|
|
|
@ -14,265 +14,157 @@ var TransactionOut = require('./transaction').TransactionOut; |
|
|
|
var SecureRandom = require('./jsbn/rng'); |
|
|
|
var rng = new SecureRandom(); |
|
|
|
|
|
|
|
var Wallet = function () { |
|
|
|
// Keychain
|
|
|
|
//
|
|
|
|
// The keychain is stored as a var in this closure to make accidental
|
|
|
|
// serialization less likely.
|
|
|
|
//
|
|
|
|
// Any functions accessing this value therefore have to be defined in
|
|
|
|
// the closure of this constructor.
|
|
|
|
var Wallet = function (seed) { |
|
|
|
|
|
|
|
// Stored in a closure to make accidental serialization less likely
|
|
|
|
var keys = []; |
|
|
|
var masterkey = null; |
|
|
|
var me = this; |
|
|
|
|
|
|
|
// Public hashes of our keys
|
|
|
|
this.addressHashes = []; |
|
|
|
|
|
|
|
// Transaction data
|
|
|
|
this.txIndex = {}; |
|
|
|
this.unspentOuts = []; |
|
|
|
// Addresses
|
|
|
|
this.addresses = []; |
|
|
|
|
|
|
|
// Other fields
|
|
|
|
this.addressPointer = 0; |
|
|
|
// Transaction output data
|
|
|
|
this.outputs = {}; |
|
|
|
|
|
|
|
this.genMasterkey = function(seed) { |
|
|
|
// Make a new master key
|
|
|
|
this.newMasterKey = function(seed) { |
|
|
|
if (!seed) { |
|
|
|
var seedBytes = new Array(32); |
|
|
|
rng.nextBytes(seedBytes); |
|
|
|
seed = conv.bytesToString(seedBytes) |
|
|
|
} |
|
|
|
masterkey = new BIP32key(seed); |
|
|
|
keys = [] |
|
|
|
} |
|
|
|
this.newMasterKey(seed) |
|
|
|
|
|
|
|
// Add a new address
|
|
|
|
this.generateAddress = function() { |
|
|
|
keys.push(masterkey.ckd(keys.length)) |
|
|
|
} |
|
|
|
|
|
|
|
/** |
|
|
|
* Get the key chain. |
|
|
|
* |
|
|
|
* Returns an array of hex-encoded private values. |
|
|
|
*/ |
|
|
|
this.getKeys = function () { |
|
|
|
var keyExport = []; |
|
|
|
|
|
|
|
for (var i = 0; i < keys.length; i++) { |
|
|
|
keyExport.push(keys[i].toString()); |
|
|
|
} |
|
|
|
|
|
|
|
return keyExport; |
|
|
|
}; |
|
|
|
|
|
|
|
this.privateSerialize = function() { |
|
|
|
return { |
|
|
|
masterkey: masterkey, |
|
|
|
keys: this.getKeys() |
|
|
|
} |
|
|
|
} |
|
|
|
|
|
|
|
/** |
|
|
|
* Get the public keys. |
|
|
|
* |
|
|
|
* Returns an array of hex-encoded public keys. |
|
|
|
*/ |
|
|
|
this.getPubKeys = function () { |
|
|
|
var pubs = []; |
|
|
|
|
|
|
|
for (var i = 0; i < keys.length; i++) { |
|
|
|
pubs.push(conv.bytesToHex(keys[i].getPub())); |
|
|
|
} |
|
|
|
|
|
|
|
return pubs; |
|
|
|
}; |
|
|
|
|
|
|
|
/** |
|
|
|
* Delete all keys. |
|
|
|
*/ |
|
|
|
this.clear = function () { |
|
|
|
keys = []; |
|
|
|
masterkey = null; |
|
|
|
}; |
|
|
|
|
|
|
|
/** |
|
|
|
* Return the number of keys in this wallet. |
|
|
|
*/ |
|
|
|
this.getLength = function () { |
|
|
|
return keys.length; |
|
|
|
}; |
|
|
|
|
|
|
|
/** |
|
|
|
* Get the addresses for this wallet. |
|
|
|
* |
|
|
|
* Returns an array of Address objects. |
|
|
|
*/ |
|
|
|
this.getAllAddresses = function () { |
|
|
|
var addresses = []; |
|
|
|
for (var i = 0; i < keys.length; i++) { |
|
|
|
addresses.push(keys[i].getBitcoinAddress()); |
|
|
|
} |
|
|
|
return addresses; |
|
|
|
}; |
|
|
|
|
|
|
|
this.getCurAddress = function () { |
|
|
|
if (keys[keys.length - 1]) { |
|
|
|
return keys[keys.length - 1].getBitcoinAddress(); |
|
|
|
} else { |
|
|
|
return null; |
|
|
|
} |
|
|
|
}; |
|
|
|
|
|
|
|
/** |
|
|
|
* Sign a hash with a key. |
|
|
|
* |
|
|
|
* This method expects the pubKeyHash as the first parameter and the hash |
|
|
|
* to be signed as the second parameter. |
|
|
|
*/ |
|
|
|
this.signWithKey = function (pubKeyHash, hash) { |
|
|
|
pubKeyHash = conv.bytesToHex(pubKeyHash); |
|
|
|
for (var i = 0; i < this.addressHashes.length; i++) { |
|
|
|
if (this.addressHashes[i] == pubKeyHash) { |
|
|
|
return keys[i].sign(hash); |
|
|
|
} |
|
|
|
} |
|
|
|
throw new Error("Missing key for signature"); |
|
|
|
}; |
|
|
|
|
|
|
|
/** |
|
|
|
* Retrieve the corresponding pubKey for a pubKeyHash. |
|
|
|
* |
|
|
|
* This function only works if the pubKey in question is part of this |
|
|
|
* wallet. |
|
|
|
*/ |
|
|
|
this.getPubKeyFromHash = function (pubKeyHash) { |
|
|
|
pubKeyHash = conv.bytesToHex(pubKeyHash); |
|
|
|
for (var i = 0; i < this.addressHashes.length; i++) { |
|
|
|
if (this.addressHashes[i] == pubKeyHash) { |
|
|
|
return keys[i].getPub(); |
|
|
|
} |
|
|
|
} |
|
|
|
throw new Error("Hash unknown"); |
|
|
|
}; |
|
|
|
}; |
|
|
|
|
|
|
|
// return unspent transactions
|
|
|
|
Wallet.prototype.unspentTx = function() { |
|
|
|
return this.unspentOuts; |
|
|
|
}; |
|
|
|
|
|
|
|
/** |
|
|
|
* Add a transaction to the wallet's processed transaction. |
|
|
|
* |
|
|
|
* This will add a transaction to the wallet, updating its balance and |
|
|
|
* available unspent outputs. |
|
|
|
*/ |
|
|
|
Wallet.prototype.process = function (tx) { |
|
|
|
if (this.txIndex[tx.hash]) return; |
|
|
|
|
|
|
|
var j; |
|
|
|
var k; |
|
|
|
var hash; |
|
|
|
// Gather outputs
|
|
|
|
for (j = 0; j < tx.out.length; j++) { |
|
|
|
var raw_tx = tx.out[j]; |
|
|
|
var txout = new TransactionOut(raw_tx); |
|
|
|
// this hash is the hash of the pubkey which is the address the output when to
|
|
|
|
hash = conv.bytesToHex(txout.script.simpleOutPubKeyHash()); |
|
|
|
for (k = 0; k < this.addressHashes.length; k++) { |
|
|
|
// if our address, then we add the unspent out to a list of unspent outputs
|
|
|
|
if (this.addressHashes[k] === hash) { |
|
|
|
this.unspentOuts.push({tx: tx, index: j, output: txout}); |
|
|
|
break; |
|
|
|
} |
|
|
|
} |
|
|
|
} |
|
|
|
|
|
|
|
// Remove spent outputs
|
|
|
|
for (j = 0; j < tx.in.length; j++) { |
|
|
|
var raw_tx = tx.in[j]; |
|
|
|
|
|
|
|
// mangle into the format TransactionIn expects
|
|
|
|
raw_tx.outpoint = { |
|
|
|
hash: raw_tx.prev_out.hash, |
|
|
|
index: raw_tx.prev_out.n |
|
|
|
}; |
|
|
|
|
|
|
|
var txin = new TransactionIn(raw_tx); |
|
|
|
var pubkey = txin.script.simpleInPubKey(); |
|
|
|
hash = conv.bytesToHex(util.sha256ripe160(pubkey)); |
|
|
|
for (k = 0; k < this.addressHashes.length; k++) { |
|
|
|
if (this.addressHashes[k] === hash) { |
|
|
|
for (var l = 0; l < this.unspentOuts.length; l++) { |
|
|
|
if (txin.outpoint.hash == this.unspentOuts[l].tx.hash && |
|
|
|
txin.outpoint.index == this.unspentOuts[l].index) { |
|
|
|
this.unspentOuts.splice(l, 1); |
|
|
|
} |
|
|
|
} |
|
|
|
break; |
|
|
|
} |
|
|
|
} |
|
|
|
} |
|
|
|
|
|
|
|
// Index transaction
|
|
|
|
this.txIndex[tx.hash] = tx; |
|
|
|
}; |
|
|
|
|
|
|
|
Wallet.prototype.getBalance = function () { |
|
|
|
return this.unspentOuts.reduce(function(t,o) { return t + o.output.value },0); |
|
|
|
}; |
|
|
|
|
|
|
|
Wallet.prototype.createSend = function (address, sendValue, feeValue) { |
|
|
|
var selectedOuts = []; |
|
|
|
var txValue = sendValue + feeValue; |
|
|
|
var availableValue = 0; |
|
|
|
var i; |
|
|
|
for (i = 0; i < this.unspentOuts.length; i++) { |
|
|
|
var txout = this.unspentOuts[i]; |
|
|
|
selectedOuts.push(txout); |
|
|
|
availableValue += txout.output.value; |
|
|
|
|
|
|
|
if (availableValue >= txValue) break; |
|
|
|
} |
|
|
|
|
|
|
|
if (availableValue < txValue) { |
|
|
|
throw new Error('Insufficient funds.'); |
|
|
|
} |
|
|
|
|
|
|
|
var changeValue = availableValue - txValue; |
|
|
|
|
|
|
|
var sendTx = new Transaction(); |
|
|
|
|
|
|
|
for (i = 0; i < selectedOuts.length; i++) { |
|
|
|
sendTx.addInput(selectedOuts[i].tx, selectedOuts[i].index); |
|
|
|
} |
|
|
|
|
|
|
|
sendTx.addOutput(address, sendValue); |
|
|
|
if (changeValue > 0) { |
|
|
|
sendTx.addOutput(this.getCurAddress(), changeValue); |
|
|
|
} |
|
|
|
|
|
|
|
var hashType = 1; // SIGHASH_ALL
|
|
|
|
|
|
|
|
sendTx.signWithKeys(this.getKeys(), selectedOuts, hashType) |
|
|
|
|
|
|
|
return sendTx; |
|
|
|
}; |
|
|
|
|
|
|
|
Wallet.prototype.clearTransactions = function () { |
|
|
|
this.txIndex = {}; |
|
|
|
this.unspentOuts = []; |
|
|
|
}; |
|
|
|
keys.push(masterkey.ckd(keys.length).key) |
|
|
|
this.addresses.push(keys[keys.length-1].getBitcoinAddress().toString()) |
|
|
|
return this.addresses[this.addresses.length - 1] |
|
|
|
} |
|
|
|
|
|
|
|
// Processes a transaction object
|
|
|
|
// If "verified" is true, then we trust the transaction as "final"
|
|
|
|
this.processTx = function(tx, verified) { |
|
|
|
var txhash = conv.bytesToHex(tx.getHash()) |
|
|
|
for (var i = 0; i < tx.outs.length; i++) { |
|
|
|
if (this.addresses.indexOf(tx.outs[i].address.toString()) >= 0) { |
|
|
|
me.outputs[txhash+':'+i] = { |
|
|
|
output: txhash+':'+i, |
|
|
|
value: tx.outs[i].value, |
|
|
|
address: tx.outs[i].address.toString(), |
|
|
|
timestamp: new Date().getTime() / 1000, |
|
|
|
pending: true |
|
|
|
} |
|
|
|
} |
|
|
|
} |
|
|
|
for (var i = 0; i < tx.ins.length; i++) { |
|
|
|
var op = tx.ins[i].outpoint |
|
|
|
var o = me.outputs[op.hash+':'+op.index] |
|
|
|
if (o) { |
|
|
|
o.spend = txhash+':'+i |
|
|
|
o.spendpending = true |
|
|
|
o.timestamp = new Date().getTime() / 1000 |
|
|
|
} |
|
|
|
} |
|
|
|
} |
|
|
|
// Processes an output from an external source of the form
|
|
|
|
// { output: txhash:index, value: integer, address: address }
|
|
|
|
// Excellent compatibility with SX and pybitcointools
|
|
|
|
this.processOutput = function(o) { |
|
|
|
if (!this.outputs[o.output] || this.outputs[o.output].pending) |
|
|
|
this.outputs[o.output] = o; |
|
|
|
} |
|
|
|
|
|
|
|
this.processExistingOutputs = function() { |
|
|
|
var t = new Date().getTime() / 1000 |
|
|
|
for (var o in this.outputs) { |
|
|
|
if (o.pending && t > o.timestamp + 1200) |
|
|
|
delete this.outputs[o] |
|
|
|
if (o.spendpending && t > o.timestamp + 1200) { |
|
|
|
o.spendpending = false |
|
|
|
o.spend = false |
|
|
|
delete o.timestamp |
|
|
|
} |
|
|
|
} |
|
|
|
} |
|
|
|
var peoInterval = setInterval(this.processExistingOutputs, 10000) |
|
|
|
|
|
|
|
this.getUtxoToPay = function(value) { |
|
|
|
var h = [] |
|
|
|
for (var out in this.outputs) h.push(this.outputs[out]) |
|
|
|
var utxo = h.filter(function(x) { return !x.spend }); |
|
|
|
var valuecompare = function(a,b) { return a.value > b.value; } |
|
|
|
var high = utxo.filter(function(o) { return o.value >= value; }) |
|
|
|
.sort(valuecompare); |
|
|
|
if (high.length > 0) return [high[0]]; |
|
|
|
utxo.sort(valuecompare); |
|
|
|
var totalval = 0; |
|
|
|
for (var i = 0; i < utxo.length; i++) { |
|
|
|
totalval += utxo[i].value; |
|
|
|
if (totalval >= value) return utxo.slice(0,i+1); |
|
|
|
} |
|
|
|
throw ("Not enough money to send funds including transaction fee. Have: " |
|
|
|
+ (totalval / 100000000) + ", needed: " + (value / 100000000)); |
|
|
|
} |
|
|
|
|
|
|
|
this.mkSend = function(to, value, fee) { |
|
|
|
var utxo = this.getUtxoToPay(value + fee) |
|
|
|
var sum = utxo.reduce(function(t,o) { return t + o.value },0), |
|
|
|
remainder = sum - value - fee |
|
|
|
if (value < 5430) throw new Error("Amount below dust threshold!") |
|
|
|
var unspentOuts = 0; |
|
|
|
for (var o in this.outputs) { |
|
|
|
if (!this.outputs[o].spend) unspentOuts += 1 |
|
|
|
if (unspentOuts >= 5) return |
|
|
|
} |
|
|
|
var change = this.addresses[this.addresses.length - 1] |
|
|
|
var toOut = { address: to, value: value }, |
|
|
|
changeOut = { address: change, value: remainder } |
|
|
|
halfChangeOut = { address: change, value: Math.floor(remainder/2) }; |
|
|
|
|
|
|
|
var outs = |
|
|
|
remainder < 5430 ? [toOut] |
|
|
|
: remainder < 10860 ? [toOut, changeOut] |
|
|
|
: unspentOuts == 5 ? [toOut, changeOut] |
|
|
|
: [toOut, halfChangeOut, halfChangeOut] |
|
|
|
|
|
|
|
var tx = new Bitcoin.Transaction({ |
|
|
|
ins: utxo.map(function(x) { return x.output }), |
|
|
|
outs: outs |
|
|
|
}) |
|
|
|
this.sign(tx) |
|
|
|
return tx |
|
|
|
} |
|
|
|
|
|
|
|
this.sign = function(tx) { |
|
|
|
tx.ins.map(function(inp,i) { |
|
|
|
var inp = inp.outpoint.hash+':'+inp.outpoint.index; |
|
|
|
if (me.outputs[inp]) { |
|
|
|
var address = me.outputs[inp].address, |
|
|
|
ind = me.addresses.indexOf(address); |
|
|
|
if (ind >= 0) { |
|
|
|
var key = keys[ind] |
|
|
|
tx.sign(ind,key) |
|
|
|
} |
|
|
|
} |
|
|
|
}) |
|
|
|
return tx; |
|
|
|
} |
|
|
|
|
|
|
|
/** |
|
|
|
* Check to see if a pubKeyHash belongs to this wallet. |
|
|
|
*/ |
|
|
|
Wallet.prototype.hasHash = function (hash) { |
|
|
|
if (util.isArray(hash)) hash = conv.bytesToHex(hash); |
|
|
|
this.getMasterKey = function() { return masterkey } |
|
|
|
|
|
|
|
// TODO: Just create an object with hashes as keys for faster lookup
|
|
|
|
for (var k = 0; k < this.addressHashes.length; k++) { |
|
|
|
if (this.addressHashes[k] === hash) return true; |
|
|
|
} |
|
|
|
return false; |
|
|
|
this.getPrivateKey = function(index) { |
|
|
|
if (typeof index == "string") |
|
|
|
return keys.filter(function(i,k){ return addresses[i] == index })[0] |
|
|
|
else |
|
|
|
return keys[index] |
|
|
|
} |
|
|
|
|
|
|
|
this.getPrivateKeys = function() { return keys } |
|
|
|
}; |
|
|
|
|
|
|
|
module.exports = Wallet; |
|
|
|
|
vub
11 years ago