github.com/zmap/zlint@v1.1.0/lints/lint_san_iana_pub_suffix_empty.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  import (
    18  	"strings"
    19  
    20  	"github.com/zmap/zcrypto/x509"
    21  	"github.com/zmap/zlint/util"
    22  )
    23  
    24  type pubSuffix struct{}
    25  
    26  func (l *pubSuffix) Initialize() error {
    27  	return nil
    28  }
    29  
    30  func (l *pubSuffix) CheckApplies(c *x509.Certificate) bool {
    31  	return util.IsExtInCert(c, util.SubjectAlternateNameOID)
    32  }
    33  
    34  func (l *pubSuffix) Execute(c *x509.Certificate) *LintResult {
    35  	parsedSANDNSNames := c.GetParsedDNSNames(false)
    36  	for i := range c.GetParsedDNSNames(false) {
    37  		if parsedSANDNSNames[i].ParseError != nil {
    38  			if strings.HasSuffix(parsedSANDNSNames[i].ParseError.Error(), "is a suffix") {
    39  				return &LintResult{Status: Warn}
    40  			} else {
    41  				return &LintResult{Status: NA}
    42  			}
    43  		}
    44  	}
    45  	return &LintResult{Status: Pass}
    46  }
    47  
    48  func init() {
    49  	RegisterLint(&Lint{
    50  		Name:          "w_san_iana_pub_suffix_empty",
    51  		Description:   "The domain SHOULD NOT have a bare public suffix",
    52  		Citation:      "awslabs certlint",
    53  		Source:        AWSLabs,
    54  		EffectiveDate: util.ZeroDate,
    55  		Lint:          &pubSuffix{},
    56  	})
    57  }