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mod_test_data/mod_test_data.lua @ 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 |
parent | 3357:af824168729a |
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local users = { "fezziwig", "badger", "nupkins", "pumblechook", "rouncewell" }; local host = "localhost"; local id = require "util.id"; local st = require "util.stanza"; local sm = require "core.storagemanager"; -- Return a random number from 1..max excluding n function random_other(n, max) return ((math.random(1, max-1)+(n-1))%max)+1; end local new_time; do local _current_time = os.time(); function new_time() _current_time = _current_time + math.random(1, 3600); return _current_time; end end function module.command(arg) --luacheck: ignore arg sm.initialize_host(host); local archive = sm.open(host, "archive", "archive"); for _ = 1, 100000 do local random = math.random(1, #users); local user, contact = users[random], users[random_other(random, #users)]; local user_jid, contact_jid = user.."@"..host, contact.."@"..host; local stanza = st.message({ to = contact_jid, from = user_jid, type="chat" }) :tag("body"):text(id.long()); archive:append(user, nil, stanza, new_time(), contact_jid) local stanza2 = st.clone(stanza); stanza2.attr.from, stanza2.attr.to = stanza.attr.to, stanza.attr.from; archive:append(contact, nil, stanza2, new_time(), user_jid) end end