main repo

node_modules/jose/dist/node/esm/lib/validate_crit.js

@@ -0,0 +1,34 @@
+import { JOSENotSupported } from '../util/errors.js';
+function validateCrit(Err, recognizedDefault, recognizedOption, protectedHeader, joseHeader) {
+    if (joseHeader.crit !== undefined && protectedHeader.crit === undefined) {
+        throw new Err('"crit" (Critical) Header Parameter MUST be integrity protected');
+    }
+    if (!protectedHeader || protectedHeader.crit === undefined) {
+        return new Set();
+    }
+    if (!Array.isArray(protectedHeader.crit) ||
+        protectedHeader.crit.length === 0 ||
+        protectedHeader.crit.some((input) => typeof input !== 'string' || input.length === 0)) {
+        throw new Err('"crit" (Critical) Header Parameter MUST be an array of non-empty strings when present');
+    }
+    let recognized;
+    if (recognizedOption !== undefined) {
+        recognized = new Map([...Object.entries(recognizedOption), ...recognizedDefault.entries()]);
+    }
+    else {
+        recognized = recognizedDefault;
+    }
+    for (const parameter of protectedHeader.crit) {
+        if (!recognized.has(parameter)) {
+            throw new JOSENotSupported(`Extension Header Parameter "${parameter}" is not recognized`);
+        }
+        if (joseHeader[parameter] === undefined) {
+            throw new Err(`Extension Header Parameter "${parameter}" is missing`);
+        }
+        else if (recognized.get(parameter) && protectedHeader[parameter] === undefined) {
+            throw new Err(`Extension Header Parameter "${parameter}" MUST be integrity protected`);
+        }
+    }
+    return new Set(protectedHeader.crit);
+}
+export default validateCrit;