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freedombone/src/freedombone-addcert

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#!/bin/bash
#
# .---. . .
# | | |
# |--- .--. .-. .-. .-.| .-. .--.--. |.-. .-. .--. .-.
# | | (.-' (.-' ( | ( )| | | | )( )| | (.-'
# ' ' --' --' -' - -' ' ' -' -' -' ' - --'
#
# Freedom in the Cloud
#
# Create self-signed or Let's Encrypt certificates on Debian
# License
# =======
#
# Copyright (C) 2015-2016 Bob Mottram <bob@freedombone.net>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
PROJECT_NAME='freedombone'
export TEXTDOMAIN=${PROJECT_NAME}-addcert
export TEXTDOMAINDIR="/usr/share/locale"
CONFIGURATION_FILE=$HOME/${PROJECT_NAME}.cfg
COMPLETION_FILE=$HOME/${PROJECT_NAME}-completed.txt
UTILS_FILES=/usr/share/${PROJECT_NAME}/utils/${PROJECT_NAME}-utils-*
for f in $UTILS_FILES
do
source $f
done
# Don't pin certs by default
PIN_CERTS=
HOSTNAME=
LETSENCRYPT_HOSTNAME=
COUNTRY_CODE="US"
AREA="Free Speech Zone"
LOCATION="Freedomville"
ORGANISATION="Freedombone"
UNIT="Freedombone Unit"
EXTENSIONS=""
NODH=
DH_KEYLENGTH=2048
INSTALL_DIR=/root/build
LETSENCRYPT_SERVER='https://acme-v01.api.letsencrypt.org/directory'
MY_EMAIL_ADDRESS=
FRIENDS_MIRRORS_SERVER=
FRIENDS_MIRRORS_PASSWORD=
FRIENDS_MIRRORS_SSH_PORT=
MY_MIRRORS_PASSWORD=
function show_help {
echo ''
echo $"${PROJECT_NAME}-addcert -h [hostname] -c [country code] -a [area] -l [location]"
echo $' -o [organisation] -u [unit] --ca "" --nodh ""'
echo ''
echo $'Creates a self-signed certificate for the given hostname'
echo ''
echo $' --help Show help'
echo $' -h --hostname [name] Hostname'
echo $' -e --letsencrypt [hostname] Hostname to use with Lets Encrypt'
echo $' -s --server [url] Lets Encrypt server URL'
echo $' -c --country [code] Optional country code (eg. US, GB, etc)'
echo $' -a --area [description] Optional area description'
echo $' -l --location [locn] Optional location name'
echo $' -o --organisation [name] Optional organisation name'
echo $' -u --unit [name] Optional unit name'
echo $' --email [address] Email address for letsencrypt'
echo $' --dhkey [bits] DH key length in bits'
echo $' --nodh "" Do not calculate DH params'
echo $' --ca "" Certificate authority cert'
echo ''
exit 0
}
while [[ $# > 1 ]]
do
key="$1"
case $key in
--help)
show_help
;;
-h|--hostname)
shift
HOSTNAME="$1"
;;
-e|--letsencrypt)
shift
LETSENCRYPT_HOSTNAME="$1"
;;
--email)
shift
MY_EMAIL_ADDRESS="$1"
;;
-s|--server)
shift
LETSENCRYPT_SERVER="$1"
;;
-c|--country)
shift
COUNTRY_CODE="$1"
;;
-a|--area)
shift
AREA="$1"
;;
-l|--location)
shift
LOCATION="$1"
;;
-o|--organisation)
shift
ORGANISATION="$1"
;;
-u|--unit)
shift
UNIT="$1"
;;
--ca)
shift
EXTENSIONS="-extensions v3_ca"
ORGANISATION="Freedombone-CA"
;;
--nodh)
shift
NODH="true"
;;
--dhkey)
shift
DH_KEYLENGTH=${1}
;;
--pin)
shift
PIN_CERTS=${1}
;;
*)
# unknown option
;;
esac
shift
done
if [ ! $HOSTNAME ]; then
if [ ! $LETSENCRYPT_HOSTNAME ]; then
echo $'No hostname specified'
exit 5748
fi
fi
if ! which openssl > /dev/null ;then
echo $"$0: openssl is not installed, exiting" 1>&2
exit 5689
fi
if [ ! -d /etc/ssl/mycerts ]; then
mkdir /etc/ssl/mycerts
fi
CERTFILE=$HOSTNAME
function add_cert_letsencrypt {
CERTFILE=$LETSENCRYPT_HOSTNAME
# obtain the email address for the admin user
if [ ! $MY_EMAIL_ADDRESS ]; then
if [ -f $CONFIGURATION_FILE ]; then
read_config_param MY_EMAIL_ADDRESS
fi
fi
if [ ! $MY_EMAIL_ADDRESS ]; then
if [ -f $COMPLETION_FILE ]; then
if grep -q "Admin user:" $COMPLETION_FILE; then
function_check get_completion_param
ADMIN_USER=$(get_completion_param "Admin user")
if [ ${#ADMIN_USER} -eq 0 ]; then
exit 463732
fi
MY_EMAIL_ADDRESS=$ADMIN_USER@$HOSTNAME
fi
fi
fi
if [ ! -f /usr/bin/certbot ]; then
apt-get -yq install certbot -t jessie-backports
if [ ! -f /usr/bin/certbot ]; then
echo $'LetsEncrypt certbot failed to install'
exit 762830
fi
fi
# stop the web server
systemctl stop nginx
certbot certonly -n --server $LETSENCRYPT_SERVER --standalone -d $LETSENCRYPT_HOSTNAME --renew-by-default --agree-tos --email $MY_EMAIL_ADDRESS
if [ ! "$?" = "0" ]; then
echo $"Failed to install letsencrypt for domain $LETSENCRYPT_HOSTNAME"
systemctl start nginx
exit 63216
fi
# replace some legacy filenames
if [ -f /etc/ssl/certs/${LETSENCRYPT_HOSTNAME}.bundle.crt ]; then
mv /etc/ssl/certs/${LETSENCRYPT_HOSTNAME}.bundle.crt /etc/ssl/certs/${LETSENCRYPT_HOSTNAME}.pem
fi
if [ -f /etc/ssl/certs/${LETSENCRYPT_HOSTNAME}.crt ]; then
mv /etc/ssl/certs/${LETSENCRYPT_HOSTNAME}.crt /etc/ssl/certs/${LETSENCRYPT_HOSTNAME}.pem
fi
sed -i "s|ssl_certificate /etc/ssl/certs/${LETSENCRYPT_HOSTNAME}.bundle.crt|ssl_certificate /etc/ssl/certs/${LETSENCRYPT_HOSTNAME}.pem|g" /etc/nginx/sites-available/$LETSENCRYPT_HOSTNAME
sed -i "s|ssl_certificate /etc/ssl/certs/${LETSENCRYPT_HOSTNAME}.crt|ssl_certificate /etc/ssl/certs/${LETSENCRYPT_HOSTNAME}.pem|g" /etc/nginx/sites-available/$LETSENCRYPT_HOSTNAME
# link the private key
if [ -f /etc/ssl/private/${LETSENCRYPT_HOSTNAME}.key ]; then
if [ ! -f /etc/ssl/private/${LETSENCRYPT_HOSTNAME}.key.old ]; then
mv /etc/ssl/private/${LETSENCRYPT_HOSTNAME}.key /etc/ssl/private/${LETSENCRYPT_HOSTNAME}.key.old
else
rm -f /etc/ssl/private/${LETSENCRYPT_HOSTNAME}.key
fi
fi
ln -s /etc/letsencrypt/live/${LETSENCRYPT_HOSTNAME}/privkey.pem /etc/ssl/private/${LETSENCRYPT_HOSTNAME}.key
# link the public key
if [ -f /etc/ssl/certs/${LETSENCRYPT_HOSTNAME}.pem ]; then
if [ ! -f /etc/ssl/certs/${LETSENCRYPT_HOSTNAME}.pem.old ]; then
mv /etc/ssl/certs/${LETSENCRYPT_HOSTNAME}.pem /etc/ssl/certs/${LETSENCRYPT_HOSTNAME}.pem.old
else
rm -f /etc/ssl/certs/${LETSENCRYPT_HOSTNAME}.pem
fi
fi
ln -s /etc/letsencrypt/live/${LETSENCRYPT_HOSTNAME}/fullchain.pem /etc/ssl/certs/${LETSENCRYPT_HOSTNAME}.pem
cp /etc/letsencrypt/live/${LETSENCRYPT_HOSTNAME}/fullchain.pem /etc/ssl/mycerts/${LETSENCRYPT_HOSTNAME}.pem
update_default_domain
systemctl start nginx
if [ $PIN_CERTS ]; then
${PROJECT_NAME}-pin-cert $LETSENCRYPT_HOSTNAME
if [ ! "$?" = "0" ]; then
echo $"Certificate for $LETSENCRYPT_HOSTNAME could not be pinned"
exit 62878
fi
fi
}
function add_cert_selfsigned {
if [[ $ORGANISATION == "Freedombone-CA" ]]; then
CERTFILE="ca-$HOSTNAME"
fi
openssl req -x509 ${EXTENSIONS} -nodes -days 3650 -sha256 \
-subj "/O=$ORGANISATION/OU=$UNIT/C=$COUNTRY_CODE/ST=$AREA/L=$LOCATION/CN=$HOSTNAME" \
-newkey rsa:4096 -keyout /etc/ssl/private/${CERTFILE}.key \
-out /etc/ssl/certs/${CERTFILE}.crt
chmod 400 /etc/ssl/private/${CERTFILE}.key
chmod 640 /etc/ssl/certs/${CERTFILE}.crt
cp /etc/ssl/certs/${CERTFILE}.crt /etc/ssl/mycerts
if [ $PIN_CERTS ]; then
${PROJECT_NAME}-pin-cert $CERTFILE
if [ ! "$?" = "0" ]; then
echo $"Certificate for $CERTFILE could not be pinned"
exit 62879
fi
fi
}
function generate_dh_params {
if [ ! $NODH ]; then
if [ ! -f /etc/ssl/certs/${CERTFILE}.dhparam ]; then
${PROJECT_NAME}-dhparam -h ${CERTFILE} --fast yes
fi
fi
}
function restart_web_server {
if [ -f /etc/init.d/nginx ]; then
/etc/init.d/nginx reload
fi
}
function make_cert_bundle {
# Create a bundle of your certificates
cat /etc/ssl/mycerts/*.crt /etc/ssl/mycerts/*.pem > /etc/ssl/${PROJECT_NAME}-bundle.crt
tar -czvf /etc/ssl/${PROJECT_NAME}-certs.tar.gz /etc/ssl/mycerts/*.crt /etc/ssl/mycerts/*.pem
}
function create_cert {
if [ $LETSENCRYPT_HOSTNAME ]; then
add_cert_letsencrypt
else
add_cert_selfsigned
fi
}
read_repo_servers
create_cert
generate_dh_params
restart_web_server
make_cert_bundle
exit 0
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