289 lines
12 KiB
JavaScript
289 lines
12 KiB
JavaScript
"use strict";
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var __extends = (this && this.__extends) || (function () {
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var extendStatics = Object.setPrototypeOf ||
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({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
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function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
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return function (d, b) {
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extendStatics(d, b);
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function __() { this.constructor = d; }
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d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
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};
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})();
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var __importStar = (this && this.__importStar) || function (mod) {
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if (mod && mod.__esModule) return mod;
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var result = {};
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if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
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result["default"] = mod;
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return result;
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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var provider_1 = require("./provider");
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var bytes_1 = require("../utils/bytes");
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var properties_1 = require("../utils/properties");
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var web_1 = require("../utils/web");
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var errors = __importStar(require("../utils/errors"));
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// The transaction has already been sanitized by the calls in Provider
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function getTransactionString(transaction) {
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var result = [];
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for (var key in transaction) {
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if (transaction[key] == null) {
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continue;
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}
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var value = bytes_1.hexlify(transaction[key]);
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if ({ gasLimit: true, gasPrice: true, nonce: true, value: true }[key]) {
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value = bytes_1.hexStripZeros(value);
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}
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result.push(key + '=' + value);
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}
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return result.join('&');
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}
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function getResult(result) {
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// getLogs, getHistory have weird success responses
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if (result.status == 0 && (result.message === 'No records found' || result.message === 'No transactions found')) {
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return result.result;
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}
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if (result.status != 1 || result.message != 'OK') {
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// @TODO: not any
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var error = new Error('invalid response');
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error.result = JSON.stringify(result);
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throw error;
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}
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return result.result;
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}
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function getJsonResult(result) {
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if (result.jsonrpc != '2.0') {
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// @TODO: not any
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var error = new Error('invalid response');
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error.result = JSON.stringify(result);
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throw error;
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}
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if (result.error) {
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// @TODO: not any
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var error = new Error(result.error.message || 'unknown error');
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if (result.error.code) {
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error.code = result.error.code;
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}
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if (result.error.data) {
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error.data = result.error.data;
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}
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throw error;
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}
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return result.result;
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}
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// The blockTag was normalized as a string by the Provider pre-perform operations
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function checkLogTag(blockTag) {
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if (blockTag === 'pending') {
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throw new Error('pending not supported');
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}
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if (blockTag === 'latest') {
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return blockTag;
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}
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return parseInt(blockTag.substring(2), 16);
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}
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var EtherscanProvider = /** @class */ (function (_super) {
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__extends(EtherscanProvider, _super);
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function EtherscanProvider(network, apiKey) {
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var _this = _super.call(this, network) || this;
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errors.checkNew(_this, EtherscanProvider);
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var name = 'invalid';
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if (_this.network) {
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name = _this.network.name;
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}
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var baseUrl = null;
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switch (name) {
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case 'homestead':
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baseUrl = 'https://api.etherscan.io';
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break;
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case 'ropsten':
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baseUrl = 'https://api-ropsten.etherscan.io';
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break;
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case 'rinkeby':
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baseUrl = 'https://api-rinkeby.etherscan.io';
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break;
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case 'kovan':
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baseUrl = 'https://api-kovan.etherscan.io';
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break;
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default:
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throw new Error('unsupported network');
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}
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properties_1.defineReadOnly(_this, 'baseUrl', baseUrl);
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properties_1.defineReadOnly(_this, 'apiKey', apiKey);
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return _this;
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}
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EtherscanProvider.prototype.perform = function (method, params) {
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//if (!params) { params = {}; }
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var url = this.baseUrl;
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var apiKey = '';
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if (this.apiKey) {
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apiKey += '&apikey=' + this.apiKey;
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}
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switch (method) {
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case 'getBlockNumber':
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url += '/api?module=proxy&action=eth_blockNumber' + apiKey;
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return web_1.fetchJson(url, null, getJsonResult);
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case 'getGasPrice':
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url += '/api?module=proxy&action=eth_gasPrice' + apiKey;
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return web_1.fetchJson(url, null, getJsonResult);
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case 'getBalance':
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// Returns base-10 result
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url += '/api?module=account&action=balance&address=' + params.address;
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url += '&tag=' + params.blockTag + apiKey;
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return web_1.fetchJson(url, null, getResult);
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case 'getTransactionCount':
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url += '/api?module=proxy&action=eth_getTransactionCount&address=' + params.address;
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url += '&tag=' + params.blockTag + apiKey;
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return web_1.fetchJson(url, null, getJsonResult);
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case 'getCode':
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url += '/api?module=proxy&action=eth_getCode&address=' + params.address;
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url += '&tag=' + params.blockTag + apiKey;
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return web_1.fetchJson(url, null, getJsonResult);
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case 'getStorageAt':
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url += '/api?module=proxy&action=eth_getStorageAt&address=' + params.address;
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url += '&position=' + params.position;
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url += '&tag=' + params.blockTag + apiKey;
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return web_1.fetchJson(url, null, getJsonResult);
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case 'sendTransaction':
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url += '/api?module=proxy&action=eth_sendRawTransaction&hex=' + params.signedTransaction;
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url += apiKey;
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return web_1.fetchJson(url, null, getJsonResult);
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case 'getBlock':
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if (params.blockTag) {
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url += '/api?module=proxy&action=eth_getBlockByNumber&tag=' + params.blockTag;
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url += '&boolean=false';
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url += apiKey;
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return web_1.fetchJson(url, null, getJsonResult);
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}
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throw new Error('getBlock by blockHash not implmeneted');
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case 'getTransaction':
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url += '/api?module=proxy&action=eth_getTransactionByHash&txhash=' + params.transactionHash;
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url += apiKey;
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return web_1.fetchJson(url, null, getJsonResult);
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case 'getTransactionReceipt':
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url += '/api?module=proxy&action=eth_getTransactionReceipt&txhash=' + params.transactionHash;
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url += apiKey;
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return web_1.fetchJson(url, null, getJsonResult);
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case 'call':
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var transaction = getTransactionString(params.transaction);
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if (transaction) {
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transaction = '&' + transaction;
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}
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url += '/api?module=proxy&action=eth_call' + transaction;
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url += apiKey;
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return web_1.fetchJson(url, null, getJsonResult);
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case 'estimateGas':
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var transaction = getTransactionString(params.transaction);
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if (transaction) {
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transaction = '&' + transaction;
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}
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url += '/api?module=proxy&action=eth_estimateGas&' + transaction;
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url += apiKey;
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return web_1.fetchJson(url, null, getJsonResult);
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case 'getLogs':
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url += '/api?module=logs&action=getLogs';
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try {
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if (params.filter.fromBlock) {
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url += '&fromBlock=' + checkLogTag(params.filter.fromBlock);
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}
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if (params.filter.toBlock) {
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url += '&toBlock=' + checkLogTag(params.filter.toBlock);
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}
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if (params.filter.address) {
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url += '&address=' + params.filter.address;
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}
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// @TODO: We can handle slightly more complicated logs using the logs API
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if (params.filter.topics && params.filter.topics.length > 0) {
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if (params.filter.topics.length > 1) {
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throw new Error('unsupported topic format');
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}
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var topic0 = params.filter.topics[0];
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if (typeof (topic0) !== 'string' || topic0.length !== 66) {
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throw new Error('unsupported topic0 format');
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}
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url += '&topic0=' + topic0;
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}
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}
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catch (error) {
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return Promise.reject(error);
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}
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url += apiKey;
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var self = this;
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return web_1.fetchJson(url, null, getResult).then(function (logs) {
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var txs = {};
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var seq = Promise.resolve();
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logs.forEach(function (log) {
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seq = seq.then(function () {
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if (log.blockHash != null) {
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return null;
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}
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log.blockHash = txs[log.transactionHash];
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if (log.blockHash == null) {
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return self.getTransaction(log.transactionHash).then(function (tx) {
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txs[log.transactionHash] = tx.blockHash;
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log.blockHash = tx.blockHash;
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return null;
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});
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}
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return null;
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});
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});
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return seq.then(function () {
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return logs;
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});
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});
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case 'getEtherPrice':
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if (this.network.name !== 'homestead') {
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return Promise.resolve(0.0);
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}
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url += '/api?module=stats&action=ethprice';
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url += apiKey;
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return web_1.fetchJson(url, null, getResult).then(function (result) {
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return parseFloat(result.ethusd);
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});
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default:
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break;
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}
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return _super.prototype.perform.call(this, method, params);
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};
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// @TODO: Allow startBlock and endBlock to be Promises
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EtherscanProvider.prototype.getHistory = function (addressOrName, startBlock, endBlock) {
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var url = this.baseUrl;
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var apiKey = '';
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if (this.apiKey) {
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apiKey += '&apikey=' + this.apiKey;
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}
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if (startBlock == null) {
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startBlock = 0;
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}
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if (endBlock == null) {
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endBlock = 99999999;
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}
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return this.resolveName(addressOrName).then(function (address) {
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url += '/api?module=account&action=txlist&address=' + address;
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url += '&startblock=' + startBlock;
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url += '&endblock=' + endBlock;
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url += '&sort=asc' + apiKey;
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return web_1.fetchJson(url, null, getResult).then(function (result) {
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var output = [];
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result.forEach(function (tx) {
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['contractAddress', 'to'].forEach(function (key) {
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if (tx[key] == '') {
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delete tx[key];
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}
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});
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if (tx.creates == null && tx.contractAddress != null) {
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tx.creates = tx.contractAddress;
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}
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var item = provider_1.Provider.checkTransactionResponse(tx);
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if (tx.timeStamp) {
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item.timestamp = parseInt(tx.timeStamp);
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}
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output.push(item);
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});
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return output;
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});
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});
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};
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return EtherscanProvider;
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}(provider_1.Provider));
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exports.EtherscanProvider = EtherscanProvider;
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