Version 1.3.5.dev0

Bumps [urllib3](https://github.com/urllib3/urllib3) from 1.26.17 to 1.26.18.
- [Release notes](https://github.com/urllib3/urllib3/releases)
- [Changelog](https://github.com/urllib3/urllib3/blob/main/CHANGES.rst)
- [Commits](https://github.com/urllib3/urllib3/compare/1.26.17...1.26.18)

---
updated-dependencies:
- dependency-name: urllib3
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,26 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**IMPORTANT**: If you have a question, or you are not sure if you have found a bug in this package, then you are in the wrong place. Hit back in your web browser, and then open a GitHub Discussion instead. Likewise, if you are unable to provide the information requested below, open a discussion to troubleshoot your issue.
+
+**Describe the bug**
+A clear and concise description of what the bug is. If you are getting errors, please include the complete error message, including the stack trace.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,5 @@
+blank_issues_enabled: false
+contact_links:
+  - name: GitHub Discussions
+    url: https://github.com/miguelgrinberg/microdot/discussions
+    about: Ask questions here.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,20 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.

.github/workflows/tests.yml

@@ -11,8 +11,8 @@ jobs:
     name: lint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
-      - uses: actions/setup-python@v2
+      - uses: actions/setup-python@v3
       - run: python -m pip install --upgrade pip wheel
       - run: pip install tox tox-gh-actions
       - run: tox -eflake8
@@ -25,8 +25,8 @@ jobs:
       fail-fast: false
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
-      - uses: actions/setup-python@v2
+      - uses: actions/setup-python@v3
         with:
           python-version: ${{ matrix.python }}
       - run: python -m pip install --upgrade pip wheel
@@ -36,8 +36,8 @@ jobs:
     name: tests-micropython
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
-      - uses: actions/setup-python@v2
+      - uses: actions/setup-python@v3
       - run: python -m pip install --upgrade pip wheel
       - run: pip install tox tox-gh-actions
       - run: tox -eupy
@@ -45,18 +45,21 @@ jobs:
     name: coverage
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
-      - uses: actions/setup-python@v2
+      - uses: actions/setup-python@v3
       - run: python -m pip install --upgrade pip wheel
-      - run: pip install tox tox-gh-actions codecov
+      - run: pip install tox tox-gh-actions
       - run: tox
-      - run: codecov
+      - uses: codecov/codecov-action@v3
+        with:
+          files: ./coverage.xml
+          fail_ci_if_error: true
   benchmark:
     name: benchmark
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
-      - uses: actions/setup-python@v2
+      - uses: actions/setup-python@v3
       - run: python -m pip install --upgrade pip wheel
       - run: pip install tox tox-gh-actions
       - run: tox -ebenchmark

.gitignore

@@ -103,3 +103,8 @@ venv.bak/
 
 # mypy
 .mypy_cache/
+
+# other
+*.der
+*.pem
+*_txt.py

.readthedocs.yaml

@@ -0,0 +1,16 @@
+version: 2
+
+build:
+  os: ubuntu-22.04
+  tools:
+    python: "3.11"
+
+sphinx:
+  configuration: docs/conf.py
+
+python:
+  install:
+    - method: pip
+      path: .
+      extra_requirements:
+        - docs

CHANGES.md

@@ -1,5 +1,46 @@
 # Microdot change log
 
+**Release 1.3.4** - 2023-11-08
+
+- Handle change in `wait_closed()` behavior in Python 3.12 [#177](https://github.com/miguelgrinberg/microdot/issues/177) ([commit](https://github.com/miguelgrinberg/microdot/commit/5550b20cdd347d59e2aa68f6ebf9e9abffaff9fc))
+- Added missing request argument in some documentation examples [#163](https://github.com/miguelgrinberg/microdot/issues/163) ([commit](https://github.com/miguelgrinberg/microdot/commit/744548f8dc33a72512b34c4001ee9c6c1edd22ee))
+- Fix minor documentation typos [#161](https://github.com/miguelgrinberg/microdot/issues/161) ([commit](https://github.com/miguelgrinberg/microdot/commit/2e4911d10826cbb3914de4a45e495c3be36543fa)) (thanks **Andy Piper**!)
+
+**Release 1.3.3** - 2023-07-16
+
+- Handle query string arguments without value [#149](https://github.com/miguelgrinberg/microdot/issues/149) ([commit](https://github.com/miguelgrinberg/microdot/commit/3554bc91cb1523efa5b66fe3ef173f8e86e8c2a0))
+- Support empty responses with ASGI adapter ([commit](https://github.com/miguelgrinberg/microdot/commit/e09e9830f43af41d38775547637558494151a385))
+- Added CORS extension to Python package ([commit](https://github.com/miguelgrinberg/microdot/commit/304ca2ef6881fe718126b3e308211e760109d519))
+- Document access to WSGI and ASGI attributes [#153](https://github.com/miguelgrinberg/microdot/issues/153) ([commit](https://github.com/miguelgrinberg/microdot/commit/d99df2c4010ab70c60b86ab334d656903e04eb26))
+- Upgrade micropython tests to use v1.20 ([commit](https://github.com/miguelgrinberg/microdot/commit/e0f0565551966ee0238a5a1819c78a13639ad704))
+
+**Release 1.3.2** - 2023-06-13
+
+- In ASGI, return headers as strings and not binary [#144](https://github.com/miguelgrinberg/microdot/issues/144) ([commit](https://github.com/miguelgrinberg/microdot/commit/e92310fa55bbffcdcbb33f560e27c3579d7ac451))
+- Incorrect import in `static_async.py` example ([commit](https://github.com/miguelgrinberg/microdot/commit/c07a53943508e64baea160748e67efc92e75b036))
+
+**Release 1.3.1** - 2023-05-21
+
+- Support negative numbers for int path components [#137](https://github.com/miguelgrinberg/microdot/issues/137) ([commit](https://github.com/miguelgrinberg/microdot/commit/a0dd7c8ab6d681932324e56ed101aba861a105a0))
+- Use a more conservative default for socket timeout [#130](https://github.com/miguelgrinberg/microdot/issues/130) ([commit](https://github.com/miguelgrinberg/microdot/commit/239cf4ff37268a7e2467b93be44fe9f91cee8aee))
+- More robust check for socket timeout error code [#106](https://github.com/miguelgrinberg/microdot/issues/106) ([commit](https://github.com/miguelgrinberg/microdot/commit/efec9f14be7b6f3451e4d1d0fe7e528ce6ca74dc))
+- WebSocket error when handling PING packet [#129](https://github.com/miguelgrinberg/microdot/issues/129) ([commit](https://github.com/miguelgrinberg/microdot/commit/87cd098f66e24bed6bbad29b1490a129e355bbb3))
+- Explicitly set UTF-8 encoding for HTML files in examples [#132](https://github.com/miguelgrinberg/microdot/issues/132) ([commit](https://github.com/miguelgrinberg/microdot/commit/f81de6d9582f4905b9c2735d3c639b92d7e77994))
+
+**Release 1.3.0** - 2023-04-08
+
+- Cross-Origin Resource Sharing (CORS) extension [#45](https://github.com/miguelgrinberg/microdot/issues/45) ([commit](https://github.com/miguelgrinberg/microdot/commit/67798f7dbffb30018ab4b62a9aaa297f63bc9e64))
+- Respond to `HEAD` and `OPTIONS` requests ([commit](https://github.com/miguelgrinberg/microdot/commit/6a31f89673518e79fef5659c04e609b7976a5e34))
+- Tolerate slightly invalid formats in query strings [#126](https://github.com/miguelgrinberg/microdot/issues/126) ([commit](https://github.com/miguelgrinberg/microdot/commit/a1b061656fa19dae583951596b0f1f0603652a56))
+- Support compressed files in `send_file()` [#93](https://github.com/miguelgrinberg/microdot/issues/93) ([commit](https://github.com/miguelgrinberg/microdot/commit/daf1001ec55ab38e6cdfee4931729a3b7506858b))
+- Add `max_age` argument to `send_file()` ([commit](https://github.com/miguelgrinberg/microdot/commit/e684ee32d91d3e2ab9569bb5fd342986c010ffeb))
+- Add `update()` method to `NoCaseDict` class ([commit](https://github.com/miguelgrinberg/microdot/commit/ea6766cea96b756b36ed777f9c1b6a6680db09ba))
+- Set exit code to 1 for failed MicroPython test runs ([commit](https://github.com/miguelgrinberg/microdot/commit/a350e8fd1e55fac12c9e5b909cfa82d880b177ef))
+
+**Release 1.2.4** - 2023-03-03
+
+- One more attempt to correct build issues ([commit](https://github.com/miguelgrinberg/microdot/commit/cb39898829f4edc233ab4e7ba3f7ef3c5c50f196))
+
 **Release 1.2.3** - 2023-03-03
 
 - Corrected a problem with previous build.

MANIFEST.in

@@ -0,0 +1,5 @@
+include README.md LICENSE tox.ini
+recursive-include docs *
+recursive-exclude docs/_build *
+recursive-include tests *
+exclude **/*.pyc

docs/api.rst

@@ -52,6 +52,12 @@ API Reference
 .. automodule:: microdot_session
    :members:
 
+``microdot_cors`` module
+------------------------
+
+.. automodule:: microdot_cors
+   :members:
+
 ``microdot_websocket`` module
 ------------------------------
 

docs/extensions.rst

@@ -137,8 +137,8 @@ subdirectory. This location can be changed with the
 .. note::
     The Jinja extension is not compatible with MicroPython.
 
-Maintaing Secure User Sessions
+Maintaining Secure User Sessions
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 .. list-table::
    :align: left
@@ -208,6 +208,42 @@ Example::
         delete_session(req)
         return redirect('/')
 
+Cross-Origin Resource Sharing (CORS)
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. list-table::
+   :align: left
+
+   * - Compatibility
+     - | CPython & MicroPython
+
+   * - Required Microdot source files
+     - | `microdot.py <https://github.com/miguelgrinberg/microdot/tree/main/src/microdot.py>`_
+       | `microdot_cors.py <https://github.com/miguelgrinberg/microdot/tree/main/src/microdot_cors.py>`_
+
+   * - Required external dependencies
+     - | None
+
+   * - Examples
+     - | `cors.py <https://github.com/miguelgrinberg/microdot/blob/main/examples/cors/cors.py>`_
+
+The CORS extension provides support for `Cross-Origin Resource Sharing
+(CORS) <https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS>`_. CORS is a
+mechanism that allows web applications running on different origins to access
+resources from each other. For example, a web application running on
+``https://example.com`` can access resources from ``https://api.example.com``.
+
+To enable CORS support, create an instance of the
+:class:`CORS <microdot_cors.CORS>` class and configure the desired options.
+Example::
+
+    from microdot import Microdot
+    from microdot_cors import CORS
+
+    app = Microdot()
+    cors = CORS(app, allowed_origins=['https://example.com'],
+                allow_credentials=True)
+
 WebSocket Support
 ~~~~~~~~~~~~~~~~~
 
@@ -450,6 +486,9 @@ web application using the Gunicorn web server::
 
     gunicorn test:app
 
+When using this WSGI adapter, the ``environ`` dictionary provided by the web
+server is available to request handlers as ``request.environ``.
+
 Using an ASGI Web Server
 ^^^^^^^^^^^^^^^^^^^^^^^^
 
@@ -493,3 +532,5 @@ web application using the Uvicorn web server::
 
     uvicorn test:app
 
+When using this ASGI adapter, the ``scope`` dictionary provided by the web
+server is available to request handlers as ``request.asgi_scope``.

docs/intro.rst

@@ -301,7 +301,7 @@ expected to return an updated response object.
 
 .. note::
    The :ref:`request.g <The "g" Object>` object is a special object that allows
-   the before and after request handlers, as well sa the route function to
+   the before and after request handlers, as well as the route function to
    share data during the life of the request.
 
 Error Handlers
@@ -500,7 +500,7 @@ contents as a file-like object.
 Cookies
 ^^^^^^^
 
-Cookies that are sent by the client are made available throught the
+Cookies that are sent by the client are made available through the
 :attr:`cookies <microdot.Request.cookies>` attribute of the request object in
 dictionary form.
 
@@ -595,7 +595,7 @@ always returned to the client in the response body::
 In the above example, Microdot issues a standard 200 status code response, and
 inserts the necessary headers.
 
-The applicaton can provide its own status code as a second value returned from
+The application can provide its own status code as a second value returned from
 the route. The example below returns a 202 status code::
 
     @app.get('/')
@@ -611,7 +611,7 @@ The next example returns an HTML response, instead of a default text response::
         return '<h1>Hello, World!</h1>', 202, {'Content-Type': 'text/html'}
 
 If the application needs to return custom headers, but does not need to change
-the default status code, then it can return two values, omitting the stauts
+the default status code, then it can return two values, omitting the status
 code::
 
     @app.get('/')
@@ -662,6 +662,15 @@ object for a file::
         def index(request):
             return send_file('/static/index.html')
 
+A suggested caching duration can be returned to the client in the ``max_age``
+argument::
+
+        from microdot import send_file
+
+        @app.get('/')
+        def image(request):
+            return send_file('/static/image.jpg', max_age=3600)  # in seconds
+
 .. note::
    Unlike other web frameworks, Microdot does not automatically configure a
    route to serve static files. The following is an example route that can be
@@ -673,7 +682,7 @@ object for a file::
             if '..' in path:
                 # directory traversal is not allowed
                 return 'Not found', 404
-            return send_file('static/' + path)
+            return send_file('static/' + path, max_age=86400)
 
 Streaming Responses
 ^^^^^^^^^^^^^^^^^^^
@@ -744,7 +753,7 @@ Another option is to create a response object directly in the route function::
    Standard cookies do not offer sufficient privacy and security controls, so
    never store sensitive information in them unless you are adding additional
    protection mechanisms such as encryption or cryptographic signing. The
-   :ref:`session <Maintaing Secure User Sessions>` extension implements signed
+   :ref:`session <Maintaining Secure User Sessions>` extension implements signed
    cookies that prevent tampering by malicious actors.
 
 Concurrency

examples/benchmark/requirements.txt

@@ -1,11 +1,11 @@
 aiofiles==0.8.0
 anyio==3.6.1
 blinker==1.5
-certifi==2022.12.7
+certifi==2023.7.22
 charset-normalizer==2.1.0
 click==8.1.3
 fastapi==0.79.0
-Flask==2.2.1
+Flask==2.3.2
 gunicorn==20.1.0
 h11==0.13.0
 h2==4.1.0
@@ -22,12 +22,12 @@ priority==2.0.0
 psutil==5.9.1
 pydantic==1.9.1
 quart==0.18.0
-requests==2.28.1
+requests==2.31.0
 sniffio==1.2.0
-starlette==0.25.0
+starlette==0.27.0
 toml==0.10.2
 typing_extensions==4.3.0
-urllib3==1.26.11
+urllib3==1.26.18
 uvicorn==0.18.2
 Werkzeug==2.2.3
 wsproto==1.1.0

examples/cors/README.md

@@ -0,0 +1 @@
+This directory contains Cross-Origin Resource Sharing (CORS) examples.

examples/cors/app.py

@@ -0,0 +1,14 @@
+from microdot import Microdot
+from microdot_cors import CORS
+
+app = Microdot()
+CORS(app, allowed_origins=['https://example.org'], allow_credentials=True)
+
+
+@app.route('/')
+def index(request):
+    return 'Hello World!'
+
+
+if __name__ == '__main__':
+    app.run()

examples/gpio/gpio.html

@@ -2,6 +2,7 @@
 <html>
     <head>
         <title>Microdot GPIO Example</title>
+        <meta charset="UTF-8">
         <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
         <script>
             function getCookie(name) {

examples/hello/hello.py

@@ -6,6 +6,7 @@ htmldoc = '''<!DOCTYPE html>
 <html>
     <head>
         <title>Microdot Example Page</title>
+        <meta charset="UTF-8">
     </head>
     <body>
         <div>

examples/hello/hello_asgi.py

@@ -6,6 +6,7 @@ htmldoc = '''<!DOCTYPE html>
 <html>
     <head>
         <title>Microdot Example Page</title>
+        <meta charset="UTF-8">
     </head>
     <body>
         <div>

examples/hello/hello_async.py

@@ -6,6 +6,7 @@ htmldoc = '''<!DOCTYPE html>
 <html>
     <head>
         <title>Microdot Example Page</title>
+        <meta charset="UTF-8">
     </head>
     <body>
         <div>

examples/hello/hello_wsgi.py

@@ -6,6 +6,7 @@ htmldoc = '''<!DOCTYPE html>
 <html>
     <head>
         <title>Microdot Example Page</title>
+        <meta charset="UTF-8">
     </head>
     <body>
         <div>

examples/sessions/login.py

@@ -6,6 +6,7 @@ BASE_TEMPLATE = '''<!doctype html>
 <html>
   <head>
     <title>Microdot login example</title>
+    <meta charset="UTF-8">
   </head>
   <body>
     <h1>Microdot login example</h1>
@@ -17,7 +18,7 @@ LOGGED_OUT = '''<p>You are not logged in.</p>
 <form method="POST">
   <p>
     Username:
-    <input type="text" name="username" autofocus />
+    <input name="username" autofocus />
   </p>
   <input type="submit" value="Submit" />
 </form>'''

examples/static/gzstatic.py

@@ -0,0 +1,20 @@
+from microdot import Microdot, send_file
+
+app = Microdot()
+
+
+@app.route('/')
+def index(request):
+    return send_file('gzstatic/index.html', compressed=True,
+                     file_extension='.gz')
+
+
+@app.route('/static/<path:path>')
+def static(request, path):
+    if '..' in path:
+        # directory traversal is not allowed
+        return 'Not found', 404
+    return send_file('gzstatic/' + path, compressed=True, file_extension='.gz')
+
+
+app.run(debug=True)

examples/static/static/index.html

@@ -2,6 +2,7 @@
 <html>
   <head>
     <title>Static File Serving Demo</title>
+    <meta charset="UTF-8">
   </head>
   <body>
     <h1>Static File Serving Demo</h1>

examples/static/static_async.py

@@ -1,5 +1,4 @@
-from microdot_asyncio import Microdot
+from microdot_asyncio import Microdot, send_file
-from microdot import send_file
 app = Microdot()
 
 

examples/streaming/video_stream.py

@@ -19,6 +19,7 @@ def index(request):
 <html>
   <head>
     <title>Microdot Video Streaming</title>
+    <meta charset="UTF-8">
   </head>
   <body>
     <h1>Microdot Video Streaming</h1>

examples/streaming/video_stream_async.py

@@ -21,6 +21,7 @@ def index(request):
 <html>
   <head>
     <title>Microdot Video Streaming</title>
+    <meta charset="UTF-8">
   </head>
   <body>
     <h1>Microdot Video Streaming</h1>

examples/templates/jinja/templates/index.html

@@ -2,6 +2,7 @@
 <html>
   <head>
     <title>Microdot + Jinja example</title>
+    <meta charset="UTF-8">
   </head>
   <body>
     <h1>Microdot + Jinja example</h1>

examples/templates/utemplate/templates/index.html

@@ -3,6 +3,7 @@
 <html>
   <head>
     <title>Microdot + uTemplate example</title>
+    <meta charset="UTF-8">
   </head>
   <body>
     <h1>Microdot + uTemplate example</h1>

examples/tls/hello_async_tls.py

@@ -7,6 +7,7 @@ htmldoc = '''<!DOCTYPE html>
 <html>
     <head>
         <title>Microdot Example Page</title>
+        <meta charset="UTF-8">
     </head>
     <body>
         <div>

examples/tls/hello_tls.py

@@ -8,6 +8,7 @@ htmldoc = '''<!DOCTYPE html>
 <html>
     <head>
         <title>Microdot Example Page</title>
+        <meta charset="UTF-8">
     </head>
     <body>
         <div>

examples/tls/index.html

@@ -2,6 +2,7 @@
 <html>
   <head>
     <title>Microdot TLS WebSocket Demo</title>
+    <meta charset="UTF-8">
   </head>
   <body>
     <h1>Microdot TLS WebSocket Demo</h1>

examples/uploads/index.html

@@ -2,6 +2,7 @@
 <html>
   <head>
     <title>Microdot Upload Example</title>
+    <meta charset="UTF-8">
   </head>
   <body>
     <h1>Microdot Upload Example</h1>

examples/websocket/index.html

@@ -2,6 +2,7 @@
 <html>
   <head>
     <title>Microdot WebSocket Demo</title>
+    <meta charset="UTF-8">
   </head>
   <body>
     <h1>Microdot WebSocket Demo</h1>

pyproject.toml

@@ -1,6 +1,57 @@
+[project]
+name = "microdot"
+version = "1.3.5.dev0"
+authors = [
+    { name = "Miguel Grinberg", email = "miguel.grinberg@gmail.com" },
+]
+description = "The impossibly small web framework for MicroPython"
+classifiers = [
+    "Environment :: Web Environment",
+    "Intended Audience :: Developers",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: Implementation :: MicroPython",
+    "License :: OSI Approved :: MIT License",
+    "Operating System :: OS Independent",
+]
+
+[project.readme]
+file = "README.md"
+content-type = "text/markdown"
+
+[project.urls]
+Homepage = "https://github.com/miguelgrinberg/microdot"
+"Bug Tracker" = "https://github.com/miguelgrinberg/microdot/issues"
+
+[project.optional-dependencies]
+docs = [
+    "sphinx",
+]
+
+[tool.setuptools]
+zip-safe = false
+include-package-data = true
+py-modules = [
+    "microdot",
+    "microdot_asyncio",
+    "microdot_utemplate",
+    "microdot_jinja",
+    "microdot_session",
+    "microdot_cors",
+    "microdot_websocket",
+    "microdot_websocket_alt",
+    "microdot_asyncio_websocket",
+    "microdot_test_client",
+    "microdot_asyncio_test_client",
+    "microdot_wsgi",
+    "microdot_asgi",
+    "microdot_asgi_websocket",
+]
+
+[tool.setuptools.package-dir]
+"" = "src"
+
 [build-system]
 requires = [
-    "setuptools>=42",
+    "setuptools>=61.2",
-    "wheel"
 ]
 build-backend = "setuptools.build_meta"

run_tests.py

@@ -6,4 +6,5 @@ sys.path.insert(3, 'libs/micropython')
 
 import unittest
 
-unittest.main('tests')
+if not unittest.main('tests').wasSuccessful():
+    sys.exit(1)

setup.cfg

@@ -1,43 +0,0 @@
-[metadata]
-name = microdot
-version = 1.2.3
-author = Miguel Grinberg
-author_email = miguel.grinberg@gmail.com
-description = The impossibly small web framework for MicroPython
-long_description = file: README.md
-long_description_content_type = text/markdown
-url = https://github.com/miguelgrinberg/microdot
-project_urls =
-    Bug Tracker = https://github.com/miguelgrinberg/microdot/issues
-classifiers =
-    Environment :: Web Environment
-    Intended Audience :: Developers
-    Programming Language :: Python :: 3
-    Programming Language :: Python :: Implementation :: MicroPython
-    License :: OSI Approved :: MIT License
-    Operating System :: OS Independent
-
-[options]
-zip_safe = False
-include_package_data = True
-package_dir =
-    = src
-packages = find:
-
-[options.packages.find]
-where = src
-
-#py_modules =
-#    microdot
-#    microdot_asyncio
-#    microdot_utemplate
-#    microdot_jinja
-#    microdot_session
-#    microdot_websocket
-#    microdot_websocket_alt
-#    microdot_asyncio_websocket
-#    microdot_test_client
-#    microdot_asyncio_test_client
-#    microdot_wsgi
-#    microdot_asgi
-#    microdot_asgi_websocket

setup.py

@@ -1,3 +0,0 @@
-import setuptools
-
-setuptools.setup()

src/microdot.py

@@ -146,6 +146,10 @@ class NoCaseDict(dict):
         kl = key.lower()
         return super().get(self.keymap.get(kl, kl), default)
 
+    def update(self, other_dict):
+        for key, value in other_dict.items():
+            self[key] = value
+
 
 def mro(cls):  # pragma: no cover
     """Return the method resolution order of a class.
@@ -304,8 +308,9 @@ class Request():
 
     #: Specify a suggested read timeout to use when reading the request. Set to
     #: 0 to disable the use of a timeout. This timeout should be considered a
-    #: suggestion only, as some platforms may not support it.
+    #: suggestion only, as some platforms may not support it. The default is
-    socket_read_timeout = 0.1
+    #: 1 second.
+    socket_read_timeout = 1
 
     class G:
         pass
@@ -399,13 +404,15 @@ class Request():
         data = MultiDict()
         if len(urlencoded) > 0:
             if isinstance(urlencoded, str):
-                for k, v in [pair.split('=', 1)
+                for kv in [pair.split('=', 1)
-                             for pair in urlencoded.split('&')]:
+                           for pair in urlencoded.split('&') if pair]:
-                    data[urldecode_str(k)] = urldecode_str(v)
+                    data[urldecode_str(kv[0])] = urldecode_str(kv[1]) \
+                        if len(kv) > 1 else ''
             elif isinstance(urlencoded, bytes):  # pragma: no branch
-                for k, v in [pair.split(b'=', 1)
+                for kv in [pair.split(b'=', 1)
-                             for pair in urlencoded.split(b'&')]:
+                           for pair in urlencoded.split(b'&') if pair]:
-                    data[urldecode_bytes(k)] = urldecode_bytes(v)
+                    data[urldecode_bytes(kv[0])] = urldecode_bytes(kv[1]) \
+                        if len(kv) > 1 else b''
         return data
 
     @property
@@ -525,6 +532,10 @@ class Response():
     #: ``Content-Type`` header.
     default_content_type = 'text/plain'
 
+    #: The default cache control max age used by :meth:`send_file`. A value
+    #: of ``None`` means that no ``Cache-Control`` header is added.
+    default_send_file_max_age = None
+
     #: Special response used to signal that a response does not need to be
     #: written to the client. Used to exit WebSocket connections cleanly.
     already_handled = None
@@ -544,6 +555,7 @@ class Response():
         else:
             # this applies to bytes, file-like objects or generators
             self.body = body
+        self.is_head = False
 
     def set_cookie(self, cookie, value, path=None, domain=None, expires=None,
                    max_age=None, secure=False, http_only=False):
@@ -608,19 +620,20 @@ class Response():
         stream.write(b'\r\n')
 
         # body
-        can_flush = hasattr(stream, 'flush')
+        if not self.is_head:
-        try:
+            can_flush = hasattr(stream, 'flush')
-            for body in self.body_iter():
+            try:
-                if isinstance(body, str):  # pragma: no cover
+                for body in self.body_iter():
-                    body = body.encode()
+                    if isinstance(body, str):  # pragma: no cover
-                stream.write(body)
+                        body = body.encode()
-                if can_flush:  # pragma: no cover
+                    stream.write(body)
-                    stream.flush()
+                    if can_flush:  # pragma: no cover
-        except OSError as exc:  # pragma: no cover
+                        stream.flush()
-            if exc.errno in MUTED_SOCKET_ERRORS:
+            except OSError as exc:  # pragma: no cover
-                pass
+                if exc.errno in MUTED_SOCKET_ERRORS:
-            else:
+                    pass
-                raise
+                else:
+                    raise
 
     def body_iter(self):
         if self.body:
@@ -651,7 +664,9 @@ class Response():
         return cls(status_code=status_code, headers={'Location': location})
 
     @classmethod
-    def send_file(cls, filename, status_code=200, content_type=None):
+    def send_file(cls, filename, status_code=200, content_type=None,
+                  stream=None, max_age=None, compressed=False,
+                  file_extension=''):
         """Send file contents in a response.
 
         :param filename: The filename of the file.
@@ -659,7 +674,25 @@ class Response():
                             default is 302.
         :param content_type: The ``Content-Type`` header to use in the
                              response. If omitted, it is generated
-                             automatically from the file extension.
+                             automatically from the file extension of the
+                             ``filename`` parameter.
+        :param stream: A file-like object to read the file contents from. If
+                       a stream is given, the ``filename`` parameter is only
+                       used when generating the ``Content-Type`` header.
+        :param max_age: The ``Cache-Control`` header's ``max-age`` value in
+                        seconds. If omitted, the value of the
+                        :attr:`Response.default_send_file_max_age` attribute is
+                        used.
+        :param compressed: Whether the file is compressed. If ``True``, the
+                           ``Content-Encoding`` header is set to ``gzip``. A
+                           string with the header value can also be passed.
+                           Note that when using this option the file must have
+                           been compressed beforehand. This option only sets
+                           the header.
+        :param file_extension: A file extension to append to the ``filename``
+                               parameter when opening the file, including the
+                               dot. The extension given here is not considered
+                               when generating the ``Content-Type`` header.
 
         Security note: The filename is assumed to be trusted. Never pass
         filenames provided by the user without validating and sanitizing them
@@ -671,9 +704,19 @@ class Response():
                 content_type = Response.types_map[ext]
             else:
                 content_type = 'application/octet-stream'
-        f = open(filename, 'rb')
+        headers = {'Content-Type': content_type}
-        return cls(body=f, status_code=status_code,
+
-                   headers={'Content-Type': content_type})
+        if max_age is None:
+            max_age = cls.default_send_file_max_age
+        if max_age is not None:
+            headers['Cache-Control'] = 'max-age={}'.format(max_age)
+
+        if compressed:
+            headers['Content-Encoding'] = compressed \
+                if isinstance(compressed, str) else 'gzip'
+
+        f = stream or open(filename + file_extension, 'rb')
+        return cls(body=f, status_code=status_code, headers=headers)
 
 
 class URLPattern():
@@ -695,7 +738,7 @@ class URLPattern():
                 if type_ == 'string':
                     pattern = '[^/]+'
                 elif type_ == 'int':
-                    pattern = '\\d+'
+                    pattern = '-?\\d+'
                 elif type_ == 'path':
                     pattern = '.+'
                 elif type_.startswith('re:'):
@@ -759,6 +802,7 @@ class Microdot():
         self.after_error_request_handlers = []
         self.error_handlers = {}
         self.shutdown_requested = False
+        self.options_handler = self.default_options_handler
         self.debug = False
         self.server = None
 
@@ -794,7 +838,8 @@ class Microdot():
         """
         def decorated(f):
             self.url_map.append(
-                (methods or ['GET'], URLPattern(url_pattern), f))
+                ([m.upper() for m in (methods or ['GET'])],
+                 URLPattern(url_pattern), f))
             return f
         return decorated
 
@@ -1029,7 +1074,7 @@ class Microdot():
             app = Microdot()
 
             @app.route('/')
-            def index():
+            def index(request):
                 return 'Hello, world!'
 
             app.run(debug=True)
@@ -1080,17 +1125,32 @@ class Microdot():
         self.shutdown_requested = True
 
     def find_route(self, req):
+        method = req.method.upper()
+        if method == 'OPTIONS' and self.options_handler:
+            return self.options_handler(req)
+        if method == 'HEAD':
+            method = 'GET'
         f = 404
         for route_methods, route_pattern, route_handler in self.url_map:
             req.url_args = route_pattern.match(req.path)
             if req.url_args is not None:
-                if req.method in route_methods:
+                if method in route_methods:
                     f = route_handler
                     break
                 else:
                     f = 405
         return f
 
+    def default_options_handler(self, req):
+        allow = []
+        for route_methods, route_pattern, route_handler in self.url_map:
+            if route_pattern.match(req.path) is not None:
+                allow.extend(route_methods)
+        if 'GET' in allow:
+            allow.append('HEAD')
+        allow.append('OPTIONS')
+        return {'Allow': ', '.join(allow)}
+
     def handle_request(self, sock, addr):
         if Request.socket_read_timeout and \
                 hasattr(sock, 'settimeout'):  # pragma: no cover
@@ -1106,7 +1166,7 @@ class Microdot():
             req = Request.create(self, stream, addr, sock)
             res = self.dispatch_request(req)
         except socket_timeout_error as exc:  # pragma: no cover
-            if exc.errno and exc.errno not in [60, 110]:
+            if exc.errno and exc.errno != errno.ETIMEDOUT:
                 print_exception(exc)  # not a timeout
         except Exception as exc:  # pragma: no cover
             print_exception(exc)
@@ -1165,6 +1225,8 @@ class Microdot():
                         for handler in req.after_request_handlers:
                             res = handler(req, res) or res
                         after_request_handled = True
+                    elif isinstance(f, dict):
+                        res = Response(headers=f)
                     elif f in self.error_handlers:
                         res = self.error_handlers[f](req)
                     else:
@@ -1208,6 +1270,7 @@ class Microdot():
         if not after_request_handled:
             for handler in self.after_error_request_handlers:
                 res = handler(req, res) or res
+        res.is_head = (req and req.method == 'HEAD')
         return res
 
 

src/microdot_asgi.py

@@ -59,8 +59,9 @@ class Microdot(BaseMicrodot):
         headers = NoCaseDict()
         content_length = 0
         for key, value in scope.get('headers', []):
-            headers[key] = value
+            key = key.decode().title()
-            if key.lower() == 'content-length':
+            headers[key] = value.decode()
+            if key == 'Content-Length':
                 content_length = int(value)
 
         if content_length and content_length <= Request.max_body_length:
@@ -119,17 +120,18 @@ class Microdot(BaseMicrodot):
         asyncio.ensure_future(cancel_monitor())
 
         body_iter = res.body_iter().__aiter__()
+        res_body = b''
         try:
-            body = await body_iter.__anext__()
+            res_body = await body_iter.__anext__()
             while not cancelled:  # pragma: no branch
                 next_body = await body_iter.__anext__()
                 await send({'type': 'http.response.body',
-                            'body': body,
+                            'body': res_body,
                             'more_body': True})
-                body = next_body
+                res_body = next_body
         except StopAsyncIteration:
             await send({'type': 'http.response.body',
-                        'body': body,
+                        'body': res_body,
                         'more_body': False})
 
     async def __call__(self, scope, receive, send):

src/microdot_asyncio.py

@@ -151,10 +151,11 @@ class Response(BaseResponse):
             await stream.awrite(b'\r\n')
 
             # body
-            async for body in self.body_iter():
+            if not self.is_head:
-                if isinstance(body, str):  # pragma: no cover
+                async for body in self.body_iter():
-                    body = body.encode()
+                    if isinstance(body, str):  # pragma: no cover
-                await stream.awrite(body)
+                        body = body.encode()
+                    await stream.awrite(body)
         except OSError as exc:  # pragma: no cover
             if exc.errno in MUTED_SOCKET_ERRORS or \
                     exc.args[0] == 'Connection lost':
@@ -240,7 +241,7 @@ class Microdot(BaseMicrodot):
             app = Microdot()
 
             @app.route('/')
-            async def index():
+            async def index(request):
                 return 'Hello, world!'
 
             async def main():
@@ -279,6 +280,11 @@ class Microdot(BaseMicrodot):
 
         while True:
             try:
+                if hasattr(self.server, 'serve_forever'):  # pragma: no cover
+                    try:
+                        await self.server.serve_forever()
+                    except asyncio.CancelledError:
+                        pass
                 await self.server.wait_closed()
                 break
             except AttributeError:  # pragma: no cover
@@ -312,7 +318,7 @@ class Microdot(BaseMicrodot):
             app = Microdot()
 
             @app.route('/')
-            async def index():
+            async def index(request):
                 return 'Hello, world!'
 
             app.run(debug=True)
@@ -385,6 +391,8 @@ class Microdot(BaseMicrodot):
                             res = await self._invoke_handler(
                                 handler, req, res) or res
                         after_request_handled = True
+                    elif isinstance(f, dict):
+                        res = Response(headers=f)
                     elif f in self.error_handlers:
                         res = await self._invoke_handler(
                             self.error_handlers[f], req)
@@ -431,6 +439,7 @@ class Microdot(BaseMicrodot):
             for handler in self.after_error_request_handlers:
                 res = await self._invoke_handler(
                     handler, req, res) or res
+        res.is_head = (req and req.method == 'HEAD')
         return res
 
     async def _invoke_handler(self, f_or_coro, *args, **kwargs):

src/microdot_asyncio_websocket.py

@@ -17,7 +17,7 @@ class WebSocket(BaseWebSocket):
             opcode, payload = await self._read_frame()
             send_opcode, data = self._process_websocket_frame(opcode, payload)
             if send_opcode:  # pragma: no cover
-                await self.send(send_opcode, data)
+                await self.send(data, send_opcode)
             elif data:  # pragma: no branch
                 return data
 

src/microdot_cors.py

@@ -0,0 +1,110 @@
+class CORS:
+    """Add CORS headers to HTTP responses.
+
+    :param app: The application to add CORS headers to.
+    :param allowed_origins: A list of origins that are allowed to make
+                            cross-site requests. If set to '*', all origins are
+                            allowed.
+    :param allow_credentials: If set to True, the
+                              ``Access-Control-Allow-Credentials`` header will
+                              be set to ``true`` to indicate to the browser
+                              that it can expose cookies and authentication
+                              headers.
+    :param allowed_methods: A list of methods that are allowed to be used when
+                            making cross-site requests. If not set, all methods
+                            are allowed.
+    :param expose_headers: A list of headers that the browser is allowed to
+                           exposed.
+    :param allowed_headers: A list of headers that are allowed to be used when
+                            making cross-site requests. If not set, all headers
+                            are allowed.
+    :param max_age: The maximum amount of time in seconds that the browser
+                    should cache the results of a preflight request.
+    :param handle_cors: If set to False, CORS headers will not be added to
+                        responses. This can be useful if you want to add CORS
+                        headers manually.
+    """
+    def __init__(self, app=None, allowed_origins=None, allow_credentials=False,
+                 allowed_methods=None, expose_headers=None,
+                 allowed_headers=None, max_age=None, handle_cors=True):
+        self.allowed_origins = allowed_origins
+        self.allow_credentials = allow_credentials
+        self.allowed_methods = allowed_methods
+        self.expose_headers = expose_headers
+        self.allowed_headers = None if allowed_headers is None \
+            else [h.lower() for h in allowed_headers]
+        self.max_age = max_age
+        if app is not None:
+            self.initialize(app, handle_cors=handle_cors)
+
+    def initialize(self, app, handle_cors=True):
+        """Initialize the CORS object for the given application.
+
+        :param app: The application to add CORS headers to.
+        :param handle_cors: If set to False, CORS headers will not be added to
+                            responses. This can be useful if you want to add
+                            CORS headers manually.
+        """
+        self.default_options_handler = app.options_handler
+        if handle_cors:
+            app.options_handler = self.options_handler
+            app.after_request(self.after_request)
+            app.after_error_request(self.after_request)
+
+    def options_handler(self, request):
+        headers = self.default_options_handler(request)
+        headers.update(self.get_cors_headers(request))
+        return headers
+
+    def get_cors_headers(self, request):
+        """Return a dictionary of CORS headers to add to a given request.
+
+        :param request: The request to add CORS headers to.
+        """
+        cors_headers = {}
+        origin = request.headers.get('Origin')
+        if self.allowed_origins == '*':
+            cors_headers['Access-Control-Allow-Origin'] = origin or '*'
+            if origin:
+                cors_headers['Vary'] = 'Origin'
+        elif origin in (self.allowed_origins or []):
+            cors_headers['Access-Control-Allow-Origin'] = origin
+            cors_headers['Vary'] = 'Origin'
+        if self.allow_credentials and \
+                'Access-Control-Allow-Origin' in cors_headers:
+            cors_headers['Access-Control-Allow-Credentials'] = 'true'
+        if self.expose_headers:
+            cors_headers['Access-Control-Expose-Headers'] = \
+                ', '.join(self.expose_headers)
+
+        if request.method == 'OPTIONS':
+            # handle preflight request
+            if self.max_age:
+                cors_headers['Access-Control-Max-Age'] = str(self.max_age)
+
+            method = request.headers.get('Access-Control-Request-Method')
+            if method:
+                method = method.upper()
+                if self.allowed_methods is None or \
+                        method in self.allowed_methods:
+                    cors_headers['Access-Control-Allow-Methods'] = method
+
+            headers = request.headers.get('Access-Control-Request-Headers')
+            if headers:
+                if self.allowed_headers is None:
+                    cors_headers['Access-Control-Allow-Headers'] = headers
+                else:
+                    headers = [h.strip() for h in headers.split(',')]
+                    headers = [h for h in headers
+                               if h.lower() in self.allowed_headers]
+                    cors_headers['Access-Control-Allow-Headers'] = \
+                        ', '.join(headers)
+
+        return cors_headers
+
+    def after_request(self, request, response):
+        saved_vary = response.headers.get('Vary')
+        response.headers.update(self.get_cors_headers(request))
+        if saved_vary and saved_vary != response.headers.get('Vary'):
+            response.headers['Vary'] = (
+                saved_vary + ', ' + response.headers['Vary'])

src/microdot_test_client.py

@@ -58,6 +58,7 @@ class TestResponse:
         test_res._initialize_body(res)
         test_res._process_text_body()
         test_res._process_json_body()
+        test_res.is_head = res.is_head
         return test_res
 
 

src/microdot_websocket.py

@@ -28,7 +28,7 @@ class WebSocket:
             opcode, payload = self._read_frame()
             send_opcode, data = self._process_websocket_frame(opcode, payload)
             if send_opcode:  # pragma: no cover
-                self.send(send_opcode, data)
+                self.send(data, send_opcode)
             elif data:  # pragma: no branch
                 return data
 

tests/test_cors.py

@@ -0,0 +1,158 @@
+import unittest
+from microdot import Microdot
+from microdot_test_client import TestClient
+from microdot_cors import CORS
+
+
+class TestCORS(unittest.TestCase):
+    def test_origin(self):
+        app = Microdot()
+        cors = CORS(allowed_origins=['https://example.com'],
+                    allow_credentials=True)
+        cors.initialize(app)
+
+        @app.get('/')
+        def index(req):
+            return 'foo'
+
+        client = TestClient(app)
+        res = client.get('/')
+        self.assertEqual(res.status_code, 200)
+        self.assertFalse('Access-Control-Allow-Origin' in res.headers)
+        self.assertFalse('Access-Control-Allow-Credentials' in res.headers)
+        self.assertFalse('Vary' in res.headers)
+
+        res = client.get('/', headers={'Origin': 'https://example.com'})
+        self.assertEqual(res.status_code, 200)
+        self.assertEqual(res.headers['Access-Control-Allow-Origin'],
+                         'https://example.com')
+        self.assertEqual(res.headers['Access-Control-Allow-Credentials'],
+                         'true')
+        self.assertEqual(res.headers['Vary'], 'Origin')
+
+        cors.allow_credentials = False
+
+        res = client.get('/foo', headers={'Origin': 'https://example.com'})
+        self.assertEqual(res.status_code, 404)
+        self.assertEqual(res.headers['Access-Control-Allow-Origin'],
+                         'https://example.com')
+        self.assertFalse('Access-Control-Allow-Credentials' in res.headers)
+        self.assertEqual(res.headers['Vary'], 'Origin')
+
+        res = client.get('/', headers={'Origin': 'https://bad.com'})
+        self.assertEqual(res.status_code, 200)
+        self.assertFalse('Access-Control-Allow-Origin' in res.headers)
+        self.assertFalse('Access-Control-Allow-Credentials' in res.headers)
+        self.assertFalse('Vary' in res.headers)
+
+    def test_all_origins(self):
+        app = Microdot()
+        CORS(app, allowed_origins='*', expose_headers=['X-Test', 'X-Test2'])
+
+        @app.get('/')
+        def index(req):
+            return 'foo'
+
+        @app.get('/foo')
+        def foo(req):
+            return 'foo', {'Vary': 'X-Foo, X-Bar'}
+
+        client = TestClient(app)
+        res = client.get('/')
+        self.assertEqual(res.status_code, 200)
+        self.assertEqual(res.headers['Access-Control-Allow-Origin'], '*')
+        self.assertFalse('Vary' in res.headers)
+        self.assertEqual(res.headers['Access-Control-Expose-Headers'],
+                         'X-Test, X-Test2')
+
+        res = client.get('/', headers={'Origin': 'https://example.com'})
+        self.assertEqual(res.status_code, 200)
+        self.assertEqual(res.headers['Access-Control-Allow-Origin'],
+                         'https://example.com')
+        self.assertEqual(res.headers['Vary'], 'Origin')
+        self.assertEqual(res.headers['Access-Control-Expose-Headers'],
+                         'X-Test, X-Test2')
+
+        res = client.get('/bad', headers={'Origin': 'https://example.com'})
+        self.assertEqual(res.status_code, 404)
+        self.assertEqual(res.headers['Access-Control-Allow-Origin'],
+                         'https://example.com')
+        self.assertEqual(res.headers['Vary'], 'Origin')
+        self.assertEqual(res.headers['Access-Control-Expose-Headers'],
+                         'X-Test, X-Test2')
+
+        res = client.get('/foo', headers={'Origin': 'https://example.com'})
+        self.assertEqual(res.status_code, 200)
+        self.assertEqual(res.headers['Vary'], 'X-Foo, X-Bar, Origin')
+
+    def test_cors_preflight(self):
+        app = Microdot()
+        CORS(app, allowed_origins='*')
+
+        @app.route('/', methods=['GET', 'POST'])
+        def index(req):
+            return 'foo'
+
+        client = TestClient(app)
+        res = client.request('OPTIONS', '/', headers={
+            'Origin': 'https://example.com',
+            'Access-Control-Request-Method': 'POST',
+            'Access-Control-Request-Headers': 'X-Test, X-Test2'})
+        self.assertEqual(res.status_code, 200)
+        self.assertEqual(res.headers['Access-Control-Allow-Origin'],
+                         'https://example.com')
+        self.assertFalse('Access-Control-Max-Age' in res.headers)
+        self.assertEqual(res.headers['Access-Control-Allow-Methods'], 'POST')
+        self.assertEqual(res.headers['Access-Control-Allow-Headers'],
+                         'X-Test, X-Test2')
+
+        res = client.request('OPTIONS', '/', headers={
+            'Origin': 'https://example.com'})
+        self.assertEqual(res.status_code, 200)
+        self.assertEqual(res.headers['Access-Control-Allow-Origin'],
+                         'https://example.com')
+        self.assertFalse('Access-Control-Max-Age' in res.headers)
+        self.assertFalse('Access-Control-Allow-Methods' in res.headers)
+        self.assertFalse('Access-Control-Allow-Headers' in res.headers)
+
+    def test_cors_preflight_with_options(self):
+        app = Microdot()
+        CORS(app, allowed_origins='*', max_age=3600, allowed_methods=['POST'],
+             allowed_headers=['X-Test'])
+
+        @app.route('/', methods=['GET', 'POST'])
+        def index(req):
+            return 'foo'
+
+        client = TestClient(app)
+        res = client.request('OPTIONS', '/', headers={
+            'Origin': 'https://example.com',
+            'Access-Control-Request-Method': 'POST',
+            'Access-Control-Request-Headers': 'X-Test, X-Test2'})
+        self.assertEqual(res.status_code, 200)
+        self.assertEqual(res.headers['Access-Control-Allow-Origin'],
+                         'https://example.com')
+        self.assertEqual(res.headers['Access-Control-Max-Age'], '3600')
+        self.assertEqual(res.headers['Access-Control-Allow-Methods'], 'POST')
+        self.assertEqual(res.headers['Access-Control-Allow-Headers'], 'X-Test')
+
+        res = client.request('OPTIONS', '/', headers={
+            'Origin': 'https://example.com',
+            'Access-Control-Request-Method': 'GET'})
+        self.assertEqual(res.status_code, 200)
+        self.assertFalse('Access-Control-Allow-Methods' in res.headers)
+        self.assertFalse('Access-Control-Allow-Headers' in res.headers)
+
+    def test_cors_disabled(self):
+        app = Microdot()
+        CORS(app, allowed_origins='*', handle_cors=False)
+
+        @app.get('/')
+        def index(req):
+            return 'foo'
+
+        client = TestClient(app)
+        res = client.get('/')
+        self.assertEqual(res.status_code, 200)
+        self.assertFalse('Access-Control-Allow-Origin' in res.headers)
+        self.assertFalse('Vary' in res.headers)

tests/test_microdot.py

@@ -63,6 +63,52 @@ class TestMicrodot(unittest.TestCase):
         self.assertEqual(res.headers['Content-Length'], '3')
         self.assertEqual(res.text, 'bar')
 
+    def test_head_request(self):
+        self._mock()
+
+        app = Microdot()
+
+        @app.route('/foo')
+        def index(req):
+            return 'foo'
+
+        mock_socket.clear_requests()
+        fd = mock_socket.add_request('HEAD', '/foo')
+        self._add_shutdown(app)
+        app.run()
+
+        self.assertTrue(fd.response.startswith(b'HTTP/1.0 200 OK\r\n'))
+        self.assertIn(b'Content-Length: 3\r\n', fd.response)
+        self.assertIn(b'Content-Type: text/plain; charset=UTF-8\r\n',
+                      fd.response)
+        self.assertTrue(fd.response.endswith(b'\r\n\r\n'))
+
+        self._unmock()
+
+    def test_options_request(self):
+        app = Microdot()
+
+        @app.route('/', methods=['GET', 'DELETE'])
+        def index(req):
+            return 'foo'
+
+        @app.post('/')
+        def index_post(req):
+            return 'bar'
+
+        @app.route('/foo', methods=['POST', 'PUT'])
+        def foo(req):
+            return 'baz'
+
+        client = TestClient(app)
+        res = client.request('OPTIONS', '/')
+        self.assertEqual(res.status_code, 200)
+        self.assertEqual(res.headers['Allow'],
+                         'GET, DELETE, POST, HEAD, OPTIONS')
+        res = client.request('OPTIONS', '/foo')
+        self.assertEqual(res.status_code, 200)
+        self.assertEqual(res.headers['Allow'], 'POST, PUT, OPTIONS')
+
     def test_empty_request(self):
         self._mock()
 

tests/test_microdot_asgi.py

@@ -53,9 +53,9 @@ class TestMicrodotASGI(unittest.TestCase):
             'type': 'http',
             'path': '/foo/bar',
             'query_string': b'baz=1',
-            'headers': [('Authorization', 'Bearer 123'),
+            'headers': [(b'Authorization', b'Bearer 123'),
-                        ('Cookie', 'session=xyz'),
+                        (b'Cookie', b'session=xyz'),
-                        ('Content-Length', 4)],
+                        (b'Content-Length', b'4')],
             'client': ['1.2.3.4', 1234],
             'method': 'POST',
             'http_version': '1.1',
@@ -114,9 +114,9 @@ class TestMicrodotASGI(unittest.TestCase):
         scope = {
             'type': 'http',
             'path': '/foo/bar',
-            'headers': [('Authorization', 'Bearer 123'),
+            'headers': [(b'Authorization', b'Bearer 123'),
-                        ('Cookie', 'session=xyz'),
+                        (b'Cookie', b'session=xyz'),
-                        ('Content-Length', 4)],
+                        (b'Content-Length', b'4')],
             'client': ['1.2.3.4', 1234],
             'method': 'POST',
             'http_version': '1.1',

tests/test_microdot_asyncio.py

@@ -101,6 +101,48 @@ class TestMicrodotAsync(unittest.TestCase):
         self.assertEqual(res.body, b'bar-async')
         self.assertEqual(res.json, None)
 
+    def test_head_request(self):
+        app = Microdot()
+
+        @app.route('/foo')
+        def index(req):
+            return 'foo'
+
+        mock_socket.clear_requests()
+        fd = mock_socket.add_request('HEAD', '/foo')
+        self._add_shutdown(app)
+        app.run()
+
+        self.assertTrue(fd.response.startswith(b'HTTP/1.0 200 OK\r\n'))
+        self.assertIn(b'Content-Length: 3\r\n', fd.response)
+        self.assertIn(b'Content-Type: text/plain; charset=UTF-8\r\n',
+                      fd.response)
+        self.assertTrue(fd.response.endswith(b'\r\n\r\n'))
+
+    def test_options_request(self):
+        app = Microdot()
+
+        @app.route('/', methods=['GET', 'DELETE'])
+        async def index(req):
+            return 'foo'
+
+        @app.post('/')
+        async def index_post(req):
+            return 'bar'
+
+        @app.route('/foo', methods=['POST', 'PUT'])
+        async def foo(req):
+            return 'baz'
+
+        client = TestClient(app)
+        res = self._run(client.request('OPTIONS', '/'))
+        self.assertEqual(res.status_code, 200)
+        self.assertEqual(res.headers['Allow'],
+                         'GET, DELETE, POST, HEAD, OPTIONS')
+        res = self._run(client.request('OPTIONS', '/foo'))
+        self.assertEqual(res.status_code, 200)
+        self.assertEqual(res.headers['Allow'], 'POST, PUT, OPTIONS')
+
     def test_empty_request(self):
         app = Microdot()
 

tests/test_multidict.py

@@ -58,3 +58,11 @@ class TestMultiDict(unittest.TestCase):
         del d['oNE']
         self.assertEqual(list(d.items()), [('two', 5)])
         self.assertEqual(list(d.values()), [5])
+
+        d.update({'oNe': 1, 'two': 2, 'three': 3})
+        self.assertEqual(d['one'], 1)
+        self.assertEqual(d['ONE'], 1)
+        self.assertEqual(d['two'], 2)
+        self.assertEqual(d['TWO'], 2)
+        self.assertEqual(d['three'], 3)
+        self.assertEqual(d['THREE'], 3)

tests/test_request.py

@@ -39,9 +39,17 @@ class TestRequest(unittest.TestCase):
         self.assertEqual(req.body, b'aaa')
 
     def test_args(self):
-        fd = get_request_fd('GET', '/?foo=bar&abc=def&x=%2f%%')
+        fd = get_request_fd('GET', '/?foo=bar&abc=def&foo&x=%2f%%')
         req = Request.create('app', fd, 'addr')
-        self.assertEqual(req.query_string, 'foo=bar&abc=def&x=%2f%%')
+        self.assertEqual(req.query_string, 'foo=bar&abc=def&foo&x=%2f%%')
+        md = MultiDict({'foo': 'bar', 'abc': 'def', 'x': '/%%'})
+        md['foo'] = ''
+        self.assertEqual(req.args, md)
+
+    def test_badly_formatted_args(self):
+        fd = get_request_fd('GET', '/?&foo=bar&abc=def&&&x=%2f%%')
+        req = Request.create('app', fd, 'addr')
+        self.assertEqual(req.query_string, '&foo=bar&abc=def&&&x=%2f%%')
         self.assertEqual(req.args, MultiDict(
             {'foo': 'bar', 'abc': 'def', 'x': '/%%'}))
 

tests/test_request_asyncio.py

@@ -49,11 +49,12 @@ class TestRequestAsync(unittest.TestCase):
         self.assertEqual(req.body, b'aaa')
 
     def test_args(self):
-        fd = get_async_request_fd('GET', '/?foo=bar&abc=def&x=%2f%%')
+        fd = get_async_request_fd('GET', '/?foo=bar&abc=def&foo&x=%2f%%')
         req = _run(Request.create('app', fd, 'writer', 'addr'))
-        self.assertEqual(req.query_string, 'foo=bar&abc=def&x=%2f%%')
+        self.assertEqual(req.query_string, 'foo=bar&abc=def&foo&x=%2f%%')
-        self.assertEqual(req.args, MultiDict(
+        md = MultiDict({'foo': 'bar', 'abc': 'def', 'x': '/%%'})
-            {'foo': 'bar', 'abc': 'def', 'x': '/%%'}))
+        md['foo'] = ''
+        self.assertEqual(req.args, md)
 
     def test_json(self):
         fd = get_async_request_fd('GET', '/foo', headers={

tests/test_response.py

@@ -235,6 +235,39 @@ class TestResponse(unittest.TestCase):
             b'HTTP/1.0 200 OK\r\nContent-Type: text/html\r\n\r\nfoo\n')
         Response.send_file_buffer_size = original_buffer_size
 
+    def test_send_file_max_age(self):
+        res = Response.send_file('tests/files/test.txt', max_age=123)
+        self.assertEqual(res.status_code, 200)
+        self.assertEqual(res.headers['Cache-Control'], 'max-age=123')
+
+        Response.default_send_file_max_age = 456
+        res = Response.send_file('tests/files/test.txt')
+        self.assertEqual(res.status_code, 200)
+        self.assertEqual(res.headers['Cache-Control'], 'max-age=456')
+        res = Response.send_file('tests/files/test.txt', max_age=123)
+        self.assertEqual(res.status_code, 200)
+        self.assertEqual(res.headers['Cache-Control'], 'max-age=123')
+
+        Response.default_send_file_max_age = None
+
+    def test_send_file_compressed(self):
+        res = Response.send_file('tests/files/test.txt', compressed=True)
+        self.assertEqual(res.status_code, 200)
+        self.assertEqual(res.headers['Content-Type'], 'text/plain')
+        self.assertEqual(res.headers['Content-Encoding'], 'gzip')
+
+        res = Response.send_file('tests/files/test.txt', compressed='foo')
+        self.assertEqual(res.status_code, 200)
+        self.assertEqual(res.headers['Content-Type'], 'text/plain')
+        self.assertEqual(res.headers['Content-Encoding'], 'foo')
+
+        res = Response.send_file('tests/files/test', compressed=True,
+                                 file_extension='.gz')
+        self.assertEqual(res.status_code, 200)
+        self.assertEqual(res.headers['Content-Type'],
+                         'application/octet-stream')
+        self.assertEqual(res.headers['Content-Encoding'], 'gzip')
+
     def test_default_content_type(self):
         original_content_type = Response.default_content_type
         res = Response('foo')

tests/test_url_pattern.py

@@ -56,10 +56,12 @@ class TestURLPattern(unittest.TestCase):
 
         p = URLPattern('/users/<int:id>/<int:id2>/')
         self.assertEqual(p.match('/users/123/456/'), {'id': 123, 'id2': 456})
+        self.assertEqual(p.match('/users/123/-456/'), {'id': 123, 'id2': -456})
         self.assertIsNone(p.match('/users/'))
-        self.assertIsNone(p.match('/users/123/456'))
+        self.assertIsNone(p.match('/users/123/-456'))
         self.assertIsNone(p.match('/users/123/abc/'))
-        self.assertIsNone(p.match('/users/123/456/abc'))
+        self.assertIsNone(p.match('/users/123/-456/abc'))
+        self.assertIsNone(p.match('/users/--123/456/'))
 
     def test_path_argument(self):
         p = URLPattern('/users/<path:path>')

tox.ini

@@ -15,7 +15,7 @@ python =
 [testenv]
 commands=
     pip install -e .
-    pytest -p no:logging --cov=src --cov-config=.coveragerc --cov-branch --cov-report=term-missing
+    pytest -p no:logging --cov=src --cov-config=.coveragerc --cov-branch --cov-report=term-missing --cov-report=xml
 deps=
     pytest
     pytest-cov