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525 lines
21 KiB
Go
525 lines
21 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package rbac
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import (
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"context"
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"fmt"
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"strings"
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"testing"
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rbacv1 "k8s.io/api/rbac/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apiserver/pkg/authentication/user"
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"k8s.io/apiserver/pkg/authorization/authorizer"
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rbacv1helpers "k8s.io/kubernetes/pkg/apis/rbac/v1"
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rbacregistryvalidation "k8s.io/kubernetes/pkg/registry/rbac/validation"
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"k8s.io/kubernetes/plugin/pkg/auth/authorizer/rbac/bootstrappolicy"
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)
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func newRule(verbs, apiGroups, resources, nonResourceURLs string) rbacv1.PolicyRule {
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return rbacv1.PolicyRule{
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Verbs: strings.Split(verbs, ","),
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APIGroups: strings.Split(apiGroups, ","),
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Resources: strings.Split(resources, ","),
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NonResourceURLs: strings.Split(nonResourceURLs, ","),
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}
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}
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func newRole(name, namespace string, rules ...rbacv1.PolicyRule) *rbacv1.Role {
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return &rbacv1.Role{ObjectMeta: metav1.ObjectMeta{Namespace: namespace, Name: name}, Rules: rules}
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}
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func newClusterRole(name string, rules ...rbacv1.PolicyRule) *rbacv1.ClusterRole {
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return &rbacv1.ClusterRole{ObjectMeta: metav1.ObjectMeta{Name: name}, Rules: rules}
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}
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const (
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bindToRole uint16 = 0x0
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bindToClusterRole uint16 = 0x1
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)
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func newClusterRoleBinding(roleName string, subjects ...string) *rbacv1.ClusterRoleBinding {
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r := &rbacv1.ClusterRoleBinding{
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ObjectMeta: metav1.ObjectMeta{},
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RoleRef: rbacv1.RoleRef{
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APIGroup: rbacv1.GroupName,
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Kind: "ClusterRole", // ClusterRoleBindings can only refer to ClusterRole
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Name: roleName,
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},
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}
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r.Subjects = make([]rbacv1.Subject, len(subjects))
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for i, subject := range subjects {
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split := strings.SplitN(subject, ":", 2)
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r.Subjects[i].Kind, r.Subjects[i].Name = split[0], split[1]
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switch r.Subjects[i].Kind {
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case rbacv1.ServiceAccountKind:
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r.Subjects[i].APIGroup = ""
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case rbacv1.UserKind, rbacv1.GroupKind:
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r.Subjects[i].APIGroup = rbacv1.GroupName
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default:
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panic(fmt.Errorf("invalid kind %s", r.Subjects[i].Kind))
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}
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}
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return r
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}
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func newRoleBinding(namespace, roleName string, bindType uint16, subjects ...string) *rbacv1.RoleBinding {
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r := &rbacv1.RoleBinding{ObjectMeta: metav1.ObjectMeta{Namespace: namespace}}
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switch bindType {
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case bindToRole:
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r.RoleRef = rbacv1.RoleRef{APIGroup: rbacv1.GroupName, Kind: "Role", Name: roleName}
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case bindToClusterRole:
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r.RoleRef = rbacv1.RoleRef{APIGroup: rbacv1.GroupName, Kind: "ClusterRole", Name: roleName}
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}
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r.Subjects = make([]rbacv1.Subject, len(subjects))
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for i, subject := range subjects {
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split := strings.SplitN(subject, ":", 2)
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r.Subjects[i].Kind, r.Subjects[i].Name = split[0], split[1]
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switch r.Subjects[i].Kind {
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case rbacv1.ServiceAccountKind:
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r.Subjects[i].APIGroup = ""
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case rbacv1.UserKind, rbacv1.GroupKind:
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r.Subjects[i].APIGroup = rbacv1.GroupName
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default:
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panic(fmt.Errorf("invalid kind %s", r.Subjects[i].Kind))
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}
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}
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return r
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}
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type defaultAttributes struct {
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user string
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groups string
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verb string
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resource string
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subresource string
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namespace string
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apiGroup string
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}
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func (d *defaultAttributes) String() string {
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return fmt.Sprintf("user=(%s), groups=(%s), verb=(%s), resource=(%s), namespace=(%s), apiGroup=(%s)",
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d.user, strings.Split(d.groups, ","), d.verb, d.resource, d.namespace, d.apiGroup)
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}
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func (d *defaultAttributes) GetUser() user.Info {
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return &user.DefaultInfo{Name: d.user, Groups: strings.Split(d.groups, ",")}
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}
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func (d *defaultAttributes) GetVerb() string { return d.verb }
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func (d *defaultAttributes) IsReadOnly() bool { return d.verb == "get" || d.verb == "watch" }
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func (d *defaultAttributes) GetNamespace() string { return d.namespace }
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func (d *defaultAttributes) GetResource() string { return d.resource }
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func (d *defaultAttributes) GetSubresource() string { return d.subresource }
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func (d *defaultAttributes) GetName() string { return "" }
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func (d *defaultAttributes) GetAPIGroup() string { return d.apiGroup }
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func (d *defaultAttributes) GetAPIVersion() string { return "" }
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func (d *defaultAttributes) IsResourceRequest() bool { return true }
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func (d *defaultAttributes) GetPath() string { return "" }
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func TestAuthorizer(t *testing.T) {
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tests := []struct {
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roles []*rbacv1.Role
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roleBindings []*rbacv1.RoleBinding
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clusterRoles []*rbacv1.ClusterRole
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clusterRoleBindings []*rbacv1.ClusterRoleBinding
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shouldPass []authorizer.Attributes
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shouldFail []authorizer.Attributes
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}{
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{
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clusterRoles: []*rbacv1.ClusterRole{
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newClusterRole("admin", newRule("*", "*", "*", "*")),
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},
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roleBindings: []*rbacv1.RoleBinding{
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newRoleBinding("ns1", "admin", bindToClusterRole, "User:admin", "Group:admins"),
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},
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shouldPass: []authorizer.Attributes{
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&defaultAttributes{"admin", "", "get", "Pods", "", "ns1", ""},
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&defaultAttributes{"admin", "", "watch", "Pods", "", "ns1", ""},
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&defaultAttributes{"admin", "group1", "watch", "Foobar", "", "ns1", ""},
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&defaultAttributes{"joe", "admins", "watch", "Foobar", "", "ns1", ""},
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&defaultAttributes{"joe", "group1,admins", "watch", "Foobar", "", "ns1", ""},
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},
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shouldFail: []authorizer.Attributes{
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&defaultAttributes{"admin", "", "GET", "Pods", "", "ns2", ""},
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&defaultAttributes{"admin", "", "GET", "Nodes", "", "", ""},
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&defaultAttributes{"admin", "admins", "GET", "Pods", "", "ns2", ""},
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&defaultAttributes{"admin", "admins", "GET", "Nodes", "", "", ""},
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},
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},
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{
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// Non-resource-url tests
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clusterRoles: []*rbacv1.ClusterRole{
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newClusterRole("non-resource-url-getter", newRule("get", "", "", "/apis")),
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newClusterRole("non-resource-url", newRule("*", "", "", "/apis")),
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newClusterRole("non-resource-url-prefix", newRule("get", "", "", "/apis/*")),
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},
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clusterRoleBindings: []*rbacv1.ClusterRoleBinding{
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newClusterRoleBinding("non-resource-url-getter", "User:foo", "Group:bar"),
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newClusterRoleBinding("non-resource-url", "User:admin", "Group:admin"),
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newClusterRoleBinding("non-resource-url-prefix", "User:prefixed", "Group:prefixed"),
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},
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shouldPass: []authorizer.Attributes{
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authorizer.AttributesRecord{User: &user.DefaultInfo{Name: "foo"}, Verb: "get", Path: "/apis"},
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authorizer.AttributesRecord{User: &user.DefaultInfo{Groups: []string{"bar"}}, Verb: "get", Path: "/apis"},
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authorizer.AttributesRecord{User: &user.DefaultInfo{Name: "admin"}, Verb: "get", Path: "/apis"},
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authorizer.AttributesRecord{User: &user.DefaultInfo{Groups: []string{"admin"}}, Verb: "get", Path: "/apis"},
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authorizer.AttributesRecord{User: &user.DefaultInfo{Name: "admin"}, Verb: "watch", Path: "/apis"},
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authorizer.AttributesRecord{User: &user.DefaultInfo{Groups: []string{"admin"}}, Verb: "watch", Path: "/apis"},
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authorizer.AttributesRecord{User: &user.DefaultInfo{Name: "prefixed"}, Verb: "get", Path: "/apis/v1"},
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authorizer.AttributesRecord{User: &user.DefaultInfo{Groups: []string{"prefixed"}}, Verb: "get", Path: "/apis/v1"},
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authorizer.AttributesRecord{User: &user.DefaultInfo{Name: "prefixed"}, Verb: "get", Path: "/apis/v1/foobar"},
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authorizer.AttributesRecord{User: &user.DefaultInfo{Groups: []string{"prefixed"}}, Verb: "get", Path: "/apis/v1/foorbar"},
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},
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shouldFail: []authorizer.Attributes{
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// wrong verb
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authorizer.AttributesRecord{User: &user.DefaultInfo{Name: "foo"}, Verb: "watch", Path: "/apis"},
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authorizer.AttributesRecord{User: &user.DefaultInfo{Groups: []string{"bar"}}, Verb: "watch", Path: "/apis"},
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// wrong path
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authorizer.AttributesRecord{User: &user.DefaultInfo{Name: "foo"}, Verb: "get", Path: "/api/v1"},
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authorizer.AttributesRecord{User: &user.DefaultInfo{Groups: []string{"bar"}}, Verb: "get", Path: "/api/v1"},
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authorizer.AttributesRecord{User: &user.DefaultInfo{Name: "admin"}, Verb: "get", Path: "/api/v1"},
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authorizer.AttributesRecord{User: &user.DefaultInfo{Groups: []string{"admin"}}, Verb: "get", Path: "/api/v1"},
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// not covered by prefix
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authorizer.AttributesRecord{User: &user.DefaultInfo{Name: "prefixed"}, Verb: "get", Path: "/api/v1"},
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authorizer.AttributesRecord{User: &user.DefaultInfo{Groups: []string{"prefixed"}}, Verb: "get", Path: "/api/v1"},
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},
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},
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{
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// test subresource resolution
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clusterRoles: []*rbacv1.ClusterRole{
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newClusterRole("admin", newRule("*", "*", "pods", "*")),
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},
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roleBindings: []*rbacv1.RoleBinding{
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newRoleBinding("ns1", "admin", bindToClusterRole, "User:admin", "Group:admins"),
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},
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shouldPass: []authorizer.Attributes{
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&defaultAttributes{"admin", "", "get", "pods", "", "ns1", ""},
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},
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shouldFail: []authorizer.Attributes{
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&defaultAttributes{"admin", "", "get", "pods", "status", "ns1", ""},
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},
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},
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{
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// test subresource resolution
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clusterRoles: []*rbacv1.ClusterRole{
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newClusterRole("admin",
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newRule("*", "*", "pods/status", "*"),
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newRule("*", "*", "*/scale", "*"),
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),
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},
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roleBindings: []*rbacv1.RoleBinding{
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newRoleBinding("ns1", "admin", bindToClusterRole, "User:admin", "Group:admins"),
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},
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shouldPass: []authorizer.Attributes{
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&defaultAttributes{"admin", "", "get", "pods", "status", "ns1", ""},
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&defaultAttributes{"admin", "", "get", "pods", "scale", "ns1", ""},
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&defaultAttributes{"admin", "", "get", "deployments", "scale", "ns1", ""},
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&defaultAttributes{"admin", "", "get", "anything", "scale", "ns1", ""},
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},
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shouldFail: []authorizer.Attributes{
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&defaultAttributes{"admin", "", "get", "pods", "", "ns1", ""},
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},
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},
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}
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for i, tt := range tests {
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ruleResolver, _ := rbacregistryvalidation.NewTestRuleResolver(tt.roles, tt.roleBindings, tt.clusterRoles, tt.clusterRoleBindings)
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a := RBACAuthorizer{ruleResolver}
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for _, attr := range tt.shouldPass {
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if decision, _, _ := a.Authorize(context.Background(), attr); decision != authorizer.DecisionAllow {
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t.Errorf("case %d: incorrectly restricted %s", i, attr)
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}
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}
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for _, attr := range tt.shouldFail {
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if decision, _, _ := a.Authorize(context.Background(), attr); decision == authorizer.DecisionAllow {
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t.Errorf("case %d: incorrectly passed %s", i, attr)
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}
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}
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}
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}
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func TestRuleMatches(t *testing.T) {
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tests := []struct {
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name string
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rule rbacv1.PolicyRule
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requestsToExpected map[authorizer.AttributesRecord]bool
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}{
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{
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name: "star verb, exact match other",
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rule: rbacv1helpers.NewRule("*").Groups("group1").Resources("resource1").RuleOrDie(),
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requestsToExpected: map[authorizer.AttributesRecord]bool{
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resourceRequest("verb1").Group("group1").Resource("resource1").New(): true,
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resourceRequest("verb1").Group("group2").Resource("resource1").New(): false,
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resourceRequest("verb1").Group("group1").Resource("resource2").New(): false,
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resourceRequest("verb1").Group("group2").Resource("resource2").New(): false,
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resourceRequest("verb2").Group("group1").Resource("resource1").New(): true,
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resourceRequest("verb2").Group("group2").Resource("resource1").New(): false,
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resourceRequest("verb2").Group("group1").Resource("resource2").New(): false,
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resourceRequest("verb2").Group("group2").Resource("resource2").New(): false,
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},
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},
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{
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name: "star group, exact match other",
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rule: rbacv1helpers.NewRule("verb1").Groups("*").Resources("resource1").RuleOrDie(),
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requestsToExpected: map[authorizer.AttributesRecord]bool{
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resourceRequest("verb1").Group("group1").Resource("resource1").New(): true,
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resourceRequest("verb1").Group("group2").Resource("resource1").New(): true,
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resourceRequest("verb1").Group("group1").Resource("resource2").New(): false,
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resourceRequest("verb1").Group("group2").Resource("resource2").New(): false,
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resourceRequest("verb2").Group("group1").Resource("resource1").New(): false,
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resourceRequest("verb2").Group("group2").Resource("resource1").New(): false,
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resourceRequest("verb2").Group("group1").Resource("resource2").New(): false,
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resourceRequest("verb2").Group("group2").Resource("resource2").New(): false,
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},
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},
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{
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name: "star resource, exact match other",
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rule: rbacv1helpers.NewRule("verb1").Groups("group1").Resources("*").RuleOrDie(),
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requestsToExpected: map[authorizer.AttributesRecord]bool{
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resourceRequest("verb1").Group("group1").Resource("resource1").New(): true,
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resourceRequest("verb1").Group("group2").Resource("resource1").New(): false,
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resourceRequest("verb1").Group("group1").Resource("resource2").New(): true,
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resourceRequest("verb1").Group("group2").Resource("resource2").New(): false,
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resourceRequest("verb2").Group("group1").Resource("resource1").New(): false,
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resourceRequest("verb2").Group("group2").Resource("resource1").New(): false,
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resourceRequest("verb2").Group("group1").Resource("resource2").New(): false,
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resourceRequest("verb2").Group("group2").Resource("resource2").New(): false,
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},
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},
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{
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name: "tuple expansion",
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rule: rbacv1helpers.NewRule("verb1", "verb2").Groups("group1", "group2").Resources("resource1", "resource2").RuleOrDie(),
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requestsToExpected: map[authorizer.AttributesRecord]bool{
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resourceRequest("verb1").Group("group1").Resource("resource1").New(): true,
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resourceRequest("verb1").Group("group2").Resource("resource1").New(): true,
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resourceRequest("verb1").Group("group1").Resource("resource2").New(): true,
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resourceRequest("verb1").Group("group2").Resource("resource2").New(): true,
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resourceRequest("verb2").Group("group1").Resource("resource1").New(): true,
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resourceRequest("verb2").Group("group2").Resource("resource1").New(): true,
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resourceRequest("verb2").Group("group1").Resource("resource2").New(): true,
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resourceRequest("verb2").Group("group2").Resource("resource2").New(): true,
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},
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},
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{
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name: "subresource expansion",
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rule: rbacv1helpers.NewRule("*").Groups("*").Resources("resource1/subresource1").RuleOrDie(),
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requestsToExpected: map[authorizer.AttributesRecord]bool{
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resourceRequest("verb1").Group("group1").Resource("resource1").Subresource("subresource1").New(): true,
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resourceRequest("verb1").Group("group2").Resource("resource1").Subresource("subresource2").New(): false,
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resourceRequest("verb1").Group("group1").Resource("resource2").Subresource("subresource1").New(): false,
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resourceRequest("verb1").Group("group2").Resource("resource2").Subresource("subresource1").New(): false,
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resourceRequest("verb2").Group("group1").Resource("resource1").Subresource("subresource1").New(): true,
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resourceRequest("verb2").Group("group2").Resource("resource1").Subresource("subresource2").New(): false,
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resourceRequest("verb2").Group("group1").Resource("resource2").Subresource("subresource1").New(): false,
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resourceRequest("verb2").Group("group2").Resource("resource2").Subresource("subresource1").New(): false,
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},
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},
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{
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name: "star nonresource, exact match other",
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rule: rbacv1helpers.NewRule("verb1").URLs("*").RuleOrDie(),
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requestsToExpected: map[authorizer.AttributesRecord]bool{
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nonresourceRequest("verb1").URL("/foo").New(): true,
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nonresourceRequest("verb1").URL("/foo/bar").New(): true,
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nonresourceRequest("verb1").URL("/foo/baz").New(): true,
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nonresourceRequest("verb1").URL("/foo/bar/one").New(): true,
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nonresourceRequest("verb1").URL("/foo/baz/one").New(): true,
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nonresourceRequest("verb2").URL("/foo").New(): false,
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nonresourceRequest("verb2").URL("/foo/bar").New(): false,
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nonresourceRequest("verb2").URL("/foo/baz").New(): false,
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nonresourceRequest("verb2").URL("/foo/bar/one").New(): false,
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nonresourceRequest("verb2").URL("/foo/baz/one").New(): false,
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},
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},
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{
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name: "star nonresource subpath",
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rule: rbacv1helpers.NewRule("verb1").URLs("/foo/*").RuleOrDie(),
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requestsToExpected: map[authorizer.AttributesRecord]bool{
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nonresourceRequest("verb1").URL("/foo").New(): false,
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nonresourceRequest("verb1").URL("/foo/bar").New(): true,
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nonresourceRequest("verb1").URL("/foo/baz").New(): true,
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nonresourceRequest("verb1").URL("/foo/bar/one").New(): true,
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nonresourceRequest("verb1").URL("/foo/baz/one").New(): true,
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nonresourceRequest("verb1").URL("/notfoo").New(): false,
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nonresourceRequest("verb1").URL("/notfoo/bar").New(): false,
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nonresourceRequest("verb1").URL("/notfoo/baz").New(): false,
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nonresourceRequest("verb1").URL("/notfoo/bar/one").New(): false,
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nonresourceRequest("verb1").URL("/notfoo/baz/one").New(): false,
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},
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},
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{
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name: "star verb, exact nonresource",
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rule: rbacv1helpers.NewRule("*").URLs("/foo", "/foo/bar/one").RuleOrDie(),
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requestsToExpected: map[authorizer.AttributesRecord]bool{
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nonresourceRequest("verb1").URL("/foo").New(): true,
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nonresourceRequest("verb1").URL("/foo/bar").New(): false,
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nonresourceRequest("verb1").URL("/foo/baz").New(): false,
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nonresourceRequest("verb1").URL("/foo/bar/one").New(): true,
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nonresourceRequest("verb1").URL("/foo/baz/one").New(): false,
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nonresourceRequest("verb2").URL("/foo").New(): true,
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nonresourceRequest("verb2").URL("/foo/bar").New(): false,
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nonresourceRequest("verb2").URL("/foo/baz").New(): false,
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nonresourceRequest("verb2").URL("/foo/bar/one").New(): true,
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nonresourceRequest("verb2").URL("/foo/baz/one").New(): false,
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},
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},
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}
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for _, tc := range tests {
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for request, expected := range tc.requestsToExpected {
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if e, a := expected, RuleAllows(request, &tc.rule); e != a {
|
|
t.Errorf("%q: expected %v, got %v for %v", tc.name, e, a, request)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
type requestAttributeBuilder struct {
|
|
request authorizer.AttributesRecord
|
|
}
|
|
|
|
func resourceRequest(verb string) *requestAttributeBuilder {
|
|
return &requestAttributeBuilder{
|
|
request: authorizer.AttributesRecord{ResourceRequest: true, Verb: verb},
|
|
}
|
|
}
|
|
|
|
func nonresourceRequest(verb string) *requestAttributeBuilder {
|
|
return &requestAttributeBuilder{
|
|
request: authorizer.AttributesRecord{ResourceRequest: false, Verb: verb},
|
|
}
|
|
}
|
|
|
|
func (r *requestAttributeBuilder) Group(group string) *requestAttributeBuilder {
|
|
r.request.APIGroup = group
|
|
return r
|
|
}
|
|
|
|
func (r *requestAttributeBuilder) Resource(resource string) *requestAttributeBuilder {
|
|
r.request.Resource = resource
|
|
return r
|
|
}
|
|
|
|
func (r *requestAttributeBuilder) Subresource(subresource string) *requestAttributeBuilder {
|
|
r.request.Subresource = subresource
|
|
return r
|
|
}
|
|
|
|
func (r *requestAttributeBuilder) Name(name string) *requestAttributeBuilder {
|
|
r.request.Name = name
|
|
return r
|
|
}
|
|
|
|
func (r *requestAttributeBuilder) URL(url string) *requestAttributeBuilder {
|
|
r.request.Path = url
|
|
return r
|
|
}
|
|
|
|
func (r *requestAttributeBuilder) New() authorizer.AttributesRecord {
|
|
return r.request
|
|
}
|
|
|
|
func BenchmarkAuthorize(b *testing.B) {
|
|
bootstrapRoles := []rbacv1.ClusterRole{}
|
|
bootstrapRoles = append(bootstrapRoles, bootstrappolicy.ControllerRoles()...)
|
|
bootstrapRoles = append(bootstrapRoles, bootstrappolicy.ClusterRoles()...)
|
|
|
|
bootstrapBindings := []rbacv1.ClusterRoleBinding{}
|
|
bootstrapBindings = append(bootstrapBindings, bootstrappolicy.ClusterRoleBindings()...)
|
|
bootstrapBindings = append(bootstrapBindings, bootstrappolicy.ControllerRoleBindings()...)
|
|
|
|
clusterRoles := []*rbacv1.ClusterRole{}
|
|
for i := range bootstrapRoles {
|
|
clusterRoles = append(clusterRoles, &bootstrapRoles[i])
|
|
}
|
|
clusterRoleBindings := []*rbacv1.ClusterRoleBinding{}
|
|
for i := range bootstrapBindings {
|
|
clusterRoleBindings = append(clusterRoleBindings, &bootstrapBindings[i])
|
|
}
|
|
|
|
_, resolver := rbacregistryvalidation.NewTestRuleResolver(nil, nil, clusterRoles, clusterRoleBindings)
|
|
|
|
authz := New(resolver, resolver, resolver, resolver)
|
|
|
|
nodeUser := &user.DefaultInfo{Name: "system:node:node1", Groups: []string{"system:nodes", "system:authenticated"}}
|
|
requests := []struct {
|
|
name string
|
|
attrs authorizer.Attributes
|
|
}{
|
|
{
|
|
"allow list pods",
|
|
authorizer.AttributesRecord{
|
|
ResourceRequest: true,
|
|
User: nodeUser,
|
|
Verb: "list",
|
|
Resource: "pods",
|
|
Subresource: "",
|
|
Name: "",
|
|
Namespace: "",
|
|
APIGroup: "",
|
|
APIVersion: "v1",
|
|
},
|
|
},
|
|
{
|
|
"allow update pods/status",
|
|
authorizer.AttributesRecord{
|
|
ResourceRequest: true,
|
|
User: nodeUser,
|
|
Verb: "update",
|
|
Resource: "pods",
|
|
Subresource: "status",
|
|
Name: "mypods",
|
|
Namespace: "myns",
|
|
APIGroup: "",
|
|
APIVersion: "v1",
|
|
},
|
|
},
|
|
{
|
|
"forbid educate dolphins",
|
|
authorizer.AttributesRecord{
|
|
ResourceRequest: true,
|
|
User: nodeUser,
|
|
Verb: "educate",
|
|
Resource: "dolphins",
|
|
Subresource: "",
|
|
Name: "",
|
|
Namespace: "",
|
|
APIGroup: "",
|
|
APIVersion: "v1",
|
|
},
|
|
},
|
|
}
|
|
|
|
b.ResetTimer()
|
|
for _, request := range requests {
|
|
b.Run(request.name, func(b *testing.B) {
|
|
for i := 0; i < b.N; i++ {
|
|
authz.Authorize(context.Background(), request.attrs)
|
|
}
|
|
})
|
|
}
|
|
}
|