It was a brute force attack on my root. I added an edit for clarification on the article. Basically I use another user for deployments and server work that has a pub key and didn't remove root login permissions.
The purpose of going through and removing the malicious scripts was to learn more about server security. I figured if I had been compromised I might as well learn what was causing it and how to fix it.
I have since toasted the server and set it back up with all of the things I mention in the article. I wrote the piece because I felt that there might be others out there who can learn from my mistakes and to also have a record for myself.
We are always learning and sometimes we need to learn the hard way, I got lucky in that this was on a side project and not any real client work.
I started writing my own language in JavaScript last Summer but gave up after only writing the Lexer because I didn't know how to continue. I would LOVE to read this blog post!
Agreed, it's an excellent resource. One of the best PL tutorials I've ever read.
But if you use the OCaml version with a recent version of OCaml, you'll run into a few issues. I sent in a patch with a few simple updates to the path mailing list earlier this year, but last I checked it wasn't merged.
Patch is here (it's a text file, despite the "bin" extension):
I wrote a tutorial some time back — http://lisperator.net/pltut/ — also targeted at JS. It walks you through parsing, evaluating, continuations and CPS compiling.
Parsing, evaluating, continuations and CPS... it seems similar to this language: https://curiosity-driven.org/continuations#interpreter but the syntax is clearly different. Also, that interpreter is implemented in ~320 lines of JS.
The app has been around for a little over a year. The search engine is powered by users of the extensions and apps and was released earlier this year. Hope you all enjoy! Happy Giffing!
It was a brute force attack on my root. I added an edit for clarification on the article. Basically I use another user for deployments and server work that has a pub key and didn't remove root login permissions.