sniproxy.sh

#!/bin/bash

if [[ "$(uname -s)" == "Linux" ]]; then
    if [ -f /etc/debian_version ]; then
        OS="Debian"
        PKG="apt-get"
    elif [ -f /etc/redhat-release ]; then
        OS="Red Hat"
        PKG="yum"
    elif [ -f /etc/arch-release ]; then
        OS="Arch"
        PKG="pacman"
    else
        echo "Unsupported operating system"
        exit 1
    fi
else
    echo "Unsupported operating system"
    exit 1
fi

if [[ "$PKG" == "apt-get" ]]; then
    sudo $PKG update
    sudo $PKG install -y openssl stunnel4
elif [[ "$PKG" == "yum" ]]; then
    sudo $PKG update
    sudo $PKG install -y openssl stunnel
elif [[ "$PKG" == "pacman" ]]; then
    sudo $PKG -Syu
    sudo $PKG -S openssl stunnel
fi

sudo openssl genrsa -out key.pem 2048
sudo openssl req -new -key key.pem -out cert.csr -subj "/CN=localhost"
sudo openssl x509 -req -in cert.csr -signkey key.pem -out cert.pem

sudo tee /etc/stunnel/stunnel.conf > /dev/null <<EOF
pid=/var/run/stunnel.pid
output=/var/log/stunnel.log

[proxy]
accept = 443
client = yes
connect = 127.0.0.1:8080
cert = /etc/stunnel/cert.pem
key = /etc/stunnel/key.pem
EOF

sudo systemctl start stunnel

sudo systemctl enable stunnel

echo "SNI proxy installation and configuration is complete."