author | Kim Alvefur <zash@zash.se> |
Tue, 19 Jun 2018 19:11:29 +0200 | |
changeset 3125 | 92b4a1d72d73 |
parent 2436 | 47a6f01231b2 |
child 3639 | fd054689a64c |
permissions | -rw-r--r-- |
2436
47a6f01231b2
mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
1 |
local statsman = require "core.statsmanager"; |
47a6f01231b2
mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
2 |
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
|
3 |
|
47a6f01231b2
mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
4 |
local sessions = {}; |
47a6f01231b2
mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
5 |
|
47a6f01231b2
mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
6 |
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
|
7 |
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
|
8 |
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
|
9 |
end |
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 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
|
12 |
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
|
13 |
|
47a6f01231b2
mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
14 |
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
|
15 |
|
47a6f01231b2
mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
16 |
response.conn:write(table.concat({ |
47a6f01231b2
mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
17 |
"HTTP/1.1 200 OK"; |
47a6f01231b2
mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
18 |
"Content-Type: text/event-stream"; |
47a6f01231b2
mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
19 |
"X-Accel-Buffering: no"; -- For nginx maybe? |
47a6f01231b2
mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
20 |
""; |
47a6f01231b2
mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
21 |
"event: stats-full"; |
47a6f01231b2
mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
22 |
"data: "..json.encode(statsman.get_stats()); |
47a6f01231b2
mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
23 |
""; |
47a6f01231b2
mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
24 |
""; |
47a6f01231b2
mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
25 |
}, "\r\n")); |
47a6f01231b2
mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
26 |
|
47a6f01231b2
mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
27 |
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
|
28 |
return true; |
47a6f01231b2
mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
29 |
end |
47a6f01231b2
mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
30 |
|
47a6f01231b2
mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
31 |
|
47a6f01231b2
mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
32 |
module:hook_global("stats-updated", function (event) |
47a6f01231b2
mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
33 |
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
|
34 |
"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
|
35 |
"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
|
36 |
""; |
47a6f01231b2
mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
37 |
""; |
47a6f01231b2
mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
38 |
}, "\r\n") |
47a6f01231b2
mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
39 |
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
|
40 |
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
|
41 |
end |
47a6f01231b2
mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
42 |
end); |
47a6f01231b2
mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
43 |
|
47a6f01231b2
mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
44 |
|
47a6f01231b2
mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
45 |
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
|
46 |
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
|
47 |
route = { |
47a6f01231b2
mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
48 |
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
|
49 |
} |
47a6f01231b2
mod_http_stats_stream: Sends statistics from statsmanager over an HTTP event stream
Kim Alvefur <zash@zash.se>
parents:
diff
changeset
|
50 |
}); |