The authentication flow is similar to that of OpenID, however the token is "opaque" to MinIO - it is simply sent to the plugin for verification. CAVEAT: There is no console UI integration for this method of authentication and it is intended primarily for machine authentication.

    //                                                                      ==============

    /**
     * Resolves login credentials using various authentication methods.
     * This method handles local user authentication, LDAP authentication,
     * and SSO authentication through configured authenticators.
     *
     * @param resolver the credential resolver to use
     */
    @Override

The `password` "flow" is one of the ways ("flows") defined in OAuth2, to handle security and authentication.

OAuth2 was designed so that the backend or API could be independent of the server that authenticates the user.

But in this case, the same **FastAPI** application will handle the API and the authentication.

So, let's review it from that simplified point of view:

import org.apache.maven.artifact.repository.ArtifactRepository;
import org.apache.maven.wagon.ResourceDoesNotExistException;
import org.apache.maven.wagon.TransferFailedException;
import org.apache.maven.wagon.authentication.AuthenticationInfo;
import org.apache.maven.wagon.proxy.ProxyInfo;

/**
 * Manages <a href="https://maven.apache.org/wagon">Wagon</a> related operations in Maven.
 *
 */
@Deprecated

import org.codelibs.fess.app.service.RequestHeaderService;
import org.codelibs.fess.app.service.WebAuthenticationService;
import org.codelibs.fess.crawler.client.CrawlerClientFactory;
import org.codelibs.fess.crawler.client.http.Authentication;
import org.codelibs.fess.crawler.client.http.HcHttpClient;
import org.codelibs.fess.helper.SystemHelper;
import org.codelibs.fess.mylasta.direction.FessConfig;
import org.codelibs.fess.mylasta.direction.FessProp;

        CurlRequest processedRequest = callProtectedRequest(curlHelper, request);

        assertNotNull(processedRequest);
        // The protected request method should process the request and add authentication
        // We verify that the method completed without errors
    }

    public void test_request_withoutAuth() {
        setupMockConfig("localhost:9200", "", "");

        curlHelper.init();

    /** Whether to send NTLM target name during authentication */
    protected boolean sendNTLMTargetName = true;
    private byte[] machineId;
    /** Username for guest authentication */
    protected String guestUsername = "GUEST";
    /** Password for guest authentication */
    protected String guestPassword = "";
    /** Whether to allow fallback to guest authentication */
    protected boolean allowGuestFallback = false;

                        }
                    }

                    Authentication authentication = new Authentication(server.getUsername(), server.getPassword());
                    authentication.setPrivateKey(server.getPrivateKey());
                    authentication.setPassphrase(server.getPassphrase());

                    repository.setAuthentication(authentication);
                } else {

import javax.security.auth.login.LoginException;

/**
 * Kerberos credentials management class that handles authentication through JAAS.
 */
public class KerberosCredentials {

    private Subject subject;

    /**
     * Creates KerberosCredentials using the default JAAS configuration.
     *
     * @throws LoginException if authentication fails
     */
    public KerberosCredentials() throws LoginException {

        final List<Authentication> basicAuthList = new ArrayList<>();
        for (final WebAuthentication webAuth : webAuthList) {
            basicAuthList.add(webAuth.getAuthentication());
        }
        paramMap.put(HcHttpClient.AUTHENTICATIONS_PROPERTY, basicAuthList.toArray(new Authentication[basicAuthList.size()]));

        // request header