public Message(MessageArgs args)
{
this.header = args.header;
this.accountKeys = args.accountKeys.ToList().Select(account => new PublicKey(account)).ToArray();
this.recentBlockhash = args.recentBlockhash;
this.instructions = args.instructions;
}
// /**
// * Construct an empty Transaction
// */
// constructor(opts?: TransactionCtorFields)
// {
// opts && Object.assign(this, opts);
// }
// /**
// * Add one or more instructions to this Transaction
// */
// add(
// ...items: Array<
// Transaction | TransactionInstruction | TransactionInstructionCtorFields
// >
// ) : Transaction {
// if (items.length === 0) {
// throw new Error('No instructions');
// }
// items.forEach((item: any) => {
// if ('instructions' in item) {
// this.instructions = this.instructions.concat(item.instructions);
// } else if ('data' in item && 'programId' in item && 'keys' in item) {
// this.instructions.push(item);
// } else {
// this.instructions.push(new TransactionInstruction(item));
// }
// });
//return this;
// }
/// <summary>
/// Compile transaction data
/// </summary>
/// <returns></returns>
public Message compileMessage()
{
var nonceInfo = this.nonceInfo;
if (nonceInfo != null && this.instructions[0] != nonceInfo.nonceInstruction)
{
this.recentBlockhash = nonceInfo.nonce;
this.instructions.Insert(0, nonceInfo.nonceInstruction);
}
var recentBlockhash = this.recentBlockhash;
if (recentBlockhash.Length < 1)
{
throw new Exception("Transaction recentBlockhash required");
}
if (this.instructions.Count < 1)
{
throw new Exception("No instructions provided");
}
PublicKey feePayer;
if (this.feePayer != null)
{
feePayer = this.feePayer;
}
else if (signatures.Count > 0 && signatures[0].publicKey != null)
{
// Use implicit fee payer
feePayer = this.signatures[0].publicKey;
}
else
{
throw new Exception("Transaction fee payer required");
}
for (var i = 0; i < this.instructions.Count(); i++)
{
if (this.instructions[i].programId == null)
{
throw new Exception(string.Format("Transaction instruction index {0} has undefined program id", i));
}
}
List <string> programIds = new List <string>();
List <AccountMeta> accountMetas = new List <AccountMeta>();
this.instructions.ForEach(instruction => {
instruction.keys.ForEach(accountMeta =>
{
accountMetas.Add(accountMeta);
});
var programId = instruction.programId.ToString();
if (!programIds.Contains(programId))
{
programIds.Add(programId);
}
});
// Append programID account metas
programIds.ForEach(programId => {
accountMetas.Add(new AccountMeta()
{
pubkey = new PublicKey(programId),
isSigner = false,
isWritable = false,
});
});
// Sort. Prioritizing first by signer, then by writable
accountMetas.Sort((x, y) => {
var checkSigner = x.isSigner == y.isSigner ? 0 : x.isSigner ? -1 : 1;
var checkWritable = x.isWritable == y.isWritable ? 0 : x.isWritable ? -1 : 1;
return(Convert.ToBoolean(checkSigner) ? checkSigner : checkWritable);
});
// Cull duplicate account metas
List <AccountMeta> uniqueMetas = new List <AccountMeta>();
accountMetas.ForEach(accountMeta =>
{
var pubkeyString = accountMeta.pubkey.ToString();
var uniqueIndex = uniqueMetas.FindIndex(x =>
{
return(x.pubkey.ToString() == pubkeyString);
});
if (uniqueIndex > -1)
{
var meta = uniqueMetas[uniqueIndex];
meta.isWritable = meta.isWritable || accountMeta.isWritable;
uniqueMetas[uniqueIndex] = meta;
}
else
{
uniqueMetas.Add(accountMeta);
}
});
// Move fee payer to the front
var feePayerIndex = uniqueMetas.FindIndex(x =>
{
return(x.pubkey.Equals(feePayer));
});
if (feePayerIndex > -1)
{
var payerMeta = uniqueMetas[feePayerIndex];
payerMeta.isSigner = true;
payerMeta.isWritable = true;
uniqueMetas.Insert(0, payerMeta);
}
else
{
uniqueMetas.Insert(0, new AccountMeta()
{
pubkey = feePayer,
isSigner = true,
isWritable = true,
});
}
// Disallow unknown signers
foreach (var signature in this.signatures)
{
var uniqueIndex = uniqueMetas.FindIndex(x =>
{
return(x.pubkey.Equals(signature.publicKey));
});
if (uniqueIndex > -1)
{
if (!uniqueMetas[uniqueIndex].isSigner)
{
var meta = uniqueMetas[uniqueIndex];
meta.isSigner = true;
uniqueMetas[uniqueIndex] = meta;
//console.warn(
// 'Transaction references a signature that is unnecessary, ' +
// 'only the fee payer and instruction signer accounts should sign a transaction. ' +
// 'This behavior is deprecated and will throw an error in the next major version release.',
//);
}
}
else
{
throw new Exception(string.Format("unknown signer: {0}", signature.publicKey.ToString()));
}
}
var numRequiredSignatures = 0;
var numReadonlySignedAccounts = 0;
var numReadonlyUnsignedAccounts = 0;
// Split out signing from non-signing keys and count header values
List <string> signedKeys = new List <string>();
List <string> unsignedKeys = new List <string>();
uniqueMetas.ForEach(meta => {
if (meta.isSigner)
{
signedKeys.Add(meta.pubkey.ToString());
numRequiredSignatures += 1;
if (!meta.isWritable)
{
numReadonlySignedAccounts += 1;
}
}
else
{
unsignedKeys.Add(meta.pubkey.ToString());
if (!meta.isWritable)
{
numReadonlyUnsignedAccounts += 1;
}
}
});
signedKeys.AddRange(unsignedKeys);
var accountKeys = signedKeys;
var instructions = this.instructions.Select(
instruction =>
{
var data = instruction.data;
var programId = instruction.programId;
//const { data, programId} = instruction;
var cin = new CompiledInstruction();
cin.programIdIndex = accountKeys.IndexOf(programId.ToString());
cin.accounts = instruction.keys.Select(meta => accountKeys.IndexOf(meta.pubkey.ToString())).ToArray();
cin.data = Base58CheckEncoding.EncodePlain(data);
return(cin);
}).ToList();
instructions.ForEach(instruction =>
{
if (!(instruction.programIdIndex >= 0))
{
throw new Exception("instruction.programIdIndex error");
}
foreach (var keyIndex in instruction.accounts)
{
if (keyIndex < 0)
{
throw new Exception("instruction.accounts error");
}
}
});
var args = new MessageArgs()
{
header = new MessageHeader()
{
numRequiredSignatures = numRequiredSignatures,
numReadonlySignedAccounts = numReadonlySignedAccounts,
numReadonlyUnsignedAccounts = numReadonlyUnsignedAccounts
},
accountKeys = accountKeys.ToArray(),
recentBlockhash = recentBlockhash,
instructions = instructions.ToArray()
};
return(new Message(args));
}