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LDAP: Optional user name attribute specification

Browse source 
Consider following LDAP search query example:

    (&(objectClass=Person)(|(uid=%s)(mail=%s)))

Right now on first login attempt Gogs will use the text supplied on login form
as the newly created user name. In example query above the text matches against
both e-mail or user name. So if user puts the e-mail then the new Gogs user
name will be e-mail which may be undesired.

Using optional user name attribute setting we can explicitly say we want Gogs
user name to be certain LDAP attribute eg. `uid`, so even user will use e-mail
to login 1st time, the new account will receive correct user name.
This commit is contained in:
Adam Strzelecki 2015-12-01 14:49:49 +01:00
parent 7ccce4d110
commit 573305f3d3
7 changed files with 97 additions and 67 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
conf/locale/locale_en-US.ini
View file

@ -878,6 +878,8 @@ auths.bind_password = Bind Password
auths.bind_password_helper = Warning: This password is stored in plain text. Do not use a high privileged account.
auths.user_base = User Search Base
auths.user_dn = User DN
auths.attribute_username = Username attribute
auths.attribute_username_placeholder = Leave empty to use sign-in form field value for user name.
auths.attribute_name = First name attribute
auths.attribute_surname = Surname attribute
auths.attribute_mail = E-mail attribute

28
models/login.go
View file

@ -225,16 +225,16 @@ func DeleteSource(source *LoginSource) error {
// |_______ \/_______ /\____|__ /____|
// \/ \/ \/
// LoginUserLDAPSource queries if name/passwd can login against the LDAP directory pool,
// LoginUserLDAPSource queries if loginName/passwd can login against the LDAP directory pool,
// and create a local user if success when enabled.
// It returns the same LoginUserPlain semantic.
func LoginUserLDAPSource(u *User, name, passwd string, source *LoginSource, autoRegister bool) (*User, error) {
func LoginUserLDAPSource(u *User, loginName, passwd string, source *LoginSource, autoRegister bool) (*User, error) {
cfg := source.Cfg.(*LDAPConfig)
directBind := (source.Type == DLDAP)
fn, sn, mail, admin, logged := cfg.SearchEntry(name, passwd, directBind)
name, fn, sn, mail, admin, logged := cfg.SearchEntry(loginName, passwd, directBind)
if !logged {
// User not in LDAP, do nothing
return nil, ErrUserNotExist{0, name}
return nil, ErrUserNotExist{0, loginName}
}
if !autoRegister {
@ -242,6 +242,9 @@ func LoginUserLDAPSource(u *User, name, passwd string, source *LoginSource, auto
}
// Fallback.
if len(name) == 0 {
name = loginName
}
if len(mail) == 0 {
mail = fmt.Sprintf("%s@localhost", name)
}
@ -249,10 +252,10 @@ func LoginUserLDAPSource(u *User, name, passwd string, source *LoginSource, auto
u = &User{
LowerName: strings.ToLower(name),
Name: name,
FullName: strings.TrimSpace(fn + " " + sn),
FullName: composeFullName(fn, sn, name),
LoginType: source.Type,
LoginSource: source.ID,
LoginName: name,
LoginName: loginName,
Email: mail,
IsAdmin: admin,
IsActive: true,
@ -260,6 +263,19 @@ func LoginUserLDAPSource(u *User, name, passwd string, source *LoginSource, auto
return u, CreateUser(u)
}
func composeFullName(firstName, surename, userName string) string {
switch {
case len(firstName) == 0 && len(surename) == 0:
return userName
case len(firstName) == 0:
return surename
case len(surename) == 0:
return firstName
default:
return firstName + " " + surename
}
}
// _________ __________________________
// / _____/ / \__ ___/\______ \
// \_____ \ / \ / \| | | ___/

45
modules/auth/auth_form.go
View file

@ -10,28 +10,29 @@ import (
)
type AuthenticationForm struct {
ID int64
Type int `binding:"Range(2,5)"`
Name string `binding:"Required;MaxSize(30)"`
Host string
Port int
BindDN string
BindPassword string
UserBase string
UserDN string `form:"user_dn"`
AttributeName string
AttributeSurname string
AttributeMail string
Filter string
AdminFilter string
IsActive bool
SMTPAuth string
SMTPHost string
SMTPPort int
AllowedDomains string
TLS bool
SkipVerify bool
PAMServiceName string `form:"pam_service_name"`
ID int64
Type int `binding:"Range(2,5)"`
Name string `binding:"Required;MaxSize(30)"`
Host string
Port int
BindDN string
BindPassword string
UserBase string
UserDN string `form:"user_dn"`
AttributeUsername string
AttributeName string
AttributeSurname string
AttributeMail string
Filter string
AdminFilter string
IsActive bool
SMTPAuth string
SMTPHost string
SMTPPort int
AllowedDomains string
TLS bool
SkipVerify bool
PAMServiceName string `form:"pam_service_name"`
}
func (f *AuthenticationForm) Validate(ctx *macaron.Context, errs binding.Errors) binding.Errors {

50
modules/auth/ldap/ldap.go
View file

@ -18,21 +18,22 @@ import (
// Basic LDAP authentication service
type Source struct {
Name string // canonical name (ie. corporate.ad)
Host string // LDAP host
Port int // port number
UseSSL bool // Use SSL
SkipVerify bool
BindDN string // DN to bind with
BindPassword string // Bind DN password
UserBase string // Base search path for users
UserDN string // Template for the DN of the user for simple auth
AttributeName string // First name attribute
AttributeSurname string // Surname attribute
AttributeMail string // E-mail attribute
Filter string // Query filter to validate entry
AdminFilter string // Query filter to check if user is admin
Enabled bool // if this source is disabled
Name string // canonical name (ie. corporate.ad)
Host string // LDAP host
Port int // port number
UseSSL bool // Use SSL
SkipVerify bool
BindDN string // DN to bind with
BindPassword string // Bind DN password
UserBase string // Base search path for users
UserDN string // Template for the DN of the user for simple auth
AttributeUsername string // Username attribute
AttributeName string // First name attribute
AttributeSurname string // Surname attribute
AttributeMail string // E-mail attribute
Filter string // Query filter to validate entry
AdminFilter string // Query filter to check if user is admin
Enabled bool // if this source is disabled
}
func (ls *Source) sanitizedUserQuery(username string) (string, bool) {
@ -109,7 +110,7 @@ func (ls *Source) FindUserDN(name string) (string, bool) {
}
// searchEntry : search an LDAP source if an entry (name, passwd) is valid and in the specific filter
func (ls *Source) SearchEntry(name, passwd string, directBind bool) (string, string, string, bool, bool) {
func (ls *Source) SearchEntry(name, passwd string, directBind bool) (string, string, string, string, bool, bool) {
var userDN string
if directBind {
log.Trace("LDAP will bind directly via UserDN template: %s", ls.UserDN)
@ -117,7 +118,7 @@ func (ls *Source) SearchEntry(name, passwd string, directBind bool) (string, str
var ok bool
userDN, ok = ls.sanitizedUserDN(name)
if !ok {
return "", "", "", false, false
return "", "", "", "", false, false
}
} else {
log.Trace("LDAP will use BindDN.")
@ -125,7 +126,7 @@ func (ls *Source) SearchEntry(name, passwd string, directBind bool) (string, str
var found bool
userDN, found = ls.FindUserDN(name)
if !found {
return "", "", "", false, false
return "", "", "", "", false, false
}
}
@ -133,7 +134,7 @@ func (ls *Source) SearchEntry(name, passwd string, directBind bool) (string, str
if err != nil {
log.Error(4, "LDAP Connect error (%s): %v", ls.Host, err)
ls.Enabled = false
return "", "", "", false, false
return "", "", "", "", false, false
}
defer l.Close()
@ -141,13 +142,13 @@ func (ls *Source) SearchEntry(name, passwd string, directBind bool) (string, str
err = l.Bind(userDN, passwd)
if err != nil {
log.Debug("LDAP auth. failed for %s, reason: %v", userDN, err)
return "", "", "", false, false
return "", "", "", "", false, false
}
log.Trace("Bound successfully with userDN: %s", userDN)
userFilter, ok := ls.sanitizedUserQuery(name)
if !ok {
return "", "", "", false, false
return "", "", "", "", false, false
}
search := ldap.NewSearchRequest(
@ -158,7 +159,7 @@ func (ls *Source) SearchEntry(name, passwd string, directBind bool) (string, str
sr, err := l.Search(search)
if err != nil {
log.Error(4, "LDAP Search failed unexpectedly! (%v)", err)
return "", "", "", false, false
return "", "", "", "", false, false
} else if len(sr.Entries) < 1 {
if directBind {
log.Error(4, "User filter inhibited user login.")
@ -166,9 +167,10 @@ func (ls *Source) SearchEntry(name, passwd string, directBind bool) (string, str
log.Error(4, "LDAP Search failed unexpectedly! (0 entries)")
}
return "", "", "", false, false
return "", "", "", "", false, false
}
username_attr := sr.Entries[0].GetAttributeValue(ls.AttributeUsername)
name_attr := sr.Entries[0].GetAttributeValue(ls.AttributeName)
sn_attr := sr.Entries[0].GetAttributeValue(ls.AttributeSurname)
mail_attr := sr.Entries[0].GetAttributeValue(ls.AttributeMail)
@ -190,7 +192,7 @@ func (ls *Source) SearchEntry(name, passwd string, directBind bool) (string, str
}
}
return name_attr, sn_attr, mail_attr, admin_attr, true
return username_attr, name_attr, sn_attr, mail_attr, admin_attr, true
}
func ldapDial(ls *Source) (*ldap.Conn, error) {

31
routers/admin/auths.go
View file

@ -68,21 +68,22 @@ func NewAuthSource(ctx *middleware.Context) {
func parseLDAPConfig(form auth.AuthenticationForm) *models.LDAPConfig {
return &models.LDAPConfig{
Source: &ldap.Source{
Name: form.Name,
Host: form.Host,
Port: form.Port,
UseSSL: form.TLS,
SkipVerify: form.SkipVerify,
BindDN: form.BindDN,
UserDN: form.UserDN,
BindPassword: form.BindPassword,
UserBase: form.UserBase,
AttributeName: form.AttributeName,
AttributeSurname: form.AttributeSurname,
AttributeMail: form.AttributeMail,
Filter: form.Filter,
AdminFilter: form.AdminFilter,
Enabled: true,
Name: form.Name,
Host: form.Host,
Port: form.Port,
UseSSL: form.TLS,
SkipVerify: form.SkipVerify,
BindDN: form.BindDN,
UserDN: form.UserDN,
BindPassword: form.BindPassword,
UserBase: form.UserBase,
AttributeUsername: form.AttributeUsername,
AttributeName: form.AttributeName,
AttributeSurname: form.AttributeSurname,
AttributeMail: form.AttributeMail,
Filter: form.Filter,
AdminFilter: form.AdminFilter,
Enabled: true,
},
}
}

4
templates/admin/auth/edit.tmpl
View file

@ -63,6 +63,10 @@
<label for="admin_filter">{{.i18n.Tr "admin.auths.admin_filter"}}</label>
<input id="admin_filter" name="admin_filter" value="{{$cfg.AdminFilter}}">
</div>
<div class="field">
<label for="attribute_username">{{.i18n.Tr "admin.auths.attribute_username"}}</label>
<input id="attribute_username" name="attribute_username" value="{{$cfg.AttributeUsername}}" placeholder="{{.i18n.Tr "admin.auths.attribute_username_placeholder"}}">
</div>
<div class="field">
<label for="attribute_name">{{.i18n.Tr "admin.auths.attribute_name"}}</label>
<input id="attribute_name" name="attribute_name" value="{{$cfg.AttributeName}}">

4
templates/admin/auth/new.tmpl
View file

@ -66,6 +66,10 @@
<label for="admin_filter">{{.i18n.Tr "admin.auths.admin_filter"}}</label>
<input id="admin_filter" name="admin_filter" value="{{.admin_filter}}">
</div>
<div class="field">
<label for="attribute_username">{{.i18n.Tr "admin.auths.attribute_username"}}</label>
<input id="attribute_username" name="attribute_username" value="{{.attribute_username}}" placeholder="{{.i18n.Tr "admin.auths.attribute_username_placeholder"}}">
</div>
<div class="field">
<label for="attribute_name">{{.i18n.Tr "admin.auths.attribute_name"}}</label>
<input id="attribute_name" name="attribute_name" value="{{.attribute_name}}">