WIP
This commit is contained in:
Josh Harvey
parent
f189438094
commit
59db6d803c
2 changed files with 2 additions and 243 deletions
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@ -153,110 +153,6 @@ function silentQuery (client, queryStr, values, cb) {
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})
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}
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// OPTIMIZE: No need to query bills if tx.fiat and tx.cryptoAtoms are set
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function billsAndTxs (client, session, cb) {
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var sessionId = session.id
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var fingerprint = session.fingerprint
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var billsQuery = 'SELECT COALESCE(SUM(denomination), 0) as fiat, ' +
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'COALESCE(SUM(satoshis), 0) AS satoshis ' +
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'FROM bills ' +
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'WHERE device_fingerprint=$1 AND session_id=$2'
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var billsValues = [fingerprint, sessionId]
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var txQuery = 'SELECT COALESCE(SUM(fiat), 0) AS fiat, ' +
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'COALESCE(SUM(satoshis), 0) AS satoshis ' +
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'FROM transactions ' +
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'WHERE device_fingerprint=$1 AND session_id=$2 AND stage=$3'
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var txValues = [fingerprint, sessionId, 'partial_request']
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async.parallel([
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async.apply(query, client, billsQuery, billsValues),
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async.apply(query, client, txQuery, txValues)
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], function (err, results) {
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if (err) return cb(err)
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// Note: PG SUM function returns int8, which is returned as a string, so
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// we need to parse, since we know these won't be huge numbers.
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cb(null, {
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billsFiat: parseInt(results[0].rows[0].fiat, 10),
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billsCryptoAtoms: new BigNumber(results[0].rows[0].satoshis),
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txFiat: parseInt(results[1].rows[0].fiat, 10),
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txCryptoAtoms: new BigNumber(results[1].rows[0].satoshis)
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})
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})
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}
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function computeSendAmount (tx, totals) {
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var fiatRemaining = (tx.fiat || totals.billsFiat) - totals.txFiat
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var cryptoAtomsRemaining = tx.cryptoAtoms.eq(0)
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? totals.billsCryptoAtoms.minus(totals.txCryptoAtoms)
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: tx.cryptoAtoms.minus(totals.txCryptoAtoms)
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var result = {
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fiat: fiatRemaining,
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cryptoAtoms: cryptoAtomsRemaining
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}
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if (result.fiat < 0 || result.cryptoAtoms.lt(0)) {
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logger.warn({tx: tx, totals: totals, result: result},
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"computeSendAmount result < 0, this shouldn't happen. " +
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'Maybe timeout arrived after machineSend.')
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result.fiat = 0
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result.cryptoAtoms = new BigNumber(0)
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}
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return result
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}
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exports.removeOldPending = function removeOldPending (timeoutMS) {
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connect(function (cerr, client, done) {
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if (cerr) return
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var sql = 'DELETE FROM pending_transactions ' +
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'WHERE incoming AND extract(EPOCH FROM now() - updated) > $1'
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var timeoutS = timeoutMS / 1000
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var values = [timeoutS]
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query(client, sql, values, function (err) {
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done()
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if (err) logger.error(err)
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})
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})
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}
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exports.pendingTxs = function pendingTxs (timeoutMS, cb) {
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connect(function (cerr, client, done) {
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if (cerr) return cb(cerr)
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var sql = 'SELECT * ' +
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'FROM pending_transactions ' +
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'WHERE (incoming OR extract(EPOCH FROM now() - updated) > $1) ' +
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'ORDER BY updated ASC'
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var timeoutS = timeoutMS / 1000
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var values = [timeoutS]
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query(client, sql, values, function (err, results) {
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done()
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cb(err, normalizeTxs(results.rows))
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})
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})
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}
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function removePendingTx (client, session, cb) {
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var sql = 'DELETE FROM pending_transactions ' +
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'WHERE device_fingerprint=$1 AND session_id=$2'
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silentQuery(client, sql, [session.fingerprint, session.id], cb)
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}
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function insertOutgoingTx (client, session, tx, totals, cb) {
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var sendAmount = computeSendAmount(tx, totals)
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var stage = 'partial_request'
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var authority = tx.fiat ? 'machine' : 'timeout'
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var cryptoAtoms = sendAmount.cryptoAtoms
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var fiat = sendAmount.fiat
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if (cryptoAtoms.eq(0)) return cb(null, {cryptoAtoms: new BigNumber(0), fiat: 0})
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insertOutgoing(client, session, tx, cryptoAtoms, fiat, stage, authority,
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function (err) {
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if (err) return cb(err)
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cb(null, {cryptoAtoms: cryptoAtoms, fiat: fiat})
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})
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}
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function insertOutgoingCompleteTx (client, session, tx, cb) {
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// Only relevant for machine source transactions, not timeouts
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if (!tx.fiat) return cb()
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@ -319,18 +215,6 @@ function insertTx (client, session, incoming, tx, cryptoAtoms, fiat, stage,
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})
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}
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function refreshPendingTx (client, session, cb) {
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var sql = 'UPDATE pending_transactions SET updated=now() ' +
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'WHERE device_fingerprint=$1 AND session_id=$2'
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connect(function (cerr, client, done) {
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if (cerr) return cb(cerr)
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query(client, sql, [session.fingerprint, session.id], function (err) {
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done(err)
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cb(err)
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})
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})
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}
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function addPendingTx (client, session, incoming, currencyCode, cryptoCode, toAddress,
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cryptoAtoms, cb) {
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var fields = ['device_fingerprint', 'session_id', 'incoming',
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@ -343,34 +227,11 @@ function addPendingTx (client, session, incoming, currencyCode, cryptoCode, toAd
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})
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}
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function buildOutgoingTx (client, session, tx, cb) {
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async.waterfall([
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async.apply(billsAndTxs, client, session),
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async.apply(insertOutgoingTx, client, session, tx)
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], cb)
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}
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// Calling function should only send bitcoins if result.cryptoAtomsToSend > 0
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exports.addOutgoingTx = function addOutgoingTx (session, tx, cb) {
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connect(function (cerr, client, done) {
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if (cerr) return cb(cerr)
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async.series([
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async.apply(silentQuery, client, 'BEGIN'),
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async.apply(silentQuery, client, 'LOCK TABLE transactions'),
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async.apply(insertOutgoingCompleteTx, client, session, tx),
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async.apply(removePendingTx, client, session),
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async.apply(buildOutgoingTx, client, session, tx)
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], function (err, results) {
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if (err) {
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rollback(client, done)
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return cb(err)
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}
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silentQuery(client, 'COMMIT', [], function () {
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done()
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var toSend = results[4]
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cb(null, toSend)
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})
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})
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insertOutgoingCompleteTx(client, session, tx, cb)
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})
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}
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@ -390,61 +251,6 @@ exports.sentCoins = function sentCoins (session, tx, authority, toSend, fee,
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})
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}
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function ensureNotFinal (client, session, cb) {
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var sql = 'SELECT id FROM transactions ' +
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'WHERE device_fingerprint=$1 AND session_id=$2 AND incoming=$3 ' +
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'AND stage=$4' +
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'LIMIT 1'
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var values = [session.fingerprint, session.id, false, 'final_request']
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client.query(sql, values, function (err, results) {
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var error
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if (err) return cb(err)
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if (results.rows.length > 0) {
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error = new Error('Final request already exists')
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error.name = 'staleBill'
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error.severity = 'low'
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return cb(error)
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}
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cb()
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})
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}
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exports.addOutgoingPending = function addOutgoingPending (session, currencyCode,
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cryptoCode, toAddress, cb) {
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connect(function (cerr, client, done) {
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if (cerr) return cb(cerr)
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async.series([
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async.apply(silentQuery, client, 'BEGIN', null),
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async.apply(ensureNotFinal, client, session),
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async.apply(addPendingTx, client, session, false, currencyCode, cryptoCode, toAddress,
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0)
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], function (err) {
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if (err) {
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return rollback(client, function (rberr) {
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done(rberr)
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if (isUniqueViolation(err)) {
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// Pending tx exists, refresh it.
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return refreshPendingTx(client, session, cb)
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}
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if (err.name === 'staleBill') {
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logger.info('Received a bill insert after send coins request')
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return cb()
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}
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logger.error(err)
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return cb(err)
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})
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}
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silentQuery(client, 'COMMIT', null, function () {
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done()
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cb()
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})
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})
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})
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}
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exports.addInitialIncoming = function addInitialIncoming (session, tx, cb) {
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connect(function (cerr, client, done) {
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if (cerr) return cb(cerr)
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