Mercurial > prosody-modules
view mod_nooffline_noerror/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> |
|---|---|
| date | Sun, 22 Aug 2021 13:22:59 +0200 |
| parents | 7e7ac4af6e0c |
| children |
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--- labels: - 'Stage-Alpha' summary: Discard offline stanzas instead of generating stanza errors if mod_offline is not loaded ... Introduction ============ By default without mod_offline stanzas that would go to offline storage trigger error stanzas sent back to the sender to inform him of undeliverable stanzas. But if you use MAM on your server and are certain, all of your clients are using it, you can use this module to disable the error stanzas. If mod_offline is loaded, this module will do nothing. Warning ======= You most certainly *should not* use this module if you cannot be certain that *all* your clients support and use MAM! Compatibility ============= ----- ------------------------------------------------------------------- trunk Works 0.10 Works 0.9 Untested but should work ----- -------------------------------------------------------------------