commit 3f7e52eb620605352b1b122bd8f84fa804b57a25 Author: Julia Luna Date: Mon Mar 28 10:00:11 2022 +0200 initial commit diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..4cf0f17 --- /dev/null +++ b/.gitignore @@ -0,0 +1,2 @@ +env/ +.idea/ diff --git a/LICENSE.md b/LICENSE.md new file mode 100644 index 0000000..4020e41 --- /dev/null +++ b/LICENSE.md @@ -0,0 +1,483 @@ +THE WORK (AS DEFINED BELOW) IS PROVIDED UNDER THE TERMS OF THIS +COOPERATIVE NON-VIOLENT PUBLIC LICENSE (\"LICENSE\"). THE WORK IS +PROTECTED BY COPYRIGHT AND ALL OTHER APPLICABLE LAWS. ANY USE OF THE +WORK OTHER THAN AS AUTHORIZED UNDER THIS LICENSE OR COPYRIGHT LAW IS +PROHIBITED. 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If the standard suite of +rights granted under applicable copyright law includes additional rights +not granted under this License, such additional rights are deemed to be +included in the License; this License is not intended to restrict the +license of any rights under applicable law. \ No newline at end of file diff --git a/setup.py b/setup.py new file mode 100644 index 0000000..f98acfa --- /dev/null +++ b/setup.py @@ -0,0 +1,21 @@ +from setuptools import setup + +long_description = """ +A simple collection of python packages used in various projects. + +Anything that I repeatedly implement probably ends up in here. +""" + +setup( + name='xenua', + version='0.1.0', + description='Miscellaneous functions that are sometimes helpful', + long_description=long_description, + long_description_content_type='text/plain', + author='xenua', + author_email='python@xenua.me', + url='git.julia.network/julia/xenua_tools', + license='CNPLv7+', + python_requires='>=3.8', + packages=['xenua', 'xenua.django'], +) diff --git a/xenua/__init__.py b/xenua/__init__.py new file mode 100644 index 0000000..fa4b67b --- /dev/null +++ b/xenua/__init__.py @@ -0,0 +1,6 @@ +from .decorators import no_op +from .secrets import load_or_gen_secret, gen_secret +from .types import Vec2 +from .utils import LayeredObject, import_module + +__all__ = ['no_op', 'Vec2', 'gen_secret', 'load_or_gen_secret', 'LayeredObject', 'import_module'] diff --git a/xenua/__pycache__/__init__.cpython-310.pyc b/xenua/__pycache__/__init__.cpython-310.pyc new file mode 100644 index 0000000..0866b7b Binary files /dev/null and b/xenua/__pycache__/__init__.cpython-310.pyc differ diff --git a/xenua/__pycache__/decorators.cpython-310.pyc b/xenua/__pycache__/decorators.cpython-310.pyc new file mode 100644 index 0000000..056b65b Binary files /dev/null and b/xenua/__pycache__/decorators.cpython-310.pyc differ diff --git a/xenua/__pycache__/secrets.cpython-310.pyc b/xenua/__pycache__/secrets.cpython-310.pyc new file mode 100644 index 0000000..2cbaf91 Binary files /dev/null and b/xenua/__pycache__/secrets.cpython-310.pyc differ diff --git a/xenua/__pycache__/types.cpython-310.pyc b/xenua/__pycache__/types.cpython-310.pyc new file mode 100644 index 0000000..e374ddc Binary files /dev/null and b/xenua/__pycache__/types.cpython-310.pyc differ diff --git a/xenua/__pycache__/utils.cpython-310.pyc b/xenua/__pycache__/utils.cpython-310.pyc new file mode 100644 index 0000000..35e76d1 Binary files /dev/null and b/xenua/__pycache__/utils.cpython-310.pyc differ diff --git a/xenua/decorators.py b/xenua/decorators.py new file mode 100644 index 0000000..c7e9fcc --- /dev/null +++ b/xenua/decorators.py @@ -0,0 +1,5 @@ + + +def no_op(f: callable): + return f + diff --git a/xenua/django/__pycache__/middleware.cpython-310.pyc b/xenua/django/__pycache__/middleware.cpython-310.pyc new file mode 100644 index 0000000..2fafb72 Binary files /dev/null and b/xenua/django/__pycache__/middleware.cpython-310.pyc differ diff --git a/xenua/django/__pycache__/models.cpython-310.pyc b/xenua/django/__pycache__/models.cpython-310.pyc new file mode 100644 index 0000000..e01dcfa Binary files /dev/null and b/xenua/django/__pycache__/models.cpython-310.pyc differ diff --git a/xenua/django/__pycache__/views.cpython-310.pyc b/xenua/django/__pycache__/views.cpython-310.pyc new file mode 100644 index 0000000..82e804f Binary files /dev/null and b/xenua/django/__pycache__/views.cpython-310.pyc differ diff --git a/xenua/django/apps.py b/xenua/django/apps.py new file mode 100644 index 0000000..5ad5cd4 --- /dev/null +++ b/xenua/django/apps.py @@ -0,0 +1,7 @@ +from django.apps import AppConfig +from django.utils.translation import gettext_lazy as _ + + +class XenuaConfig(AppConfig): + name = 'xenua.django' + verbose_name = _('xenua django extensions') diff --git a/xenua/django/decorators.py b/xenua/django/decorators.py new file mode 100644 index 0000000..3c102c4 --- /dev/null +++ b/xenua/django/decorators.py @@ -0,0 +1,18 @@ + +try: + from django_scopes import scope +except ImportError: + from xenua.decorators import no_op as scope + + +def add_scopes(get_scopes=None, **scopes): + def decorate(fn): + def wrapper(*args, **kwargs): + nonlocal scopes + if get_scopes is not None: + scopes = get_scopes(**scopes) + with scope(**scopes): + return fn(*args, **kwargs) + return wrapper + return decorate + diff --git a/xenua/django/middleware.py b/xenua/django/middleware.py new file mode 100644 index 0000000..1ff3ed4 --- /dev/null +++ b/xenua/django/middleware.py @@ -0,0 +1,38 @@ +from django.http import HttpResponse + +try: + from django_scopes import scope +except ImportError: + from contextlib import nullcontext as scope + + +class UserScopeMiddleware: + """ + if django_scopes is installed, wrap the current view into a scope of user=request.user + override scope_condition to make it conditional + must be after AuthenticationMiddleware + """ + + @staticmethod + def scope_condition(request): + return True + + def __init__(self, get_response: callable): + self.get_response = get_response + + def __call__(self, request): + if self.scope_condition(request): + with scope(user=request.user): + return self.get_response(request) + else: + return self.get_response(request) + + +class UserScopeOrDropMiddleware(UserScopeMiddleware): + def __call__(self, request): + if self.scope_condition(request): + if request.user.is_authenticated: + with scope(user=request.user): + return self.get_response(request) + return HttpResponse('Unauthorized', status=401) + return self.get_response(request) diff --git a/xenua/django/models.py b/xenua/django/models.py new file mode 100644 index 0000000..9eac946 --- /dev/null +++ b/xenua/django/models.py @@ -0,0 +1,57 @@ +from django.db import models +from django.utils.crypto import get_random_string + +try: + from django_scopes import scopes_disabled +except ImportError: + from xenua.decorators import no_op as scopes_disabled + + +class RandomSlugMixin(models.Model): + """ + some alternatives for slug_chars: + abcdeghjkpqrsxyz23456789 # 24 chars, max clarity while being all lowercase + ABCDGHKLMNQRTabcdeghjr23456789 # 30 chars, max clarity mixed case + abcdefghijkmnpqrstuwxyz123467890 # 32 chars, all lowercase + """ + slug_chars = 'abcdefghijkmnpqrstuwxyz123467890' + + class Meta: + abstract = True + + slug = models.CharField(max_length=6, unique=True) + + def save(self, **kwargs): + self.generate_slug() + super().save(**kwargs) + + def generate_slug(self): + if not self.slug: + self.slug = self.generate_new_slug() + + @scopes_disabled() + def generate_new_slug(self): + slug = get_random_string(self.slug_length, self.slug_chars) + if self.__class__.objects.filter(slug=slug).exists(): + return self.generate_new_slug() + return slug + + @scopes_disabled() + @property + def slugs_available(self): + return self.slug_count_total - self.__class__.objects.count() + + @property + def slug_count_total(self): + return len(self.slug_chars) ** self.slug_length + + @property + def slug_length(self): + return self.__class__._meta.get_field('slug').max_length + + +class RandomSlugPKMixin(RandomSlugMixin): + slug = models.CharField(max_length=6, unique=True, primary_key=True) + + class Meta: + abstract = True diff --git a/xenua/django/rest/__init__.py b/xenua/django/rest/__init__.py new file mode 100644 index 0000000..e69de29 diff --git a/xenua/django/rest/__pycache__/__init__.cpython-310.pyc b/xenua/django/rest/__pycache__/__init__.cpython-310.pyc new file mode 100644 index 0000000..038c2d8 Binary files /dev/null and b/xenua/django/rest/__pycache__/__init__.cpython-310.pyc differ diff --git a/xenua/django/rest/__pycache__/apps.cpython-310.pyc b/xenua/django/rest/__pycache__/apps.cpython-310.pyc new file mode 100644 index 0000000..1ff00e8 Binary files /dev/null and b/xenua/django/rest/__pycache__/apps.cpython-310.pyc differ diff --git a/xenua/django/rest/__pycache__/authentication.cpython-310.pyc b/xenua/django/rest/__pycache__/authentication.cpython-310.pyc new file mode 100644 index 0000000..07fda6d Binary files /dev/null and b/xenua/django/rest/__pycache__/authentication.cpython-310.pyc differ diff --git a/xenua/django/rest/__pycache__/models.cpython-310.pyc b/xenua/django/rest/__pycache__/models.cpython-310.pyc new file mode 100644 index 0000000..80ea411 Binary files /dev/null and b/xenua/django/rest/__pycache__/models.cpython-310.pyc differ diff --git a/xenua/django/rest/__pycache__/views.cpython-310.pyc b/xenua/django/rest/__pycache__/views.cpython-310.pyc new file mode 100644 index 0000000..6c186dc Binary files /dev/null and b/xenua/django/rest/__pycache__/views.cpython-310.pyc differ diff --git a/xenua/django/rest/apps.py b/xenua/django/rest/apps.py new file mode 100644 index 0000000..fe3666f --- /dev/null +++ b/xenua/django/rest/apps.py @@ -0,0 +1,7 @@ +from django.apps import AppConfig +from django.utils.translation import gettext_lazy as _ + + +class RestConfig(AppConfig): + name = 'xenua.django.rest' + verbose_name = _("xenua rest extensions") diff --git a/xenua/django/rest/authentication.py b/xenua/django/rest/authentication.py new file mode 100644 index 0000000..3b31343 --- /dev/null +++ b/xenua/django/rest/authentication.py @@ -0,0 +1,6 @@ +from rest_framework.authentication import TokenAuthentication +from xenua.django.rest.models import Token + + +class TokenAuth(TokenAuthentication): + model = Token diff --git a/xenua/django/rest/migrations/0001_initial.py b/xenua/django/rest/migrations/0001_initial.py new file mode 100644 index 0000000..90a67a2 --- /dev/null +++ b/xenua/django/rest/migrations/0001_initial.py @@ -0,0 +1,29 @@ +# Generated by Django 4.0.3 on 2022-03-03 10:07 + +from django.conf import settings +from django.db import migrations, models +import django.db.models.deletion + + +class Migration(migrations.Migration): + + initial = True + + dependencies = [ + migrations.swappable_dependency(settings.AUTH_USER_MODEL), + ] + + operations = [ + migrations.CreateModel( + name='Token', + fields=[ + ('key', models.CharField(max_length=40, primary_key=True, serialize=False, verbose_name='key')), + ('creation_date', models.DateTimeField(auto_now_add=True, verbose_name='Creation Date')), + ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='tokens', to=settings.AUTH_USER_MODEL, verbose_name='User')), + ], + options={ + 'verbose_name': 'Token', + 'verbose_name_plural': 'Tokens', + }, + ), + ] diff --git a/xenua/django/rest/migrations/__init__.py b/xenua/django/rest/migrations/__init__.py new file mode 100644 index 0000000..e69de29 diff --git a/xenua/django/rest/migrations/__pycache__/0001_initial.cpython-310.pyc b/xenua/django/rest/migrations/__pycache__/0001_initial.cpython-310.pyc new file mode 100644 index 0000000..8d66a88 Binary files /dev/null and b/xenua/django/rest/migrations/__pycache__/0001_initial.cpython-310.pyc differ diff --git a/xenua/django/rest/migrations/__pycache__/__init__.cpython-310.pyc b/xenua/django/rest/migrations/__pycache__/__init__.cpython-310.pyc new file mode 100644 index 0000000..7ff5141 Binary files /dev/null and b/xenua/django/rest/migrations/__pycache__/__init__.cpython-310.pyc differ diff --git a/xenua/django/rest/models.py b/xenua/django/rest/models.py new file mode 100644 index 0000000..78f8238 --- /dev/null +++ b/xenua/django/rest/models.py @@ -0,0 +1,35 @@ +import os + +from django.conf import settings +from django.db import models +from django.utils.translation import gettext_lazy as _ + +try: + from django_scopes import ScopedManager +except ImportError: + ScopedManager = False + + +class Token(models.Model): + key = models.CharField(_('key'), max_length=40, primary_key=True) + user = models.ForeignKey( + settings.AUTH_USER_MODEL, related_name='tokens', + on_delete=models.CASCADE, verbose_name=_('User'), + ) + creation_date = models.DateTimeField(_('Creation Date'), auto_now_add=True) + + class Meta: + verbose_name = _('Token') + verbose_name_plural = _('Tokens') + + def save(self, *args, **kwargs): + if not self.key: + self.key = self.gen_key() + return super().save(*args, **kwargs) + + @classmethod + def gen_key(cls): + return os.urandom(20).hex() + + def __str__(self): + return self.key diff --git a/xenua/django/rest/serializers.py b/xenua/django/rest/serializers.py new file mode 100644 index 0000000..3edf3ff --- /dev/null +++ b/xenua/django/rest/serializers.py @@ -0,0 +1,34 @@ +from django.contrib.auth import authenticate +from rest_framework import serializers +from xenua.django.rest.views import UserScopedViewMixin + +from xenua.django.rest.models import Token + + +class TokenSerializer(UserScopedViewMixin, serializers.ModelSerializer): + password = serializers.CharField(style={'input_type': 'password'}, + trim_whitespace=False, write_only=True, required=False) + + class Meta: + model = Token + fields = ('key', 'creation_date', 'password') + read_only_fields = ('key', 'creation_date') + + def validate(self, attrs): + username = self.context.get('request').user.username + password = attrs.get('password') + + if username and password: + user = authenticate(request=self.context['request'], + username=username, password=password) + + if not user: + raise serializers.ValidationError('unable to log in', code='authorization') + + else: + raise serializers.ValidationError('include username and password for write operations', + code='authorization') + return {'user': user} + + def create(self, validated_data): + return self.Meta.model.objects.create(**validated_data) diff --git a/xenua/django/rest/views.py b/xenua/django/rest/views.py new file mode 100644 index 0000000..2a3586a --- /dev/null +++ b/xenua/django/rest/views.py @@ -0,0 +1,17 @@ +from rest_framework import viewsets +from rest_framework.permissions import IsAuthenticated +from xenua.django.views import UserScopedViewMixin + +from xenua.django.rest.models import Token + + +class TokenViewSet(UserScopedViewMixin, viewsets.ModelViewSet): + permission_classes = (IsAuthenticated,) + queryset = Token.objects.none() # hack for scope support + + def get_queryset(self): + return Token.objects.filter(user=self.request.user) + + def get_serializer_class(self): + from xenua.django.rest.serializers import TokenSerializer + return TokenSerializer diff --git a/xenua/django/views.py b/xenua/django/views.py new file mode 100644 index 0000000..daf6291 --- /dev/null +++ b/xenua/django/views.py @@ -0,0 +1,42 @@ +from functools import wraps + +from django.utils.decorators import classonlymethod +from rest_framework.viewsets import ViewSetMixin + +try: + from django_scopes import scope +except ImportError: + from xenua.decorators import no_op as scope + +try: + from rest_framework import APIView +except ImportError: + APIView = None + + +class ScopedViewMixin: + def dispatch(self, request, *args, **kwargs): + for method_name in self.http_method_names: + if (method := getattr(self, method_name, None)) is not None: + wrapped_method = wraps(method)(self.apply_scopes(method, method_name)) + setattr(self, method_name, wrapped_method) + + return super().dispatch(request, *args, **kwargs) + + def apply_scopes(self, to: callable, http_method): + def wrapper(request, *args, **kwargs): + with scope(**self.get_scopes(request, *args, **kwargs)): + return to(request, *args, **kwargs) + + return wrapper + + def get_scopes(self, request, *args, **kwargs): + return {} + + +class UserScopedViewMixin(ScopedViewMixin): + user_scope_name = 'user' + + def get_scopes(self, r, *args, **kwargs): + return {self.user_scope_name: r.user} + diff --git a/xenua/secrets.py b/xenua/secrets.py new file mode 100644 index 0000000..b6b1e88 --- /dev/null +++ b/xenua/secrets.py @@ -0,0 +1,23 @@ +from os.path import isfile +from random import SystemRandom +from string import punctuation, digits, ascii_letters + + +random = SystemRandom() + + +def gen_secret(): + return ''.join(random.choices(ascii_letters+digits+punctuation, k=64)) + + +def load_or_gen_secret(path, secret_func: callable = gen_secret): + if isfile(path): + with open(path) as f: + return f.read() + else: + from os import chmod + with open(path, 'w') as f: + secret = secret_func() + f.write(secret) + chmod(path, 0o400) + return secret diff --git a/xenua/types.py b/xenua/types.py new file mode 100644 index 0000000..4d47460 --- /dev/null +++ b/xenua/types.py @@ -0,0 +1,80 @@ +class Vec2: + class NotComparable(Exception): + ... + + def __init__(self, x, y): + self.x = x + self.y = y + + def __iter__(self): + yield self.x + yield self.y + + def __repr__(self): + return str(self) + + def __str__(self): + return f'Vec2({self.x}, {self.y})' + + def __add__(self, other): + x, y = other + return Vec2(self.x + x, self.y + y) + + def __sub__(self, other): + x, y = other + return Vec2(self.x - x, self.y - y) + + def __mul__(self, other): + if isinstance(other, int | float): + return Vec2(self.x * other, self.y * other) + else: + return NotImplemented + + def __eq__(self, other): + x, y = other + return self.x == x and self.y == y + + def __ne__(self, other): + x, y = other + return self.x != x or self.y != y + + def __gt__(self, other): + x, y = other + return self.x > x and self.y > y + + def __ge__(self, other): + x, y = other + return self.x >= x and self.y >= y + + def __lt__(self, other): + x, y = other + return self.x < x and self.y < y + + def __le__(self, other): + x, y = other + return self.x <= x and self.y <= y + + def __abs__(self): + return Vec2(abs(self.x), abs(self.y)) + + def __iadd__(self, other): + x, y = other + self.x += x + self.y += y + return self + + def __isub__(self, other): + x, y = other + self.x -= x + self.y -= y + return self + + def __imul__(self, other): + self.x *= other + self.y *= other + + def __complex__(self): + return complex(self.x, self.y) + + def __len__(self): + return (self.x ** 2 + self.y ** 2) ** 0.5 diff --git a/xenua/utils.py b/xenua/utils.py new file mode 100644 index 0000000..b9af0ae --- /dev/null +++ b/xenua/utils.py @@ -0,0 +1,31 @@ +import os +import sys +from pathlib import Path + + +class LayeredObject: + def __init__(self, *objects): + self._objects = objects + + def __getattr__(self, item): + for o in self.__dict__['_objects']: + try: + if isinstance(o, dict): + return o[item] + elif isinstance(o, os._Environ): + return o[item.upper()] + else: + return getattr(o, item) + except (AttributeError, KeyError): + pass + raise AttributeError(f"None of the objects contained in '{self.__class__.__name__}' have attribute '{item}'.\n" + f"Objects contained: {[repr(o) for o in self.__dict__['_objects']]}") + + +def import_module(path): + path = Path(path) + assert path.suffix == '.py', f'expected a path to a python module, got {path}' + sys.path.insert(1, str(path.parent)) + mod = __import__(path.stem) + sys.path.remove(str(path.parent)) + return mod