Password field should allow user-specified regex

[Steve McLellan]

The default password regex is very restrictive. It'd be nice to be able to specify the regex as part of the UI descriptor (and the existing one could be a default). This could be an additional attribute for 'password' fields with the defaults currently hardcoded in dynamic_fields -

 min_length: 7
 max_length: 255
 regex: '^.*(?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?=.*[%(special_characters)s]).*$'
 special_characters: '!@#$%^&*()_+|\/.,~?><:{}'
 description_text: 'at least one letter, one number and one special character'

The help text becomes "Enter a password with %(description_text)s" and the error message becomes "The password must contain %(description_text)s".
The validator becomes regex % special_characters.

[Ekaterina Chernova (efedorova)]

We definitely should allow to set password string in ui definition

[Kirill Zaitsev (kzaitsev)]

I believe this one is already implemented by Kate