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https://github.com/rocky-linux/peridot.git
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83 lines
2.5 KiB
Go
83 lines
2.5 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 rest
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import (
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"fmt"
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"net/http"
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"sync"
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"k8s.io/klog/v2"
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clientcmdapi "k8s.io/client-go/tools/clientcmd/api"
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)
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type AuthProvider interface {
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// WrapTransport allows the plugin to create a modified RoundTripper that
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// attaches authorization headers (or other info) to requests.
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WrapTransport(http.RoundTripper) http.RoundTripper
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// Login allows the plugin to initialize its configuration. It must not
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// require direct user interaction.
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Login() error
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}
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// Factory generates an AuthProvider plugin.
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// clusterAddress is the address of the current cluster.
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// config is the initial configuration for this plugin.
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// persister allows the plugin to save updated configuration.
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type Factory func(clusterAddress string, config map[string]string, persister AuthProviderConfigPersister) (AuthProvider, error)
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// AuthProviderConfigPersister allows a plugin to persist configuration info
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// for just itself.
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type AuthProviderConfigPersister interface {
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Persist(map[string]string) error
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}
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type noopPersister struct{}
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func (n *noopPersister) Persist(_ map[string]string) error {
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// no operation persister
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return nil
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}
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// All registered auth provider plugins.
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var pluginsLock sync.Mutex
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var plugins = make(map[string]Factory)
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func RegisterAuthProviderPlugin(name string, plugin Factory) error {
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pluginsLock.Lock()
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defer pluginsLock.Unlock()
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if _, found := plugins[name]; found {
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return fmt.Errorf("auth Provider Plugin %q was registered twice", name)
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}
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klog.V(4).Infof("Registered Auth Provider Plugin %q", name)
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plugins[name] = plugin
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return nil
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}
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func GetAuthProvider(clusterAddress string, apc *clientcmdapi.AuthProviderConfig, persister AuthProviderConfigPersister) (AuthProvider, error) {
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pluginsLock.Lock()
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defer pluginsLock.Unlock()
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p, ok := plugins[apc.Name]
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if !ok {
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return nil, fmt.Errorf("no Auth Provider found for name %q", apc.Name)
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}
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if persister == nil {
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persister = &noopPersister{}
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}
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return p(clusterAddress, apc.Config, persister)
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}
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