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resources/app/node_modules/@aws-sdk/middleware-sdk-s3/dist-es/s3-express/functions/s3ExpressMiddleware.js

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+import { HttpRequest } from "@smithy/protocol-http";
+import { S3_EXPRESS_AUTH_SCHEME, S3_EXPRESS_BACKEND, S3_EXPRESS_BUCKET_TYPE, SESSION_TOKEN_HEADER } from "../constants";
+export const s3ExpressMiddleware = (options) => {
+    return (next, context) => async (args) => {
+        if (context.endpointV2) {
+            const endpoint = context.endpointV2;
+            const isS3ExpressAuth = endpoint.properties?.authSchemes?.[0]?.name === S3_EXPRESS_AUTH_SCHEME;
+            const isS3ExpressBucket = endpoint.properties?.backend === S3_EXPRESS_BACKEND ||
+                endpoint.properties?.bucketType === S3_EXPRESS_BUCKET_TYPE;
+            if (isS3ExpressBucket) {
+                context.isS3ExpressBucket = true;
+            }
+            if (isS3ExpressAuth) {
+                const requestBucket = args.input.Bucket;
+                if (requestBucket) {
+                    const s3ExpressIdentity = await options.s3ExpressIdentityProvider.getS3ExpressIdentity(await options.credentials(), {
+                        Bucket: requestBucket,
+                    });
+                    context.s3ExpressIdentity = s3ExpressIdentity;
+                    if (HttpRequest.isInstance(args.request) && s3ExpressIdentity.sessionToken) {
+                        args.request.headers[SESSION_TOKEN_HEADER] = s3ExpressIdentity.sessionToken;
+                    }
+                }
+            }
+        }
+        return next(args);
+    };
+};
+export const s3ExpressMiddlewareOptions = {
+    name: "s3ExpressMiddleware",
+    step: "build",
+    tags: ["S3", "S3_EXPRESS"],
+    override: true,
+};
+export const getS3ExpressPlugin = (options) => ({
+    applyToStack: (clientStack) => {
+        clientStack.add(s3ExpressMiddleware(options), s3ExpressMiddlewareOptions);
+    },
+});