119 lines
3.4 KiB
Go
119 lines
3.4 KiB
Go
//
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// https://tools.ietf.org/html/rfc4511
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//
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// AddRequest ::= [APPLICATION 8] SEQUENCE {
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// entry LDAPDN,
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// attributes AttributeList }
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//
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// AttributeList ::= SEQUENCE OF attribute Attribute
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package ldap
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import (
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"errors"
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"log"
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"gopkg.in/asn1-ber.v1"
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)
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// Attribute represents an LDAP attribute
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type Attribute struct {
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// Type is the name of the LDAP attribute
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Type string
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// Vals are the LDAP attribute values
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Vals []string
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}
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func (a *Attribute) encode() *ber.Packet {
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seq := ber.Encode(ber.ClassUniversal, ber.TypeConstructed, ber.TagSequence, nil, "Attribute")
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seq.AppendChild(ber.NewString(ber.ClassUniversal, ber.TypePrimitive, ber.TagOctetString, a.Type, "Type"))
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set := ber.Encode(ber.ClassUniversal, ber.TypeConstructed, ber.TagSet, nil, "AttributeValue")
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for _, value := range a.Vals {
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set.AppendChild(ber.NewString(ber.ClassUniversal, ber.TypePrimitive, ber.TagOctetString, value, "Vals"))
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}
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seq.AppendChild(set)
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return seq
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}
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// AddRequest represents an LDAP AddRequest operation
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type AddRequest struct {
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// DN identifies the entry being added
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DN string
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// Attributes list the attributes of the new entry
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Attributes []Attribute
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// Controls hold optional controls to send with the request
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Controls []Control
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}
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func (a AddRequest) encode() *ber.Packet {
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request := ber.Encode(ber.ClassApplication, ber.TypeConstructed, ApplicationAddRequest, nil, "Add Request")
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request.AppendChild(ber.NewString(ber.ClassUniversal, ber.TypePrimitive, ber.TagOctetString, a.DN, "DN"))
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attributes := ber.Encode(ber.ClassUniversal, ber.TypeConstructed, ber.TagSequence, nil, "Attributes")
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for _, attribute := range a.Attributes {
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attributes.AppendChild(attribute.encode())
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}
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request.AppendChild(attributes)
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return request
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}
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// Attribute adds an attribute with the given type and values
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func (a *AddRequest) Attribute(attrType string, attrVals []string) {
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a.Attributes = append(a.Attributes, Attribute{Type: attrType, Vals: attrVals})
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}
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// NewAddRequest returns an AddRequest for the given DN, with no attributes
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func NewAddRequest(dn string, controls []Control) *AddRequest {
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return &AddRequest{
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DN: dn,
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Controls: controls,
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}
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}
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// Add performs the given AddRequest
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func (l *Conn) Add(addRequest *AddRequest) error {
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packet := ber.Encode(ber.ClassUniversal, ber.TypeConstructed, ber.TagSequence, nil, "LDAP Request")
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packet.AppendChild(ber.NewInteger(ber.ClassUniversal, ber.TypePrimitive, ber.TagInteger, l.nextMessageID(), "MessageID"))
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packet.AppendChild(addRequest.encode())
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if len(addRequest.Controls) > 0 {
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packet.AppendChild(encodeControls(addRequest.Controls))
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}
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l.Debug.PrintPacket(packet)
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msgCtx, err := l.sendMessage(packet)
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if err != nil {
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return err
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}
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defer l.finishMessage(msgCtx)
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l.Debug.Printf("%d: waiting for response", msgCtx.id)
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packetResponse, ok := <-msgCtx.responses
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if !ok {
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return NewError(ErrorNetwork, errors.New("ldap: response channel closed"))
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}
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packet, err = packetResponse.ReadPacket()
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l.Debug.Printf("%d: got response %p", msgCtx.id, packet)
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if err != nil {
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return err
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}
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if l.Debug {
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if err := addLDAPDescriptions(packet); err != nil {
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return err
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}
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ber.PrintPacket(packet)
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}
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if packet.Children[1].Tag == ApplicationAddResponse {
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err := GetLDAPError(packet)
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if err != nil {
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return err
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}
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} else {
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log.Printf("Unexpected Response: %d", packet.Children[1].Tag)
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}
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l.Debug.Printf("%d: returning", msgCtx.id)
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return nil
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}
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