Re: [gentoo-user] Re: fetch restriction bypass

[Michael Orlitzky]

On 04/30/2012 02:45 PM, James wrote:
> Michael Orlitzky <michael <at> orlitzky.com> writes:
>
>
>> You'll have to script something.
>

I gave this a serious shot, but it's not easy.

First, you can override the ebuild environment:

  $ cat /etc/portage/bashrc
  if [ "${EBUILD_PHASE}" == "clean" ] && [ "${PN}" == "sun-jdk" ]; then
  ...

You can parse out the important stuff from the ebuild. This sets JDK_URI
to the value contained in the ebuild:

  eval `"${GREP}" JDK_URI= "${EBUILD}"`

And you can even parse the URL out of the HTML file pretty easily with a
regular expression. But, unfortunately, they're checking for cookies:

  $ wget http://download.oracle.com/otn-pub/java/jdk/6u31-b04/jdk-
         6u31-linux-x64.bin
  ...
  HTTP request sent, awaiting response... 302 Moved Temporarily
  Location: http://download.oracle.com/errors/download-fail-1505220.html

And, the cookies don't get set in a normal HTTP request. So you can't
just `curl $JDK_URI` and save the cookies.

It looks like the URL that sets the cookies is created by that
javascript lightbox code, so you need to be able to evaluate JS, get
that URL, hit the page, and save its cookies before you're allowed to
download the file.

Finally, the cookies are dynamic, and not something like let_me_in=True.
So maybe it's still possible, but scp is looking a lot better right now.