evoacme: complete refactoring of make-csr.sh
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#!/bin/bash
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#!/bin/sh
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#
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# make-csr is a shell script designed to automatically generate a
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# certificate signing request (CSR) from an Apache or a Nginx vhost
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#
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# Author: Victor Laborie <vlaborie@evolix.fr>
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# Licence: AGPLv3
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#
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[ -f /etc/default/evoacme ] && source /etc/default/evoacme
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[ -z "${SSL_KEY_DIR}" ] && SSL_KEY_DIR='/etc/ssl/private'
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[ -z "${CSR_DIR}" ] && CSR_DIR='/etc/ssl/requests'
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[ -z "${SELF_SIGNED_DIR}" ] && SELF_SIGNED_DIR='/etc/ssl/self-signed'
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shopt -s extglob
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vhost=$(basename $1 .conf)
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vhostfiles=$(ls -1 /etc/{nginx,apache2}/sites-enabled/${vhost}?(.conf) 2>/dev/null)
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if [ $(echo "${vhostfiles}"|wc -l) -lt 1 ]; then
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echo "$vhost doesn't exist !"
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exit 1
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fi
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for vhostfile in "${vhostfiles}"; do
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break;
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done
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if [ -f $SSL_KEY_DIR/${vhost}.key ]; then
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read -p "$vhost key already exist, overwrite it ? (y)" -n 1 -r
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echo ""
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if [[ ! $REPLY =~ ^[Yy]$ ]]; then
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exit 1
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get_domains() {
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echo "$vhostfile"|grep -q nginx
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if [ "$?" -eq 0 ]; then
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domains=$(grep -oE "^( )*[^#]+" "$vhostfile" |grep -oE "[^\$]server_name.*;$"|sed 's/server_name//'|tr -d ';'|sed 's/\s\{1,\}//'|sed 's/\s\{1,\}/\n/g'|sort|uniq)
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fi
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rm -f /etc/apache2/ssl/${vhost}.conf
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rm -f /etc/nginx/ssl/${vhost}.conf
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fi
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SSL_KEY_SIZE=$(grep default_bits /etc/letsencrypt/openssl.cnf|cut -d'=' -f2|xargs)
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openssl genrsa -out $SSL_KEY_DIR/${vhost}.key $SSL_KEY_SIZE
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chown root: $SSL_KEY_DIR/${vhost}.key
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chmod 600 $SSL_KEY_DIR/${vhost}.key
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nb=0
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echo $vhostfile |grep -q nginx
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if [ $? -eq 0 ]; then
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domains=`grep -oE "^( )*[^#]+" $vhostfile |grep -oE "[^\$]server_name.*;$"|sed 's/server_name//'|tr -d ';'|sed 's/\s\{1,\}//'|sed 's/\s\{1,\}/\n/g'|sort|uniq`
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fi
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echo $vhostfile |grep -q apache2
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if [ $? -eq 0 ]; then
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domains=`grep -oE "^( )*[^#]+" $vhostfile |grep -oE "(ServerName|ServerAlias).*"|sed 's/ServerName//'|sed 's/ServerAlias//'|sed 's/\s\{1,\}//'|sort|uniq`
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fi
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valid_domains=''
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srv_ip=$(ip a|grep brd|cut -d'/' -f1|grep -oE "([0-9]+\.){3}[0-9]+")
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echo "Valid Domain(s) for $vhost :"
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for domain in $domains
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do
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real_ip=$(dig +short $domain|grep -oE "([0-9]+\.){3}[0-9]+")
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for ip in $(echo $srv_ip|xargs -n1); do
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if [ "${ip}" == "${real_ip}" ]; then
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valid_domains="$valid_domains $domain"
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nb=$(( nb + 1 ))
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echo "- $domain"
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fi
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done
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done
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if [ $nb -eq 0 ]; then
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nb=`echo $domains|wc -l`
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echo "No valid domains : $domains" >&2
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else
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domains=$valid_domains
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fi
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mkdir -p $CSR_DIR -m 0755
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if [ $nb -eq 1 ]; then
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openssl req -new -sha256 -key $SSL_KEY_DIR/${vhost}.key -config <(cat /etc/letsencrypt/openssl.cnf <(printf "CN=$domains")) -out $CSR_DIR/${vhost}.csr
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elif [ $nb -gt 1 ]; then
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san=''
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echo "$vhostfile" |grep -q apache2
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if [ "$?" -eq 0 ]; then
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domains=$(grep -oE "^( )*[^#]+" "$vhostfile" |grep -oE "(ServerName|ServerAlias).*"|sed 's/ServerName//'|sed 's/ServerAlias//'|sed 's/\s\{1,\}//'|sort|uniq)
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fi
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valid_domains=""
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nb=0
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echo "Valid Domain(s) for $vhost :"
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for domain in $domains
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do
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san="$san,DNS:$domain"
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real_ip=$(dig +short "$domain"|grep -oE "([0-9]+\.){3}[0-9]+")
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for ip in $(echo "$SRV_IP"|xargs -n1); do
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if [ "${ip}" = "${real_ip}" ]; then
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valid_domains="$valid_domains $domain"
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nb=$(( nb + 1 ))
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echo "* $domain"
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fi
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done
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done
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san=`echo $san|sed 's/,//'`
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openssl req -new -sha256 -key $SSL_KEY_DIR/${vhost}.key -reqexts SAN -config <(cat /etc/letsencrypt/openssl.cnf <(printf "[SAN]\nsubjectAltName=$san")) > $CSR_DIR/${vhost}.csr
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fi
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if [ -f $CSR_DIR/${vhost}.csr ]; then
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chmod 644 $CSR_DIR/${vhost}.csr
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mkdir -p $SELF_SIGNED_DIR -m 0755
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openssl x509 -req -sha256 -days 365 -in $CSR_DIR/${vhost}.csr -signkey $SSL_KEY_DIR/${vhost}.key -out $SELF_SIGNED_DIR/${vhost}.pem
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if [ -f $SELF_SIGNED_DIR/${vhost}.pem ]; then
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chmod 644 $SELF_SIGNED_DIR/${vhost}.pem
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if [ "$nb" -eq 0 ]; then
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nb=$(echo "$domains"|wc -l)
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echo "No valid domains : $domains" >&2
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domains="$domains"
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else
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domains="$valid_domains"
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fi
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fi
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domains=$(echo "$domains"|xargs -n1)
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}
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if [ -d /etc/apache2 ]; then
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make_key() {
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openssl genrsa -out "$SSL_KEY_DIR/${vhost}.key" "$SSL_KEY_SIZE" 2>/dev/null
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chown root: "$SSL_KEY_DIR/${vhost}.key"
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chmod 600 "$SSL_KEY_DIR/${vhost}.key"
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}
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make_csr() {
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domains="$1"
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nb=$(echo "$domains"|wc -l)
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config_file="/tmp/make-csr-${vhost}.conf"
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mkdir -p "$CSR_DIR" -m 0755
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if [ "$nb" -eq 1 ]; then
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cat /etc/letsencrypt/openssl.cnf - > "$config_file" <<EOF
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CN=$domains
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EOF
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openssl req -new -sha256 -key "$SSL_KEY_DIR/${vhost}.key" -config "$config_file" -out "$CSR_DIR/${vhost}.csr"
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elif [ "$nb" -gt 1 ]; then
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san=''
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for domain in $domains
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do
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san="$san,DNS:$domain"
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done
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san=$(echo "$san"|sed 's/,//')
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cat /etc/letsencrypt/openssl.cnf - > "$config_file" <<EOF
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[SAN]
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subjectAltName=$san
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EOF
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openssl req -new -sha256 -key "$SSL_KEY_DIR/${vhost}.key" -reqexts SAN -config "$config_file" > "$CSR_DIR/${vhost}.csr"
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fi
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if [ -f "$CSR_DIR/${vhost}.csr" ]; then
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chmod 644 "$CSR_DIR/${vhost}.csr"
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mkdir -p "$SELF_SIGNED_DIR" -m 0755
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openssl x509 -req -sha256 -days 365 -in "$CSR_DIR/${vhost}.csr" -signkey "$SSL_KEY_DIR/${vhost}.key" -out "$SELF_SIGNED_DIR/${vhost}.pem"
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[ -f "$SELF_SIGNED_DIR/${vhost}.pem" ] && chmod 644 "$SELF_SIGNED_DIR/${vhost}.pem"
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fi
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}
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mkconf_apache() {
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mkdir -p /etc/apache2/ssl
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if [ ! -f /etc/apache2/ssl/${vhost}.conf ]; then
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cat > /etc/apache2/ssl/${vhost}.conf <<EOF
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if [ ! -f "/etc/apache2/ssl/${vhost}.conf" ]; then
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cat > "/etc/apache2/ssl/${vhost}.conf" <<EOF
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SSLEngine On
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SSLCertificateFile $SELF_SIGNED_DIR/${vhost}.pem
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SSLCertificateKeyFile $SSL_KEY_DIR/${vhost}.key
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EOF
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else
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sed -i "s~^SSLCertificateFile.*$~SSLCertificateFile $SELF_SIGNED_DIR/${vhost}.pem~" "/etc/apache2/ssl/${vhost}.conf"
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fi
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fi
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}
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if [ -d /etc/nginx ]; then
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mkconf_nginx() {
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mkdir -p /etc/nginx/ssl
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if [ ! -f /etc/nginx/ssl/${vhost}.conf ]; then
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cat > /etc/nginx/ssl/${vhost}.conf <<EOF
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if [ ! -f "/etc/nginx/ssl/${vhost}.conf" ]; then
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"cat > /etc/nginx/ssl/${vhost}.conf" <<EOF
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ssl_certificate $SELF_SIGNED_DIR/${vhost}.pem;
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ssl_certificate_key $SSL_KEY_DIR/${vhost}.key;
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EOF
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else
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sed -i "s~^ssl_certificate[^_].*$~ssl_certificate $SELF_SIGNED_DIR/${vhost}.pem;~" "/etc/nginx/ssl/${vhost}.conf"
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fi
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fi
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}
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main() {
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if [ "$#" -ne 1 ]; then
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echo "You need to provide one argument !" >&2
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exit 1
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fi
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vhost=$(basename "$1" .conf)
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local_ip=$(ip a|grep brd|cut -d'/' -f1|grep -oE "([0-9]+\.){3}[0-9]+")
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[ -f /etc/default/evoacme ] && . /etc/default/evoacme
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[ -z "${SSL_KEY_DIR}" ] && SSL_KEY_DIR='/etc/ssl/private'
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[ -z "${CSR_DIR}" ] && CSR_DIR='/etc/ssl/requests'
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[ -z "${CRT_DIR}" ] && CRT_DIR='/etc/letsencrypt'
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[ -z "${SELF_SIGNED_DIR}" ] && SELF_SIGNED_DIR='/etc/ssl/self-signed'
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SSL_KEY_SIZE=$(grep default_bits /etc/letsencrypt/openssl.cnf|cut -d'=' -f2|xargs)
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[ -n "${SRV_IP}" ] && SRV_IP="${SRV_IP} local_ip" || SRV_IP="$local_ip"
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vhostfile=$(ls "/etc/nginx/sites-enabled/${vhost}" "/etc/nginx/sites-enabled/${vhost}.conf" "/etc/apache2/sites-enabled/${vhost}" "/etc/apache2/sites-enabled/${vhost}.conf" 2>/dev/null|head -n1)
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if [ ! -h "$vhostfile" ]; then
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echo "$vhost is not a valid virtualhost !" >&2
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exit 1
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fi
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if [ -f "$SSL_KEY_DIR/${vhost}.key" ]; then
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echo "$vhost key already exist, overwrite it ? (y)"
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read REPLY
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[ "$REPLY" = "Y" ] || [ "$REPLY" = "y" ] || exit 0
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rm -f "/etc/apache2/ssl/${vhost}.conf /etc/nginx/ssl/${vhost}.conf"
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[ -h "${CRT_DIR}/${vhost}/live" ] && rm "${CRT_DIR}/${vhost}/live"
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fi
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get_domains
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make_key
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make_csr "$domains"
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which apache2ctl >/dev/null && mkconf_apache
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which nginx >/dev/null && mkconf_nginx
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}
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main "$@"
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