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mod_host_status_heartbeat/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 | 2242:3f75f892a41e |
child | 5923:694b62d8a82f |
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--- labels: Stage-Beta summary: Host status heartbeat ... Introduction ============ This module integrates with [mod\_host\_status\_check] to provide heartbeats at regular intervals. The only time you will generally want this, is if you are using [mod\_component\_client] to run Prosody as an external component of another Prosody server that has [mod\_host\_status\_check] loaded and waiting for heartbeats. Alternatively you can run this on the same Prosody host as [mod\_http\_host\_status\_check] and it will simply update a variable periodically to indicate that Prosody and timers are functional. Configuration ============= The following configuration options are supported: ```{.lua} -- The number of seconds to wait between sending heartbeats status_check_heartbeat_interval = 5 -- Set this to "remote" (the default) if you are using mod_component_client -- and you want to send a heartbeat to a remote server. Otherwise -- set it to "local" to send to mod_host_status_check on the same server. status_check_heartbeat_mode = "remote" ``` Compatibility ============= Works with Prosody 0.9.x and later.