Got basic webpage working. Need to make base page, static folders
This commit is contained in:
Karthik Pullela
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"""
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Creates permissions for all installed apps that need permissions.
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"""
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import getpass
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import unicodedata
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from django.apps import apps as global_apps
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from django.contrib.auth import get_permission_codename
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from django.core import exceptions
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from django.db import DEFAULT_DB_ALIAS, router
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def _get_all_permissions(opts):
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"""
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Return (codename, name) for all permissions in the given opts.
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"""
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builtin = _get_builtin_permissions(opts)
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custom = list(opts.permissions)
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return builtin + custom
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def _get_builtin_permissions(opts):
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"""
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Return (codename, name) for all autogenerated permissions.
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By default, this is ('add', 'change', 'delete')
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"""
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perms = []
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for action in opts.default_permissions:
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perms.append((
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get_permission_codename(action, opts),
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'Can %s %s' % (action, opts.verbose_name_raw)
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))
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return perms
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def create_permissions(app_config, verbosity=2, interactive=True, using=DEFAULT_DB_ALIAS, apps=global_apps, **kwargs):
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if not app_config.models_module:
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return
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app_label = app_config.label
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try:
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app_config = apps.get_app_config(app_label)
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ContentType = apps.get_model('contenttypes', 'ContentType')
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Permission = apps.get_model('auth', 'Permission')
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except LookupError:
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return
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if not router.allow_migrate_model(using, Permission):
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return
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# This will hold the permissions we're looking for as
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# (content_type, (codename, name))
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searched_perms = []
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# The codenames and ctypes that should exist.
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ctypes = set()
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for klass in app_config.get_models():
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# Force looking up the content types in the current database
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# before creating foreign keys to them.
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ctype = ContentType.objects.db_manager(using).get_for_model(klass)
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ctypes.add(ctype)
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for perm in _get_all_permissions(klass._meta):
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searched_perms.append((ctype, perm))
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# Find all the Permissions that have a content_type for a model we're
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# looking for. We don't need to check for codenames since we already have
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# a list of the ones we're going to create.
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all_perms = set(Permission.objects.using(using).filter(
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content_type__in=ctypes,
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).values_list(
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"content_type", "codename"
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))
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perms = [
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Permission(codename=codename, name=name, content_type=ct)
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for ct, (codename, name) in searched_perms
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if (ct.pk, codename) not in all_perms
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]
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Permission.objects.using(using).bulk_create(perms)
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if verbosity >= 2:
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for perm in perms:
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print("Adding permission '%s'" % perm)
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def get_system_username():
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"""
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Return the current system user's username, or an empty string if the
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username could not be determined.
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"""
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try:
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result = getpass.getuser()
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except (ImportError, KeyError):
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# KeyError will be raised by os.getpwuid() (called by getuser())
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# if there is no corresponding entry in the /etc/passwd file
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# (a very restricted chroot environment, for example).
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return ''
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return result
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def get_default_username(check_db=True):
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"""
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Try to determine the current system user's username to use as a default.
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:param check_db: If ``True``, requires that the username does not match an
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existing ``auth.User`` (otherwise returns an empty string).
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:returns: The username, or an empty string if no username can be
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determined.
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"""
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# This file is used in apps.py, it should not trigger models import.
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from django.contrib.auth import models as auth_app
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# If the User model has been swapped out, we can't make any assumptions
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# about the default user name.
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if auth_app.User._meta.swapped:
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return ''
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default_username = get_system_username()
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try:
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default_username = (
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unicodedata.normalize('NFKD', default_username)
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.encode('ascii', 'ignore').decode('ascii')
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.replace(' ', '').lower()
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)
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except UnicodeDecodeError:
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return ''
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# Run the username validator
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try:
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auth_app.User._meta.get_field('username').run_validators(default_username)
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except exceptions.ValidationError:
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return ''
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# Don't return the default username if it is already taken.
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if check_db and default_username:
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try:
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auth_app.User._default_manager.get(username=default_username)
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except auth_app.User.DoesNotExist:
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pass
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else:
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return ''
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return default_username
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+75
@@ -0,0 +1,75 @@
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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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+197
@@ -0,0 +1,197 @@
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"""
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Management utility to create superusers.
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"""
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import getpass
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import sys
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from django.contrib.auth import get_user_model
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from django.contrib.auth.management import get_default_username
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from django.contrib.auth.password_validation import validate_password
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from django.core import exceptions
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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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from django.utils.text import capfirst
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class NotRunningInTTYException(Exception):
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pass
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class Command(BaseCommand):
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help = 'Used to create a superuser.'
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requires_migrations_checks = True
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stealth_options = ('stdin',)
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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self.UserModel = get_user_model()
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self.username_field = self.UserModel._meta.get_field(self.UserModel.USERNAME_FIELD)
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def add_arguments(self, parser):
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parser.add_argument(
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'--%s' % self.UserModel.USERNAME_FIELD,
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dest=self.UserModel.USERNAME_FIELD, default=None,
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help='Specifies the login for the superuser.',
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)
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parser.add_argument(
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'--noinput', '--no-input', action='store_false', dest='interactive',
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help=(
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'Tells Django to NOT prompt the user for input of any kind. '
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'You must use --%s with --noinput, along with an option for '
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'any other required field. Superusers created with --noinput will '
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'not be able to log in until they\'re given a valid password.' %
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self.UserModel.USERNAME_FIELD
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),
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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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for field in self.UserModel.REQUIRED_FIELDS:
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parser.add_argument(
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'--%s' % field, dest=field, default=None,
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help='Specifies the %s for the superuser.' % field,
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)
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def execute(self, *args, **options):
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self.stdin = options.get('stdin', sys.stdin) # Used for testing
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return super().execute(*args, **options)
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def handle(self, *args, **options):
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username = options[self.UserModel.USERNAME_FIELD]
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database = options['database']
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# If not provided, create the user with an unusable password
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password = None
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user_data = {}
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# Same as user_data but with foreign keys as fake model instances
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# instead of raw IDs.
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fake_user_data = {}
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# Do quick and dirty validation if --noinput
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if not options['interactive']:
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try:
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if not username:
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raise CommandError("You must use --%s with --noinput." % self.UserModel.USERNAME_FIELD)
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username = self.username_field.clean(username, None)
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for field_name in self.UserModel.REQUIRED_FIELDS:
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if options[field_name]:
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field = self.UserModel._meta.get_field(field_name)
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user_data[field_name] = field.clean(options[field_name], None)
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else:
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raise CommandError("You must use --%s with --noinput." % field_name)
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except exceptions.ValidationError as e:
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raise CommandError('; '.join(e.messages))
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else:
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# Prompt for username/password, and any other required fields.
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# Enclose this whole thing in a try/except to catch
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# KeyboardInterrupt and exit gracefully.
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default_username = get_default_username()
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try:
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if hasattr(self.stdin, 'isatty') and not self.stdin.isatty():
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raise NotRunningInTTYException("Not running in a TTY")
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# Get a username
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verbose_field_name = self.username_field.verbose_name
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while username is None:
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input_msg = capfirst(verbose_field_name)
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if default_username:
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input_msg += " (leave blank to use '%s')" % default_username
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username_rel = self.username_field.remote_field
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input_msg = '%s%s: ' % (
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input_msg,
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' (%s.%s)' % (
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username_rel.model._meta.object_name,
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username_rel.field_name
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) if username_rel else ''
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)
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username = self.get_input_data(self.username_field, input_msg, default_username)
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if not username:
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continue
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if self.username_field.unique:
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try:
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self.UserModel._default_manager.db_manager(database).get_by_natural_key(username)
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except self.UserModel.DoesNotExist:
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pass
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else:
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self.stderr.write("Error: That %s is already taken." % verbose_field_name)
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username = None
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for field_name in self.UserModel.REQUIRED_FIELDS:
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field = self.UserModel._meta.get_field(field_name)
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user_data[field_name] = options[field_name]
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while user_data[field_name] is None:
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message = '%s%s: ' % (
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capfirst(field.verbose_name),
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' (%s.%s)' % (
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field.remote_field.model._meta.object_name,
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field.remote_field.field_name,
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) if field.remote_field else '',
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)
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input_value = self.get_input_data(field, message)
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user_data[field_name] = input_value
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fake_user_data[field_name] = input_value
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# Wrap any foreign keys in fake model instances
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if field.remote_field:
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fake_user_data[field_name] = field.remote_field.model(input_value)
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# Get a password
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while password is None:
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password = getpass.getpass()
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password2 = getpass.getpass('Password (again): ')
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if password != password2:
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self.stderr.write("Error: Your passwords didn't match.")
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password = None
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# Don't validate passwords that don't match.
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continue
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if password.strip() == '':
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self.stderr.write("Error: Blank passwords aren't allowed.")
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password = None
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# Don't validate blank passwords.
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continue
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try:
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validate_password(password2, self.UserModel(**fake_user_data))
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except exceptions.ValidationError as err:
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self.stderr.write('\n'.join(err.messages))
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password = None
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except KeyboardInterrupt:
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self.stderr.write("\nOperation cancelled.")
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sys.exit(1)
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except NotRunningInTTYException:
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self.stdout.write(
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"Superuser creation skipped due to not running in a TTY. "
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"You can run `manage.py createsuperuser` in your project "
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"to create one manually."
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)
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if username:
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user_data[self.UserModel.USERNAME_FIELD] = username
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user_data['password'] = password
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self.UserModel._default_manager.db_manager(database).create_superuser(**user_data)
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if options['verbosity'] >= 1:
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self.stdout.write("Superuser created successfully.")
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def get_input_data(self, field, message, default=None):
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"""
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Override this method if you want to customize data inputs or
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validation exceptions.
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"""
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raw_value = input(message)
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if default and raw_value == '':
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raw_value = default
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try:
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val = field.clean(raw_value, None)
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except exceptions.ValidationError as e:
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self.stderr.write("Error: %s" % '; '.join(e.messages))
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val = None
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return val
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