Node.js

Check if an FTP Listing Entry is a Directory

Demonstrates the Chilkat Ftp2.GetIsDirectory method, which returns whether a cached directory-listing entry is a directory. The only argument is a zero-based index. An invalid index returns false.

Background: Distinguishing directories from files is the first thing most listing code needs — to render a folder tree, to decide whether to recurse, or to apply different handling. This reads the type from the cached listing, so it is a local lookup rather than a server query. Reliability depends on the server's listing format conveying the type, which the common Unix and MLSD formats do.

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function chilkatExample() {

    var success = false;

    //  Demonstrates the Ftp2.GetIsDirectory method, which returns whether a cached directory-listing
    //  entry is a directory.  The only argument is a zero-based index into the current listing.

    var ftp = new chilkat.Ftp2();

    ftp.Hostname = "ftp.example.com";
    ftp.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.Password = "myPassword";

    success = ftp.Connect();
    if (success == false) {
        console.log(ftp.LastErrorText);
        return;
    }

    success = ftp.ChangeRemoteDir("public_html");
    if (success == false) {
        console.log(ftp.LastErrorText);
        return;
    }

    //  GetDirCount retrieves the directory listing on the first call and returns the number of
    //  entries.  A negative return indicates failure.
    var n = ftp.GetDirCount();
    if (n < 0) {
        console.log(ftp.LastErrorText);
        return;
    }

    var i;
    for (i = 0; i <= n - 1; i++) {
        var name = ftp.GetFilename(i);
        if (ftp.GetIsDirectory(i)) {
            console.log("[DIR]  " + name);
        }
        else {
            console.log("       " + name);
        }

    }

    success = ftp.Disconnect();
    if (success == false) {
        console.log(ftp.LastErrorText);
        return;
    }


}

chilkatExample();