build: move e2e dependencies into e2e/go.mod

Several packages are only used while running the e2e suite. These
packages are less important to update, as the they can not influence the
final executable that is part of the Ceph-CSI container-image.

By moving these dependencies out of the main Ceph-CSI go.mod, it is
easier to identify if a reported CVE affects Ceph-CSI, or only the
testing (like most of the Kubernetes CVEs).

Signed-off-by: Niels de Vos <ndevos@ibm.com>

e2e/vendor/k8s.io/apiserver/pkg/authentication/group/authenticated_group_adder.go

@@ -0,0 +1,66 @@
+/*
+Copyright 2017 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package group
+
+import (
+	"net/http"
+
+	"k8s.io/apiserver/pkg/authentication/authenticator"
+	"k8s.io/apiserver/pkg/authentication/user"
+)
+
+// AuthenticatedGroupAdder adds system:authenticated group when appropriate
+type AuthenticatedGroupAdder struct {
+	// Authenticator is delegated to make the authentication decision
+	Authenticator authenticator.Request
+}
+
+// NewAuthenticatedGroupAdder wraps a request authenticator, and adds the system:authenticated group when appropriate.
+// Authentication must succeed, the user must not be system:anonymous, the groups system:authenticated or system:unauthenticated must
+// not be present
+func NewAuthenticatedGroupAdder(auth authenticator.Request) authenticator.Request {
+	return &AuthenticatedGroupAdder{auth}
+}
+
+func (g *AuthenticatedGroupAdder) AuthenticateRequest(req *http.Request) (*authenticator.Response, bool, error) {
+	r, ok, err := g.Authenticator.AuthenticateRequest(req)
+	if err != nil || !ok {
+		return nil, ok, err
+	}
+
+	if r.User.GetName() == user.Anonymous {
+		return r, true, nil
+	}
+	for _, group := range r.User.GetGroups() {
+		if group == user.AllAuthenticated || group == user.AllUnauthenticated {
+			return r, true, nil
+		}
+	}
+
+	newGroups := make([]string, 0, len(r.User.GetGroups())+1)
+	newGroups = append(newGroups, r.User.GetGroups()...)
+	newGroups = append(newGroups, user.AllAuthenticated)
+
+	ret := *r // shallow copy
+	ret.User = &user.DefaultInfo{
+		Name:   r.User.GetName(),
+		UID:    r.User.GetUID(),
+		Groups: newGroups,
+		Extra:  r.User.GetExtra(),
+	}
+	return &ret, true, nil
+}

e2e/vendor/k8s.io/apiserver/pkg/authentication/group/group_adder.go

@@ -0,0 +1,57 @@
+/*
+Copyright 2016 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package group
+
+import (
+	"net/http"
+
+	"k8s.io/apiserver/pkg/authentication/authenticator"
+	"k8s.io/apiserver/pkg/authentication/user"
+)
+
+// GroupAdder adds groups to an authenticated user.Info
+type GroupAdder struct {
+	// Authenticator is delegated to make the authentication decision
+	Authenticator authenticator.Request
+	// Groups are additional groups to add to the user.Info from a successful authentication
+	Groups []string
+}
+
+// NewGroupAdder wraps a request authenticator, and adds the specified groups to the returned user when authentication succeeds
+func NewGroupAdder(auth authenticator.Request, groups []string) authenticator.Request {
+	return &GroupAdder{auth, groups}
+}
+
+func (g *GroupAdder) AuthenticateRequest(req *http.Request) (*authenticator.Response, bool, error) {
+	r, ok, err := g.Authenticator.AuthenticateRequest(req)
+	if err != nil || !ok {
+		return nil, ok, err
+	}
+
+	newGroups := make([]string, 0, len(r.User.GetGroups())+len(g.Groups))
+	newGroups = append(newGroups, r.User.GetGroups()...)
+	newGroups = append(newGroups, g.Groups...)
+
+	ret := *r // shallow copy
+	ret.User = &user.DefaultInfo{
+		Name:   r.User.GetName(),
+		UID:    r.User.GetUID(),
+		Groups: newGroups,
+		Extra:  r.User.GetExtra(),
+	}
+	return &ret, true, nil
+}

e2e/vendor/k8s.io/apiserver/pkg/authentication/group/token_group_adder.go

@@ -0,0 +1,57 @@
+/*
+Copyright 2017 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package group
+
+import (
+	"context"
+
+	"k8s.io/apiserver/pkg/authentication/authenticator"
+	"k8s.io/apiserver/pkg/authentication/user"
+)
+
+// TokenGroupAdder adds groups to an authenticated user.Info
+type TokenGroupAdder struct {
+	// Authenticator is delegated to make the authentication decision
+	Authenticator authenticator.Token
+	// Groups are additional groups to add to the user.Info from a successful authentication
+	Groups []string
+}
+
+// NewTokenGroupAdder wraps a token authenticator, and adds the specified groups to the returned user when authentication succeeds
+func NewTokenGroupAdder(auth authenticator.Token, groups []string) authenticator.Token {
+	return &TokenGroupAdder{auth, groups}
+}
+
+func (g *TokenGroupAdder) AuthenticateToken(ctx context.Context, token string) (*authenticator.Response, bool, error) {
+	r, ok, err := g.Authenticator.AuthenticateToken(ctx, token)
+	if err != nil || !ok {
+		return nil, ok, err
+	}
+
+	newGroups := make([]string, 0, len(r.User.GetGroups())+len(g.Groups))
+	newGroups = append(newGroups, r.User.GetGroups()...)
+	newGroups = append(newGroups, g.Groups...)
+
+	ret := *r // shallow copy
+	ret.User = &user.DefaultInfo{
+		Name:   r.User.GetName(),
+		UID:    r.User.GetUID(),
+		Groups: newGroups,
+		Extra:  r.User.GetExtra(),
+	}
+	return &ret, true, nil
+}