httr equivalent to curl::has_internet

[boshek]

Such an amazing and comprehensive package that really does almost everything. Thank you for developing this.

One thing - currently (AFAIK) httr does not offer any functions that check if the user actually has access to the internet; checking for the internet is not part of a httr workflow. This is potentially problematic as 492 packages on CRAN import on httr and it seems likely that many of them are not following this recent revision to the CRAN policies:

Packages which use Internet resources should fail gracefully with an informative message if the resource is not available (and not give a check warning nor error).

The best way that I know to currently meet the above CRAN requirement is with curl::has_internet(). I am curious, if you would consider re-exporting that function or provide similar functionality in another way?

I realize that curl is already imported by httr but I think explicitly including a function like this would provide a useful component of the general httr workflow.