feat: establish standalone Device Core repository

services/device-control-core/src/credential-reference.mjs

@@ -0,0 +1,29 @@
+export const NDC_CREDENTIAL_REFERENCE_OWNER = "ndc_l2_credentials";
+
+const CREDENTIAL_REFERENCE_PATTERN =
+  /^ndc-credref:[A-Za-z0-9][A-Za-z0-9._:-]{7,240}$/;
+
+export function normalizeNdcCredentialReference(input) {
+  if (!input || typeof input !== "object" || Array.isArray(input)) {
+    throw new TypeError("ndc_credential_reference_invalid");
+  }
+  for (const key of Object.keys(input)) {
+    if (!new Set(["owner", "reference"]).has(key)) {
+      throw new TypeError(`ndc_credential_reference_field_unexpected:${key}`);
+    }
+  }
+  if (input.owner !== NDC_CREDENTIAL_REFERENCE_OWNER) {
+    throw new TypeError("ndc_credential_reference_owner_invalid");
+  }
+  if (!isNdcCredentialReferenceValue(input.reference)) {
+    throw new TypeError("ndc_credential_reference_value_invalid");
+  }
+  return Object.freeze({
+    owner: NDC_CREDENTIAL_REFERENCE_OWNER,
+    reference: input.reference,
+  });
+}
+
+export function isNdcCredentialReferenceValue(value) {
+  return typeof value === "string" && CREDENTIAL_REFERENCE_PATTERN.test(value);
+}