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xmpp.chapril.org-ejabberd/src/mod_announce.erl
Badlop 2d2fcc8210 * doc/guide.tex: Updated copyright dates to 2008 
* src/*: Likewise

SVN Revision: 1153
2008-01-15 17:02:57 +00:00

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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) 2002-2008 Process-one
%%%
%%% 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., 59 Temple Place, Suite 330, Boston, MA
%%% 02111-1307 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,
announce/3,
send_motd/1,
disco_identity/5,
disco_features/5,
disco_items/5,
announce_commands/4,
announce_items/4]).
-include("ejabberd.hrl").
-include("jlib.hrl").
-include("adhoc.hrl").
-record(motd, {server, packet}).
-record(motd_users, {us, dummy = []}).
-define(PROCNAME, ejabberd_announce).
-define(NS_ADMINL(Sub), ["http:","jabber.org","protocol","admin", Sub]).
tokenize(Node) -> string:tokens(Node, "/#").
start(Host, _Opts) ->
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(),
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, To, Packet) ->
case To of
#jid{luser = "", lresource = Res} ->
{xmlelement, Name, _Attrs, _Els} = Packet,
Proc = gen_mod:get_module_proc(To#jid.lserver, ?PROCNAME),
case {Res, Name} of
{"announce/all", "message"} ->
Proc ! {announce_all, From, To, Packet},
stop;
{"announce/all-hosts/all", "message"} ->
Proc ! {announce_all_hosts_all, From, To, Packet},
stop;
{"announce/online", "message"} ->
Proc ! {announce_online, From, To, Packet},
stop;
{"announce/all-hosts/online", "message"} ->
Proc ! {announce_all_hosts_online, From, To, Packet},
stop;
{"announce/motd", "message"} ->
Proc ! {announce_motd, From, To, Packet},
stop;
{"announce/all-hosts/motd", "message"} ->
Proc ! {announce_all_hosts_motd, From, To, Packet},
stop;
{"announce/motd/update", "message"} ->
Proc ! {announce_motd_update, From, To, Packet},
stop;
{"announce/all-hosts/motd/update", "message"} ->
Proc ! {announce_all_hosts_motd_update, From, To, Packet},
stop;
{"announce/motd/delete", "message"} ->
Proc ! {announce_motd_delete, From, To, Packet},
stop;
{"announce/all-hosts/motd/delete", "message"} ->
Proc ! {announce_all_hosts_motd_delete, From, To, Packet},
stop;
_ ->
ok
end;
_ ->
ok
end.
%%-------------------------------------------------------------------------
%% Announcing via ad-hoc commands
-define(INFO_COMMAND(Lang, Node),
[{xmlelement, "identity",
[{"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 = gen_mod:get_module_opt(LServer, ?MODULE, access, none),
Access2 = gen_mod:get_module_opt(global, ?MODULE, access, none),
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 = gen_mod:get_module_opt(LServer, ?MODULE, access, none),
Allow = acl:match_rule(LServer, Access, From),
AccessGlobal = gen_mod:get_module_opt(global, ?MODULE, access, none),
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),
{xmlelement, "item",
[{"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 = gen_mod:get_module_opt(LServer, ?MODULE, access, none),
Access2 = gen_mod:get_module_opt(global, ?MODULE, access, none),
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 = gen_mod:get_module_opt(LServer, ?MODULE, access, none),
Allow = acl:match_rule(LServer, Access, From),
AccessGlobal = gen_mod:get_module_opt(global, ?MODULE, access, none),
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 = gen_mod:get_module_opt(LServer, ?MODULE, access, none),
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 = gen_mod:get_module_opt(global, ?MODULE, access, none),
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 = gen_mod:get_module_opt(global, ?MODULE, access, none),
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 = gen_mod:get_module_opt(LServer, ?MODULE, access, none),
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),
{xmlelement, "value", [], [{xmlcdata, Val}]}).
-define(VVALUEL(Val),
case Val of
"" -> [];
_ -> [?VVALUE(Val)]
end).
-define(TVFIELD(Type, Var, Val),
{xmlelement, "field", [{"type", Type},
{"var", Var}],
?VVALUEL(Val)}).
-define(HFIELD(), ?TVFIELD("hidden", "FORM_TYPE", ?NS_ADMIN)).
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,
{xmlelement, "x",
[{"xmlns", ?NS_XDATA},
{"type", "form"}],
[?HFIELD(),
{xmlelement, "title", [], [{xmlcdata, get_title(Lang, Node)}]}]
++
if (LNode == ?NS_ADMINL("delete-motd"))
or (LNode == ?NS_ADMINL("delete-motd-allhosts")) ->
[{xmlelement, "field",
[{"var", "confirm"},
{"type", "boolean"},
{"label", translate:translate(Lang, "Really delete message of the day?")}],
[{xmlelement, "value",
[],
[{xmlcdata, "true"}]}]}];
true ->
[{xmlelement, "field",
[{"var", "subject"},
{"type", "text-single"},
{"label", translate:translate(Lang, "Subject")}],
?VVALUEL(OldSubject)},
{xmlelement, "field",
[{"var", "body"},
{"type", "text-multi"},
{"label", translate:translate(Lang, "Message body")}],
?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
lists:flatten(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 = {xmlelement, "message", [{"type", "normal"}],
if Subject /= [] ->
[{xmlelement, "subject", [],
[{xmlcdata, Subject}]}];
true ->
[]
end ++
if Body /= [] ->
[{xmlelement, "body", [],
[{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 = gen_mod:get_module_opt(Host, ?MODULE, access, none),
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 = jlib:make_jid("", To#jid.server, ""),
lists:foreach(
fun({User, Server}) ->
Dest = jlib:make_jid(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 = gen_mod:get_module_opt(global, ?MODULE, access, none),
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 = jlib:make_jid("", To#jid.server, ""),
lists:foreach(
fun({User, Server}) ->
Dest = jlib:make_jid(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 = gen_mod:get_module_opt(Host, ?MODULE, access, none),
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 = gen_mod:get_module_opt(global, ?MODULE, access, none),
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 = jlib:make_jid("", Server, ""),
lists:foreach(
fun({U, S, R}) ->
Dest = jlib:make_jid(U, S, R),
ejabberd_router:route(Local, Dest, Packet)
end, Sessions).
announce_motd(From, To, Packet) ->
Host = To#jid.lserver,
Access = gen_mod:get_module_opt(Host, ?MODULE, access, none),
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 = gen_mod:get_module_opt(global, ?MODULE, access, none),
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) ->
announce_motd_update(Host, Packet),
Sessions = ejabberd_sm:get_vh_session_list(Host),
announce_online1(Sessions, Host, Packet),
F = fun() ->
lists:foreach(
fun({U, S, _R}) ->
mnesia:write(#motd_users{us = {U, S}})
end, Sessions)
end,
mnesia:transaction(F).
announce_motd_update(From, To, Packet) ->
Host = To#jid.lserver,
Access = gen_mod:get_module_opt(Host, ?MODULE, access, none),
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 = gen_mod:get_module_opt(global, ?MODULE, access, none),
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),
F = fun() ->
mnesia:write(#motd{server = LServer, packet = Packet})
end,
mnesia:transaction(F).
announce_motd_delete(From, To, Packet) ->
Host = To#jid.lserver,
Access = gen_mod:get_module_opt(Host, ?MODULE, access, none),
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 = gen_mod:get_module_opt(global, ?MODULE, access, none),
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) ->
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).
send_motd(#jid{luser = LUser, lserver = LServer} = JID) ->
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 = jlib:make_jid("", LServer, ""),
ejabberd_router:route(Local, JID, Packet),
F = fun() ->
mnesia:write(#motd_users{us = US})
end,
mnesia:transaction(F)
end;
_ ->
ok
end.
get_stored_motd(LServer) ->
case catch mnesia:dirty_read({motd, LServer}) of
[#motd{packet = Packet}] ->
{xml:get_subtag_cdata(Packet, "subject"),
xml:get_subtag_cdata(Packet, "body")};
_ ->
{"", ""}
end.
%%-------------------------------------------------------------------------
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 ->
ok;
[id, packet] ->
?INFO_MSG("Converting motd table from "
"{id, packet} format", []),
Host = ?MYNAME,
{atomic, ok} = mnesia:create_table(
mod_announce_tmp_table,
[{disc_only_copies, [node()]},
{type, bag},
{local_content, true},
{record_name, motd},
{attributes, record_info(fields, motd)}]),
mnesia:transform_table(motd, ignore, Fields),
F1 = fun() ->
mnesia:write_lock_table(mod_announce_tmp_table),
mnesia:foldl(
fun(#motd{server = _} = R, _) ->
mnesia:dirty_write(
mod_announce_tmp_table,
R#motd{server = Host})
end, ok, motd)
end,
mnesia:transaction(F1),
mnesia:clear_table(motd),
F2 = fun() ->
mnesia:write_lock_table(motd),
mnesia:foldl(
fun(R, _) ->
mnesia:dirty_write(R)
end, ok, mod_announce_tmp_table)
end,
mnesia:transaction(F2),
mnesia:delete_table(mod_announce_tmp_table);
_ ->
?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 ->
ok;
[luser, dummy] ->
?INFO_MSG("Converting motd_users table from "
"{luser, dummy} format", []),
Host = ?MYNAME,
{atomic, ok} = mnesia:create_table(
mod_announce_tmp_table,
[{disc_only_copies, [node()]},
{type, bag},
{local_content, true},
{record_name, motd_users},
{attributes, record_info(fields, motd_users)}]),
mnesia:transform_table(motd_users, ignore, Fields),
F1 = fun() ->
mnesia:write_lock_table(mod_announce_tmp_table),
mnesia:foldl(
fun(#motd_users{us = U} = R, _) ->
mnesia:dirty_write(
mod_announce_tmp_table,
R#motd_users{us = {U, Host}})
end, ok, motd_users)
end,
mnesia:transaction(F1),
mnesia:clear_table(motd_users),
F2 = fun() ->
mnesia:write_lock_table(motd_users),
mnesia:foldl(
fun(R, _) ->
mnesia:dirty_write(R)
end, ok, mod_announce_tmp_table)
end,
mnesia:transaction(F2),
mnesia:delete_table(mod_announce_tmp_table);
_ ->
?INFO_MSG("Recreating motd_users table", []),
mnesia:transform_table(motd_users, ignore, Fields)
end.
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