fetchmsttfonts is available here fetchmsttfonts-12.0-lp160.49.3.noarch.rpm
Please download locally and install, do not use the one click installer.
(And as @arvidjaar suggests, it is just a script, so if you have a local version, just run it).
Be aware of the fact that, beyond sharing the same name, the Times New Roman, Arial and co. that you’ll get after running that script have no relation with the modern versions shipped with MS products: since their release, microsoft changed metrics, character set, font features, and, specially, licenses of the new fonts so you’ll not get “compatibility” from that package, just some really ancient files created well before the OpenType standard. You’ll be better off (even if they are far from perfect) with the font substitutions offered by LibreOffice.