-
Notifications
You must be signed in to change notification settings - Fork 16
/
maven.go
160 lines (133 loc) · 4.2 KB
/
maven.go
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
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
// Copyright 2021 The Witness Contributors
//
// 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.
package maven
import (
"crypto"
"encoding/xml"
"fmt"
"io"
"os"
"github.com/in-toto/go-witness/attestation"
"github.com/in-toto/go-witness/cryptoutil"
"github.com/in-toto/go-witness/log"
"github.com/in-toto/go-witness/registry"
"github.com/invopop/jsonschema"
)
const (
Name = "maven"
Type = "https://witness.dev/attestations/maven/v0.1"
RunType = attestation.PreMaterialRunType
defaultPomPath = "pom.xml"
)
// This is a hacky way to create a compile time error in case the attestor
// doesn't implement the expected interfaces.
var (
_ attestation.Attestor = &Attestor{}
_ attestation.Subjecter = &Attestor{}
)
func init() {
attestation.RegisterAttestation(Name, Type, RunType, func() attestation.Attestor {
return New()
},
registry.StringConfigOption(
"pom-path",
fmt.Sprintf("The path to the Project Object Model (POM) XML file used for task being attested (default \"%s\").", defaultPomPath),
defaultPomPath,
func(a attestation.Attestor, pomPath string) (attestation.Attestor, error) {
mavAttestor, ok := a.(*Attestor)
if !ok {
return a, fmt.Errorf("unexpected attestor type: %T is not a maven attestor", a)
}
WithPom(pomPath)(mavAttestor)
return mavAttestor, nil
},
),
)
}
type Attestor struct {
XMLName xml.Name `xml:"project" json:"-"`
GroupId string `xml:"groupId" json:"groupid"`
ArtifactId string `xml:"artifactId" json:"artifactid"`
Version string `xml:"version" json:"version"`
ProjectName string `xml:"name" json:"projectname"`
Dependencies []MavenDependency `xml:"dependencies>dependency" json:"dependencies"`
pomPath string
}
type MavenDependency struct {
GroupId string `xml:"groupId" json:"groupid"`
ArtifactId string `xml:"artifactId" json:"artifactid"`
Version string `xml:"version" json:"version"`
Scope string `xml:"scope" json:"scope"`
}
type Option func(*Attestor)
func WithPom(path string) Option {
return func(a *Attestor) {
a.pomPath = path
}
}
func New(opts ...Option) *Attestor {
attestor := &Attestor{
pomPath: defaultPomPath,
}
for _, opt := range opts {
opt(attestor)
}
return attestor
}
func (a *Attestor) Name() string {
return Name
}
func (a *Attestor) Type() string {
return Type
}
func (a *Attestor) RunType() attestation.RunType {
return RunType
}
func (a *Attestor) Schema() *jsonschema.Schema {
return jsonschema.Reflect(&a)
}
func (a *Attestor) Attest(ctx *attestation.AttestationContext) error {
pomFile, err := os.Open(a.pomPath)
if err != nil {
return err
}
defer pomFile.Close()
pomFileBytes, err := io.ReadAll(pomFile)
if err != nil {
return err
}
if err := xml.Unmarshal(pomFileBytes, &a); err != nil {
return err
}
return nil
}
func (a *Attestor) Subjects() map[string]cryptoutil.DigestSet {
subjects := make(map[string]cryptoutil.DigestSet)
hashes := []cryptoutil.DigestValue{{Hash: crypto.SHA256}}
projectSubject := fmt.Sprintf("project:%v/%v@%v", a.GroupId, a.ArtifactId, a.Version)
if ds, err := cryptoutil.CalculateDigestSetFromBytes([]byte(projectSubject), hashes); err == nil {
subjects[projectSubject] = ds
} else {
log.Debugf("(attestation/maven) failed to record %v subject: %w", projectSubject, err)
}
for _, dep := range a.Dependencies {
depSubject := fmt.Sprintf("dependency:%v/%v@%v", dep.GroupId, dep.ArtifactId, dep.Version)
depDigest, err := cryptoutil.CalculateDigestSetFromBytes([]byte(depSubject), hashes)
if err != nil {
log.Debugf("(attestation/maven) failed to record %v subject: %w", depSubject, err)
}
subjects[depSubject] = depDigest
}
return subjects
}