Software / code / prosody-modules
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mod_pubsub_eventsource/mod_pubsub_eventsource.lua @ 6302:06fbbd45ba75
mod_cloud_notify: Readme: fix links and labels that were removed in the last commit
diff --git a/mod_cloud_notify/README.md b/mod_cloud_notify/README.md
--- a/mod_cloud_notify/README.md
+++ b/mod_cloud_notify/README.md
@@ -1,3 +1,9 @@
+----
+-labels:
+-- 'Stage-Beta'
+-summary: 'XEP-0357: Cloud push notifications'
+----
+
# Introduction
This module enables support for sending "push notifications" to clients
@@ -32,15 +38,15 @@ notification to your device. When your d
it will display it or wake up the app so it can connect to XMPP and
receive any pending messages.
-This protocol is described for developers in \[XEP-0357: Push
-Notifications\].
+This protocol is described for developers in [XEP-0357: Push
+Notifications].
-For this module to work reliably, you must have \[mod_smacks\],
-\[mod_mam\] and \[mod_carbons\] also enabled on your server.
+For this module to work reliably, you must have [mod_smacks],
+[mod_mam] and [mod_carbons] also enabled on your server.
Some clients, notably Siskin and Snikket iOS need some additional
extensions that are not currently defined in a standard XEP. To support
-these clients, see \[mod_cloud_notify_extensions\].
+these clients, see [mod_cloud_notify_extensions].
# Configuration
@@ -58,18 +64,18 @@ these clients, see \[mod_cloud_notify_ex
# Internal design notes
App servers are notified about offline messages, messages stored by
-\[mod_mam\] or messages waiting in the smacks queue. The business rules
+[mod_mam] or messages waiting in the smacks queue. The business rules
outlined
[here](//mail.jabber.org/pipermail/standards/2016-February/030925.html)
are all honored[^2].
-To cooperate with \[mod_smacks\] this module consumes some events:
+To cooperate with [mod_smacks] this module consumes some events:
`smacks-ack-delayed`, `smacks-hibernation-start` and
`smacks-hibernation-end`. These events allow this module to send out
notifications for messages received while the session is hibernated by
-\[mod_smacks\] or even when smacks acknowledgements for messages are
+[mod_smacks] or even when smacks acknowledgements for messages are
delayed by a certain amount of seconds configurable with the
-\[mod_smacks\] setting `smacks_max_ack_delay`.
+[mod_smacks] setting `smacks_max_ack_delay`.
The `smacks_max_ack_delay` setting allows to send out notifications to
clients which aren't already in smacks hibernation state (because the
| author | Menel <menel@snikket.de> |
|---|---|
| date | Fri, 13 Jun 2025 10:44:37 +0200 |
| parent | 4508:0329cf8cdecb |
| rev | line source |
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1 module:depends("http"); |
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2 module:depends("pubsub"); |
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3 |
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4 local streams = {}; |
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5 |
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6 local service = hosts[module.host].modules.pubsub.service; |
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7 |
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8 function client_closed(response) |
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9 local node = response._eventsource_node; |
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10 module:log("debug", "Destroying client for %q", node); |
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11 streams[node][response] = nil; |
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12 if next(streams[node]) == nil then |
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13 streams[node] = nil; |
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14 end |
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15 end |
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16 |
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17 function serve_stream(event, node) |
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18 module:log("debug", "Client subscribed to: %s", node); |
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19 |
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20 local response = event.response; |
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21 response.on_destroy = client_closed; |
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22 response._eventsource_node = node; |
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23 |
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24 response.conn:write(table.concat({ |
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25 "HTTP/1.1 200 OK"; |
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26 "Content-Type: text/event-stream"; |
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27 "Access-Control-Allow-Origin: *"; |
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28 "Access-Control-Allow-Methods: GET"; |
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29 "Access-Control-Max-Age: 7200"; |
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30 ""; |
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31 ""; |
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32 }, "\r\n")); |
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33 |
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34 local clientlist = streams[node]; |
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35 if not clientlist then |
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36 clientlist = {}; |
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37 streams[node] = clientlist; |
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38 end |
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39 clientlist[response] = response.conn; |
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40 |
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41 return true; |
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42 end |
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43 |
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44 function handle_update(event) |
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45 module:log("debug", "Item published: %q", event.node); |
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46 local node = event.node; |
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47 local clientlist = streams[node]; |
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48 local item = event.item; |
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49 if (item.name == "json" and item.attr.xmlns == "urn:xmpp:json:0") or (item.name == "data" and item.attr.xmlns == "https://prosody.im/protocol/data") then |
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50 item = item[1]; |
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51 end |
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52 local data = "data: "..tostring(item):gsub("\n", "\ndata: ").."\n\n"; |
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53 if not clientlist then module:log("debug", "No clients for %q", node); return; end |
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54 for response, conn in pairs(clientlist) do |
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55 conn:write(data); |
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56 end |
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57 end |
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58 |
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59 module:provides("http", { |
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60 name = "eventsource"; |
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61 route = { |
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62 ["GET /*"] = serve_stream; |
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63 }; |
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64 }); |
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65 |
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66 module:hook_object_event(service.events, "item-published", handle_update); |