Wallet: refactor to use Array unspents solely, deprecating unspentsMap

This commit is contained in:
Daniel Cousens 2014-08-18 15:23:13 +10:00
parent 06f13db8d7
commit b727a65ea0
2 changed files with 197 additions and 126 deletions

View file

@ -24,9 +24,12 @@ function Wallet(seed, network) {
this.addresses = []
this.changeAddresses = []
this.network = network
this.unspents = []
// FIXME: remove in 2.0.0
this.unspentMap = {}
// FIXME: remove in 2.x.y
// FIXME: remove in 2.0.0
var me = this
this.newMasterKey = function(seed) {
console.warn('newMasterKey is deprecated, please make a new Wallet instance instead')
@ -41,6 +44,7 @@ function Wallet(seed, network) {
me.addresses = []
me.changeAddresses = []
me.unspents = []
me.unspentMap = {}
}
@ -50,27 +54,54 @@ function Wallet(seed, network) {
this.getInternalAccount = function() { return internalAccount }
}
Wallet.prototype.createTx = function(to, value, fixedFee, changeAddress) {
Wallet.prototype.createTransaction = function(to, value, options) {
// FIXME: remove in 2.0.0
if (typeof options !== 'object') {
if (options !== undefined) {
console.warn('Non options object parameters are deprecated, use options object instead')
options = {
fixedFee: arguments[2],
changeAddress: arguments[3]
}
}
}
options = options || {}
assert(value > this.network.dustThreshold, value + ' must be above dust threshold (' + this.network.dustThreshold + ' Satoshis)')
var utxos = getCandidateOutputs(this.unspentMap, value)
var changeAddress = options.changeAddress
var fixedFee = options.fixedFee
var minConf = options.minConf === undefined ? 0 : options.minConf // FIXME: change minConf:1 by default in 2.0.0
// filter by minConf, then pending and sort by descending value
var unspents = this.unspents.filter(function(unspent) {
return unspent.confirmations >= minConf
}).filter(function(unspent) {
return !unspent.pending
}).sort(function(o1, o2) {
return o2.value - o1.value
})
var accum = 0
var subTotal = value
var addresses = []
var subTotal = value
var txb = new TransactionBuilder()
txb.addOutput(to, value)
for (var i = 0; i < utxos.length; ++i) {
var utxo = utxos[i]
addresses.push(utxo.address)
for (var i = 0; i < unspents.length; ++i) {
var unspent = unspents[i]
addresses.push(unspent.address)
txb.addInput(utxo.hash, utxo.index)
txb.addInput(unspent.txHash, unspent.index)
var fee = fixedFee === undefined ? estimatePaddedFee(txb.buildIncomplete(), this.network) : fixedFee
accum += utxo.value
accum += unspent.value
subTotal = value + fee
if (accum >= subTotal) {
var change = accum - subTotal
@ -87,15 +118,20 @@ Wallet.prototype.createTx = function(to, value, fixedFee, changeAddress) {
return this.signWith(txb, addresses).build()
}
// FIXME: remove in 2.0.0
Wallet.prototype.processPendingTx = function(tx){
this.__processTx(tx, true)
}
// FIXME: remove in 2.0.0
Wallet.prototype.processConfirmedTx = function(tx){
this.__processTx(tx, false)
}
// FIXME: remove in 2.0.0
Wallet.prototype.__processTx = function(tx, isPending) {
console.warn('processTransaction is considered harmful, see issue #260 for more information')
var txId = tx.getId()
var txHash = tx.getHash()
@ -110,31 +146,44 @@ Wallet.prototype.__processTx = function(tx, isPending) {
var myAddresses = this.addresses.concat(this.changeAddresses)
if (myAddresses.indexOf(address) > -1) {
var output = txId + ':' + i
var lookup = txId + ':' + i
if (lookup in this.unspentMap) return
this.unspentMap[output] = {
hash: txHash,
index: i,
value: txOut.value,
// its unique, add it
var unspent = {
address: address,
confirmations: 0, // no way to determine this without more information
index: i,
txHash: txHash,
txId: txId,
value: txOut.value,
pending: isPending
}
this.unspentMap[lookup] = unspent
this.unspents.push(unspent)
}
}, this)
tx.ins.forEach(function(txIn, i) {
// copy and convert to big-endian hex
var txinId = bufferutils.reverse(txIn.hash).toString('hex')
var output = txinId + ':' + txIn.index
var txInId = bufferutils.reverse(txIn.hash).toString('hex')
if (!(output in this.unspentMap)) return
var lookup = txInId + ':' + txIn.index
if (!(lookup in this.unspentMap)) return
var unspent = this.unspentMap[lookup]
if (isPending) {
this.unspentMap[output].pending = true
this.unspentMap[output].spent = true
unspent.pending = true
unspent.spent = true
} else {
delete this.unspentMap[output]
delete this.unspentMap[lookup]
this.unspents = this.unspents.filter(function(unspent2) {
return unspent !== unspent2
})
}
}, this)
}
@ -157,9 +206,25 @@ Wallet.prototype.generateChangeAddress = function() {
return this.getChangeAddress()
}
Wallet.prototype.getBalance = function() {
return this.getUnspentOutputs().reduce(function(accum, output) {
return accum + output.value
Wallet.prototype.getAddress = function() {
if (this.addresses.length === 0) {
this.generateAddress()
}
return this.addresses[this.addresses.length - 1]
}
Wallet.prototype.getBalance = function(minConf) {
minConf = minConf || 0
return this.unspents.filter(function(unspent) {
return unspent.confirmations >= minConf
// FIXME: remove spent filter in 2.0.0
}).filter(function(unspent) {
return !unspent.spent
}).reduce(function(accum, unspent) {
return accum + unspent.value
}, 0)
}
@ -193,65 +258,77 @@ Wallet.prototype.getPrivateKeyForAddress = function(address) {
assert(false, 'Unknown address. Make sure the address is from the keychain and has been generated')
}
Wallet.prototype.getReceiveAddress = function() {
if (this.addresses.length === 0) {
this.generateAddress()
Wallet.prototype.getUnspentOutputs = function(minConf) {
minConf = minConf || 0
return this.unspents.filter(function(unspent) {
return unspent.confirmations >= minConf
// FIXME: remove spent filter in 2.0.0
}).filter(function(unspent) {
return !unspent.spent
}).map(function(unspent) {
return {
address: unspent.address,
confirmations: unspent.confirmations,
index: unspent.index,
txId: unspent.txId,
value: unspent.value,
// FIXME: remove in 2.0.0
hash: unspent.txId,
pending: unspent.pending
}
return this.addresses[this.addresses.length - 1]
}
Wallet.prototype.getUnspentOutputs = function() {
var utxos = []
for (var key in this.unspentMap) {
var output = this.unspentMap[key]
// Don't include pending spent outputs
if (!output.spent) {
// hash is little-endian, we want big-endian
var txId = bufferutils.reverse(output.hash)
utxos.push({
hash: txId.toString('hex'),
index: output.index,
address: output.address,
value: output.value,
pending: output.pending
})
}
Wallet.prototype.setUnspentOutputs = function(unspents) {
this.unspentMap = {}
this.unspents = unspents.map(function(unspent) {
// FIXME: remove unspent.hash in 2.0.0
var txId = unspent.txId || unspent.hash
var index = unspent.index
// FIXME: remove in 2.0.0
if (unspent.hash !== undefined) {
console.warn('unspent.hash is deprecated, use unspent.txId instead')
}
return utxos
// FIXME: remove in 2.0.0
if (index === undefined) {
console.warn('unspent.outputIndex is deprecated, use unspent.index instead')
index = utxo.outputIndex
}
Wallet.prototype.setUnspentOutputs = function(utxos) {
utxos.forEach(function(utxo) {
var txId = utxo.hash
assert.equal(typeof txId, 'string', 'Expected txId, got ' + txId)
var hash = bufferutils.reverse(new Buffer(txId, 'hex'))
var index = utxo.index
var address = utxo.address
var value = utxo.value
// FIXME: remove alternative in 2.x.y
if (index === undefined) index = utxo.outputIndex
assert.equal(hash.length, 32, 'Expected hash length of 32, got ' + hash.length)
assert.equal(txId.length, 64, 'Expected valid txId, got ' + txId)
assert.doesNotThrow(function() { Address.fromBase58Check(unspent.address) }, 'Expected Base58 Address, got ' + unspent.address)
assert.equal(typeof index, 'number', 'Expected number index, got ' + index)
assert.doesNotThrow(function() { Address.fromBase58Check(address) }, 'Expected Base58 Address, got ' + address)
assert.equal(typeof value, 'number', 'Expected number value, got ' + value)
assert.equal(typeof unspent.value, 'number', 'Expected number value, got ' + unspent.value)
var output = txId + ':' + index
this.unspentMap[output] = {
address: address,
hash: hash,
index: index,
pending: utxo.pending,
value: value
// FIXME: remove branch in 2.0.0
if (unspent.confirmations !== undefined) {
assert.equal(typeof unspent.confirmations, 'number', 'Expected number confirmations, got ' + unspent.confirmations)
}
var txHash = bufferutils.reverse(new Buffer(txId, 'hex'))
var unspent = {
address: unspent.address,
confirmations: unspent.confirmations || 0,
index: index,
txHash: txHash,
txId: txId,
value: unspent.value,
// FIXME: remove in 2.0.0
pending: unspent.pending || false
}
// FIXME: remove in 2.0.0
this.unspentMap[txId + ':' + index] = unspent
return unspent
}, this)
}
@ -272,21 +349,8 @@ function estimatePaddedFee(tx, network) {
return network.estimateFee(tmpTx)
}
function getCandidateOutputs(outputs/*, value*/) {
var unspents = []
for (var key in outputs) {
var output = outputs[key]
if (!output.pending) {
unspents.push(output)
}
}
// sorted by descending value
return unspents.sort(function(o1, o2) {
return o2.value - o1.value
})
}
// FIXME: 1.0.0 shims, remove in 2.0.0
Wallet.prototype.getReceiveAddress = Wallet.prototype.getAddress
Wallet.prototype.createTx = Wallet.prototype.createTransaction
module.exports = Wallet

View file

@ -1,4 +1,5 @@
var assert = require('assert')
var bufferutils = require('../src/bufferutils')
var crypto = require('../src/crypto')
var networks = require('../src/networks')
var sinon = require('sinon')
@ -201,13 +202,12 @@ describe('Wallet', function() {
beforeEach(function() {
utxo = {
"address" : "1AZpKpcfCzKDUeTFBQUL4MokQai3m3HMXv",
"hash": fakeTxId(6),
"confirmations": 1,
"index": 0,
"pending": true,
"value": 20000
"txId": fakeTxId(6),
"value": 20000,
"pending": false
}
expectedOutputKey = utxo.hash + ":" + utxo.index
})
describe('on construction', function() {
@ -217,11 +217,10 @@ describe('Wallet', function() {
})
it('matches the expected behaviour', function() {
var output = wallet.unspentMap[expectedOutputKey]
var output = wallet.unspents[0]
assert(output)
assert.equal(output.value, utxo.value)
assert.equal(output.address, utxo.address)
assert.equal(output.value, utxo.value)
})
})
@ -245,20 +244,32 @@ describe('Wallet', function() {
wallet.setUnspentOutputs([utxo])
})
it('parses wallet outputs to the expected format', function() {
assert.deepEqual(wallet.getUnspentOutputs(), [utxo])
it('parses wallet unspents to the expected format', function() {
var outputs = wallet.getUnspentOutputs()
var output = outputs[0]
assert.equal(utxo.address, output.address)
assert.equal(utxo.index, output.index)
assert.equal(utxo.value, output.value)
// FIXME: remove in 2.0.0
assert.equal(utxo.txId, output.hash)
assert.equal(utxo.pending, output.pending)
// new in 2.0.0
assert.equal(utxo.txId, output.txId)
assert.equal(utxo.confirmations, output.confirmations)
})
it("ignores pending spending outputs (outputs with 'spent' property)", function() {
var output = wallet.unspentMap[expectedOutputKey]
output.pending = true
output.spent = true
it("ignores spent unspents (outputs with 'spent' property)", function() {
var unspent = wallet.unspents[0]
unspent.pending = true
unspent.spent = true
assert.deepEqual(wallet.getUnspentOutputs(), [])
})
})
})
// FIXME: remove in 2.x.y
describe('setUnspentOutputs', function() {
var utxo
var expectedOutputKey
@ -271,16 +282,13 @@ describe('Wallet', function() {
value: 500000
}
expectedOutputKey = utxo.hash + ":" + utxo.index
wallet = new Wallet(seed, networks.bitcoin)
})
it('matches the expected behaviour', function() {
wallet.setUnspentOutputs([utxo])
var output = wallet.unspentMap[expectedOutputKey]
assert(output)
var output = wallet.unspents[0]
assert.equal(output.value, utxo.value)
assert.equal(output.address, utxo.address)
})
@ -340,13 +348,12 @@ describe('Wallet', function() {
Array.prototype.reverse.call(txInId)
txInId = txInId.toString('hex')
var key = txInId + ':' + txIn.index
var output = wallet.unspentMap[key]
var unspent = wallet.unspents[0]
assert(!unspent.pending)
assert(!output.pending)
wallet.processPendingTx(spendTx)
assert(output.pending)
assert(output.spent, true)
assert(unspent.pending)
assert(unspent.spent, true)
})
})
})
@ -389,7 +396,7 @@ describe('Wallet', function() {
}
})
describe("when tx ins outpoint contains a known txhash:i", function() {
describe("when tx ins contains a known txhash:i", function() {
var spendTx
beforeEach(function() {
wallet.addresses = [addresses[0]] // the address fixtureTx2 used as input
@ -403,11 +410,9 @@ describe('Wallet', function() {
assert.deepEqual(wallet.unspentMap, {})
})
it("deletes corresponding 'output'", function() {
it("deletes corresponding 'unspent'", function() {
var txIn = spendTx.ins[0]
var txInId = new Buffer(txIn.hash)
Array.prototype.reverse.call(txInId)
txInId = txInId.toString('hex')
var txInId = bufferutils.reverse(txIn.hash).toString('hex')
var expected = txInId + ':' + txIn.index
assert(expected in wallet.unspentMap)
@ -416,19 +421,20 @@ describe('Wallet', function() {
assert(!(expected in wallet.unspentMap))
})
})
})
it("does nothing when none of the involved addresses belong to the wallet", function() {
wallet.processConfirmedTx(tx)
assert.deepEqual(wallet.unspentMap, {})
})
})
function verifyOutputAdded(index, pending) {
var txOut = tx.outs[index]
var key = tx.getId() + ":" + index
var output = wallet.unspentMap[key]
assert.deepEqual(output.hash, tx.getHash())
assert.deepEqual(output.txHash, tx.getHash())
assert.equal(output.value, txOut.value)
assert.equal(output.pending, pending)
@ -512,13 +518,14 @@ describe('Wallet', function() {
})
function getFee(wallet, tx) {
var inputValue = tx.ins.reduce(function(memo, input){
var id = Array.prototype.reverse.call(input.hash).toString('hex')
return memo + wallet.unspentMap[id + ':' + input.index].value
var inputValue = tx.ins.reduce(function(accum, input) {
var txId = bufferutils.reverse(input.hash).toString('hex')
return accum + wallet.unspentMap[txId + ':' + input.index].value
}, 0)
return tx.outs.reduce(function(memo, output){
return memo - output.value
return tx.outs.reduce(function(accum, output) {
return accum - output.value
}, inputValue)
}
})