5d2e11eedb
`models` does far too much. In particular it handles all `UserSignin`. It shouldn't be responsible for calling LDAP, SMTP or PAM for signing in. Therefore we should move this code out of `models`. This code has to depend on `models` - therefore it belongs in `services`. There is a package in `services` called `auth` and clearly this functionality belongs in there. Plan: - [x] Change `auth.Auth` to `auth.Method` - as they represent methods of authentication. - [x] Move `models.UserSignIn` into `auth` - [x] Move `models.ExternalUserLogin` - [x] Move most of the `LoginVia*` methods to `auth` or subpackages - [x] Move Resynchronize functionality to `auth` - Involved some restructuring of `models/ssh_key.go` to reduce the size of this massive file and simplify its files. - [x] Move the rest of the LDAP functionality in to the ldap subpackage - [x] Re-factor the login sources to express an interfaces `auth.Source`? - I've done this through some smaller interfaces Authenticator and Synchronizable - which would allow us to extend things in future - [x] Now LDAP is out of models - need to think about modules/auth/ldap and I think all of that functionality might just be moveable - [x] Similarly a lot Oauth2 functionality need not be in models too and should be moved to services/auth/source/oauth2 - [x] modules/auth/oauth2/oauth2.go uses xorm... This is naughty - probably need to move this into models. - [x] models/oauth2.go - mostly should be in modules/auth/oauth2 or services/auth/source/oauth2 - [x] More simplifications of login_source.go may need to be done - Allow wiring in of notify registration - *this can now easily be done - but I think we should do it in another PR* - see #16178 - More refactors...? - OpenID should probably become an auth Method but I think that can be left for another PR - Methods should also probably be cleaned up - again another PR I think. - SSPI still needs more refactors.* Rename auth.Auth auth.Method * Restructure ssh_key.go - move functions from models/user.go that relate to ssh_key to ssh_key - split ssh_key.go to try create clearer function domains for allow for future refactors here. Signed-off-by: Andrew Thornton <art27@cantab.net>
98 lines
3.0 KiB
Go
98 lines
3.0 KiB
Go
// Copyright 2021 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 models
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
"strings"
|
|
|
|
"code.gitea.io/gitea/modules/log"
|
|
"code.gitea.io/gitea/modules/process"
|
|
"code.gitea.io/gitea/modules/setting"
|
|
"code.gitea.io/gitea/modules/util"
|
|
"golang.org/x/crypto/ssh"
|
|
)
|
|
|
|
// ___________.__ .__ __
|
|
// \_ _____/|__| ____ ____ ________________________|__| _____/ |_
|
|
// | __) | |/ \ / ___\_/ __ \_ __ \____ \_ __ \ |/ \ __\
|
|
// | \ | | | \/ /_/ > ___/| | \/ |_> > | \/ | | \ |
|
|
// \___ / |__|___| /\___ / \___ >__| | __/|__| |__|___| /__|
|
|
// \/ \//_____/ \/ |__| \/
|
|
//
|
|
// This file contains functions for fingerprinting SSH keys
|
|
//
|
|
// The database is used in checkKeyFingerprint however most of these functions probably belong in a module
|
|
|
|
// checkKeyFingerprint only checks if key fingerprint has been used as public key,
|
|
// it is OK to use same key as deploy key for multiple repositories/users.
|
|
func checkKeyFingerprint(e Engine, fingerprint string) error {
|
|
has, err := e.Get(&PublicKey{
|
|
Fingerprint: fingerprint,
|
|
})
|
|
if err != nil {
|
|
return err
|
|
} else if has {
|
|
return ErrKeyAlreadyExist{0, fingerprint, ""}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func calcFingerprintSSHKeygen(publicKeyContent string) (string, error) {
|
|
// Calculate fingerprint.
|
|
tmpPath, err := writeTmpKeyFile(publicKeyContent)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
defer func() {
|
|
if err := util.Remove(tmpPath); err != nil {
|
|
log.Warn("Unable to remove temporary key file: %s: Error: %v", tmpPath, err)
|
|
}
|
|
}()
|
|
stdout, stderr, err := process.GetManager().Exec("AddPublicKey", "ssh-keygen", "-lf", tmpPath)
|
|
if err != nil {
|
|
if strings.Contains(stderr, "is not a public key file") {
|
|
return "", ErrKeyUnableVerify{stderr}
|
|
}
|
|
return "", fmt.Errorf("'ssh-keygen -lf %s' failed with error '%s': %s", tmpPath, err, stderr)
|
|
} else if len(stdout) < 2 {
|
|
return "", errors.New("not enough output for calculating fingerprint: " + stdout)
|
|
}
|
|
return strings.Split(stdout, " ")[1], nil
|
|
}
|
|
|
|
func calcFingerprintNative(publicKeyContent string) (string, error) {
|
|
// Calculate fingerprint.
|
|
pk, _, _, _, err := ssh.ParseAuthorizedKey([]byte(publicKeyContent))
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
return ssh.FingerprintSHA256(pk), nil
|
|
}
|
|
|
|
func calcFingerprint(publicKeyContent string) (string, error) {
|
|
// Call the method based on configuration
|
|
var (
|
|
fnName, fp string
|
|
err error
|
|
)
|
|
if setting.SSH.StartBuiltinServer {
|
|
fnName = "calcFingerprintNative"
|
|
fp, err = calcFingerprintNative(publicKeyContent)
|
|
} else {
|
|
fnName = "calcFingerprintSSHKeygen"
|
|
fp, err = calcFingerprintSSHKeygen(publicKeyContent)
|
|
}
|
|
if err != nil {
|
|
if IsErrKeyUnableVerify(err) {
|
|
log.Info("%s", publicKeyContent)
|
|
return "", err
|
|
}
|
|
return "", fmt.Errorf("%s: %v", fnName, err)
|
|
}
|
|
return fp, nil
|
|
}
|