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|
%%%----------------------------------------------------------------------
%%% File : ejd2odbc.erl
%%% Author : Alexey Shchepin <alexey@sevcom.net>
%%% Purpose : Import of jabberd1.4 user spool file
%%% Created : 22 Aug 2005 by Alexey Shchepin <alexey@sevcom.net>
%%% Id : $Id$
%%%----------------------------------------------------------------------
-module(ejd2odbc).
-author('alexey@sevcom.net').
-vsn('$Revision$ ').
%% External exports
-export([export_passwd/1,
export_roster/1,
export_offline/1,
export_last/1]).
-include("ejabberd.hrl").
-include("jlib.hrl").
-include("mod_roster.hrl").
-record(offline_msg, {us, timestamp, expire, from, to, packet}).
-record(last_activity, {us, timestamp, status}).
-define(MAX_RECORDS_PER_TRANSACTION, 1000).
%%%----------------------------------------------------------------------
%%% API
%%%----------------------------------------------------------------------
export_passwd(Server) ->
export_common(
Server, passwd,
fun(Host, {passwd, {LUser, LServer}, Password} = R)
when LServer == Host ->
Username = ejabberd_odbc:escape(LUser),
Pass = ejabberd_odbc:escape(Password),
["delete from users where username='", Username ,"';"
"insert into users(username, password) "
"values ('", Username, "', '", Pass, "');"];
(_Host, _R) ->
[]
end).
export_roster(Server) ->
export_common(
Server, roster,
fun(Host, #roster{usj = {LUser, LServer, LJID}} = R)
when LServer == Host ->
Username = ejabberd_odbc:escape(LUser),
SJID = ejabberd_odbc:escape(jlib:jid_to_string(LJID)),
ItemVals = record_to_string(R),
ItemGroups = groups_to_string(R),
["delete from rosterusers "
" where username='", Username, "' "
" and jid='", SJID, "';"
"insert into rosterusers("
" username, jid, nick, "
" subscription, ask, "
" server, subscribe, type) "
" values ", ItemVals, ";"
"delete from rostergroups "
" where username='", Username, "' "
" and jid='", SJID, "';",
[["insert into rostergroups("
" username, jid, grp) "
" values ", ItemGroup, ";"] ||
ItemGroup <- ItemGroups]];
(_Host, _R) ->
[]
end).
export_offline(Server) ->
export_common(
Server, offline_msg,
fun(Host, #offline_msg{us = {LUser, LServer},
timestamp = TimeStamp,
from = From,
to = To,
packet = Packet})
when LServer == Host ->
Username = ejabberd_odbc:escape(LUser),
{xmlelement, Name, Attrs, Els} = Packet,
Attrs2 = jlib:replace_from_to_attrs(
jlib:jid_to_string(From),
jlib:jid_to_string(To),
Attrs),
NewPacket = {xmlelement, Name, Attrs2,
Els ++
[jlib:timestamp_to_xml(
calendar:now_to_universal_time(TimeStamp))]},
XML =
ejabberd_odbc:escape(
lists:flatten(
xml:element_to_string(NewPacket))),
["insert into spool(username, xml) "
"values ('", Username, "', '",
XML,
"');"];
(_Host, _R) ->
[]
end).
export_last(Server) ->
export_common(
Server, last_activity,
fun(Host, #last_activity{us = {LUser, LServer},
timestamp = TimeStamp,
status = Status})
when LServer == Host ->
Username = ejabberd_odbc:escape(LUser),
Seconds = ejabberd_odbc:escape(integer_to_list(TimeStamp)),
State = ejabberd_odbc:escape(Status),
["delete from last where username='", Username, "';"
"insert into last(username, seconds, state) "
"values ('", Username, "', '", Seconds, "', '", State, "');"];
(_Host, _R) ->
[]
end).
%%%----------------------------------------------------------------------
%%% Internal functions
%%%----------------------------------------------------------------------
export_common(Server, Table, ConvertFun) ->
mnesia:transaction(
fun() ->
mnesia:read_lock_table(passwd),
LServer = jlib:nameprep(Server),
{_N, SQLs} =
mnesia:foldl(
fun(R, {N, SQLs} = Acc) ->
case ConvertFun(LServer, R) of
[] ->
Acc;
SQL ->
if
N < ?MAX_RECORDS_PER_TRANSACTION - 1 ->
{N + 1, [SQL | SQLs]};
true ->
catch ejabberd_odbc:sql_query(
LServer,
["begin;",
lists:reverse([SQL | SQLs]),
"commit"]),
{0, []}
end
end
end, {0, []}, Table),
catch ejabberd_odbc:sql_query(
LServer,
["begin;",
lists:reverse(SQLs),
"commit"])
end).
record_to_string(#roster{usj = {User, Server, JID},
name = Name,
subscription = Subscription,
ask = Ask}) ->
Username = ejabberd_odbc:escape(User),
SJID = ejabberd_odbc:escape(jlib:jid_to_string(JID)),
Nick = ejabberd_odbc:escape(Name),
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,
["("
"'", Username, "',"
"'", SJID, "',"
"'", Nick, "',"
"'", SSubscription, "',"
"'", SAsk, "',"
"'N', '', 'item')"].
groups_to_string(#roster{usj = {User, Server, JID},
groups = Groups}) ->
Username = ejabberd_odbc:escape(User),
SJID = ejabberd_odbc:escape(jlib:jid_to_string(JID)),
[["("
"'", Username, "',"
"'", SJID, "',"
"'", ejabberd_odbc:escape(Group), "')"] || Group <- Groups].
|
