1 | ;
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2 | Object.defineProperty(exports, "__esModule", { value: true });
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3 | exports.addToDeadLetterQueueResourcePolicy = exports.addLambdaPermission = exports.singletonEventRole = exports.bindBaseTargetConfig = void 0;
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4 | const iam = require("@aws-cdk/aws-iam");
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5 | const core_1 = require("@aws-cdk/core");
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6 | // keep this import separate from other imports to reduce chance for merge conflicts with v2-main
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7 | // eslint-disable-next-line no-duplicate-imports, import/order
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8 | const core_2 = require("@aws-cdk/core");
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9 | /**
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10 | * Bind props to base rule target config.
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11 | * @internal
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12 | */
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13 | function bindBaseTargetConfig(props) {
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14 | let { deadLetterQueue, retryAttempts, maxEventAge } = props;
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15 | return {
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16 | deadLetterConfig: deadLetterQueue ? { arn: deadLetterQueue?.queueArn } : undefined,
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17 | retryPolicy: retryAttempts || maxEventAge
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18 | ? {
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19 | maximumRetryAttempts: retryAttempts,
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20 | maximumEventAgeInSeconds: maxEventAge?.toSeconds({ integral: true }),
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21 | }
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22 | : undefined,
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23 | };
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24 | }
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25 | exports.bindBaseTargetConfig = bindBaseTargetConfig;
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26 | /**
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27 | * Obtain the Role for the EventBridge event
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28 | *
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29 | * If a role already exists, it will be returned. This ensures that if multiple
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30 | * events have the same target, they will share a role.
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31 | * @internal
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32 | */
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33 | function singletonEventRole(scope) {
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34 | const id = 'EventsRole';
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35 | const existing = scope.node.tryFindChild(id);
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36 | if (existing) {
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37 | return existing;
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38 | }
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39 | const role = new iam.Role(scope, id, {
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40 | roleName: core_1.PhysicalName.GENERATE_IF_NEEDED,
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41 | assumedBy: new iam.ServicePrincipal('events.amazonaws.com'),
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42 | });
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43 | return role;
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44 | }
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45 | exports.singletonEventRole = singletonEventRole;
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46 | /**
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47 | * Allows a Lambda function to be called from a rule
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48 | * @internal
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49 | */
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50 | function addLambdaPermission(rule, handler) {
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51 | let scope;
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52 | let node = handler.permissionsNode;
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53 | let permissionId = `AllowEventRule${core_1.Names.nodeUniqueId(rule.node)}`;
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54 | if (rule instanceof core_2.Construct) {
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55 | // Place the Permission resource in the same stack as Rule rather than the Function
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56 | // This is to reduce circular dependency when the lambda handler and the rule are across stacks.
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57 | scope = rule;
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58 | node = rule.node;
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59 | permissionId = `AllowEventRule${core_1.Names.nodeUniqueId(handler.node)}`;
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60 | }
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61 | if (!node.tryFindChild(permissionId)) {
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62 | handler.addPermission(permissionId, {
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63 | scope,
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64 | action: 'lambda:InvokeFunction',
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65 | principal: new iam.ServicePrincipal('events.amazonaws.com'),
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66 | sourceArn: rule.ruleArn,
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67 | });
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68 | }
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69 | }
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70 | exports.addLambdaPermission = addLambdaPermission;
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71 | /**
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72 | * Allow a rule to send events with failed invocation to an Amazon SQS queue.
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73 | * @internal
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74 | */
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75 | function addToDeadLetterQueueResourcePolicy(rule, queue) {
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76 | if (!sameEnvDimension(rule.env.region, queue.env.region)) {
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77 | throw new Error(`Cannot assign Dead Letter Queue in region ${queue.env.region} to the rule ${core_1.Names.nodeUniqueId(rule.node)} in region ${rule.env.region}. Both the queue and the rule must be in the same region.`);
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78 | }
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79 | // Skip Resource Policy creation if the Queue is not in the same account.
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80 | // There is no way to add a target onto an imported rule, so we can assume we will run the following code only
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81 | // in the account where the rule is created.
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82 | if (sameEnvDimension(rule.env.account, queue.env.account)) {
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83 | const policyStatementId = `AllowEventRule${core_1.Names.nodeUniqueId(rule.node)}`;
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84 | queue.addToResourcePolicy(new iam.PolicyStatement({
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85 | sid: policyStatementId,
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86 | principals: [new iam.ServicePrincipal('events.amazonaws.com')],
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87 | effect: iam.Effect.ALLOW,
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88 | actions: ['sqs:SendMessage'],
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89 | resources: [queue.queueArn],
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90 | conditions: {
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91 | ArnEquals: {
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92 | 'aws:SourceArn': rule.ruleArn,
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93 | },
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94 | },
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95 | }));
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96 | }
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97 | else {
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98 | core_1.Annotations.of(rule).addWarning(`Cannot add a resource policy to your dead letter queue associated with rule ${rule.ruleName} because the queue is in a different account. You must add the resource policy manually to the dead letter queue in account ${queue.env.account}.`);
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99 | }
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100 | }
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101 | exports.addToDeadLetterQueueResourcePolicy = addToDeadLetterQueueResourcePolicy;
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102 | /**
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103 | * Whether two string probably contain the same environment dimension (region or account)
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104 | *
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105 | * Used to compare either accounts or regions, and also returns true if both
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106 | * are unresolved (in which case both are expted to be "current region" or "current account").
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107 | * @internal
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108 | */
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109 | function sameEnvDimension(dim1, dim2) {
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110 | return [core_1.TokenComparison.SAME, core_1.TokenComparison.BOTH_UNRESOLVED].includes(core_1.Token.compareStrings(dim1, dim2));
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111 | }
|
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{ arn: deadLetterQueue?.queueArn } : undefined,\n    retryPolicy: retryAttempts || maxEventAge\n      ? {\n        maximumRetryAttempts: retryAttempts,\n        maximumEventAgeInSeconds: maxEventAge?.toSeconds({ integral: true }),\n      }\n      : undefined,\n  };\n}\n\n\n/**\n * Obtain the Role for the EventBridge event\n *\n * If a role already exists, it will be returned. This ensures that if multiple\n * events have the same target, they will share a role.\n * @internal\n */\nexport function singletonEventRole(scope: IConstruct): iam.IRole {\n  const id = 'EventsRole';\n  const existing = scope.node.tryFindChild(id) as iam.IRole;\n  if (existing) { return existing; }\n\n  const role = new iam.Role(scope as Construct, id, {\n    roleName: PhysicalName.GENERATE_IF_NEEDED,\n    assumedBy: new iam.ServicePrincipal('events.amazonaws.com'),\n  });\n\n  return role;\n}\n\n/**\n * Allows a Lambda function to be called from a rule\n * @internal\n */\nexport function addLambdaPermission(rule: events.IRule, handler: lambda.IFunction): void {\n  let scope: Construct | undefined;\n  let node: ConstructNode = handler.permissionsNode;\n  let permissionId = `AllowEventRule${Names.nodeUniqueId(rule.node)}`;\n  if (rule instanceof Construct) {\n    // Place the Permission resource in the same stack as Rule rather than the Function\n    // This is to reduce circular dependency when the lambda handler and the rule are across stacks.\n    scope = rule;\n    node = rule.node;\n    permissionId = `AllowEventRule${Names.nodeUniqueId(handler.node)}`;\n  }\n  if (!node.tryFindChild(permissionId)) {\n    handler.addPermission(permissionId, {\n      scope,\n      action: 'lambda:InvokeFunction',\n      principal: new iam.ServicePrincipal('events.amazonaws.com'),\n      sourceArn: rule.ruleArn,\n    });\n  }\n}\n\n/**\n * Allow a rule to send events with failed invocation to an Amazon SQS queue.\n * @internal\n */\nexport function addToDeadLetterQueueResourcePolicy(rule: events.IRule, queue: sqs.IQueue) {\n  if (!sameEnvDimension(rule.env.region, queue.env.region)) {\n    throw new Error(`Cannot assign Dead Letter Queue in region ${queue.env.region} to the rule ${Names.nodeUniqueId(rule.node)} in region ${rule.env.region}. Both the queue and the rule must be in the same region.`);\n  }\n\n  // Skip Resource Policy creation if the Queue is not in the same account.\n  // There is no way to add a target onto an imported rule, so we can assume we will run the following code only\n  // in the account where the rule is created.\n  if (sameEnvDimension(rule.env.account, queue.env.account)) {\n    const policyStatementId = `AllowEventRule${Names.nodeUniqueId(rule.node)}`;\n\n    queue.addToResourcePolicy(new iam.PolicyStatement({\n      sid: policyStatementId,\n      principals: [new iam.ServicePrincipal('events.amazonaws.com')],\n      effect: iam.Effect.ALLOW,\n      actions: ['sqs:SendMessage'],\n      resources: [queue.queueArn],\n      conditions: {\n        ArnEquals: {\n          'aws:SourceArn': rule.ruleArn,\n        },\n      },\n    }));\n  } else {\n    Annotations.of(rule).addWarning(`Cannot add a resource policy to your dead letter queue associated with rule ${rule.ruleName} because the queue is in a different account. You must add the resource policy manually to the dead letter queue in account ${queue.env.account}.`);\n  }\n}\n\n\n/**\n * Whether two string probably contain the same environment dimension (region or account)\n *\n * Used to compare either accounts or regions, and also returns true if both\n * are unresolved (in which case both are expted to be \"current region\" or \"current account\").\n * @internal\n */\nfunction sameEnvDimension(dim1: string, dim2: string) {\n  return [TokenComparison.SAME, TokenComparison.BOTH_UNRESOLVED].includes(Token.compareStrings(dim1, dim2));\n}"]} |
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