public Task StartAsync(CancellationToken cancellationToken)
{
_logger.LogInformation("MainLoop Started");
var bootUrl = _configuration["boot"];
if (!String.IsNullOrWhiteSpace(bootUrl))
{
var myNode = _chainService.GetMyChainCredentials();
//Fill my node from configuration
myNode.Endpoint = _configuration["NodeIdentification:IPEndpoint"];
IEnumerable <NetworkNode> remoteNodes = _network.CallWelcomeNode(bootUrl, myNode).Result;
//Add remote credentials to my list
foreach (var node in remoteNodes)
{
_network.AddNode(node);
}
NetworkNode bootNode = new NetworkNode()
{
AccessKey = "",
Description = "",
Endpoint = bootUrl
};
//Get Chain
IEnumerable <DataBlock> chainBlocks = _network.CallGetNodesList(bootNode).Result;
//Replace my Chain Nodes
_chainService.BootstrapNodes(chainBlocks);
_logger.LogInformation($"Rebuilding local blockchain");
//Download Chain to local folder
foreach (var block in chainBlocks)
{
_logger.LogInformation($"Downloading DocsChain Desc {block.Description}");
_logger.LogInformation($"Downloading DocsChain Node {block.Index}");
//Download Data from the remote server
var bytesToStore = _network.CallGetDataBlockBytes(block.Index, bootNode).Result;
_logger.LogInformation($"{bytesToStore.Length / 1024} KBytes downloaded");
_chainService.StoreBlockBytesToDisk(block.Guid, bytesToStore);
}
//Validate The chain
_logger.LogInformation("Validating downloaded DocsChain...");
_chainService.CheckFullChainIntegrity();
}
var createtestchain = _configuration["create-test-chain"];
if (!String.IsNullOrWhiteSpace(createtestchain))
{
_chainService.AddTestDocuments(3);
}
return(Task.CompletedTask);
}
public async Task <bool> AddChainBlock([FromBody] DataBlock block)
{
_logger.LogInformation("Received new Data Block");
//pick another node for download
if (block.Index == 0)
{
throw new Exception("Block Index 0 is invalid");
}
var bytes = await _networkManager.GetDataBlockFromRandomNode(block.Index);
//Add Block to Chain
_chainService.StoreReceivedBlock(block, bytes);
//Verify Chain Integrity
_chainService.CheckFullChainIntegrity();
return(true);
}
public IActionResult BootFromUrl(string bootUrl)
{
bootUrl = $"http://{bootUrl}/";
if (!String.IsNullOrWhiteSpace(bootUrl))
{
var myNode = _chainService.GetMyChainCredentials();
//Fill my node from configuration
myNode.Endpoint = _configuration["NodeIdentification:IPEndpoint"];
IEnumerable <NetworkNode> remoteNodes = _networkManager.CallWelcomeNode(bootUrl, myNode).Result;
//Add remote credentials to my list
foreach (var node in remoteNodes)
{
_networkManager.AddNode(node);
}
NetworkNode bootNode = new NetworkNode()
{
AccessKey = "",
Description = "",
Endpoint = bootUrl
};
//Get Chain
IEnumerable <DataBlock> chainBlocks = _networkManager.CallGetNodesList(bootNode).Result;
//Replace my Chain Nodes
_chainService.BootstrapNodes(chainBlocks);
_logger.LogInformation($"Rebuilding local blockchain");
//Download Chain to local folder
foreach (var block in chainBlocks)
{
_logger.LogInformation($"Downloading DocsChain Desc {block.Description}");
_logger.LogInformation($"Downloading DocsChain Node {block.Index}");
//Download Data from the remote server
var bytesToStore = _networkManager.CallGetDataBlockBytes(block.Index, bootNode).Result;
_logger.LogInformation($"{bytesToStore.Length / 1024} KBytes downloaded");
_chainService.StoreBlockBytesToDisk(block.Guid, bytesToStore);
}
//Validate The chain
_logger.LogInformation("Validating downloaded DocsChain...");
_chainService.CheckFullChainIntegrity();
}
return(RedirectToAction("Index"));
}