github.com/zmap/zlint@v1.1.0/lints/lint_ext_freshest_crl_marked_critical.go (about)

     1  package lints
     2  
     3  /*
     4   * ZLint Copyright 2018 Regents of the University of Michigan
     5   *
     6   * Licensed under the Apache License, Version 2.0 (the "License"); you may not
     7   * use this file except in compliance with the License. You may obtain a copy
     8   * of the License at http://www.apache.org/licenses/LICENSE-2.0
     9   *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
    13   * implied. See the License for the specific language governing
    14   * permissions and limitations under the License.
    15   */
    16  
    17  /************************************************
    18  The freshest CRL extension identifies how delta CRL information is obtained. The extension MUST be marked as non-critical by conforming CAs. Further discussion of CRL management is contained in Section 5.
    19  ************************************************/
    20  
    21  import (
    22  	"github.com/zmap/zcrypto/x509"
    23  	"github.com/zmap/zcrypto/x509/pkix"
    24  	"github.com/zmap/zlint/util"
    25  )
    26  
    27  type ExtFreshestCrlMarkedCritical struct{}
    28  
    29  func (l *ExtFreshestCrlMarkedCritical) Initialize() error {
    30  	return nil
    31  }
    32  
    33  func (l *ExtFreshestCrlMarkedCritical) CheckApplies(cert *x509.Certificate) bool {
    34  	return util.IsExtInCert(cert, util.FreshCRLOID)
    35  }
    36  
    37  func (l *ExtFreshestCrlMarkedCritical) Execute(cert *x509.Certificate) *LintResult {
    38  	var fCRL *pkix.Extension = util.GetExtFromCert(cert, util.FreshCRLOID)
    39  	if fCRL != nil && fCRL.Critical {
    40  		return &LintResult{Status: Error}
    41  	} else if fCRL != nil && !fCRL.Critical {
    42  		return &LintResult{Status: Pass}
    43  	}
    44  	return &LintResult{Status: NA} //shouldn't happen
    45  }
    46  
    47  func init() {
    48  	RegisterLint(&Lint{
    49  		Name:          "e_ext_freshest_crl_marked_critical",
    50  		Description:   "Freshest CRL MUST be marked as non-critical by conforming CAs",
    51  		Citation:      "RFC 5280: 4.2.1.15",
    52  		Source:        RFC5280,
    53  		EffectiveDate: util.RFC3280Date,
    54  		Lint:          &ExtFreshestCrlMarkedCritical{},
    55  	})
    56  }