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Double BASH brackets to simple SH brackets

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This commit is contained in:
Julien Reichardt 2016-04-17 00:18:26 +02:00
parent 2bcb4681a1
commit 5684772d5e
1 changed files with 25 additions and 25 deletions
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36
openvpn-install.sh
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@ -8,13 +8,13 @@
# universal as possible.
if [[ "$EUID" -ne 0 ]]; then
if [ "$EUID" -ne 0 ]; then
echo "Sorry, you need to run this as root"
exit 1
fi
if [[ ! -e /dev/net/tun ]]; then
if [ ! -e /dev/net/tun ]; then
echo "TUN is not available"
exit 2
fi
@ -25,10 +25,10 @@ if grep -qs "CentOS release 5" "/etc/redhat-release"; then
exit 3
fi
if [[ -e /etc/debian_version ]]; then
if [ -e /etc/debian_version ]; then
OS=debian
RCLOCAL='/etc/rc.local'
elif [[ -e /etc/centos-release || -e /etc/redhat-release ]]; then
elif [ -e /etc/centos-release ] || [ -e /etc/redhat-release ]; then
OS=centos
RCLOCAL='/etc/rc.d/rc.local'
# Needed for CentOS 7
@ -57,12 +57,12 @@ newclient () {
# I do this to make the script compatible with NATed servers (lowendspirit.com)
# and to avoid getting an IPv6.
IP=$(ip addr | grep 'inet' | grep -v inet6 | grep -vE '127\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | grep -o -E '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}' | head -1)
if [[ "$IP" = "" ]]; then
if [ "$IP" = "" ]; then
IP=$(wget -qO- ipv4.icanhazip.com)
fi
if [[ -e /etc/openvpn/server.conf ]]; then
if [ -e /etc/openvpn/server.conf ]; then
while :
do
clear
@ -92,7 +92,7 @@ if [[ -e /etc/openvpn/server.conf ]]; then
# This option could be documented a bit better and maybe even be simplimplified
# ...but what can I say, I want some sleep too
NUMBEROFCLIENTS=$(tail -n +2 /etc/openvpn/easy-rsa/pki/index.txt | grep -c "^V")
if [[ "$NUMBEROFCLIENTS" = '0' ]]; then
if [ "$NUMBEROFCLIENTS" = '0' ]; then
echo ""
echo "You have no existing clients!"
exit 5
@ -100,7 +100,7 @@ if [[ -e /etc/openvpn/server.conf ]]; then
echo ""
echo "Select the existing client certificate you want to revoke"
tail -n +2 /etc/openvpn/easy-rsa/pki/index.txt | grep "^V" | cut -d '=' -f 2 | nl -s ') '
if [[ "$NUMBEROFCLIENTS" = '1' ]]; then
if [ "$NUMBEROFCLIENTS" = '1' ]; then
read -p "Select one client [1]: " CLIENTNUMBER
else
read -p "Select one client [1-$NUMBEROFCLIENTS]: " CLIENTNUMBER
@ -121,7 +121,7 @@ if [[ -e /etc/openvpn/server.conf ]]; then
3)
echo ""
read -p "Do you really want to remove OpenVPN? [y/n]: " -e -i n REMOVE
if [[ "$REMOVE" = 'y' ]]; then
if [ "$REMOVE" = 'y' ]; then
PORT=$(grep '^port ' /etc/openvpn/server.conf | cut -d " " -f 2)
if pgrep firewalld; then
# Using both permanent and not permanent rules to avoid a firewalld reload.
@ -138,12 +138,12 @@ if [[ -e /etc/openvpn/server.conf ]]; then
sed -i '/iptables -t nat -A POSTROUTING -s 10.8.0.0\/24 -j SNAT --to /d' $RCLOCAL
if hash sestatus 2>/dev/null; then
if sestatus | grep "Current mode" | grep -qs "enforcing"; then
if [[ "$PORT" != '1194' ]]; then
if [ "$PORT" != '1194' ]; then
semanage port -d -t openvpn_port_t -p udp $PORT
fi
fi
fi
if [[ "$OS" = 'debian' ]]; then
if [ "$OS" = 'debian' ]; then
apt-get remove --purge -y openvpn openvpn-blacklist
else
yum remove openvpn -y
@ -191,7 +191,7 @@ else
echo ""
echo "Okay, that was all I needed. We are ready to setup your OpenVPN server now"
read -n1 -r -p "Press any key to continue..."
if [[ "$OS" = 'debian' ]]; then
if [ "$OS" = 'debian' ]; then
apt-get update
apt-get install openvpn iptables openssl ca-certificates -y
else
@ -200,7 +200,7 @@ else
yum install openvpn iptables openssl wget ca-certificates -y
fi
# An old version of easy-rsa was available by default in some openvpn packages
if [[ -d /etc/openvpn/easy-rsa/ ]]; then
if [ -d /etc/openvpn/easy-rsa/ ]; then
rm -rf /etc/openvpn/easy-rsa/
fi
# Get easy-rsa
@ -270,7 +270,7 @@ status openvpn-status.log
verb 3
crl-verify crl.pem" >> /etc/openvpn/server.conf
# Enable net.ipv4.ip_forward for the system
if [[ "$OS" = 'debian' ]]; then
if [ "$OS" = 'debian' ]; then
sed -i 's|#net.ipv4.ip_forward=1|net.ipv4.ip_forward=1|' /etc/sysctl.conf
else
# CentOS 5 and 6
@ -308,7 +308,7 @@ crl-verify crl.pem" >> /etc/openvpn/server.conf
# If SELinux is enabled and a custom port was selected, we need this
if hash sestatus 2>/dev/null; then
if sestatus | grep "Current mode" | grep -qs "enforcing"; then
if [[ "$PORT" != '1194' ]]; then
if [ "$PORT" != '1194' ]; then
# semanage isn't available in CentOS 6 by default
if ! hash semanage 2>/dev/null; then
yum install policycoreutils-python -y
@ -318,7 +318,7 @@ crl-verify crl.pem" >> /etc/openvpn/server.conf
fi
fi
# And finally, restart OpenVPN
if [[ "$OS" = 'debian' ]]; then
if [ "$OS" = 'debian' ]; then
# Little hack to check for systemd
if pgrep systemd-journal; then
systemctl restart openvpn@server.service
@ -336,14 +336,14 @@ crl-verify crl.pem" >> /etc/openvpn/server.conf
fi
# Try to detect a NATed connection and ask about it to potential LowEndSpirit users
EXTERNALIP=$(wget -qO- ipv4.icanhazip.com)
if [[ "$IP" != "$EXTERNALIP" ]]; then
if [ "$IP" != "$EXTERNALIP" ]; then
echo ""
echo "Looks like your server is behind a NAT!"
echo ""
echo "If your server is NATed (e.g. LowEndSpirit), I need to know the external IP"
echo "If that's not the case, just ignore this and leave the next field blank"
read -p "External IP: " -e USEREXTERNALIP
if [[ "$USEREXTERNALIP" != "" ]]; then
if [ "$USEREXTERNALIP" != "" ]; then
IP=$USEREXTERNALIP
fi
fi