[BUG] - The file.log upload to ftp server. then lost \n line breaks

[EternalNight996]

The Upload code of Core

fn test() {
  let mut buffer = Vec::new();
  let mut f = fs::File::open(src).unwrap();
  let mut reader = f
    .read_to_end(&mut buffer)
    .map(|_| Cursor::new(buffer))
    .map_err(FtpError::ConnectionError)?;
  match upload_type {
    StorageUploadType::Append => {
      ftp.append_file(&fname, &mut reader)?;
    }
    StorageUploadType::Replace => {
      ftp.put_file(&fname, &mut reader)?;
    }
    StorageUploadType::Once => {
      if ftp.size(&fname).is_err() {
        ftp.put_file(&fname, &mut reader)?;
      } else {
        /* 已经存在 */
      }
    }
  };
}

[EternalNight996]

I have found the problem, but please do not handle line breaks on different platforms;
Adding the following code solves this problem;
So I have the following proposal: for FPT uploads, we can increase the recognition of the FTP server platform;
Then process the data;
Secondly, increase the judgment of file types and only handle text types;

Let mut buffer=Vec:: new();
Let mut f=fs:: File:: open (src). unwrap();
Let mut reader=f
. readuto_end (&mut buffer)
. map (| _ |{
//Iterate over multiple references to each byte and replace '\ n' with '\ n'
//Use map to replace '\ n' with '\ n' and collect into a new Vec<u8>
Let modified_data: Vec<u8>=buffer
. iter()
. map (|&byte |{
If byte==b '\ n'{
Vec! [b '\ r', b '\ n']
}Else{
Vec! [byte]
}
})
. flatten()
. collect();

Cursor:: new (modified_data)
})
. map_err (FtpError: ConnectionError)?;