var AWS = require('../core'); var inherit = AWS.util.inherit; /** * @api private */ AWS.Signers.V2 = inherit(AWS.Signers.RequestSigner, { addAuthorization: function addAuthorization(credentials, date) { if (!date) date = AWS.util.date.getDate(); var r = this.request; r.params.Timestamp = AWS.util.date.iso8601(date); r.params.SignatureVersion = '2'; r.params.SignatureMethod = 'HmacSHA256'; r.params.AWSAccessKeyId = credentials.accessKeyId; if (credentials.sessionToken) { r.params.SecurityToken = credentials.sessionToken; } delete r.params.Signature; // delete old Signature for re-signing r.params.Signature = this.signature(credentials); r.body = AWS.util.queryParamsToString(r.params); r.headers['Content-Length'] = r.body.length; }, signature: function signature(credentials) { return AWS.util.crypto.hmac(credentials.secretAccessKey, this.stringToSign(), 'base64'); }, stringToSign: function stringToSign() { var parts = []; parts.push(this.request.method); parts.push(this.request.endpoint.host.toLowerCase()); parts.push(this.request.pathname()); parts.push(AWS.util.queryParamsToString(this.request.params)); return parts.join('\n'); } }); /** * @api private */ module.exports = AWS.Signers.V2;