Improve logging, fix small issues

httplib/exceptions.py

@@ -66,12 +66,10 @@ class HTTPServerException(HTTPException):
     """
     status_code: str
     message: str
-    body: str
     arg: str
 
-    def __init__(self, arg, body=""):
+    def __init__(self, arg):
         self.arg = arg
-        self.body = body
 
 
 class HTTPServerCloseException(HTTPServerException):
@@ -160,5 +158,6 @@ class InvalidRequestLine(BadRequest):
     Request start-line is invalid
     """
 
-    def __init__(self, line):
+    def __init__(self, line, arg):
+        super().__init__(arg)
         self.request_line = line

httplib/parser.py

@@ -72,7 +72,7 @@ def parse_request_line(line: str):
 
     split = list(filter(None, line.rstrip().split(" ", 2)))
     if len(split) < 3:
-        raise InvalidRequestLine(line)
+        raise InvalidRequestLine(line, "missing argument in request-line")
 
     method, target, version = split
     if method not in ("CONNECT", "DELETE", "GET", "HEAD", "OPTIONS", "POST", "PUT", "TRACE"):