Add: js script for external link confirmation

archivist/static/js/confirm_external_links.js

@@ -0,0 +1,29 @@
+// static/js/confirm_external_links.js
+
+document.addEventListener("DOMContentLoaded", function () {
+    var externalLinks = document.querySelectorAll("a[href^='http']:not([href*='" + window.location.host + "'])");
+  
+    for (var i = 0; i < externalLinks.length; i++) {
+        externalLinks[i].addEventListener("click", function (event) {
+            event.preventDefault();
+            var confirmationModal = new bootstrap.Modal(document.getElementById('externalLinkConfirmationModal'), {
+                keyboard: false
+            });
+
+            var externalLink = document.getElementById('externalLink');
+            var externalLinkShow = document.getElementById('externalLinkShow');
+            var originalLink = this.href;
+  
+            externalLink.setAttribute('href', originalLink);
+  
+            externalLinkShow.innerText = "URL: " + this.href;
+
+            confirmationModal.show();
+  
+            externalLink.addEventListener('click', function () {
+                confirmationModal.hide();
+                
+            });
+        });
+    }
+});