up n_m

node_modules/react-loadable-ssr-addon-v5-slorber/source/utils/computeIntegrity.js

@@ -0,0 +1,29 @@
+/**
+ * react-loadable-ssr-addon
+ * @author Marcos Gonçalves <contact@themgoncalves.com>
+ * @version 1.0.1
+ */
+
+import crypto from 'crypto';
+
+/**
+ * Compute SRI Integrity
+ * @func computeIntegrity
+ * See {@link https://developer.mozilla.org/en-US/docs/Web/Security/Subresource_Integrity Subresource Integrity} at MDN
+ * @param  {array} algorithms - The algorithms you want to use when hashing `content`
+ * @param  {string} source - File contents you want to hash
+ * @return {string} SRI hash
+ */
+function computeIntegrity(algorithms, source) {
+  return Array.isArray(algorithms)
+    ? algorithms.map((algorithm) => {
+      const hash = crypto
+        .createHash(algorithm)
+        .update(source, 'utf8')
+        .digest('base64');
+      return `${algorithm}-${hash}`;
+    }).join(' ')
+    : '';
+}
+
+export default computeIntegrity;