#31344: Django raises UnicodeEncodeError when there is a cookie with a non-latin
character.
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Reporter: Ozgur Akcali | Owner: nobody
Type: Bug | Status: closed
Component: HTTP handling | Version: 2.2
Severity: Normal | Resolution: needsinfo
Keywords: cookie | Triage Stage: Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Comment (by Florian Apolloner):
I am with Mariusz on this one. If your environment contains data that is
**not** encodable to iso-8859-1 then you have an app-server that doesn't
implement WSGI correctly.
Not sure how this should be handled, 'ignore' could bu supplied as the
second parameter to encode method, but that would change the value of the
cookie silently, and I'm not sure if that would be a desired behavior.
The value of the cookie is already changed silently, if you were to send
"name=öäü".encode('iso-8859-1') as literal cookie value over the wire and
execute the following view:
{{{
from django.core.handlers.wsgi import get_bytes_from_wsgi
print(get_bytes_from_wsgi(request.environ, "HTTP_COOKIE", ""))
print(request.COOKIES["name"])
}}}
you'd get:
{{{
b'name=\xf6\xe4\xfc'
���
}}}
As you can see the "bytes" in the raw environment are reproducable
correctly, but django later on converts to a string using utf-8 with
`replace`. Even if you had any other non-latin character the actual byte
sequence would be correct. We'd need a full traceback and reproducer like
Mariusz said.
--
Ticket URL: <https://code.djangoproject.com/ticket/31344#comment:2>
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