@multiversx/sdk-nestjs-http/lib/auth/native.auth.signer.js

Multiversx SDK Nestjs http package

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.NativeAuthSigner = exports.AccessTokenInfo = exports.NativeAuthSignerConfig = void 0;
const sdk_core_1 = require("@multiversx/sdk-core");
const sdk_native_auth_client_1 = require("@multiversx/sdk-native-auth-client");
const native_auth_client_config_1 = require("@multiversx/sdk-native-auth-client/lib/src/entities/native.auth.client.config");
require("@multiversx/sdk-nestjs-common/lib/utils/extensions/date.extensions");
const file_utils_1 = require("@multiversx/sdk-nestjs-common/lib/utils/file.utils");
class NativeAuthSignerConfig extends native_auth_client_config_1.NativeAuthClientConfig {
    constructor() {
        super(...arguments);
        this.signerPrivateKeyPath = undefined;
        this.privateKey = undefined;
    }
}
exports.NativeAuthSignerConfig = NativeAuthSignerConfig;
class AccessTokenInfo {
    constructor() {
        this.token = "";
        this.expiryDate = new Date(0);
    }
}
exports.AccessTokenInfo = AccessTokenInfo;
class NativeAuthSigner {
    constructor(config) {
        this.config = Object.assign(new NativeAuthSignerConfig(), config);
        this.nativeAuthClient = new sdk_native_auth_client_1.NativeAuthClient(this.config);
    }
    async getToken() {
        const currentDate = new Date().addMinutes(1);
        if (this.accessTokenInfo &&
            currentDate <= this.accessTokenInfo.expiryDate) {
            return this.accessTokenInfo;
        }
        const userSigner = await this.getUserSigner();
        const signableToken = await this.getSignableToken();
        const signerAddress = userSigner.getAddress().toBech32();
        const message = this.getMessage(signerAddress, signableToken);
        const messageComputer = new sdk_core_1.MessageComputer();
        const signature = await userSigner.sign(messageComputer.computeBytesForSigning(message));
        const token = this.nativeAuthClient.getToken(signerAddress, signableToken, Buffer.from(signature).toString("hex"));
        const expiryDate = new Date().addSeconds(this.config.expirySeconds);
        return (this.accessTokenInfo = {
            token,
            expiryDate,
        });
    }
    async getUserSigner() {
        if (this.userSigner) {
            return this.userSigner;
        }
        if (this.config.privateKey) {
            return (this.userSigner = sdk_core_1.UserSigner.fromPem(this.config.privateKey));
        }
        else if (this.config.signerPrivateKeyPath) {
            const pemFile = await file_utils_1.FileUtils.readFile(this.config.signerPrivateKeyPath);
            const pemKey = pemFile.toString();
            return (this.userSigner = sdk_core_1.UserSigner.fromPem(pemKey));
        }
        throw new Error("Missing PrivateKey and SignerPrivateKeyPath in NativeAuthSigner.");
    }
    getSignableToken() {
        return this.nativeAuthClient.initialize();
    }
    getMessage(signerAddress, signableToken) {
        const messageToSign = `${signerAddress}${signableToken}`;
        return new sdk_core_1.Message({
            data: Buffer.from(messageToSign, "utf8"),
        });
    }
}
exports.NativeAuthSigner = NativeAuthSigner;
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