public async Task <SDNetwork> NetworkDiscoveryAsync(TransactionContext ltransactionContext, bool force, CancellationToken token = default(CancellationToken))
{
using (await discoverLock.LockAsync(token).ConfigureAwait(false))
{
logger.Trace($"Network discovery force: {force}");
List <Peer> speers = serviceDiscoveryPeers.Shuffle().ToList();
SDNetwork ret = sdNetwork;
if (!force && null != ret && !ret.TimeElapsed)
{
return(ret);
}
ret = null;
foreach (Peer serviceDiscoveryPeer in speers)
{
try
{
SDNetwork lsdNetwork = new SDNetwork(SERVICE_DISCOVER_FREQ_SECONDS);
byte[] clientTLSCertificateDigest = serviceDiscoveryPeer.GetClientTLSCertificateDigest();
logger.Info($"Channel {channelName} doing discovery with peer: {serviceDiscoveryPeer}");
if (null == clientTLSCertificateDigest)
{
throw new ArgumentException($"Channel {channelName}, peer {serviceDiscoveryPeer} requires mutual tls for service discovery.");
}
ByteString clientIdent = ltransactionContext.Identity.ToByteString();
ByteString tlshash = ByteString.CopyFrom(clientTLSCertificateDigest);
AuthInfo authentication = new AuthInfo();
authentication.ClientIdentity = clientIdent;
authentication.ClientTlsCertHash = tlshash;
List <Query> fq = new List <Query>(2);
Query cq = new Query();
Query pq = new Query();
cq.Channel = channelName;
pq.Channel = channelName;
cq.ConfigQuery = new ConfigQuery();
pq.PeerQuery = new PeerMembershipQuery();
fq.Add(cq);
fq.Add(pq);
Request request = new Request();
request.Queries.AddRange(fq);
request.Authentication = authentication;
ByteString payloadBytes = request.ToByteString();
ByteString signatureBytes = ltransactionContext.SignByteStrings(payloadBytes);
SignedRequest sr = new SignedRequest();
sr.Payload = payloadBytes;
sr.Signature = signatureBytes;
if (IS_TRACE_LEVEL && null != diagnosticFileDumper) // dump protobuf we sent
{
logger.Trace($"Service discovery channel {channelName} {serviceDiscoveryPeer} service chaincode query sent {diagnosticFileDumper.CreateDiagnosticProtobufFile(sr.ToByteArray())}");
}
Response response = await serviceDiscoveryPeer.SendDiscoveryRequestAsync(sr, SERVICE_DISCOVERY_WAITTIME, token).ConfigureAwait(false);
if (IS_TRACE_LEVEL && null != diagnosticFileDumper) // dump protobuf we get
{
logger.Trace($"Service discovery channel {channelName} {serviceDiscoveryPeer} service discovery returned {diagnosticFileDumper.CreateDiagnosticProtobufFile(response.ToByteArray())}");
}
//serviceDiscoveryPeer.HasConnected; ???
List <QueryResult> resultsList = response.Results.ToList();
QueryResult queryResult = resultsList[0]; //configquery
if (queryResult.ResultCase == QueryResult.ResultOneofCase.Error)
{
logger.Warn($"Channel {channelName} peer: {serviceDiscoveryPeer} error during service discovery {queryResult.Error.Content}");
continue;
}
QueryResult queryResult2 = resultsList[1];
if (queryResult2.ResultCase == QueryResult.ResultOneofCase.Error)
{
logger.Warn($"Channel {channelName} peer: {serviceDiscoveryPeer} error during service discovery {queryResult2.Error.Content}");
continue;
}
ConfigResult configResult = queryResult.ConfigResult;
Dictionary <string, FabricMSPConfig> msps = configResult.Msps.ToDictionary(a => a.Key, a => a.Value);
HashSet <ByteString> cbbs = new HashSet <ByteString>();
foreach (string i in msps.Keys)
{
FabricMSPConfig value = msps[i];
string mspid = value.Name;
cbbs.AddRange(value.RootCerts);
cbbs.AddRange(value.IntermediateCerts);
value.RootCerts.ToList().ForEach(a => lsdNetwork.AddTlsCert(mspid, a.ToByteArray()));
value.TlsIntermediateCerts.ToList().ForEach(a => lsdNetwork.AddTlsIntermCert(mspid, a.ToByteArray()));
}
List <byte[]> toaddCerts = new List <byte[]>();
AddCerts(cbbs, toaddCerts);
if (toaddCerts.Count > 0) // add them to crypto store.
{
toaddCerts.ForEach(a => channel.Client.CryptoSuite.Store.AddCertificate(a.ToUTF8String()));
}
Dictionary <string, SDOrderer> ordererEndpoints = new Dictionary <string, SDOrderer>();
Dictionary <string, Endpoints> orderersMap = configResult.Orderers.ToDictionary(a => a.Key, a => a.Value);
foreach (string mspid in orderersMap.Keys)
{
Endpoints value = orderersMap[mspid];
foreach (Protos.Discovery.Endpoint l in value.Endpoint)
{
string endpoint = l.Host + ":" + l.Port.ToString().ToLowerInvariant().Trim();
logger.Trace($"Channel {channelName} discovered orderer MSPID: {mspid}, endpoint: {endpoint}");
SDOrderer sdOrderer = new SDOrderer(channel, mspid, endpoint, lsdNetwork.GetTlsCerts(mspid), lsdNetwork.GetTlsIntermediateCerts(mspid));
ordererEndpoints[sdOrderer.Endpoint] = sdOrderer;
}
}
lsdNetwork.SetOrdererEndpoints(ordererEndpoints);
PeerMembershipResult membership = queryResult2.Members;
Dictionary <string, SDEndorser> endorsers = new Dictionary <string, SDEndorser>();
foreach (string mspId in membership.PeersByOrg.Keys)
{
Peers peer = membership.PeersByOrg[mspId];
foreach (Protos.Discovery.Peer pp in peer.Peers_)
{
SDEndorser ppp = new SDEndorser(channel, pp, lsdNetwork.GetTlsCerts(mspId), lsdNetwork.GetTlsIntermediateCerts(mspId));
logger.Trace($"Channel {channelName} discovered peer MSPID: {mspId}, endpoint: {ppp.Endpoint}");
endorsers[ppp.Endpoint] = ppp;
}
}
lsdNetwork.SetEndorsers(endorsers);
lsdNetwork.End();
sdNetwork = lsdNetwork;
ret = lsdNetwork;
break;
}
catch (Exception e)
{
logger.Warn($"Channel {channelName} peer {serviceDiscoveryPeer} service discovery error {e.Message}");
}
}
logger.Debug($"Channel {channelName} service discovery completed: {ret != null}");
return(ret);
}
}
public MSP(string orgName, FabricMSPConfig fabricMSPConfig)
{
OrgName = orgName;
this.fabricMSPConfig = fabricMSPConfig;
}
