refactor

README.md

@@ -63,24 +63,21 @@ See https://ipfs.github.io/js-ipfs-bitswap
 ```sh
 » tree src
 src
-├── components
-│   ├── decision
-│   │   ├── engine.js
-│   │   ├── index.js
-│   │   └── ledger.js
-│   ├── network             # Handles peerSet and open new conns
-│   │   └── index.js
-│   └── want-manager        # Keeps track of all blocks the peer wants (not the others which it is connected)
-│       ├── index.js
-│       └── msg-queue.js    # Messages to send queue, one per peer
 ├── constants.js
+├── decision-engine
+│   ├── index.js
+│   └── ledger.js
 ├── index.js
-└── types
-    ├── message             # (Type) message that is put in the wire
+├── network.js             # Handles peerSet and open new conns
+├─── want-manager          # Keeps track of all blocks the peer (self) wants
+│   ├── index.js
+│   └── msg-queue.js       # Messages to send queue, one per peer
+└─── types
+    ├── message            # (Type) message that is put in the wire
     │   ├── entry.js
     │   ├── index.js
     │   └── message.proto.js
-    └── wantlist            # (Type) track wanted blocks
+    └── wantlist           # (Type) track wanted blocks
         ├── entry.js
         └── index.js
 ```

package.json

@@ -4,7 +4,7 @@
   "description": "Node.js implementation of the Bitswap data exchange protocol used by IPFS",
   "main": "src/index.js",
   "browser": {
-    "./test/libp2p-bundle": false
+    "./test/utils/libp2p-bundle": false
   },
   "scripts": {
     "test": "aegir-test --dom",
@@ -75,6 +75,7 @@
     "pull-length-prefixed": "^1.3.0",
     "pull-pushable": "^2.1.1",
     "pull-stream": "^3.6.0",
+    "safe-buffer": "^5.1.1",
     "varint-decoder": "^0.1.1"
   },
   "contributors": [

src/components/decision-engine/index.js → src/decision-engine/index.js

@@ -15,8 +15,8 @@ const pullAllWith = require('lodash.pullallwith')
 const log = debug('bitswap:engine')
 log.error = debug('bitswap:engine:error')
 
-const Message = require('../../types/message')
-const Wantlist = require('../../types/wantlist')
+const Message = require('../types/message')
+const Wantlist = require('../types/wantlist')
 const Ledger = require('./ledger')
 
 const MAX_MESSAGE_SIZE = 512 * 1024

src/components/decision-engine/ledger.js → src/decision-engine/ledger.js

@@ -1,6 +1,6 @@
 'use strict'
 
-const Wantlist = require('../../types/wantlist')
+const Wantlist = require('../types/wantlist')
 
 class Ledger {
   constructor (peerId) {

src/index.js

@@ -10,9 +10,9 @@ const map = require('async/map')
 const once = require('once')
 
 const CONSTANTS = require('./constants')
-const WantManager = require('./components/want-manager')
-const Network = require('./components/network')
-const DecisionEngine = require('./components/decision-engine')
+const WantManager = require('./want-manager')
+const Network = require('./network')
+const DecisionEngine = require('./decision-engine')
 
 const log = debug('bitswap')
 log.error = debug('bitswap:error')

src/components/network.js → src/network.js

@@ -5,8 +5,8 @@ const pull = require('pull-stream')
 const waterfall = require('async/waterfall')
 const each = require('async/each')
 
-const Message = require('../types/message')
-const CONSTANTS = require('../constants')
+const Message = require('./types/message')
+const CONSTANTS = require('./constants')
 const debug = require('debug')
 const log = debug('bitswap:network')
 log.error = debug('bitswap:network:error')

src/components/want-manager/index.js → src/want-manager/index.js

@@ -2,9 +2,9 @@
 
 const debug = require('debug')
 
-const Message = require('../../types/message')
-const Wantlist = require('../../types/wantlist')
-const CONSTANTS = require('../../constants')
+const Message = require('../types/message')
+const Wantlist = require('../types/wantlist')
+const CONSTANTS = require('../constants')
 const MsgQueue = require('./msg-queue')
 
 const log = debug('bitswap:wantmanager')

src/components/want-manager/msg-queue.js → src/want-manager/msg-queue.js

@@ -2,7 +2,7 @@
 
 const debug = require('debug')
 const debounce = require('lodash.debounce')
-const Message = require('../../types/message')
+const Message = require('../types/message')
 
 const log = debug('bitswap:wantmanager:queue')
 log.error = debug('bitswap:wantmanager:queue:error')

test/index-test.js → test/bitswap.js

@@ -18,8 +18,10 @@ const PeerBook = require('peer-book')
 const Message = require('../src/types/message')
 const Bitswap = require('../src')
 
-const utils = require('./utils')
-const makeBlock = utils.makeBlock
+const mockNetwork = require('./utils/mock-network').mockNetwork
+const applyNetwork = require('./utils/mock-network').applyNetwork
+
+const makeBlock = require('./utils/make-block')
 
 function hasBlocks (msg, store, cb) {
   each(msg.blocks.values(), (b, cb) => {
@@ -256,7 +258,7 @@ module.exports = (repo) => {
       it('block is added locally afterwards', (done) => {
         const block = blocks[9]
         const bs = new Bitswap(createLibp2pMock(), store)
-        const net = utils.mockNetwork()
+        const net = mockNetwork()
 
         bs.network = net
         bs.wm.network = net
@@ -328,7 +330,7 @@ module.exports = (repo) => {
           }
         }
         bs1 = new Bitswap(libp2pMock, store)
-        utils.applyNetwork(bs1, n1)
+        applyNetwork(bs1, n1)
         bs1.start()
 
         let store2
@@ -338,7 +340,7 @@ module.exports = (repo) => {
           (repo, cb) => {
             store2 = repo.blocks
             bs2 = new Bitswap(createLibp2pMock(), store2)
-            utils.applyNetwork(bs2, n2)
+            applyNetwork(bs2, n2)
             bs2.start()
             bs1._onPeerConnected(other)
             bs2._onPeerConnected(me)

test/browser.js

@@ -41,5 +41,5 @@ const repo = {
   remove: removeRepos
 }
 
-require('./index-test')(repo)
-require('./components/decision-engine/index-test')(repo)
+require('./bitswap.js')(repo)
+require('./decision-engine/decision-engine')(repo)

test/components/decision-engine/index-test.js → test/decision-engine/decision-engine.js

@@ -16,11 +16,12 @@ const waterfall = require('async/waterfall')
 const eachSeries = require('async/eachSeries')
 const CID = require('cids')
 const multihashing = require('multihashing-async')
+const Buffer = require('safe-buffer').Buffer
 
-const Message = require('../../../src/types/message')
-const DecisionEngine = require('../../../src/components/decision-engine')
+const Message = require('../../src/types/message')
+const DecisionEngine = require('../../src/decision-engine')
 
-const mockNetwork = require('../../utils').mockNetwork
+const mockNetwork = require('../utils/mock-network').mockNetwork
 
 function messageToString (m) {
   return Array.from(m[1].blocks.values())
@@ -64,7 +65,7 @@ module.exports = (repo) => {
         const receiver = res[1]
 
         map(_.range(1000), (i, cb) => {
-          const data = new Buffer(`this is message ${i}`)
+          const data = Buffer.from(`this is message ${i}`)
           multihashing(data, 'sha2-256', (err, hash) => {
             expect(err).to.not.exist()
 
@@ -132,7 +133,7 @@ module.exports = (repo) => {
       function partnerWants (dEngine, values, partner, cb) {
         const message = new Message(false)
 
-        map(values, (v, cb) => multihashing(new Buffer(v), 'sha2-256', cb), (err, hashes) => {
+        map(values, (v, cb) => multihashing(Buffer.from(v), 'sha2-256', cb), (err, hashes) => {
           expect(err).to.not.exist()
           hashes.forEach((hash, i) => {
             message.addEntry(new CID(hash), Math.pow(2, 32) - 1 - i)
@@ -145,7 +146,7 @@ module.exports = (repo) => {
       function partnerCancels (dEngine, values, partner, cb) {
         const message = new Message(false)
 
-        map(values, (v, cb) => multihashing(new Buffer(v), 'sha2-256', cb), (err, hashes) => {
+        map(values, (v, cb) => multihashing(Buffer.from(v), 'sha2-256', cb), (err, hashes) => {
           expect(err).to.not.exist()
           hashes.forEach((hash) => {
             message.cancel(new CID(hash))
@@ -160,12 +161,12 @@ module.exports = (repo) => {
         waterfall([
           (cb) => map(
             alphabet,
-            (v, cb) => multihashing(new Buffer(v), 'sha2-256', cb),
+            (v, cb) => multihashing(Buffer.from(v), 'sha2-256', cb),
             cb
           ),
           (hashes, cb) => each(
             hashes.map((h, i) => {
-              return new Block(new Buffer(alphabet[i]), new CID(h))
+              return new Block(Buffer.from(alphabet[i]), new CID(h))
             }),
             (b, cb) => repo.blocks.put(b, cb),
             cb
@@ -211,7 +212,7 @@ module.exports = (repo) => {
 
     it('splits large block messages', (done) => {
       const data = _.range(10).map((i) => {
-        const b = new Buffer(1024 * 256)
+        const b = Buffer.alloc(1024 * 256)
         b.fill(i)
         return b
       })

test/components/decision-engine/ledger.spec.js → test/decision-engine/ledger.spec.js

@@ -6,7 +6,7 @@ chai.use(require('dirty-chai'))
 const expect = chai.expect
 const PeerId = require('peer-id')
 
-const Ledger = require('../../../src/components/decision-engine/ledger')
+const Ledger = require('../../src/decision-engine/ledger')
 
 describe('Ledger', () => {
   let peerId

test/components/network/gen-bitswap-network.node.js → test/network/gen-bitswap-network.node.js

@@ -16,14 +16,14 @@ const crypto = require('crypto')
 const CID = require('cids')
 const multihashing = require('multihashing-async')
 
-const utils = require('../../utils')
+const genBitswapNetwork = require('../utils/mock-network').genBitswapNetwork
 
 describe('gen Bitswap network', function () {
   // CI is very slow
   this.timeout(300 * 1000)
 
   it('retrieves local blocks', (done) => {
-    utils.genBitswapNetwork(1, (err, nodes) => {
+    genBitswapNetwork(1, (err, nodes) => {
       expect(err).to.not.exist()
 
       const node = nodes[0]
@@ -66,7 +66,7 @@ describe('gen Bitswap network', function () {
   describe('distributed blocks', () => {
     it('with 2 nodes', (done) => {
       const n = 2
-      utils.genBitswapNetwork(n, (err, nodeArr) => {
+      genBitswapNetwork(n, (err, nodeArr) => {
         expect(err).to.not.exist()
         nodeArr.forEach((node) => {
           expect(

test/components/network/network.node.js → test/network/network.node.js

@@ -4,7 +4,7 @@
 const chai = require('chai')
 chai.use(require('dirty-chai'))
 const expect = chai.expect
-const Node = require('../../libp2p-bundle')
+const Node = require('../utils/libp2p-bundle')
 const PeerInfo = require('peer-info')
 const PeerId = require('peer-id')
 const lp = require('pull-length-prefixed')
@@ -13,11 +13,12 @@ const parallel = require('async/parallel')
 const waterfall = require('async/waterfall')
 const map = require('async/map')
 const _ = require('lodash')
-const utils = require('../../utils')
+const makeBlock = require('../utils/make-block')
 
-const Network = require('../../../src/components/network')
-const Message = require('../../../src/types/message')
+const Network = require('../../src/network')
+const Message = require('../../src/types/message')
 
+// TODO send this to utils
 function createP2PNode (multiaddrs, options, callback) {
   if (typeof options === 'function') {
     callback = options
@@ -59,7 +60,7 @@ describe('network', () => {
       (cb) => createP2PNode('/ip4/127.0.0.1/tcp/0', { bits: 1024 }, cb),
       (cb) => createP2PNode('/ip4/127.0.0.1/tcp/0', { bits: 1024 }, cb),
       (cb) => createP2PNode('/ip4/127.0.0.1/tcp/0', { bits: 1024 }, cb),
-      (cb) => map(_.range(2), (i, cb) => utils.makeBlock(cb), cb)
+      (cb) => map(_.range(2), (i, cb) => makeBlock(cb), cb)
     ], (err, results) => {
       expect(err).to.not.exist()
 

test/node.js

@@ -41,7 +41,7 @@ const repo = {
   remove: removeRepos
 }
 
-require('./index-test')(repo)
-require('./components/decision-engine/index-test')(repo)
-require('./components/network/network.node.js')
-require('./components/network/gen-bitswap-network.node.js')
+require('./bitswap.js')(repo)
+require('./decision-engine/decision-engine')(repo)
+require('./network/network.node.js')
+require('./network/gen-bitswap-network.node.js')

test/types/message.spec.js

@@ -10,7 +10,7 @@ const map = require('async/map')
 const CID = require('cids')
 const isNode = require('detect-node')
 const _ = require('lodash')
-
+const Buffer = require('safe-buffer').Buffer
 const loadFixture = require('aegir/fixtures')
 const testDataPath = (isNode ? '../' : '') + 'test-data/serialized-from-go'
 const rawMessageFullWantlist = loadFixture(__dirname, testDataPath + '/bitswap110-message-full-wantlist')
@@ -19,14 +19,14 @@ const rawMessageOneBlock = loadFixture(__dirname, testDataPath + '/bitswap110-me
 const pbm = protobuf(require('../../src/types/message/message.proto'))
 
 const BitswapMessage = require('../../src/types/message')
-const utils = require('../utils')
+const makeBlock = require('../utils/make-block')
 
 describe('BitswapMessage', () => {
   let blocks
   let cids
 
   before((done) => {
-    map(_.range(3), (i, cb) => utils.makeBlock(cb), (err, res) => {
+    map(_.range(3), (i, cb) => makeBlock(cb), (err, res) => {
       expect(err).to.not.exist()
       blocks = res
       cids = blocks.map((b) => b.cid)
@@ -243,7 +243,7 @@ describe('BitswapMessage', () => {
 
   describe('go interop', () => {
     it('bitswap 1.0.0 message', (done) => {
-      const goEncoded = new Buffer('CioKKAoiEiAs8k26X7CjDiboOyrFueKeGxYeXB+nQl5zBDNik4uYJBAKGAA=', 'base64')
+      const goEncoded = Buffer.from('CioKKAoiEiAs8k26X7CjDiboOyrFueKeGxYeXB+nQl5zBDNik4uYJBAKGAA=', 'base64')
 
       const msg = new BitswapMessage(false)
       const cid = new CID('QmRN6wdp1S2A5EtjW9A3M1vKSBuQQGcgvuhoMUoEz4iiT5')

test/types/wantlist.spec.js

@@ -10,14 +10,14 @@ const _ = require('lodash')
 const multihashing = require('multihashing-async')
 
 const Wantlist = require('../../src/types/wantlist')
-const utils = require('../utils')
+const makeBlock = require('../utils/make-block')
 
 describe('Wantlist', () => {
   let wm
   let blocks
 
   before((done) => {
-    map(_.range(2), (i, cb) => utils.makeBlock(cb), (err, res) => {
+    map(_.range(2), (i, cb) => makeBlock(cb), (err, res) => {
       expect(err).to.not.exist()
       blocks = res
       done()

test/utils/make-block.js

@@ -0,0 +1,15 @@
+'use strict'
+
+const multihashing = require('multihashing-async')
+const CID = require('cids')
+const Block = require('ipfs-block')
+const Buffer = require('safe-buffer').Buffer
+
+module.exports = (callback) => {
+  const data = Buffer.from(`hello world ${Math.random()}`)
+
+  multihashing(data, 'sha2-256', (err, hash) => {
+    if (err) { return callback(err) }
+    callback(null, new Block(data, new CID(hash)))
+  })
+}