Support redirection

[ongakuer]

Fix bug #11

[danikula]

@ongakuer please add unit test for this case. For example generate short link on video link and test redirection. Please add test for exceeding redirects count.

[ongakuer]

Sorry , I can`t make a redirect loop with short link…

[danikula]

But you can make short link on short link

[ongakuer]

Yes,I've tried. But short link server can analyze the redirect url , and just shorter the final link…

[danikula]

Use bit.ly and ow.ly and make short link on each other. They doesn't recognize each other.

[ongakuer]

I think something wrong with short url or HttpURLConnection. For the first time the short url response code was 301, and next time response code was 200

[danikula]

@ongakuer I merged your PR to master. Thanks for your contribution to project.

I think something wrong with short url or HttpURLConnection. For the first time the short url response code was 301, and next time response code was 200

It is not bug HttpURLConnection uses cache. See my comment.

[ltpquang]

@ongakuer why didn't you handle the code 307 Temporary Redirect? Is there any specific reason or you just simply missed it? My app is broken because the server side changes the redirecting code from 302 to 307