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dashfront/scripts/generate-cert.sh
2026-07-20 00:39:16 +02:00

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#!/usr/bin/env bash
# Generate a self-signed TLS cert for local HTTPS (Vite on :4308).
set -euo pipefail
ROOT="$(cd "$(dirname "$0")/.." && pwd)"
CERT_DIR="${CERT_DIR:-$ROOT/certs}"
DAYS="${CERT_DAYS:-825}"
KEY="$CERT_DIR/key.pem"
CERT="$CERT_DIR/cert.pem"
CNF="$CERT_DIR/openssl.cnf"
mkdir -p "$CERT_DIR"
# Extra hostnames / IPs: ./scripts/generate-cert.sh 192.168.188.22 myhost.local
EXTRA=("$@")
SAN="DNS:localhost,IP:127.0.0.1"
for entry in "${EXTRA[@]}"; do
if [[ "$entry" =~ ^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
SAN+=",IP:$entry"
else
SAN+=",DNS:$entry"
fi
done
# Include non-loopback IPv4 addresses so LAN / WebView origins work.
while read -r ip; do
[[ -n "$ip" ]] || continue
[[ "$SAN" == *",$ip"* || "$SAN" == *"IP:$ip"* ]] && continue
SAN+=",IP:$ip"
done < <(hostname -I 2>/dev/null | tr ' ' '\n' | grep -E '^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$' || true)
cat >"$CNF" <<EOF
[req]
default_bits = 2048
prompt = no
default_md = sha256
distinguished_name = dn
x509_extensions = v3_req
[dn]
CN = localhost
[v3_req]
subjectAltName = $SAN
keyUsage = digitalSignature, keyEncipherment
extendedKeyUsage = serverAuth
EOF
openssl req -x509 -newkey rsa:2048 -sha256 -days "$DAYS" -nodes \
-keyout "$KEY" \
-out "$CERT" \
-config "$CNF"
chmod 600 "$KEY"
rm -f "$CNF"
# Base64(DER) — preferred QR payload (plain text, no JSON/URL/PEM wrappers).
DER_B64="$(openssl x509 -in "$CERT" -outform DER | base64 -w0)"
printf '%s\n' "$DER_B64" >"$CERT_DIR/cert.der.b64"
echo "Wrote $CERT"
echo "Wrote $KEY"
echo "Wrote $CERT_DIR/cert.der.b64"
echo "SAN: $SAN"
echo "Valid for $DAYS days."
echo
echo "=== certificate ==="
openssl x509 -in "$CERT" -noout -subject -issuer -dates -fingerprint -sha256 -ext subjectAltName
echo
echo "=== QR (base64 DER, raw payload) ==="
printf '%s' "$DER_B64" | node "$ROOT/scripts/qr-cert.mjs"
echo
echo "Start HTTPS: npm run dev:https"
echo "URL: https://localhost:4308/"