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91 lines
2.8 KiB
Python
91 lines
2.8 KiB
Python
from django.conf import settings
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from django.core.exceptions import ValidationError
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from django.utils.translation import gettext as _
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from evennia.accounts.models import AccountDB
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import re
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class EvenniaUsernameAvailabilityValidator:
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"""
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Checks to make sure a given username is not taken or otherwise reserved.
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"""
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def __call__(self, username):
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"""
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Validates a username to make sure it is not in use or reserved.
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Args:
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username (str): Username to validate
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Returns:
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None (None): None if password successfully validated,
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raises ValidationError otherwise.
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"""
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# Check guest list
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if (settings.GUEST_LIST and username.lower() in (guest.lower() for guest in settings.GUEST_LIST)):
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raise ValidationError(
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_('Sorry, that username is reserved.'),
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code='evennia_username_reserved',
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)
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# Check database
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exists = AccountDB.objects.filter(username__iexact=username).exists()
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if exists:
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raise ValidationError(
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_('Sorry, that username is already taken.'),
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code='evennia_username_taken',
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)
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class EvenniaPasswordValidator:
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def __init__(self, regex=r"^[\w. @+\-',]+$",
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policy="Password should contain a mix of letters, "
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"spaces, digits and @/./+/-/_/'/, only."):
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"""
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Constructs a standard Django password validator.
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Args:
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regex (str): Regex pattern of valid characters to allow.
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policy (str): Brief explanation of what the defined regex permits.
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"""
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self.regex = regex
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self.policy = policy
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def validate(self, password, user=None):
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"""
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Validates a password string to make sure it meets predefined Evennia
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acceptable character policy.
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Args:
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password (str): Password to validate
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user (None): Unused argument but required by Django
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Returns:
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None (None): None if password successfully validated,
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raises ValidationError otherwise.
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"""
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# Check complexity
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if not re.findall(self.regex, password):
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raise ValidationError(
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_(self.policy),
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code='evennia_password_policy',
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)
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def get_help_text(self):
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"""
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Returns a user-facing explanation of the password policy defined
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by this validator.
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Returns:
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text (str): Explanation of password policy.
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"""
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return _(
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"%s From a terminal client, you can also use a phrase of multiple words if "
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"you enclose the password in double quotes." % self.policy
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)
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