Mercurial > prosody-modules
annotate mod_http_stats_stream/mod_http_stats_stream.lua @ 4537:53ee391ca689
mod_smacks: Fix traceback due to session being destroyed in send()
Sending something can cause the OS to notice that the connection is dead
and then the connection can be dead at this point. More likely if
opportunistic_writes is enabled.
author | Kim Alvefur <zash@zash.se> |
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date | Thu, 01 Apr 2021 11:35:26 +0200 |
parents | 740870196b97 |
children | bac3dae031ee |
rev | line source |
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mod_http_stats_stream: Make global to simplify
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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 local sessions = {}; |
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8 |
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9 local function updates_client_closed(response) |
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10 module:log("debug", "Streamstats client closed"); |
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11 sessions[response] = nil; |
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12 end |
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13 |
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14 local function get_updates(event) |
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15 local request, response = event.request, event.response; |
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16 |
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17 response.on_destroy = updates_client_closed; |
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18 |
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19 response.headers.content_type = "text/event-stream"; |
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20 response.headers.x_accel_buffering = "no"; -- for nginx maybe? |
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21 local resp = http.prepare_header(response); |
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22 table.insert(resp, "event: stats-full\r\n"); |
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23 table.insert(resp, "data: "); |
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24 table.insert(resp, json.encode(statsman.get_stats())); |
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25 table.insert(resp, "\r\n\r\n"); |
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26 response.conn:write(table.concat(resp)); |
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27 |
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28 sessions[response] = request; |
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29 return true; |
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30 end |
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31 |
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32 |
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33 module:hook("stats-updated", function (event) |
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34 local data = table.concat({ |
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35 "event: stats-updated"; |
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36 "data: "..json.encode(event.changed_stats); |
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37 ""; |
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38 ""; |
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39 }, "\r\n") |
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40 for response in pairs(sessions) do |
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41 response.conn:write(data); |
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42 end |
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43 end); |
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44 |
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45 |
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46 module:depends("http"); |
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47 module:provides("http", { |
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48 route = { |
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49 GET = get_updates; |
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50 } |
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51 }); |