[Haskell-cafe] Network.Curl cookie jar madness

[Michael Orlitzky]

On 08/18/2012 08:52 PM, Michael Orlitzky wrote:
> I'm one bug away from a working program and need some help. I wrote a
> little utility that logs into LWN.net, retrieves an article, and creates
> an epub out of it.

I've created two pages where anyone can test this. The first just takes
any username and password via post and sets a session variable. The
second prints "Success." if the session variable is set, and "Failure."
if it isn't. The bash script,

  #!/bin/bash

  COOKIE_JAR='/tmp/network-curl-test-bash.txt'
  POST_DATA='username=foo&password=bar'
  URL1='http://michael.orlitzky.com/tmp/network-curl-test1.php'
  URL2='http://michael.orlitzky.com/tmp/network-curl-test2.php'

  echo 'Logging in...'
  curl --cookie-jar "${COOKIE_JAR}" \
       --data "${POST_DATA}" \
       "${URL1}"

  echo 'Retrieving second page...'
  curl --cookie "${COOKIE_JAR}" \
       "${URL2}"

works:

  $ ./bash-test.sh
  Logging in...
  Retrieving second page...
  Success.

The attached haskell program using Network.Curl, doesn't:

  $ runghc haskell-test.hs
  Logged in...
  Failure.

Any help is appreciated =)
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