@bithomp/xrpl-api
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A Bithomp JavaScript/TypeScript library for interacting with the XRP Ledger
143 lines (142 loc) • 6.16 kB
JavaScript
;
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.createPaymentTransaction = createPaymentTransaction;
const lodash_1 = __importDefault(require("lodash"));
const xrpl_1 = require("xrpl");
const common_1 = require("../../common");
const utils_1 = require("../utils");
const memos_1 = require("../../parse/ledger/memos");
const client_1 = require("../../client");
function isMaxAdjustment(source) {
return source.maxAmount != null;
}
function isMinAdjustment(destination) {
return destination.minAmount != null;
}
function isXRPToXRPPayment(payment) {
const { source, destination } = payment;
const sourceCurrency = isMaxAdjustment(source) ? source.maxAmount.currency : source.amount.currency;
const destinationCurrency = isMinAdjustment(destination)
? destination.minAmount.currency
: destination.amount.currency;
return ((sourceCurrency === (0, client_1.getNativeCurrency)() || sourceCurrency === "drops") &&
(destinationCurrency === (0, client_1.getNativeCurrency)() || destinationCurrency === "drops"));
}
function isIOUWithoutCounterparty(amount) {
if (typeof amount === "object") {
if ("currency" in amount && amount.currency !== (0, client_1.getNativeCurrency)() && amount.currency !== "drops") {
return false;
}
if ("mpt_issuance_id" in amount && amount.mpt_issuance_id) {
return false;
}
if (amount.issuer == null &&
amount.counterparty == null) {
return true;
}
}
return false;
}
function applyAnyCounterpartyEncoding(payment) {
[payment.source, payment.destination].forEach((adjustment) => {
["amount", "minAmount", "maxAmount"].forEach((key) => {
if (isIOUWithoutCounterparty(adjustment[key])) {
adjustment[key].issuer = adjustment.address;
}
});
});
}
function createMaximalAmount(amount) {
const maxXRPValue = "100000000000";
const maxIOUValue = "999999999999999900000000000000000000000000000000000000000000000000000000000000000000000000000000";
let maxValue;
if (amount.currency === (0, client_1.getNativeCurrency)()) {
maxValue = maxXRPValue;
}
else if (amount.currency === "drops") {
maxValue = (0, common_1.xrpToDrops)(maxXRPValue);
}
else {
maxValue = maxIOUValue;
}
return Object.assign({}, amount, { value: maxValue });
}
function validateAndNormalizeAddress(address, expectedTag) {
const classicAddress = (0, utils_1.getClassicAccountAndTag)(address, expectedTag);
classicAddress.tag = classicAddress.tag === false ? undefined : classicAddress.tag;
return classicAddress;
}
function createPaymentTransaction(address, paymentArgument) {
const payment = lodash_1.default.cloneDeep(paymentArgument);
applyAnyCounterpartyEncoding(payment);
const sourceAddressAndTag = validateAndNormalizeAddress(payment.source.address, payment.source.tag);
const addressToVerifyAgainst = validateAndNormalizeAddress(address, undefined);
if (addressToVerifyAgainst.classicAccount !== sourceAddressAndTag.classicAccount) {
throw new Error("address must match payment.source.address");
}
if (addressToVerifyAgainst.tag != null &&
sourceAddressAndTag.tag != null &&
addressToVerifyAgainst.tag !== sourceAddressAndTag.tag) {
throw new Error("address includes a tag that does not match payment.source.tag");
}
const destinationAddressAndTag = validateAndNormalizeAddress(payment.destination.address, payment.destination.tag);
if ((isMaxAdjustment(payment.source) && isMinAdjustment(payment.destination)) ||
(!isMaxAdjustment(payment.source) && !isMinAdjustment(payment.destination))) {
throw new Error("payment must specify either (source.maxAmount " +
"and destination.amount) or (source.amount and destination.minAmount)");
}
const destinationAmount = isMinAdjustment(payment.destination)
? payment.destination.minAmount
: payment.destination.amount;
const sourceAmount = isMaxAdjustment(payment.source) ? payment.source.maxAmount : payment.source.amount;
const amount = isMinAdjustment(payment.destination) && !isXRPToXRPPayment(payment)
? createMaximalAmount(destinationAmount)
: destinationAmount;
const txJSON = {
TransactionType: "Payment",
Account: sourceAddressAndTag.classicAccount,
Destination: destinationAddressAndTag.classicAccount,
Amount: (0, utils_1.toRippledAmount)(amount),
Flags: 0,
};
if (payment.invoiceID != null) {
txJSON.InvoiceID = payment.invoiceID;
}
if (sourceAddressAndTag.tag != null) {
txJSON.SourceTag = sourceAddressAndTag.tag;
}
if (destinationAddressAndTag.tag != null) {
txJSON.DestinationTag = destinationAddressAndTag.tag;
}
if (payment.networkID != null) {
txJSON.NetworkID = payment.networkID;
}
if (payment.memos != null) {
txJSON.Memos = payment.memos.map(memos_1.formattedMemoToMemo);
}
if (payment.noDirectRipple === true) {
txJSON.Flags |= xrpl_1.PaymentFlags.tfNoRippleDirect;
}
if (payment.limitQuality === true) {
txJSON.Flags |= xrpl_1.PaymentFlags.tfLimitQuality;
}
if (!isXRPToXRPPayment(payment)) {
if (payment.allowPartialPayment || isMinAdjustment(payment.destination)) {
txJSON.Flags |= xrpl_1.PaymentFlags.tfPartialPayment;
}
txJSON.SendMax = (0, utils_1.toRippledAmount)(sourceAmount);
if (isMinAdjustment(payment.destination)) {
txJSON.DeliverMin = (0, utils_1.toRippledAmount)(destinationAmount);
}
if (payment.paths != null) {
txJSON.Paths = JSON.parse(payment.paths);
}
}
else if (payment.allowPartialPayment === true) {
throw new Error("XRP to XRP payments cannot be partial payments");
}
return txJSON;
}