OAuth2 with scopes is the mechanism used by many big authentication providers, like Facebook, Google, GitHub, Microsoft, Twitter, etc. They use it to provide specific permissions to users and applications.

Every time you "log in with" Facebook, Google, GitHub, Microsoft, Twitter, that application is using OAuth2 with scopes.

	"github.com/stretchr/testify/assert"
	"golang.org/x/net/http2"

	"k8s.io/apiserver/pkg/authentication/authenticator"
	"k8s.io/apiserver/pkg/authentication/authenticatorfactory"
	"k8s.io/apiserver/pkg/authentication/request/anonymous"
	"k8s.io/apiserver/pkg/authentication/request/headerrequest"
	"k8s.io/apiserver/pkg/authentication/user"
	genericapirequest "k8s.io/apiserver/pkg/endpoints/request"
	"k8s.io/apiserver/pkg/features"

	// +optional
	Status TokenReviewStatus `json:"status,omitempty" protobuf:"bytes,3,opt,name=status"`
}

// TokenReviewSpec is a description of the token authentication request.
type TokenReviewSpec struct {
	// Token is the opaque bearer token.
	// +optional
	Token string `json:"token,omitempty" protobuf:"bytes,1,opt,name=token"`

| `minio_cluster_iam_plugin_authn_service_failed_requests_minute` | `counter` | When plugin authentication is configured, returns failed requests count in the last full minute                          |        |
| `minio_cluster_iam_plugin_authn_service_last_fail_seconds`      | `counter` | When plugin authentication is configured, returns time (in seconds) since the last failed request to the service         |        |

)

var (
	errSFTPPublicKeyBadFormat = errors.New("the public key provided could not be parsed")
	errSFTPUserHasNoPolicies  = errors.New("no policies present on this account")
	errSFTPLDAPNotEnabled     = errors.New("ldap authentication is not enabled")
)

// if the sftp parameter --trusted-user-ca-key is set, then
// the final form of the key file will be set as this variable.
var caPublicKey ssh.PublicKey

		{Group: "events.k8s.io", Version: "v1beta1"}:                 {Group: 17750, Version: 5},
		{Group: "authentication.k8s.io", Version: "v1"}:              {Group: 17700, Version: 15},
		{Group: "authentication.k8s.io", Version: "v1beta1"}:         {Group: 17700, Version: 9},
		{Group: "authentication.k8s.io", Version: "v1alpha1"}:        {Group: 17700, Version: 1},

	"k8s.io/apimachinery/pkg/util/waitgroup"
	auditinternal "k8s.io/apiserver/pkg/apis/audit"
	"k8s.io/apiserver/pkg/audit"
	"k8s.io/apiserver/pkg/audit/policy"
	"k8s.io/apiserver/pkg/authentication/authenticator"
	"k8s.io/apiserver/pkg/authentication/user"
	"k8s.io/apiserver/pkg/endpoints/request"
	"k8s.io/apiserver/pkg/server/healthz"
	"k8s.io/client-go/informers"
	"k8s.io/client-go/kubernetes/fake"
	"k8s.io/client-go/rest"

		// PROV_CERT. These are used for mTLS auth with XDS and CA. Certificates are long lived, we
		// always use the same certificate for control plane authentication and the short lived
		// certificates returned from the CA for workload authentication
		dir := mktemp()
		copyCerts(t, dir)

		sds := Setup(t, func(a AgentTest) AgentTest {
			a.CaAuthenticator.Set("", preProvisionID)

import org.codelibs.fess.crawler.client.CrawlerClientFactory;
import org.codelibs.fess.crawler.client.ftp.FtpAuthentication;
import org.codelibs.fess.crawler.client.ftp.FtpClient;
import org.codelibs.fess.crawler.client.http.Authentication;
import org.codelibs.fess.crawler.client.http.HcHttpClient;
import org.codelibs.fess.crawler.client.http.form.FormScheme;
import org.codelibs.fess.crawler.client.http.impl.AuthenticationImpl;

	"Not Found":                       http.StatusNotFound,
	"Method Not Allowed":              http.StatusMethodNotAllowed,
	"Not Acceptable":                  http.StatusNotAcceptable,
	"Proxy Authentication Required":   http.StatusProxyAuthRequired,
	"Request Timeout":                 http.StatusRequestTimeout,
	"Conflict":                        http.StatusConflict,
	"Gone":                            http.StatusGone,