Implement grindname, getproof, and getresource

Author: wi-ski

lib/node/http.js

@@ -22,6 +22,7 @@ const Address = require('../primitives/address');
 const Network = require('../protocol/network');
 const pkg = require('../pkg');
 const rules = require('../covenants/rules');
+const Resource = require('../dns/resource');
 
 /**
  * HTTP
@@ -421,7 +422,7 @@ class HTTP extends Server {
       const hash = valid.bhash('hash');
 
       if (!hash)
-        throw new Error('Invalid parameter.');
+        throw new Error('Invalid hash.');
 
       const ns = await this.chain.db.getNameState(hash);
 
@@ -430,6 +431,62 @@ class HTTP extends Server {
 
       return res.json(200, { name: ns.name.toString('binary') });
     });
+
+    this.get('/resource/name/:name', async (req, res) => {
+      const valid = Validator.fromRequest(req);
+      const name = valid.str('name');
+
+      if (!name || !rules.verifyName(name))
+        throw new Error('Invalid name.');
+
+      const nameHash = rules.hashName(name);
+      const ns = await this.chain.db.getNameState(nameHash);
+
+      if (!ns || ns.data.length === 0)
+        return null;
+
+      const resource = Resource.decode(ns.data);
+
+      return res.json(200, resource.toJSON());
+    });
+
+    this.get('/proof/name/:name', async (req, res) => {
+      const valid = Validator.fromRequest(req);
+      const name = valid.str('name');
+
+      if (!name || !rules.verifyName(name))
+        throw new Error('Invalid name.');
+
+      const hash = this.chain.tip.hash;
+      const height = this.chain.tip.height;
+      const root = this.chain.tip.treeRoot;
+      const key = rules.hashName(name);
+      const proof = await this.chain.db.prove(root, key);
+
+      return res.json(200, {
+        hash: hash.toString('hex'),
+        height: height,
+        root: root.toString('hex'),
+        name: name,
+        key: key.toString('hex'),
+        proof: proof.toJSON()
+      });
+    });
+
+    this.get('/grind', async (req, res) => {
+      const valid = Validator.fromRequest(req);
+      const size = valid.u32('size');
+
+      if (size < 1 || size > 63)
+        throw new Error('Invalid length.');
+
+      const network = this.network;
+      const height = this.chain.height;
+
+      const name = await rules.grindName(size, height + 1, network);
+
+      res.json(200, { name });
+    });
   }
 
   /**

package.json

@@ -48,7 +48,7 @@
     "bval": "~0.1.6",
     "bweb": "~0.1.8",
     "goosig": "~0.1.0",
-    "hs-client": "file:/run/media/wiski/549A5F9E28D6FB4C/hs-client",
+    "hs-client": "~0.0.6",
     "mrmr": "~0.1.8",
     "n64": "~0.2.9",
     "urkel": "~0.6.3"

test/node-http-test.js

@@ -4,16 +4,8 @@
 'use strict';
 
 const assert = require('bsert');
-const consensus = require('../lib/protocol/consensus');
 const Network = require('../lib/protocol/network');
-const Coin = require('../lib/primitives/coin');
-const Script = require('../lib/script/script');
-const Opcode = require('../lib/script/opcode');
 const FullNode = require('../lib/node/fullnode');
-const Wallet = require('../lib/wallet/wallet');
-const MTX = require('../lib/primitives/mtx');
-const TX = require('../lib/primitives/tx');
-const Address = require('../lib/primitives/address');
 const rules = require('../lib/covenants/rules');
 const network = Network.get('regtest');
 
@@ -151,4 +143,77 @@ describe('Node http', function() {
       });
     });
   });
+
+  describe('getNameResource', () => {
+    const zonefile = { compat: false, version: 0, ttl: 172800, ns: ['[email protected]'] };
+    it('It should return null when an auction has not been initiated', async () => {
+      const resource = await nclient.getNameResource(NAME0);
+      assert.equal(resource, null);
+    });
+
+    describe('When an auction has been initiated', () => {
+      beforeEach(async () => {
+        await mineBlocks(250);
+        await wclient.execute('sendopen', [NAME0]);
+        // Question: We have to mine ~7 blocks here to get 'getauctioninfo' to work consistently. Will pass w. 4
+        await mineBlocks(7);
+        const { stats: { blocksUntilBidding } } = await wclient.execute('getauctioninfo', [NAME0]);
+        await mineBlocks(blocksUntilBidding);
+        const sendBid = await wclient.execute('sendbid', [NAME0, 12, 12]);
+        assert(sendBid);
+        const { stats: { blocksUntilReveal } } = await wclient.execute('getauctioninfo', [NAME0]);
+        // Question: We have to mine ~2 blocks here to get 'sendreveal' to work consistently. Will pass w. 1.
+        await mineBlocks(blocksUntilReveal + 2);
+        await wclient.execute('sendreveal', [NAME0]);
+        const { stats: { blocksUntilClose } } = await wclient.execute('getauctioninfo', [NAME0]);
+        await mineBlocks(blocksUntilClose);
+        await wclient.execute('sendupdate', [NAME0, zonefile]);
+        await mineBlocks(1);
+      });
+      it('It should return the resource', async () => {
+        const resource = await nclient.getNameResource(NAME0);
+        assert.deepEqual(resource, zonefile);
+      });
+    });
+  });
+
+  describe('getNameProof', () => {
+    it('It should return null when an auction has not been initiated', async () => {
+      const proof = await nclient.getNameProof(NAME0);
+      assert.equal(proof.proof.type, 'TYPE_DEADEND');
+      assert.equal(proof.name, NAME0);
+    });
+
+    describe('When an auction has been initiated', () => {
+      beforeEach(async () => {
+        await mineBlocks(250);
+        await wclient.execute('sendopen', [NAME0]);
+        // Question: We have to mine ~7 blocks here to get 'getauctioninfo' to work consistently. Will pass w. 4
+        await mineBlocks(7);
+        const { stats: { blocksUntilBidding } } = await wclient.execute('getauctioninfo', [NAME0]);
+        await mineBlocks(blocksUntilBidding);
+        const sendBid = await wclient.execute('sendbid', [NAME0, 12, 12]);
+        assert(sendBid);
+        const { stats: { blocksUntilReveal } } = await wclient.execute('getauctioninfo', [NAME0]);
+        // Question: We have to mine ~2 blocks here to get 'sendreveal' to work consistently. Will pass w. 1.
+        await mineBlocks(blocksUntilReveal + 2);
+        await wclient.execute('sendreveal', [NAME0]);
+        const { stats: { blocksUntilClose } } = await wclient.execute('getauctioninfo', [NAME0]);
+        await mineBlocks(blocksUntilClose);
+        await wclient.execute('sendupdate', [NAME0, { compat: false, version: 0, ttl: 172800, ns: ['[email protected]'] }]);
+        await mineBlocks(1);
+      });
+      it('It should return the name\'s proof', async () => {
+        const proof = await nclient.getNameProof(NAME0);
+        assert.equal(proof.proof.type, 'TYPE_EXISTS');
+        assert.equal(proof.name, NAME0);
+      });
+    });
+  });
+  describe('grindName', () => {
+    it('It should grind a name', async () => {
+      const { name } = await nclient.grindName(10);
+      assert(name);
+    });
+  });
 });