Chapril/xmpp.chapril.org-ejabberd
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xmpp.chapril.org-ejabberd/src/prosody2ejabberd.erl

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%%%-------------------------------------------------------------------
%%% File : prosody2ejabberd.erl
%%% Author : Evgeny Khramtsov <ekhramtsov@process-one.net>
%%% Created : 20 Jan 2016 by Evgeny Khramtsov <ekhramtsov@process-one.net>
%%%
%%%
%%% ejabberd, Copyright (C) 2002-2021 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_lib("xmpp/include/scram.hrl").
-include_lib("xmpp/include/xmpp.hrl").
-include("logger.hrl").
-include("mod_roster.hrl").
-include("mod_offline.hrl").
-include("mod_privacy.hrl").
%%%===================================================================
%%% API
%%%===================================================================
from_dir(ProsodyDir) ->
case code:ensure_loaded(luerl) of
{module, _} ->
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", "pep", "pubsub"])
end, HostDirs);
{error, Why} = Err ->
?ERROR_MSG("Failed to list ~ts: ~ts",
[ProsodyDir, file:format_error(Why)]),
Err
end;
{error, _} = Err ->
?ERROR_MSG("The file 'luerl.beam' is not found: maybe "
"ejabberd is not compiled with Lua support", []),
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 Type of
"pep" ->
case filelib:is_dir(FilePath) of
true ->
JID = list_to_binary(File ++ "@" ++ Host),
convert_dir(FilePath, JID, "pubsub");
false ->
ok
end;
_ ->
case eval_file(FilePath) of
{ok, Data} ->
Name = iolist_to_binary(filename:rootname(File)),
convert_data(url_decode(Host), Type,
url_decode(Name), Data);
Err ->
Err
end
end
end, Files);
{error, enoent} ->
ok;
{error, Why} = Err ->
?ERROR_MSG("Failed to list ~ts: ~ts",
[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 ~ts: ~p", [Path, Why]),
Err
end;
{error, Why} = Err ->
?ERROR_MSG("Failed to read file ~ts: ~ts",
[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 = misc:hex_to_base64(proplists:get_value(<<"stored_key">>, Data, <<"">>)),
serverkey = misc:hex_to_base64(proplists:get_value(<<"server_key">>, Data, <<"">>)),
salt = base64:encode(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
ok ->
ok;
Err ->
?ERROR_MSG("Failed to register user ~ts@~ts: ~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]) ->
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(jid:make(User, Host), 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]) ->
RoomJID1 = case proplists:get_value(<<"jid">>, Data, not_found) of
not_found -> proplists:get_value(<<"_jid">>, Data, room_jid_not_found);
A when is_binary(A) -> A
end,
RoomJID = jid:decode(RoomJID1),
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(find_serverhost(RoomJID#jid.lserver), RoomJID#jid.lserver,
RoomJID#jid.luser, RoomCfg);
_ ->
ok
end;
convert_data(Host, "offline", User, [Data]) ->
LUser = jid:nodeprep(User),
LServer = jid:nameprep(Host),
lists:foreach(
fun({_, RawXML}) ->
case deserialize(RawXML) of
[El] ->
case el_to_offline_msg(LUser, LServer, El) of
[Msg] -> ok = mod_offline:store_offline_msg(Msg);
[] -> ok
end;
_ ->
ok
end
end, Data);
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_list(Priv);
convert_data(HostStr, "pubsub", Node, [Data]) ->
case decode_pubsub_host(HostStr) of
Host when is_binary(Host);
is_tuple(Host) ->
Type = node_type(Host),
NodeData = convert_node_config(HostStr, Data),
DefaultConfig = mod_pubsub:config(Host, default_node_config, []),
Owner = proplists:get_value(owner, NodeData),
Options = lists:foldl(
fun({_Opt, undefined}, Acc) ->
Acc;
({Opt, Val}, Acc) ->
lists:keystore(Opt, 1, Acc, {Opt, Val})
end, DefaultConfig, proplists:get_value(options, NodeData)),
case mod_pubsub:tree_action(Host, create_node, [Host, Node, Type, Owner, Options, []]) of
{ok, Nidx} ->
case mod_pubsub:node_action(Host, Type, create_node, [Nidx, Owner]) of
{result, _} ->
Access = open, % always allow subscriptions proplists:get_value(access_model, Options),
Publish = open, % always allow publications proplists:get_value(publish_model, Options),
MaxItems = proplists:get_value(max_items, Options),
Affiliations = proplists:get_value(affiliations, NodeData),
Subscriptions = proplists:get_value(subscriptions, NodeData),
Items = proplists:get_value(items, NodeData),
[mod_pubsub:node_action(Host, Type, set_affiliation,
[Nidx, Entity, Aff])
|| {Entity, Aff} <- Affiliations, Entity =/= Owner],
[mod_pubsub:node_action(Host, Type, subscribe_node,
[Nidx, jid:make(Entity), Entity, Access, never, [], [], []])
|| Entity <- Subscriptions],
[mod_pubsub:node_action(Host, Type, publish_item,
[Nidx, Publisher, Publish, MaxItems, ItemId, Payload, []])
|| {ItemId, Publisher, Payload} <- Items];
Error ->
Error
end;
Error ->
?ERROR_MSG("Failed to import pubsub node ~ts on ~p:~n~p",
[Node, Host, NodeData]),
Error
end;
Error ->
?ERROR_MSG("Failed to import pubsub node: ~p", [Error]),
Error
end;
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},
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 = misc:binary_to_atom(Sub)}];
({<<"ask">>, <<"subscribe">>}, [R]) ->
[R#roster{ask = out}];
({<<"name">>, Name}, [R]) ->
[R#roster{name = Name}];
({<<"persist">>, false}, _) ->
[];
(_, []) ->
[]
end, [InitR], LuaList)
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, <<>>}, misc: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)},
{mam, proplists:get_bool(<<"archiving">>, Config)},
{description, proplists:get_value(<<"description">>, Config, <<"">>)},
{members_only, proplists:get_bool(<<"members_only">>, Config)},
{moderated, proplists:get_bool(<<"moderated">>, Config)},
{persistent, proplists:get_bool(<<"persistent">>, Config)},
{anonymous, Anonymous}] ++ Pass ++ Subj.
convert_privacy_item({_, Item}) ->
Action = proplists:get_value(<<"action">>, Item, <<"allow">>),
Order = proplists:get_value(<<"order">>, Item, 0),
T = misc: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, misc:binary_to_atom(V)}
end
catch _:_ ->
{none, none}
end,
#listitem{type = Type,
value = Value,
action = misc: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}.
url_decode(Encoded) ->
url_decode(Encoded, <<>>).
url_decode(<<$%, Hi, Lo, Tail/binary>>, Acc) ->
Hex = list_to_integer([Hi, Lo], 16),
url_decode(Tail, <<Acc/binary, Hex>>);
url_decode(<<H, Tail/binary>>, Acc) ->
url_decode(Tail, <<Acc/binary, H>>);
url_decode(<<>>, Acc) ->
Acc.
decode_pubsub_host(Host) ->
try jid:decode(Host) of
#jid{luser = <<>>, lserver = LServer} -> LServer;
#jid{luser = LUser, lserver = LServer} -> {LUser, LServer, <<>>}
catch _:{bad_jid, _} -> bad_jid
end.
node_type({_U, _S, _R}) -> <<"pep">>;
node_type(Host) -> hd(mod_pubsub:plugins(Host)).
max_items(Config, Default) ->
case round(proplists:get_value(<<"max_items">>, Config, Default)) of
I when I =< 0 -> Default;
I -> I
end.
convert_node_affiliations(Data) ->
lists:flatmap(
fun({J, Aff}) ->
try jid:decode(J) of
JID ->
[{JID, misc:binary_to_atom(Aff)}]
catch _:{bad_jid, _} ->
[]
end
end, proplists:get_value(<<"affiliations">>, Data, [])).
convert_node_subscriptions(Data) ->
lists:flatmap(
fun({J, true}) ->
try jid:decode(J) of
JID ->
[jid:tolower(JID)]
catch _:{bad_jid, _} ->
[]
end;
(_) ->
[]
end, proplists:get_value(<<"subscribers">>, Data, [])).
convert_node_items(Host, Data) ->
Authors = proplists:get_value(<<"data_author">>, Data, []),
lists:flatmap(
fun({ItemId, Item}) ->
try jid:decode(proplists:get_value(ItemId, Authors, Host)) of
JID ->
[El] = deserialize(Item),
[{ItemId, JID, El#xmlel.children}]
catch _:{bad_jid, _} ->
[]
end
end, proplists:get_value(<<"data">>, Data, [])).
convert_node_config(Host, Data) ->
Config = proplists:get_value(<<"config">>, Data, []),
[{affiliations, convert_node_affiliations(Data)},
{subscriptions, convert_node_subscriptions(Data)},
{owner, jid:decode(proplists:get_value(<<"creator">>, Config, Host))},
{items, convert_node_items(Host, Data)},
{options, [
{deliver_notifications,
proplists:get_value(<<"deliver_notifications">>, Config, true)},
{deliver_payloads,
proplists:get_value(<<"deliver_payloads">>, Config, true)},
{persist_items,
proplists:get_value(<<"persist_items">>, Config, true)},
{max_items,
max_items(Config, 10)},
{access_model,
misc:binary_to_atom(proplists:get_value(<<"access_model">>, Config, <<"open">>))},
{publish_model,
misc:binary_to_atom(proplists:get_value(<<"publish_model">>, Config, <<"publishers">>))},
{title,
proplists:get_value(<<"title">>, Config, <<"">>)}
]}
].
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.
find_serverhost(Host) ->
[ServerHost] =
lists:filter(
fun(ServerHost) ->
case gen_mod:is_loaded(ServerHost, mod_muc) of
true ->
lists:member(Host, gen_mod:get_module_opt_hosts(ServerHost, mod_muc));
false ->
false
end
end, ejabberd_option:hosts()),
ServerHost.
deserialize(L) ->
deserialize(L, #xmlel{}, []).
deserialize([{Other, _}|T], El, Acc)
when (Other == <<"key">>)
or (Other == <<"when">>)
or (Other == <<"with">>) ->
deserialize(T, El, Acc);
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([], #xmlel{children = Els} = El, Acc) ->
[El#xmlel{children = lists:reverse(Els)}|Acc].
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