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85 lines
2.6 KiB
Go
85 lines
2.6 KiB
Go
/*
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Copyright 2020 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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"net/url"
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clientauthenticationapi "k8s.io/client-go/pkg/apis/clientauthentication"
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)
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// This file contains Config logic related to exec credential plugins.
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// ConfigToExecCluster creates a clientauthenticationapi.Cluster with the corresponding fields from
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// the provided Config.
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func ConfigToExecCluster(config *Config) (*clientauthenticationapi.Cluster, error) {
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caData, err := dataFromSliceOrFile(config.CAData, config.CAFile)
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if err != nil {
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return nil, fmt.Errorf("failed to load CA bundle for execProvider: %v", err)
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}
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var proxyURL string
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if config.Proxy != nil {
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req, err := http.NewRequest("", config.Host, nil)
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if err != nil {
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return nil, fmt.Errorf("failed to create proxy URL request for execProvider: %w", err)
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}
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url, err := config.Proxy(req)
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if err != nil {
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return nil, fmt.Errorf("failed to get proxy URL for execProvider: %w", err)
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}
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if url != nil {
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proxyURL = url.String()
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}
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}
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return &clientauthenticationapi.Cluster{
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Server: config.Host,
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TLSServerName: config.ServerName,
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InsecureSkipTLSVerify: config.Insecure,
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CertificateAuthorityData: caData,
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ProxyURL: proxyURL,
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Config: config.ExecProvider.Config,
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}, nil
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}
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// ExecClusterToConfig creates a Config with the corresponding fields from the provided
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// clientauthenticationapi.Cluster. The returned Config will be anonymous (i.e., it will not have
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// any authentication-related fields set).
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func ExecClusterToConfig(cluster *clientauthenticationapi.Cluster) (*Config, error) {
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var proxy func(*http.Request) (*url.URL, error)
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if cluster.ProxyURL != "" {
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proxyURL, err := url.Parse(cluster.ProxyURL)
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if err != nil {
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return nil, fmt.Errorf("cannot parse proxy URL: %w", err)
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}
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proxy = http.ProxyURL(proxyURL)
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}
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return &Config{
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Host: cluster.Server,
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TLSClientConfig: TLSClientConfig{
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Insecure: cluster.InsecureSkipTLSVerify,
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ServerName: cluster.TLSServerName,
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CAData: cluster.CertificateAuthorityData,
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},
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Proxy: proxy,
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}, nil
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}
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