Mercurial > prosody-modules

annotate mod_http_stats_stream/mod_http_stats_stream.lua @ 5111:6ba2188e2686

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
mod_pubsub_mqtt: Add XEP-0060 <item> wrapper to payloads
author Matthew Wild <mwild1@gmail.com>
date Fri, 16 Dec 2022 12:11:16 +0000
parents bac3dae031ee
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
3643
740870196b97 mod_http_stats_stream: Make global to simplify
Kim Alvefur <zash@zash.se>
parents: 3635
diff changeset
1 module:set_global();
740870196b97 mod_http_stats_stream: Make global to simplify
Kim Alvefur <zash@zash.se>
parents: 3635
diff changeset
2
2432
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
3 local statsman = require "core.statsmanager";
3635
fd054689a64c mod_http_stats_stream: Use existing header preparation
Kim Alvefur <zash@zash.se>
parents: 2432
diff changeset
4 local http = require "net.http.server";
2432
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
5 local json = require "util.json";
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
6
4595
bac3dae031ee Add note of incompatibility with trunk since 5f15ab7c6ae5
Kim Alvefur <zash@zash.se>
parents: 3643
diff changeset
7 assert(statsman.get_stats, "not compatible with trunk based on openmetrics");
bac3dae031ee Add note of incompatibility with trunk since 5f15ab7c6ae5
Kim Alvefur <zash@zash.se>
parents: 3643
diff changeset
8
2432
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
9 local sessions = {};
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
10
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
11 local function updates_client_closed(response)
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
12 module:log("debug", "Streamstats client closed");
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
13 sessions[response] = nil;
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
14 end
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
15
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
16 local function get_updates(event)
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
17 local request, response = event.request, event.response;
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
18
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
19 response.on_destroy = updates_client_closed;
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
20
3635
fd054689a64c mod_http_stats_stream: Use existing header preparation
Kim Alvefur <zash@zash.se>
parents: 2432
diff changeset
21 response.headers.content_type = "text/event-stream";
fd054689a64c mod_http_stats_stream: Use existing header preparation
Kim Alvefur <zash@zash.se>
parents: 2432
diff changeset
22 response.headers.x_accel_buffering = "no"; -- for nginx maybe?
fd054689a64c mod_http_stats_stream: Use existing header preparation
Kim Alvefur <zash@zash.se>
parents: 2432
diff changeset
23 local resp = http.prepare_header(response);
fd054689a64c mod_http_stats_stream: Use existing header preparation
Kim Alvefur <zash@zash.se>
parents: 2432
diff changeset
24 table.insert(resp, "event: stats-full\r\n");
fd054689a64c mod_http_stats_stream: Use existing header preparation
Kim Alvefur <zash@zash.se>
parents: 2432
diff changeset
25 table.insert(resp, "data: ");
fd054689a64c mod_http_stats_stream: Use existing header preparation
Kim Alvefur <zash@zash.se>
parents: 2432
diff changeset
26 table.insert(resp, json.encode(statsman.get_stats()));
fd054689a64c mod_http_stats_stream: Use existing header preparation
Kim Alvefur <zash@zash.se>
parents: 2432
diff changeset
27 table.insert(resp, "\r\n\r\n");
fd054689a64c mod_http_stats_stream: Use existing header preparation
Kim Alvefur <zash@zash.se>
parents: 2432
diff changeset
28 response.conn:write(table.concat(resp));
2432
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
29
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
30 sessions[response] = request;
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
31 return true;
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
32 end
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
33
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
34
3643
740870196b97 mod_http_stats_stream: Make global to simplify
Kim Alvefur <zash@zash.se>
parents: 3635
diff changeset
35 module:hook("stats-updated", function (event)
2432
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
36 local data = table.concat({
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
37 "event: stats-updated";
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
38 "data: "..json.encode(event.changed_stats);
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
39 "";
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
40 "";
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
41 }, "\r\n")
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
42 for response in pairs(sessions) do
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
43 response.conn:write(data);
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
44 end
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
45 end);
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
46
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
47
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
48 module:depends("http");
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
49 module:provides("http", {
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
50 route = {
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
51 GET = get_updates;
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
52 }
47a6f01231b2 mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff changeset
53 });