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mirror of https://github.com/processone/ejabberd.git synced 2024-12-24 17:29:28 +01:00
xmpp.chapril.org-ejabberd/src/mod_roster_sql.erl
2017-02-26 10:07:12 +03:00

301 lines
9.2 KiB
Erlang

%%%-------------------------------------------------------------------
%%% File : mod_roster_sql.erl
%%% Author : Evgeny Khramtsov <ekhramtsov@process-one.net>
%%% Created : 14 Apr 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(mod_roster_sql).
-compile([{parse_transform, ejabberd_sql_pt}]).
-behaviour(mod_roster).
%% API
-export([init/2, read_roster_version/2, write_roster_version/4,
get_roster/2, get_roster_by_jid/3,
roster_subscribe/4, get_roster_by_jid_with_groups/3,
remove_user/2, update_roster/4, del_roster/3, transaction/2,
read_subscription_and_groups/3, get_only_items/2,
import/3, export/1, raw_to_record/2]).
-include("mod_roster.hrl").
-include("ejabberd_sql_pt.hrl").
-include("logger.hrl").
%%%===================================================================
%%% API
%%%===================================================================
init(_Host, _Opts) ->
ok.
read_roster_version(LUser, LServer) ->
case sql_queries:get_roster_version(LServer, LUser) of
{selected, [{Version}]} -> Version;
{selected, []} -> error
end.
write_roster_version(LUser, LServer, InTransaction, Ver) ->
if InTransaction ->
sql_queries:set_roster_version(LUser, Ver);
true ->
sql_queries:sql_transaction(
LServer,
fun () ->
sql_queries:set_roster_version(LUser, Ver)
end)
end.
get_roster(LUser, LServer) ->
case catch sql_queries:get_roster(LServer, LUser) of
{selected, Items} when is_list(Items) ->
JIDGroups = case catch sql_queries:get_roster_jid_groups(
LServer, LUser) of
{selected, JGrps} when is_list(JGrps) ->
JGrps;
_ ->
[]
end,
GroupsDict = lists:foldl(fun({J, G}, Acc) ->
dict:append(J, G, Acc)
end,
dict:new(), JIDGroups),
lists:flatmap(
fun(I) ->
case raw_to_record(LServer, I) of
%% Bad JID in database:
error -> [];
R ->
SJID = jid:encode(R#roster.jid),
Groups = case dict:find(SJID, GroupsDict) of
{ok, Gs} -> Gs;
error -> []
end,
[R#roster{groups = Groups}]
end
end, Items);
_ ->
[]
end.
get_roster_by_jid(LUser, LServer, LJID) ->
{selected, Res} =
sql_queries:get_roster_by_jid(LServer, LUser, jid:encode(LJID)),
case Res of
[] ->
#roster{usj = {LUser, LServer, LJID},
us = {LUser, LServer}, jid = LJID};
[I] ->
R = raw_to_record(LServer, I),
case R of
%% Bad JID in database:
error ->
#roster{usj = {LUser, LServer, LJID},
us = {LUser, LServer}, jid = LJID};
_ ->
R#roster{usj = {LUser, LServer, LJID},
us = {LUser, LServer}, jid = LJID, name = <<"">>}
end
end.
get_only_items(LUser, LServer) ->
case catch sql_queries:get_roster(LServer, LUser) of
{selected, Is} when is_list(Is) ->
lists:flatmap(
fun(I) ->
case raw_to_record(LServer, I) of
error -> [];
R -> [R]
end
end, Is);
_ -> []
end.
roster_subscribe(_LUser, _LServer, _LJID, Item) ->
ItemVals = record_to_row(Item),
sql_queries:roster_subscribe(ItemVals).
transaction(LServer, F) ->
ejabberd_sql:sql_transaction(LServer, F).
get_roster_by_jid_with_groups(LUser, LServer, LJID) ->
SJID = jid:encode(LJID),
case sql_queries:get_roster_by_jid(LServer, LUser, SJID) of
{selected, [I]} ->
case raw_to_record(LServer, I) of
error ->
#roster{usj = {LUser, LServer, LJID},
us = {LUser, LServer}, jid = LJID};
R ->
Groups =
case sql_queries:get_roster_groups(LServer, LUser, SJID) of
{selected, JGrps} when is_list(JGrps) ->
[JGrp || {JGrp} <- JGrps];
_ -> []
end,
R#roster{groups = Groups}
end;
{selected, []} ->
#roster{usj = {LUser, LServer, LJID},
us = {LUser, LServer}, jid = LJID}
end.
remove_user(LUser, LServer) ->
sql_queries:del_user_roster_t(LServer, LUser),
{atomic, ok}.
update_roster(LUser, LServer, LJID, Item) ->
SJID = jid:encode(LJID),
ItemVals = record_to_row(Item),
ItemGroups = Item#roster.groups,
sql_queries:update_roster(LServer, LUser, SJID, ItemVals,
ItemGroups).
del_roster(LUser, LServer, LJID) ->
SJID = jid:encode(LJID),
sql_queries:del_roster(LServer, LUser, SJID).
read_subscription_and_groups(LUser, LServer, LJID) ->
SJID = jid:encode(LJID),
case catch sql_queries:get_subscription(LServer, LUser, SJID) of
{selected, [{SSubscription}]} ->
Subscription = case SSubscription of
<<"B">> -> both;
<<"T">> -> to;
<<"F">> -> from;
<<"N">> -> none;
<<"">> -> none;
_ ->
?ERROR_MSG("~s", [format_row_error(
LUser, LServer,
{subscription, SSubscription})]),
none
end,
Groups = case catch sql_queries:get_rostergroup_by_jid(
LServer, LUser, SJID) of
{selected, JGrps} when is_list(JGrps) ->
[JGrp || {JGrp} <- JGrps];
_ -> []
end,
{Subscription, Groups};
_ ->
error
end.
export(_Server) ->
[{roster,
fun(Host, #roster{usj = {_LUser, LServer, _LJID}} = R)
when LServer == Host ->
ItemVals = record_to_row(R),
ItemGroups = R#roster.groups,
sql_queries:update_roster_sql(ItemVals, ItemGroups);
(_Host, _R) ->
[]
end},
{roster_version,
fun(Host, #roster_version{us = {LUser, LServer}, version = Ver})
when LServer == Host ->
[?SQL("delete from roster_version where username=%(LUser)s;"),
?SQL("insert into roster_version(username, version) values("
" %(LUser)s, %(Ver)s);")];
(_Host, _R) ->
[]
end}].
import(_, _, _) ->
ok.
%%%===================================================================
%%% Internal functions
%%%===================================================================
raw_to_record(LServer,
[User, SJID, Nick, SSubscription, SAsk, SAskMessage,
_SServer, _SSubscribe, _SType]) ->
raw_to_record(LServer,
{User, SJID, Nick, SSubscription, SAsk, SAskMessage,
_SServer, _SSubscribe, _SType});
raw_to_record(LServer,
{User, SJID, Nick, SSubscription, SAsk, SAskMessage,
_SServer, _SSubscribe, _SType}) ->
try jid:decode(SJID) of
JID ->
LJID = jid:tolower(JID),
Subscription = case SSubscription of
<<"B">> -> both;
<<"T">> -> to;
<<"F">> -> from;
<<"N">> -> none;
<<"">> -> none;
_ ->
?ERROR_MSG("~s", [format_row_error(
User, LServer,
{subscription, SSubscription})]),
none
end,
Ask = case SAsk of
<<"S">> -> subscribe;
<<"U">> -> unsubscribe;
<<"B">> -> both;
<<"O">> -> out;
<<"I">> -> in;
<<"N">> -> none;
<<"">> -> none;
_ ->
?ERROR_MSG("~s", [format_row_error(User, LServer, {ask, SAsk})]),
none
end,
#roster{usj = {User, LServer, LJID},
us = {User, LServer}, jid = LJID, name = Nick,
subscription = Subscription, ask = Ask,
askmessage = SAskMessage}
catch _:{bad_jid, _} ->
?ERROR_MSG("~s", [format_row_error(User, LServer, {jid, SJID})]),
error
end.
record_to_row(
#roster{us = {LUser, _LServer},
jid = JID, name = Name, subscription = Subscription,
ask = Ask, askmessage = AskMessage}) ->
SJID = jid:encode(jid:tolower(JID)),
SSubscription = case Subscription of
both -> <<"B">>;
to -> <<"T">>;
from -> <<"F">>;
none -> <<"N">>
end,
SAsk = case Ask of
subscribe -> <<"S">>;
unsubscribe -> <<"U">>;
both -> <<"B">>;
out -> <<"O">>;
in -> <<"I">>;
none -> <<"N">>
end,
{LUser, SJID, Name, SSubscription, SAsk, AskMessage}.
format_row_error(User, Server, Why) ->
[case Why of
{jid, JID} -> ["Malformed 'jid' field with value '", JID, "'"];
{subscription, Sub} -> ["Malformed 'subscription' field with value '", Sub, "'"];
{ask, Ask} -> ["Malformed 'ask' field with value '", Ask, "'"]
end,
" detected for ", User, "@", Server, " in table 'rosterusers'"].