@onekeyfe/blockchain-link
Version:
High-level javascript interface for blockchain communication
807 lines (806 loc) • 31.7 kB
JavaScript
"use strict";
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__assign = Object.assign || function(t) {
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s = arguments[i];
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t[p] = s[p];
}
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};
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};
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});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
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};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
var ripple_lib_1 = require("ripple-lib");
var bignumber_js_1 = __importDefault(require("bignumber.js"));
var errors_1 = require("../../constants/errors");
var constants_1 = require("../../constants");
var utils = __importStar(require("./utils"));
var common_1 = __importDefault(require("../common"));
var common = new common_1.default(postMessage);
var rippleApi;
var pingTimeout;
var DEFAULT_TIMEOUT = 20 * 1000;
var DEFAULT_PING_TIMEOUT = 3 * 60 * 1000;
var endpoints = [];
var RESERVE = {
BASE: '20000000',
OWNER: '5000000',
};
var setPingTimeout = function () {
if (pingTimeout) {
clearTimeout(pingTimeout);
}
pingTimeout = setTimeout(onPing, common.getSettings().pingTimeout || DEFAULT_PING_TIMEOUT);
};
var onPing = function () { return __awaiter(void 0, void 0, void 0, function () {
var error_1;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (!(rippleApi && rippleApi.isConnected())) return [3, 6];
if (!(common.hasSubscriptions() || common.getSettings().keepAlive)) return [3, 5];
_a.label = 1;
case 1:
_a.trys.push([1, 3, , 4]);
return [4, rippleApi.getServerInfo()];
case 2:
_a.sent();
return [3, 4];
case 3:
error_1 = _a.sent();
common.debug("Error in timeout ping request: " + error_1);
return [3, 4];
case 4:
setPingTimeout();
return [3, 6];
case 5:
rippleApi.disconnect();
_a.label = 6;
case 6: return [2];
}
});
}); };
var cleanup = function () {
if (pingTimeout) {
clearTimeout(pingTimeout);
}
if (rippleApi) {
rippleApi.removeAllListeners();
rippleApi = undefined;
}
endpoints = [];
common.removeAddresses(common.getAddresses());
common.clearSubscriptions();
};
var connect = function () { return __awaiter(void 0, void 0, void 0, function () {
var _a, server, timeout, api, error_2;
return __generator(this, function (_b) {
switch (_b.label) {
case 0:
if (rippleApi) {
if (rippleApi.isConnected())
return [2, rippleApi];
}
_a = common.getSettings(), server = _a.server, timeout = _a.timeout;
if (!server || !Array.isArray(server) || server.length < 1) {
throw new errors_1.CustomError('connect', 'Endpoint not set');
}
if (endpoints.length < 1) {
endpoints = common.shuffleEndpoints(server.slice(0));
}
common.debug('Connecting to', endpoints[0]);
_b.label = 1;
case 1:
_b.trys.push([1, 3, , 4]);
api = new ripple_lib_1.RippleAPI({
server: endpoints[0],
timeout: timeout || DEFAULT_TIMEOUT,
});
api.connection.reconnect = function () { return new Promise(function () { }); };
return [4, api.connect()];
case 2:
_b.sent();
return [3, 4];
case 3:
error_2 = _b.sent();
common.debug('Websocket connection failed');
rippleApi = undefined;
endpoints.splice(0, 1);
if (endpoints.length < 1) {
throw new errors_1.CustomError('connect', 'All backends are down');
}
return [2, connect()];
case 4:
api.on('ledger', function (ledger) {
RESERVE.BASE = api.xrpToDrops(ledger.reserveBaseXRP);
RESERVE.OWNER = api.xrpToDrops(ledger.reserveIncrementXRP);
});
api.on('disconnected', function () {
common.response({ id: -1, type: constants_1.RESPONSES.DISCONNECTED, payload: true });
cleanup();
});
common.response({ id: -1, type: constants_1.RESPONSES.CONNECTED });
rippleApi = api;
return [2, rippleApi];
}
});
}); };
var getInfo = function (data) { return __awaiter(void 0, void 0, void 0, function () {
var api, info, url, error_3;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
_a.trys.push([0, 3, 4, 5]);
return [4, connect()];
case 1:
api = _a.sent();
return [4, api.getServerInfo()];
case 2:
info = _a.sent();
url = api.connection._url;
common.response({
id: data.id,
type: constants_1.RESPONSES.GET_INFO,
payload: __assign({ url: url }, utils.transformServerInfo(info)),
});
return [3, 5];
case 3:
error_3 = _a.sent();
common.errorHandler({ id: data.id, error: utils.transformError(error_3) });
return [3, 5];
case 4:
setPingTimeout();
return [7];
case 5: return [2];
}
});
}); };
var getMempoolAccountInfo = function (account) { return __awaiter(void 0, void 0, void 0, function () {
var api, info;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4, connect()];
case 1:
api = _a.sent();
return [4, api.request('account_info', {
account: account,
ledger_index: 'current',
queue: true,
})];
case 2:
info = _a.sent();
return [2, {
xrpBalance: info.account_data.Balance,
sequence: info.account_data.Sequence,
txs: info.queue_data ? info.queue_data.txn_count : 0,
}];
}
});
}); };
var getRawTransactionsData = function (options) { return __awaiter(void 0, void 0, void 0, function () {
var api;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4, connect()];
case 1:
api = _a.sent();
return [2, api.request('account_tx', options)];
}
});
}); };
var getAccountInfo = function (data) { return __awaiter(void 0, void 0, void 0, function () {
var payload, account, api, info, ownersReserve, reserve, misc, error_4, mempoolInfo, misc, reserve, error_5, requestOptions, transactionsData, error_6;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
payload = data.payload;
account = {
descriptor: payload.descriptor,
balance: '0',
availableBalance: '0',
empty: true,
history: {
total: -1,
unconfirmed: 0,
transactions: undefined,
},
misc: {
sequence: 0,
reserve: RESERVE.BASE,
},
};
_a.label = 1;
case 1:
_a.trys.push([1, 4, , 5]);
return [4, connect()];
case 2:
api = _a.sent();
return [4, api.getAccountInfo(payload.descriptor)];
case 3:
info = _a.sent();
ownersReserve = info.ownerCount > 0
? new bignumber_js_1.default(info.ownerCount).times(RESERVE.OWNER).toString()
: '0';
reserve = new bignumber_js_1.default(RESERVE.BASE).plus(ownersReserve).toString();
misc = {
sequence: info.sequence,
reserve: reserve,
};
account.misc = misc;
account.balance = api.xrpToDrops(info.xrpBalance);
account.availableBalance = new bignumber_js_1.default(account.balance).minus(reserve).toString();
account.empty = false;
return [3, 5];
case 4:
error_4 = _a.sent();
if (error_4.data && error_4.data.error === 'actNotFound') {
common.response({
id: data.id,
type: constants_1.RESPONSES.GET_ACCOUNT_INFO,
payload: account,
});
}
else {
common.errorHandler({ id: data.id, error: utils.transformError(error_4) });
}
return [2];
case 5:
_a.trys.push([5, 7, , 8]);
return [4, getMempoolAccountInfo(payload.descriptor)];
case 6:
mempoolInfo = _a.sent();
misc = account.misc;
reserve = misc && typeof misc.reserve === 'string' ? misc.reserve : RESERVE.BASE;
account.availableBalance = new bignumber_js_1.default(mempoolInfo.xrpBalance).minus(reserve).toString();
account.misc.sequence = mempoolInfo.sequence;
account.history.unconfirmed = mempoolInfo.txs;
return [3, 8];
case 7:
error_5 = _a.sent();
return [3, 8];
case 8:
if (payload.details !== 'txs') {
common.response({
id: data.id,
type: constants_1.RESPONSES.GET_ACCOUNT_INFO,
payload: account,
});
return [2];
}
_a.label = 9;
case 9:
_a.trys.push([9, 11, , 12]);
requestOptions = {
account: payload.descriptor,
ledger_index_min: payload.from ? payload.from : undefined,
ledger_index_max: payload.to ? payload.to : undefined,
limit: payload.pageSize || 25,
marker: payload.marker,
};
return [4, getRawTransactionsData(requestOptions)];
case 10:
transactionsData = _a.sent();
account.history.transactions = transactionsData.transactions.map(function (raw) {
return utils.transformTransaction(payload.descriptor, raw.tx);
});
common.response({
id: data.id,
type: constants_1.RESPONSES.GET_ACCOUNT_INFO,
payload: __assign(__assign({}, account), { marker: transactionsData.marker }),
});
return [3, 12];
case 11:
error_6 = _a.sent();
common.errorHandler({ id: data.id, error: utils.transformError(error_6) });
return [3, 12];
case 12: return [2];
}
});
}); };
var getTransaction = function (data) { return __awaiter(void 0, void 0, void 0, function () {
var payload, api, tx, error_7;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
payload = data.payload;
_a.label = 1;
case 1:
_a.trys.push([1, 4, 5, 6]);
return [4, connect()];
case 2:
api = _a.sent();
return [4, api.getTransaction(payload)];
case 3:
tx = _a.sent();
common.response({
id: data.id,
type: constants_1.RESPONSES.GET_TRANSACTION,
payload: {
type: 'ripple',
tx: tx,
},
});
return [3, 6];
case 4:
error_7 = _a.sent();
common.errorHandler({ id: data.id, error: utils.transformError(error_7) });
return [3, 6];
case 5:
setPingTimeout();
return [7];
case 6: return [2];
}
});
}); };
var estimateFee = function (data) { return __awaiter(void 0, void 0, void 0, function () {
var api, fee, drops_1, payload, error_8;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
_a.trys.push([0, 3, 4, 5]);
return [4, connect()];
case 1:
api = _a.sent();
return [4, api.getFee()];
case 2:
fee = _a.sent();
drops_1 = api.xrpToDrops(fee);
if (new bignumber_js_1.default(drops_1).gt('2000')) {
drops_1 = '12';
}
payload = data.payload && Array.isArray(data.payload.blocks)
? data.payload.blocks.map(function () { return ({ feePerUnit: drops_1 }); })
: [{ feePerUnit: drops_1 }];
common.response({
id: data.id,
type: constants_1.RESPONSES.ESTIMATE_FEE,
payload: payload,
});
return [3, 5];
case 3:
error_8 = _a.sent();
common.errorHandler({ id: data.id, error: utils.transformError(error_8) });
return [3, 5];
case 4:
setPingTimeout();
return [7];
case 5: return [2];
}
});
}); };
var pushTransaction = function (data) { return __awaiter(void 0, void 0, void 0, function () {
var api, info, error_9;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
_a.trys.push([0, 3, 4, 5]);
return [4, connect()];
case 1:
api = _a.sent();
return [4, api.submit(data.payload.toUpperCase())];
case 2:
info = _a.sent();
if (info.resultCode === 'tesSUCCESS') {
common.response({
id: data.id,
type: constants_1.RESPONSES.PUSH_TRANSACTION,
payload: info.tx_json.hash,
});
}
else {
common.errorHandler({ id: data.id, error: { message: info.resultMessage } });
return [2];
}
return [3, 5];
case 3:
error_9 = _a.sent();
common.errorHandler({ id: data.id, error: utils.transformError(error_9) });
return [3, 5];
case 4:
setPingTimeout();
return [7];
case 5: return [2];
}
});
}); };
var onNewBlock = function (event) {
setPingTimeout();
common.response({
id: -1,
type: constants_1.RESPONSES.NOTIFICATION,
payload: {
type: 'block',
payload: {
blockHeight: event.ledgerVersion,
blockHash: event.ledgerHash,
},
},
});
};
var onTransaction = function (event) {
setPingTimeout();
if (event.type !== 'transaction')
return;
var tx = event.transaction;
if (event.transaction.TransactionType !== 'Payment')
return;
var notify = function (descriptor) {
common.response({
id: -1,
type: constants_1.RESPONSES.NOTIFICATION,
payload: {
type: 'notification',
payload: {
descriptor: descriptor,
tx: utils.transformTransaction(descriptor, __assign(__assign({}, event), tx)),
},
},
});
};
var subscribed = common.getAddresses();
var sent = subscribed.find(function (a) { return a === tx.Account; });
if (sent)
notify(sent);
var recv = subscribed.find(function (a) { return a === tx.Destination; });
if (recv)
notify(recv);
};
var subscribeAccounts = function (accounts) { return __awaiter(void 0, void 0, void 0, function () {
var api, prevAddresses, uniqueAddresses;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4, connect()];
case 1:
api = _a.sent();
prevAddresses = common.getAddresses();
common.addAccounts(accounts);
uniqueAddresses = common.getAddresses().filter(function (a) { return prevAddresses.indexOf(a) < 0; });
if (!(uniqueAddresses.length > 0)) return [3, 3];
if (!common.getSubscription('notification')) {
api.connection.on('transaction', onTransaction);
common.addSubscription('notification');
}
return [4, api.request('subscribe', {
accounts_proposed: uniqueAddresses,
})];
case 2:
_a.sent();
_a.label = 3;
case 3: return [2, { subscribed: common.getAddresses().length > 0 }];
}
});
}); };
var subscribeAddresses = function (addresses) { return __awaiter(void 0, void 0, void 0, function () {
var api, uniqueAddresses, request;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4, connect()];
case 1:
api = _a.sent();
uniqueAddresses = common.addAddresses(addresses);
if (!(uniqueAddresses.length > 0)) return [3, 3];
if (!common.getSubscription('transaction')) {
api.connection.on('transaction', onTransaction);
common.addSubscription('transaction');
}
request = {
accounts_proposed: uniqueAddresses,
};
return [4, api.request('subscribe', request)];
case 2:
_a.sent();
_a.label = 3;
case 3: return [2, { subscribed: common.getAddresses().length > 0 }];
}
});
}); };
var subscribeBlock = function () { return __awaiter(void 0, void 0, void 0, function () {
var api;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (!!common.getSubscription('ledger')) return [3, 2];
return [4, connect()];
case 1:
api = _a.sent();
api.on('ledger', onNewBlock);
common.addSubscription('ledger');
_a.label = 2;
case 2: return [2, { subscribed: true }];
}
});
}); };
var subscribe = function (data) { return __awaiter(void 0, void 0, void 0, function () {
var payload, response, error_10;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
payload = data.payload;
_a.label = 1;
case 1:
_a.trys.push([1, 9, 10, 11]);
response = void 0;
if (!(payload.type === 'accounts')) return [3, 3];
return [4, subscribeAccounts(payload.accounts)];
case 2:
response = _a.sent();
return [3, 8];
case 3:
if (!(payload.type === 'addresses')) return [3, 5];
return [4, subscribeAddresses(payload.addresses)];
case 4:
response = _a.sent();
return [3, 8];
case 5:
if (!(payload.type === 'block')) return [3, 7];
return [4, subscribeBlock()];
case 6:
response = _a.sent();
return [3, 8];
case 7: throw new errors_1.CustomError('invalid_param', '+type');
case 8:
common.response({
id: data.id,
type: constants_1.RESPONSES.SUBSCRIBE,
payload: response,
});
return [3, 11];
case 9:
error_10 = _a.sent();
common.errorHandler({ id: data.id, error: utils.transformError(error_10) });
return [3, 11];
case 10:
setPingTimeout();
return [7];
case 11: return [2];
}
});
}); };
var unsubscribeAddresses = function (addresses) { return __awaiter(void 0, void 0, void 0, function () {
var api, all;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4, connect()];
case 1:
api = _a.sent();
if (!!addresses) return [3, 3];
all = common.getAddresses();
common.removeAccounts(common.getAccounts());
common.removeAddresses(all);
return [4, api.request('unsubscribe', {
accounts_proposed: all,
})];
case 2:
_a.sent();
return [3, 5];
case 3:
common.removeAddresses(addresses);
return [4, api.request('unsubscribe', {
accounts_proposed: addresses,
})];
case 4:
_a.sent();
_a.label = 5;
case 5:
if (common.getAccounts().length < 1) {
api.connection.removeListener('transaction', onTransaction);
common.removeSubscription('transaction');
}
return [2];
}
});
}); };
var unsubscribeAccounts = function (accounts) { return __awaiter(void 0, void 0, void 0, function () {
var prevAddresses, addresses, uniqueAddresses;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
prevAddresses = common.getAddresses();
common.removeAccounts(accounts || common.getAccounts());
addresses = common.getAddresses();
uniqueAddresses = prevAddresses.filter(function (a) { return addresses.indexOf(a) < 0; });
return [4, unsubscribeAddresses(uniqueAddresses)];
case 1:
_a.sent();
return [2];
}
});
}); };
var unsubscribeBlock = function () { return __awaiter(void 0, void 0, void 0, function () {
var api;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (!common.getSubscription('ledger'))
return [2];
return [4, connect()];
case 1:
api = _a.sent();
api.removeListener('ledger', onNewBlock);
common.removeSubscription('ledger');
return [2];
}
});
}); };
var unsubscribe = function (data) { return __awaiter(void 0, void 0, void 0, function () {
var payload, error_11;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
payload = data.payload;
_a.label = 1;
case 1:
_a.trys.push([1, 8, 9, 10]);
if (!(payload.type === 'accounts')) return [3, 3];
return [4, unsubscribeAccounts(payload.accounts)];
case 2:
_a.sent();
return [3, 7];
case 3:
if (!(payload.type === 'addresses')) return [3, 5];
return [4, unsubscribeAddresses(payload.addresses)];
case 4:
_a.sent();
return [3, 7];
case 5:
if (!(payload.type === 'block')) return [3, 7];
return [4, unsubscribeBlock()];
case 6:
_a.sent();
_a.label = 7;
case 7: return [3, 10];
case 8:
error_11 = _a.sent();
common.errorHandler({ id: data.id, error: utils.transformError(error_11) });
return [2];
case 9:
setPingTimeout();
return [7];
case 10:
common.response({
id: data.id,
type: constants_1.RESPONSES.UNSUBSCRIBE,
payload: { subscribed: common.getAddresses().length > 0 },
});
return [2];
}
});
}); };
var disconnect = function (data) { return __awaiter(void 0, void 0, void 0, function () {
var error_12;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (!rippleApi) {
common.response({ id: data.id, type: constants_1.RESPONSES.DISCONNECTED, payload: true });
return [2];
}
_a.label = 1;
case 1:
_a.trys.push([1, 3, , 4]);
return [4, rippleApi.disconnect()];
case 2:
_a.sent();
common.response({ id: data.id, type: constants_1.RESPONSES.DISCONNECTED, payload: true });
return [3, 4];
case 3:
error_12 = _a.sent();
common.errorHandler({ id: data.id, error: utils.transformError(error_12) });
return [3, 4];
case 4: return [2];
}
});
}); };
onmessage = function (event) {
if (!event.data)
return;
var data = event.data;
common.debug('onmessage', data);
switch (data.type) {
case constants_1.MESSAGES.HANDSHAKE:
common.setSettings(data.settings);
break;
case constants_1.MESSAGES.CONNECT:
connect()
.then(function () {
common.response({ id: data.id, type: constants_1.RESPONSES.CONNECT, payload: true });
})
.catch(function (error) {
return common.errorHandler({ id: data.id, error: utils.transformError(error) });
});
break;
case constants_1.MESSAGES.GET_INFO:
getInfo(data);
break;
case constants_1.MESSAGES.GET_ACCOUNT_INFO:
getAccountInfo(data);
break;
case constants_1.MESSAGES.GET_TRANSACTION:
getTransaction(data);
break;
case constants_1.MESSAGES.ESTIMATE_FEE:
estimateFee(data);
break;
case constants_1.MESSAGES.PUSH_TRANSACTION:
pushTransaction(data);
break;
case constants_1.MESSAGES.SUBSCRIBE:
subscribe(data);
break;
case constants_1.MESSAGES.UNSUBSCRIBE:
unsubscribe(data);
break;
case constants_1.MESSAGES.DISCONNECT:
disconnect(data);
break;
case 'terminate':
cleanup();
break;
default:
common.errorHandler({
id: data.id,
error: new errors_1.CustomError('worker_unknown_request', "+" + data.type),
});
break;
}
};
common.handshake();