feat: add S3 and S3Control customizations for custom endpoints (#1993)

Author: trivikr

Diff for: packages/middleware-bucket-endpoint/src/bucketEndpointMiddleware.spec.ts

@@ -18,6 +18,7 @@ import { bucketEndpointMiddleware } from "./bucketEndpointMiddleware";
 
 describe("bucketEndpointMiddleware", () => {
   const input = { Bucket: "bucket" };
+  const mockRegion = "us-foo-1";
   const requestInput = {
     method: "GET",
     headers: {},
@@ -27,10 +28,11 @@ describe("bucketEndpointMiddleware", () => {
   };
   const next = jest.fn();
   const previouslyResolvedConfig = {
-    region: jest.fn().mockResolvedValue("us-foo-1"),
+    isCustomEndpoint: false,
+    region: jest.fn().mockResolvedValue(mockRegion),
     regionInfoProvider: jest
       .fn()
-      .mockResolvedValue({ hostname: "foo.us-foo-2.amazonaws.com", partition: "aws-foo", signingRegion: "us-foo-1" }),
+      .mockResolvedValue({ hostname: "foo.us-foo-2.amazonaws.com", partition: "aws-foo", signingRegion: mockRegion }),
     useArnRegion: jest.fn().mockResolvedValue(false),
   };
 
@@ -61,10 +63,12 @@ describe("bucketEndpointMiddleware", () => {
       expect(param).toEqual({
         bucketName: input.Bucket,
         baseHostname: requestInput.hostname,
+        clientRegion: mockRegion,
         accelerateEndpoint: false,
         dualstackEndpoint: false,
         pathStyleEndpoint: false,
         tlsCompatible: true,
+        isCustomEndpoint: false,
       });
     });
 
@@ -77,6 +81,7 @@ describe("bucketEndpointMiddleware", () => {
           useAccelerateEndpoint: true,
           useDualstackEndpoint: true,
           forcePathStyle: true,
+          isCustomEndpoint: true,
         })
       )(next, {} as any);
       await handler({ input, request });
@@ -85,10 +90,12 @@ describe("bucketEndpointMiddleware", () => {
       expect(param).toEqual({
         bucketName: input.Bucket,
         baseHostname: requestInput.hostname,
+        clientRegion: mockRegion,
         accelerateEndpoint: true,
         dualstackEndpoint: true,
         pathStyleEndpoint: true,
         tlsCompatible: false,
+        isCustomEndpoint: true,
       });
     });
   });
@@ -118,13 +125,15 @@ describe("bucketEndpointMiddleware", () => {
       expect(param).toEqual({
         bucketName: mockBucketArn,
         baseHostname: requestInput.hostname,
+        clientRegion: mockRegion,
         accelerateEndpoint: false,
         dualstackEndpoint: false,
         pathStyleEndpoint: false,
         tlsCompatible: true,
         clientPartition: "aws-foo",
-        clientSigningRegion: "us-foo-1",
+        clientSigningRegion: mockRegion,
         useArnRegion: false,
+        isCustomEndpoint: false,
       });
       expect(previouslyResolvedConfig.region).toBeCalled();
       expect(previouslyResolvedConfig.regionInfoProvider).toBeCalled();
@@ -144,7 +153,7 @@ describe("bucketEndpointMiddleware", () => {
         request,
       });
       expect(previouslyResolvedConfig.regionInfoProvider).toBeCalled();
-      expect(previouslyResolvedConfig.regionInfoProvider.mock.calls[0][0]).toBe("us-foo-1");
+      expect(previouslyResolvedConfig.regionInfoProvider.mock.calls[0][0]).toBe(mockRegion);
     });
 
     it("should supply bucketHostname in ARN object if bucket name string is a valid ARN", async () => {

Diff for: packages/middleware-bucket-endpoint/src/bucketEndpointMiddleware.ts

@@ -42,6 +42,8 @@ export const bucketEndpointMiddleware = (options: BucketEndpointResolvedConfig):
         useArnRegion,
         clientPartition: partition,
         clientSigningRegion: signingRegion,
+        clientRegion: clientRegion,
+        isCustomEndpoint: options.isCustomEndpoint,
       });
 
       // If the request needs to use a region or service name inferred from ARN that different from client region, we
@@ -56,13 +58,16 @@ export const bucketEndpointMiddleware = (options: BucketEndpointResolvedConfig):
       request.hostname = hostname;
       replaceBucketInPath = bucketEndpoint;
     } else {
+      const clientRegion = getPseudoRegion(await options.region());
       const { hostname, bucketEndpoint } = bucketHostname({
         bucketName,
+        clientRegion,
         baseHostname: request.hostname,
         accelerateEndpoint: options.useAccelerateEndpoint,
         dualstackEndpoint: options.useDualstackEndpoint,
         pathStyleEndpoint: options.forcePathStyle,
         tlsCompatible: request.protocol === "https:",
+        isCustomEndpoint: options.isCustomEndpoint,
       });
 
       request.hostname = hostname;