Merge pull request from GHSA-pghf-347x-c2gj

* Changes required to support v1.11.x branch

Pin requirements to work with python2.7.

Style corrections to get tox to pass.

Pinning requirements for tox.

Setup github test action for v1.X branch

Convert to current tox file.

Update requirements.

Django requires session middleware now.

Remove python3.4 from github actions. It's not supported.

Remove docs from tox.

Support PostgresJSON test.

Format code according to black and isort.

Skip tests that are invalid for old versions.

* Fix CVE-2021-30459 by creating signature from all data fields.

Backport of 1c6ba3c1302bf545f8356dcd26255ab7db1ec408

Create a signature based on all fields in the form and attach
to validate that the data being sent back is what the server
generated initially.

Force the values to a string for signing.

Remove hashing mechanism from forms.

* Bump to version 1.11.1

.github/workflows/test.yml

@@ -0,0 +1,210 @@
+name: Test
+
+on: [push, pull_request]
+
+jobs:
+  mysql:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      max-parallel: 5
+      matrix:
+        python-version: ['2.7', '3.5', '3.6', '3.7']
+
+    services:
+      mariadb:
+        image: mariadb:10.3
+        env:
+          MYSQL_ROOT_PASSWORD: debug_toolbar
+        options: >-
+          --health-cmd "mysqladmin ping"
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+        ports:
+        - 3306:3306
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v2
+      with:
+        python-version: ${{ matrix.python-version }}
+
+    - name: Get pip cache dir
+      id: pip-cache
+      run: |
+        echo "::set-output name=dir::$(pip cache dir)"
+
+    - name: Cache
+      uses: actions/cache@v2
+      with:
+        path: ${{ steps.pip-cache.outputs.dir }}
+        key:
+          ${{ matrix.python-version }}-v1-${{ hashFiles('**/setup.cfg') }}-${{ hashFiles('**/tox.ini') }}
+        restore-keys: |
+          ${{ matrix.python-version }}-v1-
+
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        python -m pip install --upgrade tox tox-gh-actions
+
+    - name: Test with tox
+      run: tox
+      env:
+        DB_BACKEND: mysql
+        DB_USER: root
+        DB_PASSWORD: debug_toolbar
+        DB_HOST: 127.0.0.1
+        DB_PORT: 3306
+
+    - name: Upload coverage
+      uses: codecov/codecov-action@v1
+      with:
+        name: Python ${{ matrix.python-version }}
+
+  postgres:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      max-parallel: 5
+      matrix:
+        python-version: ['2.7', '3.5', '3.6', '3.7']
+
+    services:
+      postgres:
+        image: 'postgres:9.5'
+        env:
+          POSTGRES_DB: debug_toolbar
+          POSTGRES_USER: debug_toolbar
+          POSTGRES_PASSWORD: debug_toolbar
+        ports:
+        - 5432:5432
+        options: >-
+          --health-cmd pg_isready
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v2
+      with:
+        python-version: ${{ matrix.python-version }}
+
+    - name: Get pip cache dir
+      id: pip-cache
+      run: |
+        echo "::set-output name=dir::$(pip cache dir)"
+
+    - name: Cache
+      uses: actions/cache@v2
+      with:
+        path: ${{ steps.pip-cache.outputs.dir }}
+        key:
+          ${{ matrix.python-version }}-v1-${{ hashFiles('**/setup.cfg') }}-${{ hashFiles('**/tox.ini') }}
+        restore-keys: |
+          ${{ matrix.python-version }}-v1-
+
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        python -m pip install --upgrade tox tox-gh-actions
+
+    - name: Test with tox
+      run: tox
+      env:
+        DB_BACKEND: postgresql
+        DB_HOST: localhost
+        DB_PORT: 5432
+
+    - name: Upload coverage
+      uses: codecov/codecov-action@v1
+      with:
+        name: Python ${{ matrix.python-version }}
+
+  sqlite:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      max-parallel: 5
+      matrix:
+        python-version: ['2.7', '3.5', '3.6', '3.7']
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v2
+      with:
+        python-version: ${{ matrix.python-version }}
+
+    - name: Get pip cache dir
+      id: pip-cache
+      run: |
+        echo "::set-output name=dir::$(pip cache dir)"
+
+    - name: Cache
+      uses: actions/cache@v2
+      with:
+        path: ${{ steps.pip-cache.outputs.dir }}
+        key:
+          ${{ matrix.python-version }}-v1-${{ hashFiles('**/setup.cfg') }}-${{ hashFiles('**/tox.ini') }}
+        restore-keys: |
+          ${{ matrix.python-version }}-v1-
+
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        python -m pip install --upgrade tox tox-gh-actions
+
+    - name: Test with tox
+      run: tox
+      env:
+        DB_BACKEND: sqlite3
+        DB_NAME: ":memory:"
+
+    - name: Upload coverage
+      uses: codecov/codecov-action@v1
+      with:
+        name: Python ${{ matrix.python-version }}
+
+  lint:
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v2
+      with:
+        python-version: 3.7
+
+    - name: Get pip cache dir
+      id: pip-cache
+      run: |
+        echo "::set-output name=dir::$(pip cache dir)"
+
+    - name: Cache
+      uses: actions/cache@v2
+      with:
+        path: ${{ steps.pip-cache.outputs.dir }}
+        key:
+          ${{ matrix.python-version }}-v1-${{ hashFiles('**/setup.cfg') }}-${{ hashFiles('**/tox.ini') }}
+        restore-keys: |
+          ${{ matrix.python-version }}-v1-
+
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        python -m pip install --upgrade tox
+
+    - name: Test with tox
+      run: tox -e style,readme
+

Makefile

@@ -1,13 +1,14 @@
 .PHONY: flake8 example test coverage translatable_strings update_translations
 
 style:
-	isort -rc debug_toolbar example tests
-	black debug_toolbar example tests setup.py
-	flake8 debug_toolbar example tests
+	isort .
+	black --target-version=py27 .
+	flake8
 
 style_check:
-	isort -rc -c debug_toolbar example tests
-	black --check debug_toolbar example tests setup.py
+	isort -c .
+	black --target-version=py27 --check .
+	flake8
 
 flake8:
 	flake8 debug_toolbar example tests

README.rst

@@ -31,7 +31,7 @@ Here's a screenshot of the toolbar in action:
 In addition to the built-in panels, a number of third-party panels are
 contributed by the community.
 
-The current version of the Debug Toolbar is 1.11. It works on Django ≥ 1.11.
+The current version of the Debug Toolbar is 1.11.1. It works on Django ≥ 1.11.
 
 Documentation, including installation and configuration instructions, is
 available at https://django-debug-toolbar.readthedocs.io/.

debug_toolbar/decorators.py

@@ -1,6 +1,6 @@
 import functools
 
-from django.http import Http404
+from django.http import Http404, HttpResponseBadRequest
 
 
 def require_show_toolbar(view):
@@ -15,3 +15,21 @@ def inner(request, *args, **kwargs):
         return view(request, *args, **kwargs)
 
     return inner
+
+
+def signed_data_view(view):
+    """Decorator that handles unpacking a signed data form"""
+
+    @functools.wraps(view)
+    def inner(request, *args, **kwargs):
+        from debug_toolbar.forms import SignedDataForm
+
+        data = request.GET if request.method == "GET" else request.POST
+        signed_form = SignedDataForm(data)
+        if signed_form.is_valid():
+            return view(
+                request, *args, verified_data=signed_form.verified_data(), **kwargs
+            )
+        return HttpResponseBadRequest("Invalid signature")
+
+    return inner

debug_toolbar/forms.py

@@ -0,0 +1,55 @@
+import json
+from collections import OrderedDict
+
+from django import forms
+from django.core import signing
+from django.core.exceptions import ValidationError
+from django.utils.encoding import force_str
+
+
+class SignedDataForm(forms.Form):
+    """Helper form that wraps a form to validate its contents on post.
+
+    class PanelForm(forms.Form):
+        # fields
+
+    On render:
+        form = SignedDataForm(initial=PanelForm(initial=data).initial)
+
+    On POST:
+        signed_form = SignedDataForm(request.POST)
+        if signed_form.is_valid():
+            panel_form = PanelForm(signed_form.verified_data)
+            if panel_form.is_valid():
+                # Success
+    Or wrap the FBV with ``debug_toolbar.decorators.signed_data_view``
+    """
+
+    salt = "django_debug_toolbar"
+    signed = forms.CharField(required=True, widget=forms.HiddenInput)
+
+    def __init__(self, *args, **kwargs):
+        initial = kwargs.pop("initial", None)
+        if initial:
+            initial = {"signed": self.sign(initial)}
+        super(SignedDataForm, self).__init__(*args, initial=initial, **kwargs)
+
+    def clean_signed(self):
+        try:
+            verified = json.loads(
+                signing.Signer(salt=self.salt).unsign(self.cleaned_data["signed"])
+            )
+            return verified
+        except signing.BadSignature:
+            raise ValidationError("Bad signature")
+
+    def verified_data(self):
+        return self.is_valid() and self.cleaned_data["signed"]
+
+    @classmethod
+    def sign(cls, data):
+        # Sort the data by the keys to create a fixed ordering.
+        items = sorted(data.items(), key=lambda item: item[0])
+        return signing.Signer(salt=cls.salt).sign(
+            json.dumps(OrderedDict((key, force_str(value)) for key, value in items))
+        )