Mercurial > prosody-modules
view mod_auth_ha1/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 | 4d73a1a6ba68 |
children |
line wrap: on
line source
--- labels: - 'Stage-Beta' - 'Type-Auth' summary: | Authentication module for 'HA1' hashed credentials in a text file, as used by reTurnServer ... Introduction ============ This module authenticates users against hashed credentials stored in a plain text file. The format is the same as that used by reTurnServer. Configuration ============= Name Default Description ----------------- ---------- --------------------------------- auth\_ha1\_file auth.txt Path to the authentication file Prosody reads the auth file at startup and on reload (e.g. SIGHUP). File Format =========== The file format is text, with one user per line. Each line is broken into four fields separated by colons (':'): username:ha1:host:status Field Description ---------- ---------------------------------------------------------------------------------- username The user's login name ha1 An MD5 hash of "username:host:password" host The XMPP hostname status The status of the account. Prosody expects this to be just the text "authorized" More info can be found [here](https://github.com/resiprocate/resiprocate/blob/master/reTurn/users.txt). Example ------- john:2a236a1a68765361c64da3b502d4e71c:example.com:authorized mary:4ed7cf9cbe81e02dbfb814de6f84edf1:example.com:authorized charlie:83002e42eb4515ec0070489339f2114c:example.org:authorized Constructing the hashes can be done manually using any MD5 utility, such as md5sum. For example the user 'john' has the password 'hunter2', and his hash can be calculated like this: echo -n "john:example.com:hunter2" | md5sum - Compatibility ============= ------ ------- 0.9 Works 0.10 Works ------ -------