hugo-theme/layouts/shortcodes/protected-email.html

{{ $email := .Get 0 }}
{{ $parts := split $email "@" }}
{{ $name := index $parts 0 | base64Encode }}
{{ $domainParts := split (index $parts 1) "." }}
{{ $domain := delimit (first (sub (len $domainParts) 1) $domainParts) "." | base64Encode }}
{{ $tld := index $domainParts (sub (len $domainParts) 1) | base64Encode }}

<a href="#" class="protected-email" 
   data-name="{{ $name }}"
   data-domain="{{ $domain }}"
   data-tld="{{ $tld }}"
   onclick="decodeEmail(this);return false;">
   {{ T "email_protection" }}
</a>

{{ if not (.Page.Scratch.Get "protectedEmailJS") }}
{{ $.Page.Scratch.Set "recaptchaLoaded" true }}
<script>
function decodeEmail(element) {
    const name = atob(element.getAttribute('data-name'));
    const domain = atob(element.getAttribute('data-domain'));
    const tld = atob(element.getAttribute('data-tld'));
    
    const email = name + '@' + domain + '.' + tld;
    element.href = 'mailto:' + email;
    element.textContent = email;
    
    // Remove the onclick attribute to prevent further obfuscation
    element.onclick = null;
}

// Initialize all protected email links
document.addEventListener('DOMContentLoaded', function() {
    document.querySelectorAll('.protected-email').forEach(function(link) {
        link.style.cursor = 'pointer';
    });
});
</script>
{{ end }}