flocore-node/scratch.txt
Chris Kleeschulte 58a5c14cdf wip
2017-06-23 07:33:54 -04:00

513 lines
12 KiB
Plaintext

AddressService.prototype.concurrentBlockHandler = function(block, connectBlock, callback) {
var self = this;
var txs = block.transactions;
var height = block.__height;
var action = 'put';
var reverseAction = 'del';
if (!connectBlock) {
action = 'del';
reverseAction = 'put';
}
var operations = [];
for(var i = 0; i < txs.length; i++) {
var tx = txs[i];
var txid = tx.id;
var inputs = tx.inputs;
var outputs = tx.outputs;
// Subscription messages
var txmessages = {};
var outputLength = outputs.length;
for (var outputIndex = 0; outputIndex < outputLength; outputIndex++) {
var output = outputs[outputIndex];
var script = output.script;
if(!script) {
log.debug('Invalid script');
continue;
}
var address = self.getAddressString(script);
if(!address) {
continue;
}
var key = self._encoding.encodeAddressIndexKey(address, height, txid);
operations.push({
type: action,
key: key
});
// Collect data for subscribers
if (txmessages[address]) {
txmessages[address].outputIndexes.push(outputIndex);
} else {
txmessages[address] = {
tx: tx,
height: height,
outputIndexes: [outputIndex],
address: address,
timestamp: block.header.timestamp
};
}
}
if(tx.isCoinbase()) {
continue;
}
//TODO deal with P2PK
for(var inputIndex = 0; inputIndex < inputs.length; inputIndex++) {
var input = inputs[inputIndex];
if(!input.script) {
log.debug('Invalid script');
continue;
}
var inputAddress = self.getAddressString(input.script);
if(!inputAddress) {
continue;
}
var inputKey = self._encoding.encodeAddressIndexKey(inputAddress, height, txid);
operations.push({
type: action,
key: inputKey
});
}
}
setImmediate(function() {
callback(null, operations);
});
};
AddressService.prototype.blockHandler = function(block, connectBlock, callback) {
var self = this;
var txs = block.transactions;
var action = 'put';
var reverseAction = 'del';
if (!connectBlock) {
action = 'del';
reverseAction = 'put';
}
var operations = [];
async.eachSeries(txs, function(tx, next) {
var txid = tx.id;
var inputs = tx.inputs;
var outputs = tx.outputs;
var outputLength = outputs.length;
for (var outputIndex = 0; outputIndex < outputLength; outputIndex++) {
var output = outputs[outputIndex];
var script = output.script;
if(!script) {
log.debug('Invalid script');
continue;
}
var address = self.getAddressString(script);
if(!address) {
continue;
}
var key = self._encoding.encodeUtxoIndexKey(address, txid, outputIndex);
var value = self._encoding.encodeUtxoIndexValue(block.__height, output.satoshis, output._scriptBuffer);
operations.push({
type: action,
key: key,
value: value
});
}
if(tx.isCoinbase()) {
return next();
}
//TODO deal with P2PK
async.each(inputs, function(input, next) {
if(!input.script) {
log.debug('Invalid script');
return next();
}
var inputAddress = self.getAddressString(input.script);
if(!inputAddress) {
return next();
}
var inputKey = self._encoding.encodeUtxoIndexKey(inputAddress, input.prevTxId, input.outputIndex);
//common case is connecting blocks and deleting outputs spent by these inputs
if (connectBlock) {
operations.push({
type: 'del',
key: inputKey
});
next();
} else { // uncommon and slower, this happens during a reorg
self.node.services.transaction.getTransaction(input.prevTxId.toString('hex'), {}, function(err, tx) {
var utxo = tx.outputs[input.outputIndex];
var inputValue = self._encoding.encodeUtxoIndexValue(tx.__height, utxo.satoshis, utxo._scriptBuffer);
operations.push({
type: 'put',
key: inputKey,
value: inputValue
});
next();
});
}
}, function(err) {
if(err) {
return next(err);
}
next();
});
}, function(err) {
//we are aync predicated on reorg sitch
if(err) {
return callback(err);
}
callback(null, operations);
});
};
TransactionService.prototype.blockHandler = function(block, connectBlock, callback) {
var self = this;
var action = 'put';
var reverseAction = 'del';
if (!connectBlock) {
action = 'del';
reverseAction = 'put';
}
var operations = [];
this.currentTransactions = {};
async.series([
function(next) {
self.node.services.timestamp.getTimestamp(block.hash, function(err, timestamp) {
if(err) {
return next(err);
}
block.__timestamp = timestamp;
next();
});
}, function(next) {
async.eachSeries(block.transactions, function(tx, next) {
tx.__timestamp = block.__timestamp;
tx.__height = block.__height;
self._getInputValues(tx, function(err, inputValues) {
if(err) {
return next(err);
}
tx.__inputValues = inputValues;
self.currentTransactions[tx.id] = tx;
operations.push({
type: action,
key: self.encoding.encodeTransactionKey(tx.id),
value: self.encoding.encodeTransactionValue(tx)
});
next();
});
}, function(err) {
if(err) {
return next(err);
}
next();
});
}], function(err) {
if(err) {
return callback(err);
}
callback(null, operations);
});
};
MempoolService.prototype.blockHandler = function(block, connectBlock, callback) {
var self = this;
if (!self._handleBlocks) {
return setImmediate(callback);
}
var txs = block.transactions;
var action = 'del';
if (!connectBlock) {
action = 'put';
}
for(var i = 0; i < txs.length; i++) {
var tx = txs[i];
self._updateMempool(tx, action);
}
setImmediate(callback);
};
WalletService.prototype.blockHandler = function(block, connectBlock, callback) {
var opts = {
block: block,
connectBlock: connectBlock,
serial: true
};
this._blockHandler(opts, callback);
};
WalletService.prototype.concurrentBlockHandler = function(block, connectBlock, callback) {
var opts = {
block: block,
connectBlock: connectBlock
};
this._blockHandler(opts, callback);
};
WalletService.prototype._blockHandler = function(opts, callback) {
var self = this;
if (!self._checkAddresses()) {
return setImmediate(function() {
callback(null, []);
});
}
async.mapSeries(opts.block.transactions, function(tx, next) {
self._processTransaction(opts, tx, next);
}, function(err, operations) {
if(err) {
return callback(err);
}
var ret = _.compact(_.flattenDeep(operations));
callback(null, ret);
});
};
WalletService.prototype._processTransaction = function(opts, tx, callback) {
var self = this;
tx.outputs.forEach(function(output, index) {
output.index = index;
});
var ioData = tx.inputs.concat(tx.outputs);
async.mapSeries(ioData, function(io, next) {
if (opts.serial) {
self._processSerialIO(opts, tx, io, next);
} else {
self._processConcurrentIO(opts, tx, io, next);
}
}, function(err, operations) {
if(err) {
return callback(err);
}
callback(null, operations);
});
};
WalletService.prototype._processConcurrentIO = function(opts, tx, io, callback) {
var self = this;
var walletIds = self._getWalletIdsFromScript(io);
if (!walletIds) {
return callback();
}
var actions = self._getActions(opts.connectBlock);
var operations = walletIds.map(function(walletId) {
return {
type: actions[0],
key: self._encoding.encodeWalletTransactionKey(walletId, opts.block.__height, tx.id)
};
});
setImmediate(function() {
callback(null, operations);
});
};
WalletService.prototype._processSerialIO = function(opts, tx, io, callback) {
var fn = this._processSerialOutput;
if (io instanceof Input) {
fn = this._processSerialInput;
}
fn.call(this, opts, tx, io, callback);
};
WalletService.prototype._getWalletIdsFromScript = function(io) {
if(!io.script) {
log.debug('Invalid script');
return;
}
return this._addressMap[this.getAddressString(io)];
};
WalletService.prototype._getActions = function(connect) {
var action = 'put';
var reverseAction = 'del';
if (!connect) {
action = 'del';
reverseAction = 'put';
}
return [action, reverseAction];
};
WalletService.prototype._processSerialOutput = function(opts, tx, output, callback) {
var self = this;
var walletIds = self._getWalletIdsFromScript(output);
if (!walletIds) {
return callback();
}
var actions = self._getActions(opts.connectBlock);
async.mapSeries(walletIds, function(walletId, next) {
self.balances[walletId] = self.balances[walletId] || 0;
self.balances[walletId] += opts.connectBlock ? output.satoshis : (-1 * output.satoshis);
var operations = [
{
type: actions[0],
key: self._encoding.encodeWalletUtxoKey(walletId, tx.id, output.index),
value: self._encoding.encodeWalletUtxoValue(opts.block.__height, output.satoshis, output._scriptBuffer)
},
{
type: actions[0],
key: self._encoding.encodeWalletUtxoSatoshisKey(walletId, output.satoshis, tx.id, output.index),
value: self._encoding.encodeWalletUtxoSatoshisValue(opts.block.__height, output._scriptBuffer)
},
{
type: 'put',
key: self._encoding.encodeWalletBalanceKey(walletId),
value: self._encoding.encodeWalletBalanceValue(self.balances[walletId])
}
];
next(null, operations);
}, function(err, operations) {
if(err) {
return callback(err);
}
callback(null, operations);
});
};
WalletService.prototype._processSerialInput = function(opts, tx, input, callback) {
var self = this;
var walletIds = input.script && input.script.isPublicKeyIn() ?
['p2pk'] :
self._getWalletIdsFromScript(input);
if (!walletIds) {
return callback();
}
var actions = self._getActions(opts.connectBlock);
async.mapSeries(walletIds, function(walletId, next) {
self.node.services.transaction.getTransaction(input.prevTxId.toString('hex'), {}, function(err, tx) {
if(err) {
return next(err);
}
var utxo = tx.outputs[input.outputIndex];
if (walletId === 'p2pk') {
var pubKey = utxo.script.getPublicKey().toString('hex');
walletId = self._addressMap[pubKey];
if (!walletId) {
return next(null, []);
}
}
self.balances[walletId] = self.balances[walletId] || 0;
self.balances[walletId] += opts.connectBlock ? (-1 * utxo.satoshis) : utxo.satoshis;
var operations = [
{
type: actions[1],
key: self._encoding.encodeWalletUtxoKey(walletId, input.prevTxId, input.outputIndex),
value: self._encoding.encodeWalletUtxoValue(tx.__height, utxo.satoshis, utxo._scriptBuffer)
},
{
type: actions[1],
key: self._encoding.encodeWalletUtxoSatoshisKey(walletId, utxo.satoshis, tx.id, input.outputIndex),
value: self._encoding.encodeWalletUtxoSatoshisValue(tx.__height, utxo._scriptBuffer)
},
{
type: 'put',
key: self._encoding.encodeWalletBalanceKey(walletId),
value: self._encoding.encodeWalletBalanceValue(self.balances[walletId])
}
];
next(null, operations);
});
}, function(err, operations) {
if(err) {
return callback(err);
}
callback(null, operations);
});
};
WalletService.prototype._loadAllAddresses = function(callback) {