ccx-crossorg-217

ccx-crossorg-217_59b6cb | Trial: ccx-crossorg-217__HyEB5EE | Score: 0.1000

Task Information

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# Django vs Flask Middleware Chain Implementation Comparison

## Your Task

Find Python source files in django/django that implement Django's MIDDLEWARE setting processing: the middleware stack construction, the process_request/process_response calling order, and how Django's middleware compares to WSGI middleware stacking in terms of call order.

## Context

You are working on a codebase task involving repos from the crossorg domain.

## Available Resources

## Output Format

Use the published task contract:

- `TASK_WORKDIR=/workspace`
- `TASK_REPO_ROOT=/workspace`
- `TASK_OUTPUT=/workspace/answer.json`

Create a file at `TASK_OUTPUT` (`/workspace/answer.json`) with your findings in the following structure:

```json
{
  "files": [
    {"repo": "org/repo-name", "path": "relative/path/to/file.go"}
  ],
  "symbols": [
    {"repo": "org/repo-name", "path": "relative/path/to/file.go", "symbol": "SymbolName"}
  ],
  "chain": [
    {"repo": "org/repo-name", "path": "relative/path/to/file.go", "symbol": "FunctionName"}
  ],
  "text": "Narrative explanation of your findings, citing repos and file paths."
}
```

Include only the fields relevant to this task. Your answer is evaluated against a closed-world oracle — completeness matters.

## Evaluation

Your answer will be scored on:
- **File recall and precision**: Did you find all relevant files?

Execution Metrics

Reward

0.1000

Status

passed

Config

ccx-crossorg-217_59b6cb

Model

anthropic/claude-fable-5

Agent Time

1.6m

Env Setup

3.0m

Input Tokens

493,061

Output Tokens

18,003

Cache Tokens

487,221

Cost

$1.12

Tool Calls

9 (0 MCP)

MCP Ratio

0.000

Context Peak

22%

Cache Hit

87%

Turns

Timed Out

Tool Breakdown

Tool	Calls
`Bash`	4
`Read`	4
`Write`	1

Agent Trace

Conversation History (25)



I'll explore the workspace to find the Django repo and relevant middleware files.

django--674eda1c

AUTHORS
CONTRIBUTING.rst
Gruntfile.js
INSTALL
LICENSE
LICENSE.python
MANIFEST.in
README.rst
django
docs
eslint-recommended.js
eslint.config.mjs
extras
globals.js
js_tests
package.json
pyproject.toml
scripts
tests
tox.ini
zizmor.yml

/workspace/django--674eda1c/django/utils/deprecation.py

/workspace/django--674eda1c/django/core/handlers/:
__init__.py
asgi.py
base.py
exception.py
wsgi.py

/workspace/django--674eda1c/django/middleware/:
__init__.py
cache.py
clickjacking.py
common.py
csp.py
csrf.py
gzip.py
http.py
locale.py
security.py

1	import asyncio
2	import logging
3	import types
4	from inspect import iscoroutinefunction
5	
6	from asgiref.sync import async_to_sync, sync_to_async
7	
8	from django.conf import settings
9	from django.core.exceptions import ImproperlyConfigured, MiddlewareNotUsed
10	from django.core.signals import request_finished
11	from django.db import connections, transaction
12	from django.urls import get_resolver, set_urlconf
13	from django.utils.log import log_response
14	from django.utils.module_loading import import_string
15	
16	from .exception import convert_exception_to_response
17	
18	logger = logging.getLogger("django.request")
19	
20	
21	class BaseHandler:
22	    _view_middleware = None
23	    _template_response_middleware = None
24	    _exception_middleware = None
25	    _middleware_chain = None
26	
27	    def load_middleware(self, is_async=False):
28	        """
29	        Populate middleware lists from settings.MIDDLEWARE.
30	
31	        Must be called after the environment is fixed (see __call__ in
32	        subclasses).
33	        """
34	        self._view_middleware = []
35	        self._template_response_middleware = []
36	        self._exception_middleware = []
37	
38	        get_response = self._get_response_async if is_async else self._get_response
39	        handler = convert_exception_to_response(get_response)
40	        handler_is_async = is_async
41	        for middleware_path in reversed(settings.MIDDLEWARE):
42	            middleware = import_string(middleware_path)
43	            middleware_can_sync = getattr(middleware, "sync_capable", True)
44	            middleware_can_async = getattr(middleware, "async_capable", False)
45	            if not middleware_can_sync and not middleware_can_async:
46	                raise RuntimeError(
47	                    "Middleware %s must have at least one of "
48	                    "sync_capable/async_capable set to True." % middleware_path
49	                )
50	            elif not handler_is_async and middleware_can_sync:
51	                middleware_is_async = False
52	            else:
53	                middleware_is_async = middleware_can_async
54	            try:
55	                # Adapt handler, if needed.
56	                adapted_handler = self.adapt_method_mode(
57	                    middleware_is_async,
58	                    handler,
59	                    handler_is_async,
60	                    debug=settings.DEBUG,
61	                    name="middleware %s" % middleware_path,
62	                )
63	                mw_instance = middleware(adapted_handler)
64	            except MiddlewareNotUsed as exc:
65	                if settings.DEBUG:
66	                    if str(exc):
67	                        logger.debug("MiddlewareNotUsed(%r): %s", middleware_path, exc)
68	                    else:
69	                        logger.debug("MiddlewareNotUsed: %r", middleware_path)
70	                continue
71	            else:
72	                handler = adapted_handler
73	
74	            if mw_instance is None:
75	                raise ImproperlyConfigured(
76	                    "Middleware factory %s returned None." % middleware_path
77	                )
78	
79	            if hasattr(mw_instance, "process_view"):
80	                self._view_middleware.insert(
81	                    0,
82	                    self.adapt_method_mode(is_async, mw_instance.process_view),
83	                )
84	            if hasattr(mw_instance, "process_template_response"):
85	                self._template_response_middleware.append(
86	                    self.adapt_method_mode(
87	                        is_async, mw_instance.process_template_response
88	                    ),
89	                )
90	            if hasattr(mw_instance, "process_exception"):
91	                # The exception-handling stack is still always synchronous for
92	                # now, so adapt that way.
93	                self._exception_middleware.append(
94	                    self.ad...

1	import functools
2	import inspect
3	import os
4	import warnings
5	from collections import Counter
6	from inspect import iscoroutinefunction, markcoroutinefunction
7	
8	from asgiref.sync import sync_to_async
9	
10	import django
11	
12	
13	@functools.cache
14	def django_file_prefixes():
15	    try:
16	        file = django.__file__
17	    except AttributeError:
18	        return ()
19	    return (os.path.dirname(file),)
20	
21	
22	class RemovedInNextVersionWarning(DeprecationWarning):
23	    pass
24	
25	
26	class RemovedInDjango70Warning(PendingDeprecationWarning):
27	    pass
28	
29	
30	RemovedAfterNextVersionWarning = RemovedInDjango70Warning
31	
32	
33	class warn_about_renamed_method:
34	    def __init__(
35	        self, class_name, old_method_name, new_method_name, deprecation_warning
36	    ):
37	        self.class_name = class_name
38	        self.old_method_name = old_method_name
39	        self.new_method_name = new_method_name
40	        self.deprecation_warning = deprecation_warning
41	
42	    def __call__(self, f):
43	        def wrapper(*args, **kwargs):
44	            warnings.warn(
45	                "`%s.%s` is deprecated, use `%s` instead."
46	                % (self.class_name, self.old_method_name, self.new_method_name),
47	                self.deprecation_warning,
48	                2,
49	            )
50	            return f(*args, **kwargs)
51	
52	        return wrapper
53	
54	
55	class RenameMethodsBase(type):
56	    """
57	    Handles the deprecation paths when renaming a method.
58	
59	    It does the following:
60	        1) Define the new method if missing and complain about it.
61	        2) Define the old method if missing.
62	        3) Complain whenever an old method is called.
63	
64	    See #15363 for more details.
65	    """
66	
67	    renamed_methods = ()
68	
69	    def __new__(cls, name, bases, attrs):
70	        new_class = super().__new__(cls, name, bases, attrs)
71	
72	        for base in inspect.getmro(new_class):
73	            class_name = base.__name__
74	            for renamed_method in cls.renamed_methods:
75	                old_method_name = renamed_method[0]
76	                old_method = base.__dict__.get(old_method_name)
77	                new_method_name = renamed_method[1]
78	                new_method = base.__dict__.get(new_method_name)
79	                deprecation_warning = renamed_method[2]
80	                wrapper = warn_about_renamed_method(class_name, *renamed_method)
81	
82	                # Define the new method if missing and complain about it
83	                if not new_method and old_method:
84	                    warnings.warn(
85	                        "`%s.%s` method should be renamed `%s`."
86	                        % (class_name, old_method_name, new_method_name),
87	                        deprecation_warning,
88	                        2,
89	                    )
90	                    setattr(base, new_method_name, old_method)
91	                    setattr(base, old_method_name, wrapper(old_method))
92	
93	                # Define the old method as a wrapped call to the new method.
94	                if not old_method and new_method:
95	                    setattr(base, old_method_name, wrapper(new_method))
96	
97	        return new_class
98	
99	
100	def deprecate_posargs(deprecation_warning, remappable_names, /):
101	    """
102	    Function/method decorator to deprecate some or all positional arguments.
103	
104	    The decorated function will map any positional arguments after the ``*`` to
105	    the corresponding keyword arguments and issue a deprecation warning.
106	
107	    The decorator takes two arguments: a RemovedInDjangoXXWarning warning
108	    category and a list of parameter names that have been changed from
109	    positional-or-keyword to keyword-only, in their original positional order.
110	
111	    Works on both functions and methods. To apply to a class constructor,
112	    decorate its __init__() method. To apply to a staticm...

1	from io import IOBase
2	
3	from django.conf import settings
4	from django.core import signals
5	from django.core.handlers import base
6	from django.http import HttpRequest, QueryDict, parse_cookie
7	from django.urls import set_script_prefix
8	from django.utils.encoding import repercent_broken_unicode
9	from django.utils.functional import cached_property
10	from django.utils.regex_helper import _lazy_re_compile
11	
12	_slashes_re = _lazy_re_compile(rb"/+")
13	
14	
15	class LimitedStream(IOBase):
16	    """
17	    Wrap another stream to disallow reading it past a number of bytes.
18	
19	    Based on the implementation from werkzeug.wsgi.LimitedStream. See:
20	    https://github.com/pallets/werkzeug/blob/dbf78f67/src/werkzeug/wsgi.py#L828
21	    """
22	
23	    def __init__(self, stream, limit):
24	        self._read = stream.read
25	        self._readline = stream.readline
26	        self._pos = 0
27	        self.limit = limit
28	
29	    def read(self, size=-1, /):
30	        _pos = self._pos
31	        limit = self.limit
32	        if _pos >= limit:
33	            return b""
34	        if size == -1 or size is None:
35	            size = limit - _pos
36	        else:
37	            size = min(size, limit - _pos)
38	        data = self._read(size)
39	        self._pos += len(data)
40	        return data
41	
42	    def readline(self, size=-1, /):
43	        _pos = self._pos
44	        limit = self.limit
45	        if _pos >= limit:
46	            return b""
47	        if size == -1 or size is None:
48	            size = limit - _pos
49	        else:
50	            size = min(size, limit - _pos)
51	        line = self._readline(size)
52	        self._pos += len(line)
53	        return line
54	
55	
56	class WSGIRequest(HttpRequest):
57	    def __init__(self, environ):
58	        script_name = get_script_name(environ)
59	        # If PATH_INFO is empty (e.g. accessing the SCRIPT_NAME URL without a
60	        # trailing slash), operate as if '/' was requested.
61	        path_info = get_path_info(environ) or "/"
62	        self.environ = environ
63	        self.path_info = path_info
64	        # be careful to only replace the first slash in the path because of
65	        # http://test/something and http://test//something being different as
66	        # stated in RFC 3986.
67	        self.path = "%s/%s" % (script_name.rstrip("/"), path_info.replace("/", "", 1))
68	        self.META = environ
69	        self.META["PATH_INFO"] = path_info
70	        self.META["SCRIPT_NAME"] = script_name
71	        self.method = environ["REQUEST_METHOD"].upper()
72	        # Set content_type, content_params, and encoding.
73	        self._set_content_type_params(environ)
74	        try:
75	            content_length = int(environ.get("CONTENT_LENGTH"))
76	        except (ValueError, TypeError):
77	            content_length = 0
78	        self._stream = LimitedStream(self.environ["wsgi.input"], content_length)
79	        self._read_started = False
80	        self.resolver_match = None
81	
82	    def _get_scheme(self):
83	        return self.environ.get("wsgi.url_scheme")
84	
85	    @cached_property
86	    def GET(self):
87	        # The WSGI spec says 'QUERY_STRING' may be absent.
88	        raw_query_string = get_bytes_from_wsgi(self.environ, "QUERY_STRING", "")
89	        return QueryDict(raw_query_string, encoding=self._encoding)
90	
91	    def _get_post(self):
92	        if not hasattr(self, "_post"):
93	            self._load_post_and_files()
94	        return self._post
95	
96	    def _set_post(self, post):
97	        self._post = post
98	
99	    @cached_property
100	    def COOKIES(self):
101	        raw_cookie = get_str_from_wsgi(self.environ, "HTTP_COOKIE", "")
102	        return parse_cookie(raw_cookie)
103	
104	    @property
105	    def FILES(self):
106	        if not hasattr(self, "_files"):
107	            self._load_post_and_files()
108	        return self._files
109	
110	    POST = property(_get_post, _set_post)
111	
112	
113	class WSGIH...

1	import logging
2	import sys
3	from functools import wraps
4	from inspect import iscoroutinefunction
5	
6	from asgiref.sync import sync_to_async
7	
8	from django.conf import settings
9	from django.core import signals
10	from django.core.exceptions import (
11	    BadRequest,
12	    PermissionDenied,
13	    RequestDataTooBig,
14	    SuspiciousOperation,
15	    TooManyFieldsSent,
16	    TooManyFilesSent,
17	)
18	from django.http import Http404
19	from django.http.multipartparser import MultiPartParserError
20	from django.urls import get_resolver, get_urlconf
21	from django.utils.log import log_response
22	from django.views import debug
23	
24	
25	def convert_exception_to_response(get_response):
26	    """
27	    Wrap the given get_response callable in exception-to-response conversion.
28	
29	    All exceptions will be converted. All known 4xx exceptions (Http404,
30	    PermissionDenied, MultiPartParserError, SuspiciousOperation) will be
31	    converted to the appropriate response, and all other exceptions will be
32	    converted to 500 responses.
33	
34	    This decorator is automatically applied to all middleware to ensure that
35	    no middleware leaks an exception and that the next middleware in the stack
36	    can rely on getting a response instead of an exception.
37	    """
38	    if iscoroutinefunction(get_response):
39	
40	        @wraps(get_response)
41	        async def inner(request):
42	            try:
43	                response = await get_response(request)
44	            except Exception as exc:
45	                response = await sync_to_async(
46	                    response_for_exception, thread_sensitive=False
47	                )(request, exc)
48	            return response
49	
50	        return inner
51	    else:
52	
53	        @wraps(get_response)
54	        def inner(request):
55	            try:
56	                response = get_response(request)
57	            except Exception as exc:
58	                response = response_for_exception(request, exc)
59	            return response
60	
61	        return inner
62	
63	
64	def response_for_exception(request, exc):
65	    if isinstance(exc, Http404):
66	        if settings.DEBUG:
67	            response = debug.technical_404_response(request, exc)
68	        else:
69	            response = get_exception_response(
70	                request, get_resolver(get_urlconf()), 404, exc
71	            )
72	
73	    elif isinstance(exc, PermissionDenied):
74	        response = get_exception_response(
75	            request, get_resolver(get_urlconf()), 403, exc
76	        )
77	        log_response(
78	            "Forbidden (Permission denied): %s",
79	            request.path,
80	            response=response,
81	            request=request,
82	            exception=exc,
83	        )
84	
85	    elif isinstance(exc, MultiPartParserError):
86	        response = get_exception_response(
87	            request, get_resolver(get_urlconf()), 400, exc
88	        )
89	        log_response(
90	            "Bad request (Unable to parse request body): %s",
91	            request.path,
92	            response=response,
93	            request=request,
94	            exception=exc,
95	        )
96	
97	    elif isinstance(exc, BadRequest):
98	        if settings.DEBUG:
99	            response = debug.technical_500_response(
100	                request, *sys.exc_info(), status_code=400
101	            )
102	        else:
103	            response = get_exception_response(
104	                request, get_resolver(get_urlconf()), 400, exc
105	            )
106	        log_response(
107	            "%s: %s",
108	            str(exc),
109	            request.path,
110	            response=response,
111	            request=request,
112	            exception=exc,
113	        )
114	    elif isinstance(exc, SuspiciousOperation):
115	        if isinstance(exc, (RequestDataTooBig, TooManyFieldsSent, TooManyFilesSent)):
116	            # POST data can't be accessed again, otherwise the ori...
Now let me check the MIDDLEWARE setting default and `get_wsgi_application`.



465:# MIDDLEWARE #
471:MIDDLEWARE = []
516:CACHE_MIDDLEWARE_KEY_PREFIX = ""
517:CACHE_MIDDLEWARE_SECONDS = 600
518:CACHE_MIDDLEWARE_ALIAS = "default"
654:# SECURITY MIDDLEWARE #
667:# CSP MIDDLEWARE #
---
import django
from django.core.handlers.wsgi import WSGIHandler


def get_wsgi_application():
    """
    The public interface to Django's WSGI support. Return a WSGI callable.

    Avoids making django.core.handlers.WSGIHandler a public API, in case the
    internal WSGI implementation changes or moves in the future.
    """
    django.setup(set_prefix=False)
    return WSGIHandler()
---
/workspace/django--674eda1c/django/contrib/admindocs/middleware.py:4:from django.utils.deprecation import MiddlewareMixin
/workspace/django--674eda1c/django/contrib/admindocs/middleware.py:9:class XViewMiddleware(MiddlewareMixin):
/workspace/django--674eda1c/django/contrib/auth/middleware.py:12:from django.utils.deprecation import MiddlewareMixin
/workspace/django--674eda1c/django/contrib/auth/middleware.py:28:class AuthenticationMiddleware(MiddlewareMixin):
/workspace/django--674eda1c/django/contrib/auth/middleware.py:42:class LoginRequiredMiddleware(MiddlewareMixin):
/workspace/django--674eda1c/django/contrib/flatpages/middleware.py:4:from django.utils.deprecation import MiddlewareMixin
/workspace/django--674eda1c/django/contrib/flatpages/middleware.py:7:class FlatpageFallbackMiddleware(MiddlewareMixin):
/workspace/django--674eda1c/django/contrib/messages/middleware.py:3:from django.utils.deprecation import MiddlewareMixin
/workspace/django--674eda1c/django/contrib/messages/middleware.py:6:class MessageMiddleware(MiddlewareMixin):
/workspace/django--674eda1c/django/contrib/redirects/middleware.py:7:from django.utils.deprecation import MiddlewareMixin
/workspace/django--674eda1c/django/contrib/redirects/middleware.py:10:class RedirectFallbackMiddleware(MiddlewareMixin):
/workspace/django--674eda1c/django/contrib/sessions/middleware.py:8:from django.utils.deprecation import MiddlewareMixin
/workspace/django--674eda1c/django/contrib/sessions/middleware.py:12:class SessionMiddleware(MiddlewareMixin):
/workspace/django--674eda1c/django/contrib/sites/middleware.py:1:from django.utils.deprecation import MiddlewareMixin
/workspace/django--674eda1c/django/contrib/sites/middleware.py:6:class CurrentSiteMiddleware(MiddlewareMixin):
/workspace/django--674eda1c/django/contrib/staticfiles/handlers.py:24:    def load_middleware(self):
/workspace/django--674eda1c/django/core/handlers/asgi.py:152:        self.load_middleware(is_async=True)
/workspace/django--674eda1c/django/core/handlers/base.py:27:    def load_middleware(self, is_async=False):
/workspace/django--674eda1c/django/core/handlers/wsgi.py:118:        self.load_middleware()
/workspace/django--674eda1c/django/test/client.py:173:            self.load_middleware()
/workspace/django--674eda1c/django/test/client.py:224:            self.load_middleware(is_async=True)
/workspace/django--674eda1c/django/utils/deprecation.py:275:class MiddlewareMixin:
I have all the pieces. Writing the answer file now.

File created successfully at: /workspace/answer.json (file state is current in your context — no need to Read it back)
Done — `/workspace/answer.json` is written. Here's the TLDR of what I found in the django/django checkout at `/workspace/django--674eda1c`:

**Core files implementing MIDDLEWARE processing:**

- `django/core/handlers/base.py` — `BaseHandler.load_middleware()` is the stack builder. It iterates `reversed(settings.MIDDLEWARE)`, instantiating each middleware around the previous handler (`mw_instance = middleware(handler)`), so the **first** entry in the settings list becomes the **outermost** layer. The result is stored as `_middleware_chain`. The same loop collects `process_view` hooks in forward order (`insert(0, ...)`) and `process_template_response`/`process_exception` hooks in reverse order (`append`). `_get_response()` is the innermost layer that runs view middleware and the view itself.
- `django/utils/deprecation.py` — `MiddlewareMixin.__call__` defines the classic hook ordering: `process_request(request)` on the way in (short-circuiting if it returns a response), then `self.get_response(request)`, then `process_response(request, response)` on the way out. Combined with the reversed construction, `process_request` runs top-to-bottom and `process_response` bottom-to-top of the settings list.
- `django/core/handlers/exception.py` — `convert_exception_to_response()` wraps every layer so no middleware leaks exceptions.
- `django/core/handlers/wsgi.py` + `django/core/wsgi.py` — `WSGIHandler.__init__` calls `load_middleware()`; its `__call__(environ, start_response)` is the single WSGI callable that invokes the whole Django onion. `django/core/handlers/asgi.py` is the async twin (`load_middleware(is_async=True)`).
- `django/conf/global_settings.py` — declares the default `MIDDLEWARE = []` setting.

**WSGI comparison:** Django's chain is functionally the same onion as WSGI's `MiddlewareA(MiddlewareB(app))` wrapping — `load_middleware` just builds the nesting from a declarative flat list (reversed so list order = outer-to-inner), operates on `HttpRequest`/`HttpResponse` instead of `environ`/`start_response`, and adds phase hooks and per-layer exception conversion that raw WSGI stacking lacks. Flask itself isn't in the workspace; it uses the plain WSGI wrapping pattern (`app.wsgi_app = MW(app.wsgi_app)`), which is the WSGI side of that comparison.

#	Timestamp	Type	Subtype	Tool	Text
1	-	system	init	`-`
2	-	assistant	text	`-`	I'll explore the workspace to find the Django repo and relevant middleware files.
3	-	assistant	tool_use	`Bash`
4	2026-06-12T17:32:29.804Z	user	tool_result	`Bash`	django--674eda1c
5	-	assistant	tool_use	`Bash`
6	2026-06-12T17:32:33.168Z	user	tool_result	`Bash`	AUTHORS CONTRIBUTING.rst Gruntfile.js INSTALL LICENSE LICENSE.python MANIFEST.in README.rst django docs eslint-recommended.js eslint.config.mjs extras globals.js js_tests package.json pyproject.toml scripts tests tox.ini zizmor.yml
7	-	assistant	tool_use	`Bash`
8	2026-06-12T17:32:37.483Z	user	tool_result	`Bash`	/workspace/django--674eda1c/django/utils/deprecation.py /workspace/django--674eda1c/django/core/handlers/: __init__.py asgi.py base.py exception.py wsgi.py /workspace/django--674eda1c/django/middleware/: __init__.py cache.py clickjacking.py common.py csp.py csrf.py gzip.py http.py locale.py security.py
9	-	assistant	tool_use	`Read`
10	2026-06-12T17:32:41.008Z	user	tool_result	`Read`	1 import asyncio 2 import logging 3 import types 4 from inspect import iscoroutinefunction 5 6 from asgiref.sync import async_to_sync, sync_to_async 7 8 from django.conf import settings 9 from django.core.exceptions import ImproperlyConfigured, MiddlewareNotUsed 10 from django.core.signals import request_finished 11 from django.db import connections, transaction 12 from django.urls import get_resolver, set_urlconf 13 from django.utils.log import log_response 14 from django.utils.module_loading import import_string 15 16 from .exception import convert_exception_to_response 17 18 logger = logging.getLogger("django.request") 19 20 21 class BaseHandler: 22 _view_middleware = None 23 _template_response_middleware = None 24 _exception_middleware = None 25 _middleware_chain = None 26 27 def load_middleware(self, is_async=False): 28 """ 29 Populate middleware lists from settings.MIDDLEWARE. 30 31 Must be called after the environment is fixed (see __call__ in 32 subclasses). 33 """ 34 self._view_middleware = [] 35 self._template_response_middleware = [] 36 self._exception_middleware = [] 37 38 get_response = self._get_response_async if is_async else self._get_response 39 handler = convert_exception_to_response(get_response) 40 handler_is_async = is_async 41 for middleware_path in reversed(settings.MIDDLEWARE): 42 middleware = import_string(middleware_path) 43 middleware_can_sync = getattr(middleware, "sync_capable", True) 44 middleware_can_async = getattr(middleware, "async_capable", False) 45 if not middleware_can_sync and not middleware_can_async: 46 raise RuntimeError( 47 "Middleware %s must have at least one of " 48 "sync_capable/async_capable set to True." % middleware_path 49 ) 50 elif not handler_is_async and middleware_can_sync: 51 middleware_is_async = False 52 else: 53 middleware_is_async = middleware_can_async 54 try: 55 # Adapt handler, if needed. 56 adapted_handler = self.adapt_method_mode( 57 middleware_is_async, 58 handler, 59 handler_is_async, 60 debug=settings.DEBUG, 61 name="middleware %s" % middleware_path, 62 ) 63 mw_instance = middleware(adapted_handler) 64 except MiddlewareNotUsed as exc: 65 if settings.DEBUG: 66 if str(exc): 67 logger.debug("MiddlewareNotUsed(%r): %s", middleware_path, exc) 68 else: 69 logger.debug("MiddlewareNotUsed: %r", middleware_path) 70 continue 71 else: 72 handler = adapted_handler 73 74 if mw_instance is None: 75 raise ImproperlyConfigured( 76 "Middleware factory %s returned None." % middleware_path 77 ) 78 79 if hasattr(mw_instance, "process_view"): 80 self._view_middleware.insert( 81 0, 82 self.adapt_method_mode(is_async, mw_instance.process_view), 83 ) 84 if hasattr(mw_instance, "process_template_response"): 85 self._template_response_middleware.append( 86 self.adapt_method_mode( 87 is_async, mw_instance.process_template_response 88 ), 89 ) 90 if hasattr(mw_instance, "process_exception"): 91 # The exception-handling stack is still always synchronous for 92 # now, so adapt that way. 93 self._exception_middleware.append( 94 self.ad...
11	-	assistant	tool_use	`Read`
12	2026-06-12T17:32:47.583Z	user	tool_result	`Read`	1 import functools 2 import inspect 3 import os 4 import warnings 5 from collections import Counter 6 from inspect import iscoroutinefunction, markcoroutinefunction 7 8 from asgiref.sync import sync_to_async 9 10 import django 11 12 13 @functools.cache 14 def django_file_prefixes(): 15 try: 16 file = django.__file__ 17 except AttributeError: 18 return () 19 return (os.path.dirname(file),) 20 21 22 class RemovedInNextVersionWarning(DeprecationWarning): 23 pass 24 25 26 class RemovedInDjango70Warning(PendingDeprecationWarning): 27 pass 28 29 30 RemovedAfterNextVersionWarning = RemovedInDjango70Warning 31 32 33 class warn_about_renamed_method: 34 def __init__( 35 self, class_name, old_method_name, new_method_name, deprecation_warning 36 ): 37 self.class_name = class_name 38 self.old_method_name = old_method_name 39 self.new_method_name = new_method_name 40 self.deprecation_warning = deprecation_warning 41 42 def __call__(self, f): 43 def wrapper(args, kwargs): 44 warnings.warn( 45 "`%s.%s` is deprecated, use `%s` instead." 46 % (self.class_name, self.old_method_name, self.new_method_name), 47 self.deprecation_warning, 48 2, 49 ) 50 return f(args, *kwargs) 51 52 return wrapper 53 54 55 class RenameMethodsBase(type): 56 """ 57 Handles the deprecation paths when renaming a method. 58 59 It does the following: 60 1) Define the new method if missing and complain about it. 61 2) Define the old method if missing. 62 3) Complain whenever an old method is called. 63 64 See #15363 for more details. 65 """ 66 67 renamed_methods = () 68 69 def __new__(cls, name, bases, attrs): 70 new_class = super().__new__(cls, name, bases, attrs) 71 72 for base in inspect.getmro(new_class): 73 class_name = base.__name__ 74 for renamed_method in cls.renamed_methods: 75 old_method_name = renamed_method[0] 76 old_method = base.__dict__.get(old_method_name) 77 new_method_name = renamed_method[1] 78 new_method = base.__dict__.get(new_method_name) 79 deprecation_warning = renamed_method[2] 80 wrapper = warn_about_renamed_method(class_name, renamed_method) 81 82 # Define the new method if missing and complain about it 83 if not new_method and old_method: 84 warnings.warn( 85 "`%s.%s` method should be renamed `%s`." 86 % (class_name, old_method_name, new_method_name), 87 deprecation_warning, 88 2, 89 ) 90 setattr(base, new_method_name, old_method) 91 setattr(base, old_method_name, wrapper(old_method)) 92 93 # Define the old method as a wrapped call to the new method. 94 if not old_method and new_method: 95 setattr(base, old_method_name, wrapper(new_method)) 96 97 return new_class 98 99 100 def deprecate_posargs(deprecation_warning, remappable_names, /): 101 """ 102 Function/method decorator to deprecate some or all positional arguments. 103 104 The decorated function will map any positional arguments after the ``*`` to 105 the corresponding keyword arguments and issue a deprecation warning. 106 107 The decorator takes two arguments: a RemovedInDjangoXXWarning warning 108 category and a list of parameter names that have been changed from 109 positional-or-keyword to keyword-only, in their original positional order. 110 111 Works on both functions and methods. To apply to a class constructor, 112 decorate its __init__() method. To apply to a staticm...
13	-	assistant	tool_use	`Read`
14	2026-06-12T17:32:48.071Z	user	tool_result	`Read`	1 from io import IOBase 2 3 from django.conf import settings 4 from django.core import signals 5 from django.core.handlers import base 6 from django.http import HttpRequest, QueryDict, parse_cookie 7 from django.urls import set_script_prefix 8 from django.utils.encoding import repercent_broken_unicode 9 from django.utils.functional import cached_property 10 from django.utils.regex_helper import _lazy_re_compile 11 12 _slashes_re = _lazy_re_compile(rb"/+") 13 14 15 class LimitedStream(IOBase): 16 """ 17 Wrap another stream to disallow reading it past a number of bytes. 18 19 Based on the implementation from werkzeug.wsgi.LimitedStream. See: 20 https://github.com/pallets/werkzeug/blob/dbf78f67/src/werkzeug/wsgi.py#L828 21 """ 22 23 def __init__(self, stream, limit): 24 self._read = stream.read 25 self._readline = stream.readline 26 self._pos = 0 27 self.limit = limit 28 29 def read(self, size=-1, /): 30 _pos = self._pos 31 limit = self.limit 32 if _pos >= limit: 33 return b"" 34 if size == -1 or size is None: 35 size = limit - _pos 36 else: 37 size = min(size, limit - _pos) 38 data = self._read(size) 39 self._pos += len(data) 40 return data 41 42 def readline(self, size=-1, /): 43 _pos = self._pos 44 limit = self.limit 45 if _pos >= limit: 46 return b"" 47 if size == -1 or size is None: 48 size = limit - _pos 49 else: 50 size = min(size, limit - _pos) 51 line = self._readline(size) 52 self._pos += len(line) 53 return line 54 55 56 class WSGIRequest(HttpRequest): 57 def __init__(self, environ): 58 script_name = get_script_name(environ) 59 # If PATH_INFO is empty (e.g. accessing the SCRIPT_NAME URL without a 60 # trailing slash), operate as if '/' was requested. 61 path_info = get_path_info(environ) or "/" 62 self.environ = environ 63 self.path_info = path_info 64 # be careful to only replace the first slash in the path because of 65 # http://test/something and http://test//something being different as 66 # stated in RFC 3986. 67 self.path = "%s/%s" % (script_name.rstrip("/"), path_info.replace("/", "", 1)) 68 self.META = environ 69 self.META["PATH_INFO"] = path_info 70 self.META["SCRIPT_NAME"] = script_name 71 self.method = environ["REQUEST_METHOD"].upper() 72 # Set content_type, content_params, and encoding. 73 self._set_content_type_params(environ) 74 try: 75 content_length = int(environ.get("CONTENT_LENGTH")) 76 except (ValueError, TypeError): 77 content_length = 0 78 self._stream = LimitedStream(self.environ["wsgi.input"], content_length) 79 self._read_started = False 80 self.resolver_match = None 81 82 def _get_scheme(self): 83 return self.environ.get("wsgi.url_scheme") 84 85 @cached_property 86 def GET(self): 87 # The WSGI spec says 'QUERY_STRING' may be absent. 88 raw_query_string = get_bytes_from_wsgi(self.environ, "QUERY_STRING", "") 89 return QueryDict(raw_query_string, encoding=self._encoding) 90 91 def _get_post(self): 92 if not hasattr(self, "_post"): 93 self._load_post_and_files() 94 return self._post 95 96 def _set_post(self, post): 97 self._post = post 98 99 @cached_property 100 def COOKIES(self): 101 raw_cookie = get_str_from_wsgi(self.environ, "HTTP_COOKIE", "") 102 return parse_cookie(raw_cookie) 103 104 @property 105 def FILES(self): 106 if not hasattr(self, "_files"): 107 self._load_post_and_files() 108 return self._files 109 110 POST = property(_get_post, _set_post) 111 112 113 class WSGIH...
15	-	assistant	tool_use	`Read`
16	2026-06-12T17:32:48.203Z	user	tool_result	`Read`	1 import logging 2 import sys 3 from functools import wraps 4 from inspect import iscoroutinefunction 5 6 from asgiref.sync import sync_to_async 7 8 from django.conf import settings 9 from django.core import signals 10 from django.core.exceptions import ( 11 BadRequest, 12 PermissionDenied, 13 RequestDataTooBig, 14 SuspiciousOperation, 15 TooManyFieldsSent, 16 TooManyFilesSent, 17 ) 18 from django.http import Http404 19 from django.http.multipartparser import MultiPartParserError 20 from django.urls import get_resolver, get_urlconf 21 from django.utils.log import log_response 22 from django.views import debug 23 24 25 def convert_exception_to_response(get_response): 26 """ 27 Wrap the given get_response callable in exception-to-response conversion. 28 29 All exceptions will be converted. All known 4xx exceptions (Http404, 30 PermissionDenied, MultiPartParserError, SuspiciousOperation) will be 31 converted to the appropriate response, and all other exceptions will be 32 converted to 500 responses. 33 34 This decorator is automatically applied to all middleware to ensure that 35 no middleware leaks an exception and that the next middleware in the stack 36 can rely on getting a response instead of an exception. 37 """ 38 if iscoroutinefunction(get_response): 39 40 @wraps(get_response) 41 async def inner(request): 42 try: 43 response = await get_response(request) 44 except Exception as exc: 45 response = await sync_to_async( 46 response_for_exception, thread_sensitive=False 47 )(request, exc) 48 return response 49 50 return inner 51 else: 52 53 @wraps(get_response) 54 def inner(request): 55 try: 56 response = get_response(request) 57 except Exception as exc: 58 response = response_for_exception(request, exc) 59 return response 60 61 return inner 62 63 64 def response_for_exception(request, exc): 65 if isinstance(exc, Http404): 66 if settings.DEBUG: 67 response = debug.technical_404_response(request, exc) 68 else: 69 response = get_exception_response( 70 request, get_resolver(get_urlconf()), 404, exc 71 ) 72 73 elif isinstance(exc, PermissionDenied): 74 response = get_exception_response( 75 request, get_resolver(get_urlconf()), 403, exc 76 ) 77 log_response( 78 "Forbidden (Permission denied): %s", 79 request.path, 80 response=response, 81 request=request, 82 exception=exc, 83 ) 84 85 elif isinstance(exc, MultiPartParserError): 86 response = get_exception_response( 87 request, get_resolver(get_urlconf()), 400, exc 88 ) 89 log_response( 90 "Bad request (Unable to parse request body): %s", 91 request.path, 92 response=response, 93 request=request, 94 exception=exc, 95 ) 96 97 elif isinstance(exc, BadRequest): 98 if settings.DEBUG: 99 response = debug.technical_500_response( 100 request, *sys.exc_info(), status_code=400 101 ) 102 else: 103 response = get_exception_response( 104 request, get_resolver(get_urlconf()), 400, exc 105 ) 106 log_response( 107 "%s: %s", 108 str(exc), 109 request.path, 110 response=response, 111 request=request, 112 exception=exc, 113 ) 114 elif isinstance(exc, SuspiciousOperation): 115 if isinstance(exc, (RequestDataTooBig, TooManyFieldsSent, TooManyFilesSent)): 116 # POST data can't be accessed again, otherwise the ori...
17	-	assistant	text	`-`	Now let me check the MIDDLEWARE setting default and `get_wsgi_application`.
18	-	assistant	tool_use	`Bash`
19	-	system	task_started	`-`
20	-	system	task_notification	`-`
21	2026-06-12T17:33:05.389Z	user	tool_result	`Bash`	465:# MIDDLEWARE # 471:MIDDLEWARE = [] 516:CACHE_MIDDLEWARE_KEY_PREFIX = "" 517:CACHE_MIDDLEWARE_SECONDS = 600 518:CACHE_MIDDLEWARE_ALIAS = "default" 654:# SECURITY MIDDLEWARE # 667:# CSP MIDDLEWARE # --- import django from django.core.handlers.wsgi import WSGIHandler def get_wsgi_application(): """ The public interface to Django's WSGI support. Return a WSGI callable. Avoids making django.core.handlers.WSGIHandler a public API, in case the internal WSGI implementation changes or moves in the future. """ django.setup(set_prefix=False) return WSGIHandler() --- /workspace/django--674eda1c/django/contrib/admindocs/middleware.py:4:from django.utils.deprecation import MiddlewareMixin /workspace/django--674eda1c/django/contrib/admindocs/middleware.py:9:class XViewMiddleware(MiddlewareMixin): /workspace/django--674eda1c/django/contrib/auth/middleware.py:12:from django.utils.deprecation import MiddlewareMixin /workspace/django--674eda1c/django/contrib/auth/middleware.py:28:class AuthenticationMiddleware(MiddlewareMixin): /workspace/django--674eda1c/django/contrib/auth/middleware.py:42:class LoginRequiredMiddleware(MiddlewareMixin): /workspace/django--674eda1c/django/contrib/flatpages/middleware.py:4:from django.utils.deprecation import MiddlewareMixin /workspace/django--674eda1c/django/contrib/flatpages/middleware.py:7:class FlatpageFallbackMiddleware(MiddlewareMixin): /workspace/django--674eda1c/django/contrib/messages/middleware.py:3:from django.utils.deprecation import MiddlewareMixin /workspace/django--674eda1c/django/contrib/messages/middleware.py:6:class MessageMiddleware(MiddlewareMixin): /workspace/django--674eda1c/django/contrib/redirects/middleware.py:7:from django.utils.deprecation import MiddlewareMixin /workspace/django--674eda1c/django/contrib/redirects/middleware.py:10:class RedirectFallbackMiddleware(MiddlewareMixin): /workspace/django--674eda1c/django/contrib/sessions/middleware.py:8:from django.utils.deprecation import MiddlewareMixin /workspace/django--674eda1c/django/contrib/sessions/middleware.py:12:class SessionMiddleware(MiddlewareMixin): /workspace/django--674eda1c/django/contrib/sites/middleware.py:1:from django.utils.deprecation import MiddlewareMixin /workspace/django--674eda1c/django/contrib/sites/middleware.py:6:class CurrentSiteMiddleware(MiddlewareMixin): /workspace/django--674eda1c/django/contrib/staticfiles/handlers.py:24: def load_middleware(self): /workspace/django--674eda1c/django/core/handlers/asgi.py:152: self.load_middleware(is_async=True) /workspace/django--674eda1c/django/core/handlers/base.py:27: def load_middleware(self, is_async=False): /workspace/django--674eda1c/django/core/handlers/wsgi.py:118: self.load_middleware() /workspace/django--674eda1c/django/test/client.py:173: self.load_middleware() /workspace/django--674eda1c/django/test/client.py:224: self.load_middleware(is_async=True) /workspace/django--674eda1c/django/utils/deprecation.py:275:class MiddlewareMixin:
22	-	assistant	text	`-`	I have all the pieces. Writing the answer file now.
23	-	assistant	tool_use	`Write`
24	2026-06-12T17:33:46.636Z	user	tool_result	`Write`	File created successfully at: /workspace/answer.json (file state is current in your context — no need to Read it back)
25	-	assistant	text	`-`	Done — `/workspace/answer.json` is written. Here's the TLDR of what I found in the django/django checkout at `/workspace/django--674eda1c`: Core files implementing MIDDLEWARE processing: - `django/core/handlers/base.py` — `BaseHandler.load_middleware()` is the stack builder. It iterates `reversed(settings.MIDDLEWARE)`, instantiating each middleware around the previous handler (`mw_instance = middleware(handler)`), so the first entry in the settings list becomes the outermost layer. The result is stored as `_middleware_chain`. The same loop collects `process_view` hooks in forward order (`insert(0, ...)`) and `process_template_response`/`process_exception` hooks in reverse order (`append`). `_get_response()` is the innermost layer that runs view middleware and the view itself. - `django/utils/deprecation.py` — `MiddlewareMixin.__call__` defines the classic hook ordering: `process_request(request)` on the way in (short-circuiting if it returns a response), then `self.get_response(request)`, then `process_response(request, response)` on the way out. Combined with the reversed construction, `process_request` runs top-to-bottom and `process_response` bottom-to-top of the settings list. - `django/core/handlers/exception.py` — `convert_exception_to_response()` wraps every layer so no middleware leaks exceptions. - `django/core/handlers/wsgi.py` + `django/core/wsgi.py` — `WSGIHandler.__init__` calls `load_middleware()`; its `__call__(environ, start_response)` is the single WSGI callable that invokes the whole Django onion. `django/core/handlers/asgi.py` is the async twin (`load_middleware(is_async=True)`). - `django/conf/global_settings.py` — declares the default `MIDDLEWARE = []` setting. WSGI comparison: Django's chain is functionally the same onion as WSGI's `MiddlewareA(MiddlewareB(app))` wrapping — `load_middleware` just builds the nesting from a declarative flat list (reversed so list order = outer-to-inner), operates on `HttpRequest`/`HttpResponse` instead of `environ`/`start_response`, and adds phase hooks and per-layer exception conversion that raw WSGI stacking lacks. Flask itself isn't in the workspace; it uses the plain WSGI wrapping pattern (`app.wsgi_app = MW(app.wsgi_app)`), which is the WSGI side of that comparison.

Tool Calls (9)

1. Bash @ -

Input

{
  "command": "ls /workspace && ls /workspace/django 2>/dev/null | head",
  "description": "List workspace contents"
}

Output

{
  "stdout": "django--674eda1c",
  "stderr": "",
  "interrupted": false,
  "isImage": false,
  "noOutputExpected": false
}

2. Bash @ -

Input

{
  "command": "ls /workspace/django--674eda1c",
  "description": "List repo root"
}

Output

{
  "stdout": "AUTHORS\nCONTRIBUTING.rst\nGruntfile.js\nINSTALL\nLICENSE\nLICENSE.python\nMANIFEST.in\nREADME.rst\ndjango\ndocs\neslint-recommended.js\neslint.config.mjs\nextras\nglobals.js\njs_tests\npackage.json\npyproject.toml\nscripts\ntests\ntox.ini\nzizmor.yml",
  "stderr": "",
  "interrupted": false,
  "isImage": false,
  "noOutputExpected": false
}

3. Bash @ -

Input

{
  "command": "ls /workspace/django--674eda1c/django/core/handlers/ /workspace/django--674eda1c/django/middleware/ /workspace/django--674eda1c/django/utils/deprecation.py",
  "description": "List handler and middleware directories"
}

Output

{
  "stdout": "/workspace/django--674eda1c/django/utils/deprecation.py\n\n/workspace/django--674eda1c/django/core/handlers/:\n__init__.py\nasgi.py\nbase.py\nexception.py\nwsgi.py\n\n/workspace/django--674eda1c/django/middleware/:\n__init__.py\ncache.py\nclickjacking.py\ncommon.py\ncsp.py\ncsrf.py\ngzip.py\nhttp.py\nlocale.py\nsecurity.py",
  "stderr": "",
  "interrupted": false,
  "isImage": false,
  "noOutputExpected": false
}

4. Read @ -

Input

{
  "file_path": "/workspace/django--674eda1c/django/core/handlers/base.py"
}

Output

{
  "type": "text",
  "file": {
    "filePath": "/workspace/django--674eda1c/django/core/handlers/base.py",
    "content": "import asyncio\nimport logging\nimport types\nfrom inspect import iscoroutinefunction\n\nfrom asgiref.sync import async_to_sync, sync_to_async\n\nfrom django.conf import settings\nfrom django.core.exceptions import ImproperlyConfigured, MiddlewareNotUsed\nfrom django.core.signals import request_finished\nfrom django.db import connections, transaction\nfrom django.urls import get_resolver, set_urlconf\nfrom django.utils.log import log_response\nfrom django.utils.module_loading import import_string\n\nfrom .exception import convert_exception_to_response\n\nlogger = logging.getLogger(\"django.request\")\n\n\nclass BaseHandler:\n    _view_middleware = None\n    _template_response_middleware = None\n    _exception_middleware = None\n    _middleware_chain = None\n\n    def load_middleware(self, is_async=False):\n        \"\"\"\n        Populate middleware lists from settings.MIDDLEWARE.\n\n        Must be called after the environment is fixed (see __call__ in\n        subclasses).\n        \"\"\"\n        self._view_middleware = []\n        self._template_response_middleware = []\n        self._exception_middleware = []\n\n        get_response = self._get_response_async if is_async else self._get_response\n        handler = convert_exception_to_response(get_response)\n        handler_is_async = is_async\n        for middleware_path in reversed(settings.MIDDLEWARE):\n            middleware = import_string(middleware_path)\n            middleware_can_sync = getattr(middleware, \"sync_capable\", True)\n            middleware_can_async = getattr(middleware, \"async_capable\", False)\n            if not middleware_can_sync and not middleware_can_async:\n                raise RuntimeError(\n                    \"Middleware %s must have at least one of \"\n                    \"sync_capable/async_capable set to True.\" % middleware_path\n                )\n            elif not handler_is_async and middleware_can_sync:\n                middleware_is_async = False\n            else:\n                middleware_is_async = middleware_can_async\n            try:\n                # Adapt handler, if needed.\n                adapted_handler = self.adapt_method_mode(\n                    middleware_is_async,\n                    handler,\n                    handler_is_async,\n                    debug=settings.DEBUG,\n                    name=\"middleware %s\" % middleware_path,\n                )\n                mw_instance = middleware(adapted_handler)\n            except MiddlewareNotUsed as exc:\n                if settings.DEBUG:\n                    if str(exc):\n                        logger.debug(\"MiddlewareNotUsed(%r): %s\", middleware_path, exc)\n                    else:\n                        logger.debug(\"MiddlewareNotUsed: %r\", middleware_path)\n                continue\n            else:\n                handler = adapted_handler\n\n            if mw_instance is None:\n                raise ImproperlyConfigured(\n                    \"Middleware factory %s returned None.\" % middleware_path\n                )\n\n            if hasattr(mw_instance, \"process_view\"):\n                self._view_middleware.insert(\n                    0,\n                    self.adapt_method_mode(is_async, mw_instance.process_view),\n                )\n            if hasattr(mw_instance, \"process_template_response\"):\n                self._template_response_middleware.append(\n                    self.adapt_method_mode(\n                        is_async, mw_instance.process_template_response\n                    ),\n                )\n            if hasattr(mw_instance, \"process_exception\"):\n                # The exception-handling stack is still always synchronous for\n                # now, so adapt that way.\n                self._exception_middleware.append(\n                    self.adapt_method_mode(False, mw_
...

5. Read @ -

Input

{
  "file_path": "/workspace/django--674eda1c/django/utils/deprecation.py"
}

Output

{
  "type": "text",
  "file": {
    "filePath": "/workspace/django--674eda1c/django/utils/deprecation.py",
    "content": "import functools\nimport inspect\nimport os\nimport warnings\nfrom collections import Counter\nfrom inspect import iscoroutinefunction, markcoroutinefunction\n\nfrom asgiref.sync import sync_to_async\n\nimport django\n\n\n@functools.cache\ndef django_file_prefixes():\n    try:\n        file = django.__file__\n    except AttributeError:\n        return ()\n    return (os.path.dirname(file),)\n\n\nclass RemovedInNextVersionWarning(DeprecationWarning):\n    pass\n\n\nclass RemovedInDjango70Warning(PendingDeprecationWarning):\n    pass\n\n\nRemovedAfterNextVersionWarning = RemovedInDjango70Warning\n\n\nclass warn_about_renamed_method:\n    def __init__(\n        self, class_name, old_method_name, new_method_name, deprecation_warning\n    ):\n        self.class_name = class_name\n        self.old_method_name = old_method_name\n        self.new_method_name = new_method_name\n        self.deprecation_warning = deprecation_warning\n\n    def __call__(self, f):\n        def wrapper(*args, **kwargs):\n            warnings.warn(\n                \"`%s.%s` is deprecated, use `%s` instead.\"\n                % (self.class_name, self.old_method_name, self.new_method_name),\n                self.deprecation_warning,\n                2,\n            )\n            return f(*args, **kwargs)\n\n        return wrapper\n\n\nclass RenameMethodsBase(type):\n    \"\"\"\n    Handles the deprecation paths when renaming a method.\n\n    It does the following:\n        1) Define the new method if missing and complain about it.\n        2) Define the old method if missing.\n        3) Complain whenever an old method is called.\n\n    See #15363 for more details.\n    \"\"\"\n\n    renamed_methods = ()\n\n    def __new__(cls, name, bases, attrs):\n        new_class = super().__new__(cls, name, bases, attrs)\n\n        for base in inspect.getmro(new_class):\n            class_name = base.__name__\n            for renamed_method in cls.renamed_methods:\n                old_method_name = renamed_method[0]\n                old_method = base.__dict__.get(old_method_name)\n                new_method_name = renamed_method[1]\n                new_method = base.__dict__.get(new_method_name)\n                deprecation_warning = renamed_method[2]\n                wrapper = warn_about_renamed_method(class_name, *renamed_method)\n\n                # Define the new method if missing and complain about it\n                if not new_method and old_method:\n                    warnings.warn(\n                        \"`%s.%s` method should be renamed `%s`.\"\n                        % (class_name, old_method_name, new_method_name),\n                        deprecation_warning,\n                        2,\n                    )\n                    setattr(base, new_method_name, old_method)\n                    setattr(base, old_method_name, wrapper(old_method))\n\n                # Define the old method as a wrapped call to the new method.\n                if not old_method and new_method:\n                    setattr(base, old_method_name, wrapper(new_method))\n\n        return new_class\n\n\ndef deprecate_posargs(deprecation_warning, remappable_names, /):\n    \"\"\"\n    Function/method decorator to deprecate some or all positional arguments.\n\n    The decorated function will map any positional arguments after the ``*`` to\n    the corresponding keyword arguments and issue a deprecation warning.\n\n    The decorator takes two arguments: a RemovedInDjangoXXWarning warning\n    category and a list of parameter names that have been changed from\n    positional-or-keyword to keyword-only, in their original positional order.\n\n    Works on both functions and methods. To apply to a class constructor,\n    decorate its __init__() method. To apply to a staticmethod or classmethod,\n    use @deprecate_posargs after @staticmethod or @classmethod.\n\n   
...

6. Read @ -

Input

{
  "file_path": "/workspace/django--674eda1c/django/core/handlers/wsgi.py"
}

Output

{
  "type": "text",
  "file": {
    "filePath": "/workspace/django--674eda1c/django/core/handlers/wsgi.py",
    "content": "from io import IOBase\n\nfrom django.conf import settings\nfrom django.core import signals\nfrom django.core.handlers import base\nfrom django.http import HttpRequest, QueryDict, parse_cookie\nfrom django.urls import set_script_prefix\nfrom django.utils.encoding import repercent_broken_unicode\nfrom django.utils.functional import cached_property\nfrom django.utils.regex_helper import _lazy_re_compile\n\n_slashes_re = _lazy_re_compile(rb\"/+\")\n\n\nclass LimitedStream(IOBase):\n    \"\"\"\n    Wrap another stream to disallow reading it past a number of bytes.\n\n    Based on the implementation from werkzeug.wsgi.LimitedStream. See:\n    https://github.com/pallets/werkzeug/blob/dbf78f67/src/werkzeug/wsgi.py#L828\n    \"\"\"\n\n    def __init__(self, stream, limit):\n        self._read = stream.read\n        self._readline = stream.readline\n        self._pos = 0\n        self.limit = limit\n\n    def read(self, size=-1, /):\n        _pos = self._pos\n        limit = self.limit\n        if _pos >= limit:\n            return b\"\"\n        if size == -1 or size is None:\n            size = limit - _pos\n        else:\n            size = min(size, limit - _pos)\n        data = self._read(size)\n        self._pos += len(data)\n        return data\n\n    def readline(self, size=-1, /):\n        _pos = self._pos\n        limit = self.limit\n        if _pos >= limit:\n            return b\"\"\n        if size == -1 or size is None:\n            size = limit - _pos\n        else:\n            size = min(size, limit - _pos)\n        line = self._readline(size)\n        self._pos += len(line)\n        return line\n\n\nclass WSGIRequest(HttpRequest):\n    def __init__(self, environ):\n        script_name = get_script_name(environ)\n        # If PATH_INFO is empty (e.g. accessing the SCRIPT_NAME URL without a\n        # trailing slash), operate as if '/' was requested.\n        path_info = get_path_info(environ) or \"/\"\n        self.environ = environ\n        self.path_info = path_info\n        # be careful to only replace the first slash in the path because of\n        # http://test/something and http://test//something being different as\n        # stated in RFC 3986.\n        self.path = \"%s/%s\" % (script_name.rstrip(\"/\"), path_info.replace(\"/\", \"\", 1))\n        self.META = environ\n        self.META[\"PATH_INFO\"] = path_info\n        self.META[\"SCRIPT_NAME\"] = script_name\n        self.method = environ[\"REQUEST_METHOD\"].upper()\n        # Set content_type, content_params, and encoding.\n        self._set_content_type_params(environ)\n        try:\n            content_length = int(environ.get(\"CONTENT_LENGTH\"))\n        except (ValueError, TypeError):\n            content_length = 0\n        self._stream = LimitedStream(self.environ[\"wsgi.input\"], content_length)\n        self._read_started = False\n        self.resolver_match = None\n\n    def _get_scheme(self):\n        return self.environ.get(\"wsgi.url_scheme\")\n\n    @cached_property\n    def GET(self):\n        # The WSGI spec says 'QUERY_STRING' may be absent.\n        raw_query_string = get_bytes_from_wsgi(self.environ, \"QUERY_STRING\", \"\")\n        return QueryDict(raw_query_string, encoding=self._encoding)\n\n    def _get_post(self):\n        if not hasattr(self, \"_post\"):\n            self._load_post_and_files()\n        return self._post\n\n    def _set_post(self, post):\n        self._post = post\n\n    @cached_property\n    def COOKIES(self):\n        raw_cookie = get_str_from_wsgi(self.environ, \"HTTP_COOKIE\", \"\")\n        return parse_cookie(raw_cookie)\n\n    @property\n    def FILES(self):\n        if not hasattr(self, \"_files\"):\n            self._load_post_and_files()\n        return self._files\n\n    POST = property(_get_post, _set_post)\n\n\nclass WSGIHandler(base.BaseHandler):\n    request_class = WSGIRequest\n\n
...

7. Read @ -

Input

{
  "file_path": "/workspace/django--674eda1c/django/core/handlers/exception.py"
}

Output

{
  "type": "text",
  "file": {
    "filePath": "/workspace/django--674eda1c/django/core/handlers/exception.py",
    "content": "import logging\nimport sys\nfrom functools import wraps\nfrom inspect import iscoroutinefunction\n\nfrom asgiref.sync import sync_to_async\n\nfrom django.conf import settings\nfrom django.core import signals\nfrom django.core.exceptions import (\n    BadRequest,\n    PermissionDenied,\n    RequestDataTooBig,\n    SuspiciousOperation,\n    TooManyFieldsSent,\n    TooManyFilesSent,\n)\nfrom django.http import Http404\nfrom django.http.multipartparser import MultiPartParserError\nfrom django.urls import get_resolver, get_urlconf\nfrom django.utils.log import log_response\nfrom django.views import debug\n\n\ndef convert_exception_to_response(get_response):\n    \"\"\"\n    Wrap the given get_response callable in exception-to-response conversion.\n\n    All exceptions will be converted. All known 4xx exceptions (Http404,\n    PermissionDenied, MultiPartParserError, SuspiciousOperation) will be\n    converted to the appropriate response, and all other exceptions will be\n    converted to 500 responses.\n\n    This decorator is automatically applied to all middleware to ensure that\n    no middleware leaks an exception and that the next middleware in the stack\n    can rely on getting a response instead of an exception.\n    \"\"\"\n    if iscoroutinefunction(get_response):\n\n        @wraps(get_response)\n        async def inner(request):\n            try:\n                response = await get_response(request)\n            except Exception as exc:\n                response = await sync_to_async(\n                    response_for_exception, thread_sensitive=False\n                )(request, exc)\n            return response\n\n        return inner\n    else:\n\n        @wraps(get_response)\n        def inner(request):\n            try:\n                response = get_response(request)\n            except Exception as exc:\n                response = response_for_exception(request, exc)\n            return response\n\n        return inner\n\n\ndef response_for_exception(request, exc):\n    if isinstance(exc, Http404):\n        if settings.DEBUG:\n            response = debug.technical_404_response(request, exc)\n        else:\n            response = get_exception_response(\n                request, get_resolver(get_urlconf()), 404, exc\n            )\n\n    elif isinstance(exc, PermissionDenied):\n        response = get_exception_response(\n            request, get_resolver(get_urlconf()), 403, exc\n        )\n        log_response(\n            \"Forbidden (Permission denied): %s\",\n            request.path,\n            response=response,\n            request=request,\n            exception=exc,\n        )\n\n    elif isinstance(exc, MultiPartParserError):\n        response = get_exception_response(\n            request, get_resolver(get_urlconf()), 400, exc\n        )\n        log_response(\n            \"Bad request (Unable to parse request body): %s\",\n            request.path,\n            response=response,\n            request=request,\n            exception=exc,\n        )\n\n    elif isinstance(exc, BadRequest):\n        if settings.DEBUG:\n            response = debug.technical_500_response(\n                request, *sys.exc_info(), status_code=400\n            )\n        else:\n            response = get_exception_response(\n                request, get_resolver(get_urlconf()), 400, exc\n            )\n        log_response(\n            \"%s: %s\",\n            str(exc),\n            request.path,\n            response=response,\n            request=request,\n            exception=exc,\n        )\n    elif isinstance(exc, SuspiciousOperation):\n        if isinstance(exc, (RequestDataTooBig, TooManyFieldsSent, TooManyFilesSent)):\n            # POST data can't be accessed again, otherwise the original\n            # exception would be raised.\n            request._mark_post_parse_error()\n\n   
...

8. Bash @ -

Input

{
  "command": "grep -n \"MIDDLEWARE\" /workspace/django--674eda1c/django/conf/global_settings.py; echo ---; cat /workspace/django--674eda1c/django/core/wsgi.py; echo ---; grep -n \"load_middleware\\|MiddlewareMixin\" -r /workspace/django--674eda1c/django --include=*.py | grep -v middleware/ ",
  "description": "Find MIDDLEWARE setting and load_middleware usages"
}

Output

{
  "stdout": "465:# MIDDLEWARE #\n471:MIDDLEWARE = []\n516:CACHE_MIDDLEWARE_KEY_PREFIX = \"\"\n517:CACHE_MIDDLEWARE_SECONDS = 600\n518:CACHE_MIDDLEWARE_ALIAS = \"default\"\n654:# SECURITY MIDDLEWARE #\n667:# CSP MIDDLEWARE #\n---\nimport django\nfrom django.core.handlers.wsgi import WSGIHandler\n\n\ndef get_wsgi_application():\n    \"\"\"\n    The public interface to Django's WSGI support. Return a WSGI callable.\n\n    Avoids making django.core.handlers.WSGIHandler a public API, in case the\n    internal WSGI implementation changes or moves in the future.\n    \"\"\"\n    django.setup(set_prefix=False)\n    return WSGIHandler()\n---\n/workspace/django--674eda1c/django/contrib/admindocs/middleware.py:4:from django.utils.deprecation import MiddlewareMixin\n/workspace/django--674eda1c/django/contrib/admindocs/middleware.py:9:class XViewMiddleware(MiddlewareMixin):\n/workspace/django--674eda1c/django/contrib/auth/middleware.py:12:from django.utils.deprecation import MiddlewareMixin\n/workspace/django--674eda1c/django/contrib/auth/middleware.py:28:class AuthenticationMiddleware(MiddlewareMixin):\n/workspace/django--674eda1c/django/contrib/auth/middleware.py:42:class LoginRequiredMiddleware(MiddlewareMixin):\n/workspace/django--674eda1c/django/contrib/flatpages/middleware.py:4:from django.utils.deprecation import MiddlewareMixin\n/workspace/django--674eda1c/django/contrib/flatpages/middleware.py:7:class FlatpageFallbackMiddleware(MiddlewareMixin):\n/workspace/django--674eda1c/django/contrib/messages/middleware.py:3:from django.utils.deprecation import MiddlewareMixin\n/workspace/django--674eda1c/django/contrib/messages/middleware.py:6:class MessageMiddleware(MiddlewareMixin):\n/workspace/django--674eda1c/django/contrib/redirects/middleware.py:7:from django.utils.deprecation import MiddlewareMixin\n/workspace/django--674eda1c/django/contrib/redirects/middleware.py:10:class RedirectFallbackMiddleware(MiddlewareMixin):\n/workspace/django--674eda1c/django/contrib/sessions/middleware.py:8:from django.utils.deprecation import MiddlewareMixin\n/workspace/django--674eda1c/django/contrib/sessions/middleware.py:12:class SessionMiddleware(MiddlewareMixin):\n/workspace/django--674eda1c/django/contrib/sites/middleware.py:1:from django.utils.deprecation import MiddlewareMixin\n/workspace/django--674eda1c/django/contrib/sites/middleware.py:6:class CurrentSiteMiddleware(MiddlewareMixin):\n/workspace/django--674eda1c/django/contrib/staticfiles/handlers.py:24:    def load_middleware(self):\n/workspace/django--674eda1c/django/core/handlers/asgi.py:152:        self.load_middleware(is_async=True)\n/workspace/django--674eda1c/django/core/handlers/base.py:27:    def load_middleware(self, is_async=False):\n/workspace/django--674eda1c/django/core/handlers/wsgi.py:118:        self.load_middleware()\n/workspace/django--674eda1c/django/test/client.py:173:            self.load_middleware()\n/workspace/django--674eda1c/django/test/client.py:224:            self.load_middleware(is_async=True)\n/workspace/django--674eda1c/django/utils/deprecation.py:275:class MiddlewareMixin:",
  "stderr": "",
  "interrupted": false,
  "isImage": false,
  "noOutputExpected": false
}

9. Write @ -

Input

{
  "file_path": "/workspace/answer.json",
  "content": "{\n  \"files\": [\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/base.py\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/wsgi.py\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/exception.py\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/asgi.py\"},\n    {\"repo\": \"django/django\", \"path\": \"django/utils/deprecation.py\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/wsgi.py\"},\n    {\"repo\": \"django/django\", \"path\": \"django/conf/global_settings.py\"}\n  ],\n  \"symbols\": [\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/base.py\", \"symbol\": \"BaseHandler\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/base.py\", \"symbol\": \"BaseHandler.load_middleware\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/base.py\", \"symbol\": \"BaseHandler.adapt_method_mode\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/base.py\", \"symbol\": \"BaseHandler.get_response\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/base.py\", \"symbol\": \"BaseHandler._get_response\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/base.py\", \"symbol\": \"BaseHandler.process_exception_by_middleware\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/wsgi.py\", \"symbol\": \"WSGIHandler\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/wsgi.py\", \"symbol\": \"WSGIHandler.__call__\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/exception.py\", \"symbol\": \"convert_exception_to_response\"},\n    {\"repo\": \"django/django\", \"path\": \"django/utils/deprecation.py\", \"symbol\": \"MiddlewareMixin\"},\n    {\"repo\": \"django/django\", \"path\": \"django/utils/deprecation.py\", \"symbol\": \"MiddlewareMixin.__call__\"},\n    {\"repo\": \"django/django\", \"path\": \"django/utils/deprecation.py\", \"symbol\": \"MiddlewareMixin.__acall__\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/wsgi.py\", \"symbol\": \"get_wsgi_application\"},\n    {\"repo\": \"django/django\", \"path\": \"django/conf/global_settings.py\", \"symbol\": \"MIDDLEWARE\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/asgi.py\", \"symbol\": \"ASGIHandler\"}\n  ],\n  \"chain\": [\n    {\"repo\": \"django/django\", \"path\": \"django/core/wsgi.py\", \"symbol\": \"get_wsgi_application\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/wsgi.py\", \"symbol\": \"WSGIHandler.__init__\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/base.py\", \"symbol\": \"BaseHandler.load_middleware\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/exception.py\", \"symbol\": \"convert_exception_to_response\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/wsgi.py\", \"symbol\": \"WSGIHandler.__call__\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/base.py\", \"symbol\": \"BaseHandler.get_response\"},\n    {\"repo\": \"django/django\", \"path\": \"django/utils/deprecation.py\", \"symbol\": \"MiddlewareMixin.__call__\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/base.py\", \"symbol\": \"BaseHandler._get_response\"}\n  ],\n  \"text\": \"Django's MIDDLEWARE setting processing lives almost entirely in django/django under django/core/handlers/.\\n\\nStack construction: BaseHandler.load_middleware() in django/core/handlers/base.py is the heart of it. It starts with the innermost handler (BaseHandler._get_response, which resolves the URL and calls the view) and iterates over reversed(settings.MIDDLEWARE) (default MIDDLEWARE = [] is declared in django/conf/global_settings.py). For each dotted path it imports the middleware factory via import_string and instantiates it as middlewa
...

Output

{
  "type": "create",
  "filePath": "/workspace/answer.json",
  "content": "{\n  \"files\": [\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/base.py\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/wsgi.py\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/exception.py\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/asgi.py\"},\n    {\"repo\": \"django/django\", \"path\": \"django/utils/deprecation.py\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/wsgi.py\"},\n    {\"repo\": \"django/django\", \"path\": \"django/conf/global_settings.py\"}\n  ],\n  \"symbols\": [\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/base.py\", \"symbol\": \"BaseHandler\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/base.py\", \"symbol\": \"BaseHandler.load_middleware\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/base.py\", \"symbol\": \"BaseHandler.adapt_method_mode\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/base.py\", \"symbol\": \"BaseHandler.get_response\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/base.py\", \"symbol\": \"BaseHandler._get_response\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/base.py\", \"symbol\": \"BaseHandler.process_exception_by_middleware\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/wsgi.py\", \"symbol\": \"WSGIHandler\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/wsgi.py\", \"symbol\": \"WSGIHandler.__call__\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/exception.py\", \"symbol\": \"convert_exception_to_response\"},\n    {\"repo\": \"django/django\", \"path\": \"django/utils/deprecation.py\", \"symbol\": \"MiddlewareMixin\"},\n    {\"repo\": \"django/django\", \"path\": \"django/utils/deprecation.py\", \"symbol\": \"MiddlewareMixin.__call__\"},\n    {\"repo\": \"django/django\", \"path\": \"django/utils/deprecation.py\", \"symbol\": \"MiddlewareMixin.__acall__\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/wsgi.py\", \"symbol\": \"get_wsgi_application\"},\n    {\"repo\": \"django/django\", \"path\": \"django/conf/global_settings.py\", \"symbol\": \"MIDDLEWARE\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/asgi.py\", \"symbol\": \"ASGIHandler\"}\n  ],\n  \"chain\": [\n    {\"repo\": \"django/django\", \"path\": \"django/core/wsgi.py\", \"symbol\": \"get_wsgi_application\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/wsgi.py\", \"symbol\": \"WSGIHandler.__init__\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/base.py\", \"symbol\": \"BaseHandler.load_middleware\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/exception.py\", \"symbol\": \"convert_exception_to_response\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/wsgi.py\", \"symbol\": \"WSGIHandler.__call__\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/base.py\", \"symbol\": \"BaseHandler.get_response\"},\n    {\"repo\": \"django/django\", \"path\": \"django/utils/deprecation.py\", \"symbol\": \"MiddlewareMixin.__call__\"},\n    {\"repo\": \"django/django\", \"path\": \"django/core/handlers/base.py\", \"symbol\": \"BaseHandler._get_response\"}\n  ],\n  \"text\": \"Django's MIDDLEWARE setting processing lives almost entirely in django/django under django/core/handlers/.\\n\\nStack construction: BaseHandler.load_middleware() in django/core/handlers/base.py is the heart of it. It starts with the innermost handler (BaseHandler._get_response, which resolves the URL and calls the view) and iterates over reversed(settings.MIDDLEWARE) (default MIDDLEWARE = [] is declared in django/conf/global_settings.py). For each dotted path it imports the middleware factory via import_string and instanti
...

Code Changes (1)

1. WRITE /workspace/answer.json

{
  "files": [
    {"repo": "django/django", "path": "django/core/handlers/base.py"},
    {"repo": "django/django", "path": "django/core/handlers/wsgi.py"},
    {"repo": "django/django", "path": "django/core/handlers/exception.py"},
    {"repo": "django/django", "path": "django/core/handlers/asgi.py"},
    {"repo": "django/django", "path": "django/utils/deprecation.py"},
    {"repo": "django/django", "path": "django/core/wsgi.py"},
    {"repo": "django/django", "path": "django/conf/global_settings.py"}
  ],
  "symbols": [
    {"repo": "django/django", "path": "django/core/handlers/base.py", "symbol": "BaseHandler"},
    {"repo": "django/django", "path": "django/core/handlers/base.py", "symbol": "BaseHandler.load_middleware"},
    {"repo": "django/django", "path": "django/core/handlers/base.py", "symbol": "BaseHandler.adapt_method_mode"},
    {"repo": "django/django", "path": "django/core/handlers/base.py", "symbol": "BaseHandler.get_response"},
    {"repo": "django/django", "path": "django/core/handlers/base.py", "symbol": "BaseHandler._get_response"},
    {"repo": "django/django", "path": "django/core/handlers/base.py", "symbol": "BaseHandler.process_exception_by_middleware"},
    {"repo": "django/django", "path": "django/core/handlers/wsgi.py", "symbol": "WSGIHandler"},
    {"repo": "django/django", "path": "django/core/handlers/wsgi.py", "symbol": "WSGIHandler.__call__"},
    {"repo": "django/django", "path": "django/core/handlers/exception.py", "symbol": "convert_exception_to_response"},
    {"repo": "django/django", "path": "django/utils/deprecation.py", "symbol": "MiddlewareMixin"},
    {"repo": "django/django", "path": "django/utils/deprecation.py", "symbol": "MiddlewareMixin.__call__"},
    {"repo": "django/django", "path": "django/utils/deprecation.py", "symbol": "MiddlewareMixin.__acall__"},
    {"repo": "django/django", "path": "django/core/wsgi.py", "symbol": "get_wsgi_application"},
    {"repo": "django/django", "path": "django/conf/global_settings.py", "symbol": "MIDDLEWARE"},
    {"repo": "django/django", "path": "django/core/handlers/asgi.py", "symbol": "ASGIHandler"}
  ],
  "chain": [
    {"repo": "django/django", "path": "django/core/wsgi.py", "symbol": "get_wsgi_application"},
    {"repo": "django/django", "path": "django/core/handlers/wsgi.py", "symbol": "WSGIHandler.__init__"},
    {"repo": "django/django", "path": "django/core/handlers/base.py", "symbol": "BaseHandler.load_middleware"},
    {"repo": "django/django", "path": "django/core/handlers/exception.py", "symbol": "convert_exception_to_response"},
    {"repo": "django/django", "path": "django/core/handlers/wsgi.py", "symbol": "WSGIHandler.__call__"},
    {"repo": "django/django", "path": "django/core/handlers/base.py", "symbol": "BaseHandler.get_response"},
    {"repo": "django/django", "path": "django/utils/deprecation.py", "symbol": "MiddlewareMixin.__call__"},
    {"repo": "django/django", "path": "django/core/handlers/base.py", "symbol": "BaseHandler._get_response"}
  ],
  "text": "Django's MIDDLEWARE setting processing lives almost entirely in django/django under django/core/handlers/.\n\nStack construction: BaseHandler.load_middleware() in django/core/handlers/base.py is the heart of it. It starts with the innermost handler (BaseHandler._get_response, which resolves the URL and calls the view) and iterates over reversed(settings.MIDDLEWARE) (default MIDDLEWARE = [] is declared in django/conf/global_settings.py). For each dotted path it imports the middleware factory via import_string and instantiates it as middleware(handler), so each middleware closes over the next-inner handler as its get_response callable. Each layer is wrapped in convert_exception_to_response() from django/core/handlers/exception.py so exceptions never leak between layers. Because the list is traversed in reverse, the FIRST entry in settings.MIDDLEWARE ends up as the OUTERMOST callable. The finished onion is stored as BaseHandler._middleware_chain. During the same loop, pr...

Bash Commands (4)

1. $ ls /workspace && ls /workspace/django 2>/dev/null | head

2. $ ls /workspace/django--674eda1c

3. $ ls /workspace/django--674eda1c/django/core/handlers/ /workspace/django--674eda1c/django/middleware/ /workspace/django--674eda1c/django/utils/deprecation.py

4. $ grep -n "MIDDLEWARE" /workspace/django--674eda1c/django/conf/global_settings.py; echo ---; cat /workspace/django--674eda1c/django/core/wsgi.py; echo ---; grep -n "load_middleware\|MiddlewareMixin" -r /workspace/django--674eda1c/django --include=*.py | grep -v middleware/