Mercurial > prosody-modules
view misc/sasl/example.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 |
parents | 7d2fcc7a15f7 |
children |
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local method = {} local method_mt = { __index = method } -- This should return a set of supported mechanisms function method:mechanisms() return { ["OAUTH-SOMETHING"] = true; } end -- Called when a mechanism is selecetd function method:select(mechanism) return mechanism == "OAUTH-SOMETHING"; end -- Called for each message received function method:process(message) -- parse the message if false then -- To send a SASL challenge: return "challenge", "respond-to-this"; end if false then -- To fail, send: return "failure", "not-authorized", "Helpful error message here"; end self.username = "someone"; return "success"; end local function new_sasl() return setmetatable({}, method_mt); end function method:clean_clone() return setmetatable({}, method_mt); end local provider = {} function provider.get_sasl_handler() return new_sasl(); end module:provides("auth", provider);