Merge branch 'port-2021-07-06'

.github/workflows/automerge.yml

+# File managed by web3-bot. DO NOT EDIT.
+# See https://github.com/protocol/.github/ for details.
+
+# Automatically merge pull requests opened by web3-bot, as soon as (and only if) all tests pass.
+# This reduces the friction associated with updating with our workflows.
+
+on: [ pull_request ]
+name: Automerge
+
+jobs:
+  automerge-check:
+    if: github.event.pull_request.user.login == 'web3-bot'
+    runs-on: ubuntu-latest
+    outputs:
+      status: ${{ steps.should-automerge.outputs.status }}
+    steps:
+    - uses: actions/checkout@v2
+      with:
+        fetch-depth: 0
+    - name: Check if we should automerge
+      id: should-automerge
+      run: |
+        for commit in $(git rev-list --first-parent origin/${{ github.event.pull_request.base.ref }}..${{ github.event.pull_request.head.sha }}); do
+          committer=$(git show --format=$'%ce' -s $commit)
+          echo "Committer: $committer"
+          if [[ "$committer" != "web3-bot@users.noreply.github.com" ]]; then
+            echo "Commit $commit wasn't committed by web3-bot, but by $committer."
+            echo "::set-output name=status::false"
+            exit
+          fi
+        done
+        echo "::set-output name=status::true"
+  automerge:
+    needs: automerge-check
+    runs-on: ubuntu-latest
+    if: ${{ needs.automerge-check.outputs.status == 'true' }}
+    steps:
+    - name: Wait on tests
+      uses: lewagon/wait-on-check-action@bafe56a6863672c681c3cf671f5e10b20abf2eaa # v0.2
+      with:
+        ref: ${{ github.event.pull_request.head.sha }}
+        repo-token: ${{ secrets.GITHUB_TOKEN }}
+        wait-interval: 10
+        running-workflow-name: 'automerge' # the name of this job
+    - name: Merge PR
+      uses: pascalgn/automerge-action@741c311a47881be9625932b0a0de1b0937aab1ae # v0.13.1
+      env:
+        GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
+        MERGE_LABELS: ""
+        MERGE_METHOD: "squash"
+        MERGE_DELETE_BRANCH: true

.github/workflows/go-check.yml

+# File managed by web3-bot. DO NOT EDIT.
+# See https://github.com/protocol/.github/ for details.
+
+on: [push, pull_request]
+name: Go Checks
+
+jobs:
+  unit:
+    runs-on: ubuntu-latest
+    name: All
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: recursive
+      - uses: actions/setup-go@v2
+        with:
+          go-version: "1.16.x"
+      - name: Install staticcheck
+        run: go install honnef.co/go/tools/cmd/staticcheck@434f5f3816b358fe468fa83dcba62d794e7fe04b # 2021.1 (v0.2.0)
+      - name: Check that go.mod is tidy
+        uses: protocol/multiple-go-modules@v1.0
+        with:
+          run: |
+            go mod tidy
+            if [[ -n $(git ls-files --other --exclude-standard --directory -- go.sum) ]]; then
+              echo "go.sum was added by go mod tidy"
+              exit 1
+            fi
+            git diff --exit-code -- go.sum go.mod
+      - name: gofmt
+        if: ${{ success() || failure() }} # run this step even if the previous one failed
+        run: |
+          out=$(gofmt -s -l .)
+          if [[ -n "$out" ]]; then
+            echo $out | awk '{print "::error file=" $0 ",line=0,col=0::File is not gofmt-ed."}'
+            exit 1
+          fi
+      - name: go vet
+        if: ${{ success() || failure() }} # run this step even if the previous one failed
+        uses: protocol/multiple-go-modules@v1.0
+        with:
+          run: go vet ./...
+      - name: staticcheck
+        if: ${{ success() || failure() }} # run this step even if the previous one failed
+        uses: protocol/multiple-go-modules@v1.0
+        with:
+          run: |
+            set -o pipefail
+            staticcheck ./... | sed -e 's@\(.*\)\.go@./\1.go@g'
+

.github/workflows/go-test.yml

+# File managed by web3-bot. DO NOT EDIT.
+# See https://github.com/protocol/.github/ for details.
+
+on: [push, pull_request]
+name: Go Test
+
+jobs:
+  unit:
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ "ubuntu", "windows", "macos" ]
+        go: [ "1.15.x", "1.16.x" ]
+    runs-on: ${{ matrix.os }}-latest
+    name: ${{ matrix.os}} (go ${{ matrix.go }})
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: recursive
+      - uses: actions/setup-go@v2
+        with:
+          go-version: ${{ matrix.go }}
+      - name: Go information
+        run: |
+          go version
+          go env
+      - name: Run tests
+        uses: protocol/multiple-go-modules@v1.0
+        with:
+          run: go test -v -coverprofile coverage.txt ./...
+      - name: Run tests (32 bit)
+        if: ${{ matrix.os != 'macos' }} # can't run 32 bit tests on OSX.
+        uses: protocol/multiple-go-modules@v1.0
+        env:
+          GOARCH: 386
+        with:
+          run: go test -v ./...
+      - name: Run tests with race detector
+        if: ${{ matrix.os == 'ubuntu' }} # speed things up. Windows and OSX VMs are slow
+        uses: protocol/multiple-go-modules@v1.0
+        with:
+          run: go test -v -race ./...
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@a1ed4b322b4b38cb846afb5a0ebfa17086917d27 # v1.5.0
+        with:
+          file: coverage.txt
+          env_vars: OS=${{ matrix.os }}, GO=${{ matrix.go }}

.gitlab-ci.yml

+stages:
+  - build
+  - test
+
+variables:
+  BUILD_DIR: "/tmp/$CI_CONCURRENT_PROJECT_ID"
+
+before_script:
+  - mkdir -p $BUILD_DIR/src
+  - cd $BUILD_DIR/src
+  - if [ -d $CI_PROJECT_DIR ]
+  - then
+  -    echo "soft link $CI_PROJECT_DIR exists"
+  - else
+  -    echo "creating soft link $CI_PROJECT_DIR"
+  -    ln -s $CI_PROJECT_DIR
+  - fi
+  - cd $CI_PROJECT_DIR
+
+build:
+  stage: build
+  tags:
+    - testing
+  script:
+    - echo $CI_JOB_STAGE
+    - go build
+
+test:
+  stage: test
+  tags:
+    - testing
+  script:
+    - echo $CI_JOB_STAGE
+    - go test -cover
+  coverage: '/coverage: \d+.\d+% of statements/'

LICENSE

+The MIT License (MIT)
+
+Copyright (c) 2016 Jeromy Johnson
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

README.md

-# go-p2p-blankhost
+go-libp2p-blankhost
+==================
 
-dms3 p2p go-p2p-blankhost
+[![](https://img.shields.io/badge/made%20by-Protocol%20Labs-blue.svg?style=flat-square)](http://protocol.ai)
\ No newline at end of file
+[![](https://img.shields.io/badge/project-libp2p-yellow.svg?style=flat-square)](http://libp2p.io/)
+[![](https://img.shields.io/badge/freenode-%23libp2p-yellow.svg?style=flat-square)](http://webchat.freenode.net/?channels=%23libp2p)
+[![Travis CI](https://travis-ci.org/libp2p/go-libp2p-blankhost.svg?branch=master)](https://travis-ci.org/libp2p/go-libp2p-blankhost)
+[![Discourse posts](https://img.shields.io/discourse/https/discuss.libp2p.io/posts.svg)](https://discuss.libp2p.io)
+
+
+> A very thin implementation of go-libp2p-host. Does not contain any identify, relay, or NAT traversal code.
+
+
+## Table of Contents
+
+- [Install](#install)
+- [Usage](#usage)
+- [API](#api)
+- [Contribute](#contribute)
+- [License](#license)
+
+## Install
+
+```sh
+make install
+```
+
+## Contribute
+
+PRs are welcome!
+
+Small note: If editing the Readme, please conform to the [standard-readme](https://github.com/RichardLitt/standard-readme) specification.
+
+## License
+
+MIT © Jeromy Johnson
+
+---
+
+The last gx published version of this module was: 0.3.26: QmcBTHN7uAMBdkzRoQ3n9cE7tGu8Ubd9zmahjskjTRw4Uf

blank.go

+package blankhost
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"io"
+
+	"gitlab.dms3.io/p2p/go-p2p-core/connmgr"
+	"gitlab.dms3.io/p2p/go-p2p-core/event"
+	"gitlab.dms3.io/p2p/go-p2p-core/host"
+	"gitlab.dms3.io/p2p/go-p2p-core/network"
+	"gitlab.dms3.io/p2p/go-p2p-core/peer"
+	"gitlab.dms3.io/p2p/go-p2p-core/peerstore"
+	"gitlab.dms3.io/p2p/go-p2p-core/protocol"
+	"gitlab.dms3.io/p2p/go-p2p-core/record"
+
+	"gitlab.dms3.io/p2p/go-eventbus"
+
+	logging "gitlab.dms3.io/dms3/public/go-log"
+
+	ma "github.com/multiformats/go-multiaddr"
+	mstream "github.com/multiformats/go-multistream"
+)
+
+var log = logging.Logger("blankhost")
+
+// BlankHost is the thinnest implementation of the host.Host interface
+type BlankHost struct {
+	n        network.Network
+	mux      *mstream.MultistreamMuxer
+	cmgr     connmgr.ConnManager
+	eventbus event.Bus
+	emitters struct {
+		evtLocalProtocolsUpdated event.Emitter
+	}
+}
+
+type config struct {
+	cmgr connmgr.ConnManager
+}
+
+type Option = func(cfg *config)
+
+func WithConnectionManager(cmgr connmgr.ConnManager) Option {
+	return func(cfg *config) {
+		cfg.cmgr = cmgr
+	}
+}
+
+func NewBlankHost(n network.Network, options ...Option) *BlankHost {
+	cfg := config{
+		cmgr: &connmgr.NullConnMgr{},
+	}
+	for _, opt := range options {
+		opt(&cfg)
+	}
+
+	bh := &BlankHost{
+		n:        n,
+		cmgr:     cfg.cmgr,
+		mux:      mstream.NewMultistreamMuxer(),
+		eventbus: eventbus.NewBus(),
+	}
+
+	// subscribe the connection manager to network notifications (has no effect with NullConnMgr)
+	n.Notify(bh.cmgr.Notifee())
+
+	var err error
+	if bh.emitters.evtLocalProtocolsUpdated, err = bh.eventbus.Emitter(&event.EvtLocalProtocolsUpdated{}); err != nil {
+		return nil
+	}
+
+	n.SetStreamHandler(bh.newStreamHandler)
+
+	// persist a signed peer record for self to the peerstore.
+	if err := bh.initSignedRecord(); err != nil {
+		log.Errorf("error creating blank host, err=%s", err)
+		return nil
+	}
+
+	return bh
+}
+
+func (bh *BlankHost) initSignedRecord() error {
+	cab, ok := peerstore.GetCertifiedAddrBook(bh.n.Peerstore())
+	if !ok {
+		log.Error("peerstore does not support signed records")
+		return errors.New("peerstore does not support signed records")
+	}
+	rec := peer.PeerRecordFromAddrInfo(peer.AddrInfo{ID: bh.ID(), Addrs: bh.Addrs()})
+	ev, err := record.Seal(rec, bh.Peerstore().PrivKey(bh.ID()))
+	if err != nil {
+		log.Errorf("failed to create signed record for self, err=%s", err)
+		return fmt.Errorf("failed to create signed record for self, err=%s", err)
+	}
+	_, err = cab.ConsumePeerRecord(ev, peerstore.PermanentAddrTTL)
+	if err != nil {
+		log.Errorf("failed to persist signed record to peerstore,err=%s", err)
+		return fmt.Errorf("failed to persist signed record for self, err=%s", err)
+	}
+	return err
+}
+
+var _ host.Host = (*BlankHost)(nil)
+
+func (bh *BlankHost) Addrs() []ma.Multiaddr {
+	addrs, err := bh.n.InterfaceListenAddresses()
+	if err != nil {
+		log.Debug("error retrieving network interface addrs: ", err)
+		return nil
+	}
+
+	return addrs
+}
+
+func (bh *BlankHost) Close() error {
+	return bh.n.Close()
+}
+
+func (bh *BlankHost) Connect(ctx context.Context, ai peer.AddrInfo) error {
+	// absorb addresses into peerstore
+	bh.Peerstore().AddAddrs(ai.ID, ai.Addrs, peerstore.TempAddrTTL)
+
+	cs := bh.n.ConnsToPeer(ai.ID)
+	if len(cs) > 0 {
+		return nil
+	}
+
+	_, err := bh.Network().DialPeer(ctx, ai.ID)
+	return err
+}
+
+func (bh *BlankHost) Peerstore() peerstore.Peerstore {
+	return bh.n.Peerstore()
+}
+
+func (bh *BlankHost) ID() peer.ID {
+	return bh.n.LocalPeer()
+}
+
+func (bh *BlankHost) NewStream(ctx context.Context, p peer.ID, protos ...protocol.ID) (network.Stream, error) {
+	s, err := bh.n.NewStream(ctx, p)
+	if err != nil {
+		return nil, err
+	}
+
+	var protoStrs []string
+	for _, pid := range protos {
+		protoStrs = append(protoStrs, string(pid))
+	}
+
+	selected, err := mstream.SelectOneOf(protoStrs, s)
+	if err != nil {
+		s.Reset()
+		return nil, err
+	}
+
+	selpid := protocol.ID(selected)
+	s.SetProtocol(selpid)
+	bh.Peerstore().AddProtocols(p, selected)
+
+	return s, nil
+}
+
+func (bh *BlankHost) RemoveStreamHandler(pid protocol.ID) {
+	bh.Mux().RemoveHandler(string(pid))
+	bh.emitters.evtLocalProtocolsUpdated.Emit(event.EvtLocalProtocolsUpdated{
+		Removed: []protocol.ID{pid},
+	})
+}
+
+func (bh *BlankHost) SetStreamHandler(pid protocol.ID, handler network.StreamHandler) {
+	bh.Mux().AddHandler(string(pid), func(p string, rwc io.ReadWriteCloser) error {
+		is := rwc.(network.Stream)
+		is.SetProtocol(protocol.ID(p))
+		handler(is)
+		return nil
+	})
+	bh.emitters.evtLocalProtocolsUpdated.Emit(event.EvtLocalProtocolsUpdated{
+		Added: []protocol.ID{pid},
+	})
+}
+
+func (bh *BlankHost) SetStreamHandlerMatch(pid protocol.ID, m func(string) bool, handler network.StreamHandler) {
+	bh.Mux().AddHandlerWithFunc(string(pid), m, func(p string, rwc io.ReadWriteCloser) error {
+		is := rwc.(network.Stream)
+		is.SetProtocol(protocol.ID(p))
+		handler(is)
+		return nil
+	})
+	bh.emitters.evtLocalProtocolsUpdated.Emit(event.EvtLocalProtocolsUpdated{
+		Added: []protocol.ID{pid},
+	})
+}
+
+// newStreamHandler is the remote-opened stream handler for network.Network
+func (bh *BlankHost) newStreamHandler(s network.Stream) {
+	protoID, handle, err := bh.Mux().Negotiate(s)
+	if err != nil {
+		log.Infow("protocol negotiation failed", "error", err)
+		s.Reset()
+		return
+	}
+
+	s.SetProtocol(protocol.ID(protoID))
+
+	go handle(protoID, s)
+}
+
+// TODO: i'm not sure this really needs to be here
+func (bh *BlankHost) Mux() protocol.Switch {
+	return bh.mux
+}
+
+// TODO: also not sure this fits... Might be better ways around this (leaky abstractions)
+func (bh *BlankHost) Network() network.Network {
+	return bh.n
+}
+
+func (bh *BlankHost) ConnManager() connmgr.ConnManager {
+	return bh.cmgr
+}
+
+func (bh *BlankHost) EventBus() event.Bus {
+	return bh.eventbus
+}

codecov.yml

+coverage:
+  range: "50...100"
+comment: off

go.mod

+module gitlab.dms3.io/p2p/go-p2p-blankhost
+
+go 1.15
+
+require (
+	github.com/multiformats/go-multiaddr v0.3.1
+	github.com/multiformats/go-multistream v0.1.1
+	gitlab.dms3.io/dms3/public/go-log v0.0.1
+	gitlab.dms3.io/p2p/go-eventbus v0.0.1
+	gitlab.dms3.io/p2p/go-p2p-core v0.0.1
+)

go.sum

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+github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/aead/siphash v1.0.1/go.mod h1:Nywa3cDsYNNK3gaciGTWPwHt0wlpNV15vwmswBAUSII=
+github.com/btcsuite/btcd v0.20.1-beta h1:Ik4hyJqN8Jfyv3S4AGBOmyouMsYE3EdYODkMbQjwPGw=
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