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package rfc
/*
* ZLint Copyright 2024 Regents of the University of Michigan
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy
* of the License at http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
import (
"github.com/zmap/zcrypto/encoding/asn1"
"github.com/zmap/zcrypto/x509"
"github.com/zmap/zlint/v3/lint"
"github.com/zmap/zlint/v3/util"
)
type IssuerDNCountryNotPrintableString struct{}
func init() {
lint.RegisterCertificateLint(&lint.CertificateLint{
LintMetadata: lint.LintMetadata{
Name: "e_issuer_dn_country_not_printable_string",
Description: "X520 Distinguished Name Country MUST BE encoded as PrintableString",
Citation: "RFC 5280: Appendix A",
Source: lint.RFC5280,
EffectiveDate: util.ZeroDate,
},
Lint: NewIssuerDNCountryNotPrintableString,
})
}
func NewIssuerDNCountryNotPrintableString() lint.LintInterface {
return &IssuerDNCountryNotPrintableString{}
}
func (l *IssuerDNCountryNotPrintableString) CheckApplies(c *x509.Certificate) bool {
return len(c.Issuer.Country) > 0
}
func (l *IssuerDNCountryNotPrintableString) Execute(c *x509.Certificate) *lint.LintResult {
rdnSequence := util.RawRDNSequence{}
rest, err := asn1.Unmarshal(c.RawIssuer, &rdnSequence)
if err != nil {
return &lint.LintResult{Status: lint.Fatal}
}
if len(rest) > 0 {
return &lint.LintResult{Status: lint.Fatal}
}
for _, attrTypeAndValueSet := range rdnSequence {
for _, attrTypeAndValue := range attrTypeAndValueSet {
if attrTypeAndValue.Type.Equal(util.CountryNameOID) && attrTypeAndValue.Value.Tag != asn1.TagPrintableString {
return &lint.LintResult{Status: lint.Error}
}
}
}
return &lint.LintResult{Status: lint.Pass}
}
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