python-ecosys/aiohttp: Fix binary data treatment.

Fix binary data `Content-type` header and data `Content-Length`
calculation.

Signed-off-by: Carlos Gil <carlosgilglez@gmail.com>

Author: Carglglz

python-ecosys/aiohttp/aiohttp/__init__.py

@@ -195,28 +195,33 @@ async def request_raw(
         if "Host" not in headers:
             headers.update(Host=host)
         if not data:
-            query = "%s /%s %s\r\n%s\r\n" % (
+            query = b"%s /%s %s\r\n%s\r\n" % (
                 method,
                 path,
                 version,
                 "\r\n".join(f"{k}: {v}" for k, v in headers.items()) + "\r\n" if headers else "",
             )
         else:
-            headers.update(**{"Content-Length": len(str(data))})
             if json:
                 headers.update(**{"Content-Type": "application/json"})
-            query = """%s /%s %s\r\n%s\r\n%s\r\n\r\n""" % (
+            if isinstance(data, bytes):
+                headers.update(**{"Content-Type": "application/octet-stream"})
+            else:
+                data = data.encode("latin-1")
+
+            headers.update(**{"Content-Length": len(data)})
+            query = b"""%s /%s %s\r\n%s\r\n%s\r\n\r\n""" % (
                 method,
                 path,
                 version,
                 "\r\n".join(f"{k}: {v}" for k, v in headers.items()) + "\r\n",
                 data,
             )
         if not is_handshake:
-            await writer.awrite(query.encode("latin-1"))
+            await writer.awrite(query)
             return reader
         else:
-            await writer.awrite(query.encode())
+            await writer.awrite(query)
             return reader, writer
 
     def request(self, method, url, data=None, json=None, ssl=None, params=None, headers={}):