Mercurial > prosody-modules
view mod_pubsub_alertmanager/mod_pubsub_alertmanager.lua @ 4730:1da4b815d2fe
mod_cloud_notify: Identify (and immediately push) urgent stanzas, e.g. calls
This covers the following things:
- A session that appears online, but has a broken TCP connection
- Clients such as Siskin and Snikket iOS that require a push for calls to work
It allows the stanza to be pushed immediately instead of waiting for the
session to hibernate or an ack to timeout.
It shouldn't break any existing cases.
author | Matthew Wild <mwild1@gmail.com> |
---|---|
date | Wed, 27 Oct 2021 19:12:03 +0100 |
parents | adda872fa9e1 |
children | 67190744b1eb |
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local st = require "util.stanza"; local json = require "util.json"; local filters = { --[[ TODO what's useful? ]] }; local render = require "util.interpolation".new("%b{}", tostring, filters); local uuid_generate = require "util.uuid".generate; -- TODO alertmanager supports inclusion of HTTP auth and OAuth, worth looking -- into for using instead of request IP module:depends("http"); local pubsub_service = module:depends("pubsub").service; local error_mapping = { ["forbidden"] = 403; ["item-not-found"] = 404; ["internal-server-error"] = 500; ["conflict"] = 409; }; local function publish_payload(node, actor, item_id, payload) local post_item = st.stanza("item", { xmlns = "http://jabber.org/protocol/pubsub", id = item_id, }) :add_child(payload); local ok, err = pubsub_service:publish(node, actor, item_id, post_item); module:log("debug", ":publish(%q, true, %q, %s) -> %q", node, item_id, payload:top_tag(), err or ""); if not ok then return error_mapping[err] or 500; end return 202; end local node_template = module:get_option_string("alertmanager_node_template", "{path?alerts}"); function handle_POST(event, path) local request = event.request; local payload = json.decode(event.request.body); if type(payload) ~= "table" then return 400; end if payload.version ~= "4" then return 501; end for _, alert in ipairs(payload.alerts) do local item = st.stanza("alerts", {xmlns = "urn:uuid:e3bec775-c607-4e9b-9a3f-94de1316d861:v4", status=alert.status}); for k, v in pairs(alert.annotations) do item:text_tag("annotation", v, { name=k }); end for k, v in pairs(alert.labels) do item:text_tag("label", v, { name=k }); end item:tag("starts", { at = alert.startsAt}):up(); if alert.endsAt and alert.status == "resolved" then item:tag("ends", { at = alert.endsAt }):up(); end if alert.generatorURL then item:tag("link", { href=alert.generatorURL }):up(); end local node = render(node_template, {alert = alert, path = path, payload = payload, request = request}); local ret = publish_payload(node, request.ip, uuid_generate(), item); if ret ~= 202 then return ret end end return 202; end local template = module:get_option_string("alertmanager_body_template", [[ *ALARM!* Status: {status} Starts at: {startsAt}{endsAt& Ends at: {endsAt}} Labels: {labels% {idx}: {item}} Annotations: {annotations% {idx}: {item}} ]]); module:hook("pubsub-summary/urn:uuid:e3bec775-c607-4e9b-9a3f-94de1316d861:v4", function(event) local payload = event.payload; local data = { status = payload.attr.status, firing = "firing" == payload.attr.status, resolved = "resolved" == payload.attr.status, annotations = {}, labels = {}, endsAt = payload:find("ends/@at"), startsAt = payload:find("starts/@at"), }; for label in payload:childtags("label") do data.labels[tostring(label.attr.name)] = label:get_text(); end for annotation in payload:childtags("annotation") do data.annotations[tostring(annotation.attr.name)] = annotation:get_text(); end return render(template, data); end); module:provides("http", { route = { ["POST /*"] = handle_POST; ["POST"] = handle_POST; }; });