forked from forgejo/forgejo
Significantly enhanced LDAP support in Gogs.
This commit is contained in:
Sergio Benitez
parent
631c85ba4f
commit
7d84d4a8f0
23 changed files with 295 additions and 250 deletions
|
|
@ -19,82 +19,114 @@ type Ldapsource struct {
|
|||
Host string // LDAP host
|
||||
Port int // port number
|
||||
UseSSL bool // Use SSL
|
||||
BaseDN string // Base DN
|
||||
AttributeUsername string // Username attribute
|
||||
BindDN string // DN to bind with
|
||||
BindPassword string // Bind DN password
|
||||
UserBase string // Base search path for users
|
||||
AttributeName string // First name attribute
|
||||
AttributeSurname string // Surname attribute
|
||||
AttributeMail string // E-mail attribute
|
||||
Filter string // Query filter to validate entry
|
||||
MsAdSAFormat string // in the case of MS AD Simple Authen, the format to use (see: http://msdn.microsoft.com/en-us/library/cc223499.aspx)
|
||||
Enabled bool // if this source is disabled
|
||||
}
|
||||
|
||||
//Global LDAP directory pool
|
||||
var (
|
||||
Authensource []Ldapsource
|
||||
)
|
||||
|
||||
// Add a new source (LDAP directory) to the global pool
|
||||
func AddSource(name string, host string, port int, usessl bool, basedn string, attribcn string, attribname string, attribsn string, attribmail string, filter string, msadsaformat string) {
|
||||
ldaphost := Ldapsource{name, host, port, usessl, basedn, attribcn, attribname, attribsn, attribmail, filter, msadsaformat, true}
|
||||
Authensource = append(Authensource, ldaphost)
|
||||
}
|
||||
|
||||
//LoginUser : try to login an user to LDAP sources, return requested (attribute,true) if ok, ("",false) other wise
|
||||
//First match wins
|
||||
//Returns first attribute if exists
|
||||
func LoginUser(name, passwd string) (cn, fn, sn, mail string, r bool) {
|
||||
r = false
|
||||
for _, ls := range Authensource {
|
||||
cn, fn, sn, mail, r = ls.SearchEntry(name, passwd)
|
||||
if r {
|
||||
return
|
||||
}
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// searchEntry : search an LDAP source if an entry (name, passwd) is valide and in the specific filter
|
||||
func (ls Ldapsource) SearchEntry(name, passwd string) (string, string, string, string, bool) {
|
||||
func (ls Ldapsource) FindUserDN(name string) (userDN string, success bool) {
|
||||
userDN = ""
|
||||
success = false
|
||||
l, err := ldapDial(ls)
|
||||
if err != nil {
|
||||
log.Error(4, "LDAP Connect error, %s:%v", ls.Host, err)
|
||||
ls.Enabled = false
|
||||
return "", "", "", "", false
|
||||
return
|
||||
}
|
||||
|
||||
defer l.Close()
|
||||
log.Trace("Search for LDAP user: %s", name)
|
||||
if ls.BindDN != "" && ls.BindPassword != "" {
|
||||
err = l.Bind(ls.BindDN, ls.BindPassword)
|
||||
if err != nil {
|
||||
log.Debug("Failed to bind as BindDN: %s, %s", ls.BindDN, err.Error())
|
||||
return
|
||||
}
|
||||
log.Trace("Bound as BindDN %s", ls.BindDN)
|
||||
} else {
|
||||
log.Trace("Proceeding with anonymous LDAP search.")
|
||||
}
|
||||
|
||||
// A search for the user.
|
||||
userFilter := fmt.Sprintf(ls.Filter, name)
|
||||
log.Trace("Searching using filter %s", userFilter)
|
||||
search := ldap.NewSearchRequest(
|
||||
ls.UserBase, ldap.ScopeWholeSubtree, ldap.NeverDerefAliases, 0, 0,
|
||||
false, userFilter, []string{}, nil)
|
||||
|
||||
// Ensure we found a user
|
||||
sr, err := l.Search(search)
|
||||
if err != nil || len(sr.Entries) < 1 {
|
||||
log.Debug("Failed search using filter %s: %s", userFilter, err.Error())
|
||||
return
|
||||
} else if len(sr.Entries) > 1 {
|
||||
log.Debug("Filter '%s' returned more than one user.", userFilter)
|
||||
return
|
||||
}
|
||||
|
||||
userDN = sr.Entries[0].DN
|
||||
if userDN == "" {
|
||||
log.Error(4, "LDAP search was succesful, but found no DN!")
|
||||
return
|
||||
}
|
||||
|
||||
success = true
|
||||
return
|
||||
}
|
||||
|
||||
// searchEntry : search an LDAP source if an entry (name, passwd) is valid and in the specific filter
|
||||
func (ls Ldapsource) SearchEntry(name, passwd string) (string, string, string, bool) {
|
||||
userDN, found := ls.FindUserDN(name)
|
||||
if !found {
|
||||
return "", "", "", false
|
||||
}
|
||||
|
||||
l, err := ldapDial(ls)
|
||||
if err != nil {
|
||||
log.Error(4, "LDAP Connect error, %s:%v", ls.Host, err)
|
||||
ls.Enabled = false
|
||||
return "", "", "", false
|
||||
}
|
||||
|
||||
defer l.Close()
|
||||
|
||||
nx := fmt.Sprintf(ls.MsAdSAFormat, name)
|
||||
err = l.Bind(nx, passwd)
|
||||
log.Trace("Binding with userDN: %s", userDN)
|
||||
err = l.Bind(userDN, passwd)
|
||||
if err != nil {
|
||||
log.Debug("LDAP Authan failed for %s, reason: %s", nx, err.Error())
|
||||
return "", "", "", "", false
|
||||
log.Debug("LDAP auth. failed for %s, reason: %s", userDN, err.Error())
|
||||
return "", "", "", false
|
||||
}
|
||||
|
||||
log.Trace("Bound successfully with userDN: %s", userDN)
|
||||
userFilter := fmt.Sprintf(ls.Filter, name)
|
||||
search := ldap.NewSearchRequest(
|
||||
ls.BaseDN,
|
||||
ldap.ScopeWholeSubtree, ldap.NeverDerefAliases, 0, 0, false,
|
||||
fmt.Sprintf(ls.Filter, name),
|
||||
[]string{ls.AttributeUsername, ls.AttributeName, ls.AttributeSurname, ls.AttributeMail},
|
||||
userDN, ldap.ScopeWholeSubtree, ldap.NeverDerefAliases, 0, 0, false, userFilter,
|
||||
[]string{ls.AttributeName, ls.AttributeSurname, ls.AttributeMail},
|
||||
nil)
|
||||
|
||||
sr, err := l.Search(search)
|
||||
if err != nil {
|
||||
log.Debug("LDAP Authen OK but not in filter %s", name)
|
||||
return "", "", "", "", false
|
||||
log.Error(4, "LDAP Search failed unexpectedly! (%s)", err.Error())
|
||||
return "", "", "", false
|
||||
} else if len(sr.Entries) < 1 {
|
||||
log.Error(4, "LDAP Search failed unexpectedly! (0 entries)")
|
||||
return "", "", "", false
|
||||
}
|
||||
log.Debug("LDAP Authen OK: %s", name)
|
||||
if len(sr.Entries) > 0 {
|
||||
cn := sr.Entries[0].GetAttributeValue(ls.AttributeUsername)
|
||||
name := sr.Entries[0].GetAttributeValue(ls.AttributeName)
|
||||
sn := sr.Entries[0].GetAttributeValue(ls.AttributeSurname)
|
||||
mail := sr.Entries[0].GetAttributeValue(ls.AttributeMail)
|
||||
return cn, name, sn, mail, true
|
||||
}
|
||||
return "", "", "", "", true
|
||||
|
||||
name_attr := sr.Entries[0].GetAttributeValue(ls.AttributeName)
|
||||
sn_attr := sr.Entries[0].GetAttributeValue(ls.AttributeSurname)
|
||||
mail_attr := sr.Entries[0].GetAttributeValue(ls.AttributeMail)
|
||||
return name_attr, sn_attr, mail_attr, true
|
||||
}
|
||||
|
||||
func ldapDial(ls Ldapsource) (*ldap.Conn, error) {
|
||||
if ls.UseSSL {
|
||||
log.Debug("Using TLS for LDAP")
|
||||
return ldap.DialTLS("tcp", fmt.Sprintf("%s:%d", ls.Host, ls.Port), nil)
|
||||
} else {
|
||||
return ldap.Dial("tcp", fmt.Sprintf("%s:%d", ls.Host, ls.Port))
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue