/
token.go
106 lines (95 loc) · 2.85 KB
/
token.go
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package cli
import (
"fmt"
"io/ioutil"
"os"
"os/user"
"path/filepath"
"strings"
"github.com/appcelerator/amp/api/auth"
"golang.org/x/net/context"
"google.golang.org/grpc/metadata"
)
var (
ampConfigFolder = filepath.Join(".config", "amp")
)
const (
//Credentials suffix for authentication token file
Credentials = ".credentials"
)
// SaveToken saves the authentication token to file
func SaveToken(headers metadata.MD, server string) error {
tokens := headers[auth.TokenKey]
ampTokenFile := strings.TrimSuffix(server, DefaultPort) + Credentials
// Extract token from header
if len(tokens) == 0 {
return fmt.Errorf("invalid token")
}
token := tokens[0]
if token == "" {
return fmt.Errorf("invalid token")
}
usr, err := user.Current()
if err != nil {
return fmt.Errorf("cannot get current user: %s", err)
}
if err := os.MkdirAll(filepath.Join(usr.HomeDir, ampConfigFolder), os.ModePerm); err != nil {
return fmt.Errorf("cannot create folder: %s", err)
}
if err := ioutil.WriteFile(filepath.Join(usr.HomeDir, ampConfigFolder, ampTokenFile), []byte(token), 0600); err != nil {
return fmt.Errorf("cannot write token: %s", err)
}
return nil
}
// ReadToken reads the authentication token from file
func ReadToken(server string) (string, error) {
ampTokenFile := strings.TrimSuffix(server, DefaultPort) + Credentials
usr, err := user.Current()
if err != nil {
return "", fmt.Errorf("cannot get current user: %s", err)
}
data, err := ioutil.ReadFile(filepath.Join(usr.HomeDir, ampConfigFolder, ampTokenFile))
if err != nil {
return "", fmt.Errorf("cannot read token: %s", err)
}
return string(data), nil
}
// RemoveToken deletes the authentication token file
func RemoveToken(server string) error {
ampTokenFile := strings.TrimSuffix(server, DefaultPort) + Credentials
usr, err := user.Current()
if err != nil {
return fmt.Errorf("cannot get current user: %s", err)
}
filePath := filepath.Join(usr.HomeDir, ampConfigFolder, ampTokenFile)
if _, err = os.Stat(filePath); os.IsNotExist(err) {
return fmt.Errorf("you are not logged in. Use `amp login` or `amp user signup`")
}
err = os.Remove(filePath)
if err != nil {
return fmt.Errorf("cannot remove token: %s", err)
}
return nil
}
// LoginCredentials represents login credentials
type LoginCredentials struct {
Token string
}
// GetRequestMetadata implements credentials.PerRPCCredentials
func (c *LoginCredentials) GetRequestMetadata(context.Context, ...string) (map[string]string, error) {
return map[string]string{
auth.AuthorizationHeader: auth.ForgeAuthorizationHeader(c.Token),
}, nil
}
// RequireTransportSecurity implements credentials.PerRPCCredentials
func (c *LoginCredentials) RequireTransportSecurity() bool {
return true
}
// GetToken returns the stored token
func GetToken(server string) string {
token, err := ReadToken(server)
if err != nil {
return ""
}
return token
}