Easy way to configure proxy environment

.proxyrc

proxy_server=proxy.your.heart
proxy_port=8080
proxy_user=subhi%40your.heart
proxy_password=your.heart

proxy.plugin.zsh

function proxy() {
  case "$1" in
    enable)
      if [[ -f $HOME/.proxyrc ]]; then
        . $HOME/.proxyrc
        if [[ -n "$proxy_server" && -n "$proxy_port" ]]; then
          if [[ -n "$proxy_user" && -n "$proxy_password" ]]; then
            export http_proxy="http://$proxy_user:$proxy_password@$proxy_server:$proxy_port"
          else
            export http_proxy="http://$proxy_server:$proxy_port"
          fi
          export https_proxy=$http_proxy
          export ftp_proxy=$http_proxy
          echo "Proxy environment variable set."
        else
          echo "Proxy configuration error"
        fi
      else
        echo "Proxy configuration not found!"
      fi
    ;;
    disable)
      unset http_proxy;
      unset https_proxy;
      unset ftp_proxy;
      echo "Proxy environment variable removed"
    ;;
  *)
    echo "Usage: $0 {enable|disable}"
  esac
}

sudoers

Defaults env_keep += "http_proxy https_proxy ftp_proxy"