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// Copyright 2020 The Gogs 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 db
import (
"fmt"
"os"
"path/filepath"
"strings"
"sync"
"github.com/jinzhu/gorm"
"github.com/pkg/errors"
"gopkg.in/ini.v1"
"gogs.io/gogs/internal/errutil"
"gogs.io/gogs/internal/osutil"
)
// loginSourceFilesStore is the in-memory interface for login source files stored on file system.
//
// NOTE: All methods are sorted in alphabetical order.
type loginSourceFilesStore interface {
// GetByID returns a clone of login source by given ID.
GetByID(id int64) (*LoginSource, error)
// Len returns number of login sources.
Len() int
// List returns a list of login sources filtered by options.
List(opts ListLoginSourceOpts) []*LoginSource
// Update updates in-memory copy of the authentication source.
Update(source *LoginSource)
}
var _ loginSourceFilesStore = (*loginSourceFiles)(nil)
// loginSourceFiles contains authentication sources configured and loaded from local files.
type loginSourceFiles struct {
sync.RWMutex
sources []*LoginSource
}
var _ errutil.NotFound = (*ErrLoginSourceNotExist)(nil)
type ErrLoginSourceNotExist struct {
args errutil.Args
}
func IsErrLoginSourceNotExist(err error) bool {
_, ok := err.(ErrLoginSourceNotExist)
return ok
}
func (err ErrLoginSourceNotExist) Error() string {
return fmt.Sprintf("login source does not exist: %v", err.args)
}
func (ErrLoginSourceNotExist) NotFound() bool {
return true
}
func (s *loginSourceFiles) GetByID(id int64) (*LoginSource, error) {
s.RLock()
defer s.RUnlock()
for _, source := range s.sources {
if source.ID == id {
return source, nil
}
}
return nil, ErrLoginSourceNotExist{args: errutil.Args{"id": id}}
}
func (s *loginSourceFiles) Len() int {
s.RLock()
defer s.RUnlock()
return len(s.sources)
}
func (s *loginSourceFiles) List(opts ListLoginSourceOpts) []*LoginSource {
s.RLock()
defer s.RUnlock()
list := make([]*LoginSource, 0, s.Len())
for _, source := range s.sources {
if opts.OnlyActivated && !source.IsActived {
continue
}
list = append(list, source)
}
return list
}
func (s *loginSourceFiles) Update(source *LoginSource) {
s.Lock()
defer s.Unlock()
source.Updated = gorm.NowFunc()
for _, old := range s.sources {
if old.ID == source.ID {
*old = *source
} else if source.IsDefault {
old.IsDefault = false
}
}
}
// loadLoginSourceFiles loads login sources from file system.
func loadLoginSourceFiles(authdPath string) (loginSourceFilesStore, error) {
if !osutil.IsDir(authdPath) {
return &loginSourceFiles{}, nil
}
store := &loginSourceFiles{}
return store, filepath.Walk(authdPath, func(path string, info os.FileInfo, err error) error {
if err != nil {
return err
}
if path == authdPath || !strings.HasSuffix(path, ".conf") {
return nil
} else if info.IsDir() {
return filepath.SkipDir
}
authSource, err := ini.Load(path)
if err != nil {
return errors.Wrap(err, "load file")
}
authSource.NameMapper = ini.TitleUnderscore
// Set general attributes
s := authSource.Section("")
loginSource := &LoginSource{
ID: s.Key("id").MustInt64(),
Name: s.Key("name").String(),
IsActived: s.Key("is_activated").MustBool(),
IsDefault: s.Key("is_default").MustBool(),
File: &loginSourceFile{
path: path,
file: authSource,
},
}
fi, err := os.Stat(path)
if err != nil {
return errors.Wrap(err, "stat file")
}
loginSource.Updated = fi.ModTime()
// Parse authentication source file
authType := s.Key("type").String()
switch authType {
case "ldap_bind_dn":
loginSource.Type = LoginLDAP
loginSource.Config = &LDAPConfig{}
case "ldap_simple_auth":
loginSource.Type = LoginDLDAP
loginSource.Config = &LDAPConfig{}
case "smtp":
loginSource.Type = LoginSMTP
loginSource.Config = &SMTPConfig{}
case "pam":
loginSource.Type = LoginPAM
loginSource.Config = &PAMConfig{}
case "github":
loginSource.Type = LoginGitHub
loginSource.Config = &GitHubConfig{}
default:
return fmt.Errorf("unknown type %q", authType)
}
if err = authSource.Section("config").MapTo(loginSource.Config); err != nil {
return errors.Wrap(err, `map "config" section`)
}
store.sources = append(store.sources, loginSource)
return nil
})
}
// loginSourceFileStore is the persistent interface for a login source file.
type loginSourceFileStore interface {
// SetGeneral sets new value to the given key in the general (default) section.
SetGeneral(name, value string)
// SetConfig sets new values to the "config" section.
SetConfig(cfg interface{}) error
// Save persists values to file system.
Save() error
}
var _ loginSourceFileStore = (*loginSourceFile)(nil)
type loginSourceFile struct {
path string
file *ini.File
}
func (f *loginSourceFile) SetGeneral(name, value string) {
f.file.Section("").Key(name).SetValue(value)
}
func (f *loginSourceFile) SetConfig(cfg interface{}) error {
return f.file.Section("config").ReflectFrom(cfg)
}
func (f *loginSourceFile) Save() error {
return f.file.SaveTo(f.path)
}
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