Node.js

SFTP Auth Failure Reason (AuthenticatePwPk)

See more SFTP Examples

This example demonstrates how to determine the failure reason for the case where both a password and private key are required for authentication. If authentication fails, was it because of an invalid private key, or an invalid password? Node.js

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

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

    // Load a private key to be used for SSH authentication.
    var key = new chilkat.SshKey();
    key.Password = "key_password";

    success = key.FromOpenSshPrivateKey(key.LoadText("qa_data/my_private_key_file"));
    if (success == false) {
        console.log(key.LastErrorText);
        return;
    }

    var sftp = new chilkat.SFtp();

    success = sftp.Connect("sftp.example.com",22);
    if (success == false) {
        console.log(sftp.LastErrorText);
        return;
    }

    // Authenticate using both a password and private key.
    success = sftp.AuthenticatePwPk("myLogin","myPassword",key);
    if (success == true) {
        console.log("Authentication is successful!");
        return;
    }

    // If we get here, it means the authentication failed.
    // Examine the last JSON data..

    var json = new chilkat.JsonObject();
    sftp.GetLastJsonData(json);

    json.EmitCompact = false;

    // This is the JSON if the key is correct, but the password is incorrect:

    // {
    //   "public_key_type": "rsa",
    //   "partialAuthResult": "publickey success. continue to authenticate with password...",
    //   "authResult": "failed",
    //   "authFailReason": "Password is incorrect"
    // }

    // This is the JSON if the key is incorrect.  We won't know if the password is also incorrect until
    // the key is made correct so that authentication proceeds to check the password.

    // {
    //   "public_key_type": "rsa",
    //   "authResult": "failed",
    //   "authFailReason": "Key is incorrect"
    // }

    // To get the authResult anbd authFailReason:
    console.log("authResult: " + json.StringOf("authResult"));
    console.log("authFailReason: " + json.StringOf("authFailReason"));

}

chilkatExample();