114 lines
		
	
	
		
			3.3 KiB
		
	
	
	
		
			Go
		
	
	
	
			
		
		
	
	
			114 lines
		
	
	
		
			3.3 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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}
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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) *AddRequest {
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	return &AddRequest{
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		DN: dn,
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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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	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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		resultCode, resultDescription := getLDAPResultCode(packet)
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		if resultCode != 0 {
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			return NewError(resultCode, errors.New(resultDescription))
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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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