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113 lines
3.1 KiB
Go
113 lines
3.1 KiB
Go
// Copyright 2021 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package maven
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import (
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"encoding/xml"
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"io"
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"code.gitea.io/gitea/modules/util"
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"code.gitea.io/gitea/modules/validation"
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"golang.org/x/net/html/charset"
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)
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// Metadata represents the metadata of a Maven package
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type Metadata struct {
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GroupID string `json:"group_id,omitempty"`
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ArtifactID string `json:"artifact_id,omitempty"`
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Name string `json:"name,omitempty"`
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Description string `json:"description,omitempty"`
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ProjectURL string `json:"project_url,omitempty"`
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Licenses []string `json:"licenses,omitempty"`
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Dependencies []*Dependency `json:"dependencies,omitempty"`
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}
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// Dependency represents a dependency of a Maven package
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type Dependency struct {
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GroupID string `json:"group_id,omitempty"`
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ArtifactID string `json:"artifact_id,omitempty"`
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Version string `json:"version,omitempty"`
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}
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type pomStruct struct {
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XMLName xml.Name `xml:"project"`
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GroupID string `xml:"groupId"`
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ArtifactID string `xml:"artifactId"`
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Version string `xml:"version"`
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Name string `xml:"name"`
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Description string `xml:"description"`
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URL string `xml:"url"`
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Licenses []struct {
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Name string `xml:"name"`
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URL string `xml:"url"`
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Distribution string `xml:"distribution"`
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} `xml:"licenses>license"`
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Dependencies []struct {
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GroupID string `xml:"groupId"`
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ArtifactID string `xml:"artifactId"`
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Version string `xml:"version"`
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Scope string `xml:"scope"`
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} `xml:"dependencies>dependency"`
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Parent struct {
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GroupID string `xml:"groupId"`
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ArtifactID string `xml:"artifactId"`
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Version string `xml:"version"`
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RelativePath string `xml:"relativePath"`
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} `xml:"parent"`
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}
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var ErrNoGroupID = util.NewInvalidArgumentErrorf("group ID is missing")
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// ParsePackageMetaData parses the metadata of a pom file
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func ParsePackageMetaData(r io.Reader) (*Metadata, error) {
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var pom pomStruct
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dec := xml.NewDecoder(r)
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dec.CharsetReader = charset.NewReaderLabel
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if err := dec.Decode(&pom); err != nil {
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return nil, err
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}
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if !validation.IsValidURL(pom.URL) {
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pom.URL = ""
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}
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groupID := pom.GroupID
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if groupID == "" {
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// If a project inherits from a parent project, the groupId element is optional.
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// Refer to: https://maven.apache.org/pom.html#Inheritance
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if pom.Parent.GroupID == "" {
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return nil, ErrNoGroupID
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}
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groupID = pom.Parent.GroupID
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}
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licenses := make([]string, 0, len(pom.Licenses))
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for _, l := range pom.Licenses {
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if l.Name != "" {
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licenses = append(licenses, l.Name)
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}
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}
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dependencies := make([]*Dependency, 0, len(pom.Dependencies))
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for _, d := range pom.Dependencies {
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dependencies = append(dependencies, &Dependency{
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GroupID: d.GroupID,
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ArtifactID: d.ArtifactID,
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Version: d.Version,
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})
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}
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return &Metadata{
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GroupID: groupID,
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ArtifactID: pom.ArtifactID,
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Name: pom.Name,
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Description: pom.Description,
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ProjectURL: pom.URL,
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Licenses: licenses,
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Dependencies: dependencies,
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}, nil
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}
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