In order to redirect the user after authentication, Authelia uses
rd query parameter provided by the proxy. However an attacker could
use phishing to make the user be redirected to a bad domain. In order
to avoid the user to be redirected to a bad location, Authelia now
verifies the redirection URL is under the protected domain.
Use the polyfill version of u2f API provided by Google.
https://github.com/mastahyeti/u2f-api
This polyfill is at least compatible with Chrome and
Firefox after enabling the U2F support.
[HOWTO] Enable U2F in Firefox >= 57:
Navigate to 'about:config' and search for 'u2f' option.
Double-click on the line to toggle the option.
The u2f-api package does not use the official u2f script provided by Yubikey.
Unfortunately, it was blocked by Firefox. This change reintroduces the
official u2f script.
This URL is used when user access the authentication domain without providing
the 'redirect' query parameter. In that case, Authelia does not know
where to redirect the user.
If the parameter is defined, Authelia can redirect the user to a default page
when no redirect parameter is provided.
When user is already authenticated and tries to access the authentication
domain, the "already logged in" page is rendered and it now tells the user he
is to be redirected in few seconds and uses this URL to redirect.
This parameter is optional. If it is not provided, there is only a notification
message at the end of the authentication process, as before, and the user is
not redirected when visiting the authentication domain while already
authenticated.
Now, /verify can return 401 or 403 depending on the user authentication.
Every public API endpoints and pages return 200 with error message in
JSON body or 401 if the user is not authorized.
This policy makes it complicated for an attacker to know what is the source of
the failure and hide server-side bugs (not returning 500), bugs being potential
threats.
Client and server now have their own tsconfig so that the transpilation is only
done on the part that is being modified.
It also allows faster transpilation since tests are now excluded from tsconfig.
They are compiled by ts-node during unit tests execution.
