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