mirror of
https://github.com/processone/ejabberd.git
synced 2024-12-22 17:28:25 +01:00
Improve type specs for ejabberd_s2s
Also minor code cleanup
This commit is contained in:
parent
43da45cf67
commit
f19b41fd19
@ -54,51 +54,38 @@
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-include("logger.hrl").
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-include("xmpp.hrl").
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-include("ejabberd_commands.hrl").
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-include_lib("public_key/include/public_key.hrl").
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-include_lib("stdlib/include/ms_transform.hrl").
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-include("ejabberd_stacktrace.hrl").
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-include("translate.hrl").
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-define(PKIXEXPLICIT, 'OTP-PUB-KEY').
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-define(PKIXIMPLICIT, 'OTP-PUB-KEY').
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-include("XmppAddr.hrl").
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-define(DEFAULT_MAX_S2S_CONNECTIONS_NUMBER, 1).
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-define(DEFAULT_MAX_S2S_CONNECTIONS_NUMBER_PER_NODE, 1).
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-define(S2S_OVERLOAD_BLOCK_PERIOD, 60).
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%% once a server is temporarly blocked, it stay blocked for 60 seconds
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-record(s2s, {fromto = {<<"">>, <<"">>} :: {binary(), binary()} | '_',
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pid = self() :: pid() | '_' | '$1'}).
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-record(s2s, {fromto :: {binary(), binary()},
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pid :: pid()}).
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-record(state, {}).
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-record(temporarily_blocked, {host = <<"">> :: binary(),
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timestamp :: integer()}).
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-record(temporarily_blocked, {host :: binary(),
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timestamp :: integer()}).
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-type temporarily_blocked() :: #temporarily_blocked{}.
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start_link() ->
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gen_server:start_link({local, ?MODULE}, ?MODULE, [],
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[]).
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gen_server:start_link({local, ?MODULE}, ?MODULE, [], []).
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clean_temporarily_blocked_table() ->
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mnesia:clear_table(temporarily_blocked).
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-spec list_temporarily_blocked_hosts() -> [temporarily_blocked()].
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list_temporarily_blocked_hosts() ->
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ets:tab2list(temporarily_blocked).
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-spec external_host_overloaded(binary()) -> {aborted, any()} | {atomic, ok}.
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external_host_overloaded(Host) ->
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?INFO_MSG("Disabling connections from ~s for ~p "
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"seconds",
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?INFO_MSG("Disabling s2s connections to ~s for ~p seconds",
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[Host, ?S2S_OVERLOAD_BLOCK_PERIOD]),
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mnesia:transaction(fun () ->
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Time = erlang:monotonic_time(),
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@ -107,21 +94,20 @@ external_host_overloaded(Host) ->
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end).
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-spec is_temporarly_blocked(binary()) -> boolean().
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is_temporarly_blocked(Host) ->
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case mnesia:dirty_read(temporarily_blocked, Host) of
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[] -> false;
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[#temporarily_blocked{timestamp = T} = Entry] ->
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Diff = erlang:monotonic_time() - T,
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case erlang:convert_time_unit(Diff, native, microsecond) of
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N when N > (?S2S_OVERLOAD_BLOCK_PERIOD) * 1000 * 1000 ->
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mnesia:dirty_delete_object(Entry), false;
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_ -> true
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end
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[] -> false;
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[#temporarily_blocked{timestamp = T} = Entry] ->
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Diff = erlang:monotonic_time() - T,
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case erlang:convert_time_unit(Diff, native, microsecond) of
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N when N > (?S2S_OVERLOAD_BLOCK_PERIOD) * 1000 * 1000 ->
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mnesia:dirty_delete_object(Entry), false;
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_ -> true
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end
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end.
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-spec remove_connection({binary(), binary()}, pid()) -> ok.
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remove_connection(FromTo, Pid) ->
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remove_connection({From, To} = FromTo, Pid) ->
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case mnesia:dirty_match_object(s2s, #s2s{fromto = FromTo, pid = Pid}) of
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[#s2s{pid = Pid}] ->
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F = fun() ->
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@ -130,25 +116,24 @@ remove_connection(FromTo, Pid) ->
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case mnesia:transaction(F) of
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{atomic, _} -> ok;
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{aborted, Reason} ->
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?ERROR_MSG("Failed to unregister s2s connection: "
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"Mnesia failure: ~p", [Reason])
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?ERROR_MSG("Failed to unregister s2s connection ~s -> ~s: "
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"Mnesia failure: ~p",
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[From, To, Reason])
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end;
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_ ->
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ok
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end.
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-spec have_connection({binary(), binary()}) -> boolean().
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have_connection(FromTo) ->
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case catch mnesia:dirty_read(s2s, FromTo) of
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[_] ->
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[_] ->
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true;
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_ ->
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false
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end.
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-spec get_connections_pids({binary(), binary()}) -> [pid()].
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get_connections_pids(FromTo) ->
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case catch mnesia:dirty_read(s2s, FromTo) of
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L when is_list(L) ->
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@ -158,8 +143,7 @@ get_connections_pids(FromTo) ->
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end.
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-spec try_register({binary(), binary()}) -> boolean().
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try_register(FromTo) ->
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try_register({From, To} = FromTo) ->
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MaxS2SConnectionsNumber = max_s2s_connections_number(FromTo),
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MaxS2SConnectionsNumberPerNode =
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max_s2s_connections_number_per_node(FromTo),
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@ -169,18 +153,21 @@ try_register(FromTo) ->
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MaxS2SConnectionsNumber,
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MaxS2SConnectionsNumberPerNode),
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if NeededConnections > 0 ->
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mnesia:write(#s2s{fromto = FromTo, pid = self()}),
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true;
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mnesia:write(#s2s{fromto = FromTo, pid = self()}),
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true;
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true -> false
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end
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end,
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case mnesia:transaction(F) of
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{atomic, Res} -> Res;
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_ -> false
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{atomic, Res} -> Res;
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{aborted, Reason} ->
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?ERROR_MSG("Failed to register s2s connection ~s -> ~s: "
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"Mnesia failure: ~p",
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[From, To, Reason]),
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false
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end.
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-spec dirty_get_connections() -> [{binary(), binary()}].
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dirty_get_connections() ->
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mnesia:dirty_all_keys(s2s).
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@ -276,10 +263,12 @@ init([]) ->
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{stop, Reason}
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end.
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handle_call(_Request, _From, State) ->
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{reply, ok, State}.
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handle_call(Request, From, State) ->
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?WARNING_MSG("Unexpected call from ~p: ~p", [From, Request]),
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{noreply, State}.
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handle_cast(_Msg, State) ->
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handle_cast(Msg, State) ->
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?WARNING_MSG("Unexpected cast: ~p", [Msg]),
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{noreply, State}.
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handle_info({mnesia_system_event, {mnesia_down, Node}}, State) ->
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@ -294,14 +283,15 @@ handle_info({route, Packet}, State) ->
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misc:format_exception(2, Class, Reason, StackTrace)])
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end,
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{noreply, State};
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handle_info(_Info, State) -> {noreply, State}.
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handle_info(Info, State) ->
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?WARNING_MSG("Unexpected info: ~p", [Info]),
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{noreply, State}.
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terminate(_Reason, _State) ->
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ejabberd_commands:unregister_commands(get_commands_spec()),
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lists:foreach(fun host_down/1, ejabberd_option:hosts()),
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ejabberd_hooks:delete(host_up, ?MODULE, host_up, 50),
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ejabberd_hooks:delete(host_down, ?MODULE, host_down, 60),
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ok.
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ejabberd_hooks:delete(host_down, ?MODULE, host_down, 60).
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code_change(_OldVsn, State, _Extra) ->
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{ok, State}.
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@ -309,10 +299,12 @@ code_change(_OldVsn, State, _Extra) ->
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%%--------------------------------------------------------------------
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%%% Internal functions
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%%--------------------------------------------------------------------
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-spec host_up(binary()) -> ok.
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host_up(Host) ->
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ejabberd_s2s_in:host_up(Host),
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ejabberd_s2s_out:host_up(Host).
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-spec host_down(binary()) -> ok.
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host_down(Host) ->
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lists:foreach(
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fun(#s2s{fromto = {From, _}, pid = Pid}) when node(Pid) == node() ->
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@ -334,12 +326,11 @@ clean_table_from_bad_node(Node) ->
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F = fun() ->
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Es = mnesia:select(
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s2s,
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[{#s2s{pid = '$1', _ = '_'},
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[{'==', {node, '$1'}, Node}],
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['$_']}]),
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lists:foreach(fun(E) ->
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mnesia:delete_object(E)
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end, Es)
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ets:fun2ms(
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fun(#s2s{pid = Pid} = E) when node(Pid) == Node ->
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E
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end)),
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lists:foreach(fun mnesia:delete_object/1, Es)
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end,
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mnesia:async_dirty(F).
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@ -350,12 +341,12 @@ route(Packet) ->
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To = xmpp:get_to(Packet),
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case start_connection(From, To) of
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{ok, Pid} when is_pid(Pid) ->
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?DEBUG("Sending to process ~p~n", [Pid]),
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#jid{lserver = MyServer} = From,
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?DEBUG("Sending to process ~p~n", [Pid]),
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#jid{lserver = MyServer} = From,
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ejabberd_hooks:run(s2s_send_packet, MyServer, [Packet]),
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ejabberd_s2s_out:route(Pid, Packet);
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{error, Reason} ->
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Lang = xmpp:get_lang(Packet),
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Lang = xmpp:get_lang(Packet),
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Err = case Reason of
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forbidden ->
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xmpp:err_forbidden(?T("Access denied by service policy"), Lang);
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@ -366,12 +357,12 @@ route(Packet) ->
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end.
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-spec start_connection(jid(), jid())
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-> {ok, pid()} | {error, forbidden | internal_server_error}.
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-> {ok, pid()} | {error, forbidden | internal_server_error}.
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start_connection(From, To) ->
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start_connection(From, To, []).
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-spec start_connection(jid(), jid(), [proplists:property()])
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-> {ok, pid()} | {error, forbidden | internal_server_error}.
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-> {ok, pid()} | {error, forbidden | internal_server_error}.
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start_connection(From, To, Opts) ->
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#jid{lserver = MyServer} = From,
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#jid{lserver = Server} = To,
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@ -382,11 +373,11 @@ start_connection(From, To, Opts) ->
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max_s2s_connections_number_per_node(FromTo),
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?DEBUG("Finding connection for ~p~n", [FromTo]),
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case mnesia:dirty_read(s2s, FromTo) of
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[] ->
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%% We try to establish all the connections if the host is not a
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%% service and if the s2s host is not blacklisted or
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%% is in whitelist:
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LServer = ejabberd_router:host_of_route(MyServer),
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[] ->
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%% We try to establish all the connections if the host is not a
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%% service and if the s2s host is not blacklisted or
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%% is in whitelist:
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LServer = ejabberd_router:host_of_route(MyServer),
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case allow_host(LServer, Server) of
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true ->
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NeededConnections = needed_connections_number(
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@ -400,20 +391,20 @@ start_connection(From, To, Opts) ->
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false ->
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{error, forbidden}
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end;
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L when is_list(L) ->
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NeededConnections = needed_connections_number(L,
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MaxS2SConnectionsNumber,
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MaxS2SConnectionsNumberPerNode),
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if NeededConnections > 0 ->
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%% We establish the missing connections for this pair.
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open_several_connections(NeededConnections, MyServer,
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Server, From, FromTo,
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MaxS2SConnectionsNumber,
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MaxS2SConnectionsNumberPerNode, Opts);
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true ->
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%% We choose a connexion from the pool of opened ones.
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{ok, choose_connection(From, L)}
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end
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L when is_list(L) ->
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NeededConnections = needed_connections_number(L,
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MaxS2SConnectionsNumber,
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MaxS2SConnectionsNumberPerNode),
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if NeededConnections > 0 ->
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%% We establish the missing connections for this pair.
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open_several_connections(NeededConnections, MyServer,
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Server, From, FromTo,
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MaxS2SConnectionsNumber,
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MaxS2SConnectionsNumberPerNode, Opts);
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true ->
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%% We choose a connexion from the pool of opened ones.
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{ok, choose_connection(From, L)}
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end
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end.
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-spec choose_connection(jid(), [#s2s{}]) -> pid().
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@ -423,8 +414,8 @@ choose_connection(From, Connections) ->
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-spec choose_pid(jid(), [pid()]) -> pid().
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choose_pid(From, Pids) ->
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Pids1 = case [P || P <- Pids, node(P) == node()] of
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[] -> Pids;
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Ps -> Ps
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[] -> Pids;
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Ps -> Ps
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end,
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Pid =
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lists:nth(erlang:phash(jid:remove_resource(From),
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@ -433,13 +424,17 @@ choose_pid(From, Pids) ->
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?DEBUG("Using ejabberd_s2s_out ~p~n", [Pid]),
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Pid.
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-spec open_several_connections(pos_integer(), binary(), binary(),
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jid(), {binary(), binary()},
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integer(), integer(), [proplists:property()]) ->
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{ok, pid()} | {error, internal_server_error}.
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open_several_connections(N, MyServer, Server, From,
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FromTo, MaxS2SConnectionsNumber,
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MaxS2SConnectionsNumberPerNode, Opts) ->
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case lists:flatmap(
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fun(_) ->
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new_connection(MyServer, Server,
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From, FromTo, MaxS2SConnectionsNumber,
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From, FromTo, MaxS2SConnectionsNumber,
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MaxS2SConnectionsNumberPerNode, Opts)
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end, lists:seq(1, N)) of
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[] ->
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@ -448,6 +443,8 @@ open_several_connections(N, MyServer, Server, From,
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{ok, choose_pid(From, PIDs)}
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end.
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-spec new_connection(binary(), binary(), jid(), {binary(), binary()},
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integer(), integer(), [proplists:property()]) -> [pid()].
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new_connection(MyServer, Server, From, FromTo,
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MaxS2SConnectionsNumber, MaxS2SConnectionsNumberPerNode, Opts) ->
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{ok, Pid} = ejabberd_s2s_out:start(MyServer, Server, Opts),
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@ -457,22 +454,23 @@ new_connection(MyServer, Server, From, FromTo,
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MaxS2SConnectionsNumber,
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MaxS2SConnectionsNumberPerNode),
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if NeededConnections > 0 ->
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mnesia:write(#s2s{fromto = FromTo, pid = Pid}),
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Pid;
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mnesia:write(#s2s{fromto = FromTo, pid = Pid}),
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Pid;
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true -> choose_connection(From, L)
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end
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end,
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TRes = mnesia:transaction(F),
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case TRes of
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{atomic, Pid1} ->
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{atomic, Pid1} ->
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if Pid1 == Pid ->
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ejabberd_s2s_out:connect(Pid);
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true ->
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ejabberd_s2s_out:stop(Pid)
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end,
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[Pid1];
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{aborted, Reason} ->
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?ERROR_MSG("Failed to register connection ~s -> ~s: ~p",
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{aborted, Reason} ->
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?ERROR_MSG("Failed to register s2s connection ~s -> ~s: "
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"Mnesia failure: ~p",
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[MyServer, Server, Reason]),
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ejabberd_s2s_out:stop(Pid),
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[]
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@ -529,11 +527,13 @@ incoming_s2s_number() ->
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outgoing_s2s_number() ->
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supervisor_count(ejabberd_s2s_out_sup).
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-spec supervisor_count(atom()) -> non_neg_integer().
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supervisor_count(Supervisor) ->
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case catch supervisor:which_children(Supervisor) of
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{'EXIT', _} -> 0;
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Result ->
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length(Result)
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try supervisor:count_children(Supervisor) of
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Props ->
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proplists:get_value(workers, Props, 0)
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catch _:_ ->
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0
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end.
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-spec stop_s2s_connections() -> ok.
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@ -557,10 +557,12 @@ update_tables() ->
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ok.
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%% Check if host is in blacklist or white list
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-spec allow_host(binary(), binary()) -> boolean().
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allow_host(MyServer, S2SHost) ->
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allow_host1(MyServer, S2SHost) andalso
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not is_temporarly_blocked(S2SHost).
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not is_temporarly_blocked(S2SHost).
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-spec allow_host1(binary(), binary()) -> boolean().
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allow_host1(MyHost, S2SHost) ->
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Rule = ejabberd_option:s2s_access(MyHost),
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JID = jid:make(S2SHost),
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@ -570,8 +572,7 @@ allow_host1(MyHost, S2SHost) ->
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case ejabberd_hooks:run_fold(s2s_allow_host, MyHost,
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allow, [MyHost, S2SHost]) of
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deny -> false;
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allow -> true;
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_ -> true
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allow -> true
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end
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end.
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@ -581,8 +582,8 @@ allow_host1(MyHost, S2SHost) ->
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%% Info = [{InfoName::atom(), InfoValue::any()}]
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get_info_s2s_connections(Type) ->
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ChildType = case Type of
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in -> ejabberd_s2s_in_sup;
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out -> ejabberd_s2s_out_sup
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in -> ejabberd_s2s_in_sup;
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out -> ejabberd_s2s_out_sup
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end,
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Connections = supervisor:which_children(ChildType),
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get_s2s_info(Connections, Type).
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@ -597,13 +598,12 @@ complete_s2s_info([Connection | T], Type, Result) ->
|
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complete_s2s_info(T, Type, [State | Result]).
|
||||
|
||||
-spec get_s2s_state(pid()) -> [{status, open | closed | error} | {s2s_pid, pid()}].
|
||||
|
||||
get_s2s_state(S2sPid) ->
|
||||
Infos = case p1_fsm:sync_send_all_state_event(S2sPid,
|
||||
get_state_infos)
|
||||
of
|
||||
{state_infos, Is} -> [{status, open} | Is];
|
||||
{noproc, _} -> [{status, closed}]; %% Connection closed
|
||||
{badrpc, _} -> [{status, error}]
|
||||
get_state_infos)
|
||||
of
|
||||
{state_infos, Is} -> [{status, open} | Is];
|
||||
{noproc, _} -> [{status, closed}]; %% Connection closed
|
||||
{badrpc, _} -> [{status, error}]
|
||||
end,
|
||||
[{s2s_pid, S2sPid} | Infos].
|
||||
|
Loading…
Reference in New Issue
Block a user