refactored certs-gen to work with default values when read is not effective

certs-gen.sh

@@ -1,9 +1,17 @@
  
 #!/bin/sh
-
 pwd
-read -p "Enter Server CN (localhost or address): " SRVNAME
-read -p "Enter Client CN (localhost or address): " CLTNAME
+
+# get CNs
+read -p "Enter Server CN (default: localhost): " SRVNAME
+read -p "Enter Client CN (default: localhost): " CLTNAME
+if [ -z "$SRVNAME" ]; then
+    SRVNAME=localhost
+fi
+
+if [ -z "$CLTNAME" ]; then
+    CLTNAME=localhost
+fi
 
 SERVER_CA_CN=jobserv-server-ca
 SERVER_PATH=resources/server
@@ -25,6 +33,16 @@ rm -rf staging
 # Get passwords for CAs
 read -p "Enter Server CA Passphrase: " SRVCAPASS
 read -p "Enter Client CA Passphrase: " CLTCAPASS
+if [ -z "$SRVCAPASS" ]; then
+    SRVCAPASS=$(head /dev/urandom | tr -dc A-Za-z0-9 | head -c 13)
+    echo "[*] Server CA Password is: " $SRVCAPASS
+fi
+
+if [ -z "$CLTCAPASS" ]; then
+    CLTCAPASS=$(head /dev/urandom | tr -dc A-Za-z0-9 | head -c 13)
+    echo "[*] Client CA Password is: " $CLTCAPASS
+fi
+
 # Generate CA Keys
 echo "[+] Generating Server CA Key"
 openssl genrsa -passout pass:$SRVCAPASS -aes256 -out $SERVER_PATH/ca.key 4096