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xmpp.chapril.org-ejabberd
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xmpp.chapril.org-ejabberd/src/ejd2odbc.erl

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%%%----------------------------------------------------------------------
%%% File : ejd2odbc.erl
%%% Author : Alexey Shchepin <alexey@sevcom.net>
%%% Purpose : Export some mnesia tables to SQL DB
%%% 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/2,
export_roster/2,
export_offline/2,
export_last/2,
export_vcard/2,
export_vcard_search/2,
export_private_storage/2]).
-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}).
-record(vcard, {us, vcard}).
-record(vcard_search, {us,
user, luser,
fn, lfn,
family, lfamily,
given, lgiven,
middle, lmiddle,
nickname, lnickname,
bday, lbday,
ctry, lctry,
locality, llocality,
email, lemail,
orgname, lorgname,
orgunit, lorgunit
}).
-record(private_storage, {usns, xml}).
-define(MAX_RECORDS_PER_TRANSACTION, 1000).
%%%----------------------------------------------------------------------
%%% API
%%%----------------------------------------------------------------------
%%% How to use:
%%% A table can be converted from Mnesia to an ODBC database by calling
%%% one of the API function with the following parameters:
%%% - Server is the server domain you want to convert
%%% - Output can be either odbc to export to the configured relational
%%% database or "Filename" to export to text file.
export_passwd(Server, Output) ->
export_common(
Server, passwd, Output,
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, Output) ->
export_common(
Server, roster, Output,
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, askmessage, "
" 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, Output) ->
export_common(
Server, offline_msg, Output,
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, Output) ->
export_common(
Server, last_activity, Output,
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).
export_vcard(Server, Output) ->
export_common(
Server, vcard, Output,
fun(Host, #vcard{us = {LUser, LServer},
vcard = VCARD})
when LServer == Host ->
Username = ejabberd_odbc:escape(LUser),
SVCARD = ejabberd_odbc:escape(
lists:flatten(xml:element_to_string(VCARD))),
["delete from vcard where username='", Username, "';"
"insert into vcard(username, vcard) "
"values ('", Username, "', '", SVCARD, "');"];
(_Host, _R) ->
[]
end).
export_vcard_search(Server, Output) ->
export_common(
Server, vcard_search, Output,
fun(Host, #vcard_search{user = {User, LServer},
luser = LUser,
fn = FN, lfn = LFN,
family = Family, lfamily = LFamily,
given = Given, lgiven = LGiven,
middle = Middle, lmiddle = LMiddle,
nickname = Nickname, lnickname = LNickname,
bday = BDay, lbday = LBDay,
ctry = CTRY, lctry = LCTRY,
locality = Locality, llocality = LLocality,
email = EMail, lemail = LEMail,
orgname = OrgName, lorgname = LOrgName,
orgunit = OrgUnit, lorgunit = LOrgUnit
})
when LServer == Host ->
Username = ejabberd_odbc:escape(User),
LUsername = ejabberd_odbc:escape(LUser),
SFN = ejabberd_odbc:escape(FN),
SLFN = ejabberd_odbc:escape(LFN),
SFamily = ejabberd_odbc:escape(Family),
SLFamily = ejabberd_odbc:escape(LFamily),
SGiven = ejabberd_odbc:escape(Given),
SLGiven = ejabberd_odbc:escape(LGiven),
SMiddle = ejabberd_odbc:escape(Middle),
SLMiddle = ejabberd_odbc:escape(LMiddle),
SNickname = ejabberd_odbc:escape(Nickname),
SLNickname = ejabberd_odbc:escape(LNickname),
SBDay = ejabberd_odbc:escape(BDay),
SLBDay = ejabberd_odbc:escape(LBDay),
SCTRY = ejabberd_odbc:escape(CTRY),
SLCTRY = ejabberd_odbc:escape(LCTRY),
SLocality = ejabberd_odbc:escape(Locality),
SLLocality = ejabberd_odbc:escape(LLocality),
SEMail = ejabberd_odbc:escape(EMail),
SLEMail = ejabberd_odbc:escape(LEMail),
SOrgName = ejabberd_odbc:escape(OrgName),
SLOrgName = ejabberd_odbc:escape(LOrgName),
SOrgUnit = ejabberd_odbc:escape(OrgUnit),
SLOrgUnit = ejabberd_odbc:escape(LOrgUnit),
["delete from vcard_search where lusername='", LUsername, "';"
"insert into vcard_search("
" username, lusername, fn, lfn, family, lfamily,"
" given, lgiven, middle, lmiddle, nickname, lnickname,"
" bday, lbday, ctry, lctry, locality, llocality,"
" email, lemail, orgname, lorgname, orgunit, lorgunit)"
"values (",
" '", Username, "', '", LUsername, "',"
" '", SFN, "', '", SLFN, "',"
" '", SFamily, "', '", SLFamily, "',"
" '", SGiven, "', '", SLGiven, "',"
" '", SMiddle, "', '", SLMiddle, "',"
" '", SNickname, "', '", SLNickname, "',"
" '", SBDay, "', '", SLBDay, "',"
" '", SCTRY, "', '", SLCTRY, "',"
" '", SLocality, "', '", SLLocality, "',"
" '", SEMail, "', '", SLEMail, "',"
" '", SOrgName, "', '", SLOrgName, "',"
" '", SOrgUnit, "', '", SLOrgUnit, "');"];
(_Host, _R) ->
[]
end).
export_private_storage(Server, Output) ->
export_common(
Server, private_storage, Output,
fun(Host, #private_storage{usns = {LUser, LServer, XMLNS},
xml = Data})
when LServer == Host ->
Username = ejabberd_odbc:escape(LUser),
LXMLNS = ejabberd_odbc:escape(XMLNS),
SData = ejabberd_odbc:escape(
lists:flatten(xml:element_to_string(Data))),
odbc_queries:set_private_data_sql(Username, LXMLNS, SData);
(_Host, _R) ->
[]
end).
%%%----------------------------------------------------------------------
%%% Internal functions
%%%----------------------------------------------------------------------
export_common(Server, Table, Output, ConvertFun) ->
IO = case Output of
odbc ->
odbc;
_ ->
{ok, IODevice} = file:open(Output, [write, raw]),
IODevice
end,
mnesia:transaction(
fun() ->
mnesia:read_lock_table(Table),
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 ->
%% Execute full SQL transaction
output(LServer, IO,
["begin;",
lists:reverse([SQL | SQLs]),
"commit"]),
{0, []}
end
end
end, {0, []}, Table),
%% Execute SQL transaction with remaining records
output(LServer, IO,
["begin;",
lists:reverse(SQLs),
"commit"])
end).
output(LServer, IO, SQL) ->
case IO of
odbc ->
catch ejabberd_odbc:sql_query(LServer, SQL);
_ ->
file:write(IO, [SQL, $;, $\n])
end.
record_to_string(#roster{usj = {User, _Server, JID},
name = Name,
subscription = Subscription,
ask = Ask,
askmessage = AskMessage}) ->
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,
SAskMessage =
case catch ejabberd_odbc:escape(
binary_to_list(list_to_binary([AskMessage]))) of
{'EXIT', _Reason} ->
[];
SAM ->
SAM
end,
["("
"'", Username, "',"
"'", SJID, "',"
"'", Nick, "',"
"'", SSubscription, "',"
"'", SAsk, "',"
"'", SAskMessage, "',"
"'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].
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