github.com/zmap/zlint@v1.1.0/lints/lint_distribution_point_missing_ldap_or_uri.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  RFC 5280: 4.2.1.13
    19  When present, DistributionPointName SHOULD include at least one LDAP or HTTP URI.
    20  ************************************************/
    21  
    22  import (
    23  	"strings"
    24  
    25  	"github.com/zmap/zcrypto/x509"
    26  	"github.com/zmap/zlint/util"
    27  )
    28  
    29  type distribNoLDAPorURI struct{}
    30  
    31  func (l *distribNoLDAPorURI) Initialize() error {
    32  	return nil
    33  }
    34  
    35  func (l *distribNoLDAPorURI) CheckApplies(c *x509.Certificate) bool {
    36  	return util.IsExtInCert(c, util.CrlDistOID)
    37  }
    38  
    39  func (l *distribNoLDAPorURI) Execute(c *x509.Certificate) *LintResult {
    40  	for _, point := range c.CRLDistributionPoints {
    41  		if point = strings.ToLower(point); strings.HasPrefix(point, "http://") || strings.HasPrefix(point, "ldap://") {
    42  			return &LintResult{Status: Pass}
    43  		}
    44  	}
    45  	return &LintResult{Status: Warn}
    46  }
    47  
    48  func init() {
    49  	RegisterLint(&Lint{
    50  		Name:          "w_distribution_point_missing_ldap_or_uri",
    51  		Description:   "When present in the CRLDistributionPoints extension, DistributionPointName SHOULD include at least one LDAP or HTTP URI",
    52  		Citation:      "RFC 5280: 4.2.1.13",
    53  		Source:        RFC5280,
    54  		EffectiveDate: util.RFC5280Date,
    55  		Lint:          &distribNoLDAPorURI{},
    56  	})
    57  }