Website Structure

Frontend-Learner/node_modules/svgo/plugins/removeScripts.js

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+import { attrsGroups } from './_collections.js';
+import { detachNodeFromParent } from '../lib/xast.js';
+
+export const name = 'removeScripts';
+export const description = 'removes scripts (disabled by default)';
+
+/** Union of all event attributes. */
+const eventAttrs = [
+  ...attrsGroups.animationEvent,
+  ...attrsGroups.documentEvent,
+  ...attrsGroups.documentElementEvent,
+  ...attrsGroups.globalEvent,
+  ...attrsGroups.graphicalEvent,
+];
+
+/**
+ * Remove scripts.
+ *
+ * https://www.w3.org/TR/SVG11/script.html
+ *
+ * @author Patrick Klingemann
+ * @type {import('../lib/types.js').Plugin}
+ */
+export const fn = () => {
+  return {
+    element: {
+      enter: (node, parentNode) => {
+        if (node.name === 'script') {
+          detachNodeFromParent(node, parentNode);
+          return;
+        }
+
+        for (const attr of eventAttrs) {
+          if (node.attributes[attr] != null) {
+            delete node.attributes[attr];
+          }
+        }
+      },
+      exit: (node, parentNode) => {
+        if (node.name !== 'a') {
+          return;
+        }
+
+        for (const attr of Object.keys(node.attributes)) {
+          if (attr === 'href' || attr.endsWith(':href')) {
+            if (
+              node.attributes[attr] == null ||
+              !node.attributes[attr].trimStart().startsWith('javascript:')
+            ) {
+              continue;
+            }
+
+            const index = parentNode.children.indexOf(node);
+            const usefulChildren = node.children.filter(
+              (child) => child.type !== 'text',
+            );
+            parentNode.children.splice(index, 1, ...usefulChildren);
+          }
+        }
+      },
+    },
+  };
+};