127 lines
3.5 KiB
Go
127 lines
3.5 KiB
Go
// Copyright 2020 The Matrix.org Foundation C.I.C.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package main
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import (
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"context"
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"fmt"
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"errors"
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pstore "github.com/libp2p/go-libp2p-core/peerstore"
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record "github.com/libp2p/go-libp2p-record"
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"github.com/matrix-org/dendrite/setup"
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"github.com/libp2p/go-libp2p"
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circuit "github.com/libp2p/go-libp2p-circuit"
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crypto "github.com/libp2p/go-libp2p-core/crypto"
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routing "github.com/libp2p/go-libp2p-core/routing"
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host "github.com/libp2p/go-libp2p-core/host"
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dht "github.com/libp2p/go-libp2p-kad-dht"
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pubsub "github.com/libp2p/go-libp2p-pubsub"
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"github.com/matrix-org/gomatrixserverlib"
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"github.com/matrix-org/dendrite/setup/config"
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)
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// P2PDendrite is a Peer-to-Peer variant of BaseDendrite.
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type P2PDendrite struct {
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Base setup.BaseDendrite
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// Store our libp2p object so that we can make outgoing connections from it
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// later
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LibP2P host.Host
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LibP2PContext context.Context
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LibP2PCancel context.CancelFunc
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LibP2PDHT *dht.IpfsDHT
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LibP2PPubsub *pubsub.PubSub
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}
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// NewP2PDendrite creates a new instance to be used by a component.
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// The componentName is used for logging purposes, and should be a friendly name
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// of the component running, e.g. SyncAPI.
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func NewP2PDendrite(cfg *config.Dendrite, componentName string) *P2PDendrite {
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baseDendrite := setup.NewBaseDendrite(cfg, componentName, false)
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ctx, cancel := context.WithCancel(context.Background())
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privKey, err := crypto.UnmarshalEd25519PrivateKey(cfg.Global.PrivateKey[:])
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if err != nil {
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panic(err)
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}
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//defaultIP6ListenAddr, _ := multiaddr.NewMultiaddr("/ip6/::/tcp/0")
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var libp2pdht *dht.IpfsDHT
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libp2p, err := libp2p.New(ctx,
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libp2p.Identity(privKey),
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libp2p.DefaultListenAddrs,
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//libp2p.ListenAddrs(defaultIP6ListenAddr),
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libp2p.DefaultTransports,
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libp2p.Routing(func(h host.Host) (r routing.PeerRouting, err error) {
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libp2pdht, err = dht.New(ctx, h)
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if err != nil {
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return nil, err
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}
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libp2pdht.Validator = libP2PValidator{}
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r = libp2pdht
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return
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}),
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libp2p.EnableAutoRelay(),
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libp2p.EnableRelay(circuit.OptHop),
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)
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if err != nil {
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panic(err)
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}
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libp2ppubsub, err := pubsub.NewFloodSub(context.Background(), libp2p, []pubsub.Option{
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pubsub.WithMessageSigning(true),
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}...)
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if err != nil {
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panic(err)
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}
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fmt.Println("Our public key:", privKey.GetPublic())
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fmt.Println("Our node ID:", libp2p.ID())
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fmt.Println("Our addresses:", libp2p.Addrs())
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cfg.Global.ServerName = gomatrixserverlib.ServerName(libp2p.ID().String())
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return &P2PDendrite{
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Base: *baseDendrite,
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LibP2P: libp2p,
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LibP2PContext: ctx,
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LibP2PCancel: cancel,
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LibP2PDHT: libp2pdht,
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LibP2PPubsub: libp2ppubsub,
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}
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}
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type libP2PValidator struct {
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KeyBook pstore.KeyBook
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}
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func (v libP2PValidator) Validate(key string, value []byte) error {
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ns, _, err := record.SplitKey(key)
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if err != nil || ns != "matrix" {
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return errors.New("not Matrix path")
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}
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return nil
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}
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func (v libP2PValidator) Select(k string, vals [][]byte) (int, error) {
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return 0, nil
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}
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