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forgejo/modules/packages/maven/metadata.go
KN4CK3R bd82d8974e
Add support for different Maven POM encoding (#25873)
Fixes #25853

- Maven POM files aren't always UTF-8 encoded.
- Reject the upload of unparsable POM files
2023-07-14 09:39:15 +00:00

93 lines
2.5 KiB
Go

// Copyright 2021 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package maven
import (
"encoding/xml"
"io"
"code.gitea.io/gitea/modules/validation"
"golang.org/x/net/html/charset"
)
// 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
dec := xml.NewDecoder(r)
dec.CharsetReader = charset.NewReaderLabel
if err := dec.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
}