Mercurial > prosody-modules

annotate mod_http_stats_stream/mod_http_stats_stream.lua @ 5491:7842502c1157

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mod_http_debug: Log some extended info about requests If you point something external at this module, you don't get the response body back, hence it can be useful to see some details in the log as well.
author Kim Alvefur <zash@zash.se>
date Fri, 26 May 2023 15:37:15 +0200
parents bac3dae031ee
children
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740870196b97 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 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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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 });