Java

Control ASCII Download Line Endings (CrlfMode)

Demonstrates the CrlfMode property, which controls line-ending conversion when downloading in ASCII transfer mode: 0 leaves them as received, 1 converts to CRLF, 2 to LF, and 3 to CR.

Background: When you deliberately download text in ASCII mode, CrlfMode lets you force the saved file's line endings to a specific convention — CRLF for Windows tools, LF for Unix — regardless of what the server sends. It applies only in ASCII mode, so pair it with SetTypeAscii; in the recommended default binary mode, bytes are preserved verbatim and this setting has no effect. Reserve ASCII mode (and this property) for the rare case where line-ending normalization of text is actually wanted.

Chilkat Java Downloads

Download Chilkat for Java

Java

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    boolean success = false;

    CkFtp2 ftp = new CkFtp2();

    ftp.put_Hostname("ftp.example.com");
    ftp.put_Username("myFtpLogin");

    //  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.put_Password("myPassword");

    success = ftp.Connect();
    if (success == false) {
        System.out.println(ftp.lastErrorText());
        return;
        }

    //  CrlfMode controls line-ending conversion for ASCII-mode downloads:
    //    0 = leave line endings as received (default)
    //    1 = convert to CRLF
    //    2 = convert to LF
    //    3 = convert to CR
    //  Convert a downloaded text file's line endings to CRLF (useful when saving for Windows).
    ftp.put_CrlfMode(1);

    //  CrlfMode applies only in ASCII transfer mode.
    success = ftp.SetTypeAscii();
    if (success == false) {
        System.out.println(ftp.lastErrorText());
        return;
        }

    success = ftp.GetFile("public_html/readme.txt","qa_output/readme.txt");
    if (success == false) {
        System.out.println(ftp.lastErrorText());
        return;
        }

    System.out.println("Downloaded with CRLF line endings.");

    success = ftp.Disconnect();
    if (success == false) {
        System.out.println(ftp.lastErrorText());
        return;
        }
  }
}