1. 1
2. 2
3. 3
4. 4
5. 5
6. 6
7. 7
8. 8
9. 9
10. 10
11. 11
12. 12
13. 13
14. 14
15. 15
16. 16
17. 17
18. 18
19. 19
20. 20
21. 21
22. 22
23. 23
24. 24
25. 25
26. 26
27. 27
28. 28
29. 29
30. 30
31. 31
32. 32
33. 33
34. 34
35. 35
36. 36
37. 37
38. 38
39. 39
40. 40
41. 41
42. 42
43. 43
44. 44
45. 45
46. 46
47. 47
48. 48
49. 49
50. 50
51. 51
52. 52
53. 53
54. 54
55. 55
56. 56
57. 57
58. 58
59. 59
60. 60
61. 61
62. 62
63. 63
64. 64
65. 65
66. 66
67. 67
68. 68
69. 69
70. 70
71. 71
72. 72
73. 73
74. 74
75. 75
76. 76
77. 77
78. 78
79. 79
80. 80
81. 81
82. 82
83. 83
84. 84
85. 85
86. 86
87. 87
88. 88
89. 89

// Copyright 2021 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.

package maven

import (
	"encoding/xml"
	"io"

	"code.gitea.io/gitea/modules/validation"
)

// Metadata represents the metadata of a Maven package
type Metadata struct {
	GroupID      string        `json:"group_id,omitempty"`
	ArtifactID   string        `json:"artifact_id,omitempty"`
	Name         string        `json:"name,omitempty"`
	Description  string        `json:"description,omitempty"`
	ProjectURL   string        `json:"project_url,omitempty"`
	Licenses     []string      `json:"licenses,omitempty"`
	Dependencies []*Dependency `json:"dependencies,omitempty"`
}

// Dependency represents a dependency of a Maven package
type Dependency struct {
	GroupID    string `json:"group_id,omitempty"`
	ArtifactID string `json:"artifact_id,omitempty"`
	Version    string `json:"version,omitempty"`
}

type pomStruct struct {
	XMLName     xml.Name `xml:"project"`
	GroupID     string   `xml:"groupId"`
	ArtifactID  string   `xml:"artifactId"`
	Version     string   `xml:"version"`
	Name        string   `xml:"name"`
	Description string   `xml:"description"`
	URL         string   `xml:"url"`
	Licenses    []struct {
		Name         string `xml:"name"`
		URL          string `xml:"url"`
		Distribution string `xml:"distribution"`
	} `xml:"licenses>license"`
	Dependencies []struct {
		GroupID    string `xml:"groupId"`
		ArtifactID string `xml:"artifactId"`
		Version    string `xml:"version"`
		Scope      string `xml:"scope"`
	} `xml:"dependencies>dependency"`
}

// ParsePackageMetaData parses the metadata of a pom file
func ParsePackageMetaData(r io.Reader) (*Metadata, error) {
	var pom pomStruct
	if err := xml.NewDecoder(r).Decode(&pom); err != nil {
		return nil, err
	}

	if !validation.IsValidURL(pom.URL) {
		pom.URL = ""
	}

	licenses := make([]string, 0, len(pom.Licenses))
	for _, l := range pom.Licenses {
		if l.Name != "" {
			licenses = append(licenses, l.Name)
		}
	}

	dependencies := make([]*Dependency, 0, len(pom.Dependencies))
	for _, d := range pom.Dependencies {
		dependencies = append(dependencies, &Dependency{
			GroupID:    d.GroupID,
			ArtifactID: d.ArtifactID,
			Version:    d.Version,
		})
	}

	return &Metadata{
		GroupID:      pom.GroupID,
		ArtifactID:   pom.ArtifactID,
		Name:         pom.Name,
		Description:  pom.Description,
		ProjectURL:   pom.URL,
		Licenses:     licenses,
		Dependencies: dependencies,
	}, nil
}