Skip to main content

The Curl Pipe

If anything deserves to be called an anti-pattern it is probably the common and worry-inducing practice of documenting your installation process by asking asking users to copy and paste a line into their shell that will snag some file off the internet and pipe its contents directly into your shell to execute.

Sometimes this is even done as root.

This is something known to be awful, but which remains a cornerstone via its use by some of the most important tools in our belts. Homebrew does it. NPM does it, too. And some projects look better, but are they? Pip asks you to download get-pip.py and run it to install, which isn’t practically any different than piping from curl, just less efficient.

But worst of all, we might as well be doing this even more often, because our most depended about tooling is all just as guilty even without doing the curl pipe sh dance. What do you think happens when you pip install your favorite Python package, anyway? Pip downloads a file from the internet and executes it. Simple as that, for the purposes here. Sure, these days we have saner defaults. It has to be HTTPS and it has to be from PyPI by default, but its not like these packages are screened.

For all our concerns about security and frets over SHELLSHOCK and POODLE vulnerabilities, doesn’t it seem like the developer community does an awful lot of executing random files off the internet?

Comments

Carl Trachte said…
"lalalalalalalalalalala . . ."
fruch said…
We aren't afraid, cause we'll be able to handle. Don't we ?

Popular posts from this blog

CARDIAC: The Cardboard Computer

I am just so excited about this. CARDIAC. The Cardboard Computer. How cool is that? This piece of history is amazing and better than that: it is extremely accessible. This fantastic design was built in 1969 by David Hagelbarger at Bell Labs to explain what computers were to those who would otherwise have no exposure to them. Miraculously, the CARDIAC (CARDboard Interactive Aid to Computation) was able to actually function as a slow and rudimentary computer.  One of the most fascinating aspects of this gem is that at the time of its publication the scope it was able to demonstrate was actually useful in explaining what a computer was. Could you imagine trying to explain computers today with anything close to the CARDIAC? It had 100 memory locations and only ten instructions. The memory held signed 3-digit numbers (-999 through 999) and instructions could be encoded such that the first digit was the instruction and the second two digits were the address of memory to operate on

The Range of Content on Planet Python

I've gotten a number of requests lately to contribute only Python related material to the Planet Python feeds and to be honest these requests have both surprised and insulted me, but they've continued. I am pretty sure they've come from a very small number of people, but they have become consistent. This is probably because of my current habit of writing about NaNoWriMo every day and those who aren't interested not looking forward to having the rest of the month reading about my novel. Planet Python will be getting a feed of only relevant posts in the future, but I'm going to be honest: I am kind of upset about it. I don't care if anyone thinks it is unreasonable of me to be upset about it, because the truth is Planet Python means something to me. It was probably the first thing I did that I considered "being part of the community" when I submitted my meager RSS feed to be added some seven years ago. My blog and my name on the list of authors at Plan

Interrupting Coders Isn’t So Bad

Here’s a hot take: disrupting coders isn’t all that bad. Some disruptions are certainly bad but they usually aren’t. The coder community has overblown the impact. A disruption can be a good thing. How harmful disruption might be a symptom of other problems. There are different kinds of disruptions. They are caused by other coders on your team, managers and other non-coders, or meetings throughout the day. The easiest example to debunk is a question from a fellow developer. Imagine someone walks over to your desk or they ping you on Slack, because they have “one quick question.” Do you get annoyed at the interruption when you were in the middle of something important? You help out your teammate quickly and get back to work, trying to pick up where you left off. That’s a kind of interruption we complain about frequently, but I’m not convinced this is all that bad. You are being disrupted but your team, of which you are only one member of the whole unit, is working smoothly. You u