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MIT License
Copyright (c) 2021 Ranchimall
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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# Exchange-Market
Exchange market for trading assets (FLO and tokens) using rupee#
## Installation
### Pre-requisite
- [X] Nodejs `version >= 12.9` (`--lts` recommended)
- [X] MySQL Server `version > 8.0`
### Download
Download the repository using git:
```
git clone https://github.com/ranchimall/exchange-market.git
```
### Install
Install using npm:
```
cd exchange-market
npm install
```
Finish the configuration when prompted
### Configuration
#### General Configuration
If not finished during installation, or to re-configure use:
```
npm run configure
```
- **port**: Port of the server to run on
- **session secret**: A random session secret. (Enter `YES` to automatically randomize it)
- **MySQL host**: Host of the MySQL server (default: ***localhost***)
- **Database name**: Database in which the data should be stored (`<database-name>`) (default: ***exchange***)
- **MySQL username**: Username for MySQL (`<sql-username>`)
- **MySQL password**: Password for MySQL (`<sql-password>`)
***Recommended*** *(optional)* Create and use a MySQL user instead of root. Remember to give access to the database to the user.
#### Set/Reset Node key password
If not set during installation, or to reset password, use:
```
npm run reset-password
```
- **private key**: Private key of the node
- **password**: Password to set for the node (`<password>`)
**Note**: Private key of the node is encrypted using the `<password>`. Thus use a ***strong*** password.
### Create Database Schema (MySQL)
Create database schema in MySQL
```
CREATE DATABASE <database-name>;
USE <database-name>;
SOURCE args/schema.sql;
```
***Recommended*** *(optional)* Create a MySQL user and grant permissions
```
CREATE USER '<sql-username>'@'localhost' IDENTIFIED WITH mysql_native_password BY '<sql-password>';
GRANT ALL PRIVILEGES ON <database-name>.* TO '<sql-username>'@'localhost';
FLUSH PRIVILEGES;
```
### More
For help or list of all commands, use
```
npm run help
```
## Starting the Server
After successful installation and configuration using the above steps, Exchange-Node can be started using:
```
npm start -- -PASSWORD=<password>
```
*(Optional)*
`console.debug` is now turned off by default. pass argument `--debug` to turn it on
```
npm start -- -PASSWORD=<password> --debug
```

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{
"screen": {
"height": 1160,
"width": 2000,
"colorDepth": 24,
"availHeight": 1080,
"availWidth": 1920,
"pixelDepth": 24
},
"navigator": {
"userAgent": "Node/14.17.3 (Linux; aarch64; arm)",
"plugins": [{
"name": "MySQL",
"filename": "mysql",
"description": "A node.js driver for mysql. It is written in JavaScript, does not require compiling, and is 100% MIT licensed."
}, {
"name": "WebSocket",
"filename": "ws",
"description": "Simple to use, blazing fast and thoroughly tested websocket client and server for Node.js"
}, {
"name": "Node fetch",
"filename": "node-fetch",
"description": "A light-weight module that brings window.fetch to node.js"
}],
"mimeTypes": [{
"description": "",
"type": "application/pdf",
"suffixes": "pdf"
}],
"cookieEnabled": true,
"language": "en-US"
},
"history": {
"length": 512
},
"location": "protocol://subdomain.example.domain/path"
}

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exchangemarket/args/schema.sql Normal file
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/* Blockchain Data */
CREATE TABLE LastTx(
floID CHAR(34) NOT NULL,
txid VARCHAR(128),
PRIMARY KEY(floID)
);
CREATE TABLE NodeList(
floID CHAR(34) NOT NULL,
uri TINYTEXT,
PRIMARY KEY(floID)
);
CREATE TABLE TagList (
tag VARCHAR(50) NOT NULL,
sellPriority INT,
buyPriority INT,
PRIMARY KEY(tag)
);
CREATE TABLE AssetList (
asset VARCHAR(64) NOT NULL,
initialPrice DECIMAL(16, 8),
PRIMARY KEY(asset)
);
CREATE TABLE TrustedList(
floID CHAR(34) NOT NULL,
PRIMARY KEY(floID)
);
/* User Data */
CREATE TABLE UserSession (
id INT NOT NULL AUTO_INCREMENT,
floID CHAR(34) NOT NULL,
proxyKey CHAR(66) NOT NULL,
session_time TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
KEY (id),
PRIMARY KEY(floID)
);
CREATE TABLE UserBalance (
id INT NOT NULL AUTO_INCREMENT,
floID CHAR(34) NOT NULL,
token VARCHAR(64) NOT NULL,
quantity DECIMAL(16, 8) NOT NULL DEFAULT 0,
PRIMARY KEY(floID, token),
KEY(id)
);
CREATE TABLE SellChips (
id INT NOT NULL AUTO_INCREMENT,
floID CHAR(34) NOT NULL,
locktime TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
asset VARCHAR(64) NOT NULL,
base DECIMAL(16, 8) NOT NULL DEFAULT 0,
quantity DECIMAL(16, 8) NOT NULL,
PRIMARY KEY(id),
FOREIGN KEY (asset) REFERENCES AssetList(asset)
);
CREATE TABLE UserTag (
id INT NOT NULL AUTO_INCREMENT,
floID CHAR(34) NOT NULL,
tag VARCHAR(50) NOT NULL,
PRIMARY KEY(floID, tag),
KEY (id),
FOREIGN KEY (tag) REFERENCES TagList(tag)
);
CREATE TABLE Distributors(
id INT NOT NULL AUTO_INCREMENT,
floID CHAR(34) NOT NULL,
asset VARCHAR(64) NOT NULL,
KEY(id),
PRIMARY KEY(floID, asset),
FOREIGN KEY (asset) REFERENCES AssetList(asset)
);
/* User Requests */
CREATE TABLE RequestLog(
id INT NOT NULL AUTO_INCREMENT,
floID CHAR(34) NOT NULL,
request TEXT NOT NULL,
sign VARCHAR(160) NOT NULL,
proxy BOOLEAN NOT NULL,
request_time TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
PRIMARY KEY(id),
UNIQUE (sign)
);
CREATE TABLE SellOrder (
id INT NOT NULL AUTO_INCREMENT,
floID CHAR(34) NOT NULL,
asset VARCHAR(64) NOT NULL,
quantity DECIMAL(16, 8) NOT NULL,
minPrice DECIMAL(16, 8) NOT NULL,
time_placed TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
PRIMARY KEY(id),
FOREIGN KEY (asset) REFERENCES AssetList(asset)
);
CREATE TABLE BuyOrder (
id INT NOT NULL AUTO_INCREMENT,
floID CHAR(34) NOT NULL,
asset VARCHAR(64) NOT NULL,
quantity DECIMAL(16, 8) NOT NULL,
maxPrice DECIMAL(16, 8) NOT NULL,
time_placed TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
PRIMARY KEY(id),
FOREIGN KEY (asset) REFERENCES AssetList(asset)
);
CREATE TABLE VaultTransactions (
id INT NOT NULL AUTO_INCREMENT,
floID CHAR(34) NOT NULL,
mode TINYINT NOT NULL,
asset_type TINYINT NOT NULL,
asset VARCHAR(32),
amount DECIMAL(16, 8),
txid VARCHAR(128),
locktime TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
r_status TINYINT NOT NULL,
PRIMARY KEY(id)
);
/* Transaction Data */
CREATE TABLE PriceHistory (
id INT NOT NULL AUTO_INCREMENT,
asset VARCHAR(64) NOT NULL,
rate DECIMAL(16, 8) NOT NULL,
rec_time TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
PRIMARY KEY(id),
FOREIGN KEY (asset) REFERENCES AssetList(asset)
);
CREATE TABLE TransferTransactions (
id INT NOT NULL AUTO_INCREMENT,
sender CHAR(34) NOT NULL,
receiver TEXT NOT NULL,
token VARCHAR(64) NOT NULL,
totalAmount DECIMAL(16, 8) NOT NULL,
tx_time TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
txid VARCHAR(66) NOT NULL,
KEY(id),
PRIMARY KEY(txid)
);
CREATE TABLE TradeTransactions (
id INT NOT NULL AUTO_INCREMENT,
seller CHAR(34) NOT NULL,
buyer CHAR(34) NOT NULL,
asset VARCHAR(64) NOT NULL,
quantity DECIMAL(16, 8) NOT NULL,
unitValue DECIMAL(16, 8) NOT NULL,
tx_time TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
txid VARCHAR(66) NOT NULL,
KEY(id),
PRIMARY KEY(txid),
FOREIGN KEY (asset) REFERENCES AssetList(asset)
);
CREATE TABLE AuditTrade(
id INT NOT NULL AUTO_INCREMENT,
rec_time TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
unit_price DECIMAL(16, 8) NOT NULL,
quantity DECIMAL(16, 8) NOT NULL,
total_cost DECIMAL(16, 8) NOT NULL,
asset VARCHAR(64) NOT NULL,
sellerID CHAR(34) NOT NULL,
seller_old_asset DECIMAL(16, 8) NOT NULL,
seller_new_asset DECIMAL(16, 8) NOT NULL,
seller_old_cash DECIMAL(16, 8) NOT NULL,
seller_new_cash DECIMAL(16, 8) NOT NULL,
buyerID CHAR(34) NOT NULL,
buyer_old_asset DECIMAL(16, 8) NOT NULL,
buyer_new_asset DECIMAL(16, 8) NOT NULL,
buyer_old_cash DECIMAL(16, 8) NOT NULL,
buyer_new_cash DECIMAL(16, 8) NOT NULL,
PRIMARY KEY(id),
FOREIGN KEY (asset) REFERENCES AssetList(asset)
);
/* External Service */
CREATE TABLE BlockchainBonds(
bond_id VARCHAR(128) NOT NULL,
floID CHAR(34) NOT NULL,
amount_in DECIMAL(16, 2) NOT NULL,
begin_date DATE NOT NULL,
btc_base DECIMAL(16, 2) NOT NULL,
usd_base DECIMAL(16, 2) NOT NULL,
gain_cut DECIMAL(6, 5) NOT NULL,
min_ipa DECIMAL(6, 5) NOT NULL,
max_period VARCHAR(10) NOT NULL,
lockin_period VARCHAR(10) NOT NULL,
close_id VARCHAR(128),
amount_out DECIMAL(16, 2),
PRIMARY KEY(bond_id)
);
CREATE TABLE CloseBondTransact(
id INT NOT NULL AUTO_INCREMENT,
bond_id VARCHAR(128) NOT NULL,
floID CHAR(34) NOT NULL,
amount DECIMAL(16, 2) NOT NULL,
end_date DATE NOT NULL,
ref_sign VARCHAR(180) NOT NULL,
btc_net DECIMAL(16, 2) NOT NULL,
usd_net DECIMAL(16, 2) NOT NULL,
txid VARCHAR(128),
close_id VARCHAR(128),
r_status TINYINT NOT NULL,
KEY(id),
PRIMARY KEY(bond_id),
FOREIGN KEY (bond_id) REFERENCES BlockchainBonds(bond_id)
);
CREATE TABLE BobsFund(
fund_id VARCHAR(128) NOT NULL,
begin_date DATE NOT NULL,
btc_base DECIMAL(16, 2) NOT NULL,
usd_base DECIMAL(16, 2) NOT NULL,
fee DECIMAL(6, 5) NOT NULL,
duration VARCHAR(10) NOT NULL,
tapout_window VARCHAR(10),
tapout_interval VARCHAR(40),
PRIMARY KEY(fund_id)
);
CREATE TABLE BobsFundInvestments(
fund_id VARCHAR(128) NOT NULL,
floID CHAR(34) NOT NULL,
amount_in DECIMAL(16, 2) NOT NULL,
close_id VARCHAR(128),
amount_out DECIMAL(16, 2),
PRIMARY KEY(fund_id, floID),
FOREIGN KEY (fund_id) REFERENCES BobsFund(fund_id)
);
CREATE TABLE CloseFundTransact(
id INT NOT NULL AUTO_INCREMENT,
fund_id VARCHAR(128) NOT NULL,
floID CHAR(34) NOT NULL,
amount DECIMAL(16, 2) NOT NULL,
end_date DATE NOT NULL,
ref_sign VARCHAR(180) NOT NULL,
btc_net DECIMAL(16, 2) NOT NULL,
usd_net DECIMAL(16, 2) NOT NULL,
txid VARCHAR(128),
close_id VARCHAR(128),
r_status TINYINT NOT NULL,
KEY(id),
PRIMARY KEY(fund_id, floID),
FOREIGN KEY (fund_id) REFERENCES BobsFund(fund_id)
);
CREATE TABLE ConvertFund(
id INT NOT NULL AUTO_INCREMENT,
amount DECIMAL(16, 8),
coin VARCHAR(8) NOT NULL,
quantity DECIMAL(16, 8),
mode TINYINT NOT NULL,
txid VARCHAR(128),
r_status TINYINT NOT NULL,
PRIMARY KEY(id)
);
CREATE TABLE DirectConvert(
id INT NOT NULL AUTO_INCREMENT,
floID CHAR(34) NOT NULL,
amount DECIMAL(16, 8),
coin VARCHAR(8) NOT NULL,
quantity DECIMAL(16, 8),
mode TINYINT NOT NULL,
rate DECIMAL(16, 2),
in_txid VARCHAR(128),
out_txid VARCHAR(128),
locktime TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
r_status TINYINT NOT NULL,
PRIMARY KEY(id)
);
CREATE TABLE RefundConvert(
id INT NOT NULL AUTO_INCREMENT,
floID CHAR(34) NOT NULL,
asset_type TINYINT NOT NULL,
asset VARCHAR(32) NOT NULL,
amount DECIMAL(16, 8),
in_txid VARCHAR(128),
out_txid VARCHAR(128),
locktime TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
r_status TINYINT NOT NULL,
PRIMARY KEY(id)
);
/* Backup Feature (Tables & Triggers) */
CREATE TABLE _backup (
t_name VARCHAR(64),
id INT,
mode BOOLEAN DEFAULT TRUE,
u_time TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
PRIMARY KEY(t_name, id)
);
CREATE table _backupCache(
id INT AUTO_INCREMENT,
t_name VARCHAR(64),
data_cache LONGTEXT,
fail BOOLEAN,
PRIMARY KEY(id)
);
CREATE TABLE sinkShares(
num INT UNSIGNED NOT NULL AUTO_INCREMENT,
share TEXT,
time_stored TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
PRIMARY KEY(num)
);
CREATE TABLE discardedSinks(
id INT AUTO_INCREMENT,
floID CHAR(34) NOT NULL,
discard_time TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
KEY(id),
PRIMARY KEY(floID)
);
CREATE TRIGGER discardedSinks_I AFTER INSERT ON discardedSinks
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('discardedSinks', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER discardedSinks_U AFTER UPDATE ON discardedSinks
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('discardedSinks', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER discardedSinks_D AFTER DELETE ON discardedSinks
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('discardedSinks', OLD.id) ON DUPLICATE KEY UPDATE mode=NULL, u_time=DEFAULT;
CREATE TRIGGER RequestLog_I AFTER INSERT ON RequestLog
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('RequestLog', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER RequestLog_U AFTER UPDATE ON RequestLog
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('RequestLog', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER RequestLog_D AFTER DELETE ON RequestLog
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('RequestLog', OLD.id) ON DUPLICATE KEY UPDATE mode=NULL, u_time=DEFAULT;
CREATE TRIGGER UserSession_I AFTER INSERT ON UserSession
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('UserSession', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER UserSession_U AFTER UPDATE ON UserSession
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('UserSession', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER UserSession_D AFTER DELETE ON UserSession
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('UserSession', OLD.id) ON DUPLICATE KEY UPDATE mode=NULL, u_time=DEFAULT;
CREATE TRIGGER UserBalance_I AFTER INSERT ON UserBalance
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('UserBalance', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER UserBalance_U AFTER UPDATE ON UserBalance
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('UserBalance', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER UserBalance_D AFTER DELETE ON UserBalance
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('UserBalance', OLD.id) ON DUPLICATE KEY UPDATE mode=NULL, u_time=DEFAULT;
CREATE TRIGGER SellChips_I AFTER INSERT ON SellChips
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('SellChips', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER SellChips_U AFTER UPDATE ON SellChips
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('SellChips', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER SellChips_D AFTER DELETE ON SellChips
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('SellChips', OLD.id) ON DUPLICATE KEY UPDATE mode=NULL, u_time=DEFAULT;
CREATE TRIGGER SellOrder_I AFTER INSERT ON SellOrder
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('SellOrder', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER SellOrder_U AFTER UPDATE ON SellOrder
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('SellOrder', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER SellOrder_D AFTER DELETE ON SellOrder
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('SellOrder', OLD.id) ON DUPLICATE KEY UPDATE mode=NULL, u_time=DEFAULT;
CREATE TRIGGER BuyOrder_I AFTER INSERT ON BuyOrder
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('BuyOrder', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER BuyOrder_U AFTER UPDATE ON BuyOrder
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('BuyOrder', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER BuyOrder_D AFTER DELETE ON BuyOrder
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('BuyOrder', OLD.id) ON DUPLICATE KEY UPDATE mode=NULL, u_time=DEFAULT;
CREATE TRIGGER VaultTransactions_I AFTER INSERT ON VaultTransactions
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('VaultTransactions', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER VaultTransactions_U AFTER UPDATE ON VaultTransactions
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('VaultTransactions', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER VaultTransactions_D AFTER DELETE ON VaultTransactions
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('VaultTransactions', OLD.id) ON DUPLICATE KEY UPDATE mode=NULL, u_time=DEFAULT;
CREATE TRIGGER CloseBondTransact_I AFTER INSERT ON CloseBondTransact
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('CloseBondTransact', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER CloseBondTransact_U AFTER UPDATE ON CloseBondTransact
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('CloseBondTransact', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER CloseBondTransact_D AFTER DELETE ON CloseBondTransact
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('CloseBondTransact', OLD.id) ON DUPLICATE KEY UPDATE mode=NULL, u_time=DEFAULT;
CREATE TRIGGER CloseFundTransact_I AFTER INSERT ON CloseFundTransact
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('CloseFundTransact', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER CloseFundTransact_U AFTER UPDATE ON CloseFundTransact
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('CloseFundTransact', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER CloseFundTransact_D AFTER DELETE ON CloseFundTransact
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('CloseFundTransact', OLD.id) ON DUPLICATE KEY UPDATE mode=NULL, u_time=DEFAULT;
CREATE TRIGGER ConvertFund_I AFTER INSERT ON ConvertFund
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('ConvertFund', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER ConvertFund_U AFTER UPDATE ON ConvertFund
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('ConvertFund', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER ConvertFund_D AFTER DELETE ON ConvertFund
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('ConvertFund', OLD.id) ON DUPLICATE KEY UPDATE mode=NULL, u_time=DEFAULT;
CREATE TRIGGER DirectConvert_I AFTER INSERT ON DirectConvert
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('DirectConvert', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER DirectConvert_U AFTER UPDATE ON DirectConvert
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('DirectConvert', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER DirectConvert_D AFTER DELETE ON DirectConvert
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('DirectConvert', OLD.id) ON DUPLICATE KEY UPDATE mode=NULL, u_time=DEFAULT;
CREATE TRIGGER RefundConvert_I AFTER INSERT ON RefundConvert
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('RefundConvert', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER RefundConvert_U AFTER UPDATE ON RefundConvert
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('RefundConvert', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER RefundConvert_D AFTER DELETE ON RefundConvert
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('RefundConvert', OLD.id) ON DUPLICATE KEY UPDATE mode=NULL, u_time=DEFAULT;
CREATE TRIGGER UserTag_I AFTER INSERT ON UserTag
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('UserTag', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER UserTag_U AFTER UPDATE ON UserTag
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('UserTag', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER UserTag_D AFTER DELETE ON UserTag
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('UserTag', OLD.id) ON DUPLICATE KEY UPDATE mode=NULL, u_time=DEFAULT;
CREATE TRIGGER Distributors_I AFTER INSERT ON Distributors
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('Distributors', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER Distributors_U AFTER UPDATE ON Distributors
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('Distributors', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER Distributors_D AFTER DELETE ON Distributors
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('Distributors', OLD.id) ON DUPLICATE KEY UPDATE mode=NULL, u_time=DEFAULT;
CREATE TRIGGER PriceHistory_I AFTER INSERT ON PriceHistory
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('PriceHistory', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER PriceHistory_U AFTER UPDATE ON PriceHistory
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('PriceHistory', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER PriceHistory_D AFTER DELETE ON PriceHistory
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('PriceHistory', OLD.id) ON DUPLICATE KEY UPDATE mode=NULL, u_time=DEFAULT;
CREATE TRIGGER AuditTrade_I AFTER INSERT ON AuditTrade
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('AuditTrade', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER AuditTrade_U AFTER UPDATE ON AuditTrade
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('AuditTrade', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER AuditTrade_D AFTER DELETE ON AuditTrade
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('AuditTrade', OLD.id) ON DUPLICATE KEY UPDATE mode=NULL, u_time=DEFAULT;
CREATE TRIGGER TradeTransactions_I AFTER INSERT ON TradeTransactions
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('TradeTransactions', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER TradeTransactions_U AFTER UPDATE ON TradeTransactions
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('TradeTransactions', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER TradeTransactions_D AFTER DELETE ON TradeTransactions
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('TradeTransactions', OLD.id) ON DUPLICATE KEY UPDATE mode=NULL, u_time=DEFAULT;
CREATE TRIGGER TransferTransactions_I AFTER INSERT ON TransferTransactions
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('TransferTransactions', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER TransferTransactions_U AFTER UPDATE ON TransferTransactions
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('TransferTransactions', NEW.id) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=DEFAULT;
CREATE TRIGGER TransferTransactions_D AFTER DELETE ON TransferTransactions
FOR EACH ROW INSERT INTO _backup (t_name, id) VALUES ('TransferTransactions', OLD.id) ON DUPLICATE KEY UPDATE mode=NULL, u_time=DEFAULT;

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/* Node data */
TRUNCATE _backup;
TRUNCATE _backupCache;
TRUNCATE AuditTrade;
TRUNCATE BuyOrder;
TRUNCATE Distributors;
TRUNCATE VaultTransactions;
TRUNCATE PriceHistory;
TRUNCATE RequestLog;
TRUNCATE SellOrder;
TRUNCATE UserBalance;
TRUNCATE UserSession;
TRUNCATE UserTag;
TRUNCATE TransferTransactions;
TRUNCATE TradeTransactions;
TRUNCATE SellChips;
TRUNCATE CloseBondTransact;
TRUNCATE CloseFundTransact;
TRUNCATE ConvertFund;
TRUNCATE DirectConvert;
TRUNCATE RefundConvert;
/* Blockchain data */
TRUNCATE LastTx;
TRUNCATE NodeList;
TRUNCATE TrustedList;
DELETE FROM BlockchainBonds;
TRUNCATE BobsFundInvestments;
DELETE FROM BobsFund;
DELETE FROM TagList;
DELETE FROM AssetList;

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'use strict';
let _I = "";
for (let arg of process.argv)
if (/^-I=/.test(arg)) {
_I = arg.split(/=(.*)/s)[1];
break;
}
const DB = require('../src/database');
const ignoreTables = ['_backupCache', 'sinkShares'];
var ignoreTables_regex = new RegExp(ignoreTables.join("|"), "i");
function listTables() {
return new Promise((resolve, reject) => {
DB.query("SHOW TABLES").then(result => {
let tables = [];
for (let i in result)
for (let j in result[i])
if (!ignoreTables_regex.test(result[i][j]))
tables.push(result[i][j]);
resolve(tables);
}).catch(error => reject(error))
})
}
function checksumTable(table) {
return new Promise((resolve, reject) => {
DB.query("CHECKSUM TABLE ??", [table]).then(result => {
let checksum = result[0].Checksum;
DB.query("SELECT COUNT(*) AS rec_count FROM ??", [table])
.then(result => resolve({ table, rec_count: result[0].rec_count, checksum }))
.catch(error => reject(error))
}).catch(error => reject(error))
})
}
function CheckDB() {
return new Promise((resolve, reject) => {
const config = require(`../args/config${_I}.json`);
DB.connect(config["sql_user"], config["sql_pwd"], config["sql_db"], config["sql_host"]).then(pool => {
listTables().then(tables => {
Promise.allSettled(tables.map(t => checksumTable(t))).then(results => {
let records = results.filter(r => r.status === "fulfilled").map(r => r.value);
console.table(records);
let errors = results.filter(r => r.status === "rejected");
if (errors.length)
console.error(errors.map(r => r.reason));
resolve(true);
}).catch(error => reject(error))
}).catch(error => reject(error))
}).catch(error => reject(error))
})
}
CheckDB().then(_ => process.exit(0)).catch(error => { console.error(error); process.exit(1); })

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(function (EXPORTS) { //btcOperator v1.1.3b
/* BTC Crypto and API Operator */
const btcOperator = EXPORTS;
//This library uses API provided by chain.so (https://chain.so/)
const URL = "https://blockchain.info/";
const DUST_AMT = 546,
MIN_FEE_UPDATE = 219;
const fetch_api = btcOperator.fetch = function (api, json_res = true) {
return new Promise((resolve, reject) => {
console.debug(URL + api);
fetch(URL + api).then(response => {
if (response.ok) {
(json_res ? response.json() : response.text())
.then(result => resolve(result))
.catch(error => reject(error))
} else {
response.json()
.then(result => reject(result))
.catch(error => reject(error))
}
}).catch(error => reject(error))
})
};
const SATOSHI_IN_BTC = 1e8;
const util = btcOperator.util = {};
util.Sat_to_BTC = value => parseFloat((value / SATOSHI_IN_BTC).toFixed(8));
util.BTC_to_Sat = value => parseInt(value * SATOSHI_IN_BTC);
function get_fee_rate() {
return new Promise((resolve, reject) => {
fetch('https://api.blockchain.info/mempool/fees').then(response => {
if (response.ok)
response.json()
.then(result => resolve(util.Sat_to_BTC(result.regular)))
.catch(error => reject(error));
else
reject(response);
}).catch(error => reject(error))
})
}
const broadcastTx = btcOperator.broadcastTx = rawTxHex => new Promise((resolve, reject) => {
let url = 'https://coinb.in/api/?uid=1&key=12345678901234567890123456789012&setmodule=bitcoin&request=sendrawtransaction';
fetch(url, {
method: 'POST',
headers: {
'Content-Type': 'application/x-www-form-urlencoded'
},
body: "rawtx=" + rawTxHex
}).then(response => {
response.text().then(resultText => {
let r = resultText.match(/<result>.*<\/result>/);
if (!r)
reject(resultText);
else {
r = r.pop().replace('<result>', '').replace('</result>', '');
if (r == '1') {
let txid = resultText.match(/<txid>.*<\/txid>/).pop().replace('<txid>', '').replace('</txid>', '');
resolve(txid);
} else if (r == '0') {
let error = resultText.match(/<response>.*<\/response>/).pop().replace('<response>', '').replace('</response>', '');
reject(decodeURIComponent(error.replace(/\+/g, " ")));
} else reject(resultText);
}
}).catch(error => reject(error))
}).catch(error => reject(error))
});
Object.defineProperties(btcOperator, {
newKeys: {
get: () => {
let r = coinjs.newKeys();
r.segwitAddress = coinjs.segwitAddress(r.pubkey).address;
r.bech32Address = coinjs.bech32Address(r.pubkey).address;
return r;
}
},
pubkey: {
value: key => key.length >= 66 ? key : (key.length == 64 ? coinjs.newPubkey(key) : coinjs.wif2pubkey(key).pubkey)
},
address: {
value: (key, prefix = undefined) => coinjs.pubkey2address(btcOperator.pubkey(key), prefix)
},
segwitAddress: {
value: key => coinjs.segwitAddress(btcOperator.pubkey(key)).address
},
bech32Address: {
value: key => coinjs.bech32Address(btcOperator.pubkey(key)).address
}
});
coinjs.compressed = true;
const verifyKey = btcOperator.verifyKey = function (addr, key) {
if (!addr || !key)
return undefined;
switch (coinjs.addressDecode(addr).type) {
case "standard":
return btcOperator.address(key) === addr;
case "multisig":
return btcOperator.segwitAddress(key) === addr;
case "bech32":
return btcOperator.bech32Address(key) === addr;
default:
return null;
}
}
const validateAddress = btcOperator.validateAddress = function (addr) {
if (!addr)
return undefined;
let type = coinjs.addressDecode(addr).type;
if (["standard", "multisig", "bech32", "multisigBech32"].includes(type))
return type;
else
return false;
}
btcOperator.multiSigAddress = function (pubKeys, minRequired, bech32 = true) {
if (!Array.isArray(pubKeys))
throw "pubKeys must be an array of public keys";
else if (pubKeys.length < minRequired)
throw "minimum required should be less than the number of pubKeys";
if (bech32)
return coinjs.pubkeys2MultisigAddressBech32(pubKeys, minRequired);
else
return coinjs.pubkeys2MultisigAddress(pubKeys, minRequired);
}
btcOperator.decodeRedeemScript = function (redeemScript, bech32 = true) {
let script = coinjs.script();
let decoded = (bech32) ?
script.decodeRedeemScriptBech32(redeemScript) :
script.decodeRedeemScript(redeemScript);
if (!decoded)
return null;
return {
address: decoded.address,
pubKeys: decoded.pubkeys,
redeemScript: decoded.redeemscript,
required: decoded.signaturesRequired
}
}
//convert from one blockchain to another blockchain (target version)
btcOperator.convert = {};
btcOperator.convert.wif = function (source_wif, target_version = coinjs.priv) {
let keyHex = util.decodeLegacy(source_wif).hex;
if (!keyHex || keyHex.length < 66 || !/01$/.test(keyHex))
return null;
else
return util.encodeLegacy(keyHex, target_version);
}
btcOperator.convert.legacy2legacy = function (source_addr, target_version = coinjs.pub) {
let rawHex = util.decodeLegacy(source_addr).hex;
if (!rawHex)
return null;
else
return util.encodeLegacy(rawHex, target_version);
}
btcOperator.convert.legacy2bech = function (source_addr, target_version = coinjs.bech32.version, target_hrp = coinjs.bech32.hrp) {
let rawHex = util.decodeLegacy(source_addr).hex;
if (!rawHex)
return null;
else
return util.encodeBech32(rawHex, target_version, target_hrp);
}
btcOperator.convert.bech2bech = function (source_addr, target_version = coinjs.bech32.version, target_hrp = coinjs.bech32.hrp) {
let rawHex = util.decodeBech32(source_addr).hex;
if (!rawHex)
return null;
else
return util.encodeBech32(rawHex, target_version, target_hrp);
}
btcOperator.convert.bech2legacy = function (source_addr, target_version = coinjs.pub) {
let rawHex = util.decodeBech32(source_addr).hex;
if (!rawHex)
return null;
else
return util.encodeLegacy(rawHex, target_version);
}
btcOperator.convert.multisig2multisig = function (source_addr, target_version = coinjs.multisig) {
let rawHex = util.decodeLegacy(source_addr).hex;
if (!rawHex)
return null;
else
return util.encodeLegacy(rawHex, target_version);
}
btcOperator.convert.bech2multisig = function (source_addr, target_version = coinjs.multisig) {
let rawHex = util.decodeBech32(source_addr).hex;
if (!rawHex)
return null;
else {
rawHex = Crypto.util.bytesToHex(ripemd160(Crypto.util.hexToBytes(rawHex), { asBytes: true }));
return util.encodeLegacy(rawHex, target_version);
}
}
util.decodeLegacy = function (source) {
var decode = coinjs.base58decode(source);
var raw = decode.slice(0, decode.length - 4),
checksum = decode.slice(decode.length - 4);
var hash = Crypto.SHA256(Crypto.SHA256(raw, {
asBytes: true
}), {
asBytes: true
});
if (hash[0] != checksum[0] || hash[1] != checksum[1] || hash[2] != checksum[2] || hash[3] != checksum[3])
return false;
let version = raw.shift();
return {
version: version,
hex: Crypto.util.bytesToHex(raw)
}
}
util.encodeLegacy = function (hex, version) {
var bytes = Crypto.util.hexToBytes(hex);
bytes.unshift(version);
var hash = Crypto.SHA256(Crypto.SHA256(bytes, {
asBytes: true
}), {
asBytes: true
});
var checksum = hash.slice(0, 4);
return coinjs.base58encode(bytes.concat(checksum));
}
util.decodeBech32 = function (source) {
let decode = coinjs.bech32_decode(source);
if (!decode)
return false;
var raw = decode.data;
let version = raw.shift();
raw = coinjs.bech32_convert(raw, 5, 8, false);
return {
hrp: decode.hrp,
version: version,
hex: Crypto.util.bytesToHex(raw)
}
}
util.encodeBech32 = function (hex, version, hrp) {
var bytes = Crypto.util.hexToBytes(hex);
bytes = coinjs.bech32_convert(bytes, 8, 5, true);
bytes.unshift(version)
return coinjs.bech32_encode(hrp, bytes);
}
//BTC blockchain APIs
btcOperator.getBalance = addr => new Promise((resolve, reject) => {
fetch_api(`q/addressbalance/${addr}`)
.then(result => resolve(util.Sat_to_BTC(result)))
.catch(error => reject(error))
});
const BASE_TX_SIZE = 12,
BASE_INPUT_SIZE = 41,
LEGACY_INPUT_SIZE = 107,
BECH32_INPUT_SIZE = 27,
BECH32_MULTISIG_INPUT_SIZE = 35,
SEGWIT_INPUT_SIZE = 59,
MULTISIG_INPUT_SIZE_ES = 351,
BASE_OUTPUT_SIZE = 9,
LEGACY_OUTPUT_SIZE = 25,
BECH32_OUTPUT_SIZE = 23,
BECH32_MULTISIG_OUTPUT_SIZE = 34,
SEGWIT_OUTPUT_SIZE = 23;
function _redeemScript(addr, key) {
let decode = coinjs.addressDecode(addr);
switch (decode.type) {
case "standard":
return false;
case "multisig":
return key ? coinjs.segwitAddress(btcOperator.pubkey(key)).redeemscript : null;
case "bech32":
return decode.redeemscript;
default:
return null;
}
}
function _sizePerInput(addr, rs) {
switch (coinjs.addressDecode(addr).type) {
case "standard":
return BASE_INPUT_SIZE + LEGACY_INPUT_SIZE;
case "bech32":
return BASE_INPUT_SIZE + BECH32_INPUT_SIZE;
case "multisigBech32":
return BASE_INPUT_SIZE + BECH32_MULTISIG_INPUT_SIZE;
case "multisig":
switch (coinjs.script().decodeRedeemScript(rs).type) {
case "segwit__":
return BASE_INPUT_SIZE + SEGWIT_INPUT_SIZE;
case "multisig__":
return BASE_INPUT_SIZE + MULTISIG_INPUT_SIZE_ES;
default:
return null;
};
default:
return null;
}
}
function _sizePerOutput(addr) {
switch (coinjs.addressDecode(addr).type) {
case "standard":
return BASE_OUTPUT_SIZE + LEGACY_OUTPUT_SIZE;
case "bech32":
return BASE_OUTPUT_SIZE + BECH32_OUTPUT_SIZE;
case "multisigBech32":
return BASE_OUTPUT_SIZE + BECH32_MULTISIG_OUTPUT_SIZE;
case "multisig":
return BASE_OUTPUT_SIZE + SEGWIT_OUTPUT_SIZE;
default:
return null;
}
}
function validateTxParameters(parameters) {
let invalids = [];
//sender-ids
if (parameters.senders) {
if (!Array.isArray(parameters.senders))
parameters.senders = [parameters.senders];
parameters.senders.forEach(id => !validateAddress(id) ? invalids.push(id) : null);
if (invalids.length)
throw "Invalid senders:" + invalids;
}
if (parameters.privkeys) {
if (!Array.isArray(parameters.privkeys))
parameters.privkeys = [parameters.privkeys];
if (parameters.senders.length != parameters.privkeys.length)
throw "Array length for senders and privkeys should be equal";
parameters.senders.forEach((id, i) => {
let key = parameters.privkeys[i];
if (!verifyKey(id, key)) //verify private-key
invalids.push(id);
if (key.length === 64) //convert Hex to WIF if needed
parameters.privkeys[i] = coinjs.privkey2wif(key);
});
if (invalids.length)
throw "Invalid private key for address:" + invalids;
}
//receiver-ids (and change-id)
if (!Array.isArray(parameters.receivers))
parameters.receivers = [parameters.receivers];
parameters.receivers.forEach(id => !validateAddress(id) ? invalids.push(id) : null);
if (invalids.length)
throw "Invalid receivers:" + invalids;
if (parameters.change_address && !validateAddress(parameters.change_address))
throw "Invalid change_address:" + parameters.change_address;
//fee and amounts
if ((typeof parameters.fee !== "number" || parameters.fee <= 0) && parameters.fee !== null) //fee = null (auto calc)
throw "Invalid fee:" + parameters.fee;
if (!Array.isArray(parameters.amounts))
parameters.amounts = [parameters.amounts];
if (parameters.receivers.length != parameters.amounts.length)
throw "Array length for receivers and amounts should be equal";
parameters.amounts.forEach(a => typeof a !== "number" || a <= 0 ? invalids.push(a) : null);
if (invalids.length)
throw "Invalid amounts:" + invalids;
//return
return parameters;
}
function createTransaction(senders, redeemScripts, receivers, amounts, fee, change_address, fee_from_receiver) {
return new Promise((resolve, reject) => {
let total_amount = parseFloat(amounts.reduce((t, a) => t + a, 0).toFixed(8));
const tx = coinjs.transaction();
let output_size = addOutputs(tx, receivers, amounts, change_address);
addInputs(tx, senders, redeemScripts, total_amount, fee, output_size, fee_from_receiver).then(result => {
if (result.change_amount > 0 && result.change_amount > result.fee) //add change amount if any (ignore dust change)
tx.outs[tx.outs.length - 1].value = util.BTC_to_Sat(result.change_amount); //values are in satoshi
if (fee_from_receiver) { //deduce fee from receivers if fee_from_receiver
let fee_remaining = util.BTC_to_Sat(result.fee);
for (let i = 0; i < tx.outs.length - 1 && fee_remaining > 0; i++) {
if (fee_remaining < tx.outs[i].value) {
tx.outs[i].value -= fee_remaining;
fee_remaining = 0;
} else {
fee_remaining -= tx.outs[i].value;
tx.outs[i].value = 0;
}
}
if (fee_remaining > 0)
return reject("Send amount is less than fee");
}
//remove all output with value less than DUST amount
let filtered_outputs = [], dust_value = 0;
tx.outs.forEach(o => o.value >= DUST_AMT ? filtered_outputs.push(o) : dust_value += o.value);
tx.outs = filtered_outputs;
//update result values
result.fee += util.Sat_to_BTC(dust_value);
result.output_size = output_size;
result.output_amount = total_amount - (fee_from_receiver ? result.fee : 0);
result.total_size = BASE_TX_SIZE + output_size + result.input_size;
result.transaction = tx;
resolve(result);
}).catch(error => reject(error))
})
}
function addInputs(tx, senders, redeemScripts, total_amount, fee, output_size, fee_from_receiver) {
return new Promise((resolve, reject) => {
if (fee !== null) {
addUTXOs(tx, senders, redeemScripts, fee_from_receiver ? total_amount : total_amount + fee, false).then(result => {
result.fee = fee;
resolve(result);
}).catch(error => reject(error))
} else {
get_fee_rate().then(fee_rate => {
let net_fee = BASE_TX_SIZE * fee_rate;
net_fee += (output_size * fee_rate);
(fee_from_receiver ?
addUTXOs(tx, senders, redeemScripts, total_amount, false) :
addUTXOs(tx, senders, redeemScripts, total_amount + net_fee, fee_rate)
).then(result => {
result.fee = parseFloat((net_fee + (result.input_size * fee_rate)).toFixed(8));
result.fee_rate = fee_rate;
resolve(result);
}).catch(error => reject(error))
}).catch(error => reject(error))
}
})
}
function addUTXOs(tx, senders, redeemScripts, required_amount, fee_rate, rec_args = {}) {
return new Promise((resolve, reject) => {
required_amount = parseFloat(required_amount.toFixed(8));
if (typeof rec_args.n === "undefined") {
rec_args.n = 0;
rec_args.input_size = 0;
rec_args.input_amount = 0;
}
if (required_amount <= 0)
return resolve({
input_size: rec_args.input_size,
input_amount: rec_args.input_amount,
change_amount: required_amount * -1 //required_amount will be -ve of change_amount
});
else if (rec_args.n >= senders.length)
return reject("Insufficient Balance");
let addr = senders[rec_args.n],
rs = redeemScripts[rec_args.n];
let addr_type = coinjs.addressDecode(addr).type;
let size_per_input = _sizePerInput(addr, rs);
fetch_api(`unspent?active=${addr}`).then(result => {
let utxos = result.unspent_outputs;
//console.debug("add-utxo", addr, rs, required_amount, utxos);
for (let i = 0; i < utxos.length && required_amount > 0; i++) {
if (!utxos[i].confirmations) //ignore unconfirmed utxo
continue;
var script;
if (!rs || !rs.length) //legacy script
script = utxos[i].script;
else if (((rs.match(/^00/) && rs.length == 44)) || (rs.length == 40 && rs.match(/^[a-f0-9]+$/gi)) || addr_type === 'multisigBech32') {
//redeemScript for segwit/bech32 and multisig (bech32)
let s = coinjs.script();
s.writeBytes(Crypto.util.hexToBytes(rs));
s.writeOp(0);
s.writeBytes(coinjs.numToBytes(utxos[i].value.toFixed(0), 8));
script = Crypto.util.bytesToHex(s.buffer);
} else //redeemScript for multisig (segwit)
script = rs;
tx.addinput(utxos[i].tx_hash_big_endian, utxos[i].tx_output_n, script, 0xfffffffd /*sequence*/); //0xfffffffd for Replace-by-fee
//update track values
rec_args.input_size += size_per_input;
rec_args.input_amount += util.Sat_to_BTC(utxos[i].value);
required_amount -= util.Sat_to_BTC(utxos[i].value);
if (fee_rate) //automatic fee calculation (dynamic)
required_amount += size_per_input * fee_rate;
}
rec_args.n += 1;
addUTXOs(tx, senders, redeemScripts, required_amount, fee_rate, rec_args)
.then(result => resolve(result))
.catch(error => reject(error))
}).catch(error => reject(error))
})
}
function addOutputs(tx, receivers, amounts, change_address) {
let size = 0;
for (let i in receivers) {
tx.addoutput(receivers[i], amounts[i]);
size += _sizePerOutput(receivers[i]);
}
tx.addoutput(change_address, 0);
size += _sizePerOutput(change_address);
return size;
}
/*
function autoFeeCalc(tx) {
return new Promise((resolve, reject) => {
get_fee_rate().then(fee_rate => {
let tx_size = tx.size();
for (var i = 0; i < this.ins.length; i++)
switch (tx.extractScriptKey(i).type) {
case 'scriptpubkey':
tx_size += SIGN_SIZE;
break;
case 'segwit':
case 'multisig':
tx_size += SIGN_SIZE * 0.25;
break;
default:
console.warn('Unknown script-type');
tx_size += SIGN_SIZE;
}
resolve(tx_size * fee_rate);
}).catch(error => reject(error))
})
}
function editFee(tx, current_fee, target_fee, index = -1) {
//values are in satoshi
index = parseInt(index >= 0 ? index : tx.outs.length - index);
if (index < 0 || index >= tx.outs.length)
throw "Invalid index";
let edit_value = parseInt(current_fee - target_fee), //rip of any decimal places
current_value = tx.outs[index].value; //could be BigInterger
if (edit_value < 0 && edit_value > current_value)
throw "Insufficient value at vout";
tx.outs[index].value = current_value instanceof BigInteger ?
current_value.add(new BigInteger('' + edit_value)) : parseInt(current_value + edit_value);
}
*/
function tx_fetch_for_editing(tx) {
return new Promise((resolve, reject) => {
if (typeof tx == 'string' && /^[0-9a-f]{64}$/i.test(tx)) { //tx is txid
getTx.hex(tx)
.then(txhex => resolve(deserializeTx(txhex)))
.catch(error => reject(error))
} else resolve(deserializeTx(tx));
})
}
btcOperator.editFee = function (tx_hex, new_fee, private_keys, change_only = true) {
return new Promise((resolve, reject) => {
if (!Array.isArray(private_keys))
private_keys = [private_keys];
tx_fetch_for_editing(tx_hex).then(tx => {
parseTransaction(tx).then(tx_parsed => {
if (tx_parsed.fee >= new_fee)
return reject("Fees can only be increased");
//editable addresses in output values (for fee increase)
var edit_output_address = new Set();
if (change_only === true) //allow only change values (ie, sender address) to be edited to inc fee
tx_parsed.inputs.forEach(inp => edit_output_address.add(inp.address));
else if (change_only === false) //allow all output values to be edited
tx_parsed.outputs.forEach(out => edit_output_address.add(out.address));
else if (typeof change_only == 'string') // allow only given receiver id output to be edited
edit_output_address.add(change_only);
else if (Array.isArray(change_only)) //allow only given set of receiver id outputs to be edited
change_only.forEach(id => edit_output_address.add(id));
//edit output values to increase fee
let inc_fee = util.BTC_to_Sat(new_fee - tx_parsed.fee);
if (inc_fee < MIN_FEE_UPDATE)
return reject(`Insufficient additional fee. Minimum increment: ${MIN_FEE_UPDATE}`);
for (let i = tx.outs.length - 1; i >= 0 && inc_fee > 0; i--) //reduce in reverse order
if (edit_output_address.has(tx_parsed.outputs[i].address)) {
let current_value = tx.outs[i].value;
if (current_value instanceof BigInteger) //convert BigInteger class to inv value
current_value = current_value.intValue();
//edit the value as required
if (current_value > inc_fee) {
tx.outs[i].value = current_value - inc_fee;
inc_fee = 0;
} else {
inc_fee -= current_value;
tx.outs[i].value = 0;
}
}
if (inc_fee > 0) {
let max_possible_fee = util.BTC_to_Sat(new_fee) - inc_fee; //in satoshi
return reject(`Insufficient output values to increase fee. Maximum fee possible: ${util.Sat_to_BTC(max_possible_fee)}`);
}
tx.outs = tx.outs.filter(o => o.value >= DUST_AMT); //remove all output with value less than DUST amount
//remove existing signatures and reset the scripts
let wif_keys = [];
for (let i in tx.ins) {
var addr = tx_parsed.inputs[i].address,
value = util.BTC_to_Sat(tx_parsed.inputs[i].value);
let addr_decode = coinjs.addressDecode(addr);
//find the correct key for addr
var privKey = private_keys.find(pk => verifyKey(addr, pk));
if (!privKey)
return reject(`Private key missing for ${addr}`);
//find redeemScript (if any)
const rs = _redeemScript(addr, privKey);
rs === false ? wif_keys.unshift(privKey) : wif_keys.push(privKey); //sorting private-keys (wif)
//reset the script for re-signing
var script;
if (!rs || !rs.length) {
//legacy script (derive from address)
let s = coinjs.script();
s.writeOp(118); //OP_DUP
s.writeOp(169); //OP_HASH160
s.writeBytes(addr_decode.bytes);
s.writeOp(136); //OP_EQUALVERIFY
s.writeOp(172); //OP_CHECKSIG
script = Crypto.util.bytesToHex(s.buffer);
} else if (((rs.match(/^00/) && rs.length == 44)) || (rs.length == 40 && rs.match(/^[a-f0-9]+$/gi)) || addr_decode.type === 'multisigBech32') {
//redeemScript for segwit/bech32 and multisig (bech32)
let s = coinjs.script();
s.writeBytes(Crypto.util.hexToBytes(rs));
s.writeOp(0);
s.writeBytes(coinjs.numToBytes(value.toFixed(0), 8));
script = Crypto.util.bytesToHex(s.buffer);
} else //redeemScript for multisig (segwit)
script = rs;
tx.ins[i].script = coinjs.script(script);
}
tx.witness = false; //remove all witness signatures
console.debug("Unsigned:", tx.serialize());
//re-sign the transaction
new Set(wif_keys).forEach(key => tx.sign(key, 1 /*sighashtype*/)); //Sign the tx using private key WIF
resolve(tx.serialize());
}).catch(error => reject(error))
}).catch(error => reject(error))
})
}
btcOperator.sendTx = function (senders, privkeys, receivers, amounts, fee = null, options = {}) {
return new Promise((resolve, reject) => {
createSignedTx(senders, privkeys, receivers, amounts, fee, options).then(result => {
debugger;
broadcastTx(result.transaction.serialize())
.then(txid => resolve(txid))
.catch(error => reject(error));
}).catch(error => reject(error))
})
}
const createSignedTx = btcOperator.createSignedTx = function (senders, privkeys, receivers, amounts, fee = null, options = {}) {
return new Promise((resolve, reject) => {
try {
({
senders,
privkeys,
receivers,
amounts
} = validateTxParameters({
senders,
privkeys,
receivers,
amounts,
fee,
change_address: options.change_address
}));
} catch (e) {
return reject(e)
}
let redeemScripts = [],
wif_keys = [];
for (let i in senders) {
let rs = _redeemScript(senders[i], privkeys[i]); //get redeem-script (segwit/bech32)
redeemScripts.push(rs);
rs === false ? wif_keys.unshift(privkeys[i]) : wif_keys.push(privkeys[i]); //sorting private-keys (wif)
}
if (redeemScripts.includes(null)) //TODO: segwit
return reject("Unable to get redeem-script");
//create transaction
createTransaction(senders, redeemScripts, receivers, amounts, fee, options.change_address || senders[0], options.fee_from_receiver).then(result => {
let tx = result.transaction;
console.debug("Unsigned:", tx.serialize());
new Set(wif_keys).forEach(key => tx.sign(key, 1 /*sighashtype*/)); //Sign the tx using private key WIF
console.debug("Signed:", tx.serialize());
resolve(result);
}).catch(error => reject(error));
})
}
btcOperator.createTx = function (senders, receivers, amounts, fee = null, options = {}) {
return new Promise((resolve, reject) => {
try {
({
senders,
receivers,
amounts
} = validateTxParameters({
senders,
receivers,
amounts,
fee,
change_address: options.change_address
}));
} catch (e) {
return reject(e)
}
let redeemScripts = senders.map(id => _redeemScript(id));
if (redeemScripts.includes(null)) //TODO: segwit
return reject("Unable to get redeem-script");
//create transaction
createTransaction(senders, redeemScripts, receivers, amounts, fee, options.change_address || senders[0], options.fee_from_receiver).then(result => {
result.tx_hex = result.transaction.serialize();
delete result.transaction;
resolve(result);
}).catch(error => reject(error))
})
}
btcOperator.createMultiSigTx = function (sender, redeemScript, receivers, amounts, fee = null, options = {}) {
return new Promise((resolve, reject) => {
//validate tx parameters
let addr_type = validateAddress(sender);
if (!(["multisig", "multisigBech32"].includes(addr_type)))
return reject("Invalid sender (multisig):" + sender);
else {
let script = coinjs.script();
let decode = (addr_type == "multisig") ?
script.decodeRedeemScript(redeemScript) :
script.decodeRedeemScriptBech32(redeemScript);
if (!decode || decode.address !== sender)
return reject("Invalid redeem-script");
}
try {
({
receivers,
amounts
} = validateTxParameters({
receivers,
amounts,
fee,
change_address: options.change_address
}));
} catch (e) {
return reject(e)
}
//create transaction
createTransaction([sender], [redeemScript], receivers, amounts, fee, options.change_address || sender, options.fee_from_receiver).then(result => {
result.tx_hex = result.transaction.serialize();
delete result.transaction;
resolve(result);
}).catch(error => reject(error))
})
}
function deserializeTx(tx) {
if (typeof tx === 'string' || Array.isArray(tx)) {
try {
tx = coinjs.transaction().deserialize(tx);
} catch {
throw "Invalid transaction hex";
}
} else if (typeof tx !== 'object' || typeof tx.sign !== 'function')
throw "Invalid transaction object";
return tx;
}
btcOperator.signTx = function (tx, privkeys, sighashtype = 1) {
tx = deserializeTx(tx);
if (!Array.isArray(privkeys))
privkeys = [privkeys];
for (let i in privkeys)
if (privkeys[i].length === 64)
privkeys[i] = coinjs.privkey2wif(privkeys[i]);
new Set(privkeys).forEach(key => tx.sign(key, sighashtype)); //Sign the tx using private key WIF
return tx.serialize();
}
const checkSigned = btcOperator.checkSigned = function (tx, bool = true) {
tx = deserializeTx(tx);
let n = [];
for (let i in tx.ins) {
var s = tx.extractScriptKey(i);
if (s['type'] !== 'multisig' && s['type'] !== 'multisig_bech32')
n.push(s.signed == 'true' || (tx.witness[i] && tx.witness[i].length == 2))
else {
var rs = coinjs.script().decodeRedeemScript(s.script); //will work for bech32 too, as only address is diff
let x = {
s: s['signatures'],
r: rs['signaturesRequired'],
t: rs['pubkeys'].length
};
if (x.r > x.t)
throw "signaturesRequired is more than publicKeys";
else if (x.s < x.r)
n.push(x);
else
n.push(true);
}
}
return bool ? !(n.filter(x => x !== true).length) : n;
}
btcOperator.checkIfSameTx = function (tx1, tx2) {
tx1 = deserializeTx(tx1);
tx2 = deserializeTx(tx2);
//compare input and output length
if (tx1.ins.length !== tx2.ins.length || tx1.outs.length !== tx2.outs.length)
return false;
//compare inputs
for (let i = 0; i < tx1.ins.length; i++)
if (tx1.ins[i].outpoint.hash !== tx2.ins[i].outpoint.hash || tx1.ins[i].outpoint.index !== tx2.ins[i].outpoint.index)
return false;
//compare outputs
for (let i = 0; i < tx1.outs.length; i++)
if (tx1.outs[i].value !== tx2.outs[i].value || Crypto.util.bytesToHex(tx1.outs[i].script.buffer) !== Crypto.util.bytesToHex(tx2.outs[i].script.buffer))
return false;
return true;
}
const getTxOutput = (txid, i) => new Promise((resolve, reject) => {
fetch_api(`rawtx/${txid}`)
.then(result => resolve(result.out[i]))
.catch(error => reject(error))
});
const parseTransaction = btcOperator.parseTransaction = function (tx) {
return new Promise((resolve, reject) => {
tx = deserializeTx(tx);
let result = {};
let promises = [];
//Parse Inputs
for (let i = 0; i < tx.ins.length; i++)
promises.push(getTxOutput(tx.ins[i].outpoint.hash, tx.ins[i].outpoint.index));
Promise.all(promises).then(inputs => {
result.inputs = inputs.map(inp => Object({
address: inp.addr,
value: util.Sat_to_BTC(inp.value)
}));
let signed = checkSigned(tx, false);
result.inputs.forEach((inp, i) => inp.signed = signed[i]);
//Parse Outputs
result.outputs = tx.outs.map(out => {
var address;
switch (out.script.chunks[0]) {
case 0: //bech32, multisig-bech32
address = util.encodeBech32(Crypto.util.bytesToHex(out.script.chunks[1]), coinjs.bech32.version, coinjs.bech32.hrp);
break;
case 169: //segwit, multisig-segwit
address = util.encodeLegacy(Crypto.util.bytesToHex(out.script.chunks[1]), coinjs.multisig);
break;
case 118: //legacy
address = util.encodeLegacy(Crypto.util.bytesToHex(out.script.chunks[2]), coinjs.pub);
}
return {
address,
value: util.Sat_to_BTC(out.value)
}
});
//Parse Totals
result.total_input = parseFloat(result.inputs.reduce((a, inp) => a += inp.value, 0).toFixed(8));
result.total_output = parseFloat(result.outputs.reduce((a, out) => a += out.value, 0).toFixed(8));
result.fee = parseFloat((result.total_input - result.total_output).toFixed(8));
resolve(result);
}).catch(error => reject(error))
})
}
btcOperator.transactionID = function (tx) {
tx = deserializeTx(tx);
let clone = coinjs.clone(tx);
clone.witness = null;
let raw_bytes = Crypto.util.hexToBytes(clone.serialize());
let txid = Crypto.SHA256(Crypto.SHA256(raw_bytes, { asBytes: true }), { asBytes: true }).reverse();
return Crypto.util.bytesToHex(txid);
}
const getLatestBlock = btcOperator.getLatestBlock = () => new Promise((resolve, reject) => {
fetch_api(`q/getblockcount`)
.then(result => resolve(result))
.catch(error => reject(error))
})
const getTx = btcOperator.getTx = txid => new Promise((resolve, reject) => {
fetch_api(`rawtx/${txid}`).then(result => {
getLatestBlock().then(latest_block => resolve({
block: result.block_height,
txid: result.hash,
time: result.time * 1000,
confirmations: result.block_height === null ? 0 : latest_block - result.block_height, //calculate confirmations using latest block number as api doesnt relay it
size: result.size,
fee: util.Sat_to_BTC(result.fee),
inputs: result.inputs.map(i => Object({ address: i.prev_out.addr, value: util.Sat_to_BTC(i.prev_out.value) })),
total_input_value: util.Sat_to_BTC(result.inputs.reduce((a, i) => a + i.prev_out.value, 0)),
outputs: result.out.map(o => Object({ address: o.addr, value: util.Sat_to_BTC(o.value) })),
total_output_value: util.Sat_to_BTC(result.out.reduce((a, o) => a += o.value, 0)),
}))
}).catch(error => reject(error))
});
getTx.hex = txid => new Promise((resolve, reject) => {
fetch_api(`rawtx/${txid}?format=hex`, false)
.then(result => resolve(result))
.catch(error => reject(error))
})
btcOperator.getAddressData = address => new Promise((resolve, reject) => {
fetch_api(`rawaddr/${address}`).then(data => {
let details = {};
details.balance = util.Sat_to_BTC(data.final_balance);
details.address = data.address;
details.txs = data.txs.map(tx => {
let d = {
txid: tx.hash,
time: tx.time * 1000, //s to ms
block: tx.block_height,
}
//sender list
d.tx_senders = {};
tx.inputs.forEach(i => {
if (i.prev_out.addr in d.tx_senders)
d.tx_senders[i.prev_out.addr] += i.prev_out.value;
else d.tx_senders[i.prev_out.addr] = i.prev_out.value;
});
d.tx_input_value = 0;
for (let s in d.tx_senders) {
let val = d.tx_senders[s];
d.tx_senders[s] = util.Sat_to_BTC(val);
d.tx_input_value += val;
}
d.tx_input_value = util.Sat_to_BTC(d.tx_input_value);
//receiver list
d.tx_receivers = {};
tx.out.forEach(o => {
if (o.addr in d.tx_receivers)
d.tx_receivers[o.addr] += o.value;
else d.tx_receivers[o.addr] = o.value;
});
d.tx_output_value = 0;
for (let r in d.tx_receivers) {
let val = d.tx_receivers[r];
d.tx_receivers[r] = util.Sat_to_BTC(val);
d.tx_output_value += val;
}
d.tx_output_value = util.Sat_to_BTC(d.tx_output_value);
d.tx_fee = util.Sat_to_BTC(tx.fee);
//tx type
if (tx.result > 0) { //net > 0, balance inc => type=in
d.type = "in";
d.amount = util.Sat_to_BTC(tx.result);
d.sender = Object.keys(d.tx_senders).filter(s => s !== address);
} else if (Object.keys(d.tx_receivers).some(r => r !== address)) { //net < 0, balance dec & receiver present => type=out
d.type = "out";
d.amount = util.Sat_to_BTC(tx.result * -1);
d.receiver = Object.keys(d.tx_receivers).filter(r => r !== address);
d.fee = d.tx_fee;
} else { //net < 0 (fee) & no other id in receiver list => type=self
d.type = "self";
d.amount = d.tx_receivers[address];
d.address = address
}
return d;
})
resolve(details);
}).catch(error => reject(error))
});
btcOperator.getBlock = block => new Promise((resolve, reject) => {
fetch_api(`rawblock/${block}`).then(result => resolve({
height: result.height,
hash: result.hash,
merkle_root: result.mrkl_root,
prev_block: result.prev_block,
next_block: result.next_block[0],
size: result.size,
time: result.time * 1000, //s to ms
txs: result.tx.map(t => Object({
fee: t.fee,
size: t.size,
inputs: t.inputs.map(i => Object({ address: i.prev_out.addr, value: util.Sat_to_BTC(i.prev_out.value) })),
total_input_value: util.Sat_to_BTC(t.inputs.reduce((a, i) => a + i.prev_out.value, 0)),
outputs: t.out.map(o => Object({ address: o.addr, value: util.Sat_to_BTC(o.value) })),
total_output_value: util.Sat_to_BTC(t.out.reduce((a, o) => a += o.value, 0)),
}))
})).catch(error => reject(error))
});
})('object' === typeof module ? module.exports : window.btcOperator = {});

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(function (EXPORTS) { //floCrypto v2.3.6a
/* FLO Crypto Operators */
'use strict';
const floCrypto = EXPORTS;
const p = BigInteger("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFC2F", 16);
const ecparams = EllipticCurve.getSECCurveByName("secp256k1");
const ascii_alternatives = `‘ '\n’ '\n“ "\n” "\n– --\n— ---\n≥ >=\n≤ <=\n≠ !=\n× *\n÷ /\n← <-\n→ ->\n↔ <->\n⇒ =>\n⇐ <=\n⇔ <=>`;
const exponent1 = () => p.add(BigInteger.ONE).divide(BigInteger("4"));
coinjs.compressed = true; //defaulting coinjs compressed to true;
function calculateY(x) {
let exp = exponent1();
// x is x value of public key in BigInteger format without 02 or 03 or 04 prefix
return x.modPow(BigInteger("3"), p).add(BigInteger("7")).mod(p).modPow(exp, p)
}
function getUncompressedPublicKey(compressedPublicKey) {
// Fetch x from compressedPublicKey
let pubKeyBytes = Crypto.util.hexToBytes(compressedPublicKey);
const prefix = pubKeyBytes.shift() // remove prefix
let prefix_modulus = prefix % 2;
pubKeyBytes.unshift(0) // add prefix 0
let x = new BigInteger(pubKeyBytes)
let xDecimalValue = x.toString()
// Fetch y
let y = calculateY(x);
let yDecimalValue = y.toString();
// verify y value
let resultBigInt = y.mod(BigInteger("2"));
let check = resultBigInt.toString() % 2;
if (prefix_modulus !== check)
yDecimalValue = y.negate().mod(p).toString();
return {
x: xDecimalValue,
y: yDecimalValue
};
}
function getSenderPublicKeyString() {
let privateKey = ellipticCurveEncryption.senderRandom();
var senderPublicKeyString = ellipticCurveEncryption.senderPublicString(privateKey);
return {
privateKey: privateKey,
senderPublicKeyString: senderPublicKeyString
}
}
function deriveSharedKeySender(receiverPublicKeyHex, senderPrivateKey) {
let receiverPublicKeyString = getUncompressedPublicKey(receiverPublicKeyHex);
var senderDerivedKey = ellipticCurveEncryption.senderSharedKeyDerivation(
receiverPublicKeyString.x, receiverPublicKeyString.y, senderPrivateKey);
return senderDerivedKey;
}
function deriveSharedKeyReceiver(senderPublicKeyString, receiverPrivateKey) {
return ellipticCurveEncryption.receiverSharedKeyDerivation(
senderPublicKeyString.XValuePublicString, senderPublicKeyString.YValuePublicString, receiverPrivateKey);
}
function getReceiverPublicKeyString(privateKey) {
return ellipticCurveEncryption.receiverPublicString(privateKey);
}
function wifToDecimal(pk_wif, isPubKeyCompressed = false) {
let pk = Bitcoin.Base58.decode(pk_wif)
pk.shift()
pk.splice(-4, 4)
//If the private key corresponded to a compressed public key, also drop the last byte (it should be 0x01).
if (isPubKeyCompressed == true) pk.pop()
pk.unshift(0)
let privateKeyDecimal = BigInteger(pk).toString()
let privateKeyHex = Crypto.util.bytesToHex(pk)
return {
privateKeyDecimal: privateKeyDecimal,
privateKeyHex: privateKeyHex
}
}
//generate a random Interger within range
floCrypto.randInt = function (min, max) {
min = Math.ceil(min);
max = Math.floor(max);
return Math.floor(securedMathRandom() * (max - min + 1)) + min;
}
//generate a random String within length (options : alphaNumeric chars only)
floCrypto.randString = function (length, alphaNumeric = true) {
var result = '';
var characters = alphaNumeric ? 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789' :
'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_+-./*?@#&$<>=[]{}():';
for (var i = 0; i < length; i++)
result += characters.charAt(Math.floor(securedMathRandom() * characters.length));
return result;
}
//Encrypt Data using public-key
floCrypto.encryptData = function (data, receiverPublicKeyHex) {
var senderECKeyData = getSenderPublicKeyString();
var senderDerivedKey = deriveSharedKeySender(receiverPublicKeyHex, senderECKeyData.privateKey);
let senderKey = senderDerivedKey.XValue + senderDerivedKey.YValue;
let secret = Crypto.AES.encrypt(data, senderKey);
return {
secret: secret,
senderPublicKeyString: senderECKeyData.senderPublicKeyString
};
}
//Decrypt Data using private-key
floCrypto.decryptData = function (data, privateKeyHex) {
var receiverECKeyData = {};
if (typeof privateKeyHex !== "string") throw new Error("No private key found.");
let privateKey = wifToDecimal(privateKeyHex, true);
if (typeof privateKey.privateKeyDecimal !== "string") throw new Error("Failed to detremine your private key.");
receiverECKeyData.privateKey = privateKey.privateKeyDecimal;
var receiverDerivedKey = deriveSharedKeyReceiver(data.senderPublicKeyString, receiverECKeyData.privateKey);
let receiverKey = receiverDerivedKey.XValue + receiverDerivedKey.YValue;
let decryptMsg = Crypto.AES.decrypt(data.secret, receiverKey);
return decryptMsg;
}
//Sign data using private-key
floCrypto.signData = function (data, privateKeyHex) {
var key = new Bitcoin.ECKey(privateKeyHex);
var messageHash = Crypto.SHA256(data);
var messageSign = Bitcoin.ECDSA.sign(messageHash, key.priv);
var sighex = Crypto.util.bytesToHex(messageSign);
return sighex;
}
//Verify signatue of the data using public-key
floCrypto.verifySign = function (data, signatureHex, publicKeyHex) {
var msgHash = Crypto.SHA256(data);
var sigBytes = Crypto.util.hexToBytes(signatureHex);
var publicKeyPoint = ecparams.getCurve().decodePointHex(publicKeyHex);
var verify = Bitcoin.ECDSA.verify(msgHash, sigBytes, publicKeyPoint);
return verify;
}
//Generates a new flo ID and returns private-key, public-key and floID
const generateNewID = floCrypto.generateNewID = function () {
var key = new Bitcoin.ECKey(false);
key.setCompressed(true);
return {
floID: key.getBitcoinAddress(),
pubKey: key.getPubKeyHex(),
privKey: key.getBitcoinWalletImportFormat()
}
}
Object.defineProperties(floCrypto, {
newID: {
get: () => generateNewID()
},
hashID: {
value: (str) => {
let bytes = ripemd160(Crypto.SHA256(str, { asBytes: true }), { asBytes: true });
bytes.unshift(bitjs.pub);
var hash = Crypto.SHA256(Crypto.SHA256(bytes, {
asBytes: true
}), {
asBytes: true
});
var checksum = hash.slice(0, 4);
return bitjs.Base58.encode(bytes.concat(checksum));
}
},
tmpID: {
get: () => {
let bytes = Crypto.util.randomBytes(20);
bytes.unshift(bitjs.pub);
var hash = Crypto.SHA256(Crypto.SHA256(bytes, {
asBytes: true
}), {
asBytes: true
});
var checksum = hash.slice(0, 4);
return bitjs.Base58.encode(bytes.concat(checksum));
}
}
});
//Returns public-key from private-key
floCrypto.getPubKeyHex = function (privateKeyHex) {
if (!privateKeyHex)
return null;
var key = new Bitcoin.ECKey(privateKeyHex);
if (key.priv == null)
return null;
key.setCompressed(true);
return key.getPubKeyHex();
}
//Returns flo-ID from public-key or private-key
floCrypto.getFloID = function (keyHex) {
if (!keyHex)
return null;
try {
var key = new Bitcoin.ECKey(keyHex);
if (key.priv == null)
key.setPub(keyHex);
return key.getBitcoinAddress();
} catch {
return null;
}
}
floCrypto.getAddress = function (privateKeyHex, strict = false) {
if (!privateKeyHex)
return;
var key = new Bitcoin.ECKey(privateKeyHex);
if (key.priv == null)
return null;
key.setCompressed(true);
let pubKey = key.getPubKeyHex(),
version = bitjs.Base58.decode(privateKeyHex)[0];
switch (version) {
case coinjs.priv: //BTC
return coinjs.bech32Address(pubKey).address;
case bitjs.priv: //FLO
return bitjs.pubkey2address(pubKey);
default:
return strict ? false : bitjs.pubkey2address(pubKey); //default to FLO address (if strict=false)
}
}
//Verify the private-key for the given public-key or flo-ID
floCrypto.verifyPrivKey = function (privateKeyHex, pubKey_floID, isfloID = true) {
if (!privateKeyHex || !pubKey_floID)
return false;
try {
var key = new Bitcoin.ECKey(privateKeyHex);
if (key.priv == null)
return false;
key.setCompressed(true);
if (isfloID && pubKey_floID == key.getBitcoinAddress())
return true;
else if (!isfloID && pubKey_floID.toUpperCase() == key.getPubKeyHex().toUpperCase())
return true;
else
return false;
} catch {
return null;
}
}
floCrypto.getMultisigAddress = function (publicKeyList, requiredSignatures) {
if (!Array.isArray(publicKeyList) || !publicKeyList.length)
return null;
if (!Number.isInteger(requiredSignatures) || requiredSignatures < 1 || requiredSignatures > publicKeyList.length)
return null;
try {
var multisig = bitjs.pubkeys2multisig(publicKeyList, requiredSignatures);
return multisig;
} catch {
return null;
}
}
floCrypto.decodeRedeemScript = function (redeemScript) {
try {
var decoded = bitjs.transaction().decodeRedeemScript(redeemScript);
return decoded;
} catch {
return null;
}
}
//Check if the given flo-id is valid or not
floCrypto.validateFloID = function (floID, regularOnly = false) {
if (!floID)
return false;
try {
let addr = new Bitcoin.Address(floID);
if (regularOnly && addr.version != Bitcoin.Address.standardVersion)
return false;
return true;
} catch {
return false;
}
}
//Check if the given address (any blockchain) is valid or not
floCrypto.validateAddr = function (address, std = true, bech = true) {
let raw = decodeAddress(address);
if (!raw)
return false;
if (typeof raw.version !== 'undefined') { //legacy or segwit
if (std == false)
return false;
else if (std === true || (!Array.isArray(std) && std === raw.version) || (Array.isArray(std) && std.includes(raw.version)))
return true;
else
return false;
} else if (typeof raw.bech_version !== 'undefined') { //bech32
if (bech === false)
return false;
else if (bech === true || (!Array.isArray(bech) && bech === raw.bech_version) || (Array.isArray(bech) && bech.includes(raw.bech_version)))
return true;
else
return false;
} else //unknown
return false;
}
//Check the public-key (or redeem-script) for the address (any blockchain)
floCrypto.verifyPubKey = function (pubKeyHex, address) {
let raw = decodeAddress(address);
if (!raw)
return;
let pub_hash = Crypto.util.bytesToHex(ripemd160(Crypto.SHA256(Crypto.util.hexToBytes(pubKeyHex), { asBytes: true })));
if (typeof raw.bech_version !== 'undefined' && raw.bytes.length == 32) //bech32-multisig
raw.hex = Crypto.util.bytesToHex(ripemd160(raw.bytes, { asBytes: true }));
return pub_hash === raw.hex;
}
//Convert the given address (any blockchain) to equivalent floID
floCrypto.toFloID = function (address, options = null) {
if (!address)
return;
let raw = decodeAddress(address);
if (!raw)
return;
else if (options) { //if (optional) version check is passed
if (typeof raw.version !== 'undefined' && (!options.std || !options.std.includes(raw.version)))
return;
if (typeof raw.bech_version !== 'undefined' && (!options.bech || !options.bech.includes(raw.bech_version)))
return;
}
raw.bytes.unshift(bitjs.pub);
let hash = Crypto.SHA256(Crypto.SHA256(raw.bytes, {
asBytes: true
}), {
asBytes: true
});
return bitjs.Base58.encode(raw.bytes.concat(hash.slice(0, 4)));
}
//Convert raw address bytes to floID
floCrypto.rawToFloID = function (raw_bytes) {
if (typeof raw_bytes === 'string')
raw_bytes = Crypto.util.hexToBytes(raw_bytes);
if (raw_bytes.length != 20)
return null;
raw_bytes.unshift(bitjs.pub);
let hash = Crypto.SHA256(Crypto.SHA256(raw_bytes, {
asBytes: true
}), {
asBytes: true
});
return bitjs.Base58.encode(raw_bytes.concat(hash.slice(0, 4)));
}
//Convert the given multisig address (any blockchain) to equivalent multisig floID
floCrypto.toMultisigFloID = function (address, options = null) {
if (!address)
return;
let raw = decodeAddress(address);
if (!raw)
return;
else if (options) { //if (optional) version check is passed
if (typeof raw.version !== 'undefined' && (!options.std || !options.std.includes(raw.version)))
return;
if (typeof raw.bech_version !== 'undefined' && (!options.bech || !options.bech.includes(raw.bech_version)))
return;
}
if (typeof raw.bech_version !== 'undefined') {
if (raw.bytes.length != 32) return; //multisig bech address have 32 bytes
//multisig-bech:hash=SHA256 whereas multisig:hash=r160(SHA265), thus ripemd160 the bytes from multisig-bech
raw.bytes = ripemd160(raw.bytes, {
asBytes: true
});
}
raw.bytes.unshift(bitjs.multisig);
let hash = Crypto.SHA256(Crypto.SHA256(raw.bytes, {
asBytes: true
}), {
asBytes: true
});
return bitjs.Base58.encode(raw.bytes.concat(hash.slice(0, 4)));
}
//Checks if the given addresses (any blockchain) are same (w.r.t keys)
floCrypto.isSameAddr = function (addr1, addr2) {
if (!addr1 || !addr2)
return;
let raw1 = decodeAddress(addr1),
raw2 = decodeAddress(addr2);
if (!raw1 || !raw2)
return false;
else {
if (typeof raw1.bech_version !== 'undefined' && raw1.bytes.length == 32) //bech32-multisig
raw1.hex = Crypto.util.bytesToHex(ripemd160(raw1.bytes, { asBytes: true }));
if (typeof raw2.bech_version !== 'undefined' && raw2.bytes.length == 32) //bech32-multisig
raw2.hex = Crypto.util.bytesToHex(ripemd160(raw2.bytes, { asBytes: true }));
return raw1.hex === raw2.hex;
}
}
const decodeAddress = floCrypto.decodeAddr = function (address) {
if (!address)
return;
else if (address.length == 33 || address.length == 34) { //legacy encoding
let decode = bitjs.Base58.decode(address);
let bytes = decode.slice(0, decode.length - 4);
let checksum = decode.slice(decode.length - 4),
hash = Crypto.SHA256(Crypto.SHA256(bytes, {
asBytes: true
}), {
asBytes: true
});
return (hash[0] != checksum[0] || hash[1] != checksum[1] || hash[2] != checksum[2] || hash[3] != checksum[3]) ? null : {
version: bytes.shift(),
hex: Crypto.util.bytesToHex(bytes),
bytes
}
} else if (address.length == 42 || address.length == 62) { //bech encoding
let decode = coinjs.bech32_decode(address);
if (decode) {
let bytes = decode.data;
let bech_version = bytes.shift();
bytes = coinjs.bech32_convert(bytes, 5, 8, false);
return {
bech_version,
hrp: decode.hrp,
hex: Crypto.util.bytesToHex(bytes),
bytes
}
} else
return null;
}
}
//Split the str using shamir's Secret and Returns the shares
floCrypto.createShamirsSecretShares = function (str, total_shares, threshold_limit) {
try {
if (str.length > 0) {
var strHex = shamirSecretShare.str2hex(str);
var shares = shamirSecretShare.share(strHex, total_shares, threshold_limit);
return shares;
}
return false;
} catch {
return false
}
}
//Returns the retrived secret by combining the shamirs shares
const retrieveShamirSecret = floCrypto.retrieveShamirSecret = function (sharesArray) {
try {
if (sharesArray.length > 0) {
var comb = shamirSecretShare.combine(sharesArray.slice(0, sharesArray.length));
comb = shamirSecretShare.hex2str(comb);
return comb;
}
return false;
} catch {
return false;
}
}
//Verifies the shares and str
floCrypto.verifyShamirsSecret = function (sharesArray, str) {
if (!str)
return null;
else if (retrieveShamirSecret(sharesArray) === str)
return true;
else
return false;
}
const validateASCII = floCrypto.validateASCII = function (string, bool = true) {
if (typeof string !== "string")
return null;
if (bool) {
let x;
for (let i = 0; i < string.length; i++) {
x = string.charCodeAt(i);
if (x < 32 || x > 127)
return false;
}
return true;
} else {
let x, invalids = {};
for (let i = 0; i < string.length; i++) {
x = string.charCodeAt(i);
if (x < 32 || x > 127)
if (x in invalids)
invalids[string[i]].push(i)
else
invalids[string[i]] = [i];
}
if (Object.keys(invalids).length)
return invalids;
else
return true;
}
}
floCrypto.convertToASCII = function (string, mode = 'soft-remove') {
let chars = validateASCII(string, false);
if (chars === true)
return string;
else if (chars === null)
return null;
let convertor, result = string,
refAlt = {};
ascii_alternatives.split('\n').forEach(a => refAlt[a[0]] = a.slice(2));
mode = mode.toLowerCase();
if (mode === "hard-unicode")
convertor = (c) => `\\u${('000' + c.charCodeAt().toString(16)).slice(-4)}`;
else if (mode === "soft-unicode")
convertor = (c) => refAlt[c] || `\\u${('000' + c.charCodeAt().toString(16)).slice(-4)}`;
else if (mode === "hard-remove")
convertor = c => "";
else if (mode === "soft-remove")
convertor = c => refAlt[c] || "";
else
return null;
for (let c in chars)
result = result.replaceAll(c, convertor(c));
return result;
}
floCrypto.revertUnicode = function (string) {
return string.replace(/\\u[\dA-F]{4}/gi,
m => String.fromCharCode(parseInt(m.replace(/\\u/g, ''), 16)));
}
})('object' === typeof module ? module.exports : window.floCrypto = {});

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const floGlobals = {
blockchain: "FLO",
marketID: "FMxYC7gYZhouzqtHZukGnPiQ8nvG4CMzXM",
currency: "rupee"
};
('object' === typeof module) ? module.exports = floGlobals : null;

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(function (EXPORTS) { //floTokenAPI v1.0.4a
/* Token Operator to send/receive tokens via blockchain using API calls*/
'use strict';
const tokenAPI = EXPORTS;
const DEFAULT = {
apiURL: floGlobals.tokenURL || "https://ranchimallflo.duckdns.org/",
currency: floGlobals.currency || "rupee"
}
Object.defineProperties(tokenAPI, {
URL: {
get: () => DEFAULT.apiURL
},
currency: {
get: () => DEFAULT.currency,
set: currency => DEFAULT.currency = currency
}
});
if (floGlobals.currency) tokenAPI.currency = floGlobals.currency;
Object.defineProperties(floGlobals, {
currency: {
get: () => DEFAULT.currency,
set: currency => DEFAULT.currency = currency
}
});
const fetch_api = tokenAPI.fetch = function (apicall) {
return new Promise((resolve, reject) => {
console.debug(DEFAULT.apiURL + apicall);
fetch(DEFAULT.apiURL + apicall).then(response => {
if (response.ok)
response.json().then(data => resolve(data));
else
reject(response)
}).catch(error => reject(error))
})
}
const getBalance = tokenAPI.getBalance = function (floID, token = DEFAULT.currency) {
return new Promise((resolve, reject) => {
fetch_api(`api/v1.0/getFloAddressBalance?token=${token}&floAddress=${floID}`)
.then(result => resolve(result.balance || 0))
.catch(error => reject(error))
})
}
tokenAPI.getTx = function (txID) {
return new Promise((resolve, reject) => {
fetch_api(`api/v1.0/getTransactionDetails/${txID}`).then(res => {
if (res.result === "error")
reject(res.description);
else if (!res.parsedFloData)
reject("Data piece (parsedFloData) missing");
else if (!res.transactionDetails)
reject("Data piece (transactionDetails) missing");
else
resolve(res);
}).catch(error => reject(error))
})
}
tokenAPI.sendToken = function (privKey, amount, receiverID, message = "", token = DEFAULT.currency, options = {}) {
return new Promise((resolve, reject) => {
let senderID = floCrypto.getFloID(privKey);
if (typeof amount !== "number" || isNaN(amount) || amount <= 0)
return reject("Invalid amount");
getBalance(senderID, token).then(bal => {
if (amount > bal)
return reject(`Insufficient ${token}# balance`);
floBlockchainAPI.writeData(senderID, `send ${amount} ${token}# ${message}`, privKey, receiverID, options)
.then(txid => resolve(txid))
.catch(error => reject(error))
}).catch(error => reject(error))
});
}
function sendTokens_raw(privKey, receiverID, token, amount, utxo, vout, scriptPubKey) {
return new Promise((resolve, reject) => {
var trx = bitjs.transaction();
trx.addinput(utxo, vout, scriptPubKey)
trx.addoutput(receiverID, floBlockchainAPI.sendAmt);
trx.addflodata(`send ${amount} ${token}#`);
var signedTxHash = trx.sign(privKey, 1);
floBlockchainAPI.broadcastTx(signedTxHash)
.then(txid => resolve([receiverID, txid]))
.catch(error => reject([receiverID, error]))
})
}
//bulk transfer tokens
tokenAPI.bulkTransferTokens = function (sender, privKey, token, receivers) {
return new Promise((resolve, reject) => {
if (typeof receivers !== 'object')
return reject("receivers must be object in format {receiver1: amount1, receiver2:amount2...}")
let receiver_list = Object.keys(receivers), amount_list = Object.values(receivers);
let invalidReceivers = receiver_list.filter(id => !floCrypto.validateFloID(id));
let invalidAmount = amount_list.filter(val => typeof val !== 'number' || val <= 0);
if (invalidReceivers.length)
return reject(`Invalid receivers: ${invalidReceivers}`);
else if (invalidAmount.length)
return reject(`Invalid amounts: ${invalidAmount}`);
if (receiver_list.length == 0)
return reject("Receivers cannot be empty");
if (receiver_list.length == 1) {
let receiver = receiver_list[0], amount = amount_list[0];
floTokenAPI.sendToken(privKey, amount, receiver, "", token)
.then(txid => resolve({ success: { [receiver]: txid } }))
.catch(error => reject(error))
} else {
//check for token balance
floTokenAPI.getBalance(sender, token).then(token_balance => {
let total_token_amout = amount_list.reduce((a, e) => a + e, 0);
if (total_token_amout > token_balance)
return reject(`Insufficient ${token}# balance`);
//split utxos
floBlockchainAPI.splitUTXOs(sender, privKey, receiver_list.length).then(split_txid => {
//wait for the split utxo to get confirmation
floBlockchainAPI.waitForConfirmation(split_txid).then(split_tx => {
//send tokens using the split-utxo
var scriptPubKey = split_tx.vout[0].scriptPubKey.hex;
let promises = [];
for (let i in receiver_list)
promises.push(sendTokens_raw(privKey, receiver_list[i], token, amount_list[i], split_txid, i, scriptPubKey));
Promise.allSettled(promises).then(results => {
let success = Object.fromEntries(results.filter(r => r.status == 'fulfilled').map(r => r.value));
let failed = Object.fromEntries(results.filter(r => r.status == 'rejected').map(r => r.reason));
resolve({ success, failed });
})
}).catch(error => reject(error))
}).catch(error => reject(error))
}).catch(error => reject(error))
}
})
}
tokenAPI.getAllTxs = function (floID, token = DEFAULT.currency) {
return new Promise((resolve, reject) => {
fetch_api(`api/v1.0/getFloAddressTransactions?token=${token}&floAddress=${floID}`)
.then(result => resolve(result))
.catch(error => reject(error))
})
}
const util = tokenAPI.util = {};
util.parseTxData = function (txData) {
let parsedData = {};
for (let p in txData.parsedFloData)
parsedData[p] = txData.parsedFloData[p];
parsedData.sender = txData.transactionDetails.vin[0].addr;
for (let vout of txData.transactionDetails.vout)
if (vout.scriptPubKey.addresses[0] !== parsedData.sender)
parsedData.receiver = vout.scriptPubKey.addresses[0];
parsedData.time = txData.transactionDetails.time;
return parsedData;
}
})('object' === typeof module ? module.exports : window.floTokenAPI = {});

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{
"name": "flo-exchange-market",
"version": "1.0.0",
"description": "Central Exchange market for FLO",
"main": "src/main.js",
"dependencies": {
"cookie-parser": "^1.4.5",
"express": "^4.17.1",
"express-session": "^1.17.2",
"mysql": "^2.18.1",
"node-fetch": "^2.6.1",
"proper-lockfile": "^4.1.2",
"ws": "^8.2.3"
},
"devDependencies": {},
"scripts": {
"postinstall": "node setup/post-install.js",
"help": "node setup/help.js",
"setup": "node setup/post-install.js",
"configure": "node setup/configure-settings.js",
"reset-password": "node setup/reset-password.js",
"checksum-db": "node debug/checksum-db.js",
"start": "node start.js"
},
"repository": {
"type": "git",
"url": "git+https://github.com/ranchimall/exchange-market.git"
},
"keywords": [
"exchange-market",
"FLO",
"blockchain",
"Ranchimall"
],
"author": "Sai Raj",
"license": "MIT",
"bugs": {
"url": "https://github.com/ranchimall/exchange-market/issues"
},
"homepage": "https://github.com/ranchimall/exchange-market#readme"
}

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const fs = require('fs');
const path = require('path');
const getInput = require('./getInput');
let _I = "";
for (let arg of process.argv)
if (/^-I=/.test(arg)) {
_I = arg.split(/=(.*)/s)[1];
break;
}
var config, flag_new;
try {
config = require(`../args/config${_I}.json`);
flag_new = false;
} catch (error) {
config = {
"secret": null,
"port": "8080",
"sql_user": null,
"sql_pwd": null,
"sql_db": "exchange",
"sql_host": "localhost"
};
flag_new = true;
}
function flaggedYesOrNo(text) {
return new Promise((resolve) => {
if (flag_new)
resolve(true);
else
getInput.YesOrNo(text)
.then(result => resolve(result))
.catch(error => reject(error))
})
}
function configurePort() {
return new Promise(resolve => {
getInput.Text('Enter port', config["port"]).then(port => {
config["port"] = port;
resolve(true);
})
})
}
function configureSQL() {
return new Promise(resolve => {
flaggedYesOrNo('Do you want to re-configure mySQL connection').then(value => {
if (value) {
console.log('Enter mySQL connection values: ')
getInput.Text('MySQL Host', config['sql_host']).then(host => {
config['sql_host'] = host;
getInput.Text('Database name', config['sql_db']).then(dbname => {
config['sql_db'] = dbname;
getInput.Text('MySQL username', config['sql_user']).then(sql_user => {
config['sql_user'] = sql_user;
getInput.Text('MySQL password', config['sql_pwd']).then(sql_pwd => {
config['sql_pwd'] = sql_pwd;
resolve(true);
})
})
})
})
} else
resolve(false);
})
})
}
function randomizeSessionSecret() {
return new Promise((resolve) => {
flaggedYesOrNo('Do you want to randomize the session secret').then(value => {
if (value) {
let N = Math.floor(Math.random() * (64 - 32 + 1)) + 32;
var secret = '';
var characters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
for (var i = 0; i < N; i++)
secret += characters.charAt(Math.floor(Math.random() * characters.length));
config['secret'] = secret;
resolve(true);
} else
resolve(false);
})
})
}
function configure() {
return new Promise((resolve, reject) => {
configurePort().then(port_result => {
randomizeSessionSecret().then(secret_result => {
configureSQL().then(sql_result => {
fs.writeFile(path.resolve(__dirname, '..', 'args', `config${_I}.json`), JSON.stringify(config), 'utf8', (err) => {
if (err) {
console.error(err);
return reject(false);
}
console.log('Configuration successful!');
/*
if (sql_result) {
getInput.YesOrNo('Do you want to create schema in the database').then(value => {
if (value) {
const createSchema = require('./create-schema');
createSchema().then(result => resolve(result))
.catch(error => {
console.log('Retry using: \n' + 'npm run create-schema');
reject(error);
});
} else {
console.log('To create schema, use: \n' + 'npm run create-schema');
resolve(true);
}
});
} else
*/
resolve(true);
})
})
})
});
})
}
if (!module.parent)
configure().then(_ => null).catch(error => console.error(error)).finally(_ => process.exit(0));
else
module.exports = configure;

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const fs = require('fs');
const path = require('path');
let DB = require('../src/database');
let _I = "";
for (let arg of process.argv)
if (/^-I=/.test(arg)) {
_I = arg.split(/=(.*)/s)[1];
break;
}
function createSchema() {
const config = require(`../args/config${_I}.json`);
return new Promise((resolve, reject) => {
fs.readFile(path.resolve(__dirname, '..', 'args', `schema.sql`), 'utf8', (err, data) => {
if (err) {
console.error(err);
return reject(null);
}
DB.connect(config["sql_user"], config["sql_pwd"], config["sql_db"], config["sql_host"]).then(_ => {
let txQueries = data.split(';');
txQueries.pop();
txQueries = txQueries.map(q => q.trim().replace(/\n/g, ' '));
//console.log(txQueries);
DB.transaction(txQueries).then(_ => {
console.log('SQL Schema created successfully!');
resolve(true);
}).catch(error => {
console.error(error.message);
console.log('SQL Schema creation failed! Check user permission');
reject(true);
});
}).catch(error => {
console.error(error);
console.log('Unable to connect to MySQL database! Check user permission');
reject(false);
});
});
});
}
if (!module.parent)
createSchema().then(_ => null).catch(_ => null).finally(_ => process.exit(0));
else
module.exports = createSchema;

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const readline = require('readline');
const getInput = {
Text: function(text, current = null) {
return new Promise((resolve) => {
let r = readline.createInterface({
input: process.stdin,
output: process.stdout
});
r.question(`${text} :` + (current ? `(${current})` : ''), value => {
r.close();
value = value || current;
if (value === null) {
console.log("Please enter a value!");
this.Text(text, current).then(result => resolve(result));
} else
resolve(value);
});
})
},
YesOrNo: function(text, def_value = "YES") {
return new Promise((resolve) => {
let r = readline.createInterface({
input: process.stdin,
output: process.stdout
});
r.question(`${text}? [YES/NO] : (${def_value})`, value => {
r.close();
value = (value || def_value).toLowerCase();
value = ['yes', 'y'].includes(value) ? true : ['no', 'n'].includes(value) ? false : null;
if (value === null) {
console.log("Please enter a valid value!");
this.YesOrNo(text, def_value).then(result => resolve(result));
} else
resolve(value);
});
})
}
}
module.exports = getInput;

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let message = `
Exchange market
---------------
npm install - Install the app and node modules.
npm run help - List all commands.
npm run setup - Finish the setup (configure and reset password).
npm run configure - Configure the node.
npm run reset-password - Reset the password (for private-key).
npm start - Start the application (main).
NOTE: argument 'PASSWORD' required for 'npm start'
npm start -- -PASSWORD=<password>
(Optional) Multiple instance can be run/setup on the same dir with different config files by using argument 'I'.
<command> -- -I=<instance_ID>
(Optional) 'console.debug' is now turned off by default. pass argument '--debug' to turn it on
npm start -- -PASSWORD=<password> --debug
`;
console.log(message);

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const getInput = require("./getInput");
let message = `
Exchange Market is installed
To list all commands, use:
npm run help
`;
console.log(message);
getInput.YesOrNo('Do you want to finish the setup now').then(value => {
if (value) {
let configureSettings = require('./configure-settings');
configureSettings()
.then(_ => console.log('To Re-configure, use:'))
.catch(_ => console.log('Finish the configuration later using: '))
.finally(_ => {
console.log('npm run configure');
getInput.YesOrNo('Do you want to Reset password for private key now').then(value => {
if (value) {
let resetPassword = require('./reset-password');
resetPassword()
.then(_ => console.log('To reset the password again, use: '))
.catch(_ => console.log('Reset the password later using: '))
.finally(_ => {
console.log('npm run reset-password');
process.exit(0);
})
} else {
console.log('Reset the password later using:\n' + 'npm run reset-password');
process.exit(0);
}
})
})
} else {
console.log('Finish the setup later using:\n' + 'npm run setup');
process.exit(0);
}
})

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const fs = require('fs');
const getInput = require('./getInput');
global.floGlobals = require('../docs/scripts/floGlobals');
require('../src/set_globals');
require('../docs/scripts/lib');
const floCrypto = require('../docs/scripts/floCrypto');
const path = require('path');
let _I = "";
for (let arg of process.argv)
if (/^-I=/.test(arg)) {
_I = arg.split(/=(.*)/s)[1];
break;
}
function validateKey(privKey) {
return new Promise((resolve, reject) => {
try {
if (!privKey || privKey === "")
throw 'Private Key cannot be empty!';
let floID = floCrypto.getFloID(privKey);
if (!floID || !floCrypto.verifyPrivKey(privKey, floID))
throw 'Invalid Private Key!';
return resolve(privKey);
} catch (error) {
getInput.Text(error + ' Re-Enter: (Cancel)', 'Cancel').then(value => {
if (value === 'Cancel')
return reject(true);
validateKey(value)
.then(result => resolve(result))
.catch(error => reject(error))
});
}
})
}
function getPassword() {
return new Promise((resolve, reject) => {
getInput.Text(`Enter a password [Minimum 8 characters]`, 'Cancel').then(value1 => {
if (value1 === 'Cancel')
return reject(true);
else if (value1.length < 8) {
console.log('Password length must be minimum of 8 characters');
getPassword()
.then(result => resolve(result))
.catch(error => reject(error))
} else {
getInput.Text(`Re-enter password`).then(value2 => {
if (value1 !== value2) {
console.log('Passwords doesnot match! Try again.');
getPassword()
.then(result => resolve(result))
.catch(error => reject(error))
} else
resolve(value1);
})
}
});
})
}
function resetPassword() {
return new Promise((resolve, reject) => {
getInput.Text(`Enter private key`).then(value => {
validateKey(value).then(privKey => {
getPassword().then(password => {
let encrypted = Crypto.AES.encrypt(privKey, password);
let randNum = floCrypto.randInt(10, 15);
let splitShares = floCrypto.createShamirsSecretShares(encrypted, randNum, randNum);
fs.writeFile(path.resolve(__dirname, '..', 'args', `keys${_I}.json`), JSON.stringify(splitShares), 'utf8', (err) => {
if (err) {
console.error(err);
return reject(false);
}
console.log('Password reset successful!');
resolve(true);
})
}).catch(error => {
console.log('Password reset cancelled!');
reject(true);
})
}).catch(error => {
console.log('Password reset cancelled!');
reject(true);
})
})
})
}
if (!module.parent)
resetPassword().then(_ => null).catch(_ => null).finally(_ => process.exit(0));
else
module.exports = resetPassword;

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module.exports = {
app: {
BLOCKCHAIN_REFRESH_INTERVAL: 1 * 60 * 60 * 1000, //1 hr
},
request: {
SIGN_EXPIRE_TIME: 5 * 60 * 1000, //5 mins
MAX_SESSION_TIMEOUT: 30 * 24 * 60 * 60 * 1000, //30 days
},
background: {
PERIOD_INTERVAL: 5 * 60 * 1000, //5 min,
WAIT_TIME: 2 * 60 * 1000, //2 mins,
REQUEST_TIMEOUT: 24 * 60 * 60 * 1000, //1 day
},
keys: {
SHARES_PER_NODE: 8,
SHARE_THRESHOLD: 50 / 100, //50%
DISCARD_COOLDOWN: 24 * 60 * 60 * 1000, //1 day
SHUFFLE_INTERVAL: 12 * 60 * 60 * 1000, //12 hrs
},
market: {
LAUNCH_SELLER_TAG: "launch-seller",
MAXIMUM_LAUNCH_SELL_CHIPS: 100000,
TRADE_HASH_PREFIX: "z1",
TRANSFER_HASH_PREFIX: "z0"
},
price: {
MIN_TIME: 1 * 60 * 60 * 1000, // 1 hr
DOWN_RATE: 0.05 / 100, //0.05% dec
UP_RATE: 0.2 / 100, //0.2% inc
MAX_DOWN_PER_DAY: 1 / 100, //max 1% dec
MAX_UP_PER_DAY: 4 / 100, //max 4% inc
CHECK_RATED_SELLER: false,
TOP_RANGE: 10 / 100, //top 10%
REC_HISTORY_INTERVAL: 1 * 60 * 60 * 1000, //1 hr
},
convert: {
MIN_FUND: 0.3, // 30%
TO_FIXED_VALUES: [250, 500],
TO_MIN_VALUE: 1000,
TO_MAX_VALUE: 10000,
FROM_FIXED_VALUES: [0.01],
FROM_MIN_VALUE: 0.0001,
FROM_MAX_VALUE: 10000,
},
backup: {
HASH_N_ROW: 100,
BACKUP_INTERVAL: 5 * 60 * 1000, //5 min
BACKUP_SYNC_TIMEOUT: 10 * 60 * 1000, //10 mins
CHECKSUM_INTERVAL: 10, //times of BACKUP_INTERVAL
}
}

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'use strict';
const express = require('express');
//const cookieParser = require("cookie-parser");
//const sessions = require('express-session');
const Request = require('./request');
const path = require('path');
const PUBLIC_DIR = path.resolve(__dirname, '..', 'docs');
module.exports = function App(secret) {
if (!(this instanceof App))
return new App(secret);
var server = null;
const app = express();
//session middleware
/*app.use(sessions({
secret: secret,
saveUninitialized: true,
resave: false,
name: "session"
}));*/
// parsing the incoming data
app.use(express.json());
app.use(express.urlencoded({
extended: true
}));
//serving public file
app.use(express.static(PUBLIC_DIR));
// cookie parser middleware
//app.use(cookieParser());
/* Decentralising - Users will load from user-end files and request via APIs only
//Initital page loading
app.get('/', (req, res) => res.sendFile('home.html', {
root: PUBLIC_DIR
}));
*/
app.use(function (req, res, next) {
res.setHeader('Access-Control-Allow-Origin', "*");
// Request methods you wish to allow
res.setHeader('Access-Control-Allow-Methods', 'GET, POST');
// Request headers you wish to allow
res.setHeader('Access-Control-Allow-Headers', 'X-Requested-With,content-type');
// Pass to next layer of middleware
next();
})
//get code for login
app.get('/get-login-code', Request.GetLoginCode);
//login request
app.post('/login', Request.Login);
//logout request
app.post('/logout', Request.Logout);
//place sell or buy order
app.post('/buy', Request.PlaceBuyOrder);
app.post('/sell', Request.PlaceSellOrder);
//cancel sell or buy order
app.post('/cancel', Request.CancelOrder);
//transfer amount to another user
app.post('/transfer-token', Request.TransferToken);
//list all orders and trades
app.get('/list-sellorders', Request.ListSellOrders);
app.get('/list-buyorders', Request.ListBuyOrders);
app.get('/list-trades', Request.ListTradeTransactions);
//get rates, balance and tx
app.get('/get-rates', Request.GetRates);
app.get('/rate-history', Request.GetRateHistory);
app.get('/get-balance', Request.GetBalance);
app.get('/get-transaction', Request.GetTransaction);
app.get('/get-sink', Request.GetSink);
//get account details
app.post('/account', Request.Account);
//withdraw and deposit request
app.post('/deposit-flo', Request.DepositFLO);
app.post('/withdraw-flo', Request.WithdrawFLO);
app.post('/deposit-token', Request.DepositToken);
app.post('/withdraw-token', Request.WithdrawToken);
app.post('/get-transact', Request.GetUserTransacts);
//generate or discard sinks (admin only)
app.post('/generate-sink', Request.GenerateSink);
app.post('/reshare-sink', Request.ReshareSink);
app.post('/discard-sink', Request.DiscardSink);
//convert from or to coin
app.get('/get-convert-values', Request.GetConvertValues);
app.post('/convert-to', Request.ConvertTo);
app.post('/convert-from', Request.ConvertFrom);
app.post('/deposit-convert-coin-fund', Request.DepositConvertCoinFund);
app.post('/deposit-convert-currency-fund', Request.DepositConvertCurrencyFund);
app.post('/withdraw-convert-coin-fund', Request.WithdrawConvertCoinFund);
app.post('/withdraw-convert-currency-fund', Request.WithdrawConvertCurrencyFund);
//close blockchain-bond and bobs-fund-investment
app.post('/close-blockchain-bonds', Request.CloseBlockchainBond);
app.post('/close-bobs-fund-investment', Request.CloseBobsFund);
//check balance for blockchain-bond and bobs-fund (trusted IDs only)
app.post('/check-blockchain-bond', Request.CheckBlockchainBondBalance);
app.post('/check-bobs-fund', Request.CheckBobsFundBalance);
//Manage user tags (trusted IDs only)
app.post('/add-tag', Request.AddUserTag);
app.post('/remove-tag', Request.RemoveUserTag);
app.post('/add-distributor', Request.AddDistributor);
app.post('/remove-distributor', Request.RemoveDistributor);
Request.secret = secret;
//Properties
let self = this;
//return server, express-app
Object.defineProperty(self, "server", {
get: () => server
});
Object.defineProperty(self, "express", {
get: () => app
});
//set trustedID for subAdmin requests
Object.defineProperty(self, "trustedIDs", {
set: (ids) => Request.trustedIDs = ids
});
Object.defineProperty(self, "assetList", {
set: (assets) => Request.assetList = assets
});
//Refresh data (from blockchain)
self.refreshData = (nodeList) => Request.refreshData(nodeList);
//Start (or) Stop servers
self.start = (port) => new Promise(resolve => {
server = app.listen(port, () => {
resolve(`Server Running at port ${port}`);
});
});
self.stop = () => new Promise(resolve => {
server.close(() => {
server = null;
resolve('Server stopped');
});
});
//(Node is not master) Pause serving the clients
self.pause = () => Request.pause();
//(Node is master) Resume serving the clients
self.resume = () => Request.resume();
}

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'use strict';
const keys = require('./keys');
const blockchain = require('./blockchain');
const conversion_rates = require('./services/conversion').getRate;
const bond_util = require('./services/bonds').util;
const fund_util = require('./services/bobs-fund').util;
const pCode = require('../docs/scripts/floExchangeAPI').processCode;
const DB = require("./database");
const coupling = require('./coupling');
const price = require('./price');
const {
PERIOD_INTERVAL,
REQUEST_TIMEOUT
} = require('./_constants')['background'];
const {
LAUNCH_SELLER_TAG,
MAXIMUM_LAUNCH_SELL_CHIPS
} = require('./_constants')["market"];
var assetList; //container and allowed assets
var updateBalance; // container for updateBalance function
const verifyTx = {};
function confirmDepositFLO() {
DB.query("SELECT id, floID, txid FROM VaultTransactions WHERE mode=? AND asset=? AND asset_type=? AND r_status=?", [pCode.VAULT_MODE_DEPOSIT, "FLO", pCode.ASSET_TYPE_COIN, pCode.STATUS_PENDING]).then(results => {
results.forEach(r => {
verifyTx.FLO(r.floID, r.txid, keys.sink_groups.EXCHANGE).then(amount => {
addSellChipsIfLaunchSeller(r.floID, amount).then(txQueries => {
txQueries.push(updateBalance.add(r.floID, "FLO", amount));
txQueries.push(["UPDATE VaultTransactions SET r_status=?, amount=? WHERE id=?", [pCode.STATUS_SUCCESS, amount, r.id]]);
DB.transaction(txQueries)
.then(result => console.info("FLO deposited:", r.floID, amount))
.catch(error => console.error(error))
}).catch(error => console.error(error))
}).catch(error => {
console.error(error);
if (error[0])
DB.query("UPDATE VaultTransactions SET r_status=? WHERE id=?", [pCode.STATUS_REJECTED, r.id])
.then(_ => null).catch(error => console.error(error));
});
})
}).catch(error => console.error(error))
}
verifyTx.FLO = function (sender, txid, group) {
return new Promise((resolve, reject) => {
floBlockchainAPI.getTx(txid).then(tx => {
let vin_sender = tx.vin.filter(v => v.addresses[0] === sender)
if (!vin_sender.length)
return reject([true, "Transaction not sent by the sender"]);
if (vin_sender.length !== tx.vin.length)
return reject([true, "Transaction input containes other floIDs"]);
if (!tx.blockheight)
return reject([false, "Transaction not included in any block yet"]);
if (!tx.confirmations)
return reject([false, "Transaction not confirmed yet"]);
let amount = tx.vout.reduce((a, v) => keys.sink_chest.includes(group, v.scriptPubKey.addresses[0]) ? a + v.value : a, 0);
if (amount == 0)
return reject([true, "Transaction receiver is not market ID"]); //Maybe reject as false? (to compensate delay in chestsList loading from other nodes)
else
resolve(amount);
}).catch(error => reject([false, error]))
})
}
function checkTag(floID, tag) {
return new Promise((resolve, reject) => {
DB.query("SELECT id FROM UserTag WHERE floID=? AND tag=?", [floID, tag])
.then(result => resolve(result.length ? true : false))
.catch(error => reject(error))
})
}
function addSellChipsIfLaunchSeller(floID, quantity) {
return new Promise((resolve, reject) => {
checkTag(floID, LAUNCH_SELLER_TAG).then(result => {
if (result) //floID is launch-seller
Promise.all([
DB.query("SELECT IFNULL(SUM(quantity), 0) AS sold FROM TradeTransactions WHERE seller=? AND asset=?", [floID, 'FLO']),
DB.query("SELECT IFNULL(SUM(quantity), 0) AS brought FROM TradeTransactions WHERE buyer=? AND asset=?", [floID, 'FLO']),
DB.query("SELECT IFNULL(SUM(quantity), 0) AS chips FROM SellChips WHERE floID=? AND asset=?", [floID, 'FLO']),
]).then(result => {
let sold = result[0][0].sold,
brought = result[1][0].brought,
chips = result[2][0].chips;
let remLaunchChips = MAXIMUM_LAUNCH_SELL_CHIPS - (sold + chips) + brought;
quantity = Math.min(quantity, remLaunchChips);
if (quantity > 0)
resolve([["INSERT INTO SellChips(floID, asset, quantity) VALUES (?)", [[floID, 'FLO', quantity]]]]);
else
resolve([]);
}).catch(error => reject(error))
else //floID is not launch-seller
resolve([]);
}).catch(error => reject(error))
})
}
function confirmDepositToken() {
DB.query("SELECT id, floID, txid FROM VaultTransactions WHERE mode=? AND asset_type=? AND r_status=?", [pCode.VAULT_MODE_DEPOSIT, pCode.ASSET_TYPE_TOKEN, pCode.STATUS_PENDING]).then(results => {
results.forEach(r => {
verifyTx.token(r.floID, r.txid, keys.sink_groups.EXCHANGE).then(({ token, amount, flo_amount }) => {
DB.query("SELECT id FROM VaultTransactions where floID=? AND mode=? AND asset=? AND asset_type=? AND txid=?", [r.floID, pCode.VAULT_MODE_DEPOSIT, "FLO", pCode.ASSET_TYPE_COIN, r.txid]).then(result => {
let txQueries = [];
//Add the FLO balance if necessary
if (!result.length) {
txQueries.push(updateBalance.add(r.floID, "FLO", flo_amount));
txQueries.push(["INSERT INTO VaultTransactions(txid, floID, mode, asset_type, asset, amount, r_status) VALUES (?)", [[r.txid, r.floID, pCode.VAULT_MODE_DEPOSIT, pCode.ASSET_TYPE_COIN, "FLO", flo_amount, pCode.STATUS_SUCCESS]]]);
}
txQueries.push(["UPDATE VaultTransactions SET r_status=?, asset=?, amount=? WHERE id=?", [pCode.STATUS_SUCCESS, token, amount, r.id]]);
txQueries.push(updateBalance.add(r.floID, token, amount));
DB.transaction(txQueries)
.then(result => console.info("Token deposited:", r.floID, token, amount))
.catch(error => console.error(error));
}).catch(error => console.error(error));
}).catch(error => {
console.error(error);
if (error[0])
DB.query("UPDATE VaultTransactions SET r_status=? WHERE id=?", [pCode.STATUS_REJECTED, r.id])
.then(_ => null).catch(error => console.error(error));
});
})
}).catch(error => console.error(error))
}
verifyTx.token = function (sender, txid, group, currencyOnly = false) {
return new Promise((resolve, reject) => {
floTokenAPI.getTx(txid).then(tx => {
if (tx.parsedFloData.type !== "transfer")
return reject([true, "Transaction type not 'transfer'"]);
else if (tx.parsedFloData.transferType !== "token")
return reject([true, "Transaction transfer is not 'token'"]);
var token = tx.parsedFloData.tokenIdentification,
amount = tx.parsedFloData.tokenAmount;
if (currencyOnly && token !== floGlobals.currency)
return reject([true, "Token not currency"]);
else if (!currencyOnly && ((!assetList.includes(token) && token !== floGlobals.currency) || token === "FLO"))
return reject([true, "Token not authorised"]);
let vin_sender = tx.transactionDetails.vin.filter(v => v.addr === sender)
if (!vin_sender.length)
return reject([true, "Transaction not sent by the sender"]);
let flo_amount = tx.transactionDetails.vout.reduce((a, v) => keys.sink_chest.includes(group, v.scriptPubKey.addresses[0]) ? a + v.value : a, 0);
if (flo_amount == 0)
return reject([true, "Transaction receiver is not market ID"]); //Maybe reject as false? (to compensate delay in chestsList loading from other nodes)
else
resolve({ token, amount, flo_amount });
}).catch(error => reject([false, error]))
})
}
function retryVaultWithdrawal() {
DB.query("SELECT id, floID, asset, asset_type, amount FROM VaultTransactions WHERE mode=? AND r_status=?", [pCode.VAULT_MODE_WITHDRAW, pCode.STATUS_PENDING]).then(results => {
results.forEach(r => {
if (r.asset_type == pCode.ASSET_TYPE_COIN) {
if (r.asset == "FLO")
blockchain.withdrawAsset.retry(r.floID, r.asset, r.amount, r.id);
} else if (r.asset_type == pCode.ASSET_TYPE_TOKEN)
blockchain.withdrawAsset.retry(r.floID, r.asset, r.amount, r.id)
})
}).catch(error => console.error(error))
}
function confirmVaultWithdraw() {
DB.query("SELECT id, floID, asset, asset_type, amount, txid FROM VaultTransactions WHERE mode=? AND r_status=?", [pCode.VAULT_MODE_WITHDRAW, pCode.STATUS_CONFIRMATION]).then(results => {
results.forEach(r => {
if (r.asset_type == pCode.ASSET_TYPE_COIN) {
if (r.asset == "FLO")
floBlockchainAPI.getTx(r.txid).then(tx => {
if (!tx.blockheight || !tx.confirmations) //Still not confirmed
return;
DB.query("UPDATE VaultTransactions SET r_status=? WHERE id=?", [pCode.STATUS_SUCCESS, r.id])
.then(result => console.info("FLO withdrawed:", r.floID, r.amount))
.catch(error => console.error(error))
}).catch(error => console.error(error));
else if (r.asset == "BTC")
btcOperator.getTx(r.txid).then(tx => {
if (!tx.block || !tx.confirmations) //Still not confirmed
return;
DB.query("UPDATE VaultTransactions SET r_status=? WHERE id=?", [pCode.STATUS_SUCCESS, r.id])
.then(result => console.info("BTC withdrawed:", r.floID, r.amount))
.catch(error => console.error(error))
}).catch(error => console.error(error));
} else if (r.asset_type == pCode.ASSET_TYPE_TOKEN)
floTokenAPI.getTx(r.txid).then(tx => {
if (!tx.transactionDetails.blockheight || !tx.transactionDetails.confirmations) //Still not confirmed
return;
DB.query("UPDATE VaultTransactions SET r_status=? WHERE id=?", [pCode.STATUS_SUCCESS, r.id])
.then(result => console.info("Token withdrawed:", r.floID, r.asset, r.amount))
.catch(error => console.error(error));
}).catch(error => console.error(error));
})
}).catch(error => console.error(error));
}
verifyTx.BTC = function (sender, txid, group) {
return new Promise((resolve, reject) => {
btcOperator.getTx(txid).then(tx => {
let vin_sender = tx.inputs.filter(v => floCrypto.isSameAddr(v.address, sender))
if (!vin_sender.length)
return reject([true, "Transaction not sent by the sender"]);
if (vin_sender.length !== tx.inputs.length)
return reject([true, "Transaction input containes other floIDs"]);
if (!tx.block)
return reject([false, "Transaction not included in any block yet"]);
if (!tx.confirmations)
return reject([false, "Transaction not confirmed yet"]);
let amount = tx.outputs.reduce((a, v) =>
keys.sink_chest.includes(group, floCrypto.toFloID(v.address, { bech: [coinjs.bech32.version] })) ? a + parseFloat(v.value) : a, 0);
if (amount == 0)
return reject([true, "Transaction receiver is not market ID"]); //Maybe reject as false? (to compensate delay in chestsList loading from other nodes)
else
resolve(amount);
}).catch(error => reject([false, error]))
})
}
function verifyConvert() {
//Set all timeout convert request to refund mode (thus, asset will be refund if tx gets confirmed later)
let req_timeout = new Date(Date.now() - REQUEST_TIMEOUT),
to_refund_sql = "INSERT INTO RefundConvert (floID, in_txid, asset_type, asset, r_status)" +
" SELECT floID, in_txid, ? AS asset_type, ? AS asset, r_status FROM DirectConvert" +
" WHERE r_status=? AND locktime<? AND mode=?";
let txQueries = [];
txQueries.push([to_refund_sql, [pCode.ASSET_TYPE_TOKEN, floGlobals.currency, pCode.STATUS_PENDING, req_timeout, pCode.CONVERT_MODE_GET]]);
txQueries.push([to_refund_sql, [pCode.ASSET_TYPE_COIN, "BTC", pCode.STATUS_PENDING, req_timeout, pCode.CONVERT_MODE_PUT]]);
txQueries.push(["UPDATE DirectConvert SET r_status=? WHERE r_status=? AND locktime<?", [pCode.STATUS_REJECTED, pCode.STATUS_PENDING, req_timeout]]);
DB.transaction(txQueries).then(result => {
DB.query("SELECT id, floID, mode, in_txid, amount, quantity FROM DirectConvert WHERE r_status=? AND coin=?", [pCode.STATUS_PENDING, "BTC"]).then(results => {
results.forEach(r => {
if (r.mode == pCode.CONVERT_MODE_GET) {
verifyTx.token(r.floID, r.in_txid, keys.sink_groups.CONVERT, true).then(({ amount }) => {
if (r.amount !== amount)
throw ([true, "Transaction amount mismatched in blockchain"]);
conversion_rates.BTC_INR().then(rate => {
blockchain.convertToCoin.init(r.floID, "BTC", amount, rate, r.id)
}).catch(error => console.error(error))
}).catch(error => {
console.error(error);
if (error[0])
DB.query("UPDATE DirectConvert SET r_status=? WHERE id=?", [pCode.STATUS_REJECTED, r.id])
.then(_ => null).catch(error => console.error(error));
});
} else if (r.mode == pCode.CONVERT_MODE_PUT) {
verifyTx.BTC(r.floID, r.in_txid, keys.sink_groups.CONVERT).then(quantity => {
if (r.quantity !== quantity)
throw ([true, "Transaction quantity mismatched in blockchain"]);
conversion_rates.BTC_INR().then(rate => {
blockchain.convertFromCoin.init(r.floID, quantity, rate, r.id)
}).catch(error => console.error(error))
}).catch(error => {
console.error(error);
if (error[0])
DB.query("UPDATE DirectConvert SET r_status=? WHERE id=?", [pCode.STATUS_REJECTED, r.id])
.then(_ => null).catch(error => console.error(error));
});
}
})
}).catch(error => console.error(error))
}).catch(error => console.error(error))
}
function retryConvert() {
DB.query("SELECT id, floID, mode, amount, quantity FROM DirectConvert WHERE r_status=? AND coin=?", [pCode.STATUS_PROCESSING, "BTC"]).then(results => {
results.forEach(r => {
if (r.mode == pCode.CONVERT_MODE_GET)
blockchain.convertToCoin.retry(r.floID, "BTC", r.quantity, r.id);
else if (r.mode == pCode.CONVERT_MODE_PUT)
blockchain.convertFromCoin.retry(r.floID, r.amount, r.id)
})
}).catch(error => console.error(error))
}
function confirmConvert() {
DB.query("SELECT id, floID, mode, amount, quantity, out_txid FROM DirectConvert WHERE r_status=? AND coin=?", [pCode.STATUS_CONFIRMATION, "BTC"]).then(results => {
results.forEach(r => {
if (r.mode == pCode.CONVERT_MODE_GET)
btcOperator.getTx(r.out_txid).then(tx => {
if (!tx.block || !tx.confirmations) //Still not confirmed
return;
DB.query("UPDATE DirectConvert SET r_status=? WHERE id=?", [pCode.STATUS_SUCCESS, r.id])
.then(result => console.info(`${r.floID} converted ${r.amount} to ${r.quantity} BTC`))
.catch(error => console.error(error))
}).catch(error => console.error(error));
else if (r.mode == pCode.CONVERT_MODE_PUT)
floTokenAPI.getTx(r.out_txid).then(tx => {
if (!tx.transactionDetails.blockheight || !tx.transactionDetails.confirmations) //Still not confirmed
return;
DB.query("UPDATE DirectConvert SET r_status=? WHERE id=?", [pCode.STATUS_SUCCESS, r.id])
.then(result => console.info(`${r.floID} converted ${r.quantity} BTC to ${r.amount}`))
.catch(error => console.error(error));
}).catch(error => console.error(error));
})
}).catch(error => console.error(error));
}
function verifyConvertFundDeposit() {
DB.query("SELECT id, mode, txid, coin FROM ConvertFund WHERE r_status=? AND coin=?", [pCode.STATUS_PROCESSING, "BTC"]).then(results => {
results.forEach(r => {
if (r.mode == pCode.CONVERT_MODE_GET) { //deposit currency
verifyTx.token(floGlobals.adminID, r.txid, keys.sink_groups.CONVERT, true).then(({ amount }) => {
DB.query("UPDATE ConvertFund SET r_status=?, amount=? WHERE id=?", [pCode.STATUS_SUCCESS, amount, r.id])
.then(result => console.info(`Deposit-fund ${amount} ${floGlobals.currency} successful`))
.catch(error => console.error(error));
}).catch(error => {
console.error(error);
if (error[0])
DB.query("UPDATE ConvertFund SET r_status=? WHERE id=?", [pCode.STATUS_REJECTED, r.id])
.then(_ => null).catch(error => console.error(error));
});
} else if (r.mode == pCode.CONVERT_MODE_PUT) {//deposit coin
verifyTx.BTC(floGlobals.adminID, r.txid, keys.sink_groups.CONVERT).then(quantity => {
DB.query("UPDATE ConvertFund SET r_status=?, quantity=? WHERE id=?", [pCode.STATUS_SUCCESS, quantity, r.id])
.then(result => console.info(`Deposit-fund ${quantity} ${r.coin} successful`))
.catch(error => console.error(error));
}).catch(error => {
console.error(error);
if (error[0])
DB.query("UPDATE ConvertFund SET r_status=? WHERE id=?", [pCode.STATUS_REJECTED, r.id])
.then(_ => null).catch(error => console.error(error));
});
}
})
}).catch(error => console.error(error))
}
function retryConvertFundWithdraw() {
DB.query("SELECT id, mode, coin, quantity, amount FROM ConvertFund WHERE r_status=? AND coin=?", [pCode.STATUS_PENDING, "BTC"]).then(results => {
results.forEach(r => {
if (r.mode == pCode.CONVERT_MODE_GET) //withdraw coin
blockchain.convertFundWithdraw.retry(r.coin, r.quantity, r.id);
else if (r.mode == pCode.CONVERT_MODE_PUT) //withdraw currency
blockchain.convertFundWithdraw.retry(floGlobals.currency, r.amount, r.id);
})
}).catch(error => console.error(error))
}
function confirmConvertFundWithdraw() {
DB.query("SELECT * FROM ConvertFund WHERE r_status=? AND coin=?", [pCode.STATUS_CONFIRMATION, "BTC"]).then(results => {
results.forEach(r => {
if (r.mode == pCode.CONVERT_MODE_GET) { //withdraw coin
btcOperator.getTx(r.txid).then(tx => {
if (!tx.block || !tx.confirmations) //Still not confirmed
return;
DB.query("UPDATE ConvertFund SET r_status=? WHERE id=?", [pCode.STATUS_SUCCESS, r.id])
.then(result => console.info(`Withdraw-fund ${r.quantity} ${r.coin} successful`))
.catch(error => console.error(error))
}).catch(error => console.error(error));
} else if (r.mode == pCode.CONVERT_MODE_PUT) {//withdraw currency
floTokenAPI.getTx(r.txid).then(tx => {
if (!tx.transactionDetails.blockheight || !tx.transactionDetails.confirmations) //Still not confirmed
return;
DB.query("UPDATE ConvertFund SET r_status=? WHERE id=?", [pCode.STATUS_SUCCESS, r.id])
.then(result => console.info(`Withdraw-fund ${r.amount} ${floGlobals.currency} successful`))
.catch(error => console.error(error));
}).catch(error => console.error(error));
}
})
}).catch(error => console.error(error))
}
function verifyConvertRefund() {
DB.query("SELECT id, floID, asset_type, asset, in_txid FROM RefundConvert WHERE r_status=?", [pCode.STATUS_PENDING]).then(results => {
results.forEach(r => {
if (r.ASSET_TYPE_COIN) {
if (r.asset == "BTC") //Convert is only for BTC right now
verifyTx.BTC(r.floID, r.in_txid, keys.sink_groups.CONVERT)
.then(amount => blockchain.refundConvert.init(r.floID, r.asset, amount, r.id))
.catch(error => {
console.error(error);
if (error[0])
DB.query("UPDATE RefundConvert SET r_status=? WHERE id=?", [pCode.STATUS_REJECTED, r.id])
.then(_ => null).catch(error => console.error(error));
});
} else if (r.ASSET_TYPE_TOKEN)
verifyTx.token(r.floID, r.in_txid, keys.sink_groups.CONVERT, true).then(({ amount }) => {
blockchain.refundConvert.init(r.floID, floGlobals.currency, amount, r.id);
}).catch(error => {
console.error(error);
if (error[0])
DB.query("UPDATE RefundConvert SET r_status=? WHERE id=?", [pCode.STATUS_REJECTED, r.id])
.then(_ => null).catch(error => console.error(error));
});
})
}).catch(error => console.error(error))
}
function retryConvertRefund() {
DB.query("SELECT id, floID, asset, amount FROM RefundConvert WHERE r_status=?", [pCode.STATUS_PROCESSING]).then(results => {
results.forEach(r => blockchain.refundConvert.retry(r.floID, r.asset, r.amount, r.id))
}).catch(error => console.error(error))
}
function confirmConvertRefund() {
DB.query("SELECT * FROM RefundConvert WHERE r_status=?", [pCode.STATUS_CONFIRMATION]).then(results => {
results.forEach(r => {
if (r.ASSET_TYPE_COIN) {
if (r.asset == "BTC") //Convert is only for BTC right now
btcOperator.getTx(r.out_txid).then(tx => {
if (!tx.block || !tx.confirmations) //Still not confirmed
return;
DB.query("UPDATE RefundConvert SET r_status=? WHERE id=?", [pCode.STATUS_SUCCESS, r.id])
.then(result => console.info(`Refunded ${r.amount} ${r.asset} to ${r.floID}`))
.catch(error => console.error(error))
}).catch(error => console.error(error));
} else if (r.ASSET_TYPE_TOKEN)
floTokenAPI.getTx(r.out_txid).then(tx => {
if (!tx.transactionDetails.blockheight || !tx.transactionDetails.confirmations) //Still not confirmed
return;
DB.query("UPDATE RefundConvert SET r_status=? WHERE id=?", [pCode.STATUS_SUCCESS, r.id])
.then(result => console.info(`Refunded ${r.amount} ${r.asset} to ${r.floID}`))
.catch(error => console.error(error));
}).catch(error => console.error(error));
})
}).catch(error => console.error(error))
}
function retryBondClosing() {
DB.query("SELECT id, floID, amount, btc_net, usd_net FROM CloseBondTransact WHERE r_status=?", [pCode.STATUS_PENDING]).then(results => {
results.forEach(r => blockchain.bondTransact.retry(r.floID, r.amount, r.btc_net, r.usd_net, r.id))
}).catch(error => console.error(error))
}
function confirmBondClosing() {
DB.query("SELECT * FROM CloseBondTransact WHERE r_status=?", [pCode.STATUS_CONFIRMATION]).then(results => {
results.forEach(r => {
btcOperator.getTx(r.txid).then(tx => {
if (!tx.block || !tx.confirmations) //Still not confirmed
return;
let closeBondString = bond_util.stringify.end(r.bond_id, r.end_date, r.btc_net, r.usd_net, r.amount, r.ref_sign, r.txid);
floBlockchainAPI.writeData(keys.node_id, closeBondString, keys.node_priv, bond_util.config.adminID).then(txid => {
DB.query("UPDATE CloseBondTransact SET r_status=?, close_id=? WHERE id=?", [pCode.STATUS_SUCCESS, txid, r.id])
.then(result => console.info("Bond closed:", r.bond_id))
.catch(error => console.error(error));
}).catch(error => console.error(error))
}).catch(error => console.error(error));
})
}).catch(error => console.error(error))
}
function retryFundClosing() {
DB.query("SELECT id, floID, amount, btc_net, usd_net FROM CloseFundTransact WHERE r_status=?", [pCode.STATUS_PENDING]).then(results => {
results.forEach(r => blockchain.fundTransact.retry(r.floID, r.amount, r.btc_net, r.usd_net, r.id))
}).catch(error => console.error(error))
}
function confirmFundClosing() {
DB.query("SELECT * FROM CloseFundTransact WHERE r_status=?", [pCode.STATUS_CONFIRMATION]).then(results => {
results.forEach(r => {
btcOperator.getTx(r.txid).then(tx => {
if (!tx.block || !tx.confirmations) //Still not confirmed
return;
let closeFundString = fund_util.stringify.end(r.fund_id, r.floID, r.end_date, r.btc_net, r.usd_net, r.amount, r.ref_sign, r.txid);
floBlockchainAPI.writeData(keys.node_id, closeFundString, keys.node_priv, fund_util.config.adminID).then(txid => {
DB.query("UPDATE CloseFundTransact SET r_status=?, close_id=? WHERE id=?", [pCode.STATUS_SUCCESS, txid, r.id])
.then(result => console.info("Fund investment closed:", r.fund_id, r.floID))
.catch(error => console.error(error));
}).catch(error => console.error(error))
}).catch(error => console.error(error));
})
}).catch(error => console.error(error))
}
//Periodic Process
function processAll() {
//deposit-withdraw asset balance
if (keys.sink_chest.list(keys.sink_groups.EXCHANGE).length) {
confirmDepositFLO();
confirmDepositToken();
retryVaultWithdrawal();
confirmVaultWithdraw();
}
//convert service
if (keys.sink_chest.list(keys.sink_groups.CONVERT).length) {
verifyConvert();
retryConvert();
confirmConvert();
verifyConvertFundDeposit();
retryConvertFundWithdraw();
confirmConvertFundWithdraw();
verifyConvertRefund();
retryConvertRefund();
confirmConvertRefund();
}
//blockchain-bond service
if (keys.sink_chest.list(keys.sink_groups.BLOCKCHAIN_BONDS).length) {
retryBondClosing();
confirmBondClosing();
}
//bob's fund service
if (keys.sink_chest.list(keys.sink_groups.EXCHANGE).length) {
retryFundClosing();
confirmFundClosing();
}
}
var lastSyncBlockHeight = 0;
function periodicProcess() {
floBlockchainAPI.promisedAPI('api/status').then(result => {
let blockbook_height = result.blockbook.bestHeight;
if (lastSyncBlockHeight < blockbook_height) {
lastSyncBlockHeight = blockbook_height;
processAll();
console.log("Last Block :", lastSyncBlockHeight);
}
}).catch(error => console.error(error));
}
function periodicProcess_start() {
periodicProcess_stop();
periodicProcess();
assetList.forEach(asset => coupling.initiate(asset, true));
price.storeHistory.start();
periodicProcess.instance = setInterval(periodicProcess, PERIOD_INTERVAL);
}
function periodicProcess_stop() {
if (periodicProcess.instance !== undefined) {
clearInterval(periodicProcess.instance);
delete periodicProcess.instance;
}
coupling.stopAll();
price.storeHistory.stop();
}
module.exports = {
blockchain,
periodicProcess: {
start: periodicProcess_start,
stop: periodicProcess_stop
},
set assetList(assets) {
assetList = assets;
},
set updateBalance(f) {
updateBalance = f;
}
}

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exchangemarket/src/backup/head.js Normal file
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@ -0,0 +1,495 @@
'use strict';
const keys = require('../keys');
const K_Bucket = require('../../docs/scripts/floExchangeAPI').K_Bucket;
const slave = require('./slave');
const sync = require('./sync');
const WebSocket = require('ws');
const { BACKUP_INTERVAL } = require("../_constants")["backup"];
const { DISCARD_COOLDOWN } = require("../_constants")["keys"];
var _app, _wss, tokenList; //Container for app and wss
var nodeList, nodeURL, nodeKBucket; //Container for (backup) node list
const connectedSlaves = {},
shares_collected = {},
shares_pending = {},
discarded_sinks = [];
var _mode = null;
const SLAVE_MODE = 0,
MASTER_MODE = 1;
//Shares
function generateShares(sinkKey) {
let nextNodes = nodeKBucket.nextNode(keys.node_id, null),
aliveNodes = Object.keys(connectedSlaves);
nextNodes.unshift(keys.node_id);
aliveNodes.unshift(keys.node_id);
let shares, mappedShares = {};
shares = keys.generateShares(sinkKey, nextNodes.length, aliveNodes.length);
for (let i in nextNodes)
mappedShares[nextNodes[i]] = shares[i];
return mappedShares;
}
function sendShares(ws, sinkID) {
if (!(sinkID in shares_pending) || !(ws.floID in shares_pending[sinkID].shares))
return;
let { ref, group } = shares_pending[sinkID],
shares = shares_pending[sinkID].shares[ws.floID];
delete shares_pending[sinkID].shares[ws.floID]; //delete the share after sending it to respective slave
shares.forEach(s => ws.send(JSON.stringify({
command: "SINK_SHARE",
sinkID, ref, group,
share: floCrypto.encryptData(s, ws.pubKey)
})));
}
function sendSharesToNodes(sinkID, group, shares) {
if (discarded_sinks.includes(sinkID)) { //sinkID is discarded, abort the new shares
let i = discarded_sinks.findIndex(sinkID);
discarded_sinks.splice(i, 1);
return;
}
let ref = Date.now();
shares_pending[sinkID] = { shares, group, ref };
if (keys.node_id in shares) {
shares_pending[sinkID].shares[keys.node_id].forEach(s =>
keys.addShare(group, sinkID, ref, s).then(_ => null).catch(error => console.error(error)));
delete shares_pending[sinkID].shares[keys.node_id];
}
for (let node in shares)
if (node in connectedSlaves)
sendShares(connectedSlaves[node], sinkID);
keys.sink_chest.set_id(group, sinkID, ref);
}
function requestShare(ws, group, sinkID) {
ws.send(JSON.stringify({
command: "SEND_SHARE",
group, sinkID,
pubKey: keys.node_pub
}));
}
/*
function transferMoneyToNewSink(oldSinkID, oldSinkKey, newSink) {
const transferToken = token => new Promise((resolve, reject) => {
floTokenAPI.getBalance(oldSinkID, token).then(tokenBalance => {
floBlockchainAPI.writeData(oldSinkID, `send ${tokenBalance} ${token}# |Exchange-market New sink`, oldSinkKey, newSink.floID, false)
.then(txid => resolve(txid))
.catch(error => reject(error))
})
});
return new Promise((resolve, reject) => {
console.debug("Transferring tokens to new Sink:", newSink.floID)
Promise.allSettled(tokenList.map(token => transferToken(token))).then(result => {
let failedFlag = false;
tokenList.forEach((token, i) => {
if (result[i].status === "fulfilled")
console.log(token, result[i].value);
else {
failedFlag = true;
console.error(token, result[i].reason);
}
});
if (failedFlag)
return reject("Some token transfer has failed");
floBlockchainAPI.getBalance(oldSinkID).then(floBalance => {
floTokenAPI.getBalance(oldSinkID).then(cashBalance => {
floBlockchainAPI.sendTx(oldSinkID, newSink.floID, floBalance - floGlobals.fee, oldSinkKey, `send ${cashBalance} ${floGlobals.currency}# |Exchange-market New sink`)
.then(result => resolve(result))
.catch(error => reject(error))
}).catch(error => reject(error));
}).catch(error => reject(error))
});
})
}
*/
function collectAndCall(group, sinkID, callback, timeout = null) {
if (!(callback instanceof Function))
throw Error("callback should be a function");
if (!(sinkID in shares_collected)) { //if not already collecting shares for sinkID, then initiate collection
shares_collected[sinkID] = { group, ref: 0, callbacks: [], shares: {} };
for (let floID in connectedSlaves)
requestShare(connectedSlaves[floID], group, sinkID);
keys.getShares(group, sinkID)
.then(({ ref, shares }) => shares.forEach(s => collectShares(sinkID, ref, s)))
.catch(error => console.error(error))
}
shares_collected[sinkID].callbacks.push(callback);
if (timeout)
setTimeout(() => {
if (sinkID in shares_collected) {
let i = shares_collected[sinkID].callbacks.indexOf(callback);
delete shares_collected[sinkID].callbacks[i]; //deleting will empty the index, but space will be there so that order of other indexes are not affected
}
}, timeout);
}
collectAndCall.isAlive = (sinkID, callbackRef) => (sinkID in shares_collected && shares_collected[sinkID].callbacks.indexOf(callbackRef) != -1);
function collectShares(sinkID, ref, share) {
if (_mode !== MASTER_MODE)
return console.warn("Not serving as master");
if (!(sinkID in shares_collected))
return console.debug("Received shares for sink thats not been collected right now");
if (shares_collected[sinkID].ref > ref)
return console.debug("Received expired share");
else if (shares_collected[sinkID].ref < ref) {
shares_collected[sinkID].ref = ref;
shares_collected[sinkID].shares = [];
}
if (shares_collected[sinkID].shares.includes(share))
return console.debug("Received duplicate share");
shares_collected[sinkID].shares.push(share);
try {
let sinkKey = floCrypto.retrieveShamirSecret(shares_collected[sinkID].shares);
if (floCrypto.verifyPrivKey(sinkKey, sinkID)) {
console.debug("Shares collected successfully for", sinkID);
shares_collected[sinkID].callbacks.forEach(fn => fn instanceof Function ? fn(sinkKey) : null);
delete shares_collected[sinkID];
}
} catch {
//Unable to retrive sink private key. Waiting for more shares! Do nothing for now
};
}
function connectWS(floID) {
let url = nodeURL[floID];
return new Promise((resolve, reject) => {
const ws = new WebSocket('wss://' + url);
ws.on('open', _ => resolve(ws));
ws.on('error', error => reject(error));
})
}
function connectToMaster(i = 0, init = false) {
if (i >= nodeList.length) {
console.error("No master is found and Node not in list. This should not happen!");
process.exit(1);
}
let floID = nodeList[i];
if (floID === keys.node_id)
serveAsMaster(init);
else
connectWS(floID).then(ws => {
ws.floID = floID;
ws.onclose = () => connectToMaster(i);
serveAsSlave(ws, init);
}).catch(error => {
console.log(`Node(${floID}) is offline`);
connectToMaster(i + 1, init)
});
}
function informLiveNodes(init) {
let message = {
floID: keys.node_id,
type: "UPDATE_MASTER",
pubKey: keys.node_pub,
req_time: Date.now()
};
message.sign = floCrypto.signData(message.type + "|" + message.req_time, keys.node_priv);
message = JSON.stringify(message);
let nodes = nodeList.filter(n => n !== keys.node_id);
Promise.allSettled(nodes.map(n => connectWS(n))).then(result => {
let flag = false;
for (let i in result)
if (result[i].status === "fulfilled") {
let ws = result[i].value;
ws.send(message);
ws.close();
flag = true;
} else
console.warn(`Node(${nodes[i]}) is offline`);
if (init && flag)
syncRequest();
keys.getStoredList().then(stored_list => {
if (Object.keys(stored_list).length) {
keys.getDiscardedList().then(discarded_list => {
let cur_time = Date.now();
for (let group in stored_list)
stored_list[group].forEach(id => {
if (!(id in discarded_list))
reconstructShares(group, id)
else if (cur_time - discarded_list[id] < DISCARD_COOLDOWN) //sinkID still in cooldown period
keys.sink_chest.set_id(group, id, null);
});
}).catch(error => console.error(error))
} else if (init && !flag) {
console.log("Starting the exchange...");
//generate a sinkID for each group in starting list
keys.sink_groups.initial_list.forEach(group =>
generateSink(group).then(_ => null).catch(e => console.error(e)));
}
}).catch(error => console.error(error));
});
}
function syncRequest(cur = keys.node_id) {
//Sync data from next available node
let nextNode = nodeKBucket.nextNode(cur);
if (!nextNode)
return console.warn("No nodes available to Sync");
connectWS(nextNode)
.then(ws => slave.syncRequest(ws))
.catch(_ => syncRequest(nextNode));
}
function updateMaster(floID) {
let currentMaster = _mode === MASTER_MODE ? keys.node_id : slave.masterWS.floID;
if (nodeList.indexOf(floID) < nodeList.indexOf(currentMaster))
connectToMaster();
}
function reconstructAllActiveShares() {
if (_mode !== MASTER_MODE)
return console.debug("Not serving as master");
console.debug("Reconstructing shares for all active IDs")
let group_list = keys.sink_groups.list;
group_list.forEach(g => {
//active ids also ignore ids that are in queue for reconstructing shares
let active_ids = keys.sink_chest.active_list(g);
active_ids.forEach(id => reconstructShares(g, id));
});
}
function reconstructShares(group, sinkID) {
if (_mode !== MASTER_MODE)
return console.warn(`Not serving as master, but reconstruct-shares is called for ${sinkID}(${group})`);
keys.sink_chest.set_id(group, sinkID, null);
collectAndCall(group, sinkID, sinkKey => sendSharesToNodes(sinkID, group, generateShares(sinkKey)));
}
function slaveConnect(floID, pubKey, ws, slave_sinks) {
if (_mode !== MASTER_MODE)
return console.warn("Not serving as master");
ws.floID = floID;
ws.pubKey = pubKey;
connectedSlaves[floID] = ws;
//Send shares if need to be delivered
for (let sinkID in shares_pending)
if (floID in shares_pending[sinkID].shares)
sendShares(ws, sinkID);
//Request shares if any
for (let sinkID in shares_collected)
requestShare(ws, shares_collected[sinkID].group, sinkID);
//check if sinks in slaves are present
if (slave_sinks instanceof Object) {
for (let group in slave_sinks)
for (let sinkID of slave_sinks[group]) {
if (!keys.sink_chest.includes(group, sinkID))
keys.checkIfDiscarded(sinkID)
.then(result => result === false ? reconstructShares(group, sinkID) : null)
.catch(error => console.error(error))
}
}
}
const eCode = require('../../docs/scripts/floExchangeAPI').errorCode;
function generateSink(group) {
return new Promise((resolve, reject) => {
if (!keys.sink_groups.generate_list.includes(group))
return reject(INVALID(eCode.INVALID_VALUE, `Invalid Group ${group}`));
try {
let newSink = floCrypto.generateNewID();
console.debug("Generated sink:", group, newSink.floID);
sendSharesToNodes(newSink.floID, group, generateShares(newSink.privKey));
resolve(`Generated ${newSink.floID} (${group})`);
} catch (error) {
reject(error)
}
})
}
function reshareSink(id) {
return new Promise((resolve, reject) => {
if (!floCrypto.validateAddr(id))
return reject(INVALID(eCode.INVALID_VALUE, `Invalid ID ${id}`));
else {
let group = keys.sink_chest.find_group(id);
if (!group)
return reject(INVALID(eCode.NOT_FOUND, `ID ${id} not found`));
else keys.checkIfDiscarded(id).then(result => {
if (result)
return reject(INVALID(eCode.NOT_FOUND, `ID is discarded`));
try {
reconstructShares(group, id);
resolve(`Resharing ${id} (${group})`);
} catch (error) {
reject(error);
}
}).catch(error => reject(error))
}
})
}
function discardSink(id) {
return new Promise((resolve, reject) => {
if (!floCrypto.validateAddr(id))
return reject(INVALID(eCode.INVALID_VALUE, `Invalid ID ${id}`));
else if (!keys.sink_chest.find_group(id))
return reject(INVALID(eCode.NOT_FOUND, `ID ${id} not found`));
else keys.checkIfDiscarded(id).then(result => {
if (result)
return reject(INVALID(eCode.DUPLICATE_ENTRY, `ID already discarded`));
keys.discardSink(id).then(result => {
console.debug("Discarded sink:", id);
resolve(result);
}).catch(error => reject(error))
}).catch(error => reject(error))
})
}
function checkForDiscardedSinks() {
let cur_time = Date.now(),
all_sinks = keys.sink_chest.get_all();
for (let group in all_sinks)
all_sinks[group].forEach(id => keys.checkIfDiscarded(id).then(result => {
console.debug(group, id); //Check if group is correctly mapped, or if its changed by loop
if (result != false) {
if (cur_time - result > DISCARD_COOLDOWN)
keys.sink_chest.rm_id(group, id);
else
keys.sink_chest.set_id(group, id, null);
if (id in shares_collected && !discarded_sinks.includes(id))
discarded_sinks.push(id);
}
}).catch(error => console.debug(error)))
}
//Master interval process
function intervalProcess() {
checkForDiscardedSinks();
}
intervalProcess.start = () => {
intervalProcess.stop();
intervalProcess.instance = setInterval(intervalProcess, BACKUP_INTERVAL);
}
intervalProcess.stop = () => {
if (intervalProcess.instance !== undefined) {
clearInterval(intervalProcess.instance);
delete intervalProcess.instance;
}
}
//Node becomes master
function serveAsMaster(init) {
console.info('Starting master process');
slave.stop();
_mode = MASTER_MODE;
keys.sink_chest.reset();
intervalProcess.start();
informLiveNodes(init);
_app.resume();
}
//Node becomes slave
function serveAsSlave(ws, init) {
console.info('Starting slave process');
intervalProcess.stop();
_app.pause();
slave.start(ws, init);
_mode = SLAVE_MODE;
}
//Transmistter
function startBackupTransmitter(server) {
_wss = new WebSocket.Server({
server
});
_wss.on('connection', ws => {
ws.on('message', message => {
//verify if from a backup node
try {
let invalid = null,
request = JSON.parse(message);
//console.debug(request);
if (!nodeList.includes(request.floID))
invalid = `floID ${request.floID} not in nodeList`;
else if (request.floID !== floCrypto.getFloID(request.pubKey))
invalid = "Invalid pubKey";
else if (!floCrypto.verifySign(request.type + "|" + request.req_time, request.sign, request.pubKey))
invalid = "Invalid signature";
//TODO: check if request time is valid;
else switch (request.type) {
case "BACKUP_SYNC":
sync.sendBackupData(request.last_time, request.checksum, ws);
break;
case "HASH_SYNC":
sync.sendTableHash(request.tables, ws);
break;
case "RE_SYNC":
sync.sendTableData(request.tables, ws);
break;
case "UPDATE_MASTER":
updateMaster(request.floID);
break;
case "SLAVE_CONNECT":
slaveConnect(request.floID, request.pubKey, ws, request.sinks);
break;
case "SINK_SHARE":
collectShares(request.sinkID, request.ref, floCrypto.decryptData(request.share, keys.node_priv))
default:
invalid = "Invalid Request Type";
}
if (invalid)
ws.send(JSON.stringify({
type: request.type,
command: "REQUEST_ERROR",
error: invalid
}));
} catch (error) {
console.error(error);
ws.send(JSON.stringify({
command: "REQUEST_ERROR",
error: 'Unable to process the request!'
}));
}
});
ws.on('close', () => {
// remove from connected slaves (if needed)
if (ws.floID in connectedSlaves)
delete connectedSlaves[ws.floID];
})
});
}
function initProcess(app) {
_app = app;
startBackupTransmitter(_app.server);
connectToMaster(0, true);
}
module.exports = {
init: initProcess,
collectAndCall,
reconstructAllActiveShares,
sink: {
generate: generateSink,
reshare: reshareSink,
discard: discardSink
},
set nodeList(list) {
nodeURL = list;
nodeKBucket = new K_Bucket(floGlobals.adminID, Object.keys(nodeURL));
nodeList = nodeKBucket.order;
},
get nodeList() {
return nodeList;
},
set assetList(assets) {
tokenList = assets.filter(a => a.toUpperCase() !== "FLO");
},
get wss() {
return _wss;
}
};

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'use strict';
const keys = require("../keys");
const DB = require("../database");
const { getTableHashes } = require("./sync");
const {
BACKUP_INTERVAL,
BACKUP_SYNC_TIMEOUT,
CHECKSUM_INTERVAL,
HASH_N_ROW
} = require("../_constants")["backup"];
var masterWS = null; //Container for Master websocket connection
var intervalID = null;
function startSlaveProcess(ws, init) {
if (!ws) throw Error("Master WS connection required");
//stop existing process
stopSlaveProcess();
//set masterWS
ws.on('message', processDataFromMaster);
masterWS = ws;
let sinks_stored = {};
Promise.all([keys.getStoredList(), keys.getDiscardedList()]).then(result => {
let stored_list = result[0],
discarded_list = result[1];
for (let group in stored_list) {
sinks_stored[group] = [];
for (let id of stored_list[group])
if (!(id in discarded_list))
sinks_stored[group].push(id);
}
}).catch(error => console.error(error)).finally(_ => {
//inform master
let message = {
floID: keys.node_id,
pubKey: keys.node_pub,
sinks: sinks_stored,
req_time: Date.now(),
type: "SLAVE_CONNECT"
}
message.sign = floCrypto.signData(message.type + "|" + message.req_time, keys.node_priv);
ws.send(JSON.stringify(message));
//start sync
if (init)
requestInstance.open();
intervalID = setInterval(() => requestInstance.open(), BACKUP_INTERVAL);
})
}
function stopSlaveProcess() {
if (masterWS !== null) {
masterWS.onclose = () => null;
masterWS.close();
requestInstance.close();
masterWS = null;
}
if (intervalID !== null) {
clearInterval(intervalID);
intervalID = null;
}
}
function requestBackupSync(checksum_trigger, ws) {
return new Promise((resolve, reject) => {
DB.query('SELECT MAX(u_time) as last_time FROM _backup').then(result => {
let request = {
floID: keys.node_id,
pubKey: keys.node_pub,
type: "BACKUP_SYNC",
last_time: result[0].last_time,
checksum: checksum_trigger,
req_time: Date.now()
};
request.sign = floCrypto.signData(request.type + "|" + request.req_time, keys.node_priv);
ws.send(JSON.stringify(request));
resolve(request);
}).catch(error => reject(error))
})
}
const requestInstance = {
ws: null,
cache: null,
checksum: null,
delete_data: null,
add_data: null,
request: null,
onetime: null,
last_response_time: null,
checksum_count_down: 0
};
requestInstance.open = function (ws = null) {
const self = this;
//Check if there is an active request
if (self.request) {
console.log("A request is already active");
if (self.last_response_time < Date.now() - BACKUP_SYNC_TIMEOUT)
self.close();
else
return;
}
//Use websocket connection if passed, else use masterWS if available
if (ws) {
ws.on('message', processDataFromMaster);
self.onetime = true;
} else if (masterWS)
ws = masterWS;
else return console.warn("Not connected to master");
requestBackupSync(!self.checksum_count_down || self.onetime, ws).then(request => {
self.request = request;
self.cache = [];
self.last_response_time = Date.now();
self.ws = ws;
}).catch(error => console.error(error))
}
requestInstance.close = function () {
const self = this;
if (self.onetime)
self.ws.close();
else
self.checksum_count_down = self.checksum_count_down ? self.checksum_count_down - 1 : CHECKSUM_INTERVAL;
self.onetime = null;
self.ws = null;
self.cache = null;
self.checksum = null;
self.delete_data = null;
self.add_data = null;
self.request = null;
self.last_response_time = null;
}
function processDataFromMaster(message) {
try {
message = JSON.parse(message);
//console.debug("Master:", message);
if (message.command.startsWith("SYNC"))
processBackupData(message);
else switch (message.command) {
case "SINK_SHARE":
storeSinkShare(message.group, message.sinkID, message.share, message.ref);
break;
case "SEND_SHARE":
sendSinkShare(message.group, message.sinkID, message.pubKey);
break;
case "REQUEST_ERROR":
console.log(message.error);
if (message.type === "BACKUP_SYNC")
requestInstance.close();
break;
}
} catch (error) {
console.error(error);
}
}
function storeSinkShare(group, sinkID, share, ref) {
share = floCrypto.decryptData(share, keys.node_priv);
keys.addShare(group, sinkID, ref, share)
.then(_ => null).catch(error => console.error(error));
}
function sendSinkShare(group, sinkID, pubKey) {
keys.getShares(group, sinkID).then(({ ref, shares }) => {
shares.forEach(s => {
let response = {
type: "SINK_SHARE",
sinkID, ref,
share: floCrypto.encryptData(s, pubKey),
floID: keys.node_id,
pubKey: keys.node_pub,
req_time: Date.now()
}
response.sign = floCrypto.signData(response.type + "|" + response.req_time, keys.node_priv); //TODO: strengthen signature
masterWS.send(JSON.stringify(response));
})
}).catch(error => console.error(error));
}
function processBackupData(response) {
//TODO: Sync improvements needed. (2 types)
//1. Either sync has to be completed or rollback all
//2. Each table/data should be treated as independent chunks
const self = requestInstance;
self.last_response_time = Date.now();
switch (response.command) {
case "SYNC_END":
if (response.status) {
storeBackupData(self.cache, self.checksum).then(result => {
updateBackupTable(self.add_data, self.delete_data);
if (result) {
console.log("Backup Sync completed successfully");
self.close();
} else
console.log("Waiting for re-sync data");
}).catch(_ => {
console.warn("Backup Sync was not successful");
self.close();
});
} else {
console.info("Backup Sync was not successful! Failed info: ", response.info);
self.close();
}
break;
case "SYNC_DELETE":
self.delete_data = response.delete_data;
self.cache.push(cacheBackupData(null, response.delete_data));
break;
case "SYNC_HEADER":
self.add_data = response.add_data;
break;
case "SYNC_UPDATE":
self.cache.push(cacheBackupData(response.table, response.data));
break;
case "SYNC_CHECKSUM":
self.checksum = response.checksum;
break;
case "SYNC_HASH":
verifyHash(response.hashes)
.then(mismatch => requestTableChunks(mismatch, self.ws))
.catch(error => {
console.error(error);
self.close();
});
break;
}
}
const cacheBackupData = (tableName, dataCache) => new Promise((resolve, reject) => {
DB.query("INSERT INTO _backupCache (t_name, data_cache) VALUE (?, ?)", [tableName, JSON.stringify(dataCache)])
.then(_ => resolve(true)).catch(error => {
console.error(error);
reject(false);
})
});
function storeBackupData(cache_promises, checksum_ref) {
return new Promise((resolve, reject) => {
Promise.allSettled(cache_promises).then(_ => {
console.log("START: BackupCache -> Tables");
//Process 'Users' table 1st as it provides foreign key attribute to other tables
DB.query("SELECT * FROM _backupCache WHERE t_name=?", ["Users"]).then(data => {
Promise.allSettled(data.map(d => updateTableData("Users", JSON.parse(d.data_cache)))).then(result => {
storeBackupData.commit(data, result).then(_ => {
DB.query("SELECT * FROM _backupCache WHERE t_name IS NOT NULL").then(data => {
Promise.allSettled(data.map(d => updateTableData(d.t_name, JSON.parse(d.data_cache)))).then(result => {
storeBackupData.commit(data, result).then(_ => {
DB.query("SELECT * FROM _backupCache WHERE t_name IS NULL").then(data => {
Promise.allSettled(data.map(d => deleteTableData(JSON.parse(d.data_cache)))).then(result => {
storeBackupData.commit(data, result).then(_ => {
console.log("END: BackupCache -> Tables");
if (!checksum_ref) //No checksum verification
resolve(true);
else
verifyChecksum(checksum_ref)
.then(result => resolve(result))
.catch(error => reject(error))
});
})
})
})
})
}).catch(error => {
console.error(error);
console.warn("ABORT: BackupCache -> Tables");
reject(false);
});
})
})
}).catch(error => {
console.error(error);
console.warn("ABORT: BackupCache -> Tables");
reject(false);
})
})
})
}
storeBackupData.commit = function (data, result) {
let promises = [];
for (let i = 0; i < data.length; i++)
switch (result[i].status) {
case "fulfilled":
promises.push(DB.query("DELETE FROM _backupCache WHERE id=?", data[i].id));
break;
case "rejected":
console.error(result[i].reason);
promises.push(DB.query("UPDATE _backupCache SET fail=TRUE WHERE id=?", data[i].id));
break;
}
return Promise.allSettled(promises);
}
function updateBackupTable(add_data, delete_data) {
//update _backup table for added data
DB.transaction(add_data.map(r => [
"INSERT INTO _backup (t_name, id, mode, u_time) VALUE (?, ?, TRUE, ?) ON DUPLICATE KEY UPDATE mode=TRUE, u_time=?",
[r.t_name, r.id, validateValue(r.u_time), validateValue(r.u_time)]
])).then(_ => null).catch(error => console.error(error));
//update _backup table for deleted data
DB.transaction(delete_data.map(r => [
"INSERT INTO _backup (t_name, id, mode, u_time) VALUE (?, ?, NULL, ?) ON DUPLICATE KEY UPDATE mode=NULL, u_time=?",
[r.t_name, r.id, validateValue(r.u_time), validateValue(r.u_time)]
])).then(_ => null).catch(error => console.error(error));
}
function deleteTableData(data) {
return new Promise((resolve, reject) => {
let delete_needed = {};
data.forEach(r => r.t_name in delete_needed ? delete_needed[r.t_name].push(r.id) : delete_needed[r.t_name] = [r.id]);
let queries = [];
for (let table in delete_needed)
queries.push(["DELETE FROM ?? WHERE id IN (?)", [table, delete_needed[table]]]);
DB.transaction(queries).then(_ => resolve(true)).catch(error => reject(error));
})
}
function updateTableData(table, data) {
return new Promise((resolve, reject) => {
if (!data.length)
return resolve(null);
let cols = Object.keys(data[0]);
let values = data.map(r => cols.map(c => validateValue(r[c])));
let statement = "INSERT INTO ?? (??) VALUES ? ON DUPLICATE KEY UPDATE " + Array(cols.length).fill("??=VALUES(??)").join();
let query_values = [table, cols, values];
cols.forEach(c => query_values.push(c, c));
DB.query(statement, query_values).then(_ => resolve(true)).catch(error => reject(error));
})
}
const validateValue = val => (typeof val === "string" && /\.\d{3}Z$/.test(val)) ? new Date(val) : val;
function verifyChecksum(checksum_ref) {
return new Promise((resolve, reject) => {
DB.query("CHECKSUM TABLE ??", [Object.keys(checksum_ref)]).then(result => {
let checksum = Object.fromEntries(result.map(r => [r.Table.split(".").pop(), r.Checksum]));
let mismatch = [];
for (let table in checksum)
if (checksum[table] != checksum_ref[table])
mismatch.push(table);
//console.debug("Checksum-mismatch:", mismatch);
if (!mismatch.length) //Checksum of every table is verified.
resolve(true);
else { //If one or more tables checksum is not correct, re-request the table data
requestHash(mismatch);
resolve(false);
}
}).catch(error => {
console.error(error);
reject(false);
})
})
}
function requestHash(tables) {
//TODO: resync only necessary data (instead of entire table)
let self = requestInstance;
let request = {
floID: keys.node_id,
pubKey: keys.node_pub,
type: "HASH_SYNC",
tables: tables,
req_time: Date.now()
};
request.sign = floCrypto.signData(request.type + "|" + request.req_time, keys.node_priv);
self.ws.send(JSON.stringify(request));
self.request = request;
self.checksum = null;
self.cache = [];
}
function verifyHash(hashes) {
const convertIntArray = obj => Object.keys(obj).map(i => parseInt(i));
const checkHash = (table, hash_ref) => new Promise((res, rej) => {
getTableHashes(table).then(hash_cur => {
for (let i in hash_ref)
if (hash_ref[i] === hash_cur[i]) {
delete hash_ref[i];
delete hash_cur[i];
}
res([convertIntArray(hash_ref), convertIntArray(hash_cur)]);
}).catch(error => rej(error))
})
return new Promise((resolve, reject) => {
let tables = Object.keys(hashes);
Promise.allSettled(tables.map(t => checkHash(t, hashes[t]))).then(result => {
let mismatch = {};
for (let t in tables)
if (result[t].status === "fulfilled") {
mismatch[tables[t]] = result[t].value; //Data that are incorrect/missing/deleted
//Data to be deleted (incorrect data will be added by resync)
let id_end = result[t].value[1].map(i => i * HASH_N_ROW); //eg if i=2 AND H_R_C = 5 then id_end = 2 * 5 = 10 (ie, range 6-10)
Promise.allSettled(id_end.map(i =>
DB.query("DELETE FROM ?? WHERE id BETWEEN ? AND ?", [tables[t], i - HASH_N_ROW + 1, i]) //eg, i - HASH_N_ROW + 1 = 10 - 5 + 1 = 6
)).then(_ => null);
} else
console.error(result[t].reason);
//console.debug("Hash-mismatch", mismatch);
resolve(mismatch);
}).catch(error => reject(error))
})
}
function requestTableChunks(tables, ws) {
let request = {
floID: keys.node_id,
pubKey: keys.node_pub,
type: "RE_SYNC",
tables: tables,
req_time: Date.now()
};
request.sign = floCrypto.signData(request.type + "|" + request.req_time, keys.node_priv);
ws.send(JSON.stringify(request));
}
module.exports = {
get masterWS() {
return masterWS;
},
start: startSlaveProcess,
stop: stopSlaveProcess,
syncRequest: ws => requestInstance.open(ws)
}

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'use strict';
const DB = require("../database");
const {
HASH_N_ROW
} = require("../_constants")["backup"];
//Backup Transfer
function sendBackupData(last_time, checksum, ws) {
if (!last_time) last_time = 0;
else if (typeof last_time === "string" && /\.\d{3}Z$/.test(last_time))
last_time = last_time.substring(0, last_time.length - 1);
let promises = [
backupSync_data(last_time, ws),
backupSync_delete(last_time, ws)
];
if (checksum)
promises.push(backupSync_checksum(ws));
Promise.allSettled(promises).then(result => {
let failedSync = [];
result.forEach(r => r.status === "rejected" ? failedSync.push(r.reason) : null);
if (failedSync.length) {
console.info("Backup Sync Failed:", failedSync);
ws.send(JSON.stringify({
command: "SYNC_END",
status: false,
info: failedSync
}));
} else {
console.info("Backup Sync completed");
ws.send(JSON.stringify({
command: "SYNC_END",
status: true
}));
}
});
}
function backupSync_delete(last_time, ws) {
return new Promise((resolve, reject) => {
DB.query("SELECT * FROM _backup WHERE mode is NULL AND u_time > ?", [last_time]).then(result => {
ws.send(JSON.stringify({
command: "SYNC_DELETE",
delete_data: result
}));
resolve("deleteSync");
}).catch(error => {
console.error(error);
reject("deleteSync");
});
})
}
function backupSync_data(last_time, ws) {
const sendTable = (table, id_list) => new Promise((res, rej) => {
DB.query("SELECT * FROM ?? WHERE id IN (?)", [table, id_list])
.then(data => {
ws.send(JSON.stringify({
table,
command: "SYNC_UPDATE",
data
}));
res(table);
}).catch(error => {
console.error(error);
rej(table);
});
});
return new Promise((resolve, reject) => {
DB.query("SELECT * FROM _backup WHERE mode=TRUE AND u_time > ?", [last_time]).then(result => {
let sync_needed = {};
result.forEach(r => r.t_name in sync_needed ? sync_needed[r.t_name].push(r.id) : sync_needed[r.t_name] = [r.id]);
ws.send(JSON.stringify({
command: "SYNC_HEADER",
add_data: result
}));
let promises = [];
for (let table in sync_needed)
promises.push(sendTable(table, sync_needed[table]));
Promise.allSettled(promises).then(result => {
let failedTables = [];
result.forEach(r => r.status === "rejected" ? failedTables.push(r.reason) : null);
if (failedTables.length)
reject(["dataSync", failedTables]);
else
resolve("dataSync");
});
}).catch(error => {
console.error(error);
reject("dataSync");
});
});
}
function backupSync_checksum(ws) {
return new Promise((resolve, reject) => {
DB.query("SELECT DISTINCT t_name FROM _backup").then(result => {
let tableList = result.map(r => r['t_name']);
if (!tableList.length)
return resolve("checksum");
DB.query("CHECKSUM TABLE ??", [tableList]).then(result => {
let checksum = Object.fromEntries(result.map(r => [r.Table.split(".").pop(), r.Checksum]));
ws.send(JSON.stringify({
command: "SYNC_CHECKSUM",
checksum: checksum
}));
resolve("checksum");
}).catch(error => {
console.error(error);
reject("checksum");
})
}).catch(error => {
console.error(error);
reject("checksum");
})
})
}
function sendTableHash(tables, ws) {
Promise.allSettled(tables.map(t => getTableHashes(t))).then(result => {
let hashes = {};
for (let i in tables)
if (result[i].status === "fulfilled")
hashes[tables[i]] = result[i].value;
else
console.error(result[i].reason);
ws.send(JSON.stringify({
command: "SYNC_HASH",
hashes: hashes
}));
})
}
function getTableHashes(table) {
return new Promise((resolve, reject) => {
DB.query("SHOW COLUMNS FROM ??", [table]).then(result => {
//columns
let columns = result.map(r => r["Field"]).sort();
//select statement
let statement = "SELECT CEIL(id/?) as group_id,";
let query_values = [HASH_N_ROW];
//aggregate column values
let col_aggregate = columns.map(c => "IFNULL(CRC32(??), 0)").join('+');
columns.forEach(c => query_values.push(c));
//aggregate rows via group by
statement += " SUM(CRC32(MD5(" + col_aggregate + "))) as hash FROM ?? GROUP BY group_id ORDER BY group_id";
query_values.push(table);
//query
DB.query(statement, query_values)
.then(result => resolve(Object.fromEntries(result.map(r => [r.group_id, r.hash]))))
.catch(error => reject(error))
}).catch(error => reject(error))
})
}
function sendTableData(tables, ws) {
let promises = [
tableSync_data(tables, ws),
tableSync_delete(tables, ws),
tableSync_checksum(Object.keys(tables), ws)
];
Promise.allSettled(promises).then(result => {
let failedSync = [];
result.forEach(r => r.status === "rejected" ? failedSync.push(r.reason) : null);
if (failedSync.length) {
console.info("Backup Sync Failed:", failedSync);
ws.send(JSON.stringify({
command: "SYNC_END",
status: false,
info: failedSync
}));
} else {
console.info("Backup Sync completed");
ws.send(JSON.stringify({
command: "SYNC_END",
status: true
}));
}
});
}
function tableSync_delete(tables, ws) {
let getDelete = (table, group_id) => new Promise((res, rej) => {
let id_end = group_id * HASH_N_ROW,
id_start = id_end - HASH_N_ROW + 1;
DB.query("SELECT * FROM _backup WHERE t_name=? AND mode is NULL AND (id BETWEEN ? AND ?)", [table, id_start, id_end])
.then(result => res(result))
.catch(error => rej(error))
})
return new Promise((resolve, reject) => {
let promises = [];
for (let t in tables)
for (let g_id in tables[t][1]) //tables[t] is [convertIntArray(hash_ref), convertIntArray(hash_cur)]
promises.push(getDelete(t, g_id));
Promise.allSettled(promises).then(results => {
let delete_sync = results.filter(r => r.status === "fulfilled").map(r => r.value); //Filtered results
delete_sync = [].concat(...delete_sync); //Convert 2d array into 1d
ws.send(JSON.stringify({
command: "SYNC_DELETE",
delete_data: delete_sync
}));
resolve("deleteSync");
});
})
}
function tableSync_data(tables, ws) {
const sendTable = (table, group_id) => new Promise((res, rej) => {
let id_end = group_id * HASH_N_ROW,
id_start = id_end - HASH_N_ROW + 1;
DB.query("SELECT * FROM ?? WHERE id BETWEEN ? AND ?", [table, id_start, id_end]).then(data => {
ws.send(JSON.stringify({
table,
command: "SYNC_UPDATE",
data
}));
res(table);
}).catch(error => {
console.error(error);
rej(table);
});
});
const getUpdate = (table, group_id) => new Promise((res, rej) => {
let id_end = group_id * HASH_N_ROW,
id_start = id_end - HASH_N_ROW + 1;
DB.query("SELECT * FROM _backup WHERE t_name=? AND mode=TRUE AND (id BETWEEN ? AND ?)", [table, id_start, id_end])
.then(result => res(result))
.catch(error => rej(error))
})
return new Promise((resolve, reject) => {
let promises = [];
for (let t in tables)
for (let g_id of tables[t][0]) //tables[t] is [convertIntArray(hash_ref), convertIntArray(hash_cur)]
promises.push(getUpdate(t, g_id));
Promise.allSettled(promises).then(results => {
let update_sync = results.filter(r => r.status === "fulfilled").map(r => r.value); //Filtered results
update_sync = [].concat(...update_sync); //Convert 2d array into 1d
ws.send(JSON.stringify({
command: "SYNC_HEADER",
add_data: update_sync
}));
let promises = [];
for (let t in tables)
for (let g_id of tables[t][0]) //tables[t] is [convertIntArray(hash_ref), convertIntArray(hash_cur)]
promises.push(sendTable(t, g_id));
Promise.allSettled(promises).then(result => {
let failedTables = [];
result.forEach(r => r.status === "rejected" ? failedTables.push(r.reason) : null);
if (failedTables.length)
reject(["dataSync", [...new Set(failedTables)]]);
else
resolve("dataSync");
});
});
})
}
function tableSync_checksum(tables, ws) {
return new Promise((resolve, reject) => {
DB.query("CHECKSUM TABLE ??", [tables]).then(result => {
let checksum = Object.fromEntries(result.map(r => [r.Table.split(".").pop(), r.Checksum]));
ws.send(JSON.stringify({
command: "SYNC_CHECKSUM",
checksum: checksum
}));
resolve("checksum");
}).catch(error => {
console.error(error);
reject("checksum");
})
})
}
module.exports = {
getTableHashes,
sendBackupData,
sendTableHash,
sendTableData
}

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exchangemarket/src/blockchain.js Normal file
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'use strict';
const pCode = require('../docs/scripts/floExchangeAPI').processCode;
const { collectAndCall } = require('./backup/head');
const keys = require('./keys');
const DB = require("./database");
const TYPE_VAULT = "VAULT",
TYPE_CONVERT = "CONVERT",
TYPE_CONVERT_POOL = "CONVERT_POOL",
TYPE_CONVERT_REFUND = "REFUND",
TYPE_BLOCKCHAIN_BOND = "BOND",
TYPE_BOBS_FUND = "BOB-FUND";
const SINK_GROUP = {
[TYPE_VAULT]: keys.sink_groups.EXCHANGE,
[TYPE_CONVERT]: keys.sink_groups.CONVERT,
[TYPE_CONVERT_POOL]: keys.sink_groups.CONVERT,
[TYPE_CONVERT_REFUND]: keys.sink_groups.CONVERT,
[TYPE_BLOCKCHAIN_BOND]: keys.sink_groups.BLOCKCHAIN_BONDS,
[TYPE_BOBS_FUND]: keys.sink_groups.BOBS_FUND
}
const balance_locked = {},
balance_cache = {},
callbackCollection = {
[TYPE_VAULT]: {},
[TYPE_CONVERT]: {},
[TYPE_CONVERT_POOL]: {},
[TYPE_CONVERT_REFUND]: {},
[TYPE_BLOCKCHAIN_BOND]: {},
[TYPE_BOBS_FUND]: {}
};
function getBalance(sinkID, asset) {
switch (asset) {
case "FLO":
return floBlockchainAPI.getBalance(sinkID);
case "BTC":
let btc_id = btcOperator.convert.legacy2bech(sinkID);
return btcOperator.getBalance(btc_id);
default:
return floTokenAPI.getBalance(sinkID, asset);
}
}
function getSinkID(type, quantity, asset, sinkList = null) {
return new Promise((resolve, reject) => {
if (!sinkList)
sinkList = keys.sink_chest.list(SINK_GROUP[type]).map(s => [s, s in balance_cache ? balance_cache[s][asset] || 0 : 0]) //TODO: improve sorting
.sort((a, b) => b[1] - a[1]).map(x => x[0]);
if (!sinkList.length)
return reject(`Insufficient balance for asset(${asset}) in chest(${SINK_GROUP[type]})`);
let sinkID = sinkList.shift();
getBalance(sinkID, asset).then(balance => {
if (!(sinkID in balance_cache))
balance_cache[sinkID] = {};
balance_cache[sinkID][asset] = balance;
if (balance > (quantity + (sinkID in balance_locked ? balance_locked[sinkID][asset] || 0 : 0)))
return resolve(sinkID);
else
getSinkID(type, quantity, asset, sinkList)
.then(result => resolve(result))
.catch(error => reject(error))
}).catch(error => {
console.error(error);
getSinkID(type, quantity, asset, sinkList)
.then(result => resolve(result))
.catch(error => reject(error))
});
})
}
const WITHDRAWAL_MESSAGE = {
[TYPE_VAULT]: "(withdrawal from market)",
[TYPE_CONVERT]: "(convert coin)",
[TYPE_CONVERT_POOL]: "(convert fund)",
[TYPE_CONVERT_REFUND]: "(refund from market)",
[TYPE_BLOCKCHAIN_BOND]: "(bond closing)",
[TYPE_BOBS_FUND]: "(fund investment closing)"
}
function sendTx(floID, asset, quantity, sinkID, sinkKey, message) {
switch (asset) {
case "FLO":
return floBlockchainAPI.sendTx(sinkID, floID, quantity, sinkKey, message);
case "BTC":
let btc_sinkID = btcOperator.convert.legacy2bech(sinkID),
btc_receiver = btcOperator.convert.legacy2bech(floID);
return btcOperator.sendTx(btc_sinkID, sinkKey, btc_receiver, quantity, null, { fee_from_receiver: true });
default:
return floTokenAPI.sendToken(sinkKey, quantity, floID, message, asset);
}
}
const updateSyntax = {
[TYPE_VAULT]: "UPDATE VaultTransactions SET r_status=?, txid=? WHERE id=?",
[TYPE_CONVERT]: "UPDATE DirectConvert SET r_status=?, out_txid=? WHERE id=?",
[TYPE_CONVERT_POOL]: "UPDATE ConvertFund SET r_status=?, txid=? WHERE id=?",
[TYPE_CONVERT_REFUND]: "UPDATE RefundConvert SET r_status=?, out_txid=? WHERE id=?",
[TYPE_BLOCKCHAIN_BOND]: "UPDATE CloseBondTransact SET r_status=?, txid=? WHERE id=?",
[TYPE_BOBS_FUND]: "UPDATE CloseFundTransact SET r_status=?, txid=? WHERE id=?"
};
function sendAsset(floID, asset, quantity, type, id) {
quantity = global.toStandardDecimal(quantity);
getSinkID(type, quantity, asset).then(sinkID => {
let callback = (sinkKey) => {
//Send asset to user via API
sendTx(floID, asset, quantity, sinkID, sinkKey, WITHDRAWAL_MESSAGE[type]).then(txid => {
if (!txid)
console.error("Transaction not successful");
else //Transaction was successful, Add in database
DB.query(updateSyntax[type], [pCode.STATUS_CONFIRMATION, txid, id])
.then(_ => null).catch(error => console.error(error));
}).catch(error => console.error(error)).finally(_ => {
delete callbackCollection[type][id];
balance_locked[sinkID][asset] -= quantity;
});
}
collectAndCall(SINK_GROUP[type], sinkID, callback); //TODO: add timeout to prevent infinite wait
callbackCollection[type][id] = callback;
if (!(sinkID in balance_locked))
balance_locked[sinkID] = {};
balance_locked[sinkID][asset] = (balance_locked[sinkID][asset] || 0) + quantity;
}).catch(error => console.error(error))
}
function withdrawAsset_init(floID, asset, amount) {
amount = global.toStandardDecimal(amount);
let asset_type = ["FLO", "BTC"].includes(asset) ? pCode.ASSET_TYPE_COIN : pCode.ASSET_TYPE_TOKEN;
DB.query("INSERT INTO VaultTransactions (floID, mode, asset_type, asset, amount, r_status) VALUES (?)", [[floID, pCode.VAULT_MODE_WITHDRAW, asset_type, asset, amount, pCode.STATUS_PENDING]])
.then(result => sendAsset(floID, asset, amount, TYPE_VAULT, result.insertId))
.catch(error => console.error(error))
}
function withdrawAsset_retry(floID, asset, amount, id) {
if (id in callbackCollection[TYPE_VAULT])
console.debug("A callback is already pending for this Coin transfer");
else sendAsset(floID, asset, amount, TYPE_VAULT, id);
}
function convertToCoin_init(floID, coin, currency_amount, rate, id) {
let coin_quantity = global.toStandardDecimal(currency_amount / rate);
DB.query("UPDATE DirectConvert SET quantity=?, r_status=?, rate=?, locktime=DEFAULT WHERE id=?", [coin_quantity, pCode.STATUS_PROCESSING, rate, id])
.then(result => sendAsset(floID, coin, coin_quantity, TYPE_CONVERT, id))
.catch(error => console.error(error))
}
function convertToCoin_retry(floID, coin, coin_quantity, id) {
if (id in callbackCollection[TYPE_CONVERT])
console.debug("A callback is already pending for this Coin convert");
else sendAsset(floID, coin, coin_quantity, TYPE_CONVERT, id);
}
function convertFromCoin_init(floID, coin_quantity, rate, id) {
let currency_amount = global.toStandardDecimal(coin_quantity * rate);
DB.query("UPDATE DirectConvert SET amount=?, r_status=?, rate=?, locktime=DEFAULT WHERE id=?", [currency_amount, pCode.STATUS_PROCESSING, rate, id])
.then(result => sendAsset(floID, floGlobals.currency, currency_amount, TYPE_CONVERT, id))
.catch(error => console.error(error))
}
function convertFromCoin_retry(floID, currency_amount, id) {
if (id in callbackCollection[TYPE_CONVERT])
console.debug("A callback is already pending for this Coin Convert");
else sendAsset(floID, floGlobals.currency, currency_amount, TYPE_CONVERT, id);
}
function convertFundWithdraw_retry(asset, amount, id) {
if (id in callbackCollection[TYPE_CONVERT_POOL])
console.debug("A callback is already pending for this Convert fund withdrawal");
else sendAsset(floGlobals.adminID, asset, amount, TYPE_CONVERT_POOL, id);
}
function bondTransact_retry(floID, amount, btc_rate, usd_rate, id) {
if (id in callbackCollection[TYPE_BLOCKCHAIN_BOND])
console.debug("A callback is already pending for this Bond closing");
else sendAsset(floID, "BTC", amount / (btc_rate * usd_rate), TYPE_BLOCKCHAIN_BOND, id);
}
function fundTransact_retry(floID, amount, btc_rate, usd_rate, id) {
if (id in callbackCollection[TYPE_BOBS_FUND])
console.debug("A callback is already pending for this Fund investment closing");
else sendAsset(floID, "BTC", amount / (btc_rate * usd_rate), TYPE_BOBS_FUND, id);
}
function refundConvert_init(floID, asset, amount, id) {
amount = global.toStandardDecimal(amount);
DB.query("UPDATE RefundConvert SET amount=?, r_status=?, locktime=DEFAULT WHERE id=?", [amount, pCode.STATUS_PROCESSING, id])
.then(result => sendAsset(floID, asset, amount, TYPE_CONVERT_REFUND, id))
.catch(error => console.error(error))
}
function refundConvert_retry(floID, asset, amount, id) {
if (id in callbackCollection[TYPE_CONVERT_REFUND])
console.debug("A callback is already pending for this Refund");
else sendAsset(floID, asset, amount, TYPE_CONVERT_REFUND, id);
}
module.exports = {
withdrawAsset: {
init: withdrawAsset_init,
retry: withdrawAsset_retry
},
convertToCoin: {
init: convertToCoin_init,
retry: convertToCoin_retry
},
convertFromCoin: {
init: convertFromCoin_init,
retry: convertFromCoin_retry
},
convertFundWithdraw: {
retry: convertFundWithdraw_retry
},
bondTransact: {
retry: bondTransact_retry
},
fundTransact: {
retry: fundTransact_retry
},
refundConvert: {
init: refundConvert_init,
retry: refundConvert_retry
}
}

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'use strict';
const price = require("./price");
const DB = require("./database");
const {
WAIT_TIME,
TRADE_HASH_PREFIX
} = require("./_constants")["market"];
const updateBalance = {};
updateBalance.consume = (floID, token, amount) => ["UPDATE UserBalance SET quantity=quantity-? WHERE floID=? AND token=?", [amount, floID, token]];
updateBalance.add = (floID, token, amount) => ["INSERT INTO UserBalance (floID, token, quantity) VALUE (?) ON DUPLICATE KEY UPDATE quantity=quantity+?", [[floID, token, amount], amount]];
const couplingInstance = {},
couplingTimeout = {};
function stopAllInstance() {
for (let asset in couplingTimeout) {
if (couplingTimeout[asset])
clearTimeout(couplingTimeout[asset]);
delete couplingInstance[asset];
delete couplingTimeout[asset];
}
}
function startCouplingForAsset(asset, updatePrice = false) {
if (couplingInstance[asset] === true) { //if coupling is already running for asset
if (updatePrice) { //wait until current instance is over
if (couplingTimeout[asset]) clearTimeout(couplingTimeout[asset]);
couplingTimeout[asset] = setTimeout(() => startCouplingForAsset(asset, true), WAIT_TIME);
}
return;
}
price.getRates(asset, updatePrice).then(cur_rate => {
cur_rate = global.toStandardDecimal(cur_rate);
couplingInstance[asset] = true; //set instance as running
recursiveCoupling(asset, cur_rate, updatePrice);
}).catch(error => console.error(error));
}
function getBestPair(asset, cur_rate) {
return new Promise((resolve, reject) => {
Promise.allSettled([getBestBuyer(asset, cur_rate), getBestSeller(asset, cur_rate)]).then(results => {
if (results[0].status === "fulfilled" && results[1].status === "fulfilled")
resolve({
buy: results[0].value,
sell: results[1].value,
})
else
reject({
buy: results[0].reason,
sell: results[1].reason
})
}).catch(error => reject(error))
})
}
const getBestSeller = (asset, cur_rate) => new Promise((resolve, reject) => {
DB.query("SELECT SellOrder.id, SellOrder.floID, SellOrder.quantity, SellChips.id AS chip_id, SellChips.quantity AS chip_quantity FROM SellOrder" +
" INNER JOIN UserBalance ON UserBalance.floID = SellOrder.floID AND UserBalance.token = SellOrder.asset" +
" INNER JOIN SellChips ON SellChips.floID = SellOrder.floID AND SellChips.asset = SellOrder.asset AND SellChips.base <= ?" +
" LEFT JOIN UserTag ON UserTag.floID = SellOrder.floID" +
" LEFT JOIN TagList ON TagList.tag = UserTag.tag" +
" WHERE UserBalance.quantity >= SellOrder.quantity AND SellOrder.asset = ? AND SellOrder.minPrice <= ?" +
" ORDER BY TagList.sellPriority DESC, SellChips.locktime ASC, SellOrder.time_placed ASC" +
" LIMIT 1", [cur_rate, asset, cur_rate]
).then(result => {
if (result.length)
resolve(result[0]);
else
reject(null);
}).catch(error => reject(error))
});
const getBestBuyer = (asset, cur_rate) => new Promise((resolve, reject) => {
DB.query("SELECT BuyOrder.id, BuyOrder.floID, BuyOrder.quantity FROM BuyOrder" +
" INNER JOIN UserBalance ON UserBalance.floID = BuyOrder.floID AND UserBalance.token = ?" +
" LEFT JOIN UserTag ON UserTag.floID = BuyOrder.floID" +
" LEFT JOIN TagList ON TagList.tag = UserTag.tag" +
" WHERE UserBalance.quantity >= BuyOrder.maxPrice * BuyOrder.quantity AND BuyOrder.asset = ? AND BuyOrder.maxPrice >= ?" +
" ORDER BY TagList.buyPriority DESC, BuyOrder.time_placed ASC" +
" LIMIT 1", [floGlobals.currency, asset, cur_rate]
).then(result => {
if (result.length)
resolve(result[0]);
else
reject(null);
}).catch(error => reject(error))
});
function recursiveCoupling(asset, cur_rate, flag = false) {
processCoupling(asset, cur_rate).then(result => {
console.log(result);
if (couplingInstance[asset] === true)
recursiveCoupling(asset, cur_rate, true);
}).catch(error => {
//noBuy = error[0], noSell = error[1], reason = error[2]
price.noOrder(asset, error[0], error[1]);
error[3] ? console.debug(error[2]) : console.error(error[2]);
//set timeout for next coupling (if not order placement occurs)
if (flag) {
price.updateLastTime(asset);
if (couplingInstance[asset] === true && flag) {
//if price was updated and/or trade happened, reset timer
if (couplingTimeout[asset]) clearTimeout(couplingTimeout[asset]);
couplingTimeout[asset] = setTimeout(() => startCouplingForAsset(asset, true), price.MIN_TIME);
}
}
delete couplingInstance[asset];
})
}
function processCoupling(asset, cur_rate) {
return new Promise((resolve, reject) => {
getBestPair(asset, cur_rate).then(best => {
//console.debug("Sell:", best.sell);
//console.debug("Buy:", best.buy);
let quantity = Math.min(best.buy.quantity, best.sell.quantity, best.sell.chip_quantity);
let txQueries = processOrders(best.sell, best.buy, asset, cur_rate, quantity);
//begin audit
beginAudit(best.sell.floID, best.buy.floID, asset, cur_rate, quantity).then(audit => {
//process txn query in SQL
DB.transaction(txQueries).then(_ => {
audit.end();
resolve(`Transaction was successful! BuyOrder:${best.buy.id}| SellOrder:${best.sell.id}`)
}).catch(error => reject([null, null, error]));
}).catch(error => reject([null, null, error]));
}).catch(error => {
let noBuy, noSell;
if (error.buy === undefined)
noBuy = false;
else if (error.buy === null)
noBuy = true;
else {
console.error(error.buy);
noBuy = null;
}
if (error.sell === undefined)
noSell = false;
else if (error.sell === null)
noSell = true;
else {
console.error(error.sell);
noSell = null;
}
reject([noBuy, noSell, `No valid ${noSell ? 'sellOrders' : ''} | ${noBuy ? 'buyOrders' : ''} for Asset: ${asset}`, true]);
});
})
}
function processOrders(seller_best, buyer_best, asset, cur_rate, quantity) {
let txQueries = [];
if (quantity > buyer_best.quantity || quantity > seller_best.quantity)
throw Error("Tx quantity cannot be more than order quantity");
//Process Buy Order
if (quantity == buyer_best.quantity)
txQueries.push(["DELETE FROM BuyOrder WHERE id=?", [buyer_best.id]]);
else
txQueries.push(["UPDATE BuyOrder SET quantity=quantity-? WHERE id=?", [quantity, buyer_best.id]]);
//Process Sell Order
if (quantity == seller_best.quantity)
txQueries.push(["DELETE FROM SellOrder WHERE id=?", [seller_best.id]]);
else
txQueries.push(["UPDATE SellOrder SET quantity=quantity-? WHERE id=?", [quantity, seller_best.id]]);
//Process Sell Chip
if (quantity == seller_best.chip_quantity)
txQueries.push(["DELETE FROM SellChips WHERE id=?", [seller_best.chip_id]]);
else
txQueries.push(["UPDATE SellChips SET quantity=quantity-? WHERE id=?", [quantity, seller_best.chip_id]]);
//Update cash/asset balance for seller and buyer
let totalAmount = cur_rate * quantity;
txQueries.push(updateBalance.add(seller_best.floID, floGlobals.currency, totalAmount));
txQueries.push(updateBalance.consume(buyer_best.floID, floGlobals.currency, totalAmount));
txQueries.push(updateBalance.consume(seller_best.floID, asset, quantity));
txQueries.push(updateBalance.add(buyer_best.floID, asset, quantity));
//Add SellChips to Buyer
txQueries.push(["INSERT INTO SellChips(floID, asset, base, quantity) VALUES (?)", [[buyer_best.floID, asset, cur_rate, quantity]]])
//Record transaction
let time = Date.now();
let hash = TRADE_HASH_PREFIX + Crypto.SHA256(JSON.stringify({
seller: seller_best.floID,
buyer: buyer_best.floID,
asset: asset,
quantity: quantity,
unitValue: cur_rate,
tx_time: time,
}));
txQueries.push([
"INSERT INTO TradeTransactions (seller, buyer, asset, quantity, unitValue, tx_time, txid) VALUES (?)",
[[seller_best.floID, buyer_best.floID, asset, quantity, cur_rate, new Date(time), hash]]
]);
return txQueries;
}
function beginAudit(sellerID, buyerID, asset, unit_price, quantity) {
return new Promise((resolve, reject) => {
auditBalance(sellerID, buyerID, asset).then(old_bal => resolve({
end: () => endAudit(sellerID, buyerID, asset, old_bal, unit_price, quantity)
})).catch(error => reject(error))
})
}
function endAudit(sellerID, buyerID, asset, old_bal, unit_price, quantity) {
auditBalance(sellerID, buyerID, asset).then(new_bal => {
DB.query("INSERT INTO AuditTrade (asset, quantity, unit_price, total_cost," +
" sellerID, seller_old_cash, seller_old_asset, seller_new_cash, seller_new_asset," +
" buyerID, buyer_old_cash, buyer_old_asset, buyer_new_cash, buyer_new_asset)" +
" Value (?)", [[
asset, quantity, unit_price, quantity * unit_price,
sellerID, old_bal[sellerID].cash, old_bal[sellerID].asset, new_bal[sellerID].cash, new_bal[sellerID].asset,
buyerID, old_bal[buyerID].cash, old_bal[buyerID].asset, new_bal[buyerID].cash, new_bal[buyerID].asset,
]]).then(_ => null).catch(error => console.error(error))
}).catch(error => console.error(error));
}
function auditBalance(sellerID, buyerID, asset) {
return new Promise((resolve, reject) => {
let balance = {
[sellerID]: {
cash: 0,
asset: 0
},
[buyerID]: {
cash: 0,
asset: 0
}
};
DB.query("SELECT floID, quantity, token FROM UserBalance WHERE floID IN (?) AND token IN (?)", [[sellerID, buyerID], [floGlobals.currency, asset]]).then(result => {
for (let i in result) {
if (result[i].token === floGlobals.currency)
balance[result[i].floID].cash = result[i].quantity;
else if (result[i].token === asset)
balance[result[i].floID].asset = result[i].quantity;
}
resolve(balance);
}).catch(error => reject(error))
})
}
module.exports = {
initiate: startCouplingForAsset,
stopAll: stopAllInstance,
updateBalance
}

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'use strict';
var mysql = require('mysql');
var pool;//container for connected pool;
function connectToDatabase(user, password, dbname, host = 'localhost') {
return new Promise((resolve, reject) => {
pool = mysql.createPool({
host: host,
user: user,
password: password,
database: dbname,
//dateStrings : true,
//timezone: 'UTC'
});
getConnection().then(conn => {
conn.release();
resolve(pool);
}).catch(error => reject(error));
});
}
function getConnection() {
return new Promise((resolve, reject) => {
if (!pool)
return reject("Database not connected");
pool.getConnection((error, conn) => {
if (error)
reject(error);
else
resolve(conn);
});
})
}
function SQL_query(sql, values) {
return new Promise((resolve, reject) => {
getConnection().then(conn => {
const fn = (err, res) => {
conn.release();
(err ? reject(err) : resolve(res));
};
if (values)
conn.query(sql, values, fn);
else
conn.query(sql, fn);
}).catch(error => reject(error));
})
}
function SQL_transaction(queries) {
return new Promise((resolve, reject) => {
getConnection().then(conn => {
conn.beginTransaction(err => {
if (err)
conn.rollback(() => {
conn.release();
reject(err);
});
else {
(function queryFn(result) {
if (!queries.length) {
conn.commit(err => {
if (err)
conn.rollback(() => {
conn.release();
reject(err);
});
else {
conn.release();
resolve(result);
}
});
} else {
let q_i = queries.shift();
const callback = function (err, res) {
if (err)
conn.rollback(() => {
conn.release();
reject(err);
});
else {
result.push(res);
queryFn(result);
}
};
if (!Array.isArray(q_i))
q_i = [q_i];
if (q_i[1])
conn.query(q_i[0], q_i[1], callback);
else
conn.query(q_i[0], callback);
}
})([]);
}
});
}).catch(error => reject(error));
})
}
module.exports = {
connect: connectToDatabase,
query: SQL_query,
transaction: SQL_transaction
};

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'use strict';
const fs = require('fs');
const path = require('path');
const lockfile = require('proper-lockfile');
const DB = require("./database");
var _I = ""; //Instance support
for (let arg of process.argv)
if (/^-I=/.test(arg)) {
_I = arg.split(/=(.*)/s)[1];
break;
}
const {
SHARES_PER_NODE,
SHARE_THRESHOLD,
SHUFFLE_INTERVAL
} = require("./_constants")["keys"];
const PRIV_EKEY_MIN = 32,
PRIV_EKEY_MAX = 48,
PRIME_FILE_TYPE = 'binary',
INDEX_FILE_TYPE = 'utf-8',
UNSIGNED_INT_MIN = 0,
UNSIGNED_INT_MAX = 4294967295,
INDEX_FILE_NAME_LENGTH = 16,
INDEX_FILE_EXT = '.txt',
MIN_DUMMY_FILES = 16,
MAX_DUMMY_FILES = 24,
MIN_DUMMY_SIZE_MUL = 0.5,
MAX_DUMMY_SIZE_MUL = 1.5,
SIZE_FACTOR = 100,
LOCK_RETRY_MIN_TIME = 1 * 1000,
LOCK_RETRY_MAX_TIME = 2 * 1000;
var node_priv, e_key, node_id, node_pub; //containers for node-key wrapper
const _x = {
get node_priv() {
if (!node_priv || !e_key)
throw Error("keys not set");
return Crypto.AES.decrypt(node_priv, e_key);
},
set node_priv(key) {
node_pub = floCrypto.getPubKeyHex(key);
node_id = floCrypto.getFloID(node_pub);
if (!key || !node_pub || !node_id)
throw Error("Invalid Keys");
let n = floCrypto.randInt(PRIV_EKEY_MIN, PRIV_EKEY_MAX)
e_key = floCrypto.randString(n);
node_priv = Crypto.AES.encrypt(key, e_key);
},
args_dir: path.resolve(__dirname, '..', 'args'),
get index_dir() {
return path.join(this.args_dir, `indexes${_I}`)
},
get prime_file() {
return path.join(this.args_dir, `prime_index${_I}.b`)
},
get index_file() {
try {
let data = fs.readFileSync(this.prime_file, PRIME_FILE_TYPE),
fname = Crypto.AES.decrypt(data, this.node_priv);
return path.join(this.index_dir, fname + INDEX_FILE_EXT);
} catch (error) {
console.debug(error);
throw Error("Prime-Index Missing/Corrupted");
}
}
}
function initialize() {
return new Promise((resolve, reject) => {
fs.readFile(_x.prime_file, PRIME_FILE_TYPE, (err, res) => {
var data, cur_filename, new_filename, priv_key;
try {
priv_key = _x.node_priv;
} catch (error) {
return reject(error);
}
if (!err) {
if (res.length) { //prime file not empty
try {
cur_filename = Crypto.AES.decrypt(res, priv_key);
} catch (error) {
console.debug(error);
return reject("Prime file corrupted");
} try { //read data from index file
let tmp = fs.readFileSync(path.join(_x.index_dir, cur_filename + INDEX_FILE_EXT), INDEX_FILE_TYPE);
tmp = Crypto.AES.decrypt(tmp, priv_key);
JSON.parse(tmp); //check if data is JSON parse-able
data = tmp;
} catch (error) {
console.debug(error);
return reject("Index file corrupted");
}
}
}
try {
if (!fs.existsSync(_x.index_dir)) {
fs.mkdirSync(_x.index_dir);
}
} catch (error) {
console.debug(error);
return reject("Index directory creation failed");
}
try { //delete all old dummy files
let files = fs.readdirSync(_x.index_dir);
for (const file of files)
if (!cur_filename || file !== cur_filename + INDEX_FILE_EXT) //check if file is current file
fs.unlinkSync(path.join(_x.index_dir, file));
} catch (error) {
console.debug(error);
return reject("Clear index directory failed");
} try { //create files (dummy and new index file)
let N = floCrypto.randInt(MIN_DUMMY_FILES, MAX_DUMMY_FILES),
k = floCrypto.randInt(0, N);
if (typeof data === 'undefined' || data.length == 0) //no existing data, initialize
data = JSON.stringify({});
let data_size = data.length;
for (let i = 0; i <= N; i++) {
let f_data, f_name = floCrypto.randString(INDEX_FILE_NAME_LENGTH);
if (i == k) {
new_filename = f_name;
f_data = data;
} else {
let d_size = data_size * (floCrypto.randInt(MIN_DUMMY_SIZE_MUL * SIZE_FACTOR, MAX_DUMMY_SIZE_MUL * SIZE_FACTOR) / SIZE_FACTOR);
f_data = floCrypto.randString(d_size, false);
}
f_data = Crypto.AES.encrypt(f_data, priv_key);
fs.writeFileSync(path.join(_x.index_dir, f_name + INDEX_FILE_EXT), f_data, INDEX_FILE_TYPE);
}
} catch (error) {
console.debug(error);
return reject("Index file creation failed");
} try { //update prime file
let en_filename = Crypto.AES.encrypt(new_filename, priv_key);
fs.writeFileSync(_x.prime_file, en_filename, PRIME_FILE_TYPE);
} catch (error) {
console.debug(error);
return reject("Update prime file failed");
}
if (cur_filename)
fs.unlink(path.join(_x.index_dir, cur_filename + INDEX_FILE_EXT), err => err ? console.debug(err) : null);
shuffle.interval = setInterval(shuffle, SHUFFLE_INTERVAL);
resolve("Key management initiated");
})
})
}
function shuffle() {
readIndexFile().then(data => {
let new_filename, cur_filename = Crypto.AES.decrypt(fs.readFileSync(_x.prime_file, PRIME_FILE_TYPE), _x.node_priv);
fs.readdir(_x.index_dir, (err, files) => {
if (err)
return console.error(err);
data = JSON.stringify(data);
let data_size = data.length;
for (let file of files) {
let f_data, f_name = floCrypto.randString(INDEX_FILE_NAME_LENGTH);
if (file === cur_filename + INDEX_FILE_EXT) {
new_filename = f_name;
f_data = data;
} else {
let d_size = data_size * (floCrypto.randInt(MIN_DUMMY_SIZE_MUL * SIZE_FACTOR, MAX_DUMMY_SIZE_MUL * SIZE_FACTOR) / SIZE_FACTOR);
f_data = floCrypto.randString(d_size, false);
}
f_data = Crypto.AES.encrypt(f_data, _x.node_priv);
//rename and rewrite the file
try {
fs.renameSync(path.join(_x.index_dir, file), path.join(_x.index_dir, f_name + INDEX_FILE_EXT));
fs.writeFileSync(path.join(_x.index_dir, f_name + INDEX_FILE_EXT), f_data, INDEX_FILE_TYPE);
} catch (error) {
console.error(error)
}
}
//update prime file
if (!new_filename)
return console.error("Index file has not been renamed");
let en_filename = Crypto.AES.encrypt(new_filename, _x.node_priv);
try {
fs.writeFileSync(_x.prime_file, en_filename, PRIME_FILE_TYPE);
} catch (error) {
console.error(error);
}
})
}).catch(error => console.error(error))
}
function readIndexFile() {
return new Promise((resolve, reject) => {
fs.readFile(_x.index_file, INDEX_FILE_TYPE, (err, data) => {
if (err) {
console.debug(err);
return reject('Unable to read Index file');
}
try {
data = JSON.parse(Crypto.AES.decrypt(data, _x.node_priv));
resolve(data);
} catch {
reject("Index file corrupted");
}
})
})
}
function writeIndexFile(data) {
return new Promise((resolve, reject) => {
let en_data = Crypto.AES.encrypt(JSON.stringify(data), _x.node_priv);
fs.writeFile(_x.index_file, en_data, INDEX_FILE_TYPE, (err) => {
if (err) {
console.debug(err);
return reject('Unable to write Index file');
} else resolve("Updated Index file");
})
})
}
function getShares(group, id, ignoreDiscarded = true) {
return new Promise((resolve, reject) => {
checkIfDiscarded(id).then(result => {
if (ignoreDiscarded && result != false)
return reject("Trying to get share for discarded ID");
readIndexFile().then(data => {
if (!(group in data))
reject("Group not found in Index file");
else if (!(id in data[group]))
reject("ID not found in Index file");
else {
let ref = data[group][id].shift();
DB.query("SELECT share FROM sinkShares WHERE num IN (?)", [data[group][id]])
.then(result => resolve({ ref, shares: result.map(r => Crypto.AES.decrypt(r.share, _x.node_priv)) }))
.catch(error => reject(error))
}
}).catch(error => reject(error))
}).catch(error => reject(error))
})
}
function storeShareAtRandom(share) {
return new Promise((resolve, reject) => {
let rand = floCrypto.randInt(UNSIGNED_INT_MIN, UNSIGNED_INT_MAX);
DB.query("INSERT INTO sinkShares(num, share) VALUE (?)", [[rand, share]])
.then(result => resolve(result.insertId)).catch(error => {
if (error.code === "ER_DUP_ENTRY")
storeShareAtRandom(share) //try again (with diff rand_num)
.then(result => resolve(result))
.catch(error => reject(error))
else
reject(error);
})
})
}
function addShare(group, id, ref, share) {
return new Promise((resolve, reject) => {
checkIfDiscarded(id).then(result => {
if (result != false)
return reject("Trying to store share for discarded ID");
lockfile.lock(_x.index_file, { retries: { forever: true, minTimeout: LOCK_RETRY_MIN_TIME, maxTimeout: LOCK_RETRY_MAX_TIME } }).then(release => {
const releaseAndReject = err => {
release().then(_ => null).catch(error => console.error(error));
reject(err);
}
readIndexFile().then(data => {
if (!(group in data))
data[group] = {};
if (!(id in data[group]))
data[group][id] = [ref];
else if (ref < data[group][id][0])
return reject("reference is lower than current");
else if (ref > data[group][id][0]) {
let old_shares = data[group][id];
data[group][id] = [ref];
old_shares.shift();
DB.query("DELETE FROM sinkShares WHERE num in (?)", [old_shares])//delete old shares
.then(_ => null).catch(error => console.error(error));
}
let encrypted_share = Crypto.AES.encrypt(share, _x.node_priv);
console.debug(ref, '|sinkID:', id, '|EnShare:', encrypted_share);
storeShareAtRandom(encrypted_share).then(i => {
data[group][id].push(i);
writeIndexFile(data).then(_ => resolve(i)).catch(error => reject(error))
.finally(_ => release().then(_ => null).catch(error => console.error(error)));
}).catch(error => releaseAndReject(error))
}).catch(error => releaseAndReject(error))
}).catch(error => reject(error))
}).catch(error => reject(error))
})
}
function generateShares(sinkKey, total_n, min_n) {
let shares = floCrypto.createShamirsSecretShares(sinkKey, total_n * SHARES_PER_NODE, min_n * SHARES_PER_NODE * SHARE_THRESHOLD);
let node_shares = Array(total_n);
for (let i = 0; i < total_n; i++)
node_shares[i] = shares.splice(0, SHARES_PER_NODE);
return node_shares;
}
function getStoredList(group = null) {
return new Promise((resolve, reject) => {
readIndexFile().then(data => {
if (group !== null) {
if (group in data)
resolve(Object.keys(data.group));
else
reject("Group not found in Index file");
} else {
let ids = {};
for (let group in data)
ids[group] = Object.keys(data[group]);
resolve(ids);
}
}).catch(error => reject(error))
})
}
function getDiscardedList() {
return new Promise((resolve, reject) => {
DB.query("SELECT floID, discard_time FROM discardedSinks")
.then(result => resolve(Object.fromEntries(result.map(r => [r.floID, r.discard_time]))))
.catch(error => reject(error))
})
}
function checkIfDiscarded(id) {
return new Promise((resolve, reject) => {
DB.query("SELECT discard_time FROM discardedSinks WHERE floID=?", [id])
.then(result => resolve(result.length ? result[0].discard_time : false))
.catch(error => reject(error))
})
}
function discardSink(id) {
return new Promise((resolve, reject) => {
DB.query("INSERT INTO discardedSinks(floID) VALUE (?)", [id])
.then(result => resolve(`Discarded ${id}`))
.catch(error => reject(error))
})
}
//Sink groups and chest
const sink_groups = {
get EXCHANGE() { return "exchange" },
get CONVERT() { return "convert" },
get BLOCKCHAIN_BONDS() { return "blockchain_bonds" },
get BOBS_FUND() { return "bobs_fund" },
get list() { //total list
return [this.EXCHANGE, this.CONVERT, this.BLOCKCHAIN_BONDS, this.BOBS_FUND]
},
get initial_list() { //list to generate when starting exchange
return [this.EXCHANGE, this.CONVERT]
},
get generate_list() { //list allowed to generate
return [this.EXCHANGE, this.CONVERT, this.BLOCKCHAIN_BONDS, this.BOBS_FUND]
}
};
const sink_ids = {}, sink_chest = {
reset() {
for (let i in sink_ids)
delete sink_ids[i];
},
set_id(group, id, value) {
if (!(group in sink_ids))
sink_ids[group] = {};
sink_ids[group][id] = value;
},
rm_id(group, id) {
return delete sink_ids[group][id];
},
get_id(group, id) {
return sink_ids[group][id];
},
list(group) {
return Object.keys(sink_ids[group] || {});
},
active_list(group) {
let ids = [];
if (group in sink_ids)
for (let id in sink_ids[group])
if (sink_ids[group][id])
ids.push(id);
return ids;
},
includes(group, id) {
return group in sink_ids ? (id in sink_ids[group]) : null;
},
isActive(group, id) {
return group in sink_ids ? (id in sink_ids && sink_ids[id]) : null;
},
pick(group) {
let ids = this.list(group),
i = floCrypto.randInt(0, ids.length - 1);
return ids[i];
},
active_pick(group) {
let ids = this.active_list(group),
i = floCrypto.randInt(0, ids.length - 1);
return ids[i];
},
find_group(id) {
let group = null;
for (let g in sink_ids)
if (id in sink_ids[g]) {
group = g; break;
}
return group;
},
get_all() {
let ids = {};
for (let g in sink_ids)
ids[g] = Object.keys(sink_ids[g])
return ids;
}
};
module.exports = {
init: initialize,
getShares,
addShare,
generateShares,
getStoredList,
getDiscardedList,
checkIfDiscarded,
discardSink,
set node_priv(key) {
_x.node_priv = key;
},
get node_priv() {
return _x.node_priv;
},
get node_id() {
return node_id;
},
get node_pub() {
return node_pub;
},
get sink_groups() {
return sink_groups;
},
get sink_chest() {
return sink_chest;
}
}

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'use strict';
global.floGlobals = require('../docs/scripts/floGlobals');
require('./set_globals');
require('../docs/scripts/lib');
global.floCrypto = require('../docs/scripts/floCrypto');
global.floBlockchainAPI = require('../docs/scripts/floBlockchainAPI');
global.floTokenAPI = require('../docs/scripts/floTokenAPI');
global.btcOperator = require('../docs/scripts/btcOperator');
(function () {
const { adminID, application } = require("../docs/scripts/floExchangeAPI");
floGlobals.adminID = adminID;
floGlobals.application = application;
})();
const keys = require('./keys');
const DB = require("./database");
const App = require('./app');
const backup = require('./backup/head');
const {
BLOCKCHAIN_REFRESH_INTERVAL
} = require("./_constants")["app"];
var app;
function refreshData(startup = false) {
return new Promise((resolve, reject) => {
refreshDataFromBlockchain().then(changes => {
loadDataFromDB(changes, startup).then(_ => {
if (!startup && changes.nodes)
backup.reconstructAllActiveShares();
app.refreshData(backup.nodeList);
resolve("Data refresh successful")
}).catch(error => reject(error))
}).catch(error => reject(error))
})
}
function refreshDataFromBlockchain() {
return new Promise((resolve, reject) => {
DB.query("SELECT txid FROM LastTx WHERE floID=?", [floGlobals.adminID]).then(result => {
var query_options = { sentOnly: true, pattern: floGlobals.application };
let lastTx = result.length ? result[0].txid : undefined;
if (typeof lastTx == 'string' && /^[0-9a-f]{64}/i.test(lastTx))//lastTx is txid of last tx
query_options.after = lastTx;
else if (!isNaN(lastTx))//lastTx is tx count (*backward support)
query_options.ignoreOld = parseInt(lastTx);
floBlockchainAPI.readData(floGlobals.adminID, query_options).then(result => {
let promises = [],
nodes_change = false,
assets_change = false,
trusted_change = false;
result.data.reverse().forEach(data => {
var content = JSON.parse(data)[floGlobals.application];
//Node List
if (content.Nodes) {
nodes_change = true;
if (content.Nodes.remove)
for (let n of content.Nodes.remove)
promises.push(DB.query("DELETE FROM NodeList WHERE floID=?", [n]));
if (content.Nodes.add)
for (let n in content.Nodes.add)
promises.push(DB.query("INSERT INTO NodeList (floID, uri) VALUE (?) ON DUPLICATE KEY UPDATE uri=?", [[n, content.Nodes.add[n]], content.Nodes.add[n]]));
if (content.Nodes.update)
for (let n in content.Nodes.update)
promises.push(DB.query("UPDATE NodeList SET uri=? WHERE floID=?", [content.Nodes.update[n], n]));
}
//Asset List
if (content.Assets) {
assets_change = true;
for (let a in content.Assets)
promises.push(DB.query("INSERT INTO AssetList (asset, initialPrice) VALUE (?) ON DUPLICATE KEY UPDATE initialPrice=?", [[a, content.Assets[a]], content.Assets[a]]));
}
//Trusted List
if (content.Trusted) {
trusted_change = true;
if (content.Trusted.remove)
for (let id of content.Trusted.remove)
promises.push(DB.query("DELETE FROM TrustedList WHERE floID=?", [id]));
if (content.Trusted.add)
for (let id of content.Trusted.add)
promises.push(DB.query("INSERT INTO TrustedList (floID) VALUE (?) ON DUPLICATE KEY UPDATE floID=floID", [id]));
}
//Tag List with priority
if (content.Tag) {
if (content.Tag.remove)
for (let t of content.Tag.remove)
promises.push(DB.query("DELETE FROM TagList WHERE tag=?", [t]));
if (content.Tag.add)
for (let t in content.Tag.add)
promises.push(DB.query("INSERT INTO TagList (tag, sellPriority, buyPriority) VALUE (?) ON DUPLICATE KEY UPDATE tag=tag", [[t, content.Tag.add[t].sellPriority, content.Tag.add[t].buyPriority]]));
if (content.Tag.update)
for (let t in content.Tag.update)
for (let a in content.Tag.update[t])
promises.push(`UPDATE TagList WHERE tag=? SET ${a}=?`, [t, content.Tag.update[t][a]]);
}
});
promises.push(DB.query("INSERT INTO LastTx (floID, txid) VALUE (?) ON DUPLICATE KEY UPDATE txid=?", [[floGlobals.adminID, result.lastItem], result.lastItem]));
//Check if all save process were successful
Promise.allSettled(promises).then(results => {
//console.debug(results.filter(r => r.status === "rejected"));
if (results.reduce((a, r) => r.status === "rejected" ? ++a : a, 0))
console.warn("Some blockchain data might not have been saved in database correctly");
resolve({
nodes: nodes_change,
assets: assets_change,
trusted: trusted_change
});
});
}).catch(error => reject(error));
}).catch(error => reject(error))
})
}
function loadDataFromDB(changes, startup) {
return new Promise((resolve, reject) => {
let promises = [];
if (startup || changes.nodes)
promises.push(loadDataFromDB.nodeList());
if (startup || changes.assets)
promises.push(loadDataFromDB.assetList());
if (startup || changes.trusted)
promises.push(loadDataFromDB.trustedIDs());
Promise.all(promises)
.then(_ => resolve("Data load successful"))
.catch(error => reject(error))
})
}
loadDataFromDB.nodeList = function () {
return new Promise((resolve, reject) => {
DB.query("SELECT floID, uri FROM NodeList").then(result => {
let nodes = {}
for (let i in result)
nodes[result[i].floID] = result[i].uri;
//update dependents
backup.nodeList = nodes;
resolve(nodes);
}).catch(error => reject(error))
})
}
loadDataFromDB.assetList = function () {
return new Promise((resolve, reject) => {
DB.query("SELECT asset FROM AssetList").then(result => {
let assets = [];
for (let i in result)
assets.push(result[i].asset);
//update dependents
backup.assetList = assets;
app.assetList = assets;
resolve(assets);
}).catch(error => reject(error))
})
}
loadDataFromDB.trustedIDs = function () {
return new Promise((resolve, reject) => {
DB.query("SELECT * FROM TrustedList").then(result => {
let trustedIDs = [];
for (let i in result)
trustedIDs.push(result[i].floID);
//update dependents
app.trustedIDs = trustedIDs;
resolve(trustedIDs);
}).catch(error => reject(error))
})
}
module.exports = function startServer() {
let _pass, _I = "";
for (let arg of process.argv) {
if (/^-I=/.test(arg))
_I = arg.split(/=(.*)/s)[1];
else if (/^-password=/i.test(arg))
_pass = arg.split(/=(.*)/s)[1];
}
const config = require(`../args/config${_I}.json`);
try {
let _tmp = require(`../args/keys${_I}.json`);
_tmp = floCrypto.retrieveShamirSecret(_tmp);
if (!_pass) {
console.error('Password not entered!');
process.exit(1);
}
keys.node_priv = Crypto.AES.decrypt(_tmp, _pass);
} catch (error) {
console.error('Unable to load private key!');
process.exit(1);
}
console.log("Logged in as", keys.node_id);
DB.connect(config["sql_user"], config["sql_pwd"], config["sql_db"], config["sql_host"]).then(result => {
keys.init().then(result => {
console.log(result);
app = new App(config['secret']);
refreshData(true).then(_ => {
app.start(config['port']).then(result => {
console.log(result);
backup.init(app);
setInterval(() => {
refreshData()
.then(result => console.log(result))
.catch(error => console.error(error))
}, BLOCKCHAIN_REFRESH_INTERVAL);
}).catch(error => console.error(error))
}).catch(error => console.error(error))
}).catch(error => console.error(error))
}).catch(error => console.error(error));
};

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'use strict';
const coupling = require('./coupling');
const price = require("./price");
const background = require('./background');
const DB = require("./database");
const blockchain = require('./blockchain');
const {
TRADE_HASH_PREFIX,
TRANSFER_HASH_PREFIX
} = require('./_constants')["market"];
const eCode = require('../docs/scripts/floExchangeAPI').errorCode;
const pCode = require('../docs/scripts/floExchangeAPI').processCode;
const updateBalance = background.updateBalance = coupling.updateBalance;
var assetList; //container for allowed assets
function login(floID, proxyKey) {
return new Promise((resolve, reject) => {
DB.query("INSERT INTO UserSession (floID, proxyKey) VALUE (?) ON DUPLICATE KEY UPDATE session_time=DEFAULT, proxyKey=?", [[floID, proxyKey], proxyKey])
.then(result => resolve("Login Successful"))
.catch(error => reject(error))
})
}
function logout(floID) {
return new Promise((resolve, reject) => {
DB.query("DELETE FROM UserSession WHERE floID=?", [floID])
.then(result => resolve("Logout successful"))
.catch(error => reject(error))
})
}
function getRateHistory(asset, duration) {
return new Promise((resolve, reject) => {
if (!asset || !assetList.includes(asset))
reject(INVALID(eCode.INVALID_TOKEN_NAME, `Invalid asset(${asset})`));
else
price.getHistory(asset, duration)
.then(result => resolve(result))
.catch(error => reject(error))
})
}
function getBalance(floID, token) {
return new Promise((resolve, reject) => {
if (floID && !floCrypto.validateAddr(floID))
reject(INVALID(eCode.INVALID_FLO_ID, `Invalid floID(${floID})`));
else if (token && token !== floGlobals.currency && !assetList.includes(token))
reject(INVALID(eCode.INVALID_TOKEN_NAME, `Invalid token(${token})`));
else if (!floID && !token)
reject(INVALID(eCode.MISSING_PARAMETER, 'Missing parameters: requires atleast one (floID, token)'));
else {
var promise;
if (floID && token)
promise = getBalance.floID_token(floID, token);
else if (floID)
promise = getBalance.floID(floID);
else if (token)
promise = getBalance.token(token);
promise.then(result => resolve(result)).catch(error => reject(error))
}
})
}
getBalance.floID_token = (floID, token) => new Promise((resolve, reject) => {
DB.query("SELECT quantity AS balance FROM UserBalance WHERE floID=? AND token=?", [floID, token]).then(result => resolve({
floID,
token,
balance: result.length ? global.toStandardDecimal(result[0].balance) : 0
})).catch(error => reject(error))
});
getBalance.floID = (floID) => new Promise((resolve, reject) => {
DB.query("SELECT token, quantity AS balance FROM UserBalance WHERE floID=?", [floID]).then(result => {
let response = {
floID,
balance: {}
};
for (let row of result)
response.balance[row.token] = global.toStandardDecimal(row.balance);
resolve(response);
}).catch(error => reject(error))
});
getBalance.token = (token) => new Promise((resolve, reject) => {
DB.query("SELECT floID, quantity AS balance FROM UserBalance WHERE token=?", [token]).then(result => {
let response = {
token: token,
balance: {}
};
for (let row of result)
response.balance[row.floID] = global.toStandardDecimal(row.balance);
resolve(response);
}).catch(error => reject(error))
});
const getAssetBalance = (floID, asset) => new Promise((resolve, reject) => {
let promises = [];
promises.push(DB.query("SELECT IFNULL(SUM(quantity), 0) AS balance FROM UserBalance WHERE floID=? AND token=?", [floID, asset]));
promises.push(asset === floGlobals.currency ?
DB.query("SELECT IFNULL(SUM(quantity*maxPrice), 0) AS locked FROM BuyOrder WHERE floID=?", [floID]) :
DB.query("SELECT IFNULL(SUM(quantity), 0) AS locked FROM SellOrder WHERE floID=? AND asset=?", [floID, asset])
);
Promise.all(promises).then(result => resolve({
total: result[0][0].balance,
locked: result[1][0].locked,
net: result[0][0].balance - result[1][0].locked
})).catch(error => reject(error))
});
getAssetBalance.check = (floID, asset, amount) => new Promise((resolve, reject) => {
getAssetBalance(floID, asset).then(balance => {
if (balance.total < amount)
reject(INVALID(eCode.INSUFFICIENT_BALANCE, `Insufficient ${asset}`));
else if (balance.net < amount)
reject(INVALID(eCode.INSUFFICIENT_BALANCE, `Insufficient ${asset} (Some are locked in orders)`));
else
resolve(true);
}).catch(error => reject(error))
});
function addSellOrder(floID, asset, quantity, min_price) {
return new Promise((resolve, reject) => {
if (!floCrypto.validateAddr(floID))
return reject(INVALID(eCode.INVALID_FLO_ID, `Invalid floID (${floID})`));
else if (typeof quantity !== "number" || quantity <= 0)
return reject(INVALID(eCode.INVALID_NUMBER, `Invalid quantity (${quantity})`));
else if (typeof min_price !== "number" || min_price <= 0)
return reject(INVALID(eCode.INVALID_NUMBER, `Invalid min_price (${min_price})`));
else if (!assetList.includes(asset))
return reject(INVALID(eCode.INVALID_TOKEN_NAME, `Invalid asset (${asset})`));
getAssetBalance.check(floID, asset, quantity).then(_ => {
checkSellRequirement(floID, asset, quantity, min_price).then(_ => {
DB.query("INSERT INTO SellOrder(floID, asset, quantity, minPrice) VALUES (?)", [[floID, asset, quantity, min_price]]).then(result => {
resolve('Sell Order placed successfully');
coupling.initiate(asset);
}).catch(error => reject(error));
}).catch(error => reject(error))
}).catch(error => reject(error));
});
}
const checkSellRequirement = (floID, asset, quantity, min_price) => new Promise((resolve, reject) => {
Promise.all([
DB.query("SELECT IFNULL(SUM(quantity), 0) AS total_chips FROM SellChips WHERE floID=? AND asset=?", [floID, asset]),
DB.query("SELECT IFNULL(SUM(quantity), 0) AS locked FROM SellOrder WHERE floID=? AND asset=?", [floID, asset])
]).then(result => {
let total = result[0][0].total_chips,
locked = result[1][0].locked;
if (total < locked + quantity)
reject(INVALID(eCode.INSUFFICIENT_SELLCHIP, `Insufficient sell-chips for ${asset}`));
else Promise.all([
DB.query("SELECT IFNULL(SUM(quantity), 0) AS total_chips FROM SellChips WHERE floID=? AND asset=? AND base<=?", [floID, asset, min_price]),
DB.query("SELECT IFNULL(SUM(quantity), 0) AS locked FROM SellOrder WHERE floID=? AND asset=? AND minPrice<=?", [floID, asset, min_price])
]).then(result => {
let g_total = result[0][0].total_chips,
g_locked = result[1][0].locked;
let l_total = total - g_total,
l_locked = locked - g_locked;
var rem = g_total - g_locked;
if (l_locked > l_total)
rem -= l_locked - l_total;
if (rem < quantity)
reject(INVALID(eCode.GREATER_SELLCHIP_BASE, `Cannot sell below purchased price`));
else
resolve(true);
}).catch(error => reject(error))
}).catch(error => reject(error))
});
function addBuyOrder(floID, asset, quantity, max_price) {
return new Promise((resolve, reject) => {
if (!floCrypto.validateAddr(floID))
return reject(INVALID(eCode.INVALID_FLO_ID, `Invalid floID (${floID})`));
else if (typeof quantity !== "number" || quantity <= 0)
return reject(INVALID(eCode.INVALID_NUMBER, `Invalid quantity (${quantity})`));
else if (typeof max_price !== "number" || max_price <= 0)
return reject(INVALID(eCode.INVALID_NUMBER, `Invalid max_price (${max_price})`));
else if (!assetList.includes(asset))
return reject(INVALID(eCode.INVALID_TOKEN_NAME, `Invalid asset (${asset})`));
getAssetBalance.check(floID, floGlobals.currency, quantity * max_price).then(_ => {
DB.query("INSERT INTO BuyOrder(floID, asset, quantity, maxPrice) VALUES (?)", [[floID, asset, quantity, max_price]]).then(result => {
resolve('Buy Order placed successfully');
coupling.initiate(asset);
}).catch(error => reject(error));
}).catch(error => reject(error));
});
}
function cancelOrder(type, id, floID) {
return new Promise((resolve, reject) => {
if (!floCrypto.validateAddr(floID))
return reject(INVALID(eCode.INVALID_FLO_ID, `Invalid floID (${floID})`));
let tableName;
if (type === "buy")
tableName = "BuyOrder";
else if (type === "sell")
tableName = "SellOrder";
else
return reject(INVALID(eCode.INVALID_TYPE, "Invalid Order type! Order type must be buy (or) sell"));
DB.query("SELECT floID, asset FROM ?? WHERE id=?", [tableName, id]).then(result => {
if (result.length < 1)
return reject(INVALID(eCode.NOT_FOUND, "Order not found!"));
else if (result[0].floID !== floID)
return reject(INVALID(eCode.NOT_OWNER, "Order doesnt belong to the current user"));
let asset = result[0].asset;
//Delete the order
DB.query("DELETE FROM ?? WHERE id=?", [tableName, id]).then(result => {
resolve(tableName + "#" + id + " cancelled successfully");
coupling.initiate(asset);
}).catch(error => reject(error));
}).catch(error => reject(error));
});
}
function getAccountDetails(floID) {
return new Promise((resolve, reject) => {
let promises = [
DB.query("SELECT token, quantity FROM UserBalance WHERE floID=?", [floID]),
DB.query("SELECT id, asset, quantity, minPrice, time_placed FROM SellOrder WHERE floID=?", [floID]),
DB.query("SELECT id, asset, quantity, maxPrice, time_placed FROM BuyOrder WHERE floID=?", [floID])
];
Promise.allSettled(promises).then(results => {
let response = {
floID: floID,
time: Date.now()
};
results.forEach((a, i) => {
if (a.status === "rejected")
console.error(a.reason);
else
switch (i) {
case 0:
response.tokenBalance = a.value;
break;
case 1:
response.sellOrders = a.value;
break;
case 2:
response.buyOrders = a.value;
break;
}
});
DB.query("SELECT * FROM TradeTransactions WHERE seller=? OR buyer=?", [floID, floID])
.then(result => response.transactions = result)
.catch(error => console.error(error))
.finally(_ => resolve(response));
});
});
}
function getUserTransacts(floID) {
return new Promise((resolve, reject) => {
DB.query("SELECT mode, asset, amount, txid, locktime, r_status FROM VaultTransactions WHERE floID=?", [floID])
.then(result => resolve(result))
.catch(error => reject(error))
})
}
function getTransactionDetails(txid) {
return new Promise((resolve, reject) => {
let tableName, type;
if (txid.startsWith(TRANSFER_HASH_PREFIX)) {
tableName = 'TransferTransactions';
type = 'transfer';
} else if (txid.startsWith(TRADE_HASH_PREFIX)) {
tableName = 'TradeTransactions';
type = 'trade';
} else
return reject(INVALID(eCode.INVALID_TX_ID, "Invalid TransactionID"));
DB.query("SELECT * FROM ?? WHERE txid=?", [tableName, txid]).then(result => {
if (result.length) {
let details = result[0];
details.type = type;
if (tableName === 'TransferTransactions') //As json object is stored for receiver in transfer (to support one-to-many)
details.receiver = JSON.parse(details.receiver);
resolve(details);
} else
reject(INVALID(eCode.NOT_FOUND, "Transaction not found"));
}).catch(error => reject(error))
})
}
function transferToken(sender, receivers, token) {
return new Promise((resolve, reject) => {
if (!floCrypto.validateAddr(sender))
reject(INVALID(eCode.INVALID_FLO_ID, `Invalid sender (${sender})`));
else if (token !== floGlobals.currency && !assetList.includes(token))
reject(INVALID(eCode.INVALID_TOKEN_NAME, `Invalid token (${token})`));
else {
let invalidIDs = [],
totalAmount = 0;
for (let floID in receivers)
if (!floCrypto.validateAddr(floID))
invalidIDs.push(floID);
else
totalAmount += receivers[floID];
if (invalidIDs.length)
reject(INVALID(eCode.INVALID_FLO_ID, `Invalid receiver (${invalidIDs})`));
else getAssetBalance.check(sender, token, totalAmount).then(_ => {
let txQueries = [];
txQueries.push(updateBalance.consume(sender, token, totalAmount));
for (let floID in receivers)
txQueries.push(updateBalance.add(floID, token, receivers[floID]));
checkDistributor(sender, token).then(result => {
if (result)
for (let floID in receivers)
txQueries.push(["INSERT INTO SellChips (floID, asset, quantity) VALUES (?)", [[floID, token, receivers[floID]]]]);
let time = Date.now();
let hash = TRANSFER_HASH_PREFIX + Crypto.SHA256(JSON.stringify({
sender: sender,
receiver: receivers,
token: token,
totalAmount: totalAmount,
tx_time: time,
}));
txQueries.push([
"INSERT INTO TransferTransactions (sender, receiver, token, totalAmount, tx_time, txid) VALUE (?)",
[[sender, JSON.stringify(receivers), token, totalAmount, new Date(time), hash]]
]);
DB.transaction(txQueries)
.then(result => resolve(hash))
.catch(error => reject(error))
}).catch(error => reject(error))
}).catch(error => reject(error))
}
})
}
function depositFLO(floID, txid) {
return new Promise((resolve, reject) => {
DB.query("SELECT r_status FROM VaultTransactions WHERE txid=? AND floID=? AND asset=?", [txid, floID, "FLO"]).then(result => {
if (result.length) {
switch (result[0].r_status) {
case pCode.STATUS_PENDING:
return reject(INVALID(eCode.DUPLICATE_ENTRY, "Transaction already in process"));
case pCode.STATUS_REJECTED:
return reject(INVALID(eCode.DUPLICATE_ENTRY, "Transaction already rejected"));
case pCode.STATUS_SUCCESS:
return reject(INVALID(eCode.DUPLICATE_ENTRY, "Transaction already used to add coins"));
}
} else
DB.query("INSERT INTO VaultTransactions(floID, mode, asset_type, asset, txid, r_status) VALUES (?)", [[floID, pCode.VAULT_MODE_DEPOSIT, pCode.ASSET_TYPE_COIN, "FLO", txid, pCode.STATUS_PENDING]])
.then(result => resolve("Deposit request in process"))
.catch(error => reject(error));
}).catch(error => reject(error))
});
}
function withdrawFLO(floID, amount) {
return new Promise((resolve, reject) => {
if (!floCrypto.validateAddr(floID))
return reject(INVALID(eCode.INVALID_FLO_ID, `Invalid floID (${floID})`));
else if (typeof amount !== "number" || amount <= 0)
return reject(INVALID(eCode.INVALID_NUMBER, `Invalid amount (${amount})`));
getAssetBalance.check(floID, "FLO", amount).then(_ => {
let txQueries = [];
txQueries.push(updateBalance.consume(floID, "FLO", amount));
DB.transaction(txQueries).then(result => {
blockchain.withdrawAsset.init(floID, "FLO", amount);
resolve("Withdrawal request is in process");
}).catch(error => reject(error));
}).catch(error => reject(error));
});
}
function depositToken(floID, txid) {
return new Promise((resolve, reject) => {
DB.query("SELECT r_status FROM VaultTransactions WHERE txid=? AND floID=? AND asset_type=?", [txid, floID, pCode.ASSET_TYPE_TOKEN]).then(result => {
if (result.length) {
switch (result[0].r_status) {
case pCode.STATUS_PENDING:
return reject(INVALID(eCode.DUPLICATE_ENTRY, "Transaction already in process"));
case pCode.STATUS_REJECTED:
return reject(INVALID(eCode.DUPLICATE_ENTRY, "Transaction already rejected"));
case pCode.STATUS_SUCCESS:
return reject(INVALID(eCode.DUPLICATE_ENTRY, "Transaction already used to add tokens"));
}
} else
DB.query("INSERT INTO VaultTransactions(floID, mode, asset_type, txid, r_status) VALUES (?)", [[floID, pCode.VAULT_MODE_DEPOSIT, pCode.ASSET_TYPE_TOKEN, txid, pCode.STATUS_PENDING]])
.then(result => resolve("Deposit request in process"))
.catch(error => reject(error));
}).catch(error => reject(error))
});
}
function withdrawToken(floID, token, amount) {
return new Promise((resolve, reject) => {
if (!floCrypto.validateAddr(floID))
return reject(INVALID(eCode.INVALID_FLO_ID, `Invalid floID (${floID})`));
else if (typeof amount !== "number" || amount <= 0)
return reject(INVALID(eCode.INVALID_NUMBER, `Invalid amount (${amount})`));
else if ((!assetList.includes(token) && token !== floGlobals.currency) || token === "FLO")
return reject(INVALID(eCode.INVALID_TOKEN_NAME, "Invalid Token"));
//Check for FLO balance (transaction fee)
let required_flo = floGlobals.sendAmt + floGlobals.fee;
getAssetBalance.check(floID, "FLO", required_flo).then(_ => {
getAssetBalance.check(floID, token, amount).then(_ => {
let txQueries = [];
txQueries.push(updateBalance.consume(floID, "FLO", required_flo));
txQueries.push(updateBalance.consume(floID, token, amount));
DB.transaction(txQueries).then(result => {
//Send Token to user via token API
blockchain.withdrawAsset.init(floID, token, amount);
resolve("Withdrawal request is in process");
}).catch(error => reject(error));
}).catch(error => reject(error));
}).catch(error => reject(error));
});
}
function addTag(floID, tag) {
return new Promise((resolve, reject) => {
DB.query("INSERT INTO UserTag (floID, tag) VALUE (?)", [[floID, tag]])
.then(result => resolve(`Added ${floID} to ${tag}`))
.catch(error => {
if (error.code === "ER_DUP_ENTRY")
reject(INVALID(eCode.DUPLICATE_ENTRY, `${floID} already in ${tag}`));
else if (error.code === "ER_NO_REFERENCED_ROW")
reject(INVALID(eCode.INVALID_TAG, `Invalid Tag`));
else
reject(error);
});
});
}
function removeTag(floID, tag) {
return new Promise((resolve, reject) => {
DB.query("DELETE FROM UserTag WHERE floID=? AND tag=?", [floID, tag])
.then(result => resolve(`Removed ${floID} from ${tag}`))
.catch(error => reject(error));
})
}
function addDistributor(floID, asset) {
return new Promise((resolve, reject) => {
DB.query("INSERT INTO Distributors (floID, asset) VALUE (?)", [[floID, asset]])
.then(result => resolve(`Added ${asset} distributor: ${floID}`))
.catch(error => {
if (error.code === "ER_DUP_ENTRY")
reject(INVALID(eCode.DUPLICATE_ENTRY, `${floID} is already ${asset} disributor`));
else if (error.code === "ER_NO_REFERENCED_ROW")
reject(INVALID(eCode.INVALID_TOKEN_NAME, `Invalid Asset`));
else
reject(error);
});
});
}
function removeDistributor(floID, asset) {
return new Promise((resolve, reject) => {
DB.query("DELETE FROM Distributors WHERE floID=? AND tag=?", [floID, asset])
.then(result => resolve(`Removed ${asset} distributor: ${floID}`))
.catch(error => reject(error));
})
}
function checkDistributor(floID, asset) {
return new Promise((resolve, reject) => {
DB.query("SELECT id FROM Distributors WHERE floID=? AND asset=?", [floID, asset])
.then(result => resolve(result.length ? true : false))
.catch(error => reject(error))
})
}
module.exports = {
login,
logout,
get rates() {
return price.currentRates;
},
get priceCountDown() {
return price.lastTimes;
},
addBuyOrder,
addSellOrder,
cancelOrder,
getRateHistory,
getBalance,
getAccountDetails,
getUserTransacts,
getTransactionDetails,
transferToken,
depositFLO,
withdrawFLO,
depositToken,
withdrawToken,
addTag,
removeTag,
addDistributor,
removeDistributor,
set assetList(assets) {
assetList = assets;
background.assetList = assets;
},
get assetList() {
return assetList
}
};

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'use strict';
const DB = require("./database");
const {
MIN_TIME,
DOWN_RATE,
UP_RATE,
MAX_DOWN_PER_DAY,
MAX_UP_PER_DAY,
CHECK_RATED_SELLER,
TOP_RANGE,
REC_HISTORY_INTERVAL
} = require("./_constants")["price"];
var currentRate = {}, //container for FLO price (from API or by model)
lastTime = {}, //container for timestamp of the last tx
noBuyOrder = {},
noSellOrder = {};
const updateLastTime = asset => lastTime[asset] = Date.now();
//store FLO price in database every 1 hr
function storeHistory(asset, rate) {
DB.query("INSERT INTO PriceHistory (asset, rate) VALUE (?)", [[asset, global.toStandardDecimal(rate)]])
.then(_ => null).catch(error => console.error(error))
}
storeHistory.start = function () {
storeHistory.stop();
storeHistory.instance = setInterval(() => {
for (let asset in currentRate)
storeHistory(asset, currentRate[asset]);
}, REC_HISTORY_INTERVAL);
}
storeHistory.stop = function () {
if (storeHistory.instance !== undefined) {
clearInterval(storeHistory.instance);
delete storeHistory.instance;
}
}
function getPastRate(asset, hrs = 24) {
return new Promise((resolve, reject) => {
DB.query("SELECT rate FROM PriceHistory WHERE asset=? AND rec_time >= NOW() - INTERVAL ? hour ORDER BY rec_time LIMIT 1", [asset, hrs])
.then(result => result.length ? resolve(result[0].rate) : reject('No records found in past 24hrs'))
.catch(error => reject(error))
});
}
function getHistory(asset, duration = '') {
return new Promise((resolve, reject) => {
let { statement, values } = getHistory.getRateStatement(asset, duration);
DB.query(statement, values)
.then(result => resolve(result))
.catch(error => reject(error))
});
}
getHistory.statement = {
'all-time': "SELECT DATE(rec_time) AS time, AVG(rate) as rate FROM PriceHistory WHERE asset=? GROUP BY time ORDER BY time",
'year': "SELECT DATE(rec_time) AS time, AVG(rate) as rate FROM PriceHistory WHERE asset=? AND rec_time >= NOW() - INTERVAL ? year GROUP BY time ORDER BY time",
'month': "SELECT DATE(rec_time) AS time, AVG(rate) as rate FROM PriceHistory WHERE asset=? AND rec_time >= NOW() - INTERVAL ? month GROUP BY time ORDER BY time",
'week': "SELECT rec_time AS time, rate FROM PriceHistory WHERE asset=? AND rec_time >= NOW() - INTERVAL ? week ORDER BY time",
'day': "SELECT rec_time AS time, rate FROM PriceHistory WHERE asset=? AND rec_time >= NOW() - INTERVAL ? day ORDER BY time"
}
getHistory.getRateStatement = (asset, duration) => {
let n = duration.match(/\d+/g),
d = duration.match(/\D+/g);
n = n ? n[0] || 1 : 1;
d = d ? d[0].replace(/[-\s]/g, '') : "";
switch (d.toLowerCase()) {
case "day":
case "days":
return { statement: getHistory.statement['day'], values: [asset, n] };
case "week":
case "weeks":
return { statement: getHistory.statement['week'], values: [asset, n] };
case "month":
case "months":
return { statement: getHistory.statement['month'], values: [asset, n] };
case "year":
case "years":
return { statement: getHistory.statement['year'], values: [asset, n] };
case "alltime":
return { statement: getHistory.statement['all-time'], values: [asset] };
default:
return { statement: getHistory.statement['day'], values: [asset, 1] };
}
}
function loadRate(asset) {
return new Promise((resolve, reject) => {
if (typeof currentRate[asset] !== "undefined")
return resolve(currentRate[asset]);
DB.query("SELECT rate FROM PriceHistory WHERE asset=? ORDER BY rec_time DESC LIMIT 1", [asset]).then(result => {
updateLastTime(asset);
if (result.length)
resolve(currentRate[asset] = result[0].rate);
else
DB.query("SELECT initialPrice FROM AssetList WHERE asset=?", [asset]).then(result => {
currentRate[asset] = result[0].initialPrice;
storeHistory(asset, currentRate[asset]);
resolve(currentRate[asset]);
}).catch(error => reject(error))
}).catch(error => reject(error));
})
}
function getRates(asset, updatePrice = false) {
return new Promise((resolve, reject) => {
loadRate(asset).then(_ => {
//console.debug(asset, currentRate[asset]);
let cur_time = Date.now();
if (!updatePrice || cur_time - lastTime[asset] < MIN_TIME) //Minimum time to update not crossed: No update required
resolve(currentRate[asset]);
else if (noBuyOrder[asset] && noSellOrder[asset]) //Both are not available: No update required
resolve(currentRate[asset]);
else if (noBuyOrder[asset] === null || noSellOrder[asset] === null) //An error has occured during last process: No update (might cause price to crash/jump)
resolve(currentRate[asset]);
else
getPastRate(asset).then(ratePast24hr => {
if (noBuyOrder[asset]) {
//No Buy, But Sell available: Decrease the price
let tmp_val = currentRate[asset] * (1 - DOWN_RATE);
if (tmp_val >= ratePast24hr * (1 - MAX_DOWN_PER_DAY))
currentRate[asset] = tmp_val;
else
console.debug("Max Price down for the day has reached");
resolve(currentRate[asset]);
} else if (noSellOrder[asset]) {
//No Sell, But Buy available: Increase the price
checkForRatedSellers(asset).then(result => {
if (result) {
let tmp_val = currentRate[asset] * (1 + UP_RATE);
if (tmp_val <= ratePast24hr * (1 + MAX_UP_PER_DAY))
currentRate[asset] = tmp_val;
else
console.debug("Max Price up for the day has reached");
}
}).catch(error => console.error(error)).finally(_ => resolve(currentRate[asset]));
}
}).catch(error => {
console.error(error);
resolve(currentRate[asset]);
});
}).catch(error => reject(error));
})
}
function checkForRatedSellers(asset) {
//Check if there are best rated sellers?
return new Promise((resolve, reject) => {
if (!CHECK_RATED_SELLER) //switch for the check case
return resolve(true);
DB.query("SELECT MAX(sellPriority) as max_p FROM TagList").then(result => {
let ratedMin = result[0].max_p * (1 - TOP_RANGE);
DB.query("SELECT COUNT(*) as value FROM SellOrder WHERE floID IN (" +
" SELECT UserTag.floID FROM UserTag INNER JOIN TagList ON UserTag.tag = TagList.tag" +
" WHERE TagList.sellPriority > ?) AND asset=?", [ratedMin, asset]).then(result => {
resolve(result[0].value > 0);
}).catch(error => reject(error))
}).catch(error => reject(error))
})
}
module.exports = {
getRates,
getHistory,
storeHistory,
updateLastTime,
MIN_TIME,
noOrder(asset, buy, sell) {
noBuyOrder[asset] = buy;
noSellOrder[asset] = sell;
},
get currentRates() {
return Object.assign({}, currentRate);
},
get lastTimes() {
let countDown = {};
for (let asset in lastTime)
countDown[asset] = lastTime[asset] + MIN_TIME;
return countDown;
}
}

743
exchangemarket/src/request.js Normal file
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@ -0,0 +1,743 @@
'use strict';
const DB = require("./database");
const market = require("./market");
const conversion = require('./services/conversion');
const blockchain_bonds = require("./services/bonds");
const bobs_fund = require("./services/bobs-fund");
const background = require("./background");
const sink = require("./backup/head").sink;
const keys = require("./keys");
const {
SIGN_EXPIRE_TIME,
MAX_SESSION_TIMEOUT
} = require("./_constants")["request"];
const eCode = require('../docs/scripts/floExchangeAPI').errorCode;
const serviceList = require('../docs/scripts/floExchangeAPI').serviceList;
var trustedIDs, secret; //containers for trusted IDs and secret
global.INVALID = function (ecode, message) {
if (!(this instanceof INVALID))
return new INVALID(ecode, message);
this.message = message;
this.ecode = ecode;
}
INVALID.e_code = 400;
INVALID.prototype.toString = function () {
return "E" + this.ecode + ": " + this.message;
}
INVALID.str = (ecode, message) => INVALID(ecode, message).toString();
global.INTERNAL = function INTERNAL(message) {
if (!(this instanceof INTERNAL))
return new INTERNAL(message);
this.message = message;
}
INTERNAL.e_code = 500;
INTERNAL.prototype.toString = function () {
return "E" + eCode.INTERNAL_ERROR + ": " + this.message;
}
INTERNAL.str = (ecode, message) => INTERNAL(ecode, message).toString();
const INCORRECT_SERVER_ERROR = INVALID(eCode.INCORRECT_SERVER, "Incorrect server");
var serving;
function validateRequest(request, sign, floID, pubKey) {
return new Promise((resolve, reject) => {
if (!serving)
reject(INCORRECT_SERVER_ERROR);
else if (!request.timestamp)
reject(INVALID(eCode.MISSING_PARAMETER, "Timestamp parameter missing"));
else if (Date.now() - SIGN_EXPIRE_TIME > request.timestamp)
reject(INVALID(eCode.EXPIRED_SIGNATURE, "Signature Expired"));
else if (!floCrypto.validateAddr(floID))
reject(INVALID(eCode.INVALID_FLO_ID, "Invalid floID"));
else if (typeof request !== "object")
reject(INVALID(eCode.INVALID_REQUEST_FORMAT, "Request is not an object"));
else validateRequest.getSignKey(floID, pubKey).then(signKey => {
let req_str = Object.keys(request).sort().map(r => r + ":" + request[r]).join("|");
try {
if (!floCrypto.verifySign(req_str, sign, signKey))
reject(INVALID(eCode.INVALID_SIGNATURE, "Invalid request signature"));
else validateRequest.checkIfSignUsed(sign)
.then(result => resolve(req_str))
.catch(error => reject(error))
} catch {
reject(INVALID(eCode.INVALID_SIGNATURE, "Corrupted sign/key"));
}
}).catch(error => reject(error));
});
}
validateRequest.getSignKey = (floID, pubKey) => new Promise((resolve, reject) => {
if (!pubKey)
DB.query("SELECT session_time, proxyKey FROM UserSession WHERE floID=?", [floID]).then(result => {
if (result.length < 1)
reject(INVALID(eCode.SESSION_INVALID, "Session not active"));
else if (result[0].session_time + MAX_SESSION_TIMEOUT < Date.now())
reject(INVALID(eCode.SESSION_EXPIRED, "Session Expired! Re-login required"));
else
resolve(result[0].proxyKey);
}).catch(error => reject(error));
else if (floCrypto.getFloID(pubKey) === floID)
resolve(pubKey);
else
reject(INVALID(eCode.INVALID_PUBLIC_KEY, "Invalid pubKey"));
});
validateRequest.checkIfSignUsed = sign => new Promise((resolve, reject) => {
DB.query("SELECT id FROM RequestLog WHERE sign=?", [sign]).then(result => {
if (result.length)
reject(INVALID(eCode.DUPLICATE_SIGNATURE, "Duplicate signature"));
else
resolve(true);
}).catch(error => reject(error))
});
function logRequest(floID, req_str, sign, proxy = false) {
//console.debug(floID, req_str);
DB.query("INSERT INTO RequestLog (floID, request, sign, proxy) VALUES (?)", [[floID, req_str, sign, proxy]])
.then(_ => null).catch(error => console.error(error));
}
function processRequest(res, floID, pubKey, sign, rText, validateObj, marketFn, log = true) {
validateRequest(validateObj, sign, floID, pubKey).then(req_str => {
marketFn().then(result => {
if (log) logRequest(floID, req_str, sign, !pubKey);
res.send(result);
}).catch(error => {
if (error instanceof INVALID)
res.status(INVALID.e_code).send(error.toString());
else {
console.error(error);
res.status(INTERNAL.e_code).send(INTERNAL.str(rText + " failed! Try again later!"));
}
})
}).catch(error => {
if (error instanceof INVALID)
res.status(INVALID.e_code).send(error.toString());
else {
console.error(error);
res.status(INTERNAL.e_code).send(INTERNAL.str("Request processing failed! Try again later!"));
}
})
}
/* User Requests */
function Account(req, res) {
let data = req.body;
validateRequest({
type: "get_account",
timestamp: data.timestamp
}, data.sign, data.floID, data.pubKey).then(req_str => {
market.getAccountDetails(data.floID).then(result => {
if (trustedIDs.includes(data.floID))
result.subAdmin = true;
res.send(result);
});
}).catch(error => {
if (error instanceof INVALID)
res.status(INVALID.e_code).send(error.toString());
else {
console.error(error);
res.status(INTERNAL.e_code).send(INTERNAL.str("Request processing failed! Try again later!"));
}
});
}
function Login(req, res) {
let data = req.body;
if (!data.code || data.hash != Crypto.SHA1(data.code + secret))
res.status(INVALID.e_code).send(INVALID.str(eCode.INVALID_LOGIN_CODE, "Invalid Code"));
else if (!data.pubKey)
res.status(INVALID.e_code).send(INVALID.str(eCode.MISSING_PARAMETER, "Public key missing"));
else
processRequest(res, data.floID, data.pubKey, data.sign, "Login", {
type: "login",
random: data.code,
proxyKey: data.proxyKey,
timestamp: data.timestamp
}, () => market.login(data.floID, data.proxyKey));
}
function Logout(req, res) {
let data = req.body;
processRequest(res, data.floID, data.pubKey, data.sign, "Logout", {
type: "logout",
timestamp: data.timestamp
}, () => market.logout(data.floID));
}
function PlaceSellOrder(req, res) {
let data = req.body;
processRequest(res, data.floID, data.pubKey, data.sign, "Sell order placement", {
type: "sell_order",
asset: data.asset,
quantity: data.quantity,
min_price: data.min_price,
timestamp: data.timestamp
}, () => market.addSellOrder(data.floID, data.asset, data.quantity, data.min_price));
}
function PlaceBuyOrder(req, res) {
let data = req.body;
processRequest(res, data.floID, data.pubKey, data.sign, "Buy order placement", {
type: "buy_order",
asset: data.asset,
quantity: data.quantity,
max_price: data.max_price,
timestamp: data.timestamp
}, () => market.addBuyOrder(data.floID, data.asset, data.quantity, data.max_price));
}
function CancelOrder(req, res) {
let data = req.body;
processRequest(res, data.floID, data.pubKey, data.sign, "Order cancellation", {
type: "cancel_order",
order: data.orderType,
id: data.orderID,
timestamp: data.timestamp
}, () => market.cancelOrder(data.orderType, data.orderID, data.floID));
}
function TransferToken(req, res) {
let data = req.body;
processRequest(res, data.floID, data.pubKey, data.sign, "Token Transfer", {
type: "transfer_token",
receiver: JSON.stringify(data.receiver),
token: data.token,
timestamp: data.timestamp
}, () => market.transferToken(data.floID, data.receiver, data.token));
}
function DepositFLO(req, res) {
let data = req.body;
processRequest(res, data.floID, data.pubKey, data.sign, "Deposit FLO", {
type: "deposit_flo",
txid: data.txid,
timestamp: data.timestamp
}, () => market.depositFLO(data.floID, data.txid));
}
function WithdrawFLO(req, res) {
let data = req.body;
processRequest(res, data.floID, data.pubKey, data.sign, "Withdraw FLO", {
type: "withdraw_flo",
amount: data.amount,
timestamp: data.timestamp
}, () => market.withdrawFLO(data.floID, data.amount));
}
function DepositToken(req, res) {
let data = req.body;
processRequest(res, data.floID, data.pubKey, data.sign, "Deposit Token", {
type: "deposit_token",
txid: data.txid,
timestamp: data.timestamp
}, () => market.depositToken(data.floID, data.txid));
}
function WithdrawToken(req, res) {
let data = req.body;
processRequest(res, data.floID, data.pubKey, data.sign, "Withdraw Token", {
type: "withdraw_token",
token: data.token,
amount: data.amount,
timestamp: data.timestamp
}, () => market.withdrawToken(data.floID, data.token, data.amount));
}
function GetUserTransacts(req, res) {
let data = req.body;
processRequest(res, data.floID, data.pubKey, data.sign, "User Transacts", {
type: "get_transact",
timestamp: data.timestamp
}, () => market.getUserTransacts(data.floID));
}
function AddUserTag(req, res) {
let data = req.body;
if (!trustedIDs.includes(data.floID))
res.status(INVALID.e_code).send(INVALID.str(eCode.ACCESS_DENIED, "Access Denied"));
else processRequest(res, data.floID, data.pubKey, data.sign, "Add user-tag", {
type: "add_tag",
user: data.user,
tag: data.tag,
timestamp: data.timestamp
}, () => market.addTag(data.user, data.tag));
}
function RemoveUserTag(req, res) {
let data = req.body;
if (!trustedIDs.includes(data.floID))
res.status(INVALID.e_code).send(INVALID.str(eCode.ACCESS_DENIED, "Access Denied"));
else processRequest(res, data.floID, data.pubKey, data.sign, "Remove user-tag", {
type: "remove_tag",
user: data.user,
tag: data.tag,
timestamp: data.timestamp
}, () => market.removeTag(data.user, data.tag));
}
function AddDistributor(req, res) {
let data = req.body;
if (!trustedIDs.includes(data.floID))
res.status(INVALID.e_code).send(INVALID.str(eCode.ACCESS_DENIED, "Access Denied"));
else processRequest(res, data.floID, data.pubKey, data.sign, "Add distributor", {
type: "add_distributor",
distributor: data.distributor,
asset: data.asset,
timestamp: data.timestamp
}, () => market.addDistributor(data.distributor, data.asset));
}
function RemoveDistributor(req, res) {
let data = req.body;
if (!trustedIDs.includes(data.floID))
res.status(INVALID.e_code).send(INVALID.str(eCode.ACCESS_DENIED, "Access Denied"));
else processRequest(res, data.floID, data.pubKey, data.sign, "Remove distributor", {
type: "remove_distributor",
distributor: data.distributor,
asset: data.asset,
timestamp: data.timestamp
}, () => market.removeDistributor(data.distributor, data.asset));
}
function GenerateSink(req, res) {
let data = req.body;
if (data.floID !== floGlobals.adminID)
res.status(INVALID.e_code).send(INVALID.str(eCode.ACCESS_DENIED, "Access Denied"));
else if (!data.pubKey)
res.status(INVALID.e_code).send(INVALID.str(eCode.MISSING_PARAMETER, "Public key missing"));
else processRequest(res, data.floID, data.pubKey, data.sign, "Generate Sink", {
type: "generate_sink",
group: data.group,
timestamp: data.timestamp
}, () => sink.generate(data.group));
}
function ReshareSink(req, res) {
let data = req.body;
console.debug(data)
if (data.floID !== floGlobals.adminID)
res.status(INVALID.e_code).send(INVALID.str(eCode.ACCESS_DENIED, "Access Denied"));
else if (!data.pubKey)
res.status(INVALID.e_code).send(INVALID.str(eCode.MISSING_PARAMETER, "Public key missing"));
else if (!floCrypto.validateAddr(data.id))
res.status(INVALID.e_code).send(INVALID.str(eCode.INVALID_VALUE, `Invalid ID ${data.id}`));
else processRequest(res, data.floID, data.pubKey, data.sign, "Reshare Sink", {
type: "reshare_sink",
id: data.id,
timestamp: data.timestamp
}, () => sink.reshare(data.id));
}
function DiscardSink(req, res) {
let data = req.body;
if (data.floID !== floGlobals.adminID)
res.status(INVALID.e_code).send(INVALID.str(eCode.ACCESS_DENIED, "Access Denied"));
else if (!data.pubKey)
res.status(INVALID.e_code).send(INVALID.str(eCode.MISSING_PARAMETER, "Public key missing"));
else processRequest(res, data.floID, data.pubKey, data.sign, "Discard Sink", {
type: "discard_sink",
id: data.id,
timestamp: data.timestamp
}, () => sink.discard(data.id));
}
function ConvertTo(req, res) {
let data = req.body;
processRequest(res, data.floID, data.pubKey, data.sign, "Conversion", {
type: "convert_to",
coin: data.coin,
amount: data.amount,
txid: data.txid,
timestamp: data.timestamp
}, () => conversion.convertToCoin(data.floID, data.txid, data.coin, data.amount));
}
function ConvertFrom(req, res) {
let data = req.body;
processRequest(res, data.floID, data.pubKey, data.sign, "Conversion", {
type: "convert_from",
coin: data.coin,
quantity: data.quantity,
txid: data.txid,
timestamp: data.timestamp
}, () => conversion.convertFromCoin(data.floID, data.txid, data.tx_hex, data.coin, data.quantity));
}
function DepositConvertCoinFund(req, res) {
let data = req.body;
if (data.floID !== floGlobals.adminID)
res.status(INVALID.e_code).send(INVALID.str(eCode.ACCESS_DENIED, "Access Denied"));
else if (!data.pubKey)
res.status(INVALID.e_code).send(INVALID.str(eCode.MISSING_PARAMETER, "Public key missing"));
else processRequest(res, data.floID, data.pubKey, data.sign, "Conversion Fund", {
type: "deposit_convert_coin_fund",
coin: data.coin,
txid: data.txid,
timestamp: data.timestamp
}, () => conversion.depositFund.coin(data.floID, data.txid, data.coin));
}
function DepositConvertCurrencyFund(req, res) {
let data = req.body;
if (data.floID !== floGlobals.adminID)
res.status(INVALID.e_code).send(INVALID.str(eCode.ACCESS_DENIED, "Access Denied"));
else if (!data.pubKey)
res.status(INVALID.e_code).send(INVALID.str(eCode.MISSING_PARAMETER, "Public key missing"));
else processRequest(res, data.floID, data.pubKey, data.sign, "Conversion Fund", {
type: "deposit_convert_currency_fund",
coin: data.coin,
txid: data.txid,
timestamp: data.timestamp
}, () => conversion.depositFund.currency(data.floID, data.txid, data.coin));
}
function WithdrawConvertCoinFund(req, res) {
let data = req.body;
if (data.floID !== floGlobals.adminID)
res.status(INVALID.e_code).send(INVALID.str(eCode.ACCESS_DENIED, "Access Denied"));
else if (!data.pubKey)
res.status(INVALID.e_code).send(INVALID.str(eCode.MISSING_PARAMETER, "Public key missing"));
else processRequest(res, data.floID, data.pubKey, data.sign, "Conversion Fund", {
type: "withdraw_convert_coin_fund",
coin: data.coin,
quantity: data.quantity,
timestamp: data.timestamp
}, () => conversion.withdrawFund.coin(data.floID, data.coin, data.quantity));
}
function WithdrawConvertCurrencyFund(req, res) {
let data = req.body;
if (data.floID !== floGlobals.adminID)
res.status(INVALID.e_code).send(INVALID.str(eCode.ACCESS_DENIED, "Access Denied"));
else if (!data.pubKey)
res.status(INVALID.e_code).send(INVALID.str(eCode.MISSING_PARAMETER, "Public key missing"));
else processRequest(res, data.floID, data.pubKey, data.sign, "Conversion Fund", {
type: "withdraw_convert_currency_fund",
coin: data.coin,
amount: data.amount,
timestamp: data.timestamp
}, () => conversion.withdrawFund.currency(data.floID, data.coin, data.amount));
}
function CloseBlockchainBond(req, res) {
let data = req.body;
if (!data.pubKey)
res.status(INVALID.e_code).send(INVALID.str(eCode.MISSING_PARAMETER, "Public key missing"));
else
processRequest(res, data.floID, data.pubKey, data.sign, "Blockchain Bond Closing", {
type: "close_blockchain_bond",
bond_id: data.bond_id,
timestamp: data.timestamp
}, () => blockchain_bonds.closeBond(data.bond_id, data.floID, `${data.timestamp}.${data.sign}`));
}
function CloseBobsFund(req, res) {
let data = req.body;
if (!data.pubKey)
res.status(INVALID.e_code).send(INVALID.str(eCode.MISSING_PARAMETER, "Public key missing"));
else
processRequest(res, data.floID, data.pubKey, data.sign, "Bob's Fund closing", {
type: "close_bobs_fund",
fund_id: data.fund_id,
timestamp: data.timestamp
}, () => bobs_fund.closeFund(data.fund_id, data.floID, `${data.timestamp}.${data.sign}`));
}
function CheckBlockchainBondBalance(req, res) {
let data = req.body;
if (!trustedIDs.includes(data.floID))
res.status(INVALID.e_code).send(INVALID.str(eCode.ACCESS_DENIED, "Access Denied"));
else processRequest(res, data.floID, data.pubKey, data.sign, "Check blockchain-bond", {
type: "check_blockchain_bond",
prior_time: data.prior_time,
timestamp: data.timestamp
}, () => blockchain_bonds.checkBondBalance(data.prior_time), false);
}
function CheckBobsFundBalance(req, res) {
let data = req.body;
if (!trustedIDs.includes(data.floID))
res.status(INVALID.e_code).send(INVALID.str(eCode.ACCESS_DENIED, "Access Denied"));
else processRequest(res, data.floID, data.pubKey, data.sign, "Check bobs-fund", {
type: "check_bobs_fund",
prior_time: data.prior_time,
timestamp: data.timestamp
}, () => bobs_fund.checkFundBalance(data.prior_time), false);
}
/* Public Requests */
function GetLoginCode(req, res) {
if (!serving)
res.status(INVALID.e_code).send(INCORRECT_SERVER_ERROR.toString());
else {
let randID = floCrypto.randString(8, true) + Math.round(Date.now() / 1000);
let hash = Crypto.SHA1(randID + secret);
res.send({
code: randID,
hash: hash
});
}
}
function ListSellOrders(req, res) {
if (!serving)
res.status(INVALID.e_code).send(INCORRECT_SERVER_ERROR.toString());
else {
let asset = req.query.asset;
if (asset && !market.assetList.includes(asset))
res.status(INVALID.e_code).send(INVALID.str(eCode.INVALID_TOKEN_NAME, "Invalid asset parameter"));
else
DB.query("SELECT SellOrder.floID, SellOrder.asset, SellOrder.minPrice, SellOrder.quantity, SellOrder.time_placed FROM SellOrder" +
" INNER JOIN UserBalance ON UserBalance.floID = SellOrder.floID AND UserBalance.token = SellOrder.asset" +
" INNER JOIN SellChips ON SellChips.floID = SellOrder.floID AND SellChips.asset = SellOrder.asset" +
" LEFT JOIN UserTag ON UserTag.floID = SellOrder.floID" +
" LEFT JOIN TagList ON TagList.tag = UserTag.tag" +
" WHERE UserBalance.quantity >= SellOrder.quantity" +
(asset ? " AND SellOrder.asset = ?" : "") +
" GROUP BY SellOrder.id" +
" ORDER BY MAX(TagList.sellPriority) DESC, MIN(SellChips.locktime) ASC, SellOrder.time_placed ASC" +
" LIMIT 100", [asset || null])
.then(result => res.send(result))
.catch(error => {
console.error(error);
res.status(INTERNAL.e_code).send(INTERNAL.str("Try again later!"));
});
}
}
function ListBuyOrders(req, res) {
if (!serving)
res.status(INVALID.e_code).send(INCORRECT_SERVER_ERROR.toString());
else {
let asset = req.query.asset;
if (asset && !market.assetList.includes(asset))
res.status(INVALID.e_code).send(INVALID.str(eCode.INVALID_TOKEN_NAME, "Invalid asset parameter"));
else
DB.query("SELECT BuyOrder.floID, BuyOrder.asset, BuyOrder.maxPrice, BuyOrder.quantity, BuyOrder.time_placed FROM BuyOrder" +
" INNER JOIN UserBalance ON UserBalance.floID = BuyOrder.floID AND UserBalance.token = ?" +
" LEFT JOIN UserTag ON UserTag.floID = BuyOrder.floID" +
" LEFT JOIN TagList ON TagList.tag = UserTag.tag" +
" WHERE UserBalance.quantity >= BuyOrder.maxPrice * BuyOrder.quantity" +
(asset ? " AND BuyOrder.asset = ?" : "") +
" GROUP BY BuyOrder.id" +
" ORDER BY MAX(TagList.buyPriority) DESC, BuyOrder.time_placed ASC" +
" LIMIT 100", [floGlobals.currency, asset || null])
.then(result => res.send(result))
.catch(error => {
console.error(error);
res.status(INTERNAL.e_code).send(INTERNAL.str("Try again later!"));
});
}
}
function ListTradeTransactions(req, res) {
if (!serving)
res.status(INVALID.e_code).send(INCORRECT_SERVER_ERROR.toString());
else {
let asset = req.query.asset;
if (asset && !market.assetList.includes(asset))
res.status(INVALID.e_code).send(INVALID.str(eCode.INVALID_TOKEN_NAME, "Invalid asset parameter"));
else
DB.query("SELECT * FROM TradeTransactions" +
(asset ? " WHERE asset = ?" : "") +
" ORDER BY tx_time DESC LIMIT 1000", [asset || null])
.then(result => res.send(result))
.catch(error => {
console.error(error);
res.status(INTERNAL.e_code).send(INTERNAL.str("Try again later!"));
});
}
}
function GetConvertValues(req, res) {
if (!serving)
res.status(INVALID.e_code).send(INCORRECT_SERVER_ERROR.toString());
else conversion.getConvertValues()
.then(result => res.send(result))
.catch(error => {
if (error instanceof INVALID)
res.status(INVALID.e_code).send(error.toString());
else {
console.error(error);
res.status(INTERNAL.e_code).send(INTERNAL.str("Unable to process! Try again later!"));
}
});
}
function GetSink(req, res) {
if (!serving)
res.status(INVALID.e_code).send(INCORRECT_SERVER_ERROR.toString());
else {
let service = req.query.service;
if (!service)
res.status(INVALID.e_code).send(INVALID.str(eCode.MISSING_PARAMETER, "Missing service parameter"));
else if (!(Object.values(serviceList).includes(service)))
res.status(INVALID.e_code).send(INVALID.str(eCode.INVALID_VALUE, "Invalid service parameter"));
else {
let group;
switch (service) {
case serviceList.EXCHANGE: group = keys.sink_groups.EXCHANGE; break;
case serviceList.CONVERT: group = keys.sink_groups.CONVERT; break;
case serviceList.BLOCKCHAIN_BOND: group = keys.sink_groups.BLOCKCHAIN_BONDS; break;
case serviceList.BOBS_FUND: group = keys.sink_groups.BOBS_FUND; break;
}
res.send(keys.sink_chest.active_pick(group));
}
}
}
function GetRates(req, res) {
if (!serving)
res.status(INVALID.e_code).send(INCORRECT_SERVER_ERROR.toString());
else {
let asset = req.query.asset,
rates = market.rates,
countDown = market.priceCountDown;
if (asset) {
if (asset in rates)
res.send({
asset: asset,
rate: rates[asset],
countDown: countDown[asset]
});
else
res.status(INVALID.e_code).send(INVALID.str(eCode.INVALID_TOKEN_NAME, "Invalid asset parameter"));
} else
res.send({
rates,
countDown
});
}
}
function GetRateHistory(req, res) {
if (!serving)
res.status(INVALID.e_code).send(INCORRECT_SERVER_ERROR.toString());
else {
let asset = req.query.asset,
duration = req.query.duration || "";
market.getRateHistory(asset, duration)
.then(result => res.send(result))
.catch(error => {
if (error instanceof INVALID)
res.status(INVALID.e_code).send(error.toString());
else {
console.error(error);
res.status(INTERNAL.e_code).send(INTERNAL.str("Unable to process! Try again later!"));
}
});
}
}
function GetTransaction(req, res) {
if (!serving)
res.status(INVALID.e_code).send(INCORRECT_SERVER_ERROR.toString());
else {
let txid = req.query.txid;
if (!txid)
res.status(INVALID.e_code).send(INVALID.str(eCode.MISSING_PARAMETER, "txid (transactionID) parameter missing"));
else market.getTransactionDetails(txid)
.then(result => res.send(result))
.catch(error => {
if (error instanceof INVALID)
res.status(INVALID.e_code).send(error.toString());
else {
console.error(error);
res.status(INTERNAL.e_code).send(INTERNAL.str("Unable to process! Try again later!"));
}
});
}
}
function GetBalance(req, res) {
if (!serving)
res.status(INVALID.e_code).send(INCORRECT_SERVER_ERROR.toString());
else {
let floID = req.query.floID || req.query.addr,
token = req.query.token || req.query.asset;
market.getBalance(floID, token)
.then(result => res.send(result))
.catch(error => {
if (error instanceof INVALID)
res.status(INVALID.e_code).send(error.toString());
else {
console.error(error);
res.status(INTERNAL.e_code).send(INTERNAL.str("Unable to process! Try again later!"));
}
});
}
}
module.exports = {
GetLoginCode,
Login,
Logout,
PlaceBuyOrder,
PlaceSellOrder,
CancelOrder,
TransferToken,
ListSellOrders,
ListBuyOrders,
ListTradeTransactions,
GetRates,
GetRateHistory,
GetTransaction,
GetBalance,
GetSink,
Account,
DepositFLO,
WithdrawFLO,
DepositToken,
WithdrawToken,
GetUserTransacts,
AddUserTag,
RemoveUserTag,
AddDistributor,
RemoveDistributor,
GenerateSink,
ReshareSink,
DiscardSink,
GetConvertValues,
ConvertTo,
ConvertFrom,
DepositConvertCoinFund,
DepositConvertCurrencyFund,
WithdrawConvertCoinFund,
WithdrawConvertCurrencyFund,
CloseBlockchainBond,
CloseBobsFund,
CheckBlockchainBondBalance,
CheckBobsFundBalance,
set trustedIDs(ids) {
trustedIDs = ids;
},
set assetList(assets) {
market.assetList = assets;
},
set secret(s) {
secret = s;
},
refreshData(nodeList) {
blockchain_bonds.refresh(nodeList);
bobs_fund.refresh(nodeList);
},
pause() {
serving = false;
background.periodicProcess.stop();
},
resume() {
serving = true;
background.periodicProcess.start();
}
};

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'use strict';
const DB = require("../database");
const { sink_chest, sink_groups } = require("../keys");
const eCode = require('../../docs/scripts/floExchangeAPI').errorCode;
const pCode = require('../../docs/scripts/floExchangeAPI').processCode;
const getRate = require('./conversion').getRate;
const bobsFund = (function () {
const productStr = "Bobs Fund";
const magnitude = m => {
switch (m) {
case "thousand": return 1000;
case "lakh": case "lakhs": return 100000;
case "million": return 1000000;
case "crore": case "crores": return 10000000;
default: return null;
}
}
const parseNumber = (str) => {
let n = 0,
g = 0;
str.toLowerCase().replace(/,/g, '').split(" ").forEach(s => {
if (!isNaN(s))
g = parseFloat(s);
else {
let m = magnitude(s);
if (m !== null) {
n += m * g;
g = 0;
}
}
});
return n + g;
}
const parsePeriod = (str) => {
let P = '', n = 0;
str.toLowerCase().replace(/,/g, '').split(" ").forEach(s => {
if (!isNaN(s))
n = parseFloat(s);
else switch (s) {
case "year(s)": case "year": case "years": P += (n + 'Y'); n = 0; break;
case "month(s)": case "month": case "months": P += (n + 'M'); n = 0; break;
case "day(s)": case "day": case "days": P += (n + 'D'); n = 0; break;
}
});
return P;
}
const dateFormat = (date = null) => {
let d = (date ? new Date(date) : new Date()).toDateString();
return [d.substring(8, 10), d.substring(4, 7), d.substring(11, 15)].join(" ");
}
const dateAdder = function (start_date, duration) {
let date = new Date(start_date);
let y = parseInt(duration.match(/\d+Y/)),
m = parseInt(duration.match(/\d+M/)),
d = parseInt(duration.match(/\d+D/));
if (!isNaN(y))
date.setFullYear(date.getFullYear() + y);
if (!isNaN(m))
date.setMonth(date.getMonth() + m);
if (!isNaN(d))
date.setDate(date.getDate() + d);
return date;
}
function calcNetValue(BTC_base, BTC_net, USD_base, USD_net, amount, fee) {
let gain, interest, net;
gain = (BTC_net - BTC_base) / BTC_base;
interest = gain * (1 - fee)
net = amount / USD_base;
net += net * interest;
return net * USD_net;
}
function stringify_main(BTC_base, USD_base, start_date, duration, investments, fee = 0, tapoutWindow = null, tapoutInterval = null) {
let result = [
`${productStr}`,
`Base Value: ${BTC_base} USD`,
`USD INR rate at start: ${USD_base}`,
`Start date: ${dateFormat(start_date)}`,
`Duration: ${duration}`,
`Management Fee: ${fee != 0 ? fee + "%" : "0 (Zero)"}`
];
if (tapoutInterval) {
if (Array.isArray(tapoutInterval)) {
let x = tapoutInterval.pop(),
y = tapoutInterval.join(", ")
tapoutInterval = `${y} and ${x}`
}
result.push(`Tapout availability: ${tapoutWindow} after ${tapoutInterval}`);
}
result.push(`Investment(s) (INR): ${investments.map(f => `${f[0].trim()}-${f[1].trim()}`).join("; ")}`);
return result.join("|");
}
function stringify_continue(fund_id, investments) {
return [
`${productStr}`,
`continue: ${fund_id}`,
`Investment(s) (INR): ${investments.map(f => `${f[0].trim()}-${f[1].trim()}`).join("; ")}`
].join("|");
}
function stringify_end(fund_id, floID, end_date, BTC_net, USD_net, amount, ref_sign, payment_ref) {
return [
`${productStr}`,
`close: ${fund_id}`,
`Investor: ${floID}`,
`End value: ${BTC_net} USD`,
`Date of withdrawal: ${dateFormat(end_date)}`,
`USD INR rate at end: ${USD_net}`,
`Amount withdrawn: Rs ${amount} via ${payment_ref}`,
`Reference: ${ref_sign}`
].join("|");
}
function parse_details(data) {
let funds = {};
funds.investments = {};
if (!Array.isArray(data))
data = [data];
data.forEach(fd => {
if (!/close: [a-z0-9]{64}\|/.test(fd)) { // not a closing tx
let cont = /continue: [a-z0-9]{64}\|/.test(fd);
fd.split("|").forEach(d => {
d = d.split(': ');
if (["invesment(s) (inr)", "investment(s) (inr)"].includes(d[0].toLowerCase()))
d[1].split(";").forEach(a => {
a = a.split("-");
let floID = a[0].replace(/\s/g, ''); //for removing spaces (trailing) if any
funds["investments"][floID] = funds["investments"][floID] || {};
funds["investments"][floID].amount = parseNumber(a[1])
});
else if (!cont)
switch (d[0].toLowerCase()) {
case "start date":
funds["start_date"] = new Date(d[1]); break;
case "base value":
funds["BTC_base"] = parseNumber(d[1].slice(0, -4)); break;
case "usd inr rate at start":
funds["USD_base"] = parseFloat(d[1]); break;
case "duration":
funds["duration"] = parsePeriod(d[1]); break;
case "management fee":
funds["fee"] = parseFloat(d[1]); break;
case "tapout availability":
let x = d[1].toLowerCase().split("after")
funds["tapoutInterval"] = x[1].match(/\d+ [a-z]+/gi).map(y => parsePeriod(y))
funds["topoutWindow"] = parsePeriod(x[0]); break;
}
});
} else {
let floID, details = {};
fd.split("|").forEach(d => {
d = d.split(': ');
switch (d[0].toLowerCase()) {
case "investor":
floID = d[1]; break;
case "end value":
details["BTC_net"] = parseNumber(d[1].slice(0, -4)); break;
case "date of withdrawal":
details["endDate"] = new Date(d[1]); break;
case "amount withdrawn":
details["amountFinal"] = parseNumber(d[1].match(/\d.+ via/).toString());
details["payment_refRef"] = d[1].match(/via .+/).toString().substring(4); break;
case "usd inr rate at end":
details["USD_net"] = parseFloat(d[1]); break;
case "reference":
details["refSign"] = d[1]; break;
}
});
if (floID) {
funds.investments[floID] = funds.investments[floID] || {};
funds.investments[floID].closed = details;
}
}
});
return funds;
}
return {
productStr,
dateAdder,
dateFormat,
calcNetValue,
parse: parse_details,
stringify: {
main: stringify_main,
continue: stringify_continue,
end: stringify_end
}
}
})();
bobsFund.config = {
adminID: "FFXy5pJnfzu2fCDLhpUremyXQjGtFpgCDN",
application: "BobsFund"
}
function refreshBlockchainData(nodeList = []) {
return new Promise((resolve, reject) => {
DB.query("SELECT txid FROM LastTx WHERE floID=?", [bobsFund.config.adminID]).then(result => {
var query_options = {
senders: nodeList.concat(bobsFund.config.adminID),
tx: true, filter: d => d.startsWith(bobsFund.productStr)
};
let lastTx = result.length ? result[0].txid : undefined;
if (typeof lastTx == 'string' && /^[0-9a-f]{64}/i.test(lastTx))//lastTx is txid of last tx
query_options.after = lastTx;
else if (!isNaN(lastTx))//lastTx is tx count (*backward support)
query_options.ignoreOld = parseInt(lastTx);
floBlockchainAPI.readData(bobsFund.config.adminID, query_options).then(result => {
let txQueries = [];
result.items.reverse().forEach(d => {
let fund = bobsFund.parse(d.data);
if (d.senders.has(bobsFund.config.adminID) && !/close:/.test(d.data)) {
let fund_id = d.data.match(/continue: [a-z0-9]{64}\|/);
if (!fund_id) {
fund_id = d.txid;
let values = [fund_id, fund.start_date, fund.BTC_base, fund.USD_base, fund.fee, fund.duration];
if (fund.tapoutInterval)
values.push(fund.topoutWindow, fund.tapoutInterval.join(','));
else
values.push(null, null);
txQueries.push(["INSERT INTO BobsFund(fund_id, begin_date, btc_base, usd_base, fee, duration, tapout_window, tapout_interval) VALUE (?) ON DUPLICATE KEY UPDATE fund_id=fund_id", [values]])
} else
fund_id = fund_id.pop().match(/[a-z0-9]{64}/).pop();
let investments = Object.entries(fund.investments).map(a => [fund_id, a[0], a[1].amount]);
txQueries.push(["INSERT INTO BobsFundInvestments(fund_id, floID, amount_in) VALUES ? ON DUPLICATE KEY UPDATE floID=floID", [investments]]);
}
else {
let fund_id = d.data.match(/close: [a-z0-9]{64}\|/);
if (fund_id) {
fund_id = fund_id.pop().match(/[a-z0-9]{64}/).pop();
let closing_details = Object.entries(fund.investments).filter(a => typeof a[1].closed === "object" && a[1].closed.amountFinal).pop(); //only one close-fund will be there in a tx
if (closing_details)
txQueries.push(["UPDATE BobsFundInvestments SET close_id=?, amount_out=? WHERE fund_id=? AND floID=?",
[d.txid, closing_details[1].closed.amountFinal, fund_id, closing_details[0]]])
}
}
});
txQueries.push(["INSERT INTO LastTx (floID, txid) VALUE (?) ON DUPLICATE KEY UPDATE txid=?",
[[bobsFund.config.adminID, result.lastItem], result.lastItem]])
DB.transaction(txQueries)
.then(_ => resolve(result.lastItem))
.catch(error => reject(["Bobs-Fund refresh data failed!", error]));
}).catch(error => reject(error))
}).catch(error => reject(error))
})
}
function closeFund(fund_id, floID, ref) {
return new Promise((resolve, reject) => {
DB.query("SELECT r_status, close_id FROM CloseFundTransact WHERE fund_id=? AND floID=?", [fund_id, floID]).then(result => {
if (result.length)
return reject(INVALID(eCode.DUPLICATE_ENTRY, result[0].r_status == pCode.STATUS_SUCCESS ? `Fund investment already closed (${result[0].close_id})` : `Fund closing already in process`));
DB.query("SELECT * FROM BobsFund WHERE fund_id=?", [fund_id]).then(result => {
if (!result.length)
return reject(INVALID(eCode.NOT_FOUND, 'Fund not found'));
let fund = result[0];
DB.query("SELECT * FROM BobsFundInvestments WHERE fund_id=? AND floID=?", [fund_id, floID]).then(result => {
if (!result.length)
return reject(INVALID(eCode.NOT_OWNER, 'User is not an investor of this fund'));
let investment = result[0];
if (investment.close_id)
return reject(INVALID(eCode.DUPLICATE_ENTRY, `Fund investment already closed (${investment.close_id})`));
let cur_date = new Date();
if (cur_date < bobsFund.dateAdder(fund.begin_date, fund.duration)) {
let flag = false;
if (fund.tapout_window && fund.tapout_interval) {
let tapout_intervals = fund.tapout_interval.split(",");
for (let ti of tapout_intervals) {
let t_start = bobsFund.dateAdder(fund.begin_date, ti),
t_end = bobsFund.dateAdder(t_start, fund.tapout_window);
if (t_start < cur_date && cur_date < t_end) {
flag = true; break;
}
}
}
if (!flag)
return reject(INVALID(eCode.INSUFFICIENT_PERIOD, 'Fund still in lock-in period'));
}
getRate.BTC_USD().then(btc_rate => {
getRate.USD_INR().then(usd_rate => {
let net_value = bobsFund.calcNetValue(fund.btc_base, btc_rate, fund.usd_base, usd_rate, investment.amount_in, fund.fee)
DB.query("INSERT INTO CloseFundTransact(fund_id, floID, amount, end_date, btc_net, usd_net, ref_sign, r_status) VALUE (?)", [[fund_id, floID, net_value, cur_date, btc_rate, usd_rate, ref, pCode.STATUS_PENDING]])
.then(result => resolve({ "USD_net": usd_rate, "BTC_net": btc_rate, "amount_out": net_value, "end_date": cur_date }))
.catch(error => reject(error))
}).catch(error => reject(error))
}).catch(error => reject(error))
}).catch(error => reject(error))
}).catch(error => reject(error))
}).catch(error => reject(error))
})
}
function checkFundBalance(prior_time) {
return new Promise((resolve, reject) => {
prior_time = new Date(prior_time);
let cur_date = Date.now();
if (isNaN(prior_time) || prior_time.toString() == "Invalid Date")
return reject(INVALID(eCode.INVALID_VALUE, `Invalid Date for prior_time`));
let sql_query = "SELECT bf.begin_date, bf.btc_base, bf.usd_base, bf.fee, bf.duration, fi.amount_in, cf.amount AS amount_close FROM BobsFund AS bf" +
" INNER JOIN BobsFundInvestments AS fi ON bf.fund_id = fi.fund_id" +
" LEFT JOIN CloseFundTransact AS cf ON fi.fund_id = cf.fund_id AND fi.floID = cf.floID" +
" WHERE fi.close_id IS NULL AND (cf.r_status IS NULL OR cf.r_status NOT IN (?))";
DB.query(sql_query, [[pCode.STATUS_SUCCESS, pCode.STATUS_CONFIRMATION]]).then(result => {
getRate.BTC_USD().then(btc_rate => {
getRate.USD_INR().then(usd_rate => {
let pending = { require_amount_cash: 0, n_investment: 0 },
ready = { require_amount_cash: 0, n_investment: 0 },
upcoming = { require_amount_cash: 0, n_investment: 0 }
result.forEach(i => {
if (i.amount_close) {
pending.require_amount_cash += i.amount_close;
pending.n_investment++;
} else {
let end_date = bobsFund.dateAdder(i.begin_date, i.duration);
if (end_date < prior_time) {
let net_value = bobsFund.calcNetValue(i.btc_base, btc_rate, i.usd_base, usd_rate, i.amount_in, i.fee);
if (end_date > cur_date) {
upcoming.require_amount_cash += net_value;
upcoming.n_investment++;
} else {
ready.require_amount_cash += net_value;
ready.n_investment++;
}
}
}
})
pending.require_amount_cash = global.toStandardDecimal(pending.require_amount_cash);
ready.require_amount_cash = global.toStandardDecimal(ready.require_amount_cash);
upcoming.require_amount_cash = global.toStandardDecimal(upcoming.require_amount_cash);
pending.require_amount_btc = global.toStandardDecimal(pending.require_amount_cash / (btc_rate * usd_rate));
ready.require_amount_btc = global.toStandardDecimal(ready.require_amount_cash / (btc_rate * usd_rate));
upcoming.require_amount_btc = global.toStandardDecimal(upcoming.require_amount_cash / (btc_rate * usd_rate));
Promise.allSettled(sink_chest.list(sink_groups.BOBS_FUND)
.map(id => btcOperator.getBalance(btcOperator.convert.legacy2bech(id)))).then(result => {
let balance = result.filter(r => r.status === 'fulfilled').reduce((a, bal) => a += bal, 0);
resolve({ pending, ready, upcoming, balance });
}).catch(error => reject(error))
}).catch(error => reject(error))
}).catch(error => reject(error))
}).catch(error => reject(error))
})
}
module.exports = {
refresh(nodeList) {
refreshBlockchainData(nodeList)
.then(result => console.debug("Refreshed Bob's Fund data"))
.catch(error => console.error(error));
},
util: bobsFund,
checkFundBalance,
closeFund
}

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'use strict';
const DB = require("../database");
const { sink_chest, sink_groups } = require("../keys");
const eCode = require('../../docs/scripts/floExchangeAPI').errorCode;
const pCode = require('../../docs/scripts/floExchangeAPI').processCode;
const getRate = require('./conversion').getRate;
const blockchainBond = (function () {
const productStr = "Product: RanchiMall Bitcoin Bond";
const magnitude = m => {
switch (m) {
case "thousand": return 1000;
case "lakh": case "lakhs": return 100000;
case "million": return 1000000;
case "crore": case "crores": return 10000000;
default: return null;
}
}
const parseNumber = (str) => {
let n = 0,
g = 0;
str.toLowerCase().replace(/,/g, '').split(" ").forEach(s => {
if (!isNaN(s))
g = parseFloat(s);
else {
let m = magnitude(s);
if (m !== null) {
n += m * g;
g = 0;
}
}
});
return n + g;
}
const parsePeriod = (str) => {
let P = '', n = 0;
str.toLowerCase().replace(/,/g, '').split(" ").forEach(s => {
if (!isNaN(s))
n = parseFloat(s);
else switch (s) {
case "year(s)": case "year": case "years": P += (n + 'Y'); n = 0; break;
case "month(s)": case "month": case "months": P += (n + 'M'); n = 0; break;
case "day(s)": case "day": case "days": P += (n + 'D'); n = 0; break;
}
});
return P;
}
const dateFormat = (date = null) => {
let d = (date ? new Date(date) : new Date()).toDateString();
return [d.substring(8, 10), d.substring(4, 7), d.substring(11, 15)].join(" ");
}
const yearDiff = (d1 = null, d2 = null) => {
d1 = d1 ? new Date(d1) : new Date();
d2 = d2 ? new Date(d2) : new Date();
let y = d1.getYear() - d2.getYear(),
m = d1.getMonth() - d2.getMonth(),
d = d1.getDate() - d2.getDate()
return y + m / 12 + d / 365;
}
const dateAdder = function (start_date, duration) {
let date = new Date(start_date);
let y = parseInt(duration.match(/\d+Y/)),
m = parseInt(duration.match(/\d+M/)),
d = parseInt(duration.match(/\d+D/));
if (!isNaN(y))
date.setFullYear(date.getFullYear() + y);
if (!isNaN(m))
date.setMonth(date.getMonth() + m);
if (!isNaN(d))
date.setDate(date.getDate() + d);
return date;
}
function calcNetValue(BTC_base, BTC_net, startDate, minIpa, maxPeriod, cut, amount, USD_base, USD_net) {
let gain, duration, interest, net;
gain = (BTC_net - BTC_base) / BTC_base;
duration = yearDiff(Math.min(Date.now(), dateAdder(startDate, maxPeriod).getTime()), startDate);
interest = Math.max(cut * gain, minIpa * duration);
net = amount / USD_base;
net += net * interest;
return net * USD_net;
}
function stringify_main(BTC_base, start_date, guaranteed_interest, guarantee_period, gain_cut, amount, USD_base, lockin_period, floID) {
return [
`${productStr}`,
`Base value: ${BTC_base} USD`,
`Date of bond start: ${dateFormat(start_date)}`,
`Guaranteed interest: ${guaranteed_interest}% per annum simple for ${guarantee_period}`,
`Bond value: guaranteed interest or ${gain_cut}% of the gains whichever is higher`,
`Amount invested: Rs ${amount}`,
`USD INR rate at start: ${USD_base}`,
`Lockin period: ${lockin_period}`,
`FLO ID of Bond Holder: ${floID}`
].join("|");
}
function parse_main(data) {
//Data (add bond) sent by admin
let details = {};
data.split("|").forEach(d => {
d = d.split(': ');
switch (d[0].toLowerCase()) {
case "base value":
details["BTC_base"] = parseNumber(d[1].slice(0, -4)); break;
case "date of bond start":
details["startDate"] = new Date(d[1]); break;
case "guaranteed interest":
details["minIpa"] = parseFloat(d[1].match(/\d+%/)) / 100;
details["maxPeriod"] = parsePeriod(d[1].match(/for .+/).toString()); break;
case "bond value":
details["cut"] = parseFloat(d[1].match(/\d+%/)) / 100; break;
case "amount invested":
details["amount"] = parseNumber(d[1].substring(3)); break;
case "usd inr rate at start":
details["USD_base"] = parseFloat(d[1]); break;
case "lockin period":
details["lockinPeriod"] = parsePeriod(d[1]); break;
case "flo id of bond holder":
details["floID"] = d[1]; break;
}
});
return details;
}
function stringify_end(bond_id, end_date, BTC_net, USD_net, amount, ref_sign, payment_ref) {
return [
`${productStr}`,
`Bond: ${bond_id}`,
`End value: ${BTC_net} USD`,
`Date of bond end: ${dateFormat(end_date)}`,
`USD INR rate at end: ${USD_net}`,
`Amount withdrawn: Rs ${amount} via ${payment_ref}`,
`Reference: ${ref_sign}`
].join("|");
}
function parse_end(data) {
//Data (end bond) send by market nodes
let details = {};
data.split("|").forEach(d => {
d = d.split(': ');
switch (d[0].toLowerCase()) {
case "bond":
details["bondID"] = d[1]; break;
case "end value":
details["BTC_net"] = parseNumber(d[1].slice(0, -4)); break;
case "date of bond end":
details["endDate"] = new Date(d[1]); break;
case "amount withdrawn":
details["amountFinal"] = parseNumber(d[1].match(/\d.+ via/).toString());
details["payment_refRef"] = d[1].match(/via .+/).toString().substring(4); break;
case "usd inr rate at end":
details["USD_net"] = parseFloat(d[1]); break;
case "reference":
details["refSign"] = d[1]; break;
}
});
return details;
}
return {
productStr,
dateAdder,
dateFormat,
calcNetValue,
parse: {
main: parse_main,
end: parse_end
},
stringify: {
main: stringify_main,
end: stringify_end
}
}
})();
blockchainBond.config = {
adminID: "FBBstZ2GretgQqDP55yt8iVd4KNZkdvEzH",
application: "BlockchainBonds"
}
function refreshBlockchainData(nodeList = []) {
return new Promise((resolve, reject) => {
DB.query("SELECT txid FROM LastTx WHERE floID=?", [blockchainBond.config.adminID]).then(result => {
var query_options = {
senders: nodeList.concat(blockchainBond.config.adminID),
tx: true, filter: d => d.startsWith(blockchainBond.productStr)
};
let lastTx = result.length ? result[0].txid : undefined;
if (typeof lastTx == 'string' && /^[0-9a-f]{64}/i.test(lastTx))//lastTx is txid of last tx
query_options.after = lastTx;
else if (!isNaN(lastTx))//lastTx is tx count (*backward support)
query_options.ignoreOld = parseInt(lastTx);
floBlockchainAPI.readData(blockchainBond.config.adminID, query_options).then(result => {
let txQueries = [];
result.items.reverse().forEach(d => {
let bond = d.senders.has(blockchainBond.config.adminID) ? blockchainBond.parse.main(d.data) : null;
if (bond && bond.amount)
txQueries.push(["INSERT INTO BlockchainBonds(bond_id, floID, amount_in, begin_date, btc_base, usd_base, gain_cut, min_ipa, max_period, lockin_period) VALUE (?) ON DUPLICATE KEY UPDATE bond_id=bond_id",
[[d.txid, bond.floID, bond.amount, bond.startDate, bond.BTC_base, bond.USD_base, bond.cut, bond.minIpa, bond.maxPeriod, bond.lockinPeriod]]]);
else {
let details = blockchainBond.parse.end(d.data);
if (details.bondID && details.amountFinal)
txQueries.push(["UPDATE BlockchainBonds SET close_id=?, amount_out=? WHERE bond_id=?",
[d.txid, details.amountFinal, details.bondID]]);
}
});
txQueries.push(["INSERT INTO LastTx (floID, txid) VALUE (?) ON DUPLICATE KEY UPDATE txid=?",
[[blockchainBond.config.adminID, result.lastItem], result.lastItem]])
DB.transaction(txQueries)
.then(_ => resolve(result.lastItem))
.catch(error => reject(["Blockchain-bonds refresh data failed!", error]));
}).catch(error => reject(error))
}).catch(error => reject(error))
})
}
function closeBond(bond_id, floID, ref) {
return new Promise((resolve, reject) => {
DB.query("SELECT r_status, close_id FROM CloseBondTransact WHERE bond_id=?", [bond_id]).then(result => {
if (result.length)
return reject(INVALID(eCode.DUPLICATE_ENTRY, result[0].r_status == pCode.STATUS_SUCCESS ? `Bond already closed (${result[0].close_id})` : `Bond closing already in process`));
DB.query("SELECT * FROM BlockchainBonds WHERE bond_id=?", [bond_id]).then(result => {
if (!result.length)
return reject(INVALID(eCode.NOT_FOUND, 'Bond not found'));
let bond = result[0];
if (bond.floID !== floID)
return reject(INVALID(eCode.NOT_OWNER, 'Bond doesnot belong to the user'));
if (bond.close_id)
return reject(INVALID(eCode.DUPLICATE_ENTRY, `Bond already closed (${bond.close_id})`));
if (Date.now() < blockchainBond.dateAdder(bond.begin_date, bond.lockin_period).getTime())
return reject(INVALID(eCode.INSUFFICIENT_PERIOD, 'Bond still in lock-in period'));
getRate.BTC_USD().then(btc_rate => {
getRate.USD_INR().then(usd_rate => {
let end_date = new Date(),
net_value = blockchainBond.calcNetValue(bond.btc_base, btc_rate, bond.begin_date, bond.min_ipa, bond.max_period, bond.gain_cut, bond.amount_in, bond.usd_base, usd_rate);
DB.query("INSERT INTO CloseBondTransact(bond_id, floID, amount, end_date, btc_net, usd_net, ref_sign, r_status) VALUE (?)", [[bond_id, floID, net_value, end_date, btc_rate, usd_rate, ref, pCode.STATUS_PENDING]])
.then(result => resolve({ "USD_net": usd_rate, "BTC_net": btc_rate, "amount_out": net_value, "end_date": end_date }))
.catch(error => reject(error))
}).catch(error => reject(error))
}).catch(error => reject(error))
}).catch(error => reject(error))
}).catch(error => reject(error))
})
}
function checkBondBalance(prior_time) {
return new Promise((resolve, reject) => {
prior_time = new Date(prior_time);
let cur_date = Date.now();
if (isNaN(prior_time) || prior_time.toString() == "Invalid Date")
return reject(INVALID(eCode.INVALID_VALUE, `Invalid Date for prior_time`));
let sql_query = "SELECT bb.*, cb.amount AS amount_close FROM BlockchainBonds AS bb" +
" LEFT JOIN CloseBondTransact AS cb ON bb.bond_id = cb.bond_id" +
" WHERE bb.close_id IS NULL AND (cb.r_status IS NULL OR cb.r_status NOT IN (?))";
DB.query(sql_query, [[pCode.STATUS_SUCCESS, pCode.STATUS_CONFIRMATION]]).then(result => {
getRate.BTC_USD().then(btc_rate => {
getRate.USD_INR().then(usd_rate => {
let pending = { require_amount_cash: 0, n_bond: 0 },
ready = { require_amount_cash: 0, n_bond: 0 },
upcoming = { require_amount_cash: 0, n_bond: 0 }
result.forEach(bond => {
if (bond.amount_close) {
pending.require_amount_cash += bond.amount_close;
pending.n_bond++;
} else {
let end_date = blockchainBond.dateAdder(bond.begin_date, bond.lockin_period)
if (end_date < prior_time) {
let net_value = blockchainBond.calcNetValue(bond.btc_base, btc_rate, bond.begin_date, bond.min_ipa, bond.max_period, bond.gain_cut, bond.amount_in, bond.usd_base, usd_rate);
if (end_date > cur_date) {
upcoming.require_amount_cash += net_value;
upcoming.n_bond++;
} else {
ready.require_amount_cash += net_value;
ready.n_bond++;
}
}
}
});
pending.require_amount_cash = global.toStandardDecimal(pending.require_amount_cash);
ready.require_amount_cash = global.toStandardDecimal(ready.require_amount_cash);
upcoming.require_amount_cash = global.toStandardDecimal(upcoming.require_amount_cash);
pending.require_amount_btc = global.toStandardDecimal(pending.require_amount_cash / (btc_rate * usd_rate));
ready.require_amount_btc = global.toStandardDecimal(ready.require_amount_cash / (btc_rate * usd_rate));
upcoming.require_amount_btc = global.toStandardDecimal(upcoming.require_amount_cash / (btc_rate * usd_rate));
Promise.allSettled(sink_chest.list(sink_groups.BLOCKCHAIN_BONDS)
.map(id => btcOperator.getBalance(btcOperator.convert.legacy2bech(id)))).then(result => {
let balance = result.filter(r => r.status === 'fulfilled').reduce((a, bal) => a += bal, 0);
resolve({ pending, ready, upcoming, balance });
}).catch(error => reject(error))
}).catch(error => reject(error))
}).catch(error => reject(error))
}).catch(error => reject(error))
})
}
module.exports = {
refresh(nodeList) {
refreshBlockchainData(nodeList)
.then(result => console.debug("Refreshed Blockchain-bonds data"))
.catch(error => console.error(error));
},
util: blockchainBond,
checkBondBalance,
closeBond
}

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'use strict';
const DB = require("../database");
const eCode = require('../../docs/scripts/floExchangeAPI').errorCode;
const pCode = require('../../docs/scripts/floExchangeAPI').processCode;
const {
MIN_FUND,
TO_FIXED_VALUES,
TO_MAX_VALUE,
TO_MIN_VALUE,
FROM_FIXED_VALUES,
FROM_MAX_VALUE,
FROM_MIN_VALUE
} = require('../_constants')['convert'];
const allowedConversion = ["BTC"];
function BTC_INR() {
return new Promise((resolve, reject) => {
BTC_USD().then(btc_usd => {
USD_INR().then(usd_inr => {
resolve(btc_usd * usd_inr);
}).catch(error => reject(error))
}).catch(error => reject(error))
})
}
function BTC_USD() {
return new Promise((resolve, reject) => {
fetch('https://api.coinlore.net/api/ticker/?id=90').then(response => {
if (response.ok) {
response.json()
.then(result => resolve(result[0].price_usd))
.catch(error => reject(error));
} else
reject(response.status);
}).catch(error => reject(error));
});
}
function USD_INR() {
return new Promise((resolve, reject) => {
fetch('https://api.exchangerate-api.com/v4/latest/usd').then(response => {
if (response.ok) {
response.json()
.then(result => resolve(result.rates['INR']))
.catch(error => reject(error));
} else
reject(response.status);
}).catch(error => reject(error));
});
}
function getPoolAvailability(coin) {
return new Promise((resolve, reject) => {
if (!allowedConversion.includes(coin))
return reject(INVALID(eCode.INVALID_TOKEN_NAME, `Invalid coin (${coin})`));
let q = "SELECT mode, SUM(quantity) AS coin_val, SUM(amount) AS cash_val FROM (" +
"(SELECT amount, coin, quantity, mode, r_status FROM DirectConvert) UNION " +
"(SELECT amount, coin, quantity, mode, r_status FROM ConvertFund) " +
") AS T1 WHERE T1.coin=? AND T1.r_status NOT IN (?) GROUP BY T1.mode";
DB.query(q, [coin, [pCode.STATUS_REJECTED]]).then(result => {
let coin_net = 0, cash_net = 0;
for (let r of result)
if (r.mode == pCode.CONVERT_MODE_GET) {
coin_net -= r.coin_val;
cash_net += r.cash_val;
} else if (r.mode == pCode.CONVERT_MODE_PUT) {
coin_net += r.coin_val;
cash_net -= r.cash_val;
}
BTC_INR().then(rate => {
coin_net = coin_net * rate;
let cash_availability = cash_net - coin_net * MIN_FUND,
coin_availability = (coin_net - cash_net * MIN_FUND) / rate;
if (cash_availability < 0) cash_availability = 0;
if (coin_availability < 0) coin_availability = 0;
resolve({ cash: cash_availability, coin: coin_availability, rate })
}).catch(error => reject(error))
}).catch(error => reject(error))
})
}
function checkPoolBalance(coin, req_value, mode) {
return new Promise((resolve, reject) => {
getPoolAvailability(coin).then(result => {
let availability = -1;
if (mode == pCode.CONVERT_MODE_GET) {
availability = result.coin;
req_value = req_value / result.rate; //convert to coin value
}
else if (mode == pCode.CONVERT_MODE_PUT) {
availability = result.cash;
req_value = req_value * result.rate; //convert to currency value
}
if (req_value > availability)
reject(INVALID(eCode.INSUFFICIENT_FUND, `Insufficient convert! Availability: ${availability > 0 ? availability : 0}`));
else
resolve(true);
}).catch(error => reject(error))
})
}
function getConvertValues() {
return new Promise((resolve, reject) => {
getPoolAvailability("BTC").then(avail => {
let result = {};
if (avail.coin > 0) {
let coin_availability = global.toStandardDecimal(avail.coin * avail.rate); //convert to currency value
if (Array.isArray(TO_FIXED_VALUES) && TO_FIXED_VALUES.length)
result[pCode.CONVERT_MODE_GET] = TO_FIXED_VALUES.filter(a => a < coin_availability);
else if (!TO_MIN_VALUE || TO_MIN_VALUE <= coin_availability) {
result[pCode.CONVERT_MODE_GET] = { min: 0 };
result[pCode.CONVERT_MODE_GET].max = (!TO_MAX_VALUE || TO_MAX_VALUE >= coin_availability) ? coin_availability : TO_MAX_VALUE;
}
} else result[pCode.CONVERT_MODE_GET] = null;
if (avail.cash > 0) {
let cash_availability = global.toStandardDecimal(avail.cash / avail.rate); //convert to coin value
if (Array.isArray(FROM_FIXED_VALUES) && FROM_FIXED_VALUES.length)
result[pCode.CONVERT_MODE_PUT] = FROM_FIXED_VALUES.filter(a => a < cash_availability);
else if (!FROM_MIN_VALUE || FROM_MIN_VALUE <= cash_availability) {
result[pCode.CONVERT_MODE_PUT] = { min: 0 };
result[pCode.CONVERT_MODE_PUT].max = (!FROM_MAX_VALUE || FROM_MAX_VALUE >= cash_availability) ? cash_availability : FROM_MAX_VALUE;
}
} else result[pCode.CONVERT_MODE_PUT] = null;
resolve(result)
}).catch(error => reject(error))
})
}
function convertToCoin(floID, txid, coin, amount) {
return new Promise((resolve, reject) => {
if (!allowedConversion.includes(coin))
return reject(INVALID(eCode.INVALID_TOKEN_NAME, `Invalid coin (${coin})`));
else if (typeof amount !== "number" || amount <= 0)
return reject(INVALID(eCode.INVALID_NUMBER, `Invalid amount (${amount})`));
else if (Array.isArray(TO_FIXED_VALUES) && TO_FIXED_VALUES.length) {
if (!TO_FIXED_VALUES.includes(amount))
return reject(INVALID(eCode.INVALID_NUMBER, `Invalid amount (${amount})`));
} else if (TO_MIN_VALUE && TO_MIN_VALUE > amount || TO_MAX_VALUE && TO_MAX_VALUE < amount)
return reject(INVALID(eCode.INVALID_NUMBER, `Invalid amount (${amount})`));
DB.query("SELECT r_status FROM DirectConvert WHERE in_txid=? AND floID=? AND mode=?", [txid, floID, pCode.CONVERT_MODE_GET]).then(result => {
if (result.length)
return reject(INVALID(eCode.DUPLICATE_ENTRY, "Transaction already in process"));
checkPoolBalance(coin, amount, pCode.CONVERT_MODE_GET).then(result => {
DB.query("INSERT INTO DirectConvert(floID, in_txid, mode, coin, amount, r_status) VALUES (?)", [[floID, txid, pCode.CONVERT_MODE_GET, coin, amount, pCode.STATUS_PENDING]])
.then(result => resolve("Conversion request in process"))
.catch(error => reject(error));
}).catch(error => {
if (error instanceof INVALID && error.ecode === eCode.INSUFFICIENT_FUND)
DB.query("INSERT INTO DirectConvert(floID, in_txid, mode, coin, amount, r_status) VALUES (?)", [[floID, txid, pCode.CONVERT_MODE_GET, coin, amount, pCode.STATUS_REJECTED]]).then(result => {
DB.query("INSERT INTO RefundConvert(floID, in_txid, asset_type, asset, r_status) VALUES (?)", [[floID, txid, pCode.ASSET_TYPE_TOKEN, floGlobals.currency, pCode.STATUS_PENDING]])
.then(_ => null).catch(error => console.error(error));
}).catch(error => console.error(error))
reject(error);
})
}).catch(error => reject(error))
});
}
function convertFromCoin(floID, txid, tx_hex, coin, quantity) {
return new Promise((resolve, reject) => {
if (!allowedConversion.includes(coin))
return reject(INVALID(eCode.INVALID_TOKEN_NAME, `Invalid coin (${coin})`));
else if (typeof quantity !== "number" || quantity <= 0)
return reject(INVALID(eCode.INVALID_NUMBER, `Invalid quantity (${quantity})`));
else if (Array.isArray(FROM_FIXED_VALUES) && FROM_FIXED_VALUES.length) {
if (!FROM_FIXED_VALUES.includes(quantity))
return reject(INVALID(eCode.INVALID_NUMBER, `Invalid quantity (${quantity})`));
} else if (FROM_MIN_VALUE && FROM_MIN_VALUE > quantity || FROM_MAX_VALUE && FROM_MAX_VALUE < quantity)
return reject(INVALID(eCode.INVALID_NUMBER, `Invalid quantity (${quantity})`));
else if (btcOperator.transactionID(tx_hex) !== txid)
return reject(INVALID(eCode.INVALID_TX_ID, `txid ${txid} doesnt match the tx-hex`));
DB.query("SELECT r_status FROM DirectConvert WHERE in_txid=? AND floID=? AND mode=?", [txid, floID, pCode.CONVERT_MODE_PUT]).then(result => {
if (result.length)
return reject(INVALID(eCode.DUPLICATE_ENTRY, "Transaction already in process"));
checkPoolBalance(coin, quantity, pCode.CONVERT_MODE_PUT).then(result => {
btcOperator.broadcastTx(tx_hex).then(b_txid => {
if (b_txid !== txid)
console.warn("broadcast TX-ID is not same as calculated TX-ID");
DB.query("INSERT INTO DirectConvert(floID, in_txid, mode, coin, quantity, r_status) VALUES (?)", [[floID, b_txid, pCode.CONVERT_MODE_PUT, coin, quantity, pCode.STATUS_PENDING]])
.then(result => resolve("Conversion request in process"))
.catch(error => reject(error));
}).catch(error => {
if (error === null)
reject(INVALID(eCode.INVALID_TX_ID, `Invalid transaction hex`));
else
reject(error);
})
}).catch(error => reject(error))
}).catch(error => reject(error))
})
}
function depositCurrencyFund(floID, txid, coin) {
return new Promise((resolve, reject) => {
if (floID !== floGlobals.adminID)
return reject(INVALID(eCode.ACCESS_DENIED, 'Access Denied'));
else if (!allowedConversion.includes(coin))
return reject(INVALID(eCode.INVALID_TOKEN_NAME, `Invalid coin (${coin})`));
DB.query("SELECT r_status FROM ConvertFund WHERE txid=? AND mode=?", [txid, pCode.CONVERT_MODE_GET]).then(result => {
if (result.length)
return reject(INVALID(eCode.DUPLICATE_ENTRY, "Transaction already in process"));
DB.query("INSERT INTO ConvertFund(txid, mode, coin, r_status) VALUES (?)", [[txid, pCode.CONVERT_MODE_GET, coin, pCode.STATUS_PROCESSING]])
.then(result => resolve("Deposit currency fund in process"))
.catch(error => reject(error))
}).catch(error => reject(error))
})
}
function depositCoinFund(floID, txid, coin) {
return new Promise((resolve, reject) => {
if (floID !== floGlobals.adminID)
return reject(INVALID(eCode.ACCESS_DENIED, 'Access Denied'));
else if (!allowedConversion.includes(coin))
return reject(INVALID(eCode.INVALID_TOKEN_NAME, `Invalid coin (${coin})`));
DB.query("SELECT r_status FROM ConvertFund WHERE txid=? AND mode=?", [txid, pCode.CONVERT_MODE_PUT]).then(result => {
if (result.length)
return reject(INVALID(eCode.DUPLICATE_ENTRY, "Transaction already in process"));
DB.query("INSERT INTO ConvertFund(txid, mode, coin, r_status) VALUES (?)", [[txid, pCode.CONVERT_MODE_PUT, coin, pCode.STATUS_PROCESSING]])
.then(result => resolve("Deposit coin fund in process"))
.catch(error => reject(error))
}).catch(error => reject(error))
})
}
function withdrawCurrencyFund(floID, coin, amount) {
return new Promise((resolve, reject) => {
if (floID !== floGlobals.adminID)
return reject(INVALID(eCode.ACCESS_DENIED, 'Access Denied'));
else if (!allowedConversion.includes(coin))
return reject(INVALID(eCode.INVALID_TOKEN_NAME, `Invalid coin (${coin})`));
DB.query("SELECT SUM(amount) AS deposit_amount FROM ConvertFund WHERE mode=? AND r_status=?", [pCode.CONVERT_MODE_GET, pCode.STATUS_SUCCESS]).then(r1 => {
DB.query("SELECT SUM(amount) AS withdraw_amount FROM ConvertFund WHERE mode=? AND r_status IN (?)", [pCode.CONVERT_MODE_PUT, [pCode.STATUS_SUCCESS, pCode.STATUS_PENDING, pCode.STATUS_CONFIRMATION]]).then(r2 => {
let available_amount = (r1[0].deposit_amount || 0) - (r2[0].withdraw_amount || 0);
if (available_amount < amount)
return reject(INVALID(eCode.INSUFFICIENT_BALANCE, "Insufficient convert-fund deposits to withdraw"));
DB.query("INSERT INTO ConvertFund(mode, coin, amount, r_status) VALUES (?)", [[pCode.CONVERT_MODE_PUT, coin, amount, pCode.STATUS_PENDING]])
.then(result => resolve("Withdraw currency fund in process"))
.catch(error => reject(error))
}).catch(error => reject(error))
}).catch(error => reject(error))
})
}
function withdrawCoinFund(floID, coin, quantity) {
return new Promise((resolve, reject) => {
if (floID !== floGlobals.adminID)
return reject(INVALID(eCode.ACCESS_DENIED, 'Access Denied'));
else if (!allowedConversion.includes(coin))
return reject(INVALID(eCode.INVALID_TOKEN_NAME, `Invalid coin (${coin})`));
DB.query("SELECT SUM(quantity) AS deposit_quantity FROM ConvertFund WHERE mode=? AND r_status=?", [pCode.CONVERT_MODE_PUT, pCode.STATUS_SUCCESS]).then(r1 => {
DB.query("SELECT SUM(quantity) AS withdraw_quantity FROM ConvertFund WHERE mode=? AND r_status IN (?)", [pCode.CONVERT_MODE_GET, [pCode.STATUS_SUCCESS, pCode.STATUS_PENDING]]).then(r2 => {
let available_quantity = (r1[0].deposit_quantity || 0) - (r2[0].withdraw_quantity || 0);
if (available_quantity < quantity)
return reject(INVALID(eCode.INSUFFICIENT_BALANCE, "Insufficient convert-fund deposits to withdraw"));
DB.query("INSERT INTO ConvertFund(mode, coin, quantity, r_status) VALUES (?)", [[pCode.CONVERT_MODE_GET, coin, quantity, pCode.STATUS_PENDING]])
.then(result => resolve("Withdraw currency fund in process"))
.catch(error => reject(error))
}).catch(error => reject(error))
}).catch(error => reject(error))
})
}
module.exports = {
getRate: {
BTC_USD,
USD_INR,
BTC_INR
},
getConvertValues,
convertToCoin,
convertFromCoin,
depositFund: {
coin: depositCoinFund,
currency: depositCurrencyFund
},
withdrawFund: {
coin: withdrawCoinFund,
currency: withdrawCurrencyFund
}
}

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exchangemarket/src/set_globals.js Normal file
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'use strict';
//fetch for node js (used in floBlockchainAPI.js)
global.fetch = require("node-fetch");
//Set browser paramaters from param.json (or param-default.json)
var param;
try {
param = require('../args/param.json');
} catch {
param = require('../args/param-default.json');
} finally {
for (let p in param)
global[p] = param[p];
}
global.toStandardDecimal = num => parseFloat((parseInt(num * 1e8) * 1e-8).toFixed(8))
if (!process.argv.includes("--debug"))
global.console.debug = () => null;
/*
//Trace the debug logs in node js
var debug = console.debug;
console.debug = function() {
debug.apply(console, arguments);
console.trace();
};
*/

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exchangemarket/start.js Normal file
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const start = require('./src/main');
start();