Setup proxy for WSL2

proxy.md

1. Add the following code to .bashrc.
2. Run source .bashrc to reload.
3. Run proxy to setup proxy, and unproxy to unproxy.

function getip {
        export winip=$(ip route | grep default | awk '{print $3}')
        export wslip=$(hostname -I | awk '{print $1}')
        echo "WIN IP: ${winip}"
        echo "WSL IP: ${wslip}"
        export PROXY_HTTP="http://${winip}:7890"      # SET YOUR HTTP PORT
        export PROXY_SOCKS5="socks5://${winip}:7890"  # SET YOUR SOCKS PORT
}

function proxy {
        getip
        export http_proxy="${PROXY_HTTP}"
        export HTTP_PROXY="${PROXY_HTTP}"
        export https_proxy="${PROXY_HTTP}"
        export HTTPS_PROXY="${PROXY_HTTP}"
        export all_proxy="${PROXY_SOCKS5}"
        export ALL_PROXY="${PROXY_SOCKS5}"

        echo "http: ${PROXY_HTTP}"
        echo "socks5: ${PROXY_SOCKS5}"
        echo "DONE!"
}

function unproxy {
        unset http_proxy
        unset HTTP_PROXY
        unset https_proxy
        unset HTTPS_PROXY
        unset all_proxy
        unset ALL_PROXY
        echo "DONE!"
}