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find_item() {
if test ${#1} -ge 7; then
set -- "$(find "$STATEDIR/items" -mindepth 1 -maxdepth 1 \
-regex "$STATEDIR/items/$1[0-9A-Za-z]*$")"
if test -n "$1" && test $(echo "$1" | wc -l) = 1; then
echo "$1"
return 0
fi
fi
return 1
}
case "$Method $Request_URI" in
"GET /"[0-9a-z]*)
if item=$(find_item ${Request_URI:1}); then
printf 'HTTP/1.1 200 OK\r\n'
printf 'Content-Type: %s\r\n' "$(file -ib $item)"
printf 'Server: %s\r\n' "$Server"
printf 'Connection: close\r\n'
printf 'Content-Length: %d\r\n' $(wc -c < $item)
printf '\r\n'
cat $item
exit
fi
;;
"POST /")
content=$(mktemp -t htgen.$$.content.XXXXXXXX)
trap "rm $content >&2" EXIT
case ${req_expect-} in 100-continue)
printf 'HTTP/1.1 100 Continue\r\n\r\n'
esac
head -c $req_content_length > $content
sha256=$(sha256sum -b $content | cut -d\ -f1)
base32=$(nix-hash --to-base32 --type sha256 $sha256)
item=$STATEDIR/items/$base32
ref=http://$req_host/$base32
if ! test -e $item; then
mkdir -v -p $STATEDIR/items >&2
cp -v $content $item >&2
fi
if item=$(find_item ${base32:0:7}); then
ref=$(echo "$ref"; echo "http://$req_host/${base32:0:7}")
fi
printf 'HTTP/1.1 200 OK\r\n'
printf 'Content-Type: text/plain; charset=UTF-8\r\n'
printf 'Server: %s\r\n' "$Server"
printf 'Connection: close\r\n'
printf 'Content-Length: %d\r\n' $(expr ${#ref} + 1)
printf '\r\n'
printf '%s\n' "$ref"
exit
;;
esac
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