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annotate mod_tweet_data/mod_tweet_data.lua @ 5668:ecfd7aece33b

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mod_measure_modules: Report module statuses via OpenMetrics Someone in the chat asked about a health check endpoint, which reminded me of mod_http_status, which provides access to module statuses with full details. After that, this idea came about, which seems natural. As noted in the README, it could be used to monitor that critical modules are in fact loaded correctly. As more modules use the status API, the more useful this module and mod_http_status becomes.
author Kim Alvefur <zash@zash.se>
date Fri, 06 Oct 2023 18:34:39 +0200
parents efdc3e4dc5df
children
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1 local mod_muc = module:depends("muc")
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2 local http = require "net.http"
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3 local st = require "util.stanza"
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4 local json = require "util.json"
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5 local url_pattern = [[https://twitter.com/%S+/status/%S+]]
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6 local xmlns_fasten = "urn:xmpp:fasten:0"
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7 local xmlns_xhtml = "http://www.w3.org/1999/xhtml"
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8 local twitter_apiv2_bearer_token = module:get_option_string("twitter_apiv2_bearer_token");
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9
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10 local function fetch_tweet_data(room, url, tweet_id, origin_id)
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11 if not url then return; end
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12 local options = {
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13 method = "GET";
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14 headers = { Authorization = "Bearer "..twitter_apiv2_bearer_token; };
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15 };
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16
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17 http.request(
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18 'https://api.twitter.com/2/tweets/'..tweet_id..'?expansions=author_id&tweet.fields=created_at,text&user.fields=id,name,username,profile_image_url',
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19 options,
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20 function(response_body, response_code, _)
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21 if response_code ~= 200 then
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22 module:log("debug", "Call to %s returned code %s and body %s", url, response_code, response_body)
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23 return;
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24 end
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25
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26 local response = json.decode(response_body);
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27 if not response then return; end
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28 if not response['data'] or not response['includes'] then return; end
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29
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30 local tweet = response['data'];
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31 local author = response['includes']['users'][1];
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32
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33 local to = room.jid
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34 local from = room and room.jid or module.host
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35 local fastening = st.message({to = to, from = from, type = 'groupchat'}):tag("apply-to", {xmlns = xmlns_fasten, id = origin_id})
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36
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37 fastening:tag(
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38 "meta",
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39 {
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40 xmlns = xmlns_xhtml,
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41 property = 'og:article:author',
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42 content = author['username']
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43 }
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44 ):up()
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45
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46 fastening:tag(
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47 "meta",
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48 {
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49 xmlns = xmlns_xhtml,
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50 property = 'og:article:published_time',
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51 content = tweet['created_at']
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52 }
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53 ):up()
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54
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55 fastening:tag(
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56 "meta",
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57 {
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58 xmlns = xmlns_xhtml,
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59 property = 'og:description',
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60 content = tweet['text']
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61 }
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62 ):up()
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63
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64 fastening:tag(
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65 "meta",
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66 {
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67 xmlns = xmlns_xhtml,
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68 property = 'og:image',
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69 content = author['profile_image_url']
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70 }
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71 ):up()
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72
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73 fastening:tag(
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74 "meta",
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75 {
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76 xmlns = xmlns_xhtml,
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77 property = 'og:title',
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78 content = author['username']
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79 }
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80 ):up()
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81
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82 fastening:tag(
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83 "meta",
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84 {
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85 xmlns = xmlns_xhtml,
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86 property = 'og:type',
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87 content = 'tweet'
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88 }
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89 ):up()
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90 fastening:tag(
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91 "meta",
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92 {
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93 xmlns = xmlns_xhtml,
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94 property = 'og:url',
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95 content = 'https://twitter.com/'..author['username']..'/status/'..tweet['id']
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96 }
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97 ):up()
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98
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99 mod_muc.get_room_from_jid(room.jid):broadcast_message(fastening)
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100 module:log("debug", tostring(fastening))
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101 end
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102 )
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103 end
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104
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105 local function tweet_handler(event)
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106 local room, stanza = event.room, st.clone(event.stanza)
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107 local body = stanza:get_child_text("body")
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108
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109 if not body then return; end
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110
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111 local origin_id = stanza:find("{urn:xmpp:sid:0}origin-id@id")
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112 if not origin_id then return; end
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113
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114 for url in body:gmatch(url_pattern) do
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115 local _, _, _, tweet_id = string.find(url, "https://twitter.com/(%S+)/status/(%S+)");
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116 fetch_tweet_data(room, url, tweet_id, origin_id);
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117 end
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118 end
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119
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120 module:hook("muc-occupant-groupchat", tweet_handler)
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121
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122
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123 module:hook("muc-message-is-historic", function (event)
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124 local fastening = event.stanza:get_child('apply-to', xmlns_fasten)
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125 if fastening and fastening:get_child('meta', xmlns_xhtml) then
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126 return true
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127 end
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128 end);