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// Copyright 2015 go-dockerclient authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package docker
import (
"encoding/base64"
"encoding/json"
"io"
"os"
"path"
"strings"
)
// AuthConfiguration represents authentication options to use in the PushImage
// method. It represents the authentication in the Docker index server.
type AuthConfiguration struct {
Username string `json:"username,omitempty"`
Password string `json:"password,omitempty"`
Email string `json:"email,omitempty"`
ServerAddress string `json:"serveraddress,omitempty"`
}
// AuthConfigurations represents authentication options to use for the
// PushImage method accommodating the new X-Registry-Config header
type AuthConfigurations struct {
Configs map[string]AuthConfiguration `json:"configs"`
}
// dockerConfig represents a registry authentation configuration from the
// .dockercfg file.
type dockerConfig struct {
Auth string `json:"auth"`
Email string `json:"email"`
}
// NewAuthConfigurationsFromDockerCfg returns AuthConfigurations from the
// ~/.dockercfg file.
func NewAuthConfigurationsFromDockerCfg() (*AuthConfigurations, error) {
p := path.Join(os.Getenv("HOME"), ".dockercfg")
r, err := os.Open(p)
if err != nil {
return nil, err
}
return NewAuthConfigurations(r)
}
// NewAuthConfigurations returns AuthConfigurations from a JSON encoded string in the
// same format as the .dockercfg file.
func NewAuthConfigurations(r io.Reader) (*AuthConfigurations, error) {
var auth *AuthConfigurations
var confs map[string]dockerConfig
if err := json.NewDecoder(r).Decode(&confs); err != nil {
return nil, err
}
auth, err := authConfigs(confs)
if err != nil {
return nil, err
}
return auth, nil
}
// authConfigs converts a dockerConfigs map to a AuthConfigurations object.
func authConfigs(confs map[string]dockerConfig) (*AuthConfigurations, error) {
c := &AuthConfigurations{
Configs: make(map[string]AuthConfiguration),
}
for reg, conf := range confs {
data, err := base64.StdEncoding.DecodeString(conf.Auth)
if err != nil {
return nil, err
}
userpass := strings.Split(string(data), ":")
c.Configs[reg] = AuthConfiguration{
Email: conf.Email,
Username: userpass[0],
Password: userpass[1],
ServerAddress: reg,
}
}
return c, nil
}
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