(Node.js) Get FTP File Permissions

Node.js example showing how to retrieve file permissions (via FTP) for each file in a remote directory.

Install Chilkat for Node.js and Electron using npm at Chilkat npm packages for Node.js Chilkat npm packages for Electron on Windows, Linux, MacOSX, and ARM

var os = require('os');
if (os.platform() == 'win32') {  
    if (os.arch() == 'ia32') {
        var chilkat = require('@chilkat/ck-node21-win-ia32');
    } else {
        var chilkat = require('@chilkat/ck-node21-win64'); 
    }
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node21-arm');
    } else if (os.arch() == 'x86') {
        var chilkat = require('@chilkat/ck-node21-linux32');
    } else {
        var chilkat = require('@chilkat/ck-node21-linux64');
    }
} else if (os.platform() == 'darwin') {
    if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node21-mac-m1');
    } else {
        var chilkat = require('@chilkat/ck-node21-macosx');
    }
}

function chilkatExample() {

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    var ftp = new chilkat.Ftp2();

    // Set the various properties to establish the connection.
    ftp.Hostname = "ftp.example.com";
    ftp.Username = "login";
    ftp.Password = "password";

    // If SSL/TLS is required..
    // See http://www.cknotes.com/determining-ftp2-connection-settings/ 
    // for more information.
    ftp.AuthTls = true;
    ftp.PassiveUseHostAddr = true;

    // Connect to the FTP server:
    var success = ftp.ConnectOnly();
    if (success !== true) {
        console.log(ftp.LastErrorText);
        return;
    }

    // Authenticate with the FTP server.
    success = ftp.LoginAfterConnectOnly();
    if (success !== true) {
        console.log(ftp.LastErrorText);
        return;
    }

    // To get file permissions in UNIX format, disallow MSLD:
    ftp.AllowMlsd = false;

    // To get file and sub-directory information, simply
    // loop from 0 to ftp.GetDirCount() - 1
    var i = 0;
    var n = ftp.GetDirCount();
    if (n < 0) {
        console.log(ftp.LastErrorText);
        return;
    }

    // Show the type of permissions information that is available.
    // The two most common types are "mlsd" and "unix".  See the
    // online reference documentation for more information.
    if (n > 0) {
        console.log("The permissions format is: " + ftp.GetPermType(0));
    }

    while (i < n) {

        // Display the permissions and filename
        console.log(ftp.GetPermissions(i) + " " + ftp.GetFilename(i));

        i = i+1;
    }

    // Assuming MLSD was possible, let's see the file permissions in MLSD format:
    ftp.AllowMlsd = true;

    // Clear the directory cache so we're forced to re-fetch the directory listing:
    ftp.ClearDirCache();

    n = ftp.GetDirCount();
    if (n < 0) {
        console.log(ftp.LastErrorText);
        return;
    }

    // Show the type of permissions information that is available.
    // The two most common types are "mlsd" and "unix".  See the
    // online reference documentation for more information.
    if (n > 0) {
        console.log("----");
        console.log("The permissions format is: " + ftp.GetPermType(0));
    }

    i = 0;
    while (i < n) {

        // Display the permissions and filename
        console.log(ftp.GetPermissions(i) + " " + ftp.GetFilename(i));

        i = i+1;
    }

    success = ftp.Disconnect();

}

chilkatExample();