Welcome!

Welcome to Kirsle.net! This is the personal website of Noah Petherbridge, and it's where my various software projects and web blog lives.

Apps composed of open source pieces

Noah Petherbridge
kirsle
Posted by Noah Petherbridge on Thursday, September 14 2017 @ 06:41:15 PM

The Internet is full of freely available source code. If you're a software engineer and you're writing a new application, chances are a lot of the code you're writing has already been written thousands of times before by other engineers that came before you.

Some engineers seem to believe you can compose an entire complicated app just by mixing and matching tiny pieces already written before you. Pull a session manager from here, a template engine from there... a login manager, a password manager, a database accessor... all of these being small off-the-shelf components that you're trying to duct tape together into one coherent app. The actual code you as a developer write is just the few lines needed to stitch these all together. You'll have a production-ready app running in just a few minutes!

Sure, but in my career as a software engineer I've learned that it's usually better to write all those pieces yourself so that they fit together perfectly how you want, not just "good enough."

This is a story of a particularly annoying Python module I was dealing with at work.

Read more...

Do you need to store that IP address?

Noah Petherbridge
kirsle
Posted by Noah Petherbridge on Wednesday, August 16 2017 @ 03:26:14 PM

I was reading this ACLU blog post about how DreamHost was served with a warrant to hand over IP addresses of some 1.3 million visitors to a website they host, and it got me thinking: do websites really need to store IP addresses of their visitors?

There are a lot of VPN companies such as Private Internet Access that advertise far and wide that they explicitly chose not to keep any logs. The idea is that if the VPN provider is served with a warrant for user activity, they would have no data to hand over, because they never stored anything in the first place. Why don't websites do that?

Read more...

Go Plugins and Avoiding Cyclic Dependencies

Noah Petherbridge
kirsle
Posted by Noah Petherbridge on Thursday, July 20 2017 @ 01:50:13 PM

The other day, I started a project to eventually replace the backend of Kirsle.net with a Go program instead of the current Python one (Rophako). It will support a similar feature set (being modular with even the core functionality, like user accounts and web blogs, being served by built-in "plugins" and allowing users to extend it with their own plugins).

The plugin system will support both compile-time plugins (your main.go imports and registers all the plugins you need when compiling the binary), and run-time plugins using Go's plugins from *.so files support.

This post will focus on the former, compile-time plugins, and how I ran into a cyclic dependency issue and worked around it.

Read more...

Categories:

[ 0 comments | Add comment | Permalink ]

Why Tabs are Better than Spaces

Noah Petherbridge
kirsle
Posted by Noah Petherbridge on Thursday, June 15 2017 @ 03:34:13 PM

This is going to be yet another blog post in the "tabs vs. spaces" holy war that software developers like to fight about. I generally prefer tabs over spaces, but for certain types of programming languages I do use spaces instead of tabs.

I indent my Python and CoffeeScript with spaces, but all the other languages I use (Perl, Go, JavaScript, HTML, ...) get the tab characters.

Read more...

Poor Man's ngrok

Noah Petherbridge
kirsle
Posted by Noah Petherbridge on Thursday, May 04 2017 @ 10:23:08 AM

Recently, I was developing a Python/Flask app to implement Web Hooks for a third-party API that I was working with. The API recommended the use of ngrok during local development so that the server running on your local computer could be accessed publicly over the Internet (so that their API could reach yours).

ngrok is cool and all, but for their free plan they randomize the subdomain they give you every time you start the program. This meant I always had to log into my API account and change my Web Hook URL each day.

What ngrok is doing is nothing new: I've written about using SSH to forward ports between machines, and figured it should be easy enough for me to configure a subdomain on my own server that forwards traffic to another port that I could open when I need to.

Read more...