public async void ShouldResolveNameFromMainnet()
{
var web3 = new Web3.Web3("https://mainnet.infura.io");
var fullNameNode = new EnsUtil().GetNameHash("nickjohnson.eth");
var ensRegistryService = new ENSRegistryService(web3, "0x314159265dd8dbb310642f98f50c066173c1259b");
//get the resolver address from ENS
var resolverAddress = await ensRegistryService.ResolverQueryAsync(
new ResolverFunction()
{
Node = fullNameNode.HexToByteArray()
});
Assert.Equal("0x1da022710df5002339274aadee8d58218e9d6ab5", resolverAddress);
//using the resolver address we can create our service (should be an abstract / interface based on abi as we can have many)
var resolverService = new PublicResolverService(web3, resolverAddress);
//and get the address from the resolver
var theAddress =
await resolverService.AddrQueryAsync(new AddrFunction()
{
Node = fullNameNode.HexToByteArray()
});
//Owner address
var expectedAddress = "0xfdb33f8ac7ce72d7d4795dd8610e323b4c122fbb";
Assert.Equal(expectedAddress.ToLower(), theAddress.ToLower());
}
public async Task <string> GetAddress(string accountDomain)
{
if (!IsValidDomain(accountDomain))
{
throw new ArgumentException("Invalid name.", nameof(accountDomain));
}
try
{
var ensRegistryService = new ENSRegistryService(Web3Client, RnsRegistry);
var fullNameNode = new EnsUtil().GetNameHash(accountDomain);
var resolverAddress = await ensRegistryService.ResolverQueryAsync(
new ResolverFunction()
{
Node = fullNameNode.HexToByteArray()
}).ConfigureAwait(false);
var resolverService = new PublicResolverService(Web3Client, resolverAddress);
var theAddress = await resolverService
.AddrQueryAsync(fullNameNode.HexToByteArray())
.ConfigureAwait(false);
return(theAddress);
}
catch (Exception e)
{
return(null);
}
}
public static async Task <IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Anonymous, "get", Route = "v0.1/publickeys/lookup")] HttpRequest req,
[Table("%PublicKey:Storage:PublicKeyTable%", Connection = "PublicKey:Storage:Connection")] CloudTable table,
ILogger log,
ExecutionContext context)
{
IConfigurationRoot config = new ConfigurationBuilder()
.SetBasePath(context.FunctionAppDirectory)
.AddJsonFile("local.settings.json", optional: true, reloadOnChange: true)
.AddEnvironmentVariables()
.Build();
var queryParam = (string)req.Query["q"];
var model = new PublicKeyLookupModel();
if (!string.IsNullOrEmpty(queryParam) &&
!AddressUtil.Current.IsValidEthereumAddressHexFormat(queryParam))
{
var web3 = new Web3(config.GetValue <string>("Blockchain:Endpoint"));
var nameHash = new EnsUtil().GetNameHash(queryParam);
var ensRegistryService = new ENSRegistryService(web3, config.GetValue <string>("Blockchain:ENSRegistryService"));
var resolverAddress = await ensRegistryService.ResolverQueryAsync(
new ResolverFunction()
{
Node = nameHash.HexToByteArray()
});
var resolverService = new PublicResolverService(web3, resolverAddress);
var address = await resolverService.AddrQueryAsync(nameHash.HexToByteArray());
model.Ens = new EnsModel
{
Name = queryParam,
Hash = nameHash,
Resolver = resolverAddress
};
model.Address = address;
queryParam = address;
}
if (AddressUtil.Current.IsValidEthereumAddressHexFormat(queryParam))
{
var entity = await FindPublicKey(table, queryParam);
if (entity != null)
{
model.Address = entity.PartitionKey;
model.PublicKey = entity.RowKey;
}
}
return(string.IsNullOrEmpty(model.Address) && model.Ens == null ?
new NotFoundObjectResult("Public key not found") :
(IActionResult) new OkObjectResult(model));
}