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#!/bin/sh -e
ROOTDIR=/var/www/gemini
while getopts d: name; do
case "$name" in
d) ROOTDIR="$OPTARG" ;;
?) printf "usage: %s [-d rootdir]\n" "$0" >&2
exit 1 ;;
esac
done
cd "$ROOTDIR"
cr="$(printf "\r")"
read -r line
case "$line" in
gemini://*$cr) ;;
*) printf "59 Bad Request\n"
exit 1 ;;
esac
# strip gemini:// prefix
line=${line##gemini://}
# strip \r suffix
line=${line%$cr}
set -f
IFS=/
# shellcheck disable=2086
set -- $line
unset IFS
set +f
HOSTNAME=$1
shift
while [ "$#" -gt 1 ]; do
if [ -d "$1" ]; then
cd "$1"
shift
continue
elif [ -f "$1" ] ; then break
else
printf "50 Not Found\r\n"
exit 1
fi
done
# assume index.gmi if not specified
if [ -d "$1" ]; then
cd "$1"
set -- "index.gmi"
fi
# now $1 is the requested file.
file="$1"
if [ ! -f "$file" ] || [ ! -r "$file" ]; then
printf "50 Not Found\r\n"
exit 1
fi
# TODO: use /etc/mime.types
mimetype="text/plain"
case "$file" in *.gmi) mimetype="text/gemini" ;; esac
printf "20 %s\r\n" "$mimetype"
cat "$file"
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