bottin/goldap/control.go

95 lines
2.4 KiB
Go
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package message
import (
"errors"
"fmt"
)
//
// Control ::= SEQUENCE {
// controlType LDAPOID,
// criticality BOOLEAN DEFAULT FALSE,
// controlValue OCTET STRING OPTIONAL }
func (control *Control) ControlType() LDAPOID {
return control.controlType
}
func (control *Control) Criticality() BOOLEAN {
return control.criticality
}
func (control *Control) ControlValue() *OCTETSTRING {
return control.controlValue
}
func readControl(bytes *Bytes) (control Control, err error) {
err = bytes.ReadSubBytes(classUniversal, tagSequence, control.readComponents)
if err != nil {
err = LdapError{fmt.Sprintf("readControl:\n%s", err.Error())}
return
}
return
}
func (control *Control) readComponents(bytes *Bytes) (err error) {
control.controlType, err = readLDAPOID(bytes)
if err != nil {
err = LdapError{fmt.Sprintf("readComponents:\n%s", err.Error())}
return
}
if bytes.HasMoreData() {
var tag TagAndLength
tag, err = bytes.PreviewTagAndLength()
if err != nil {
err = LdapError{fmt.Sprintf("readComponents:\n%s", err.Error())}
return
}
if tag.Tag == tagBoolean {
control.criticality, err = readBOOLEAN(bytes)
if err != nil {
err = LdapError{fmt.Sprintf("readComponents:\n%s", err.Error())}
return
}
if control.criticality == false {
err = errors.New(fmt.Sprintf("readComponents: criticality default value FALSE should not be specified"))
return
}
}
}
if bytes.HasMoreData() {
var octetstring OCTETSTRING
octetstring, err = readOCTETSTRING(bytes)
if err != nil {
err = LdapError{fmt.Sprintf("readComponents:\n%s", err.Error())}
return
}
control.controlValue = octetstring.Pointer()
}
return
}
func (control Control) write(bytes *Bytes) (size int) {
if control.controlValue != nil {
size += control.controlValue.write(bytes)
}
if control.criticality != BOOLEAN(false) {
size += control.criticality.write(bytes)
}
size += control.controlType.write(bytes)
size += bytes.WriteTagAndLength(classUniversal, isCompound, tagSequence, size)
return
}
func (control Control) size() (size int) {
if control.controlValue != nil {
size += control.controlValue.size()
}
if control.criticality != BOOLEAN(false) {
size += control.criticality.size()
}
size += control.controlType.size()
size += sizeTagAndLength(tagSequence, size)
return
}