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SocialPub/deploy/max/geo-update.sh
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#!/usr/bin/env bash
# Fetches the month's DB-IP Lite city and ASN databases (CC BY 4.0, https://db-ip.com) into the directory PrivaPub reads
# them from (Statistics:GeoDirectory). The app swaps to new files on its own; a failed download leaves the old ones.
set -euo pipefail
dir="${GEO_DIR:-/var/lib/privapub/geo}"
tmp=$(mktemp -d); trap 'rm -rf "$tmp"' EXIT
this=$(date -u +%Y-%m)
last=$(date -u -d "$(date -u +%Y-%m-15) -1 month" +%Y-%m)
for kind in city asn; do
got=""
for month in "$this" "$last"; do
if curl -fsS --max-time 900 -o "$tmp/$kind.gz" "https://download.db-ip.com/free/dbip-$kind-lite-$month.mmdb.gz"; then
got=$month; break
fi
done
[ -n "$got" ] || { echo "no $kind database for $this or $last" >&2; exit 1; }
gunzip -t "$tmp/$kind.gz"
gunzip -c "$tmp/$kind.gz" > "$tmp/dbip-$kind-lite.mmdb"
[ "$(stat -c %s "$tmp/dbip-$kind-lite.mmdb")" -gt 1000000 ] || { echo "the $kind database is too small" >&2; exit 1; }
install -m 640 "$tmp/dbip-$kind-lite.mmdb" "$dir/.dbip-$kind-lite.mmdb.new"
mv -f "$dir/.dbip-$kind-lite.mmdb.new" "$dir/dbip-$kind-lite.mmdb"
echo "$kind: DB-IP Lite $got"
done