2factor authentication via email

[nicosomb]

2factor authentication via email.
This setting can be disabled on config screen for each user.
User can also check "trusted computer" to avoid 2factor authentication for a delay.

Here is a screenshot after login step.

It's also possible to enable Google Authenticator, but I don't know if we need this validator. @j0k3r @tcitworld any opinion?

[tcitworld]

Maybe 30 days without access is enough ? 60 seems big to me.

[j0k3r]

Where are tests related to that part?

[nicosomb]

I don't know if tests are needed: the bundle is tested and I don't override the bundle behaviour.

[j0k3r]

I don't agree.

For example, you added form.user.twoFactorAuthentication in the configuration panel. What if user doesn't enable it, you should test that he won't get the form to put the 2 factor code. On the other side, if user enable it, you should test that the form will be shown when user log in.

Also, you added some logic in the User entity that need to be tested: isTrustedComputer.

[nicosomb]

OK, I will add tests.

[nicosomb]

Tests added.

[j0k3r]

I was thinking about these config to enable two factor.
I think they should be in parameters.yml so people won't have to update config.yml and keep a modified file which can be problematic when updating wallabag.

Also, the sender_email should be in parameters.yml

[nicosomb]

done.