Sanitize/Un-sanitize URL/IP

san.ps1

# Sanitize/Un-sanitize a URL/IP - RishiK.

while (1) {
	if ($args[0]) {
		$url=$args[0]
	}
	else {
		$url = Read-Host "Enter URL/IP >>" 
	}

	$url=$url.Trim()
	if (!$url) { continue }

	if ($url -match '\[\.\]') {
		# Already sanitized
		
		$url=$url.replace('[.]','.') 
		$url=$url.replace('[:]',':')

		write-host "UN-SANITIZED > " -nonewline -Foregroundcolor Red
		write-host $url
	}
	else {
		# Needs to sanitize
		
		if ($url -match '\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}' -And $url -notmatch "[a-zA-Z]") {
			# Input is an IP
			$url=$url -replace "(.*)\.(.*)", '$1[.]$2'
		}
		else {
			$url=$url.replace('.','[.]') 
			$url=$url.replace('[[.]]','[.]') 
			$url=$url.replace(':','[:]')
			$url=$url.replace('[[:]]','[:]')
		}

		write-host "SANITIZED > " -nonewline -Foregroundcolor Green
		write-host $url
	}

	Set-Clipboard -Value $url # copy the URL/IP to the clipboard

	remove-variable url
	if ($args[0]) { break }
}

san.sh

#!/usr/bin/env bash

_san::un_sanitize() {
	local _url && _url="$*"
	_url=$( printf '%s\n' "${_url}" | sed 's/\[\.\]/\./g' | sed 's/\[:\]/:/g' )
	printf '%s\n\n' "${_url}"
}

_san::sanitize() {
	local _url && _url="$*"
	if [[ "${_url}" =~ ^(([1-9]?[0-9]|1[0-9][0-9]|2([0-4][0-9]|5[0-5]))\.){3}([1-9]?[0-9]|1[0-9][0-9]|2([0-4][0-9]|5[0-5]))$ ]] || \
	 [[ "${_url}" =~ ^(([1-9]?[0-9]|1[0-9][0-9]|2([0-4][0-9]|5[0-5]))\.){3}([1-9]?[0-9]|1[0-9][0-9]|2([0-4][0-9]|5[0-5]))\/([0-9]|[12][0-9]|3[012])$ ]]; then
		# It's an IP Address
		_url=$( printf '%s\n' "${_url}" | sed 's/\(.*\)\./\1\[\.\]/' )
	elif [[ "${_url}" = *"."* ]]; then
		# Could be a URL
		_url=$( printf '%s\n' "${_url}" | sed 's/\./[\.]/g' | sed 's/:/[:]/g' )
	else
		printf '%s\n\n' "ERROR: Doesn't seems to be a URL nor an IP address !!"
		return
	fi
	printf '%s\n\n' "${_url}"
}

while  true; do
	if [[ -z "$*" ]]; then
		# No parameters
		read -rp "URL/IP >> " _url
		if [[ "${_url}" = "exit" ]]; then 
			break
		elif [[ -z "${_url}" ]]; then
			continue
		fi
	else
		# Contains parameters
		_url="$*"
	fi

	if [[ "${_url}" = *"[.]"* || "${_url}" = *"[:]"* ]]; then
		# already sanitized
		_san::un_sanitize "${_url}"
	else 
		_san::sanitize "${_url}"
	fi

	unset _url
	[[ -n "$*" ]] && break
done