React Native

Get an FTP Listing Entry's Permissions

Demonstrates the Chilkat Ftp2.GetPermissions method, which returns the permissions or status string of a cached directory-listing entry. The only argument is a zero-based index. The value is empty when the server provides no such metadata.

Background: FTP has no single standard permissions format, so what this returns depends on the server — commonly a Unix-style mode string like drwxr-xr-x, but potentially something else. Because the format varies, pair it with GetPermType to learn how to interpret the string before parsing it, rather than assuming a fixed layout.

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React Native

import { Ftp2 } from '@chilkat/react-native'

async function chilkatExample() {
  // Demonstrates the Ftp2.GetPermissions method, which returns the permissions or status string of
  // a cached directory-listing entry.  The only argument is a zero-based index.

  const ftp = new 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';

  try {
    await ftp.connectAsync();
  } catch {
    console.log(ftp.lastErrorText);
    return;
  }

  try {
    await ftp.changeRemoteDirAsync('public_html');
  } catch {
    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.
  const n = await ftp.getDirCountAsync();
  if (n < 0) {
    console.log(ftp.lastErrorText);
    return;
  }

  for (let i = 0; i < n; i++) {
    const name = await ftp.getFilenameAsync(i);

    // The permissions string is empty when the server provides no such metadata.  Use
    // GetPermType to learn how to interpret the string's format.
    const perms = await ftp.getPermissionsAsync(i);
    console.log(`${perms}  ${name}`);
  }

  try {
    await ftp.disconnectAsync();
  } catch {
    console.log(ftp.lastErrorText);
    return;
  }
}