Mercurial > prosody-modules

annotate mod_smacks/README.markdown @ 4264:84bdf7e01744

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
mod_adhoc_oauth2_client: Add stub README
author Kim Alvefur <zash@zash.se>
date Sun, 22 Nov 2020 01:54:06 +0100
parents 0957ba6aeb99
children 0bcbff950f14
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1803
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
1 ---
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
2 labels:
2154
ada71b81425a mod_smacks/README: Too buggy for a "Beta" label
Kim Alvefur <zash@zash.se>
parents: 2063
diff changeset
3 - 'Stage-Alpha'
1803
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
4 summary: 'XEP-0198: Reliability and fast reconnects for XMPP'
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
5 ...
1782
29f3d6b7ad16 Import wiki pages
Kim Alvefur <zash@zash.se>
parents:
diff changeset
6
1803
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
7 Introduction
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
8 ============
1782
29f3d6b7ad16 Import wiki pages
Kim Alvefur <zash@zash.se>
parents:
diff changeset
9
1803
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
10 By default XMPP is as reliable as your network is. Unfortunately in some
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
11 cases that is not very reliable - in some network conditions disconnects
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
12 can be frequent and message loss can occur.
1782
29f3d6b7ad16 Import wiki pages
Kim Alvefur <zash@zash.se>
parents:
diff changeset
13
1803
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
14 To overcome this, XMPP has an optional extension (XEP-0198: Stream
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
15 Management) which, when supported by both the client and server, can
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
16 allow a client to resume a disconnected session, and prevent message
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
17 loss.
1782
29f3d6b7ad16 Import wiki pages
Kim Alvefur <zash@zash.se>
parents:
diff changeset
18
1803
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
19 Details
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
20 =======
1782
29f3d6b7ad16 Import wiki pages
Kim Alvefur <zash@zash.se>
parents:
diff changeset
21
1803
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
22 When using XEP-0198 both the client and the server keep a queue of the
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
23 most recently sent stanzas - this is cleared when the other end
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
24 acknowledges they have received the stanzas. If the client disconnects,
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
25 instead of marking the user offline the server pretends the client is
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
26 still online for a short (configurable) period of time. If the client
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
27 reconnects within this period, any stanzas in the queue that the client
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
28 did not receive are re-sent.
1782
29f3d6b7ad16 Import wiki pages
Kim Alvefur <zash@zash.se>
parents:
diff changeset
29
3967
0957ba6aeb99 mod_smacks: Update documentation and slightly adjust default values
tmolitor <thilo@eightysoft.de>
parents: 2596
diff changeset
30 If the client fails to reconnect before the timeout it will be marked as
0957ba6aeb99 mod_smacks: Update documentation and slightly adjust default values
tmolitor <thilo@eightysoft.de>
parents: 2596
diff changeset
31 offline like prosody does on disconnect without mod_smacks.
0957ba6aeb99 mod_smacks: Update documentation and slightly adjust default values
tmolitor <thilo@eightysoft.de>
parents: 2596
diff changeset
32 If the client is the last one for this jid, all message stanzas are added to
0957ba6aeb99 mod_smacks: Update documentation and slightly adjust default values
tmolitor <thilo@eightysoft.de>
parents: 2596
diff changeset
33 the offline store and all other stanzas stanzas are returned with an
0957ba6aeb99 mod_smacks: Update documentation and slightly adjust default values
tmolitor <thilo@eightysoft.de>
parents: 2596
diff changeset
34 "recipient-unavailable" error. If the client is not the last one with an
0957ba6aeb99 mod_smacks: Update documentation and slightly adjust default values
tmolitor <thilo@eightysoft.de>
parents: 2596
diff changeset
35 open smacks session, *all* stanzas are returned with an "recipient-unavailable" error.
1803
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
36
3967
0957ba6aeb99 mod_smacks: Update documentation and slightly adjust default values
tmolitor <thilo@eightysoft.de>
parents: 2596
diff changeset
37 If you deliberately disabled [mod_offline], all message stanzas of the last client
0957ba6aeb99 mod_smacks: Update documentation and slightly adjust default values
tmolitor <thilo@eightysoft.de>
parents: 2596
diff changeset
38 are also returned with an "recipient-unavailable" error, because the can not be
0957ba6aeb99 mod_smacks: Update documentation and slightly adjust default values
tmolitor <thilo@eightysoft.de>
parents: 2596
diff changeset
39 added to the offline storage.
0957ba6aeb99 mod_smacks: Update documentation and slightly adjust default values
tmolitor <thilo@eightysoft.de>
parents: 2596
diff changeset
40 If you don't want this behaviour you can use [mod_nooffline_noerror] to suppress the error.
0957ba6aeb99 mod_smacks: Update documentation and slightly adjust default values
tmolitor <thilo@eightysoft.de>
parents: 2596
diff changeset
41 This is generally only advisable, if you are sure that all your clients are using MAM!
2394
4c27ebcf4cbd mod_smacks: added new event "smacks-ack-delayed" used by mod_cloud_notify and extended the readme file accordingly (also mention mod_smacks_offline and mod_smacks_noerror in readme file)
tmolitor <thilo@eightysoft.de>
parents: 2154
diff changeset
42
4c27ebcf4cbd mod_smacks: added new event "smacks-ack-delayed" used by mod_cloud_notify and extended the readme file accordingly (also mention mod_smacks_offline and mod_smacks_noerror in readme file)
tmolitor <thilo@eightysoft.de>
parents: 2154
diff changeset
43 This module also provides some events used by [mod_cloud_notify].
4c27ebcf4cbd mod_smacks: added new event "smacks-ack-delayed" used by mod_cloud_notify and extended the readme file accordingly (also mention mod_smacks_offline and mod_smacks_noerror in readme file)
tmolitor <thilo@eightysoft.de>
parents: 2154
diff changeset
44 These events are: "smacks-ack-delayed", "smacks-hibernation-start" and
4c27ebcf4cbd mod_smacks: added new event "smacks-ack-delayed" used by mod_cloud_notify and extended the readme file accordingly (also mention mod_smacks_offline and mod_smacks_noerror in readme file)
tmolitor <thilo@eightysoft.de>
parents: 2154
diff changeset
45 "smacks-hibernation-end". See [mod_cloud_notify] for details on how this
4c27ebcf4cbd mod_smacks: added new event "smacks-ack-delayed" used by mod_cloud_notify and extended the readme file accordingly (also mention mod_smacks_offline and mod_smacks_noerror in readme file)
tmolitor <thilo@eightysoft.de>
parents: 2154
diff changeset
46 events are used there.
4c27ebcf4cbd mod_smacks: added new event "smacks-ack-delayed" used by mod_cloud_notify and extended the readme file accordingly (also mention mod_smacks_offline and mod_smacks_noerror in readme file)
tmolitor <thilo@eightysoft.de>
parents: 2154
diff changeset
47
2596
ffb6646b4253 Implement XEP-0198 revision 1.5.2 and limit number of hibernated sessions per user
tmolitor <thilo@eightysoft.de>
parents: 2503
diff changeset
48 Use prosody 0.10+ to have per user limits on allowed sessions in hibernation
ffb6646b4253 Implement XEP-0198 revision 1.5.2 and limit number of hibernated sessions per user
tmolitor <thilo@eightysoft.de>
parents: 2503
diff changeset
49 state and allowed sessions for which the h-value is kept even after the
ffb6646b4253 Implement XEP-0198 revision 1.5.2 and limit number of hibernated sessions per user
tmolitor <thilo@eightysoft.de>
parents: 2503
diff changeset
50 hibernation timed out.
ffb6646b4253 Implement XEP-0198 revision 1.5.2 and limit number of hibernated sessions per user
tmolitor <thilo@eightysoft.de>
parents: 2503
diff changeset
51 These are settable using `smacks_max_hibernated_sessions` and `smacks_max_old_sessions`.
ffb6646b4253 Implement XEP-0198 revision 1.5.2 and limit number of hibernated sessions per user
tmolitor <thilo@eightysoft.de>
parents: 2503
diff changeset
52
1803
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
53 Configuration
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
54 =============
1782
29f3d6b7ad16 Import wiki pages
Kim Alvefur <zash@zash.se>
parents:
diff changeset
55
2596
ffb6646b4253 Implement XEP-0198 revision 1.5.2 and limit number of hibernated sessions per user
tmolitor <thilo@eightysoft.de>
parents: 2503
diff changeset
56 Option Default Description
ffb6646b4253 Implement XEP-0198 revision 1.5.2 and limit number of hibernated sessions per user
tmolitor <thilo@eightysoft.de>
parents: 2503
diff changeset
57 ---------------------------------- ----------------- ------------------------------------------------------------------------------------------------------------------
3967
0957ba6aeb99 mod_smacks: Update documentation and slightly adjust default values
tmolitor <thilo@eightysoft.de>
parents: 2596
diff changeset
58 `smacks_hibernation_time` 600 (10 minutes) The number of seconds a disconnected session should stay alive for (to allow reconnect)
2596
ffb6646b4253 Implement XEP-0198 revision 1.5.2 and limit number of hibernated sessions per user
tmolitor <thilo@eightysoft.de>
parents: 2503
diff changeset
59 `smacks_enabled_s2s` false Enable Stream Management on server connections? *Experimental*
ffb6646b4253 Implement XEP-0198 revision 1.5.2 and limit number of hibernated sessions per user
tmolitor <thilo@eightysoft.de>
parents: 2503
diff changeset
60 `smacks_max_unacked_stanzas` 0 How many stanzas to send before requesting acknowledgement
3967
0957ba6aeb99 mod_smacks: Update documentation and slightly adjust default values
tmolitor <thilo@eightysoft.de>
parents: 2596
diff changeset
61 `smacks_max_ack_delay` 30 (1/2 minute) The number of seconds an ack must be unanswered to trigger an "smacks-ack-delayed" event
2596
ffb6646b4253 Implement XEP-0198 revision 1.5.2 and limit number of hibernated sessions per user
tmolitor <thilo@eightysoft.de>
parents: 2503
diff changeset
62 `smacks_max_hibernated_sessions` 10 The number of allowed sessions in hibernated state (limited per user)
ffb6646b4253 Implement XEP-0198 revision 1.5.2 and limit number of hibernated sessions per user
tmolitor <thilo@eightysoft.de>
parents: 2503
diff changeset
63 `smacks_max_old_sessions` 10 The number of allowed sessions with timed out hibernation for which the h-value is still kept (limited per user)
1803
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
64
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
65 Compatibility
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
66 =============
1782
29f3d6b7ad16 Import wiki pages
Kim Alvefur <zash@zash.se>
parents:
diff changeset
67
2596
ffb6646b4253 Implement XEP-0198 revision 1.5.2 and limit number of hibernated sessions per user
tmolitor <thilo@eightysoft.de>
parents: 2503
diff changeset
68 ----- -----------------------------------------------------------------------------
2394
4c27ebcf4cbd mod_smacks: added new event "smacks-ack-delayed" used by mod_cloud_notify and extended the readme file accordingly (also mention mod_smacks_offline and mod_smacks_noerror in readme file)
tmolitor <thilo@eightysoft.de>
parents: 2154
diff changeset
69 0.10 Works
2596
ffb6646b4253 Implement XEP-0198 revision 1.5.2 and limit number of hibernated sessions per user
tmolitor <thilo@eightysoft.de>
parents: 2503
diff changeset
70 0.9 Works, no per user limit of hibernated sessions
ffb6646b4253 Implement XEP-0198 revision 1.5.2 and limit number of hibernated sessions per user
tmolitor <thilo@eightysoft.de>
parents: 2503
diff changeset
71 0.8 Works, no per user limit of hibernated sessions, use version [7693724881b3]
ffb6646b4253 Implement XEP-0198 revision 1.5.2 and limit number of hibernated sessions per user
tmolitor <thilo@eightysoft.de>
parents: 2503
diff changeset
72 ----- -----------------------------------------------------------------------------
1876
9c9397d692aa mod_smacks/README: Update link to 0.8 version
Kim Alvefur <zash@zash.se>
parents: 1803
diff changeset
73
1782
29f3d6b7ad16 Import wiki pages
Kim Alvefur <zash@zash.se>
parents:
diff changeset
74
1803
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
75 Clients
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
76 =======
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
77
2503
7036a6e074d7 mod_smacks/README: Linkify the XEP
Kim Alvefur <zash@zash.se>
parents: 2394
diff changeset
78 Clients that support [XEP-0198]:
1782
29f3d6b7ad16 Import wiki pages
Kim Alvefur <zash@zash.se>
parents:
diff changeset
79
2596
ffb6646b4253 Implement XEP-0198 revision 1.5.2 and limit number of hibernated sessions per user
tmolitor <thilo@eightysoft.de>
parents: 2503
diff changeset
80 - Gajim (Linux, Windows, OS X)
ffb6646b4253 Implement XEP-0198 revision 1.5.2 and limit number of hibernated sessions per user
tmolitor <thilo@eightysoft.de>
parents: 2503
diff changeset
81 - Conversations (Android)
ffb6646b4253 Implement XEP-0198 revision 1.5.2 and limit number of hibernated sessions per user
tmolitor <thilo@eightysoft.de>
parents: 2503
diff changeset
82 - ChatSecure (iOS)
1803
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
83 - Swift (but not resumption, as of version 2.0 and alphas of 3.0)
4d73a1a6ba68 Convert all wiki pages to Markdown
Kim Alvefur <zash@zash.se>
parents: 1782
diff changeset
84 - Psi (in an unreleased branch)
2596
ffb6646b4253 Implement XEP-0198 revision 1.5.2 and limit number of hibernated sessions per user
tmolitor <thilo@eightysoft.de>
parents: 2503
diff changeset
85 - Yaxim (Android)
ffb6646b4253 Implement XEP-0198 revision 1.5.2 and limit number of hibernated sessions per user
tmolitor <thilo@eightysoft.de>
parents: 2503
diff changeset
86 - Monal (iOS)
1876
9c9397d692aa mod_smacks/README: Update link to 0.8 version
Kim Alvefur <zash@zash.se>
parents: 1803
diff changeset
87
9c9397d692aa mod_smacks/README: Update link to 0.8 version
Kim Alvefur <zash@zash.se>
parents: 1803
diff changeset
88 [7693724881b3]: //hg.prosody.im/prosody-modules/raw-file/7693724881b3/mod_smacks/mod_smacks.lua
3967
0957ba6aeb99 mod_smacks: Update documentation and slightly adjust default values
tmolitor <thilo@eightysoft.de>
parents: 2596
diff changeset
89 [mod_offline]: //modules.prosody.im/mod_offline
0957ba6aeb99 mod_smacks: Update documentation and slightly adjust default values
tmolitor <thilo@eightysoft.de>
parents: 2596
diff changeset
90 [mod_nooffline_noerror]: //modules.prosody.im/mod_nooffline_noerror
2394
4c27ebcf4cbd mod_smacks: added new event "smacks-ack-delayed" used by mod_cloud_notify and extended the readme file accordingly (also mention mod_smacks_offline and mod_smacks_noerror in readme file)
tmolitor <thilo@eightysoft.de>
parents: 2154
diff changeset
91 [mod_cloud_notify]: //modules.prosody.im/mod_cloud_notify