ethers.js/lib.commonjs/providers/abstract-signer.js
2023-02-02 04:05:47 -05:00

199 lines
8.3 KiB
JavaScript

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.VoidSigner = exports.AbstractSigner = void 0;
/**
* About Abstract Signer and subclassing
*
* @_section: api/providers/abstract-signer: Subclassing Signer [abstract-signer]
*/
const index_js_1 = require("../address/index.js");
const index_js_2 = require("../transaction/index.js");
const index_js_3 = require("../utils/index.js");
const provider_js_1 = require("./provider.js");
function checkProvider(signer, operation) {
if (signer.provider) {
return signer.provider;
}
(0, index_js_3.assert)(false, "missing provider", "UNSUPPORTED_OPERATION", { operation });
}
async function populate(signer, tx) {
let pop = (0, provider_js_1.copyRequest)(tx);
if (pop.to != null) {
pop.to = (0, index_js_1.resolveAddress)(pop.to, signer);
}
if (pop.from != null) {
const from = pop.from;
pop.from = Promise.all([
signer.getAddress(),
(0, index_js_1.resolveAddress)(from, signer)
]).then(([address, from]) => {
(0, index_js_3.assertArgument)(address.toLowerCase() === from.toLowerCase(), "transaction from mismatch", "tx.from", from);
return address;
});
}
else {
pop.from = signer.getAddress();
}
return await (0, index_js_3.resolveProperties)(pop);
}
class AbstractSigner {
provider;
constructor(provider) {
(0, index_js_3.defineProperties)(this, { provider: (provider || null) });
}
async getNonce(blockTag) {
return checkProvider(this, "getTransactionCount").getTransactionCount(await this.getAddress(), blockTag);
}
async populateCall(tx) {
const pop = await populate(this, tx);
return pop;
}
async populateTransaction(tx) {
const provider = checkProvider(this, "populateTransaction");
const pop = await populate(this, tx);
if (pop.nonce == null) {
pop.nonce = await this.getNonce("pending");
}
if (pop.gasLimit == null) {
pop.gasLimit = await this.estimateGas(pop);
}
// Populate the chain ID
const network = await (this.provider).getNetwork();
if (pop.chainId != null) {
const chainId = (0, index_js_3.getBigInt)(pop.chainId);
(0, index_js_3.assertArgument)(chainId === network.chainId, "transaction chainId mismatch", "tx.chainId", tx.chainId);
}
else {
pop.chainId = network.chainId;
}
// Do not allow mixing pre-eip-1559 and eip-1559 properties
const hasEip1559 = (pop.maxFeePerGas != null || pop.maxPriorityFeePerGas != null);
if (pop.gasPrice != null && (pop.type === 2 || hasEip1559)) {
(0, index_js_3.assertArgument)(false, "eip-1559 transaction do not support gasPrice", "tx", tx);
}
else if ((pop.type === 0 || pop.type === 1) && hasEip1559) {
(0, index_js_3.assertArgument)(false, "pre-eip-1559 transaction do not support maxFeePerGas/maxPriorityFeePerGas", "tx", tx);
}
if ((pop.type === 2 || pop.type == null) && (pop.maxFeePerGas != null && pop.maxPriorityFeePerGas != null)) {
// Fully-formed EIP-1559 transaction (skip getFeeData)
pop.type = 2;
}
else if (pop.type === 0 || pop.type === 1) {
// Explicit Legacy or EIP-2930 transaction
// We need to get fee data to determine things
const feeData = await provider.getFeeData();
(0, index_js_3.assert)(feeData.gasPrice != null, "network does not support gasPrice", "UNSUPPORTED_OPERATION", {
operation: "getGasPrice"
});
// Populate missing gasPrice
if (pop.gasPrice == null) {
pop.gasPrice = feeData.gasPrice;
}
}
else {
// We need to get fee data to determine things
const feeData = await provider.getFeeData();
if (pop.type == null) {
// We need to auto-detect the intended type of this transaction...
if (feeData.maxFeePerGas != null && feeData.maxPriorityFeePerGas != null) {
// The network supports EIP-1559!
// Upgrade transaction from null to eip-1559
pop.type = 2;
if (pop.gasPrice != null) {
// Using legacy gasPrice property on an eip-1559 network,
// so use gasPrice as both fee properties
const gasPrice = pop.gasPrice;
delete pop.gasPrice;
pop.maxFeePerGas = gasPrice;
pop.maxPriorityFeePerGas = gasPrice;
}
else {
// Populate missing fee data
if (pop.maxFeePerGas == null) {
pop.maxFeePerGas = feeData.maxFeePerGas;
}
if (pop.maxPriorityFeePerGas == null) {
pop.maxPriorityFeePerGas = feeData.maxPriorityFeePerGas;
}
}
}
else if (feeData.gasPrice != null) {
// Network doesn't support EIP-1559...
// ...but they are trying to use EIP-1559 properties
(0, index_js_3.assert)(!hasEip1559, "network does not support EIP-1559", "UNSUPPORTED_OPERATION", {
operation: "populateTransaction"
});
// Populate missing fee data
if (pop.gasPrice == null) {
pop.gasPrice = feeData.gasPrice;
}
// Explicitly set untyped transaction to legacy
// @TODO: Maybe this shold allow type 1?
pop.type = 0;
}
else {
// getFeeData has failed us.
(0, index_js_3.assert)(false, "failed to get consistent fee data", "UNSUPPORTED_OPERATION", {
operation: "signer.getFeeData"
});
}
}
else if (pop.type === 2) {
// Explicitly using EIP-1559
// Populate missing fee data
if (pop.maxFeePerGas == null) {
pop.maxFeePerGas = feeData.maxFeePerGas;
}
if (pop.maxPriorityFeePerGas == null) {
pop.maxPriorityFeePerGas = feeData.maxPriorityFeePerGas;
}
}
}
//@TOOD: Don't await all over the place; save them up for
// the end for better batching
return await (0, index_js_3.resolveProperties)(pop);
}
async estimateGas(tx) {
return checkProvider(this, "estimateGas").estimateGas(await this.populateCall(tx));
}
async call(tx) {
return checkProvider(this, "call").call(await this.populateCall(tx));
}
async resolveName(name) {
const provider = checkProvider(this, "resolveName");
return await provider.resolveName(name);
}
async sendTransaction(tx) {
const provider = checkProvider(this, "sendTransaction");
const pop = await this.populateTransaction(tx);
delete pop.from;
const txObj = index_js_2.Transaction.from(pop);
return await provider.broadcastTransaction(await this.signTransaction(txObj));
}
}
exports.AbstractSigner = AbstractSigner;
class VoidSigner extends AbstractSigner {
address;
constructor(address, provider) {
super(provider);
(0, index_js_3.defineProperties)(this, { address });
}
async getAddress() { return this.address; }
connect(provider) {
return new VoidSigner(this.address, provider);
}
#throwUnsupported(suffix, operation) {
(0, index_js_3.assert)(false, `VoidSigner cannot sign ${suffix}`, "UNSUPPORTED_OPERATION", { operation });
}
async signTransaction(tx) {
this.#throwUnsupported("transactions", "signTransaction");
}
async signMessage(message) {
this.#throwUnsupported("messages", "signMessage");
}
async signTypedData(domain, types, value) {
this.#throwUnsupported("typed-data", "signTypedData");
}
}
exports.VoidSigner = VoidSigner;
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