github.com/zmap/zlint@v1.1.0/lints/lint_ext_subject_directory_attr_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  RFC 5280: 4.2.1.8
    19  The subject directory attributes extension is used to convey
    20     identification attributes (e.g., nationality) of the subject.  The
    21     extension is defined as a sequence of one or more attributes.
    22     Conforming CAs MUST mark this extension as non-critical.
    23  ************************************************/
    24  
    25  import (
    26  	"github.com/zmap/zcrypto/x509"
    27  	"github.com/zmap/zlint/util"
    28  )
    29  
    30  type subDirAttrCrit struct{}
    31  
    32  func (l *subDirAttrCrit) Initialize() error {
    33  	return nil
    34  }
    35  
    36  func (l *subDirAttrCrit) CheckApplies(c *x509.Certificate) bool {
    37  	return util.IsExtInCert(c, util.SubjectDirAttrOID)
    38  }
    39  
    40  func (l *subDirAttrCrit) Execute(c *x509.Certificate) *LintResult {
    41  	if e := util.GetExtFromCert(c, util.SubjectDirAttrOID); e.Critical {
    42  		return &LintResult{Status: Error}
    43  	} else {
    44  		return &LintResult{Status: Pass}
    45  	}
    46  }
    47  
    48  func init() {
    49  	RegisterLint(&Lint{
    50  		Name:          "e_ext_subject_directory_attr_critical",
    51  		Description:   "Conforming CAs MUST mark the Subject Directory Attributes extension as not critical",
    52  		Citation:      "RFC 5280: 4.2.1.8",
    53  		Source:        RFC5280,
    54  		EffectiveDate: util.RFC2459Date,
    55  		Lint:          &subDirAttrCrit{},
    56  	})
    57  }