Add native ASGI worker and uWSGI binary protocol support

.github/workflows/docker-integration.yml

@@ -0,0 +1,45 @@
+name: Docker Integration Tests
+
+on:
+  push:
+    branches: [master]
+    paths:
+      - 'gunicorn/uwsgi/**'
+      - 'tests/docker/uwsgi/**'
+      - '.github/workflows/docker-integration.yml'
+  pull_request:
+    paths:
+      - 'gunicorn/uwsgi/**'
+      - 'tests/docker/uwsgi/**'
+      - '.github/workflows/docker-integration.yml'
+
+permissions:
+  contents: read
+
+env:
+  FORCE_COLOR: 1
+
+jobs:
+  uwsgi-nginx:
+    name: uWSGI Protocol with nginx
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Set up Python
+        uses: actions/setup-python@v6
+        with:
+          python-version: "3.12"
+          cache: pip
+          cache-dependency-path: requirements_test.txt
+
+      - name: Install test dependencies
+        run: |
+          python -m pip install --upgrade pip
+          python -m pip install pytest requests
+
+      - name: Run uWSGI integration tests
+        run: |
+          pytest tests/docker/uwsgi/ -v --tb=short

examples/asgi/__init__.py

@@ -0,0 +1,7 @@
+#
+# This file is part of gunicorn released under the MIT license.
+# See the NOTICE for more information.
+
+"""
+ASGI example applications for gunicorn.
+"""

examples/asgi/basic_app.py

@@ -0,0 +1,130 @@
+#
+# This file is part of gunicorn released under the MIT license.
+# See the NOTICE for more information.
+
+"""
+Basic ASGI application example.
+
+Run with:
+    gunicorn -k asgi examples.asgi.basic_app:app
+
+Test with:
+    curl http://127.0.0.1:8000/
+    curl http://127.0.0.1:8000/hello
+    curl -X POST http://127.0.0.1:8000/echo -d "test data"
+"""
+
+
+async def app(scope, receive, send):
+    """Simple ASGI application demonstrating basic functionality."""
+
+    if scope["type"] == "lifespan":
+        await handle_lifespan(scope, receive, send)
+    elif scope["type"] == "http":
+        await handle_http(scope, receive, send)
+    else:
+        raise ValueError(f"Unknown scope type: {scope['type']}")
+
+
+async def handle_lifespan(scope, receive, send):
+    """Handle lifespan events (startup/shutdown)."""
+    while True:
+        message = await receive()
+        if message["type"] == "lifespan.startup":
+            print("ASGI application starting up...")
+            await send({"type": "lifespan.startup.complete"})
+        elif message["type"] == "lifespan.shutdown":
+            print("ASGI application shutting down...")
+            await send({"type": "lifespan.shutdown.complete"})
+            return
+
+
+async def handle_http(scope, receive, send):
+    """Handle HTTP requests."""
+    path = scope["path"]
+    method = scope["method"]
+
+    if path == "/" and method == "GET":
+        await send_response(send, 200, b"Welcome to gunicorn ASGI!\n")
+
+    elif path == "/hello" and method == "GET":
+        name = get_query_param(scope, "name", "World")
+        body = f"Hello, {name}!\n".encode()
+        await send_response(send, 200, body)
+
+    elif path == "/echo" and method == "POST":
+        body = await read_body(receive)
+        await send_response(send, 200, body, content_type=b"application/octet-stream")
+
+    elif path == "/headers":
+        headers_info = format_headers(scope["headers"])
+        await send_response(send, 200, headers_info.encode())
+
+    elif path == "/info":
+        info = format_request_info(scope)
+        await send_response(send, 200, info.encode(), content_type=b"application/json")
+
+    else:
+        await send_response(send, 404, b"Not Found\n")
+
+
+async def send_response(send, status, body, content_type=b"text/plain"):
+    """Send an HTTP response."""
+    await send({
+        "type": "http.response.start",
+        "status": status,
+        "headers": [
+            (b"content-type", content_type),
+            (b"content-length", str(len(body)).encode()),
+        ],
+    })
+    await send({
+        "type": "http.response.body",
+        "body": body,
+    })
+
+
+async def read_body(receive):
+    """Read the full request body."""
+    body = b""
+    while True:
+        message = await receive()
+        body += message.get("body", b"")
+        if not message.get("more_body", False):
+            break
+    return body
+
+
+def get_query_param(scope, name, default=None):
+    """Get a query parameter value."""
+    query_string = scope.get("query_string", b"").decode()
+    for param in query_string.split("&"):
+        if "=" in param:
+            key, value = param.split("=", 1)
+            if key == name:
+                return value
+    return default
+
+
+def format_headers(headers):
+    """Format headers for display."""
+    lines = ["Request Headers:"]
+    for name, value in headers:
+        lines.append(f"  {name.decode()}: {value.decode()}")
+    return "\n".join(lines) + "\n"
+
+
+def format_request_info(scope):
+    """Format request info as JSON."""
+    import json
+    info = {
+        "method": scope["method"],
+        "path": scope["path"],
+        "query_string": scope.get("query_string", b"").decode(),
+        "http_version": scope["http_version"],
+        "scheme": scope["scheme"],
+        "server": list(scope.get("server") or []),
+        "client": list(scope.get("client") or []),
+        "root_path": scope.get("root_path", ""),
+    }
+    return json.dumps(info, indent=2) + "\n"