feat: add token based dialer

This commit is contained in:
Jacob Heun 2019-12-03 10:28:52 +01:00
parent 2329ef3ea3
commit e445a17278
14 changed files with 611 additions and 138 deletions

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@ -9,6 +9,7 @@
* As tokens are limited, DialRequests should be given a prioritized list of Multiaddrs to minimize the potential request time.
* Once a single Multiaddr Dial has succeeded, all pending dials in that Dial Request should be aborted. All tokens should be immediately released to the Dialer.
* If all Multiaddr Dials fail, or the DIAL_TIMEOUT max is reached for the entire DialRequest, all in progress dials for that DialRequest should be aborted. All tokens should immediately be released to the Dialer.
* If a Multiaddr Dial fails and there are no more dials to use its token, that token should be immediately released to the Dialer.
## Multiaddr Confidence

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@ -42,6 +42,7 @@
},
"dependencies": {
"abort-controller": "^3.0.0",
"aggregate-error": "^3.0.1",
"async": "^2.6.2",
"async-iterator-all": "^1.0.0",
"bignumber.js": "^9.0.0",
@ -67,6 +68,7 @@
"p-map": "^3.0.0",
"p-queue": "^6.1.1",
"p-settle": "^3.1.0",
"paramap-it": "^0.1.1",
"peer-id": "^0.13.4",
"peer-info": "^0.17.0",
"promisify-es6": "^1.0.3",

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@ -6,6 +6,7 @@ module.exports = {
DIAL_TIMEOUT: 30e3, // How long in ms a dial attempt is allowed to take
MAX_COLD_CALLS: 50, // How many dials w/o protocols that can be queued
MAX_PARALLEL_DIALS: 100, // Maximum allowed concurrent dials
PER_PEER_LIMIT: 4, // Allowed parallel dials per DialRequest
QUARTER_HOUR: 15 * 60e3,
PRIORITY_HIGH: 10,
PRIORITY_LOW: 20

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@ -1,19 +1,20 @@
'use strict'
const nextTick = require('async/nextTick')
const multiaddr = require('multiaddr')
const errCode = require('err-code')
const { default: PQueue } = require('p-queue')
const AbortController = require('abort-controller')
const delay = require('delay')
const debug = require('debug')
const log = debug('libp2p:dialer')
log.error = debug('libp2p:dialer:error')
const PeerId = require('peer-id')
const { DialRequest } = require('./dialer/dial-request')
const { anySignal } = require('./util')
const { codes } = require('./errors')
const {
DIAL_TIMEOUT,
MAX_PARALLEL_DIALS,
DIAL_TIMEOUT
PER_PEER_LIMIT
} = require('./constants')
class Dialer {
@ -29,74 +30,76 @@ class Dialer {
transportManager,
peerStore,
concurrency = MAX_PARALLEL_DIALS,
timeout = DIAL_TIMEOUT
timeout = DIAL_TIMEOUT,
perPeerLimit = PER_PEER_LIMIT
}) {
this.transportManager = transportManager
this.peerStore = peerStore
this.concurrency = concurrency
this.timeout = timeout
this.queue = new PQueue({ concurrency, timeout, throwOnTimeout: true })
this.perPeerLimit = perPeerLimit
this.tokens = [...new Array(concurrency)].map((_, index) => index)
/**
* @property {IdentifyService}
*/
this._identifyService = null
}
set identifyService (service) {
this._identifyService = service
}
/**
* @type {IdentifyService}
*/
get identifyService () {
return this._identifyService
this.releaseToken = this.releaseToken.bind(this)
}
/**
* Connects to a given `Multiaddr`. `addr` should include the id of the peer being
* dialed, it will be used for encryption verification.
*
* @async
* @param {Multiaddr} addr The address to dial
* @param {object} [options]
* @param {AbortSignal} [options.signal] An AbortController signal
* @returns {Promise<Connection>}
*/
async connectToMultiaddr (addr, options = {}) {
connectToMultiaddr (addr, options = {}) {
addr = multiaddr(addr)
let conn
let controller
if (!options.signal) {
controller = new AbortController()
options.signal = controller.signal
return this.connectToMultiaddrs([addr], options)
}
/**
* Connects to the first success of a given list of `Multiaddr`. `addrs` should
* include the id of the peer being dialed, it will be used for encryption verification.
*
* @param {Array<Multiaddr>} addrs
* @param {object} [options]
* @param {AbortSignal} [options.signal] An AbortController signal
* @returns {Promise<Connection>}
*/
async connectToMultiaddrs (addrs, options = {}) {
const dialAction = (addr, options) => this.transportManager.dial(addr, options)
const dialRequest = new DialRequest({
addrs,
dialAction,
dialer: this
})
// Combine the timeout signal and options.signal, if provided
const timeoutController = new AbortController()
const signals = [timeoutController.signal]
options.signal && signals.push(options.signal)
const signal = anySignal(signals)
const timeoutPromise = delay.reject(this.timeout, {
value: errCode(new Error('Dial timed out'), codes.ERR_TIMEOUT)
})
try {
conn = await this.queue.add(() => this.transportManager.dial(addr, options))
} catch (err) {
if (err.name === 'TimeoutError') {
controller.abort()
err.code = codes.ERR_TIMEOUT
}
log.error('Error dialing address %s,', addr, err)
throw err
}
// Perform a delayed Identify handshake
if (this.identifyService) {
nextTick(async () => {
try {
await this.identifyService.identify(conn, conn.remotePeer)
// Race the dial request and the timeout
const dialResult = await Promise.race([
dialRequest.run({
...options,
signal
}),
timeoutPromise
])
timeoutPromise.clear()
return dialResult
} catch (err) {
log.error(err)
timeoutController.abort()
throw err
}
})
}
return conn
}
/**
@ -104,31 +107,57 @@ class Dialer {
* The dial to the first address that is successfully able to upgrade a connection
* will be used.
*
* @async
* @param {PeerInfo|PeerId} peer The remote peer to dial
* @param {PeerId} peerId The remote peer id to dial
* @param {object} [options]
* @param {AbortSignal} [options.signal] An AbortController signal
* @returns {Promise<Connection>}
*/
async connectToPeer (peer, options = {}) {
if (PeerId.isPeerId(peer)) {
peer = this.peerStore.get(peer.toB58String())
connectToPeer (peerId, options = {}) {
const addrs = this.peerStore.multiaddrsForPeer(peerId)
// TODO: ensure the peer id is on the multiaddr
return this.connectToMultiaddrs(addrs, options)
}
const addrs = peer.multiaddrs.toArray()
for (const addr of addrs) {
try {
return await this.connectToMultiaddr(addr, options)
} catch (_) {
// The error is already logged, just move to the next addr
continue
}
getTokens (num) {
const total = Math.min(num, this.perPeerLimit, this.tokens.length)
const tokens = this.tokens.splice(0, total)
log('%d tokens request, returning %d, %d remaining', num, total, this.tokens.length)
return tokens
}
const err = errCode(new Error('Could not dial peer, all addresses failed'), codes.ERR_CONNECTION_FAILED)
log.error(err)
throw err
releaseToken (token) {
log('token %d released', token)
this.tokens.push(token)
}
}
module.exports = Dialer
// class ActionLimiter {
// constructor(actions, options = {}) {
// this.actions = actions
// this.limit = options.limit || 4
// this.controller = options.controller || new AbortController()
// }
// async abort () {
// this.controller.abort()
// }
// async run () {
// const limit = pLimit(this.limit)
// let result
// try {
// result = await pAny(this.actions.map(action => limit(action)))
// } catch (err) {
// console.log(err)
// if (!err.code) err.code = codes.ERR_CONNECTION_FAILED
// log.error(err)
// throw err
// } finally {
// console.log('RES', result)
// this.controller.abort()
// }
// return result
// }
// }

197
src/dialer/dial-request.js Normal file
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@ -0,0 +1,197 @@
'use strict'
const AbortController = require('abort-controller')
const AggregateError = require('aggregate-error')
const pDefer = require('p-defer')
const debug = require('debug')
const log = debug('libp2p:dialer:request')
log.error = debug('libp2p:dialer:request:error')
const { AbortError } = require('libp2p-interfaces/src/transport/errors')
const { anySignal } = require('../util')
const { TokenHolder } = require('./token-holder')
class DialRequest {
/**
*
* @param {object} options
* @param {Multiaddr[]} options.addrs
* @param {TransportManager} options.transportManager
* @param {Dialer} options.dialer
*/
constructor ({
addrs,
dialAction,
dialer
}) {
this.addrs = addrs
this.dialer = dialer
this.dialAction = dialAction
}
/**
* @async
* @param {object} options
* @param {AbortSignal} options.signal An AbortController signal
* @param {number} options.timeout The max dial time for each request
* @returns {Connection}
*/
async run (options) {
// Determine how many tokens we need
const tokensWanted = Math.min(this.addrs.length, this.dialer.perPeerLimit)
// Get the tokens
const tokens = this.dialer.getTokens(tokensWanted)
// If no tokens are available, throw
if (tokens.length < 1) {
throw Object.assign(new Error('No dial tokens available'), { code: 'ERR_NO_DIAL_TOKENS' })
}
// For every token, run a multiaddr dial
// If there are tokens left, release them
// If there are multiaddrs left, wait for tokens to finish
const th = new TokenHolder(tokens, this.dialer.releaseToken)
// Create the dial functions
const dials = this.addrs.map(addr => {
return () => this._abortableDial(addr, options)
})
const dialResolver = new DialResolver()
while (dials.length > 0) {
if (dialResolver.finished) break
// Wait for the next available token
const token = await th.getToken()
const dial = dials.shift()
dialResolver.add(dial, () => th.releaseToken(token))
}
// Start giving back the tokens
th.drain()
// Flush all the dials to get the final response
return dialResolver.flush()
}
/**
* @private
* @param {Multiaddr} addr
* @param {object} options
* @param {AbortSignal} options.signal An AbortController signal
* @param {number} options.timeout The max dial time for each request
* @returns {{abort: function(), promise: Promise<Connection>}} An AbortableDial
*/
_abortableDial (addr, options) {
log('starting dial to %s', addr)
const controller = new AbortController()
const signals = [controller.signal]
options.signal && signals.push(options.signal)
const signal = anySignal([controller.signal, options.signal])
const promise = this.dialAction(addr, { signal, timeout: options.timeout })
return {
abort: () => controller.abort(),
promise
}
}
}
class DialResolver {
constructor () {
this.dials = new Set()
this.errors = []
this.finished = false
this.didFlush = false
this._waiting = null
}
/**
* Adds a dial function to the resolver. The function will be immediately
* executed and its resolution tracked.
* @async
* @param {function()} dial A function that returns an AbortableDial
* @param {function()} [finallyHandler] Called when the dial resolves or rejects
*/
async add (dial, finallyHandler) {
if (this.finished) return
const abortableDial = dial()
this.dials.add(abortableDial)
try {
this._onResolve(await abortableDial.promise)
} catch (err) {
this._onReject(err)
} finally {
this._onFinally(abortableDial)
finallyHandler && finallyHandler()
}
}
/**
* Called when a dial resolves
* @param {Connection} result
*/
_onResolve (result) {
this.result = result
}
/**
* Called when a dial rejects
* @param {Error} err
*/
_onReject (err) {
if (err.code === AbortError.code) return
this.errors.push(err)
}
_onFinally (dial) {
this.dials.delete(dial)
// If we have a result, or all dials have finished
if (this.result || (this._waiting && this.dials.size === 0)) {
this._onFinish()
}
}
/**
* Called when dialing is completed, which means one of:
* 1. One dial succeeded
* 2. All dials failed
* 3. All dials were aborted
* @private
*/
_onFinish () {
this.finished = true
// Abort all remaining dials
for (const abortableDial of this.dials) {
abortableDial.abort()
}
this.dials.clear()
// Flush must be called
if (!this._waiting) return
// If we have a result, or an abort occurred (no errors and no result)
if (this.result || this.errors.length === 0) {
this._waiting.resolve(this.result)
} else {
this._waiting.reject(new AggregateError(this.errors))
}
}
/**
* Flushes any remaining dials and resolves the first
* successful `Connection`. Flush should be called after all
* dials have been added.
* @returns {Promise<Connection>}
*/
flush () {
if (this.finished) {
if (this.result) {
return Promise.resolve(this.result)
} else {
return Promise.reject(new AggregateError(this.errors))
}
}
this._waiting = pDefer()
return this._waiting.promise
}
}
module.exports.DialResolver = DialResolver
module.exports.DialRequest = DialRequest

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@ -0,0 +1,63 @@
'use strict'
/**
* @class TokenHolder
* @example
* const th = new TokenHolder(tokens, dialer.releaseToken)
* for (const action of actions) {
* const token = await th.getToken()
* action(token).then(() => th.releaseToken(token))
* }
*
* await th.drain()
*/
class TokenHolder {
/**
* @param {Array<*>} tokens Tokens to track
* @param {function(*)} release Called when releasing control of the tokens
*/
constructor (tokens, release) {
this.originalTokens = tokens
this.tokens = [...tokens]
this._release = release
}
/**
* Resolves a token once once is available. Once the token is no
* longer needed it MUST be release with `releaseToken()`.
* @returns {Promise<*>}
*/
getToken () {
if (this.tokens.length) return Promise.resolve(this.tokens.shift())
return new Promise(resolve => {
const _push = this.tokens.push
this.tokens.push = (token) => {
this.tokens.push = _push
resolve(token)
}
})
}
/**
* Makes the token available via `getToken()`
* @param {*} token
*/
releaseToken (token) {
this.tokens.push(token)
}
/**
* Once tokens are no longer needed for a series of actions,
* drain will release them to the owner via `this._release()`
*/
async drain () {
let drained = 0
while (drained < this.originalTokens.length) {
this._release(await this.getToken())
// Remove the token
drained++
}
}
}
module.exports.TokenHolder = TokenHolder

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@ -57,6 +57,12 @@ class Libp2p extends EventEmitter {
const peerInfo = this.peerStore.put(new PeerInfo(connection.remotePeer))
this.registrar.onConnect(peerInfo, connection)
this.emit('peer:connect', peerInfo)
// Run identify for every connection
if (this.identifyService) {
this.identifyService.identify(connection, connection.remotePeer)
.catch(log.error)
}
},
onConnectionEnd: (connection) => {
const peerInfo = getPeerInfo(connection.remotePeer)
@ -104,12 +110,12 @@ class Libp2p extends EventEmitter {
})
// Add the identify service since we can multiplex
this.dialer.identifyService = new IdentifyService({
this.identifyService = new IdentifyService({
registrar: this.registrar,
peerInfo: this.peerInfo,
protocols: this.upgrader.protocols
})
this.handle(Object.values(IDENTIFY_PROTOCOLS), this.dialer.identifyService.handleMessage)
this.handle(Object.values(IDENTIFY_PROTOCOLS), this.identifyService.handleMessage)
}
// Attach private network protector
@ -236,7 +242,7 @@ class Libp2p extends EventEmitter {
connection = await this.dialer.connectToMultiaddr(peer, options)
} else {
peer = await getPeerInfoRemote(peer, this)
connection = await this.dialer.connectToPeer(peer, options)
connection = await this.dialer.connectToPeer(peer.id, options)
}
const peerInfo = getPeerInfo(connection.remotePeer)
@ -293,8 +299,8 @@ class Libp2p extends EventEmitter {
})
// Only push if libp2p is running
if (this.isStarted()) {
this.dialer.identifyService.pushToPeerStore(this.peerStore)
if (this.isStarted() && this.identifyService) {
this.identifyService.pushToPeerStore(this.peerStore)
}
}
@ -310,8 +316,8 @@ class Libp2p extends EventEmitter {
})
// Only push if libp2p is running
if (this.isStarted()) {
this.dialer.identifyService.pushToPeerStore(this.peerStore)
if (this.isStarted() && this.identifyService) {
this.identifyService.pushToPeerStore(this.peerStore)
}
}

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@ -217,6 +217,16 @@ class PeerStore extends EventEmitter {
protocols: Array.from(peerInfo.protocols)
})
}
/**
* Returns the known multiaddrs for a given `PeerId`
* @param {PeerId} peerId
* @returns {Array<Multiaddr>}
*/
multiaddrsForPeer (peerId) {
const peerInfo = this.get(peerId.toB58String())
return peerInfo.multiaddrs.toArray()
}
}
module.exports = PeerStore

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@ -1,5 +1,7 @@
'use strict'
const AbortController = require('abort-controller')
/**
* Converts BufferList messages to Buffers
* @param {*} source
@ -13,4 +15,34 @@ function toBuffer (source) {
})()
}
/**
* Takes an array of AbortSignals and returns a single signal.
* If any signals are aborted, the returned signal will be aborted.
* @param {Array<AbortSignal>} signals
* @returns {AbortSignal}
*/
function anySignal (signals) {
const controller = new AbortController()
function onAbort () {
controller.abort()
// Cleanup
for (const signal of signals) {
signal.removeEventListener('abort', onAbort)
}
}
for (const signal of signals) {
if (signal.aborted) {
onAbort()
break
}
signal.addEventListener('abort', onAbort)
}
return controller.signal
}
module.exports.toBuffer = toBuffer
module.exports.anySignal = anySignal

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@ -0,0 +1,83 @@
'use strict'
/* eslint-env mocha */
const chai = require('chai')
chai.use(require('dirty-chai'))
chai.use(require('chai-as-promised'))
const { expect } = chai
const sinon = require('sinon')
const pDefer = require('p-defer')
const pWaitFor = require('p-wait-for')
const AggregateError = require('aggregate-error')
const { AbortError } = require('libp2p-interfaces/src/transport/errors')
const { DialResolver } = require('../../src/dialer/dial-request')
const mockAbortableDial = () => {
const deferred = pDefer()
function dial () {
return {
promise: deferred.promise,
abort: () => deferred.reject(new AbortError())
}
}
dial.reject = deferred.reject
dial.resolve = deferred.resolve
return dial
}
describe('DialResolver', () => {
it('should not run subsequent dials if finished', async () => {
const deferred = pDefer()
const dial = sinon.stub().callsFake(() => {
return deferred
})
const dialResolver = new DialResolver()
dialResolver.add(dial)
deferred.resolve(true)
await pWaitFor(() => dialResolver.finished === true)
dialResolver.add(dial)
expect(dial.callCount).to.equal(1)
})
it('.flush should throw if all dials errored', async () => {
const dialResolver = new DialResolver()
const dials = [
mockAbortableDial(),
mockAbortableDial(),
mockAbortableDial()
]
for (const dial of dials) {
dialResolver.add(dial)
dial.reject(new Error('transport error'))
}
await expect(dialResolver.flush()).to.eventually.be.rejectedWith(AggregateError)
.and.to.have.nested.property('._errors.length', 3)
})
it('.flush should resolve the successful dial', async () => {
const dialResolver = new DialResolver()
const mockConn = {}
const dials = [
mockAbortableDial(),
mockAbortableDial(),
mockAbortableDial()
]
// Make the first succeed
const successfulDial = dials.shift()
dialResolver.add(successfulDial)
successfulDial.resolve(mockConn)
// Error the rest
for (const dial of dials) {
dialResolver.add(dial)
dial.reject(new Error('transport error'))
}
await expect(dialResolver.flush()).to.eventually.be(mockConn)
})
})

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@ -15,6 +15,7 @@ const PeerInfo = require('peer-info')
const delay = require('delay')
const pDefer = require('p-defer')
const pipe = require('it-pipe')
const AggregateError = require('aggregate-error')
const Libp2p = require('../../src')
const Dialer = require('../../src/dialer')
@ -79,15 +80,19 @@ describe('Dialing (direct, TCP)', () => {
const dialer = new Dialer({ transportManager: localTM })
await expect(dialer.connectToMultiaddr(unsupportedAddr))
.to.eventually.be.rejected()
.and.to.have.property('code', ErrorCodes.ERR_TRANSPORT_UNAVAILABLE)
.to.eventually.be.rejectedWith(AggregateError)
.and.to.have.nested.property('._errors[0].code', ErrorCodes.ERR_TRANSPORT_UNAVAILABLE)
})
it('should be able to connect to a given peer info', async () => {
const dialer = new Dialer({ transportManager: localTM })
const dialer = new Dialer({
transportManager: localTM,
peerStore: {
multiaddrsForPeer: () => [remoteAddr]
}
})
const peerId = await PeerId.createFromJSON(Peers[0])
const peerInfo = new PeerInfo(peerId)
peerInfo.multiaddrs.add(remoteAddr)
const connection = await dialer.connectToPeer(peerInfo)
expect(connection).to.exist()
@ -112,14 +117,18 @@ describe('Dialing (direct, TCP)', () => {
})
it('should fail to connect to a given peer with unsupported addresses', async () => {
const dialer = new Dialer({ transportManager: localTM })
const dialer = new Dialer({
transportManager: localTM,
peerStore: {
multiaddrsForPeer: () => [unsupportedAddr]
}
})
const peerId = await PeerId.createFromJSON(Peers[0])
const peerInfo = new PeerInfo(peerId)
peerInfo.multiaddrs.add(unsupportedAddr)
await expect(dialer.connectToPeer(peerInfo))
.to.eventually.be.rejected()
.and.to.have.property('code', ErrorCodes.ERR_CONNECTION_FAILED)
.to.eventually.be.rejectedWith(AggregateError)
.and.to.have.nested.property('._errors[0].code', ErrorCodes.ERR_TRANSPORT_UNAVAILABLE)
})
it('should abort dials on queue task timeout', async () => {
@ -136,7 +145,7 @@ describe('Dialing (direct, TCP)', () => {
})
await expect(dialer.connectToMultiaddr(remoteAddr))
.to.eventually.be.rejected()
.to.eventually.be.rejectedWith(Error)
.and.to.have.property('code', ErrorCodes.ERR_TIMEOUT)
})
@ -146,25 +155,21 @@ describe('Dialing (direct, TCP)', () => {
concurrency: 2
})
expect(dialer.tokens).to.have.length(2)
const deferredDial = pDefer()
sinon.stub(localTM, 'dial').callsFake(async () => {
await deferredDial.promise
})
// Add 3 dials
Promise.all([
dialer.connectToMultiaddr(remoteAddr),
dialer.connectToMultiaddr(remoteAddr),
dialer.connectToMultiaddr(remoteAddr)
])
// Perform 3 multiaddr dials
dialer.connectToMultiaddrs([remoteAddr, remoteAddr, remoteAddr])
// Let the call stack run
await delay(0)
// We should have 2 in progress, and 1 waiting
expect(localTM.dial.callCount).to.equal(2)
expect(dialer.queue.pending).to.equal(2)
expect(dialer.queue.size).to.equal(1)
expect(dialer.tokens).to.have.length(0)
deferredDial.resolve()
@ -172,8 +177,7 @@ describe('Dialing (direct, TCP)', () => {
await delay(0)
// All dials should have executed
expect(localTM.dial.callCount).to.equal(3)
expect(dialer.queue.pending).to.equal(0)
expect(dialer.queue.size).to.equal(0)
expect(dialer.tokens).to.have.length(2)
})
describe('libp2p.dialer', () => {
@ -214,7 +218,7 @@ describe('Dialing (direct, TCP)', () => {
after(() => remoteLibp2p.stop())
it('should use the dialer for connecting', async () => {
it('should use the dialer for connecting to a multiaddr', async () => {
libp2p = new Libp2p({
peerInfo,
modules: {
@ -235,6 +239,29 @@ describe('Dialing (direct, TCP)', () => {
expect(libp2p.dialer.connectToMultiaddr.callCount).to.equal(1)
})
it('should use the dialer for connecting to a peer', async () => {
libp2p = new Libp2p({
peerInfo,
modules: {
transport: [Transport],
streamMuxer: [Muxer],
connEncryption: [Crypto]
}
})
sinon.spy(libp2p.dialer, 'connectToMultiaddrs')
const remotePeer = new PeerInfo(remoteLibp2p.peerInfo.id)
remotePeer.multiaddrs.add(remoteAddr)
const connection = await libp2p.dial(remotePeer)
expect(connection).to.exist()
const { stream, protocol } = await connection.newStream('/echo/1.0.0')
expect(stream).to.exist()
expect(protocol).to.equal('/echo/1.0.0')
await connection.close()
expect(libp2p.dialer.connectToMultiaddrs.callCount).to.equal(1)
})
it('should be able to use hangup to close connections', async () => {
libp2p = new Libp2p({
peerInfo,

View File

@ -7,6 +7,7 @@ chai.use(require('chai-as-promised'))
const { expect } = chai
const sinon = require('sinon')
const pDefer = require('p-defer')
const pWaitFor = require('p-wait-for')
const delay = require('delay')
const Transport = require('libp2p-websockets')
const Muxer = require('libp2p-mplex')
@ -14,6 +15,7 @@ const Crypto = require('libp2p-secio')
const multiaddr = require('multiaddr')
const PeerId = require('peer-id')
const PeerInfo = require('peer-info')
const AggregateError = require('aggregate-error')
const { codes: ErrorCodes } = require('../../src/errors')
const Constants = require('../../src/constants')
@ -49,6 +51,22 @@ describe('Dialing (direct, WebSockets)', () => {
expect(dialer.timeout).to.equal(Constants.DIAL_TIMEOUT)
})
it('should limit the number of tokens it provides', () => {
const dialer = new Dialer({ transportManager: localTM })
const maxPerPeer = Constants.PER_PEER_LIMIT
expect(dialer.tokens).to.have.length(Constants.MAX_PARALLEL_DIALS)
const tokens = dialer.getTokens(maxPerPeer + 1)
expect(tokens).to.have.length(maxPerPeer)
expect(dialer.tokens).to.have.length(Constants.MAX_PARALLEL_DIALS - maxPerPeer)
})
it('should not return tokens if non are left', () => {
const dialer = new Dialer({ transportManager: localTM })
sinon.stub(dialer, 'tokens').value([])
const tokens = dialer.getTokens(1)
expect(tokens.length).to.equal(0)
})
it('should be able to connect to a remote node via its multiaddr', async () => {
const dialer = new Dialer({ transportManager: localTM })
@ -69,30 +87,36 @@ describe('Dialing (direct, WebSockets)', () => {
const dialer = new Dialer({ transportManager: localTM })
await expect(dialer.connectToMultiaddr(unsupportedAddr))
.to.eventually.be.rejected()
.and.to.have.property('code', ErrorCodes.ERR_TRANSPORT_DIAL_FAILED)
.to.eventually.be.rejectedWith(AggregateError)
.and.to.have.nested.property('._errors[0].code', ErrorCodes.ERR_TRANSPORT_DIAL_FAILED)
})
it('should be able to connect to a given peer', async () => {
const dialer = new Dialer({ transportManager: localTM })
const dialer = new Dialer({
transportManager: localTM,
peerStore: {
multiaddrsForPeer: () => [remoteAddr]
}
})
const peerId = await PeerId.createFromJSON(Peers[0])
const peerInfo = new PeerInfo(peerId)
peerInfo.multiaddrs.add(remoteAddr)
const connection = await dialer.connectToPeer(peerInfo)
const connection = await dialer.connectToPeer(peerId)
expect(connection).to.exist()
await connection.close()
})
it('should fail to connect to a given peer with unsupported addresses', async () => {
const dialer = new Dialer({ transportManager: localTM })
const dialer = new Dialer({
transportManager: localTM,
peerStore: {
multiaddrsForPeer: () => [unsupportedAddr]
}
})
const peerId = await PeerId.createFromJSON(Peers[0])
const peerInfo = new PeerInfo(peerId)
peerInfo.multiaddrs.add(unsupportedAddr)
await expect(dialer.connectToPeer(peerInfo))
.to.eventually.be.rejected()
.and.to.have.property('code', ErrorCodes.ERR_CONNECTION_FAILED)
await expect(dialer.connectToPeer(peerId))
.to.eventually.be.rejectedWith(AggregateError)
.and.to.have.nested.property('._errors[0].code', ErrorCodes.ERR_TRANSPORT_DIAL_FAILED)
})
it('should abort dials on queue task timeout', async () => {
@ -119,25 +143,21 @@ describe('Dialing (direct, WebSockets)', () => {
concurrency: 2
})
expect(dialer.tokens).to.have.length(2)
const deferredDial = pDefer()
sinon.stub(localTM, 'dial').callsFake(async () => {
await deferredDial.promise
})
// Add 3 dials
Promise.all([
dialer.connectToMultiaddr(remoteAddr),
dialer.connectToMultiaddr(remoteAddr),
dialer.connectToMultiaddr(remoteAddr)
])
// Perform 3 multiaddr dials
dialer.connectToMultiaddrs([remoteAddr, remoteAddr, remoteAddr])
// Let the call stack run
await delay(0)
// We should have 2 in progress, and 1 waiting
expect(localTM.dial.callCount).to.equal(2)
expect(dialer.queue.pending).to.equal(2)
expect(dialer.queue.size).to.equal(1)
expect(dialer.tokens).to.have.length(0)
deferredDial.resolve()
@ -145,8 +165,7 @@ describe('Dialing (direct, WebSockets)', () => {
await delay(0)
// All dials should have executed
expect(localTM.dial.callCount).to.equal(3)
expect(dialer.queue.pending).to.equal(0)
expect(dialer.queue.size).to.equal(0)
expect(dialer.tokens).to.have.length(2)
})
describe('libp2p.dialer', () => {
@ -215,16 +234,18 @@ describe('Dialing (direct, WebSockets)', () => {
}
})
sinon.spy(libp2p.dialer.identifyService, 'identify')
sinon.spy(libp2p.identifyService, 'identify')
sinon.spy(libp2p.peerStore, 'replace')
sinon.spy(libp2p.upgrader, 'onConnection')
const connection = await libp2p.dialer.connectToMultiaddr(remoteAddr)
expect(connection).to.exist()
// Wait for setImmediate to trigger the identify call
await delay(1)
expect(libp2p.dialer.identifyService.identify.callCount).to.equal(1)
await libp2p.dialer.identifyService.identify.firstCall.returnValue
// Wait for onConnection to be called
await pWaitFor(() => libp2p.upgrader.onConnection.callCount === 1)
expect(libp2p.identifyService.identify.callCount).to.equal(1)
await libp2p.identifyService.identify.firstCall.returnValue
expect(libp2p.peerStore.replace.callCount).to.equal(1)
})

View File

@ -10,6 +10,7 @@ const sinon = require('sinon')
const multiaddr = require('multiaddr')
const { collect } = require('streaming-iterables')
const pipe = require('it-pipe')
const AggregateError = require('aggregate-error')
const { createPeerInfo } = require('../utils/creators/peer')
const baseOptions = require('../utils/base-options')
const Libp2p = require('../../src')
@ -93,8 +94,8 @@ describe('Dialing (via relay, TCP)', () => {
.encapsulate(`/p2p-circuit/p2p/${dstLibp2p.peerInfo.id.toString()}`)
await expect(srcLibp2p.dial(dialAddr))
.to.eventually.be.rejected()
.and.to.have.property('code', Errors.ERR_HOP_REQUEST_FAILED)
.to.eventually.be.rejectedWith(AggregateError)
.and.to.have.nested.property('._errors[0].code', Errors.ERR_HOP_REQUEST_FAILED)
})
it('should not stay connected to a relay when not already connected and HOP fails', async () => {
@ -106,8 +107,8 @@ describe('Dialing (via relay, TCP)', () => {
.encapsulate(`/p2p-circuit/p2p/${dstLibp2p.peerInfo.id.toString()}`)
await expect(srcLibp2p.dial(dialAddr))
.to.eventually.be.rejected()
.and.to.have.property('code', Errors.ERR_HOP_REQUEST_FAILED)
.to.eventually.be.rejectedWith(AggregateError)
.and.to.have.nested.property('._errors[0].code', Errors.ERR_HOP_REQUEST_FAILED)
// We should not be connected to the relay, because we weren't before the dial
const srcToRelayConn = srcLibp2p.registrar.getConnection(relayLibp2p.peerInfo)
@ -125,8 +126,8 @@ describe('Dialing (via relay, TCP)', () => {
await srcLibp2p.dial(relayAddr)
await expect(srcLibp2p.dial(dialAddr))
.to.eventually.be.rejected()
.and.to.have.property('code', Errors.ERR_HOP_REQUEST_FAILED)
.to.eventually.be.rejectedWith(AggregateError)
.and.to.have.nested.property('._errors[0].code', Errors.ERR_HOP_REQUEST_FAILED)
const srcToRelayConn = srcLibp2p.registrar.getConnection(relayLibp2p.peerInfo)
expect(srcToRelayConn).to.exist()
@ -152,8 +153,8 @@ describe('Dialing (via relay, TCP)', () => {
}])
await expect(srcLibp2p.dial(dialAddr))
.to.eventually.be.rejected()
.and.to.have.property('code', Errors.ERR_HOP_REQUEST_FAILED)
.to.eventually.be.rejectedWith(AggregateError)
.and.to.have.nested.property('._errors[0].code', Errors.ERR_HOP_REQUEST_FAILED)
const dstToRelayConn = dstLibp2p.registrar.getConnection(relayLibp2p.peerInfo)
expect(dstToRelayConn).to.exist()

View File

@ -197,15 +197,15 @@ describe('Identify', () => {
peerInfo
})
sinon.spy(libp2p.dialer.identifyService, 'identify')
sinon.spy(libp2p.identifyService, 'identify')
sinon.spy(libp2p.peerStore, 'replace')
const connection = await libp2p.dialer.connectToMultiaddr(remoteAddr)
expect(connection).to.exist()
// Wait for nextTick to trigger the identify call
await delay(1)
expect(libp2p.dialer.identifyService.identify.callCount).to.equal(1)
await libp2p.dialer.identifyService.identify.firstCall.returnValue
expect(libp2p.identifyService.identify.callCount).to.equal(1)
await libp2p.identifyService.identify.firstCall.returnValue
expect(libp2p.peerStore.replace.callCount).to.equal(1)
await connection.close()
@ -217,8 +217,8 @@ describe('Identify', () => {
peerInfo
})
sinon.spy(libp2p.dialer.identifyService, 'identify')
sinon.spy(libp2p.dialer.identifyService, 'push')
sinon.spy(libp2p.identifyService, 'identify')
sinon.spy(libp2p.identifyService, 'push')
sinon.spy(libp2p.peerStore, 'update')
const connection = await libp2p.dialer.connectToMultiaddr(remoteAddr)
@ -227,15 +227,15 @@ describe('Identify', () => {
await delay(1)
// Wait for identify to finish
await libp2p.dialer.identifyService.identify.firstCall.returnValue
await libp2p.identifyService.identify.firstCall.returnValue
sinon.stub(libp2p, 'isStarted').returns(true)
libp2p.handle('/echo/2.0.0', () => {})
libp2p.unhandle('/echo/2.0.0')
// Verify the remote peer is notified of both changes
expect(libp2p.dialer.identifyService.push.callCount).to.equal(2)
for (const call of libp2p.dialer.identifyService.push.getCalls()) {
expect(libp2p.identifyService.push.callCount).to.equal(2)
for (const call of libp2p.identifyService.push.getCalls()) {
const [connections] = call.args
expect(connections.length).to.equal(1)
expect(connections[0].remotePeer.toB58String()).to.equal(remoteAddr.getPeerId())