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package message
import "fmt"
// substrings [4] SubstringFilter,
func readFilterSubstrings(bytes *Bytes) (filtersubstrings FilterSubstrings, err error) {
var substringfilter SubstringFilter
substringfilter, err = readTaggedSubstringFilter(bytes, classContextSpecific, TagFilterSubstrings)
if err != nil {
err = LdapError{fmt.Sprintf("readFilterSubstrings:\n%s", err.Error())}
return
}
filtersubstrings = FilterSubstrings(substringfilter)
return
}
//
// SubstringFilter ::= SEQUENCE {
// type AttributeDescription,
// substrings SEQUENCE SIZE (1..MAX) OF substring CHOICE {
// initial [0] AssertionValue, -- can occur at most once
// any [1] AssertionValue,
// final [2] AssertionValue } -- can occur at most once
// }
func readTaggedSubstringFilter(bytes *Bytes, class int, tag int) (substringfilter SubstringFilter, err error) {
err = bytes.ReadSubBytes(class, tag, substringfilter.readComponents)
if err != nil {
err = LdapError{fmt.Sprintf("readTaggedSubstringFilter:\n%s", err.Error())}
return
}
return
}
func (substringfilter *SubstringFilter) readComponents(bytes *Bytes) (err error) {
substringfilter.type_, err = readAttributeDescription(bytes)
if err != nil {
err = LdapError{fmt.Sprintf("readComponents:\n%s", err.Error())}
return
}
err = substringfilter.readSubstrings(bytes)
if err != nil {
err = LdapError{fmt.Sprintf("readComponents:\n%s", err.Error())}
return
}
return
}
func (substringfilter *SubstringFilter) readSubstrings(bytes *Bytes) (err error) {
err = bytes.ReadSubBytes(classUniversal, tagSequence, substringfilter.readSubstringsComponents)
if err != nil {
err = LdapError{fmt.Sprintf("readSubstrings:\n%s", err.Error())}
return
}
return
}
func (substringfilter *SubstringFilter) readSubstringsComponents(bytes *Bytes) (err error) {
var foundInitial = 0
var foundFinal = 0
var tagAndLength TagAndLength
for bytes.HasMoreData() {
tagAndLength, err = bytes.PreviewTagAndLength()
if err != nil {
err = LdapError{fmt.Sprintf("readSubstringsComponents:\n%s", err.Error())}
return
}
var assertionvalue AssertionValue
switch tagAndLength.Tag {
case TagSubstringInitial:
foundInitial++
if foundInitial > 1 {
err = LdapError{"readSubstringsComponents: initial can occur at most once"}
return
}
assertionvalue, err = readTaggedAssertionValue(bytes, classContextSpecific, TagSubstringInitial)
if err != nil {
err = LdapError{fmt.Sprintf("readSubstringsComponents:\n%s", err.Error())}
return
}
substringfilter.substrings = append(substringfilter.substrings, SubstringInitial(assertionvalue))
case TagSubstringAny:
assertionvalue, err = readTaggedAssertionValue(bytes, classContextSpecific, TagSubstringAny)
if err != nil {
err = LdapError{fmt.Sprintf("readSubstringsComponents:\n%s", err.Error())}
return
}
substringfilter.substrings = append(substringfilter.substrings, SubstringAny(assertionvalue))
case TagSubstringFinal:
foundFinal++
if foundFinal > 1 {
err = LdapError{"readSubstringsComponents: final can occur at most once"}
return
}
assertionvalue, err = readTaggedAssertionValue(bytes, classContextSpecific, TagSubstringFinal)
if err != nil {
err = LdapError{fmt.Sprintf("readSubstringsComponents:\n%s", err.Error())}
return
}
substringfilter.substrings = append(substringfilter.substrings, SubstringFinal(assertionvalue))
default:
err = LdapError{fmt.Sprintf("readSubstringsComponents: invalid tag %d", tagAndLength.Tag)}
return
}
}
if len(substringfilter.substrings) == 0 {
err = LdapError{"readSubstringsComponents: expecting at least one substring"}
return
}
return
}
// substrings [4] SubstringFilter,
func (f FilterSubstrings) write(bytes *Bytes) int {
return SubstringFilter(f).writeTagged(bytes, classContextSpecific, TagFilterSubstrings)
}
func (s SubstringFilter) writeTagged(bytes *Bytes, class int, tag int) (size int) {
for i := len(s.substrings) - 1; i >= 0; i-- {
substring := s.substrings[i]
switch substring.(type) {
case SubstringInitial:
size += AssertionValue(substring.(SubstringInitial)).writeTagged(bytes, classContextSpecific, TagSubstringInitial)
case SubstringAny:
size += AssertionValue(substring.(SubstringAny)).writeTagged(bytes, classContextSpecific, TagSubstringAny)
case SubstringFinal:
size += AssertionValue(substring.(SubstringFinal)).writeTagged(bytes, classContextSpecific, TagSubstringFinal)
default:
panic("Unknown type for SubstringFilter substring")
}
}
size += bytes.WriteTagAndLength(classUniversal, isCompound, tagSequence, size)
size += s.type_.write(bytes)
size += bytes.WriteTagAndLength(class, isCompound, tag, size)
return
}
//
// SubstringFilter ::= SEQUENCE {
// type AttributeDescription,
// substrings SEQUENCE SIZE (1..MAX) OF substring CHOICE {
// initial [0] AssertionValue, -- can occur at most once
// any [1] AssertionValue,
// final [2] AssertionValue } -- can occur at most once
// }
func (s SubstringFilter) write(bytes *Bytes) (size int) {
return s.writeTagged(bytes, classUniversal, tagSequence)
}
func (filter FilterSubstrings) getFilterTag() int {
return TagFilterSubstrings
}
// substrings [4] SubstringFilter,
func (f FilterSubstrings) size() int {
return SubstringFilter(f).sizeTagged(TagFilterSubstrings)
}
//
// SubstringFilter ::= SEQUENCE {
// type AttributeDescription,
// substrings SEQUENCE SIZE (1..MAX) OF substring CHOICE {
// initial [0] AssertionValue, -- can occur at most once
// any [1] AssertionValue,
// final [2] AssertionValue } -- can occur at most once
// }
func (s SubstringFilter) size() (size int) {
return s.sizeTagged(tagSequence)
}
func (s SubstringFilter) sizeTagged(tag int) (size int) {
for _, substring := range s.substrings {
switch substring.(type) {
case SubstringInitial:
size += AssertionValue(substring.(SubstringInitial)).sizeTagged(TagSubstringInitial)
case SubstringAny:
size += AssertionValue(substring.(SubstringAny)).sizeTagged(TagSubstringAny)
case SubstringFinal:
size += AssertionValue(substring.(SubstringFinal)).sizeTagged(TagSubstringFinal)
default:
panic("Unknown type for SubstringFilter substring")
}
}
size += sizeTagAndLength(tagSequence, size)
size += s.type_.size()
size += sizeTagAndLength(tag, size)
return
}
func (s *FilterSubstrings) Type_() AttributeDescription {
return s.type_
}
func (s *FilterSubstrings) Substrings() []Substring {
return s.substrings
}
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