haven-core-js
Version:
The JS library containing the Haven crypto plus lightweight wallet functions
99 lines (98 loc) • 3.57 kB
JavaScript
// Copyright (c) 2014-2019, MyMonero.com
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other
// materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
// used to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
;
//
const monero_config = require("./monero_config");
const moment = require("../cryptonote_utils/moment")
//
function IsTransactionConfirmed(tx, blockchain_height)
{
// TODO: check tx.mempool here?
if (tx.height === null || typeof tx.height == 'undefined') {
return false // supposing it hasn't made it into a block yet
}
return blockchain_height - tx.height > monero_config.txMinConfirms;
}
exports.IsTransactionConfirmed = IsTransactionConfirmed;
//
function IsTransactionUnlocked(tx, blockchain_height) {
const unlock_time = tx.unlock_time || 0;
if (!monero_config.maxBlockNumber) {
throw "Max block number is not set in config!";
}
if (unlock_time < monero_config.maxBlockNumber) {
// unlock time is block height
return blockchain_height >= unlock_time;
} else {
// unlock time is timestamp
var current_time = Math.round(new Date().getTime() / 1000);
return current_time >= unlock_time;
}
}
exports.IsTransactionUnlocked = IsTransactionUnlocked;
//
function TransactionLockedReason(tx, blockchain_height)
{
const unlock_time = tx.unlock_time || 0;
if (unlock_time < monero_config.maxBlockNumber) {
// unlock time is block height
var numBlocks = unlock_time - blockchain_height;
if (numBlocks <= 0) {
return "Transaction is unlocked";
}
var unlock_prediction = moment().add(
numBlocks * monero_config.avgBlockTime,
"seconds"
);
return (
"Will be unlocked in " +
numBlocks +
" blocks, ~" +
unlock_prediction.fromNow(true) +
", " +
unlock_prediction.calendar() +
""
);
} else {
// unlock time is timestamp
var current_time = Math.round(new Date().getTime() / 1000);
var time_difference = unlock_time - current_time;
if (time_difference <= 0) {
return "Transaction is unlocked";
}
var unlock_moment = moment(unlock_time * 1000);
return (
"Will be unlocked " +
unlock_moment.fromNow() +
", " +
unlock_moment.calendar()
);
}
}
exports.TransactionLockedReason = TransactionLockedReason;