feat(certgen/tls): allow to download cfssl bundles

custom_tls_cert_gen/generate-custom-tls.sh

@@ -2,7 +2,13 @@
 
 set -eu
 
-read -p "Specify the output path: " OUTPUT_PATH
+ERROR_COLOR='\033[0;31m';
+HIGHLIGHT_COLOR='\033[0;32m';
+INPUT_COLOR='\033[0;33m';
+NO_COLOR='\033[0m';
+
+
+read -p "$(echo -e ${INPUT_COLOR}Specify the output path: ${NO_COLOR})" OUTPUT_PATH
 
 if [ -z "$OUTPUT_PATH" ]; then
   OUTPUT_PATH="$(pwd)/output"
@@ -13,26 +19,51 @@ if [ -z "$OUTPUT_PATH" ]; then
 fi
 
 if [[ ! -e "$OUTPUT_PATH" ]]; then 
-  printf "$OUTPUT_PATH doesn't exist" 
+  printf "${ERROR_COLOR}${OUTPUT_PATH} doesn't exist.\n";
   exit;
 fi
 
-read -p "Specify the path where the cfssl and cfssljson are placed: " TOOL_PATH
+read -p "Do you have cfssl installed?(y/n): " is_cfssl_installed
 
-CFSSLEXE=${TOOL_PATH}/cfssl
+CFSSLEXE=${OUTPUT_PATH}/cfssl
-CFSSLJSONEXE=${TOOL_PATH}/cfssljson
+CFSSLJSONEXE=${OUTPUT_PATH}/cfssljson
 
-echo ${CFSSLEXE}
+if [[ "${is_cfssl_installed}" == "y" || "${is_cfssl_installed}" == "Y" ]]; then 
-if [ ! -e "$CFSSLEXE" ]; then
+  read -p "Specify the path where the cfssl and cfssljson are placed: " TOOL_PATH
-    printf "no cfssl found"
+
+  CFSSLEXE=${TOOL_PATH}/cfssl
+  CFSSLJSONEXE=${TOOL_PATH}/cfssljson
+
+  printf "${HIGHLIGHT_COLOR}Your cfssl binary path is ${CFSSLEXE}${NO_COLOR}\n"
+
+  if [ ! -e "$CFSSLEXE" ]; then
+      printf "${ERROR_COLOR}no cfssl found.\n";
+      exit;
+  fi
+
+  if [ ! -e "$CFSSLJSONEXE" ]; then
+      printf "${ERROR_COLOR}no cfssljson found.\n";
+      exit;
+  fi
+
+else
+  # Download the cfssl for users
+  read -p "Specify your platform(darwin/linux/windows): " PLATFORM  
+
+  if [ -Z "$PLATFORM" ]; then 
+    printf "${ERROR_COLOR}Platform must be provided.\n";
     exit;
-fi
+  fi
 
-if [ ! -e "$CFSSLJSONEXE" ]; then
+  printf "${HIGHLIGHT_COLOR}Only amd64 is supported${NO_COLOR}\n"
-    printf "no cfssljson found"
-    exit;
-fi
 
+  wget "https://github.com/cloudflare/cfssl/releases/download/v1.6.1/cfssl_1.6.1_${PLATFORM}_amd64" -O "${OUTPUT_PATH}/cfssl"
+  chmod +x "${OUTPUT_PATH}/cfssl"
+  wget "https://github.com/cloudflare/cfssl/releases/download/v1.6.1/cfssljson_1.6.1_${PLATFORM}_amd64" -O "${OUTPUT_PATH}/cfssljson"
+  chmod +x "${OUTPUT_PATH}/cfssljson"
+
+  printf "${HIGHLIGHT_COLOR}Download the cfssl bundle successfully.${NO_COLOR}\n"
+fi
 
 cd $OUTPUT_PATH
 
@@ -49,7 +80,6 @@ cat <<EOF >> ${CONFIG_CFSSL_JSON}
     }
   }
 }
-
 EOF
 
 read -p "Give a name to the certificate: " CERT_NAME
@@ -58,3 +88,5 @@ read -p "Input the hostname(example.org,127.0.0.1): " CERT_HOSTNAME
 
 echo '{}' | ${CFSSLEXE} gencert -ca=ldap-ca.pem -ca-key=ldap-ca-key.pem -config=${CONFIG_CFSSL_JSON} \
     -hostname="${CERT_HOSTNAME}" - | ${CFSSLJSONEXE} -bare ${CERT_NAME}
+
+printf "${HIGHLIGHT_COLOR}The custom TLS certificates are successfully generated in the path ${OUTPUT_PATH}.${NO_COLOR}\n"