initial commit

2026-05-13 14:20:41 +00:00
commit 6e178d2012
6022 changed files with 399872 additions and 0 deletions
@@ -0,0 +1,27 @@
+export const getAwsChunkedEncodingStream = (readableStream, options) => {
+    const { base64Encoder, bodyLengthChecker, checksumAlgorithmFn, checksumLocationName, streamHasher } = options;
+    const checksumRequired = base64Encoder !== undefined &&
+        bodyLengthChecker !== undefined &&
+        checksumAlgorithmFn !== undefined &&
+        checksumLocationName !== undefined &&
+        streamHasher !== undefined;
+    const digest = checksumRequired ? streamHasher(checksumAlgorithmFn, readableStream) : undefined;
+    const reader = readableStream.getReader();
+    return new ReadableStream({
+        async pull(controller) {
+            const { value, done } = await reader.read();
+            if (done) {
+                controller.enqueue(`0\r\n`);
+                if (checksumRequired) {
+                    const checksum = base64Encoder(await digest);
+                    controller.enqueue(`${checksumLocationName}:${checksum}\r\n`);
+                    controller.enqueue(`\r\n`);
+                }
+                controller.close();
+            }
+            else {
+                controller.enqueue(`${(bodyLengthChecker(value) || 0).toString(16)}\r\n${value}\r\n`);
+            }
+        },
+    });
+};