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Commit Graph

294 Commits

Author SHA1 Message Date
Holger Weiss
2d4c39cd54 XEP-0198: Create shorter resume IDs
Omit the user and server name from the 'previd' value.
2014-08-15 10:56:59 +02:00
Holger Weiss
848e1497d1 XEP-0198: Gracefully handle broken 'previd'
Produce a proper error message instead of crashing when the 'previd'
value of a <resume/> request has an unexpected format.
2014-08-15 01:54:41 +02:00
Holger Weiss
2daf95e93f XEP-0198: Gracefully handle wrong credentials
Produce a proper error message instead of crashing when the JID encoded
in the 'previd' value of a <resume/> request is different from the
authenticated JID.
2014-08-15 01:53:47 +02:00
Evgeniy Khramtsov
3d3a4f7543 Fix events broadcasting via C2S 2014-07-22 19:42:49 +04:00
Holger Weiss
0cb9ea3643 XEP-0198: Cosmetic change: Reuse event handler
On stanza queue overflow, pass a message to self() using the exclamation
mark operator instead of send_all_state_event/2.  This allows for
reusing the existing handler for 'kick' events.
2014-05-28 11:24:38 +02:00
Holger Weiss
99ca8281fa XEP-0198: Terminate session on queue overflow
On queue overflow, terminate the c2s session instead of just dropping
items from the queue.  This makes sure all stanzas are either delivered
or bounced.
2014-05-27 22:56:33 +02:00
Evgeny Khramtsov
3a27b1dd0c Merge pull request #226 from weiss/simplify-state-change
XEP-0198: Cosmetic change: Simplify state change
2014-05-27 23:30:30 +04:00
Holger Weiss
50a4c5a6ab XEP-0198: Cosmetic change: Simplify state change
When the FSM goes into the 'wait_for_resume' state, let fsm_next_state/2
take care of updating #state.mgmt_state and of writing the log line.
This doesn't change the behavior, but simplifies the code.
2014-05-27 21:14:49 +02:00
Holger Weiss
ed0c89f876 Let ejabberd_c2s always use fsm_next_state/2
Make sure any logic implemented in ejabberd_c2s:fsm_next_state/2 is
always applied.
2014-05-27 21:07:53 +02:00
Evgeny Khramtsov
702cddd4ff Merge pull request #220 from weiss/handle-send-failure
XEP-0198: Don't exit on socket send failure
2014-05-27 15:44:04 +04:00
Evgeny Khramtsov
4d1332c30f Merge pull request #222 from weiss/keep-session-on-failed-resume
XEP-0198: Don't drop session on failed resume
2014-05-27 15:38:26 +04:00
Evgeny Khramtsov
402fb9665d Merge pull request #221 from weiss/omit-redundant-guard
XEP-0198: Cosmetic change: Omit redundant guard
2014-05-27 15:34:34 +04:00
Evgeny Khramtsov
b2e84405c1 Merge pull request #218 from weiss/omit-iq-xmlns
Omit XML namespace declaration for <iq/> stanzas
2014-05-27 15:32:02 +04:00
Holger Weiss
59f6efeaf7 XEP-0198: Don't drop session on failed resume
The 'previd' value provided by the client during a session resume
request includes the client's JID and ejabberd's session ID.  If there
is a session for the requested JID but with a different session ID,
resumption should fail, but that session shouldn't be closed.  This
commit makes sure the latter won't happen.

In practice, this will only make a difference in odd corner cases.
2014-05-23 23:38:04 +02:00
Holger Weiss
737b0ae5dc XEP-0198: Cosmetic change: Omit redundant guard
The stream management state is never 'pending' when the c2s FSM is in
the 'session_established' state.
2014-05-23 20:46:17 +02:00
Holger Weiss
ab9667f917 XEP-0198: Don't exit on socket send failure
If stream management is enabled, don't exit the c2s process when
ejabberd_socket:send/2 fails, but close the socket instead.  This gives
the client a chance to resume the session.

Thanks go to Matthias Rieber for reporting the issue, providing detailed
logs, and testing the fix.
2014-05-23 11:38:54 +02:00
Badlop
735bd95659 Merge branch 'check-packet-type' of git://github.com/weiss/ejabberd into weiss-check-packet-type
Conflicts:
	src/ejabberd_c2s.erl
2014-05-21 18:45:28 +02:00
Holger Weiss
6b996061a2 Omit XML namespace declaration for <iq/> stanzas
Only the child elements of <iq/> stanzas are qualified by the namespaces
in question, not the <iq/> stanzas themselves.

This change just clarifies the code.  It doesn't alter the behaviour, as
those <iq/> stanzas are handed over to jlib:iq_to_xml/1, and that
function ignores the 'xmlns' attribute anyway.
2014-05-21 00:07:57 +02:00
Radosław Szymczyszyn
5726636053 Fix check_from/2 formatting 2014-05-20 12:31:28 +01:00
Radosław Szymczyszyn
b7a542e074 Sanitize copy-pasted get_statustag/1 2014-05-20 12:28:14 +01:00
Radosław Szymczyszyn
9c37450fe4 Fix formatting 2014-05-20 12:26:33 +01:00
Radosław Szymczyszyn
c39ce133de Build proceed/compressed elements in a sane way 2014-05-20 11:52:02 +01:00
Holger Weiss
6e8dd5bdff Don't miss incoming presence updates 2014-05-14 01:04:38 +02:00
Holger Weiss
f6da708b02 XEP-0198: Check whether routed packets are stanzas
Only stanzas are subject to stream management, so when XEP-0198 support
is enabled, we must distinguish them from non-stanza elements.  This
commit adds a send_packet/2 function that can be used in place of
send_stanza/2 or send_element/2 whenever a packet is delivered that
might or might not be a stanza.
2014-05-12 19:20:25 +02:00
Holger Weiss
9121ca14de Rename disconnect_user/2 command
The mod_admin_extra module provides a kick_session/4 command.  Rename
the disconnect_user/2 command to kick_user/2 for consistency.
2014-05-12 12:44:40 +02:00
Holger Weiss
6d5bfcfe9b XEP-0198: Improve handling of too large 'h' values
If the client says that it handled more stanzas than we sent (due to a
bug in the client's or in our code), increase our outgoing stanza count
accordingly.  There's no point in sticking to the old value even if it
was correct, as the client surely won't fix its count during the current
session.
2014-05-09 18:28:14 +02:00
Holger Weiss
15369ff9d7 XEP-0198: Reject <resume/> with negative 'h' value
Make sure the 'h' attribute sent with a <resume/> request is
nonnegative, as mandated by XEP-0198.

We already have this check for <a/> elements.
2014-05-09 18:01:31 +02:00
Holger Weiss
a60fda7df4 XEP-0198: Don't warn on invalid ACK elements
Do not log a warning (but only a debug message) if the client sends an
invalid </a> packet.  Some clients do that occasionally, and there's
nothing server admininistrators could do about that.
2014-05-09 17:54:12 +02:00
Holger Weiss
d343447cc9 Merge remote-tracking branch 'processone/master' into xep-0198
Conflicts:
	doc/guide.tex
	src/ejabberd_c2s.erl
2014-05-06 21:41:29 +02:00
Holger Weiss
8b1f92575a XEP-0198: Use "mgmt_" prefix for all #state fields
Prefix all ejabberd_c2s #state fields that are used for stream
management with "mgmt_".
2014-05-06 07:27:10 +02:00
Holger Weiss
3b3f3b9131 XEP-0198: Don't log protocol issues
There are corner cases where certain clients acknowledge more stanzas
than they received.  Nothing really bad will happen in those cases, and
server administrators can't do anything about such issues anyway.
2014-05-05 01:11:14 +02:00
Holger Weiss
32abcbca6c XEP-0198: Accept stream elements in pending state
Due to timing issues, ejabberd_c2s might receive stream elements from
the client while the session is waiting for stream resumption.  Those
elements are now accepted.
2014-05-05 00:02:55 +02:00
Holger Weiss
a0917a8e9b XEP-0198: Log message when waiting for resumption
Log an informational message when a session goes into the pending state
(waiting for resumption) after the connection was lost.  Administrators
may well be interested in this state change when looking into issues.
2014-05-04 23:08:42 +02:00
Evgeny Khramtsov
c545b3de6d Merge pull request #178 from hamano/devel
undefined ejabberd_socket:get_conn_type/1
2014-04-30 21:49:54 +04:00
Holger Weiss
ebbceab93f Translate disconnect_user/2 string sent to client 2014-04-29 11:56:28 +02:00
Holger Weiss
bb2c8b59f8 Avoid #state.lang type errors in corner cases
If #state.lang is used before being initialized to some binary string,
the translation code would crash.
2014-04-29 11:41:24 +02:00
Holger Weiss
a21d2298af XEP-0198: Turn some warnings into info messages
Don't log warnings on events that will happen during normal operation.
2014-04-28 01:01:30 +02:00
HAMANO Tsukasa
219f9276d1 undefined ejabberd_socket:get_conn_type/1 2014-04-24 12:42:22 +09:00
Alexey Shchepin
f93758a3cd Merge pull request #160 from runcom/protocol_options
Add option to specify openssl options
2014-04-15 19:01:21 +04:00
badlop
285c4c17cf Merge pull request #146 from jamielinux/master
Update FSF address
2014-04-11 13:35:46 +02:00
Antonio Murdaca
fbf71f86f3 Add option to specify openssl options 2014-04-08 18:46:52 +02:00
Holger Weiss
c114eb3736 XEP-0198: Don't bounce/resend forwarded messages
On connection timeout, drop any messages that were forwarded by some
encapsulating protocol, such as XEP-0280 carbon copies or XEP-0313
archive messages.  Bouncing or resending them could easily lead to
unexpected results.
2014-04-07 21:21:11 +02:00
Badlop
ac0e199d36 Provide meaningful text to user when admin kicks session (EJAB-1455) 2014-03-26 16:01:37 +01:00
Holger Weiss
a97c716352 XEP-0198: Bounce unacked stanzas by default
If the new "resend_on_timeout" option is set to false (which it is by
default), bounce any unacknowledged stanzas instead of re-routing them.
2014-03-25 23:23:38 +01:00
Holger Weiss
2da6933bb7 Remove "fun" element from c2s #state
Memory consumption wise, local "fun" references are quite expensive.
2014-03-22 20:25:43 +01:00
Holger Weiss
e360c56f87 Support XEP-0198 session resumption
Implement the optional session resumption feature described in XEP-0198.
A client that supports this feature may now resume the previous session
(within a configurable number of seconds) if the connection was lost.
During resumption, ejabberd will retransmit any stanzas that hadn't been
acknowledged by the client.
2014-03-19 00:51:33 +01:00
Holger Weiss
88a200e100 Remove some commented out code
The code that had been commented out at some earlier point in time would
now break XEP-0198.
2014-03-16 00:12:47 +01:00
Badlop
633d47f784 Update copyright dates to 2014 (EJAB-1679) 2014-03-13 12:30:57 +01:00
Holger Weiss
7d594086c3 Add initial XEP-0198 support (EJAB-532)
Implement partial support for XEP-0198: Stream Management.  After
successful negotiation of this feature, the server requests an ACK for
each stanza transmitted to the client and responds to ACK requests
issued by the client.  On session termination, the server re-routes any
unacknowledged stanzas.  The length of the pending queue can be limited
by setting the "max_ack_queue" option to some integer value (default:
500).  XEP-0198 support can be disabled entirely by setting the
"stream_management" option to false (default: true).

So far, stream management is implemented only for c2s connections, and
the optional stream resumption feature also described in XEP-0198 is not
(yet) supported.

This addition was originally based on a patch provided by Magnus Henoch
and updated by Grzegorz Grasza.  Their code implements an early draft of
XEP-0198 for some previous version of ejabberd.  It has since been
rewritten almost entirely.
2014-03-12 23:34:14 +01:00
Jamie Nguyen
8538997d61 Update FSF address 2014-02-22 10:27:40 +00:00