32 lines
1.4 KiB
JavaScript
32 lines
1.4 KiB
JavaScript
|
"use strict";
|
||
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
||
|
|
exports.getAwsChunkedEncodingStream = void 0;
|
||
|
|
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`);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
});
|
||
|
|
};
|
||
|
|
exports.getAwsChunkedEncodingStream = getAwsChunkedEncodingStream;
|