mirror of
https://github.com/pivpn/pivpn.git
synced 2024-10-18 13:43:32 +00:00
263 lines
7.4 KiB
Bash
Executable file
263 lines
7.4 KiB
Bash
Executable file
#!/bin/bash
|
|
# Create OVPN Client
|
|
# Default Variable Declarations
|
|
DEFAULT="Default.txt"
|
|
FILEEXT=".ovpn"
|
|
CRT=".crt"
|
|
KEY=".key"
|
|
CA="ca.crt"
|
|
TA="ta.key"
|
|
INDEX="/etc/openvpn/easy-rsa/pki/index.txt"
|
|
INSTALL_USER=$(cat /etc/pivpn/INSTALL_USER)
|
|
|
|
helpFunc() {
|
|
echo "::: Create a client ovpn profile, optional nopass"
|
|
echo ":::"
|
|
echo "::: Usage: pivpn <-a|add> [-n|--name <arg>] [-p|--password <arg>]|[nopass] [-h|--help]"
|
|
echo ":::"
|
|
echo "::: Commands:"
|
|
echo "::: [none] Interactive mode"
|
|
echo "::: nopass Create a client without a password"
|
|
echo "::: -n,--name Name for the Client (default: '"$(hostname)"')"
|
|
echo "::: -p,--password Password for the Client (no default)"
|
|
echo "::: -h,--help Show this help dialog"
|
|
}
|
|
|
|
# Parse input arguments
|
|
while test $# -gt 0
|
|
do
|
|
_key="$1"
|
|
case "$_key" in
|
|
-n|--name|--name=*)
|
|
_val="${_key##--name=}"
|
|
if test "$_val" = "$_key"
|
|
then
|
|
test $# -lt 2 && echo "Missing value for the optional argument '$_key'." && exit 1
|
|
_val="$2"
|
|
shift
|
|
fi
|
|
NAME="$_val"
|
|
;;
|
|
-p|--password|--password=*)
|
|
_val="${_key##--password=}"
|
|
if test "$_val" = "$_key"
|
|
then
|
|
test $# -lt 2 && echo "Missing value for the optional argument '$_key'." && exit 1
|
|
_val="$2"
|
|
shift
|
|
fi
|
|
PASSWD="$_val"
|
|
;;
|
|
-h|--help)
|
|
helpFunc
|
|
exit 0
|
|
;;
|
|
nopass)
|
|
NO_PASS="1"
|
|
;;
|
|
*)
|
|
echo "Error: Got an unexpected argument '$1'"
|
|
helpFunc
|
|
exit 1
|
|
;;
|
|
esac
|
|
shift
|
|
done
|
|
|
|
# Functions def
|
|
|
|
function keynoPASS() {
|
|
|
|
#Build the client key
|
|
expect << EOF
|
|
set timeout -1
|
|
spawn ./easyrsa build-client-full "${NAME}" nopass
|
|
expect eof
|
|
EOF
|
|
|
|
cd pki || exit
|
|
|
|
}
|
|
|
|
function keyPASS() {
|
|
|
|
if [[ -z "${PASSWD}" ]]; then
|
|
stty -echo
|
|
while true
|
|
do
|
|
printf "Enter the password for the client: "
|
|
read -r PASSWD
|
|
printf "\n"
|
|
printf "Enter the password again to verify: "
|
|
read -r PASSWD2
|
|
printf "\n"
|
|
[ "${PASSWD}" = "${PASSWD2}" ] && break
|
|
printf "Passwords do not match! Please try again.\n"
|
|
done
|
|
stty echo
|
|
if [[ -z "${PASSWD}" ]]; then
|
|
echo "You left the password blank"
|
|
echo "If you don't want a password, please run:"
|
|
echo "pivpn add nopass"
|
|
exit 1
|
|
fi
|
|
fi
|
|
if [ ${#PASSWD} -lt 4 ] || [ ${#PASSWD} -gt 1024 ]
|
|
then
|
|
echo "Password must be between from 4 to 1024 characters"
|
|
exit 1
|
|
fi
|
|
|
|
#Escape chars in PASSWD
|
|
PASSWD=$(echo -n ${PASSWD} | sed -e 's/\\/\\\\/g' -e 's/\//\\\//g' -e 's/\$/\\\$/g' -e 's/!/\\!/g' -e 's/\./\\\./g' -e "s/'/\\\'/g" -e 's/"/\\"/g' -e 's/\*/\\\*/g' -e 's/\@/\\\@/g' -e 's/\#/\\\#/g' -e 's/£/\\£/g' -e 's/%/\\%/g' -e 's/\^/\\\^/g' -e 's/\&/\\\&/g' -e 's/(/\\(/g' -e 's/)/\\)/g' -e 's/-/\\-/g' -e 's/_/\\_/g' -e 's/\+/\\\+/g' -e 's/=/\\=/g' -e 's/\[/\\\[/g' -e 's/\]/\\\]/g' -e 's/;/\\;/g' -e 's/:/\\:/g' -e 's/|/\\|/g' -e 's/</\\</g' -e 's/>/\\>/g' -e 's/,/\\,/g' -e 's/?/\\?/g' -e 's/~/\\~/g' -e 's/{/\\{/g' -e 's/}/\\}/g')
|
|
|
|
#Build the client key and then encrypt the key
|
|
|
|
expect << EOF
|
|
set timeout -1
|
|
spawn ./easyrsa build-client-full "${NAME}"
|
|
expect "Enter PEM pass phrase" { send "${PASSWD}\r" }
|
|
expect "Verifying - Enter PEM pass phrase" { send "${PASSWD}\r" }
|
|
expect eof
|
|
EOF
|
|
|
|
#Convert key to des3
|
|
KEY_FILE="pki/private/${NAME}${KEY}"
|
|
expect << EOF
|
|
set timeout -1
|
|
spawn openssl rsa -in ${KEY_FILE} -des3 -out ${KEY_FILE}
|
|
expect "Enter pass phrase" { send "${PASSWD}\r" }
|
|
expect "Enter PEM pass phrase" { send "${PASSWD}\r" }
|
|
expect "Verifying - Enter PEM pass phrase" { send "${PASSWD}\r" }
|
|
expect eof
|
|
EOF
|
|
|
|
cd pki || exit
|
|
|
|
}
|
|
|
|
if [ -z "${NAME}" ]; then
|
|
printf "Enter a Name for the Client: "
|
|
read -r NAME
|
|
fi
|
|
|
|
if [[ "${NAME}" =~ [^a-zA-Z0-9\-] ]]; then
|
|
echo "Name can only contain alphanumeric characters and dashes (-)."
|
|
exit 1
|
|
fi
|
|
|
|
if [[ -z "${NAME}" ]]; then
|
|
echo "You cannot leave the name blank."
|
|
exit 1
|
|
fi
|
|
|
|
# Check if name is already in use
|
|
while read -r line || [ -n "${line}" ]; do
|
|
STATUS=$(echo "$line" | awk '{print $1}')
|
|
|
|
if [ "${STATUS}" == "V" ]; then
|
|
CERT=$(echo "$line" | sed -e 's:.*/CN=::')
|
|
if [ "${CERT}" == "${NAME}" ]; then
|
|
INUSE="1"
|
|
break
|
|
fi
|
|
fi
|
|
done <${INDEX}
|
|
|
|
if [ "${INUSE}" == "1" ]; then
|
|
printf "\n!! This name is already in use by a Valid Certificate."
|
|
printf "\nPlease choose another name or revoke this certificate first.\n"
|
|
exit 1
|
|
fi
|
|
|
|
# Check if name is reserved
|
|
if [ "${NAME}" == "ta" ] || [ "${NAME}" == "server" ] || [ "${NAME}" == "ca" ]; then
|
|
echo "Sorry, this is in use by the server and cannot be used by clients."
|
|
exit 1
|
|
fi
|
|
|
|
cd /etc/openvpn/easy-rsa || exit
|
|
|
|
if [[ "${NO_PASS}" =~ "1" ]]; then
|
|
if [[ -n "${PASSWD}" ]]; then
|
|
echo "Both nopass and password arguments passed to the script. Please use either one."
|
|
exit 1
|
|
else
|
|
keynoPASS
|
|
fi
|
|
else
|
|
keyPASS
|
|
fi
|
|
|
|
#1st Verify that clients Public Key Exists
|
|
if [ ! -f "issued/${NAME}${CRT}" ]; then
|
|
echo "[ERROR]: Client Public Key Certificate not found: $NAME$CRT"
|
|
exit
|
|
fi
|
|
echo "Client's cert found: $NAME$CRT"
|
|
|
|
#Then, verify that there is a private key for that client
|
|
if [ ! -f "private/${NAME}${KEY}" ]; then
|
|
echo "[ERROR]: Client Private Key not found: $NAME$KEY"
|
|
exit
|
|
fi
|
|
echo "Client's Private Key found: $NAME$KEY"
|
|
|
|
#Confirm the CA public key exists
|
|
if [ ! -f "${CA}" ]; then
|
|
echo "[ERROR]: CA Public Key not found: $CA"
|
|
exit
|
|
fi
|
|
echo "CA public Key found: $CA"
|
|
|
|
#Confirm the tls-auth ta key file exists
|
|
if [ ! -f "${TA}" ]; then
|
|
echo "[ERROR]: tls-auth Key not found: $TA"
|
|
exit
|
|
fi
|
|
echo "tls-auth Private Key found: $TA"
|
|
|
|
#Ready to make a new .ovpn file
|
|
{
|
|
# Start by populating with the default file
|
|
cat "${DEFAULT}"
|
|
|
|
#Now, append the CA Public Cert
|
|
echo "<ca>"
|
|
cat "${CA}"
|
|
echo "</ca>"
|
|
|
|
#Next append the client Public Cert
|
|
echo "<cert>"
|
|
sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' < "issued/${NAME}${CRT}"
|
|
echo "</cert>"
|
|
|
|
#Then, append the client Private Key
|
|
echo "<key>"
|
|
cat "private/${NAME}${KEY}"
|
|
echo "</key>"
|
|
|
|
#Finally, append the TA Private Key
|
|
if [ -f /etc/pivpn/TWO_POINT_FOUR ]; then
|
|
echo "<tls-crypt>"
|
|
cat "${TA}"
|
|
echo "</tls-crypt>"
|
|
else
|
|
echo "<tls-auth>"
|
|
cat "${TA}"
|
|
echo "</tls-auth>"
|
|
fi
|
|
|
|
} > "${NAME}${FILEEXT}"
|
|
|
|
# Copy the .ovpn profile to the home directory for convenient remote access
|
|
cp "/etc/openvpn/easy-rsa/pki/$NAME$FILEEXT" "/home/$INSTALL_USER/ovpns/$NAME$FILEEXT"
|
|
chown "$INSTALL_USER" "/home/$INSTALL_USER/ovpns/$NAME$FILEEXT"
|
|
printf "\n\n"
|
|
printf "========================================================\n"
|
|
printf "\e[1mDone! %s successfully created!\e[0m \n" "$NAME$FILEEXT"
|
|
printf "%s was copied to:\n" "$NAME$FILEEXT"
|
|
printf " /home/%s/ovpns\n" "$INSTALL_USER"
|
|
printf "for easy transfer. Please use this profile only on one\n"
|
|
printf "device and create additional profiles for other devices.\n"
|
|
printf "========================================================\n\n"
|