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localconfig.go
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localconfig.go
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package localconfig
import (
"fmt"
"os"
"os/user"
"path"
"strings"
"github.com/dgrijalva/jwt-go/v4"
configUtil "github.com/argoproj/argo-cd/v2/util/config"
)
// LocalConfig is a local Argo CD config file
type LocalConfig struct {
CurrentContext string `json:"current-context"`
Contexts []ContextRef `json:"contexts"`
Servers []Server `json:"servers"`
Users []User `json:"users"`
}
// ContextRef is a reference to a Server and User for an API client
type ContextRef struct {
Name string `json:"name"`
Server string `json:"server"`
User string `json:"user"`
}
// Context is the resolved Server and User objects resolved
type Context struct {
Name string
Server Server
User User
}
// Server contains Argo CD server information
type Server struct {
// Server is the Argo CD server address
Server string `json:"server"`
// Insecure indicates to connect to the server over TLS insecurely
Insecure bool `json:"insecure,omitempty"`
// GRPCWeb indicates to connect to the server using gRPC Web protocol
GRPCWeb bool `json:"grpc-web,omitempty"`
// GRPCWebRootPath indicates to connect to the server using gRPC Web protocol with this root path
GRPCWebRootPath string `json:"grpc-web-root-path"`
// CACertificateAuthorityData is the base64 string of a PEM encoded certificate
// TODO: not yet implemented
CACertificateAuthorityData string `json:"certificate-authority-data,omitempty"`
// ClientCertificateData is the base64 string of a PEM encoded certificate used to authenticate the client
ClientCertificateData string `json:"client-certificate-data,omitempty"`
// ClientCertificateKeyData is the base64 string of a PEM encoded private key of the client certificate
ClientCertificateKeyData string `json:"client-certificate-key-data,omitempty"`
// PlainText indicates to connect with TLS disabled
PlainText bool `json:"plain-text,omitempty"`
// Core indicates to talk to Kubernetes API without using Argo CD API server
Core bool `json:"core,omitempty"`
}
// User contains user authentication information
type User struct {
Name string `json:"name"`
AuthToken string `json:"auth-token,omitempty"`
RefreshToken string `json:"refresh-token,omitempty"`
}
// Claims returns the standard claims from the JWT claims
func (u *User) Claims() (*jwt.StandardClaims, error) {
parser := &jwt.Parser{
ValidationHelper: jwt.NewValidationHelper(jwt.WithoutClaimsValidation(), jwt.WithoutAudienceValidation()),
}
claims := jwt.StandardClaims{}
_, _, err := parser.ParseUnverified(u.AuthToken, &claims)
if err != nil {
return nil, err
}
return &claims, nil
}
// ReadLocalConfig loads up the local configuration file. Returns nil if config does not exist
func ReadLocalConfig(path string) (*LocalConfig, error) {
var err error
var config LocalConfig
err = configUtil.UnmarshalLocalFile(path, &config)
if os.IsNotExist(err) {
return nil, nil
}
err = ValidateLocalConfig(config)
if err != nil {
return nil, err
}
return &config, nil
}
func ValidateLocalConfig(config LocalConfig) error {
if config.CurrentContext == "" {
return nil
}
if _, err := config.ResolveContext(config.CurrentContext); err != nil {
return fmt.Errorf("Local config invalid: %s", err)
}
return nil
}
// WriteLocalConfig writes a new local configuration file.
func WriteLocalConfig(config LocalConfig, configPath string) error {
err := os.MkdirAll(path.Dir(configPath), os.ModePerm)
if err != nil {
return err
}
return configUtil.MarshalLocalYAMLFile(configPath, config)
}
func DeleteLocalConfig(configPath string) error {
_, err := os.Stat(configPath)
if os.IsNotExist(err) {
return err
}
return os.Remove(configPath)
}
// ResolveContext resolves the specified context. If unspecified, resolves the current context
func (l *LocalConfig) ResolveContext(name string) (*Context, error) {
if name == "" {
if l.CurrentContext == "" {
return nil, fmt.Errorf("Local config: current-context unset")
}
name = l.CurrentContext
}
for _, ctx := range l.Contexts {
if ctx.Name == name {
server, err := l.GetServer(ctx.Server)
if err != nil {
return nil, err
}
user, err := l.GetUser(ctx.User)
if err != nil {
return nil, err
}
return &Context{
Name: ctx.Name,
Server: *server,
User: *user,
}, nil
}
}
return nil, fmt.Errorf("Context '%s' undefined", name)
}
func (l *LocalConfig) GetServer(name string) (*Server, error) {
for _, s := range l.Servers {
if s.Server == name {
return &s, nil
}
}
return nil, fmt.Errorf("Server '%s' undefined", name)
}
func (l *LocalConfig) UpsertServer(server Server) {
for i, s := range l.Servers {
if s.Server == server.Server {
l.Servers[i] = server
return
}
}
l.Servers = append(l.Servers, server)
}
// Returns true if server was removed successfully
func (l *LocalConfig) RemoveServer(serverName string) bool {
for i, s := range l.Servers {
if s.Server == serverName {
l.Servers = append(l.Servers[:i], l.Servers[i+1:]...)
return true
}
}
return false
}
func (l *LocalConfig) GetUser(name string) (*User, error) {
for _, u := range l.Users {
if u.Name == name {
return &u, nil
}
}
return nil, fmt.Errorf("User '%s' undefined", name)
}
func (l *LocalConfig) UpsertUser(user User) {
for i, u := range l.Users {
if u.Name == user.Name {
l.Users[i] = user
return
}
}
l.Users = append(l.Users, user)
}
// Returns true if user was removed successfully
func (l *LocalConfig) RemoveUser(serverName string) bool {
for i, u := range l.Users {
if u.Name == serverName {
l.Users = append(l.Users[:i], l.Users[i+1:]...)
return true
}
}
return false
}
// Returns true if user was removed successfully
func (l *LocalConfig) RemoveToken(serverName string) bool {
for i, u := range l.Users {
if u.Name == serverName {
l.Users[i].RefreshToken = ""
l.Users[i].AuthToken = ""
return true
}
}
return false
}
func (l *LocalConfig) UpsertContext(context ContextRef) {
for i, c := range l.Contexts {
if c.Name == context.Name {
l.Contexts[i] = context
return
}
}
l.Contexts = append(l.Contexts, context)
}
// Returns true if context was removed successfully
func (l *LocalConfig) RemoveContext(serverName string) (string, bool) {
for i, c := range l.Contexts {
if c.Name == serverName {
l.Contexts = append(l.Contexts[:i], l.Contexts[i+1:]...)
return c.Server, true
}
}
return "", false
}
func (l *LocalConfig) IsEmpty() bool {
return len(l.Servers) == 0
}
// DefaultConfigDir returns the local configuration path for settings such as cached authentication tokens.
func DefaultConfigDir() (string, error) {
homeDir := os.Getenv("HOME")
if homeDir == "" {
usr, err := user.Current()
if err != nil {
return "", err
}
homeDir = usr.HomeDir
}
return path.Join(homeDir, ".argocd"), nil
}
// DefaultLocalConfigPath returns the local configuration path for settings such as cached authentication tokens.
func DefaultLocalConfigPath() (string, error) {
dir, err := DefaultConfigDir()
if err != nil {
return "", err
}
return path.Join(dir, "config"), nil
}
// Get username from subject in a claim
func GetUsername(subject string) string {
parts := strings.Split(subject, ":")
if len(parts) > 0 {
return parts[0]
}
return subject
}