Hello Twisters, 

I'm interested in working on ticket #5435: The ability to discover the final 
URI of an Agent request/response. Thomas summarised a previous IRC conversation 
on this topic quite well in a comment on the ticket [1].

The biggest issue I've encountered so far is that Request.uri is a relative 
URI. Since it is not possible to reconstruct an absolute URI given the 
information that Request has, at the very least the URI scheme is lost, we have 
a few options:

* Allow Request.uri to be either an absolute URI or a relative URI byte string, 
however this means that consumers of this attribute need to be aware that it 
could be either;

* Add a new attribute/method to Request (and parameter to Request.__init__) for 
the absolute URI, again this means that consumers need to be aware that the 
absolute URI might not be present.

If we are to change Request's URI API, it would be a good idea to do this as 
few times as possible. (One seems like a good number to me.)

JP commented that it would be nice if there was an object that represented a 
URL we could use, referring to ticket #5388. And although I would love to see 
#5388 finished (and might even be persuaded to work on it), discussions with 
Itamar and reading ticket comments have left me weary of the many nuanced 
complexities of this task.

What are the thoughts on changing the meaning of Request.uri?

Should the IRI branch be finished before attempting this ticket? (Note that 
this doesn't necessarily include my volunteering.)


[1] <https://twistedmatrix.com/trac/ticket/5435#comment:9> 

-- 
Jonathan



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