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bug#27022: url-retrieve + .authinfo bug


From: Andy Wingo
Subject: bug#27022: url-retrieve + .authinfo bug
Date: Mon, 22 May 2017 20:09:49 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.2 (gnu/linux)

Hi,

If you try to do a url-retrieve over HTTP on a URL that requires HTTP
basic authentication, and you have an .authinfo file, and that .authinfo
contains an incorrect login, then Emacs will keep appending the same
Authorization: header to the request -- over and over, making the
request larger and larger, with no stop condition.  Eventually nginx
produces a "400 Bad Request" error because there were too many headers.

Emacs should instead error after the first attempt at authentication
fails.

  $ emacs --version
  GNU Emacs 25.2.1

Andy





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