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WIP more incoming tx logic

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This commit is contained in:
Josh Harvey 2014-11-24 14:57:07 -05:00
parent 2e51bf646e
commit d905b6898d
3 changed files with 99 additions and 18 deletions
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70
lib/postgresql_interface.js
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@ -153,10 +153,24 @@ function computeSendAmount(tx, totals) {
return result;
}
exports.removeOldPending = function removeOldPending(timeoutMS) {
connect(function(err, client, done) {
var sql = 'DELETE FROM pending_transactions ' +
'WHERE incoming AND extract(EPOCH FROM now() - created) > $1)';
var timeoutS = timeoutMS / 1000;
var values = [timeoutS];
query(client, sql, values, function(err) {
done();
if (err) logger.error(err);
});
});
};
exports.pendingTxs = function pendingTxs(timeoutMS, cb) {
connect(function(err, client, done) {
var sql = 'SELECT * FROM pending_transactions ' +
'WHERE (incoming OR EXTRACT(EPOCH FROM now() - created > $2) ' +
var sql = 'SELECT *, extract(EPOCH FROM now() - created) AS age ' +
'FROM pending_transactions ' +
'WHERE (incoming OR age > $2) ' +
'ORDER BY created ASC';
var timeoutS = timeoutMS / 1000;
var values = [timeoutS];
@ -303,7 +317,7 @@ exports.addInitialIncoming = function addInitialIncoming(deviceFingerprint, tx,
async.waterfall([
async.apply(silentQuery, client, 'BEGIN', null),
async.apply(addPendingTx, client, deviceFingerprint, tx.sessionId,
tx.incoming, tx.currencyCode, tx.toAddress),
true, tx.currencyCode, tx.toAddress),
async.apply(insertTx, client, tx, tx.satoshis, tx.fiat,
'initial_request', 'pending')
], function(err) {
@ -320,6 +334,56 @@ exports.addInitialIncoming = function addInitialIncoming(deviceFingerprint, tx,
};
function lastTxStatus(client, deviceFingerprint, sessionId, cb) {
var sql = 'SELECT satoshis, source FROM transactions ' +
'WHERE device_fingerprint=$1 AND session_id=$2 AND incoming=$3 ' +
'ORDER BY id DESC LIMIT 1';
var values = [deviceFingerprint, sessionId, true];
query(client, sql, values, cb);
}
function initialRequest(client, deviceFingerprint, sessionId, cb) {
var sql = 'SELECT fiat, satoshis FROM transactions ' +
'WHERE device_fingerprint=$1 AND session_id=$2 AND incoming=$3 ' +
'AND status=$4';
var values = [deviceFingerprint, sessionId, true, 'initial_request'];
query(client, sql, values, cb);
}
exports.dispenseStatus = function dispenseStatus(deviceFingerprint, sessionId,
cb) {
// NOTE: select for both device_fingerprint and session_id for security.
// Don't want to allow operators to read other machines' transactions.
connect(function(err, client, done) {
if (err) return cb(err);
async.parallel([
async.apply(client, initialRequest, deviceFingerprint, sessionId),
async.apply(client, lastTxStatus, deviceFingerprint, sessionId)
], function(_err, results) {
done();
if (_err) return cb(_err);
var pending = (results[0].rows.length === 1) &&
(results[1].rows.length === 1) &&
(results[1].rows[0].status == 'deposit');
if (!pending) return cb(null, null);
var requiredSatoshis = results[0].rows[0].requiredSatoshis;
var lastTx = results[1].rows[1];
// TODO: handle multiple deposits
var status = (lastTx.satoshis < requiredSatoshis) ?
'insufficientFunds' :
lastTx.source;
cb(null, status);
});
});
};
/*
exports.decrementCartridges =
function decrementCartridges(fingerprint, cartridge1, cartridge2, cb) {