public async Task <ActionResult> Upload([Bind(Include = ("Id,Title,IsPublic"))] Document document, HttpPostedFileBase file)
{
Document newDocument = new Document {
Id = document.Id, Title = document.Title, IsPublic = document.IsPublic, TimeStamp = DateTime.Now
};
string filepath = System.IO.Path.GetFullPath(file.FileName);
BinaryReader binary = new BinaryReader(file.InputStream);
MemoryStream mStream = new MemoryStream(binary.ReadBytes(file.ContentLength));
IpfsStream fileIpfs = new IpfsStream(filepath, mStream);
IpfsClient ipfs = new IpfsClient("https://ipfs.infura.io:5001");
MerkleNode node = await ipfs.Add(fileIpfs);
newDocument.Hash = node.Hash.ToString();
newDocument.UserId = User.Identity.GetUserId();
newDocument.UserName = db.Users.Where(u => u.Id == newDocument.UserId).FirstOrDefault().UserName;
newDocument.FileExtension = Path.GetExtension(filepath);
ContractReceipt receipt = await AddContractToEthereum(newDocument.Hash);
newDocument.ContractAddress = receipt.ContractAddress;
db.Documents.Add(newDocument);
db.SaveChanges();
return(RedirectToAction("Index", new { newDocument.UserName }));
}
public async Task <ContractReceipt> AddContractToEthereum(string hash)
{
var abi = @"[{""constant"":false,""inputs"":[],""name"":""getHash"",""outputs"":[{""name"":""x"",""type"":""string""}],""type"":""function""},{""constant"":false,""inputs"":[{""name"":""x"",""type"":""string""}],""name"":""sendHash"",""outputs"":[],""type"":""function""},{""inputs"":[],""type"":""constructor""}]";
var byte_code = "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";
var senderAddress = "0xf99E4906e40C02e79fefd7ad3A8b2BB764c71a17";
var wordlist = MyKeys.WORDLIST;
var account = new Wallet(wordlist, null).GetAccount(senderAddress);
var web3 = new Web3(account, "https://rinkeby.infura.io/v3/d08e99e349ad4e89baaae55f343694ab");
var receipt = await web3.Eth.DeployContract.SendRequestAndWaitForReceiptAsync(abi, byte_code, senderAddress, new Nethereum.Hex.HexTypes.HexBigInteger(900000), null);
ContractReceipt contractReceipt = new ContractReceipt()
{
DocumentHash = hash, ContractAddress = receipt.ContractAddress
};
db.ContractReceipts.Add(contractReceipt);
db.SaveChanges();
var contract = web3.Eth.GetContract(abi, contractReceipt.ContractAddress);
var sendHashFunction = contract.GetFunction("sendHash");
var gas = sendHashFunction.EstimateGasAsync(hash);
web3.TransactionManager.DefaultGas = new HexBigInteger(1000000);
var receiptFirstSend = await sendHashFunction.SendTransactionAndWaitForReceiptAsync(senderAddress, null, hash);
return(contractReceipt);
}
