mirror of https://github.com/dirtbags/moth.git
59 lines
1.3 KiB
Bash
Executable File
59 lines
1.3 KiB
Bash
Executable File
#! /bin/sh -e
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if [ $# -ne 1 ]; then
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echo "Usage: $0 TEAM" 1>&2
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exit 64
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fi
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escape () {
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sed 's/&/\&/g;s/</\</g;s/>/\>/g'
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}
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# Don't overwrite files
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set -C
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STATE=$CTF_BASE/state
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WWW=$CTF_BASE/www
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mkdir -p $STATE/teams/names
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mkdir -p $STATE/teams/colors
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if ! [ -f $STATE/teams/salt ]; then
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dd if=/dev/urandom count=1 2>/dev/null | md5sum | cut -b 1-8 > $STATE/teams/salt
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fi
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salt=$(cat $STATE/teams/salt)
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# Assign a color. I spent weeks selecting a color pallette that
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# wouldn't be hell on people with protanopia. Please don't change these
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# colors.
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nteams=$(ls $STATE/teams/names/ | wc -l)
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case $(expr $nteams % 10) in
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0) color=a6cee3;;
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1) color=1f78b4;;
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2) color=b2df8a;;
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3) color=33a02c;;
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4) color=fb9a99;;
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5) color=e31a1c;;
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6) color=fdbf6f;;
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7) color=ff7f00;;
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8) color=cab2d6;;
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9) color=6a3d9a;;
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*)
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echo 'ERROR ERROR' 1>&2
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echo 'DOES NOT COMPUTE' 1>&2
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exit 69
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;;
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esac
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# Compute hash of team name; they'll use this for everything in the
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# contest instead of their team name, which makes stuff much easier on
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# me since all team hashes are in the set /[0-9a-f]{8}/.
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hash=$(printf "%s:%s" $salt "$1" | md5sum | cut -b 1-8)
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echo "$1" > $STATE/teams/names/$hash
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echo "$color" > $STATE/teams/colors/$hash
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echo "Registered with hash: $hash"
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