/
keys_commands.go
260 lines (229 loc) · 6.63 KB
/
keys_commands.go
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package cmd
import (
"bytes"
"fmt"
"io"
"net/http"
"os"
"strings"
"github.com/pkg/errors"
"github.com/urfave/cli"
"go.uber.org/multierr"
"github.com/smartcontractkit/chainlink/v2/core/services/keystore"
"github.com/smartcontractkit/chainlink/v2/core/utils"
)
// KeysClient is a generic client interface for any type of key.
type KeysClient interface {
CreateKey(*cli.Context) error
ImportKey(*cli.Context) error
ExportKey(*cli.Context) error
DeleteKey(*cli.Context) error
ListKeys(*cli.Context) error
}
// keysCommand returns a cli.Command with subcommands for the given KeysClient.
func keysCommand(typ string, c KeysClient) cli.Command {
lower := strings.ToLower(typ)
return cli.Command{
Name: lower,
Usage: fmt.Sprintf("Remote commands for administering the node's %s keys", typ),
Subcommands: cli.Commands{
{
Name: "create",
Usage: fmt.Sprintf("Create a %s key", typ),
Action: c.CreateKey,
},
{
Name: "import",
Usage: fmt.Sprintf("Import %s key from keyfile", typ),
Flags: []cli.Flag{
cli.StringFlag{
Name: "old-password, oldpassword, p",
Usage: "`FILE` containing the password used to encrypt the key in the JSON file",
},
},
Action: c.ImportKey,
},
{
Name: "export",
Usage: fmt.Sprintf("Export %s key to keyfile", typ),
Flags: []cli.Flag{
cli.StringFlag{
Name: "new-password, newpassword, p",
Usage: "`FILE` containing the password to encrypt the key (required)",
},
cli.StringFlag{
Name: "output, o",
Usage: "`FILE` where the JSON file will be saved (required)",
},
},
Action: c.ExportKey,
},
{
Name: "delete",
Usage: fmt.Sprintf("Delete %s key if present", typ),
Flags: []cli.Flag{
cli.BoolFlag{
Name: "yes, y",
Usage: "skip the confirmation prompt",
},
cli.BoolFlag{
Name: "hard",
Usage: "hard-delete the key instead of archiving (irreversible!)",
},
},
Action: c.DeleteKey,
},
{
Name: "list", Usage: fmt.Sprintf("List the %s keys", typ),
Action: c.ListKeys,
},
},
}
}
type keysClient[K keystore.Key, P TableRenderer, P2 ~[]P] struct {
*Shell
typ string
path string
}
// newKeysClient returns a new KeysClient for a particular type of keystore.Key.
// P is a TableRenderer corresponding to K, and P2 is the slice variant.
func newKeysClient[K keystore.Key, P TableRenderer, P2 ~[]P](typ string, s *Shell) KeysClient {
lower := strings.ToLower(typ)
return &keysClient[K, P, P2]{
Shell: s,
typ: typ,
path: "/v2/keys/" + lower,
}
}
// ListKeys retrieves a list of all keys
func (cli *keysClient[K, P, P2]) ListKeys(_ *cli.Context) (err error) {
resp, err := cli.HTTP.Get(cli.ctx(), cli.path, nil)
if err != nil {
return cli.errorOut(err)
}
defer func() {
if cerr := resp.Body.Close(); cerr != nil {
err = multierr.Append(err, cerr)
}
}()
var p2 P2
return cli.renderAPIResponse(resp, &p2)
}
// CreateKey creates a new key
func (cli *keysClient[K, P, P2]) CreateKey(_ *cli.Context) (err error) {
resp, err := cli.HTTP.Post(cli.ctx(), cli.path, nil)
if err != nil {
return cli.errorOut(err)
}
defer func() {
if cerr := resp.Body.Close(); cerr != nil {
err = multierr.Append(err, cerr)
}
}()
var p P
return cli.renderAPIResponse(resp, &p, fmt.Sprintf("Created %s keypair", cli.typ))
}
// DeleteKey deletes a key,
// key ID must be passed
func (cli *keysClient[K, P, P2]) DeleteKey(c *cli.Context) (err error) {
if !c.Args().Present() {
return cli.errorOut(errors.New("Must pass the key ID to be deleted"))
}
id := c.Args().Get(0)
if !confirmAction(c) {
return nil
}
var queryStr string
if c.Bool("hard") {
queryStr = "?hard=true"
}
resp, err := cli.HTTP.Delete(cli.ctx(), fmt.Sprintf(cli.path+"/%s%s", id, queryStr))
if err != nil {
return cli.errorOut(err)
}
defer func() {
if cerr := resp.Body.Close(); cerr != nil {
err = multierr.Append(err, cerr)
}
}()
var p P
return cli.renderAPIResponse(resp, &p, " key deleted")
}
// ImportKey imports and stores a key,
// path to key must be passed
func (cli *keysClient[K, P, P2]) ImportKey(c *cli.Context) (err error) {
if !c.Args().Present() {
return cli.errorOut(errors.New("Must pass the filepath of the key to be imported"))
}
oldPasswordFile := c.String("old-password")
if len(oldPasswordFile) == 0 {
return cli.errorOut(errors.New("Must specify --old-password/-p flag"))
}
oldPassword, err := os.ReadFile(oldPasswordFile)
if err != nil {
return cli.errorOut(errors.Wrap(err, "Could not read password file"))
}
filepath := c.Args().Get(0)
keyJSON, err := os.ReadFile(filepath)
if err != nil {
return cli.errorOut(err)
}
normalizedPassword := normalizePassword(string(oldPassword))
resp, err := cli.HTTP.Post(cli.ctx(), cli.path+"/import?oldpassword="+normalizedPassword, bytes.NewReader(keyJSON))
if err != nil {
return cli.errorOut(err)
}
defer func() {
if cerr := resp.Body.Close(); cerr != nil {
err = multierr.Append(err, cerr)
}
}()
var p P
return cli.renderAPIResponse(resp, &p, fmt.Sprintf("🔑 Imported %s key", cli.typ))
}
// ExportKey exports a key,
// key ID must be passed
func (cli *keysClient[K, P, P2]) ExportKey(c *cli.Context) (err error) {
if !c.Args().Present() {
return cli.errorOut(errors.New("Must pass the ID of the key to export"))
}
newPasswordFile := c.String("new-password")
if len(newPasswordFile) == 0 {
return cli.errorOut(errors.New("Must specify --new-password/-p flag"))
}
newPassword, err := os.ReadFile(newPasswordFile)
if err != nil {
return cli.errorOut(errors.Wrap(err, "Could not read password file"))
}
filepath := c.String("output")
if len(filepath) == 0 {
return cli.errorOut(errors.New("Must specify --output/-o flag"))
}
ID := c.Args().Get(0)
normalizedPassword := normalizePassword(string(newPassword))
resp, err := cli.HTTP.Post(cli.ctx(), cli.path+"/export/"+ID+"?newpassword="+normalizedPassword, nil)
if err != nil {
return cli.errorOut(errors.Wrap(err, "Could not make HTTP request"))
}
defer func() {
if cerr := resp.Body.Close(); cerr != nil {
err = multierr.Append(err, cerr)
}
}()
if resp.StatusCode != http.StatusOK {
return cli.errorOut(fmt.Errorf("error exporting: %w", httpError(resp)))
}
keyJSON, err := io.ReadAll(resp.Body)
if err != nil {
return cli.errorOut(errors.Wrap(err, "Could not read response body"))
}
err = utils.WriteFileWithMaxPerms(filepath, keyJSON, 0600)
if err != nil {
return cli.errorOut(errors.Wrapf(err, "Could not write %v", filepath))
}
_, err = os.Stderr.WriteString(fmt.Sprintf("🔑 Exported %s key %s to %s\n", cli.typ, ID, filepath))
if err != nil {
return cli.errorOut(err)
}
return nil
}