1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
package rfc
/*
* 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/url"
"github.com/zmap/zcrypto/x509"
"github.com/zmap/zlint/v3/lint"
"github.com/zmap/zlint/v3/util"
)
type extSANURIFormatInvalid struct{}
/************************************************
The name MUST include both a
scheme (e.g., "http" or "ftp") and a scheme-specific-part.
************************************************/
func init() {
lint.RegisterCertificateLint(&lint.CertificateLint{
LintMetadata: lint.LintMetadata{
Name: "e_ext_san_uri_format_invalid",
Description: "URIs in SAN extension must have a scheme and scheme specific part",
Citation: "RFC5280: 4.2.1.6",
Source: lint.RFC5280,
EffectiveDate: util.RFC5280Date,
},
Lint: NewExtSANURIFormatInvalid,
})
}
func NewExtSANURIFormatInvalid() lint.LintInterface {
return &extSANURIFormatInvalid{}
}
func (l *extSANURIFormatInvalid) CheckApplies(c *x509.Certificate) bool {
return util.IsExtInCert(c, util.SubjectAlternateNameOID)
}
func (l *extSANURIFormatInvalid) Execute(c *x509.Certificate) *lint.LintResult {
for _, uri := range c.URIs {
parsed_uri, err := url.Parse(uri)
if err != nil {
return &lint.LintResult{Status: lint.Error}
}
//scheme
if parsed_uri.Scheme == "" {
return &lint.LintResult{Status: lint.Error}
}
//scheme-specific part
if parsed_uri.Host == "" && parsed_uri.User == nil && parsed_uri.Opaque == "" && parsed_uri.Path == "" {
return &lint.LintResult{Status: lint.Error}
}
}
return &lint.LintResult{Status: lint.Pass}
}
|
