forgejo-federation/models/ssh_key_deploy.go
2021-11-28 12:58:28 +01:00

321 lines
8.4 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 (
"fmt"
"time"
"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/timeutil"
"xorm.io/builder"
)
// ________ .__ ____ __.
// \______ \ ____ ______ | | ____ ___.__.| |/ _|____ ___.__.
// | | \_/ __ \\____ \| | / _ < | || <_/ __ < | |
// | ` \ ___/| |_> > |_( <_> )___ || | \ ___/\___ |
// /_______ /\___ > __/|____/\____// ____||____|__ \___ > ____|
// \/ \/|__| \/ \/ \/\/
//
// This file contains functions specific to DeployKeys
// DeployKey represents deploy key information and its relation with repository.
type DeployKey struct {
ID int64 `xorm:"pk autoincr"`
KeyID int64 `xorm:"UNIQUE(s) INDEX"`
RepoID int64 `xorm:"UNIQUE(s) INDEX"`
Name string
Fingerprint string
Content string `xorm:"-"`
Mode perm.AccessMode `xorm:"NOT NULL DEFAULT 1"`
CreatedUnix timeutil.TimeStamp `xorm:"created"`
UpdatedUnix timeutil.TimeStamp `xorm:"updated"`
HasRecentActivity bool `xorm:"-"`
HasUsed bool `xorm:"-"`
}
// AfterLoad is invoked from XORM after setting the values of all fields of this object.
func (key *DeployKey) AfterLoad() {
key.HasUsed = key.UpdatedUnix > key.CreatedUnix
key.HasRecentActivity = key.UpdatedUnix.AddDuration(7*24*time.Hour) > timeutil.TimeStampNow()
}
// GetContent gets associated public key content.
func (key *DeployKey) GetContent() error {
pkey, err := GetPublicKeyByID(key.KeyID)
if err != nil {
return err
}
key.Content = pkey.Content
return nil
}
// IsReadOnly checks if the key can only be used for read operations
func (key *DeployKey) IsReadOnly() bool {
return key.Mode == perm.AccessModeRead
}
func init() {
db.RegisterModel(new(DeployKey))
}
func checkDeployKey(e db.Engine, keyID, repoID int64, name string) error {
// Note: We want error detail, not just true or false here.
has, err := e.
Where("key_id = ? AND repo_id = ?", keyID, repoID).
Get(new(DeployKey))
if err != nil {
return err
} else if has {
return ErrDeployKeyAlreadyExist{keyID, repoID}
}
has, err = e.
Where("repo_id = ? AND name = ?", repoID, name).
Get(new(DeployKey))
if err != nil {
return err
} else if has {
return ErrDeployKeyNameAlreadyUsed{repoID, name}
}
return nil
}
// addDeployKey adds new key-repo relation.
func addDeployKey(e db.Engine, keyID, repoID int64, name, fingerprint string, mode perm.AccessMode) (*DeployKey, error) {
if err := checkDeployKey(e, keyID, repoID, name); err != nil {
return nil, err
}
key := &DeployKey{
KeyID: keyID,
RepoID: repoID,
Name: name,
Fingerprint: fingerprint,
Mode: mode,
}
_, err := e.Insert(key)
return key, err
}
// HasDeployKey returns true if public key is a deploy key of given repository.
func HasDeployKey(keyID, repoID int64) bool {
has, _ := db.GetEngine(db.DefaultContext).
Where("key_id = ? AND repo_id = ?", keyID, repoID).
Get(new(DeployKey))
return has
}
// AddDeployKey add new deploy key to database and authorized_keys file.
func AddDeployKey(repoID int64, name, content string, readOnly bool) (*DeployKey, error) {
fingerprint, err := calcFingerprint(content)
if err != nil {
return nil, err
}
accessMode := perm.AccessModeRead
if !readOnly {
accessMode = perm.AccessModeWrite
}
ctx, committer, err := db.TxContext()
if err != nil {
return nil, err
}
defer committer.Close()
sess := db.GetEngine(ctx)
pkey := &PublicKey{
Fingerprint: fingerprint,
}
has, err := sess.Get(pkey)
if err != nil {
return nil, err
}
if has {
if pkey.Type != KeyTypeDeploy {
return nil, ErrKeyAlreadyExist{0, fingerprint, ""}
}
} else {
// First time use this deploy key.
pkey.Mode = accessMode
pkey.Type = KeyTypeDeploy
pkey.Content = content
pkey.Name = name
if err = addKey(sess, pkey); err != nil {
return nil, fmt.Errorf("addKey: %v", err)
}
}
key, err := addDeployKey(sess, pkey.ID, repoID, name, pkey.Fingerprint, accessMode)
if err != nil {
return nil, err
}
return key, committer.Commit()
}
// GetDeployKeyByID returns deploy key by given ID.
func GetDeployKeyByID(id int64) (*DeployKey, error) {
return getDeployKeyByID(db.GetEngine(db.DefaultContext), id)
}
func getDeployKeyByID(e db.Engine, id int64) (*DeployKey, error) {
key := new(DeployKey)
has, err := e.ID(id).Get(key)
if err != nil {
return nil, err
} else if !has {
return nil, ErrDeployKeyNotExist{id, 0, 0}
}
return key, nil
}
// GetDeployKeyByRepo returns deploy key by given public key ID and repository ID.
func GetDeployKeyByRepo(keyID, repoID int64) (*DeployKey, error) {
return getDeployKeyByRepo(db.GetEngine(db.DefaultContext), keyID, repoID)
}
func getDeployKeyByRepo(e db.Engine, keyID, repoID int64) (*DeployKey, error) {
key := &DeployKey{
KeyID: keyID,
RepoID: repoID,
}
has, err := e.Get(key)
if err != nil {
return nil, err
} else if !has {
return nil, ErrDeployKeyNotExist{0, keyID, repoID}
}
return key, nil
}
// UpdateDeployKeyCols updates deploy key information in the specified columns.
func UpdateDeployKeyCols(key *DeployKey, cols ...string) error {
_, err := db.GetEngine(db.DefaultContext).ID(key.ID).Cols(cols...).Update(key)
return err
}
// UpdateDeployKey updates deploy key information.
func UpdateDeployKey(key *DeployKey) error {
_, err := db.GetEngine(db.DefaultContext).ID(key.ID).AllCols().Update(key)
return err
}
// DeleteDeployKey deletes deploy key from its repository authorized_keys file if needed.
func DeleteDeployKey(doer *user_model.User, id int64) error {
ctx, committer, err := db.TxContext()
if err != nil {
return err
}
defer committer.Close()
if err := deleteDeployKey(db.GetEngine(ctx), doer, id); err != nil {
return err
}
return committer.Commit()
}
func deleteDeployKey(sess db.Engine, doer *user_model.User, id int64) error {
key, err := getDeployKeyByID(sess, id)
if err != nil {
if IsErrDeployKeyNotExist(err) {
return nil
}
return fmt.Errorf("GetDeployKeyByID: %v", err)
}
// Check if user has access to delete this key.
if !doer.IsAdmin {
repo, err := getRepositoryByID(sess, key.RepoID)
if err != nil {
return fmt.Errorf("GetRepositoryByID: %v", err)
}
has, err := isUserRepoAdmin(sess, repo, doer)
if err != nil {
return fmt.Errorf("GetUserRepoPermission: %v", err)
} else if !has {
return ErrKeyAccessDenied{doer.ID, key.ID, "deploy"}
}
}
if _, err = sess.ID(key.ID).Delete(new(DeployKey)); err != nil {
return fmt.Errorf("delete deploy key [%d]: %v", key.ID, err)
}
// Check if this is the last reference to same key content.
has, err := sess.
Where("key_id = ?", key.KeyID).
Get(new(DeployKey))
if err != nil {
return err
} else if !has {
if err = deletePublicKeys(sess, key.KeyID); err != nil {
return err
}
// after deleted the public keys, should rewrite the public keys file
if err = rewriteAllPublicKeys(sess); err != nil {
return err
}
}
return nil
}
// ListDeployKeysOptions are options for ListDeployKeys
type ListDeployKeysOptions struct {
db.ListOptions
RepoID int64
KeyID int64
Fingerprint string
}
func (opt ListDeployKeysOptions) toCond() builder.Cond {
cond := builder.NewCond()
if opt.RepoID != 0 {
cond = cond.And(builder.Eq{"repo_id": opt.RepoID})
}
if opt.KeyID != 0 {
cond = cond.And(builder.Eq{"key_id": opt.KeyID})
}
if opt.Fingerprint != "" {
cond = cond.And(builder.Eq{"fingerprint": opt.Fingerprint})
}
return cond
}
// ListDeployKeys returns a list of deploy keys matching the provided arguments.
func ListDeployKeys(opts *ListDeployKeysOptions) ([]*DeployKey, error) {
return listDeployKeys(db.GetEngine(db.DefaultContext), opts)
}
func listDeployKeys(e db.Engine, opts *ListDeployKeysOptions) ([]*DeployKey, error) {
sess := e.Where(opts.toCond())
if opts.Page != 0 {
sess = db.SetSessionPagination(sess, opts)
keys := make([]*DeployKey, 0, opts.PageSize)
return keys, sess.Find(&keys)
}
keys := make([]*DeployKey, 0, 5)
return keys, sess.Find(&keys)
}
// CountDeployKeys returns count deploy keys matching the provided arguments.
func CountDeployKeys(opts *ListDeployKeysOptions) (int64, error) {
return db.GetEngine(db.DefaultContext).Where(opts.toCond()).Count(&DeployKey{})
}