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Ocserv-Installer.sh
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Ocserv-Installer.sh
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#!/bin/bash
# Secure OpenConnect server installer for Ubuntu 18.04 or higher.
# https://github.com/B-andi-T
RED='\e[0;31m'
YELLOW='\e[0;33m'
GREEN='\e[0;32m'
BOLDGREEN="\e[1;32m"
CYAN='\e[0;36m'
EC='\e[0m'
DEFUSER=user
PORT=443
PDNS=8.8.8.8
SDNS=4.2.2.4
ocservConfig=/etc/ocserv/ocserv.conf
NET_INTER=$(ip r | head -1 | cut -d" " -f5)
serverlist=$(stat -c %n /lib/systemd/system/ocserv*.service | wc -l)
serverlist_names=$(for file in /lib/systemd/system/ocserv*.service; do basename "$file"; done | awk -F. '{print $1}')
findCert=$(find /etc/letsencrypt/live/ -type d -name $DOMAIN)
clear
function isRoot() {
if ! [ $(id -u) -eq 0 ]; then
echo "You need to run this script as root"
exit 1
fi
}
function checkOS() {
# Check OS version
if [[ -f /etc/os-release ]]; then
source /etc/os-release
testvercomp $VERSION_ID "18.04" "<"
echo "OS : $ID"
echo "OS Version : $VERSION"
if [[ $ID != "ubuntu" ]]; then
echo -e "Your OS does not supported for using this script. Only Ubuntu 18.04 or higher is supported."
exit
fi
if [[ $VERID -eq 0 ]]; then
OS=$ID
# On Ubuntu systems
echo -e "Your version of Ubuntu ($VERSION_ID) is not supported by this script. Please upgrade your Ubuntu version to 18.04 or higher."
exit
fi
else
echo -e "Your OS does not supported for using this script. Only Ubuntu 18.04 or higher is supported."
exit
fi
Questions
}
vercomp() {
if [[ $1 == $2 ]]; then
return 0
fi
local IFS=.
local i ver1=($1) ver2=($2)
# fill empty fields in ver1 with zeros
for ((i = ${#ver1[@]}; i < ${#ver2[@]}; i++)); do
ver1[i]=0
done
for ((i = 0; i < ${#ver1[@]}; i++)); do
if [[ -z ${ver2[i]} ]]; then
# fill empty fields in ver2 with zeros
ver2[i]=0
fi
if ((10#${ver1[i]} > 10#${ver2[i]})); then
return 1
fi
if ((10#${ver1[i]} < 10#${ver2[i]})); then
return 2
fi
done
return 0
}
testvercomp() {
vercomp $1 $2
case $? in
0) op='=' ;;
1) op='>' ;;
2) op='<' ;;
esac
if [[ $op != $3 ]]; then
VERID=1
else
VERID=0
fi
}
# OCServ Questions before install
function Questions() {
echo -e "\n OOOOO CCCCC SSSSS EEEEEEE RRRRRR VV VV\n OO OO CC SS EE RR RR VV VV\n OO OO CC SSSSS EEEEE RRRRRR VV VV \n OO OO CC SS EE RR RR VV VV \n OOOO0 CCCCC SSSSS EEEEEEE RR RR VVV "
echo "######################################################################################"
echo "#Script Name : Secure OpenConnect+LetsEncrypt server installer for Ubuntu 18.04 and later."
echo "#Description : With this script you can start your Openconnect+LetsEncrypt server in less than a minute"
echo "#Author : B-andi-T"
echo "#Github : https://github.com/B-andi-T"
echo "######################################################################################"
echo -e "\n${CYAN}Welcome to Openconnect+LetsEncrypt Installer for ubuntu 18.04 and later${EC}\n"
echo "###/N/###/O/###/T/###/E/###"
echo -e "\nPlease note
* This script has been tested on ${GREEN}Ubuntu 18.04, 20.04 and 22.04.${EC}"
echo -e " * you need a ${RED}domain${EC} to set up the server. If you don't have one, buy one first before using this script.\n"
echo "###\N\###\O\###\T\###\E\###"
echo -ne "\nNow if all the prerequisites are ready, you need to answer a few simple questions:\n"
echo -e "${RED}**Please answer the all questions correctly**${EC}"
# Questions
# Detect Network Interface
read -rp "Network Interface (leave it unchanged unless you know what you are doing): " -e -i "$NET_INTER"
# Email
if email_validator $email; then
EMAIL=$email
fi
# Username
echo -n "Please enter your username (default is 'user') : "
read userName
if [[ -n "$userName" ]]; then
DEFUSER=$userName
fi
# Password
if pass_validator $password; then
PASS=$password
fi
# Port
newPortnumber $newPort
PORT=$newPort
# Max Same Client
until [[ $maxSameClient =~ ^[0-9]+$ ]]; do
read -rp "The number of devices that can be used by a user at the same time (Default is 2)(0 is unlimited): " -e -i 2 maxSameClient
done
# Primary DNS
while true; do
echo -n "Primary DNS (default is 8.8.8.8): "
read primaryDns
if [[ -z $primaryDns ]]; then
primaryDns=$PDNS
echo -e "${YELLOW}Primary DNS will be set to $primaryDns${EC}"
break
else
if valid_ip $primaryDns; then
stat='will be used as your Primary DNS'
echo -e "$primaryDns" "${GREEN}$stat${EC}"
break
else
stat='is not a valid IP address.'
echo -e "$primaryDns" "${RED}$stat${EC}"
fi
fi
done
# Secondary DNS
while true; do
echo -n "Secondary DNS (Optional): "
read secDns
if [[ -z "$secDns" ]]; then
secDns=$SDNS
echo -e "${YELLOW}Secondary DNS will be set to $secDns${EC}"
break
else
if valid_ip $secDns; then
stat='will be used as your Secondary DNS'
echo -e "$secDns" "${GREEN}$stat${EC}"
SDNS=$secDns
break
else
stat='is not a valid IP address.'
echo -e "$secDns" "${RED}$stat${EC}"
fi
fi
done
# Check Apache
echo "/./././././././././././././././././././././././././"
echo -e "Checking if ${CYAN}Apache${EC} is installed on this machine..."
sleep 2
if command -v apache2 >/dev/null; then
if (systemctl -q is-active apache2); then
echo -e "${RED}ATTENTION!${EC}"
echo -e "It seems ${CYAN}Apache${EC} is already installed on your server"
echo -e "Since LetsEncrypt needs port 80 to obtain the certificate and Apache is already using port 80, you can obtain the certificate through Apache.
If you want the certificate to be created with 'Standalone Plugin', you can choose 'n' so that Apache will be stoped during installation and re-started after the script is finished processing."
apaChe
else
echo -e "It seems ${CYAN}Apache${EC} is installed on this machine but it's inactive. If you want to use apache for obtain the Certificate, you can activate it."
local CONTINUE=""
until [[ $CONTINUE =~ (y|n) ]]; do
read -rp "Do you want to enable apache2 service? [y/n]:" -e CONTINUE
done
if [[ $CONTINUE == y ]]; then
systemctl start apache2
apaChe
else
if newDomain $domainInput; then
DOMAIN=$domainInput
fi
fi
fi
else
echo -e "${CYAN}Apache Not Found${EC}"
echo "/./././././././././././././././././././././././././"
fi
# Check Nginx
echo -e "Checking if ${CYAN}Nginx${EC} is installed on this machine..."
sleep 2
if command -v nginx >/dev/null; then
if (systemctl -q is-active nginx); then
echo -e "${RED}ATTENTION!${EC}"
echo -e "It seems ${CYAN}Nginx${EC} is already installed on your server"
echo -e "Since LetsEncrypt needs port 80 to obtain the certificate and Nginx is already using port 80, you can obtain the certificate through Nginx.
If you want the certificate to be created with 'Standalone Plugin', you can choose 'n' so that Nginx will be stoped during installation and re-started after the script is finished processing."
nginX
else
echo -e "It seems ${CYAN}Nginx${EC} is installed on this machine but it's inactive. If you want to use Nginx for obtain the Certificate, you can activate it."
local CONTINUE=""
until [[ $CONTINUE =~ (y|n) ]]; do
read -rp "Do you want to enable Nginx service? [y/n]:" -e CONTINUE
done
if [[ $CONTINUE == y ]]; then
systemctl start nginx
nginX
else
if newDomain $domainInput; then
DOMAIN=$domainInput
fi
fi
fi
else
echo -e "${CYAN}Nginx Not Found${EC}"
echo "/./././././././././././././././././././././././././"
fi
if ! command -v apache2 >/dev/null && ! command -v nginx >/dev/null; then
if newDomain $domainInput; then
DOMAIN=$domainInput
fi
fi
# End of questions and confirmation to continue
echo -e "\nAll questions answered. Now it's time to install. Do you wish to continue?"
select yn in "Yes" "No"; do
case $yn in
Yes)
OCSERV_INSTALL
break
;;
No) exit ;;
esac
done
}
function OCSERV_INSTALL() {
# Installation and configuration
# OS UPDATE & UPGRADE
echo -e "${GREEN}Running apt update...${EC} "
spin &
pid=$!
apt-get update &>/dev/null
echo -e "\nDONE\n"
kill $pid >/dev/null 2>&1
echo -e "${GREEN}Running apt upgrade...${EC} "
apt-get upgrade -y
echo -e "${GREEN}DONE${EC}"
# Install OCServ and Certbot
echo -e "${GREEN}Installing OCServ...${EC}"
apt-get install -y ocserv
echo -e "${GREEN}DONE${EC}"
echo -e "${GREEN}Installing Certbot...${EC}"
apt-get install -y certbot
echo -e "${GREEN}DONE${EC}"
# Getting TLS certificate from Let's Encrypt
echo -e "${GREEN}Getting TLS certificate from LetsEncrypt...${EC}"
# Using standAlone plugin if Apache and Nginx are not active
if [[ $(ps -acx | grep nginx | wc -l) == 0 ]] && [[ $(ps -acx | grep apache | wc -l) == 0 ]]; then
if [ $findCert ]; then
echo "1" | certbot certonly --standalone --preferred-challenges http --agree-tos --email ${EMAIL} -d ${DOMAIN}
else
echo "n" | certbot certonly --standalone --preferred-challenges http --agree-tos --email ${EMAIL} -d ${DOMAIN}
fi
sed -i "s/server-cert = \/etc\/ssl\/certs\/ssl-cert-snakeoil.pem/server-cert = \/etc\/letsencrypt\/live\/${DOMAIN}\/fullchain.pem/" $ocservConfig
sed -i "s/server-key = \/etc\/ssl\/private\/ssl-cert-snakeoil.key/server-key = \/etc\/letsencrypt\/live\/${DOMAIN}\/privkey.pem/" $ocservConfig
fi
# Use Webroot plugin for certificate (Apache)
if [[ $USE_APACHE == y ]]; then
if [[ $HAVE_DOMAIN == y ]]; then
if [[ $CERT_EXIST == n ]]; then
SAVAILABLE=$(grep "ServerName $DOMAIN" "/etc/apache2/sites-available/$DOMAIN.conf")
if ! [[ -z $SAVAILABLE ]] && [[ -d /var/www/$DOMAIN ]]; then
a2ensite $DOMAIN
systemctl reload apache2
echo "n" | certbot certonly --webroot --agree-tos --email ${EMAIL} -d ${DOMAIN} -w /var/www/$DOMAIN
sed -i "s/server-cert = \/etc\/ssl\/certs\/ssl-cert-snakeoil.pem/server-cert = \/etc\/letsencrypt\/live\/${DOMAIN}\/fullchain.pem/" $ocservConfig
sed -i "s/server-key = \/etc\/ssl\/private\/ssl-cert-snakeoil.key/server-key = \/etc\/letsencrypt\/live\/${DOMAIN}\/privkey.pem/" $ocservConfig
else
touch /etc/apache2/sites-available/$DOMAIN.conf
echo "<VirtualHost *:80>
ServerName $DOMAIN
DocumentRoot /var/www/ocserv
</VirtualHost>" >>/etc/apache2/sites-available/$DOMAIN.conf
mkdir /var/www/ocserv
chown www-data:www-data /var/www/ocserv -R
a2ensite $DOMAIN
systemctl reload apache2
certbot certonly --webroot --agree-tos --email ${EMAIL} -d ${DOMAIN} -w /var/www/ocserv
fi
else
sed -i "/server-cert =/c\server-cert = ${CERTPATH//\//\\/}" $ocservConfig
sed -i "/server-key =/c\server-key = ${KEYPATH//\//\\/}" $ocservConfig
fi
else
touch /etc/apache2/sites-available/$DOMAIN.conf
echo "<VirtualHost *:80>
ServerName $DOMAIN
DocumentRoot /var/www/ocserv
</VirtualHost>" >>/etc/apache2/sites-available/$DOMAIN.conf
mkdir /var/www/ocserv
chown www-data:www-data /var/www/ocserv -R
a2ensite $DOMAIN
systemctl reload apache2
certbot certonly --webroot --agree-tos --email ${EMAIL} -d ${DOMAIN} -w /var/www/ocserv
sed -i "s/server-cert = \/etc\/ssl\/certs\/ssl-cert-snakeoil.pem/server-cert = \/etc\/letsencrypt\/live\/${DOMAIN}\/fullchain.pem/" $ocservConfig
sed -i "s/server-key = \/etc\/ssl\/private\/ssl-cert-snakeoil.key/server-key = \/etc\/letsencrypt\/live\/${DOMAIN}\/privkey.pem/" $ocservConfig
fi
else
if (systemctl is-active --quiet apache2); then
echo -e "${GREEN}Stopping the Apache service...${EC}"
systemctl stop apache2
sleep 2
if [ $findCert ]; then
echo "1" | certbot certonly --standalone --preferred-challenges http --agree-tos --email ${EMAIL} -d ${DOMAIN}
else
echo "n" | certbot certonly --standalone --preferred-challenges http --agree-tos --email ${EMAIL} -d ${DOMAIN}
fi
sed -i "s/server-cert = \/etc\/ssl\/certs\/ssl-cert-snakeoil.pem/server-cert = \/etc\/letsencrypt\/live\/${DOMAIN}\/fullchain.pem/" $ocservConfig
sed -i "s/server-key = \/etc\/ssl\/private\/ssl-cert-snakeoil.key/server-key = \/etc\/letsencrypt\/live\/${DOMAIN}\/privkey.pem/" $ocservConfig
fi
fi
# Use Webroot plugin for certificate (Nginx)
if [[ $USE_NGINX == y ]]; then
if [[ $HAVE_DOMAIN == y ]]; then
if [[ $CERT_EXIST == n ]]; then
SAVAILABLE=$(grep "server_name $DOMAIN" "/etc/nginx/conf.d/$DOMAIN.conf")
if ! [[ -z $SAVAILABLE ]] && [[ -d /var/www/$DOMAIN ]]; then
echo "n" | certbot certonly --webroot --agree-tos --email ${EMAIL} -d ${DOMAIN} -w /var/www/$DOMAIN
sed -i "s/server-cert = \/etc\/ssl\/certs\/ssl-cert-snakeoil.pem/server-cert = \/etc\/letsencrypt\/live\/${DOMAIN}\/fullchain.pem/" $ocservConfig
sed -i "s/server-key = \/etc\/ssl\/private\/ssl-cert-snakeoil.key/server-key = \/etc\/letsencrypt\/live\/${DOMAIN}\/privkey.pem/" $ocservConfig
systemctl reload nginx
else
touch /etc/nginx/conf.d/$DOMAIN.conf
echo "server {
listen 80;
server_name $DOMAIN;
root /var/www/ocserv/;
location ~ /.well-known/acme-challenge {
allow all;
}
}" >>/etc/nginx/conf.d/$DOMAIN.conf
mkdir -p /var/www/ocserv
chown www-data:www-data /var/www/ocserv -R
systemctl reload nginx
certbot certonly --webroot --agree-tos --email ${EMAIL} -d ${DOMAIN} -w /var/www/ocserv
fi
else
sed -i "/server-cert =/c\server-cert = ${CERTPATH//\//\\/}" $ocservConfig
sed -i "/server-key =/c\server-key = ${KEYPATH//\//\\/}" $ocservConfig
fi
else
touch /etc/nginx/conf.d/$DOMAIN.conf
echo "server {
listen 80;
server_name $DOMAIN;
root /var/www/ocserv/;
location ~ /.well-known/acme-challenge {
allow all;
}
}" >>/etc/nginx/conf.d/$DOMAIN.conf
mkdir -p /var/www/ocserv
chown www-data:www-data /var/www/ocserv -R
systemctl reload nginx
certbot certonly --webroot --agree-tos --email ${EMAIL} -d ${DOMAIN} -w /var/www/ocserv
sed -i "s/server-cert = \/etc\/ssl\/certs\/ssl-cert-snakeoil.pem/server-cert = \/etc\/letsencrypt\/live\/${DOMAIN}\/fullchain.pem/" $ocservConfig
sed -i "s/server-key = \/etc\/ssl\/private\/ssl-cert-snakeoil.key/server-key = \/etc\/letsencrypt\/live\/${DOMAIN}\/privkey.pem/" $ocservConfig
fi
else
if (systemctl is-active --quiet nginx); then
echo -e "${GREEN}Stopping the Nginx service...${EC}"
systemctl stop nginx
sleep 2
if [ $findCert ]; then
echo "1" | certbot certonly --standalone --preferred-challenges http --agree-tos --email ${EMAIL} -d ${DOMAIN}
else
echo "n" | certbot certonly --standalone --preferred-challenges http --agree-tos --email ${EMAIL} -d ${DOMAIN}
fi
sed -i "s/server-cert = \/etc\/ssl\/certs\/ssl-cert-snakeoil.pem/server-cert = \/etc\/letsencrypt\/live\/${DOMAIN}\/fullchain.pem/" $ocservConfig
sed -i "s/server-key = \/etc\/ssl\/private\/ssl-cert-snakeoil.key/server-key = \/etc\/letsencrypt\/live\/${DOMAIN}\/privkey.pem/" $ocservConfig
fi
fi
# OCServ Configuration
sed -i 's/auth = "pam\[gid-min=1000]"/auth = "plain\[passwd=\/etc\/ocserv\/ocpasswd]"/' $ocservConfig
sed -i "s/tcp-port = 443/tcp-port = $PORT/" $ocservConfig
sed -i "s/udp-port = 443/#udp-port = $PORT/" $ocservConfig
sed -i "s/max-same-clients = 2/max-same-clients = ${maxSameClient}/" $ocservConfig
sed -i 's/keepalive = 300/keepalive = 30/' $ocservConfig
sed -i 's/try-mtu-discovery = false/try-mtu-discovery = true/' $ocservConfig
sed -i "s/default-domain = example.com/default-domain = $DOMAIN/" $ocservConfig
sed -i 's/max-clients = 128/max-clients = 0/' $ocservConfig
sed -i 's/ipv4-network = 192.168.1.0/ipv4-network = 10.10.10.0/' $ocservConfig
sed -i 's/#ipv6-network = fda9:4efe:7e3b:03ea::\/48/ipv6-network = fda9:4efe:7e3b:03ea::\/48/' $ocservConfig
sed -i 's/#ipv6-subnet-prefix = 64/ipv6-subnet-prefix = 64/' $ocservConfig
sed -i 's/#tunnel-all-dns = true/tunnel-all-dns = true/' $ocservConfig
sed -i "s/dns = 8.8.8.8/dns = $PDNS/" $ocservConfig
sed -i "s/dns = 1.1.1.1/dns = $SDNS/" $ocservConfig
sed -i 's/route = 10.0.0.0\/8/#route = 10.0.0.0\/8/' $ocservConfig
sed -i 's/route = 172.16.0.0\/12/#route = 172.16.0.0\/12/' $ocservConfig
sed -i 's/route = 192.168.0.0\/16/#route = 192.168.0.0\/16/' $ocservConfig
echo -e "\n${RED}Configuration Completed${EC}\n"
# Creating Password for user
echo -e "$PASS\n$PASS" | ocpasswd -c /etc/ocserv/ocpasswd $DEFUSER
wait
# Enable ipv4 IP forward
echo -e "\n${GREEN}Enabling ipv4 IP forward...${EC}\n"
echo "net.ipv4.ip_forward = 1" | tee /etc/sysctl.d/60-custom.conf
echo "DONE"
# Enable TCP BBR
echo -e "\n${GREEN}Enabling TCP BBR algorithm...${EC}\n"
echo "net.core.default_qdisc=fq" | tee -a /etc/sysctl.d/60-custom.conf
echo "net.ipv4.tcp_congestion_control=bbr" | tee -a /etc/sysctl.d/60-custom.conf
echo "DONE"
echo -e "\n${GREEN}Apply the changes...${EC}\n"
sysctl -p /etc/sysctl.d/60-custom.conf
echo "DONE"
# UFW
apt-get install -y ufw &>/dev/null
ufw allow ssh &>/dev/null
ufw allow 80/tcp &>/dev/null
ufw allow ${PORT}/tcp &>/dev/null
ufw allow 80/udp &>/dev/null
ufw allow ${PORT}/udp &>/dev/null
echo "y" | ufw enable &>/dev/null
systemctl restart ocserv
# Add NAT Rule
echo "# NAT table rules OCServ
*nat
:POSTROUTING ACCEPT [0:0]
-A POSTROUTING -s 10.10.10.0/24 -o ${NET_INTER} -j MASQUERADE
COMMIT" >>/etc/ufw/before.rules
# Allow Forwading OcServ
sed -i '/-A ufw-before-forward -p icmp --icmp-type echo-request -j ACCEPT/a # allow forwarding OCServ' /etc/ufw/before.rules
sed -i '/# allow forwarding OCServ/a -A ufw-before-forward -s 10.10.10.0\/24 -j ACCEPT' /etc/ufw/before.rules
sed -i '/-A ufw-before-forward -s 10.10.10.0\/24 -j ACCEPT/a -A ufw-before-forward -d 10.10.10.0\/24 -j ACCEPT' /etc/ufw/before.rules
wait
systemctl restart ufw
echo "Waiting 10 seconds for UFW..."
spin &
pid=$!
sleep 10
kill $pid >/dev/null
echo -e "\n${GREEN}Display the result:${EC}"
iptables -t nat -L POSTROUTING
# Restarting Apache if Apache is active on the server and the user did not want to use Apache to obtain the certificate
if [[ $USE_APACHE == n ]]; then
if command -v apache2 >/dev/null; then
echo -e "${GREEN}Restarting Apache${EC}"
systemctl start apache2
fi
fi
# Restarting Nginx if Nginx is active on the server and the user did not want to use Nginx to obtain the certificate
if [[ $USE_NGINX == n ]]; then
if command -v nginx >/dev/null; then
echo -e "${GREEN}Restarting Nginx${EC}"
systemctl start nginx
fi
fi
# Completion of the operation and display the client connection information
echo -e "${YELLOW}###################################################################${EC}"
echo -e "Your OpenConnect server ${GREEN}is ready to use.${EC}"
echo -e "For Clients : \n${YELLOW}OpenConnect for Windows: ${EC}https://github.com/openconnect/openconnect-gui/releases/download/v1.5.3/openconnect-gui-1.5.3-win32.exe"
echo -e "${YELLOW}Anyconnect for Android: ${EC}https://play.google.com/store/apps/details?id=com.cisco.anyconnect.vpn.android.avf&hl=en&gl=US"
echo -e "${YELLOW}For Apple devices:${EC}Download AnyConnect from the App Store"
echo -e "\n${GREEN}Use the following information to connect the client: ${EC}"
echo -e "Server Address : $DOMAIN:$PORT"
echo -e "Username : $DEFUSER\nPassword : $PASS"
echo -e "If you want to add a new user, just run the script again.\n"
echo -e "${CYAN}There is no need to do anything manually. By running the script again from now, you have a menu where you can make all the settings through it.${EC}"
echo -e "${YELLOW}###################################################################${EC}"
echo -e "If you are happy with my script, you can make me happy with a small amount of ${GREEN}donation${EC}."
echo -e "My ${RED}Tether(USDT) TRC20${EC} Wallet : ${GREEN}TS3ipuQo27mXqxzrehtupgHrMyjKmf7wKz${EC}"
echo -e "My ${CYAN}Dash${EC} Wallet : ${GREEN}XokprTdUa9B2fXmSZF6ErdrVQWg6MTtebj${EC}"
echo -e "My ${GREEN}BitcoinCash${EC} Wallet : ${GREEN}qz8uz6k7rwymtlad2rlhlqhxntl6t39s8g96kcumac${EC}"
echo -e "My LiteCoin Wallet : ${GREEN}ltc1qkw00pa4u4wmhnl807v4grca0qpq2pl0z26hc8k${EC}"
echo -e "My ${YELLOW}DogeCoin${EC} Wallet : ${GREEN}DToe1gyAvpUhDZFgL1FKYvyT818cFKUskf${EC}"
echo -e "${RED}Cheers!${EC}"
}
# Remove OCServ
function OCremove() {
echo "##############################"
echo -e "${GREEN}Removing OCServ${EC}"
echo "##############################"
until [[ $CONTINUE =~ (y|n) ]]; do
read -rp "Do you want to delete all the users that were created for OCServ? [y/n]: " -e CONTINUE
done
echo -e "Just wait a moment..."
systemctl stop ocserv*.service &>/dev/null
findPort=$(for file in /etc/ocserv/ocserv*.conf; do grep "tcp-port =" $file; done | awk '{print $3}')
findNumber=$(for i in $findPort; do ufw status numbered | grep -E $i | awk -F"[][]" '{print $2}'; done | sort -nr | cut -f 2-)
for i in $findNumber; do yes | ufw delete $i &>/dev/null; done
if [[ $CONTINUE == "y" ]]; then
rm -R /etc/ocserv
fi
spin &
pid=$!
apt purge -y ocserv &>/dev/null
apt -y autoremove &>/dev/null
kill $pid &>/dev/null
rm /lib/systemd/system/ocserv*.service &>/dev/null
# Remove NAT table rules
sed -i "/# NAT table rules OCServ*/,+4d" /etc/ufw/before.rules
sed -i "/# allow forwarding OCServ*/,+2d" /etc/ufw/before.rules
systemctl restart ufw
echo "##############################"
echo -e "${GREEN}DONE${EC}"
echo -e "${CYAN}The LetsEncrypt is left intact to prevent the deletion of certificates created by you. If you want to remove it, use the following command:${EC}\napt purge certbot"
echo "##############################"
}
# Main Menu
function mainmenu() {
source /etc/os-release
echo "OS : $ID"
echo "OS Version : $VERSION"
ocserv -v
echo -e "\nServices status:"
if (command -v ocserv &>/dev/null); then
for file in $serverlist_names; do
echo "$file : $(systemctl is-active $file)"
done
else
echo -e "There are no active services"
fi
echo -ne "
${BOLDGREEN}MAIN MENU${EC}
${RED}1${EC}) Users Menu
${RED}2${EC}) OCServ Menu
${RED}3${EC}) LetsEncrypt Menu
${RED}4${EC}) Add Multiple OCServ
${RED}5${EC}) Remove OCServ 'Use it carefully. Can not be undone (LetsEncrypt will not be removed)'
${RED}0${EC}) Exit
Choose an option: "
read -r ans
case $ans in
1)
clear
UserMenu
;;
2)
clear
OCServMenu
;;
3)
clear
LetsEncrypt_Menu
;;
4)
clear
AddMultipleOC_Question
;;
5)
clear
OCremovequestion
;;
0)
clear
echo "If you need anything, I'm here!
Bye Bye"
exit 0
;;
*)
clear
echo "$ans is Wrong."
mainmenu
;;
esac
}
# Add New User
function UserMenu_ADD() {
echo -n "Please enter a new username: "
read userInput
if ((${#userInput} < 4)); then
echo -e "${RED}Username is too short, at least 4 characters are required.${EC}" >&2
UserMenu_ADD
else
if [[ -n "$userInput" ]]; then
NEWUSER=$userInput
fi
if grep -w "${NEWUSER}" /etc/ocserv/ocpasswd; then
echo "User is already exist"
UserMenu_ADD
elif pass_validator $passWord; then
echo -e "$password\n$password" | ocpasswd -c /etc/ocserv/ocpasswd $NEWUSER
clear
echo -e "\nThe user '${YELLOW}$NEWUSER${EC}' has been successfully created. "
UserMenu
fi
fi
}
# Revoke an existing user
function UserMenu_Revoke() {
PS3="Pick a username to remove (0 for back to the menu): "
LIST=$(awk -F: '{print $1}' "/etc/ocserv/ocpasswd")
options=($LIST)
if [[ -z $LIST ]]; then
echo "No users found."
UserMenu
fi
select menu in "${options[@]}"; do
echo -e "\nyou picked $menu ($REPLY)"
if [[ $REPLY == 0 ]]; then
clear
UserMenu
else
if [[ $REPLY -gt ${#options[@]} ]] || ! [[ $REPLY =~ ^[0-9]+$ ]]; then
clear
echo -e "${RED}Wrong number. User not found.${EC}"
UserMenu_Revoke
else
clear
ocpasswd -d $menu
echo -e "The User account "${YELLOW}$menu${EC}" has been successfully deleted. \n"
UserMenu
fi
fi
break
done
}
# Change the password for an existing user
function pass_change() {
PS3="Pick a user to change the password (Enter 0 to Cancel): "
LIST=$(awk -F: '{print $1}' "/etc/ocserv/ocpasswd")
options=($LIST)
if [[ -z $LIST ]]; then
echo "No users found."
UserMenu_Modify
fi
select menu in "${options[@]}"; do
echo -e "\nyou picked $menu ($REPLY)"
if [[ $REPLY -gt ${#options[@]} ]] || ! [[ $REPLY =~ ^[0-9]+$ ]]; then
clear
echo -e "${RED}Wrong number. User not found.${EC}"
pass_change
elif [[ $REPLY -eq 0 ]]; then
clear
UserMenu_Modify
elif pass_validator $passWord; then
echo -e "$password\n$password" | ocpasswd -c /etc/ocserv/ocpasswd $menu
clear
echo -e "\nThe password for user '${YELLOW}$menu${EC}' has been successfully changed."
UserMenu_Modify
fi
break
done
}
# Change an existing username
function UserMenu_Modify_ChangeUser() {
PS3="Select a user to change username: "
LIST=$(awk -F: '{print $1}' "/etc/ocserv/ocpasswd")
options=($LIST)
if [[ -z $LIST ]]; then
echo "No users found."
UserMenu
fi
select menu in "${options[@]}"; do
echo -e "\nyou picked $menu ($REPLY)"
if [[ $REPLY -gt ${#options[@]} ]] || ! [[ $REPLY =~ ^[0-9]+$ ]]; then
clear
echo -e "${RED}Wrong number. User not found.${EC}"
UserMenu_Modify_ChangeUser
else
echo -n "Please enter a new username for $menu: "
read userInput
if [[ -n $userInput ]]; then
newname=$userInput
sed -i "s/\b$menu\b/$newname/" /etc/ocserv/ocpasswd
clear
echo -e "${CYAN}$menu${EC}'s username has been replaced by ${CYAN}$newname${EC}."
UserMenu_Modify
fi
fi
break
done
}
# Question for activating config per user
function UserMenu_Modify_ConfigPerUser_Question() {
echo -e "If you want to have a specific configuration for a user, you need to enable this feature first."
echo -e "\nDo you want to enable Config-Per-User ?"
select yn in "Yes" "No"; do
case $yn in
Yes)
sed -i 's/#config-per-user = \/etc\/ocserv\/config-per-user\//config-per-user = \/etc\/ocserv\/config-per-user\//' $ocservConfig
sed -i 's/#config-per-group = \/etc\/ocserv\/config-per-group\//config-per-group = \/etc\/ocserv\/config-per-group\//' $ocservConfig
clear
echo "Config-per-user is Enabled"
UserMenu_Modify_ConfigPerUser
;;
No)
clear
UserMenu_Modify
;;
esac
done
}
# Config per user
function UserMenu_Modify_ConfigPerUser() {
PS3="Please pick a user: "
LIST=$(awk -F: '{print $1}' "/etc/ocserv/ocpasswd")
options=($LIST)
if [[ -z $LIST ]]; then
echo "No users found."
UserMenu
fi
select menu in "${options[@]}"; do
echo -e "\nYou picked $menu ($REPLY)"
if [[ $REPLY -gt ${#options[@]} ]] || ! [[ $REPLY =~ ^[0-9]+$ ]]; then
echo -e "${RED}Wrong number. User not found.${EC}"
UserMenu_Modify
else
if ! [[ -d "/etc/ocserv/config-per-user/" ]]; then
mkdir /etc/ocserv/config-per-user/
elif ! [[ -f "/etc/ocserv/config-per-user/$menu" ]]; then
touch /etc/ocserv/config-per-user/$menu
fi
# DNS
while true; do
echo -n "If you want to change the DNS for this user, enter it (if you want to use the default DNS, leave it blank): "
read userInputDns
if [[ -z $userInputDns ]]; then
USERDNS=$PDNS
echo -e "${YELLOW}DNS will be set to $USERDNS${EC}"
break
else
if valid_ip $userInputDns; then
USERDNS=$userInputDns
stat='will be used as your Primary DNS'
echo -e "$USERDNS" "${GREEN}$stat${EC}"
break
else
stat='is not a valid IP address.'
echo -e "$userInputDns" "${RED}$stat${EC}"
fi
fi
done
until [[ $userInputMaxScl =~ ^[0-9]+$ ]]; do
echo -n "How many devices can connect to the server with this user account at the same time(0 means unlimited): "
read userInputMaxScl
done
if [[ $userInputMaxScl =~ ^[0-9]+$ ]]; then
USER_MAX_SAME_CLIENT=$userInputMaxScl
echo -e "${YELLOW}Max_Same_Client will be $USER_MAX_SAME_CLIENT${EC} "
else
echo -e "${RED}You must enter a number${EC}"
fi
while true; do
echo -n "If you want this user can connect to the server with a different domain, please enter your new domain name(Leave blank to use default Domain): "
read userInputDomain
if [[ -z $userInputDomain ]]; then
echo -e "${YELLOW}Default domain will be used${EC}"
break
else
if domain_validator $userInputDomain; then
stat='will be used as this user Domain'
echo -e "$userInputDomain" "${GREEN}$stat${EC}"
USER_NEW_DOMAIN=$userInputDomain
echo -e "${YELLOW}You entered a new domain for this user.
If you want to add a Certificate for this domain refer to Add New Certificate from OCServ Menu${EC}"
break
else
echo -e "${RED}Domain structure is incorrect.${EC}"
fi
fi
done
echo -n "The time (in seconds) that a client is allowed to stay idle before being disconnected (Leave it blank to disable): "
read userInputClIdle
echo -n "The time (in seconds) that a Mobile client is allowed to stay idle before being disconnected (Leave it blank to disable): "
read userInputClmidle
unlink /etc/ocserv/config-per-user/$menu
echo "max-same-clients = $USER_MAX_SAME_CLIENT" >>/etc/ocserv/config-per-user/$menu
if [[ -n $userInputDomain ]]; then
echo "default-domain = $USER_NEW_DOMAIN" >>/etc/ocserv/config-per-user/$menu
fi
echo "dns = $USERDNS" >>/etc/ocserv/config-per-user/$menu
if [[ -n $userInputClIdle ]]; then
USER_NEW_IDLE_TIME=$userInputClIdle
echo "idle-timeout = $USER_NEW_IDLE_TIME" >>/etc/ocserv/config-per-user/$menu
else
echo "#idle-timeout = 1200" >>/etc/ocserv/config-per-user/$menu
fi
if [[ -n $userInputClmidle ]]; then
USER_MOBILE_NEW_IDLE_TIME=$userInputClmidle
echo "idle-timeout = $USER_MOBILE_NEW_IDLE_TIME" >>/etc/ocserv/config-per-user/$menu
else
echo "#mobile-idle-timeout = 1800" >>/etc/ocserv/config-per-user/$menu
fi
clear
echo -e "A new configuration has been added for the user ${YELLOW}$menu${EC}."
read -p "Restarting OCServ Service to apply the changes..." -t 5
systemctl restart ocserv
clear
echo -e "\n${GREEN}DONE${EC}"
UserMenu_Modify
fi
break
done
}
# User modification menu
function UserMenu_Modify() {
echo -e "\n${GREEN}You can change the username or password individually.${EC}"
echo -ne "
${BOLDGREEN}User Modification Menu${EC}
${RED}1${EC}) Change an existing Username (Only the Username will change. The password will remain intact)
${RED}2${EC}) Change Passowrd (Change the Password for an existing User)
${RED}3${EC}) Config per User
${RED}4${EC}) Back to Main Menu
${RED}0${EC}) Exit
Choose an option: "
read -r ans
case $ans in
1)
clear
UserMenu_Modify_ChangeUser
;;
2)
clear
pass_change
;;
3)
clear
if [ -d "/etc/ocserv/config-per-user/" ]; then
UserMenu_Modify_ConfigPerUser
else
UserMenu_Modify_ConfigPerUser_Question
fi
;;
4)
clear
mainmenu
;;
0)
clear
echo "If you need anything, I'm here!
Bye Bye"
exit 0
;;
*)
clear
echo "$ans is Wrong."
UserMenu_Modify
;;
esac
}
# User control section
function UserMenu() {
echo -ne "
${BOLDGREEN}USER MENU${EC}
${RED}1${EC}) Add a New User
${RED}2${EC}) Revoke a User
${RED}3${EC}) Modify an existing User
${RED}4${EC}) Show All Users
${RED}5${EC}) Show Connected Users
${RED}6${EC}) Disconnect a User
${RED}7${EC}) Back to Main Menu
${RED}0${EC}) Exit
Choose an option: "
read -r ans
case $ans in
1)
UserMenu_ADD
;;
2)
clear
UserMenu_Revoke
;;
3)
clear
UserMenu_Modify
;;
4)
clear
echo -e "${YELLOW}List of all users:${EC}"
awk -F: '{print $1}' "/etc/ocserv/ocpasswd"
UserMenu
;;
5)
clear
echo -e "${YELLOW}List of connected users:${EC}"
occtl show users | awk '(NR>1) {print $2"-->ClientIP:"$4}'
UserMenu
;;
6)
clear
echo -e "${YELLOW}List of connected users:${EC}"
UserDC
;;
7)
clear
mainmenu
;;
0)
clear
echo "If you need anything, I'm here!
Bye Bye"
exit 0
;;
*)
clear
echo "$ans is Wrong."
UserMenu
;;
esac
}
# Disconnect a User
function UserDC() {
PS3="Pick a connected user to disconnect: "
LIST=$(occtl show users | awk '(NR>1) {print $2"-->ClientIP:"$4}')
options=($LIST)
if [[ -z $LIST ]]; then
echo "There are no users connected."
UserMenu
fi
select menu in "${options[@]}"; do
echo -e "\nyou picked $menu ($REPLY)"
if [[ $REPLY -gt ${#options[@]} ]] || ! [[ $REPLY =~ ^[0-9]+$ ]]; then
clear
echo "You picked $REPLY"
echo -e "${RED}Wrong number. User not found.${EC}"
UserDC
else
local CONTINUE=""
until [[ $CONTINUE =~ (y|n) ]]; do
read -rp "Are you sure about disconnecting this user? [y/n]: " -e CONTINUE
done
if [ $CONTINUE == n ]; then
clear
UserMenu
else
occtl show users | awk '(NR>1) {print $1}' >templist.txt
DC=$(sed -n "$REPLY{p;q}" templist.txt)
occtl disconnect id $DC
clear
echo -e "The User account "${YELLOW}$menu${EC}" has been successfully disconnected. \n"
unlink templist.txt
UserMenu
fi
fi
break
done
}
# Add a new Certificate
function AddCert() {
echo -e "${RED}*Please note${EC}, adding a new certificate in this section, only makes you able to connect to the server with more domains.
If you want to create a new domain with a new configuration (such as adding a new port) for the server, you should refer to the ${GREEN}Add Multiple OCServ${EC} from the Main Menu.\n "
echo -e "${RED}*Please note${EC}, You need a new Domain and an Email. ${RED}*Both are required*${EC}. ${CYAN}New Email is not necessary. You can use the Emails you used before.${EC}\n "
if email_validator $email; then
if newDomain $domainInput; then