mirror of
https://codeberg.org/forgejo/forgejo.git
synced 2024-12-25 08:54:17 -05:00
22770c324d
Signed-off-by: Andrew Thornton <art27@cantab.net>
157 lines
5.5 KiB
Go
157 lines
5.5 KiB
Go
// This file contains the password modify extended operation as specified in rfc 3062
|
|
//
|
|
// https://tools.ietf.org/html/rfc3062
|
|
//
|
|
|
|
package ldap
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
|
|
"gopkg.in/asn1-ber.v1"
|
|
)
|
|
|
|
const (
|
|
passwordModifyOID = "1.3.6.1.4.1.4203.1.11.1"
|
|
)
|
|
|
|
// PasswordModifyRequest implements the Password Modify Extended Operation as defined in https://www.ietf.org/rfc/rfc3062.txt
|
|
type PasswordModifyRequest struct {
|
|
// UserIdentity is an optional string representation of the user associated with the request.
|
|
// This string may or may not be an LDAPDN [RFC2253].
|
|
// If no UserIdentity field is present, the request acts up upon the password of the user currently associated with the LDAP session
|
|
UserIdentity string
|
|
// OldPassword, if present, contains the user's current password
|
|
OldPassword string
|
|
// NewPassword, if present, contains the desired password for this user
|
|
NewPassword string
|
|
}
|
|
|
|
// PasswordModifyResult holds the server response to a PasswordModifyRequest
|
|
type PasswordModifyResult struct {
|
|
// GeneratedPassword holds a password generated by the server, if present
|
|
GeneratedPassword string
|
|
// Referral are the returned referral
|
|
Referral string
|
|
}
|
|
|
|
func (r *PasswordModifyRequest) encode() (*ber.Packet, error) {
|
|
request := ber.Encode(ber.ClassApplication, ber.TypeConstructed, ApplicationExtendedRequest, nil, "Password Modify Extended Operation")
|
|
request.AppendChild(ber.NewString(ber.ClassContext, ber.TypePrimitive, 0, passwordModifyOID, "Extended Request Name: Password Modify OID"))
|
|
extendedRequestValue := ber.Encode(ber.ClassContext, ber.TypePrimitive, 1, nil, "Extended Request Value: Password Modify Request")
|
|
passwordModifyRequestValue := ber.Encode(ber.ClassUniversal, ber.TypeConstructed, ber.TagSequence, nil, "Password Modify Request")
|
|
if r.UserIdentity != "" {
|
|
passwordModifyRequestValue.AppendChild(ber.NewString(ber.ClassContext, ber.TypePrimitive, 0, r.UserIdentity, "User Identity"))
|
|
}
|
|
if r.OldPassword != "" {
|
|
passwordModifyRequestValue.AppendChild(ber.NewString(ber.ClassContext, ber.TypePrimitive, 1, r.OldPassword, "Old Password"))
|
|
}
|
|
if r.NewPassword != "" {
|
|
passwordModifyRequestValue.AppendChild(ber.NewString(ber.ClassContext, ber.TypePrimitive, 2, r.NewPassword, "New Password"))
|
|
}
|
|
|
|
extendedRequestValue.AppendChild(passwordModifyRequestValue)
|
|
request.AppendChild(extendedRequestValue)
|
|
|
|
return request, nil
|
|
}
|
|
|
|
// NewPasswordModifyRequest creates a new PasswordModifyRequest
|
|
//
|
|
// According to the RFC 3602:
|
|
// userIdentity is a string representing the user associated with the request.
|
|
// This string may or may not be an LDAPDN (RFC 2253).
|
|
// If userIdentity is empty then the operation will act on the user associated
|
|
// with the session.
|
|
//
|
|
// oldPassword is the current user's password, it can be empty or it can be
|
|
// needed depending on the session user access rights (usually an administrator
|
|
// can change a user's password without knowing the current one) and the
|
|
// password policy (see pwdSafeModify password policy's attribute)
|
|
//
|
|
// newPassword is the desired user's password. If empty the server can return
|
|
// an error or generate a new password that will be available in the
|
|
// PasswordModifyResult.GeneratedPassword
|
|
//
|
|
func NewPasswordModifyRequest(userIdentity string, oldPassword string, newPassword string) *PasswordModifyRequest {
|
|
return &PasswordModifyRequest{
|
|
UserIdentity: userIdentity,
|
|
OldPassword: oldPassword,
|
|
NewPassword: newPassword,
|
|
}
|
|
}
|
|
|
|
// PasswordModify performs the modification request
|
|
func (l *Conn) PasswordModify(passwordModifyRequest *PasswordModifyRequest) (*PasswordModifyResult, error) {
|
|
packet := ber.Encode(ber.ClassUniversal, ber.TypeConstructed, ber.TagSequence, nil, "LDAP Request")
|
|
packet.AppendChild(ber.NewInteger(ber.ClassUniversal, ber.TypePrimitive, ber.TagInteger, l.nextMessageID(), "MessageID"))
|
|
|
|
encodedPasswordModifyRequest, err := passwordModifyRequest.encode()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
packet.AppendChild(encodedPasswordModifyRequest)
|
|
|
|
l.Debug.PrintPacket(packet)
|
|
|
|
msgCtx, err := l.sendMessage(packet)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer l.finishMessage(msgCtx)
|
|
|
|
result := &PasswordModifyResult{}
|
|
|
|
l.Debug.Printf("%d: waiting for response", msgCtx.id)
|
|
packetResponse, ok := <-msgCtx.responses
|
|
if !ok {
|
|
return nil, NewError(ErrorNetwork, errors.New("ldap: response channel closed"))
|
|
}
|
|
packet, err = packetResponse.ReadPacket()
|
|
l.Debug.Printf("%d: got response %p", msgCtx.id, packet)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if packet == nil {
|
|
return nil, NewError(ErrorNetwork, errors.New("ldap: could not retrieve message"))
|
|
}
|
|
|
|
if l.Debug {
|
|
if err := addLDAPDescriptions(packet); err != nil {
|
|
return nil, err
|
|
}
|
|
ber.PrintPacket(packet)
|
|
}
|
|
|
|
if packet.Children[1].Tag == ApplicationExtendedResponse {
|
|
err := GetLDAPError(packet)
|
|
if err != nil {
|
|
if IsErrorWithCode(err, LDAPResultReferral) {
|
|
for _, child := range packet.Children[1].Children {
|
|
if child.Tag == 3 {
|
|
result.Referral = child.Children[0].Value.(string)
|
|
}
|
|
}
|
|
}
|
|
return result, err
|
|
}
|
|
} else {
|
|
return nil, NewError(ErrorUnexpectedResponse, fmt.Errorf("unexpected Response: %d", packet.Children[1].Tag))
|
|
}
|
|
|
|
extendedResponse := packet.Children[1]
|
|
for _, child := range extendedResponse.Children {
|
|
if child.Tag == 11 {
|
|
passwordModifyResponseValue := ber.DecodePacket(child.Data.Bytes())
|
|
if len(passwordModifyResponseValue.Children) == 1 {
|
|
if passwordModifyResponseValue.Children[0].Tag == 0 {
|
|
result.GeneratedPassword = ber.DecodeString(passwordModifyResponseValue.Children[0].Data.Bytes())
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return result, nil
|
|
}
|