Filepicker and UploadDir component should allow to login/logout to west-life portal

[TomasKulhanek]

Filepicker and UploadDir component should allow to login/logout to west-life portal. This may apply for any component - detecting HTTP 401 unauthorized to redirect

[TomasKulhanek]

/virtualfolder redirects to /login when 403 is returned by backend service - this leads in

• public portal to be redirected to VRE login -> ARIA interface which after login redirects to /virtualfolder
• private portal (westlife VM) -> user vagrant/vagrant needs to be filled
• private portal (westlife VM) without VRE -> no 403 is thrown - all users share the same space

Current issue: When going to /virtualfolder/filepickercomponent.html - 403 is redirected to /login and after user logs in, it is not redirected back to filepicker.html but only to the default /virtualfolder/ (vf settings not the file picker component)

[TomasKulhanek]

https://github.com/h2020-westlife-eu/VRE/issues/10

[TomasKulhanek]

fixed by pullrequest

[TomasKulhanek]

As a side note, when not logged in, a javascript type flash error is poping-up in the filepicker window before the redirection to ARIA login page (see screenshot attached). That's not really user-friendly I would say, couldn't we just have a transparent redirection to the login page without any error popping up when a user is not logged in yet?