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xmpp.chapril.org-ejabberd/src/prosody2ejabberd.erl
Evgeniy Khramtsov 7bcbea2108 Deprecate jlib.erl in favor of aux.erl
Since the main goal of jlib.erl is lost, all auxiliary functions
are now moved to aux.erl, and the whole jlib.erl is now deprecated.
2017-03-30 14:17:13 +03:00

378 lines
12 KiB
Erlang

%%%-------------------------------------------------------------------
%%% File : prosody2ejabberd.erl
%%% Author : Evgeny Khramtsov <ekhramtsov@process-one.net>
%%% Created : 20 Jan 2016 by Evgeny Khramtsov <ekhramtsov@process-one.net>
%%%
%%%
%%% ejabberd, Copyright (C) 2002-2017 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.
%%%
%%%----------------------------------------------------------------------
-module(prosody2ejabberd).
%% API
-export([from_dir/1]).
-include("ejabberd.hrl").
-include("xmpp.hrl").
-include("logger.hrl").
-include("mod_roster.hrl").
-include("mod_offline.hrl").
-include("mod_privacy.hrl").
%%%===================================================================
%%% API
%%%===================================================================
from_dir(ProsodyDir) ->
case file:list_dir(ProsodyDir) of
{ok, HostDirs} ->
lists:foreach(
fun(HostDir) ->
Host = list_to_binary(HostDir),
lists:foreach(
fun(SubDir) ->
Path = filename:join(
[ProsodyDir, HostDir, SubDir]),
convert_dir(Path, Host, SubDir)
end, ["vcard", "accounts", "roster",
"private", "config", "offline",
"privacy"])
end, HostDirs);
{error, Why} = Err ->
?ERROR_MSG("failed to list ~s: ~s",
[ProsodyDir, file:format_error(Why)]),
Err
end.
%%%===================================================================
%%% Internal functions
%%%===================================================================
convert_dir(Path, Host, Type) ->
case file:list_dir(Path) of
{ok, Files} ->
lists:foreach(
fun(File) ->
FilePath = filename:join(Path, File),
case eval_file(FilePath) of
{ok, Data} ->
Name = iolist_to_binary(filename:rootname(File)),
convert_data(Host, Type, Name, Data);
Err ->
Err
end
end, Files);
{error, enoent} ->
ok;
{error, Why} = Err ->
?ERROR_MSG("failed to list ~s: ~s",
[Path, file:format_error(Why)]),
Err
end.
eval_file(Path) ->
case file:read_file(Path) of
{ok, Data} ->
State0 = luerl:init(),
State1 = luerl:set_table([item],
fun([X], State) -> {[X], State} end,
State0),
NewData = case filename:extension(Path) of
".list" ->
<<"return {", Data/binary, "};">>;
_ ->
Data
end,
case luerl:eval(NewData, State1) of
{ok, _} = Res ->
Res;
{error, Why} = Err ->
?ERROR_MSG("failed to eval ~s: ~p", [Path, Why]),
Err
end;
{error, Why} = Err ->
?ERROR_MSG("failed to read file ~s: ~s",
[Path, file:format_error(Why)]),
Err
end.
maybe_get_scram_auth(Data) ->
case proplists:get_value(<<"iteration_count">>, Data, no_ic) of
IC when is_float(IC) -> %% A float like 4096.0 is read
#scram{
storedkey = aux:hex_to_base64(proplists:get_value(<<"stored_key">>, Data, <<"">>)),
serverkey = aux:hex_to_base64(proplists:get_value(<<"server_key">>, Data, <<"">>)),
salt = aux:hex_to_base64(proplists:get_value(<<"salt">>, Data, <<"">>)),
iterationcount = round(IC)
};
_ -> <<"">>
end.
convert_data(Host, "accounts", User, [Data]) ->
Password = case proplists:get_value(<<"password">>, Data, no_pass) of
no_pass ->
maybe_get_scram_auth(Data);
Pass when is_binary(Pass) ->
Pass
end,
case ejabberd_auth:try_register(User, Host, Password) of
{atomic, ok} ->
ok;
Err ->
?ERROR_MSG("failed to register user ~s@~s: ~p",
[User, Host, Err]),
Err
end;
convert_data(Host, "roster", User, [Data]) ->
LUser = jid:nodeprep(User),
LServer = jid:nameprep(Host),
Rosters =
lists:flatmap(
fun({<<"pending">>, L}) ->
convert_pending_item(LUser, LServer, L);
({S, L}) when is_binary(S) ->
convert_roster_item(LUser, LServer, S, L);
(_) ->
[]
end, Data),
lists:foreach(fun mod_roster:set_roster/1, Rosters);
convert_data(Host, "private", User, [Data]) ->
LUser = jid:nodeprep(User),
LServer = jid:nameprep(Host),
PrivData = lists:flatmap(
fun({_TagXMLNS, Raw}) ->
case deserialize(Raw) of
[El] ->
XMLNS = fxml:get_tag_attr_s(<<"xmlns">>, El),
[{XMLNS, El}];
_ ->
[]
end
end, Data),
mod_private:set_data(LUser, LServer, PrivData);
convert_data(Host, "vcard", User, [Data]) ->
LServer = jid:nameprep(Host),
case deserialize(Data) of
[VCard] ->
mod_vcard:set_vcard(User, LServer, VCard);
_ ->
ok
end;
convert_data(_Host, "config", _User, [Data]) ->
RoomJID = jid:decode(proplists:get_value(<<"jid">>, Data, <<"">>)),
Config = proplists:get_value(<<"_data">>, Data, []),
RoomCfg = convert_room_config(Data),
case proplists:get_bool(<<"persistent">>, Config) of
true when RoomJID /= error ->
mod_muc:store_room(?MYNAME, RoomJID#jid.lserver,
RoomJID#jid.luser, RoomCfg);
_ ->
ok
end;
convert_data(Host, "offline", User, [Data]) ->
LUser = jid:nodeprep(User),
LServer = jid:nameprep(Host),
Msgs = lists:flatmap(
fun({_, RawXML}) ->
case deserialize(RawXML) of
[El] -> el_to_offline_msg(LUser, LServer, El);
_ -> []
end
end, Data),
mod_offline:store_offline_msg(
LServer, {LUser, LServer}, Msgs, length(Msgs), infinity);
convert_data(Host, "privacy", User, [Data]) ->
LUser = jid:nodeprep(User),
LServer = jid:nameprep(Host),
Lists = proplists:get_value(<<"lists">>, Data, []),
Priv = #privacy{
us = {LUser, LServer},
default = proplists:get_value(<<"default">>, Data, none),
lists = lists:flatmap(
fun({Name, Vals}) ->
Items = proplists:get_value(<<"items">>, Vals, []),
case lists:map(fun convert_privacy_item/1,
Items) of
[] -> [];
ListItems -> [{Name, ListItems}]
end
end, Lists)},
mod_privacy:set_privacy_list(Priv);
convert_data(_Host, _Type, _User, _Data) ->
ok.
convert_pending_item(LUser, LServer, LuaList) ->
lists:flatmap(
fun({S, true}) ->
try jid:decode(S) of
J ->
LJID = jid:tolower(J),
[#roster{usj = {LUser, LServer, LJID},
us = {LUser, LServer},
jid = LJID,
ask = in}]
catch _:{bad_jid, _} ->
[]
end;
(_) ->
[]
end, LuaList).
convert_roster_item(LUser, LServer, JIDstring, LuaList) ->
try jid:decode(JIDstring) of
JID ->
LJID = jid:tolower(JID),
InitR = #roster{usj = {LUser, LServer, LJID},
us = {LUser, LServer},
jid = LJID},
Roster =
lists:foldl(
fun({<<"groups">>, Val}, R) ->
Gs = lists:flatmap(
fun({G, true}) -> [G];
(_) -> []
end, Val),
R#roster{groups = Gs};
({<<"subscription">>, Sub}, R) ->
R#roster{subscription = aux:binary_to_atom(Sub)};
({<<"ask">>, <<"subscribe">>}, R) ->
R#roster{ask = out};
({<<"name">>, Name}, R) ->
R#roster{name = Name}
end, InitR, LuaList),
[Roster]
catch _:{bad_jid, _} ->
[]
end.
convert_room_affiliations(Data) ->
lists:flatmap(
fun({J, Aff}) ->
try jid:decode(J) of
#jid{luser = U, lserver = S} ->
[{{U, S, <<>>}, aux:binary_to_atom(Aff)}]
catch _:{bad_jid, _} ->
[]
end
end, proplists:get_value(<<"_affiliations">>, Data, [])).
convert_room_config(Data) ->
Config = proplists:get_value(<<"_data">>, Data, []),
Pass = case proplists:get_value(<<"password">>, Config, <<"">>) of
<<"">> ->
[];
Password ->
[{password_protected, true},
{password, Password}]
end,
Subj = try jid:decode(
proplists:get_value(
<<"subject_from">>, Config, <<"">>)) of
#jid{lresource = Nick} when Nick /= <<"">> ->
[{subject, proplists:get_value(<<"subject">>, Config, <<"">>)},
{subject_author, Nick}]
catch _:{bad_jid, _} ->
[]
end,
Anonymous = case proplists:get_value(<<"whois">>, Config, <<"moderators">>) of
<<"moderators">> -> true;
_ -> false
end,
[{affiliations, convert_room_affiliations(Data)},
{allow_change_subj, proplists:get_bool(<<"changesubject">>, Config)},
{description, proplists:get_value(<<"description">>, Config, <<"">>)},
{members_only, proplists:get_bool(<<"members_only">>, Config)},
{moderated, proplists:get_bool(<<"moderated">>, Config)},
{anonymous, Anonymous}] ++ Pass ++ Subj.
convert_privacy_item({_, Item}) ->
Action = proplists:get_value(<<"action">>, Item, <<"allow">>),
Order = proplists:get_value(<<"order">>, Item, 0),
T = aux:binary_to_atom(proplists:get_value(<<"type">>, Item, <<"none">>)),
V = proplists:get_value(<<"value">>, Item, <<"">>),
MatchIQ = proplists:get_bool(<<"iq">>, Item),
MatchMsg = proplists:get_bool(<<"message">>, Item),
MatchPresIn = proplists:get_bool(<<"presence-in">>, Item),
MatchPresOut = proplists:get_bool(<<"presence-out">>, Item),
MatchAll = if (MatchIQ == false) and (MatchMsg == false) and
(MatchPresIn == false) and (MatchPresOut == false) ->
true;
true ->
false
end,
{Type, Value} = try case T of
none -> {T, none};
group -> {T, V};
jid -> {T, jid:tolower(jid:decode(V))};
subscription -> {T, aux:binary_to_atom(V)}
end
catch _:_ ->
{none, none}
end,
#listitem{type = Type,
value = Value,
action = aux:binary_to_atom(Action),
order = erlang:trunc(Order),
match_all = MatchAll,
match_iq = MatchIQ,
match_message = MatchMsg,
match_presence_in = MatchPresIn,
match_presence_out = MatchPresOut}.
el_to_offline_msg(LUser, LServer, #xmlel{attrs = Attrs} = El) ->
try
TS = xmpp_util:decode_timestamp(
fxml:get_attr_s(<<"stamp">>, Attrs)),
Attrs1 = lists:filter(
fun({<<"stamp">>, _}) -> false;
({<<"stamp_legacy">>, _}) -> false;
(_) -> true
end, Attrs),
El1 = El#xmlel{attrs = Attrs1},
case xmpp:decode(El1, ?NS_CLIENT, [ignore_els]) of
#message{from = #jid{} = From, to = #jid{} = To} = Packet ->
[#offline_msg{
us = {LUser, LServer},
timestamp = TS,
expire = never,
from = From,
to = To,
packet = Packet}];
_ ->
[]
end
catch _:{bad_timestamp, _} ->
[];
_:{bad_jid, _} ->
[];
_:{xmpp_codec, _} ->
[]
end.
deserialize(L) ->
deserialize(L, #xmlel{}, []).
deserialize([{<<"attr">>, Attrs}|T], El, Acc) ->
deserialize(T, El#xmlel{attrs = Attrs ++ El#xmlel.attrs}, Acc);
deserialize([{<<"name">>, Name}|T], El, Acc) ->
deserialize(T, El#xmlel{name = Name}, Acc);
deserialize([{_, S}|T], #xmlel{children = Els} = El, Acc) when is_binary(S) ->
deserialize(T, El#xmlel{children = [{xmlcdata, S}|Els]}, Acc);
deserialize([{_, L}|T], #xmlel{children = Els} = El, Acc) when is_list(L) ->
deserialize(T, El#xmlel{children = deserialize(L) ++ Els}, Acc);
deserialize([], El, Acc) ->
[El|Acc].