1 | 'use strict';
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2 |
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3 | Object.defineProperty(exports, "__esModule", {
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4 | value: true
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5 | });
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6 | exports.default = signedParams;
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7 |
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8 | var _lodash = require('lodash.clone');
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9 |
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10 | var _lodash2 = _interopRequireDefault(_lodash);
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11 |
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12 | var _crypto = require('crypto');
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13 |
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14 | var _crypto2 = _interopRequireDefault(_crypto);
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15 |
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16 | var _lodash3 = require('lodash.defaults');
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17 |
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18 | var _lodash4 = _interopRequireDefault(_lodash3);
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19 |
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20 | var _lodash5 = require('lodash.keys');
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21 |
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22 | var _lodash6 = _interopRequireDefault(_lodash5);
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23 |
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24 | function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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25 |
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26 | var debug = !!process.env.DEBUG;
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27 |
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28 | function signedParams(method, path, host, keys) {
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29 | var params = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : {};
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30 |
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31 | params = (0, _lodash4.default)((0, _lodash2.default)(params), {
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32 | access_key: keys.accessKey,
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33 | timestamp: new Date().toISOString()
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34 | });
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35 | params.signature = generateHmacSignature(method, path, host, keys, params);
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36 | return params;
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37 | }
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38 |
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39 | function generateHmacSignature(method, path, host, keys, params) {
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40 | var paramsCopy = (0, _lodash2.default)(params);
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41 | var signatureData = method.toUpperCase() + ';' + host.toLowerCase() + ';' + path + ';' + buildSortedQuery(paramsCopy);
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42 | debug && console.log('Signature data: ' + signatureData);
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43 | var hmac = _crypto2.default.createHmac('sha256', keys.secretKey.toUpperCase());
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44 | hmac.update(signatureData);
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45 | return hmac.digest('base64');
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46 | }
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47 |
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48 | function buildSortedQuery(params) {
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49 |
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50 | var _keys = (0, _lodash6.default)(params).sort();
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51 | var query = '';
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52 | for (var i = 0, l = _keys.length; i < l; i++) {
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53 | query += encodeURIComponent(_keys[i]) + '=' + encodeURIComponent(params[_keys[i]]) + '&';
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54 | }
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55 | query = query.replace(/\*/g, '%2A').replace(/[!'()]/g, escape).replace(/%7E/g, '~').replace(/\+/g, '%20');
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56 |
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57 | return query.substring(0, query.length - 1);
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58 | } |
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