Mercurial > prosody-modules
annotate mod_smacks/README.markdown @ 2159:5e8dec076afc
mod_auth_http_async: Fall back to non-async calling of http_auth_url
if util.async is not available
| author | JC Brand <jcbrand@minddistrict.com> |
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| date | Fri, 15 Apr 2016 13:45:01 +0000 |
| parents | ada71b81425a |
| children | 4c27ebcf4cbd |
| rev | line source |
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1 --- |
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2 labels: |
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3 - 'Stage-Alpha' |
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4 summary: 'XEP-0198: Reliability and fast reconnects for XMPP' |
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5 ... |
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7 Introduction |
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8 ============ |
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10 By default XMPP is as reliable as your network is. Unfortunately in some |
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11 cases that is not very reliable - in some network conditions disconnects |
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12 can be frequent and message loss can occur. |
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14 To overcome this, XMPP has an optional extension (XEP-0198: Stream |
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15 Management) which, when supported by both the client and server, can |
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16 allow a client to resume a disconnected session, and prevent message |
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17 loss. |
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19 Details |
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20 ======= |
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22 When using XEP-0198 both the client and the server keep a queue of the |
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23 most recently sent stanzas - this is cleared when the other end |
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24 acknowledges they have received the stanzas. If the client disconnects, |
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25 instead of marking the user offline the server pretends the client is |
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26 still online for a short (configurable) period of time. If the client |
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27 reconnects within this period, any stanzas in the queue that the client |
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28 did not receive are re-sent. |
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30 If the client fails to reconnect before the timeout then it is marked |
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31 offline as normal, and any stanzas in the queue are returned to the |
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32 sender as a "recipient-unavailable" error. |
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33 |
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34 Configuration |
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35 ============= |
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37 Option Default Description |
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38 ------------------------------ ----------------- ----------------------------------------------------------------------------------------- |
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39 `smacks_hibernation_time` 300 (5 minutes) The number of seconds a disconnected session should stay alive for (to allow reconnect) |
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40 `smacks_enabled_s2s` false Enable Stream Management on server connections? *Experimental* |
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41 `smacks_max_unacked_stanzas` 0 How many stanzas to send before requesting acknowledgement |
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42 |
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43 Compatibility |
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44 ============= |
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46 ----- ----------------------------------- |
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47 0.9 Works |
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48 0.8 Works, use version [7693724881b3] |
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49 ----- ----------------------------------- |
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50 |
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52 Clients |
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53 ======= |
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54 |
| 1782 | 55 Clients that support XEP-0198: |
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57 - Gajim |
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58 - Swift (but not resumption, as of version 2.0 and alphas of 3.0) |
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59 - Psi (in an unreleased branch) |
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60 - Conversations |
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61 - Yaxim |
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62 |
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63 [7693724881b3]: //hg.prosody.im/prosody-modules/raw-file/7693724881b3/mod_smacks/mod_smacks.lua |