inlets bash helper function

httproxy.sh

# add this to your .bashrc
# call it with httproxy http://proxied-url.tld

httproxy() {
 
    local bold='\e[1m' reset='\e[0m' bright='\e[37m'
    local info='\e[96m' warn='\e[93m' error='\e[91m'
    local helpmsg=$(cat <<HELP
        ${info}Usage:${reset}
            ${bright}${FUNCNAME[0]} <proxied-url>${reset}
HELP
)
    local token='<-- INLETS TOKEN -->'
    local wss_url='wss://<-- INLETS HOST -->'
    local proxy_addr="$(head -c 50 /dev/urandom | tr -cd [:alnum:] | tr '[A-Z]' '[a-z]').<--INLETS DOMAIN-->"
    local proxied_addr="$1"
    local opts="client --remote=${wss_url} --token=${token}"
 
    if ! type inlets &> /dev/null; then
        printf "\n\n%b\n\n\t%b\n\n" "${bold}${bright}inlets${reset} ${warn}is not installed , install it with${reset}" \
                                    "${info}curl -sLS https://get.inlets.dev | sudo sh${reset}"
    else
        if [[ $# -ne 1 ]]; then
            printf "\n\n\t%b\n\n" "${bold}${error}Error:${reset} ${error}You need to provide exactly one argument${reset}"
            printf "%b\n\n" "${helpmsg}"
        elif [[ $1 == "-h" ]] || [[ $1 == "--help" ]]; then
            printf "\n\t%b\n\n" "${bright}${FUNCNAME[0]}${reset} — Create a dynamic externally accesible url (reverse proxy)"
            printf "%b\n\n" "${helpmsg}"
        else
            local sre='.+Upstream:\s([a-z0-9]+\.[a-z0-9]+\.[a-z0-9]{2,3})\s+=>\s+(.+)'
            local srpl='\n\nHTTP  Proxy URL:\thttp://\1 \nHTTPS Proxy URL:\thttps://\1\nProxied Service:\t\2'
            local quitxt=$(printf "${info}Press Ctrl+C to quit${reset}")
            inlets ${opts} --upstream="${proxy_addr}"="${proxied_addr}" |& \
            sed -nr "s#${sre}#${srpl}\n\n${quitxt}#p"
        fi
 
    fi
}