forgejo-federation/models/ssh_key_principals.go
zeripath 5d2e11eedb
Refactor: Move login out of models (#16199)
`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>
2021-07-24 11:16:34 +01:00

125 lines
3.3 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/setting"
)
// __________ .__ .__ .__
// \______ _______|__| ____ ____ |_____________ | | ______
// | ___\_ __ | |/ \_/ ___\| \____ \__ \ | | / ___/
// | | | | \| | | \ \___| | |_> / __ \| |__\___ \
// |____| |__| |__|___| /\___ |__| __(____ |____/____ >
// \/ \/ |__| \/ \/
//
// This file contains functions related to principals
// AddPrincipalKey adds new principal to database and authorized_principals file.
func AddPrincipalKey(ownerID int64, content string, loginSourceID int64) (*PublicKey, error) {
sess := x.NewSession()
defer sess.Close()
if err := sess.Begin(); err != nil {
return nil, err
}
// Principals cannot be duplicated.
has, err := sess.
Where("content = ? AND type = ?", content, KeyTypePrincipal).
Get(new(PublicKey))
if err != nil {
return nil, err
} else if has {
return nil, ErrKeyAlreadyExist{0, "", content}
}
key := &PublicKey{
OwnerID: ownerID,
Name: content,
Content: content,
Mode: AccessModeWrite,
Type: KeyTypePrincipal,
LoginSourceID: loginSourceID,
}
if err = addPrincipalKey(sess, key); err != nil {
return nil, fmt.Errorf("addKey: %v", err)
}
if err = sess.Commit(); err != nil {
return nil, err
}
sess.Close()
return key, RewriteAllPrincipalKeys()
}
func addPrincipalKey(e Engine, key *PublicKey) (err error) {
// Save Key representing a principal.
if _, err = e.Insert(key); err != nil {
return err
}
return nil
}
// CheckPrincipalKeyString strips spaces and returns an error if the given principal contains newlines
func CheckPrincipalKeyString(user *User, content string) (_ string, err error) {
if setting.SSH.Disabled {
return "", ErrSSHDisabled{}
}
content = strings.TrimSpace(content)
if strings.ContainsAny(content, "\r\n") {
return "", errors.New("only a single line with a single principal please")
}
// check all the allowed principals, email, username or anything
// if any matches, return ok
for _, v := range setting.SSH.AuthorizedPrincipalsAllow {
switch v {
case "anything":
return content, nil
case "email":
emails, err := GetEmailAddresses(user.ID)
if err != nil {
return "", err
}
for _, email := range emails {
if !email.IsActivated {
continue
}
if content == email.Email {
return content, nil
}
}
case "username":
if content == user.Name {
return content, nil
}
}
}
return "", fmt.Errorf("didn't match allowed principals: %s", setting.SSH.AuthorizedPrincipalsAllow)
}
// ListPrincipalKeys returns a list of principals belongs to given user.
func ListPrincipalKeys(uid int64, listOptions ListOptions) ([]*PublicKey, error) {
sess := x.Where("owner_id = ? AND type = ?", uid, KeyTypePrincipal)
if listOptions.Page != 0 {
sess = listOptions.setSessionPagination(sess)
keys := make([]*PublicKey, 0, listOptions.PageSize)
return keys, sess.Find(&keys)
}
keys := make([]*PublicKey, 0, 5)
return keys, sess.Find(&keys)
}