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https://github.com/processone/ejabberd.git
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Clean mod_offline.erl from DB specific code
This commit is contained in:
Evgeniy Khramtsov
parent
860db2ddca
commit
901d2e0aed
File diff suppressed because it is too large
Load Diff
232
src/mod_offline_mnesia.erl
Normal file
232
src/mod_offline_mnesia.erl
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@ -0,0 +1,232 @@
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%%%-------------------------------------------------------------------
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%%% @author Evgeny Khramtsov <ekhramtsov@process-one.net>
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%%% @copyright (C) 2016, Evgeny Khramtsov
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%%% @doc
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%%%
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%%% @end
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%%% Created : 15 Apr 2016 by Evgeny Khramtsov <ekhramtsov@process-one.net>
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%%%-------------------------------------------------------------------
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-module(mod_offline_mnesia).
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-behaviour(mod_offline).
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-export([init/2, store_messages/5, pop_messages/2, remove_expired_messages/1,
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remove_old_messages/2, remove_user/2, read_message_headers/2,
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read_message/3, remove_message/3, read_all_messages/2,
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remove_all_messages/2, count_messages/2, import/2]).
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-include("jlib.hrl").
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-include("mod_offline.hrl").
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-include("logger.hrl").
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-define(OFFLINE_TABLE_LOCK_THRESHOLD, 1000).
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%%%===================================================================
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%%% API
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%%%===================================================================
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init(_Host, _Opts) ->
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mnesia:create_table(offline_msg,
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[{disc_only_copies, [node()]}, {type, bag},
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{attributes, record_info(fields, offline_msg)}]),
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update_table().
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store_messages(_Host, US, Msgs, Len, MaxOfflineMsgs) ->
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F = fun () ->
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Count = if MaxOfflineMsgs =/= infinity ->
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Len + count_mnesia_records(US);
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true -> 0
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end,
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if Count > MaxOfflineMsgs -> discard;
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true ->
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if Len >= (?OFFLINE_TABLE_LOCK_THRESHOLD) ->
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mnesia:write_lock_table(offline_msg);
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true -> ok
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end,
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lists:foreach(fun (M) -> mnesia:write(M) end, Msgs)
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end
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end,
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mnesia:transaction(F).
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pop_messages(LUser, LServer) ->
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US = {LUser, LServer},
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F = fun () ->
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Rs = mnesia:wread({offline_msg, US}),
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mnesia:delete({offline_msg, US}),
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Rs
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end,
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case mnesia:transaction(F) of
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{atomic, L} ->
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{ok, lists:keysort(#offline_msg.timestamp, L)};
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{aborted, Reason} ->
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{error, Reason}
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end.
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remove_expired_messages(_LServer) ->
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TimeStamp = p1_time_compat:timestamp(),
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F = fun () ->
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mnesia:write_lock_table(offline_msg),
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mnesia:foldl(fun (Rec, _Acc) ->
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case Rec#offline_msg.expire of
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never -> ok;
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TS ->
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if TS < TimeStamp ->
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mnesia:delete_object(Rec);
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true -> ok
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end
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end
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end,
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ok, offline_msg)
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end,
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mnesia:transaction(F).
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remove_old_messages(Days, _LServer) ->
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S = p1_time_compat:system_time(seconds) - 60 * 60 * 24 * Days,
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MegaSecs1 = S div 1000000,
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Secs1 = S rem 1000000,
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TimeStamp = {MegaSecs1, Secs1, 0},
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F = fun () ->
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mnesia:write_lock_table(offline_msg),
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mnesia:foldl(fun (#offline_msg{timestamp = TS} = Rec,
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_Acc)
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when TS < TimeStamp ->
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mnesia:delete_object(Rec);
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(_Rec, _Acc) -> ok
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end,
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ok, offline_msg)
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end,
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mnesia:transaction(F).
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remove_user(LUser, LServer) ->
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US = {LUser, LServer},
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F = fun () -> mnesia:delete({offline_msg, US}) end,
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mnesia:transaction(F).
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read_message_headers(LUser, LServer) ->
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Msgs = mnesia:dirty_read({offline_msg, {LUser, LServer}}),
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Hdrs = lists:map(
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fun(#offline_msg{from = From, to = To, packet = Pkt,
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timestamp = TS}) ->
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Seq = now_to_integer(TS),
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NewPkt = jlib:add_delay_info(Pkt, LServer, TS,
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<<"Offline Storage">>),
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{Seq, From, To, NewPkt}
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end, Msgs),
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lists:keysort(1, Hdrs).
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read_message(LUser, LServer, I) ->
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US = {LUser, LServer},
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TS = integer_to_now(I),
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case mnesia:dirty_match_object(
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offline_msg, #offline_msg{us = US, timestamp = TS, _ = '_'}) of
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[Msg|_] ->
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{ok, Msg};
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_ ->
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error
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end.
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remove_message(LUser, LServer, I) ->
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US = {LUser, LServer},
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TS = integer_to_now(I),
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Msgs = mnesia:dirty_match_object(
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offline_msg, #offline_msg{us = US, timestamp = TS, _ = '_'}),
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lists:foreach(
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fun(Msg) ->
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mnesia:dirty_delete_object(Msg)
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end, Msgs).
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read_all_messages(LUser, LServer) ->
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US = {LUser, LServer},
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lists:keysort(#offline_msg.timestamp,
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mnesia:dirty_read({offline_msg, US})).
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remove_all_messages(LUser, LServer) ->
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US = {LUser, LServer},
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F = fun () ->
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mnesia:write_lock_table(offline_msg),
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lists:foreach(fun (Msg) -> mnesia:delete_object(Msg) end,
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mnesia:dirty_read({offline_msg, US}))
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end,
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mnesia:transaction(F).
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count_messages(LUser, LServer) ->
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US = {LUser, LServer},
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F = fun () ->
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count_mnesia_records(US)
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end,
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case catch mnesia:async_dirty(F) of
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I when is_integer(I) -> I;
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_ -> 0
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end.
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import(_LServer, #offline_msg{} = Msg) ->
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mnesia:dirty_write(Msg).
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%%%===================================================================
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%%% Internal functions
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%%%===================================================================
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%% Return the number of records matching a given match expression.
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%% This function is intended to be used inside a Mnesia transaction.
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%% The count has been written to use the fewest possible memory by
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%% getting the record by small increment and by using continuation.
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-define(BATCHSIZE, 100).
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count_mnesia_records(US) ->
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MatchExpression = #offline_msg{us = US, _ = '_'},
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case mnesia:select(offline_msg, [{MatchExpression, [], [[]]}],
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?BATCHSIZE, read) of
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{Result, Cont} ->
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Count = length(Result),
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count_records_cont(Cont, Count);
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'$end_of_table' ->
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0
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end.
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count_records_cont(Cont, Count) ->
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case mnesia:select(Cont) of
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{Result, Cont} ->
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NewCount = Count + length(Result),
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count_records_cont(Cont, NewCount);
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'$end_of_table' ->
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Count
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end.
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jid_to_binary(#jid{user = U, server = S, resource = R,
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luser = LU, lserver = LS, lresource = LR}) ->
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#jid{user = iolist_to_binary(U),
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server = iolist_to_binary(S),
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resource = iolist_to_binary(R),
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luser = iolist_to_binary(LU),
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lserver = iolist_to_binary(LS),
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lresource = iolist_to_binary(LR)}.
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now_to_integer({MS, S, US}) ->
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(MS * 1000000 + S) * 1000000 + US.
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integer_to_now(Int) ->
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Secs = Int div 1000000,
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USec = Int rem 1000000,
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MSec = Secs div 1000000,
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Sec = Secs rem 1000000,
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{MSec, Sec, USec}.
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update_table() ->
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Fields = record_info(fields, offline_msg),
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case mnesia:table_info(offline_msg, attributes) of
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Fields ->
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ejabberd_config:convert_table_to_binary(
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offline_msg, Fields, bag,
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fun(#offline_msg{us = {U, _}}) -> U end,
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fun(#offline_msg{us = {U, S},
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from = From,
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to = To,
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packet = El} = R) ->
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R#offline_msg{us = {iolist_to_binary(U),
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iolist_to_binary(S)},
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from = jid_to_binary(From),
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to = jid_to_binary(To),
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packet = fxml:to_xmlel(El)}
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end);
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_ ->
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?INFO_MSG("Recreating offline_msg table", []),
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mnesia:transform_table(offline_msg, ignore, Fields)
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end.
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153
src/mod_offline_riak.erl
Normal file
153
src/mod_offline_riak.erl
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@ -0,0 +1,153 @@
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%%%-------------------------------------------------------------------
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%%% @author Evgeny Khramtsov <ekhramtsov@process-one.net>
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%%% @copyright (C) 2016, Evgeny Khramtsov
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%%% @doc
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%%%
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%%% @end
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%%% Created : 15 Apr 2016 by Evgeny Khramtsov <ekhramtsov@process-one.net>
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%%%-------------------------------------------------------------------
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-module(mod_offline_riak).
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-behaviour(mod_offline).
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-export([init/2, store_messages/5, pop_messages/2, remove_expired_messages/1,
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remove_old_messages/2, remove_user/2, read_message_headers/2,
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read_message/3, remove_message/3, read_all_messages/2,
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remove_all_messages/2, count_messages/2, import/2]).
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-include("jlib.hrl").
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-include("mod_offline.hrl").
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%%%===================================================================
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%%% API
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%%%===================================================================
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init(_Host, _Opts) ->
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ok.
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store_messages(Host, {User, _}, Msgs, Len, MaxOfflineMsgs) ->
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Count = if MaxOfflineMsgs =/= infinity ->
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Len + count_messages(User, Host);
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true -> 0
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end,
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if
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Count > MaxOfflineMsgs ->
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{atomic, discard};
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true ->
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try
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lists:foreach(
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fun(#offline_msg{us = US,
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timestamp = TS} = M) ->
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ok = ejabberd_riak:put(
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M, offline_msg_schema(),
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[{i, TS}, {'2i', [{<<"us">>, US}]}])
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end, Msgs),
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{atomic, ok}
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catch _:{badmatch, Err} ->
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{atomic, Err}
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end
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end.
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pop_messages(LUser, LServer) ->
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case ejabberd_riak:get_by_index(offline_msg, offline_msg_schema(),
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<<"us">>, {LUser, LServer}) of
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{ok, Rs} ->
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try
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lists:foreach(
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fun(#offline_msg{timestamp = T}) ->
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ok = ejabberd_riak:delete(offline_msg, T)
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end, Rs),
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{ok, lists:keysort(#offline_msg.timestamp, Rs)}
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catch _:{badmatch, Err} ->
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Err
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end;
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Err ->
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Err
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end.
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remove_expired_messages(_LServer) ->
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%% TODO
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{atomic, ok}.
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remove_old_messages(_Days, _LServer) ->
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%% TODO
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{atomic, ok}.
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remove_user(LUser, LServer) ->
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{atomic, ejabberd_riak:delete_by_index(offline_msg,
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<<"us">>, {LUser, LServer})}.
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read_message_headers(LUser, LServer) ->
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case ejabberd_riak:get_by_index(
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offline_msg, offline_msg_schema(),
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<<"us">>, {LUser, LServer}) of
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{ok, Rs} ->
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Hdrs = lists:map(
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fun(#offline_msg{from = From, to = To, packet = Pkt,
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timestamp = TS}) ->
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Seq = now_to_integer(TS),
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NewPkt = jlib:add_delay_info(
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Pkt, LServer, TS, <<"Offline Storage">>),
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{Seq, From, To, NewPkt}
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end, Rs),
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lists:keysort(1, Hdrs);
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_Err ->
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[]
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end.
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read_message(_LUser, _LServer, I) ->
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TS = integer_to_now(I),
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case ejabberd_riak:get(offline_msg, offline_msg_schema(), TS) of
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{ok, Msg} ->
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{ok, Msg};
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_ ->
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error
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end.
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remove_message(_LUser, _LServer, I) ->
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TS = integer_to_now(I),
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ejabberd_riak:delete(offline_msg, TS),
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ok.
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read_all_messages(LUser, LServer) ->
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case ejabberd_riak:get_by_index(
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offline_msg, offline_msg_schema(),
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<<"us">>, {LUser, LServer}) of
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{ok, Rs} ->
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lists:keysort(#offline_msg.timestamp, Rs);
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_Err ->
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[]
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end.
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remove_all_messages(LUser, LServer) ->
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Res = ejabberd_riak:delete_by_index(offline_msg,
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<<"us">>, {LUser, LServer}),
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{atomic, Res}.
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count_messages(LUser, LServer) ->
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case ejabberd_riak:count_by_index(
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offline_msg, <<"us">>, {LUser, LServer}) of
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{ok, Res} ->
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Res;
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_ ->
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0
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end.
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import(_LServer, #offline_msg{us = US, timestamp = TS} = M) ->
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ejabberd_riak:put(M, offline_msg_schema(),
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[{i, TS}, {'2i', [{<<"us">>, US}]}]).
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%%%===================================================================
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%%% Internal functions
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%%%===================================================================
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offline_msg_schema() ->
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{record_info(fields, offline_msg), #offline_msg{}}.
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now_to_integer({MS, S, US}) ->
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(MS * 1000000 + S) * 1000000 + US.
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integer_to_now(Int) ->
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Secs = Int div 1000000,
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USec = Int rem 1000000,
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MSec = Secs div 1000000,
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Sec = Secs rem 1000000,
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{MSec, Sec, USec}.
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252
src/mod_offline_sql.erl
Normal file
252
src/mod_offline_sql.erl
Normal file
@ -0,0 +1,252 @@
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%%%-------------------------------------------------------------------
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%%% @author Evgeny Khramtsov <ekhramtsov@process-one.net>
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%%% @copyright (C) 2016, Evgeny Khramtsov
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%%% @doc
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%%%
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%%% @end
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%%% Created : 15 Apr 2016 by Evgeny Khramtsov <ekhramtsov@process-one.net>
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%%%-------------------------------------------------------------------
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-module(mod_offline_sql).
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-compile([{parse_transform, ejabberd_sql_pt}]).
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-behaviour(mod_offline).
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-export([init/2, store_messages/5, pop_messages/2, remove_expired_messages/1,
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remove_old_messages/2, remove_user/2, read_message_headers/2,
|
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read_message/3, remove_message/3, read_all_messages/2,
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remove_all_messages/2, count_messages/2, import/1, import/2,
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export/1]).
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-include("jlib.hrl").
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-include("mod_offline.hrl").
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-include("logger.hrl").
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-include("ejabberd_sql_pt.hrl").
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%%%===================================================================
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%%% API
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%%%===================================================================
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init(_Host, _Opts) ->
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ok.
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store_messages(Host, {User, _Server}, Msgs, Len, MaxOfflineMsgs) ->
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Count = if MaxOfflineMsgs =/= infinity ->
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Len + count_messages(User, Host);
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true -> 0
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end,
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if Count > MaxOfflineMsgs -> {atomic, discard};
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true ->
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Query = lists:map(
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fun(M) ->
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Username =
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ejabberd_odbc:escape((M#offline_msg.to)#jid.luser),
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From = M#offline_msg.from,
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To = M#offline_msg.to,
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Packet =
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jlib:replace_from_to(From, To,
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M#offline_msg.packet),
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NewPacket =
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jlib:add_delay_info(Packet, Host,
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M#offline_msg.timestamp,
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<<"Offline Storage">>),
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XML =
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ejabberd_odbc:escape(fxml:element_to_binary(NewPacket)),
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odbc_queries:add_spool_sql(Username, XML)
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end,
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Msgs),
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odbc_queries:add_spool(Host, Query)
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end.
|
||||
|
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pop_messages(LUser, LServer) ->
|
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case odbc_queries:get_and_del_spool_msg_t(LServer, LUser) of
|
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{atomic, {selected, Rs}} ->
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{ok, lists:flatmap(
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fun({_, XML}) ->
|
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case xml_to_offline_msg(XML) of
|
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{ok, Msg} ->
|
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[Msg];
|
||||
_Err ->
|
||||
[]
|
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end
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end, Rs)};
|
||||
Err ->
|
||||
{error, Err}
|
||||
end.
|
||||
|
||||
remove_expired_messages(_LServer) ->
|
||||
%% TODO
|
||||
{atomic, ok}.
|
||||
|
||||
remove_old_messages(Days, LServer) ->
|
||||
case catch ejabberd_odbc:sql_query(
|
||||
LServer,
|
||||
[<<"DELETE FROM spool"
|
||||
" WHERE created_at < "
|
||||
"DATE_SUB(CURDATE(), INTERVAL ">>,
|
||||
integer_to_list(Days), <<" DAY);">>]) of
|
||||
{updated, N} ->
|
||||
?INFO_MSG("~p message(s) deleted from offline spool", [N]);
|
||||
_Error ->
|
||||
?ERROR_MSG("Cannot delete message in offline spool: ~p", [_Error])
|
||||
end,
|
||||
{atomic, ok}.
|
||||
|
||||
remove_user(LUser, LServer) ->
|
||||
odbc_queries:del_spool_msg(LServer, LUser).
|
||||
|
||||
read_message_headers(LUser, LServer) ->
|
||||
Username = ejabberd_odbc:escape(LUser),
|
||||
case catch ejabberd_odbc:sql_query(
|
||||
LServer, [<<"select xml, seq from spool where username ='">>,
|
||||
Username, <<"' order by seq;">>]) of
|
||||
{selected, [<<"xml">>, <<"seq">>], Rows} ->
|
||||
lists:flatmap(
|
||||
fun([XML, Seq]) ->
|
||||
case xml_to_offline_msg(XML) of
|
||||
{ok, #offline_msg{from = From,
|
||||
to = To,
|
||||
packet = El}} ->
|
||||
Seq0 = binary_to_integer(Seq),
|
||||
[{Seq0, From, To, El}];
|
||||
_ ->
|
||||
[]
|
||||
end
|
||||
end, Rows);
|
||||
_Err ->
|
||||
[]
|
||||
end.
|
||||
|
||||
read_message(LUser, LServer, Seq) ->
|
||||
Username = ejabberd_odbc:escape(LUser),
|
||||
SSeq = ejabberd_odbc:escape(integer_to_binary(Seq)),
|
||||
case ejabberd_odbc:sql_query(
|
||||
LServer,
|
||||
[<<"select xml from spool where username='">>, Username,
|
||||
<<"' and seq='">>, SSeq, <<"';">>]) of
|
||||
{selected, [<<"xml">>], [[RawXML]|_]} ->
|
||||
case xml_to_offline_msg(RawXML) of
|
||||
{ok, Msg} ->
|
||||
{ok, Msg};
|
||||
_ ->
|
||||
error
|
||||
end;
|
||||
_ ->
|
||||
error
|
||||
end.
|
||||
|
||||
remove_message(LUser, LServer, Seq) ->
|
||||
Username = ejabberd_odbc:escape(LUser),
|
||||
SSeq = ejabberd_odbc:escape(integer_to_binary(Seq)),
|
||||
ejabberd_odbc:sql_query(
|
||||
LServer,
|
||||
[<<"delete from spool where username='">>, Username,
|
||||
<<"' and seq='">>, SSeq, <<"';">>]),
|
||||
ok.
|
||||
|
||||
read_all_messages(LUser, LServer) ->
|
||||
case catch ejabberd_odbc:sql_query(
|
||||
LServer,
|
||||
?SQL("select @(xml)s from spool where "
|
||||
"username=%(LUser)s order by seq")) of
|
||||
{selected, Rs} ->
|
||||
lists:flatmap(
|
||||
fun({XML}) ->
|
||||
case xml_to_offline_msg(XML) of
|
||||
{ok, Msg} -> [Msg];
|
||||
_ -> []
|
||||
end
|
||||
end, Rs);
|
||||
_ ->
|
||||
[]
|
||||
end.
|
||||
|
||||
remove_all_messages(LUser, LServer) ->
|
||||
odbc_queries:del_spool_msg(LServer, LUser),
|
||||
{atomic, ok}.
|
||||
|
||||
count_messages(LUser, LServer) ->
|
||||
case catch ejabberd_odbc:sql_query(
|
||||
LServer,
|
||||
?SQL("select @(count(*))d from spool "
|
||||
"where username=%(LUser)s")) of
|
||||
{selected, [{Res}]} ->
|
||||
Res;
|
||||
_ -> 0
|
||||
end.
|
||||
|
||||
export(_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),
|
||||
Packet1 = jlib:replace_from_to(From, To, Packet),
|
||||
Packet2 = jlib:add_delay_info(Packet1, LServer, TimeStamp,
|
||||
<<"Offline Storage">>),
|
||||
XML = ejabberd_odbc:escape(fxml:element_to_binary(Packet2)),
|
||||
[[<<"delete from spool where username='">>, Username, <<"';">>],
|
||||
[<<"insert into spool(username, xml) values ('">>,
|
||||
Username, <<"', '">>, XML, <<"');">>]];
|
||||
(_Host, _R) ->
|
||||
[]
|
||||
end}].
|
||||
|
||||
import(LServer) ->
|
||||
[{<<"select username, xml from spool;">>,
|
||||
fun([LUser, XML]) ->
|
||||
El = #xmlel{} = fxml_stream:parse_element(XML),
|
||||
From = #jid{} = jid:from_string(
|
||||
fxml:get_attr_s(<<"from">>, El#xmlel.attrs)),
|
||||
To = #jid{} = jid:from_string(
|
||||
fxml:get_attr_s(<<"to">>, El#xmlel.attrs)),
|
||||
Stamp = fxml:get_path_s(El, [{elem, <<"delay">>},
|
||||
{attr, <<"stamp">>}]),
|
||||
TS = case jlib:datetime_string_to_timestamp(Stamp) of
|
||||
{_, _, _} = Now ->
|
||||
Now;
|
||||
undefined ->
|
||||
p1_time_compat:timestamp()
|
||||
end,
|
||||
Expire = mod_offline:find_x_expire(TS, El#xmlel.children),
|
||||
#offline_msg{us = {LUser, LServer},
|
||||
from = From, to = To,
|
||||
packet = El,
|
||||
timestamp = TS, expire = Expire}
|
||||
end}].
|
||||
|
||||
import(_, _) ->
|
||||
pass.
|
||||
|
||||
%%%===================================================================
|
||||
%%% Internal functions
|
||||
%%%===================================================================
|
||||
xml_to_offline_msg(XML) ->
|
||||
case fxml_stream:parse_element(XML) of
|
||||
#xmlel{} = El ->
|
||||
el_to_offline_msg(El);
|
||||
Err ->
|
||||
?ERROR_MSG("got ~p when parsing XML packet ~s",
|
||||
[Err, XML]),
|
||||
Err
|
||||
end.
|
||||
|
||||
el_to_offline_msg(El) ->
|
||||
To_s = fxml:get_tag_attr_s(<<"to">>, El),
|
||||
From_s = fxml:get_tag_attr_s(<<"from">>, El),
|
||||
To = jid:from_string(To_s),
|
||||
From = jid:from_string(From_s),
|
||||
if To == error ->
|
||||
?ERROR_MSG("failed to get 'to' JID from offline XML ~p", [El]),
|
||||
{error, bad_jid_to};
|
||||
From == error ->
|
||||
?ERROR_MSG("failed to get 'from' JID from offline XML ~p", [El]),
|
||||
{error, bad_jid_from};
|
||||
true ->
|
||||
{ok, #offline_msg{us = {To#jid.luser, To#jid.lserver},
|
||||
from = From,
|
||||
to = To,
|
||||
timestamp = undefined,
|
||||
expire = undefined,
|
||||
packet = El}}
|
||||
end.
|
||||
Loading…
Reference in New Issue
Block a user