Leaking OTP in Hadoop plugin

[ilija-lazoroski]

Describe the bug

It seems that we are leaking OTP in Hadoop payload logging

To Reproduce

Steps to reproduce the behavior:

1. Configure the Monkey with Hadoop plugin
2. Run the monkey on any hadoop machine
3. Observe logs

Expected behavior

We shouldn't be logging OTP.

Screenshots

Machine version (please complete the following information):

• OS: Windows or Linux

Tasks

• Fix up logging level in Hadoop plugin
  • Do not forget to rebuild the plugin
• Fix the regex in OTPFormatter
  • Store the OTP character set in common and use it in OTPFormatter and AuthenticationFacade.generate_otp()
  • Compile regexes as class variables so they don't need to be recompiled for every single log message

[shreyamalviya]

The regex in OTPFormatter needs to be fixed.

[mssalvatore]

We should also consider modifying the plugin to not leak this in the first place.

[mssalvatore]

The regex in OTPFormatter needs to be fixed.

A few improvements that can be made:

1. Store the OTP character set somewhere in common so the regex and the generate_otp() function are kept in sync
2. Compile the regexes once as a class variables, instead of every time the format() function is called.