405 lines
17 KiB
JavaScript
405 lines
17 KiB
JavaScript
"use strict";
|
|
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
|
|
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
|
|
return new (P || (P = Promise))(function (resolve, reject) {
|
|
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
|
|
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
|
|
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
|
|
step((generator = generator.apply(thisArg, _arguments || [])).next());
|
|
});
|
|
};
|
|
import { hexlify, hexValue, isHexString } from "@ethersproject/bytes";
|
|
import { deepCopy, defineReadOnly } from "@ethersproject/properties";
|
|
import { accessListify } from "@ethersproject/transactions";
|
|
import { fetchJson } from "@ethersproject/web";
|
|
import { showThrottleMessage } from "./formatter";
|
|
import { Logger } from "@ethersproject/logger";
|
|
import { version } from "./_version";
|
|
const logger = new Logger(version);
|
|
import { BaseProvider } from "./base-provider";
|
|
// The transaction has already been sanitized by the calls in Provider
|
|
function getTransactionPostData(transaction) {
|
|
const result = {};
|
|
for (let key in transaction) {
|
|
if (transaction[key] == null) {
|
|
continue;
|
|
}
|
|
let value = transaction[key];
|
|
// Quantity-types require no leading zero, unless 0
|
|
if ({ type: true, gasLimit: true, gasPrice: true, nonce: true, value: true }[key]) {
|
|
value = hexValue(hexlify(value));
|
|
}
|
|
else if (key === "accessList") {
|
|
value = "[" + accessListify(value).map((set) => {
|
|
return `{address:"${set.address}",storageKeys:["${set.storageKeys.join('","')}"]}`;
|
|
}).join(",") + "]";
|
|
}
|
|
else {
|
|
value = hexlify(value);
|
|
}
|
|
result[key] = value;
|
|
}
|
|
return result;
|
|
}
|
|
function getResult(result) {
|
|
// getLogs, getHistory have weird success responses
|
|
if (result.status == 0 && (result.message === "No records found" || result.message === "No transactions found")) {
|
|
return result.result;
|
|
}
|
|
if (result.status != 1 || result.message != "OK") {
|
|
const error = new Error("invalid response");
|
|
error.result = JSON.stringify(result);
|
|
if ((result.result || "").toLowerCase().indexOf("rate limit") >= 0) {
|
|
error.throttleRetry = true;
|
|
}
|
|
throw error;
|
|
}
|
|
return result.result;
|
|
}
|
|
function getJsonResult(result) {
|
|
// This response indicates we are being throttled
|
|
if (result && result.status == 0 && result.message == "NOTOK" && (result.result || "").toLowerCase().indexOf("rate limit") >= 0) {
|
|
const error = new Error("throttled response");
|
|
error.result = JSON.stringify(result);
|
|
error.throttleRetry = true;
|
|
throw error;
|
|
}
|
|
if (result.jsonrpc != "2.0") {
|
|
// @TODO: not any
|
|
const error = new Error("invalid response");
|
|
error.result = JSON.stringify(result);
|
|
throw error;
|
|
}
|
|
if (result.error) {
|
|
// @TODO: not any
|
|
const error = new Error(result.error.message || "unknown error");
|
|
if (result.error.code) {
|
|
error.code = result.error.code;
|
|
}
|
|
if (result.error.data) {
|
|
error.data = result.error.data;
|
|
}
|
|
throw error;
|
|
}
|
|
return result.result;
|
|
}
|
|
// The blockTag was normalized as a string by the Provider pre-perform operations
|
|
function checkLogTag(blockTag) {
|
|
if (blockTag === "pending") {
|
|
throw new Error("pending not supported");
|
|
}
|
|
if (blockTag === "latest") {
|
|
return blockTag;
|
|
}
|
|
return parseInt(blockTag.substring(2), 16);
|
|
}
|
|
const defaultApiKey = "9D13ZE7XSBTJ94N9BNJ2MA33VMAY2YPIRB";
|
|
function checkError(method, error, transaction) {
|
|
// Undo the "convenience" some nodes are attempting to prevent backwards
|
|
// incompatibility; maybe for v6 consider forwarding reverts as errors
|
|
if (method === "call" && error.code === Logger.errors.SERVER_ERROR) {
|
|
const e = error.error;
|
|
if (e && e.message.match("reverted") && isHexString(e.data)) {
|
|
return e.data;
|
|
}
|
|
}
|
|
// Get the message from any nested error structure
|
|
let message = error.message;
|
|
if (error.code === Logger.errors.SERVER_ERROR) {
|
|
if (error.error && typeof (error.error.message) === "string") {
|
|
message = error.error.message;
|
|
}
|
|
else if (typeof (error.body) === "string") {
|
|
message = error.body;
|
|
}
|
|
else if (typeof (error.responseText) === "string") {
|
|
message = error.responseText;
|
|
}
|
|
}
|
|
message = (message || "").toLowerCase();
|
|
// "Insufficient funds. The account you tried to send transaction from does not have enough funds. Required 21464000000000 and got: 0"
|
|
if (message.match(/insufficient funds/)) {
|
|
logger.throwError("insufficient funds for intrinsic transaction cost", Logger.errors.INSUFFICIENT_FUNDS, {
|
|
error, method, transaction
|
|
});
|
|
}
|
|
// "Transaction with the same hash was already imported."
|
|
if (message.match(/same hash was already imported|transaction nonce is too low/)) {
|
|
logger.throwError("nonce has already been used", Logger.errors.NONCE_EXPIRED, {
|
|
error, method, transaction
|
|
});
|
|
}
|
|
// "Transaction gas price is too low. There is another transaction with same nonce in the queue. Try increasing the gas price or incrementing the nonce."
|
|
if (message.match(/another transaction with same nonce/)) {
|
|
logger.throwError("replacement fee too low", Logger.errors.REPLACEMENT_UNDERPRICED, {
|
|
error, method, transaction
|
|
});
|
|
}
|
|
if (message.match(/execution failed due to an exception/)) {
|
|
logger.throwError("cannot estimate gas; transaction may fail or may require manual gas limit", Logger.errors.UNPREDICTABLE_GAS_LIMIT, {
|
|
error, method, transaction
|
|
});
|
|
}
|
|
throw error;
|
|
}
|
|
export class EtherscanProvider extends BaseProvider {
|
|
constructor(network, apiKey) {
|
|
logger.checkNew(new.target, EtherscanProvider);
|
|
super(network);
|
|
defineReadOnly(this, "baseUrl", this.getBaseUrl());
|
|
defineReadOnly(this, "apiKey", apiKey || defaultApiKey);
|
|
}
|
|
getBaseUrl() {
|
|
switch (this.network ? this.network.name : "invalid") {
|
|
case "homestead":
|
|
return "https:/\/api.etherscan.io";
|
|
case "ropsten":
|
|
return "https:/\/api-ropsten.etherscan.io";
|
|
case "rinkeby":
|
|
return "https:/\/api-rinkeby.etherscan.io";
|
|
case "kovan":
|
|
return "https:/\/api-kovan.etherscan.io";
|
|
case "goerli":
|
|
return "https:/\/api-goerli.etherscan.io";
|
|
default:
|
|
}
|
|
return logger.throwArgumentError("unsupported network", "network", name);
|
|
}
|
|
getUrl(module, params) {
|
|
const query = Object.keys(params).reduce((accum, key) => {
|
|
const value = params[key];
|
|
if (value != null) {
|
|
accum += `&${key}=${value}`;
|
|
}
|
|
return accum;
|
|
}, "");
|
|
const apiKey = ((this.apiKey) ? `&apikey=${this.apiKey}` : "");
|
|
return `${this.baseUrl}/api?module=${module}${query}${apiKey}`;
|
|
}
|
|
getPostUrl() {
|
|
return `${this.baseUrl}/api`;
|
|
}
|
|
getPostData(module, params) {
|
|
params.module = module;
|
|
params.apikey = this.apiKey;
|
|
return params;
|
|
}
|
|
fetch(module, params, post) {
|
|
return __awaiter(this, void 0, void 0, function* () {
|
|
const url = (post ? this.getPostUrl() : this.getUrl(module, params));
|
|
const payload = (post ? this.getPostData(module, params) : null);
|
|
const procFunc = (module === "proxy") ? getJsonResult : getResult;
|
|
this.emit("debug", {
|
|
action: "request",
|
|
request: url,
|
|
provider: this
|
|
});
|
|
const connection = {
|
|
url: url,
|
|
throttleSlotInterval: 1000,
|
|
throttleCallback: (attempt, url) => {
|
|
if (this.isCommunityResource()) {
|
|
showThrottleMessage();
|
|
}
|
|
return Promise.resolve(true);
|
|
}
|
|
};
|
|
let payloadStr = null;
|
|
if (payload) {
|
|
connection.headers = { "content-type": "application/x-www-form-urlencoded; charset=UTF-8" };
|
|
payloadStr = Object.keys(payload).map((key) => {
|
|
return `${key}=${payload[key]}`;
|
|
}).join("&");
|
|
}
|
|
const result = yield fetchJson(connection, payloadStr, procFunc || getJsonResult);
|
|
this.emit("debug", {
|
|
action: "response",
|
|
request: url,
|
|
response: deepCopy(result),
|
|
provider: this
|
|
});
|
|
return result;
|
|
});
|
|
}
|
|
detectNetwork() {
|
|
return __awaiter(this, void 0, void 0, function* () {
|
|
return this.network;
|
|
});
|
|
}
|
|
perform(method, params) {
|
|
const _super = Object.create(null, {
|
|
perform: { get: () => super.perform }
|
|
});
|
|
return __awaiter(this, void 0, void 0, function* () {
|
|
switch (method) {
|
|
case "getBlockNumber":
|
|
return this.fetch("proxy", { action: "eth_blockNumber" });
|
|
case "getGasPrice":
|
|
return this.fetch("proxy", { action: "eth_gasPrice" });
|
|
case "getBalance":
|
|
// Returns base-10 result
|
|
return this.fetch("account", {
|
|
action: "balance",
|
|
address: params.address,
|
|
tag: params.blockTag
|
|
});
|
|
case "getTransactionCount":
|
|
return this.fetch("proxy", {
|
|
action: "eth_getTransactionCount",
|
|
address: params.address,
|
|
tag: params.blockTag
|
|
});
|
|
case "getCode":
|
|
return this.fetch("proxy", {
|
|
action: "eth_getCode",
|
|
address: params.address,
|
|
tag: params.blockTag
|
|
});
|
|
case "getStorageAt":
|
|
return this.fetch("proxy", {
|
|
action: "eth_getStorageAt",
|
|
address: params.address,
|
|
position: params.position,
|
|
tag: params.blockTag
|
|
});
|
|
case "sendTransaction":
|
|
return this.fetch("proxy", {
|
|
action: "eth_sendRawTransaction",
|
|
hex: params.signedTransaction
|
|
}, true).catch((error) => {
|
|
return checkError("sendTransaction", error, params.signedTransaction);
|
|
});
|
|
case "getBlock":
|
|
if (params.blockTag) {
|
|
return this.fetch("proxy", {
|
|
action: "eth_getBlockByNumber",
|
|
tag: params.blockTag,
|
|
boolean: (params.includeTransactions ? "true" : "false")
|
|
});
|
|
}
|
|
throw new Error("getBlock by blockHash not implemented");
|
|
case "getTransaction":
|
|
return this.fetch("proxy", {
|
|
action: "eth_getTransactionByHash",
|
|
txhash: params.transactionHash
|
|
});
|
|
case "getTransactionReceipt":
|
|
return this.fetch("proxy", {
|
|
action: "eth_getTransactionReceipt",
|
|
txhash: params.transactionHash
|
|
});
|
|
case "call": {
|
|
if (params.blockTag !== "latest") {
|
|
throw new Error("EtherscanProvider does not support blockTag for call");
|
|
}
|
|
const postData = getTransactionPostData(params.transaction);
|
|
postData.module = "proxy";
|
|
postData.action = "eth_call";
|
|
try {
|
|
return yield this.fetch("proxy", postData, true);
|
|
}
|
|
catch (error) {
|
|
return checkError("call", error, params.transaction);
|
|
}
|
|
}
|
|
case "estimateGas": {
|
|
const postData = getTransactionPostData(params.transaction);
|
|
postData.module = "proxy";
|
|
postData.action = "eth_estimateGas";
|
|
try {
|
|
return yield this.fetch("proxy", postData, true);
|
|
}
|
|
catch (error) {
|
|
return checkError("estimateGas", error, params.transaction);
|
|
}
|
|
}
|
|
case "getLogs": {
|
|
const args = { action: "getLogs" };
|
|
if (params.filter.fromBlock) {
|
|
args.fromBlock = checkLogTag(params.filter.fromBlock);
|
|
}
|
|
if (params.filter.toBlock) {
|
|
args.toBlock = checkLogTag(params.filter.toBlock);
|
|
}
|
|
if (params.filter.address) {
|
|
args.address = params.filter.address;
|
|
}
|
|
// @TODO: We can handle slightly more complicated logs using the logs API
|
|
if (params.filter.topics && params.filter.topics.length > 0) {
|
|
if (params.filter.topics.length > 1) {
|
|
logger.throwError("unsupported topic count", Logger.errors.UNSUPPORTED_OPERATION, { topics: params.filter.topics });
|
|
}
|
|
if (params.filter.topics.length === 1) {
|
|
const topic0 = params.filter.topics[0];
|
|
if (typeof (topic0) !== "string" || topic0.length !== 66) {
|
|
logger.throwError("unsupported topic format", Logger.errors.UNSUPPORTED_OPERATION, { topic0: topic0 });
|
|
}
|
|
args.topic0 = topic0;
|
|
}
|
|
}
|
|
const logs = yield this.fetch("logs", args);
|
|
// Cache txHash => blockHash
|
|
let blocks = {};
|
|
// Add any missing blockHash to the logs
|
|
for (let i = 0; i < logs.length; i++) {
|
|
const log = logs[i];
|
|
if (log.blockHash != null) {
|
|
continue;
|
|
}
|
|
if (blocks[log.blockNumber] == null) {
|
|
const block = yield this.getBlock(log.blockNumber);
|
|
if (block) {
|
|
blocks[log.blockNumber] = block.hash;
|
|
}
|
|
}
|
|
log.blockHash = blocks[log.blockNumber];
|
|
}
|
|
return logs;
|
|
}
|
|
case "getEtherPrice":
|
|
if (this.network.name !== "homestead") {
|
|
return 0.0;
|
|
}
|
|
return parseFloat((yield this.fetch("stats", { action: "ethprice" })).ethusd);
|
|
default:
|
|
break;
|
|
}
|
|
return _super.perform.call(this, method, params);
|
|
});
|
|
}
|
|
// Note: The `page` page parameter only allows pagination within the
|
|
// 10,000 window abailable without a page and offset parameter
|
|
// Error: Result window is too large, PageNo x Offset size must
|
|
// be less than or equal to 10000
|
|
getHistory(addressOrName, startBlock, endBlock) {
|
|
return __awaiter(this, void 0, void 0, function* () {
|
|
const params = {
|
|
action: "txlist",
|
|
address: (yield this.resolveName(addressOrName)),
|
|
startblock: ((startBlock == null) ? 0 : startBlock),
|
|
endblock: ((endBlock == null) ? 99999999 : endBlock),
|
|
sort: "asc"
|
|
};
|
|
const result = yield this.fetch("account", params);
|
|
return result.map((tx) => {
|
|
["contractAddress", "to"].forEach(function (key) {
|
|
if (tx[key] == "") {
|
|
delete tx[key];
|
|
}
|
|
});
|
|
if (tx.creates == null && tx.contractAddress != null) {
|
|
tx.creates = tx.contractAddress;
|
|
}
|
|
const item = this.formatter.transactionResponse(tx);
|
|
if (tx.timeStamp) {
|
|
item.timestamp = parseInt(tx.timeStamp);
|
|
}
|
|
return item;
|
|
});
|
|
});
|
|
}
|
|
isCommunityResource() {
|
|
return (this.apiKey === defaultApiKey);
|
|
}
|
|
}
|
|
//# sourceMappingURL=etherscan-provider.js.map
|