1 | "use strict";
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2 | var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
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3 | function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
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4 | return new (P || (P = Promise))(function (resolve, reject) {
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5 | function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
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6 | function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
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7 | function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
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8 | step((generator = generator.apply(thisArg, _arguments || [])).next());
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9 | });
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10 | };
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11 | var __generator = (this && this.__generator) || function (thisArg, body) {
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12 | var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
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13 | return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
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14 | function verb(n) { return function (v) { return step([n, v]); }; }
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15 | function step(op) {
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16 | if (f) throw new TypeError("Generator is already executing.");
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17 | while (_) try {
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18 | if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
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19 | if (y = 0, t) op = [op[0] & 2, t.value];
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20 | switch (op[0]) {
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21 | case 0: case 1: t = op; break;
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22 | case 4: _.label++; return { value: op[1], done: false };
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23 | case 5: _.label++; y = op[1]; op = [0]; continue;
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24 | case 7: op = _.ops.pop(); _.trys.pop(); continue;
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25 | default:
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26 | if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
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27 | if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
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28 | if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
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29 | if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
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30 | if (t[2]) _.ops.pop();
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31 | _.trys.pop(); continue;
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32 | }
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33 | op = body.call(thisArg, _);
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34 | } catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
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35 | if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
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36 | }
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37 | };
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38 | Object.defineProperty(exports, "__esModule", { value: true });
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39 | var logger_1 = require("@bitblit/ratchet/dist/common/logger");
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40 | var web_handler_1 = require("./api-gateway/web-handler");
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41 | var lambda_event_detector_1 = require("@bitblit/ratchet/dist/aws/lambda-event-detector");
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42 | var event_util_1 = require("./api-gateway/event-util");
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43 |
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44 |
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45 |
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46 | var EpsilonGlobalHandler = (function () {
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47 | function EpsilonGlobalHandler(config) {
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48 | this.config = config;
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49 | if (!config) {
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50 | throw new Error('Cannot create with null config');
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51 | }
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52 | if (!config.disabled) {
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53 | config.disabled = {};
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54 | }
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55 | }
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56 | EpsilonGlobalHandler.prototype.fetchSaltMineHandler = function () {
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57 | return (this.config.saltMine && !this.config.disabled.saltMine) ? this.config.saltMine : null;
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58 | };
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59 | EpsilonGlobalHandler.prototype.fetchWebHandler = function () {
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60 | if (!this.cacheWebHandler) {
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61 | if (this.config.apiGateway && !this.config.disabled.apiGateway) {
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62 | this.cacheWebHandler = new web_handler_1.WebHandler(this.config.apiGateway);
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63 | }
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64 | }
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65 | return this.cacheWebHandler;
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66 | };
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67 | EpsilonGlobalHandler.prototype.lambdaHandler = function (event, context) {
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68 | return __awaiter(this, void 0, void 0, function () {
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69 | var rval, logLevel, wh, sm, err_1;
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70 | return __generator(this, function (_a) {
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71 | switch (_a.label) {
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72 | case 0:
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73 | rval = null;
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74 | _a.label = 1;
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75 | case 1:
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76 | _a.trys.push([1, 18, , 19]);
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77 | if (!this.config) {
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78 | logger_1.Logger.error('Config not found, abandoning');
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79 | return [2 , false];
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80 | }
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81 | logLevel = event_util_1.EventUtil.calcLogLevelViaEventOrEnvParam(logger_1.Logger.getLevel(), event, this.config.loggerConfig);
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82 | logger_1.Logger.setLevelByName(logLevel);
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83 | if (this.config.loggerConfig && this.config.loggerConfig.queryParamTracePrefixName &&
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84 | event.queryStringParameters &&
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85 | event.queryStringParameters[this.config.loggerConfig.queryParamTracePrefixName]) {
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86 | logger_1.Logger.info('Setting trace prefix to %s', event.queryStringParameters[this.config.loggerConfig.queryParamTracePrefixName]);
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87 | logger_1.Logger.setTracePrefix(event.queryStringParameters[this.config.loggerConfig.queryParamTracePrefixName]);
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88 | }
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89 | if (!lambda_event_detector_1.LambdaEventDetector.isValidApiGatewayEvent(event)) return [3 , 5];
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90 | logger_1.Logger.debug('Epsilon: APIG: %j', event);
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91 | wh = this.fetchWebHandler();
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92 | if (!wh) return [3 , 3];
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93 | return [4 , wh.lambdaHandler(event, context)];
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94 | case 2:
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95 | rval = _a.sent();
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96 | return [3 , 4];
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97 | case 3:
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98 | logger_1.Logger.warn('API Gateway event, but no handler or disabled');
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99 | _a.label = 4;
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100 | case 4: return [3 , 17];
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101 | case 5:
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102 | if (!lambda_event_detector_1.LambdaEventDetector.isValidSnsEvent(event)) return [3 , 10];
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103 | logger_1.Logger.debug('Epsilon: SNS: %j', event);
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104 | sm = this.fetchSaltMineHandler();
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105 | if (!(sm && sm.isSaltMineSNSEvent(event))) return [3 , 7];
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106 | return [4 , sm.processSaltMineSNSEvent(event, context)];
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107 | case 6:
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108 | rval = _a.sent();
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109 | return [3 , 9];
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110 | case 7: return [4 , this.processSnsEvent(event)];
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111 | case 8:
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112 | rval = _a.sent();
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113 | _a.label = 9;
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114 | case 9: return [3 , 17];
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115 | case 10:
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116 | if (!lambda_event_detector_1.LambdaEventDetector.isValidS3Event(event)) return [3 , 12];
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117 | logger_1.Logger.debug('Epsilon: S3: %j', event);
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118 | return [4 , this.processS3Event(event)];
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119 | case 11:
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120 | rval = _a.sent();
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121 | return [3 , 17];
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122 | case 12:
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123 | if (!lambda_event_detector_1.LambdaEventDetector.isValidCronEvent(event)) return [3 , 14];
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124 | logger_1.Logger.debug('Epsilon: CRON: %j', event);
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125 | return [4 , this.processCronEvent(event)];
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126 | case 13:
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127 | rval = _a.sent();
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128 | return [3 , 17];
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129 | case 14:
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130 | if (!lambda_event_detector_1.LambdaEventDetector.isValidDynamoDBEvent(event)) return [3 , 16];
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131 | logger_1.Logger.debug('Epsilon: DDB: %j', event);
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132 | return [4 , this.processDynamoDbEvent(event)];
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133 | case 15:
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134 | rval = _a.sent();
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135 | return [3 , 17];
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136 | case 16:
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137 | logger_1.Logger.warn('Unrecognized event, returning false : %j', event);
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138 | _a.label = 17;
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139 | case 17: return [2 , rval];
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140 | case 18:
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141 | err_1 = _a.sent();
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142 | logger_1.Logger.error('Error slipped out to outer edge. Logging and returning false : %s', err_1, err_1);
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143 | return [2 , false];
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144 | case 19: return [2 ];
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145 | }
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146 | });
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147 | });
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148 | };
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149 | ;
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150 | EpsilonGlobalHandler.prototype.processSnsEvent = function (evt) {
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151 | return __awaiter(this, void 0, void 0, function () {
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152 | var rval, finder, handler;
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153 | return __generator(this, function (_a) {
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154 | switch (_a.label) {
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155 | case 0:
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156 | rval = null;
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157 | if (!(this.config && this.config.sns && !this.config.disabled.sns && evt && evt.Records.length > 0)) return [3 , 3];
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158 | finder = evt.Records[0].Sns.TopicArn;
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159 | handler = this.findInMap(finder, this.config.sns.handlers);
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160 | if (!handler) return [3 , 2];
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161 | return [4 , handler(evt)];
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162 | case 1:
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163 | rval = _a.sent();
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164 | return [3 , 3];
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165 | case 2:
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166 | logger_1.Logger.info('Found no SNS handler for : %s', finder);
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167 | _a.label = 3;
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168 | case 3: return [2 , rval];
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169 | }
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170 | });
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171 | });
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172 | };
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173 | EpsilonGlobalHandler.prototype.processS3Event = function (evt) {
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174 | return __awaiter(this, void 0, void 0, function () {
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175 | var rval, finder, isRemoveEvent, handler, handler;
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176 | return __generator(this, function (_a) {
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177 | switch (_a.label) {
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178 | case 0:
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179 | rval = null;
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180 | if (!(this.config && this.config.s3 && !this.config.disabled.s3 && evt && evt.Records.length > 0)) return [3 , 7];
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181 | finder = evt.Records[0].s3.bucket.name + '/' + evt.Records[0].s3.object.key;
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182 | isRemoveEvent = evt.Records[0].eventName && evt.Records[0].eventName.startsWith('ObjectRemoved');
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183 | if (!isRemoveEvent) return [3 , 4];
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184 | handler = this.findInMap(finder, this.config.s3.removeHandlers);
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185 | if (!handler) return [3 , 2];
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186 | return [4 , handler(evt)];
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187 | case 1:
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188 | rval = _a.sent();
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189 | return [3 , 3];
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190 | case 2:
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191 | logger_1.Logger.info('Found no s3 create handler for : %s', finder);
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192 | _a.label = 3;
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193 | case 3: return [3 , 7];
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194 | case 4:
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195 | handler = this.findInMap(finder, this.config.s3.createHandlers);
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196 | if (!handler) return [3 , 6];
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197 | return [4 , handler(evt)];
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198 | case 5:
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199 | rval = _a.sent();
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200 | return [3 , 7];
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201 | case 6:
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202 | logger_1.Logger.info('Found no s3 remove handler for : %s', finder);
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203 | _a.label = 7;
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204 | case 7: return [2 , rval];
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205 | }
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206 | });
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207 | });
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208 | };
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209 | EpsilonGlobalHandler.prototype.processCronEvent = function (evt) {
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210 | return __awaiter(this, void 0, void 0, function () {
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211 | var rval, finder, handler;
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212 | return __generator(this, function (_a) {
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213 | switch (_a.label) {
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214 | case 0:
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215 | rval = null;
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216 | if (!(this.config && this.config.cron && !this.config.disabled.cron && evt && evt.resources[0])) return [3 , 3];
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217 | finder = evt.resources[0];
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218 | handler = this.findInMap(finder, this.config.cron.handlers);
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219 | if (!handler) return [3 , 2];
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220 | return [4 , handler(evt)];
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221 | case 1:
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222 | rval = _a.sent();
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223 | return [3 , 3];
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224 | case 2:
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225 | logger_1.Logger.info('Found no Cron handler for : %s', finder);
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226 | _a.label = 3;
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227 | case 3: return [2 , rval];
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228 | }
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229 | });
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230 | });
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231 | };
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232 | EpsilonGlobalHandler.prototype.processDynamoDbEvent = function (evt) {
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233 | return __awaiter(this, void 0, void 0, function () {
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234 | var rval, finder, handler;
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235 | return __generator(this, function (_a) {
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236 | switch (_a.label) {
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237 | case 0:
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238 | rval = null;
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239 | if (!(this.config && this.config.dynamoDb && !this.config.disabled.dynamoDb && evt && evt.Records && evt.Records.length > 0)) return [3 , 3];
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240 | finder = evt.Records[0].eventSourceARN;
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241 | handler = this.findInMap(finder, this.config.dynamoDb.handlers);
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242 | if (!handler) return [3 , 2];
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243 | return [4 , handler(evt)];
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244 | case 1:
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245 | rval = _a.sent();
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246 | return [3 , 3];
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247 | case 2:
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248 | logger_1.Logger.info('Found no Dynamo handler for : %s', finder);
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249 | _a.label = 3;
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250 | case 3: return [2 , rval];
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251 | }
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252 | });
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253 | });
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254 | };
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255 | EpsilonGlobalHandler.prototype.findInMap = function (toFind, map) {
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256 | var _this = this;
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257 | var rval = null;
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258 | map.forEach(function (val, key) {
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259 | if (_this.matchExact(key, toFind)) {
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260 | rval = val;
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261 | }
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262 | });
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263 | return rval;
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264 | };
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265 | EpsilonGlobalHandler.prototype.matchExact = function (r, str) {
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266 | var match = str.match(r);
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267 | return match != null && str == match[0];
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268 | };
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269 | return EpsilonGlobalHandler;
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270 | }());
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271 | exports.EpsilonGlobalHandler = EpsilonGlobalHandler;
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272 |
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