763 lines
24 KiB
Erlang
763 lines
24 KiB
Erlang
%%%----------------------------------------------------------------------
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%%% File : mod_caps.erl
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%%% Author : Magnus Henoch <henoch@dtek.chalmers.se>
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%%% Purpose : Request and cache Entity Capabilities (XEP-0115)
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%%% Created : 7 Oct 2006 by Magnus Henoch <henoch@dtek.chalmers.se>
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%%%
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%%%
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%%% ejabberd, Copyright (C) 2002-2016 ProcessOne
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%%%
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%%% This program is free software; you can redistribute it and/or
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%%% modify it under the terms of the GNU General Public License as
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%%% published by the Free Software Foundation; either version 2 of the
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%%% License, or (at your option) any later version.
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%%%
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%%% This program is distributed in the hope that it will be useful,
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%%% but WITHOUT ANY WARRANTY; without even the implied warranty of
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%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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%%% General Public License for more details.
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%%%
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%%% You should have received a copy of the GNU General Public License along
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%%% with this program; if not, write to the Free Software Foundation, Inc.,
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%%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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%%%
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%%% 2009, improvements from ProcessOne to support correct PEP handling
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%%% through s2s, use less memory, and speedup global caps handling
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%%%----------------------------------------------------------------------
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-module(mod_caps).
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-author('henoch@dtek.chalmers.se').
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-protocol({xep, 115, '1.5'}).
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-behaviour(gen_server).
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-behaviour(gen_mod).
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-export([read_caps/1, caps_stream_features/2,
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disco_features/5, disco_identity/5, disco_info/5,
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get_features/2, export/1, import_info/0, import/5,
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import_start/2, import_stop/2]).
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%% gen_mod callbacks
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-export([start/2, start_link/2, stop/1]).
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%% gen_server callbacks
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-export([init/1, handle_info/2, handle_call/3,
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handle_cast/2, terminate/2, code_change/3]).
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-export([user_send_packet/4, user_receive_packet/5,
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c2s_presence_in/2, c2s_filter_packet/6,
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c2s_broadcast_recipients/6, mod_opt_type/1]).
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-include("ejabberd.hrl").
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-include("logger.hrl").
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-include("jlib.hrl").
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-define(PROCNAME, ejabberd_mod_caps).
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-define(BAD_HASH_LIFETIME, 600).
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-record(caps,
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{
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node = <<"">> :: binary(),
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version = <<"">> :: binary(),
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hash = <<"">> :: binary(),
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exts = [] :: [binary()]
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}).
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-type caps() :: #caps{}.
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-export_type([caps/0]).
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-record(caps_features,
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{
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node_pair = {<<"">>, <<"">>} :: {binary(), binary()},
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features = [] :: [binary()] | pos_integer()
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}).
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-record(state, {host = <<"">> :: binary()}).
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start_link(Host, Opts) ->
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Proc = gen_mod:get_module_proc(Host, ?PROCNAME),
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gen_server:start_link({local, Proc}, ?MODULE,
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[Host, Opts], []).
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start(Host, Opts) ->
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Proc = gen_mod:get_module_proc(Host, ?PROCNAME),
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ChildSpec = {Proc, {?MODULE, start_link, [Host, Opts]},
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transient, 1000, worker, [?MODULE]},
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supervisor:start_child(ejabberd_sup, ChildSpec).
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stop(Host) ->
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Proc = gen_mod:get_module_proc(Host, ?PROCNAME),
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gen_server:call(Proc, stop),
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supervisor:terminate_child(ejabberd_sup, Proc),
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supervisor:delete_child(ejabberd_sup, Proc).
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get_features(_Host, nothing) -> [];
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get_features(Host, #caps{node = Node, version = Version,
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exts = Exts}) ->
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SubNodes = [Version | Exts],
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lists:foldl(fun (SubNode, Acc) ->
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NodePair = {Node, SubNode},
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case cache_tab:lookup(caps_features, NodePair,
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caps_read_fun(Host, NodePair))
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of
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{ok, Features} when is_list(Features) ->
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Features ++ Acc;
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_ -> Acc
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end
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end,
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[], SubNodes).
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-spec read_caps([xmlel()]) -> nothing | caps().
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read_caps(Els) -> read_caps(Els, nothing).
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read_caps([#xmlel{name = <<"c">>, attrs = Attrs}
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| Tail],
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Result) ->
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case fxml:get_attr_s(<<"xmlns">>, Attrs) of
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?NS_CAPS ->
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Node = fxml:get_attr_s(<<"node">>, Attrs),
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Version = fxml:get_attr_s(<<"ver">>, Attrs),
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Hash = fxml:get_attr_s(<<"hash">>, Attrs),
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Exts = str:tokens(fxml:get_attr_s(<<"ext">>, Attrs),
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<<" ">>),
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read_caps(Tail,
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#caps{node = Node, hash = Hash, version = Version,
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exts = Exts});
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_ -> read_caps(Tail, Result)
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end;
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read_caps([#xmlel{name = <<"x">>, attrs = Attrs}
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| Tail],
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Result) ->
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case fxml:get_attr_s(<<"xmlns">>, Attrs) of
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?NS_MUC_USER -> nothing;
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_ -> read_caps(Tail, Result)
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end;
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read_caps([_ | Tail], Result) ->
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read_caps(Tail, Result);
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read_caps([], Result) -> Result.
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user_send_packet(#xmlel{name = <<"presence">>, attrs = Attrs,
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children = Els} = Pkt,
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_C2SState,
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#jid{luser = User, lserver = Server} = From,
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#jid{luser = User, lserver = Server,
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lresource = <<"">>}) ->
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Type = fxml:get_attr_s(<<"type">>, Attrs),
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if Type == <<"">>; Type == <<"available">> ->
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case read_caps(Els) of
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nothing -> ok;
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#caps{version = Version, exts = Exts} = Caps ->
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feature_request(Server, From, Caps, [Version | Exts])
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end;
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true -> ok
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end,
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Pkt;
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user_send_packet(Pkt, _C2SState, _From, _To) ->
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Pkt.
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user_receive_packet(#xmlel{name = <<"presence">>, attrs = Attrs,
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children = Els} = Pkt,
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_C2SState,
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#jid{lserver = Server},
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From, _To) ->
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Type = fxml:get_attr_s(<<"type">>, Attrs),
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IsRemote = not lists:member(From#jid.lserver, ?MYHOSTS),
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if IsRemote and
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((Type == <<"">>) or (Type == <<"available">>)) ->
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case read_caps(Els) of
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nothing -> ok;
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#caps{version = Version, exts = Exts} = Caps ->
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feature_request(Server, From, Caps, [Version | Exts])
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end;
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true -> ok
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end,
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Pkt;
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user_receive_packet(Pkt, _C2SState, _JID, _From, _To) ->
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Pkt.
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-spec caps_stream_features([xmlel()], binary()) -> [xmlel()].
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caps_stream_features(Acc, MyHost) ->
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case make_my_disco_hash(MyHost) of
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<<"">> -> Acc;
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Hash ->
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[#xmlel{name = <<"c">>,
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attrs =
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[{<<"xmlns">>, ?NS_CAPS}, {<<"hash">>, <<"sha-1">>},
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{<<"node">>, ?EJABBERD_URI}, {<<"ver">>, Hash}],
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children = []}
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| Acc]
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end.
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disco_features(Acc, From, To, Node, Lang) ->
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case is_valid_node(Node) of
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true ->
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ejabberd_hooks:run_fold(disco_local_features,
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To#jid.lserver, empty,
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[From, To, <<"">>, Lang]);
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false ->
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Acc
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end.
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disco_identity(Acc, From, To, Node, Lang) ->
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case is_valid_node(Node) of
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true ->
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ejabberd_hooks:run_fold(disco_local_identity,
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To#jid.lserver, [],
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[From, To, <<"">>, Lang]);
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false ->
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Acc
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end.
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disco_info(Acc, Host, Module, Node, Lang) ->
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case is_valid_node(Node) of
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true ->
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ejabberd_hooks:run_fold(disco_info, Host, [],
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[Host, Module, <<"">>, Lang]);
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false ->
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Acc
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end.
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c2s_presence_in(C2SState,
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{From, To, {_, _, Attrs, Els}}) ->
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Type = fxml:get_attr_s(<<"type">>, Attrs),
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Subscription = ejabberd_c2s:get_subscription(From,
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C2SState),
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Insert = ((Type == <<"">>) or (Type == <<"available">>))
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and ((Subscription == both) or (Subscription == to)),
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Delete = (Type == <<"unavailable">>) or
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(Type == <<"error">>),
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if Insert or Delete ->
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LFrom = jid:tolower(From),
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Rs = case ejabberd_c2s:get_aux_field(caps_resources,
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C2SState)
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of
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{ok, Rs1} -> Rs1;
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error -> gb_trees:empty()
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end,
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Caps = read_caps(Els),
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NewRs = case Caps of
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nothing when Insert == true -> Rs;
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_ when Insert == true ->
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case gb_trees:lookup(LFrom, Rs) of
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{value, Caps} -> Rs;
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none ->
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ejabberd_hooks:run(caps_add, To#jid.lserver,
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[From, To,
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get_features(To#jid.lserver, Caps)]),
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gb_trees:insert(LFrom, Caps, Rs);
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_ ->
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ejabberd_hooks:run(caps_update, To#jid.lserver,
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[From, To,
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get_features(To#jid.lserver, Caps)]),
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gb_trees:update(LFrom, Caps, Rs)
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end;
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_ -> gb_trees:delete_any(LFrom, Rs)
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end,
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ejabberd_c2s:set_aux_field(caps_resources, NewRs,
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C2SState);
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true -> C2SState
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end.
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c2s_filter_packet(InAcc, Host, C2SState, {pep_message, Feature}, To, _Packet) ->
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case ejabberd_c2s:get_aux_field(caps_resources, C2SState) of
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{ok, Rs} ->
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LTo = jid:tolower(To),
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case gb_trees:lookup(LTo, Rs) of
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{value, Caps} ->
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Drop = not lists:member(Feature, get_features(Host, Caps)),
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{stop, Drop};
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none ->
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{stop, true}
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end;
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_ -> InAcc
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end;
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c2s_filter_packet(Acc, _, _, _, _, _) -> Acc.
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c2s_broadcast_recipients(InAcc, Host, C2SState,
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{pep_message, Feature}, _From, _Packet) ->
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case ejabberd_c2s:get_aux_field(caps_resources,
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C2SState)
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of
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{ok, Rs} ->
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gb_trees_fold(fun (USR, Caps, Acc) ->
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case lists:member(Feature,
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get_features(Host, Caps))
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of
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true -> [USR | Acc];
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false -> Acc
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end
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end,
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InAcc, Rs);
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_ -> InAcc
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end;
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c2s_broadcast_recipients(Acc, _, _, _, _, _) -> Acc.
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init_db(mnesia, _Host) ->
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case catch mnesia:table_info(caps_features, storage_type) of
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{'EXIT', _} ->
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ok;
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disc_only_copies ->
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ok;
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_ ->
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mnesia:delete_table(caps_features)
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end,
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mnesia:create_table(caps_features,
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[{disc_only_copies, [node()]},
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{local_content, true},
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{attributes,
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record_info(fields, caps_features)}]),
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update_table(),
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mnesia:add_table_copy(caps_features, node(),
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disc_only_copies);
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init_db(_, _) ->
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ok.
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init([Host, Opts]) ->
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init_db(gen_mod:db_type(Host, Opts), Host),
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MaxSize = gen_mod:get_opt(cache_size, Opts,
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fun(I) when is_integer(I), I>0 -> I end,
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1000),
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LifeTime = gen_mod:get_opt(cache_life_time, Opts,
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fun(I) when is_integer(I), I>0 -> I end,
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timer:hours(24) div 1000),
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cache_tab:new(caps_features,
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[{max_size, MaxSize}, {life_time, LifeTime}]),
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ejabberd_hooks:add(c2s_presence_in, Host, ?MODULE,
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c2s_presence_in, 75),
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ejabberd_hooks:add(c2s_filter_packet, Host, ?MODULE,
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c2s_filter_packet, 75),
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ejabberd_hooks:add(c2s_broadcast_recipients, Host,
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?MODULE, c2s_broadcast_recipients, 75),
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ejabberd_hooks:add(user_send_packet, Host, ?MODULE,
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user_send_packet, 75),
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ejabberd_hooks:add(user_receive_packet, Host, ?MODULE,
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user_receive_packet, 75),
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ejabberd_hooks:add(c2s_stream_features, Host, ?MODULE,
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caps_stream_features, 75),
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ejabberd_hooks:add(s2s_stream_features, Host, ?MODULE,
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caps_stream_features, 75),
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ejabberd_hooks:add(disco_local_features, Host, ?MODULE,
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disco_features, 75),
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ejabberd_hooks:add(disco_local_identity, Host, ?MODULE,
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disco_identity, 75),
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ejabberd_hooks:add(disco_info, Host, ?MODULE,
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disco_info, 75),
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{ok, #state{host = Host}}.
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handle_call(stop, _From, State) ->
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{stop, normal, ok, State};
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handle_call(_Req, _From, State) ->
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{reply, {error, badarg}, State}.
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handle_cast(_Msg, State) -> {noreply, State}.
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handle_info(_Info, State) -> {noreply, State}.
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terminate(_Reason, State) ->
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Host = State#state.host,
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ejabberd_hooks:delete(c2s_presence_in, Host, ?MODULE,
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c2s_presence_in, 75),
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ejabberd_hooks:delete(c2s_filter_packet, Host, ?MODULE,
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c2s_filter_packet, 75),
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ejabberd_hooks:delete(c2s_broadcast_recipients, Host,
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?MODULE, c2s_broadcast_recipients, 75),
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ejabberd_hooks:delete(user_send_packet, Host, ?MODULE,
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user_send_packet, 75),
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ejabberd_hooks:delete(user_receive_packet, Host,
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?MODULE, user_receive_packet, 75),
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ejabberd_hooks:delete(c2s_stream_features, Host,
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?MODULE, caps_stream_features, 75),
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ejabberd_hooks:delete(s2s_stream_features, Host,
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?MODULE, caps_stream_features, 75),
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ejabberd_hooks:delete(disco_local_features, Host,
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?MODULE, disco_features, 75),
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ejabberd_hooks:delete(disco_local_identity, Host,
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?MODULE, disco_identity, 75),
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ejabberd_hooks:delete(disco_info, Host, ?MODULE,
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disco_info, 75),
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ok.
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code_change(_OldVsn, State, _Extra) -> {ok, State}.
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feature_request(Host, From, Caps,
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[SubNode | Tail] = SubNodes) ->
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Node = Caps#caps.node,
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NodePair = {Node, SubNode},
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case cache_tab:lookup(caps_features, NodePair,
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caps_read_fun(Host, NodePair))
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of
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{ok, Fs} when is_list(Fs) ->
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feature_request(Host, From, Caps, Tail);
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Other ->
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NeedRequest = case Other of
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{ok, TS} -> now_ts() >= TS + (?BAD_HASH_LIFETIME);
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_ -> true
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end,
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if NeedRequest ->
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IQ = #iq{type = get, xmlns = ?NS_DISCO_INFO,
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sub_el =
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[#xmlel{name = <<"query">>,
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attrs =
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[{<<"xmlns">>, ?NS_DISCO_INFO},
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{<<"node">>,
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<<Node/binary, "#",
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SubNode/binary>>}],
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children = []}]},
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cache_tab:insert(caps_features, NodePair, now_ts(),
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caps_write_fun(Host, NodePair, now_ts())),
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F = fun (IQReply) ->
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feature_response(IQReply, Host, From, Caps,
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SubNodes)
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end,
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ejabberd_local:route_iq(jid:make(<<"">>, Host,
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<<"">>),
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From, IQ, F);
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true -> feature_request(Host, From, Caps, Tail)
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end
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end;
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feature_request(_Host, _From, _Caps, []) -> ok.
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feature_response(#iq{type = result,
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sub_el = [#xmlel{children = Els}]},
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Host, From, Caps, [SubNode | SubNodes]) ->
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NodePair = {Caps#caps.node, SubNode},
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case check_hash(Caps, Els) of
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true ->
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Features = lists:flatmap(fun (#xmlel{name =
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<<"feature">>,
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attrs = FAttrs}) ->
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[fxml:get_attr_s(<<"var">>, FAttrs)];
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(_) -> []
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end,
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Els),
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cache_tab:insert(caps_features, NodePair,
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Features,
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caps_write_fun(Host, NodePair, Features));
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false -> ok
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end,
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feature_request(Host, From, Caps, SubNodes);
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feature_response(_IQResult, Host, From, Caps,
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[_SubNode | SubNodes]) ->
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feature_request(Host, From, Caps, SubNodes).
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caps_read_fun(Host, Node) ->
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LServer = jid:nameprep(Host),
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DBType = gen_mod:db_type(LServer, ?MODULE),
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caps_read_fun(LServer, Node, DBType).
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caps_read_fun(_LServer, Node, mnesia) ->
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fun () ->
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case mnesia:dirty_read({caps_features, Node}) of
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[#caps_features{features = Features}] -> {ok, Features};
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_ -> error
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end
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end;
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caps_read_fun(_LServer, Node, riak) ->
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fun() ->
|
|
case ejabberd_riak:get(caps_features, caps_features_schema(), Node) of
|
|
{ok, #caps_features{features = Features}} -> {ok, Features};
|
|
_ -> error
|
|
end
|
|
end;
|
|
caps_read_fun(LServer, {Node, SubNode}, odbc) ->
|
|
fun() ->
|
|
SNode = ejabberd_odbc:escape(Node),
|
|
SSubNode = ejabberd_odbc:escape(SubNode),
|
|
case ejabberd_odbc:sql_query(
|
|
LServer, [<<"select feature from caps_features where ">>,
|
|
<<"node='">>, SNode, <<"' and subnode='">>,
|
|
SSubNode, <<"';">>]) of
|
|
{selected, [<<"feature">>], [[H]|_] = Fs} ->
|
|
case catch jlib:binary_to_integer(H) of
|
|
Int when is_integer(Int), Int>=0 ->
|
|
{ok, Int};
|
|
_ ->
|
|
{ok, lists:flatten(Fs)}
|
|
end;
|
|
_ ->
|
|
error
|
|
end
|
|
end.
|
|
|
|
caps_write_fun(Host, Node, Features) ->
|
|
LServer = jid:nameprep(Host),
|
|
DBType = gen_mod:db_type(LServer, ?MODULE),
|
|
caps_write_fun(LServer, Node, Features, DBType).
|
|
|
|
caps_write_fun(_LServer, Node, Features, mnesia) ->
|
|
fun () ->
|
|
mnesia:dirty_write(#caps_features{node_pair = Node,
|
|
features = Features})
|
|
end;
|
|
caps_write_fun(_LServer, Node, Features, riak) ->
|
|
fun () ->
|
|
ejabberd_riak:put(#caps_features{node_pair = Node,
|
|
features = Features},
|
|
caps_features_schema())
|
|
end;
|
|
caps_write_fun(LServer, NodePair, Features, odbc) ->
|
|
fun () ->
|
|
ejabberd_odbc:sql_transaction(
|
|
LServer,
|
|
sql_write_features_t(NodePair, Features))
|
|
end.
|
|
|
|
make_my_disco_hash(Host) ->
|
|
JID = jid:make(<<"">>, Host, <<"">>),
|
|
case {ejabberd_hooks:run_fold(disco_local_features,
|
|
Host, empty, [JID, JID, <<"">>, <<"">>]),
|
|
ejabberd_hooks:run_fold(disco_local_identity, Host, [],
|
|
[JID, JID, <<"">>, <<"">>]),
|
|
ejabberd_hooks:run_fold(disco_info, Host, [],
|
|
[Host, undefined, <<"">>, <<"">>])}
|
|
of
|
|
{{result, Features}, Identities, Info} ->
|
|
Feats = lists:map(fun ({{Feat, _Host}}) ->
|
|
#xmlel{name = <<"feature">>,
|
|
attrs = [{<<"var">>, Feat}],
|
|
children = []};
|
|
(Feat) ->
|
|
#xmlel{name = <<"feature">>,
|
|
attrs = [{<<"var">>, Feat}],
|
|
children = []}
|
|
end,
|
|
Features),
|
|
make_disco_hash(Identities ++ Info ++ Feats, sha1);
|
|
_Err -> <<"">>
|
|
end.
|
|
|
|
make_disco_hash(DiscoEls, Algo) ->
|
|
Concat = list_to_binary([concat_identities(DiscoEls),
|
|
concat_features(DiscoEls), concat_info(DiscoEls)]),
|
|
jlib:encode_base64(case Algo of
|
|
md5 -> erlang:md5(Concat);
|
|
sha1 -> p1_sha:sha1(Concat);
|
|
sha224 -> p1_sha:sha224(Concat);
|
|
sha256 -> p1_sha:sha256(Concat);
|
|
sha384 -> p1_sha:sha384(Concat);
|
|
sha512 -> p1_sha:sha512(Concat)
|
|
end).
|
|
|
|
check_hash(Caps, Els) ->
|
|
case Caps#caps.hash of
|
|
<<"md5">> ->
|
|
Caps#caps.version == make_disco_hash(Els, md5);
|
|
<<"sha-1">> ->
|
|
Caps#caps.version == make_disco_hash(Els, sha1);
|
|
<<"sha-224">> ->
|
|
Caps#caps.version == make_disco_hash(Els, sha224);
|
|
<<"sha-256">> ->
|
|
Caps#caps.version == make_disco_hash(Els, sha256);
|
|
<<"sha-384">> ->
|
|
Caps#caps.version == make_disco_hash(Els, sha384);
|
|
<<"sha-512">> ->
|
|
Caps#caps.version == make_disco_hash(Els, sha512);
|
|
_ -> true
|
|
end.
|
|
|
|
concat_features(Els) ->
|
|
lists:usort(lists:flatmap(fun (#xmlel{name =
|
|
<<"feature">>,
|
|
attrs = Attrs}) ->
|
|
[[fxml:get_attr_s(<<"var">>, Attrs), $<]];
|
|
(_) -> []
|
|
end,
|
|
Els)).
|
|
|
|
concat_identities(Els) ->
|
|
lists:sort(lists:flatmap(fun (#xmlel{name =
|
|
<<"identity">>,
|
|
attrs = Attrs}) ->
|
|
[[fxml:get_attr_s(<<"category">>, Attrs),
|
|
$/, fxml:get_attr_s(<<"type">>, Attrs),
|
|
$/,
|
|
fxml:get_attr_s(<<"xml:lang">>, Attrs),
|
|
$/, fxml:get_attr_s(<<"name">>, Attrs),
|
|
$<]];
|
|
(_) -> []
|
|
end,
|
|
Els)).
|
|
|
|
concat_info(Els) ->
|
|
lists:sort(lists:flatmap(fun (#xmlel{name = <<"x">>,
|
|
attrs = Attrs, children = Fields}) ->
|
|
case {fxml:get_attr_s(<<"xmlns">>, Attrs),
|
|
fxml:get_attr_s(<<"type">>, Attrs)}
|
|
of
|
|
{?NS_XDATA, <<"result">>} ->
|
|
[concat_xdata_fields(Fields)];
|
|
_ -> []
|
|
end;
|
|
(_) -> []
|
|
end,
|
|
Els)).
|
|
|
|
concat_xdata_fields(Fields) ->
|
|
[Form, Res] = lists:foldl(fun (#xmlel{name =
|
|
<<"field">>,
|
|
attrs = Attrs, children = Els} =
|
|
El,
|
|
[FormType, VarFields] = Acc) ->
|
|
case fxml:get_attr_s(<<"var">>, Attrs) of
|
|
<<"">> -> Acc;
|
|
<<"FORM_TYPE">> ->
|
|
[fxml:get_subtag_cdata(El,
|
|
<<"value">>),
|
|
VarFields];
|
|
Var ->
|
|
[FormType,
|
|
[[[Var, $<],
|
|
lists:sort(lists:flatmap(fun
|
|
(#xmlel{name
|
|
=
|
|
<<"value">>,
|
|
children
|
|
=
|
|
VEls}) ->
|
|
[[fxml:get_cdata(VEls),
|
|
$<]];
|
|
(_) ->
|
|
[]
|
|
end,
|
|
Els))]
|
|
| VarFields]]
|
|
end;
|
|
(_, Acc) -> Acc
|
|
end,
|
|
[<<"">>, []], Fields),
|
|
[Form, $<, lists:sort(Res)].
|
|
|
|
gb_trees_fold(F, Acc, Tree) ->
|
|
Iter = gb_trees:iterator(Tree),
|
|
gb_trees_fold_iter(F, Acc, Iter).
|
|
|
|
gb_trees_fold_iter(F, Acc, Iter) ->
|
|
case gb_trees:next(Iter) of
|
|
{Key, Val, NewIter} ->
|
|
NewAcc = F(Key, Val, Acc),
|
|
gb_trees_fold_iter(F, NewAcc, NewIter);
|
|
_ -> Acc
|
|
end.
|
|
|
|
now_ts() ->
|
|
p1_time_compat:system_time(seconds).
|
|
|
|
is_valid_node(Node) ->
|
|
case str:tokens(Node, <<"#">>) of
|
|
[?EJABBERD_URI|_] ->
|
|
true;
|
|
_ ->
|
|
false
|
|
end.
|
|
|
|
update_table() ->
|
|
Fields = record_info(fields, caps_features),
|
|
case mnesia:table_info(caps_features, attributes) of
|
|
Fields ->
|
|
ejabberd_config:convert_table_to_binary(
|
|
caps_features, Fields, set,
|
|
fun(#caps_features{node_pair = {N, _}}) -> N end,
|
|
fun(#caps_features{node_pair = {N, P},
|
|
features = Fs} = R) ->
|
|
NewFs = if is_integer(Fs) ->
|
|
Fs;
|
|
true ->
|
|
[iolist_to_binary(F) || F <- Fs]
|
|
end,
|
|
R#caps_features{node_pair = {iolist_to_binary(N),
|
|
iolist_to_binary(P)},
|
|
features = NewFs}
|
|
end);
|
|
_ ->
|
|
?INFO_MSG("Recreating caps_features table", []),
|
|
mnesia:transform_table(caps_features, ignore, Fields)
|
|
end.
|
|
|
|
sql_write_features_t({Node, SubNode}, Features) ->
|
|
SNode = ejabberd_odbc:escape(Node),
|
|
SSubNode = ejabberd_odbc:escape(SubNode),
|
|
NewFeatures = if is_integer(Features) ->
|
|
[jlib:integer_to_binary(Features)];
|
|
true ->
|
|
Features
|
|
end,
|
|
[[<<"delete from caps_features where node='">>,
|
|
SNode, <<"' and subnode='">>, SSubNode, <<"';">>]|
|
|
[[<<"insert into caps_features(node, subnode, feature) ">>,
|
|
<<"values ('">>, SNode, <<"', '">>, SSubNode, <<"', '">>,
|
|
ejabberd_odbc:escape(F), <<"');">>] || F <- NewFeatures]].
|
|
|
|
caps_features_schema() ->
|
|
{record_info(fields, caps_features), #caps_features{}}.
|
|
|
|
export(_Server) ->
|
|
[{caps_features,
|
|
fun(_Host, #caps_features{node_pair = NodePair,
|
|
features = Features}) ->
|
|
sql_write_features_t(NodePair, Features);
|
|
(_Host, _R) ->
|
|
[]
|
|
end}].
|
|
|
|
import_info() ->
|
|
[{<<"caps_features">>, 4}].
|
|
|
|
import_start(LServer, DBType) ->
|
|
ets:new(caps_features_tmp, [private, named_table, bag]),
|
|
init_db(DBType, LServer),
|
|
ok.
|
|
|
|
import(_LServer, {odbc, _}, _DBType, <<"caps_features">>,
|
|
[Node, SubNode, Feature, _TimeStamp]) ->
|
|
Feature1 = case catch jlib:binary_to_integer(Feature) of
|
|
I when is_integer(I), I>0 -> I;
|
|
_ -> Feature
|
|
end,
|
|
ets:insert(caps_features_tmp, {{Node, SubNode}, Feature1}),
|
|
ok.
|
|
|
|
import_stop(LServer, DBType) ->
|
|
import_next(LServer, DBType, ets:first(caps_features_tmp)),
|
|
ets:delete(caps_features_tmp),
|
|
ok.
|
|
|
|
import_next(_LServer, _DBType, '$end_of_table') ->
|
|
ok;
|
|
import_next(LServer, DBType, NodePair) ->
|
|
Features = [F || {_, F} <- ets:lookup(caps_features_tmp, NodePair)],
|
|
case Features of
|
|
[I] when is_integer(I), DBType == mnesia ->
|
|
mnesia:dirty_write(
|
|
#caps_features{node_pair = NodePair, features = I});
|
|
[I] when is_integer(I), DBType == riak ->
|
|
ejabberd_riak:put(
|
|
#caps_features{node_pair = NodePair, features = I},
|
|
caps_features_schema());
|
|
_ when DBType == mnesia ->
|
|
mnesia:dirty_write(
|
|
#caps_features{node_pair = NodePair, features = Features});
|
|
_ when DBType == riak ->
|
|
ejabberd_riak:put(
|
|
#caps_features{node_pair = NodePair, features = Features},
|
|
caps_features_schema());
|
|
_ when DBType == odbc ->
|
|
ok
|
|
end,
|
|
import_next(LServer, DBType, ets:next(caps_features_tmp, NodePair)).
|
|
|
|
mod_opt_type(cache_life_time) ->
|
|
fun (I) when is_integer(I), I > 0 -> I end;
|
|
mod_opt_type(cache_size) ->
|
|
fun (I) when is_integer(I), I > 0 -> I end;
|
|
mod_opt_type(db_type) -> fun gen_mod:v_db/1;
|
|
mod_opt_type(_) ->
|
|
[cache_life_time, cache_size, db_type].
|