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annotate mod_http_health/mod_http_health.lua @ 5951:d6a695abb33c

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mod_ping_muc: Delay ping a configurable amount of time If a server is restarting, checking immediately before it has a chance to complete its restart and get ready would often fail, preventing the possibility of transparent restarts as supported by Prosody's mod_muc. Reconnecting immediately when a connection is closed for being idle, or because the remote server is trying to reclaim some resources, is also counter-productive as the connection may fail. Also, if there is some Internet routing problem affecting s2s, it may help to wait a bit before checking, in case the problem resolved itself in the mean time.
author Kim Alvefur <zash@zash.se>
date Sun, 11 Aug 2024 16:10:24 +0200
parents 09233b625cb9
children
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1 module:set_global();
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2
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3 local ip = require "util.ip";
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4
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5 local modulemanager = require "core.modulemanager";
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6
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7 local permitted_ips = module:get_option_set("http_health_allow_ips", { "::1", "127.0.0.1" });
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8 local permitted_cidr = module:get_option_string("http_health_allow_cidr");
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9
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10 local function is_permitted(request)
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11 local ip_raw = request.ip;
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12 if permitted_ips:contains(ip_raw) or
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13 (permitted_cidr and ip.match(ip.new_ip(ip_raw), ip.parse_cidr(permitted_cidr))) then
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14 return true;
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15 end
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16 return false;
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17 end
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18
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19 module:provides("http", {
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20 route = {
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21 GET = function(event)
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22 local request = event.request;
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23 if not is_permitted(request) then
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24 return 403; -- Forbidden
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25 end
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26
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27 for host in pairs(prosody.hosts) do
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28 local mods = modulemanager.get_modules(host);
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29 for _, mod in pairs(mods) do
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30 if mod.module.status_type == "error" then
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31 return { status_code = 500; headers = { content_type = "text/plain" }; body = "HAS ERRORS\n" };
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32 end
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33 end
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34 end
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35
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36 return { status_code = 200; headers = { content_type = "text/plain" }; body = "OK\n" };
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37 end;
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38 };
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39 });