aiohttp: Match response header names case-insensitively.

Response header field names are case-insensitive (RFC 9110 Sec. 5.1), but
ClientSession._request matched Transfer-Encoding and Location with fixed
capitalization via startswith.  Servers that send transfer-encoding: or
location: would skip chunked detection or redirects.

Fixes issue #1126.

Signed-off-by: Pablo Ventura <pablogventura@gmail.com>

Author: pablogventura

python-ecosys/aiohttp/aiohttp/__init__.py

@@ -125,10 +125,11 @@ async def _request(self, method, url, data=None, json=None, ssl=None, params=Non
                 if not line or line == b"\r\n":
                     break
                 _headers.append(line)
-                if line.startswith(b"Transfer-Encoding:"):
+                lowerl = line.lower()
+                if lowerl.startswith(b"transfer-encoding:"):
                     if b"chunked" in line:
                         chunked = True
-                elif line.startswith(b"Location:"):
+                elif lowerl.startswith(b"location:"):
                     url = line.rstrip().split(None, 1)[1].decode()
 
             if 301 <= status <= 303:

python-ecosys/aiohttp/manifest.py

@@ -1,6 +1,6 @@
 metadata(
     description="HTTP client module for MicroPython asyncio module",
-    version="0.0.7",
+    version="0.0.8",
     pypi="aiohttp",
 )