* Make Users._login and session.authenticate always raise AccessDenied
on authentication failure instead of only sometimes (cf
Session.authenticate calling security.check() which raises and not
catching the exception)
* Alter AccessDenied such that it's possible to add a custom access
message, for use with login rate limiting instead of smuggling the
information via the session
* Alter the RPC endpoints to catch and convert AccessDenied back to
a boolean sentinel
Task 31122 section 4.
Implement per-IP rate limiting of login attempts after some number
of failures.
* check_credentials has no reason to be public, make it private
* add hooks to check for login cooldown on a source IP (remote_addr:
http://werkzeug.pocoo.org/docs/0.14/wrappers/#werkzeug.wrappers.BaseRequest.remote_addr)
basis
* add baseline/default configuration of 60s cooldown
* add baseline threshold of 10 login failures, after checking odoo.com
logs it looks like we have short runs of up to 7 failures (assumed
to be legitimate) before the user either gets it right or goes and
looks it up
Depends on #24187
Xavier Morel