#!/bin/bash
 
function istruzioni() {
    echo -e "\n[Utility per tunnel SOCKS5 su Chromium]"

    echo -e "\nutilizzo: chtunn <1025-65535> [-i] [-p]"

    echo -e "\nesempio:"
    echo -e "Su una finestra del terminale: ssh user@server.mio -D 1234"
    echo -e "Su una altra finestra del terminale: chtunn 1234"
    echo -e "Argomenti"
    echo -e "-i    attiva incognito mode"
    echo -e "-p    uBlock Origin preinstallato"
    echo -e "-h    Mostra questo menu\n"
}

function ublock() {
    VERS=$(curl -s "https://api.github.com/repos/gorhill/uBlock/releases/latest" | jq -r .tag_name)

    rm -rf "/tmp/uBlock0.chromium"
    cd /tmp/
    wget -q https://github.com/gorhill/uBlock/releases/download/$VERS/uBlock0_$VERS.chromium.zip
    unzip -q uBlock0_$VERS.chromium.zip
}

# mostra help
if [[ $1 == '-h' || $1 == '--help' ]]; then
    istruzioni
    exit 1
fi

# variabili
VERS=""
incognito_option=""
plugin_option=""

# Check argomenti
for arg in "$@"; do
    case $arg in
        -i)
            incognito_option="--incognito"
            ;;
        -p)
            ublock
            plugin_option="--load-extension=/tmp/uBlock0.chromium --enable-remote-extensions"
            ;;
        -ip)
            incognito_option="--incognito"
            ublock
            plugin_option="--load-extension=/tmp/uBlock0.chromium --enable-remote-extensions"
            ;;
        -pi)
            ublock
            plugin_option="--load-extension=/tmp/uBlock0.chromium --enable-remote-extensions"
            incognito_option="--incognito"
            ;;
    esac
done

# Debug
echo -e $incognito_option $plugin_option '\nchromium --proxy-server="socks5://127.0.0.1:'$1 '--user-data-dir=/'$HOME'/.config/chromium/CHTUNN/chtunn-'$1'\n'

# Avvia tunnel sock5 con Chromium
/usr/bin/chromium $incognito_option $plugin_option --proxy-server="socks5://127.0.0.1:$1" --user-data-dir=/$HOME/.config/chromium/CHTUNN/chtunn-$1 %U > /dev/null 1> /dev/null 2> /dev/null &