feat!: use custom DNS resolver in @helia/ipns for DNSLink (#466)

Uses the `.dns` property from #465 to resolve DNS `TXT` records.

This allows configuring discrete resolvers for different TLDs, unifies caching across different use of DNS (e.g. dnsaddr multiaddrs), etc.

Refs: ipfs/helia-verified-fetch#13 (comment)
Fixes: #369

BREAKING CHANGE: requires @helia/[email protected] or later, `resolveDns` has been renamed `resolveDNSLink`

packages/interop/src/ipns-dnslink.spec.ts

@@ -0,0 +1,45 @@
+/* eslint-env mocha */
+
+import { ipns } from '@helia/ipns'
+import { expect } from 'aegir/chai'
+import { createHeliaNode } from './fixtures/create-helia.js'
+import type { IPNS } from '@helia/ipns'
+import type { HeliaLibp2p } from 'helia'
+
+const TEST_DOMAINS: string[] = [
+  'ipfs.io',
+  'docs.ipfs.tech',
+  'en.wikipedia-on-ipfs.org',
+  'blog.libp2p.io',
+  'consensuslab.world',
+  'n0.computer',
+  'protocol.ai',
+  'research.protocol.ai',
+  'probelab.io',
+  'singularity.storage',
+  'saturn.tech'
+]
+
+describe('@helia/ipns - dnslink', () => {
+  let helia: HeliaLibp2p
+  let name: IPNS
+
+  beforeEach(async () => {
+    helia = await createHeliaNode()
+    name = ipns(helia)
+  })
+
+  afterEach(async () => {
+    if (helia != null) {
+      await helia.stop()
+    }
+  })
+
+  TEST_DOMAINS.forEach(domain => {
+    it(`should resolve ${domain}`, async () => {
+      const result = await name.resolveDNSLink(domain)
+
+      expect(result).to.have.property('cid')
+    })
+  })
+})

packages/ipns/package.json

@@ -169,13 +169,10 @@
     "@libp2p/kad-dht": "^12.0.8",
     "@libp2p/logger": "^4.0.7",
     "@libp2p/peer-id": "^4.0.7",
-    "dns-over-http-resolver": "^3.0.2",
-    "dns-packet": "^5.6.1",
-    "hashlru": "^2.3.0",
+    "@multiformats/dns": "^1.0.1",
     "interface-datastore": "^8.2.11",
     "ipns": "^9.0.0",
     "multiformats": "^13.1.0",
-    "p-queue": "^8.0.1",
     "progress-events": "^1.0.0",
     "uint8arrays": "^5.0.2"
   },