Software: Apache/2.4.41 (Ubuntu). PHP/8.0.30 

uname -a: Linux apirnd 5.4.0-204-generic #224-Ubuntu SMP Thu Dec 5 13:38:28 UTC 2024 x86_64 

uid=33(www-data) gid=33(www-data) groups=33(www-data) 

Safe-mode: OFF (not secure)

/var/www/html/aws_s3/node_modules/@smithy/util-stream/dist-es/   drwxr-xr-x
Free 12.98 GB of 57.97 GB (22.39%)
                            Encoder    Tools    Proc.    FTP brute    Sec.    SQL    PHP-code    Update    Self remove    Logout    

Viewing file:     getAwsChunkedEncodingStream.js (1.24 KB)      -rw-r--r--

import { Readable } from "stream";
export const getAwsChunkedEncodingStream = (readableStream, options) => {
    const { base64Encoder, bodyLengthChecker, checksumAlgorithmFn, checksumLocationName, streamHasher } = options;
    const checksumRequired = base64Encoder !== undefined &&
        checksumAlgorithmFn !== undefined &&
        checksumLocationName !== undefined &&
        streamHasher !== undefined;
    const digest = checksumRequired ? streamHasher(checksumAlgorithmFn, readableStream) : undefined;
    const awsChunkedEncodingStream = new Readable({ read: () => { } });
    readableStream.on("data", (data) => {
        const length = bodyLengthChecker(data) || 0;
        awsChunkedEncodingStream.push(`${length.toString(16)}\r\n`);
        awsChunkedEncodingStream.push(data);
        awsChunkedEncodingStream.push("\r\n");
    });
    readableStream.on("end", async () => {
        awsChunkedEncodingStream.push(`0\r\n`);
        if (checksumRequired) {
            const checksum = base64Encoder(await digest);
            awsChunkedEncodingStream.push(`${checksumLocationName}:${checksum}\r\n`);
            awsChunkedEncodingStream.push(`\r\n`);
        }
        awsChunkedEncodingStream.push(null);
    });
    return awsChunkedEncodingStream;
};