Allow http scheme for AsgiRequest

CODEOWNERS

@@ -9,4 +9,6 @@
 # AZURE FUNCTIONS TEAM
 # For all file changes, github would automatically include the following people in the PRs.
 #
-* @vrdmr @gavin-aguiar @YunchuWang @pdthummar @hallvictoria
+
+* @vrdmr @gavin-aguiar @YunchuWang @pdthummar @hallvictoria
+

azure/functions/_http_asgi.py

@@ -5,6 +5,7 @@
 import logging
 import asyncio
 from asyncio import Event, Queue
+from urllib.parse import ParseResult, urlparse
 from warnings import warn
 from wsgiref.headers import Headers
 
@@ -22,6 +23,8 @@ def __init__(self, func_req: HttpRequest,
         self.asgi_version = ASGI_VERSION
         self.asgi_spec_version = ASGI_SPEC_VERSION
         self._headers = func_req.headers
+        url: ParseResult = urlparse(func_req.url)
+        self.asgi_url_scheme = url.scheme
         super().__init__(func_req, func_ctx)
 
     def _get_encoded_http_headers(self) -> List[Tuple[bytes, bytes]]:
@@ -49,7 +52,7 @@ def to_asgi_http_scope(self):
             "asgi.spec_version": self.asgi_spec_version,
             "http_version": "1.1",
             "method": self.request_method,
-            "scheme": "https",
+            "scheme": self.asgi_url_scheme,
             "path": self.path_info,
             "raw_path": _raw_path,
             "query_string": _query_string,

tests/test_http_asgi.py

@@ -198,7 +198,19 @@ def test_middleware_calls_app(self):
         test_body = b'Hello world!'
         app.response_body = test_body
         app.response_code = 200
-        req = func.HttpRequest(method='get', url='/test', body=b'')
+        req = self._generate_func_request()
+        response = AsgiMiddleware(app).handle(req)
+
+        # Verify asserted
+        self.assertEqual(response.status_code, 200)
+        self.assertEqual(response.get_body(), test_body)
+
+    def test_middleware_calls_app_http(self):
+        app = MockAsgiApplication()
+        test_body = b'Hello world!'
+        app.response_body = test_body
+        app.response_code = 200
+        req = self._generate_func_request(url="http://a.b.com")
         response = AsgiMiddleware(app).handle(req)
 
         # Verify asserted