Add support for custom fetch function and/or IANA bootstrap data (#21)

src/whois/merge.test.ts

@@ -30,6 +30,7 @@ describe("WHOIS coalescing", () => {
     expect(chain.length).toBe(1);
 
     const [first] = chain;
+    if (!first) throw new Error("Expected first record");
     const base = normalizeWhois(
       "gitpod.io",
       "io",

src/whois/normalize.test.ts

@@ -11,7 +11,8 @@ Changed: 2020-01-02
 `;
   const rec = normalizeWhois("example.de", "de", text, "whois.denic.de");
   expect(rec.nameservers && rec.nameservers.length === 2).toBe(true);
-  expect(rec.nameservers?.[0].host).toBe("ns1.example.net");
+  expect(rec.nameservers).toBeDefined();
+  expect(rec.nameservers?.[0]?.host).toBe("ns1.example.net");
 });
 
 test("WHOIS .uk Nominet style", () => {

src/whois/normalize.ts

@@ -155,7 +155,12 @@ export function normalizeWhois(
     map.eppstatus || // .fr
     [];
   const statuses = statusLines.length
-    ? statusLines.map((line) => ({ status: line.split(/\s+/)[0], raw: line }))
+    ? statusLines
+        .map((line) => {
+          const status = line.split(/\s+/)[0];
+          return status ? { status, raw: line } : null;
+        })
+        .filter((s): s is { status: string; raw: string } => s !== null)
     : undefined;
 
   // Nameservers: also appear as "nserver" on some ccTLDs (.de, .ru) and as "name server"
@@ -219,8 +224,8 @@ export function normalizeWhois(
     : undefined;
 
   // Simple lock derivation from statuses
-  const transferLock = !!statuses?.some((s) =>
-    /transferprohibited/i.test(s.status),
+  const transferLock = !!statuses?.some(
+    (s) => s.status && /transferprohibited/i.test(s.status),
   );
 
   const record: DomainRecord = {

src/whois/referral.test.ts

@@ -40,6 +40,6 @@ describe("WHOIS referral contradiction handling", () => {
     expect(Array.isArray(chain)).toBe(true);
     // Mocked registrar is contradictory, so chain should contain only the TLD response
     expect(chain.length).toBe(1);
-    expect(chain[0].serverQueried).toBe("whois.nic.io");
+    expect(chain[0]?.serverQueried).toBe("whois.nic.io");
   });
 });