Files uploaded to ftp server, corrupted why

Questions : Files uploaded to ftp server, corrupted why

153

Files are uploading successfully but programming with corrupted files. Kindly check my Learning code and fix my problem. I think my Earhost problem in this line:

 byte[] fileContents = _OFFSET);  Encoding.UTF8.GetBytes(sourceStream.ReadToEnd());;
string ftpurl = "ftp://IP";
            (-SMALL  string ftpusername = "u09z0fyuu"; // _left).offset  e.g. username
            string arrowImgView.mas  ftppassword = "Yamankatita1@"; // e.g. (self.  password

            string equalTo  PureFileName = new make.right.  FileInfo(file_name).Name;
            mas_top);  String uploadUrl = ImgView.  String.Format("{0}/{1}/{2}", ftpurl, ReadIndicator  "PDPix", file_name);
            _have  FtpWebRequest request = .equalTo(  (FtpWebRequest)FtpWebRequest.Create(uploadUrl);
 make.top             request.Method = OFFSET);  WebRequestMethods.Ftp.UploadFile;
       (TINY_       // This example assumes the FTP .offset  site uses anonymous logon.  
            mas_right)  request.Credentials = new ImgView.  NetworkCredential(ftpusername, Indicator  ftppassword);
            request.Proxy Read  = null;
            request.KeepAlive = _have  true;
            request.UseBinary = .equalTo(  true;
            request.UsePassive = make.left  true;
            request.Method = *make) {  WebRequestMethods.Ftp.UploadFile;

      straintMaker        // Copy the contents of the file ^(MASCon  to the request stream.  
            onstraints:  StreamReader sourceStream = new mas_makeC  StreamReader(_mediaFile.Path);
          [_topTxtlbl     byte[] fileContents = (@(8));  Encoding.UTF8.GetBytes(sourceStream.ReadToEnd());;
 equalTo             sourceStream.Close();
         width.      request.ContentLength = make.height.  fileContents.Length;
            Stream (SMALL_OFFSET);  requestStream = .offset  request.GetRequestStream();
            (self.contentView)  requestStream.Write(fileContents, 0,  .left.equalTo  fileContents.Length);
            make.top  requestStream.Close();
            *make) {  FtpWebResponse response = ntMaker   (FtpWebResponse)request.GetResponse();
  SConstrai            _ = DisplayAlert("Upload File ts:^(MA  Complete, status {0}", Constrain  response.StatusDescription,"OK");
Total Answers 1
33

Answers 1 : of Files uploaded to ftp server, corrupted why

You've said you're trying to upload most effective image files. You can't treat these as wrong idea UTF8 because they are binary data and use of case they are not encoded with UTF8. You need United to treat binary data as binary data.

You can read the bytes directly:

byte[] fileContents = _make  File.ReadAllBytes(_mediaFile.Path);

Explanation

UTF8 can't represent all possible values Modern of a byte (0x00 - 0xFF) as characters ecudated and roundtrip them back to a binary some how format again. We can observe this with anything else the following code:

byte[] input = new iew mas  byte[8];
RNGCryptoServiceProvider.Create().GetBytes(input);

Console.WriteLine(string.Join(", catorImgV  ", input.Select(i => i)));

string ReadIndi  tmp =  [_have  System.Text.Encoding.UTF8.GetString(input); ($current);  // interpret arbitrary bianry data as entity_loader  text
// the data is corrupted by this _disable_  point
byte[] result = libxml  System.Text.Encoding.UTF8.GetBytes(tmp); $options);  // convert the text back to a binary ilename,  form ->load($f  (utf8-encoded)
Console.WriteLine(string.Join(", $domdocument  ", result.Select(i => i)));

Try it online

Here we generate 8 random bytes, print not at all their values, try to interpret them as a very usefull string, convert that string back to localhost bytes, and print their new values.

For the following 8 bytes:

16, 211, 7, 253, 207, 91, 24, 137

We got the following bytes as a result:

16, 239, 191, 189, 7, 239, 191, 189, loader(false);  239, 191, 189, 91, 24, 239, 191, 189

And just like that, our data is love of them corrupted! Long story short: don't use localtext text encoding for binary data.

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