Add a setting to control the number of generated recovery tokens (at the moment set to 5)

[oussjarrousse]

The function genTokens in recovery.py generates 5 tokens by default:

@never_cache
def genTokens(request):
    #Delete old ones
    delTokens(request)
    #Then generate new one
    salt = randomGen(15)
    hashedKeys = []
    clearKeys = []
    for i in range(5):
            token = randomGen(5) + "-" + randomGen(5)
            hashedToken = make_password(token, salt, 'pbkdf2_sha256_custom')
            hashedKeys.append(hashedToken)
            clearKeys.append(token)
    uk=User_Keys()

    uk.username = request.user.username
    uk.properties={"secret_keys":hashedKeys, "salt":salt}
    uk.key_type="RECOVERY"
    uk.enabled = True
    uk.save()
    return HttpResponse(simplejson.dumps({"keys":clearKeys}))

There is no way to change the number of generated tokens.
I am thinking of adding a settings variable to control the number of generated recovery tokens, called MFA_NUMBER_OF_RECOVERY_CODES... something like this:

@never_cache
def genTokens(request):
    #Delete old ones
    delTokens(request)
    #Then generate new one
    salt = randomGen(15)
    hashedKeys = []
    clearKeys = []
    n = MFA_NUMBER_OF_RECOVERY_CODES
    if n < 5 or n > 10:
        n = 5
    for i in range(n):
            token = randomGen(5) + "-" + randomGen(5)
            hashedToken = make_password(token, salt, 'pbkdf2_sha256_custom')
            hashedKeys.append(hashedToken)
            clearKeys.append(token)
    uk=User_Keys()

    uk.username = request.user.username
    uk.properties={"secret_keys":hashedKeys, "salt":salt}
    uk.key_type="RECOVERY"
    uk.enabled = True
    uk.save()
    return HttpResponse(simplejson.dumps({"keys":clearKeys}))

[mkalioby]

Good idea but the line that is doing the check on n shall moved to a check or removed completely as it is the developer decision

[oussjarrousse]

I agree, that having the if statement to check n is ugly, and most probably not conform with other parts of the package. Where would the check happen?
Maybe I could add a dedicated function for that in helpers.py?