Follow redirects more than once

[ppalaga]

We currently assume only one redirect can come as a response to the original license URL. In fact, the response to the redirect URL can be a redirect again, as happens with http://glassfish.java.net/public/CDDL+GPL_1_1.html:

$ curl -v http://glassfish.java.net/public/CDDL+GPL_1_1.html > /dev/null
< HTTP/1.0 302 Found
< Location: https://glassfish.java.net/public/CDDL+GPL_1_1.html
curl -v https://glassfish.java.net/public/CDDL+GPL_1_1.html > /dev/null
< HTTP/1.0 301 Moved Permanently
< Location: http://javaee.github.io/glassfish

Funny enough, https://javaee.github.io/glassfish/ does not contain the license.

[ppalaga]

http://www.opensource.org/licenses/LGPL-2.1 is a better example: it redirects to http://opensource.org/licenses/LGPL-2.1 and then to https://opensource.org/licenses/LGPL-2.1 where the actual license resides