[Web-SIG] Python 3.0 and WSGI 1.0.

[James Y Knight]

On Apr 2, 2009, at 2:33 PM, Tres Seaver wrote:
> I don't understand why:  if RFC2047 values are being passed as HTTP
> headers, then surely the server has enough information to decode them,
> and to ensure that they are re-encoded into the same encoding as all
> other WSGI enviornment variables (under Python 2.x).

Just so long as the gateway server has an HTTP header parsing  
implementation and global knowledge of all HTTP headers, including  
private ones.

Consider:
FooBar: =?utf-8?q?some-text?=

Should that be decoded with RFC2047 rules? Answer: it depends. Does  
the grammar for FooBar say that the contents is of type TEXT? Maybe it  
just *looks* like an encoded-word but is actually just a sequence of  
tokens and separators which have an entirely different meaning for  
that header. You simply can't tell without the grammar for the FooBar  
header.

James