76 lines
2.5 KiB
Python
76 lines
2.5 KiB
Python
import getpass
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from django.contrib.auth import get_user_model
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from django.contrib.auth.password_validation import validate_password
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from django.core.exceptions import ValidationError
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from django.core.management.base import BaseCommand, CommandError
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from django.db import DEFAULT_DB_ALIAS
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UserModel = get_user_model()
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class Command(BaseCommand):
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help = "Change a user's password for django.contrib.auth."
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requires_migrations_checks = True
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requires_system_checks = False
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def _get_pass(self, prompt="Password: "):
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p = getpass.getpass(prompt=prompt)
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if not p:
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raise CommandError("aborted")
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return p
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def add_arguments(self, parser):
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parser.add_argument(
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'username', nargs='?',
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help='Username to change password for; by default, it\'s the current username.',
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)
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parser.add_argument(
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'--database', action='store', dest='database',
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default=DEFAULT_DB_ALIAS,
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help='Specifies the database to use. Default is "default".',
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)
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def handle(self, *args, **options):
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if options['username']:
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username = options['username']
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else:
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username = getpass.getuser()
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try:
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u = UserModel._default_manager.using(options['database']).get(**{
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UserModel.USERNAME_FIELD: username
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})
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except UserModel.DoesNotExist:
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raise CommandError("user '%s' does not exist" % username)
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self.stdout.write("Changing password for user '%s'\n" % u)
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MAX_TRIES = 3
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count = 0
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p1, p2 = 1, 2 # To make them initially mismatch.
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password_validated = False
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while (p1 != p2 or not password_validated) and count < MAX_TRIES:
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p1 = self._get_pass()
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p2 = self._get_pass("Password (again): ")
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if p1 != p2:
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self.stdout.write("Passwords do not match. Please try again.\n")
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count += 1
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# Don't validate passwords that don't match.
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continue
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try:
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validate_password(p2, u)
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except ValidationError as err:
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self.stderr.write('\n'.join(err.messages))
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count += 1
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else:
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password_validated = True
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if count == MAX_TRIES:
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raise CommandError("Aborting password change for user '%s' after %s attempts" % (u, count))
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u.set_password(p1)
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u.save()
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return "Password changed successfully for user '%s'" % u
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