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gitea/models/login.go

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// Copyright github.com/juju2013. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
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package models
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import (
"encoding/json"
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"errors"
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"strings"
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"time"
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"github.com/go-xorm/core"
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"github.com/go-xorm/xorm"
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"github.com/gogits/gogs/modules/auth/ldap"
)
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// Login types.
const (
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LT_NOTYPE = iota
LT_PLAIN
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LT_LDAP
LT_SMTP
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)
var (
ErrAuthenticationAlreadyExist = errors.New("Authentication already exist")
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ErrAuthenticationNotExist = errors.New("Authentication does not exist")
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ErrAuthenticationUserUsed = errors.New("Authentication has been used by some users")
)
var LoginTypes = map[int]string{
LT_LDAP: "LDAP",
LT_SMTP: "SMTP",
}
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var _ core.Conversion = &LDAPConfig{}
type LDAPConfig struct {
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ldap.Ldapsource
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}
// implement
func (cfg *LDAPConfig) FromDB(bs []byte) error {
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return json.Unmarshal(bs, &cfg.Ldapsource)
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}
func (cfg *LDAPConfig) ToDB() ([]byte, error) {
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return json.Marshal(cfg.Ldapsource)
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}
type LoginSource struct {
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Id int64
Type int
Name string `xorm:"unique"`
IsActived bool `xorm:"not null default false"`
Cfg core.Conversion `xorm:"TEXT"`
Created time.Time `xorm:"created"`
Updated time.Time `xorm:"updated"`
AllowAutoRegisted bool `xorm:"not null default false"`
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}
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func (source *LoginSource) TypeString() string {
return LoginTypes[source.Type]
}
func (source *LoginSource) LDAP() *LDAPConfig {
return source.Cfg.(*LDAPConfig)
}
// for xorm callback
func (source *LoginSource) BeforeSet(colName string, val xorm.Cell) {
if colName == "type" {
ty := (*val).(int64)
switch ty {
case LT_LDAP:
source.Cfg = new(LDAPConfig)
}
}
}
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func GetAuths() ([]*LoginSource, error) {
var auths = make([]*LoginSource, 0)
err := orm.Find(&auths)
return auths, err
}
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func GetLoginSourceById(id int64) (*LoginSource, error) {
source := new(LoginSource)
has, err := orm.Id(id).Get(source)
if err != nil {
return nil, err
}
if !has {
return nil, ErrAuthenticationNotExist
}
return source, nil
}
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func AddLDAPSource(name string, cfg *LDAPConfig) error {
_, err := orm.Insert(&LoginSource{Type: LT_LDAP,
Name: name,
IsActived: true,
Cfg: cfg,
})
return err
}
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func UpdateLDAPSource(source *LoginSource) error {
_, err := orm.AllCols().Id(source.Id).Update(source)
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return err
}
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func DelLoginSource(source *LoginSource) error {
cnt, err := orm.Count(&User{LoginSource: source.Id})
if err != nil {
return err
}
if cnt > 0 {
return ErrAuthenticationUserUsed
}
_, err = orm.Id(source.Id).Delete(&LoginSource{})
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return err
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}
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// login a user
func LoginUser(uname, passwd string) (*User, error) {
var u *User
var emailLogin bool
if strings.Contains(uname, "@") {
u = &User{Email: uname}
emailLogin = true
} else {
u = &User{LowerName: strings.ToLower(uname)}
}
has, err := orm.Get(u)
if err != nil {
return nil, err
}
// if email login, then we cannot auto register
if emailLogin {
if !has {
return nil, ErrUserNotExist
}
}
if u.LoginType == LT_NOTYPE {
u.LoginType = LT_PLAIN
}
// for plain login, user must have existed.
if u.LoginType == LT_PLAIN {
if !has {
return nil, ErrUserNotExist
}
newUser := &User{Passwd: passwd, Salt: u.Salt}
newUser.EncodePasswd()
if u.Passwd != newUser.Passwd {
return nil, ErrUserNotExist
}
return u, nil
} else {
if !has {
var sources []LoginSource
cond := &LoginSource{IsActived: true, AllowAutoRegisted: true}
err = orm.UseBool().Find(&sources, cond)
if err != nil {
return nil, err
}
for _, source := range sources {
u, err := LoginUserLdapSource(nil, u.LoginName, passwd,
source.Id, source.Cfg.(*LDAPConfig), true)
if err == nil {
return u, err
}
}
return nil, ErrUserNotExist
}
var source LoginSource
hasSource, err := orm.Id(u.LoginSource).Get(&source)
if err != nil {
return nil, err
}
if !hasSource {
return nil, ErrLoginSourceNotExist
}
if !source.IsActived {
return nil, ErrLoginSourceNotActived
}
switch u.LoginType {
case LT_LDAP:
return LoginUserLdapSource(u, u.LoginName, passwd,
source.Id, source.Cfg.(*LDAPConfig), false)
case LT_SMTP:
}
return nil, ErrUnsupportedLoginType
}
}
// Query if name/passwd can login against the LDAP direcotry pool
// Create a local user if success
// Return the same LoginUserPlain semantic
func LoginUserLdapSource(user *User, name, passwd string, sourceId int64, cfg *LDAPConfig, autoRegister bool) (*User, error) {
mail, logged := cfg.Ldapsource.SearchEntry(name, passwd)
if !logged {
// user not in LDAP, do nothing
return nil, ErrUserNotExist
}
if !autoRegister {
return user, nil
}
// fake a local user creation
user = &User{
LowerName: strings.ToLower(name),
Name: strings.ToLower(name),
LoginType: LT_LDAP,
LoginSource: sourceId,
LoginName: name,
IsActive: true,
Passwd: passwd,
Email: mail,
}
return RegisterUser(user)
}