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

RED_COLOR="\033[0;31m"
NO_COLOR="\033[0m"
GREEN="\033[32m\033[01m"
BLUE="\033[0;36m"
FUCHSIA="\033[0;35m"

nginx_v=1.25.3.1

install_nginx(){
apt update -y && apt install vim curl lsof wget -y
apt install build-essential libpcre3 libpcre3-dev zlib1g-dev openssl libssl-dev linux-image-amd64 linux-headers-amd64 -y
wget -N --no-check-certificate https://git.igewu.org/yanglc/tunnel/raw/branch/main/$nginx_v.tar.gz && tar -xvzf $nginx_v.tar.gz
cd openresty-$nginx_v
./configure \
--prefix=/etc/nginx \
--sbin-path=/usr/sbin/nginx \
--conf-path=/etc/nginx/nginx.conf \
--error-log-path=/var/log/nginx/error.log \
--http-log-path=/var/log/nginx/access.log \
--pid-path=/var/run/nginx.pid \
--lock-path=/var/run/nginx.lock \
--with-file-aio \
--with-threads \
--with-stream \
--with-stream_realip_module \
--with-stream_ssl_module \
--with-stream_ssl_preread_module
make && make install
cd
rm -rf $nginx_v.tar.gz openresty-$nginx_v
wget -N --no-check-certificate -P /etc/nginx/ "https://git.igewu.org/yanglc/tunnel/raw/branch/main/nginx.conf"
wget -N --no-check-certificate -P /usr/lib/systemd/system/ "https://git.igewu.org/yanglc/tunnel/raw/branch/main/nginx.service"
systemctl enable nginx --now
systemctl daemon-reload
install_wireguard
99_menu
}

install_wireguard(){
apt install linux-image-amd64 -y && apt install wireguard -y
systemctl enable wg-quick@wg0
}

nginx_conf(){
echo -e "
 ${GREEN} 1.跳板机
 ${GREEN} 2.中转机
 "
read -p "输入选项:" aNum
echo -e "
 ${GREEN} 1.隧道1(tunnel1)
 ${GREEN} 2.隧道2(tunnel2)
 ${GREEN} 3.隧道3(tunnel3)
 "
read -p "请输入括号里的代号:" mplsdh
if [ "$aNum" = "1" ];then
rm -rf /etc/nginx/nginx.conf
wget -N --no-check-certificate -P /etc/nginx/ "https://git.igewu.org/yanglc/tunnel/raw/branch/main/$mplsdh/client/nginx.txt"
wget -N --no-check-certificate -P /etc/nginx/ssl "https://git.igewu.org/yanglc/tunnel/raw/branch/main/$mplsdh/client/ca1.crt"
wget -N --no-check-certificate -P /etc/nginx/ "https://git.igewu.org/yanglc/tunnel/raw/branch/main/nginx.conf"
nginx_rows=`wc -l /etc/nginx/nginx.txt | awk '{print $1}'`
echo -e "
stream {" >> /etc/nginx/nginx.conf
for((i=1;i<=$nginx_rows;i++));  
do
listen_ip=`sed -n "$i, 1p" /etc/nginx/nginx.txt | awk '{print $1}'`
listen_port=`sed -n "$i, 1p" /etc/nginx/nginx.txt | awk '{print $2}'`
remote_ip=`sed -n "$i, 1p" /etc/nginx/nginx.txt | awk '{print $3}'`
remote_port=`sed -n "$i, 1p" /etc/nginx/nginx.txt | awk '{print $4}'`
lan_ip=`sed -n "$i, 1p" /etc/nginx/nginx.txt | awk '{print $5}'`
echo -e "
server {
        listen $listen_ip:$listen_port ssl;
        listen $lan_ip:$listen_port udp;
        ssl_protocols TLSv1.3;
        ssl_conf_command MinProtocol TLSv1.3;
        ssl_conf_command Ciphersuites TLS_CHACHA20_POLY1305_SHA256;
        ssl_certificate /etc/nginx/ssl/server.crt;
        ssl_certificate_key /etc/nginx/ssl/server.key;
        ssl_client_certificate /etc/nginx/ssl/ca1.crt;
        ssl_verify_client on;
        ssl_session_cache shared:SSL:15m;
        ssl_session_timeout 3h;
        ssl_session_tickets off;
        tcp_nodelay on;
        proxy_pass $remote_ip:$remote_port;
        proxy_protocol off;
        access_log off;
}" >> /etc/nginx/nginx.conf
done
elif [ "$aNum" = "2" ];then
rm -rf /etc/nginx/nginx.conf
wget -N --no-check-certificate -P /etc/nginx/ "https://git.igewu.org/yanglc/tunnel/raw/branch/main/$mplsdh/server/nginx.txt"
wget -N --no-check-certificate -P /etc/nginx/ssl "https://git.igewu.org/yanglc/tunnel/raw/branch/main/$mplsdh/server/ca1.crt"
wget -N --no-check-certificate -P /etc/nginx/ "https://git.igewu.org/yanglc/tunnel/raw/branch/main/nginx.conf"
nginx_rows=`wc -l /etc/nginx/nginx.txt | awk '{print $1}'`
echo -e "
stream {" >> /etc/nginx/nginx.conf
for((i=1;i<=$nginx_rows;i++));  
do
listen_ip=`sed -n "$i, 1p" /etc/nginx/nginx.txt | awk '{print $1}'`
listen_port=`sed -n "$i, 1p" /etc/nginx/nginx.txt | awk '{print $2}'`
remote_ip=`sed -n "$i, 1p" /etc/nginx/nginx.txt | awk '{print $3}'`
remote_port=`sed -n "$i, 1p" /etc/nginx/nginx.txt | awk '{print $4}'`
lan_ip=`sed -n "$i, 1p" /etc/nginx/nginx.txt | awk '{print $5}'`
echo -e "
server {
        listen $listen_ip:$listen_port;
        proxy_ssl_certificate /etc/nginx/ssl/server.crt;
        proxy_ssl_certificate_key /etc/nginx/ssl/server.key;
        proxy_ssl_trusted_certificate /etc/nginx/ssl/ca1.crt;
        proxy_ssl_protocols TLSv1.3;
        proxy_ssl_server_name on;
        proxy_ssl_verify on;
        proxy_ssl on;
        ssl_session_tickets off;
        tcp_nodelay on;
        proxy_ssl_name $remote_ip;
        proxy_pass $remote_ip:$remote_port;
        proxy_protocol off;
        access_log off;
}
server {
        listen $listen_ip:$listen_port udp;
        proxy_pass $lan_ip:$remote_port;
        proxy_protocol off;
        access_log off;
}" >> /etc/nginx/nginx.conf
done
fi
echo -e "
}" >> /etc/nginx/nginx.conf
wireguard_conf
systemctl restart nginx
99_menu
}

wireguard_conf(){
if [ "$aNum" = "1" ];then
wget -N --no-check-certificate -P /etc/wireguard "https://git.igewu.org/yanglc/tunnel/raw/branch/main/$mplsdh/client/wg0.conf"
elif [ "$aNum" = "2" ];then
wget -N --no-check-certificate -P /etc/wireguard "https://git.igewu.org/yanglc/tunnel/raw/branch/main/$mplsdh/server/wg0.conf"
fi
wg-quick down wg0
wg-quick up wg0
}

delete_firewall(){
if [[ "$EUID" -ne 0 ]]; then
    echo "false"
  else
    echo "true"
  fi
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
    
     if [[ $release = "ubuntu" || $release = "debian" ]]; then
ufw disable
apt-get remove ufw
apt-get purge ufw
  elif [[ $release = "centos" ]]; then
  systemctl stop firewalld.service
  systemctl disable firewalld.service 
  else
    exit 1
  fi
  99_menu
}

create_ssl(){
mkdir -p /etc/nginx/ssl
cd /etc/nginx/ssl
servername=`curl -s https://ip.nekocat.cn`
cat > my-openssl.cnf << EOF
[ ca ]
default_ca = CA_default
[ CA_default ]
x509_extensions = usr_cert
[ req ]
default_bits        = 2048
default_md          = sha256
default_keyfile     = privkey.pem
distinguished_name  = req_distinguished_name
attributes          = req_attributes
x509_extensions     = v3_ca
string_mask         = utf8only
[ req_distinguished_name ]
[ req_attributes ]
[ usr_cert ]
basicConstraints       = CA:FALSE
nsComment              = "OpenSSL Generated Certificate"
subjectKeyIdentifier   = hash
authorityKeyIdentifier = keyid,issuer
[ v3_ca ]
subjectKeyIdentifier   = hash
authorityKeyIdentifier = keyid:always,issuer
basicConstraints       = CA:true
EOF
openssl genrsa -out ca.key 2048
openssl req -x509 -new -nodes -key ca.key -subj "/CN=${servername}" -days 5000 -out ca.crt
openssl genrsa -out server.key 2048
openssl req -new -sha256 -key server.key \
    -subj "/C=CN/ST=yanglc/L=yanglc/O=mymisaka/CN=${servername}" \
    -reqexts SAN \
    -config <(cat my-openssl.cnf <(printf "\n[SAN]\nsubjectAltName=DNS:${servername},IP:${servername}")) \
    -out server.csr
openssl x509 -req -days 365 -sha256 \
	-in server.csr -CA ca.crt -CAkey ca.key -CAcreateserial \
	-extfile <(printf "subjectAltName=DNS:${servername},IP:${servername}") \
	-out server.crt
cat /etc/nginx/ssl/ca.crt
}

install_kernel(){
wget -N --no-check-certificate "https://git.igewu.org/yanglc/tunnel/raw/branch/main/tcp.sh" && chmod +x tcp.sh && ./tcp.sh
}

get_ip(){
ehco -e "你的ipv6地址是："
curl -6 ip.nekocat.cn
ehco -e "你的ipv4地址是："
curl -4 ip.nekocat.cn
}

manage_nginx(){
echo -e "
 ${GREEN} 1.停止隧道
 ${GREEN} 2.启动隧道
 ${GREEN} 3.重启隧道
"
read -p "请输入选项:" bNum
if [ "$bNum" = "1" ];then
wg-quick down wg0
systemctl stop nginx
elif [ "$bNum" = "2" ];then
wg-quick up wg0
systemctl start nginx
elif [ "$bNum" = "3" ];then
wg-quick down wg0
wg-quick up wg0
systemctl restart nginx
fi
99_menu
}

99_menu(){
clear
echo -e " 
 ${GREEN} 1.安装隧道工具
 ${GREEN} 2.获取隧道配置
 ${GREEN} 3.查看当前ip
 ${GREEN} 4.删除防火墙
 ${GREEN} 5.管理隧道
 ${GREEN} 6.自签ssl
 ${GREEN} 7.安装内核
 ${GREEN} 0.退出脚本"
read -p " 请输入数字后[0-7] 按回车键:" num
case "$num" in
	1)
	install_nginx
	;;
	2)
	nginx_conf
	;;
  3)
	get_ip
	;;
	4)
	delete_firewall
	;;
	5)
	manage_nginx
	;;
	6)
	create_ssl
	;;
	7)
	install_kernel
	;;
	0)
	exit 1
	;;
	*)	
	echo "请输入正确数字 [0-7] 按回车键"
	sleep 1s
	99_menu
	;;
esac
}
99_menu