annotate mod_c2s_limit_sessions/mod_c2s_limit_sessions.lua @ 5668:ecfd7aece33b

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 f581210093a7
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
1365
ecc948f8d47d mod_c2s_limit_sessions: Limit number of resources a user may connect
Kim Alvefur <zash@zash.se>
parents:
diff changeset
1 -- mod_c2s_limit_sessions
ecc948f8d47d mod_c2s_limit_sessions: Limit number of resources a user may connect
Kim Alvefur <zash@zash.se>
parents:
diff changeset
2
ecc948f8d47d mod_c2s_limit_sessions: Limit number of resources a user may connect
Kim Alvefur <zash@zash.se>
parents:
diff changeset
3 local next, count = next, require "util.iterators".count;
ecc948f8d47d mod_c2s_limit_sessions: Limit number of resources a user may connect
Kim Alvefur <zash@zash.se>
parents:
diff changeset
4
ecc948f8d47d mod_c2s_limit_sessions: Limit number of resources a user may connect
Kim Alvefur <zash@zash.se>
parents:
diff changeset
5 local max_resources = module:get_option_number("max_resources", 10);
ecc948f8d47d mod_c2s_limit_sessions: Limit number of resources a user may connect
Kim Alvefur <zash@zash.se>
parents:
diff changeset
6
ecc948f8d47d mod_c2s_limit_sessions: Limit number of resources a user may connect
Kim Alvefur <zash@zash.se>
parents:
diff changeset
7 local sessions = hosts[module.host].sessions;
ecc948f8d47d mod_c2s_limit_sessions: Limit number of resources a user may connect
Kim Alvefur <zash@zash.se>
parents:
diff changeset
8 module:hook("resource-bind", function(event)
1366
f581210093a7 mod_c2s_limit_sessions: Fix global access
Kim Alvefur <zash@zash.se>
parents: 1365
diff changeset
9 local session = event.session;
f581210093a7 mod_c2s_limit_sessions: Fix global access
Kim Alvefur <zash@zash.se>
parents: 1365
diff changeset
10 if count(next, sessions[session.username].sessions) > max_resources then
1365
ecc948f8d47d mod_c2s_limit_sessions: Limit number of resources a user may connect
Kim Alvefur <zash@zash.se>
parents:
diff changeset
11 session:close{ condition = "policy-violation", text = "Too many resources" };
ecc948f8d47d mod_c2s_limit_sessions: Limit number of resources a user may connect
Kim Alvefur <zash@zash.se>
parents:
diff changeset
12 return false
ecc948f8d47d mod_c2s_limit_sessions: Limit number of resources a user may connect
Kim Alvefur <zash@zash.se>
parents:
diff changeset
13 end
ecc948f8d47d mod_c2s_limit_sessions: Limit number of resources a user may connect
Kim Alvefur <zash@zash.se>
parents:
diff changeset
14 end, -1);