private async Task ValidateAndSetDefaultsAsync()
{
//Check https://www.bricelam.net/2016/12/13/validation-in-efcore.html
var entities = from e in ChangeTracker.Entries()
where e.State == EntityState.Added ||
e.State == EntityState.Modified
select e.Entity;
string ipAddresses = String.Empty;
string assemblyFullName = String.Empty;
string rowCretionUser = String.Empty;
if (entities.Any(p => p is IOriginatorInfo))
{
ipAddresses = String.Join(",", await IpAddressProvider.GetCurrentHostIPv4AddressesAsync());
assemblyFullName = System.Reflection.Assembly.GetEntryAssembly().FullName;
rowCretionUser = this.CurrentUserProvider.GetUsername();
}
foreach (var entity in entities)
{
if (entity is IOriginatorInfo)
{
IOriginatorInfo entityWithOriginator = entity as IOriginatorInfo;
if (String.IsNullOrWhiteSpace(entityWithOriginator.SourceApplication))
{
entityWithOriginator.SourceApplication = assemblyFullName;
}
if (String.IsNullOrWhiteSpace(entityWithOriginator.OriginatorIpaddress))
{
entityWithOriginator.OriginatorIpaddress = ipAddresses;
}
if (entityWithOriginator.RowCreationDateTime == DateTimeOffset.MinValue)
{
entityWithOriginator.RowCreationDateTime = DateTimeOffset.UtcNow;
}
if (String.IsNullOrWhiteSpace(entityWithOriginator.RowCreationUser))
{
entityWithOriginator.RowCreationUser = rowCretionUser;
}
}
var validationContext = new ValidationContext(entity);
Validator.ValidateObject(
entity,
validationContext,
validateAllProperties: true);
}
}
public static void Main(string[] args)
{
var ipAddress = IpAddressProvider.GetLocalIpAddress();
var registrarService = new RegistrarService();
var server = new Server
{
Services = { Protocol.Registrar.BindService(registrarService) },
Ports = { new ServerPort(ipAddress, Port, ServerCredentials.Insecure) }
};
server.Start();
Console.WriteLine("Registrar listening on port " + Port);
Console.WriteLine("Press any key to stop the server...");
Console.ReadKey();
server.ShutdownAsync().Wait();
}
public async Task <VisitorTracking> TrackVisitAsync(VisitorTrackingModel visitorTrackingModel)
{
try
{
var httpContext = HttpContextAccessor.HttpContext;
var remoteIpAddress = httpContext.Connection.RemoteIpAddress.ToString();
if (remoteIpAddress == "::1")
{
var ipAddresses = await IpAddressProvider.GetCurrentHostIPv4AddressesAsync();
remoteIpAddress = ipAddresses.First();
}
var parsedIpAddress = System.Net.IPAddress.Parse(remoteIpAddress);
var ipGeoLocationInfo = await IpDataService.GetIpGeoLocationInfoAsync(ipAddress : parsedIpAddress);
//var ipGeoLocationInfo = await IpStackService.GetIpGeoLocationInfoAsync(ipAddress: parsedIpAddress);
string country = ipGeoLocationInfo.country_name;
var host = httpContext.Request.Host.Value;
var userAgent = httpContext.Request.Headers["User-Agent"].First();
ApplicationUser userEntity = null;
if (!String.IsNullOrWhiteSpace(visitorTrackingModel.UserAzureAdB2cObjectId))
{
userEntity = await this.FairplaytubeDatabaseContext.ApplicationUser.SingleOrDefaultAsync(p => p.AzureAdB2cobjectId.ToString() == visitorTrackingModel.UserAzureAdB2cObjectId);
}
var visitedPage = new DataAccess.Models.VisitorTracking()
{
ApplicationUserId = userEntity?.ApplicationUserId,
Country = country,
Host = host,
RemoteIpAddress = remoteIpAddress,
UserAgent = userAgent,
VisitDateTime = DateTimeOffset.UtcNow,
VisitedUrl = visitorTrackingModel.VisitedUrl,
SessionId = visitorTrackingModel.SessionId
};
await this.FairplaytubeDatabaseContext.VisitorTracking.AddAsync(visitedPage);
await this.FairplaytubeDatabaseContext.SaveChangesAsync();
var pageUri = new Uri(visitedPage.VisitedUrl);
var lastSegment = pageUri.Segments.Last().TrimEnd('/');
if (!String.IsNullOrWhiteSpace(lastSegment))
{
var videoInfoEntity = await this.FairplaytubeDatabaseContext.VideoInfo.SingleOrDefaultAsync(p => p.VideoId == lastSegment);
if (videoInfoEntity != null)
{
visitedPage.VideoInfoId = videoInfoEntity.VideoInfoId;
await this.FairplaytubeDatabaseContext.SaveChangesAsync();
}
}
return(visitedPage);
}
catch (Exception ex)
{
try
{
await this.FairplaytubeDatabaseContext.ErrorLog.AddAsync(new ErrorLog()
{
FullException = ex.ToString(),
Message = ex.Message,
StackTrace = ex.StackTrace
});
await this.FairplaytubeDatabaseContext.SaveChangesAsync();
}
catch (Exception)
{
throw;
}
}
return(null);
}
public static void Main(string[] args)
{
var configFilepath = args[0];
var password = args[1];
// config
var nodeConfig = ConfigDeserializer.Deserialize <NodeConfig>(configFilepath);
var console = ConsoleFactory.Build(nodeConfig.IsMiningNode);
var ipAddress = IpAddressProvider.GetLocalIpAddress();
var electionEndTime = nodeConfig.IsClassDemo ? DateTime.Now.AddSeconds(120) : nodeConfig.ElectionEndTime;
// password check
var voterDb = new VoterDatabaseFacade(nodeConfig.VoterDbFilepath);
var foundMiner = voterDb.TryGetVoterEncryptedKeyPair(password, out var encryptedKeyPair);
if (!foundMiner)
{
Console.WriteLine("incorrect password: you may not mine!");
return;
}
// blockchain
var blockchain = new Blockchain();
// networking
var registrarClientFactory = new RegistrarClientFactory();
var registrarClient = registrarClientFactory.Build(ipAddress, RegistrarPort);
var registrationRequestFactory = new RegistrationRequestFactory();
var myConnectionInfo = new NodeConnectionInfo(ipAddress, nodeConfig.Port);
var knownNodeStore = new KnownNodeStore();
var nodeClientFactory = new NodeClientFactory();
var handshakeRequestFactory = new HandshakeRequestFactory(blockchain);
var nodeClientStore = new NodeClientStore();
var nodeServerFactory = new NodeServerFactory();
// votes
var protoVoteFactory = new ProtoVoteFactory();
var voteForwarder = new VoteForwarder(nodeClientStore, protoVoteFactory);
var voteMemoryPool = new VoteMemoryPool(voteForwarder, console);
// blocks
var merkleNodeFactory = new MerkleNodeFactory();
var merkleTreeFactory = new MerkleTreeFactory(merkleNodeFactory);
var minerId = encryptedKeyPair.PublicKey.GetBase64String();
var blockFactory = new BlockFactory(merkleTreeFactory, minerId);
var protoBlockFactory = new ProtoBlockFactory(protoVoteFactory);
var blockForwarder = new BlockForwarder(nodeClientStore, protoBlockFactory);
var voteValidator = new VoteValidator(blockchain, voterDb, electionEndTime);
var blockValidator = new BlockValidator(blockFactory, voteValidator);
var blockchainAdder = new BlockchainAdder(blockchain, voteMemoryPool, blockForwarder, console);
// mining
var difficultyTarget = TargetFactory.Build(BlockHeader.DefaultBits);
var miner = new Miner(
blockchain,
voteMemoryPool,
difficultyTarget,
blockFactory,
blockchainAdder,
console);
// interaction
var voteSerializer = new VoteSerializer();
var electionAlgorithmFactory = new ElectionAlgorithmFactory(voteSerializer);
var electionAlgorithm = electionAlgorithmFactory.Build(nodeConfig.ElectionType);
var electionResultProvider = new ElectionResultProvider(
electionAlgorithm,
electionEndTime,
voteMemoryPool,
blockchain);
var voterTerminal = new VoterTerminal.VoterTerminal(
voterDb,
nodeConfig.Candidates.ToArray(),
voteSerializer,
voteMemoryPool,
electionResultProvider,
blockchain);
var votingBooth = new VoterTerminal.VoterBooth(voterTerminal, nodeConfig.ElectionType);
// startup
var nodeServer = nodeServerFactory.Build(
myConnectionInfo,
knownNodeStore,
nodeClientFactory,
nodeClientStore,
voteMemoryPool,
blockchain,
miner,
voteValidator,
blockValidator,
blockchainAdder,
console);
var boostrapper = new Bootstrapper(
MinNetworkSize,
knownNodeStore,
nodeClientFactory,
handshakeRequestFactory,
nodeClientStore,
registrarClient,
registrationRequestFactory,
nodeServer);
Console.WriteLine("bootstrapping node network...");
boostrapper.Bootstrap(myConnectionInfo);
Console.WriteLine($"{MinNetworkSize} nodes in network! bootstrapping complete");
if (nodeConfig.IsMiningNode)
{
Console.WriteLine("starting miner...");
miner.Start();
Console.WriteLine();
Console.WriteLine();
Console.WriteLine("Press any key to quit");
Console.ReadKey();
}
else
{
votingBooth.LaunchBooth();
}
}