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* add online * update NewDHT * update node
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,133 @@ | ||
| /* | ||
| Copyright (C) CESS. All rights reserved. | ||
| Copyright (C) Cumulus Encrypted Storage System. All rights reserved. | ||
| SPDX-License-Identifier: Apache-2.0 | ||
| */ | ||
|
|
||
| package core | ||
|
|
||
| import ( | ||
| "errors" | ||
| "io" | ||
| "sync" | ||
| "time" | ||
|
|
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| "github.com/CESSProject/p2p-go/pb" | ||
|
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| "github.com/google/uuid" | ||
| "github.com/libp2p/go-libp2p/core/network" | ||
| "github.com/libp2p/go-libp2p/core/peer" | ||
| "github.com/libp2p/go-libp2p/core/protocol" | ||
| "google.golang.org/protobuf/proto" | ||
| ) | ||
|
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| // pattern: /protocol-name/request-or-response-message/version | ||
| const OnlineRequest = "/online/req/v0" | ||
| const OnlineResponse = "/online/resp/v0" | ||
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| type onlineResp struct { | ||
| ch chan bool | ||
| *pb.MessageData | ||
| } | ||
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| type OnlineProtocol struct { // local host | ||
| *PeerNode | ||
| *sync.Mutex | ||
| requests map[string]*onlineResp // determine whether it is your own response | ||
| } | ||
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| func (n *PeerNode) NewOnlineProtocol() *OnlineProtocol { | ||
| e := OnlineProtocol{PeerNode: n, Mutex: new(sync.Mutex), requests: make(map[string]*onlineResp)} | ||
| n.SetStreamHandler(protocol.ID(n.protocolPrefix+OnlineResponse), e.onOnlineResponse) | ||
| return &e | ||
| } | ||
|
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| func (e *protocols) OnlineAction(id peer.ID) error { | ||
| var err error | ||
| var ok bool | ||
| // create message data | ||
| req := &pb.MessageData{ | ||
| Id: uuid.New().String(), | ||
| NodeId: e.OnlineProtocol.ID().String(), | ||
| } | ||
|
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| // store request so response handler has access to it | ||
| respChan := make(chan bool, 1) | ||
|
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| e.OnlineProtocol.Lock() | ||
| for { | ||
| if _, ok := e.OnlineProtocol.requests[req.Id]; ok { | ||
| req.Id = uuid.New().String() | ||
| continue | ||
| } | ||
| e.OnlineProtocol.requests[req.Id] = &onlineResp{ | ||
| ch: respChan, | ||
| MessageData: &pb.MessageData{ | ||
| Id: req.Id, | ||
| }, | ||
| } | ||
| break | ||
| } | ||
| e.OnlineProtocol.Unlock() | ||
|
|
||
| defer func() { | ||
| e.OnlineProtocol.Lock() | ||
| delete(e.OnlineProtocol.requests, req.Id) | ||
| close(respChan) | ||
| e.OnlineProtocol.Unlock() | ||
| }() | ||
|
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| timeout := time.NewTicker(P2PWriteReqRespTime) | ||
| defer timeout.Stop() | ||
|
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| err = e.OnlineProtocol.SendProtoMessage(id, protocol.ID(e.ProtocolPrefix+OnlineRequest), req) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| // wait response | ||
| timeout.Reset(P2PWriteReqRespTime) | ||
| select { | ||
| case ok = <-respChan: | ||
| if !ok { | ||
| return errors.New(ERR_RespFailure) | ||
| } | ||
| return nil | ||
| case <-timeout.C: | ||
| return errors.New(ERR_RespTimeOut) | ||
| } | ||
| } | ||
|
|
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| // remote peer response handler | ||
| func (e *OnlineProtocol) onOnlineResponse(s network.Stream) { | ||
| defer s.Close() | ||
|
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| data := &pb.MessageData{} | ||
| buf, err := io.ReadAll(s) | ||
| if err != nil { | ||
| s.Reset() | ||
| return | ||
| } | ||
|
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| // unmarshal it | ||
| err = proto.Unmarshal(buf, data) | ||
| if err != nil { | ||
| s.Reset() | ||
| return | ||
| } | ||
|
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| if data.NodeId == "" { | ||
| s.Reset() | ||
| return | ||
| } | ||
|
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| // locate request data and remove it if found | ||
| e.OnlineProtocol.Lock() | ||
| defer e.OnlineProtocol.Unlock() | ||
|
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| _, ok := e.requests[data.Id] | ||
| if ok { | ||
| e.requests[data.Id].ch <- true | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,58 @@ | ||
| /* | ||
| Copyright (C) CESS. All rights reserved. | ||
| Copyright (C) Cumulus Encrypted Storage System. All rights reserved. | ||
| SPDX-License-Identifier: Apache-2.0 | ||
| */ | ||
|
|
||
| package main | ||
|
|
||
| import ( | ||
| "context" | ||
| "flag" | ||
| "fmt" | ||
| "log" | ||
| "time" | ||
|
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| p2pgo "github.com/CESSProject/p2p-go" | ||
| "github.com/libp2p/go-libp2p/core/peer" | ||
| ma "github.com/multiformats/go-multiaddr" | ||
| ) | ||
|
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| func main() { | ||
| ctx := context.Background() | ||
| sourcePort1 := flag.Int("p1", 15000, "Source port number") | ||
| // To construct a simple host with all the default settings, just use `New` | ||
| h1, err := p2pgo.New( | ||
| ctx, | ||
| p2pgo.PrivatekeyFile(".private1"), | ||
| p2pgo.ListenPort(*sourcePort1), // regular tcp connections | ||
| p2pgo.Workspace("."), | ||
| p2pgo.BootPeers([]string{"_dnsaddr.boot-bucket-devnet.cess.cloud"}), | ||
| ) | ||
| if err != nil { | ||
| log.Println("[p2pgo.New]", err) | ||
| return | ||
| } | ||
| defer h1.Close() | ||
|
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| log.Println("node1:", h1.Addrs(), h1.ID()) | ||
|
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| remote := "/ip4/127.0.0.1/tcp/8001/p2p/12D3KooWGDk9JJ5F6UPNuutEKSbHrTXnF5eSn3zKaR27amgU6o9S" | ||
|
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| maddr, err := ma.NewMultiaddr(remote) | ||
| if err != nil { | ||
| log.Println("[ma.NewMultiaddr]", err) | ||
| return | ||
| } | ||
| // Extract the peer ID from the multiaddr. | ||
| info, err := peer.AddrInfoFromP2pAddr(maddr) | ||
| if err != nil { | ||
| log.Println("[peer.AddrInfoFromP2pAddr]", err) | ||
| return | ||
| } | ||
| h1.Peerstore().AddAddr(info.ID, maddr, time.Hour) | ||
|
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| err = h1.OnlineAction(info.ID) | ||
| fmt.Println(err) | ||
| } |