1091 lines
38 KiB
Python
1091 lines
38 KiB
Python
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import json
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import mimetypes
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import os
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import sys
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from copy import copy
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from functools import partial
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from http import HTTPStatus
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from importlib import import_module
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from io import BytesIO
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from urllib.parse import unquote_to_bytes, urljoin, urlparse, urlsplit
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from asgiref.sync import sync_to_async
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from django.conf import settings
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from django.core.handlers.asgi import ASGIRequest
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from django.core.handlers.base import BaseHandler
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from django.core.handlers.wsgi import WSGIRequest
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from django.core.serializers.json import DjangoJSONEncoder
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from django.core.signals import got_request_exception, request_finished, request_started
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from django.db import close_old_connections
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from django.http import HttpRequest, QueryDict, SimpleCookie
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from django.test import signals
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from django.test.utils import ContextList
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from django.urls import resolve
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from django.utils.encoding import force_bytes
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from django.utils.functional import SimpleLazyObject
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from django.utils.http import urlencode
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from django.utils.itercompat import is_iterable
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from django.utils.regex_helper import _lazy_re_compile
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__all__ = (
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"AsyncClient",
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"AsyncRequestFactory",
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"Client",
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"RedirectCycleError",
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"RequestFactory",
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"encode_file",
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"encode_multipart",
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)
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BOUNDARY = "BoUnDaRyStRiNg"
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MULTIPART_CONTENT = "multipart/form-data; boundary=%s" % BOUNDARY
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CONTENT_TYPE_RE = _lazy_re_compile(r".*; charset=([\w-]+);?")
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# Structured suffix spec: https://tools.ietf.org/html/rfc6838#section-4.2.8
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JSON_CONTENT_TYPE_RE = _lazy_re_compile(r"^application\/(.+\+)?json")
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class RedirectCycleError(Exception):
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"""The test client has been asked to follow a redirect loop."""
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def __init__(self, message, last_response):
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super().__init__(message)
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self.last_response = last_response
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self.redirect_chain = last_response.redirect_chain
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class FakePayload:
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"""
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A wrapper around BytesIO that restricts what can be read since data from
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the network can't be sought and cannot be read outside of its content
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length. This makes sure that views can't do anything under the test client
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that wouldn't work in real life.
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"""
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def __init__(self, content=None):
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self.__content = BytesIO()
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self.__len = 0
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self.read_started = False
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if content is not None:
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self.write(content)
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def __len__(self):
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return self.__len
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def read(self, num_bytes=None):
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if not self.read_started:
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self.__content.seek(0)
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self.read_started = True
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if num_bytes is None:
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num_bytes = self.__len or 0
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assert (
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self.__len >= num_bytes
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), "Cannot read more than the available bytes from the HTTP incoming data."
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content = self.__content.read(num_bytes)
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self.__len -= num_bytes
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return content
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def write(self, content):
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if self.read_started:
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raise ValueError("Unable to write a payload after it's been read")
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content = force_bytes(content)
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self.__content.write(content)
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self.__len += len(content)
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def closing_iterator_wrapper(iterable, close):
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try:
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yield from iterable
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finally:
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request_finished.disconnect(close_old_connections)
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close() # will fire request_finished
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request_finished.connect(close_old_connections)
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def conditional_content_removal(request, response):
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"""
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Simulate the behavior of most web servers by removing the content of
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responses for HEAD requests, 1xx, 204, and 304 responses. Ensure
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compliance with RFC 7230, section 3.3.3.
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"""
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if 100 <= response.status_code < 200 or response.status_code in (204, 304):
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if response.streaming:
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response.streaming_content = []
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else:
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response.content = b""
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if request.method == "HEAD":
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if response.streaming:
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response.streaming_content = []
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else:
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response.content = b""
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return response
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class ClientHandler(BaseHandler):
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"""
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An HTTP Handler that can be used for testing purposes. Use the WSGI
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interface to compose requests, but return the raw HttpResponse object with
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the originating WSGIRequest attached to its ``wsgi_request`` attribute.
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"""
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def __init__(self, enforce_csrf_checks=True, *args, **kwargs):
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self.enforce_csrf_checks = enforce_csrf_checks
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super().__init__(*args, **kwargs)
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def __call__(self, environ):
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# Set up middleware if needed. We couldn't do this earlier, because
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# settings weren't available.
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if self._middleware_chain is None:
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self.load_middleware()
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request_started.disconnect(close_old_connections)
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request_started.send(sender=self.__class__, environ=environ)
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request_started.connect(close_old_connections)
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request = WSGIRequest(environ)
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# sneaky little hack so that we can easily get round
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# CsrfViewMiddleware. This makes life easier, and is probably
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# required for backwards compatibility with external tests against
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# admin views.
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request._dont_enforce_csrf_checks = not self.enforce_csrf_checks
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# Request goes through middleware.
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response = self.get_response(request)
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# Simulate behaviors of most web servers.
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conditional_content_removal(request, response)
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# Attach the originating request to the response so that it could be
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# later retrieved.
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response.wsgi_request = request
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# Emulate a WSGI server by calling the close method on completion.
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if response.streaming:
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response.streaming_content = closing_iterator_wrapper(
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response.streaming_content, response.close
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)
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else:
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request_finished.disconnect(close_old_connections)
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response.close() # will fire request_finished
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request_finished.connect(close_old_connections)
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return response
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class AsyncClientHandler(BaseHandler):
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"""An async version of ClientHandler."""
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def __init__(self, enforce_csrf_checks=True, *args, **kwargs):
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self.enforce_csrf_checks = enforce_csrf_checks
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super().__init__(*args, **kwargs)
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async def __call__(self, scope):
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# Set up middleware if needed. We couldn't do this earlier, because
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# settings weren't available.
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if self._middleware_chain is None:
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self.load_middleware(is_async=True)
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# Extract body file from the scope, if provided.
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if "_body_file" in scope:
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body_file = scope.pop("_body_file")
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else:
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body_file = FakePayload("")
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request_started.disconnect(close_old_connections)
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await sync_to_async(request_started.send, thread_sensitive=False)(
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sender=self.__class__, scope=scope
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)
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request_started.connect(close_old_connections)
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request = ASGIRequest(scope, body_file)
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# Sneaky little hack so that we can easily get round
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# CsrfViewMiddleware. This makes life easier, and is probably required
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# for backwards compatibility with external tests against admin views.
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request._dont_enforce_csrf_checks = not self.enforce_csrf_checks
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# Request goes through middleware.
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response = await self.get_response_async(request)
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# Simulate behaviors of most web servers.
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conditional_content_removal(request, response)
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# Attach the originating ASGI request to the response so that it could
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# be later retrieved.
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response.asgi_request = request
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# Emulate a server by calling the close method on completion.
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if response.streaming:
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response.streaming_content = await sync_to_async(
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closing_iterator_wrapper, thread_sensitive=False
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)(
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response.streaming_content,
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response.close,
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)
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else:
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request_finished.disconnect(close_old_connections)
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# Will fire request_finished.
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await sync_to_async(response.close, thread_sensitive=False)()
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request_finished.connect(close_old_connections)
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return response
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def store_rendered_templates(store, signal, sender, template, context, **kwargs):
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"""
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Store templates and contexts that are rendered.
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The context is copied so that it is an accurate representation at the time
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of rendering.
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"""
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store.setdefault("templates", []).append(template)
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if "context" not in store:
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store["context"] = ContextList()
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store["context"].append(copy(context))
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def encode_multipart(boundary, data):
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"""
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Encode multipart POST data from a dictionary of form values.
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The key will be used as the form data name; the value will be transmitted
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as content. If the value is a file, the contents of the file will be sent
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as an application/octet-stream; otherwise, str(value) will be sent.
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"""
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lines = []
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def to_bytes(s):
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return force_bytes(s, settings.DEFAULT_CHARSET)
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# Not by any means perfect, but good enough for our purposes.
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def is_file(thing):
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return hasattr(thing, "read") and callable(thing.read)
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# Each bit of the multipart form data could be either a form value or a
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# file, or a *list* of form values and/or files. Remember that HTTP field
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# names can be duplicated!
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for (key, value) in data.items():
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if value is None:
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raise TypeError(
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"Cannot encode None for key '%s' as POST data. Did you mean "
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"to pass an empty string or omit the value?" % key
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)
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elif is_file(value):
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lines.extend(encode_file(boundary, key, value))
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elif not isinstance(value, str) and is_iterable(value):
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for item in value:
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if is_file(item):
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lines.extend(encode_file(boundary, key, item))
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else:
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lines.extend(
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to_bytes(val)
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for val in [
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"--%s" % boundary,
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'Content-Disposition: form-data; name="%s"' % key,
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"",
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item,
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]
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)
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else:
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lines.extend(
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to_bytes(val)
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for val in [
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"--%s" % boundary,
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'Content-Disposition: form-data; name="%s"' % key,
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"",
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value,
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]
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)
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lines.extend(
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[
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to_bytes("--%s--" % boundary),
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b"",
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]
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)
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return b"\r\n".join(lines)
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def encode_file(boundary, key, file):
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def to_bytes(s):
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return force_bytes(s, settings.DEFAULT_CHARSET)
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|
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# file.name might not be a string. For example, it's an int for
|
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# tempfile.TemporaryFile().
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file_has_string_name = hasattr(file, "name") and isinstance(file.name, str)
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filename = os.path.basename(file.name) if file_has_string_name else ""
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if hasattr(file, "content_type"):
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content_type = file.content_type
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elif filename:
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content_type = mimetypes.guess_type(filename)[0]
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|
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else:
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content_type = None
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|
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||
|
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if content_type is None:
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content_type = "application/octet-stream"
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filename = filename or key
|
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return [
|
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|
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to_bytes("--%s" % boundary),
|
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|
|
to_bytes(
|
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'Content-Disposition: form-data; name="%s"; filename="%s"' % (key, filename)
|
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|
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),
|
||
|
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to_bytes("Content-Type: %s" % content_type),
|
||
|
|
b"",
|
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|
|
to_bytes(file.read()),
|
||
|
|
]
|
||
|
|
|
||
|
|
|
||
|
|
class RequestFactory:
|
||
|
|
"""
|
||
|
|
Class that lets you create mock Request objects for use in testing.
|
||
|
|
|
||
|
|
Usage:
|
||
|
|
|
||
|
|
rf = RequestFactory()
|
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|
|
get_request = rf.get('/hello/')
|
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|
|
post_request = rf.post('/submit/', {'foo': 'bar'})
|
||
|
|
|
||
|
|
Once you have a request object you can pass it to any view function,
|
||
|
|
just as if that view had been hooked up using a URLconf.
|
||
|
|
"""
|
||
|
|
|
||
|
|
def __init__(self, *, json_encoder=DjangoJSONEncoder, **defaults):
|
||
|
|
self.json_encoder = json_encoder
|
||
|
|
self.defaults = defaults
|
||
|
|
self.cookies = SimpleCookie()
|
||
|
|
self.errors = BytesIO()
|
||
|
|
|
||
|
|
def _base_environ(self, **request):
|
||
|
|
"""
|
||
|
|
The base environment for a request.
|
||
|
|
"""
|
||
|
|
# This is a minimal valid WSGI environ dictionary, plus:
|
||
|
|
# - HTTP_COOKIE: for cookie support,
|
||
|
|
# - REMOTE_ADDR: often useful, see #8551.
|
||
|
|
# See https://www.python.org/dev/peps/pep-3333/#environ-variables
|
||
|
|
return {
|
||
|
|
"HTTP_COOKIE": "; ".join(
|
||
|
|
sorted(
|
||
|
|
"%s=%s" % (morsel.key, morsel.coded_value)
|
||
|
|
for morsel in self.cookies.values()
|
||
|
|
)
|
||
|
|
),
|
||
|
|
"PATH_INFO": "/",
|
||
|
|
"REMOTE_ADDR": "127.0.0.1",
|
||
|
|
"REQUEST_METHOD": "GET",
|
||
|
|
"SCRIPT_NAME": "",
|
||
|
|
"SERVER_NAME": "testserver",
|
||
|
|
"SERVER_PORT": "80",
|
||
|
|
"SERVER_PROTOCOL": "HTTP/1.1",
|
||
|
|
"wsgi.version": (1, 0),
|
||
|
|
"wsgi.url_scheme": "http",
|
||
|
|
"wsgi.input": FakePayload(b""),
|
||
|
|
"wsgi.errors": self.errors,
|
||
|
|
"wsgi.multiprocess": True,
|
||
|
|
"wsgi.multithread": False,
|
||
|
|
"wsgi.run_once": False,
|
||
|
|
**self.defaults,
|
||
|
|
**request,
|
||
|
|
}
|
||
|
|
|
||
|
|
def request(self, **request):
|
||
|
|
"Construct a generic request object."
|
||
|
|
return WSGIRequest(self._base_environ(**request))
|
||
|
|
|
||
|
|
def _encode_data(self, data, content_type):
|
||
|
|
if content_type is MULTIPART_CONTENT:
|
||
|
|
return encode_multipart(BOUNDARY, data)
|
||
|
|
else:
|
||
|
|
# Encode the content so that the byte representation is correct.
|
||
|
|
match = CONTENT_TYPE_RE.match(content_type)
|
||
|
|
if match:
|
||
|
|
charset = match[1]
|
||
|
|
else:
|
||
|
|
charset = settings.DEFAULT_CHARSET
|
||
|
|
return force_bytes(data, encoding=charset)
|
||
|
|
|
||
|
|
def _encode_json(self, data, content_type):
|
||
|
|
"""
|
||
|
|
Return encoded JSON if data is a dict, list, or tuple and content_type
|
||
|
|
is application/json.
|
||
|
|
"""
|
||
|
|
should_encode = JSON_CONTENT_TYPE_RE.match(content_type) and isinstance(
|
||
|
|
data, (dict, list, tuple)
|
||
|
|
)
|
||
|
|
return json.dumps(data, cls=self.json_encoder) if should_encode else data
|
||
|
|
|
||
|
|
def _get_path(self, parsed):
|
||
|
|
path = parsed.path
|
||
|
|
# If there are parameters, add them
|
||
|
|
if parsed.params:
|
||
|
|
path += ";" + parsed.params
|
||
|
|
path = unquote_to_bytes(path)
|
||
|
|
# Replace the behavior where non-ASCII values in the WSGI environ are
|
||
|
|
# arbitrarily decoded with ISO-8859-1.
|
||
|
|
# Refs comment in `get_bytes_from_wsgi()`.
|
||
|
|
return path.decode("iso-8859-1")
|
||
|
|
|
||
|
|
def get(self, path, data=None, secure=False, **extra):
|
||
|
|
"""Construct a GET request."""
|
||
|
|
data = {} if data is None else data
|
||
|
|
return self.generic(
|
||
|
|
"GET",
|
||
|
|
path,
|
||
|
|
secure=secure,
|
||
|
|
**{
|
||
|
|
"QUERY_STRING": urlencode(data, doseq=True),
|
||
|
|
**extra,
|
||
|
|
},
|
||
|
|
)
|
||
|
|
|
||
|
|
def post(
|
||
|
|
self, path, data=None, content_type=MULTIPART_CONTENT, secure=False, **extra
|
||
|
|
):
|
||
|
|
"""Construct a POST request."""
|
||
|
|
data = self._encode_json({} if data is None else data, content_type)
|
||
|
|
post_data = self._encode_data(data, content_type)
|
||
|
|
|
||
|
|
return self.generic(
|
||
|
|
"POST", path, post_data, content_type, secure=secure, **extra
|
||
|
|
)
|
||
|
|
|
||
|
|
def head(self, path, data=None, secure=False, **extra):
|
||
|
|
"""Construct a HEAD request."""
|
||
|
|
data = {} if data is None else data
|
||
|
|
return self.generic(
|
||
|
|
"HEAD",
|
||
|
|
path,
|
||
|
|
secure=secure,
|
||
|
|
**{
|
||
|
|
"QUERY_STRING": urlencode(data, doseq=True),
|
||
|
|
**extra,
|
||
|
|
},
|
||
|
|
)
|
||
|
|
|
||
|
|
def trace(self, path, secure=False, **extra):
|
||
|
|
"""Construct a TRACE request."""
|
||
|
|
return self.generic("TRACE", path, secure=secure, **extra)
|
||
|
|
|
||
|
|
def options(
|
||
|
|
self,
|
||
|
|
path,
|
||
|
|
data="",
|
||
|
|
content_type="application/octet-stream",
|
||
|
|
secure=False,
|
||
|
|
**extra,
|
||
|
|
):
|
||
|
|
"Construct an OPTIONS request."
|
||
|
|
return self.generic("OPTIONS", path, data, content_type, secure=secure, **extra)
|
||
|
|
|
||
|
|
def put(
|
||
|
|
self,
|
||
|
|
path,
|
||
|
|
data="",
|
||
|
|
content_type="application/octet-stream",
|
||
|
|
secure=False,
|
||
|
|
**extra,
|
||
|
|
):
|
||
|
|
"""Construct a PUT request."""
|
||
|
|
data = self._encode_json(data, content_type)
|
||
|
|
return self.generic("PUT", path, data, content_type, secure=secure, **extra)
|
||
|
|
|
||
|
|
def patch(
|
||
|
|
self,
|
||
|
|
path,
|
||
|
|
data="",
|
||
|
|
content_type="application/octet-stream",
|
||
|
|
secure=False,
|
||
|
|
**extra,
|
||
|
|
):
|
||
|
|
"""Construct a PATCH request."""
|
||
|
|
data = self._encode_json(data, content_type)
|
||
|
|
return self.generic("PATCH", path, data, content_type, secure=secure, **extra)
|
||
|
|
|
||
|
|
def delete(
|
||
|
|
self,
|
||
|
|
path,
|
||
|
|
data="",
|
||
|
|
content_type="application/octet-stream",
|
||
|
|
secure=False,
|
||
|
|
**extra,
|
||
|
|
):
|
||
|
|
"""Construct a DELETE request."""
|
||
|
|
data = self._encode_json(data, content_type)
|
||
|
|
return self.generic("DELETE", path, data, content_type, secure=secure, **extra)
|
||
|
|
|
||
|
|
def generic(
|
||
|
|
self,
|
||
|
|
method,
|
||
|
|
path,
|
||
|
|
data="",
|
||
|
|
content_type="application/octet-stream",
|
||
|
|
secure=False,
|
||
|
|
**extra,
|
||
|
|
):
|
||
|
|
"""Construct an arbitrary HTTP request."""
|
||
|
|
parsed = urlparse(str(path)) # path can be lazy
|
||
|
|
data = force_bytes(data, settings.DEFAULT_CHARSET)
|
||
|
|
r = {
|
||
|
|
"PATH_INFO": self._get_path(parsed),
|
||
|
|
"REQUEST_METHOD": method,
|
||
|
|
"SERVER_PORT": "443" if secure else "80",
|
||
|
|
"wsgi.url_scheme": "https" if secure else "http",
|
||
|
|
}
|
||
|
|
if data:
|
||
|
|
r.update(
|
||
|
|
{
|
||
|
|
"CONTENT_LENGTH": str(len(data)),
|
||
|
|
"CONTENT_TYPE": content_type,
|
||
|
|
"wsgi.input": FakePayload(data),
|
||
|
|
}
|
||
|
|
)
|
||
|
|
r.update(extra)
|
||
|
|
# If QUERY_STRING is absent or empty, we want to extract it from the URL.
|
||
|
|
if not r.get("QUERY_STRING"):
|
||
|
|
# WSGI requires latin-1 encoded strings. See get_path_info().
|
||
|
|
query_string = parsed[4].encode().decode("iso-8859-1")
|
||
|
|
r["QUERY_STRING"] = query_string
|
||
|
|
return self.request(**r)
|
||
|
|
|
||
|
|
|
||
|
|
class AsyncRequestFactory(RequestFactory):
|
||
|
|
"""
|
||
|
|
Class that lets you create mock ASGI-like Request objects for use in
|
||
|
|
testing. Usage:
|
||
|
|
|
||
|
|
rf = AsyncRequestFactory()
|
||
|
|
get_request = await rf.get('/hello/')
|
||
|
|
post_request = await rf.post('/submit/', {'foo': 'bar'})
|
||
|
|
|
||
|
|
Once you have a request object you can pass it to any view function,
|
||
|
|
including synchronous ones. The reason we have a separate class here is:
|
||
|
|
a) this makes ASGIRequest subclasses, and
|
||
|
|
b) AsyncTestClient can subclass it.
|
||
|
|
"""
|
||
|
|
|
||
|
|
def _base_scope(self, **request):
|
||
|
|
"""The base scope for a request."""
|
||
|
|
# This is a minimal valid ASGI scope, plus:
|
||
|
|
# - headers['cookie'] for cookie support,
|
||
|
|
# - 'client' often useful, see #8551.
|
||
|
|
scope = {
|
||
|
|
"asgi": {"version": "3.0"},
|
||
|
|
"type": "http",
|
||
|
|
"http_version": "1.1",
|
||
|
|
"client": ["127.0.0.1", 0],
|
||
|
|
"server": ("testserver", "80"),
|
||
|
|
"scheme": "http",
|
||
|
|
"method": "GET",
|
||
|
|
"headers": [],
|
||
|
|
**self.defaults,
|
||
|
|
**request,
|
||
|
|
}
|
||
|
|
scope["headers"].append(
|
||
|
|
(
|
||
|
|
b"cookie",
|
||
|
|
b"; ".join(
|
||
|
|
sorted(
|
||
|
|
("%s=%s" % (morsel.key, morsel.coded_value)).encode("ascii")
|
||
|
|
for morsel in self.cookies.values()
|
||
|
|
)
|
||
|
|
),
|
||
|
|
)
|
||
|
|
)
|
||
|
|
return scope
|
||
|
|
|
||
|
|
def request(self, **request):
|
||
|
|
"""Construct a generic request object."""
|
||
|
|
# This is synchronous, which means all methods on this class are.
|
||
|
|
# AsyncClient, however, has an async request function, which makes all
|
||
|
|
# its methods async.
|
||
|
|
if "_body_file" in request:
|
||
|
|
body_file = request.pop("_body_file")
|
||
|
|
else:
|
||
|
|
body_file = FakePayload("")
|
||
|
|
return ASGIRequest(self._base_scope(**request), body_file)
|
||
|
|
|
||
|
|
def generic(
|
||
|
|
self,
|
||
|
|
method,
|
||
|
|
path,
|
||
|
|
data="",
|
||
|
|
content_type="application/octet-stream",
|
||
|
|
secure=False,
|
||
|
|
**extra,
|
||
|
|
):
|
||
|
|
"""Construct an arbitrary HTTP request."""
|
||
|
|
parsed = urlparse(str(path)) # path can be lazy.
|
||
|
|
data = force_bytes(data, settings.DEFAULT_CHARSET)
|
||
|
|
s = {
|
||
|
|
"method": method,
|
||
|
|
"path": self._get_path(parsed),
|
||
|
|
"server": ("127.0.0.1", "443" if secure else "80"),
|
||
|
|
"scheme": "https" if secure else "http",
|
||
|
|
"headers": [(b"host", b"testserver")],
|
||
|
|
}
|
||
|
|
if data:
|
||
|
|
s["headers"].extend(
|
||
|
|
[
|
||
|
|
(b"content-length", str(len(data)).encode("ascii")),
|
||
|
|
(b"content-type", content_type.encode("ascii")),
|
||
|
|
]
|
||
|
|
)
|
||
|
|
s["_body_file"] = FakePayload(data)
|
||
|
|
follow = extra.pop("follow", None)
|
||
|
|
if follow is not None:
|
||
|
|
s["follow"] = follow
|
||
|
|
if query_string := extra.pop("QUERY_STRING", None):
|
||
|
|
s["query_string"] = query_string
|
||
|
|
s["headers"] += [
|
||
|
|
(key.lower().encode("ascii"), value.encode("latin1"))
|
||
|
|
for key, value in extra.items()
|
||
|
|
]
|
||
|
|
# If QUERY_STRING is absent or empty, we want to extract it from the
|
||
|
|
# URL.
|
||
|
|
if not s.get("query_string"):
|
||
|
|
s["query_string"] = parsed[4]
|
||
|
|
return self.request(**s)
|
||
|
|
|
||
|
|
|
||
|
|
class ClientMixin:
|
||
|
|
"""
|
||
|
|
Mixin with common methods between Client and AsyncClient.
|
||
|
|
"""
|
||
|
|
|
||
|
|
def store_exc_info(self, **kwargs):
|
||
|
|
"""Store exceptions when they are generated by a view."""
|
||
|
|
self.exc_info = sys.exc_info()
|
||
|
|
|
||
|
|
def check_exception(self, response):
|
||
|
|
"""
|
||
|
|
Look for a signaled exception, clear the current context exception
|
||
|
|
data, re-raise the signaled exception, and clear the signaled exception
|
||
|
|
from the local cache.
|
||
|
|
"""
|
||
|
|
response.exc_info = self.exc_info
|
||
|
|
if self.exc_info:
|
||
|
|
_, exc_value, _ = self.exc_info
|
||
|
|
self.exc_info = None
|
||
|
|
if self.raise_request_exception:
|
||
|
|
raise exc_value
|
||
|
|
|
||
|
|
@property
|
||
|
|
def session(self):
|
||
|
|
"""Return the current session variables."""
|
||
|
|
engine = import_module(settings.SESSION_ENGINE)
|
||
|
|
cookie = self.cookies.get(settings.SESSION_COOKIE_NAME)
|
||
|
|
if cookie:
|
||
|
|
return engine.SessionStore(cookie.value)
|
||
|
|
session = engine.SessionStore()
|
||
|
|
session.save()
|
||
|
|
self.cookies[settings.SESSION_COOKIE_NAME] = session.session_key
|
||
|
|
return session
|
||
|
|
|
||
|
|
def login(self, **credentials):
|
||
|
|
"""
|
||
|
|
Set the Factory to appear as if it has successfully logged into a site.
|
||
|
|
|
||
|
|
Return True if login is possible or False if the provided credentials
|
||
|
|
are incorrect.
|
||
|
|
"""
|
||
|
|
from django.contrib.auth import authenticate
|
||
|
|
|
||
|
|
user = authenticate(**credentials)
|
||
|
|
if user:
|
||
|
|
self._login(user)
|
||
|
|
return True
|
||
|
|
return False
|
||
|
|
|
||
|
|
def force_login(self, user, backend=None):
|
||
|
|
def get_backend():
|
||
|
|
from django.contrib.auth import load_backend
|
||
|
|
|
||
|
|
for backend_path in settings.AUTHENTICATION_BACKENDS:
|
||
|
|
backend = load_backend(backend_path)
|
||
|
|
if hasattr(backend, "get_user"):
|
||
|
|
return backend_path
|
||
|
|
|
||
|
|
if backend is None:
|
||
|
|
backend = get_backend()
|
||
|
|
user.backend = backend
|
||
|
|
self._login(user, backend)
|
||
|
|
|
||
|
|
def _login(self, user, backend=None):
|
||
|
|
from django.contrib.auth import login
|
||
|
|
|
||
|
|
# Create a fake request to store login details.
|
||
|
|
request = HttpRequest()
|
||
|
|
if self.session:
|
||
|
|
request.session = self.session
|
||
|
|
else:
|
||
|
|
engine = import_module(settings.SESSION_ENGINE)
|
||
|
|
request.session = engine.SessionStore()
|
||
|
|
login(request, user, backend)
|
||
|
|
# Save the session values.
|
||
|
|
request.session.save()
|
||
|
|
# Set the cookie to represent the session.
|
||
|
|
session_cookie = settings.SESSION_COOKIE_NAME
|
||
|
|
self.cookies[session_cookie] = request.session.session_key
|
||
|
|
cookie_data = {
|
||
|
|
"max-age": None,
|
||
|
|
"path": "/",
|
||
|
|
"domain": settings.SESSION_COOKIE_DOMAIN,
|
||
|
|
"secure": settings.SESSION_COOKIE_SECURE or None,
|
||
|
|
"expires": None,
|
||
|
|
}
|
||
|
|
self.cookies[session_cookie].update(cookie_data)
|
||
|
|
|
||
|
|
def logout(self):
|
||
|
|
"""Log out the user by removing the cookies and session object."""
|
||
|
|
from django.contrib.auth import get_user, logout
|
||
|
|
|
||
|
|
request = HttpRequest()
|
||
|
|
if self.session:
|
||
|
|
request.session = self.session
|
||
|
|
request.user = get_user(request)
|
||
|
|
else:
|
||
|
|
engine = import_module(settings.SESSION_ENGINE)
|
||
|
|
request.session = engine.SessionStore()
|
||
|
|
logout(request)
|
||
|
|
self.cookies = SimpleCookie()
|
||
|
|
|
||
|
|
def _parse_json(self, response, **extra):
|
||
|
|
if not hasattr(response, "_json"):
|
||
|
|
if not JSON_CONTENT_TYPE_RE.match(response.get("Content-Type")):
|
||
|
|
raise ValueError(
|
||
|
|
'Content-Type header is "%s", not "application/json"'
|
||
|
|
% response.get("Content-Type")
|
||
|
|
)
|
||
|
|
response._json = json.loads(
|
||
|
|
response.content.decode(response.charset), **extra
|
||
|
|
)
|
||
|
|
return response._json
|
||
|
|
|
||
|
|
|
||
|
|
class Client(ClientMixin, RequestFactory):
|
||
|
|
"""
|
||
|
|
A class that can act as a client for testing purposes.
|
||
|
|
|
||
|
|
It allows the user to compose GET and POST requests, and
|
||
|
|
obtain the response that the server gave to those requests.
|
||
|
|
The server Response objects are annotated with the details
|
||
|
|
of the contexts and templates that were rendered during the
|
||
|
|
process of serving the request.
|
||
|
|
|
||
|
|
Client objects are stateful - they will retain cookie (and
|
||
|
|
thus session) details for the lifetime of the Client instance.
|
||
|
|
|
||
|
|
This is not intended as a replacement for Twill/Selenium or
|
||
|
|
the like - it is here to allow testing against the
|
||
|
|
contexts and templates produced by a view, rather than the
|
||
|
|
HTML rendered to the end-user.
|
||
|
|
"""
|
||
|
|
|
||
|
|
def __init__(
|
||
|
|
self, enforce_csrf_checks=False, raise_request_exception=True, **defaults
|
||
|
|
):
|
||
|
|
super().__init__(**defaults)
|
||
|
|
self.handler = ClientHandler(enforce_csrf_checks)
|
||
|
|
self.raise_request_exception = raise_request_exception
|
||
|
|
self.exc_info = None
|
||
|
|
self.extra = None
|
||
|
|
|
||
|
|
def request(self, **request):
|
||
|
|
"""
|
||
|
|
Make a generic request. Compose the environment dictionary and pass
|
||
|
|
to the handler, return the result of the handler. Assume defaults for
|
||
|
|
the query environment, which can be overridden using the arguments to
|
||
|
|
the request.
|
||
|
|
"""
|
||
|
|
environ = self._base_environ(**request)
|
||
|
|
|
||
|
|
# Curry a data dictionary into an instance of the template renderer
|
||
|
|
# callback function.
|
||
|
|
data = {}
|
||
|
|
on_template_render = partial(store_rendered_templates, data)
|
||
|
|
signal_uid = "template-render-%s" % id(request)
|
||
|
|
signals.template_rendered.connect(on_template_render, dispatch_uid=signal_uid)
|
||
|
|
# Capture exceptions created by the handler.
|
||
|
|
exception_uid = "request-exception-%s" % id(request)
|
||
|
|
got_request_exception.connect(self.store_exc_info, dispatch_uid=exception_uid)
|
||
|
|
try:
|
||
|
|
response = self.handler(environ)
|
||
|
|
finally:
|
||
|
|
signals.template_rendered.disconnect(dispatch_uid=signal_uid)
|
||
|
|
got_request_exception.disconnect(dispatch_uid=exception_uid)
|
||
|
|
# Check for signaled exceptions.
|
||
|
|
self.check_exception(response)
|
||
|
|
# Save the client and request that stimulated the response.
|
||
|
|
response.client = self
|
||
|
|
response.request = request
|
||
|
|
# Add any rendered template detail to the response.
|
||
|
|
response.templates = data.get("templates", [])
|
||
|
|
response.context = data.get("context")
|
||
|
|
response.json = partial(self._parse_json, response)
|
||
|
|
# Attach the ResolverMatch instance to the response.
|
||
|
|
urlconf = getattr(response.wsgi_request, "urlconf", None)
|
||
|
|
response.resolver_match = SimpleLazyObject(
|
||
|
|
lambda: resolve(request["PATH_INFO"], urlconf=urlconf),
|
||
|
|
)
|
||
|
|
# Flatten a single context. Not really necessary anymore thanks to the
|
||
|
|
# __getattr__ flattening in ContextList, but has some edge case
|
||
|
|
# backwards compatibility implications.
|
||
|
|
if response.context and len(response.context) == 1:
|
||
|
|
response.context = response.context[0]
|
||
|
|
# Update persistent cookie data.
|
||
|
|
if response.cookies:
|
||
|
|
self.cookies.update(response.cookies)
|
||
|
|
return response
|
||
|
|
|
||
|
|
def get(self, path, data=None, follow=False, secure=False, **extra):
|
||
|
|
"""Request a response from the server using GET."""
|
||
|
|
self.extra = extra
|
||
|
|
response = super().get(path, data=data, secure=secure, **extra)
|
||
|
|
if follow:
|
||
|
|
response = self._handle_redirects(response, data=data, **extra)
|
||
|
|
return response
|
||
|
|
|
||
|
|
def post(
|
||
|
|
self,
|
||
|
|
path,
|
||
|
|
data=None,
|
||
|
|
content_type=MULTIPART_CONTENT,
|
||
|
|
follow=False,
|
||
|
|
secure=False,
|
||
|
|
**extra,
|
||
|
|
):
|
||
|
|
"""Request a response from the server using POST."""
|
||
|
|
self.extra = extra
|
||
|
|
response = super().post(
|
||
|
|
path, data=data, content_type=content_type, secure=secure, **extra
|
||
|
|
)
|
||
|
|
if follow:
|
||
|
|
response = self._handle_redirects(
|
||
|
|
response, data=data, content_type=content_type, **extra
|
||
|
|
)
|
||
|
|
return response
|
||
|
|
|
||
|
|
def head(self, path, data=None, follow=False, secure=False, **extra):
|
||
|
|
"""Request a response from the server using HEAD."""
|
||
|
|
self.extra = extra
|
||
|
|
response = super().head(path, data=data, secure=secure, **extra)
|
||
|
|
if follow:
|
||
|
|
response = self._handle_redirects(response, data=data, **extra)
|
||
|
|
return response
|
||
|
|
|
||
|
|
def options(
|
||
|
|
self,
|
||
|
|
path,
|
||
|
|
data="",
|
||
|
|
content_type="application/octet-stream",
|
||
|
|
follow=False,
|
||
|
|
secure=False,
|
||
|
|
**extra,
|
||
|
|
):
|
||
|
|
"""Request a response from the server using OPTIONS."""
|
||
|
|
self.extra = extra
|
||
|
|
response = super().options(
|
||
|
|
path, data=data, content_type=content_type, secure=secure, **extra
|
||
|
|
)
|
||
|
|
if follow:
|
||
|
|
response = self._handle_redirects(
|
||
|
|
response, data=data, content_type=content_type, **extra
|
||
|
|
)
|
||
|
|
return response
|
||
|
|
|
||
|
|
def put(
|
||
|
|
self,
|
||
|
|
path,
|
||
|
|
data="",
|
||
|
|
content_type="application/octet-stream",
|
||
|
|
follow=False,
|
||
|
|
secure=False,
|
||
|
|
**extra,
|
||
|
|
):
|
||
|
|
"""Send a resource to the server using PUT."""
|
||
|
|
self.extra = extra
|
||
|
|
response = super().put(
|
||
|
|
path, data=data, content_type=content_type, secure=secure, **extra
|
||
|
|
)
|
||
|
|
if follow:
|
||
|
|
response = self._handle_redirects(
|
||
|
|
response, data=data, content_type=content_type, **extra
|
||
|
|
)
|
||
|
|
return response
|
||
|
|
|
||
|
|
def patch(
|
||
|
|
self,
|
||
|
|
path,
|
||
|
|
data="",
|
||
|
|
content_type="application/octet-stream",
|
||
|
|
follow=False,
|
||
|
|
secure=False,
|
||
|
|
**extra,
|
||
|
|
):
|
||
|
|
"""Send a resource to the server using PATCH."""
|
||
|
|
self.extra = extra
|
||
|
|
response = super().patch(
|
||
|
|
path, data=data, content_type=content_type, secure=secure, **extra
|
||
|
|
)
|
||
|
|
if follow:
|
||
|
|
response = self._handle_redirects(
|
||
|
|
response, data=data, content_type=content_type, **extra
|
||
|
|
)
|
||
|
|
return response
|
||
|
|
|
||
|
|
def delete(
|
||
|
|
self,
|
||
|
|
path,
|
||
|
|
data="",
|
||
|
|
content_type="application/octet-stream",
|
||
|
|
follow=False,
|
||
|
|
secure=False,
|
||
|
|
**extra,
|
||
|
|
):
|
||
|
|
"""Send a DELETE request to the server."""
|
||
|
|
self.extra = extra
|
||
|
|
response = super().delete(
|
||
|
|
path, data=data, content_type=content_type, secure=secure, **extra
|
||
|
|
)
|
||
|
|
if follow:
|
||
|
|
response = self._handle_redirects(
|
||
|
|
response, data=data, content_type=content_type, **extra
|
||
|
|
)
|
||
|
|
return response
|
||
|
|
|
||
|
|
def trace(self, path, data="", follow=False, secure=False, **extra):
|
||
|
|
"""Send a TRACE request to the server."""
|
||
|
|
self.extra = extra
|
||
|
|
response = super().trace(path, data=data, secure=secure, **extra)
|
||
|
|
if follow:
|
||
|
|
response = self._handle_redirects(response, data=data, **extra)
|
||
|
|
return response
|
||
|
|
|
||
|
|
def _handle_redirects(self, response, data="", content_type="", **extra):
|
||
|
|
"""
|
||
|
|
Follow any redirects by requesting responses from the server using GET.
|
||
|
|
"""
|
||
|
|
response.redirect_chain = []
|
||
|
|
redirect_status_codes = (
|
||
|
|
HTTPStatus.MOVED_PERMANENTLY,
|
||
|
|
HTTPStatus.FOUND,
|
||
|
|
HTTPStatus.SEE_OTHER,
|
||
|
|
HTTPStatus.TEMPORARY_REDIRECT,
|
||
|
|
HTTPStatus.PERMANENT_REDIRECT,
|
||
|
|
)
|
||
|
|
while response.status_code in redirect_status_codes:
|
||
|
|
response_url = response.url
|
||
|
|
redirect_chain = response.redirect_chain
|
||
|
|
redirect_chain.append((response_url, response.status_code))
|
||
|
|
|
||
|
|
url = urlsplit(response_url)
|
||
|
|
if url.scheme:
|
||
|
|
extra["wsgi.url_scheme"] = url.scheme
|
||
|
|
if url.hostname:
|
||
|
|
extra["SERVER_NAME"] = url.hostname
|
||
|
|
if url.port:
|
||
|
|
extra["SERVER_PORT"] = str(url.port)
|
||
|
|
|
||
|
|
path = url.path
|
||
|
|
# RFC 2616: bare domains without path are treated as the root.
|
||
|
|
if not path and url.netloc:
|
||
|
|
path = "/"
|
||
|
|
# Prepend the request path to handle relative path redirects
|
||
|
|
if not path.startswith("/"):
|
||
|
|
path = urljoin(response.request["PATH_INFO"], path)
|
||
|
|
|
||
|
|
if response.status_code in (
|
||
|
|
HTTPStatus.TEMPORARY_REDIRECT,
|
||
|
|
HTTPStatus.PERMANENT_REDIRECT,
|
||
|
|
):
|
||
|
|
# Preserve request method and query string (if needed)
|
||
|
|
# post-redirect for 307/308 responses.
|
||
|
|
request_method = response.request["REQUEST_METHOD"].lower()
|
||
|
|
if request_method not in ("get", "head"):
|
||
|
|
extra["QUERY_STRING"] = url.query
|
||
|
|
request_method = getattr(self, request_method)
|
||
|
|
else:
|
||
|
|
request_method = self.get
|
||
|
|
data = QueryDict(url.query)
|
||
|
|
content_type = None
|
||
|
|
|
||
|
|
response = request_method(
|
||
|
|
path, data=data, content_type=content_type, follow=False, **extra
|
||
|
|
)
|
||
|
|
response.redirect_chain = redirect_chain
|
||
|
|
|
||
|
|
if redirect_chain[-1] in redirect_chain[:-1]:
|
||
|
|
# Check that we're not redirecting to somewhere we've already
|
||
|
|
# been to, to prevent loops.
|
||
|
|
raise RedirectCycleError(
|
||
|
|
"Redirect loop detected.", last_response=response
|
||
|
|
)
|
||
|
|
if len(redirect_chain) > 20:
|
||
|
|
# Such a lengthy chain likely also means a loop, but one with
|
||
|
|
# a growing path, changing view, or changing query argument;
|
||
|
|
# 20 is the value of "network.http.redirection-limit" from Firefox.
|
||
|
|
raise RedirectCycleError("Too many redirects.", last_response=response)
|
||
|
|
|
||
|
|
return response
|
||
|
|
|
||
|
|
|
||
|
|
class AsyncClient(ClientMixin, AsyncRequestFactory):
|
||
|
|
"""
|
||
|
|
An async version of Client that creates ASGIRequests and calls through an
|
||
|
|
async request path.
|
||
|
|
|
||
|
|
Does not currently support "follow" on its methods.
|
||
|
|
"""
|
||
|
|
|
||
|
|
def __init__(
|
||
|
|
self, enforce_csrf_checks=False, raise_request_exception=True, **defaults
|
||
|
|
):
|
||
|
|
super().__init__(**defaults)
|
||
|
|
self.handler = AsyncClientHandler(enforce_csrf_checks)
|
||
|
|
self.raise_request_exception = raise_request_exception
|
||
|
|
self.exc_info = None
|
||
|
|
self.extra = None
|
||
|
|
|
||
|
|
async def request(self, **request):
|
||
|
|
"""
|
||
|
|
Make a generic request. Compose the scope dictionary and pass to the
|
||
|
|
handler, return the result of the handler. Assume defaults for the
|
||
|
|
query environment, which can be overridden using the arguments to the
|
||
|
|
request.
|
||
|
|
"""
|
||
|
|
if "follow" in request:
|
||
|
|
raise NotImplementedError(
|
||
|
|
"AsyncClient request methods do not accept the follow parameter."
|
||
|
|
)
|
||
|
|
scope = self._base_scope(**request)
|
||
|
|
# Curry a data dictionary into an instance of the template renderer
|
||
|
|
# callback function.
|
||
|
|
data = {}
|
||
|
|
on_template_render = partial(store_rendered_templates, data)
|
||
|
|
signal_uid = "template-render-%s" % id(request)
|
||
|
|
signals.template_rendered.connect(on_template_render, dispatch_uid=signal_uid)
|
||
|
|
# Capture exceptions created by the handler.
|
||
|
|
exception_uid = "request-exception-%s" % id(request)
|
||
|
|
got_request_exception.connect(self.store_exc_info, dispatch_uid=exception_uid)
|
||
|
|
try:
|
||
|
|
response = await self.handler(scope)
|
||
|
|
finally:
|
||
|
|
signals.template_rendered.disconnect(dispatch_uid=signal_uid)
|
||
|
|
got_request_exception.disconnect(dispatch_uid=exception_uid)
|
||
|
|
# Check for signaled exceptions.
|
||
|
|
self.check_exception(response)
|
||
|
|
# Save the client and request that stimulated the response.
|
||
|
|
response.client = self
|
||
|
|
response.request = request
|
||
|
|
# Add any rendered template detail to the response.
|
||
|
|
response.templates = data.get("templates", [])
|
||
|
|
response.context = data.get("context")
|
||
|
|
response.json = partial(self._parse_json, response)
|
||
|
|
# Attach the ResolverMatch instance to the response.
|
||
|
|
urlconf = getattr(response.asgi_request, "urlconf", None)
|
||
|
|
response.resolver_match = SimpleLazyObject(
|
||
|
|
lambda: resolve(request["path"], urlconf=urlconf),
|
||
|
|
)
|
||
|
|
# Flatten a single context. Not really necessary anymore thanks to the
|
||
|
|
# __getattr__ flattening in ContextList, but has some edge case
|
||
|
|
# backwards compatibility implications.
|
||
|
|
if response.context and len(response.context) == 1:
|
||
|
|
response.context = response.context[0]
|
||
|
|
# Update persistent cookie data.
|
||
|
|
if response.cookies:
|
||
|
|
self.cookies.update(response.cookies)
|
||
|
|
return response
|