74 lines
1.9 KiB
Go
74 lines
1.9 KiB
Go
package git
|
|
|
|
import (
|
|
"fmt"
|
|
"io/ioutil"
|
|
"os"
|
|
"path/filepath"
|
|
"strings"
|
|
|
|
"github.com/go-git/go-git/v5/plumbing/transport"
|
|
"github.com/go-git/go-git/v5/plumbing/transport/http"
|
|
"github.com/go-git/go-git/v5/plumbing/transport/ssh"
|
|
corev1 "k8s.io/api/core/v1"
|
|
)
|
|
|
|
func AuthMethodFromSecret(url string, secret corev1.Secret) (transport.AuthMethod, func(), error) {
|
|
switch {
|
|
case strings.HasPrefix(url, "http"):
|
|
auth, err := BasicAuthFromSecret(secret)
|
|
return auth, nil, err
|
|
case strings.HasPrefix(url, "ssh"):
|
|
return PublicKeysFromSecret(secret)
|
|
}
|
|
return nil, nil, nil
|
|
}
|
|
|
|
func BasicAuthFromSecret(secret corev1.Secret) (*http.BasicAuth, error) {
|
|
auth := &http.BasicAuth{}
|
|
if username, ok := secret.Data["username"]; ok {
|
|
auth.Username = string(username)
|
|
}
|
|
if password, ok := secret.Data["password"]; ok {
|
|
auth.Password = string(password)
|
|
}
|
|
if auth.Username == "" || auth.Password == "" {
|
|
return nil, fmt.Errorf("invalid '%s' secret data: required fields 'username' and 'password'", secret.Name)
|
|
}
|
|
return auth, nil
|
|
}
|
|
|
|
func PublicKeysFromSecret(secret corev1.Secret) (*ssh.PublicKeys, func(), error) {
|
|
identity := secret.Data["identity"]
|
|
knownHosts := secret.Data["known_hosts"]
|
|
if len(identity) == 0 || len(knownHosts) == 0 {
|
|
return nil, nil, fmt.Errorf("invalid '%s' secret data: required fields 'identity' and 'known_hosts'", secret.Name)
|
|
}
|
|
|
|
pk, err := ssh.NewPublicKeys("git", identity, "")
|
|
if err != nil {
|
|
return nil, nil, err
|
|
}
|
|
|
|
// create tmp dir for known_hosts
|
|
tmp, err := ioutil.TempDir("", "ssh-"+secret.Name)
|
|
if err != nil {
|
|
return nil, nil, err
|
|
}
|
|
cleanup := func() { os.RemoveAll(tmp) }
|
|
|
|
knownHostsPath := filepath.Join(tmp, "known_hosts")
|
|
if err := ioutil.WriteFile(knownHostsPath, knownHosts, 0644); err != nil {
|
|
cleanup()
|
|
return nil, nil, err
|
|
}
|
|
|
|
callback, err := ssh.NewKnownHostsCallback(knownHostsPath)
|
|
if err != nil {
|
|
cleanup()
|
|
return nil, nil, err
|
|
}
|
|
pk.HostKeyCallback = callback
|
|
return pk, cleanup, nil
|
|
}
|