ethers.js/packages/wallet/lib.esm/index.js

"use strict";
import { getAddress } from "@ethersproject/address";
import { Provider } from "@ethersproject/abstract-provider";
import { Signer } from "@ethersproject/abstract-signer";
import { arrayify, concat, hexDataSlice, isHexString, joinSignature } from "@ethersproject/bytes";
import { hashMessage } from "@ethersproject/hash";
import { defaultPath, HDNode, entropyToMnemonic } from "@ethersproject/hdnode";
import { keccak256 } from "@ethersproject/keccak256";
import { defineReadOnly, resolveProperties } from "@ethersproject/properties";
import { randomBytes } from "@ethersproject/random";
import { SigningKey } from "@ethersproject/signing-key";
import { decryptJsonWallet, encryptKeystore } from "@ethersproject/json-wallets";
import { computeAddress, recoverAddress, serialize } from "@ethersproject/transactions";
import { Logger } from "@ethersproject/logger";
import { version } from "./_version";
const logger = new Logger(version);
function isAccount(value) {
    return (value != null && isHexString(value.privateKey, 32) && value.address != null);
}
export class Wallet extends Signer {
    constructor(privateKey, provider) {
        logger.checkNew(new.target, Wallet);
        super();
        if (isAccount(privateKey)) {
            const signingKey = new SigningKey(privateKey.privateKey);
            defineReadOnly(this, "_signingKey", () => signingKey);
            defineReadOnly(this, "address", computeAddress(this.publicKey));
            if (this.address !== getAddress(privateKey.address)) {
                logger.throwArgumentError("privateKey/address mismatch", "privateKey", "[REDCACTED]");
            }
            if (privateKey.mnemonic != null) {
                const mnemonic = privateKey.mnemonic;
                const path = privateKey.path || defaultPath;
                defineReadOnly(this, "_mnemonic", () => mnemonic);
                defineReadOnly(this, "path", privateKey.path);
                const node = HDNode.fromMnemonic(mnemonic).derivePath(path);
                if (computeAddress(node.privateKey) !== this.address) {
                    logger.throwArgumentError("mnemonic/address mismatch", "privateKey", "[REDCACTED]");
                }
            }
            else {
                defineReadOnly(this, "_mnemonic", () => null);
                defineReadOnly(this, "path", null);
            }
        }
        else {
            if (SigningKey.isSigningKey(privateKey)) {
                if (privateKey.curve !== "secp256k1") {
                    logger.throwArgumentError("unsupported curve; must be secp256k1", "privateKey", "[REDACTED]");
                }
                defineReadOnly(this, "_signingKey", () => privateKey);
            }
            else {
                const signingKey = new SigningKey(privateKey);
                defineReadOnly(this, "_signingKey", () => signingKey);
            }
            defineReadOnly(this, "_mnemonic", () => null);
            defineReadOnly(this, "path", null);
            defineReadOnly(this, "address", computeAddress(this.publicKey));
        }
        if (provider && !Provider.isProvider(provider)) {
            logger.throwArgumentError("invalid provider", "provider", provider);
        }
        defineReadOnly(this, "provider", provider || null);
    }
    get mnemonic() { return this._mnemonic(); }
    get privateKey() { return this._signingKey().privateKey; }
    get publicKey() { return this._signingKey().publicKey; }
    getAddress() {
        return Promise.resolve(this.address);
    }
    connect(provider) {
        return new Wallet(this, provider);
    }
    signTransaction(transaction) {
        return resolveProperties(transaction).then((tx) => {
            if (tx.from != null) {
                if (getAddress(tx.from) !== this.address) {
                    throw new Error("transaction from address mismatch");
                }
                delete tx.from;
            }
            const signature = this._signingKey().signDigest(keccak256(serialize(tx)));
            return serialize(tx, signature);
        });
    }
    signMessage(message) {
        return Promise.resolve(joinSignature(this._signingKey().signDigest(hashMessage(message))));
    }
    encrypt(password, options, progressCallback) {
        if (typeof (options) === "function" && !progressCallback) {
            progressCallback = options;
            options = {};
        }
        if (progressCallback && typeof (progressCallback) !== "function") {
            throw new Error("invalid callback");
        }
        if (!options) {
            options = {};
        }
        return encryptKeystore(this, password, options, progressCallback);
    }
    /**
     *  Static methods to create Wallet instances.
     */
    static createRandom(options) {
        let entropy = randomBytes(16);
        if (!options) {
            options = {};
        }
        if (options.extraEntropy) {
            entropy = arrayify(hexDataSlice(keccak256(concat([entropy, options.extraEntropy])), 0, 16));
        }
        const mnemonic = entropyToMnemonic(entropy, options.locale);
        return Wallet.fromMnemonic(mnemonic, options.path, options.locale);
    }
    static fromEncryptedJson(json, password, progressCallback) {
        return decryptJsonWallet(json, password, progressCallback).then((account) => {
            return new Wallet(account);
        });
    }
    static fromMnemonic(mnemonic, path, wordlist) {
        if (!path) {
            path = defaultPath;
        }
        return new Wallet(HDNode.fromMnemonic(mnemonic, null, wordlist).derivePath(path));
    }
}
export function verifyMessage(message, signature) {
    return recoverAddress(hashMessage(message), signature);
}