added import script (allows import of existing certificates from the original letsencrypt client)

import.sh

+#!/bin/bash
+
+set -e
+set -u
+set -o pipefail
+
+SCRIPTDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+BASEDIR="${SCRIPTDIR}"
+LETSENCRYPT="/etc/letsencrypt"
+
+. "${SCRIPTDIR}/config.sh"
+
+if [[ -e "${BASEDIR}/domains.txt" ]]; then
+  DOMAINS_TXT="${BASEDIR}/domains.txt"
+elif [[ -e "${SCRIPTDIR}/domains.txt" ]]; then
+  DOMAINS_TXT="${SCRIPTDIR}/domains.txt"
+else
+  echo "You have to create a domains.txt file listing the domains you want certificates for. Have a look at domains.txt.example."
+  echo "For the purpose of this import script the file can be empty, but it has to exist."
+  exit 1
+fi
+
+for certdir in "${LETSENCRYPT}/live/"*; do
+  domain="$(basename "${certdir}")"
+  echo "Processing ${domain}"
+
+  # Check if we already have a certificate for the same (main) domain
+  if [ -e "${BASEDIR}/certs/${domain}" ]; then
+    echo " + Skipping: Found existing certificate directory, don't want to delete anything."
+    continue
+  fi
+
+  # Check if private-key, certificate and fullchain exist
+  if [[ ! -e "${certdir}/privkey.pem" ]]; then
+    echo " + Skipping: Private key is missing."
+    continue
+  fi
+  if [[ ! -e "${certdir}/cert.pem" ]]; then
+    echo " + Skipping: Certificate is missing."
+    continue
+  fi
+  if [[ ! -e "${certdir}/fullchain.pem" ]]; then
+    echo " + Skipping: Chain is missing."
+    continue
+  fi
+
+  # Check if certificate still valid
+  set +e; openssl x509 -checkend 0 -noout -in "${certdir}/cert.pem" > /dev/null 2> /dev/null; expired="${?}"; set -e
+  if [[ "${expired}" = "1" ]]; then
+    echo " + Skipping: Certificate is expired."
+    continue
+  fi
+
+  # Import certificate
+  timestamp="$(date +%s)"
+
+  echo " + Adding list of domains to ${DOMAINS_TXT}"
+  SAN="$(openssl x509 -in "${certdir}/cert.pem" -noout -text | grep -A1 "Subject Alternative Name" | grep "DNS")"
+  SAN="${SAN//DNS:/}"
+  SAN="${SAN//, / }"
+  altnames="${domain}"
+  for altname in ${SAN}; do
+    if [[ ! "${altname}" = "${domain}" ]]; then
+      altnames="${altnames} ${altname}"
+    fi
+  done
+  echo "${altnames}" >> "${DOMAINS_TXT}"
+
+  mkdir -p "${BASEDIR}/certs/${domain}"
+
+  echo " + Importing private key"
+  cat "${certdir}/privkey.pem" > "${BASEDIR}/certs/${domain}/privkey-${timestamp}.pem"
+  ln -s "privkey-${timestamp}.pem" "${BASEDIR}/certs/${domain}/privkey.pem"
+
+  echo " + Importing certificate"
+  cat "${certdir}/cert.pem" > "${BASEDIR}/certs/${domain}/cert-${timestamp}.pem"
+  ln -s "cert-${timestamp}.pem" "${BASEDIR}/certs/${domain}/cert.pem"
+
+  echo " + Importing chain"
+  cat "${certdir}/fullchain.pem" > "${BASEDIR}/certs/${domain}/fullchain-${timestamp}.pem"
+  ln -s "fullchain-${timestamp}.pem" "${BASEDIR}/certs/${domain}/fullchain.pem"
+done