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codeql/python/ql/test/library-tests/web/django/views_2x_3x.py
Rasmus Wriedt Larsen 09a2a6cdfd Python: Fix django re_path kwarg test
Since it was using the wrong keyword argument name before :D
2020-10-16 11:12:12 +02:00

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4.4 KiB
Python

"""testing views for Django 2.x and 3.x"""
from django.urls import path, re_path
from django.http import HttpResponse, HttpResponseRedirect, JsonResponse, HttpResponseNotFound
from django.views import View
def url_match_xss(request, foo, bar, no_taint=None):
return HttpResponse('url_match_xss: {} {}'.format(foo, bar))
def get_params_xss(request):
return HttpResponse(request.GET.get("untrusted"))
def post_params_xss(request):
return HttpResponse(request.POST.get("untrusted"))
def http_resp_write(request):
rsp = HttpResponse()
rsp.write(request.GET.get("untrusted"))
return rsp
class Foo(object):
# Note: since Foo is used as the super type in a class view, it will be able to handle requests.
def post(self, request, untrusted):
return HttpResponse('Foo post: {}'.format(untrusted))
class ClassView(View, Foo):
def get(self, request, untrusted):
return HttpResponse('ClassView get: {}'.format(untrusted))
def show_articles(request, page_number=1):
page_number = int(page_number)
return HttpResponse('articles page: {}'.format(page_number))
def xxs_positional_arg(request, arg0, arg1, no_taint=None):
return HttpResponse('xxs_positional_arg: {} {}'.format(arg0, arg1))
urlpatterns = [
re_path(r'^url_match/(?P<foo>[^/]+)/(?P<bar>[^/]+)$', url_match_xss),
re_path(r'^get_params$', get_params_xss),
re_path(r'^post_params$', post_params_xss),
re_path(r'^http_resp_write$', http_resp_write),
re_path(r'^class_view/(?P<untrusted>.+)$', ClassView.as_view()),
# one pattern to support `articles/page-<n>` and ensuring that articles/ goes to page-1
re_path(r'articles/^(?:page-(?P<page_number>\d+)/)?$', show_articles),
# passing as positional argument is not the recommended way of doing things, but it is certainly
# possible
re_path(r'^([^/]+)/(?:foo|bar)/([^/]+)$', xxs_positional_arg, name='xxs_positional_arg'),
]
# Show we understand the keyword arguments to from django.urls.re_path
def re_path_kwargs(request):
return HttpResponse('re_path_kwargs')
urlpatterns = [
re_path(view=re_path_kwargs, route=r'^specifying-as-kwargs-is-not-a-problem$')
]
################################################################################
# Using path
################################################################################
# saying page_number is an externally controlled *string* is a bit strange, when we have an int converter :O
def page_number(request, page_number=1):
return HttpResponse('page_number: {}'.format(page_number))
def foo_bar_baz(request, foo, bar, baz):
return HttpResponse('foo_bar_baz: {} {} {}'.format(foo, bar, baz))
def path_kwargs(request, foo, bar):
return HttpResponse('path_kwargs: {} {} {}'.format(foo, bar))
def not_valid_identifier(request):
return HttpResponse('<foo!>')
urlpatterns = [
path('articles/', page_number),
path('articles/page-<int:page_number>', page_number),
path('<int:foo>/<str:bar>/<baz>', foo_bar_baz, name='foo-bar-baz'),
path(view=path_kwargs, route='<foo>/<bar>'),
# We should not report there is a request parameter called `not_valid!`
path('not_valid/<not_valid!>', not_valid_identifier),
]
# Not an XSS sink, since the Content-Type is not "text/html"
# FP reported in https://github.com/github/codeql-python-team/issues/38
def fp_json_response(request):
# implicitly sets Content-Type to "application/json"
return JsonResponse({"foo": request.GET.get("foo")})
# Not an XSS sink, since the Content-Type is not "text/html"
def fp_manual_json_response(request):
json_data = '{"json": "{}"}'.format(request.GET.get("foo"))
return HttpResponse(json_data, content_type="application/json")
# Not an XSS sink, since the Content-Type is not "text/html"
def fp_manual_content_type(reuqest):
return HttpResponse('<img src="0" onerror="alert(1)">', content_type="text/plain")
# XSS FP reported in https://github.com/github/codeql/issues/3466
# Note: This should be a open-redirect sink, but not a XSS sink.
def fp_redirect(request):
return HttpResponseRedirect(request.GET.get("next"))
# Ensure that simple subclasses are still vuln to XSS
def tp_not_found(request):
return HttpResponseNotFound(request.GET.get("name"))
# Ensure we still have a XSS sink when manually setting the content_type to HTML
def tp_manual_response_type(request):
return HttpResponse(request.GET.get("name"), content_type="text/html; charset=utf-8")