Mercurial > prosody-modules
annotate mod_http_stats_stream/mod_http_stats_stream.lua @ 4730:1da4b815d2fe
mod_cloud_notify: Identify (and immediately push) urgent stanzas, e.g. calls
This covers the following things:
- A session that appears online, but has a broken TCP connection
- Clients such as Siskin and Snikket iOS that require a push for calls to work
It allows the stanza to be pushed immediately instead of waiting for the
session to hibernate or an ack to timeout.
It shouldn't break any existing cases.
author | Matthew Wild <mwild1@gmail.com> |
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date | Wed, 27 Oct 2021 19:12:03 +0100 |
parents | bac3dae031ee |
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1 module:set_global(); |
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2 |
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3 local statsman = require "core.statsmanager"; |
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4 local http = require "net.http.server"; |
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5 local json = require "util.json"; |
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6 |
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7 assert(statsman.get_stats, "not compatible with trunk based on openmetrics"); |
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8 |
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9 local sessions = {}; |
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10 |
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11 local function updates_client_closed(response) |
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12 module:log("debug", "Streamstats client closed"); |
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13 sessions[response] = nil; |
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14 end |
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15 |
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16 local function get_updates(event) |
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17 local request, response = event.request, event.response; |
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18 |
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19 response.on_destroy = updates_client_closed; |
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20 |
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21 response.headers.content_type = "text/event-stream"; |
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22 response.headers.x_accel_buffering = "no"; -- for nginx maybe? |
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23 local resp = http.prepare_header(response); |
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24 table.insert(resp, "event: stats-full\r\n"); |
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25 table.insert(resp, "data: "); |
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26 table.insert(resp, json.encode(statsman.get_stats())); |
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27 table.insert(resp, "\r\n\r\n"); |
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28 response.conn:write(table.concat(resp)); |
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29 |
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30 sessions[response] = request; |
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31 return true; |
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32 end |
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33 |
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34 |
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35 module:hook("stats-updated", function (event) |
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36 local data = table.concat({ |
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37 "event: stats-updated"; |
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38 "data: "..json.encode(event.changed_stats); |
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39 ""; |
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40 ""; |
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41 }, "\r\n") |
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42 for response in pairs(sessions) do |
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43 response.conn:write(data); |
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44 end |
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45 end); |
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46 |
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47 |
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48 module:depends("http"); |
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49 module:provides("http", { |
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50 route = { |
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51 GET = get_updates; |
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52 } |
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53 }); |