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dendrite/cmd/dendrite-demo-libp2p/mdnslistener.go
Hilmar Gústafsson 73d2f59e30
WIP: Add libp2p-go (#956)
* Add libp2p-go

* Some tweaks, tidying up

(cherry picked from commit 1a5bb121f8121c4f68a27abbf25a9a35a1b7c63e)

* Move p2p dockerfile

(cherry picked from commit 8d3bf44ea1bf37f950034e73bcdc315afdabe79a)

* Remove containsBackwardsExtremity

* Fix some linter errors, update some libp2p packages/calls, other tidying up

* Add -port for dendrite-p2p-demo

* Use instance name as key ID

* Remove P2P demo docker stuff, no longer needed now that we have SQLite

* Remove Dockerfile-p2p too

* Remove p2p logic from dendrite-monolith-server

* Inject publicRoomsDB in publicroomsapi

Inject publicRoomsDB instead of switching on base.libP2P.
See: https://github.com/matrix-org/dendrite/pull/956/files?file-filters%5B%5D=.go#r406276914

* Fix lint warning

* Extract mDNSListener from base.go

* Extract CreateFederationClient into demo

* Create P2PDendrite from BaseDendrite

Extract logic specific to P2PDendrite from base.go

* Set base.go to upstream/master

* Move pubsub to demo cmd

* Move PostgreswithDHT to cmd

* Remove unstable features

* Add copyrights

* Move libp2pvalidator into p2pdendrite

* Rename dendrite-p2p-demo -> dendrite-demo-libp2p

* Update copyrights

* go mod tidy

Co-authored-by: Neil Alexander <neilalexander@users.noreply.github.com>
2020-04-14 16:15:59 +01:00

64 lines
1.9 KiB
Go

// Copyright 2020 The Matrix.org Foundation C.I.C.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package main
import (
"context"
"fmt"
"math"
"github.com/libp2p/go-libp2p-core/host"
"github.com/libp2p/go-libp2p-core/peer"
"github.com/matrix-org/dendrite/common/keydb"
"github.com/matrix-org/gomatrixserverlib"
)
type mDNSListener struct {
keydb keydb.Database
host host.Host
}
func (n *mDNSListener) HandlePeerFound(p peer.AddrInfo) {
if err := n.host.Connect(context.Background(), p); err != nil {
fmt.Println("Error adding peer", p.ID.String(), "via mDNS:", err)
}
if pubkey, err := p.ID.ExtractPublicKey(); err == nil {
raw, _ := pubkey.Raw()
if err := n.keydb.StoreKeys(
context.Background(),
map[gomatrixserverlib.PublicKeyLookupRequest]gomatrixserverlib.PublicKeyLookupResult{
{
ServerName: gomatrixserverlib.ServerName(p.ID.String()),
KeyID: "ed25519:p2pdemo",
}: {
VerifyKey: gomatrixserverlib.VerifyKey{
Key: gomatrixserverlib.Base64String(raw),
},
ValidUntilTS: math.MaxUint64 >> 1,
ExpiredTS: gomatrixserverlib.PublicKeyNotExpired,
},
},
); err != nil {
fmt.Println("Failed to store keys:", err)
}
}
fmt.Println("Discovered", len(n.host.Peerstore().Peers())-1, "other libp2p peer(s):")
for _, peer := range n.host.Peerstore().Peers() {
if peer != n.host.ID() {
fmt.Println("-", peer)
}
}
}