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move git auth prompts to interact module (#276) 

move password prompt to interact module

closes #231

allow up to 3 ssh key password attempts

rename param

Co-authored-by: Norwin Roosen <git@nroo.de>
Reviewed-on: https://gitea.com/gitea/tea/pulls/276
Reviewed-by: 6543 <6543@obermui.de>
Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-Authored-By: Norwin <noerw@noreply.gitea.io>
Co-Committed-By: Norwin <noerw@noreply.gitea.io>
This commit is contained in:
Norwin 2020-12-08 09:21:05 +08:00 committed by 6543
parent 9a3b54b9a3
commit d0e05e8be2
4 changed files with 38 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
modules/git/auth.go
View File

@ -15,13 +15,14 @@ import (
gogit_http "github.com/go-git/go-git/v5/plumbing/transport/http"
gogit_ssh "github.com/go-git/go-git/v5/plumbing/transport/ssh"
"golang.org/x/crypto/ssh"
"golang.org/x/crypto/ssh/terminal"
)
type pwCallback = func(ctx string) (string, error)
// GetAuthForURL returns the appropriate AuthMethod to be used in Push() / Pull()
// operations depending on the protocol, and prompts the user for credentials if
// necessary.
func GetAuthForURL(remoteURL *url.URL, authToken, keyFile string) (auth git_transport.AuthMethod, err error) {
func GetAuthForURL(remoteURL *url.URL, authToken, keyFile string, passwordCallback pwCallback) (auth git_transport.AuthMethod, err error) {
switch remoteURL.Scheme {
case "http", "https":
// gitea supports push/pull via app token as username.
@ -32,7 +33,7 @@ func GetAuthForURL(remoteURL *url.URL, authToken, keyFile string) (auth git_tran
user := remoteURL.User.Username()
auth, err = gogit_ssh.DefaultAuthBuilder(user)
if err != nil {
signer, err := readSSHPrivKey(keyFile)
signer, err := readSSHPrivKey(keyFile, passwordCallback)
if err != nil {
return nil, err
}
@ -46,7 +47,7 @@ func GetAuthForURL(remoteURL *url.URL, authToken, keyFile string) (auth git_tran
return auth, nil
}
func readSSHPrivKey(keyFile string) (sig ssh.Signer, err error) {
func readSSHPrivKey(keyFile string, passwordCallback pwCallback) (sig ssh.Signer, err error) {
if keyFile != "" {
keyFile, err = utils.AbsPathWithExpansion(keyFile)
} else {
@ -60,21 +61,19 @@ func readSSHPrivKey(keyFile string) (sig ssh.Signer, err error) {
return nil, err
}
sig, err = ssh.ParsePrivateKey(sshKey)
if err != nil {
pass, err := promptPass(keyFile)
if _, ok := err.(*ssh.PassphraseMissingError); ok {
// allow for up to 3 password attempts
for i := 0; i < 3; i++ {
var pass string
pass, err = passwordCallback(keyFile)
if err != nil {
return nil, err
}
sig, err = ssh.ParsePrivateKeyWithPassphrase(sshKey, []byte(pass))
if err != nil {
return nil, err
if err == nil {
break
}
}
}
return sig, err
}
func promptPass(domain string) (string, error) {
fmt.Printf("%s password: ", domain)
pass, err := terminal.ReadPassword(0)
return string(pass), err
}

16
modules/interact/prompts.go Normal file
View File

@ -0,0 +1,16 @@
// Copyright 2020 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package interact
import (
"github.com/AlecAivazis/survey/v2"
)
// PromptPassword asks for a password and blocks until input was made.
func PromptPassword(name string) (pass string, err error) {
promptPW := &survey.Password{Message: name + " password:"}
err = survey.AskOne(promptPW, &pass, survey.WithValidator(survey.Required))
return
}

4
modules/task/pull_checkout.go
View File

@ -10,7 +10,7 @@ import (
"code.gitea.io/sdk/gitea"
"code.gitea.io/tea/modules/config"
local_git "code.gitea.io/tea/modules/git"
"code.gitea.io/tea/modules/interact"
"github.com/go-git/go-git/v5"
)
@ -60,7 +60,7 @@ func PullCheckout(login *config.Login, repoOwner, repoName string, index int64)
if err != nil {
return err
}
auth, err := local_git.GetAuthForURL(url, login.Token, login.SSHKey)
auth, err := local_git.GetAuthForURL(url, login.Token, login.SSHKey, interact.PromptPassword)
if err != nil {
return err
}

5
modules/task/pull_clean.go
View File

@ -7,10 +7,11 @@ package task
import (
"fmt"
"code.gitea.io/sdk/gitea"
"code.gitea.io/tea/modules/config"
local_git "code.gitea.io/tea/modules/git"
"code.gitea.io/tea/modules/interact"
"code.gitea.io/sdk/gitea"
git_config "github.com/go-git/go-git/v5/config"
)
@ -78,7 +79,7 @@ call me again with the --ignore-sha flag`, pr.Head.Ref)
if err != nil {
return err
}
auth, err := local_git.GetAuthForURL(url, login.Token, login.SSHKey)
auth, err := local_git.GetAuthForURL(url, login.Token, login.SSHKey, interact.PromptPassword)
if err != nil {
return err
}