1.0.0 • Published 2 years ago

@liflig/cdk-cloudfront-auth v1.0.0

Weekly downloads
-
License
MIT
Repository
github
Last release
2 years ago

CloudFront authorization with Cognito for CDK

Easily add Cognito-based authorization to your CloudFront distribution, to place static files behind authorization.

This is based on https://github.com/aws-samples/cloudfront-authorization-at-edge.

Usage

npm install @liflig/cdk-cloudfront-auth

Deploy the Lambda@Edge functions to us-east-1:

// In a stack deployed to us-east-1.
const authLambdas = new AuthLambdas(this, "AuthLambdas", {
  regions: ["eu-west-1"], // Regions to make Lambda version params available.
})

Deploy the Cognito and CloudFront setup in whatever region of your choice:

const auth = new CloudFrontAuth(this, "Auth", {
  cognitoAuthDomain: `${domain.domainName}.auth.${region}.amazoncognito.com`,
  authLambdas, // AuthLambdas from above
  userPool, // Cognito User Pool
})
const distribution = new cloudfront.Distribution(this, "Distribution", {
  defaultBehavior: auth.createProtectedBehavior(origin),
  additionalBehaviors: auth.createAuthPagesBehaviors(origin),
})
auth.updateClient("ClientUpdate", {
  signOutUrl: `https://${distribution.distributionDomainName}${auth.signOutRedirectTo}`,
  callbackUrl: `https://${distribution.distributionDomainName}${auth.callbackPath}`,
})

If using CloudFrontWebDistribution instead of Distribution:

const distribution = new cloudfront.CloudFrontWebDistribution(this, "Distribution", {
  originConfigs: [
    {
      behaviors: [
        ...auth.authPages,
        {
          isDefaultBehavior: true,
          lambdaFunctionAssociations: auth.authFilters,
        },
      ],
    },
  ],
})

Customizing authorization

The CloudFrontAuth construct accepts a requireGroupAnyOf property that causes access to be restricted to only users in specific groups.

cdkcloudfrontauthentication
@liflig/cdk-lambda-config@henrist/cdk-cross-region-params
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