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package cabf_br
/*
* 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 (
"net"
"net/url"
"time"
"github.com/zmap/zcrypto/x509"
"github.com/zmap/zlint/v3/lint"
"github.com/zmap/zlint/v3/util"
)
type subCertAIAInternalName struct{}
/************************************************************************
BRs: 7.1.2.10.3
CA Certificate Authority Information Access
This extension MAY be present. If present, it MUST NOT be marked critical, and it MUST contain the
HTTP URL of the CA’s CRL service.
id-ad-ocsp A HTTP URL of the Issuing CA's OCSP responder.
id-ad-caIssuers A HTTP URL of the Issuing CA's Certificate.
*************************************************************************/
func init() {
lint.RegisterCertificateLint(&lint.CertificateLint{
LintMetadata: lint.LintMetadata{
Name: "w_sub_cert_aia_contains_internal_names",
Description: "Subscriber certificates authorityInformationAccess extension should contain the HTTP URL of the issuing CA’s certificate, for public certificates this should not be an internal name",
Citation: "BRs: 7.1.2.10.3",
Source: lint.CABFBaselineRequirements,
EffectiveDate: util.CABEffectiveDate,
},
Lint: NewSubCertAIAInternalName,
})
}
func NewSubCertAIAInternalName() lint.LintInterface {
return &subCertAIAInternalName{}
}
func (l *subCertAIAInternalName) CheckApplies(c *x509.Certificate) bool {
return util.IsSubscriberCert(c) && util.IsExtInCert(c, util.AiaOID)
}
func (l *subCertAIAInternalName) Execute(c *x509.Certificate) *lint.LintResult {
for _, u := range c.OCSPServer {
purl, err := url.Parse(u)
if err != nil {
return &lint.LintResult{Status: lint.Error}
}
if net.ParseIP(purl.Host) != nil {
continue
}
if !util.HasValidTLD(purl.Hostname(), time.Now()) {
return &lint.LintResult{Status: lint.Warn}
}
}
for _, u := range c.IssuingCertificateURL {
purl, err := url.Parse(u)
if err != nil {
return &lint.LintResult{Status: lint.Error}
}
if net.ParseIP(purl.Host) != nil {
continue
}
if !util.HasValidTLD(purl.Hostname(), time.Now()) {
return &lint.LintResult{Status: lint.Warn}
}
}
return &lint.LintResult{Status: lint.Pass}
}
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