feat(experimentalIdentityAndAuth): add @aws.auth#sigv4 TypeScript code

Author: Steven Yuan

.changeset/shaggy-adults-yawn.md

@@ -0,0 +1,5 @@
+---
+"@smithy/experimental-identity-and-auth": patch
+---
+
+INTERNAL USE ONLY: Add `@aws.auth#sigv4` interfaces and classes

packages/experimental-identity-and-auth/package.json

@@ -24,6 +24,7 @@
   "license": "Apache-2.0",
   "dependencies": {
     "@smithy/protocol-http": "workspace:^",
+    "@smithy/signature-v4": "workspace:^",
     "@smithy/types": "workspace:^",
     "tslib": "^2.5.0"
   },

packages/experimental-identity-and-auth/src/SigV4Signer.ts

@@ -0,0 +1,33 @@
+import { HttpRequest } from "@smithy/protocol-http";
+import { SignatureV4 } from "@smithy/signature-v4";
+import { AwsCredentialIdentity, HttpRequest as IHttpRequest } from "@smithy/types";
+
+import { HttpSigner } from "./HttpSigner";
+
+/**
+ * @internal
+ */
+export class SigV4Signer implements HttpSigner {
+  async sign(
+    httpRequest: HttpRequest,
+    identity: AwsCredentialIdentity,
+    signingProperties: Record<string, any>
+  ): Promise<IHttpRequest> {
+    const clonedRequest = httpRequest.clone();
+    const signer = new SignatureV4({
+      applyChecksum: signingProperties.applyChecksum !== undefined ? signingProperties.applyChecksum : true,
+      credentials: identity,
+      region: signingProperties.region,
+      service: signingProperties.name,
+      sha256: signingProperties.sha256,
+      uriEscapePath: signingProperties.uriEscapePath !== undefined ? signingProperties.uriEscapePath : true,
+    });
+    return signer.sign(clonedRequest, {
+      signingDate: new Date(),
+      signableHeaders: signingProperties.signableHeaders,
+      unsignableHeaders: signingProperties.unsignableHeaders,
+      signingRegion: signingProperties.signingRegion,
+      signingService: signingProperties.signingService,
+    });
+  }
+}

packages/experimental-identity-and-auth/src/index.ts

@@ -1,8 +1,9 @@
 export * from "./IdentityProviderConfiguration";
 export * from "./HttpAuthScheme";
 export * from "./HttpSigner";
-export * from "./noAuth";
+export * from "./SigV4Signer";
 export * from "./apiKeyIdentity";
 export * from "./httpApiKeyAuth";
 export * from "./httpBearerAuth";
+export * from "./noAuth";
 export * from "./tokenIdentity";

yarn.lock

@@ -1890,6 +1890,7 @@ __metadata:
   resolution: "@smithy/experimental-identity-and-auth@workspace:packages/experimental-identity-and-auth"
   dependencies:
     "@smithy/protocol-http": "workspace:^"
+    "@smithy/signature-v4": "workspace:^"
     "@smithy/types": "workspace:^"
     "@tsconfig/recommended": 1.0.1
     concurrently: 7.0.0
@@ -2330,7 +2331,7 @@ __metadata:
   languageName: unknown
   linkType: soft
 
-"@smithy/signature-v4@workspace:packages/signature-v4":
+"@smithy/signature-v4@workspace:^, @smithy/signature-v4@workspace:packages/signature-v4":
   version: 0.0.0-use.local
   resolution: "@smithy/signature-v4@workspace:packages/signature-v4"
   dependencies: