|
@@ -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)
|
|
|
-}
|
|
|
+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
|
|
|
+ }
|
|
|
|
|
|
-//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 {
|
|
|
+ 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 valide and in the specific filter
|
|
|
-func (ls Ldapsource) SearchEntry(name, passwd string) (string, string, string, string, bool) {
|
|
|
+// 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
|
|
|
+ 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.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
|
|
|
+ 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
|
|
|
}
|
|
|
- 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))
|