feat: rendezvous protocol initial implementation

.aegir.js

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+'use strict'
+
+const Libp2p = require('libp2p')
+const { MULTIADDRS_WEBSOCKETS } = require('./test/fixtures/browser')
+const Peers = require('./test/fixtures/peers')
+const PeerId = require('peer-id')
+const WebSockets = require('libp2p-websockets')
+const Muxer = require('libp2p-mplex')
+const { NOISE: Crypto } = require('libp2p-noise')
+
+const delay = require('delay')
+const execa = require('execa')
+const pWaitFor = require('p-wait-for')
+const isCI = require('is-ci')
+
+let libp2p
+let containerId
+
+const before = async () => {
+  // Use the last peer
+  const peerId = await PeerId.createFromJSON(Peers[Peers.length - 1])
+
+  libp2p = new Libp2p({
+    addresses: {
+      listen: [MULTIADDRS_WEBSOCKETS[0]]
+    },
+    peerId,
+    modules: {
+      transport: [WebSockets],
+      streamMuxer: [Muxer],
+      connEncryption: [Crypto]
+    },
+    config: {
+      relay: {
+        enabled: true,
+        hop: {
+          enabled: true,
+          active: false
+        }
+      }
+    }
+  })
+
+  await libp2p.start()
+
+  // TODO: if not running test suite in Node, can also stop here
+  // https://github.com/ipfs/aegir/issues/707
+  // CI runs own datastore service
+  if (isCI) {
+    return
+  }
+
+  const procResult = execa.commandSync('docker run -p 3306:3306 -e MYSQL_ROOT_PASSWORD=test-secret-pw -e MYSQL_DATABASE=libp2p_rendezvous_db -d mysql:8 --default-authentication-plugin=mysql_native_password', {
+    all: true
+  })
+  containerId = procResult.stdout
+
+  console.log(`wait for docker container ${containerId} to be ready`)
+
+  await pWaitFor(() => {
+    const procCheck = execa.commandSync(`docker logs ${containerId}`)
+    const logs = procCheck.stdout + procCheck.stderr // Docker/MySQL sends to the stderr the ready for connections...
+
+    return logs.includes('ready for connections')
+  }, {
+    interval: 5000
+  })
+  // Some more time waiting to guarantee the container is really ready
+  await delay(12e3)
+}
+
+const after = async () => {
+  await libp2p.stop()
+
+  if (isCI) {
+    return
+  }
+
+  console.log('docker container is stopping')
+  execa.commandSync(`docker stop ${containerId}`)
+}
+
+module.exports = {
+  bundlesize: { maxSize: '250kB' },
+  hooks: {
+    pre: before,
+    post: after
+  },
+  webpack: {
+    node: {
+      // this is needed until bcrypto stops using node buffers in browser code
+      Buffer: true
+    }
+  }
+}

.dockerignore

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+*
+!src
+!README.md
+!package.json

.github/workflows/main.yml

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+name: ci
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - '**'
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - run: yarn
+    - run: yarn lint
+    - uses: gozala/typescript-error-reporter-action@v1.0.8
+    - run: yarn build
+    - run: yarn aegir dep-check
+    - uses: ipfs/aegir/actions/bundle-size@master
+      name: size
+      with:
+        github_token: ${{ secrets.GITHUB_TOKEN }}
+  test-node:
+    needs: check
+    runs-on: ${{ matrix.os }}
+    services:
+      mysql:
+        image: mysql:5.7
+        env:
+          MYSQL_ROOT_PASSWORD: test-secret-pw
+          MYSQL_DATABASE: libp2p_rendezvous_db
+        ports:
+        - 3306:3306
+        options: --health-cmd="mysqladmin ping" --health-interval=10s --health-timeout=5s --health-retries=3
+    strategy:
+      matrix:
+        os: [ubuntu-latest]
+        node: [12, 14]
+      fail-fast: true
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node }}
+      - run: yarn
+      - run: npx nyc --reporter=lcov aegir test -t node -- --bail
+      - uses: codecov/codecov-action@v1
+  test-chrome:
+    needs: check
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - run: yarn
+      - run: npx aegir test -t browser -t webworker --bail
+  test-firefox:
+    needs: check
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - run: yarn
+      - run: npx aegir test -t browser -t webworker --bail -- --browsers FirefoxHeadless

Dockerfile

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+FROM node:lts-alpine
+
+# Install deps
+RUN apk add --update git build-base python3
+
+# Get dumb-init to allow quit running interactively
+RUN wget -O /usr/local/bin/dumb-init https://github.com/Yelp/dumb-init/releases/download/v1.2.0/dumb-init_1.2.0_amd64 && chmod +x /usr/local/bin/dumb-init
+
+# Setup directories for the `node` user
+RUN mkdir -p /home/node/app/rendezvous/node_modules && chown -R node:node /home/node/app/rendezvous
+
+WORKDIR /home/node/app/rendezvous
+
+# Install node modules
+COPY package.json ./
+# Switch to the node user for installation
+USER node
+RUN npm install --production
+
+# Copy over source files under the node user
+COPY --chown=node:node ./src ./src
+COPY --chown=node:node ./README.md ./
+
+ENV DEBUG libp2p*
+
+# Available overrides (defaults shown):
+# Server logging can be enabled via the DEBUG environment variable
+CMD [ "/usr/local/bin/dumb-init", "node", "src/bin.js"]