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111 lines
3.9 KiB
Go
111 lines
3.9 KiB
Go
/*
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Copyright 2015 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 transport
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import (
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"context"
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"crypto/tls"
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"net"
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"net/http"
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)
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// Config holds various options for establishing a transport.
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type Config struct {
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// UserAgent is an optional field that specifies the caller of this
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// request.
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UserAgent string
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// The base TLS configuration for this transport.
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TLS TLSConfig
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// Username and password for basic authentication
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Username string
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Password string
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// Bearer token for authentication
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BearerToken string
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// Impersonate is the config that this Config will impersonate using
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Impersonate ImpersonationConfig
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// Transport may be used for custom HTTP behavior. This attribute may
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// not be specified with the TLS client certificate options. Use
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// WrapTransport for most client level operations.
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Transport http.RoundTripper
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// WrapTransport will be invoked for custom HTTP behavior after the
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// underlying transport is initialized (either the transport created
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// from TLSClientConfig, Transport, or http.DefaultTransport). The
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// config may layer other RoundTrippers on top of the returned
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// RoundTripper.
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WrapTransport func(rt http.RoundTripper) http.RoundTripper
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// Dial specifies the dial function for creating unencrypted TCP connections.
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Dial func(ctx context.Context, network, address string) (net.Conn, error)
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}
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// ImpersonationConfig has all the available impersonation options
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type ImpersonationConfig struct {
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// UserName matches user.Info.GetName()
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UserName string
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// Groups matches user.Info.GetGroups()
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Groups []string
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// Extra matches user.Info.GetExtra()
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Extra map[string][]string
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}
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// HasCA returns whether the configuration has a certificate authority or not.
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func (c *Config) HasCA() bool {
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return len(c.TLS.CAData) > 0 || len(c.TLS.CAFile) > 0
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}
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// HasBasicAuth returns whether the configuration has basic authentication or not.
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func (c *Config) HasBasicAuth() bool {
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return len(c.Username) != 0
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}
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// HasTokenAuth returns whether the configuration has token authentication or not.
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func (c *Config) HasTokenAuth() bool {
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return len(c.BearerToken) != 0
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}
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// HasCertAuth returns whether the configuration has certificate authentication or not.
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func (c *Config) HasCertAuth() bool {
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return (len(c.TLS.CertData) != 0 || len(c.TLS.CertFile) != 0) && (len(c.TLS.KeyData) != 0 || len(c.TLS.KeyFile) != 0)
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}
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// HasCertCallbacks returns whether the configuration has certificate callback or not.
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func (c *Config) HasCertCallback() bool {
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return c.TLS.GetCert != nil
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}
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// TLSConfig holds the information needed to set up a TLS transport.
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type TLSConfig struct {
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CAFile string // Path of the PEM-encoded server trusted root certificates.
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CertFile string // Path of the PEM-encoded client certificate.
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KeyFile string // Path of the PEM-encoded client key.
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Insecure bool // Server should be accessed without verifying the certificate. For testing only.
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ServerName string // Override for the server name passed to the server for SNI and used to verify certificates.
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CAData []byte // Bytes of the PEM-encoded server trusted root certificates. Supercedes CAFile.
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CertData []byte // Bytes of the PEM-encoded client certificate. Supercedes CertFile.
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KeyData []byte // Bytes of the PEM-encoded client key. Supercedes KeyFile.
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GetCert func() (*tls.Certificate, error) // Callback that returns a TLS client certificate. CertData, CertFile, KeyData and KeyFile supercede this field.
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}
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