netsuite-oauth-client/dist/utils/signature.js

NetSuite OAuth 1.0 client library for Node.js with TypeScript support

"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
exports.generateSignatureBaseString = generateSignatureBaseString;
exports.generateOAuthSignatureKey = generateOAuthSignatureKey;
exports.computeHmacSha256Signature = computeHmacSha256Signature;
exports.concatenateOAuthHeaderParams = concatenateOAuthHeaderParams;
const crypto = __importStar(require("crypto"));
const errors_1 = require("../errors");
const oauth_1 = require("./oauth");
function generateSignatureBaseString(credentials, requestUrl, oauthNonce, oauthTimestamp) {
    const method = 'POST';
    const url = requestUrl;
    const params = {
        oauth_consumer_key: credentials.consumerkey,
        oauth_nonce: oauthNonce,
        oauth_signature_method: oauth_1.SIGNATURE_METHOD,
        oauth_timestamp: oauthTimestamp,
        oauth_token: credentials.tokenkey,
        oauth_version: oauth_1.OAUTH_VERSION
    };
    const sortedParams = Object.keys(params)
        .sort()
        .map(key => `${(0, oauth_1.percentEncode)(key)}=${(0, oauth_1.percentEncode)(params[key])}`)
        .join('&');
    const baseString = [
        method.toUpperCase(),
        (0, oauth_1.percentEncode)(url),
        (0, oauth_1.percentEncode)(sortedParams)
    ].join('&');
    return baseString;
}
function generateOAuthSignatureKey(credentials) {
    const consumerSecret = (0, oauth_1.percentEncode)(credentials.consumersecret);
    const tokenSecret = (0, oauth_1.percentEncode)(credentials.tokensecret);
    return `${consumerSecret}&${tokenSecret}`;
}
function computeHmacSha256Signature(signingKey, baseString) {
    try {
        const hmac = crypto.createHmac('sha256', signingKey);
        hmac.update(baseString);
        return hmac.digest('base64');
    }
    catch (error) {
        throw new errors_1.SignatureError(`Failed to compute HMAC-SHA256 signature: ${error}`);
    }
}
function concatenateOAuthHeaderParams(params) {
    const headerParts = Object.entries(params)
        .map(([key, value]) => `${key}="${(0, oauth_1.percentEncode)(value)}"`)
        .join(', ');
    return `OAuth ${headerParts}`;
}
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