72 lines
2.1 KiB
Go
72 lines
2.1 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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// +build wasm
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package main
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import (
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"context"
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"github.com/matrix-org/dendrite/federationsender/api"
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go_http_js_libp2p "github.com/matrix-org/go-http-js-libp2p"
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"github.com/matrix-org/gomatrixserverlib"
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)
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type libp2pPublicRoomsProvider struct {
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node *go_http_js_libp2p.P2pLocalNode
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providers []go_http_js_libp2p.PeerInfo
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fedSender api.FederationSenderInternalAPI
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}
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func NewLibP2PPublicRoomsProvider(node *go_http_js_libp2p.P2pLocalNode, fedSender api.FederationSenderInternalAPI) *libp2pPublicRoomsProvider {
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p := &libp2pPublicRoomsProvider{
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node: node,
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fedSender: fedSender,
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}
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node.RegisterFoundProviders(p.foundProviders)
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return p
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}
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func (p *libp2pPublicRoomsProvider) foundProviders(peerInfos []go_http_js_libp2p.PeerInfo) {
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// work out the diff then poke for new ones
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seen := make(map[string]bool, len(p.providers))
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for _, pr := range p.providers {
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seen[pr.Id] = true
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}
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var newPeers []gomatrixserverlib.ServerName
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for _, pi := range peerInfos {
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if !seen[pi.Id] {
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newPeers = append(newPeers, gomatrixserverlib.ServerName(pi.Id))
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}
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}
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if len(newPeers) > 0 {
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var res api.PerformServersAliveResponse
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// ignore errors, we don't care.
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p.fedSender.PerformServersAlive(context.Background(), &api.PerformServersAliveRequest{
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Servers: newPeers,
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}, &res)
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}
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p.providers = peerInfos
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}
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func (p *libp2pPublicRoomsProvider) Homeservers() []string {
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result := make([]string, len(p.providers))
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for i := range p.providers {
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result[i] = p.providers[i].Id
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}
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return result
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}
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