@akord/akord-js-arweave-signer/lib/index.js

Arweave signer for akord-js

"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    var desc = Object.getOwnPropertyDescriptor(m, k);
    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
      desc = { enumerable: true, get: function() { return m[k]; } };
    }
    Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
    if (mod && mod.__esModule) return mod;
    var result = {};
    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
    __setModuleDefault(result, mod);
    return result;
};
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());
    });
};
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.ArweaveSigner = exports.KeyType = void 0;
const crypto_1 = require("@akord/crypto");
const arweave_1 = __importDefault(require("arweave"));
const nodeCrypto = __importStar(require("crypto"));
const crypto = typeof window === 'undefined' ? nodeCrypto.webcrypto : window.crypto;
var KeyType;
(function (KeyType) {
    KeyType["JWK"] = "JWK";
    KeyType["ARCONNECT"] = "ARCONNECT";
})(KeyType || (exports.KeyType = KeyType = {}));
class ArweaveSigner {
    constructor(config) {
        this.arweave = arweave_1.default.init({
            host: 'arweave.net',
            port: 443,
            protocol: 'https'
        });
        if (config === null || config === void 0 ? void 0 : config.jwk) {
            this.keyType = KeyType.JWK;
            this.wallet = config.jwk;
        }
        else if (window.arweaveWallet) {
            this.keyType = KeyType.ARCONNECT;
        }
        else {
            throw new Error("Missing wallet configuration. Please provide Arweave JWK or inject ArConnect wallet.");
        }
    }
    signingPublicKey() {
        if (this.keyType === KeyType.JWK) {
            return this.wallet.n;
        }
        else {
            return window.arweaveWallet.getActivePublicKey();
        }
    }
    sign(message) {
        return __awaiter(this, void 0, void 0, function* () {
            let signature;
            const data = new TextEncoder().encode(message);
            if (this.keyType === KeyType.JWK) {
                const dataToSign = new Uint8Array(data);
                // hash the message
                const hash = yield crypto.subtle.digest(HASH_ALGORITHM, dataToSign);
                const cryptoKey = yield importRSASigningKey(this.wallet);
                const signatureRaw = yield crypto.subtle.sign({ name: "RSA-PSS", saltLength: 32 }, cryptoKey, hash);
                signature = (0, crypto_1.arrayToBase64)(new Uint8Array(signatureRaw));
            }
            else {
                const rawSignature = yield window.arweaveWallet.signMessage(data);
                signature = (0, crypto_1.arrayToBase64)(rawSignature);
            }
            return signature;
        });
    }
    getAddress() {
        return __awaiter(this, void 0, void 0, function* () {
            if (this.keyType === KeyType.JWK) {
                return this.arweave.wallets.jwkToAddress(this.wallet);
            }
            else {
                return window.arweaveWallet.getActiveAddress();
            }
            ;
        });
    }
}
exports.default = ArweaveSigner;
exports.ArweaveSigner = ArweaveSigner;
const HASH_ALGORITHM = 'SHA-256';
const importRSASigningKey = (jwk) => __awaiter(void 0, void 0, void 0, function* () {
    return yield crypto.subtle.importKey("jwk", jwk, {
        name: "RSA-PSS",
        hash: HASH_ALGORITHM
    }, false, ["sign"]);
});