end,
Access2 = get_access(global),
Nodes2 = case acl:match_rule(global, Access2, From) of
allow ->
[?NODE_TO_ITEM(Lang, Server, ?NS_ADMIN_ANNOUNCE_ALLHOSTS),
?NODE_TO_ITEM(Lang, Server, ?NS_ADMIN_ANNOUNCE_ALL_ALLHOSTS),
?NODE_TO_ITEM(Lang, Server, ?NS_ADMIN_SET_MOTD_ALLHOSTS),
?NODE_TO_ITEM(Lang, Server, ?NS_ADMIN_EDIT_MOTD_ALLHOSTS),
?NODE_TO_ITEM(Lang, Server, ?NS_ADMIN_DELETE_MOTD_ALLHOSTS)];
deny ->
[]
end,
case {Nodes1, Nodes2} of
{[], []} ->
Acc;
_ ->
Items = case Acc of
{result, I} -> I;
_ -> []
end,
{result, Items ++ Nodes1 ++ Nodes2}
end.
%%-------------------------------------------------------------------------
commands_result(Allow, From, To, Request) ->
case Allow of
deny ->
{error, ?ERR_FORBIDDEN};
allow ->
announce_commands(From, To, Request)
end.
announce_commands(Acc, From, #jid{lserver = LServer} = To,
#adhoc_request{ node = Node} = Request) ->
LNode = tokenize(Node),
F = fun() ->
Access = get_access(global),
Allow = acl:match_rule(global, Access, From),
commands_result(Allow, From, To, Request)
end,
R = case LNode of
?NS_ADMINL("announce-allhosts") -> F();
?NS_ADMINL("announce-all-allhosts") -> F();
?NS_ADMINL("set-motd-allhosts") -> F();
?NS_ADMINL("edit-motd-allhosts") -> F();
?NS_ADMINL("delete-motd-allhosts") -> F();
_ ->
Access = get_access(LServer),
Allow = acl:match_rule(LServer, Access, From),
case LNode of
?NS_ADMINL("announce") ->
commands_result(Allow, From, To, Request);
?NS_ADMINL("announce-all") ->
commands_result(Allow, From, To, Request);
?NS_ADMINL("set-motd") ->
commands_result(Allow, From, To, Request);
?NS_ADMINL("edit-motd") ->
commands_result(Allow, From, To, Request);
?NS_ADMINL("delete-motd") ->
commands_result(Allow, From, To, Request);
_ ->
unknown
end
end,
case R of
unknown -> Acc;
_ -> {stop, R}
end.
%%-------------------------------------------------------------------------
announce_commands(From, To,
#adhoc_request{lang = Lang,
node = Node,
action = Action,
xdata = XData} = Request) ->
%% If the "action" attribute is not present, it is
%% understood as "execute". If there was no <actions/>
%% element in the first response (which there isn't in our
%% case), "execute" and "complete" are equivalent.
ActionIsExecute = lists:member(Action, [<<>>, <<"execute">>, <<"complete">>]),
if Action == <<"cancel">> ->
%% User cancels request
adhoc:produce_response(Request, #adhoc_response{status = canceled});
XData == false, ActionIsExecute ->
%% User requests form
Elements = generate_adhoc_form(Lang, Node, To#jid.lserver),
adhoc:produce_response(Request,
#adhoc_response{status = executing,elements = [Elements]});
XData /= false, ActionIsExecute ->
%% User returns form.
case jlib:parse_xdata_submit(XData) of
invalid ->
{error, ?ERR_BAD_REQUEST};
Fields ->
handle_adhoc_form(From, To, Request, Fields)
end;
true ->
{error, ?ERR_BAD_REQUEST}
end.
-define(VVALUE(Val),
(
#xmlel{
name = <<"value">>,
children = [{xmlcdata, Val}]
}
)).
-define(TVFIELD(Type, Var, Val),
(
#xmlel{
name = <<"field">>,
attrs = [{<<"type">>, Type}, {<<"var">>, Var}],
children = vvaluel(Val)
}
)).
-define(HFIELD(), ?TVFIELD(<<"hidden">>, <<"FORM_TYPE">>, ?NS_ADMIN)).
vvaluel(Val) ->
case Val of
<<>> -> [];
_ -> [?VVALUE(Val)]
end.
generate_adhoc_form(Lang, Node, ServerHost) ->
LNode = tokenize(Node),
{OldSubject, OldBody} = if (LNode == ?NS_ADMINL("edit-motd"))
or (LNode == ?NS_ADMINL("edit-motd-allhosts")) ->
get_stored_motd(ServerHost);
true ->
{<<>>, <<>>}
end,
#xmlel{
name = <<"x">>,
attrs = [{<<"xmlns">>, ?NS_XDATA}, {<<"type">>, <<"form">>}],
children = [
?HFIELD(),
#xmlel{name = <<"title">>, children = [{xmlcdata, get_title(Lang, Node)}]}
]
++
if (LNode == ?NS_ADMINL("delete-motd"))
or (LNode == ?NS_ADMINL("delete-motd-allhosts")) ->
[#xmlel{
name = <<"field">>,
attrs = [
{<<"var">>, <<"confirm">>},
{<<"type">>, <<"boolean">>},
{<<"label">>,
translate:translate(Lang, <<"Really delete message of the day?">>)}
],
children = [
#xmlel{name = <<"value">>, children = [{xmlcdata, <<"true">>}]}
]
}
];
true ->
[#xmlel{
name = <<"field">>,
attrs = [
{<<"var">>, <<"subject">>},
{<<"type">>, <<"text-single">>},
{<<"label">>, translate:translate(Lang, <<"Subject">>)}],
children = vvaluel(OldSubject)
},
#xmlel{
name = <<"field">>,
attrs = [
{<<"var">>, <<"body">>},
{<<"type">>, <<"text-multi">>},
{<<"label">>, translate:translate(Lang, <<"Message body">>)}],
children = vvaluel(OldBody)
}
]
end}.
join_lines([]) ->
<<>>;
join_lines(Lines) ->
join_lines(Lines, []).
join_lines([Line|Lines], Acc) ->
join_lines(Lines, [<<"\n">>,Line|Acc]);
join_lines([], Acc) ->
%% Remove last newline
iolist_to_binary(lists:reverse(tl(Acc))).
handle_adhoc_form(From, #jid{lserver = LServer} = To,
#adhoc_request{lang = Lang,
node = Node,
sessionid = SessionID},
Fields) ->
Confirm = case lists:keysearch(<<"confirm">>, 1, Fields) of
{value, {<<"confirm">>, [<<"true">>]}} ->
true;
{value, {<<"confirm">>, [<<"1">>]}} ->
true;
_ ->
false
end,
Subject = case lists:keysearch(<<"subject">>, 1, Fields) of
{value, {<<"subject">>, SubjectLines}} ->
%% There really shouldn't be more than one
%% subject line, but can we stop them?
join_lines(SubjectLines);
_ ->
<<>>
end,
Body = case lists:keysearch(<<"body">>, 1, Fields) of
{value, {<<"body">>, BodyLines}} ->
join_lines(BodyLines);
_ ->
<<>>
end,
Response = #adhoc_response{lang = Lang,
node = Node,
sessionid = SessionID,
status = completed},
Packet = #xmlel{
name = <<"message">>,
attrs = [{<<"type">>, <<"headline">>}],
children = if Subject /= <<>> ->
[#xmlel{name = <<"subject">>, children = [{xmlcdata, Subject}]}];
true ->
[]
end
++
if Body /= <<>> ->
[#xmlel{name = <<"body">>, children = [{xmlcdata, Body}]}];
true ->
[]
end
},
Proc = gen_mod:get_module_proc(LServer, ?PROCNAME),
case {Node, Body} of
{?NS_ADMIN_DELETE_MOTD, _} ->
if Confirm ->
Proc ! {announce_motd_delete, From, To, Packet},
adhoc:produce_response(Response);
true ->
adhoc:produce_response(Response)
end;
{?NS_ADMIN_DELETE_MOTD_ALLHOSTS, _} ->
if Confirm ->
Proc ! {announce_all_hosts_motd_delete, From, To, Packet},
adhoc:produce_response(Response);
true ->
adhoc:produce_response(Response)
end;
{_, <<>>} ->
%% An announce message with no body is definitely an operator error.
%% Throw an error and give him/her a chance to send message again.
{error, ?ERRT_NOT_ACCEPTABLE(Lang,
<<"No body provided for announce message">>)};
%% Now send the packet to ?PROCNAME.
%% We don't use direct announce_* functions because it
%% leads to large delay in response and <iq/> queries processing
{?NS_ADMIN_ANNOUNCE, _} ->
Proc ! {announce_online, From, To, Packet},
adhoc:produce_response(Response);
{?NS_ADMIN_ANNOUNCE_ALLHOSTS, _} ->
Proc ! {announce_all_hosts_online, From, To, Packet},
adhoc:produce_response(Response);
{?NS_ADMIN_ANNOUNCE_ALL, _} ->
Proc ! {announce_all, From, To, Packet},
adhoc:produce_response(Response);
{?NS_ADMIN_ANNOUNCE_ALL_ALLHOSTS, _} ->
Proc ! {announce_all_hosts_all, From, To, Packet},
adhoc:produce_response(Response);
{?NS_ADMIN_SET_MOTD, _} ->
Proc ! {announce_motd, From, To, Packet},
adhoc:produce_response(Response);
{?NS_ADMIN_SET_MOTD_ALLHOSTS, _} ->
Proc ! {announce_all_hosts_motd, From, To, Packet},
adhoc:produce_response(Response);
{?NS_ADMIN_EDIT_MOTD, _} ->
Proc ! {announce_motd_update, From, To, Packet},
adhoc:produce_response(Response);
{?NS_ADMIN_EDIT_MOTD_ALLHOSTS, _} ->
Proc ! {announce_all_hosts_motd_update, From, To, Packet},
adhoc:produce_response(Response);
_ ->
%% This can't happen, as we haven't registered any other
%% command nodes.
{error, ?ERR_INTERNAL_SERVER_ERROR}
end.
get_title(Lang, <<"announce">>) ->
translate:translate(Lang, <<"Announcements">>);
get_title(Lang, ?NS_ADMIN_ANNOUNCE_ALL) ->
translate:translate(Lang, <<"Send announcement to all users">>);
get_title(Lang, ?NS_ADMIN_ANNOUNCE_ALL_ALLHOSTS) ->
translate:translate(Lang, <<"Send announcement to all users on all hosts">>);
get_title(Lang, ?NS_ADMIN_ANNOUNCE) ->
translate:translate(Lang, <<"Send announcement to all online users">>);
get_title(Lang, ?NS_ADMIN_ANNOUNCE_ALLHOSTS) ->
translate:translate(Lang, <<"Send announcement to all online users on all hosts">>);
get_title(Lang, ?NS_ADMIN_SET_MOTD) ->
translate:translate(Lang, <<"Set message of the day and send to online users">>);
get_title(Lang, ?NS_ADMIN_SET_MOTD_ALLHOSTS) ->
translate:translate(Lang, <<"Set message of the day on all hosts and send to online users">>);
get_title(Lang, ?NS_ADMIN_EDIT_MOTD) ->
translate:translate(Lang, <<"Update message of the day (don't send)">>);
get_title(Lang, ?NS_ADMIN_EDIT_MOTD_ALLHOSTS) ->
translate:translate(Lang, <<"Update message of the day on all hosts (don't send)">>);
get_title(Lang, ?NS_ADMIN_DELETE_MOTD) ->
translate:translate(Lang, <<"Delete message of the day">>);
get_title(Lang, ?NS_ADMIN_DELETE_MOTD_ALLHOSTS) ->
translate:translate(Lang, <<"Delete message of the day on all hosts">>).
%%-------------------------------------------------------------------------
announce_all(From, To, Packet) ->
Host = To#jid.lserver,
Access = get_access(Host),
case acl:match_rule(Host, Access, From) of
deny ->
Err = jlib:make_error_reply(Packet, ?ERR_FORBIDDEN),
ejabberd_router:route(To, From, Err);
allow ->
Local = jid:make(<<>>, To#jid.server, <<>>),
lists:foreach(
fun({User, Server}) ->
Dest = jid:make(User, Server, <<>>),
ejabberd_router:route(Local, Dest, Packet)
end, ejabberd_auth:get_vh_registered_users(Host))
end.
announce_all_hosts_all(From, To, Packet) ->
Access = get_access(global),
case acl:match_rule(global, Access, From) of
deny ->
Err = jlib:make_error_reply(Packet, ?ERR_FORBIDDEN),
ejabberd_router:route(To, From, Err);
allow ->
Local = jid:make(<<>>, To#jid.server, <<>>),
lists:foreach(
fun({User, Server}) ->
Dest = jid:make(User, Server, <<>>),
ejabberd_router:route(Local, Dest, Packet)
end, ejabberd_auth:dirty_get_registered_users())
end.
announce_online(From, To, Packet) ->
Host = To#jid.lserver,
Access = get_access(Host),
case acl:match_rule(Host, Access, From) of
deny ->
Err = jlib:make_error_reply(Packet, ?ERR_FORBIDDEN),
ejabberd_router:route(To, From, Err);
allow ->
announce_online1(ejabberd_sm:get_vh_session_list(Host),
To#jid.server,
Packet)
end.
announce_all_hosts_online(From, To, Packet) ->
Access = get_access(global),
case acl:match_rule(global, Access, From) of
deny ->
Err = jlib:make_error_reply(Packet, ?ERR_FORBIDDEN),
ejabberd_router:route(To, From, Err);
allow ->
announce_online1(ejabberd_sm:dirty_get_sessions_list(),
To#jid.server,
Packet)
end.
announce_online1(Sessions, Server, Packet) ->
Local = jid:make(<<>>, Server, <<>>),
lists:foreach(
fun({U, S, R}) ->
Dest = jid:make(U, S, R),
ejabberd_router:route(Local, Dest, Packet)
end, Sessions).
announce_motd(From, To, Packet) ->
Host = To#jid.lserver,
Access = get_access(Host),
case acl:match_rule(Host, Access, From) of
deny ->
Err = jlib:make_error_reply(Packet, ?ERR_FORBIDDEN),
ejabberd_router:route(To, From, Err);
allow ->
announce_motd(Host, Packet)
end.
announce_all_hosts_motd(From, To, Packet) ->
Access = get_access(global),
case acl:match_rule(global, Access, From) of
deny ->
Err = jlib:make_error_reply(Packet, ?ERR_FORBIDDEN),
ejabberd_router:route(To, From, Err);
allow ->
Hosts = ?MYHOSTS,
[announce_motd(Host, Packet) || Host <- Hosts]
end.
announce_motd(Host, Packet) ->
LServer = jid:nameprep(Host),
announce_motd_update(LServer, Packet),
Sessions = ejabberd_sm:get_vh_session_list(LServer),
announce_online1(Sessions, LServer, Packet),
case gen_mod:db_type(LServer, ?MODULE) of
mnesia ->
F = fun() ->
lists:foreach(
fun({U, S, _R}) ->
mnesia:write(#motd_users{us = {U, S}})
end, Sessions)
end,
mnesia:transaction(F);
riak ->
try
lists:foreach(
fun({U, S, _R}) ->
ok = ejabberd_riak:put(#motd_users{us = {U, S}},
motd_users_schema(),
[{'2i', [{<<"server">>, S}]}])
end, Sessions),
{atomic, ok}
catch _:{badmatch, Err} ->
{atomic, Err}
end;
odbc ->
F = fun() ->
lists:foreach(
fun({U, _S, _R}) ->
Username = ejabberd_odbc:escape(U),
odbc_queries:update_t(
<<"motd">>,
[<<"username">>, <<"xml">>],
[Username, <<"">>],
[<<"username='">>, Username, <<"'">>])
end, Sessions)
end,
ejabberd_odbc:sql_transaction(LServer, F)
end.
announce_motd_update(From, To, Packet) ->
Host = To#jid.lserver,
Access = get_access(Host),
case acl:match_rule(Host, Access, From) of
deny ->
Err = jlib:make_error_reply(Packet, ?ERR_FORBIDDEN),
ejabberd_router:route(To, From, Err);
allow ->
announce_motd_update(Host, Packet)
end.
announce_all_hosts_motd_update(From, To, Packet) ->
Access = get_access(global),
case acl:match_rule(global, Access, From) of
deny ->
Err = jlib:make_error_reply(Packet, ?ERR_FORBIDDEN),
ejabberd_router:route(To, From, Err);
allow ->
Hosts = ?MYHOSTS,
[announce_motd_update(Host, Packet) || Host <- Hosts]
end.
announce_motd_update(LServer, Packet) ->
announce_motd_delete(LServer),
case gen_mod:db_type(LServer, ?MODULE) of
mnesia ->
F = fun() ->
mnesia:write(#motd{server = LServer, packet = Packet})
end,
mnesia:transaction(F);
riak ->
{atomic, ejabberd_riak:put(#motd{server = LServer,
packet = Packet},
motd_schema())};
odbc ->
XML = ejabberd_odbc:escape(fxml:element_to_binary(Packet)),
F = fun() ->
odbc_queries:update_t(
<<"motd">>,
[<<"username">>, <<"xml">>],
[<<"">>, XML],
[<<"username=''">>])
end,
ejabberd_odbc:sql_transaction(LServer, F)
end.
announce_motd_delete(From, To, Packet) ->
Host = To#jid.lserver,
Access = get_access(Host),
case acl:match_rule(Host, Access, From) of
deny ->
Err = jlib:make_error_reply(Packet, ?ERR_FORBIDDEN),
ejabberd_router:route(To, From, Err);
allow ->
announce_motd_delete(Host)
end.
announce_all_hosts_motd_delete(From, To, Packet) ->
Access = get_access(global),
case acl:match_rule(global, Access, From) of
deny ->
Err = jlib:make_error_reply(Packet, ?ERR_FORBIDDEN),
ejabberd_router:route(To, From, Err);
allow ->
Hosts = ?MYHOSTS,
[announce_motd_delete(Host) || Host <- Hosts]
end.
announce_motd_delete(LServer) ->
case gen_mod:db_type(LServer, ?MODULE) of
mnesia ->
F = fun() ->
mnesia:delete({motd, LServer}),
mnesia:write_lock_table(motd_users),
Users = mnesia:select(
motd_users,
[{#motd_users{us = '$1', _ = '_'},
[{'==', {element, 2, '$1'}, LServer}],
['$1']}]),
lists:foreach(fun(US) ->
mnesia:delete({motd_users, US})
end, Users)
end,
mnesia:transaction(F);
riak ->
try
ok = ejabberd_riak:delete(motd, LServer),
ok = ejabberd_riak:delete_by_index(motd_users,
<<"server">>,
LServer),
{atomic, ok}
catch _:{badmatch, Err} ->
{atomic, Err}
end;
odbc ->
F = fun() ->
ejabberd_odbc:sql_query_t([<<"delete from motd;">>])
end,
ejabberd_odbc:sql_transaction(LServer, F)
end.
send_motd(JID) ->
send_motd(JID, gen_mod:db_type(JID#jid.lserver, ?MODULE)).
send_motd(#jid{luser = LUser, lserver = LServer} = JID, mnesia) ->
case catch mnesia:dirty_read({motd, LServer}) of
[#motd{packet = Packet}] ->
US = {LUser, LServer},
case catch mnesia:dirty_read({motd_users, US}) of
[#motd_users{}] ->
ok;
_ ->
Local = jid:make(<<>>, LServer, <<>>),
ejabberd_router:route(Local, JID, Packet),
F = fun() ->
mnesia:write(#motd_users{us = US})
end,
mnesia:transaction(F)
end;
_ ->
ok
end;
send_motd(#jid{luser = LUser, lserver = LServer} = JID, riak) ->
case catch ejabberd_riak:get(motd, motd_schema(), LServer) of
{ok, #motd{packet = Packet}} ->
US = {LUser, LServer},
case ejabberd_riak:get(motd_users, motd_users_schema(), US) of
{ok, #motd_users{}} ->
ok;
_ ->
Local = jid:make(<<>>, LServer, <<>>),
ejabberd_router:route(Local, JID, Packet),
{atomic, ejabberd_riak:put(
#motd_users{us = US}, motd_users_schema(),
[{'2i', [{<<"server">>, LServer}]}])}
end;
_ ->
ok
end;
send_motd(#jid{luser = LUser, lserver = LServer} = JID, odbc) when LUser /= <<>> ->
case catch ejabberd_odbc:sql_query(
LServer, [<<"select xml from motd where username='';">>]) of
{selected, [<<"xml">>], [[XML]]} ->
case fxml_stream:parse_element(XML) of
{error, _} ->
ok;
Packet ->
Username = ejabberd_odbc:escape(LUser),
case catch ejabberd_odbc:sql_query(
LServer,
[<<"select username from motd "
"where username='">>, Username, <<"';">>]) of
{selected, [<<"username">>], []} ->
Local = jid:make(<<"">>, LServer, <<"">>),
ejabberd_router:route(Local, JID, Packet),
F = fun() ->
odbc_queries:update_t(
<<"motd">>,
[<<"username">>, <<"xml">>],
[Username, <<"">>],
[<<"username='">>, Username, <<"'">>])
end,
ejabberd_odbc:sql_transaction(LServer, F);
_ ->
ok
end
end;
_ ->
ok
end;
send_motd(_, odbc) ->
ok.
get_stored_motd(LServer) ->
case get_stored_motd_packet(LServer, gen_mod:db_type(LServer, ?MODULE)) of
{ok, Packet} ->
{fxml:get_subtag_cdata(Packet, <<"subject">>),
fxml:get_subtag_cdata(Packet, <<"body">>)};
error ->
{<<>>, <<>>}
end.
get_stored_motd_packet(LServer, mnesia) ->
case catch mnesia:dirty_read({motd, LServer}) of
[#motd{packet = Packet}] ->
{ok, Packet};
_ ->
error
end;
get_stored_motd_packet(LServer, riak) ->
case ejabberd_riak:get(motd, motd_schema(), LServer) of
{ok, #motd{packet = Packet}} ->
{ok, Packet};
_ ->
error
end;
get_stored_motd_packet(LServer, odbc) ->
case catch ejabberd_odbc:sql_query(
LServer, [<<"select xml from motd where username='';">>]) of
{selected, [<<"xml">>], [[XML]]} ->
case fxml_stream:parse_element(XML) of
{error, _} ->
error;
Packet ->
{ok, Packet}
end;
_ ->
error
end.
%% This function is similar to others, but doesn't perform any ACL verification
send_announcement_to_all(Host, SubjectS, BodyS) ->
SubjectEls = if SubjectS /= <<>> ->
[#xmlel{name = <<"subject">>, children = [{xmlcdata, SubjectS}]}];
true ->
[]
end,
BodyEls = if BodyS /= <<>> ->
[#xmlel{name = <<"body">>, children = [{xmlcdata, BodyS}]}];
true ->
[]
end,
Packet = #xmlel{
name = <<"message">>,
attrs = [{<<"type">>, <<"headline">>}],
children = SubjectEls ++ BodyEls
},
Sessions = ejabberd_sm:dirty_get_sessions_list(),
Local = jid:make(<<>>, Host, <<>>),
lists:foreach(
fun({U, S, R}) ->
Dest = jid:make(U, S, R),
ejabberd_router:route(Local, Dest, Packet)
end, Sessions).
-spec get_access(global | binary()) -> atom().
get_access(Host) ->
gen_mod:get_module_opt(Host, ?MODULE, access,
fun(A) when is_atom(A) -> A end,
none).
%%-------------------------------------------------------------------------
update_tables() ->
update_motd_table(),
update_motd_users_table().
update_motd_table() ->
Fields = record_info(fields, motd),
case mnesia:table_info(motd, attributes) of
Fields ->
ejabberd_config:convert_table_to_binary(
motd, Fields, set,
fun(#motd{server = S}) -> S end,
fun(#motd{server = S, packet = P} = R) ->
NewS = iolist_to_binary(S),
NewP = fxml:to_xmlel(P),
R#motd{server = NewS, packet = NewP}
end);
_ ->
?INFO_MSG("Recreating motd table", []),
mnesia:transform_table(motd, ignore, Fields)
end.
update_motd_users_table() ->
Fields = record_info(fields, motd_users),
case mnesia:table_info(motd_users, attributes) of
Fields ->
ejabberd_config:convert_table_to_binary(
motd_users, Fields, set,
fun(#motd_users{us = {U, _}}) -> U end,
fun(#motd_users{us = {U, S}} = R) ->
NewUS = {iolist_to_binary(U),
iolist_to_binary(S)},
R#motd_users{us = NewUS}
end);
_ ->
?INFO_MSG("Recreating motd_users table", []),
mnesia:transform_table(motd_users, ignore, Fields)
end.
motd_schema() ->
{record_info(fields, motd), #motd{}}.
motd_users_schema() ->
{record_info(fields, motd_users), #motd_users{}}.
export(_Server) ->
[{motd,
fun(Host, #motd{server = LServer, packet = El})
when LServer == Host ->
[[<<"delete from motd where username='';">>],
[<<"insert into motd(username, xml) values ('', '">>,
ejabberd_odbc:escape(fxml:element_to_binary(El)),
<<"');">>]];
(_Host, _R) ->
[]
end},
{motd_users,
fun(Host, #motd_users{us = {LUser, LServer}})
when LServer == Host, LUser /= <<"">> ->
Username = ejabberd_odbc:escape(LUser),
[[<<"delete from motd where username='">>, Username, <<"';">>],
[<<"insert into motd(username, xml) values ('">>,
Username, <<"', '');">>]];
(_Host, _R) ->
[]
end}].
import(LServer) ->
[{<<"select xml from motd where username='';">>,
fun([XML]) ->
El = fxml_stream:parse_element(XML),
#motd{server = LServer, packet = El}
end},
{<<"select username from motd where xml='';">>,
fun([LUser]) ->
#motd_users{us = {LUser, LServer}}
end}].
import(_LServer, mnesia, #motd{} = Motd) ->
mnesia:dirty_write(Motd);
import(_LServer, mnesia, #motd_users{} = Users) ->
mnesia:dirty_write(Users);
import(_LServer, riak, #motd{} = Motd) ->
ejabberd_riak:put(Motd, motd_schema());
import(_LServer, riak, #motd_users{us = {_, S}} = Users) ->
ejabberd_riak:put(Users, motd_users_schema(),
[{'2i', [{<<"server">>, S}]}]);
import(_, _, _) ->
pass.
mod_opt_type(access) ->
fun (A) when is_atom(A) -> A end;
mod_opt_type(db_type) -> fun gen_mod:v_db/1;
mod_opt_type(_) -> [access, db_type].
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