prosody
4ea7bd7325be
plugins/mod_http_openmetrics.lua

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plugins/mod_http_openmetrics.lua @ 13792:4ea7bd7325be 13.0

core.portmanager: Restore use of per-host 'ssl' for SNI hosts. Fixes #1915. This was an unintentional regression, as per-host 'ssl' options became valid in 0.12 when SNI support was added for direct TLS ports. While we encourage most people to use the simpler automatic certificate selection (and it seems most do, given the overlooking of this bug), there are likely always going to be use cases for manually-configured certificates. The issue was introduced in commit 7e9ebdc75ce4 which inadvertently removed the per-host option checking for SNI.
author Kim Alvefur <zash@zash.se>
date Sat, 29 Mar 2025 22:25:19 +0100
parent 12977:74b9e05af71e
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1 -- Export statistics in OpenMetrics format
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2 --
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3 -- Copyright (C) 2014 Daurnimator
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4 -- Copyright (C) 2018 Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
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5 -- Copyright (C) 2021 Jonas Schäfer <jonas@zombofant.net>
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6 --
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7 -- This module is MIT/X11 licensed.
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8
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9 module:set_global();
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10
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11 local statsman = require "prosody.core.statsmanager";
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12 local ip = require "prosody.util.ip";
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13
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14 local get_metric_registry = statsman.get_metric_registry;
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15 local collect = statsman.collect;
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16
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17 local get_metrics;
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18
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19 local permitted_ips = module:get_option_set("openmetrics_allow_ips", { "::1", "127.0.0.1" });
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20 local permitted_cidr = module:get_option_string("openmetrics_allow_cidr");
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21
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22 local function is_permitted(request)
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23 local ip_raw = request.ip;
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24 if permitted_ips:contains(ip_raw) or
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25 (permitted_cidr and ip.match(ip.new_ip(ip_raw), ip.parse_cidr(permitted_cidr))) then
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26 return true;
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27 end
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28 return false;
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29 end
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30
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31 function get_metrics(event)
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32 if not is_permitted(event.request) then
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33 return 403; -- Forbidden
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34 end
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35
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36 local response = event.response;
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37 response.headers.content_type = "application/openmetrics-text; version=0.0.4";
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38
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39 if collect then
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40 -- Ensure to get up-to-date samples when running in manual mode
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41 collect()
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42 end
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43
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44 local registry = get_metric_registry()
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45 if registry == nil then
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46 response.headers.content_type = "text/plain; charset=utf-8"
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47 response.status_code = 404
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48 return "No statistics provider configured\n"
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49 end
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50
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51 return registry:render();
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52 end
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53
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54 module:depends "http";
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55 module:provides("http", {
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56 default_path = "metrics";
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57 route = {
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58 GET = get_metrics;
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59 };
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60 });