Compare commits

..

3 Commits

Author SHA1 Message Date
Jacob Heun
b2c02d0923 0.24.0-rc.2 2018-10-25 16:52:35 +02:00
Jacob Heun
f266fba843 chore: update switch version 2018-10-25 16:51:14 +02:00
Jacob Heun
c12fff0506 0.24.0-rc.1 2018-10-19 17:44:50 +02:00
202 changed files with 1201 additions and 16361 deletions

166
.aegir.js
View File

@@ -1,134 +1,76 @@
'use strict'
const PeerInfo = require('peer-info')
const PeerId = require('peer-id')
const pull = require('pull-stream')
const parallel = require('async/parallel')
const WebSocketStarRendezvous = require('libp2p-websocket-star-rendezvous')
const sigServer = require('libp2p-webrtc-star/src/sig-server')
const promisify = require('promisify-es6')
const mplex = require('pull-mplex')
const spdy = require('libp2p-spdy')
const PeerBook = require('peer-book')
const PeerId = require('peer-id')
const PeerInfo = require('peer-info')
const path = require('path')
const Switch = require('./src/switch')
const WebSockets = require('libp2p-websockets')
const rawPeer = require('./test/fixtures/test-peer.json')
const Node = require('./test/utils/bundle-nodejs.js')
const {
getPeerRelay,
WRTC_RENDEZVOUS_MULTIADDR,
WS_RENDEZVOUS_MULTIADDR
} = require('./test/utils/constants')
let wrtcRendezvous
let wsRendezvous
let node
let peerInfo
let switchA
let switchB
function echo (protocol, conn) { pull(conn, conn) }
function idJSON (id) {
const p = path.join(__dirname, `./test/switch/test-data/id-${id}.json`)
return require(p)
}
function createSwitchA () {
return new Promise((resolve, reject) => {
PeerId.createFromJSON(idJSON(1), (err, id) => {
if (err) { return reject(err) }
const peerA = new PeerInfo(id)
const maA = '/ip4/127.0.0.1/tcp/15337/ws'
peerA.multiaddrs.add(maA)
const sw = new Switch(peerA, new PeerBook())
sw.transport.add('ws', new WebSockets())
sw.start((err) => {
if (err) { return reject(err) }
resolve(sw)
})
})
})
}
function createSwitchB () {
return new Promise((resolve, reject) => {
PeerId.createFromJSON(idJSON(2), (err, id) => {
if (err) { return reject(err) }
const peerB = new PeerInfo(id)
const maB = '/ip4/127.0.0.1/tcp/15347/ws'
peerB.multiaddrs.add(maB)
const sw = new Switch(peerB, new PeerBook())
sw.transport.add('ws', new WebSockets())
sw.connection.addStreamMuxer(mplex)
sw.connection.addStreamMuxer(spdy)
sw.connection.reuse()
sw.handle('/echo/1.0.0', echo)
sw.start((err) => {
if (err) { return reject(err) }
resolve(sw)
})
})
})
}
const before = async () => {
[
wrtcRendezvous,
wsRendezvous,
peerInfo,
switchA,
switchB
] = await Promise.all([
sigServer.start({
port: WRTC_RENDEZVOUS_MULTIADDR.nodeAddress().port
// cryptoChallenge: true TODO: needs https://github.com/libp2p/js-libp2p-webrtc-star/issues/128
}),
WebSocketStarRendezvous.start({
port: WS_RENDEZVOUS_MULTIADDR.nodeAddress().port,
refreshPeerListIntervalMS: 1000,
strictMultiaddr: false,
cryptoChallenge: true
}),
getPeerRelay(),
createSwitchA(),
createSwitchB()
])
node = new Node({
peerInfo,
config: {
relay: {
enabled: true,
hop: {
enabled: true,
active: true
const before = (done) => {
parallel([
(cb) => {
sigServer.start({
port: 15555
// cryptoChallenge: true TODO: needs https://github.com/libp2p/js-libp2p-webrtc-star/issues/128
}, (err, server) => {
if (err) {
return cb(err)
}
}
}
})
wrtcRendezvous = server
cb()
})
},
(cb) => {
WebSocketStarRendezvous.start({
port: 14444,
refreshPeerListIntervalMS: 1000,
strictMultiaddr: false,
cryptoChallenge: true
}, (err, _server) => {
if (err) {
return cb(err)
}
wsRendezvous = _server
cb()
})
},
(cb) => {
PeerId.createFromJSON(rawPeer, (err, peerId) => {
if (err) {
return done(err)
}
const peer = new PeerInfo(peerId)
node.handle('/echo/1.0.0', (protocol, conn) => pull(conn, conn))
await node.start()
peer.multiaddrs.add('/ip4/127.0.0.1/tcp/9200/ws')
node = new Node({
peerInfo: peer
})
node.handle('/echo/1.0.0', (protocol, conn) => pull(conn, conn))
node.start(cb)
})
}
], done)
}
const after = () => {
return Promise.all([
wrtcRendezvous.stop(),
wsRendezvous.stop(),
node.stop(),
promisify(switchA.stop, { context: switchA })(),
promisify(switchB.stop, { context: switchB })()
])
const after = (done) => {
setTimeout(() =>
parallel(
[node, wrtcRendezvous, wsRendezvous].map((s) => (cb) => s.stop(cb)),
done),
2000)
}
module.exports = {
bundlesize: { maxSize: '220kB' },
hooks: {
pre: before,
post: after

2
.gitignore vendored
View File

@@ -9,7 +9,6 @@ logs
*.log
coverage
.nyc_output
# Runtime data
pids
@@ -42,4 +41,3 @@ test/test-data/go-ipfs-repo/LOG.old
# while testing npm5
package-lock.json
yarn.lock

37
.npmignore Normal file
View File

@@ -0,0 +1,37 @@
**/node_modules/
**/*.log
test/repo-tests*
img
docs
examples
# Logs
logs
*.log
coverage
# Runtime data
pids
*.pid
*.seed
# Directory for instrumented libs generated by jscoverage/JSCover
lib-cov
# Coverage directory used by tools like istanbul
coverage
# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
.grunt
# node-waf configuration
.lock-wscript
build
# Dependency directory
# https://www.npmjs.org/doc/misc/npm-faq.html#should-i-check-my-node_modules-folder-into-git
node_modules
test

View File

@@ -1,44 +0,0 @@
language: node_js
cache: npm
stages:
- check
- test
- cov
node_js:
- '10'
- '12'
os:
- linux
- osx
script: npx nyc -s npm run test:node -- --bail
after_success: npx nyc report --reporter=text-lcov > coverage.lcov && npx codecov
jobs:
include:
- stage: check
script:
- npx aegir build --bundlesize
- npx aegir dep-check -- -i wrtc -i electron-webrtc
- npm run lint
- stage: test
name: chrome
addons:
chrome: stable
script:
- npx aegir test -t browser
- npx aegir test -t webworker
- stage: test
name: firefox
addons:
firefox: latest
script:
- npx aegir test -t browser -- --browsers FirefoxHeadless
- npx aegir test -t webworker -- --browsers FirefoxHeadless
notifications:
email: false

View File

@@ -1,271 +1,3 @@
<a name="0.26.1"></a>
## [0.26.1](https://github.com/libp2p/js-libp2p/compare/v0.26.0...v0.26.1) (2019-08-21)
### Bug Fixes
* avoid using superstruct interface ([aa95ab9](https://github.com/libp2p/js-libp2p/commit/aa95ab9))
* improve config defaults ([#409](https://github.com/libp2p/js-libp2p/issues/409)) ([3eef695](https://github.com/libp2p/js-libp2p/commit/3eef695)), closes [#406](https://github.com/libp2p/js-libp2p/issues/406)
* pubsub configuration ([#404](https://github.com/libp2p/js-libp2p/issues/404)) ([b0f124b](https://github.com/libp2p/js-libp2p/commit/b0f124b)), closes [#401](https://github.com/libp2p/js-libp2p/issues/401) [#401](https://github.com/libp2p/js-libp2p/issues/401) [#401](https://github.com/libp2p/js-libp2p/issues/401) [#401](https://github.com/libp2p/js-libp2p/issues/401) [#401](https://github.com/libp2p/js-libp2p/issues/401)
* reference files directly to avoid npm install failures ([#408](https://github.com/libp2p/js-libp2p/issues/408)) ([b3deb35](https://github.com/libp2p/js-libp2p/commit/b3deb35))
* reject rather than throw in get peer info ([#410](https://github.com/libp2p/js-libp2p/issues/410)) ([60b0cbc](https://github.com/libp2p/js-libp2p/commit/60b0cbc)), closes [#400](https://github.com/libp2p/js-libp2p/issues/400)
<a name="0.26.0"></a>
# [0.26.0](https://github.com/libp2p/js-libp2p/compare/v0.26.0-rc.3...v0.26.0) (2019-08-07)
<a name="0.26.0-rc.3"></a>
# [0.26.0-rc.3](https://github.com/libp2p/js-libp2p/compare/v0.26.0-rc.2...v0.26.0-rc.3) (2019-08-06)
### Bug Fixes
* promisified methods ([#398](https://github.com/libp2p/js-libp2p/issues/398)) ([ff7a6c8](https://github.com/libp2p/js-libp2p/commit/ff7a6c8))
<a name="0.26.0-rc.2"></a>
# [0.26.0-rc.2](https://github.com/libp2p/js-libp2p/compare/v0.26.0-rc.1...v0.26.0-rc.2) (2019-08-01)
### Bug Fixes
* dont override methods of created instance ([#394](https://github.com/libp2p/js-libp2p/issues/394)) ([3e95e6f](https://github.com/libp2p/js-libp2p/commit/3e95e6f))
* pubsub default config ([#393](https://github.com/libp2p/js-libp2p/issues/393)) ([f4f3f0f](https://github.com/libp2p/js-libp2p/commit/f4f3f0f))
### Chores
* update switch ([#395](https://github.com/libp2p/js-libp2p/issues/395)) ([684f283](https://github.com/libp2p/js-libp2p/commit/684f283))
### BREAKING CHANGES
* switch configuration has changed.
'blacklistTTL' is now 'denyTTL' and 'blackListAttempts' is now 'denyAttempts'
<a name="0.26.0-rc.1"></a>
# [0.26.0-rc.1](https://github.com/libp2p/js-libp2p/compare/v0.26.0-rc.0...v0.26.0-rc.1) (2019-07-31)
<a name="0.26.0-rc.0"></a>
# [0.26.0-rc.0](https://github.com/libp2p/js-libp2p/compare/v0.25.5...v0.26.0-rc.0) (2019-07-31)
### Bug Fixes
* make subscribe comply with ipfs interface ([#389](https://github.com/libp2p/js-libp2p/issues/389)) ([9554b05](https://github.com/libp2p/js-libp2p/commit/9554b05))
### Features
* integrate gossipsub by default ([#365](https://github.com/libp2p/js-libp2p/issues/365)) ([791f39a](https://github.com/libp2p/js-libp2p/commit/791f39a))
* promisify all api methods that accept callbacks ([#381](https://github.com/libp2p/js-libp2p/issues/381)) ([df6ef45](https://github.com/libp2p/js-libp2p/commit/df6ef45))
### BREAKING CHANGES
* new configuration for deciding the implementation of pubsub to be used.
In this context, the experimental flags were also removed. See the README for the latest usage.
* The ipfs interface specified that options
should be provided after the handler, not before.
https://github.com/ipfs/interface-js-ipfs-core/blob/v0.109.0/SPEC/PUBSUB.md#pubsubsubscribe
This corrects the order of parameters. See the jsdocs examples
for subscribe to see how it should be used.
<a name="0.25.5"></a>
## [0.25.5](https://github.com/libp2p/js-libp2p/compare/v0.25.4...v0.25.5) (2019-07-12)
### Bug Fixes
* peer routing for delegate router ([#377](https://github.com/libp2p/js-libp2p/issues/377)) ([905c911](https://github.com/libp2p/js-libp2p/commit/905c911)), closes [/github.com/libp2p/go-libp2p-core/blob/6e566d10f4a5447317a66d64c7459954b969bdab/routing/query.go#L15-L24](https://github.com//github.com/libp2p/go-libp2p-core/blob/6e566d10f4a5447317a66d64c7459954b969bdab/routing/query.go/issues/L15-L24)
<a name="0.25.4"></a>
## [0.25.4](https://github.com/libp2p/js-libp2p/compare/v0.25.3...v0.25.4) (2019-06-07)
### Features
* add createLibp2p to generate a PeerInfo instance ([#367](https://github.com/libp2p/js-libp2p/issues/367)) ([04faf18](https://github.com/libp2p/js-libp2p/commit/04faf18))
* pass libp2p as option to transport creation ([#363](https://github.com/libp2p/js-libp2p/issues/363)) ([b06ca1b](https://github.com/libp2p/js-libp2p/commit/b06ca1b))
<a name="0.25.3"></a>
## [0.25.3](https://github.com/libp2p/js-libp2p/compare/v0.25.2...v0.25.3) (2019-05-07)
### Features
* sign pubsub messages ([#362](https://github.com/libp2p/js-libp2p/issues/362)) ([40978a1](https://github.com/libp2p/js-libp2p/commit/40978a1))
<a name="0.25.2"></a>
## [0.25.2](https://github.com/libp2p/js-libp2p/compare/v0.25.1...v0.25.2) (2019-04-17)
### Bug Fixes
* dht config ([#359](https://github.com/libp2p/js-libp2p/issues/359)) ([f3801f0](https://github.com/libp2p/js-libp2p/commit/f3801f0))
<a name="0.25.1"></a>
## [0.25.1](https://github.com/libp2p/js-libp2p/compare/v0.25.0...v0.25.1) (2019-04-16)
### Bug Fixes
* bail when discovering self ([#357](https://github.com/libp2p/js-libp2p/issues/357)) ([f28dffb](https://github.com/libp2p/js-libp2p/commit/f28dffb))
<a name="0.25.0"></a>
# [0.25.0](https://github.com/libp2p/js-libp2p/compare/v0.25.0-rc.6...v0.25.0) (2019-04-12)
### Bug Fixes
* allow switch to be configured ([#354](https://github.com/libp2p/js-libp2p/issues/354)) ([eb5aa03](https://github.com/libp2p/js-libp2p/commit/eb5aa03))
<a name="0.25.0-rc.6"></a>
# [0.25.0-rc.6](https://github.com/libp2p/js-libp2p/compare/v0.25.0-rc.5...v0.25.0-rc.6) (2019-04-11)
### Bug Fixes
* connection emits ([#352](https://github.com/libp2p/js-libp2p/issues/352)) ([313b1ea](https://github.com/libp2p/js-libp2p/commit/313b1ea))
* remove unneeded peerbook puts ([#348](https://github.com/libp2p/js-libp2p/issues/348)) ([e5f19e8](https://github.com/libp2p/js-libp2p/commit/e5f19e8))
### Features
* auto dial discovered peers ([#349](https://github.com/libp2p/js-libp2p/issues/349)) ([01aa447](https://github.com/libp2p/js-libp2p/commit/01aa447))
<a name="0.25.0-rc.5"></a>
# [0.25.0-rc.5](https://github.com/libp2p/js-libp2p/compare/v0.25.0-rc.4...v0.25.0-rc.5) (2019-03-21)
### Bug Fixes
* disable dht by default [#338](https://github.com/libp2p/js-libp2p/issues/338) ([#339](https://github.com/libp2p/js-libp2p/issues/339)) ([e52ce66](https://github.com/libp2p/js-libp2p/commit/e52ce66))
### Features
* update to the latest switch ([#336](https://github.com/libp2p/js-libp2p/issues/336)) ([eee60ed](https://github.com/libp2p/js-libp2p/commit/eee60ed))
<a name="0.25.0-rc.4"></a>
# [0.25.0-rc.4](https://github.com/libp2p/js-libp2p/compare/v0.25.0-rc.3...v0.25.0-rc.4) (2019-03-06)
<a name="0.25.0-rc.3"></a>
# [0.25.0-rc.3](https://github.com/libp2p/js-libp2p/compare/v0.25.0-rc.2...v0.25.0-rc.3) (2019-02-26)
<a name="0.25.0-rc.2"></a>
# [0.25.0-rc.2](https://github.com/libp2p/js-libp2p/compare/v0.25.0-rc.1...v0.25.0-rc.2) (2019-02-26)
### Bug Fixes
* make the config less restrictive ([#329](https://github.com/libp2p/js-libp2p/issues/329)) ([5f92acd](https://github.com/libp2p/js-libp2p/commit/5f92acd))
<a name="0.25.0-rc.1"></a>
# [0.25.0-rc.1](https://github.com/libp2p/js-libp2p/compare/v0.25.0-rc.0...v0.25.0-rc.1) (2019-02-21)
### Bug Fixes
* bundle-size ([#298](https://github.com/libp2p/js-libp2p/issues/298)) ([d497961](https://github.com/libp2p/js-libp2p/commit/d497961))
* emit peer discovery for dht discovery ([9e7a080](https://github.com/libp2p/js-libp2p/commit/9e7a080))
### Features
* support unsubscribe all for pubsub ([#321](https://github.com/libp2p/js-libp2p/issues/321)) ([6e76aad](https://github.com/libp2p/js-libp2p/commit/6e76aad))
<a name="0.24.4"></a>
## [0.24.4](https://github.com/libp2p/js-libp2p/compare/v0.24.3...v0.24.4) (2019-01-04)
<a name="0.24.3"></a>
## [0.24.3](https://github.com/libp2p/js-libp2p/compare/v0.24.2...v0.24.3) (2018-12-14)
### Bug Fixes
* not started yet ([#297](https://github.com/libp2p/js-libp2p/issues/297)) ([fdfb7b4](https://github.com/libp2p/js-libp2p/commit/fdfb7b4))
<a name="0.24.2"></a>
## [0.24.2](https://github.com/libp2p/js-libp2p/compare/v0.24.1...v0.24.2) (2018-12-04)
### Bug Fixes
* use symbol instead of constructor name ([#292](https://github.com/libp2p/js-libp2p/issues/292)) ([53ed3bd](https://github.com/libp2p/js-libp2p/commit/53ed3bd))
<a name="0.24.1"></a>
## [0.24.1](https://github.com/libp2p/js-libp2p/compare/v0.24.0...v0.24.1) (2018-12-03)
### Features
* allow configurable validators and selectors to the dht ([#288](https://github.com/libp2p/js-libp2p/issues/288)) ([7d12eb9](https://github.com/libp2p/js-libp2p/commit/7d12eb9))
<a name="0.24.0"></a>
# [0.24.0](https://github.com/libp2p/js-libp2p/compare/v0.24.0-rc.3...v0.24.0) (2018-11-16)
### Bug Fixes
* add maxtimeout to dht get ([#248](https://github.com/libp2p/js-libp2p/issues/248)) ([69f7264](https://github.com/libp2p/js-libp2p/commit/69f7264))
* dht get options ([4460e82](https://github.com/libp2p/js-libp2p/commit/4460e82))
* dont call callback before it's properly set ([17b5f73](https://github.com/libp2p/js-libp2p/commit/17b5f73))
* improve get peer info errors ([714b6ec](https://github.com/libp2p/js-libp2p/commit/714b6ec))
* start kad dht random walk ([#251](https://github.com/libp2p/js-libp2p/issues/251)) ([dd934b9](https://github.com/libp2p/js-libp2p/commit/dd934b9))
### Features
* add datastore to config ([40e840d](https://github.com/libp2p/js-libp2p/commit/40e840d))
* add delegated peer and content routing support ([#242](https://github.com/libp2p/js-libp2p/issues/242)) ([a95389a](https://github.com/libp2p/js-libp2p/commit/a95389a))
* add maxNumProviders to findprovs ([#283](https://github.com/libp2p/js-libp2p/issues/283)) ([970deec](https://github.com/libp2p/js-libp2p/commit/970deec))
* conditionally emit errors ([f71fdfd](https://github.com/libp2p/js-libp2p/commit/f71fdfd))
* enable relay by default (no hop) ([#254](https://github.com/libp2p/js-libp2p/issues/254)) ([686379e](https://github.com/libp2p/js-libp2p/commit/686379e))
* make libp2p a state machine ([#257](https://github.com/libp2p/js-libp2p/issues/257)) ([0b75f99](https://github.com/libp2p/js-libp2p/commit/0b75f99))
* use package-table vs custom script ([a63432e](https://github.com/libp2p/js-libp2p/commit/a63432e))
<a name="0.23.1"></a>
## [0.23.1](https://github.com/libp2p/js-libp2p/compare/v0.23.0...v0.23.1) (2018-08-13)

View File

@@ -1,8 +1,8 @@
# Contributing guidelines
libp2p as a project, including js-libp2p and all of its modules, follows the [standard IPFS Community contributing guidelines](https://github.com/ipfs/community/blob/master/CONTRIBUTING.md).
libp2p as a project, including js-libp2p and all of its modules, follows the [standard IPFS Community contributing guidelines](https://github.com/ipfs/community/blob/master/contribution-guidelines.md).
We also adhere to the [IPFS JavaScript Community contributing guidelines](https://github.com/ipfs/community/blob/master/CONTRIBUTING_JS.md) which provide additional information of how to collaborate and contribute in the JavaScript implementation of libp2p.
We also adhere to the [IPFS JavaScript Community contributing guidelines](https://github.com/ipfs/community/blob/master/js-code-guidelines.md) which provide additional information of how to collaborate and contribute in the JavaScript implementation of libp2p.
We appreciate your time and attention for going over these. Please open an issue on [ipfs/community](https://github.com/ipfs/community) if you have any question.

View File

@@ -39,5 +39,5 @@ One of following:
This is for you! Please read, and then delete this text before posting it.
The js-ipfs issues are only for bug reports and directly actionable features.
Read https://github.com/ipfs/community/blob/master/CONTRIBUTING.md#reporting-issues if your issue doesn't fit either of those categories.
Read https://github.com/ipfs/community/blob/master/contributing.md#reporting-issues if your issue doesn't fit either of those categories.
-->

4
OKR.md
View File

@@ -2,10 +2,6 @@
We try to frame our ongoing work using a process based on quarterly Objectives and Key Results (OKRs). Objectives reflect outcomes that are challenging, but realistic. Results are tangible and measurable.
## 2019 Q1
Find the js-libp2p OKRs for 2019 Q1 at the [2019 Q1 libp2p OKRs Spreadsheet](https://docs.google.com/spreadsheets/d/11GKG1DBRIIAiQnHvLD7_IqWxDGsVdaZFpxJM6NWtXe8/edit#gid=1271182838)
## 2018 Q4
Find the js-libp2p OKRs for 2018 Q4 at the [2018 Q4 libp2p OKRs Spreadsheet](https://docs.google.com/spreadsheets/d/1BYwmbVicgo6_tOHAbgiUXWge8Ej0qR1M_gAUulazmrg/edit#gid=1241853194)

View File

@@ -1,60 +0,0 @@
# Peer Discovery and Auto Dial
**Synopsis**:
* All peers discovered are emitted via `peer:discovery` so applications can take any desired action.
* Libp2p defaults to automatically connecting to new peers, when under the [ConnectionManager](https://github.com/libp2p/js-libp2p-connection-manager) low watermark (minimum peers).
* Applications can disable this via the `peerDiscovery.autoDial` config property, and handle connections themselves.
* Applications who have not disabled this should **never** connect on peer discovery. Applications should use the `peer:connect` event if they wish to take a specific action on new peers.
## Scenarios
In any scenario, if a peer is discovered it should be added to the PeerBook. This ensures that even if we don't dial to a node when we discover it, we know about it in the event that it becomes known as a provider for something we need. The scenarios listed below detail what actions the auto dialer will take when peers are discovered.
### 1. Joining the network
The node is new and needs to join the network. It currently has 0 peers.
**Discovery Mechanisms**: [Ambient Discovery](#ambient-discovery)
### Action to take
Connect to discovered peers. This should have some degree of concurrency limiting. While the case should be low, if we immediately discover more peers than our high watermark we should avoid dialing them all.
### 2. Connected to some
The node is connected to other nodes. The current number of connections is less than the desired low watermark.
**Discovery Mechanisms**: [Ambient Discovery](#ambient-discovery) and [Active Discovery](#active-discovery)
### Action to take
Connect to discovered peers. This should have some degree of concurrency limiting. The concurrency may need to be modified to reflect the current number of peers connected. The more peers we have, the lower the concurrency may need to be.
### 3. Connected to enough
**Discovery Mechanisms**: [Ambient Discovery](#ambient-discovery) and [Active Discovery](#active-discovery)
### Action to take
None. If we are connected to enough peers, the low watermark, we should not connect to discovered peers. As other peers discover us, they may connect to us based on their current scenario.
For example, a long running node with adequate peers is on an MDNS network. A new peer joins the network and both become aware of each other. The new peer should be the peer that dials, as it has too few peers. The existing node has no reason to dial the new peer, but should keep a record of it in case it later becomes an important node due to its contents/capabilities.
Avoiding dials above the low watermark also allows for a pool of connections to be reserved for application specific actions, such as connecting to a specific content provider via a DHT query to find that content (ipfs-bitswap).
### 4. Connected to too many
The node has more connections than it wants. The current number of connections is greater than the high watermark.
[WIP Connection Manager v2 spec](https://github.com/libp2p/specs/pull/161)
**Discovery Mechanisms**: [Ambient Discovery](#ambient-discovery) and [Active Discovery](#active-discovery)
### Action to take
None, the `ConnectionManager` will automatically prune connections.
## Discovery Mechanisms
Means of which a libp2p node discovers other peers.
### Active Discovery
Through active use of the libp2p network, a node may discovery peers.
* Content/Peer routing (DHT, delegated, etc) provider and peer queries
* DHT random walk
* Rendezvous servers
### Ambient Discovery
Leveraging known addresses, or network discovery mechanisms, a node may discover peers outside of the bounds of the libp2p network.
* Bootstrap
* MDNS
* proximity based (bluetooth, sound, etc)

188
README.md
View File

@@ -8,14 +8,12 @@
<a href="http://ipn.io"><img src="https://img.shields.io/badge/made%20by-Protocol%20Labs-blue.svg?style=flat-square" /></a>
<a href="http://libp2p.io/"><img src="https://img.shields.io/badge/project-libp2p-yellow.svg?style=flat-square" /></a>
<a href="http://webchat.freenode.net/?channels=%23libp2p"><img src="https://img.shields.io/badge/freenode-%23libp2p-yellow.svg?style=flat-square" /></a>
<a href="https://discuss.libp2p.io"><img src="https://img.shields.io/discourse/https/discuss.libp2p.io/posts.svg" /></a>
<a href="https://waffle.io/libp2p/libp2p"><img src="https://img.shields.io/badge/pm-waffle-yellow.svg?style=flat-square" /></a>
</p>
<p align="center">
<a href="https://travis-ci.com/libp2p/js-libp2p"><img src="https://flat.badgen.net/travis/libp2p/js-libp2p" /></a>
<a href="https://codecov.io/gh/libp2p/js-libp2p"><img src="https://img.shields.io/codecov/c/github/ipfs/js-ipfs-multipart/master.svg?style=flat-square"></a>
<a href="https://bundlephobia.com/result?p=ipfsd-ctl"><img src="https://flat.badgen.net/bundlephobia/minzip/ipfsd-ctl"></a>
<a href="https://ci.ipfs.team/job/libp2p/job/js-libp2p/job/master/"><img src="https://ci.ipfs.team/buildStatus/icon?job=libp2p/js-libp2p/master" /></a>
<a href="https://codecov.io/gh/libp2p/js-libp2p"><img src="https://codecov.io/gh/libp2p/js-libp2p/branch/master/graph/badge.svg"></a>
<br>
<a href="https://david-dm.org/libp2p/js-libp2p"><img src="https://david-dm.org/libp2p/js-libp2p.svg?style=flat-square" /></a>
<a href="https://github.com/feross/standard"><img src="https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat-square"></a>
@@ -65,9 +63,7 @@ libp2p is the product of a long and arduous quest to understand the evolution of
We are in the process of writing better documentation, blog posts, tutorials and a formal specification. Today you can find:
- [libp2p.io](https://libp2p.io)
- [docs.libp2p.io](https://docs.libp2p.io)
- [Specification (WIP)](https://github.com/libp2p/specs)
- [Discussion Forums](https://discuss.libp2p.io)
- Talks
- [`libp2p <3 ethereum` at DEVCON2](https://ethereumfoundation.org/devcon/?session=libp2p) [📼 video](https://www.youtube.com/watch?v=HxueJbeMVG4) [slides](https://ethereumfoundation.org/devcon/wp-content/uploads/2016/10/libp2p-HEART-devp2p-IPFS-PLUS-Ethereum-networking.pdf) [📼 demo-1](https://ethereumfoundation.org/devcon/wp-content/uploads/2016/10/libp2p_demo1-1.mp4) [📼 demo-2](https://ethereumfoundation.org/devcon/wp-content/uploads/2016/10/libp2p_demo2-1.mp4)
- Articles
@@ -94,15 +90,13 @@ npm install --save libp2p
## Usage
**IMPORTANT NOTE**: We are currently on the way of migrating all our `libp2p` modules to use `async await` and `async iterators`, instead of callbacks and `pull-streams`. As a consequence, when you start a new libp2p project, we must check which versions of the modules you should use. For now, it is required to use the modules using callbacks with `libp2p`, while we are working on getting the remaining modules ready for a full migration. For more details, you can have a look at [libp2p/js-libp2p#266](https://github.com/libp2p/js-libp2p/issues/266).
### [Tutorials and Examples](/examples)
You can find multiple examples on the [examples folder](/examples) that will guide you through using libp2p for several scenarios.
### Creating your own libp2p bundle
The libp2p module acts as a glue for every libp2p module that you can use to create your own libp2p bundle. Creating your own libp2p bundle gives you a lot of freedom when it comes to customize it with features and default setup. We recommend creating your own libp2p bundle for the app you are developing that takes in account your needs (e.g. for a browser working version of libp2p that acts as the network layer of IPFS, we have a built one that leverages the Browser transports).
The libp2p module acts as a glue for every libp2p module that you can use top create your own libp2p bundle. Creating your own libp2p bundle gives you a lot of freedom when it comes to customize it with features and default setup. We recommend creating your own libp2p bundle for the app you are developing that takes in account your needs (e.g. for a browser working version of libp2p that acts as the network layer of IPFS, we have a built one that leverages the Browser transports).
**Example:**
@@ -113,7 +107,7 @@ The libp2p module acts as a glue for every libp2p module that you can use to cre
// crypto-channel: secio
// discovery: multicast-dns
const Libp2p = require('libp2p')
const libp2p = require('libp2p')
const TCP = require('libp2p-tcp')
const WS = require('libp2p-websockets')
const SPDY = require('libp2p-spdy')
@@ -121,13 +115,12 @@ const MPLEX = require('libp2p-mplex')
const SECIO = require('libp2p-secio')
const MulticastDNS = require('libp2p-mdns')
const DHT = require('libp2p-kad-dht')
const GossipSub = require('libp2p-gossipsub')
const defaultsDeep = require('@nodeutils/defaults-deep')
const Protector = require('libp2p-pnet')
const DelegatedPeerRouter = require('libp2p-delegated-peer-routing')
const DelegatedContentRouter = require('libp2p-delegated-content-routing')
class Node extends Libp2p {
class Node extends libp2p {
constructor (_options) {
const peerInfo = _options.peerInfo
const defaults = {
@@ -157,14 +150,12 @@ class Node extends Libp2p {
peerDiscovery: [
MulticastDNS
],
dht: DHT, // DHT enables PeerRouting, ContentRouting and DHT itself components
pubsub: GossipSub
dht: DHT // DHT enables PeerRouting, ContentRouting and DHT itself components
},
// libp2p config options (typically found on a config.json)
config: { // The config object is the part of the config that can go into a file, config.json.
peerDiscovery: {
autoDial: true, // Auto connect to discovered peers (limited by ConnectionManager minPeers)
mdns: { // mdns options
interval: 1000, // ms
enabled: true
@@ -184,18 +175,12 @@ class Node extends Libp2p {
},
dht: {
kBucketSize: 20,
enabled: true,
randomWalk: {
enabled: true, // Allows to disable discovery (enabled by default)
interval: 300e3,
timeout: 10e3
}
enabledDiscovery: true // Allows to disable discovery (enabled by default)
},
pubsub: {
enabled: true,
emitSelf: true, // whether the node should emit to self on publish, in the event of the topic being subscribed
signMessages: true, // if messages should be signed
strictSigning: true // if message signing should be required
// Enable/Disable Experimental features
EXPERIMENTAL: { // Experimental features ("behind a flag")
pubsub: false,
dht: false
}
}
}
@@ -210,33 +195,13 @@ class Node extends Libp2p {
### API
**IMPORTANT NOTE**: All the methods listed in the API section that take a callback are also now Promisified. Libp2p is migrating away from callbacks to async/await, and in a future release (that will be announced in advance), callback support will be removed entirely. You can follow progress of the async/await endeavor at https://github.com/ipfs/js-ipfs/issues/1670.
#### Create a Node - `new libp2p.Node(options)`
#### Create a Node - `Libp2p.createLibp2p(options, callback)`
> Behaves exactly like `new Libp2p(options)`, but doesn't require a PeerInfo. One will be generated instead
```js
const { createLibp2p } = require('libp2p')
createLibp2p(options, (err, libp2p) => {
if (err) throw err
libp2p.start((err) => {
if (err) throw err
})
})
```
- `options`: Object of libp2p configuration options
- `callback`: Function with signature `function (Error, Libp2p) {}`
#### Create a Node alternative - `new Libp2p(options)`
> Creates an instance of Libp2p with a custom `PeerInfo` provided via `options.peerInfo`.
> Creates an instance of the libp2p.Node.
Required keys in the `options` object:
- `peerInfo`: instance of [PeerInfo][] that contains the [PeerId][], Keys and [multiaddrs][multiaddr] of the libp2p Node.
- `modules.transport`: An array that must include at least 1 transport, such as `libp2p-tcp`.
#### `libp2p.start(callback)`
@@ -296,12 +261,12 @@ Required keys in the `options` object:
- `key`: Buffer
- `options`: object of options
- `options.maxTimeout`: Number milliseconds
- `options.maxNumProviders` maximum number of providers to find
#### `libp2p.contentRouting.provide(key, callback)`
- `key`: Buffer
#### `libp2p.handle(protocol, handlerFunc [, matchFunc])`
> Handle new protocol
@@ -336,32 +301,17 @@ Required keys in the `options` object:
> Peer has been discovered.
If `autoDial` is `true`, applications should **not** attempt to connect to the peer
unless they are performing a specific action. See [peer discovery and auto dial](./PEER_DISCOVERY.md) for more information.
- `peer`: instance of [PeerInfo][]
##### `libp2p.on('peer:connect', (peer) => {})`
> We have a new muxed connection to a peer
> We connected to a new peer
- `peer`: instance of [PeerInfo][]
##### `libp2p.on('peer:disconnect', (peer) => {})`
> We have closed a connection to a peer
- `peer`: instance of [PeerInfo][]
##### `libp2p.on('connection:start', (peer) => {})`
> We created a new connection to a peer
- `peer`: instance of [PeerInfo][]
##### `libp2p.on('connection:end', (peer) => {})`
> We closed a connection to a peer
> We disconnected from Peer
- `peer`: instance of [PeerInfo][]
@@ -555,6 +505,18 @@ Some available network protectors:
> npm run test:browser
```
#### Run interop tests
```sh
N/A
```
#### Run benchmark tests
```sh
N/A
```
### Packages
List of packages currently in existence for libp2p
@@ -564,66 +526,66 @@ List of packages currently in existence for libp2p
| Package | Version | Deps | CI | Coverage | Lead Maintainer |
| ---------|---------|---------|---------|---------|--------- |
| **Libp2p** |
| [`interface-libp2p`](//github.com/libp2p/interface-libp2p) | [![npm](https://img.shields.io/npm/v/interface-libp2p.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/interface-libp2p/releases) | [![Deps](https://david-dm.org/libp2p/interface-libp2p.svg?style=flat-square)](https://david-dm.org/libp2p/interface-libp2p) | [![Travis CI](https://travis-ci.com/libp2p/interface-libp2p.svg?branch=master)](https://travis-ci.com/libp2p/interface-libp2p) | [![codecov](https://codecov.io/gh/libp2p/interface-libp2p/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/interface-libp2p) | N/A |
| [`libp2p`](//github.com/libp2p/js-libp2p) | [![npm](https://img.shields.io/npm/v/libp2p.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`interface-libp2p`](//github.com/libp2p/interface-libp2p) | [![npm](https://img.shields.io/npm/v/interface-libp2p.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/interface-libp2p/releases) | [![Deps](https://david-dm.org/libp2p/interface-libp2p.svg?style=flat-square)](https://david-dm.org/libp2p/interface-libp2p) | N/A | [![codecov](https://codecov.io/gh/libp2p/interface-libp2p/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/interface-libp2p) | N/A |
| [`libp2p`](//github.com/libp2p/js-libp2p) | [![npm](https://img.shields.io/npm/v/libp2p.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p) | [![jenkins](https://ci.ipfs.team/buildStatus/icon?job=libp2p/js-libp2p/master)](https://ci.ipfs.team/job/libp2p/job/js-libp2p/job/master/) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| **Connection** |
| [`interface-connection`](//github.com/libp2p/interface-connection) | [![npm](https://img.shields.io/npm/v/interface-connection.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/interface-connection/releases) | [![Deps](https://david-dm.org/libp2p/interface-connection.svg?style=flat-square)](https://david-dm.org/libp2p/interface-connection) | [![Travis CI](https://travis-ci.com/libp2p/interface-connection.svg?branch=master)](https://travis-ci.com/libp2p/interface-connection) | [![codecov](https://codecov.io/gh/libp2p/interface-connection/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/interface-connection) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`interface-connection`](//github.com/libp2p/interface-connection) | [![npm](https://img.shields.io/npm/v/interface-connection.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/interface-connection/releases) | [![Deps](https://david-dm.org/libp2p/interface-connection.svg?style=flat-square)](https://david-dm.org/libp2p/interface-connection) | N/A | [![codecov](https://codecov.io/gh/libp2p/interface-connection/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/interface-connection) | N/A |
| **Transport** |
| [`interface-transport`](//github.com/libp2p/interface-transport) | [![npm](https://img.shields.io/npm/v/interface-transport.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/interface-transport/releases) | [![Deps](https://david-dm.org/libp2p/interface-transport.svg?style=flat-square)](https://david-dm.org/libp2p/interface-transport) | [![Travis CI](https://travis-ci.com/libp2p/interface-transport.svg?branch=master)](https://travis-ci.com/libp2p/interface-transport) | [![codecov](https://codecov.io/gh/libp2p/interface-transport/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/interface-transport) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-tcp`](//github.com/libp2p/js-libp2p-tcp) | [![npm](https://img.shields.io/npm/v/libp2p-tcp.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-tcp/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-tcp.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-tcp) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-tcp.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-tcp) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-tcp/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-tcp) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-udp`](//github.com/libp2p/js-libp2p-udp) | [![npm](https://img.shields.io/npm/v/libp2p-udp.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-udp/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-udp.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-udp) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-udp.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-udp) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-udp/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-udp) | N/A |
| [`libp2p-udt`](//github.com/libp2p/js-libp2p-udt) | [![npm](https://img.shields.io/npm/v/libp2p-udt.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-udt/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-udt.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-udt) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-udt.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-udt) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-udt/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-udt) | N/A |
| [`libp2p-utp`](//github.com/libp2p/js-libp2p-utp) | [![npm](https://img.shields.io/npm/v/libp2p-utp.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-utp/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-utp.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-utp) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-utp.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-utp) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-utp/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-utp) | N/A |
| [`libp2p-webrtc-direct`](//github.com/libp2p/js-libp2p-webrtc-direct) | [![npm](https://img.shields.io/npm/v/libp2p-webrtc-direct.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-webrtc-direct/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-webrtc-direct.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-webrtc-direct) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-webrtc-direct.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-webrtc-direct) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-webrtc-direct/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-webrtc-direct) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-webrtc-star`](//github.com/libp2p/js-libp2p-webrtc-star) | [![npm](https://img.shields.io/npm/v/libp2p-webrtc-star.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-webrtc-star/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-webrtc-star.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-webrtc-star) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-webrtc-star.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-webrtc-star) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-webrtc-star/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-webrtc-star) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-websockets`](//github.com/libp2p/js-libp2p-websockets) | [![npm](https://img.shields.io/npm/v/libp2p-websockets.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-websockets/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-websockets.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-websockets) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-websockets.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-websockets) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-websockets/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-websockets) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-websocket-star`](//github.com/libp2p/js-libp2p-websocket-star) | [![npm](https://img.shields.io/npm/v/libp2p-websocket-star.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-websocket-star/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-websocket-star.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-websocket-star) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-websocket-star.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-websocket-star) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-websocket-star/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-websocket-star) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-websocket-star-rendezvous`](//github.com/libp2p/js-libp2p-websocket-star-rendezvous) | [![npm](https://img.shields.io/npm/v/libp2p-websocket-star-rendezvous.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-websocket-star-rendezvous/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-websocket-star-rendezvous.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-websocket-star-rendezvous) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-websocket-star-rendezvous.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-websocket-star-rendezvous) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-websocket-star-rendezvous/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-websocket-star-rendezvous) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`interface-transport`](//github.com/libp2p/interface-transport) | [![npm](https://img.shields.io/npm/v/interface-transport.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/interface-transport/releases) | [![Deps](https://david-dm.org/libp2p/interface-transport.svg?style=flat-square)](https://david-dm.org/libp2p/interface-transport) | N/A | [![codecov](https://codecov.io/gh/libp2p/interface-transport/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/interface-transport) | N/A |
| [`libp2p-tcp`](//github.com/libp2p/js-libp2p-tcp) | [![npm](https://img.shields.io/npm/v/libp2p-tcp.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-tcp/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-tcp.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-tcp) | [![jenkins](https://ci.ipfs.team/buildStatus/icon?job=libp2p/js-libp2p-tcp/master)](https://ci.ipfs.team/job/libp2p/job/js-libp2p-tcp/job/master/) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-tcp/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-tcp) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-udp`](//github.com/libp2p/js-libp2p-udp) | [![npm](https://img.shields.io/npm/v/libp2p-udp.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-udp/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-udp.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-udp) | N/A | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-udp/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-udp) | N/A |
| [`libp2p-udt`](//github.com/libp2p/js-libp2p-udt) | [![npm](https://img.shields.io/npm/v/libp2p-udt.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-udt/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-udt.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-udt) | N/A | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-udt/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-udt) | N/A |
| [`libp2p-utp`](//github.com/libp2p/js-libp2p-utp) | [![npm](https://img.shields.io/npm/v/libp2p-utp.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-utp/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-utp.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-utp) | [![jenkins](https://ci.ipfs.team/buildStatus/icon?job=libp2p/js-libp2p-utp/master)](https://ci.ipfs.team/job/libp2p/job/js-libp2p-utp/job/master/) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-utp/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-utp) | N/A |
| [`libp2p-webrtc-direct`](//github.com/libp2p/js-libp2p-webrtc-direct) | [![npm](https://img.shields.io/npm/v/libp2p-webrtc-direct.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-webrtc-direct/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-webrtc-direct.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-webrtc-direct) | [![jenkins](https://ci.ipfs.team/buildStatus/icon?job=libp2p/js-libp2p-webrtc-direct/master)](https://ci.ipfs.team/job/libp2p/job/js-libp2p-webrtc-direct/job/master/) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-webrtc-direct/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-webrtc-direct) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-webrtc-star`](//github.com/libp2p/js-libp2p-webrtc-star) | [![npm](https://img.shields.io/npm/v/libp2p-webrtc-star.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-webrtc-star/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-webrtc-star.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-webrtc-star) | [![jenkins](https://ci.ipfs.team/buildStatus/icon?job=libp2p/js-libp2p-webrtc-star/master)](https://ci.ipfs.team/job/libp2p/job/js-libp2p-webrtc-star/job/master/) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-webrtc-star/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-webrtc-star) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-websockets`](//github.com/libp2p/js-libp2p-websockets) | [![npm](https://img.shields.io/npm/v/libp2p-websockets.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-websockets/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-websockets.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-websockets) | N/A | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-websockets/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-websockets) | N/A |
| [`libp2p-websocket-star`](//github.com/libp2p/js-libp2p-websocket-star) | [![npm](https://img.shields.io/npm/v/libp2p-websocket-star.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-websocket-star/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-websocket-star.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-websocket-star) | N/A | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-websocket-star/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-websocket-star) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-websocket-star-rendezvous`](//github.com/libp2p/js-libp2p-websocket-star-rendezvous) | [![npm](https://img.shields.io/npm/v/libp2p-websocket-star-rendezvous.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-websocket-star-rendezvous/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-websocket-star-rendezvous.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-websocket-star-rendezvous) | N/A | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-websocket-star-rendezvous/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-websocket-star-rendezvous) | N/A |
| **Crypto Channels** |
| [`libp2p-secio`](//github.com/libp2p/js-libp2p-secio) | [![npm](https://img.shields.io/npm/v/libp2p-secio.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-secio/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-secio.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-secio) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-secio.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-secio) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-secio/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-secio) | [Friedel Ziegelmayer](mailto:dignifiedquire@gmail.com) |
| [`libp2p-secio`](//github.com/libp2p/js-libp2p-secio) | [![npm](https://img.shields.io/npm/v/libp2p-secio.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-secio/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-secio.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-secio) | N/A | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-secio/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-secio) | N/A |
| **Stream Muxers** |
| [`interface-stream-muxer`](//github.com/libp2p/interface-stream-muxer) | [![npm](https://img.shields.io/npm/v/interface-stream-muxer.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/interface-stream-muxer/releases) | [![Deps](https://david-dm.org/libp2p/interface-stream-muxer.svg?style=flat-square)](https://david-dm.org/libp2p/interface-stream-muxer) | [![Travis CI](https://travis-ci.com/libp2p/interface-stream-muxer.svg?branch=master)](https://travis-ci.com/libp2p/interface-stream-muxer) | [![codecov](https://codecov.io/gh/libp2p/interface-stream-muxer/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/interface-stream-muxer) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-mplex`](//github.com/libp2p/js-libp2p-mplex) | [![npm](https://img.shields.io/npm/v/libp2p-mplex.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-mplex/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-mplex.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-mplex) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-mplex.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-mplex) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-mplex/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-mplex) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-spdy`](//github.com/libp2p/js-libp2p-spdy) | [![npm](https://img.shields.io/npm/v/libp2p-spdy.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-spdy/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-spdy.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-spdy) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-spdy.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-spdy) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-spdy/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-spdy) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`interface-stream-muxer`](//github.com/libp2p/interface-stream-muxer) | [![npm](https://img.shields.io/npm/v/interface-stream-muxer.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/interface-stream-muxer/releases) | [![Deps](https://david-dm.org/libp2p/interface-stream-muxer.svg?style=flat-square)](https://david-dm.org/libp2p/interface-stream-muxer) | N/A | [![codecov](https://codecov.io/gh/libp2p/interface-stream-muxer/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/interface-stream-muxer) | N/A |
| [`libp2p-mplex`](//github.com/libp2p/js-libp2p-mplex) | [![npm](https://img.shields.io/npm/v/libp2p-mplex.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-mplex/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-mplex.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-mplex) | N/A | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-mplex/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-mplex) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-spdy`](//github.com/libp2p/js-libp2p-spdy) | [![npm](https://img.shields.io/npm/v/libp2p-spdy.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-spdy/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-spdy.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-spdy) | [![jenkins](https://ci.ipfs.team/buildStatus/icon?job=libp2p/js-libp2p-spdy/master)](https://ci.ipfs.team/job/libp2p/job/js-libp2p-spdy/job/master/) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-spdy/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-spdy) | N/A |
| **Discovery** |
| [`interface-peer-discovery`](//github.com/libp2p/interface-peer-discovery) | [![npm](https://img.shields.io/npm/v/interface-peer-discovery.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/interface-peer-discovery/releases) | [![Deps](https://david-dm.org/libp2p/interface-peer-discovery.svg?style=flat-square)](https://david-dm.org/libp2p/interface-peer-discovery) | [![Travis CI](https://travis-ci.com/libp2p/interface-peer-discovery.svg?branch=master)](https://travis-ci.com/libp2p/interface-peer-discovery) | [![codecov](https://codecov.io/gh/libp2p/interface-peer-discovery/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/interface-peer-discovery) | N/A |
| [`libp2p-bootstrap`](//github.com/libp2p/js-libp2p-bootstrap) | [![npm](https://img.shields.io/npm/v/libp2p-bootstrap.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-bootstrap/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-bootstrap.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-bootstrap) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-bootstrap.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-bootstrap) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-bootstrap/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-bootstrap) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-kad-dht`](//github.com/libp2p/js-libp2p-kad-dht) | [![npm](https://img.shields.io/npm/v/libp2p-kad-dht.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-kad-dht/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-kad-dht.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-kad-dht) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-kad-dht.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-kad-dht) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-kad-dht/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-kad-dht) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-mdns`](//github.com/libp2p/js-libp2p-mdns) | [![npm](https://img.shields.io/npm/v/libp2p-mdns.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-mdns/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-mdns.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-mdns) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-mdns.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-mdns) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-mdns/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-mdns) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-rendezvous`](//github.com/libp2p/js-libp2p-rendezvous) | [![npm](https://img.shields.io/npm/v/libp2p-rendezvous.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-rendezvous/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-rendezvous.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-rendezvous) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-rendezvous.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-rendezvous) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-rendezvous/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-rendezvous) | N/A |
| [`libp2p-webrtc-star`](//github.com/libp2p/js-libp2p-webrtc-star) | [![npm](https://img.shields.io/npm/v/libp2p-webrtc-star.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-webrtc-star/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-webrtc-star.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-webrtc-star) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-webrtc-star.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-webrtc-star) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-webrtc-star/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-webrtc-star) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-websocket-star`](//github.com/libp2p/js-libp2p-websocket-star) | [![npm](https://img.shields.io/npm/v/libp2p-websocket-star.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-websocket-star/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-websocket-star.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-websocket-star) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-websocket-star.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-websocket-star) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-websocket-star/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-websocket-star) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`interface-peer-discovery`](//github.com/libp2p/interface-peer-discovery) | [![npm](https://img.shields.io/npm/v/interface-peer-discovery.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/interface-peer-discovery/releases) | [![Deps](https://david-dm.org/libp2p/interface-peer-discovery.svg?style=flat-square)](https://david-dm.org/libp2p/interface-peer-discovery) | N/A | [![codecov](https://codecov.io/gh/libp2p/interface-peer-discovery/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/interface-peer-discovery) | N/A |
| [`libp2p-bootstrap`](//github.com/libp2p/js-libp2p-bootstrap) | [![npm](https://img.shields.io/npm/v/libp2p-bootstrap.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-bootstrap/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-bootstrap.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-bootstrap) | [![jenkins](https://ci.ipfs.team/buildStatus/icon?job=libp2p/js-libp2p-bootstrap/master)](https://ci.ipfs.team/job/libp2p/job/js-libp2p-bootstrap/job/master/) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-bootstrap/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-bootstrap) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-kad-dht`](//github.com/libp2p/js-libp2p-kad-dht) | [![npm](https://img.shields.io/npm/v/libp2p-kad-dht.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-kad-dht/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-kad-dht.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-kad-dht) | [![jenkins](https://ci.ipfs.team/buildStatus/icon?job=libp2p/js-libp2p-kad-dht/master)](https://ci.ipfs.team/job/libp2p/job/js-libp2p-kad-dht/job/master/) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-kad-dht/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-kad-dht) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-mdns`](//github.com/libp2p/js-libp2p-mdns) | [![npm](https://img.shields.io/npm/v/libp2p-mdns.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-mdns/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-mdns.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-mdns) | [![jenkins](https://ci.ipfs.team/buildStatus/icon?job=libp2p/js-libp2p-mdns/master)](https://ci.ipfs.team/job/libp2p/job/js-libp2p-mdns/job/master/) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-mdns/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-mdns) | N/A |
| [`libp2p-rendezvous`](//github.com/libp2p/js-libp2p-rendezvous) | [![npm](https://img.shields.io/npm/v/libp2p-rendezvous.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-rendezvous/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-rendezvous.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-rendezvous) | N/A | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-rendezvous/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-rendezvous) | N/A |
| [`libp2p-webrtc-star`](//github.com/libp2p/js-libp2p-webrtc-star) | [![npm](https://img.shields.io/npm/v/libp2p-webrtc-star.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-webrtc-star/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-webrtc-star.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-webrtc-star) | [![jenkins](https://ci.ipfs.team/buildStatus/icon?job=libp2p/js-libp2p-webrtc-star/master)](https://ci.ipfs.team/job/libp2p/job/js-libp2p-webrtc-star/job/master/) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-webrtc-star/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-webrtc-star) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-websocket-star`](//github.com/libp2p/js-libp2p-websocket-star) | [![npm](https://img.shields.io/npm/v/libp2p-websocket-star.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-websocket-star/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-websocket-star.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-websocket-star) | N/A | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-websocket-star/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-websocket-star) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| **NAT Traversal** |
| [`libp2p-circuit`](//github.com/libp2p/js-libp2p-circuit) | [![npm](https://img.shields.io/npm/v/libp2p-circuit.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-circuit/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-circuit.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-circuit) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-circuit.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-circuit) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-circuit/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-circuit) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-nat-mngr`](//github.com/libp2p/js-libp2p-nat-mngr) | [![npm](https://img.shields.io/npm/v/libp2p-nat-mngr.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-nat-mngr/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-nat-mngr.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-nat-mngr) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-nat-mngr.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-nat-mngr) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-nat-mngr/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-nat-mngr) | N/A |
| [`libp2p-circuit`](//github.com/libp2p/js-libp2p-circuit) | [![npm](https://img.shields.io/npm/v/libp2p-circuit.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-circuit/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-circuit.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-circuit) | [![jenkins](https://ci.ipfs.team/buildStatus/icon?job=libp2p/js-libp2p-circuit/master)](https://ci.ipfs.team/job/libp2p/job/js-libp2p-circuit/job/master/) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-circuit/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-circuit) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-nat-mngr`](//github.com/libp2p/js-libp2p-nat-mngr) | [![npm](https://img.shields.io/npm/v/libp2p-nat-mngr.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-nat-mngr/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-nat-mngr.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-nat-mngr) | N/A | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-nat-mngr/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-nat-mngr) | N/A |
| **Data Types** |
| [`peer-book`](//github.com/libp2p/js-peer-book) | [![npm](https://img.shields.io/npm/v/peer-book.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-peer-book/releases) | [![Deps](https://david-dm.org/libp2p/js-peer-book.svg?style=flat-square)](https://david-dm.org/libp2p/js-peer-book) | [![Travis CI](https://travis-ci.com/libp2p/js-peer-book.svg?branch=master)](https://travis-ci.com/libp2p/js-peer-book) | [![codecov](https://codecov.io/gh/libp2p/js-peer-book/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-peer-book) | [Pedro Teixeira](mailto:i@pgte.me) |
| [`peer-id`](//github.com/libp2p/js-peer-id) | [![npm](https://img.shields.io/npm/v/peer-id.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-peer-id/releases) | [![Deps](https://david-dm.org/libp2p/js-peer-id.svg?style=flat-square)](https://david-dm.org/libp2p/js-peer-id) | [![Travis CI](https://travis-ci.com/libp2p/js-peer-id.svg?branch=master)](https://travis-ci.com/libp2p/js-peer-id) | [![codecov](https://codecov.io/gh/libp2p/js-peer-id/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-peer-id) | [Pedro Teixeira](mailto:i@pgte.me) |
| [`peer-info`](//github.com/libp2p/js-peer-info) | [![npm](https://img.shields.io/npm/v/peer-info.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-peer-info/releases) | [![Deps](https://david-dm.org/libp2p/js-peer-info.svg?style=flat-square)](https://david-dm.org/libp2p/js-peer-info) | [![Travis CI](https://travis-ci.com/libp2p/js-peer-info.svg?branch=master)](https://travis-ci.com/libp2p/js-peer-info) | [![codecov](https://codecov.io/gh/libp2p/js-peer-info/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-peer-info) | [Pedro Teixeira](mailto:i@pgte.me) |
| [`peer-book`](//github.com/libp2p/js-peer-book) | [![npm](https://img.shields.io/npm/v/peer-book.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-peer-book/releases) | [![Deps](https://david-dm.org/libp2p/js-peer-book.svg?style=flat-square)](https://david-dm.org/libp2p/js-peer-book) | N/A | [![codecov](https://codecov.io/gh/libp2p/js-peer-book/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-peer-book) | [Pedro Teixeira](mailto:i@pgte.me) |
| [`peer-id`](//github.com/libp2p/js-peer-id) | [![npm](https://img.shields.io/npm/v/peer-id.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-peer-id/releases) | [![Deps](https://david-dm.org/libp2p/js-peer-id.svg?style=flat-square)](https://david-dm.org/libp2p/js-peer-id) | [![jenkins](https://ci.ipfs.team/buildStatus/icon?job=libp2p/js-peer-id/master)](https://ci.ipfs.team/job/libp2p/job/js-peer-id/job/master/) | [![codecov](https://codecov.io/gh/libp2p/js-peer-id/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-peer-id) | [Pedro Teixeira](mailto:i@pgte.me) |
| [`peer-info`](//github.com/libp2p/js-peer-info) | [![npm](https://img.shields.io/npm/v/peer-info.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-peer-info/releases) | [![Deps](https://david-dm.org/libp2p/js-peer-info.svg?style=flat-square)](https://david-dm.org/libp2p/js-peer-info) | [![jenkins](https://ci.ipfs.team/buildStatus/icon?job=libp2p/js-peer-info/master)](https://ci.ipfs.team/job/libp2p/job/js-peer-info/job/master/) | [![codecov](https://codecov.io/gh/libp2p/js-peer-info/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-peer-info) | N/A |
| **Content Routing** |
| [`interface-content-routing`](//github.com/libp2p/interface-content-routing) | [![npm](https://img.shields.io/npm/v/interface-content-routing.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/interface-content-routing/releases) | [![Deps](https://david-dm.org/libp2p/interface-content-routing.svg?style=flat-square)](https://david-dm.org/libp2p/interface-content-routing) | [![Travis CI](https://travis-ci.com/libp2p/interface-content-routing.svg?branch=master)](https://travis-ci.com/libp2p/interface-content-routing) | [![codecov](https://codecov.io/gh/libp2p/interface-content-routing/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/interface-content-routing) | N/A |
| [`libp2p-delegated-content-routing`](//github.com/libp2p/js-libp2p-delegated-content-routing) | [![npm](https://img.shields.io/npm/v/libp2p-delegated-content-routing.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-delegated-content-routing/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-delegated-content-routing.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-delegated-content-routing) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-delegated-content-routing.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-delegated-content-routing) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-delegated-content-routing/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-delegated-content-routing) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-kad-dht`](//github.com/libp2p/js-libp2p-kad-dht) | [![npm](https://img.shields.io/npm/v/libp2p-kad-dht.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-kad-dht/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-kad-dht.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-kad-dht) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-kad-dht.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-kad-dht) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-kad-dht/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-kad-dht) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`interface-content-routing`](//github.com/libp2p/interface-content-routing) | [![npm](https://img.shields.io/npm/v/interface-content-routing.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/interface-content-routing/releases) | [![Deps](https://david-dm.org/libp2p/interface-content-routing.svg?style=flat-square)](https://david-dm.org/libp2p/interface-content-routing) | N/A | [![codecov](https://codecov.io/gh/libp2p/interface-content-routing/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/interface-content-routing) | N/A |
| [`libp2p-delegated-content-routing`](//github.com/libp2p/js-libp2p-delegated-content-routing) | [![npm](https://img.shields.io/npm/v/libp2p-delegated-content-routing.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-delegated-content-routing/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-delegated-content-routing.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-delegated-content-routing) | N/A | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-delegated-content-routing/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-delegated-content-routing) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-kad-dht`](//github.com/libp2p/js-libp2p-kad-dht) | [![npm](https://img.shields.io/npm/v/libp2p-kad-dht.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-kad-dht/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-kad-dht.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-kad-dht) | [![jenkins](https://ci.ipfs.team/buildStatus/icon?job=libp2p/js-libp2p-kad-dht/master)](https://ci.ipfs.team/job/libp2p/job/js-libp2p-kad-dht/job/master/) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-kad-dht/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-kad-dht) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| **Peer Routing** |
| [`interface-peer-routing`](//github.com/libp2p/interface-peer-routing) | [![npm](https://img.shields.io/npm/v/interface-peer-routing.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/interface-peer-routing/releases) | [![Deps](https://david-dm.org/libp2p/interface-peer-routing.svg?style=flat-square)](https://david-dm.org/libp2p/interface-peer-routing) | [![Travis CI](https://travis-ci.com/libp2p/interface-peer-routing.svg?branch=master)](https://travis-ci.com/libp2p/interface-peer-routing) | [![codecov](https://codecov.io/gh/libp2p/interface-peer-routing/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/interface-peer-routing) | N/A |
| [`libp2p-delegated-peer-routing`](//github.com/libp2p/js-libp2p-delegated-peer-routing) | [![npm](https://img.shields.io/npm/v/libp2p-delegated-peer-routing.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-delegated-peer-routing/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-delegated-peer-routing.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-delegated-peer-routing) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-delegated-peer-routing.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-delegated-peer-routing) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-delegated-peer-routing/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-delegated-peer-routing) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-kad-dht`](//github.com/libp2p/js-libp2p-kad-dht) | [![npm](https://img.shields.io/npm/v/libp2p-kad-dht.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-kad-dht/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-kad-dht.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-kad-dht) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-kad-dht.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-kad-dht) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-kad-dht/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-kad-dht) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`interface-peer-routing`](//github.com/libp2p/interface-peer-routing) | [![npm](https://img.shields.io/npm/v/interface-peer-routing.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/interface-peer-routing/releases) | [![Deps](https://david-dm.org/libp2p/interface-peer-routing.svg?style=flat-square)](https://david-dm.org/libp2p/interface-peer-routing) | N/A | [![codecov](https://codecov.io/gh/libp2p/interface-peer-routing/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/interface-peer-routing) | N/A |
| [`libp2p-delegated-peer-routing`](//github.com/libp2p/js-libp2p-delegated-peer-routing) | [![npm](https://img.shields.io/npm/v/libp2p-delegated-peer-routing.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-delegated-peer-routing/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-delegated-peer-routing.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-delegated-peer-routing) | N/A | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-delegated-peer-routing/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-delegated-peer-routing) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-kad-dht`](//github.com/libp2p/js-libp2p-kad-dht) | [![npm](https://img.shields.io/npm/v/libp2p-kad-dht.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-kad-dht/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-kad-dht.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-kad-dht) | [![jenkins](https://ci.ipfs.team/buildStatus/icon?job=libp2p/js-libp2p-kad-dht/master)](https://ci.ipfs.team/job/libp2p/job/js-libp2p-kad-dht/job/master/) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-kad-dht/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-kad-dht) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| **Record Store** |
| [`interface-record-store`](//github.com/libp2p/interface-record-store) | [![npm](https://img.shields.io/npm/v/interface-record-store.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/interface-record-store/releases) | [![Deps](https://david-dm.org/libp2p/interface-record-store.svg?style=flat-square)](https://david-dm.org/libp2p/interface-record-store) | [![Travis CI](https://travis-ci.com/libp2p/interface-record-store.svg?branch=master)](https://travis-ci.com/libp2p/interface-record-store) | [![codecov](https://codecov.io/gh/libp2p/interface-record-store/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/interface-record-store) | N/A |
| [`libp2p-record`](//github.com/libp2p/js-libp2p-record) | [![npm](https://img.shields.io/npm/v/libp2p-record.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-record/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-record.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-record) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-record.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-record) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-record/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-record) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`interface-record-store`](//github.com/libp2p/interface-record-store) | [![npm](https://img.shields.io/npm/v/interface-record-store.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/interface-record-store/releases) | [![Deps](https://david-dm.org/libp2p/interface-record-store.svg?style=flat-square)](https://david-dm.org/libp2p/interface-record-store) | N/A | [![codecov](https://codecov.io/gh/libp2p/interface-record-store/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/interface-record-store) | N/A |
| [`libp2p-record`](//github.com/libp2p/js-libp2p-record) | [![npm](https://img.shields.io/npm/v/libp2p-record.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-record/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-record.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-record) | [![jenkins](https://ci.ipfs.team/buildStatus/icon?job=libp2p/js-libp2p-record/master)](https://ci.ipfs.team/job/libp2p/job/js-libp2p-record/job/master/) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-record/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-record) | N/A |
| **Generics** |
| [`libp2p-connection-manager`](//github.com/libp2p/js-libp2p-connection-manager) | [![npm](https://img.shields.io/npm/v/libp2p-connection-manager.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-connection-manager/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-connection-manager.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-connection-manager) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-connection-manager.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-connection-manager) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-connection-manager/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-connection-manager) | N/A |
| [`libp2p-crypto`](//github.com/libp2p/js-libp2p-crypto) | [![npm](https://img.shields.io/npm/v/libp2p-crypto.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-crypto/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-crypto.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-crypto) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-crypto.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-crypto) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-crypto/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-crypto) | [Friedel Ziegelmayer](mailto:dignifiedquire@gmail.com) |
| [`libp2p-crypto-secp256k1`](//github.com/libp2p/js-libp2p-crypto-secp256k1) | [![npm](https://img.shields.io/npm/v/libp2p-crypto-secp256k1.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-crypto-secp256k1/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-crypto-secp256k1.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-crypto-secp256k1) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-crypto-secp256k1.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-crypto-secp256k1) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-crypto-secp256k1/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-crypto-secp256k1) | [Friedel Ziegelmayer](mailto:dignifiedquire@gmail.com) |
| [`libp2p-switch`](//github.com/libp2p/js-libp2p-switch) | [![npm](https://img.shields.io/npm/v/libp2p-switch.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-switch/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-switch.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-switch) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-switch.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-switch) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-switch/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-switch) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-connection-manager`](//github.com/libp2p/js-libp2p-connection-manager) | [![npm](https://img.shields.io/npm/v/libp2p-connection-manager.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-connection-manager/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-connection-manager.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-connection-manager) | N/A | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-connection-manager/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-connection-manager) | N/A |
| [`libp2p-crypto`](//github.com/libp2p/js-libp2p-crypto) | [![npm](https://img.shields.io/npm/v/libp2p-crypto.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-crypto/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-crypto.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-crypto) | [![jenkins](https://ci.ipfs.team/buildStatus/icon?job=libp2p/js-libp2p-crypto/master)](https://ci.ipfs.team/job/libp2p/job/js-libp2p-crypto/job/master/) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-crypto/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-crypto) | [Friedel Ziegelmayer](mailto:dignifiedquire@gmail.com) |
| [`libp2p-crypto-secp256k1`](//github.com/libp2p/js-libp2p-crypto-secp256k1) | [![npm](https://img.shields.io/npm/v/libp2p-crypto-secp256k1.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-crypto-secp256k1/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-crypto-secp256k1.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-crypto-secp256k1) | [![jenkins](https://ci.ipfs.team/buildStatus/icon?job=libp2p/js-libp2p-crypto-secp256k1/master)](https://ci.ipfs.team/job/libp2p/job/js-libp2p-crypto-secp256k1/job/master/) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-crypto-secp256k1/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-crypto-secp256k1) | N/A |
| [`libp2p-switch`](//github.com/libp2p/js-libp2p-switch) | [![npm](https://img.shields.io/npm/v/libp2p-switch.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-switch/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-switch.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-switch) | [![jenkins](https://ci.ipfs.team/buildStatus/icon?job=libp2p/js-libp2p-switch/master)](https://ci.ipfs.team/job/libp2p/job/js-libp2p-switch/job/master/) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-switch/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-switch) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| **Extensions** |
| [`libp2p-floodsub`](//github.com/libp2p/js-libp2p-floodsub) | [![npm](https://img.shields.io/npm/v/libp2p-floodsub.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-floodsub/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-floodsub.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-floodsub) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-floodsub.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-floodsub) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-floodsub/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-floodsub) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-identify`](//github.com/libp2p/js-libp2p-identify) | [![npm](https://img.shields.io/npm/v/libp2p-identify.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-identify/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-identify.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-identify) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-identify.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-identify) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-identify/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-identify) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-keychain`](//github.com/libp2p/js-libp2p-keychain) | [![npm](https://img.shields.io/npm/v/libp2p-keychain.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-keychain/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-keychain.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-keychain) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-keychain.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-keychain) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-keychain/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-keychain) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-ping`](//github.com/libp2p/js-libp2p-ping) | [![npm](https://img.shields.io/npm/v/libp2p-ping.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-ping/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-ping.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-ping) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-ping.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-ping) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-ping/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-ping) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-pnet`](//github.com/libp2p/js-libp2p-pnet) | [![npm](https://img.shields.io/npm/v/libp2p-pnet.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-pnet/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-pnet.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-pnet) | [![Travis CI](https://travis-ci.com/libp2p/js-libp2p-pnet.svg?branch=master)](https://travis-ci.com/libp2p/js-libp2p-pnet) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-pnet/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-pnet) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-floodsub`](//github.com/libp2p/js-libp2p-floodsub) | [![npm](https://img.shields.io/npm/v/libp2p-floodsub.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-floodsub/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-floodsub.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-floodsub) | N/A | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-floodsub/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-floodsub) | N/A |
| [`libp2p-identify`](//github.com/libp2p/js-libp2p-identify) | [![npm](https://img.shields.io/npm/v/libp2p-identify.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-identify/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-identify.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-identify) | N/A | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-identify/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-identify) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| [`libp2p-keychain`](//github.com/libp2p/js-libp2p-keychain) | [![npm](https://img.shields.io/npm/v/libp2p-keychain.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-keychain/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-keychain.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-keychain) | N/A | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-keychain/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-keychain) | [Vasco Santos](mailto:vasco.santos@moxy.studio) |
| [`libp2p-ping`](//github.com/libp2p/js-libp2p-ping) | [![npm](https://img.shields.io/npm/v/libp2p-ping.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-ping/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-ping.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-ping) | [![jenkins](https://ci.ipfs.team/buildStatus/icon?job=libp2p/js-libp2p-ping/master)](https://ci.ipfs.team/job/libp2p/job/js-libp2p-ping/job/master/) | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-ping/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-ping) | N/A |
| [`libp2p-pnet`](//github.com/libp2p/js-libp2p-pnet) | [![npm](https://img.shields.io/npm/v/libp2p-pnet.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-libp2p-pnet/releases) | [![Deps](https://david-dm.org/libp2p/js-libp2p-pnet.svg?style=flat-square)](https://david-dm.org/libp2p/js-libp2p-pnet) | N/A | [![codecov](https://codecov.io/gh/libp2p/js-libp2p-pnet/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-libp2p-pnet) | [Jacob Heun](mailto:jacobheun@gmail.com) |
| **Utilities** |
| [`p2pcat`](//github.com/libp2p/js-p2pcat) | [![npm](https://img.shields.io/npm/v/p2pcat.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-p2pcat/releases) | [![Deps](https://david-dm.org/libp2p/js-p2pcat.svg?style=flat-square)](https://david-dm.org/libp2p/js-p2pcat) | [![Travis CI](https://travis-ci.com/libp2p/js-p2pcat.svg?branch=master)](https://travis-ci.com/libp2p/js-p2pcat) | [![codecov](https://codecov.io/gh/libp2p/js-p2pcat/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-p2pcat) | N/A |
| [`p2pcat`](//github.com/libp2p/js-p2pcat) | [![npm](https://img.shields.io/npm/v/p2pcat.svg?maxAge=86400&style=flat-square)](//github.com/libp2p/js-p2pcat/releases) | [![Deps](https://david-dm.org/libp2p/js-p2pcat.svg?style=flat-square)](https://david-dm.org/libp2p/js-p2pcat) | N/A | [![codecov](https://codecov.io/gh/libp2p/js-p2pcat/branch/master/graph/badge.svg)](https://codecov.io/gh/libp2p/js-p2pcat) | N/A |
## Contribute

View File

@@ -13,14 +13,6 @@
- Robustness and quality
- [ ] Ensure that all tests are passing, this includes:
- [ ] unit
- [ ] Publish a release candidate to npm
```sh
# Minor prerelease (e.g. 0.24.1 -> 0.25.0-rc.0)
$ npx aegir release --type preminor -t node -t browser --preid rc --dist-tag next
# Increment prerelease (e.g. 0.25.0-rc.0 -> 0.25.0-rc.1)
$ npx aegir release --type prerelease -t node -t browser --preid rc --dist-tag next
```
- [ ] Run tests of the following projects with the new release:
- [ ] [js-ipfs](https://github.com/ipfs/js-ipfs)
- Documentation
@@ -28,31 +20,22 @@
- [ ] Ensure that all the examples run
- Communication
- [ ] Create the release issue
- [ ] Take a snapshot between of everyone that has contributed to this release (including its subdeps in IPFS, libp2p, IPLD and multiformats) using [`name-your-contributors`](https://www.npmjs.com/package/name-your-contributors). Generate a nice markdown list with [this script](https://gist.github.com/jacobheun/d2ff479ca991733c13cdcf688a1317e5)
- [ ] Announcements (both pre-release and post-release)
- [ ] Twitter
- [ ] IRC
- [ ] Reddit
- [ ] [discuss.libp2p.io](https://discuss.libp2p.io/c/news)
- [ ] Blog post
- [ ] Copy release notes to the [GitHub Release description](https://github.com/libp2p/js-libp2p/releases)
# ❤️ Huge thank you to everyone that made this release possible
In alphabetical order, here are all the humans that contributed to the release:
- ...
# 🙌🏽 Want to contribute?
Would you like to contribute to the libp2p project and don't know how? Well, there are a few places you can get started:
- Check the issues with the `help wanted` label in the [libp2p repo](https://github.com/libp2p/js-libp2p/issues?q=is%3Aopen+is%3Aissue+label%3A%22help+wanted%22)
- Join an IPFS All Hands, introduce yourself and let us know where you would like to contribute - https://github.com/ipfs/team-mgmt#all-hands-call
- Check the issues with the `help wanted` label at the Ready column in our waffle board - https://waffle.io/libp2p/js-libp2p?label=help%20wanted
- Join an IPFS All Hands, introduce yourself and let us know where you would like to contribute - https://github.com/ipfs/pm/#all-hands-call
- Hack with IPFS and show us what you made! The All Hands call is also the perfect venue for demos, join in and show us what you built
- Join the discussion at http://discuss.ipfs.io/ and help users finding their answers.
- Join the [⚡️ⒿⓈ Core Dev Team Weekly Sync 🙌🏽 ](https://github.com/ipfs/team-mgmt/issues/650) and be part of the Sprint action!
- Join the [⚡️ⒿⓈ Core Dev Team Weekly Sync 🙌🏽 ](https://github.com/ipfs/pm/issues/650) and be part of the Sprint action!
# ⁉️ Do you have questions?
The best place to ask your questions about libp2p, how it works and what you can do with it is at [discuss.libp2p.io](https://discuss.libp2p.io). We are also available at the #libp2p channel on Freenode.
The best place to ask your questions about libp2p, how it works and what you can do with it is at [discuss.ipfs.io](http://discuss.ipfs.io). We are also available at the #libp2p channel on Freenode.

29
appveyor.yml Normal file
View File

@@ -0,0 +1,29 @@
# Warning: This file is automatically synced from https://github.com/ipfs/ci-sync so if you want to change it, please change it there and ask someone to sync all repositories.
version: "{build}"
environment:
matrix:
- nodejs_version: "6"
- nodejs_version: "8"
matrix:
fast_finish: true
install:
# Install Node.js
- ps: Install-Product node $env:nodejs_version
# Upgrade npm
- npm install -g npm
# Output our current versions for debugging
- node --version
- npm --version
# Install our package dependencies
- npm install
test_script:
- npm run test:node
build: off

2
ci/Jenkinsfile vendored Normal file
View File

@@ -0,0 +1,2 @@
// Warning: This file is automatically synced from https://github.com/ipfs/ci-sync so if you want to change it, please change it there and ask someone to sync all repositories.
javascript()

22
circle.yml Normal file
View File

@@ -0,0 +1,22 @@
machine:
node:
version: 8.11.3
test:
post:
- npm run coverage -- --upload --providers coveralls
dependencies:
pre:
- google-chrome --version
- curl -L -o google-chrome.deb https://dl.google.com/linux/direct/google-chrome-stable_current_amd64.deb
- for v in $(curl http://archive.ubuntu.com/ubuntu/pool/main/n/nss/ | grep "href=" | grep "libnss3.*deb\"" -o | grep -o "libnss3.*deb" | grep "3.28" | grep "14.04"); do curl -L -o $v http://archive.ubuntu.com/ubuntu/pool/main/n/nss/$v; done && rm libnss3-tools*_i386.deb libnss3-dev*_i386.deb
- sudo dpkg -i google-chrome.deb || true
- sudo dpkg -i libnss3*.deb || true
- sudo apt-get update
- sudo apt-get install -f || true
- sudo dpkg -i libnss3*.deb
- sudo apt-get install -f
- sudo apt-get install --only-upgrade lsb-base
- sudo dpkg -i google-chrome.deb
- google-chrome --version

View File

@@ -10,7 +10,8 @@ Let us know if you find any issue or if you want to contribute and add a new tut
- [Protocol and Stream Muxing](./protocol-and-stream-muxing)
- [Encrypted Communications](./encrypted-communications)
- [Discovery Mechanisms](./discovery-mechanisms)
- [Peer and Content Routing](./peer-and-content-routing)
- [Peer Routing](./peer-and-content-routing)
- [Content Routing](./peer-and-content-routing)
- [PubSub](./pubsub)
- [NAT Traversal](./nat-traversal)
- Circuit Relay (future)

View File

@@ -3,11 +3,11 @@
This example creates a simple chat app in your terminal.
## Setup
1. Install the modules in the libp2p root directory, `npm install`.
2. Open 2 terminal windows in the `./examples/chat/src` directory.
1. Install the modules, `npm install`.
2. Open 2 terminal windows in the `./src` directory.
## Running
1. Run the listener in window 1, `node listener.js`
2. Run the dialer in window 2, `node dialer.js`
3. Type a message in either window and hit _enter_
4. Tell yourself secrets to your hearts content!
4. Tell youself secrets to your hearts content!

View File

@@ -46,7 +46,7 @@ async.parallel([
console.log('Dialer ready, listening on:')
peerListener.multiaddrs.forEach((ma) => {
console.log(ma.toString() + '/p2p/' + idListener.toB58String())
console.log(ma.toString() + '/ipfs/' + idListener.toB58String())
})
nodeDialer.dialProtocol(peerListener, '/chat/1.0.0', (err, conn) => {

View File

@@ -3,7 +3,7 @@
const TCP = require('libp2p-tcp')
const MulticastDNS = require('libp2p-mdns')
const WS = require('libp2p-websockets')
const Bootstrap = require('libp2p-bootstrap')
const Bootstrap = require('libp2p-railing')
const spdy = require('libp2p-spdy')
const KadDHT = require('libp2p-kad-dht')
const mplex = require('libp2p-mplex')

View File

@@ -50,7 +50,7 @@ PeerId.createFromJSON(require('./peer-id-listener'), (err, idListener) => {
console.log('Listener ready, listening on:')
peerListener.multiaddrs.forEach((ma) => {
console.log(ma.toString() + '/p2p/' + idListener.toB58String())
console.log(ma.toString() + '/ipfs/' + idListener.toB58String())
})
})
})

View File

@@ -18,8 +18,8 @@ various Peer Discovery modules and see the impact it has on your Peer count.
1. Install IPFS locally if you dont already have it. [Install Guide](https://docs.ipfs.io/introduction/install/)
2. Run the IPFS daemon: `ipfs daemon`
3. The daemon will output a line about its API address, like `API server listening on /ip4/127.0.0.1/tcp/8080`
4. In another window output the addresses of the node: `ipfs id`. Make note of the websocket address, it will contain `/ws/` in the address.
5. In `./src/libp2p-bundle.js` check if the host and port of your node are correct, according to the previous step. If they are different, replace them.
4. In another window output the addresses of the node: `ipfs id`. Make note of the websocket address, is will contain `/ws/` in the address.
5. In `./src/libp2p-bundle.js` replace the `delegatedApiOptions` host and port of your node if they are different.
6. In `./src/App.js` replace `BootstrapNode` with your nodes Websocket address from step 4.
7. Start this example:

View File

@@ -3,27 +3,21 @@
"version": "0.1.0",
"private": true,
"dependencies": {
"ipfs": "~0.34.4",
"libp2p": "github:libp2p/js-libp2p#master",
"ipfs": "~0.32.2",
"libp2p": "../../",
"libp2p-delegated-content-routing": "~0.2.2",
"libp2p-delegated-peer-routing": "~0.2.2",
"libp2p-kad-dht": "~0.14.12",
"libp2p-mplex": "~0.8.5",
"libp2p-secio": "~0.11.1",
"libp2p-webrtc-star": "~0.15.8",
"libp2p-websocket-star": "~0.10.2",
"libp2p-websockets": "~0.12.2",
"react": "^16.8.6",
"react-dom": "^16.8.6",
"react-scripts": "2.1.8"
"libp2p-kad-dht": "~0.10.4",
"libp2p-mplex": "~0.8.0",
"libp2p-secio": "~0.10.0",
"libp2p-webrtc-star": "~0.15.5",
"libp2p-websocket-star": "~0.8.1",
"libp2p-websockets": "~0.12.0",
"react": "^16.5.2",
"react-dom": "^16.5.2",
"react-scripts": "1.1.5"
},
"scripts": {
"start": "react-scripts start"
},
"browserslist": [
">0.2%",
"not dead",
"not ie <= 11",
"not op_mini all"
]
}
}

View File

@@ -1,12 +1,13 @@
// eslint-disable-next-line
'use strict'
import React from 'react'
import Ipfs from 'ipfs'
import libp2pBundle from './libp2p-bundle'
const React = require('react')
const Component = React.Component
const Ipfs = require('ipfs')
const libp2pBundle = require('./libp2p-bundle')
// require('./App.css')
const BootstrapNode = '/ip4/127.0.0.1/tcp/8081/ws/p2p/QmdoG8DpzYUZMVP5dGmgmigZwR1RE8Cf6SxMPg1SBXJAQ8'
const BootstrapNode = '/ip4/127.0.0.1/tcp/8081/ws/ipfs/QmdoG8DpzYUZMVP5dGmgmigZwR1RE8Cf6SxMPg1SBXJAQ8'
class App extends Component {
constructor (props) {
@@ -149,4 +150,4 @@ class App extends Component {
}
}
export default App
module.exports = App

View File

@@ -1,8 +1,9 @@
// eslint-disable-next-line
'use strict'
import React from 'react' // eslint-disable-line no-unused-vars
import ReactDOM from 'react-dom'
import App from './App' // eslint-disable-line no-unused-vars
const React = require('react') // eslint-disable-line no-unused-vars
const ReactDOM = require('react-dom')
const App = require('./App') // eslint-disable-line no-unused-vars
// require('index.css')
ReactDOM.render(<App />, document.getElementById('root'))

View File

@@ -11,7 +11,7 @@ const KadDHT = require('libp2p-kad-dht')
const DelegatedPeerRouter = require('libp2p-delegated-peer-routing')
const DelegatedContentRouter = require('libp2p-delegated-content-routing')
export default function Libp2pBundle ({peerInfo, peerBook}) {
module.exports = ({peerInfo, peerBook}) => {
const wrtcstar = new WebRTCStar({id: peerInfo.id})
const wsstar = new WebSocketStar({id: peerInfo.id})
const delegatedApiOptions = {
@@ -54,7 +54,6 @@ export default function Libp2pBundle ({peerInfo, peerBook}) {
},
config: {
peerDiscovery: {
autoDial: false,
webrtcStar: {
enabled: false
},
@@ -63,13 +62,16 @@ export default function Libp2pBundle ({peerInfo, peerBook}) {
}
},
dht: {
enabled: false
kBucketSize: 20
},
relay: {
enabled: true,
hop: {
enabled: false
}
},
EXPERIMENTAL: {
dht: false
}
}
})

View File

@@ -6,21 +6,21 @@ const TCP = require('libp2p-tcp')
const Mplex = require('libp2p-mplex')
const SECIO = require('libp2p-secio')
const PeerInfo = require('peer-info')
const Bootstrap = require('libp2p-bootstrap')
const Bootstrap = require('libp2p-railing')
const waterfall = require('async/waterfall')
const defaultsDeep = require('@nodeutils/defaults-deep')
// Find this list at: https://github.com/ipfs/js-ipfs/blob/master/src/core/runtime/config-nodejs.json
const bootstrapers = [
'/ip4/104.131.131.82/tcp/4001/p2p/QmaCpDMGvV2BGHeYERUEnRQAwe3N8SzbUtfsmvsqQLuvuJ',
'/ip4/104.236.176.52/tcp/4001/p2p/QmSoLnSGccFuZQJzRadHn95W2CrSFmZuTdDWP8HXaHca9z',
'/ip4/104.236.179.241/tcp/4001/p2p/QmSoLPppuBtQSGwKDZT2M73ULpjvfd3aZ6ha4oFGL1KrGM',
'/ip4/162.243.248.213/tcp/4001/p2p/QmSoLueR4xBeUbY9WZ9xGUUxunbKWcrNFTDAadQJmocnWm',
'/ip4/128.199.219.111/tcp/4001/p2p/QmSoLSafTMBsPKadTEgaXctDQVcqN88CNLHXMkTNwMKPnu',
'/ip4/104.236.76.40/tcp/4001/p2p/QmSoLV4Bbm51jM9C4gDYZQ9Cy3U6aXMJDAbzgu2fzaDs64',
'/ip4/178.62.158.247/tcp/4001/p2p/QmSoLer265NRgSp2LA3dPaeykiS1J6DifTC88f5uVQKNAd',
'/ip4/178.62.61.185/tcp/4001/p2p/QmSoLMeWqB7YGVLJN3pNLQpmmEk35v6wYtsMGLzSr5QBU3',
'/ip4/104.236.151.122/tcp/4001/p2p/QmSoLju6m7xTh3DuokvT3886QRYqxAzb1kShaanJgW36yx'
'/ip4/104.131.131.82/tcp/4001/ipfs/QmaCpDMGvV2BGHeYERUEnRQAwe3N8SzbUtfsmvsqQLuvuJ',
'/ip4/104.236.176.52/tcp/4001/ipfs/QmSoLnSGccFuZQJzRadHn95W2CrSFmZuTdDWP8HXaHca9z',
'/ip4/104.236.179.241/tcp/4001/ipfs/QmSoLPppuBtQSGwKDZT2M73ULpjvfd3aZ6ha4oFGL1KrGM',
'/ip4/162.243.248.213/tcp/4001/ipfs/QmSoLueR4xBeUbY9WZ9xGUUxunbKWcrNFTDAadQJmocnWm',
'/ip4/128.199.219.111/tcp/4001/ipfs/QmSoLSafTMBsPKadTEgaXctDQVcqN88CNLHXMkTNwMKPnu',
'/ip4/104.236.76.40/tcp/4001/ipfs/QmSoLV4Bbm51jM9C4gDYZQ9Cy3U6aXMJDAbzgu2fzaDs64',
'/ip4/178.62.158.247/tcp/4001/ipfs/QmSoLer265NRgSp2LA3dPaeykiS1J6DifTC88f5uVQKNAd',
'/ip4/178.62.61.185/tcp/4001/ipfs/QmSoLMeWqB7YGVLJN3pNLQpmmEk35v6wYtsMGLzSr5QBU3',
'/ip4/104.236.151.122/tcp/4001/ipfs/QmSoLju6m7xTh3DuokvT3886QRYqxAzb1kShaanJgW36yx'
]
class MyBundle extends libp2p {
@@ -34,9 +34,8 @@ class MyBundle extends libp2p {
},
config: {
peerDiscovery: {
autoDial: true,
bootstrap: {
interval: 20e3,
interval: 2000,
enabled: true,
list: bootstrapers
}
@@ -63,8 +62,8 @@ waterfall([
if (err) { throw err }
node.on('peer:discovery', (peer) => {
// No need to dial, autoDial is on
console.log('Discovered:', peer.id.toB58String())
node.dial(peer, () => {})
})
node.on('peer:connect', (peer) => {

View File

@@ -23,7 +23,7 @@ class MyBundle extends libp2p {
config: {
peerDiscovery: {
mdns: {
interval: 20e3,
interval: 1000,
enabled: true
}
}

View File

@@ -43,15 +43,15 @@ In this bundle, we use a `bootstrappers` array listing peers to connect _on boot
```JavaScript
const bootstrapers = [
'/ip4/104.131.131.82/tcp/4001/p2p/QmaCpDMGvV2BGHeYERUEnRQAwe3N8SzbUtfsmvsqQLuvuJ',
'/ip4/104.236.176.52/tcp/4001/p2p/QmSoLnSGccFuZQJzRadHn95W2CrSFmZuTdDWP8HXaHca9z',
'/ip4/104.236.179.241/tcp/4001/p2p/QmSoLPppuBtQSGwKDZT2M73ULpjvfd3aZ6ha4oFGL1KrGM',
'/ip4/162.243.248.213/tcp/4001/p2p/QmSoLueR4xBeUbY9WZ9xGUUxunbKWcrNFTDAadQJmocnWm',
'/ip4/128.199.219.111/tcp/4001/p2p/QmSoLSafTMBsPKadTEgaXctDQVcqN88CNLHXMkTNwMKPnu',
'/ip4/104.236.76.40/tcp/4001/p2p/QmSoLV4Bbm51jM9C4gDYZQ9Cy3U6aXMJDAbzgu2fzaDs64',
'/ip4/178.62.158.247/tcp/4001/p2p/QmSoLer265NRgSp2LA3dPaeykiS1J6DifTC88f5uVQKNAd',
'/ip4/178.62.61.185/tcp/4001/p2p/QmSoLMeWqB7YGVLJN3pNLQpmmEk35v6wYtsMGLzSr5QBU3',
'/ip4/104.236.151.122/tcp/4001/p2p/QmSoLju6m7xTh3DuokvT3886QRYqxAzb1kShaanJgW36yx'
'/ip4/104.131.131.82/tcp/4001/ipfs/QmaCpDMGvV2BGHeYERUEnRQAwe3N8SzbUtfsmvsqQLuvuJ',
'/ip4/104.236.176.52/tcp/4001/ipfs/QmSoLnSGccFuZQJzRadHn95W2CrSFmZuTdDWP8HXaHca9z',
'/ip4/104.236.179.241/tcp/4001/ipfs/QmSoLPppuBtQSGwKDZT2M73ULpjvfd3aZ6ha4oFGL1KrGM',
'/ip4/162.243.248.213/tcp/4001/ipfs/QmSoLueR4xBeUbY9WZ9xGUUxunbKWcrNFTDAadQJmocnWm',
'/ip4/128.199.219.111/tcp/4001/ipfs/QmSoLSafTMBsPKadTEgaXctDQVcqN88CNLHXMkTNwMKPnu',
'/ip4/104.236.76.40/tcp/4001/ipfs/QmSoLV4Bbm51jM9C4gDYZQ9Cy3U6aXMJDAbzgu2fzaDs64',
'/ip4/178.62.158.247/tcp/4001/ipfs/QmSoLer265NRgSp2LA3dPaeykiS1J6DifTC88f5uVQKNAd',
'/ip4/178.62.61.185/tcp/4001/ipfs/QmSoLMeWqB7YGVLJN3pNLQpmmEk35v6wYtsMGLzSr5QBU3',
'/ip4/104.236.151.122/tcp/4001/ipfs/QmSoLju6m7xTh3DuokvT3886QRYqxAzb1kShaanJgW36yx'
]
```

View File

@@ -3,7 +3,7 @@
This example performs a simple echo from the listener to the dialer.
## Setup
1. Install the modules from libp2p root, `npm install`.
1. Install the modules, `npm install`.
2. Open 2 terminal windows in the `./src` directory.
## Running

View File

@@ -28,7 +28,7 @@ async.parallel([
// Peer to Dial
const listenerPeerInfo = new PeerInfo(ids[1])
const listenerId = ids[1]
const listenerMultiaddr = '/ip4/127.0.0.1/tcp/10333/p2p/' +
const listenerMultiaddr = '/ip4/127.0.0.1/tcp/10333/ipfs/' +
listenerId.toB58String()
listenerPeerInfo.multiaddrs.add(listenerMultiaddr)
@@ -37,7 +37,7 @@ async.parallel([
console.log('Dialer ready, listening on:')
dialerPeerInfo.multiaddrs.forEach((ma) => console.log(ma.toString() +
'/p2p/' + dialerId.toB58String()))
'/ipfs/' + dialerId.toB58String()))
console.log('Dialing to peer:', listenerMultiaddr.toString())
dialerNode.dialProtocol(listenerPeerInfo, '/echo/1.0.0', (err, conn) => {

View File

@@ -3,7 +3,7 @@
const TCP = require('libp2p-tcp')
const MulticastDNS = require('libp2p-mdns')
const WS = require('libp2p-websockets')
const Bootstrap = require('libp2p-bootstrap')
const Bootstrap = require('libp2p-railing')
const spdy = require('libp2p-spdy')
const KadDHT = require('libp2p-kad-dht')
const mplex = require('libp2p-mplex')

View File

@@ -41,6 +41,6 @@ series([
console.log('Listener ready, listening on:')
listenerNode.peerInfo.multiaddrs.forEach((ma) => {
console.log(ma.toString() + '/p2p/' + listenerId.toB58String())
console.log(ma.toString() + '/ipfs/' + listenerId.toB58String())
})
})

View File

@@ -37,4 +37,4 @@ And that's it, from now on, all your libp2p communications are encrypted. Try ru
If you want to want to learn more about how SECIO works, you can read the [great write up done by Dominic Tarr](https://github.com/auditdrivencrypto/secure-channel/blob/master/prior-art.md#ipfss-secure-channel).
Important note: SECIO hasn't been audited and so, we do not recommend to trust its security. We intent to move to TLS 1.3 once the specification is finalized and an implementation exists that we can use.
Importante note: SECIO hasn't been audited and so, we do not recommend to trust its security. We intent to move to TLS 1.3 once the specification is finalized and an implementation exists that we can use.

View File

@@ -17,16 +17,12 @@
},
"dependencies": {
"detect-dom-ready": "^1.0.2",
"libp2p": "../../../",
"libp2p-bootstrap": "~0.9.7",
"libp2p-gossipsub": "~0.0.4",
"libp2p-kad-dht": "^0.15.3",
"libp2p-mplex": "~0.8.5",
"libp2p-secio": "~0.11.1",
"libp2p-spdy": "~0.13.3",
"libp2p-webrtc-star": "~0.15.8",
"libp2p-websocket-star": "~0.10.2",
"libp2p-websockets": "~0.12.2",
"peer-info": "~0.15.1"
"libp2p-mplex": "~0.8.0",
"libp2p-railing": "~0.9.1",
"libp2p-secio": "~0.10.0",
"libp2p-spdy": "~0.12.1",
"libp2p-webrtc-star": "~0.15.3",
"libp2p-websockets": "~0.12.0",
"peer-info": "~0.14.1"
}
}

View File

@@ -2,40 +2,36 @@
const WebRTCStar = require('libp2p-webrtc-star')
const WebSockets = require('libp2p-websockets')
const WebSocketStar = require('libp2p-websocket-star')
const Mplex = require('libp2p-mplex')
const SPDY = require('libp2p-spdy')
const SECIO = require('libp2p-secio')
const Bootstrap = require('libp2p-bootstrap')
const DHT = require('libp2p-kad-dht')
const Gossipsub = require('libp2p-gossipsub')
const libp2p = require('libp2p')
const Bootstrap = require('libp2p-railing')
const defaultsDeep = require('@nodeutils/defaults-deep')
const libp2p = require('../../../../')
// Find this list at: https://github.com/ipfs/js-ipfs/blob/master/src/core/runtime/config-browser.json
const bootstrapList = [
'/dns4/ams-1.bootstrap.libp2p.io/tcp/443/wss/p2p/QmSoLer265NRgSp2LA3dPaeykiS1J6DifTC88f5uVQKNAd',
'/dns4/sfo-1.bootstrap.libp2p.io/tcp/443/wss/p2p/QmSoLju6m7xTh3DuokvT3886QRYqxAzb1kShaanJgW36yx',
'/dns4/lon-1.bootstrap.libp2p.io/tcp/443/wss/p2p/QmSoLMeWqB7YGVLJN3pNLQpmmEk35v6wYtsMGLzSr5QBU3',
'/dns4/sfo-2.bootstrap.libp2p.io/tcp/443/wss/p2p/QmSoLnSGccFuZQJzRadHn95W2CrSFmZuTdDWP8HXaHca9z',
'/dns4/sfo-3.bootstrap.libp2p.io/tcp/443/wss/p2p/QmSoLPppuBtQSGwKDZT2M73ULpjvfd3aZ6ha4oFGL1KrGM',
'/dns4/sgp-1.bootstrap.libp2p.io/tcp/443/wss/p2p/QmSoLSafTMBsPKadTEgaXctDQVcqN88CNLHXMkTNwMKPnu',
'/dns4/nyc-1.bootstrap.libp2p.io/tcp/443/wss/p2p/QmSoLueR4xBeUbY9WZ9xGUUxunbKWcrNFTDAadQJmocnWm',
'/dns4/nyc-2.bootstrap.libp2p.io/tcp/443/wss/p2p/QmSoLV4Bbm51jM9C4gDYZQ9Cy3U6aXMJDAbzgu2fzaDs64',
'/dns4/node0.preload.ipfs.io/tcp/443/wss/p2p/QmZMxNdpMkewiVZLMRxaNxUeZpDUb34pWjZ1kZvsd16Zic',
'/dns4/node0.preload.ipfs.io/tcp/443/wss/p2p/Qmbut9Ywz9YEDrz8ySBSgWyJk41Uvm2QJPhwDJzJyGFsD6'
const bootstrapers = [
'/dns4/ams-1.bootstrap.libp2p.io/tcp/443/wss/ipfs/QmSoLer265NRgSp2LA3dPaeykiS1J6DifTC88f5uVQKNAd',
'/dns4/sfo-1.bootstrap.libp2p.io/tcp/443/wss/ipfs/QmSoLju6m7xTh3DuokvT3886QRYqxAzb1kShaanJgW36yx',
'/dns4/lon-1.bootstrap.libp2p.io/tcp/443/wss/ipfs/QmSoLMeWqB7YGVLJN3pNLQpmmEk35v6wYtsMGLzSr5QBU3',
'/dns4/sfo-2.bootstrap.libp2p.io/tcp/443/wss/ipfs/QmSoLnSGccFuZQJzRadHn95W2CrSFmZuTdDWP8HXaHca9z',
'/dns4/sfo-3.bootstrap.libp2p.io/tcp/443/wss/ipfs/QmSoLPppuBtQSGwKDZT2M73ULpjvfd3aZ6ha4oFGL1KrGM',
'/dns4/sgp-1.bootstrap.libp2p.io/tcp/443/wss/ipfs/QmSoLSafTMBsPKadTEgaXctDQVcqN88CNLHXMkTNwMKPnu',
'/dns4/nyc-1.bootstrap.libp2p.io/tcp/443/wss/ipfs/QmSoLueR4xBeUbY9WZ9xGUUxunbKWcrNFTDAadQJmocnWm',
'/dns4/nyc-2.bootstrap.libp2p.io/tcp/443/wss/ipfs/QmSoLV4Bbm51jM9C4gDYZQ9Cy3U6aXMJDAbzgu2fzaDs64',
'/dns4/wss0.bootstrap.libp2p.io/tcp/443/wss/ipfs/QmZMxNdpMkewiVZLMRxaNxUeZpDUb34pWjZ1kZvsd16Zic',
'/dns4/wss1.bootstrap.libp2p.io/tcp/443/wss/ipfs/Qmbut9Ywz9YEDrz8ySBSgWyJk41Uvm2QJPhwDJzJyGFsD6'
]
class Node extends libp2p {
constructor ({ peerInfo }) {
const wrtcStar = new WebRTCStar({ id: peerInfo.id })
const wsstar = new WebSocketStar({ id: peerInfo.id })
constructor (_options) {
const wrtcStar = new WebRTCStar({ id: _options.peerInfo.id })
const defaults = {
modules: {
transport: [
wrtcStar,
WebSockets,
wsstar
new WebSockets()
],
streamMuxer: [
Mplex,
@@ -46,15 +42,11 @@ class Node extends libp2p {
],
peerDiscovery: [
wrtcStar.discovery,
wsstar.discovery,
Bootstrap
],
dht: DHT,
pubsub: Gossipsub
]
},
config: {
peerDiscovery: {
autoDial: true,
webRTCStar: {
enabled: true
},
@@ -62,32 +54,26 @@ class Node extends libp2p {
enabled: true
},
bootstrap: {
interval: 20e3,
enabled: true,
list: bootstrapList
interval: 10000,
enabled: false,
list: bootstrapers
}
},
relay: {
enabled: true,
enabled: false,
hop: {
enabled: false,
active: false
}
},
dht: {
enabled: false
},
pubsub: {
enabled: false
EXPERIMENTAL: {
dht: false,
pubsub: false
}
},
connectionManager: {
minPeers: 10,
maxPeers: 50
}
}
super({ ...defaults, peerInfo })
super(defaultsDeep(_options, defaults))
}
}

View File

@@ -10,11 +10,9 @@ function createNode (callback) {
}
const peerIdStr = peerInfo.id.toB58String()
const webrtcAddr = `/dns4/star-signal.cloud.ipfs.team/tcp/443/wss/p2p-webrtc-star/p2p/${peerIdStr}`
const wsAddr = `/dns4/ws-star.discovery.libp2p.io/tcp/443/wss/p2p-websocket-star`
const ma = `/dns4/star-signal.cloud.ipfs.team/tcp/443/wss/p2p-webrtc-star/ipfs/${peerIdStr}`
peerInfo.multiaddrs.add(webrtcAddr)
peerInfo.multiaddrs.add(wsAddr)
peerInfo.multiaddrs.add(ma)
const node = new Node({
peerInfo

View File

@@ -1,5 +1,4 @@
/* eslint no-console: ["error", { allow: ["log"] }] */
/* eslint max-nested-callbacks: ["error", 5] */
/* eslint-disable no-console */
'use strict'
const domReady = require('detect-dom-ready')
@@ -15,7 +14,13 @@ domReady(() => {
}
node.on('peer:discovery', (peerInfo) => {
console.log('Discovered a peer:', peerInfo.id.toB58String())
console.log('Discovered a peer')
const idStr = peerInfo.id.toB58String()
console.log('Discovered: ' + idStr)
node.dial(peerInfo, (err, conn) => {
if (err) { return console.log('Failed to dial:', idStr) }
})
})
node.on('peer:connect', (peerInfo) => {
@@ -29,13 +34,13 @@ domReady(() => {
node.on('peer:disconnect', (peerInfo) => {
const idStr = peerInfo.id.toB58String()
const el = document.getElementById(idStr)
el && el.remove()
console.log('Lost connection to: ' + idStr)
document.getElementById(idStr).remove()
})
node.start((err) => {
if (err) {
return console.log(err)
return console.log('WebRTC not supported')
}
const idStr = node.peerInfo.id.toB58String()
@@ -46,9 +51,6 @@ domReady(() => {
myPeerDiv.append(idDiv)
console.log('Node is listening o/')
node.peerInfo.multiaddrs.toArray().forEach(ma => {
console.log(ma.toString())
})
// NOTE: to stop the node
// node.stop((err) => {})

View File

@@ -4,15 +4,7 @@ One of the primary goals with libp2p P2P was to get it fully working in the brow
# 1. Setting up a simple app that lists connections to other nodes
Start by installing libp2p's dependencies.
```bash
> cd ../../
> npm install
> cd examples/libp2p-in-the-browser
```
Then simply go into the folder [1](./1) and execute the following
Simple go into the folder [1](./1) and execute the following
```bash
> cd 1
@@ -20,3 +12,5 @@ Then simply go into the folder [1](./1) and execute the following
> npm start
# open your browser in port :9090
```
[Version Published on IPFS](http://ipfs.io/ipfs/Qmbc1J7ehw1dNYachbkCWPto4RsnVvqCKNVzmYEod2gXcy)

View File

@@ -23,8 +23,10 @@ class MyBundle extends libp2p {
},
config: {
dht: {
enabled: true,
kBucketSize: 20
},
EXPERIMENTAL: {
dht: true
}
}
}

View File

@@ -24,8 +24,10 @@ class MyBundle extends libp2p {
},
config: {
dht: {
enabled: true,
kBucketSize: 20
},
EXPERIMENTAL: {
dht: true
}
}
}

View File

@@ -25,9 +25,11 @@ class MyBundle extends libp2p {
},
config: {
dht: {
// dht must be enabled
enabled: true,
kBucketSize: 20
},
EXPERIMENTAL: {
// dht must be enabled
dht: true
}
}
}
@@ -67,8 +69,8 @@ You should see the output being something like:
```Bash
> node 1.js
Found it, multiaddrs are:
/ip4/127.0.0.1/tcp/63617/p2p/QmWrFXvZr9S4iDqycyoyc2zDdrT1jg9wpdenUTdd1LTar6
/ip4/192.168.86.41/tcp/63617/p2p/QmWrFXvZr9S4iDqycyoyc2zDdrT1jg9wpdenUTdd1LTar6
/ip4/127.0.0.1/tcp/63617/ipfs/QmWrFXvZr9S4iDqycyoyc2zDdrT1jg9wpdenUTdd1LTar6
/ip4/192.168.86.41/tcp/63617/ipfs/QmWrFXvZr9S4iDqycyoyc2zDdrT1jg9wpdenUTdd1LTar6
```
You have successfully used Peer Routing to find a peer that you were not directly connected. Now all you have to do is to dial to the multiaddrs you discovered.

View File

@@ -1 +0,0 @@
tmp/

View File

@@ -1,29 +0,0 @@
# Private Networking with IPFS
This example shows how to set up a private network of IPFS nodes.
## Setup
Install dependencies:
```
npm install
```
## Run
Running the example will cause two nodes with the same swarm key to be started and exchange basic information.
```
node index.js
```
### Using different keys
This example includes `TASK` comments that can be used to try the example with different swarm keys. This will
allow you to see how nodes will fail to connect if they are on different private networks and try to connect to
one another.
To change the swarm key of one of the nodes, look through `index.js` for comments starting with `TASK` to indicate
where lines are that pertain to changing the swarm key of node 2.
### Exploring the repos
Once you've run the example you can take a look at the repos in the `./tmp` directory to see how they differ, including
the swarm keys. You should see a `swarm.key` file in each of the repos and when the nodes are on the same private network
this contents of the `swarm.key` files should be the same.

View File

@@ -1,145 +0,0 @@
/* eslint no-console: ["off"] */
'use strict'
const IPFS = require('ipfs')
const assert = require('assert').strict
const writeKey = require('libp2p-pnet').generate
const path = require('path')
const fs = require('fs')
const privateLibp2pBundle = require('./libp2p-bundle')
const { mkdirp } = require('./utils')
// Create two separate repo paths so we can run two nodes and check their output
const repo1 = path.resolve('./tmp', 'repo1', '.ipfs')
const repo2 = path.resolve('./tmp', 'repo2', '.ipfs')
mkdirp(repo1)
mkdirp(repo2)
// Create a buffer and write the swarm key to it
const swarmKey = Buffer.alloc(95)
writeKey(swarmKey)
// This key is for the `TASK` mentioned in the writeFileSync calls below
const otherSwarmKey = Buffer.alloc(95)
writeKey(otherSwarmKey)
// Add the swarm key to both repos
const swarmKey1Path = path.resolve(repo1, 'swarm.key')
const swarmKey2Path = path.resolve(repo2, 'swarm.key')
fs.writeFileSync(swarmKey1Path, swarmKey)
// TASK: switch the commented out line below so we're using a different key, to see the nodes fail to connect
fs.writeFileSync(swarmKey2Path, swarmKey)
// fs.writeFileSync(swarmKey2Path, otherSwarmKey)
// Create the first ipfs node
const node1 = new IPFS({
repo: repo1,
libp2p: privateLibp2pBundle(swarmKey1Path),
config: {
Addresses: {
// Set the swarm address so we dont get port collision on the nodes
Swarm: ['/ip4/0.0.0.0/tcp/9101']
}
}
})
// Create the second ipfs node
const node2 = new IPFS({
repo: repo2,
libp2p: privateLibp2pBundle(swarmKey2Path),
config: {
Addresses: {
// Set the swarm address so we dont get port collision on the nodes
Swarm: ['/ip4/0.0.0.0/tcp/9102']
}
}
})
console.log('auto starting the nodes...')
// `nodesStarted` keeps track of how many of our nodes have started
let nodesStarted = 0
/**
* Calls `connectAndTalk` when both nodes have started
* @returns {void}
*/
const didStartHandler = () => {
if (++nodesStarted === 2) {
// If both nodes are up, start talking
connectAndTalk()
}
}
/**
* Exits the process when all started nodes have stopped
* @returns {void}
*/
const didStopHandler = () => {
if (--nodesStarted < 1) {
console.log('all nodes stopped, exiting.')
process.exit(0)
}
}
/**
* Stops the running nodes
* @param {Error} err An optional error to log to the console
* @returns {void}
*/
const doStop = (err) => {
if (err) {
console.error(err)
}
console.log('Shutting down...')
node1.stop()
node2.stop()
}
/**
* Connects the IPFS nodes and transfers data between them
* @returns {void}
*/
const connectAndTalk = async () => {
console.log('connecting the nodes...')
const node2Id = await node2.id()
const dataToAdd = Buffer.from('Hello, private friend!')
// Connect the nodes
// This will error when different private keys are used
try {
await node1.swarm.connect(node2Id.addresses[0])
} catch (err) {
return doStop(err)
}
console.log('the nodes are connected, let\'s add some data')
// Add some data to node 1
let addedCID
try {
addedCID = await node1.files.add(dataToAdd)
} catch (err) {
return doStop(err)
}
console.log(`added ${addedCID[0].path} to the node1`)
// Retrieve the data from node 2
let cattedData
try {
cattedData = await node2.files.cat(addedCID[0].path)
} catch (err) {
return doStop(err)
}
assert.deepEqual(cattedData.toString(), dataToAdd.toString(), 'Should have equal data')
console.log(`successfully retrieved "${dataToAdd.toString()}" from node2`)
doStop()
}
// Wait for the nodes to boot
node1.once('start', didStartHandler)
node2.once('start', didStartHandler)
// Listen for the nodes stopping so we can cleanup
node1.once('stop', didStopHandler)
node2.once('stop', didStopHandler)

View File

@@ -1,60 +0,0 @@
'use strict'
const Libp2p = require('libp2p')
const TCP = require('libp2p-tcp')
const MPLEX = require('libp2p-mplex')
const SECIO = require('libp2p-secio')
const fs = require('fs')
const Protector = require('libp2p-pnet')
/**
* Options for the libp2p bundle
* @typedef {Object} libp2pBundle~options
* @property {PeerInfo} peerInfo - The PeerInfo of the IPFS node
* @property {PeerBook} peerBook - The PeerBook of the IPFS node
* @property {Object} config - The config of the IPFS node
* @property {Object} options - The options given to the IPFS node
*/
/**
* privateLibp2pBundle returns a libp2p bundle function that will use the swarm
* key at the given `swarmKeyPath` to create the Protector
*
* @param {string} swarmKeyPath The path to our swarm key
* @returns {libp2pBundle} Returns a libp2pBundle function for use in IPFS creation
*/
const privateLibp2pBundle = (swarmKeyPath) => {
/**
* This is the bundle we will use to create our fully customized libp2p bundle.
*
* @param {libp2pBundle~options} opts The options to use when generating the libp2p node
* @returns {Libp2p} Our new libp2p node
*/
const libp2pBundle = (opts) => {
// Set convenience variables to clearly showcase some of the useful things that are available
const peerInfo = opts.peerInfo
const peerBook = opts.peerBook
// Build and return our libp2p node
return new Libp2p({
peerInfo,
peerBook,
modules: {
transport: [TCP], // We're only using the TCP transport for this example
streamMuxer: [MPLEX], // We're only using mplex muxing
// Let's make sure to use identifying crypto in our pnet since the protector doesn't
// care about node identity, and only the presence of private keys
connEncryption: [SECIO],
// Leave peer discovery empty, we don't want to find peers. We could omit the property, but it's
// being left in for explicit readability.
// We should explicitly dial pnet peers, or use a custom discovery service for finding nodes in our pnet
peerDiscovery: [],
connProtector: new Protector(fs.readFileSync(swarmKeyPath))
}
})
}
return libp2pBundle
}
module.exports = privateLibp2pBundle

View File

@@ -1,21 +0,0 @@
{
"name": "pnet-ipfs-example",
"version": "1.0.0",
"description": "An example of private networking with IPFS",
"main": "index.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1",
"start": "node index.js"
},
"keywords": [],
"author": "",
"license": "ISC",
"dependencies": {
"ipfs": "~0.32.3",
"libp2p": "~0.23.1",
"libp2p-mplex": "~0.8.2",
"libp2p-pnet": "../../",
"libp2p-secio": "~0.10.0",
"libp2p-tcp": "~0.13.0"
}
}

View File

@@ -1,28 +0,0 @@
'use strict'
const fs = require('fs')
const path = require('path')
/**
* mkdirp recursively creates needed folders for the given dir path
* @param {string} dir
* @returns {string} The path that was created
*/
module.exports.mkdirp = (dir) => {
return path
.resolve(dir)
.split(path.sep)
.reduce((acc, cur) => {
const currentPath = path.normalize(acc + path.sep + cur)
try {
fs.statSync(currentPath)
} catch (e) {
if (e.code === 'ENOENT') {
fs.mkdirSync(currentPath)
} else {
throw e
}
}
return currentPath
}, '')
}

View File

@@ -169,7 +169,7 @@ You can see this working on example [3.js](./3.js). The result should look like
> node 3.js
from 1 to 2
Addresses by which both peers are connected
node 1 to node 2: /ip4/127.0.0.1/tcp/50629/p2p/QmZwMKTo6wG4Te9A6M2eJnWDpR8uhsGed4YRegnV5DcKiv
node 2 to node 1: /ip4/127.0.0.1/tcp/50630/p2p/QmRgormJQeDyXhDKma11eUtksoh8vWmeBoxghVt4meauW9
node 1 to node 2: /ip4/127.0.0.1/tcp/50629/ipfs/QmZwMKTo6wG4Te9A6M2eJnWDpR8uhsGed4YRegnV5DcKiv
node 2 to node 1: /ip4/127.0.0.1/tcp/50630/ipfs/QmRgormJQeDyXhDKma11eUtksoh8vWmeBoxghVt4meauW9
from 2 to 1
```

View File

@@ -7,7 +7,6 @@ const Mplex = require('libp2p-mplex')
const SECIO = require('libp2p-secio')
const PeerInfo = require('peer-info')
const MulticastDNS = require('libp2p-mdns')
const Gossipsub = require('libp2p-gossipsub')
const defaultsDeep = require('@nodeutils/defaults-deep')
const waterfall = require('async/waterfall')
const parallel = require('async/parallel')
@@ -20,8 +19,7 @@ class MyBundle extends libp2p {
transport: [ TCP ],
streamMuxer: [ Mplex ],
connEncryption: [ SECIO ],
peerDiscovery: [ MulticastDNS ],
pubsub: Gossipsub
peerDiscovery: [ MulticastDNS ]
},
config: {
peerDiscovery: {
@@ -30,9 +28,8 @@ class MyBundle extends libp2p {
enabled: true
}
},
pubsub: {
enabled: true,
emitSelf: true
EXPERIMENTAL: {
pubsub: true
}
}
}
@@ -65,39 +62,25 @@ parallel([
const node1 = nodes[0]
const node2 = nodes[1]
node1.once('peer:connect', (peer) => {
console.log('connected to %s', peer.id.toB58String())
series([
(cb) => node1.once('peer:discovery', (peer) => node1.dial(peer, cb)),
(cb) => setTimeout(cb, 500)
], (err) => {
if (err) { throw err }
series([
// node1 subscribes to "news"
(cb) => node1.pubsub.subscribe(
'news',
(msg) => console.log(`node1 received: ${msg.data.toString()}`),
cb
),
(cb) => setTimeout(cb, 500),
// node2 subscribes to "news"
(cb) => node2.pubsub.subscribe(
'news',
(msg) => console.log(`node2 received: ${msg.data.toString()}`),
cb
),
(cb) => setTimeout(cb, 500),
// node2 publishes "news" every second
(cb) => {
// Subscribe to the topic 'news'
node1.pubsub.subscribe('news',
(msg) => console.log(msg.from, msg.data.toString()),
() => {
setInterval(() => {
// Publish the message on topic 'news'
node2.pubsub.publish(
'news',
Buffer.from('Bird bird bird, bird is the word!'),
(err) => {
if (err) { throw err }
}
() => {}
)
}, 1000)
cb()
},
], (err) => {
if (err) { throw err }
})
}
)
})
})

View File

@@ -1,6 +1,6 @@
# Publish Subscribe
Publish Subscribe is also included on the stack. Currently, we have two PubSub implementation available [libp2p-floodsub](https://github.com/libp2p/js-libp2p-floodsub) and [libp2p-gossipsub](https://github.com/ChainSafe/gossipsub-js), with many more being researched at [research-pubsub](https://github.com/libp2p/research-pubsub).
Publish Subscribe is also included on the stack. Currently, we have on PubSub implementation which we ship by default [libp2p-floodsub](https://github.com/libp2p/js-libp2p-floodsub), with many more being researched at [research-pubsub](https://github.com/libp2p/research-pubsub).
We've seen many interesting use cases appear with this, here are some highlights:
@@ -12,43 +12,29 @@ We've seen many interesting use cases appear with this, here are some highlights
For this example, we will use MulticastDNS for automatic Peer Discovery. This example is based the previous examples found in [Discovery Mechanisms](../discovery-mechanisms). You can find the complete version at [1.js](./1.js).
Using PubSub is super simple, you only need to provide the implementation of your choice and you are ready to go. No need for extra configuration.
Using PubSub is super simple, all you have to do is start a libp2p node, PubSub will be enabled by default.
```JavaScript
node1.once('peer:connect', (peer) => {
console.log('connected to %s', peer.id.toB58String())
series([
(cb) => node1.once('peer:discovery', (peer) => node1.dial(peer, cb)),
(cb) => setTimeout(cb, 500)
], (err) => {
if (err) { throw err }
series([
// node1 subscribes to "news"
(cb) => node1.pubsub.subscribe(
'news',
(msg) => console.log(`node1 received: ${msg.data.toString()}`),
cb
),
(cb) => setTimeout(cb, 500),
// node2 subscribes to "news"
(cb) => node2.pubsub.subscribe(
'news',
(msg) => console.log(`node2 received: ${msg.data.toString()}`),
cb
),
(cb) => setTimeout(cb, 500),
// node2 publishes "news" every second
(cb) => {
// Subscribe to the topic 'news'
node1.pubsub.subscribe('news',
(msg) => console.log(msg.from, msg.data.toString()),
() => {
setInterval(() => {
// Publish the message on topic 'news'
node2.pubsub.publish(
'news',
Buffer.from('Bird bird bird, bird is the word!'),
(err) => {
if (err) { throw err }
}
() => {}
)
}, 1000)
cb()
},
], (err) => {
if (err) { throw err }
})
}
)
})
```
@@ -56,30 +42,11 @@ The output of the program should look like:
```
> node 1.js
connected to QmWpvkKm6qHLhoxpWrTswY6UMNWDyn8hN265Qp9ZYvgS82
node2 received: Bird bird bird, bird is the word!
node1 received: Bird bird bird, bird is the word!
node2 received: Bird bird bird, bird is the word!
node1 received: Bird bird bird, bird is the word!
```
You can change the pubsub `emitSelf` option if you don't want the publishing node to receive its own messages.
```JavaScript
const defaults = {
config: {
peerDiscovery: {
mdns: {
interval: 2000,
enabled: true
}
},
pubsub: {
enabled: true,
emitSelf: false
}
}
}
QmWpvkKm6qHLhoxpWrTswY6UMNWDyn8hN265Qp9ZYvgS82 Bird bird bird, bird is the word!
QmWpvkKm6qHLhoxpWrTswY6UMNWDyn8hN265Qp9ZYvgS82 Bird bird bird, bird is the word!
QmWpvkKm6qHLhoxpWrTswY6UMNWDyn8hN265Qp9ZYvgS82 Bird bird bird, bird is the word!
QmWpvkKm6qHLhoxpWrTswY6UMNWDyn8hN265Qp9ZYvgS82 Bird bird bird, bird is the word!
QmWpvkKm6qHLhoxpWrTswY6UMNWDyn8hN265Qp9ZYvgS82 Bird bird bird, bird is the word!
```
## 2. Future work

View File

@@ -88,8 +88,8 @@ Running this should result in something like:
> node 1.js
node has started (true/false): true
listening on:
/ip4/127.0.0.1/tcp/61329/p2p/QmW2cKTakTYqbQkUzBTEGXgWYFj1YEPeUndE1YWs6CBzDQ
/ip4/192.168.2.156/tcp/61329/p2p/QmW2cKTakTYqbQkUzBTEGXgWYFj1YEPeUndE1YWs6CBzDQ
/ip4/127.0.0.1/tcp/61329/ipfs/QmW2cKTakTYqbQkUzBTEGXgWYFj1YEPeUndE1YWs6CBzDQ
/ip4/192.168.2.156/tcp/61329/ipfs/QmW2cKTakTYqbQkUzBTEGXgWYFj1YEPeUndE1YWs6CBzDQ
```
That `QmW2cKTakTYqbQkUzBTEGXgWYFj1YEPeUndE1YWs6CBzDQ` is the PeerId that was created during the PeerInfo generation.
@@ -175,11 +175,11 @@ The result should be look like:
```bash
> node 2.js
node 1 is listening on:
/ip4/127.0.0.1/tcp/62279/p2p/QmeM4wNWv1uci7UJjUXZYfvcy9uqAbw7G9icuxdqy88Mj9
/ip4/192.168.2.156/tcp/62279/p2p/QmeM4wNWv1uci7UJjUXZYfvcy9uqAbw7G9icuxdqy88Mj9
/ip4/127.0.0.1/tcp/62279/ipfs/QmeM4wNWv1uci7UJjUXZYfvcy9uqAbw7G9icuxdqy88Mj9
/ip4/192.168.2.156/tcp/62279/ipfs/QmeM4wNWv1uci7UJjUXZYfvcy9uqAbw7G9icuxdqy88Mj9
node 2 is listening on:
/ip4/127.0.0.1/tcp/62278/p2p/QmWp58xJgzbouNJcyiNNTpZuqQCJU8jf6ixc7TZT9xEZhV
/ip4/192.168.2.156/tcp/62278/p2p/QmWp58xJgzbouNJcyiNNTpZuqQCJU8jf6ixc7TZT9xEZhV
/ip4/127.0.0.1/tcp/62278/ipfs/QmWp58xJgzbouNJcyiNNTpZuqQCJU8jf6ixc7TZT9xEZhV
/ip4/192.168.2.156/tcp/62278/ipfs/QmWp58xJgzbouNJcyiNNTpZuqQCJU8jf6ixc7TZT9xEZhV
Hello p2p world!
```
@@ -304,14 +304,14 @@ If everything was set correctly, you now should see the following after you run
```Bash
> node 3.js
node 1 is listening on:
/ip4/127.0.0.1/tcp/62620/p2p/QmWpWmcVJkF6EpmAaVDauku8g1uFGuxPsGP35XZp9GYEqs
/ip4/192.168.2.156/tcp/62620/p2p/QmWpWmcVJkF6EpmAaVDauku8g1uFGuxPsGP35XZp9GYEqs
/ip4/127.0.0.1/tcp/62620/ipfs/QmWpWmcVJkF6EpmAaVDauku8g1uFGuxPsGP35XZp9GYEqs
/ip4/192.168.2.156/tcp/62620/ipfs/QmWpWmcVJkF6EpmAaVDauku8g1uFGuxPsGP35XZp9GYEqs
node 2 is listening on:
/ip4/127.0.0.1/tcp/10000/ws/p2p/QmWAQtWdzWXibgfyc7WRHhhv6MdqVKzXvyfSTnN2aAvixX
/ip4/127.0.0.1/tcp/62619/p2p/QmWAQtWdzWXibgfyc7WRHhhv6MdqVKzXvyfSTnN2aAvixX
/ip4/192.168.2.156/tcp/62619/p2p/QmWAQtWdzWXibgfyc7WRHhhv6MdqVKzXvyfSTnN2aAvixX
/ip4/127.0.0.1/tcp/10000/ws/ipfs/QmWAQtWdzWXibgfyc7WRHhhv6MdqVKzXvyfSTnN2aAvixX
/ip4/127.0.0.1/tcp/62619/ipfs/QmWAQtWdzWXibgfyc7WRHhhv6MdqVKzXvyfSTnN2aAvixX
/ip4/192.168.2.156/tcp/62619/ipfs/QmWAQtWdzWXibgfyc7WRHhhv6MdqVKzXvyfSTnN2aAvixX
node 3 is listening on:
/ip4/127.0.0.1/tcp/20000/ws/p2p/QmVq1PWh3VSDYdFqYMtqp4YQyXcrH27N7968tGdM1VQPj1
/ip4/127.0.0.1/tcp/20000/ws/ipfs/QmVq1PWh3VSDYdFqYMtqp4YQyXcrH27N7968tGdM1VQPj1
node 3 failed to dial to node 1 with: No available transport to dial to
node 1 dialed to node 2 successfully
node 2 dialed to node 3 successfully

View File

@@ -3,7 +3,7 @@
"Package",
"Version",
"Deps",
"CI/Travis",
"CI",
"Coverage",
"Lead Maintainer"
],

View File

@@ -1,13 +1,9 @@
{
"name": "libp2p",
"version": "0.26.1",
"description": "JavaScript implementation of libp2p, a modular peer to peer network stack",
"version": "0.24.0-rc.2",
"description": "JavaScript base class for libp2p bundles",
"leadMaintainer": "Jacob Heun <jacobheun@gmail.com>",
"main": "src/index.js",
"files": [
"dist",
"src"
],
"scripts": {
"lint": "aegir lint",
"build": "aegir build",
@@ -17,106 +13,79 @@
"release": "aegir release -t node -t browser",
"release-minor": "aegir release --type minor -t node -t browser",
"release-major": "aegir release --type major -t node -t browser",
"coverage": "nyc --reporter=text --reporter=lcov npm run test:node"
"coverage": "aegir coverage",
"coverage-publish": "aegir coverage --provider coveralls"
},
"repository": {
"type": "git",
"url": "https://github.com/libp2p/js-libp2p.git"
},
"keywords": [
"libp2p",
"network",
"p2p",
"peer",
"peer-to-peer",
"IPFS"
],
"engines": {
"node": ">=6.0.0",
"npm": ">=3.0.0"
},
"license": "MIT",
"bugs": {
"url": "https://github.com/libp2p/js-libp2p/issues"
},
"homepage": "https://libp2p.io",
"license": "MIT",
"homepage": "https://github.com/libp2p/js-libp2p",
"browser": {
"joi": "joi-browser",
"./test/utils/bundle-nodejs": "./test/utils/bundle-browser"
},
"engines": {
"node": ">=10.0.0",
"npm": ">=6.0.0"
},
"dependencies": {
"async": "^2.6.2",
"bignumber.js": "^9.0.0",
"class-is": "^1.1.0",
"debug": "^4.1.1",
"async": "^2.6.1",
"debug": "^4.0.1",
"err-code": "^1.1.2",
"fsm-event": "^2.1.0",
"hashlru": "^2.3.0",
"interface-connection": "~0.3.3",
"latency-monitor": "~0.2.1",
"libp2p-crypto": "~0.16.1",
"libp2p-websockets": "^0.12.2",
"mafmt": "^6.0.7",
"merge-options": "^1.0.1",
"moving-average": "^1.0.0",
"multiaddr": "^6.1.0",
"multistream-select": "~0.14.6",
"once": "^1.4.0",
"peer-book": "^0.9.1",
"peer-id": "^0.12.2",
"peer-info": "~0.15.1",
"pull-cat": "^1.1.11",
"pull-defer": "~0.2.3",
"pull-handshake": "^1.1.4",
"pull-reader": "^1.3.1",
"pull-stream": "^3.6.9",
"promisify-es6": "^1.0.3",
"protons": "^1.0.1",
"retimer": "^2.0.0",
"superstruct": "^0.6.0",
"xsalsa20": "^1.0.2"
"joi": "^13.6.0",
"joi-browser": "^13.4.0",
"libp2p-connection-manager": "~0.0.2",
"libp2p-floodsub": "~0.15.0",
"libp2p-ping": "~0.8.0",
"libp2p-switch": "~0.41.1",
"libp2p-websockets": "~0.12.0",
"mafmt": "^6.0.2",
"multiaddr": "^5.0.0",
"nock": "^9.4.3",
"peer-book": "~0.8.0",
"peer-id": "~0.11.0",
"peer-info": "~0.14.1"
},
"devDependencies": {
"@nodeutils/defaults-deep": "^1.1.0",
"aegir": "^20.0.0",
"chai": "^4.2.0",
"aegir": "^15.2.0",
"chai": "^4.1.2",
"chai-checkmark": "^1.0.1",
"cids": "^0.7.1",
"cids": "~0.5.3",
"dirty-chai": "^2.0.1",
"electron-webrtc": "^0.3.0",
"interface-datastore": "^0.6.0",
"libp2p-bootstrap": "^0.9.7",
"libp2p-delegated-content-routing": "^0.2.2",
"libp2p-delegated-peer-routing": "^0.2.2",
"libp2p-floodsub": "~0.17.0",
"libp2p-gossipsub": "~0.0.4",
"libp2p-kad-dht": "^0.15.3",
"libp2p-mdns": "^0.12.3",
"libp2p-mplex": "^0.8.4",
"libp2p-pnet": "~0.1.0",
"libp2p-secio": "^0.11.1",
"libp2p-spdy": "^0.13.2",
"libp2p-tcp": "^0.13.0",
"libp2p-webrtc-star": "^0.16.1",
"libp2p-websocket-star": "~0.10.2",
"libp2p-websocket-star-rendezvous": "~0.4.1",
"electron-webrtc": "~0.3.0",
"libp2p-bootstrap": "~0.9.3",
"libp2p-circuit": "~0.2.1",
"libp2p-delegated-content-routing": "~0.2.2",
"libp2p-delegated-peer-routing": "~0.2.2",
"libp2p-kad-dht": "~0.10.5",
"libp2p-mdns": "~0.12.0",
"libp2p-mplex": "~0.8.2",
"libp2p-secio": "~0.10.0",
"libp2p-spdy": "~0.12.1",
"libp2p-tcp": "~0.13.0",
"libp2p-webrtc-star": "~0.15.5",
"libp2p-websocket-star": "~0.8.1",
"libp2p-websocket-star-rendezvous": "~0.2.3",
"lodash.times": "^4.3.2",
"nock": "^10.0.6",
"portfinder": "^1.0.20",
"pull-goodbye": "0.0.2",
"pull-length-prefixed": "^1.3.3",
"pull-mplex": "^0.1.2",
"pull-pair": "^1.1.0",
"pull-protocol-buffers": "~0.1.2",
"pull-serializer": "^0.3.2",
"sinon": "^7.2.7",
"wrtc": "^0.4.1"
"pull-serializer": "~0.3.2",
"pull-stream": "^3.6.9",
"sinon": "^6.3.4",
"webrtcsupport": "^2.2.0",
"wrtc": "~0.2.0"
},
"contributors": [
"Aditya Bose <13054902+adbose@users.noreply.github.com>",
"Alan Shaw <alan.shaw@protocol.ai>",
"Alan Shaw <alan@tableflip.io>",
"Alex Potsides <alex@achingbrain.net>",
"Andrew Nesbitt <andrewnez@gmail.com>",
"Chris Bratlien <chrisbratlien@gmail.com>",
"Chris Dostert <chrisdostert@users.noreply.github.com>",
"Daijiro Wachi <daijiro.wachi@gmail.com>",
@@ -127,9 +96,6 @@
"Florian-Merle <florian.david.merle@gmail.com>",
"Friedel Ziegelmayer <dignifiedquire@gmail.com>",
"Giovanni T. Parra <fiatjaf@gmail.com>",
"Guy Sviry <32539816+guysv@users.noreply.github.com>",
"Henrique Dias <hacdias@gmail.com>",
"Hugo Dias <mail@hugodias.me>",
"Hugo Dias <hugomrdias@gmail.com>",
"Irakli Gozalishvili <rfobic@gmail.com>",
"Jacob Heun <jacobheun@gmail.com>",
@@ -139,26 +105,17 @@
"Kevin Kwok <antimatter15@gmail.com>",
"Lars Gierth <lgierth@users.noreply.github.com>",
"Maciej Krüger <mkg20001@gmail.com>",
"Marcin Tojek <mtojek@users.noreply.github.com>",
"Nuno Nogueira <nunofmn@gmail.com>",
"Pedro Teixeira <pedro@protocol.ai>",
"Pedro Teixeira <i@pgte.me>",
"RasmusErik Voel Jensen <github@solsort.com>",
"Richard Littauer <richard.littauer@gmail.com>",
"Ryan Bell <ryan@piing.net>",
"Soeren <nikorpoulsen@gmail.com>",
"Sönke Hahn <soenkehahn@gmail.com>",
"Thomas Eizinger <thomas@eizinger.io>",
"Tiago Alves <alvesjtiago@gmail.com>",
"Vasco Santos <vasco.santos@moxy.studio>",
"Vasco Santos <vasco.santos@ua.pt>",
"Volker Mische <volker.mische@gmail.com>",
"Yusef Napora <yusef@napora.org>",
"Zane Starr <zcstarr@gmail.com>",
"a1300 <a1300@users.noreply.github.com>",
"ebinks <elizabethjbinks@gmail.com>",
"greenkeeperio-bot <support@greenkeeper.io>",
"isan_rivkin <isanrivkin@gmail.com>",
"mayerwin <mayerwin@users.noreply.github.com>",
"ᴠɪᴄᴛᴏʀ ʙᴊᴇʟᴋʜᴏʟᴍ <victorbjelkholm@gmail.com>"
]

View File

@@ -59,7 +59,7 @@ test('story 1 - peerA', (t) => {
t.ifErr(err, 'created Node successfully')
t.ok(node.isStarted(), 'PeerA is Running')
const peerBAddr = `/ip4/127.0.0.1/tcp/10001/p2p/${PeerB.id}`
const peerBAddr = `/ip4/127.0.0.1/tcp/10001/ipfs/${PeerB.id}`
node.handle('/time/1.0.0', (protocol, conn) => {
pull(

View File

@@ -59,7 +59,7 @@ test('story 1 - peerA', (t) => {
t.ifErr(err, 'created Node successfully')
t.ok(node.isStarted(), 'PeerB is Running')
const peerAAddr = `/ip4/127.0.0.1/tcp/10000/p2p/${PeerA.id}`
const peerAAddr = `/ip4/127.0.0.1/tcp/10000/ipfs/${PeerA.id}`
node.handle('/echo/1.0.0', (protocol, conn) => {
pull(

View File

@@ -33,7 +33,7 @@ test('story 1 - peerA', (t) => {
t.ifErr(err, 'created Node')
t.ok(node.isStarted(), 'PeerA is running')
const PeerBAddr = `/ip4/127.0.0.1/tcp/10001/p2p/${PeerB.id}`
const PeerBAddr = `/ip4/127.0.0.1/tcp/10001/ipfs/${PeerB.id}`
node.dial(PeerBAddr, '/echo/1.0.0', (err, conn) => {
t.ifErr(err, 'dial successful')

View File

@@ -33,7 +33,7 @@ test('story 2 - peerA', (t) => {
t.ifErr(err, 'created Node')
t.ok(node.isStarted(), 'PeerA is running')
const PeerBAddr = `/ip4/127.0.0.1/tcp/10001/p2p/${PeerB.id}`
const PeerBAddr = `/ip4/127.0.0.1/tcp/10001/ws/ipfs/${PeerB.id}`
node.dial(PeerBAddr, '/echo/1.0.0', (err, conn) => {
t.ifErr(err, 'dial successful')

View File

@@ -32,7 +32,7 @@ test('story 3 - peerA', (t) => {
t.ifErr(err, 'created Node')
t.ok(node.isStarted(), 'PeerA is running')
const PeerBAddr = `/ip4/127.0.0.1/tcp/10001/ws/p2p/${PeerB.id}`
const PeerBAddr = `/ip4/127.0.0.1/tcp/10001/ws/ipfs/${PeerB.id}`
setTimeout(() => node.dial(PeerBAddr, '/echo/1.0.0', (err, conn) => {
t.ok(err, 'dial failed')

View File

@@ -32,7 +32,7 @@ test('story 3 - peerB', (t) => {
t.ifErr(err, 'created Node')
t.ok(node.isStarted(), 'PeerA is running')
const PeerAAddr = `/ip4/127.0.0.1/tcp/10000/ws/p2p/${PeerA.id}`
const PeerAAddr = `/ip4/127.0.0.1/tcp/10000/ws/ipfs/${PeerA.id}`
setTimeout(() => node.dial(PeerAAddr, '/echo/1.0.0', (err, conn) => {
t.ok(err, 'dial failed')

View File

@@ -1,128 +0,0 @@
EDIT: This document is outdated and here only for historical purposes
NOTE: This document is structured in an `if-then/else[if]-then` manner, each line is a precondition for following lines with a higher number of indentation
Example:
- if there are apples
- eat them
- if not, check for pears
- then eat them
- if not, check for cherries
- then eat them
Or,
- if there are apples
- eat them
- if not
- check for pears
- then eat them
- if not
- check for cherries
- then eat them
In order to minimize nesting, the first example is preferred
# Relay flow
## Relay transport (dialer/listener)
- ### Dial over a relay
- See if there is a relay that's already connected to the destination peer, if not
- Ask all the peer's known relays to dial the destination peer until an active relay (one that can dial on behalf of other peers), or a relay that may have recently acquired a connection to the destination peer is successful.
- If successful
- Write the `/ipfs/relay/circuit/1.0.0` header to the relay, followed by the destination address
- e.g. `/ipfs/relay/circuit/1.0.0\n/p2p-circuit/ipfs/QmDest`.
- If no relays could connect, fail the same way a regular transport would
- Once the connection has been established, the swarm should treat it as a regular connection,
- i.e. muxing, encrypt, etc should all be performed on the relayed connection
- ### Listen for relayed connections
- Peer mounts the `/ipfs/relay/circuit/1.0.0` proto and listens for relayed connections
- A connection arrives
- read the address of the source peer from the incoming connection stream
- if valid, create a PeerInfo object for that peer and add the incoming address to its multiaddresses list
- pass the connection to `protocolMuxer(swarm.protocols, conn)` to have it go through the regular muxing/encryption flow
- ### Relay discovery and static relay addresses in swarm config
- #### Relay address in swarm config
- A peer has relay addresses in its swarm config section
- On node startup, connect to the relays in swarm config
- if successful add address to swarms PeerInfo's multiaddresses
- `identify` should take care of announcing that the peer is reachable over the listed relays
- #### Passive relay discovery
- A peer that can dial over `/ipfs/relay/circuit/1.0.0` listens for the `peer-mux-established` swarm event, every time a new muxed connection arrives, it checks if the incoming peer is a relay. (How would this work? Some way of discovering if its a relay is required.)
- *Useful in cases when the peer/node doesn't know of any relays on startup and also, to learn of as many additional relays in the network as possible*
- *Useful during startup, when connecting to bootstrap nodes. It allows us to implicitly learn if its a relay without having to explicitly add `/p2p-circuit` addresses to the bootstrap list*
- *Also useful if the relay communicates its capabilities upon connecting to it, as to avoid additional unnecessary requests/queries. I.e. if it supports weather its able to forward connections and weather it supports the `ls` or other commands.*
- *Should it be possible to disable passive relay discovery?*
- This could be useful when the peer wants to be reachable **only** over the listed relays
- If the incoming peer is a relay, send an `ls` and record its peers
## Relay Nodes
- ### Passive relay node
- *A passive relay does not explicitly dial into any requested peer, only those that it's swarm already has connections to.*
- When the relay gets a request, read the the destination peer's multiaddr from the connection stream and if its a valid address and peer id
- check its swarm's peerbook(?) see if its a known peer, if it is
- use the swarms existing connection and
- send the multistream header and the source peer address to the dest peer
- e.g. `/ipfs/relay/circuit/1.0.0\n/p2p-circuit/ipfs/QmSource`
- circuit the source and dest connections
- if couldn't dial, or the connection/stream to the dest peer closed prematurelly
- close the src stream
- ### Active relay node
- *An active relay node can dial other peers even if its swarm doesnt know about those peers*
- When the relay gets a request, read the the destination peer's multiaddr from the connection stream and if its a valid address and peer id
- use the swarm to dial to the dest node
- send the multistream header and the source peer address to the dest peer
- e.g. `/ipfs/relay/circuit/1.0.0\n/p2p-circuit/ipfs/QmSource`
- circuit the source and dest connections
- if couldn't dial, or the connection/stream to the dest peer closed prematurely
- close the src stream
- ### `ls` command
- *A relay node can allow the peers known to it's swarm to be listed*
- *this should be possible to enable/disable from the config*
- when a relay gets the `ls` request
- if enabled, get its swarm's peerbook's known peers and return their ids and multiaddrs
- e.g `[{id: /ipfs/QmPeerId, addrs: ['ma1', 'ma2', 'ma3']}, ...]`
- if disabled, respond with `na`
## Relay Implementation notes
- ### Relay transport
- Currently I've implemented the dialer and listener parts of the relay as a transport, meaning that it *tries* to implement the `interface-transport` interface as closely as possible. This seems to work pretty well and it's makes the dialer/listener parts really easy to plug in into the swarm. I think this is the cleanest solution.
- ### `circuit-relay`
- This is implemented as a separate piece (not a transport), and it can be enabled/disabled with a config. The transport listener however, will do the initial parsing of the incoming header and figure out weather it's a connection that's needs to be handled by the circuit-relay, or its a connection that is being relayed from a circuit-relay.
## Relay swarm integration
- The relay transport is mounted explicitly by calling the `swarm.connection.relay(config.relay)` from libp2p
- Swarm will register the dialer and listener using the swarm `transport.add` and `transport.listen` methods
- ### Listener
- the listener registers itself as a multistream handler on the `/ipfs/relay/circuit/1.0.0` proto
- if `circuit-relay` is enabled, the listener will delegate connections to it if appropriate
- when the listener receives a connection, it will read the multiaddr and determine if its a connection that needs to be relayed, or its a connection that is being relayed
- ### Dialer
- When the swarm attempts to dial to a peer, it will filter the protocols that the peer can be reached on
- *The relay will be used in two cases*
- If the peer has an explicit relay address that it can be reached on
- no other transport is available
- The relay will attempt to dial the peer over that relay
- If no explicit relay address is provided
- no other transport is available
- A generic circuit address will be added to the peers multiaddr list
- i.e. `/p2p-circuit/ipfs/QmDest`
- If another transport is available, then use that instead of the relay

View File

@@ -1,156 +0,0 @@
# js-libp2p-circuit
> Node.js implementation of the Circuit module that libp2p uses, which implements the [interface-connection](https://github.com/libp2p/interface-connection) interface for dial/listen.
**Note**: git history prior to merging into js-libp2p can be found in the original repository, https://github.com/libp2p/js-libp2p-circuit.
`libp2p-circuit` implements the circuit-relay mechanism that allows nodes that don't speak the same protocol to communicate using a third _relay_ node.
This module uses [pull-streams](https://pull-stream.github.io) for all stream based interfaces.
### Why?
`circuit-relaying` uses additional nodes in order to transfer traffic between two otherwise unreachable nodes. This allows nodes that don't speak the same protocols or are running in limited environments, e.g. browsers and IoT devices, to communicate, which would otherwise be impossible given the fact that for example browsers don't have any socket support and as such cannot be directly dialed.
The use of circuit-relaying is not limited to routing traffic between browser nodes, other uses include:
- routing traffic between private nets and circumventing NAT layers
- route mangling for better privacy (matreshka/shallot dialing).
It's also possible to use it for clients that implement exotic transports such as devices that only have bluetooth radios to be reachable over bluetooth enabled relays and become full p2p nodes.
### libp2p-circuit and IPFS
Prior to `libp2p-circuit` there was a rift in the IPFS network, were IPFS nodes could only access content from nodes that speak the same protocol, for example TCP only nodes could only dial to other TCP only nodes, same for any other protocol combination. In practice, this limitation was most visible in JS-IPFS browser nodes, since they can only dial out but not be dialed in over WebRTC or WebSockets, hence any content that the browser node held was not reachable by the rest of the network even through it was announced on the DHT. Non browser IPFS nodes would usually speak more than one protocol such as TCP, WebSockets and/or WebRTC, this made the problem less severe outside of the browser. `libp2p-circuit` solves this problem completely, as long as there are `relay nodes` capable of routing traffic between those nodes their content should be available to the rest of the IPFS network.
## Table of Contents
- [Install](#install)
- [npm](#npm)
- [Usage](#usage)
- [Example](#example)
- [This module uses `pull-streams`](#this-module-uses-pull-streams)
- [Converting `pull-streams` to Node.js Streams](#converting-pull-streams-to-nodejs-streams)
- [API](#api)
- [Contribute](#contribute)
- [License](#license)
## Usage
### Example
#### Create dialer/listener
```js
const Circuit = require('libp2p-circuit')
const multiaddr = require('multiaddr')
const pull = require('pull-stream')
const mh1 = multiaddr('/p2p-circuit/ipfs/QmHash') // dial /ipfs/QmHash over any circuit
const circuit = new Circuit(swarmInstance, options) // pass swarm instance and options
const listener = circuit.createListener(mh1, (connection) => {
console.log('new connection opened')
pull(
pull.values(['hello']),
socket
)
})
listener.listen(() => {
console.log('listening')
pull(
circuit.dial(mh1),
pull.log,
pull.onEnd(() => {
circuit.close()
})
)
})
```
Outputs:
```sh
listening
new connection opened
hello
```
#### Create `relay`
```js
const Relay = require('libp2p-circuit').Relay
const relay = new Relay(options)
relay.mount(swarmInstance) // start relaying traffic
```
### This module uses `pull-streams`
We expose a streaming interface based on `pull-streams`, rather then on the Node.js core streams implementation (aka Node.js streams). `pull-streams` offers us a better mechanism for error handling and flow control guarantees. If you would like to know more about why we did this, see the discussion at this [issue](https://github.com/ipfs/js-ipfs/issues/362).
You can learn more about pull-streams at:
- [The history of Node.js streams, nodebp April 2014](https://www.youtube.com/watch?v=g5ewQEuXjsQ)
- [The history of streams, 2016](http://dominictarr.com/post/145135293917/history-of-streams)
- [pull-streams, the simple streaming primitive](http://dominictarr.com/post/149248845122/pull-streams-pull-streams-are-a-very-simple)
- [pull-streams documentation](https://pull-stream.github.io/)
#### Converting `pull-streams` to Node.js Streams
If you are a Node.js streams user, you can convert a pull-stream to a Node.js stream using the module [`pull-stream-to-stream`](https://github.com/dominictarr/pull-stream-to-stream), giving you an instance of a Node.js stream that is linked to the pull-stream. For example:
```js
const pullToStream = require('pull-stream-to-stream')
const nodeStreamInstance = pullToStream(pullStreamInstance)
// nodeStreamInstance is an instance of a Node.js Stream
```
To learn more about this utility, visit https://pull-stream.github.io/#pull-stream-to-stream.
## API
[![](https://raw.githubusercontent.com/libp2p/interface-transport/master/img/badge.png)](https://github.com/libp2p/interface-transport)
`libp2p-circuit` accepts Circuit addresses for both IPFS and non IPFS encapsulated addresses, i.e:
`/p2p-circuit/ip4/127.0.0.1/tcp/4001/ipfs/QmHash`
Both for dialing and listening.
### Implementation rational
This module is not a transport, however it implements `interface-transport` interface in order to allow circuit to be plugged with `libp2p-swarm`. The rational behind it is that, `libp2p-circuit` has a dial and listen flow, which fits nicely with other transports, moreover, it requires the _raw_ connection to be encrypted and muxed just as a regular transport's connection does. All in all, `interface-transport` ended up being the correct level of abstraction for circuit, as well as allowed us to reuse existing integration points in `libp2p-swarm` and `libp2p` without adding any ad-hoc logic. All parts of `interface-transport` are used, including `.getAddr` which returns a list of `/p2p-circuit` addresses that circuit is currently listening.
```
libp2p libp2p-circuit (transport)
+-------------------------------------------------+ +--------------------------+
| +---------------------------------+ | | |
| | | | | +------------------+ |
| | | | circuit-relay listens for the HOP | | | |
| | libp2p-swarm <------------------------------------------------| circuit-relay | |
| | | | message to handle incomming relay | | | |
| | | | requests from other nodes | +------------------+ |
| +---------------------------------+ | | |
| ^ ^ ^ ^ ^ ^ | | +------------------+ |
| | | | | | | | | | +-------------+ | |
| | | | | | | | dialer uses libp2p-swarm to dial | | | | | |
| | | | +----------------------------------------------------------------------> dialer | | |
| | | transports | | to a circuit-relay node using the | | | | | |
| | | | | | | HOP message | | +-------------+ | |
| | | | | | | | | | |
| v v | v v | | | | |
|+------------------|----------------------------+| | | +-------------+ | |
|| | | | | || | | | | | |
||libp2p-tcp |libp2p-ws | .... |libp2p-circuit || listener handles STOP messages from| | | listener | | |
|| | +--------------------------------------------------------------------------> | | |
|| | | |plugs in just || circuit-relay nodes | | +-------------+ | |
|| | | |as any other || | | | |
|| | | |transport || | +------------------+ |
|+-----------------------------------------------+| | |
+-------------------------------------------------+ +--------------------------+
```

View File

@@ -1,126 +0,0 @@
'use strict'
const mafmt = require('mafmt')
const multiaddr = require('multiaddr')
const CircuitDialer = require('./circuit/dialer')
const utilsFactory = require('./circuit/utils')
const debug = require('debug')
const log = debug('libp2p:circuit:transportdialer')
log.err = debug('libp2p:circuit:error:transportdialer')
const createListener = require('./listener')
class Circuit {
static get tag () {
return 'Circuit'
}
/**
* Creates an instance of Dialer.
*
* @param {Swarm} swarm - the swarm
* @param {any} options - config options
*
* @memberOf Dialer
*/
constructor (swarm, options) {
this.options = options || {}
this.swarm = swarm
this.dialer = null
this.utils = utilsFactory(swarm)
this.peerInfo = this.swarm._peerInfo
this.relays = this.filter(this.peerInfo.multiaddrs.toArray())
// if no explicit relays, add a default relay addr
if (this.relays.length === 0) {
this.peerInfo
.multiaddrs
.add(`/p2p-circuit/ipfs/${this.peerInfo.id.toB58String()}`)
}
this.dialer = new CircuitDialer(swarm, options)
this.swarm.on('peer-mux-established', (peerInfo) => {
this.dialer.canHop(peerInfo)
})
this.swarm.on('peer-mux-closed', (peerInfo) => {
this.dialer.relayPeers.delete(peerInfo.id.toB58String())
})
}
/**
* Dial the relays in the Addresses.Swarm config
*
* @param {Array} relays
* @return {void}
*/
_dialSwarmRelays () {
// if we have relay addresses in swarm config, then dial those relays
this.relays.forEach((relay) => {
const relaySegments = relay
.toString()
.split('/p2p-circuit')
.filter(segment => segment.length)
relaySegments.forEach((relaySegment) => {
const ma = this.utils.peerInfoFromMa(multiaddr(relaySegment))
this.dialer._dialRelay(ma)
})
})
}
/**
* Dial a peer over a relay
*
* @param {multiaddr} ma - the multiaddr of the peer to dial
* @param {Object} options - dial options
* @param {Function} cb - a callback called once dialed
* @returns {Connection} - the connection
*
* @memberOf Dialer
*/
dial (ma, options, cb) {
return this.dialer.dial(ma, options, cb)
}
/**
* Create a listener
*
* @param {any} options
* @param {Function} handler
* @return {listener}
*/
createListener (options, handler) {
if (typeof options === 'function') {
handler = options
options = this.options || {}
}
const listener = createListener(this.swarm, options, handler)
listener.on('listen', this._dialSwarmRelays.bind(this))
return listener
}
/**
* Filter check for all multiaddresses
* that this transport can dial on
*
* @param {any} multiaddrs
* @returns {Array<multiaddr>}
*
* @memberOf Dialer
*/
filter (multiaddrs) {
if (!Array.isArray(multiaddrs)) {
multiaddrs = [multiaddrs]
}
return multiaddrs.filter((ma) => {
return mafmt.Circuit.matches(ma)
})
}
}
module.exports = Circuit

View File

@@ -1,275 +0,0 @@
'use strict'
const once = require('once')
const PeerId = require('peer-id')
const waterfall = require('async/waterfall')
const setImmediate = require('async/setImmediate')
const multiaddr = require('multiaddr')
const Connection = require('interface-connection').Connection
const utilsFactory = require('./utils')
const StreamHandler = require('./stream-handler')
const debug = require('debug')
const log = debug('libp2p:circuit:dialer')
log.err = debug('libp2p:circuit:error:dialer')
const multicodec = require('../multicodec')
const proto = require('../protocol')
class Dialer {
/**
* Creates an instance of Dialer.
* @param {Swarm} swarm - the swarm
* @param {any} options - config options
*
* @memberOf Dialer
*/
constructor (swarm, options) {
this.swarm = swarm
this.relayPeers = new Map()
this.relayConns = new Map()
this.options = options
this.utils = utilsFactory(swarm)
}
/**
* Helper that returns a relay connection
*
* @param {*} relay
* @param {*} callback
* @returns {Function} - callback
*/
_dialRelayHelper (relay, callback) {
if (this.relayConns.has(relay.id.toB58String())) {
return callback(null, this.relayConns.get(relay.id.toB58String()))
}
return this._dialRelay(relay, callback)
}
/**
* Dial a peer over a relay
*
* @param {multiaddr} ma - the multiaddr of the peer to dial
* @param {Function} cb - a callback called once dialed
* @returns {Connection} - the connection
*
*/
dial (ma, cb) {
cb = cb || (() => { })
const strMa = ma.toString()
if (!strMa.includes('/p2p-circuit')) {
log.err('invalid circuit address')
return cb(new Error('invalid circuit address'))
}
const addr = strMa.split('p2p-circuit') // extract relay address if any
const relay = addr[0] === '/' ? null : multiaddr(addr[0])
const peer = multiaddr(addr[1] || addr[0])
const dstConn = new Connection()
setImmediate(
this._dialPeer.bind(this),
peer,
relay,
(err, conn) => {
if (err) {
log.err(err)
return cb(err)
}
dstConn.setInnerConn(conn)
cb(null, dstConn)
})
return dstConn
}
/**
* Does the peer support the HOP protocol
*
* @param {PeerInfo} peer
* @param {Function} callback
* @returns {void}
*/
canHop (peer, callback) {
callback = once(callback || (() => { }))
this._dialRelayHelper(peer, (err, conn) => {
if (err) {
return callback(err)
}
const sh = new StreamHandler(conn)
waterfall([
(cb) => sh.write(proto.CircuitRelay.encode({
type: proto.CircuitRelay.Type.CAN_HOP
}), cb),
(cb) => sh.read(cb)
], (err, msg) => {
if (err) {
return callback(err)
}
const response = proto.CircuitRelay.decode(msg)
if (response.code !== proto.CircuitRelay.Status.SUCCESS) {
const err = new Error(`HOP not supported, skipping - ${this.utils.getB58String(peer)}`)
log(err)
return callback(err)
}
log('HOP supported adding as relay - %s', this.utils.getB58String(peer))
this.relayPeers.set(this.utils.getB58String(peer), peer)
sh.close()
callback()
})
})
}
/**
* Dial the destination peer over a relay
*
* @param {multiaddr} dstMa
* @param {Connection|PeerInfo} relay
* @param {Function} cb
* @return {Function|void}
* @private
*/
_dialPeer (dstMa, relay, cb) {
if (typeof relay === 'function') {
cb = relay
relay = null
}
if (!cb) {
cb = () => {}
}
dstMa = multiaddr(dstMa)
// if no relay provided, dial on all available relays until one succeeds
if (!relay) {
const relays = Array.from(this.relayPeers.values())
const next = (nextRelay) => {
if (!nextRelay) {
const err = `no relay peers were found or all relays failed to dial`
log.err(err)
return cb(err)
}
return this._negotiateRelay(
nextRelay,
dstMa,
(err, conn) => {
if (err) {
log.err(err)
return next(relays.shift())
}
cb(null, conn)
})
}
next(relays.shift())
} else {
return this._negotiateRelay(
relay,
dstMa,
(err, conn) => {
if (err) {
log.err('An error has occurred negotiating the relay connection', err)
return cb(err)
}
return cb(null, conn)
})
}
}
/**
* Negotiate the relay connection
*
* @param {Multiaddr|PeerInfo|Connection} relay - the Connection or PeerInfo of the relay
* @param {multiaddr} dstMa - the multiaddr of the peer to relay the connection for
* @param {Function} callback - a callback which gets the negotiated relay connection
* @returns {void}
* @private
*
* @memberOf Dialer
*/
_negotiateRelay (relay, dstMa, callback) {
dstMa = multiaddr(dstMa)
relay = this.utils.peerInfoFromMa(relay)
const srcMas = this.swarm._peerInfo.multiaddrs.toArray()
this._dialRelayHelper(relay, (err, conn) => {
if (err) {
log.err(err)
return callback(err)
}
const sh = new StreamHandler(conn)
waterfall([
(cb) => {
log('negotiating relay for peer %s', dstMa.getPeerId())
let dstPeerId
try {
dstPeerId = PeerId.createFromB58String(dstMa.getPeerId()).id
} catch (err) {
return cb(err)
}
sh.write(
proto.CircuitRelay.encode({
type: proto.CircuitRelay.Type.HOP,
srcPeer: {
id: this.swarm._peerInfo.id.id,
addrs: srcMas.map((addr) => addr.buffer)
},
dstPeer: {
id: dstPeerId,
addrs: [dstMa.buffer]
}
}), cb)
},
(cb) => sh.read(cb)
], (err, msg) => {
if (err) {
return callback(err)
}
const message = proto.CircuitRelay.decode(msg)
if (message.type !== proto.CircuitRelay.Type.STATUS) {
return callback(new Error(`Got invalid message type - ` +
`expected ${proto.CircuitRelay.Type.STATUS} got ${message.type}`))
}
if (message.code !== proto.CircuitRelay.Status.SUCCESS) {
return callback(new Error(`Got ${message.code} error code trying to dial over relay`))
}
callback(null, new Connection(sh.rest()))
})
})
}
/**
* Dial a relay peer by its PeerInfo
*
* @param {PeerInfo} peer - the PeerInfo of the relay peer
* @param {Function} cb - a callback with the connection to the relay peer
* @returns {void}
* @private
*/
_dialRelay (peer, cb) {
cb = once(cb || (() => { }))
this.swarm.dial(
peer,
multicodec.relay,
once((err, conn) => {
if (err) {
log.err(err)
return cb(err)
}
cb(null, conn)
}))
}
}
module.exports = Dialer

View File

@@ -1,283 +0,0 @@
'use strict'
const pull = require('pull-stream/pull')
const debug = require('debug')
const PeerInfo = require('peer-info')
const PeerId = require('peer-id')
const EE = require('events').EventEmitter
const once = require('once')
const utilsFactory = require('./utils')
const StreamHandler = require('./stream-handler')
const proto = require('../protocol').CircuitRelay
const multiaddr = require('multiaddr')
const series = require('async/series')
const waterfall = require('async/waterfall')
const setImmediate = require('async/setImmediate')
const multicodec = require('./../multicodec')
const log = debug('libp2p:circuit:relay')
log.err = debug('libp2p:circuit:error:relay')
class Hop extends EE {
/**
* Construct a Circuit object
*
* This class will handle incoming circuit connections and
* either start a relay or hand the relayed connection to
* the swarm
*
* @param {Swarm} swarm
* @param {Object} options
*/
constructor (swarm, options) {
super()
this.swarm = swarm
this.peerInfo = this.swarm._peerInfo
this.utils = utilsFactory(swarm)
this.config = options || { active: false, enabled: false }
this.active = this.config.active
}
/**
* Handle the relay message
*
* @param {CircuitRelay} message
* @param {StreamHandler} sh
* @returns {*}
*/
handle (message, sh) {
if (!this.config.enabled) {
this.utils.writeResponse(
sh,
proto.Status.HOP_CANT_SPEAK_RELAY)
return sh.close()
}
// check if message is `CAN_HOP`
if (message.type === proto.Type.CAN_HOP) {
this.utils.writeResponse(
sh,
proto.Status.SUCCESS)
return sh.close()
}
// This is a relay request - validate and create a circuit
let srcPeerId = null
let dstPeerId = null
try {
srcPeerId = PeerId.createFromBytes(message.srcPeer.id).toB58String()
dstPeerId = PeerId.createFromBytes(message.dstPeer.id).toB58String()
} catch (err) {
log.err(err)
if (!srcPeerId) {
this.utils.writeResponse(
sh,
proto.Status.HOP_SRC_MULTIADDR_INVALID)
return sh.close()
}
if (!dstPeerId) {
this.utils.writeResponse(
sh,
proto.Status.HOP_DST_MULTIADDR_INVALID)
return sh.close()
}
}
if (srcPeerId === dstPeerId) {
this.utils.writeResponse(
sh,
proto.Status.HOP_CANT_RELAY_TO_SELF)
return sh.close()
}
if (!message.dstPeer.addrs.length) {
// TODO: use encapsulate here
const addr = multiaddr(`/p2p-circuit/ipfs/${dstPeerId}`).buffer
message.dstPeer.addrs.push(addr)
}
log('trying to establish a circuit: %s <-> %s', srcPeerId, dstPeerId)
const noPeer = () => {
// log.err(err)
this.utils.writeResponse(
sh,
proto.Status.HOP_NO_CONN_TO_DST)
return sh.close()
}
const isConnected = (cb) => {
let dstPeer
try {
dstPeer = this.swarm._peerBook.get(dstPeerId)
if (!dstPeer.isConnected() && !this.active) {
const err = new Error(`No Connection to peer ${dstPeerId}`)
noPeer(err)
return cb(err)
}
} catch (err) {
if (!this.active) {
noPeer(err)
return cb(err)
}
}
cb()
}
series([
(cb) => this.utils.validateAddrs(message, sh, proto.Type.HOP, cb),
(cb) => isConnected(cb),
(cb) => this._circuit(sh, message, cb)
], (err) => {
if (err) {
log.err(err)
sh.close()
return setImmediate(() => this.emit('circuit:error', err))
}
setImmediate(() => this.emit('circuit:success'))
})
}
/**
* Connect to STOP
*
* @param {PeerInfo} peer
* @param {StreamHandler} srcSh
* @param {function} callback
* @returns {void}
*/
_connectToStop (peer, srcSh, callback) {
this._dialPeer(peer, (err, dstConn) => {
if (err) {
this.utils.writeResponse(
srcSh,
proto.Status.HOP_CANT_DIAL_DST)
log.err(err)
return callback(err)
}
return this.utils.writeResponse(
srcSh,
proto.Status.SUCCESS,
(err) => {
if (err) {
log.err(err)
return callback(err)
}
return callback(null, dstConn)
})
})
}
/**
* Negotiate STOP
*
* @param {StreamHandler} dstSh
* @param {StreamHandler} srcSh
* @param {CircuitRelay} message
* @param {function} callback
* @returns {void}
*/
_negotiateStop (dstSh, srcSh, message, callback) {
const stopMsg = Object.assign({}, message, {
type: proto.Type.STOP // change the message type
})
dstSh.write(proto.encode(stopMsg),
(err) => {
if (err) {
this.utils.writeResponse(
srcSh,
proto.Status.HOP_CANT_OPEN_DST_STREAM)
log.err(err)
return callback(err)
}
// read response from STOP
dstSh.read((err, msg) => {
if (err) {
log.err(err)
return callback(err)
}
const message = proto.decode(msg)
if (message.code !== proto.Status.SUCCESS) {
return callback(new Error(`Unable to create circuit!`))
}
return callback(null, msg)
})
})
}
/**
* Attempt to make a circuit from A <-> R <-> B where R is this relay
*
* @param {StreamHandler} srcSh - the source stream handler
* @param {CircuitRelay} message - the message with the src and dst entries
* @param {Function} callback - callback to signal success or failure
* @returns {void}
* @private
*/
_circuit (srcSh, message, callback) {
let dstSh = null
waterfall([
(cb) => this._connectToStop(message.dstPeer, srcSh, cb),
(_dstConn, cb) => {
dstSh = new StreamHandler(_dstConn)
this._negotiateStop(dstSh, srcSh, message, cb)
}
], (err) => {
if (err) {
// close/end the source stream if there was an error
if (srcSh) {
srcSh.close()
}
if (dstSh) {
dstSh.close()
}
return callback(err)
}
const src = srcSh.rest()
const dst = dstSh.rest()
const srcIdStr = PeerId.createFromBytes(message.srcPeer.id).toB58String()
const dstIdStr = PeerId.createFromBytes(message.dstPeer.id).toB58String()
// circuit the src and dst streams
pull(
src,
dst,
src
)
log('circuit %s <-> %s established', srcIdStr, dstIdStr)
callback()
})
}
/**
* Dial the dest peer and create a circuit
*
* @param {Multiaddr} dstPeer
* @param {Function} callback
* @returns {void}
* @private
*/
_dialPeer (dstPeer, callback) {
const peerInfo = new PeerInfo(PeerId.createFromBytes(dstPeer.id))
dstPeer.addrs.forEach((a) => peerInfo.multiaddrs.add(a))
this.swarm.dial(peerInfo, multicodec.relay, once((err, conn) => {
if (err) {
log.err(err)
return callback(err)
}
callback(null, conn)
}))
}
}
module.exports = Hop

View File

@@ -1,56 +0,0 @@
'use strict'
const setImmediate = require('async/setImmediate')
const EE = require('events').EventEmitter
const Connection = require('interface-connection').Connection
const utilsFactory = require('./utils')
const PeerInfo = require('peer-info')
const proto = require('../protocol').CircuitRelay
const series = require('async/series')
const debug = require('debug')
const log = debug('libp2p:circuit:stop')
log.err = debug('libp2p:circuit:error:stop')
class Stop extends EE {
constructor (swarm) {
super()
this.swarm = swarm
this.utils = utilsFactory(swarm)
}
/**
* Handle the incoming STOP message
*
* @param {{}} msg - the parsed protobuf message
* @param {StreamHandler} sh - the stream handler wrapped connection
* @param {Function} callback - callback
* @returns {undefined}
*/
handle (msg, sh, callback) {
callback = callback || (() => {})
series([
(cb) => this.utils.validateAddrs(msg, sh, proto.Type.STOP, cb),
(cb) => this.utils.writeResponse(sh, proto.Status.Success, cb)
], (err) => {
if (err) {
// we don't return the error here,
// since multistream select don't expect one
callback()
return log(err)
}
const peerInfo = new PeerInfo(this.utils.peerIdFromId(msg.srcPeer.id))
msg.srcPeer.addrs.forEach((addr) => peerInfo.multiaddrs.add(addr))
const newConn = new Connection(sh.rest())
newConn.setPeerInfo(peerInfo)
setImmediate(() => this.emit('connection', newConn))
callback(newConn)
})
}
}
module.exports = Stop

View File

@@ -1,140 +0,0 @@
'use strict'
const values = require('pull-stream/sources/values')
const collect = require('pull-stream/sinks/collect')
const empty = require('pull-stream/sources/empty')
const pull = require('pull-stream/pull')
const lp = require('pull-length-prefixed')
const handshake = require('pull-handshake')
const debug = require('debug')
const log = debug('libp2p:circuit:stream-handler')
log.err = debug('libp2p:circuit:error:stream-handler')
class StreamHandler {
/**
* Create a stream handler for connection
*
* @param {Connection} conn - connection to read/write
* @param {Function|undefined} cb - handshake callback called on error
* @param {Number} timeout - handshake timeout
* @param {Number} maxLength - max bytes length of message
*/
constructor (conn, cb, timeout, maxLength) {
this.conn = conn
this.stream = null
this.shake = null
this.timeout = cb || 1000 * 60
this.maxLength = maxLength || 4096
if (typeof cb === 'function') {
this.timeout = timeout || 1000 * 60
}
this.stream = handshake({ timeout: this.timeout }, cb)
this.shake = this.stream.handshake
pull(this.stream, conn, this.stream)
}
isValid () {
return this.conn && this.shake && this.stream
}
/**
* Read and decode message
*
* @param {Function} cb
* @returns {void|Function}
*/
read (cb) {
if (!this.isValid()) {
return cb(new Error(`handler is not in a valid state`))
}
lp.decodeFromReader(
this.shake,
{ maxLength: this.maxLength },
(err, msg) => {
if (err) {
log.err(err)
// this.shake.abort(err)
return cb(err)
}
return cb(null, msg)
})
}
/**
* Encode and write array of buffers
*
* @param {Buffer[]} msg
* @param {Function} [cb]
* @returns {Function}
*/
write (msg, cb) {
cb = cb || (() => {})
if (!this.isValid()) {
return cb(new Error(`handler is not in a valid state`))
}
pull(
values([msg]),
lp.encode(),
collect((err, encoded) => {
if (err) {
log.err(err)
this.shake.abort(err)
return cb(err)
}
encoded.forEach((e) => this.shake.write(e))
cb()
})
)
}
/**
* Get the raw Connection
*
* @returns {null|Connection|*}
*/
getRawConn () {
return this.conn
}
/**
* Return the handshake rest stream and invalidate handler
*
* @return {*|{source, sink}}
*/
rest () {
const rest = this.shake.rest()
this.conn = null
this.stream = null
this.shake = null
return rest
}
/**
* Close the stream
*
* @returns {undefined}
*/
close () {
if (!this.isValid()) {
return
}
// close stream
pull(
empty(),
this.rest()
)
}
}
module.exports = StreamHandler

View File

@@ -1,118 +0,0 @@
'use strict'
const multiaddr = require('multiaddr')
const PeerInfo = require('peer-info')
const PeerId = require('peer-id')
const proto = require('../protocol')
const { getPeerInfo } = require('../../get-peer-info')
module.exports = function (swarm) {
/**
* Get b58 string from multiaddr or peerinfo
*
* @param {Multiaddr|PeerInfo} peer
* @return {*}
*/
function getB58String (peer) {
let b58Id = null
if (multiaddr.isMultiaddr(peer)) {
const relayMa = multiaddr(peer)
b58Id = relayMa.getPeerId()
} else if (PeerInfo.isPeerInfo(peer)) {
b58Id = peer.id.toB58String()
}
return b58Id
}
/**
* Helper to make a peer info from a multiaddrs
*
* @param {Multiaddr|PeerInfo|PeerId} peer
* @return {PeerInfo}
* @private
*/
function peerInfoFromMa (peer) {
return getPeerInfo(peer, swarm._peerBook)
}
/**
* Checks if peer has an existing connection
*
* @param {String} peerId
* @param {Swarm} swarm
* @return {Boolean}
*/
function isPeerConnected (peerId) {
return swarm.muxedConns[peerId] || swarm.conns[peerId]
}
/**
* Write a response
*
* @param {StreamHandler} streamHandler
* @param {CircuitRelay.Status} status
* @param {Function} cb
* @returns {*}
*/
function writeResponse (streamHandler, status, cb) {
cb = cb || (() => {})
streamHandler.write(proto.CircuitRelay.encode({
type: proto.CircuitRelay.Type.STATUS,
code: status
}))
return cb()
}
/**
* Validate incomming HOP/STOP message
*
* @param {CircuitRelay} msg
* @param {StreamHandler} streamHandler
* @param {CircuitRelay.Type} type
* @returns {*}
* @param {Function} cb
*/
function validateAddrs (msg, streamHandler, type, cb) {
try {
msg.dstPeer.addrs.forEach((addr) => {
return multiaddr(addr)
})
} catch (err) {
writeResponse(streamHandler, type === proto.CircuitRelay.Type.HOP
? proto.CircuitRelay.Status.HOP_DST_MULTIADDR_INVALID
: proto.CircuitRelay.Status.STOP_DST_MULTIADDR_INVALID)
return cb(err)
}
try {
msg.srcPeer.addrs.forEach((addr) => {
return multiaddr(addr)
})
} catch (err) {
writeResponse(streamHandler, type === proto.CircuitRelay.Type.HOP
? proto.CircuitRelay.Status.HOP_SRC_MULTIADDR_INVALID
: proto.CircuitRelay.Status.STOP_SRC_MULTIADDR_INVALID)
return cb(err)
}
return cb(null)
}
function peerIdFromId (id) {
if (typeof id === 'string') {
return PeerId.createFromB58String(id)
}
return PeerId.createFromBytes(id)
}
return {
getB58String,
peerInfoFromMa,
isPeerConnected,
validateAddrs,
writeResponse,
peerIdFromId
}
}

View File

@@ -1,3 +0,0 @@
'use strict'
module.exports = require('./circuit')

View File

@@ -1,149 +0,0 @@
'use strict'
const setImmediate = require('async/setImmediate')
const multicodec = require('./multicodec')
const EE = require('events').EventEmitter
const multiaddr = require('multiaddr')
const mafmt = require('mafmt')
const Stop = require('./circuit/stop')
const Hop = require('./circuit/hop')
const proto = require('./protocol')
const utilsFactory = require('./circuit/utils')
const StreamHandler = require('./circuit/stream-handler')
const debug = require('debug')
const log = debug('libp2p:circuit:listener')
log.err = debug('libp2p:circuit:error:listener')
module.exports = (swarm, options, connHandler) => {
const listener = new EE()
const utils = utilsFactory(swarm)
listener.stopHandler = new Stop(swarm)
listener.stopHandler.on('connection', (conn) => listener.emit('connection', conn))
listener.hopHandler = new Hop(swarm, options.hop)
/**
* Add swarm handler and listen for incoming connections
*
* @param {Multiaddr} ma
* @param {Function} callback
* @return {void}
*/
listener.listen = (ma, callback) => {
callback = callback || (() => {})
swarm.handle(multicodec.relay, (_, conn) => {
const sh = new StreamHandler(conn)
sh.read((err, msg) => {
if (err) {
log.err(err)
return
}
let request = null
try {
request = proto.CircuitRelay.decode(msg)
} catch (err) {
return utils.writeResponse(
sh,
proto.CircuitRelay.Status.MALFORMED_MESSAGE)
}
switch (request.type) {
case proto.CircuitRelay.Type.CAN_HOP:
case proto.CircuitRelay.Type.HOP: {
return listener.hopHandler.handle(request, sh)
}
case proto.CircuitRelay.Type.STOP: {
return listener.stopHandler.handle(request, sh, connHandler)
}
default: {
utils.writeResponse(
sh,
proto.CircuitRelay.Status.INVALID_MSG_TYPE)
return sh.close()
}
}
})
})
setImmediate(() => listener.emit('listen'))
callback()
}
/**
* Remove swarm listener
*
* @param {Function} cb
* @return {void}
*/
listener.close = (cb) => {
swarm.unhandle(multicodec.relay)
setImmediate(() => listener.emit('close'))
cb()
}
/**
* Get fixed up multiaddrs
*
* NOTE: This method will grab the peers multiaddrs and expand them such that:
*
* a) If it's an existing /p2p-circuit address for a specific relay i.e.
* `/ip4/0.0.0.0/tcp/0/ipfs/QmRelay/p2p-circuit` this method will expand the
* address to `/ip4/0.0.0.0/tcp/0/ipfs/QmRelay/p2p-circuit/ipfs/QmPeer` where
* `QmPeer` is this peers id
* b) If it's not a /p2p-circuit address, it will encapsulate the address as a /p2p-circuit
* addr, such when dialing over a relay with this address, it will create the circuit using
* the encapsulated transport address. This is useful when for example, a peer should only
* be dialed over TCP rather than any other transport
*
* @param {Function} callback
* @return {void}
*/
listener.getAddrs = (callback) => {
let addrs = swarm._peerInfo.multiaddrs.toArray()
// get all the explicit relay addrs excluding self
const p2pAddrs = addrs.filter((addr) => {
return mafmt.Circuit.matches(addr) &&
!addr.toString().includes(swarm._peerInfo.id.toB58String())
})
// use the explicit relays instead of any relay
if (p2pAddrs.length) {
addrs = p2pAddrs
}
const listenAddrs = []
addrs.forEach((addr) => {
const peerMa = `/p2p-circuit/ipfs/${swarm._peerInfo.id.toB58String()}`
if (addr.toString() === peerMa) {
listenAddrs.push(multiaddr(peerMa))
return
}
if (!mafmt.Circuit.matches(addr)) {
if (addr.getPeerId()) {
// by default we're reachable over any relay
listenAddrs.push(multiaddr(`/p2p-circuit`).encapsulate(addr))
} else {
const ma = `${addr}/ipfs/${swarm._peerInfo.id.toB58String()}`
listenAddrs.push(multiaddr(`/p2p-circuit`).encapsulate(ma))
}
} else {
listenAddrs.push(addr.encapsulate(`/ipfs/${swarm._peerInfo.id.toB58String()}`))
}
})
callback(null, listenAddrs)
}
return listener
}

View File

@@ -1,5 +0,0 @@
'use strict'
module.exports = {
relay: '/libp2p/circuit/relay/0.1.0'
}

View File

@@ -1,44 +0,0 @@
'use strict'
const protobuf = require('protons')
module.exports = protobuf(`
message CircuitRelay {
enum Status {
SUCCESS = 100;
HOP_SRC_ADDR_TOO_LONG = 220;
HOP_DST_ADDR_TOO_LONG = 221;
HOP_SRC_MULTIADDR_INVALID = 250;
HOP_DST_MULTIADDR_INVALID = 251;
HOP_NO_CONN_TO_DST = 260;
HOP_CANT_DIAL_DST = 261;
HOP_CANT_OPEN_DST_STREAM = 262;
HOP_CANT_SPEAK_RELAY = 270;
HOP_CANT_RELAY_TO_SELF = 280;
STOP_SRC_ADDR_TOO_LONG = 320;
STOP_DST_ADDR_TOO_LONG = 321;
STOP_SRC_MULTIADDR_INVALID = 350;
STOP_DST_MULTIADDR_INVALID = 351;
STOP_RELAY_REFUSED = 390;
MALFORMED_MESSAGE = 400;
}
enum Type { // RPC identifier, either HOP, STOP or STATUS
HOP = 1;
STOP = 2;
STATUS = 3;
CAN_HOP = 4;
}
message Peer {
required bytes id = 1; // peer id
repeated bytes addrs = 2; // peer's known addresses
}
optional Type type = 1; // Type of the message
optional Peer srcPeer = 2; // srcPeer and dstPeer are used when Type is HOP or STATUS
optional Peer dstPeer = 3;
optional Status code = 4; // Status code, used when Type is STATUS
}
`)

View File

@@ -1,103 +1,52 @@
'use strict'
const mergeOptions = require('merge-options')
const { struct, superstruct } = require('superstruct')
const { optional, list } = struct
const Joi = require('joi')
const DefaultConfig = {
connectionManager: {
minPeers: 25
},
config: {
dht: {
enabled: false,
kBucketSize: 20,
randomWalk: {
enabled: false, // disabled waiting for https://github.com/libp2p/js-libp2p-kad-dht/issues/86
queriesPerPeriod: 1,
interval: 300e3,
timeout: 10e3
}
},
peerDiscovery: {
autoDial: true
},
pubsub: {
enabled: true,
emitSelf: true,
signMessages: true,
strictSigning: true
},
relay: {
enabled: true,
hop: {
enabled: false,
active: false
}
}
}
}
const ModuleSchema = Joi.alternatives().try(Joi.func(), Joi.object())
// Define custom types
const s = superstruct({
types: {
transport: value => {
if (value.length === 0) return 'ERROR_EMPTY'
value.forEach(i => {
if (!i.dial) return 'ERR_NOT_A_TRANSPORT'
const OptionsSchema = Joi.object({
// TODO: create proper validators for the generics
connectionManager: Joi.object(),
peerInfo: Joi.object().required(),
peerBook: Joi.object(),
modules: Joi.object().keys({
connEncryption: Joi.array().items(ModuleSchema).allow(null),
connProtector: Joi.object().keys({
protect: Joi.func().required()
}).unknown(),
contentRouting: Joi.array().items(Joi.object()).allow(null),
dht: ModuleSchema.allow(null),
peerDiscovery: Joi.array().items(ModuleSchema).allow(null),
peerRouting: Joi.array().items(Joi.object()).allow(null),
streamMuxer: Joi.array().items(ModuleSchema).allow(null),
transport: Joi.array().items(ModuleSchema).min(1).required()
}).required(),
config: Joi.object().keys({
peerDiscovery: Joi.object().allow(null),
relay: Joi.object().keys({
enabled: Joi.boolean().default(true),
hop: Joi.object().keys({
enabled: Joi.boolean().default(false),
active: Joi.boolean().default(false)
})
return true
},
protector: value => {
if (!value.protect) return 'ERR_NOT_A_PROTECTOR'
return true
}
}
}).default(),
dht: Joi.object().keys({
kBucketSize: Joi.number().allow(null),
enabledDiscovery: Joi.boolean().default(true)
}),
EXPERIMENTAL: Joi.object().keys({
dht: Joi.boolean().default(false),
pubsub: Joi.boolean().default(false)
}).default()
}).default()
})
const modulesSchema = s({
connEncryption: optional(list([s('object|function')])),
// this is hacky to simulate optional because interface doesnt work correctly with it
// change to optional when fixed upstream
connProtector: s('undefined|protector'),
contentRouting: optional(list(['object'])),
dht: optional(s('null|function|object')),
pubsub: optional(s('null|function|object')),
peerDiscovery: optional(list([s('object|function')])),
peerRouting: optional(list(['object'])),
streamMuxer: optional(list([s('object|function')])),
transport: 'transport'
})
module.exports.validate = (options) => {
options = Joi.attempt(options, OptionsSchema)
const configSchema = s({
peerDiscovery: 'object?',
relay: 'object?',
dht: 'object?',
pubsub: 'object?'
})
const optionsSchema = s({
switch: 'object?',
connectionManager: 'object?',
datastore: 'object?',
peerInfo: 'object',
peerBook: 'object?',
modules: modulesSchema,
config: configSchema
})
module.exports.validate = (opts) => {
opts = mergeOptions(DefaultConfig, opts)
const [error, options] = optionsSchema.validate(opts)
// Improve errors throwed, reduce stack by throwing here and add reason to the message
if (error) {
throw new Error(`${error.message}${error.reason ? ' - ' + error.reason : ''}`)
} else {
// Throw when dht is enabled but no dht module provided
if (options.config.dht.enabled) {
s('function|object')(options.modules.dht)
}
// Ensure dht is correct
if (options.config.EXPERIMENTAL.dht) {
Joi.assert(options.modules.dht, ModuleSchema.required())
}
return options

View File

@@ -1,99 +0,0 @@
# libp2p-connection-manager
> JavaScript connection manager for libp2p
**Note**: git history prior to merging into js-libp2p can be found in the original repository, https://github.com/libp2p/js-libp2p-connection-manager.
## Table of Contents
- [Install](#install)
- [npm](#npm)
- [Use in Node.js, a browser with browserify, webpack or any other bundler](##use-in-nodejs-or-in-the-browser-with-browserify-webpack-or-any-other-bundler)
- [Usage](#usage)
- [API](#api)
- [Contribute](#contribute)
- [License](#license)
## API
A connection manager manages the peers you're connected to. The application provides one or more limits that will trigger the disconnection of peers. These limits can be any of the following:
* number of connected peers
* maximum bandwidth (sent / received or both)
* maximum event loop delay
The connection manager will disconnect peers (starting from the less important peers) until all the measures are withing the stated limits.
A connection manager first disconnects the peers with the least value. By default all peers have the same importance (1), but the application can define otherwise. Once a peer disconnects the connection manager discards the peer importance. (If necessary, the application should redefine the peer state if the peer is again connected).
### Create a ConnectionManager
```js
const libp2p = // …
const options = {}
const connManager = new ConnManager(libp2p, options)
```
Options is an optional object with the following key-value pairs:
* **`maxPeers`**: number identifying the maximum number of peers the current peer is willing to be connected to before is starts disconnecting. Defaults to `Infinity`
* **`maxPeersPerProtocol`**: Object with key-value pairs, where a key is the protocol tag (case-insensitive) and the value is a number, representing the maximum number of peers allowing to connect for each protocol. Defaults to `{}`.
* **`minPeers`**: number identifying the number of peers below which this node will not activate preemptive disconnections. Defaults to `0`.
* **`maxData`**: sets the maximum data — in bytes per second - (sent and received) this node is willing to endure before it starts disconnecting peers. Defaults to `Infinity`.
* **`maxSentData`**: sets the maximum sent data — in bytes per second - this node is willing to endure before it starts disconnecting peers. Defaults to `Infinity`.
* **`maxReceivedData`**: sets the maximum received data — in bytes per second - this node is willing to endure before it starts disconnecting peers. Defaults to `Infinity`.
* **`maxEventLoopDelay`**: sets the maximum event loop delay (measured in miliseconds) this node is willing to endure before it starts disconnecting peers. Defaults to `Infinity`.
* **`pollInterval`**: sets the poll interval (in miliseconds) for assessing the current state and determining if this peer needs to force a disconnect. Defaults to `2000` (2 seconds).
* **`movingAverageInterval`**: the interval used to calculate moving averages (in miliseconds). Defaults to `60000` (1 minute).
* **`defaultPeerValue`**: number between 0 and 1. Defaults to 1.
### `connManager.start()`
Starts the connection manager.
### `connManager.stop()`
Stops the connection manager.
### `connManager.setPeerValue(peerId, value)`
Sets the peer value for a given peer id. This is used to sort peers (in reverse order of value) to determine which to disconnect from first.
Arguments:
* peerId: B58-encoded string or [`peer-id`](https://github.com/libp2p/js-peer-id) instance.
* value: a number between 0 and 1, which represents a scale of how valuable this given peer id is to the application.
### `connManager.peers()`
Returns the peers this connection manager is connected to.
Returns an array of [PeerInfo](https://github.com/libp2p/js-peer-info).
### `connManager.emit('limit:exceeded', limitName, measured)`
Emitted when a limit is exceeded. Limit names can be:
* `maxPeers`
* `minPeers`
* `maxData`
* `maxSentData`
* `maxReceivedData`
* `maxEventLoopDelay`
* a protocol tag string (lower-cased)
### `connManager.emit('disconnect:preemptive', peerId)`
Emitted when a peer is about to be preemptively disconnected.
### `connManager.emit('disconnected', peerId)`
Emitted when a peer is disconnected (preemptively or note). If this peer reconnects, you will need to reset it's value, since the connection manager does not remember it.
### `connManager.emit('connected', peerId: String)`
Emitted when a peer connects. This is a good event to set the peer value, so you can get some control over who gets banned once a maximum number of peers is reached.

View File

@@ -1,218 +0,0 @@
'use strict'
const EventEmitter = require('events')
const LatencyMonitor = require('latency-monitor').default
const debug = require('debug')('libp2p:connection-manager')
const defaultOptions = {
maxPeers: Infinity,
minPeers: 0,
maxData: Infinity,
maxSentData: Infinity,
maxReceivedData: Infinity,
maxEventLoopDelay: Infinity,
pollInterval: 2000,
movingAverageInterval: 60000,
defaultPeerValue: 1
}
class ConnectionManager extends EventEmitter {
constructor (libp2p, options) {
super()
this._libp2p = libp2p
this._options = Object.assign({}, defaultOptions, options)
this._options.maxPeersPerProtocol = fixMaxPeersPerProtocol(this._options.maxPeersPerProtocol)
debug('options: %j', this._options)
this._stats = libp2p.stats
if (options && !this._stats) {
throw new Error('No libp2p.stats')
}
this._peerValues = new Map()
this._peers = new Map()
this._peerProtocols = new Map()
this._peerCountPerProtocol = new Map()
this._onStatsUpdate = this._onStatsUpdate.bind(this)
this._onPeerConnect = this._onPeerConnect.bind(this)
this._onPeerDisconnect = this._onPeerDisconnect.bind(this)
if (this._libp2p.isStarted()) {
this._onceStarted()
} else {
this._libp2p.once('start', this._onceStarted.bind(this))
}
}
start () {
this._stats.on('update', this._onStatsUpdate)
this._libp2p.on('connection:start', this._onPeerConnect)
this._libp2p.on('connection:end', this._onPeerDisconnect)
// latency monitor
this._latencyMonitor = new LatencyMonitor({
dataEmitIntervalMs: this._options.pollInterval
})
this._onLatencyMeasure = this._onLatencyMeasure.bind(this)
this._latencyMonitor.on('data', this._onLatencyMeasure)
}
stop () {
this._stats.removeListener('update', this._onStatsUpdate)
this._libp2p.removeListener('connection:start', this._onPeerConnect)
this._libp2p.removeListener('connection:end', this._onPeerDisconnect)
this._latencyMonitor.removeListener('data', this._onLatencyMeasure)
}
setPeerValue (peerId, value) {
if (value < 0 || value > 1) {
throw new Error('value should be a number between 0 and 1')
}
if (peerId.toB58String) {
peerId = peerId.toB58String()
}
this._peerValues.set(peerId, value)
}
_onceStarted () {
this._peerId = this._libp2p.peerInfo.id.toB58String()
}
_onStatsUpdate () {
const movingAvgs = this._stats.global.movingAverages
const received = movingAvgs.dataReceived[this._options.movingAverageInterval].movingAverage()
this._checkLimit('maxReceivedData', received)
const sent = movingAvgs.dataSent[this._options.movingAverageInterval].movingAverage()
this._checkLimit('maxSentData', sent)
const total = received + sent
this._checkLimit('maxData', total)
debug('stats update', total)
}
_onPeerConnect (peerInfo) {
const peerId = peerInfo.id.toB58String()
debug('%s: connected to %s', this._peerId, peerId)
this._peerValues.set(peerId, this._options.defaultPeerValue)
this._peers.set(peerId, peerInfo)
this.emit('connected', peerId)
this._checkLimit('maxPeers', this._peers.size)
protocolsFromPeerInfo(peerInfo).forEach((protocolTag) => {
const protocol = this._peerCountPerProtocol[protocolTag]
if (!protocol) {
this._peerCountPerProtocol[protocolTag] = 0
}
this._peerCountPerProtocol[protocolTag]++
let peerProtocols = this._peerProtocols[peerId]
if (!peerProtocols) {
peerProtocols = this._peerProtocols[peerId] = new Set()
}
peerProtocols.add(protocolTag)
this._checkProtocolMaxPeersLimit(protocolTag, this._peerCountPerProtocol[protocolTag])
})
}
_onPeerDisconnect (peerInfo) {
const peerId = peerInfo.id.toB58String()
debug('%s: disconnected from %s', this._peerId, peerId)
this._peerValues.delete(peerId)
this._peers.delete(peerId)
const peerProtocols = this._peerProtocols[peerId]
if (peerProtocols) {
Array.from(peerProtocols).forEach((protocolTag) => {
const peerCountForProtocol = this._peerCountPerProtocol[protocolTag]
if (peerCountForProtocol) {
this._peerCountPerProtocol[protocolTag]--
}
})
}
this.emit('disconnected', peerId)
}
_onLatencyMeasure (summary) {
this._checkLimit('maxEventLoopDelay', summary.avgMs)
}
_checkLimit (name, value) {
const limit = this._options[name]
debug('checking limit of %s. current value: %d of %d', name, value, limit)
if (value > limit) {
debug('%s: limit exceeded: %s, %d', this._peerId, name, value)
this.emit('limit:exceeded', name, value)
this._maybeDisconnectOne()
}
}
_checkProtocolMaxPeersLimit (protocolTag, value) {
debug('checking protocol limit. current value of %s is %d', protocolTag, value)
const limit = this._options.maxPeersPerProtocol[protocolTag]
if (value > limit) {
debug('%s: protocol max peers limit exceeded: %s, %d', this._peerId, protocolTag, value)
this.emit('limit:exceeded', protocolTag, value)
this._maybeDisconnectOne()
}
}
_maybeDisconnectOne () {
if (this._options.minPeers < this._peerValues.size) {
const peerValues = Array.from(this._peerValues).sort(byPeerValue)
debug('%s: sorted peer values: %j', this._peerId, peerValues)
const disconnectPeer = peerValues[0]
if (disconnectPeer) {
const peerId = disconnectPeer[0]
debug('%s: lowest value peer is %s', this._peerId, peerId)
debug('%s: forcing disconnection from %j', this._peerId, peerId)
this._disconnectPeer(peerId)
}
}
}
_disconnectPeer (peerId) {
debug('preemptively disconnecting peer', peerId)
this.emit('%s: disconnect:preemptive', this._peerId, peerId)
const peer = this._peers.get(peerId)
this._libp2p.hangUp(peer, (err) => {
if (err) {
this.emit('error', err)
}
})
}
}
module.exports = ConnectionManager
function byPeerValue (peerValueEntryA, peerValueEntryB) {
return peerValueEntryA[1] - peerValueEntryB[1]
}
function fixMaxPeersPerProtocol (maxPeersPerProtocol) {
if (!maxPeersPerProtocol) {
maxPeersPerProtocol = {}
}
Object.keys(maxPeersPerProtocol).forEach((transportTag) => {
const max = maxPeersPerProtocol[transportTag]
delete maxPeersPerProtocol[transportTag]
maxPeersPerProtocol[transportTag.toLowerCase()] = max
})
return maxPeersPerProtocol
}
function protocolsFromPeerInfo (peerInfo) {
const protocolTags = new Set()
peerInfo.multiaddrs.forEach((multiaddr) => {
multiaddr.protos().map(protocolToProtocolTag).forEach((protocolTag) => {
protocolTags.add(protocolTag)
})
})
return Array.from(protocolTags)
}
function protocolToProtocolTag (protocol) {
return protocol.name.toLowerCase()
}

View File

@@ -3,7 +3,6 @@
const tryEach = require('async/tryEach')
const parallel = require('async/parallel')
const errCode = require('err-code')
const promisify = require('promisify-es6')
module.exports = (node) => {
const routers = node._modules.contentRouting || []
@@ -21,11 +20,14 @@ module.exports = (node) => {
* @param {CID} key The CID key of the content to find
* @param {object} options
* @param {number} options.maxTimeout How long the query should run
* @param {number} options.maxNumProviders - maximum number of providers to find
* @param {function(Error, Result<Array>)} callback
* @returns {void}
*/
findProviders: promisify((key, options, callback) => {
findProviders: (key, options, callback) => {
if (!routers.length) {
return callback(errCode(new Error('No content routers available'), 'NO_ROUTERS_AVAILABLE'))
}
if (typeof options === 'function') {
callback = options
options = {}
@@ -35,10 +37,6 @@ module.exports = (node) => {
}
}
if (!routers.length) {
return callback(errCode(new Error('No content routers available'), 'NO_ROUTERS_AVAILABLE'))
}
const tasks = routers.map((router) => {
return (cb) => router.findProviders(key, options, (err, results) => {
if (err) {
@@ -61,7 +59,7 @@ module.exports = (node) => {
results = results || []
callback(null, results)
})
}),
},
/**
* Iterates over all content routers in parallel to notify it is
@@ -71,7 +69,7 @@ module.exports = (node) => {
* @param {function(Error)} callback
* @returns {void}
*/
provide: promisify((key, callback) => {
provide: (key, callback) => {
if (!routers.length) {
return callback(errCode(new Error('No content routers available'), 'NO_ROUTERS_AVAILABLE'))
}
@@ -79,6 +77,6 @@ module.exports = (node) => {
parallel(routers.map((router) => {
return (cb) => router.provide(key, cb)
}), callback)
})
}
}
}

View File

@@ -1,43 +1,37 @@
'use strict'
const nextTick = require('async/nextTick')
const errCode = require('err-code')
const promisify = require('promisify-es6')
const { messages, codes } = require('./errors')
module.exports = (node) => {
return {
put: promisify((key, value, callback) => {
put: (key, value, callback) => {
if (!node._dht) {
return nextTick(callback, errCode(new Error(messages.DHT_DISABLED), codes.DHT_DISABLED))
return callback(new Error('DHT is not available'))
}
node._dht.put(key, value, callback)
}),
get: promisify((key, options, callback) => {
},
get: (key, options, callback) => {
if (typeof options === 'function') {
callback = options
options = {}
}
if (!node._dht) {
return nextTick(callback, errCode(new Error(messages.DHT_DISABLED), codes.DHT_DISABLED))
return callback(new Error('DHT is not available'))
}
node._dht.get(key, options, callback)
}),
getMany: promisify((key, nVals, options, callback) => {
},
getMany: (key, nVals, options, callback) => {
if (typeof options === 'function') {
callback = options
options = {}
}
if (!node._dht) {
return nextTick(callback, errCode(new Error(messages.DHT_DISABLED), codes.DHT_DISABLED))
return callback(new Error('DHT is not available'))
}
node._dht.getMany(key, nVals, options, callback)
})
}
}
}

3
src/error-messages.js Normal file
View File

@@ -0,0 +1,3 @@
'use strict'
exports.NOT_STARTED_YET = 'The libp2p node is not started yet'

View File

@@ -1,13 +0,0 @@
'use strict'
exports.messages = {
NOT_STARTED_YET: 'The libp2p node is not started yet',
DHT_DISABLED: 'DHT is not available'
}
exports.codes = {
DHT_DISABLED: 'ERR_DHT_DISABLED',
PUBSUB_NOT_STARTED: 'ERR_PUBSUB_NOT_STARTED',
ERR_NODE_NOT_STARTED: 'ERR_NODE_NOT_STARTED',
ERR_DISCOVERED_SELF: 'ERR_DISCOVERED_SELF'
}

View File

@@ -3,74 +3,54 @@
const PeerId = require('peer-id')
const PeerInfo = require('peer-info')
const multiaddr = require('multiaddr')
const errCode = require('err-code')
const setImmediate = require('async/setImmediate')
/**
* Converts the given `peer` to a `PeerInfo` instance.
* The `PeerBook` will be checked for the resulting peer, and
* the peer will be updated in the `PeerBook`.
*
* @param {PeerInfo|PeerId|Multiaddr|string} peer
* @param {PeerBook} peerBook
* @returns {PeerInfo}
*/
function getPeerInfo (peer, peerBook) {
if (typeof peer === 'string') {
peer = multiaddr(peer)
}
module.exports = (node) => {
/*
* Helper method to check the data type of peer and convert it to PeerInfo
*/
return function (peer, callback) {
let p
// PeerInfo
if (PeerInfo.isPeerInfo(peer)) {
p = peer
// Multiaddr instance or Multiaddr String
} else if (multiaddr.isMultiaddr(peer) || typeof peer === 'string') {
if (typeof peer === 'string') {
try {
peer = multiaddr(peer)
} catch (err) {
return setImmediate(() => callback(err))
}
}
let addr
if (multiaddr.isMultiaddr(peer)) {
addr = peer
try {
peer = PeerId.createFromB58String(peer.getPeerId())
} catch (err) {
throw errCode(
new Error(`${peer} is not a valid peer type`),
'ERR_INVALID_MULTIADDR'
)
const peerIdB58Str = peer.getPeerId()
if (!peerIdB58Str) {
return setImmediate(() => {
callback(new Error('peer multiaddr instance or string must include peerId'))
})
}
try {
p = node.peerBook.get(peerIdB58Str)
} catch (err) {
p = new PeerInfo(PeerId.createFromB58String(peerIdB58Str))
}
p.multiaddrs.add(peer)
// PeerId
} else if (PeerId.isPeerId(peer)) {
const peerIdB58Str = peer.toB58String()
try {
p = node.peerBook.get(peerIdB58Str)
} catch (err) {
return node.peerRouting.findPeer(peer, callback)
}
} else {
return setImmediate(() => callback(new Error('peer type not recognized')))
}
setImmediate(() => callback(null, p))
}
if (PeerId.isPeerId(peer)) {
peer = new PeerInfo(peer)
}
addr && peer.multiaddrs.add(addr)
return peerBook ? peerBook.put(peer) : peer
}
/**
* If `getPeerInfo` does not return a peer with multiaddrs,
* the `libp2p` PeerRouter will be used to attempt to find the peer.
*
* @async
* @param {PeerInfo|PeerId|Multiaddr|string} peer
* @param {Libp2p} libp2p
* @returns {Promise<PeerInfo>}
*/
function getPeerInfoRemote (peer, libp2p) {
let peerInfo
try {
peerInfo = getPeerInfo(peer, libp2p.peerBook)
} catch (err) {
return Promise.reject(errCode(
new Error(`${peer} is not a valid peer type`),
'ERR_INVALID_PEER_TYPE'
))
}
// If we don't have an address for the peer, attempt to find it
if (peerInfo.multiaddrs.size < 1) {
return libp2p.peerRouting.findPeer(peerInfo.id)
}
return Promise.resolve(peerInfo)
}
module.exports = {
getPeerInfoRemote,
getPeerInfo
}

View File

@@ -1,37 +0,0 @@
# js-libp2p-identify
> libp2p Identify Protocol
**Note**: git history prior to merging into js-libp2p can be found in the original repository, https://github.com/libp2p/js-libp2p-identify.
## Description
Identify is a STUN protocol, used by libp2p-swarm in order to broadcast and learn about the `ip:port` pairs a specific peer is available through and to know when a new stream muxer is established, so a conn can be reused.
## How does it work
Best way to understand the current design is through this issue: https://github.com/libp2p/js-libp2p-swarm/issues/78
### This module uses `pull-streams`
We expose a streaming interface based on `pull-streams`, rather then on the Node.js core streams implementation (aka Node.js streams). `pull-streams` offers us a better mechanism for error handling and flow control guarantees. If you would like to know more about why we did this, see the discussion at this [issue](https://github.com/ipfs/js-ipfs/issues/362).
You can learn more about pull-streams at:
- [The history of Node.js streams, nodebp April 2014](https://www.youtube.com/watch?v=g5ewQEuXjsQ)
- [The history of streams, 2016](http://dominictarr.com/post/145135293917/history-of-streams)
- [pull-streams, the simple streaming primitive](http://dominictarr.com/post/149248845122/pull-streams-pull-streams-are-a-very-simple)
- [pull-streams documentation](https://pull-stream.github.io/)
#### Converting `pull-streams` to Node.js Streams
If you are a Node.js streams user, you can convert a pull-stream to a Node.js stream using the module [`pull-stream-to-stream`](https://github.com/pull-stream/pull-stream-to-stream), giving you an instance of a Node.js stream that is linked to the pull-stream. For example:
```js
const pullToStream = require('pull-stream-to-stream')
const nodeStreamInstance = pullToStream(pullStreamInstance)
// nodeStreamInstance is an instance of a Node.js Stream
```
To learn more about this utility, visit https://pull-stream.github.io/#pull-stream-to-stream.

View File

@@ -1,87 +0,0 @@
'use strict'
const PeerInfo = require('peer-info')
const PeerId = require('peer-id')
const multiaddr = require('multiaddr')
const pull = require('pull-stream/pull')
const take = require('pull-stream/throughs/take')
const collect = require('pull-stream/sinks/collect')
const lp = require('pull-length-prefixed')
const msg = require('./message')
module.exports = (conn, expectedPeerInfo, callback) => {
if (typeof expectedPeerInfo === 'function') {
callback = expectedPeerInfo
expectedPeerInfo = null
// eslint-disable-next-line no-console
console.warn('WARNING: no expected peer info was given, identify will not be able to verify peer integrity')
}
pull(
conn,
lp.decode(),
take(1),
collect((err, data) => {
if (err) {
return callback(err)
}
// connection got closed graciously
if (data.length === 0) {
return callback(new Error('conn was closed, did not receive data'))
}
const input = msg.decode(data[0])
PeerId.createFromPubKey(input.publicKey, (err, id) => {
if (err) {
return callback(err)
}
const peerInfo = new PeerInfo(id)
if (expectedPeerInfo && expectedPeerInfo.id.toB58String() !== id.toB58String()) {
return callback(new Error('invalid peer'))
}
try {
input.listenAddrs
.map(multiaddr)
.forEach((ma) => peerInfo.multiaddrs.add(ma))
} catch (err) {
return callback(err)
}
let observedAddr
try {
observedAddr = getObservedAddrs(input)
} catch (err) {
return callback(err)
}
// Copy the protocols
peerInfo.protocols = new Set(input.protocols)
callback(null, peerInfo, observedAddr)
})
})
)
}
function getObservedAddrs (input) {
if (!hasObservedAddr(input)) {
return []
}
let addrs = input.observedAddr
if (!Array.isArray(addrs)) {
addrs = [addrs]
}
return addrs.map((oa) => multiaddr(oa))
}
function hasObservedAddr (input) {
return input.observedAddr && input.observedAddr.length > 0
}

View File

@@ -1,7 +0,0 @@
'use strict'
exports = module.exports
exports.multicodec = '/ipfs/id/1.0.0'
exports.listener = require('./listener')
exports.dialer = require('./dialer')
exports.message = require('./message')

View File

@@ -1,35 +0,0 @@
'use strict'
const pull = require('pull-stream/pull')
const values = require('pull-stream/sources/values')
const lp = require('pull-length-prefixed')
const msg = require('./message')
module.exports = (conn, pInfoSelf) => {
// send what I see from the other + my Info
conn.getObservedAddrs((err, observedAddrs) => {
if (err) { return }
observedAddrs = observedAddrs[0]
let publicKey = Buffer.alloc(0)
if (pInfoSelf.id.pubKey) {
publicKey = pInfoSelf.id.pubKey.bytes
}
const msgSend = msg.encode({
protocolVersion: 'ipfs/0.1.0',
agentVersion: 'na',
publicKey: publicKey,
listenAddrs: pInfoSelf.multiaddrs.toArray().map((ma) => ma.buffer),
observedAddr: observedAddrs ? observedAddrs.buffer : Buffer.from(''),
protocols: Array.from(pInfoSelf.protocols)
})
pull(
values([msgSend]),
lp.encode(),
conn
)
})
}

View File

@@ -1,30 +0,0 @@
'use strict'
const protons = require('protons')
const schema = `
message Identify {
// protocolVersion determines compatibility between peers
optional string protocolVersion = 5; // e.g. ipfs/1.0.0
// agentVersion is like a UserAgent string in browsers, or client version in bittorrent
// includes the client name and client.
optional string agentVersion = 6; // e.g. go-ipfs/0.1.0
// publicKey is this node's public key (which also gives its node.ID)
// - may not need to be sent, as secure channel implies it has been sent.
// - then again, if we change / disable secure channel, may still want it.
optional bytes publicKey = 1;
// listenAddrs are the multiaddrs the sender node listens for open connections on
repeated bytes listenAddrs = 2;
// oservedAddr is the multiaddr of the remote endpoint that the sender node perceives
// this is useful information to convey to the other side, as it helps the remote endpoint
// determine whether its connection to the local peer goes through NAT.
optional bytes observedAddr = 4;
repeated string protocols = 3;
}
`
module.exports = protons(schema).Identify

View File

@@ -2,74 +2,61 @@
const FSM = require('fsm-event')
const EventEmitter = require('events').EventEmitter
const assert = require('assert')
const debug = require('debug')
const log = debug('libp2p')
log.error = debug('libp2p:error')
const errCode = require('err-code')
const promisify = require('promisify-es6')
const each = require('async/each')
const series = require('async/series')
const parallel = require('async/parallel')
const nextTick = require('async/nextTick')
const PeerBook = require('peer-book')
const PeerInfo = require('peer-info')
const Switch = require('./switch')
const Ping = require('./ping')
const Switch = require('libp2p-switch')
const Ping = require('libp2p-ping')
const WebSockets = require('libp2p-websockets')
const ConnectionManager = require('./connection-manager')
const ConnectionManager = require('libp2p-connection-manager')
const { emitFirst } = require('./util')
const peerRouting = require('./peer-routing')
const contentRouting = require('./content-routing')
const dht = require('./dht')
const pubsub = require('./pubsub')
const { getPeerInfoRemote } = require('./get-peer-info')
const getPeerInfo = require('./get-peer-info')
const validateConfig = require('./config').validate
const { codes } = require('./errors')
const notStarted = (action, state) => {
return errCode(
new Error(`libp2p cannot ${action} when not started; state is ${state}`),
codes.ERR_NODE_NOT_STARTED
)
}
const NOT_STARTED_ERROR_MESSAGE = 'The libp2p node is not started yet'
/**
* @fires Libp2p#error Emitted when an error occurs
* @fires Libp2p#peer:connect Emitted when a peer is connected to this node
* @fires Libp2p#peer:disconnect Emitted when a peer disconnects from this node
* @fires Libp2p#peer:discovery Emitted when a peer is discovered
* @fires Libp2p#start Emitted when the node and its services has started
* @fires Libp2p#stop Emitted when the node and its services has stopped
* @fires Node#error Emitted when an error occurs
* @fires Node#peer:connect Emitted when a peer is connected to this node
* @fires Node#peer:disconnect Emitted when a peer disconnects from this node
* @fires Node#peer:discovery Emitted when a peer is discovered
* @fires Node#start Emitted when the node and its services has started
* @fires Node#stop Emitted when the node and its services has stopped
*/
class Libp2p extends EventEmitter {
class Node extends EventEmitter {
constructor (_options) {
super()
// validateConfig will ensure the config is correct,
// and add default values where appropriate
this._options = validateConfig(_options)
_options = validateConfig(_options)
this.datastore = this._options.datastore
this.peerInfo = this._options.peerInfo
this.peerBook = this._options.peerBook || new PeerBook()
this.peerInfo = _options.peerInfo
this.peerBook = _options.peerBook || new PeerBook()
this._modules = this._options.modules
this._config = this._options.config
this._modules = _options.modules
this._config = _options.config
this._isStarted = false
this._transport = [] // Transport instances/references
this._discovery = [] // Discovery service instances/references
// create the switch, and listen for errors
this._switch = new Switch(this.peerInfo, this.peerBook, this._options.switch)
this._switch.on('error', (...args) => this.emit('error', ...args))
this._switch = new Switch(this.peerInfo, this.peerBook, _options.switch)
this.stats = this._switch.stats
this.connectionManager = new ConnectionManager(this, this._options.connectionManager)
this.connectionManager = new ConnectionManager(this, _options.connectionManager)
// Attach stream multiplexers
if (this._modules.streamMuxer) {
const muxers = this._modules.streamMuxer
let muxers = this._modules.streamMuxer
muxers.forEach((muxer) => this._switch.connection.addStreamMuxer(muxer))
// If muxer exists
@@ -82,6 +69,7 @@ class Libp2p extends EventEmitter {
// reuse this muxed connection
this._switch.on('peer-mux-established', (peerInfo) => {
this.emit('peer:connect', peerInfo)
this.peerBook.put(peerInfo)
})
this._switch.on('peer-mux-closed', (peerInfo) => {
@@ -89,17 +77,9 @@ class Libp2p extends EventEmitter {
})
}
// Events for anytime connections are created/removed
this._switch.on('connection:start', (peerInfo) => {
this.emit('connection:start', peerInfo)
})
this._switch.on('connection:end', (peerInfo) => {
this.emit('connection:end', peerInfo)
})
// Attach crypto channels
if (this._modules.connEncryption) {
const cryptos = this._modules.connEncryption
let cryptos = this._modules.connEncryption
cryptos.forEach((crypto) => {
this._switch.connection.crypto(crypto.tag, crypto.encrypt)
})
@@ -113,18 +93,22 @@ class Libp2p extends EventEmitter {
}
// dht provided components (peerRouting, contentRouting, dht)
if (this._config.dht.enabled) {
if (this._config.EXPERIMENTAL.dht) {
const DHT = this._modules.dht
const enabledDiscovery = this._config.dht.enabledDiscovery !== false
this._dht = new DHT(this._switch, {
datastore: this.datastore,
...this._config.dht
kBucketSize: this._config.dht.kBucketSize || 20,
enabledDiscovery,
// TODO make datastore an option of libp2p itself so
// that other things can use it as well
datastore: dht.datastore
})
}
// start pubsub
if (this._modules.pubsub && this._config.pubsub.enabled !== false) {
this.pubsub = pubsub(this, this._modules.pubsub, this._config.pubsub)
// enable/disable pubsub
if (this._config.EXPERIMENTAL.pubsub) {
this.pubsub = pubsub(this)
}
// Attach remaining APIs
@@ -133,6 +117,8 @@ class Libp2p extends EventEmitter {
this.contentRouting = contentRouting(this)
this.dht = dht(this)
this._getPeerInfo = getPeerInfo(this)
// Mount default protocols
Ping.mount(this._switch)
@@ -175,36 +161,6 @@ class Libp2p extends EventEmitter {
log.error(err)
this.emit('error', err)
})
// Once we start, emit and dial any peers we may have already discovered
this.state.on('STARTED', () => {
this.peerBook.getAllArray().forEach((peerInfo) => {
this.emit('peer:discovery', peerInfo)
this._maybeConnect(peerInfo)
})
})
this._peerDiscovered = this._peerDiscovered.bind(this)
// promisify all instance methods
;['start', 'stop', 'dial', 'dialProtocol', 'dialFSM', 'hangUp', 'ping'].forEach(method => {
this[method] = promisify(this[method], { context: this })
})
}
/**
* Overrides EventEmitter.emit to conditionally emit errors
* if there is a handler. If not, errors will be logged.
* @param {string} eventName
* @param {...any} args
* @returns {void}
*/
emit (eventName, ...args) {
if (eventName === 'error' && !this._events.error) {
log.error(...args)
} else {
super.emit(eventName, ...args)
}
}
/**
@@ -214,7 +170,7 @@ class Libp2p extends EventEmitter {
* @returns {void}
*/
start (callback = () => {}) {
emitFirst(this, ['error', 'start'], callback)
this.once('start', callback)
this.state('start')
}
@@ -225,7 +181,7 @@ class Libp2p extends EventEmitter {
* @returns {void}
*/
stop (callback = () => {}) {
emitFirst(this, ['error', 'stop'], callback)
this.once('stop', callback)
this.state('stop')
}
@@ -242,6 +198,8 @@ class Libp2p extends EventEmitter {
* @returns {void}
*/
dial (peer, callback) {
assert(this.isStarted(), NOT_STARTED_ERROR_MESSAGE)
this.dialProtocol(peer, null, callback)
}
@@ -256,19 +214,22 @@ class Libp2p extends EventEmitter {
* @returns {void}
*/
dialProtocol (peer, protocol, callback) {
if (!this.isStarted()) {
return callback(notStarted('dial', this.state._state))
}
assert(this.isStarted(), NOT_STARTED_ERROR_MESSAGE)
if (typeof protocol === 'function') {
callback = protocol
protocol = undefined
}
getPeerInfoRemote(peer, this)
.then(peerInfo => {
this._switch.dial(peerInfo, protocol, callback)
}, callback)
this._getPeerInfo(peer, (err, peerInfo) => {
if (err) { return callback(err) }
this._switch.dial(peerInfo, protocol, (err, conn) => {
if (err) { return callback(err) }
this.peerBook.put(peerInfo)
callback(null, conn)
})
})
}
/**
@@ -281,51 +242,46 @@ class Libp2p extends EventEmitter {
* @returns {void}
*/
dialFSM (peer, protocol, callback) {
if (!this.isStarted()) {
return callback(notStarted('dial', this.state._state))
}
assert(this.isStarted(), NOT_STARTED_ERROR_MESSAGE)
if (typeof protocol === 'function') {
callback = protocol
protocol = undefined
}
getPeerInfoRemote(peer, this)
.then(peerInfo => {
this._switch.dialFSM(peerInfo, protocol, callback)
}, callback)
this._getPeerInfo(peer, (err, peerInfo) => {
if (err) { return callback(err) }
const connFSM = this._switch.dialFSM(peerInfo, protocol, (err) => {
if (!err) {
this.peerBook.put(peerInfo)
}
})
callback(null, connFSM)
})
}
/**
* Disconnects from the given peer
*
* @param {PeerInfo|PeerId|Multiaddr|string} peer The peer to ping
* @param {function(Error)} callback
* @returns {void}
*/
hangUp (peer, callback) {
getPeerInfoRemote(peer, this)
.then(peerInfo => {
this._switch.hangUp(peerInfo, callback)
}, callback)
assert(this.isStarted(), NOT_STARTED_ERROR_MESSAGE)
this._getPeerInfo(peer, (err, peerInfo) => {
if (err) { return callback(err) }
this._switch.hangUp(peerInfo, callback)
})
}
/**
* Pings the provided peer
*
* @param {PeerInfo|PeerId|Multiaddr|string} peer The peer to ping
* @param {function(Error, Ping)} callback
* @returns {void}
*/
ping (peer, callback) {
if (!this.isStarted()) {
return callback(notStarted('ping', this.state._state))
return callback(new Error(NOT_STARTED_ERROR_MESSAGE))
}
getPeerInfoRemote(peer, this)
.then(peerInfo => {
callback(null, new Ping(this._switch, peerInfo))
}, callback)
this._getPeerInfo(peer, (err, peerInfo) => {
if (err) { return callback(err) }
callback(null, new Ping(this._switch, peerInfo))
})
}
handle (protocol, handlerFunc, matchFunc) {
@@ -350,7 +306,7 @@ class Libp2p extends EventEmitter {
this.peerInfo.multiaddrs.toArray().forEach((ma) => {
if (!ma.getPeerId()) {
maOld.push(ma)
maNew.push(ma.encapsulate('/p2p/' + this.peerInfo.id.toB58String()))
maNew.push(ma.encapsulate('/ipfs/' + this.peerInfo.id.toB58String()))
}
})
this.peerInfo.multiaddrs.replace(maOld, maNew)
@@ -361,13 +317,13 @@ class Libp2p extends EventEmitter {
let t
if (typeof Transport === 'function') {
t = new Transport({ libp2p: this })
t = new Transport()
} else {
t = Transport
}
if (t.filter(multiaddrs).length > 0) {
this._switch.transport.add(t.tag || t[Symbol.toStringTag], t)
this._switch.transport.add(t.tag || t.constructor.name, t)
} else if (WebSockets.isWebSockets(t)) {
// TODO find a cleaner way to signal that a transport is always used
// for dialing, even if no listener
@@ -387,6 +343,60 @@ class Libp2p extends EventEmitter {
this._switch.transport.add(ws.tag || ws.constructor.name, ws)
}
// all transports need to be setup before discover starts
if (this._modules.peerDiscovery) {
each(this._modules.peerDiscovery, (D, _cb) => {
let config = {}
if (D.tag &&
this._config.peerDiscovery &&
this._config.peerDiscovery[D.tag]) {
config = this._config.peerDiscovery[D.tag]
}
// If not configured to be enabled/disabled then enable by default
const enabled = config.enabled == null ? true : config.enabled
// If enabled then start it
if (enabled) {
let d
if (typeof D === 'function') {
d = new D(Object.assign({}, config, { peerInfo: this.peerInfo }))
} else {
d = D
}
d.on('peer', (peerInfo) => this.emit('peer:discovery', peerInfo))
this._discovery.push(d)
d.start(_cb)
} else {
_cb()
}
}, cb)
} else {
cb()
}
},
(cb) => {
// TODO: chicken-and-egg problem #1:
// have to set started here because DHT requires libp2p is already started
this._isStarted = true
if (this._dht) {
this._dht.start(cb)
} else {
cb()
}
},
(cb) => {
// TODO: chicken-and-egg problem #2:
// have to set started here because FloodSub requires libp2p is already started
if (this._floodSub) {
return this._floodSub.start(cb)
}
cb()
},
(cb) => {
// detect which multiaddrs we don't have a transport for and remove them
const multiaddrs = this.peerInfo.multiaddrs.toArray()
@@ -397,30 +407,6 @@ class Libp2p extends EventEmitter {
}
})
cb()
},
(cb) => {
if (this._dht) {
this._dht.start(() => {
this._dht.on('peer', this._peerDiscovered)
cb()
})
} else {
cb()
}
},
(cb) => {
if (this.pubsub) {
return this.pubsub.start(cb)
}
cb()
},
// Peer Discovery
(cb) => {
if (this._modules.peerDiscovery) {
this._setupPeerDiscovery(cb)
} else {
cb()
}
}
], (err) => {
if (err) {
@@ -435,39 +421,36 @@ class Libp2p extends EventEmitter {
_onStopping () {
series([
(cb) => {
// stop all discoveries before continuing with shutdown
parallel(
this._discovery.map((d) => {
d.removeListener('peer', this._peerDiscovered)
return (_cb) => d.stop((err) => {
log.error('an error occurred stopping the discovery service', err)
_cb()
})
}),
cb
)
if (this._modules.peerDiscovery) {
// stop all discoveries before continuing with shutdown
return parallel(
this._discovery.map((d) => {
return (_cb) => d.stop(() => { _cb() })
}),
cb
)
}
cb()
},
(cb) => {
if (this.pubsub) {
return this.pubsub.stop(cb)
if (this._floodSub) {
return this._floodSub.stop(cb)
}
cb()
},
(cb) => {
if (this._dht) {
this._dht.removeListener('peer', this._peerDiscovered)
return this._dht.stop(cb)
}
cb()
},
(cb) => {
this.connectionManager.stop()
this._switch.stop(cb)
// Ensures idempotency for restarts
this._switch.transport.removeAll(cb)
},
(cb) => {
// Ensures idempotent restarts, ignore any errors
// from removeAll, they're not useful at this point
this._switch.transport.removeAll(() => cb())
this.connectionManager.stop()
this._switch.stop(cb)
}
], (err) => {
if (err) {
@@ -477,107 +460,6 @@ class Libp2p extends EventEmitter {
this.state('done')
})
}
/**
* Handles discovered peers. Each discovered peer will be emitted via
* the `peer:discovery` event. If auto dial is enabled for libp2p
* and the current connection count is under the low watermark, the
* peer will be dialed.
*
* TODO: If `peerBook.put` becomes centralized, https://github.com/libp2p/js-libp2p/issues/345,
* it would be ideal if only new peers were emitted. Currently, with
* other modules adding peers to the `PeerBook` we have no way of knowing
* if a peer is new or not, so it has to be emitted.
*
* @private
* @param {PeerInfo} peerInfo
*/
_peerDiscovered (peerInfo) {
if (peerInfo.id.toB58String() === this.peerInfo.id.toB58String()) {
log.error(new Error(codes.ERR_DISCOVERED_SELF))
return
}
peerInfo = this.peerBook.put(peerInfo)
if (!this.isStarted()) return
this.emit('peer:discovery', peerInfo)
this._maybeConnect(peerInfo)
}
/**
* Will dial to the given `peerInfo` if the current number of
* connected peers is less than the configured `ConnectionManager`
* minPeers.
* @private
* @param {PeerInfo} peerInfo
*/
_maybeConnect (peerInfo) {
// If auto dialing is on, check if we should dial
if (this._config.peerDiscovery.autoDial === true && !peerInfo.isConnected()) {
const minPeers = this._options.connectionManager.minPeers || 0
if (minPeers > Object.keys(this._switch.connection.connections).length) {
log('connecting to discovered peer')
this._switch.dialer.connect(peerInfo, (err) => {
err && log.error('could not connect to discovered peer', err)
})
}
}
}
/**
* Initializes and starts peer discovery services
*
* @private
* @param {function(Error)} callback
*/
_setupPeerDiscovery (callback) {
for (const DiscoveryService of this._modules.peerDiscovery) {
let config = {
enabled: true // on by default
}
if (DiscoveryService.tag &&
this._config.peerDiscovery &&
this._config.peerDiscovery[DiscoveryService.tag]) {
config = { ...config, ...this._config.peerDiscovery[DiscoveryService.tag] }
}
if (config.enabled) {
let discoveryService
if (typeof DiscoveryService === 'function') {
discoveryService = new DiscoveryService(Object.assign({}, config, { peerInfo: this.peerInfo }))
} else {
discoveryService = DiscoveryService
}
discoveryService.on('peer', this._peerDiscovered)
this._discovery.push(discoveryService)
}
}
each(this._discovery, (d, cb) => {
d.start(cb)
}, callback)
}
}
module.exports = Libp2p
/**
* Like `new Libp2p(options)` except it will create a `PeerInfo`
* instance if one is not provided in options.
* @param {object} options Libp2p configuration options
* @param {function(Error, Libp2p)} callback
* @returns {void}
*/
module.exports.createLibp2p = promisify((options, callback) => {
if (options.peerInfo) {
return nextTick(callback, null, new Libp2p(options))
}
PeerInfo.create((err, peerInfo) => {
if (err) return callback(err)
options.peerInfo = peerInfo
callback(null, new Libp2p(options))
})
})
module.exports = Node

View File

@@ -2,7 +2,6 @@
const tryEach = require('async/tryEach')
const errCode = require('err-code')
const promisify = require('promisify-es6')
module.exports = (node) => {
const routers = node._modules.peerRouting || []
@@ -22,16 +21,16 @@ module.exports = (node) => {
* @param {function(Error, Result<Array>)} callback
* @returns {void}
*/
findPeer: promisify((id, options, callback) => {
findPeer: (id, options, callback) => {
if (!routers.length) {
callback(errCode(new Error('No peer routers available'), 'NO_ROUTERS_AVAILABLE'))
}
if (typeof options === 'function') {
callback = options
options = {}
}
if (!routers.length) {
callback(errCode(new Error('No peer routers available'), 'NO_ROUTERS_AVAILABLE'))
}
const tasks = routers.map((router) => {
return (cb) => router.findPeer(id, options, (err, result) => {
if (err) {
@@ -48,12 +47,12 @@ module.exports = (node) => {
})
tryEach(tasks, (err, results) => {
if (err) {
if (err && err.code !== 'NOT_FOUND') {
return callback(err)
}
results = results || []
callback(null, results)
})
})
}
}
}

View File

@@ -1,23 +0,0 @@
libp2p-ping JavaScript Implementation
=====================================
> IPFS ping protocol JavaScript implementation
**Note**: git history prior to merging into js-libp2p can be found in the original repository, https://github.com/libp2p/js-libp2p-ping.
## Usage
```javascript
var Ping = require('libp2p-ping')
Ping.mount(swarm) // Enable this peer to echo Ping requests
var p = new Ping(swarm, peerDst) // Ping peerDst, peerDst must be a peer-info object
p.on('ping', function (time) {
console.log(time + 'ms')
p.stop() // stop sending pings
})
p.start()
```

View File

@@ -1,6 +0,0 @@
'use strict'
module.exports = {
PROTOCOL: '/ipfs/ping/1.0.0',
PING_LENGTH: 32
}

View File

@@ -1,50 +0,0 @@
'use strict'
const pull = require('pull-stream/pull')
const handshake = require('pull-handshake')
const constants = require('./constants')
const PROTOCOL = constants.PROTOCOL
const PING_LENGTH = constants.PING_LENGTH
const debug = require('debug')
const log = debug('libp2p-ping')
log.error = debug('libp2p-ping:error')
function mount (swarm) {
swarm.handle(PROTOCOL, (protocol, conn) => {
const stream = handshake({ timeout: 0 })
const shake = stream.handshake
// receive and echo back
function next () {
shake.read(PING_LENGTH, (err, buf) => {
if (err === true) {
// stream closed
return
}
if (err) {
return log.error(err)
}
shake.write(buf)
return next()
})
}
pull(
conn,
stream,
conn
)
next()
})
}
function unmount (swarm) {
swarm.unhandle(PROTOCOL)
}
exports = module.exports
exports.mount = mount
exports.unmount = unmount

View File

@@ -1,7 +0,0 @@
'use strict'
const handler = require('./handler')
exports = module.exports = require('./ping')
exports.mount = handler.mount
exports.unmount = handler.unmount

View File

@@ -1,83 +0,0 @@
'use strict'
const EventEmitter = require('events').EventEmitter
const pull = require('pull-stream/pull')
const empty = require('pull-stream/sources/empty')
const handshake = require('pull-handshake')
const constants = require('./constants')
const util = require('./util')
const rnd = util.rnd
const debug = require('debug')
const log = debug('libp2p-ping')
log.error = debug('libp2p-ping:error')
const PROTOCOL = constants.PROTOCOL
const PING_LENGTH = constants.PING_LENGTH
class Ping extends EventEmitter {
constructor (swarm, peer) {
super()
this._stopped = false
this.peer = peer
this.swarm = swarm
}
start () {
log('dialing %s to %s', PROTOCOL, this.peer.id.toB58String())
this.swarm.dial(this.peer, PROTOCOL, (err, conn) => {
if (err) {
return this.emit('error', err)
}
const stream = handshake({ timeout: 0 })
this.shake = stream.handshake
pull(
stream,
conn,
stream
)
// write and wait to see ping back
const self = this
function next () {
const start = new Date()
const buf = rnd(PING_LENGTH)
self.shake.write(buf)
self.shake.read(PING_LENGTH, (err, bufBack) => {
const end = new Date()
if (err || !buf.equals(bufBack)) {
const err = new Error('Received wrong ping ack')
return self.emit('error', err)
}
self.emit('ping', end - start)
if (self._stopped) {
return
}
next()
})
}
next()
})
}
stop () {
if (this._stopped || !this.shake) {
return
}
this._stopped = true
pull(
empty(),
this.shake.rest()
)
}
}
module.exports = Ping

View File

@@ -1,13 +0,0 @@
'use strict'
const crypto = require('libp2p-crypto')
const constants = require('./constants')
exports = module.exports
exports.rnd = (length) => {
if (!length) {
length = constants.PING_LENGTH
}
return crypto.randomBytes(length)
}

View File

@@ -1,67 +0,0 @@
js-libp2p-pnet
==================
> Connection protection management for libp2p leveraging PSK encryption via XSalsa20.
**Note**: git history prior to merging into js-libp2p can be found in the original repository, https://github.com/libp2p/js-libp2p-pnet.
## Table of Contents
- [Usage](#usage)
- [Examples](#examples)
- [Private Shared Keys (PSK)](#private-shared-keys)
- [PSK Generation](#psk-generation)
- [Contribute](#contribute)
- [License](#license)
## Usage
```js
const Protector = require('libp2p-pnet')
const protector = new Protector(swarmKeyBuffer)
const privateConnection = protector.protect(myPublicConnection, (err) => { })
```
### Examples
[Private Networks with IPFS](./examples/pnet-ipfs)
### Private Shared Keys
Private Shared Keys are expected to be in the following format:
```
/key/swarm/psk/1.0.0/
/base16/
dffb7e3135399a8b1612b2aaca1c36a3a8ac2cd0cca51ceeb2ced87d308cac6d
```
### PSK Generation
A utility method has been created to generate a key for your private network. You can
use one of the methods below to generate your key.
#### From libp2p-pnet
If you have libp2p-pnet locally, you can run the following from the projects root.
```sh
node ./key-generator.js > swarm.key
```
#### From a module using libp2p
If you have a module locally that depends on libp2p-pnet, you can run the following from
that project, assuming the node_modules are installed.
```sh
node -e "require('libp2p-pnet').generate(process.stdout)" > swarm.key
```
#### Programmatically
```js
const writeKey = require('libp2p-pnet').generate
const swarmKey = Buffer.alloc(95)
writeKey(swarmKey)
fs.writeFileSync('swarm.key', swarmKey)
```

View File

@@ -1,98 +0,0 @@
'use strict'
const pull = require('pull-stream')
const debug = require('debug')
const Errors = require('./errors')
const xsalsa20 = require('xsalsa20')
const KEY_LENGTH = require('./key-generator').KEY_LENGTH
const log = debug('libp2p:pnet')
log.trace = debug('libp2p:pnet:trace')
log.err = debug('libp2p:pnet:err')
/**
* Creates a pull stream to encrypt messages in a private network
*
* @param {Buffer} nonce The nonce to use in encryption
* @param {Buffer} psk The private shared key to use in encryption
* @returns {PullStream} a through stream
*/
module.exports.createBoxStream = (nonce, psk) => {
const xor = xsalsa20(nonce, psk)
return pull(
ensureBuffer(),
pull.map((chunk) => {
return xor.update(chunk, chunk)
})
)
}
/**
* Creates a pull stream to decrypt messages in a private network
*
* @param {Object} remote Holds the nonce of the peer
* @param {Buffer} psk The private shared key to use in decryption
* @returns {PullStream} a through stream
*/
module.exports.createUnboxStream = (remote, psk) => {
let xor
return pull(
ensureBuffer(),
pull.map((chunk) => {
if (!xor) {
xor = xsalsa20(remote.nonce, psk)
log.trace('Decryption enabled')
}
return xor.update(chunk, chunk)
})
)
}
/**
* Decode the version 1 psk from the given Buffer
*
* @param {Buffer} pskBuffer
* @throws {INVALID_PSK}
* @returns {Object} The PSK metadata (tag, codecName, psk)
*/
module.exports.decodeV1PSK = (pskBuffer) => {
try {
// This should pull from multibase/multicodec to allow for
// more encoding flexibility. Ideally we'd consume the codecs
// from the buffer line by line to evaluate the next line
// programatically instead of making assumptions about the
// encodings of each line.
const metadata = pskBuffer.toString().split(/(?:\r\n|\r|\n)/g)
const pskTag = metadata.shift()
const codec = metadata.shift()
const psk = Buffer.from(metadata.shift(), 'hex')
if (psk.byteLength !== KEY_LENGTH) {
throw new Error(Errors.INVALID_PSK)
}
return {
tag: pskTag,
codecName: codec,
psk: psk
}
} catch (err) {
throw new Error(Errors.INVALID_PSK)
}
}
/**
* Returns a through pull-stream that ensures the passed chunks
* are buffers instead of strings
* @returns {PullStream} a through stream
*/
function ensureBuffer () {
return pull.map((chunk) => {
if (typeof chunk === 'string') {
return Buffer.from(chunk, 'utf-8')
}
return chunk
})
}

View File

@@ -1,7 +0,0 @@
'use strict'
module.exports.INVALID_PEER = 'Not a valid peer connection'
module.exports.INVALID_PSK = 'Your private shared key is invalid'
module.exports.NO_LOCAL_ID = 'No local private key provided'
module.exports.NO_HANDSHAKE_CONNECTION = 'No connection for the handshake provided'
module.exports.STREAM_ENDED = 'Stream ended prematurely'

View File

@@ -1,70 +0,0 @@
'use strict'
const pull = require('pull-stream')
const Connection = require('interface-connection').Connection
const assert = require('assert')
const Errors = require('./errors')
const State = require('./state')
const decodeV1PSK = require('./crypto').decodeV1PSK
const debug = require('debug')
const log = debug('libp2p:pnet')
log.err = debug('libp2p:pnet:err')
/**
* Takes a Private Shared Key (psk) and provides a `protect` method
* for wrapping existing connections in a private encryption stream
*/
class Protector {
/**
* @param {Buffer} keyBuffer The private shared key buffer
* @constructor
*/
constructor (keyBuffer) {
const decodedPSK = decodeV1PSK(keyBuffer)
this.psk = decodedPSK.psk
this.tag = decodedPSK.tag
}
/**
* Takes a given Connection and creates a privaste encryption stream
* between its two peers from the PSK the Protector instance was
* created with.
*
* @param {Connection} connection The connection to protect
* @param {function(Error)} callback
* @returns {Connection} The protected connection
*/
protect (connection, callback) {
assert(connection, Errors.NO_HANDSHAKE_CONNECTION)
const protectedConnection = new Connection(undefined, connection)
const state = new State(this.psk)
log('protecting the connection')
// Run the connection through an encryptor
pull(
connection,
state.encrypt((err, encryptedOuterStream) => {
if (err) {
log.err('There was an error attempting to protect the connection', err)
return callback(err)
}
connection.getPeerInfo(() => {
protectedConnection.setInnerConn(new Connection(encryptedOuterStream, connection))
log('the connection has been successfully wrapped by the protector')
callback()
})
}),
connection
)
return protectedConnection
}
}
module.exports = Protector
module.exports.errors = Errors
module.exports.generate = require('./key-generator')

View File

@@ -1,22 +0,0 @@
'use strict'
const crypto = require('crypto')
const KEY_LENGTH = 32
/**
* Generates a PSK that can be used in a libp2p-pnet private network
* @param {Writer} writer An object containing a `write` method
* @returns {void}
*/
function generate (writer) {
const psk = crypto.randomBytes(KEY_LENGTH).toString('hex')
writer.write('/key/swarm/psk/1.0.0/\n/base16/\n' + psk)
}
module.exports = generate
module.exports.NONCE_LENGTH = 24
module.exports.KEY_LENGTH = KEY_LENGTH
if (require.main === module) {
generate(process.stdout)
}

View File

@@ -1,110 +0,0 @@
'use strict'
const crypto = require('crypto')
const debug = require('debug')
const pair = require('pull-pair')
const Reader = require('pull-reader')
const cat = require('pull-cat')
const pull = require('pull-stream')
const deferred = require('pull-defer')
const cryptoStreams = require('./crypto')
const NONCE_LENGTH = require('./key-generator').NONCE_LENGTH
const log = debug('libp2p:pnet')
log.err = debug('libp2p:pnet:err')
log.trace = debug('libp2p:pnet:trace')
/**
* Keeps track of the state of a given connection, such as the local psk
* and local and remote nonces for encryption/decryption
*/
class State {
/**
* @param {Buffer} psk The key buffer used for encryption
* @constructor
*/
constructor (psk) {
this.local = {
nonce: Buffer.from(
crypto.randomBytes(NONCE_LENGTH)
),
psk: psk
}
this.remote = { nonce: null }
this.rawReader = Reader(60e3)
this.encryptedReader = Reader(60e3)
this.rawPairStream = pair()
this.encryptedPairStream = pair()
// The raw, pair stream
this.innerRawStream = null
this.outerRawStream = {
sink: this.rawReader,
source: cat([
pull.values([
this.local.nonce
]),
this.rawPairStream.source
])
}
// The encrypted, pair stream
this.innerEncryptedStream = {
sink: this.encryptedReader,
source: this.encryptedPairStream.source
}
this.outerEncryptedStream = null
}
/**
* Creates encryption streams for the given state
*
* @param {function(Error, Connection)} callback
* @returns {void}
*/
encrypt (callback) {
// The outer stream needs to be returned before we setup the
// rest of the streams, so we're delaying the execution
setTimeout(() => {
// Read the nonce first, once we have it resolve the
// deferred source, so we keep reading
const deferredSource = deferred.source()
this.rawReader.read(NONCE_LENGTH, (err, data) => {
if (err) {
log.err('There was an error attempting to read the nonce', err)
}
log.trace('remote nonce received')
this.remote.nonce = data
deferredSource.resolve(this.rawReader.read())
})
this.innerRawStream = {
sink: this.rawPairStream.sink,
source: deferredSource
}
// Create the pull exchange between the two inner streams
pull(
this.innerRawStream,
cryptoStreams.createUnboxStream(this.remote, this.local.psk),
this.innerEncryptedStream,
cryptoStreams.createBoxStream(this.local.nonce, this.local.psk),
this.innerRawStream
)
this.outerEncryptedStream = {
sink: this.encryptedPairStream.sink,
source: this.encryptedReader.read()
}
callback(null, this.outerEncryptedStream)
}, 0)
return this.outerRawStream
}
}
module.exports = State

View File

@@ -1,130 +1,77 @@
'use strict'
const nextTick = require('async/nextTick')
const { messages, codes } = require('./errors')
const promisify = require('promisify-es6')
const setImmediate = require('async/setImmediate')
const NOT_STARTED_YET = require('./error-messages').NOT_STARTED_YET
const FloodSub = require('libp2p-floodsub')
const errCode = require('err-code')
module.exports = (node) => {
const floodSub = new FloodSub(node)
module.exports = (node, Pubsub, config) => {
const pubsub = new Pubsub(node, config)
node._floodSub = floodSub
return {
/**
* Subscribe the given handler to a pubsub topic
*
* @param {string} topic
* @param {function} handler The handler to subscribe
* @param {object|null} [options]
* @param {function} [callback] An optional callback
*
* @returns {Promise|void} A promise is returned if no callback is provided
*
* @example <caption>Subscribe a handler to a topic</caption>
*
* // `null` must be passed for options until subscribe is no longer using promisify
* const handler = (message) => { }
* await libp2p.subscribe(topic, handler, null)
*
* @example <caption>Use a callback instead of the Promise api</caption>
*
* // `options` may be passed or omitted when supplying a callback
* const handler = (message) => { }
* libp2p.subscribe(topic, handler, callback)
*/
subscribe: promisify((topic, handler, options, callback) => {
subscribe: (topic, options, handler, callback) => {
if (typeof options === 'function') {
callback = options
callback = handler
handler = options
options = {}
}
if (!node.isStarted() && !pubsub.started) {
return nextTick(callback, errCode(new Error(messages.NOT_STARTED_YET), codes.PUBSUB_NOT_STARTED))
if (!node.isStarted() && !floodSub.started) {
return setImmediate(() => callback(new Error(NOT_STARTED_YET)))
}
function subscribe (cb) {
if (pubsub.listenerCount(topic) === 0) {
pubsub.subscribe(topic)
if (floodSub.listenerCount(topic) === 0) {
floodSub.subscribe(topic)
}
pubsub.on(topic, handler)
nextTick(cb)
floodSub.on(topic, handler)
setImmediate(cb)
}
subscribe(callback)
}),
},
/**
* Unsubscribes from a pubsub topic
*
* @param {string} topic
* @param {function|null} handler The handler to unsubscribe from
* @param {function} [callback] An optional callback
*
* @returns {Promise|void} A promise is returned if no callback is provided
*
* @example <caption>Unsubscribe a topic for all handlers</caption>
*
* // `null` must be passed until unsubscribe is no longer using promisify
* await libp2p.unsubscribe(topic, null)
*
* @example <caption>Unsubscribe a topic for 1 handler</caption>
*
* await libp2p.unsubscribe(topic, handler)
*
* @example <caption>Use a callback instead of the Promise api</caption>
*
* libp2p.unsubscribe(topic, handler, callback)
*/
unsubscribe: promisify((topic, handler, callback) => {
if (!node.isStarted() && !pubsub.started) {
return nextTick(callback, errCode(new Error(messages.NOT_STARTED_YET), codes.PUBSUB_NOT_STARTED))
unsubscribe: (topic, handler) => {
if (!node.isStarted() && !floodSub.started) {
throw new Error(NOT_STARTED_YET)
}
if (!handler) {
pubsub.removeAllListeners(topic)
} else {
pubsub.removeListener(topic, handler)
floodSub.removeListener(topic, handler)
if (floodSub.listenerCount(topic) === 0) {
floodSub.unsubscribe(topic)
}
},
publish: (topic, data, callback) => {
if (!node.isStarted() && !floodSub.started) {
return setImmediate(() => callback(new Error(NOT_STARTED_YET)))
}
if (pubsub.listenerCount(topic) === 0) {
pubsub.unsubscribe(topic)
if (!Buffer.isBuffer(data)) {
return setImmediate(() => callback(new Error('data must be a Buffer')))
}
if (typeof callback === 'function') {
return nextTick(() => callback())
floodSub.publish(topic, data)
setImmediate(() => callback())
},
ls: (callback) => {
if (!node.isStarted() && !floodSub.started) {
return setImmediate(() => callback(new Error(NOT_STARTED_YET)))
}
return Promise.resolve()
}),
const subscriptions = Array.from(floodSub.subscriptions)
publish: promisify((topic, data, callback) => {
if (!node.isStarted() && !pubsub.started) {
return nextTick(callback, errCode(new Error(messages.NOT_STARTED_YET), codes.PUBSUB_NOT_STARTED))
}
setImmediate(() => callback(null, subscriptions))
},
try {
data = Buffer.from(data)
} catch (err) {
return nextTick(callback, errCode(new Error('data must be convertible to a Buffer'), 'ERR_DATA_IS_NOT_VALID'))
}
pubsub.publish(topic, data, callback)
}),
ls: promisify((callback) => {
if (!node.isStarted() && !pubsub.started) {
return nextTick(callback, errCode(new Error(messages.NOT_STARTED_YET), codes.PUBSUB_NOT_STARTED))
}
const subscriptions = Array.from(pubsub.subscriptions)
nextTick(() => callback(null, subscriptions))
}),
peers: promisify((topic, callback) => {
if (!node.isStarted() && !pubsub.started) {
return nextTick(callback, errCode(new Error(messages.NOT_STARTED_YET), codes.PUBSUB_NOT_STARTED))
peers: (topic, callback) => {
if (!node.isStarted() && !floodSub.started) {
return setImmediate(() => callback(new Error(NOT_STARTED_YET)))
}
if (typeof topic === 'function') {
@@ -132,19 +79,15 @@ module.exports = (node, Pubsub, config) => {
topic = null
}
const peers = Array.from(pubsub.peers.values())
const peers = Array.from(floodSub.peers.values())
.filter((peer) => topic ? peer.topics.has(topic) : true)
.map((peer) => peer.info.id.toB58String())
nextTick(() => callback(null, peers))
}),
setMaxListeners (n) {
return pubsub.setMaxListeners(n)
setImmediate(() => callback(null, peers))
},
start: promisify((cb) => pubsub.start(cb)),
stop: promisify((cb) => pubsub.stop(cb))
setMaxListeners (n) {
return floodSub.setMaxListeners(n)
}
}
}

View File

@@ -1,423 +0,0 @@
libp2p-switch JavaScript implementation
======================================
> libp2p-switch is a dialer machine, it leverages the multiple libp2p transports, stream muxers, crypto channels and other connection upgrades to dial to peers in the libp2p network. It also supports Protocol Multiplexing through a multicodec and multistream-select handshake.
**Note**: git history prior to merging into js-libp2p can be found in the original repository, https://github.com/libp2p/js-libp2p-switch.
## Table of Contents
- [Install](#install)
- [Usage](#usage)
- [Create a libp2p switch](#create-a-libp2p-switch)
- [API](#api)
- [`switch.connection`](#switchconnection)
- [`switch.dial(peer, protocol, callback)`](#switchdialpeer-protocol-callback)
- [`switch.dialFSM(peer, protocol, callback)`](#switchdialfsmpeer-protocol-callback)
- [`switch.handle(protocol, handlerFunc, matchFunc)`](#switchhandleprotocol-handlerfunc-matchfunc)
- [`switch.hangUp(peer, callback)`](#switchhanguppeer-callback)
- [`switch.start(callback)`](#switchstartcallback)
- [`switch.stop(callback)`](#switchstopcallback)
- [`switch.stats`](#stats-api)
- [`switch.unhandle(protocol)`](#switchunhandleprotocol)
- [Internal Transports API](#internal-transports-api)
- [Design Notes](#design-notes)
- [Multitransport](#multitransport)
- [Connection upgrades](#connection-upgrades)
- [Identify](#identify)
- [Notes](#notes)
- [Contribute](#contribute)
- [License](#license)
## Install
```bash
> npm install libp2p-switch --save
```
## Usage
### Create a libp2p Switch
```JavaScript
const switch = require('libp2p-switch')
const sw = new switch(peerInfo , peerBook [, options])
```
If defined, `options` should be an object with the following keys and respective values:
- `denyTTL`: - number of ms a peer should not be dialable to after it errors. Each successive deny will increase the TTL from the base value. Defaults to 5 minutes
- `denyAttempts`: - number of times a peer can be denied before they are permanently denied. Defaults to 5.
- `maxParallelDials`: - number of concurrent dials the switch should allow. Defaults to `100`
- `maxColdCalls`: - number of queued cold calls that are allowed. Defaults to `50`
- `dialTimeout`: - number of ms a dial to a peer should be allowed to run. Defaults to `30000` (30 seconds)
- `stats`: an object with the following keys and respective values:
- `maxOldPeersRetention`: maximum old peers retention. For when peers disconnect and keeping the stats around in case they reconnect. Defaults to `100`.
- `computeThrottleMaxQueueSize`: maximum queue size to perform stats computation throttling. Defaults to `1000`.
- `computeThrottleTimeout`: Throttle timeout, in miliseconds. Defaults to `2000`,
- `movingAverageIntervals`: Array containin the intervals, in miliseconds, for which moving averages are calculated. Defaults to:
```js
[
60 * 1000, // 1 minute
5 * 60 * 1000, // 5 minutes
15 * 60 * 1000 // 15 minutes
]
```
### Private Networks
libp2p-switch supports private networking. In order to enabled private networks, the `switch.protector` must be
set and must contain a `protect` method. You can see an example of this in the [private network
tests]([./test/pnet.node.js]).
## API
- peerInfo is a [PeerInfo](https://github.com/libp2p/js-peer-info) object that has the peer information.
- peerBook is a [PeerBook](https://github.com/libp2p/js-peer-book) object that stores all the known peers.
### `switch.connection`
##### `switch.connection.addUpgrade()`
A connection upgrade must be able to receive and return something that implements the [interface-connection](https://github.com/libp2p/interface-connection) specification.
> **WIP**
##### `switch.connection.addStreamMuxer(muxer)`
Upgrading a connection to use a stream muxer is still considered an upgrade, but a special case since once this connection is applied, the returned obj will implement the [interface-stream-muxer](https://github.com/libp2p/interface-stream-muxer) spec.
- `muxer`
##### `switch.connection.reuse()`
Enable the identify protocol.
##### `switch.connection.crypto([tag, encrypt])`
Enable a specified crypto protocol. By default no encryption is used, aka `plaintext`. If called with no arguments it resets to use `plaintext`.
You can use for example [libp2p-secio](https://github.com/libp2p/js-libp2p-secio) like this
```js
const secio = require('libp2p-secio')
switch.connection.crypto(secio.tag, secio.encrypt)
```
##### `switch.connection.enableCircuitRelay(options, callback)`
Enable circuit relaying.
- `options`
- enabled - activates relay dialing and listening functionality
- hop - an object with two properties
- enabled - enables circuit relaying
- active - is it an active or passive relay (default false)
- `callback`
### `switch.dial(peer, protocol, callback)`
dial uses the best transport (whatever works first, in the future we can have some criteria), and jump starts the connection until the point where we have to negotiate the protocol. If a muxer is available, then drop the muxer onto that connection. Good to warm up connections or to check for connectivity. If we have already a muxer for that peerInfo, then do nothing.
- `peer`: can be an instance of [PeerInfo][], [PeerId][] or [multiaddr][]
- `protocol`
- `callback`
### `switch.dialFSM(peer, protocol, callback)`
works like dial, but calls back with a [Connection State Machine](#connection-state-machine)
- `peer`: can be an instance of [PeerInfo][], [PeerId][] or [multiaddr][]
- `protocol`: String that defines the protocol (e.g '/ipfs/bitswap/1.1.0') to be used
- `callback`: Function with signature `function (err, connFSM) {}` where `connFSM` is a [Connection State Machine](#connection-state-machine)
#### Connection State Machine
Connection state machines emit a number of events that can be used to determine the current state of the connection
and to received the underlying connection that can be used to transfer data.
### `switch.dialer.connect(peer, options, callback)`
a low priority dial to the provided peer. Calls to `dial` and `dialFSM` will take priority. This should be used when an application only wishes to establish connections to new peers, such as during peer discovery when there is a low peer count. Currently, anything greater than the HIGH_PRIORITY (10) will be placed into the cold call queue, and anything less than or equal to the HIGH_PRIORITY will be added to the normal queue.
- `peer`: can be an instance of [PeerInfo][], [PeerId][] or [multiaddr][]
- `options`: Optional
- `options.priority`: Number of the priority of the dial, defaults to 20.
- `options.useFSM`: Boolean of whether or not to callback with a [Connection State Machine](#connection-state-machine)
- `callback`: Function with signature `function (err, connFSM) {}` where `connFSM` is a [Connection State Machine](#connection-state-machine)
##### Events
- `error`: emitted whenever a fatal error occurs with the connection; the error will be emitted.
- `error:upgrade_failed`: emitted whenever the connection fails to upgrade with a muxer, this is not fatal.
- `error:connection_attempt_failed`: emitted whenever a dial attempt fails for a given transport. An array of errors is emitted.
- `connection`: emitted whenever a useable connection has been established; the underlying [Connection](https://github.com/libp2p/interface-connection) will be emitted.
- `close`: emitted when the connection has closed.
### `switch.handle(protocol, handlerFunc, matchFunc)`
Handle a new protocol.
- `protocol`
- `handlerFunc` - function called when we receive a dial on `protocol. Signature must be `function (protocol, conn) {}`
- `matchFunc` - matchFunc for multistream-select
### `switch.hangUp(peer, callback)`
Hang up the muxed connection we have with the peer.
- `peer`: can be an instance of [PeerInfo][], [PeerId][] or [multiaddr][]
- `callback`
### `switch.on('error', (err) => {})`
Emitted when the switch encounters an error.
- `err`: instance of [Error][]
### `switch.on('peer-mux-established', (peer) => {})`
- `peer`: is instance of [PeerInfo][] that has info of the peer we have just established a muxed connection with.
### `switch.on('peer-mux-closed', (peer) => {})`
- `peer`: is instance of [PeerInfo][] that has info of the peer we have just closed a muxed connection with.
### `switch.on('connection:start', (peer) => {})`
This will be triggered anytime a new connection is created.
- `peer`: is instance of [PeerInfo][] that has info of the peer we have just started a connection with.
### `switch.on('connection:end', (peer) => {})`
This will be triggered anytime an existing connection, regardless of state, is removed from the switch's internal connection tracking.
- `peer`: is instance of [PeerInfo][] that has info of the peer we have just closed a connection with.
### `switch.on('start', () => {})`
Emitted when the switch has successfully started.
### `switch.on('stop', () => {})`
Emitted when the switch has successfully stopped.
### `switch.start(callback)`
Start listening on all added transports that are available on the current `peerInfo`.
### `switch.stop(callback)`
Close all the listeners and muxers.
- `callback`
### Stats API
##### `switch.stats.emit('update')`
Every time any stat value changes, this object emits an `update` event.
#### Global stats
##### `switch.stats.global.snapshot`
Should return a stats snapshot, which is an object containing the following keys and respective values:
- dataSent: amount of bytes sent, [Big](https://github.com/MikeMcl/big.js#readme) number
- dataReceived: amount of bytes received, [Big](https://github.com/MikeMcl/big.js#readme) number
##### `switch.stats.global.movingAverages`
Returns an object containing the following keys:
- dataSent
- dataReceived
Each one of them contains an object that has a key for each interval (`60000`, `300000` and `900000` miliseconds).
Each one of these values is [an exponential moving-average instance](https://github.com/pgte/moving-average#readme).
#### Per-transport stats
##### `switch.stats.transports()`
Returns an array containing the tags (string) for each observed transport.
##### `switch.stats.forTransport(transportTag).snapshot`
Should return a stats snapshot, which is an object containing the following keys and respective values:
- dataSent: amount of bytes sent, [Big](https://github.com/MikeMcl/big.js#readme) number
- dataReceived: amount of bytes received, [Big](https://github.com/MikeMcl/big.js#readme) number
##### `switch.stats.forTransport(transportTag).movingAverages`
Returns an object containing the following keys:
dataSent
dataReceived
Each one of them contains an object that has a key for each interval (`60000`, `300000` and `900000` miliseconds).
Each one of these values is [an exponential moving-average instance](https://github.com/pgte/moving-average#readme).
#### Per-protocol stats
##### `switch.stats.protocols()`
Returns an array containing the tags (string) for each observed protocol.
##### `switch.stats.forProtocol(protocolTag).snapshot`
Should return a stats snapshot, which is an object containing the following keys and respective values:
- dataSent: amount of bytes sent, [Big](https://github.com/MikeMcl/big.js#readme) number
- dataReceived: amount of bytes received, [Big](https://github.com/MikeMcl/big.js#readme) number
##### `switch.stats.forProtocol(protocolTag).movingAverages`
Returns an object containing the following keys:
- dataSent
- dataReceived
Each one of them contains an object that has a key for each interval (`60000`, `300000` and `900000` miliseconds).
Each one of these values is [an exponential moving-average instance](https://github.com/pgte/moving-average#readme).
#### Per-peer stats
##### `switch.stats.peers()`
Returns an array containing the peerIDs (B58-encoded string) for each observed peer.
##### `switch.stats.forPeer(peerId:String).snapshot`
Should return a stats snapshot, which is an object containing the following keys and respective values:
- dataSent: amount of bytes sent, [Big](https://github.com/MikeMcl/big.js#readme) number
- dataReceived: amount of bytes received, [Big](https://github.com/MikeMcl/big.js#readme) number
##### `switch.stats.forPeer(peerId:String).movingAverages`
Returns an object containing the following keys:
- dataSent
- dataReceived
Each one of them contains an object that has a key for each interval (`60000`, `300000` and `900000` miliseconds).
Each one of these values is [an exponential moving-average instance](https://github.com/pgte/moving-average#readme).
#### Stats update interval
Stats are not updated in real-time. Instead, measurements are buffered and stats are updated at an interval. The maximum interval can be defined through the `Switch` constructor option `stats.computeThrottleTimeout`, defined in miliseconds.
### `switch.unhandle(protocol)`
Unhandle a protocol.
- `protocol`
### Internal Transports API
##### `switch.transport.add(key, transport, options)`
libp2p-switch expects transports that implement [interface-transport](https://github.com/libp2p/interface-transport). For example [libp2p-tcp](https://github.com/libp2p/js-libp2p-tcp).
- `key` - the transport identifier.
- `transport` -
- `options` -
##### `switch.transport.dial(key, multiaddrs, callback)`
Dial to a peer on a specific transport.
- `key`
- `multiaddrs`
- `callback`
##### `switch.transport.listen(key, options, handler, callback)`
Set a transport to start listening mode.
- `key`
- `options`
- `handler`
- `callback`
##### `switch.transport.close(key, callback)`
Close the listeners of a given transport.
- `key`
- `callback`
## Design Notes
### Multitransport
libp2p is designed to support multiple transports at the same time. While peers are identified by their ID (which are generated from their public keys), the addresses of each pair may vary, depending the device where they are being run or the network in which they are accessible through.
In order for a transport to be supported, it has to follow the [interface-transport](https://github.com/libp2p/interface-transport) spec.
### Connection upgrades
Each connection in libp2p follows the [interface-connection](https://github.com/libp2p/interface-connection) spec. This design decision enables libp2p to have upgradable transports.
We think of `upgrade` as a very important notion when we are talking about connections, we can see mechanisms like: stream multiplexing, congestion control, encrypted channels, multipath, simulcast, etc, as `upgrades` to a connection. A connection can be a simple and with no guarantees, drop a packet on the network with a destination thing, a transport in the other hand can be a connection and or a set of different upgrades that are mounted on top of each other, giving extra functionality to that connection and therefore `upgrading` it.
Types of upgrades to a connection:
- encrypted channel (with TLS for e.g)
- congestion flow (some transports don't have it by default)
- multipath (open several connections and abstract it as a single connection)
- simulcast (still really thinking this one through, it might be interesting to send a packet through different connections under some hard network circumstances)
- stream-muxer - this a special case, because once we upgrade a connection to a stream-muxer, we can open more streams (multiplex them) on a single stream, also enabling us to reuse the underlying dialed transport
We also want to enable flexibility when it comes to upgrading a connection, for example, we might that all dialed transports pass through the encrypted channel upgrade, but not the congestion flow, specially when a transport might have already some underlying properties (UDP vs TCP vs WebRTC vs every other transport protocol)
### Identify
Identify is a protocol that switchs mounts on top of itself, to identify the connections between any two peers. E.g:
- a) peer A dials a conn to peer B
- b) that conn gets upgraded to a stream multiplexer that both peers agree
- c) peer B executes de identify protocol
- d) peer B now can open streams to peer A, knowing which is the
identity of peer A
In addition to this, we also share the "observed addresses" by the other peer, which is extremely useful information for different kinds of network topologies.
### Notes
To avoid the confusion between connection, stream, transport, and other names that represent an abstraction of data flow between two points, we use terms as:
- connection - something that implements the transversal expectations of a stream between two peers, including the benefits of using a stream plus having a way to do half duplex, full duplex
- transport - something that as a dial/listen interface and return objs that implement a connection interface
### This module uses `pull-streams`
We expose a streaming interface based on `pull-streams`, rather then on the Node.js core streams implementation (aka Node.js streams). `pull-streams` offers us a better mechanism for error handling and flow control guarantees. If you would like to know more about why we did this, see the discussion at this [issue](https://github.com/ipfs/js-ipfs/issues/362).
You can learn more about pull-streams at:
- [The history of Node.js streams, nodebp April 2014](https://www.youtube.com/watch?v=g5ewQEuXjsQ)
- [The history of streams, 2016](http://dominictarr.com/post/145135293917/history-of-streams)
- [pull-streams, the simple streaming primitive](http://dominictarr.com/post/149248845122/pull-streams-pull-streams-are-a-very-simple)
- [pull-streams documentation](https://pull-stream.github.io/)
#### Converting `pull-streams` to Node.js Streams
If you are a Node.js streams user, you can convert a pull-stream to a Node.js stream using the module [`pull-stream-to-stream`](https://github.com/pull-stream/pull-stream-to-stream), giving you an instance of a Node.js stream that is linked to the pull-stream. For example:
```js
const pullToStream = require('pull-stream-to-stream')
const nodeStreamInstance = pullToStream(pullStreamInstance)
// nodeStreamInstance is an instance of a Node.js Stream
```
To learn more about this utility, visit https://pull-stream.github.io/#pull-stream-to-stream.

View File

@@ -1,126 +0,0 @@
'use strict'
const EventEmitter = require('events').EventEmitter
const debug = require('debug')
const withIs = require('class-is')
class BaseConnection extends EventEmitter {
constructor ({ _switch, name }) {
super()
this.switch = _switch
this.ourPeerInfo = this.switch._peerInfo
this.log = debug(`libp2p:conn:${name}`)
this.log.error = debug(`libp2p:conn:${name}:error`)
}
/**
* Puts the state into its disconnecting flow
*
* @param {Error} err Will be emitted if provided
* @returns {void}
*/
close (err) {
if (this._state._state === 'DISCONNECTING') return
this.log('closing connection to %s', this.theirB58Id)
if (err && this._events.error) {
this.emit('error', err)
}
this._state('disconnect')
}
emit (eventName, ...args) {
if (eventName === 'error' && !this._events.error) {
this.log.error(...args)
} else {
super.emit(eventName, ...args)
}
}
/**
* Gets the current state of the connection
*
* @returns {string} The current state of the connection
*/
getState () {
return this._state._state
}
/**
* Puts the state into encrypting mode
*
* @returns {void}
*/
encrypt () {
this._state('encrypt')
}
/**
* Puts the state into privatizing mode
*
* @returns {void}
*/
protect () {
this._state('privatize')
}
/**
* Puts the state into muxing mode
*
* @returns {void}
*/
upgrade () {
this._state('upgrade')
}
/**
* Event handler for disconnected.
*
* @fires BaseConnection#close
* @returns {void}
*/
_onDisconnected () {
this.switch.connection.remove(this)
this.log('disconnected from %s', this.theirB58Id)
this.emit('close')
this.removeAllListeners()
}
/**
* Event handler for privatized
*
* @fires BaseConnection#private
* @returns {void}
*/
_onPrivatized () {
this.emit('private', this.conn)
}
/**
* Wraps this.conn with the Switch.protector for private connections
*
* @private
* @fires ConnectionFSM#error
* @returns {void}
*/
_onPrivatizing () {
if (!this.switch.protector) {
return this._state('done')
}
this.conn = this.switch.protector.protect(this.conn, (err) => {
if (err) {
return this.close(err)
}
this.log('successfully privatized conn to %s', this.theirB58Id)
this.conn.setPeerInfo(this.theirPeerInfo)
this._state('done')
})
}
}
module.exports = withIs(BaseConnection, {
className: 'BaseConnection',
symbolName: 'libp2p-switch/BaseConnection'
})

Some files were not shown because too many files have changed in this diff Show More