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|
package ldap_test
import (
"crypto/tls"
"fmt"
"log"
"gopkg.in/ldap.v2"
)
// ExampleConn_Bind demonstrates how to bind a connection to an ldap user
// allowing access to restricted attrabutes that user has access to
func ExampleConn_Bind() {
l, err := ldap.Dial("tcp", fmt.Sprintf("%s:%d", "ldap.example.com", 389))
if err != nil {
log.Fatal(err)
}
defer l.Close()
err = l.Bind("cn=read-only-admin,dc=example,dc=com", "password")
if err != nil {
log.Fatal(err)
}
}
// ExampleConn_Search demonstrates how to use the search interface
func ExampleConn_Search() {
l, err := ldap.Dial("tcp", fmt.Sprintf("%s:%d", "ldap.example.com", 389))
if err != nil {
log.Fatal(err)
}
defer l.Close()
searchRequest := ldap.NewSearchRequest(
"dc=example,dc=com", // The base dn to search
ldap.ScopeWholeSubtree, ldap.NeverDerefAliases, 0, 0, false,
"(&(objectClass=organizationalPerson))", // The filter to apply
[]string{"dn", "cn"}, // A list attributes to retrieve
nil,
)
sr, err := l.Search(searchRequest)
if err != nil {
log.Fatal(err)
}
for _, entry := range sr.Entries {
fmt.Printf("%s: %v\n", entry.DN, entry.GetAttributeValue("cn"))
}
}
// ExampleStartTLS demonstrates how to start a TLS connection
func ExampleConn_StartTLS() {
l, err := ldap.Dial("tcp", fmt.Sprintf("%s:%d", "ldap.example.com", 389))
if err != nil {
log.Fatal(err)
}
defer l.Close()
// Reconnect with TLS
err = l.StartTLS(&tls.Config{InsecureSkipVerify: true})
if err != nil {
log.Fatal(err)
}
// Opertations via l are now encrypted
}
// ExampleConn_Compare demonstrates how to comapre an attribute with a value
func ExampleConn_Compare() {
l, err := ldap.Dial("tcp", fmt.Sprintf("%s:%d", "ldap.example.com", 389))
if err != nil {
log.Fatal(err)
}
defer l.Close()
matched, err := l.Compare("cn=user,dc=example,dc=com", "uid", "someuserid")
if err != nil {
log.Fatal(err)
}
fmt.Println(matched)
}
func ExampleConn_PasswordModify_admin() {
l, err := ldap.Dial("tcp", fmt.Sprintf("%s:%d", "ldap.example.com", 389))
if err != nil {
log.Fatal(err)
}
defer l.Close()
err = l.Bind("cn=admin,dc=example,dc=com", "password")
if err != nil {
log.Fatal(err)
}
passwordModifyRequest := ldap.NewPasswordModifyRequest("cn=user,dc=example,dc=com", "", "NewPassword")
_, err = l.PasswordModify(passwordModifyRequest)
if err != nil {
log.Fatalf("Password could not be changed: %s", err.Error())
}
}
func ExampleConn_PasswordModify_generatedPassword() {
l, err := ldap.Dial("tcp", fmt.Sprintf("%s:%d", "ldap.example.com", 389))
if err != nil {
log.Fatal(err)
}
defer l.Close()
err = l.Bind("cn=user,dc=example,dc=com", "password")
if err != nil {
log.Fatal(err)
}
passwordModifyRequest := ldap.NewPasswordModifyRequest("", "OldPassword", "")
passwordModifyResponse, err := l.PasswordModify(passwordModifyRequest)
if err != nil {
log.Fatalf("Password could not be changed: %s", err.Error())
}
generatedPassword := passwordModifyResponse.GeneratedPassword
log.Printf("Generated password: %s\n", generatedPassword)
}
func ExampleConn_PasswordModify_setNewPassword() {
l, err := ldap.Dial("tcp", fmt.Sprintf("%s:%d", "ldap.example.com", 389))
if err != nil {
log.Fatal(err)
}
defer l.Close()
err = l.Bind("cn=user,dc=example,dc=com", "password")
if err != nil {
log.Fatal(err)
}
passwordModifyRequest := ldap.NewPasswordModifyRequest("", "OldPassword", "NewPassword")
_, err = l.PasswordModify(passwordModifyRequest)
if err != nil {
log.Fatalf("Password could not be changed: %s", err.Error())
}
}
func ExampleConn_Modify() {
l, err := ldap.Dial("tcp", fmt.Sprintf("%s:%d", "ldap.example.com", 389))
if err != nil {
log.Fatal(err)
}
defer l.Close()
// Add a description, and replace the mail attributes
modify := ldap.NewModifyRequest("cn=user,dc=example,dc=com")
modify.Add("description", []string{"An example user"})
modify.Replace("mail", []string{"user@example.org"})
err = l.Modify(modify)
if err != nil {
log.Fatal(err)
}
}
// Example User Authentication shows how a typical application can verify a login attempt
func Example_userAuthentication() {
// The username and password we want to check
username := "someuser"
password := "userpassword"
bindusername := "readonly"
bindpassword := "password"
l, err := ldap.Dial("tcp", fmt.Sprintf("%s:%d", "ldap.example.com", 389))
if err != nil {
log.Fatal(err)
}
defer l.Close()
// Reconnect with TLS
err = l.StartTLS(&tls.Config{InsecureSkipVerify: true})
if err != nil {
log.Fatal(err)
}
// First bind with a read only user
err = l.Bind(bindusername, bindpassword)
if err != nil {
log.Fatal(err)
}
// Search for the given username
searchRequest := ldap.NewSearchRequest(
"dc=example,dc=com",
ldap.ScopeWholeSubtree, ldap.NeverDerefAliases, 0, 0, false,
fmt.Sprintf("(&(objectClass=organizationalPerson)&(uid=%s))", username),
[]string{"dn"},
nil,
)
sr, err := l.Search(searchRequest)
if err != nil {
log.Fatal(err)
}
if len(sr.Entries) != 1 {
log.Fatal("User does not exist or too many entries returned")
}
userdn := sr.Entries[0].DN
// Bind as the user to verify their password
err = l.Bind(userdn, password)
if err != nil {
log.Fatal(err)
}
// Rebind as the read only user for any futher queries
err = l.Bind(bindusername, bindpassword)
if err != nil {
log.Fatal(err)
}
}
func Example_beherappolicy() {
l, err := ldap.Dial("tcp", fmt.Sprintf("%s:%d", "ldap.example.com", 389))
if err != nil {
log.Fatal(err)
}
defer l.Close()
controls := []ldap.Control{}
controls = append(controls, ldap.NewControlBeheraPasswordPolicy())
bindRequest := ldap.NewSimpleBindRequest("cn=admin,dc=example,dc=com", "password", controls)
r, err := l.SimpleBind(bindRequest)
ppolicyControl := ldap.FindControl(r.Controls, ldap.ControlTypeBeheraPasswordPolicy)
var ppolicy *ldap.ControlBeheraPasswordPolicy
if ppolicyControl != nil {
ppolicy = ppolicyControl.(*ldap.ControlBeheraPasswordPolicy)
} else {
log.Printf("ppolicyControl response not avaliable.\n")
}
if err != nil {
errStr := "ERROR: Cannot bind: " + err.Error()
if ppolicy != nil && ppolicy.Error >= 0 {
errStr += ":" + ppolicy.ErrorString
}
log.Print(errStr)
} else {
logStr := "Login Ok"
if ppolicy != nil {
if ppolicy.Expire >= 0 {
logStr += fmt.Sprintf(". Password expires in %d seconds\n", ppolicy.Expire)
} else if ppolicy.Grace >= 0 {
logStr += fmt.Sprintf(". Password expired, %d grace logins remain\n", ppolicy.Grace)
}
}
log.Print(logStr)
}
}
func Example_vchuppolicy() {
l, err := ldap.Dial("tcp", fmt.Sprintf("%s:%d", "ldap.example.com", 389))
if err != nil {
log.Fatal(err)
}
defer l.Close()
l.Debug = true
bindRequest := ldap.NewSimpleBindRequest("cn=admin,dc=example,dc=com", "password", nil)
r, err := l.SimpleBind(bindRequest)
passwordMustChangeControl := ldap.FindControl(r.Controls, ldap.ControlTypeVChuPasswordMustChange)
var passwordMustChange *ldap.ControlVChuPasswordMustChange
if passwordMustChangeControl != nil {
passwordMustChange = passwordMustChangeControl.(*ldap.ControlVChuPasswordMustChange)
}
if passwordMustChange != nil && passwordMustChange.MustChange {
log.Printf("Password Must be changed.\n")
}
passwordWarningControl := ldap.FindControl(r.Controls, ldap.ControlTypeVChuPasswordWarning)
var passwordWarning *ldap.ControlVChuPasswordWarning
if passwordWarningControl != nil {
passwordWarning = passwordWarningControl.(*ldap.ControlVChuPasswordWarning)
} else {
log.Printf("ppolicyControl response not available.\n")
}
if err != nil {
log.Print("ERROR: Cannot bind: " + err.Error())
} else {
logStr := "Login Ok"
if passwordWarning != nil {
if passwordWarning.Expire >= 0 {
logStr += fmt.Sprintf(". Password expires in %d seconds\n", passwordWarning.Expire)
}
}
log.Print(logStr)
}
}
|
