Merge pull request #189 from tbetbetbe/simple-http20-concurrency

Simple http20 concurrency

Author: Lukasa

LICENSE

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2014 Cory Benfield
+Copyright (c) 2014 Cory Benfield, Google Inc
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

hyper/common/headers.py

@@ -181,6 +181,19 @@ def iter_raw(self):
         for item in self._items:
             yield item
 
+    def replace(self, key, value):
+        """
+        Replace existing header with new value. If header doesn't exist this
+        method work like ``__setitem__``. Replacing leads to deletion of all 
+        exsiting headers with the same name.
+        """
+        try:
+            del self[key]
+        except KeyError:
+            pass
+
+        self[key] = value
+
     def merge(self, other):
         """
         Merge another header set or any other dict-like into this one.

hyper/common/util.py

@@ -7,8 +7,10 @@
 """
 from hyper.compat import unicode, bytes, imap
 from ..packages.rfc3986.uri import URIReference
+from ..compat import is_py3
 import re
 
+
 def to_bytestring(element):
     """
     Converts a single string to a bytestring, encoding via UTF-8 if needed.
@@ -28,6 +30,7 @@ def to_bytestring_tuple(*x):
     """
     return tuple(imap(to_bytestring, x))
 
+
 def to_host_port_tuple(host_port_str, default_port=80):
     """
     Converts the given string containing a host and possibly a port
@@ -48,3 +51,10 @@ def to_host_port_tuple(host_port_str, default_port=80):
         port = int(uri.port)
 
     return (host, port)
+
+
+def to_native_string(string, encoding='utf-8'):
+    if isinstance(string, str):
+        return string
+
+    return string.decode(encoding) if is_py3 else string.encode(encoding)