Drupal 8.x

Hello,

I hope people can help with this and point me in the right direction.

I have a site that wants to support IP based authentication for clients. An external IP db will contain IP ranges connected to corporate user accounts.

I want to be able to auto login a user if the visitor comes from an approved IP Address. The issue I am experiencing is that the cache makes this tricky.

So I am wondering if it is possible to run this auth, if a match is found log the user in all before the bootstrap has decided to show a cached page...?

I have this code for homepage:

  <div{{ content_attributes.addClass('content-boxing') }}>
    {{ content }}
  </div>

but i want print this structure in homepage by twig:

<div> thumbnaile of post's image_field </div>

<div> post tiltle </div>

<div> post footer (date and authure) </div>

<div> post teaser </div>

<div> tags </div>

<div> readmore </div>

Hello,

On several posts, we can see that the behavior of 'unpublish' a content if this content isn't in the source datas (csv, xml...) is a actual question. 

With the same princip, if a content is not present in the source, can we modify a field value on this content?

Example: I'm importing products with a xml file on my site, if a product don't exists in the source file, can I modifiy the status of the product with "sold" ? How can i proceed?

Thanks for your precisions on this case.

Hello

at first, I should apologize for my English!

we have a website up and running and we want to implement a very simple document management system for our office letters. this is done in the back-office and for employees. the scenario is: