A cloud-native LDAP server backed by a Consul datastore
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package message
import "fmt"
//
// Filter ::= CHOICE {
// and [0] SET SIZE (1..MAX) OF filter Filter,
// or [1] SET SIZE (1..MAX) OF filter Filter,
// not [2] Filter,
// equalityMatch [3] AttributeValueAssertion,
//
//
//
//Sermersheim Standards Track [Page 57]
//
//
//RFC 4511 LDAPv3 June 2006
//
//
// substrings [4] SubstringFilter,
// greaterOrEqual [5] AttributeValueAssertion,
// lessOrEqual [6] AttributeValueAssertion,
// present [7] AttributeDescription,
// approxMatch [8] AttributeValueAssertion,
// extensibleMatch [9] MatchingRuleAssertion,
// ... }
func readFilter(bytes *Bytes) (filter Filter, err error) {
var tagAndLength TagAndLength
tagAndLength, err = bytes.PreviewTagAndLength()
if err != nil {
err = LdapError{fmt.Sprintf("readFilter:\n%s", err.Error())}
return
}
err = tagAndLength.ExpectClass(classContextSpecific)
if err != nil {
err = LdapError{fmt.Sprintf("readFilter:\n%s", err.Error())}
return
}
switch tagAndLength.Tag {
case TagFilterAnd:
filter, err = readFilterAnd(bytes)
case TagFilterOr:
filter, err = readFilterOr(bytes)
case TagFilterNot:
filter, err = readFilterNot(bytes)
case TagFilterEqualityMatch:
filter, err = readFilterEqualityMatch(bytes)
case TagFilterSubstrings:
filter, err = readFilterSubstrings(bytes)
case TagFilterGreaterOrEqual:
filter, err = readFilterGreaterOrEqual(bytes)
case TagFilterLessOrEqual:
filter, err = readFilterLessOrEqual(bytes)
case TagFilterPresent:
filter, err = readFilterPresent(bytes)
case TagFilterApproxMatch:
filter, err = readFilterApproxMatch(bytes)
case TagFilterExtensibleMatch:
filter, err = readFilterExtensibleMatch(bytes)
default:
err = LdapError{fmt.Sprintf("readFilter: invalid tag value %d for filter", tagAndLength.Tag)}
return
}
if err != nil {
err = LdapError{fmt.Sprintf("readFilter:\n%s", err.Error())}
return
}
return
}