ETOOBUSY 🚀 minimal blogging for the impatient
Advent of Code puzzle input downloader
TL;DR
A shell program to download inputs for Advent of Code puzzles.
This is probably a note to myself for 2023.
It needs to access the cookie session from an authenticated browser. In Firefox:
- open Advent of Code and open the Developer Tools
- go to the
Networktab - login if you haven’t yet, refresh otherwise
- look for cookie
sessionin one of the fetched items - save it in
/path/to/local/session-cookie
You can call it in different ways:
/path/to/get-inputs.sh 2018 15 # 15th puzzle of 2018 edition
# in a directory named 2022
/path/to/get-inputs.sh 4 # 4th puzzle of 2022 edition
# in a directory named 2022, on December 13th
/path/to/get-inputs.sh # 13th puzzle of 2022 edition
Here’s the code:
get-inputs.sh
709 B
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#!/bin/sh
me="$(readlink -f "$0")"
md="$(dirname "$me")"
read session <"$md/local/session-cookie"
if [ $# -eq 2 ] ; then
year="$1"
shift
else
year="$(basename "$PWD")"
if printf %s "$year" | grep -v '^20[0-9][0-9]$' >/dev/null 2>&1 ; then
year="$(date +%Y)"
fi
fi
if [ $# -eq 1 ] ; then
day="$(printf %s "$1" | sed -e 's/^0//')"
day2="$(printf %s "0$day" | sed -e 's/^.*\(..\)$/\1/')"
else
read day day2 <<END
$(date +'%e %d')
END
fi
printf %s\\n "$day2"
blogurl='https://etoobusy.polettix.it/2022/11/28/aoc-inputs-downloader/'
curl -sL --cookie "session=$session" \
-H "User-Agent: $blogurl" \
"https://adventofcode.com/$year/day/$day/input" \
| tee "$day2.input"Enjoy!