1 | ;
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2 | Object.defineProperty(exports, "__esModule", { value: true });
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3 | exports.CacheBehavior = void 0;
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4 | const iam = require("@aws-cdk/aws-iam");
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5 | const cache_policy_1 = require("../cache-policy");
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6 | const distribution_1 = require("../distribution");
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7 | /**
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8 | * Allows configuring a variety of CloudFront functionality for a given URL path pattern.
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9 | *
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10 | * Note: This really should simply by called 'Behavior', but this name is already taken by the legacy
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11 | * CloudFrontWebDistribution implementation.
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12 | */
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13 | class CacheBehavior {
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14 | constructor(originId, props) {
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15 | this.props = props;
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16 | this.originId = originId;
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17 | this.validateEdgeLambdas(props.edgeLambdas);
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18 | this.grantEdgeLambdaFunctionExecutionRole(props.edgeLambdas);
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19 | }
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20 | /**
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21 | * Creates and returns the CloudFormation representation of this behavior.
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22 | * This renders as a "CacheBehaviorProperty" regardless of if this is a default
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23 | * cache behavior or not, as the two are identical except that the pathPattern
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24 | * is omitted for the default cache behavior.
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25 | *
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26 | * @internal
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27 | */
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28 | _renderBehavior() {
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29 | var _a, _b, _c, _d, _e, _f, _g, _h, _j, _k;
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30 | return {
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31 | pathPattern: this.props.pathPattern,
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32 | targetOriginId: this.originId,
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33 | allowedMethods: (_a = this.props.allowedMethods) === null || _a === void 0 ? void 0 : _a.methods,
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34 | cachedMethods: (_b = this.props.cachedMethods) === null || _b === void 0 ? void 0 : _b.methods,
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35 | cachePolicyId: ((_c = this.props.cachePolicy) !== null && _c !== void 0 ? _c : cache_policy_1.CachePolicy.CACHING_OPTIMIZED).cachePolicyId,
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36 | compress: (_d = this.props.compress) !== null && _d !== void 0 ? _d : true,
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37 | originRequestPolicyId: (_e = this.props.originRequestPolicy) === null || _e === void 0 ? void 0 : _e.originRequestPolicyId,
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38 | responseHeadersPolicyId: (_f = this.props.responseHeadersPolicy) === null || _f === void 0 ? void 0 : _f.responseHeadersPolicyId,
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39 | smoothStreaming: this.props.smoothStreaming,
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40 | viewerProtocolPolicy: (_g = this.props.viewerProtocolPolicy) !== null && _g !== void 0 ? _g : distribution_1.ViewerProtocolPolicy.ALLOW_ALL,
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41 | functionAssociations: (_h = this.props.functionAssociations) === null || _h === void 0 ? void 0 : _h.map(association => ({
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42 | functionArn: association.function.functionArn,
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43 | eventType: association.eventType.toString(),
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44 | })),
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45 | lambdaFunctionAssociations: (_j = this.props.edgeLambdas) === null || _j === void 0 ? void 0 : _j.map(edgeLambda => ({
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46 | lambdaFunctionArn: edgeLambda.functionVersion.edgeArn,
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47 | eventType: edgeLambda.eventType.toString(),
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48 | includeBody: edgeLambda.includeBody,
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49 | })),
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50 | trustedKeyGroups: (_k = this.props.trustedKeyGroups) === null || _k === void 0 ? void 0 : _k.map(keyGroup => keyGroup.keyGroupId),
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51 | };
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52 | }
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53 | validateEdgeLambdas(edgeLambdas) {
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54 | const includeBodyEventTypes = [distribution_1.LambdaEdgeEventType.ORIGIN_REQUEST, distribution_1.LambdaEdgeEventType.VIEWER_REQUEST];
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55 | if (edgeLambdas && edgeLambdas.some(lambda => lambda.includeBody && !includeBodyEventTypes.includes(lambda.eventType))) {
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56 | throw new Error('\'includeBody\' can only be true for ORIGIN_REQUEST or VIEWER_REQUEST event types.');
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57 | }
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58 | }
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59 | grantEdgeLambdaFunctionExecutionRole(edgeLambdas) {
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60 | if (!edgeLambdas || edgeLambdas.length === 0) {
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61 | return;
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62 | }
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63 | edgeLambdas.forEach((edgeLambda) => {
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64 | const role = edgeLambda.functionVersion.role;
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65 | if (role && role instanceof iam.Role && role.assumeRolePolicy) {
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66 | role.assumeRolePolicy.addStatements(new iam.PolicyStatement({
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67 | actions: ['sts:AssumeRole'],
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68 | principals: [new iam.ServicePrincipal('edgelambda.amazonaws.com')],
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69 | }));
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70 | }
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71 | });
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72 | }
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73 | }
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74 | exports.CacheBehavior = CacheBehavior;
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CachePolicy.CACHING_OPTIMIZED).cachePolicyId,\n      compress: this.props.compress ?? true,\n      originRequestPolicyId: this.props.originRequestPolicy?.originRequestPolicyId,\n      responseHeadersPolicyId: this.props.responseHeadersPolicy?.responseHeadersPolicyId,\n      smoothStreaming: this.props.smoothStreaming,\n      viewerProtocolPolicy: this.props.viewerProtocolPolicy ?? ViewerProtocolPolicy.ALLOW_ALL,\n      functionAssociations: this.props.functionAssociations?.map(association => ({\n        functionArn: association.function.functionArn,\n        eventType: association.eventType.toString(),\n      })),\n      lambdaFunctionAssociations: this.props.edgeLambdas?.map(edgeLambda => ({\n        lambdaFunctionArn: edgeLambda.functionVersion.edgeArn,\n        eventType: edgeLambda.eventType.toString(),\n        includeBody: edgeLambda.includeBody,\n      })),\n      trustedKeyGroups: this.props.trustedKeyGroups?.map(keyGroup => keyGroup.keyGroupId),\n    };\n  }\n\n  private validateEdgeLambdas(edgeLambdas?: EdgeLambda[]) {\n    const includeBodyEventTypes = [LambdaEdgeEventType.ORIGIN_REQUEST, LambdaEdgeEventType.VIEWER_REQUEST];\n    if (edgeLambdas && edgeLambdas.some(lambda => lambda.includeBody && !includeBodyEventTypes.includes(lambda.eventType))) {\n      throw new Error('\\'includeBody\\' can only be true for ORIGIN_REQUEST or VIEWER_REQUEST event types.');\n    }\n  }\n\n  private grantEdgeLambdaFunctionExecutionRole(edgeLambdas?: EdgeLambda[]) {\n    if (!edgeLambdas || edgeLambdas.length === 0) { return; }\n    edgeLambdas.forEach((edgeLambda) => {\n      const role = edgeLambda.functionVersion.role;\n      if (role && role instanceof iam.Role && role.assumeRolePolicy) {\n        role.assumeRolePolicy.addStatements(new iam.PolicyStatement({\n          actions: ['sts:AssumeRole'],\n          principals: [new iam.ServicePrincipal('edgelambda.amazonaws.com')],\n        }));\n      }\n    });\n  }\n}\n"]} |
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