- Run HTML through the template engine, preventing XSS from various
vectors
- Fix uncaught exception when a history entry about domain template
deletion is processed
- Adapt indentation to 4 space characters per level
The order of account names returned by User.get_accounts() affects the
order account names are displyed in on /domain/add if the current user
neither has the Administrator role nor the Operator role and the
`allow_user_create_domain` setting is enabled at the same time.
If the current user does have the Administrator or Operator role,
routes.domain.add() already returns accounts ordered by name, so this
change makes it consistent.
The implementation of `random.choice()` uses the Mersenne Twister, the
output of which is predictable by observing previous output, and is as
such unsuitable for security-sensitive applications. A cryptographically
secure pseudorandom number generator - which the `secrets` module relies
on - should be used instead in those instances.
When creating a new local user, there is a chance that, due to a copy &
paste or typing error, whitespace will be introduced at the start or end
of the username. This can lead to issues when trying to log in using the
affected username, as such a condition can easily be overlooked - no
user will be found in the database if entering the username without the
aforementioned whitespace. This commit therefore strip()s the username
string within routes/{admin,index}.py.
The firstname, lastname and email strings within
routes/{admin,index,user}.py are also strip()ped on this occasion.
The common procedure for HTTP Basic Auth is that a client does /not/
immediately send out credentials via an 'Authorization'-header, but to
wait until the server tells the client to do so - which the server
indicates via the 'WWW-Authenticate'-header.
PowerDNS-Admin (and flask in general), though, abort the whole
communication if no Authorization header was found in the initial
request - resulting in '200 "badauth"'.
While this might work for /some/ HTTP clients - which right away add an
Authorization header crafted from provided credentials (via args or
extracted from given URL), this is /not/ standard and /not/ common.
Hence add the 'WWW-Authenticate'-header for every unauthenticated call
checking for dyndns authorisation.
Note, though, this changes the status code from 200 to 401 in this case,
which - given the explanation why 200 was chosen in the first place -
might cause side effects.
