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=============================================
Command line file uploader for hidan.sh


USAGE
-----
- Anonymous upload  - "./barfi path/to/file.txt"
- User upload       - "./barfi --dir=directoryId --token=userId path/to/file.txt"
- Silent upload     - "./barfi --silent path/to/file.txt"

THE API
-------
1. Initialization: The uploader sends an initialization request to the server to get an upload ID and signed URLs for each chunk.
2. Chunk Upload: The file is divided into chunks(fixed 5 GB), and each chunk is uploaded to the server using the signed URLs.
3. Completion: Once all chunks are uploaded, a completion request is sent to the server to finalize the upload.

Example payloads:

Initialization Request:
POST /f/
    {
       "name": "example.txt",
       "size": 10485760 // 10MB
    }

Initialization Response:
    {
       "uploadId": "12345",
       "uploadUrls": [
         "https://example.com/upload/part1",
         "https://example.com/upload/part2",
         ...
       ]
    }

--------------------------------------------

Chunk Upload Request (one for each chunk):
PUT https://example.com/upload/part1
    [chunk data]

Chunk Upload Response:
    HTTP 200 OK
    Headers: {"ETag": "etag_value"}

--------------------------------------------

Completion Request:
POST /f/12345
{
   "directoryId": "directory_id (optional for anonymous upload)",
   "parts": [
     {"ETag": "etag_value", "PartNumber": 1},
     {"ETag": "etag_value", "PartNumber": 2},
     ...
   ]
}

Completion Response:
{
   "id": "final_file_id"
}