bug#4191: 23.1; Infinite recursion in url-generic-parse-url

bug#4191: 23.1; Infinite recursion in url-generic-parse-url

[Oliver, Peter]

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When an HTTP URL passed to url-generic-parse-url does not include a port number, and the environment variable http_proxy is set and also does not include a port number, infinite recursion results.  See the following backtrace for an example:

Debugger entered--Lisp error: (error "Variable binding depth exceeds max-specpdl-size")
  url-generic-parse-url("http://proxy")
...
  url-generic-parse-url("http://proxy")
  url-scheme-register-proxy("http")
  url-scheme-get-property("http" default-port)
  url-generic-parse-url("http://proxy")
  url-scheme-register-proxy("http")
  url-scheme-get-property("http" default-port)
  url-generic-parse-url("http://www.some.where/")
  eval((url-generic-parse-url "http://www.some.where/"))

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bug#4191: marked as done (23.1; Infinite recursion in url-generic-parse-url)

[Emacs bug Tracking System]

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Your message dated Fri, 11 Sep 2009 20:47:58 -0400
with message-id <87d45xvvi9.fsf@stupidchicken.com>
and subject line Re: 23.1; Infinite recursion in url-generic-parse-url
has caused the Emacs bug report #4191,
regarding 23.1; Infinite recursion in url-generic-parse-url
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
bug report if necessary, and/or fix the problem forthwith.

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-- 
4191: http://emacsbugs.donarmstrong.com/cgi-bin/bugreport.cgi?bug=4191
Emacs Bug Tracking System
Contact owner@emacsbugs.donarmstrong.com with problems

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When an HTTP URL passed to url-generic-parse-url does not include a port number, and the environment variable http_proxy is set and also does not include a port number, infinite recursion results.  See the following backtrace for an example:

Debugger entered--Lisp error: (error "Variable binding depth exceeds max-specpdl-size")
  url-generic-parse-url("http://proxy")
...
  url-generic-parse-url("http://proxy")
  url-scheme-register-proxy("http")
  url-scheme-get-property("http" default-port)
  url-generic-parse-url("http://proxy")
  url-scheme-register-proxy("http")
  url-scheme-get-property("http" default-port)
  url-generic-parse-url("http://www.some.where/")
  eval((url-generic-parse-url "http://www.some.where/"))

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This message and any attachments are confidential and should only
be read by those to whom they are addressed. If you are not the
intended recipient, please contact us, delete the message from your
computer and destroy any copies. Any distribution or copying without
our prior permission is prohibited.

Internet communications are not always secure and therefore the
E.ON Group does not accept legal responsibility for this message.
The recipient is responsible for verifying its authenticity before
acting on the contents. Any views or opinions presented are solely
those of the author and do not necessarily
represent those of the E.ON Group.

E.ON IS UK Limited, Westwood Way, Westwood Business Park,
Coventry, CV4 8LG.
Registered in England & Wales No. 5617434

Telephone +44 (0) 2476 192000
Fax +44 (0) 2476 42 5432

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From: Chong Yidong <cyd@stupidchicken.com>
To: "Oliver\, Peter" <Peter.Oliver@eon-is.co.uk>
Cc: 4191-done@emacsbugs.donarmstrong.com
Subject: Re: 23.1; Infinite recursion in url-generic-parse-url
Date: Fri, 11 Sep 2009 20:47:58 -0400
Message-ID: <87d45xvvi9.fsf@stupidchicken.com>

> When an HTTP URL passed to url-generic-parse-url does not include a
> port number, and the environment variable http_proxy is set and also
> does not include a port number, infinite recursion results.

Thanks for the bug report.  I've checked a fix into the trunk.