#!/usr/bin/env bash
PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin
export PATH

sh_ver="1.0.6"
file="/usr/local/sbin/ocserv"
conf_file="/etc/ocserv"
conf="/etc/ocserv/ocserv.conf"
passwd_file="/etc/ocserv/ocpasswd"
log_file="/tmp/ocserv.log"
ocserv_ver="1.3.0"
PID_FILE="/var/run/ocserv.pid"

Green_font_prefix="\033[32m" && Red_font_prefix="\033[31m" && Green_background_prefix="\033[42;37m" && Red_background_prefix="\033[41;37m" && Font_color_suffix="\033[0m"
Info="${Green_font_prefix}[INFO]${Font_color_suffix}"
Error="${Red_font_prefix}[ERROR]${Font_color_suffix}"
Tip="${Green_font_prefix}[WARN]${Font_color_suffix}"

check_root(){
    [[ $EUID != 0 ]] && echo -e "${Error} Current user is not root or don't have root access，can't continue，please switch to root or use command: ${Green_background_prefix}sudo su${Font_color_suffix} to get a temp root privilege(may request user password)." && exit 1
}

# Check system
check_sys(){
    if [[ -f /etc/redhat-release ]]; then
        release="centos"
    elif cat /etc/issue | grep -q -E -i "debian"; then
        release="debian"
    elif cat /etc/issue | grep -q -E -i "ubuntu"; then
        release="ubuntu"
    elif cat /etc/issue | grep -q -E -i "centos|red hat|redhat"; then
        release="centos"
    elif cat /proc/version | grep -q -E -i "debian"; then
        release="debian"
    elif cat /proc/version | grep -q -E -i "ubuntu"; then
        release="ubuntu"
    elif cat /proc/version | grep -q -E -i "centos|red hat|redhat"; then
        release="centos"
    fi
    release="ubuntu"
    #bit=`uname -m`
}

check_installed_status(){
    [[ ! -e ${file} ]] && echo -e "${Error} ocserv haven't been installed, please check it!" && exit 1
    [[ ! -e ${conf} ]] && echo -e "${Error} ocserv config doesn't exist, please check it!" && [[ $1 != "un" ]] && exit 1
}

check_pid(){
    if [[ ! -e ${PID_FILE} ]]; then
        PID=""
    else
        PID=$(cat ${PID_FILE})
    fi
}

Get_ip(){
    ip=$(wget -qO- -t1 -T2 ipinfo.io/ip)
    if [[ -z "${ip}" ]]; then
        ip=$(wget -qO- -t1 -T2 api.ip.sb/ip)
        if [[ -z "${ip}" ]]; then
            ip=$(wget -qO- -t1 -T2 members.3322.org/dyndns/getip)
            if [[ -z "${ip}" ]]; then
                ip="VPS_IP"
            fi
        fi
    fi
}
Download_ocserv(){
    mkdir "ocserv" && cd "ocserv"
    wget "ftp://ftp.infradead.org/pub/ocserv/ocserv-${ocserv_ver}.tar.xz"
    [[ ! -s "ocserv-${ocserv_ver}.tar.xz" ]] && echo -e "${Error} ocserv source download failed!" && rm -rf "ocserv/" && rm -rf "ocserv-${ocserv_ver}.tar.xz" && exit 1
    tar -xJf ocserv-${ocserv_ver}.tar.xz && cd ocserv-${ocserv_ver}
    ./configure
    make
    make install
    cd .. && cd ..
    rm -rf ocserv/
    
    if [[ -e ${file} ]]; then
        mkdir "${conf_file}"
        wget --no-check-certificate -N -P "${conf_file}" "https://raw.githubusercontent.com/sfc9982/AnyConnect-Server/main/ocserv.conf"
        [[ ! -s "${conf}" ]] && echo -e "${Error} ocserv config download failed!" && rm -rf "${conf_file}" && exit 1
    else
        echo -e "${Error} ocserv compiled failed!" && exit 1
    fi
}
Service_ocserv(){
    if ! wget --no-check-certificate https://raw.githubusercontent.com/ToyoDAdoubiBackup/doubi/master/service/ocserv_debian -O /etc/init.d/ocserv; then
        echo -e "${Error} ocserv service management script downloadf failed!" && over
    fi
    chmod +x /etc/init.d/ocserv
    update-rc.d -f ocserv defaults
    echo -e "${Info} ocserv service management script download successfully."
}
rand(){
    min=10000
    max=$((60000-$min+1))
    num=$(date +%s%N)
    echo $(($num%$max+$min))
}
Generate_SSL(){
    lalala=$(rand)
    mkdir /tmp/ssl && cd /tmp/ssl
    echo -e 'cn = "'${lalala}'"
organization = "'${lalala}'"
serial = 1
expiration_days = 365
ca
signing_key
cert_signing_key
crl_signing_key' > ca.tmpl
    [[ $? != 0 ]] && echo -e "${Error} Write SSL cert signature template failed (ca.tmpl) !" && over
    certtool --generate-privkey --outfile ca-key.pem
    [[ $? != 0 ]] && echo -e "${Error} Generate SSL cert private key failed (ca-key.pem) !" && over
    certtool --generate-self-signed --load-privkey ca-key.pem --template ca.tmpl --outfile ca-cert.pem
    [[ $? != 0 ]] && echo -e "${Error} Generate SSL cert file failed (ca-cert.pem) !" && over
    
    Get_ip
    if [[ -z "$ip" ]]; then
        echo -e "${Error} get WAN IP failed !"
        read -e -p "Please manully input your WAN IP:" ip
        [[ -z "${ip}" ]] && echo "取消..." && over
    fi
    echo -e 'cn = "'${ip}'"
organization = "'${lalala}'"
expiration_days = 365
signing_key
encryption_key
tls_www_server' > server.tmpl
    [[ $? != 0 ]] && echo -e "${Error} Write SSL cert signature template failed (server.tmpl) !" && over
    certtool --generate-privkey --outfile server-key.pem
    [[ $? != 0 ]] && echo -e "${Error} Generate SSL cert private key failed (server-key.pem) !" && over
    certtool --generate-certificate --load-privkey server-key.pem --load-ca-certificate ca-cert.pem --load-ca-privkey ca-key.pem --template server.tmpl --outfile server-cert.pem
    [[ $? != 0 ]] && echo -e "${Error} Generate SSL cert file failed (server-cert.pem) !" && over
    
    mkdir /etc/ocserv/ssl
    mv ca-cert.pem /etc/ocserv/ssl/ca-cert.pem
    mv ca-key.pem /etc/ocserv/ssl/ca-key.pem
    mv server-cert.pem /etc/ocserv/ssl/server-cert.pem
    mv server-key.pem /etc/ocserv/ssl/server-key.pem
    cd .. && rm -rf /tmp/ssl/
}
Installation_dependency(){
    [[ ! -e "/dev/net/tun" ]] && echo -e "${Error} Your VPS haven't enabled TUN function, please contact your IDC, or use VPS control pannel to manully enable TUN/TAP !" && exit 1
    if [[ ${release} = "centos" ]]; then
        echo -e "${Error} CentOS is not offically supported, but you can edit my script !" && exit 1
    elif [[ ${release} = "debian" ]]; then
        cat /etc/issue |grep 9\..*>/dev/null
        if [[ $? = 0 ]]; then
            apt-get update
            apt-get install vim net-tools pkg-config build-essential libgnutls28-dev libwrap0-dev liblz4-dev libseccomp-dev libreadline-dev libnl-nf-3-dev libev-dev gnutls-bin ipcalc ipcalc-ng -y
        else
            mv /etc/apt/sources.list /etc/apt/sources.list.bak
            wget --no-check-certificate -O "/etc/apt/sources.list" "https://raw.githubusercontent.com/ToyoDAdoubiBackup/doubi/master/sources/us.sources.list"
            apt-get update
            apt-get install vim net-tools pkg-config build-essential libgnutls28-dev libwrap0-dev liblz4-dev libseccomp-dev libreadline-dev libnl-nf-3-dev libev-dev gnutls-bin ipcalc ipcalc-ng -y
            rm -rf /etc/apt/sources.list
            mv /etc/apt/sources.list.bak /etc/apt/sources.list
            apt-get update
        fi
    else
        apt-get update
        apt-get install vim net-tools pkg-config build-essential libgnutls28-dev libwrap0-dev liblz4-dev libseccomp-dev libreadline-dev libnl-nf-3-dev libev-dev gnutls-bin ipcalc ipcalc-ng -y
    fi
}
Install_ocserv(){
    check_root
    [[ -e ${file} ]] && echo -e "${Error} ocserv is already installed !" && exit 1
    echo -e "${Info} Start to install/config dependencies..."
    Installation_dependency
    echo -e "${Info} Start to download/install config file..."
    Download_ocserv
    echo -e "${Info} Start to download/install service script(init)..."
    Service_ocserv
    echo -e "${Info} Start to self-sign SSL cert..."
    Generate_SSL
    echo -e "${Info} Start to set account settings..."
    Read_config
    Set_Config
    echo -e "${Info} Start to set iptables firewall ..."
    Set_iptables
    echo -e "${Info} Start to add iptables firewall rules..."
    Add_iptables
    echo -e "${Info} Start to save iptables firewall rules..."
    Save_iptables
    echo -e "${Info} All progress installed completed, now starting..."
    Start_ocserv
}
Start_ocserv(){
    check_installed_status
    check_pid
    [[ ! -z ${PID} ]] && echo -e "${Error} ocserv is running !" && exit 1
    /etc/init.d/ocserv start
    sleep 2s
    check_pid
    [[ ! -z ${PID} ]] && View_Config
}
Stop_ocserv(){
    check_installed_status
    check_pid
    [[ -z ${PID} ]] && echo -e "${Error} ocserv is NOT running !" && exit 1
    /etc/init.d/ocserv stop
}
Restart_ocserv(){
    check_installed_status
    check_pid
    [[ ! -z ${PID} ]] && /etc/init.d/ocserv stop
    /etc/init.d/ocserv start
    sleep 2s
    check_pid
    [[ ! -z ${PID} ]] && View_Config
}
Set_ocserv(){
    [[ ! -e ${conf} ]] && echo -e "${Error} ocserv config file doesn't exist !" && exit 1
    tcp_port=$(cat ${conf}|grep "tcp-port ="|awk -F ' = ' '{print $NF}')
    udp_port=$(cat ${conf}|grep "udp-port ="|awk -F ' = ' '{print $NF}')
    vim ${conf}
    set_tcp_port=$(cat ${conf}|grep "tcp-port ="|awk -F ' = ' '{print $NF}')
    set_udp_port=$(cat ${conf}|grep "udp-port ="|awk -F ' = ' '{print $NF}')
    Del_iptables
    Add_iptables
    Save_iptables
    echo "Restart ocserv ? (Y/n)"
    read -e -p "(Default: Y):" yn
    [[ -z ${yn} ]] && yn="y"
    if [[ ${yn} == [Yy] ]]; then
        Restart_ocserv
    fi
}
Set_username(){
    echo "Please input the username of VPN account"
    read -e -p "(Default: admin):" username
    [[ -z "${username}" ]] && username="admin"
    echo && echo -e "   Username : ${Red_font_prefix}${username}${Font_color_suffix}" && echo
}
Set_passwd(){
    echo "Please input the password of VPN account"
    read -e -p "(默认: doub.io):" userpass
    [[ -z "${userpass}" ]] && userpass="password"
    echo && echo -e "   Password : ${Red_font_prefix}${userpass}${Font_color_suffix}" && echo
}
Set_tcp_port(){
    while true
    do
    echo -e "Please input VPN Server's TCP port"
    read -e -p "(Default: 443):" set_tcp_port
    [[ -z "$set_tcp_port" ]] && set_tcp_port="443"
    echo $((${set_tcp_port}+0)) &>/dev/null
    if [[ $? -eq 0 ]]; then
        if [[ ${set_tcp_port} -ge 1 ]] && [[ ${set_tcp_port} -le 65535 ]]; then
            echo && echo -e "   TCP Port : ${Red_font_prefix}${set_tcp_port}${Font_color_suffix}" && echo
            break
        else
            echo -e "${Error} Please input a valid number！"
        fi
    else
        echo -e "${Error} Please input a valid number！"
    fi
    done
}
Set_udp_port(){
    while true
    do
    echo -e "Please input VPN Server's UDP port"
    read -e -p "(Default: ${set_tcp_port}):" set_udp_port
    [[ -z "$set_udp_port" ]] && set_udp_port="${set_tcp_port}"
    echo $((${set_udp_port}+0)) &>/dev/null
    if [[ $? -eq 0 ]]; then
        if [[ ${set_udp_port} -ge 1 ]] && [[ ${set_udp_port} -le 65535 ]]; then
            echo && echo -e "   UDP Port : ${Red_font_prefix}${set_udp_port}${Font_color_suffix}" && echo
            break
        else
            echo -e "${Error} Please input a valid number！"
        fi
    else
        echo -e "${Error} Please input a valid number！"
    fi
    done
}
Set_Config(){
    Set_username
    Set_passwd
    echo -e "${userpass}\n${userpass}"|ocpasswd -c ${passwd_file} ${username}
    Set_tcp_port
    Set_udp_port
    sed -i 's/tcp-port = '"$(echo ${tcp_port})"'/tcp-port = '"$(echo ${set_tcp_port})"'/g' ${conf}
    sed -i 's/udp-port = '"$(echo ${udp_port})"'/udp-port = '"$(echo ${set_udp_port})"'/g' ${conf}
}
Read_config(){
    [[ ! -e ${conf} ]] && echo -e "${Error} ocserv config file doesn't exist !" && exit 1
    conf_text=$(cat ${conf}|grep -v '#')
    tcp_port=$(echo -e "${conf_text}"|grep "tcp-port ="|awk -F ' = ' '{print $NF}')
    udp_port=$(echo -e "${conf_text}"|grep "udp-port ="|awk -F ' = ' '{print $NF}')
    max_same_clients=$(echo -e "${conf_text}"|grep "max-same-clients ="|awk -F ' = ' '{print $NF}')
    max_clients=$(echo -e "${conf_text}"|grep "max-clients ="|awk -F ' = ' '{print $NF}')
}
List_User(){
    [[ ! -e ${passwd_file} ]] && echo -e "${Error} ocserv account config file doesn't exist !" && exit 1
    User_text=$(cat ${passwd_file})
    if [[ ! -z ${User_text} ]]; then
        User_num=$(echo -e "${User_text}"|wc -l)
        user_list_all=""
        for((integer = 1; integer <= ${User_num}; integer++))
        do
            user_name=$(echo -e "${User_text}" | awk -F ':*:' '{print $1}' | sed -n "${integer}p")
            user_status=$(echo -e "${User_text}" | awk -F ':*:' '{print $NF}' | sed -n "${integer}p"|cut -c 1)
            if [[ ${user_status} == '!' ]]; then
                user_status="Disable"
            else
                user_status="Enable"
            fi
            user_list_all=${user_list_all}"Username: "${user_name}" Account status: "${user_status}"\n"
        done
        echo && echo -e "Total user ${Green_font_prefix}"${User_num}"${Font_color_suffix}"
        echo -e ${user_list_all}
    fi
}
Add_User(){
    Set_username
    Set_passwd
    user_status=$(cat "${passwd_file}"|grep "${username}"':*:')
    [[ ! -z ${user_status} ]] && echo -e "${Error} Username is already exist ![ ${username} ]" && exit 1
    echo -e "${userpass}\n${userpass}"|ocpasswd -c ${passwd_file} ${username}
    user_status=$(cat "${passwd_file}"|grep "${username}"':*:')
    if [[ ! -z ${user_status} ]]; then
        echo -e "${Info} Adding account successfully ![ ${username} ]"
    else
        echo -e "${Error} Adding account failed ![ ${username} ]" && exit 1
    fi
}
Del_User(){
    List_User
    [[ ${User_num} == 1 ]] && echo -e "${Error} Only one account remain, unable to delete !" && exit 1
    echo -e "Please input username of account to delete"
    read -e -p "(Default canceling):" Del_username
    [[ -z "${Del_username}" ]] && echo "Canceled..." && exit 1
    user_status=$(cat "${passwd_file}"|grep "${Del_username}"':*:')
    [[ -z ${user_status} ]] && echo -e "${Error} username doesn't exist ! [${Del_username}]" && exit 1
    ocpasswd -c ${passwd_file} -d ${Del_username}
    user_status=$(cat "${passwd_file}"|grep "${Del_username}"':*:')
    if [[ -z ${user_status} ]]; then
        echo -e "${Info} Deleted ! [${Del_username}]"
    else
        echo -e "${Error} Deletion failed ! [${Del_username}]" && exit 1
    fi
}
Modify_User_disabled(){
    List_User
    echo -e "Please type Enable/Disable VPN account username"
    read -e -p "(Default canceling):" Modify_username
    [[ -z "${Modify_username}" ]] && echo "Canceled..." && exit 1
    user_status=$(cat "${passwd_file}"|grep "${Modify_username}"':*:')
    [[ -z ${user_status} ]] && echo -e "${Error} username doesn't exist ! [${Modify_username}]" && exit 1
    user_status=$(cat "${passwd_file}" | grep "${Modify_username}"':*:' | awk -F ':*:' '{print $NF}' |cut -c 1)
    if [[ ${user_status} == '!' ]]; then
            ocpasswd -c ${passwd_file} -u ${Modify_username}
            user_status=$(cat "${passwd_file}" | grep "${Modify_username}"':*:' | awk -F ':*:' '{print $NF}' |cut -c 1)
            if [[ ${user_status} != '!' ]]; then
                echo -e "${Info} Enable successed ! [${Modify_username}]"
            else
                echo -e "${Error} Enable failed ! [${Modify_username}]" && exit 1
            fi
        else
            ocpasswd -c ${passwd_file} -l ${Modify_username}
            user_status=$(cat "${passwd_file}" | grep "${Modify_username}"':*:' | awk -F ':*:' '{print $NF}' |cut -c 1)
            if [[ ${user_status} == '!' ]]; then
                echo -e "${Info} Disable successed ! [${Modify_username}]"
            else
                echo -e "${Error} Disable failed ! [${Modify_username}]" && exit 1
            fi
        fi
}
Set_Pass(){
    check_installed_status
    echo && echo -e " What wanna you do?
    
 ${Green_font_prefix} 0.${Font_color_suffix} List users
————————
 ${Green_font_prefix} 1.${Font_color_suffix} Add users
 ${Green_font_prefix} 2.${Font_color_suffix} Delete users
————————
 ${Green_font_prefix} 3.${Font_color_suffix} Enable/Disable users
 
 NOTICE：After these operations, restart is NOT needed !" && echo
    read -e -p "(Default: Cancel):" set_num
    [[ -z "${set_num}" ]] && echo "Canceled..." && exit 1
    if [[ ${set_num} == "0" ]]; then
        List_User
    elif [[ ${set_num} == "1" ]]; then
        Add_User
    elif [[ ${set_num} == "2" ]]; then
        Del_User
    elif [[ ${set_num} == "3" ]]; then
        Modify_User_disabled
    else
        echo -e "${Error} Please input a valid number[1-3]" && exit 1
    fi
}
View_Config(){
    Get_ip
    Read_config
    clear && echo "===================================================" && echo
    echo -e " AnyConnect Conf：" && echo
    echo -e " I  P\t\t  : ${Green_font_prefix}${ip}${Font_color_suffix}"
    echo -e " TCP Port\t  : ${Green_font_prefix}${tcp_port}${Font_color_suffix}"
    echo -e " UDP Port\t  : ${Green_font_prefix}${udp_port}${Font_color_suffix}"
    echo -e " Single user device limit : ${Green_font_prefix}${max_same_clients}${Font_color_suffix}"
    echo -e " Total user device limit : ${Green_font_prefix}${max_clients}${Font_color_suffix}"
    echo -e "\n Link for clients : ${Green_font_prefix}${ip}:${tcp_port}${Font_color_suffix}"
    echo && echo "==================================================="
}
View_Log(){
    [[ ! -e ${log_file} ]] && echo -e "${Error} ocserv log doesn't exist !" && exit 1
    echo && echo -e "${Tip} Press ${Red_font_prefix}Ctrl+C${Font_color_suffix} Stop View log" && echo -e "If you want to View all log, please use ${Red_font_prefix}cat ${log_file}${Font_color_suffix} command。" && echo
    tail -f ${log_file}
}
Uninstall_ocserv(){
    check_installed_status "un"
    echo "Are you sure uninstall ocserv ? (y/N)"
    echo
    read -e -p "(Default: n):" unyn
    [[ -z ${unyn} ]] && unyn="n"
    if [[ ${unyn} == [Yy] ]]; then
        check_pid
        [[ ! -z $PID ]] && kill -9 ${PID} && rm -f ${PID_FILE}
        Read_config
        Del_iptables
        Save_iptables
        update-rc.d -f ocserv remove
        rm -rf /etc/init.d/ocserv
        rm -rf "${conf_file}"
        rm -rf "${log_file}"
        cd '/usr/local/bin' && rm -f occtl
        rm -f ocpasswd
        cd '/usr/local/bin' && rm -f ocserv-fw
        cd '/usr/local/sbin' && rm -f ocserv
        cd '/usr/local/share/man/man8' && rm -f ocserv.8
        rm -f ocpasswd.8
        rm -f occtl.8
        echo && echo "ocserv uninstall completed !" && echo
    else
        echo && echo "uninstall canceled..." && echo
    fi
}
over(){
    update-rc.d -f ocserv remove
    rm -rf /etc/init.d/ocserv
    rm -rf "${conf_file}"
    rm -rf "${log_file}"
    cd '/usr/local/bin' && rm -f occtl
    rm -f ocpasswd
    cd '/usr/local/bin' && rm -f ocserv-fw
    cd '/usr/local/sbin' && rm -f ocserv
    cd '/usr/local/share/man/man8' && rm -f ocserv.8
    rm -f ocpasswd.8
    rm -f occtl.8
    echo && echo "install failed，ocserv uninstalled !" && echo
}
Add_iptables(){
    iptables -I INPUT -m state --state NEW -m tcp -p tcp --dport ${set_tcp_port} -j ACCEPT
    iptables -I INPUT -m state --state NEW -m udp -p udp --dport ${set_udp_port} -j ACCEPT
}
Del_iptables(){
    iptables -D INPUT -m state --state NEW -m tcp -p tcp --dport ${tcp_port} -j ACCEPT
    iptables -D INPUT -m state --state NEW -m udp -p udp --dport ${udp_port} -j ACCEPT
}
Save_iptables(){
    iptables-save > /etc/iptables.up.rules
}
Set_iptables(){
    echo -e "net.ipv4.ip_forward=1" >> /etc/sysctl.conf
    sysctl -p
    ifconfig_status=$(ifconfig)
    if [[ -z ${ifconfig_status} ]]; then
        echo -e "${Error} ifconfig 未install !"
        read -e -p "Please input your interface name manully(eth0 ens3 enpXsX venet0):" Network_card
        [[ -z "${Network_card}" ]] && echo "Canceled..." && exit 1
    else
        Network_card=$(ifconfig|grep "eth0")
        if [[ ! -z ${Network_card} ]]; then
            Network_card="eth0"
        else
            Network_card=$(ifconfig|grep "ens3")
            if [[ ! -z ${Network_card} ]]; then
                Network_card="ens3"
            else
                Network_card=$(ifconfig|grep "venet0")
                if [[ ! -z ${Network_card} ]]; then
                    Network_card="venet0"
                else
                    ifconfig
                    read -e -p "Current network interface is not eth0 \ ens3(Debian9) \ venet0(OpenVZ) \ enpXsX(CentOS Ubuntu Latest), please manully input your NIC name:" Network_card
                    [[ -z "${Network_card}" ]] && echo "Canceled..." && exit 1
                fi
            fi
        fi
    fi
    iptables -t nat -A POSTROUTING -o ${Network_card} -j MASQUERADE
    
    iptables-save > /etc/iptables.up.rules
    echo -e '#!/bin/bash\n/sbin/iptables-restore < /etc/iptables.up.rules' > /etc/network/if-pre-up.d/iptables
    chmod +x /etc/network/if-pre-up.d/iptables
}
Update_Shell(){
    sh_new_ver=$(wget --no-check-certificate -qO- -t1 -T3 "https://raw.githubusercontent.com/ToyoDAdoubiBackup/doubi/master/ocserv.sh"|grep 'sh_ver="'|awk -F "=" '{print $NF}'|sed 's/\"//g'|head -1) && sh_new_type="github"
    [[ -z ${sh_new_ver} ]] && echo -e "${Error} Unable to connect to Github !" && exit 0
    if [[ -e "/etc/init.d/ocserv" ]]; then
        rm -rf /etc/init.d/ocserv
        Service_ocserv
    fi
    wget -N --no-check-certificate "https://raw.githubusercontent.com/ToyoDAdoubiBackup/doubi/master/ocserv.sh" && chmod +x ocserv.sh
    echo -e "already latest[ ${sh_new_ver} ] !(WARN：may come out some warnings, just ignore them)" && exit 0
}
check_sys
[[ ${release} != "debian" ]] && [[ ${release} != "ubuntu" ]] && echo -e "${Error} OS is not supported ${release} !" && exit 1
echo && echo -e " ocserv 1key install and conf script ${Red_font_prefix}[v${sh_ver}]${Font_color_suffix}
  -- Toyo | doub.io/vpnzy-7 --
  
 ${Green_font_prefix}0.${Font_color_suffix} Upgrade Script (DO NOT UPDATE)
————————————
 ${Green_font_prefix}1.${Font_color_suffix} install ocserv
 ${Green_font_prefix}2.${Font_color_suffix} uninstall ocserv
————————————
 ${Green_font_prefix}3.${Font_color_suffix} Start ocserv
 ${Green_font_prefix}4.${Font_color_suffix} Stop ocserv
 ${Green_font_prefix}5.${Font_color_suffix} Restart ocserv
————————————
 ${Green_font_prefix}6.${Font_color_suffix} Set account conf
 ${Green_font_prefix}7.${Font_color_suffix} View conf
 ${Green_font_prefix}8.${Font_color_suffix} Edit config file 
 ${Green_font_prefix}9.${Font_color_suffix} View log
————————————" && echo
if [[ -e ${file} ]]; then
    check_pid
    if [[ ! -z "${PID}" ]]; then
        echo -e " Current status: ${Green_font_prefix}installed${Font_color_suffix} and ${Green_font_prefix}running${Font_color_suffix}"
    else
        echo -e " Current status: ${Green_font_prefix}installed ${Font_color_suffix} but ${Red_font_prefix} NOT running${Font_color_suffix}"
    fi
else
    echo -e " Current status: ${Red_font_prefix}not installed${Font_color_suffix}"
fi
echo
read -e -p " Please input number [0-9]:" num
case "$num" in
    0)
    Update_Shell
    ;;
    1)
    Install_ocserv
    ;;
    2)
    Uninstall_ocserv
    ;;
    3)
    Start_ocserv
    ;;
    4)
    Stop_ocserv
    ;;
    5)
    Restart_ocserv
    ;;
    6)
    Set_Pass
    ;;
    7)
    View_Config
    ;;
    8)
    Set_ocserv
    ;;
    9)
    View_Log
    ;;
    *)
    echo "Please input current number [0-9]"
    ;;
esac
set 限制解除