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// 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 asymkey
import (
"errors"
"fmt"
"strings"
"code.gitea.io/gitea/models/db"
"code.gitea.io/gitea/models/perm"
user_model "code.gitea.io/gitea/models/user"
"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, authSourceID int64) (*PublicKey, error) {
ctx, committer, err := db.TxContext()
if err != nil {
return nil, err
}
defer committer.Close()
sess := db.GetEngine(ctx)
// 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: perm.AccessModeWrite,
Type: KeyTypePrincipal,
LoginSourceID: authSourceID,
}
if err = addPrincipalKey(sess, key); err != nil {
return nil, fmt.Errorf("addKey: %v", err)
}
if err = committer.Commit(); err != nil {
return nil, err
}
committer.Close()
return key, RewriteAllPrincipalKeys()
}
func addPrincipalKey(e db.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_model.User, content string) (_ string, err error) {
if setting.SSH.Disabled {
return "", db.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 := user_model.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 db.ListOptions) ([]*PublicKey, error) {
sess := db.GetEngine(db.DefaultContext).Where("owner_id = ? AND type = ?", uid, KeyTypePrincipal)
if listOptions.Page != 0 {
sess = db.SetSessionPagination(sess, &listOptions)
keys := make([]*PublicKey, 0, listOptions.PageSize)
return keys, sess.Find(&keys)
}
keys := make([]*PublicKey, 0, 5)
return keys, sess.Find(&keys)
}
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