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mod_host_status_check/README.markdown @ 4651:8231774f5bfd
mod_cloud_notify_encrypted: Ensure body substring remains valid UTF-8
The `body:sub()` call risks splitting the string in the middle of a
multi-byte UTF-8 sequence. This should have been caught by util.stanza
validation, but that would have caused some havoc, at the very least causing
the notification to not be sent.
There have been no reports of this happening. Likely because this module
isn't widely deployed among users with languages that use many longer UTF-8
sequences.
The util.encodings.utf8.valid() function is O(n) where only the last
sequence really needs to be checked, but it's in C and expected to be fast.
author | Kim Alvefur <zash@zash.se> |
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date | Sun, 22 Aug 2021 13:22:59 +0200 |
parent | 2241:2a16a6c67288 |
child | 5923:694b62d8a82f |
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--- labels: Stage-Beta summary: Host status check ... Introduction ============ This module allows you to monitor the state of hosts and components in your Prosody server. For example, it will track whether components are connected and (if the component supports it) listen for heartbeats sent by the component to indicate that it is functioning. This module does not expose any interface to access the status information itself. See [mod\_http\_host\_status\_check] for a module that allows you to access host status information over HTTP(S). Configuration ============= There are no configuration options for this module. You should enable it on every host that you want to monitor, by adding it to modules\_enabled. Note that to monitor components, adding to the global modules\_enabled list will not suffice - you will need to add it to the component's own modules\_enabled, like this: ``` {.lua} Component "mycomponent.example.com" modules_enabled = { "host_status_check" } ``` Compatibility ============= Works with Prosody 0.9.x and later.