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LDAP: Optional user name attribute specification

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

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) {