mirror of
https://github.com/ceph/ceph-csi.git
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aa698bc3e1
Kubernetes v1.22 version has been released and this update ceph csi dependencies to use the same version. Signed-off-by: Humble Chirammal <hchiramm@redhat.com>
160 lines
4.8 KiB
Go
160 lines
4.8 KiB
Go
/*
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Copyright 2014 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 authorizer
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import (
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"context"
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"net/http"
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"k8s.io/apiserver/pkg/authentication/user"
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)
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// Attributes is an interface used by an Authorizer to get information about a request
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// that is used to make an authorization decision.
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type Attributes interface {
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// GetUser returns the user.Info object to authorize
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GetUser() user.Info
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// GetVerb returns the kube verb associated with API requests (this includes get, list, watch, create, update, patch, delete, deletecollection, and proxy),
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// or the lowercased HTTP verb associated with non-API requests (this includes get, put, post, patch, and delete)
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GetVerb() string
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// When IsReadOnly() == true, the request has no side effects, other than
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// caching, logging, and other incidentals.
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IsReadOnly() bool
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// The namespace of the object, if a request is for a REST object.
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GetNamespace() string
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// The kind of object, if a request is for a REST object.
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GetResource() string
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// GetSubresource returns the subresource being requested, if present
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GetSubresource() string
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// GetName returns the name of the object as parsed off the request. This will not be present for all request types, but
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// will be present for: get, update, delete
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GetName() string
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// The group of the resource, if a request is for a REST object.
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GetAPIGroup() string
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// GetAPIVersion returns the version of the group requested, if a request is for a REST object.
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GetAPIVersion() string
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// IsResourceRequest returns true for requests to API resources, like /api/v1/nodes,
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// and false for non-resource endpoints like /api, /healthz
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IsResourceRequest() bool
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// GetPath returns the path of the request
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GetPath() string
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}
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// Authorizer makes an authorization decision based on information gained by making
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// zero or more calls to methods of the Attributes interface. It returns nil when an action is
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// authorized, otherwise it returns an error.
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type Authorizer interface {
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Authorize(ctx context.Context, a Attributes) (authorized Decision, reason string, err error)
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}
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type AuthorizerFunc func(ctx context.Context, a Attributes) (Decision, string, error)
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func (f AuthorizerFunc) Authorize(ctx context.Context, a Attributes) (Decision, string, error) {
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return f(ctx, a)
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}
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// RuleResolver provides a mechanism for resolving the list of rules that apply to a given user within a namespace.
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type RuleResolver interface {
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// RulesFor get the list of cluster wide rules, the list of rules in the specific namespace, incomplete status and errors.
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RulesFor(user user.Info, namespace string) ([]ResourceRuleInfo, []NonResourceRuleInfo, bool, error)
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}
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// RequestAttributesGetter provides a function that extracts Attributes from an http.Request
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type RequestAttributesGetter interface {
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GetRequestAttributes(user.Info, *http.Request) Attributes
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}
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// AttributesRecord implements Attributes interface.
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type AttributesRecord struct {
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User user.Info
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Verb string
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Namespace string
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APIGroup string
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APIVersion string
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Resource string
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Subresource string
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Name string
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ResourceRequest bool
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Path string
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}
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func (a AttributesRecord) GetUser() user.Info {
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return a.User
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}
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func (a AttributesRecord) GetVerb() string {
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return a.Verb
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}
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func (a AttributesRecord) IsReadOnly() bool {
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return a.Verb == "get" || a.Verb == "list" || a.Verb == "watch"
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}
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func (a AttributesRecord) GetNamespace() string {
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return a.Namespace
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}
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func (a AttributesRecord) GetResource() string {
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return a.Resource
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}
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func (a AttributesRecord) GetSubresource() string {
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return a.Subresource
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}
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func (a AttributesRecord) GetName() string {
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return a.Name
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}
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func (a AttributesRecord) GetAPIGroup() string {
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return a.APIGroup
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}
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func (a AttributesRecord) GetAPIVersion() string {
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return a.APIVersion
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}
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func (a AttributesRecord) IsResourceRequest() bool {
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return a.ResourceRequest
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}
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func (a AttributesRecord) GetPath() string {
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return a.Path
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}
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type Decision int
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const (
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// DecisionDeny means that an authorizer decided to deny the action.
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DecisionDeny Decision = iota
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// DecisionAllow means that an authorizer decided to allow the action.
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DecisionAllow
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// DecisionNoOpionion means that an authorizer has no opinion on whether
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// to allow or deny an action.
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DecisionNoOpinion
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)
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