Java Code Examples for org.keycloak.authentication.AuthenticationFlowContext#cancelLogin()

@Override
public void authenticate(AuthenticationFlowContext context) {

    UserModel user = context.getUser();
    if (user == null) {
        context.attempted();
        return;
    }

    String targetIdp = determineTargetIdp(user, context);
    if (targetIdp != null) {
        redirect(context, targetIdp);
        return;
    }

    boolean fallbackToAuthFlow = getConfigValueOrDefault(context.getAuthenticatorConfig(), FALLBACK_TO_AUTHFLOW_CONFIG_PROPERTY, "true", Boolean::parseBoolean);
    if (fallbackToAuthFlow) {
        context.attempted();
        return;
    }

    context.getEvent().error(Errors.UNKNOWN_IDENTITY_PROVIDER);
    context.failure(AuthenticationFlowError.IDENTITY_PROVIDER_NOT_FOUND);
    context.cancelLogin();
    context.resetFlow();
}
 

@Override
public void authenticate(AuthenticationFlowContext context) {

    AuthenticatorConfigModel configModel = context.getAuthenticatorConfig();

    String groupPath = configModel.getConfig().get(RequireGroupAuthenticatorFactory.GROUP);
    RealmModel realm = context.getRealm();
    UserModel user = context.getUser();

    if (!isMemberOfGroup(realm, user, groupPath)) {

        LOG.debugf("Access denied because of missing group membership. realm=%s username=%s groupPath=%s", realm.getName(), user.getUsername(), groupPath);
        context.cancelLogin();
        return;
    }

    context.success();
}
 

@Override
public void action(AuthenticationFlowContext context) {

    MultivaluedMap<String, String> formData = context.getHttpRequest().getDecodedFormParameters();
    String tenant = formData.getFirst("tenant");
    String group = formData.getFirst("group");

    LOG.infof("Retrieved tenant=%s group=%s", tenant, group);

    if (group == null || tenant == null || group.trim().isEmpty() || tenant.trim().isEmpty()) {

        context.cancelLogin();

        // reauthenticate...
        authenticate(context);
        return;
    }

    // Add selected information to authentication session
    context.getAuthenticationSession().setUserSessionNote("tenant", tenant);
    context.getAuthenticationSession().setUserSessionNote("group", group);

    context.success();
}
 

@Override
public void action(AuthenticationFlowContext context) {
    MultivaluedMap<String, String> formData = context.getHttpRequest().getDecodedFormParameters();
    if (formData.containsKey("cancel")) {
        context.cancelLogin();
        return;
    }
    if (!validateUsernameForm(context, formData)) {
        return;
    }
    context.success();
}
 

@Override
public void action(AuthenticationFlowContext context) {

    MultivaluedMap<String, String> formData = context.getHttpRequest().getDecodedFormParameters();
    if (formData.containsKey("cancel")) {
        context.cancelLogin();
        context.resetFlow();
        return;
    }
    if (!validatePasswordForm(context, formData)) {
        return;
    }

    context.success();
}
 

@Override
public void action(AuthenticationFlowContext context) {

    MultivaluedMap<String, String> formData = context.getHttpRequest().getDecodedFormParameters();
    int expectedSum = Integer.parseInt(context.getAuthenticationSession().getAuthNote(EXPECTED_SUM));
    int givenSum = Integer.parseInt(formData.getFirst("givenSum"));

    LOG.infof("Retrieved givenSum=%s expectedSum=%s", givenSum, expectedSum);

    context.getAuthenticationSession().removeAuthNote(EXPECTED_SUM);

    if (givenSum != expectedSum) {

        context.cancelLogin();

        // reauthenticate...
        authenticate(context);
        return;
    }

    context.success();
}
 

public void action(AuthenticationFlowContext context) {
    MultivaluedMap<String, String> params = context.getHttpRequest().getDecodedFormParameters();

    // receive error from navigator.credentials.get()
    String error = params.getFirst(WebAuthnConstants.ERROR);
    if (error != null && !error.isEmpty()) {
        throw new AuthenticationFlowException("exception raised from navigator.credentials.get() : " + error, AuthenticationFlowError.INVALID_USER);
    }

    String baseUrl = UriUtils.getOrigin(context.getUriInfo().getBaseUri());
    String rpId = context.getUriInfo().getBaseUri().getHost();

    Origin origin = new Origin(baseUrl);
    Challenge challenge = new DefaultChallenge(context.getAuthenticationSession().getAuthNote(WebAuthnConstants.AUTH_CHALLENGE_NOTE));
    ServerProperty server = new ServerProperty(origin, rpId, challenge, null);

    byte[] credentialId = Base64Url.decode(params.getFirst(WebAuthnConstants.CREDENTIAL_ID));
    byte[] clientDataJSON = Base64Url.decode(params.getFirst(WebAuthnConstants.CLIENT_DATA_JSON));
    byte[] authenticatorData = Base64Url.decode(params.getFirst(WebAuthnConstants.AUTHENTICATOR_DATA));
    byte[] signature = Base64Url.decode(params.getFirst(WebAuthnConstants.SIGNATURE));

    String userId = params.getFirst(WebAuthnConstants.USER_HANDLE);
    boolean isUVFlagChecked = true;
    logger.debugv("userId = {0}", userId);

    if (userId == null || userId.isEmpty()) {
        // in 2 Factor with Resident Key not supported Authenticator Scenario
        userId = context.getUser().getId();
        isUVFlagChecked = false;
    } else {
        if (context.getUser() != null) {
            // in 2 Factor with Resident Key supported Authenticator Scenario
            String firstAuthenticatedUserId = context.getUser().getId();
            logger.debugv("firstAuthenticatedUserId = {0}", firstAuthenticatedUserId);
            if (firstAuthenticatedUserId != null && !firstAuthenticatedUserId.equals(userId)) {
                throw new AuthenticationFlowException("First authenticated user is not the one authenticated by 2nd factor authenticator", AuthenticationFlowError.USER_CONFLICT);
            }
        } else {
            // in Passwordless with Resident Key supported Authenticator Scenario
            // NOP
        }
    }
    UserModel user = session.users().getUserById(userId, context.getRealm());
    WebAuthnAuthenticationContext authenticationContext = new WebAuthnAuthenticationContext(
            credentialId,
            clientDataJSON,
            authenticatorData,
            signature,
            server,
            isUVFlagChecked
    );

    WebAuthnCredentialModel cred = new WebAuthnCredentialModel();
    cred.setAuthenticationContext(authenticationContext);

    boolean result = false;
    try {
        result = session.userCredentialManager().isValid(context.getRealm(), user, cred);
    } catch (Exception e) {
        e.printStackTrace();
        throw new AuthenticationFlowException("unknown user authenticated by the authenticator", AuthenticationFlowError.UNKNOWN_USER);
    }
    if (result) {
        context.setUser(user);
        context.success();
    } else {
        context.cancelLogin();
    }
}
 

public void action(AuthenticationFlowContext context) {
    MultivaluedMap<String, String> params = context.getHttpRequest().getDecodedFormParameters();

    context.getEvent().detail(Details.CREDENTIAL_TYPE, getCredentialType());

    // receive error from navigator.credentials.get()
    String errorMsgFromWebAuthnApi = params.getFirst(WebAuthnConstants.ERROR);
    if (errorMsgFromWebAuthnApi != null && !errorMsgFromWebAuthnApi.isEmpty()) {
        setErrorResponse(context, WEBAUTHN_ERROR_API_GET, errorMsgFromWebAuthnApi);
        return;
    }

    String baseUrl = UriUtils.getOrigin(context.getUriInfo().getBaseUri());
    String rpId = getRpID(context);

    Origin origin = new Origin(baseUrl);
    Challenge challenge = new DefaultChallenge(context.getAuthenticationSession().getAuthNote(WebAuthnConstants.AUTH_CHALLENGE_NOTE));
    ServerProperty server = new ServerProperty(origin, rpId, challenge, null);

    byte[] credentialId = Base64Url.decode(params.getFirst(WebAuthnConstants.CREDENTIAL_ID));
    byte[] clientDataJSON = Base64Url.decode(params.getFirst(WebAuthnConstants.CLIENT_DATA_JSON));
    byte[] authenticatorData = Base64Url.decode(params.getFirst(WebAuthnConstants.AUTHENTICATOR_DATA));
    byte[] signature = Base64Url.decode(params.getFirst(WebAuthnConstants.SIGNATURE));

    final String userHandle = params.getFirst(WebAuthnConstants.USER_HANDLE);
    final String userId;
    // existing User Handle means that the authenticator used Resident Key supported public key credential
    if (userHandle == null || userHandle.isEmpty()) {
        // Resident Key not supported public key credential was used
        // so rely on the user that has already been authenticated
        userId = context.getUser().getId();
    } else {
        // decode using the same charset as it has been encoded (see: WebAuthnRegister.java)
        userId = new String(Base64Url.decode(userHandle), StandardCharsets.UTF_8);
        if (context.getUser() != null) {
            // Resident Key supported public key credential was used,
            // so need to confirm whether the already authenticated user is equals to one authenticated by the webauthn authenticator
            String firstAuthenticatedUserId = context.getUser().getId();
            if (firstAuthenticatedUserId != null && !firstAuthenticatedUserId.equals(userId)) {
                context.getEvent()
                        .detail("first_authenticated_user_id", firstAuthenticatedUserId)
                        .detail("web_authn_authenticator_authenticated_user_id", userId);
                setErrorResponse(context, WEBAUTHN_ERROR_DIFFERENT_USER, null);
                return;
            }
        } else {
            // Resident Key supported public key credential was used,
            // and the user has not yet been identified
            // so rely on the user authenticated by the webauthn authenticator
            // NOP
        }
    }

    boolean isUVFlagChecked = false;
    String userVerificationRequirement = getWebAuthnPolicy(context).getUserVerificationRequirement();
    if (WebAuthnConstants.OPTION_REQUIRED.equals(userVerificationRequirement)) isUVFlagChecked = true;

    UserModel user = session.users().getUserById(userId, context.getRealm());

    AuthenticationRequest authenticationRequest = new AuthenticationRequest(
            credentialId,
            authenticatorData,
            clientDataJSON,
            signature
            );

    AuthenticationParameters authenticationParameters = new AuthenticationParameters(
            server,
            null, // here authenticator cannot be fetched, set it afterwards in WebAuthnCredentialProvider.isValid()
            isUVFlagChecked
            );

    WebAuthnCredentialModelInput cred = new WebAuthnCredentialModelInput(getCredentialType());

    cred.setAuthenticationRequest(authenticationRequest);
    cred.setAuthenticationParameters(authenticationParameters);

    boolean result = false;
    try {
        result = session.userCredentialManager().isValid(context.getRealm(), user, cred);
    } catch (WebAuthnException wae) {
        setErrorResponse(context, WEBAUTHN_ERROR_AUTH_VERIFICATION, wae.getMessage());
        return;
    }
    String encodedCredentialID = Base64Url.encode(credentialId);
    if (result) {
        String isUVChecked = Boolean.toString(isUVFlagChecked);
        logger.debugv("WebAuthn Authentication successed. isUserVerificationChecked = {0}, PublicKeyCredentialID = {1}", isUVChecked, encodedCredentialID);
        context.setUser(user);
        context.getEvent()
            .detail("web_authn_authenticator_user_verification_checked", isUVChecked)
            .detail("public_key_credential_id", encodedCredentialID);
        context.success();
    } else {
        context.getEvent()
            .detail("web_authn_authenticated_user_id", userId)
            .detail("public_key_credential_id", encodedCredentialID);
        setErrorResponse(context, WEBAUTHN_ERROR_USER_NOT_FOUND, null);
        context.cancelLogin();
    }
}
 

@Override
public void action(AuthenticationFlowContext context) {
    MultivaluedMap<String, String> formData = context.getHttpRequest().getDecodedFormParameters();
    if (formData.containsKey("cancel")) {
        context.cancelLogin();
        return;
    }
    if (!validateForm(context, formData)) {
        return;
    }
    context.success();
}