Temporary Link to access

Thank you for your kind words.

It is correct that this is not possible, but it is an interesting idea, and while I think it is too “niche” to implement in core, I do see it as an extension to the plugin.

Should the temporary links be time constrained/somehow expire?

Can you tell me more about your use case, so I can understand how you were thinking of using a system like this.

Yes it makes sense. I have not used Dropbox for a while though.

There is already a filter in the plugin you can use to “override” restrictions. Currently the filter is used to make administrators have access to everything regardless of Access Levels.

So what needs to be done is:
1. Add a generator that creates a token with an expiration date for the page.
2. When visiting the special link, check if that token is present and valid.

Step 2 would be something like this:

add_filter('rua/user/global-access', function($has_access,$user){
    $token = isset($_GET["token"]) ? $_GET["token"] : null;
    if($token) {
        $has_access = is_token_valid($token,get_the_ID());
    }
    return $has_access;
});

A drawback is that this would not work for archive pages.

Great that you have a solution. If you want to share it and see if it can be part of the plugin, you can make a pull request at https://github.com/intoxstudio/restrict-user-access (or just paste the code here).

You can safely remove the $user argument if you don’t need it. The error is that in the example I forgot to tell the filter that it takes 2 arguments instead of 1.

add_filter('rua/user/global-access', function($has_access,$user){
    ...
},10,2);