irc uses default domain certificate

src/freedombone-app-irc

         exit 53
     fi
 
-    if [ ! -f /etc/ssl/certs/ngircd.dhparam ]; then
+    # obtain a cert for the default domain
+    if [[ $(cert_exists ${DEFAULT_DOMAIN_NAME} pem) == "0" ]]; then
+        echo $'Obtaining certificate for the main domain'
+        create_site_certificate ${DEFAULT_DOMAIN_NAME} 'yes'
+    fi
+
+    if [[ $(cert_exists ${DEFAULT_DOMAIN_NAME}) == "0" ]]; then
         ${PROJECT_NAME}-addcert -h ngircd --dhkey ${DH_KEYLENGTH}
         function_check check_certificates
         check_certificates ngircd
     sed -i "s/irc.example.net/$DEFAULTDOMAIN/g" /etc/ngircd/ngircd.conf
     sed -i "s|Yet another IRC Server running on Debian GNU/Linux|IRC Server of $DEFAULTDOMAIN|g" /etc/ngircd/ngircd.conf
     sed -i 's/;Password = wealllikedebian/Password =/g' /etc/ngircd/ngircd.conf
-    sed -i 's|;CertFile = /etc/ssl/certs/server.crt|CertFile = /etc/ssl/certs/ngircd.crt|g' /etc/ngircd/ngircd.conf
-    sed -i 's|;DHFile = /etc/ngircd/dhparams.pem|DHFile = /etc/ssl/certs/ngircd.dhparam|g' /etc/ngircd/ngircd.conf
-    sed -i 's|;KeyFile = /etc/ssl/private/server.key|KeyFile = /etc/ssl/private/ngircd.key|g' /etc/ngircd/ngircd.conf
+    if [ -f /etc/ssl/certs/${DEFAULT_DOMAIN_NAME}.pem ]; then
+        sed -i "s|;CertFile = /etc/ssl/certs/server.crt|CertFile = /etc/ssl/certs/${DEFAULT_DOMAIN_NAME}.pem|g" /etc/ngircd/ngircd.conf
+    else
+        sed -i "s|;CertFile = /etc/ssl/certs/server.crt|CertFile = /etc/ssl/certs/${DEFAULT_DOMAIN_NAME}.crt|g" /etc/ngircd/ngircd.conf
+    fi
+    sed -i "s|;DHFile = /etc/ngircd/dhparams.pem|DHFile = /etc/ssl/certs/${DEFAULT_DOMAIN_NAME}.dhparam|g" /etc/ngircd/ngircd.conf
+    sed -i "s|;KeyFile = /etc/ssl/private/server.key|KeyFile = /etc/ssl/private/${DEFAULT_DOMAIN_NAME}.key|g" /etc/ngircd/ngircd.conf
     sed -i "s/;Ports =.*/Ports = ${IRC_PORT}/1" /etc/ngircd/ngircd.conf
     sed -i "s/;Ports =.*/Ports = ${IRC_PORT}/2" /etc/ngircd/ngircd.conf
     sed -i "s/;Name = #ngircd/Name = #${PROJECT_NAME}/g" /etc/ngircd/ngircd.conf