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ejabberd_c2s: Add XEP-0198 resumption hooks

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The new 'c2s_session_pending' and 'c2s_session_resumed' hooks are
invoked when a stream management session is pending and resumed,
respectively.
This commit is contained in:
Holger Weiss 2016-08-15 21:49:58 +02:00
parent e7217e6320
commit 4d19fb518f
1 changed files with 24 additions and 12 deletions
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36
src/ejabberd_c2s.erl
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@ -2495,13 +2495,19 @@ fsm_next_state(session_established, StateData) ->
?C2S_HIBERNATE_TIMEOUT};
fsm_next_state(wait_for_resume, #state{mgmt_timeout = 0} = StateData) ->
{stop, normal, StateData};
fsm_next_state(wait_for_resume, #state{mgmt_pending_since = undefined} =
StateData) ->
fsm_next_state(wait_for_resume, #state{mgmt_pending_since = undefined,
sid = SID, jid = JID, ip = IP,
conn = Conn, auth_module = AuthModule,
server = Host} = StateData) ->
?INFO_MSG("Waiting for resumption of stream for ~s",
[jid:to_string(StateData#state.jid)]),
[jid:to_string(JID)]),
Info = [{ip, IP}, {conn, Conn}, {auth_module, AuthModule}],
NewStateData = ejabberd_hooks:run_fold(c2s_session_pending, Host, StateData,
[SID, JID, Info]),
{next_state, wait_for_resume,
StateData#state{mgmt_state = pending, mgmt_pending_since = os:timestamp()},
StateData#state.mgmt_timeout};
NewStateData#state{mgmt_state = pending,
mgmt_pending_since = os:timestamp()},
NewStateData#state.mgmt_timeout};
fsm_next_state(wait_for_resume, StateData) ->
Diff = timer:now_diff(os:timestamp(), StateData#state.mgmt_pending_since),
Timeout = max(StateData#state.mgmt_timeout - Diff div 1000, 1),
@ -2790,8 +2796,8 @@ handle_resume(StateData, Attrs) ->
of
{{value, PrevID}, H} when is_integer(H), H >= 0 ->
case inherit_session_state(StateData, PrevID) of
{ok, InheritedState} ->
{ok, InheritedState, H};
{ok, InheritedState, Info} ->
{ok, InheritedState, Info, H};
{error, Err, InH} ->
{error, ?MGMT_ITEM_NOT_FOUND_H(Xmlns, InH), Err};
{error, Err} ->
@ -2810,7 +2816,7 @@ handle_resume(StateData, Attrs) ->
<<"Invalid XMLNS">>}
end,
case R of
{ok, ResumedState, NumHandled} ->
{ok, ResumedState, ResumedInfo, NumHandled} ->
NewState = check_h_attribute(ResumedState, NumHandled),
AttrXmlns = NewState#state.mgmt_xmlns,
AttrId = make_resume_id(NewState),
@ -2830,10 +2836,16 @@ handle_resume(StateData, Attrs) ->
#xmlel{name = <<"r">>,
attrs = [{<<"xmlns">>, AttrXmlns}],
children = []}),
NewStateData = csi_flush_queue(NewState),
NewState1 = csi_flush_queue(NewState),
NewState2 = ejabberd_hooks:run_fold(c2s_session_resumed,
StateData#state.server,
NewState1,
[NewState1#state.sid,
NewState1#state.jid,
ResumedInfo]),
?INFO_MSG("Resumed session for ~s",
[jid:to_string(NewStateData#state.jid)]),
{ok, NewStateData};
[jid:to_string(NewState2#state.jid)]),
{ok, NewState2};
{error, El, Msg} ->
send_element(StateData, El),
?INFO_MSG("Cannot resume session for ~s@~s: ~s",
@ -3083,7 +3095,7 @@ inherit_session_state(#state{user = U, server = S} = StateData, ResumeID) ->
mgmt_stanzas_in = OldStateData#state.mgmt_stanzas_in,
mgmt_stanzas_out = OldStateData#state.mgmt_stanzas_out,
mgmt_state = active,
csi_state = active}};
csi_state = active}, Info};
{error, Msg} ->
{error, Msg};
_ ->