v2.js (1292B)
1 var AWS = require('../core');
2 var inherit = AWS.util.inherit;
3
4 /**
5 * @api private
6 */
7 AWS.Signers.V2 = inherit(AWS.Signers.RequestSigner, {
8 addAuthorization: function addAuthorization(credentials, date) {
9
10 if (!date) date = AWS.util.date.getDate();
11
12 var r = this.request;
13
14 r.params.Timestamp = AWS.util.date.iso8601(date);
15 r.params.SignatureVersion = '2';
16 r.params.SignatureMethod = 'HmacSHA256';
17 r.params.AWSAccessKeyId = credentials.accessKeyId;
18
19 if (credentials.sessionToken) {
20 r.params.SecurityToken = credentials.sessionToken;
21 }
22
23 delete r.params.Signature; // delete old Signature for re-signing
24 r.params.Signature = this.signature(credentials);
25
26 r.body = AWS.util.queryParamsToString(r.params);
27 r.headers['Content-Length'] = r.body.length;
28 },
29
30 signature: function signature(credentials) {
31 return AWS.util.crypto.hmac(credentials.secretAccessKey, this.stringToSign(), 'base64');
32 },
33
34 stringToSign: function stringToSign() {
35 var parts = [];
36 parts.push(this.request.method);
37 parts.push(this.request.endpoint.host.toLowerCase());
38 parts.push(this.request.pathname());
39 parts.push(AWS.util.queryParamsToString(this.request.params));
40 return parts.join('\n');
41 }
42
43 });
44
45 module.exports = AWS.Signers.V2;