ethers.js/packages/providers/json-rpc-provider.js
2019-06-01 14:19:43 -04:00

437 lines
19 KiB
JavaScript

"use strict";
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
result["default"] = mod;
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
var abstract_signer_1 = require("@ethersproject/abstract-signer");
var bignumber_1 = require("@ethersproject/bignumber");
var bytes_1 = require("@ethersproject/bytes");
var errors = __importStar(require("@ethersproject/errors"));
var networks_1 = require("@ethersproject/networks");
var properties_1 = require("@ethersproject/properties");
var strings_1 = require("@ethersproject/strings");
var web_1 = require("@ethersproject/web");
var base_provider_1 = require("./base-provider");
function timer(timeout) {
return new Promise(function (resolve) {
setTimeout(function () {
resolve();
}, timeout);
});
}
function getResult(payload) {
if (payload.error) {
// @TODO: not any
var error = new Error(payload.error.message);
error.code = payload.error.code;
error.data = payload.error.data;
throw error;
}
return payload.result;
}
function getLowerCase(value) {
if (value) {
return value.toLowerCase();
}
return value;
}
var _constructorGuard = {};
var JsonRpcSigner = /** @class */ (function (_super) {
__extends(JsonRpcSigner, _super);
function JsonRpcSigner(constructorGuard, provider, addressOrIndex) {
var _newTarget = this.constructor;
var _this = this;
errors.checkNew(_newTarget, JsonRpcSigner);
_this = _super.call(this) || this;
if (constructorGuard !== _constructorGuard) {
throw new Error("do not call the JsonRpcSigner constructor directly; use provider.getSigner");
}
properties_1.defineReadOnly(_this, "provider", provider);
if (addressOrIndex == null) {
addressOrIndex = 0;
}
if (typeof (addressOrIndex) === "string") {
properties_1.defineReadOnly(_this, "_address", _this.provider.formatter.address(addressOrIndex));
properties_1.defineReadOnly(_this, "_index", null);
}
else if (typeof (addressOrIndex) === "number") {
properties_1.defineReadOnly(_this, "_index", addressOrIndex);
properties_1.defineReadOnly(_this, "_address", null);
}
else {
errors.throwError("invalid address or index", errors.INVALID_ARGUMENT, { argument: "addressOrIndex", value: addressOrIndex });
}
return _this;
}
JsonRpcSigner.prototype.connect = function (provider) {
return errors.throwError("cannot alter JSON-RPC Signer connection", errors.UNSUPPORTED_OPERATION, {
operation: "connect"
});
};
JsonRpcSigner.prototype.connectUnchecked = function () {
return new UncheckedJsonRpcSigner(_constructorGuard, this.provider, this._address || this._index);
};
JsonRpcSigner.prototype.getAddress = function () {
var _this = this;
if (this._address) {
return Promise.resolve(this._address);
}
return this.provider.send("eth_accounts", []).then(function (accounts) {
if (accounts.length <= _this._index) {
errors.throwError("unknown account #" + _this._index, errors.UNSUPPORTED_OPERATION, { operation: "getAddress" });
}
return _this.provider.formatter.address(accounts[_this._index]);
});
};
JsonRpcSigner.prototype.sendUncheckedTransaction = function (transaction) {
var _this = this;
transaction = properties_1.shallowCopy(transaction);
var fromAddress = this.getAddress().then(function (address) {
if (address) {
address = address.toLowerCase();
}
return address;
});
// The JSON-RPC for eth_sendTransaction uses 90000 gas; if the user
// wishes to use this, it is easy to specify explicitly, otherwise
// we look it up for them.
if (transaction.gasLimit == null) {
var estimate = properties_1.shallowCopy(transaction);
estimate.from = fromAddress;
transaction.gasLimit = this.provider.estimateGas(estimate);
}
return Promise.all([
properties_1.resolveProperties(transaction),
fromAddress
]).then(function (results) {
var tx = results[0];
var hexTx = _this.provider.constructor.hexlifyTransaction(tx);
hexTx.from = results[1];
return _this.provider.send("eth_sendTransaction", [hexTx]).then(function (hash) {
return hash;
}, function (error) {
if (error.responseText) {
// See: JsonRpcProvider.sendTransaction (@TODO: Expose a ._throwError??)
if (error.responseText.indexOf("insufficient funds") >= 0) {
errors.throwError("insufficient funds", errors.INSUFFICIENT_FUNDS, {
transaction: tx
});
}
if (error.responseText.indexOf("nonce too low") >= 0) {
errors.throwError("nonce has already been used", errors.NONCE_EXPIRED, {
transaction: tx
});
}
if (error.responseText.indexOf("replacement transaction underpriced") >= 0) {
errors.throwError("replacement fee too low", errors.REPLACEMENT_UNDERPRICED, {
transaction: tx
});
}
}
throw error;
});
});
};
JsonRpcSigner.prototype.signTransaction = function (transaction) {
return errors.throwError("signing transactions is unsupported", errors.UNSUPPORTED_OPERATION, {
operation: "signTransaction"
});
};
JsonRpcSigner.prototype.sendTransaction = function (transaction) {
var _this = this;
return this.sendUncheckedTransaction(transaction).then(function (hash) {
return web_1.poll(function () {
return _this.provider.getTransaction(hash).then(function (tx) {
if (tx === null) {
return undefined;
}
return _this.provider._wrapTransaction(tx, hash);
});
}, { onceBlock: _this.provider }).catch(function (error) {
error.transactionHash = hash;
throw error;
});
});
};
JsonRpcSigner.prototype.signMessage = function (message) {
var _this = this;
var data = ((typeof (message) === "string") ? strings_1.toUtf8Bytes(message) : message);
return this.getAddress().then(function (address) {
// https://github.com/ethereum/wiki/wiki/JSON-RPC#eth_sign
return _this.provider.send("eth_sign", [address.toLowerCase(), bytes_1.hexlify(data)]);
});
};
JsonRpcSigner.prototype.unlock = function (password) {
var provider = this.provider;
return this.getAddress().then(function (address) {
return provider.send("personal_unlockAccount", [address.toLowerCase(), password, null]);
});
};
return JsonRpcSigner;
}(abstract_signer_1.Signer));
exports.JsonRpcSigner = JsonRpcSigner;
var UncheckedJsonRpcSigner = /** @class */ (function (_super) {
__extends(UncheckedJsonRpcSigner, _super);
function UncheckedJsonRpcSigner() {
return _super !== null && _super.apply(this, arguments) || this;
}
UncheckedJsonRpcSigner.prototype.sendTransaction = function (transaction) {
var _this = this;
return this.sendUncheckedTransaction(transaction).then(function (hash) {
return {
hash: hash,
nonce: null,
gasLimit: null,
gasPrice: null,
data: null,
value: null,
chainId: null,
confirmations: 0,
from: null,
wait: function (confirmations) { return _this.provider.waitForTransaction(hash, confirmations); }
};
});
};
return UncheckedJsonRpcSigner;
}(JsonRpcSigner));
var allowedTransactionKeys = {
chainId: true, data: true, gasLimit: true, gasPrice: true, nonce: true, to: true, value: true
};
var JsonRpcProvider = /** @class */ (function (_super) {
__extends(JsonRpcProvider, _super);
function JsonRpcProvider(url, network) {
var _newTarget = this.constructor;
var _this = this;
errors.checkNew(_newTarget, JsonRpcProvider);
// One parameter, but it is a network name, so swap it with the URL
if (typeof (url) === "string") {
if (network === null && networks_1.getNetwork(url)) {
network = url;
url = null;
}
}
if (network) {
// The network has been specified explicitly, we can use it
_this = _super.call(this, network) || this;
}
else {
// The network is unknown, query the JSON-RPC for it
var ready = new Promise(function (resolve, reject) {
setTimeout(function () {
_this.send("eth_chainId", []).then(function (result) {
resolve(networks_1.getNetwork(bignumber_1.BigNumber.from(result).toNumber()));
}).catch(function (error) {
_this.send("net_version", []).then(function (result) {
resolve(networks_1.getNetwork(bignumber_1.BigNumber.from(result).toNumber()));
}).catch(function (error) {
reject(errors.makeError("could not detect network", errors.NETWORK_ERROR, {}));
});
});
});
});
_this = _super.call(this, ready) || this;
}
// Default URL
if (!url) {
url = "http:/" + "/localhost:8545";
}
if (typeof (url) === "string") {
_this.connection = {
url: url
};
}
else {
_this.connection = url;
}
_this._nextId = 42;
return _this;
}
JsonRpcProvider.prototype.getSigner = function (addressOrIndex) {
return new JsonRpcSigner(_constructorGuard, this, addressOrIndex);
};
JsonRpcProvider.prototype.getUncheckedSigner = function (addressOrIndex) {
return this.getSigner(addressOrIndex).connectUnchecked();
};
JsonRpcProvider.prototype.listAccounts = function () {
var _this = this;
return this.send("eth_accounts", []).then(function (accounts) {
return accounts.map(function (a) { return _this.formatter.address(a); });
});
};
JsonRpcProvider.prototype.send = function (method, params) {
var _this = this;
var request = {
method: method,
params: params,
id: (this._nextId++),
jsonrpc: "2.0"
};
return web_1.fetchJson(this.connection, JSON.stringify(request), getResult).then(function (result) {
_this.emit("debug", {
action: "send",
request: request,
response: result,
provider: _this
});
return result;
});
};
JsonRpcProvider.prototype.perform = function (method, params) {
switch (method) {
case "getBlockNumber":
return this.send("eth_blockNumber", []);
case "getGasPrice":
return this.send("eth_gasPrice", []);
case "getBalance":
return this.send("eth_getBalance", [getLowerCase(params.address), params.blockTag]);
case "getTransactionCount":
return this.send("eth_getTransactionCount", [getLowerCase(params.address), params.blockTag]);
case "getCode":
return this.send("eth_getCode", [getLowerCase(params.address), params.blockTag]);
case "getStorageAt":
return this.send("eth_getStorageAt", [getLowerCase(params.address), params.position, params.blockTag]);
case "sendTransaction":
return this.send("eth_sendRawTransaction", [params.signedTransaction]).catch(function (error) {
if (error.responseText) {
// "insufficient funds for gas * price + value"
if (error.responseText.indexOf("insufficient funds") > 0) {
errors.throwError("insufficient funds", errors.INSUFFICIENT_FUNDS, {});
}
// "nonce too low"
if (error.responseText.indexOf("nonce too low") > 0) {
errors.throwError("nonce has already been used", errors.NONCE_EXPIRED, {});
}
// "replacement transaction underpriced"
if (error.responseText.indexOf("replacement transaction underpriced") > 0) {
errors.throwError("replacement fee too low", errors.REPLACEMENT_UNDERPRICED, {});
}
}
throw error;
});
case "getBlock":
if (params.blockTag) {
return this.send("eth_getBlockByNumber", [params.blockTag, !!params.includeTransactions]);
}
else if (params.blockHash) {
return this.send("eth_getBlockByHash", [params.blockHash, !!params.includeTransactions]);
}
return Promise.reject(new Error("invalid block tag or block hash"));
case "getTransaction":
return this.send("eth_getTransactionByHash", [params.transactionHash]);
case "getTransactionReceipt":
return this.send("eth_getTransactionReceipt", [params.transactionHash]);
case "call":
return this.send("eth_call", [this.constructor.hexlifyTransaction(params.transaction, { from: true }), params.blockTag]);
case "estimateGas":
return this.send("eth_estimateGas", [this.constructor.hexlifyTransaction(params.transaction, { from: true })]);
case "getLogs":
if (params.filter && params.filter.address != null) {
params.filter.address = getLowerCase(params.filter.address);
}
return this.send("eth_getLogs", [params.filter]);
default:
break;
}
return errors.throwError(method + " not implemented", errors.NOT_IMPLEMENTED, { operation: method });
};
JsonRpcProvider.prototype._startPending = function () {
if (this._pendingFilter != null) {
return;
}
var self = this;
var pendingFilter = this.send("eth_newPendingTransactionFilter", []);
this._pendingFilter = pendingFilter;
pendingFilter.then(function (filterId) {
function poll() {
self.send("eth_getFilterChanges", [filterId]).then(function (hashes) {
if (self._pendingFilter != pendingFilter) {
return null;
}
var seq = Promise.resolve();
hashes.forEach(function (hash) {
// @TODO: This should be garbage collected at some point... How? When?
self._emitted["t:" + hash.toLowerCase()] = "pending";
seq = seq.then(function () {
return self.getTransaction(hash).then(function (tx) {
self.emit("pending", tx);
return null;
});
});
});
return seq.then(function () {
return timer(1000);
});
}).then(function () {
if (self._pendingFilter != pendingFilter) {
self.send("eth_uninstallFilter", [filterId]);
return;
}
setTimeout(function () { poll(); }, 0);
return null;
}).catch(function (error) { });
}
poll();
return filterId;
}).catch(function (error) { });
};
JsonRpcProvider.prototype._stopPending = function () {
this._pendingFilter = null;
};
// Convert an ethers.js transaction into a JSON-RPC transaction
// - gasLimit => gas
// - All values hexlified
// - All numeric values zero-striped
// NOTE: This allows a TransactionRequest, but all values should be resolved
// before this is called
JsonRpcProvider.hexlifyTransaction = function (transaction, allowExtra) {
// Check only allowed properties are given
var allowed = properties_1.shallowCopy(allowedTransactionKeys);
if (allowExtra) {
for (var key in allowExtra) {
if (allowExtra[key]) {
allowed[key] = true;
}
}
}
properties_1.checkProperties(transaction, allowed);
var result = {};
// Some nodes (INFURA ropsten; INFURA mainnet is fine) do not like leading zeros.
["gasLimit", "gasPrice", "nonce", "value"].forEach(function (key) {
if (transaction[key] == null) {
return;
}
var value = bytes_1.hexValue(transaction[key]);
if (key === "gasLimit") {
key = "gas";
}
result[key] = value;
});
["from", "to", "data"].forEach(function (key) {
if (transaction[key] == null) {
return;
}
result[key] = bytes_1.hexlify(transaction[key]);
});
return result;
};
return JsonRpcProvider;
}(base_provider_1.BaseProvider));
exports.JsonRpcProvider = JsonRpcProvider;