Dart

Set FTP Command and Directory-Listing Charsets

Demonstrates the CommandCharset and DirListingCharset properties, which control how non-ASCII text is encoded in commands (including remote paths and filenames) and how directory-listing responses are decoded.

Background: FTP predates Unicode, so servers vary in how they encode filenames; getting non-ASCII names right means matching the server's encoding on both sides. CommandCharset (default ANSI) governs outgoing paths and filenames, while DirListingCharset governs decoding of LIST/NLST/MLSD replies. Modern servers typically use UTF-8 — often negotiated automatically via OPTS UTF8 ON — but setting these explicitly resolves mojibake with servers that do not advertise it.

Chilkat Dart Downloads

Download Chilkat for Dart

Dart

import 'package:chilkat/chilkat.dart';

void main() {
  final ftp = CkFtp2();

  ftp.hostname = 'ftp.example.com';
  ftp.username = 'myFtpLogin';

  // CommandCharset is the encoding used for commands containing non-ASCII text, including remote
  // paths and filenames.  The default is ANSI; set utf-8 when the server uses UTF-8 filenames.
  ftp.commandCharset = 'utf-8';

  // DirListingCharset is used only to decode directory-listing responses (LIST, NLST, MLSD).  It
  // does not affect commands or paths.
  ftp.dirListingCharset = 'utf-8';

  // Normally you would not hard-code the password in source.  You should instead obtain it
  // from an interactive prompt, environment variable, or a secrets vault.
  ftp.password = 'myPassword';

  try {
    ftp.connect();
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // Non-ASCII remote paths and listings are now encoded/decoded as UTF-8.
  final String listing;
  try {
    listing = ftp.getTextDirListing('');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  print(listing);

  try {
    ftp.disconnect();
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }
}