Adding upstream version 9.0.0.

Signed-off-by: Daniel Baumann <daniel@debian.org>

2 files changed, 183 insertions, 0 deletions

diff --git a/modules/packages/maven/metadata.go b/modules/packages/maven/metadata.go
new file mode 100644
index 0000000..42aa250
--- /dev/null
+++ b/modules/packages/maven/metadata.go
@@ -0,0 +1,93 @@
+// 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
+}
diff --git a/modules/packages/maven/metadata_test.go b/modules/packages/maven/metadata_test.go
new file mode 100644
index 0000000..d009301
--- /dev/null
+++ b/modules/packages/maven/metadata_test.go
@@ -0,0 +1,90 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package maven
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"golang.org/x/text/encoding/charmap"
+)
+
+const (
+	groupID              = "org.gitea"
+	artifactID           = "my-project"
+	version              = "1.0.1"
+	name                 = "My Gitea Project"
+	description          = "Package Description"
+	projectURL           = "https://gitea.io"
+	license              = "MIT"
+	dependencyGroupID    = "org.gitea.core"
+	dependencyArtifactID = "git"
+	dependencyVersion    = "5.0.0"
+)
+
+const pomContent = `<?xml version="1.0"?>
+<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <groupId>` + groupID + `</groupId>
+  <artifactId>` + artifactID + `</artifactId>
+  <version>` + version + `</version>
+  <name>` + name + `</name>
+  <description>` + description + `</description>
+  <url>` + projectURL + `</url>
+  <licenses>
+    <license>
+      <name>` + license + `</name>
+    </license>
+  </licenses>
+  <dependencies>
+    <dependency>
+      <groupId>` + dependencyGroupID + `</groupId>
+      <artifactId>` + dependencyArtifactID + `</artifactId>
+      <version>` + dependencyVersion + `</version>
+    </dependency>
+  </dependencies>
+</project>`
+
+func TestParsePackageMetaData(t *testing.T) {
+	t.Run("InvalidFile", func(t *testing.T) {
+		m, err := ParsePackageMetaData(strings.NewReader(""))
+		assert.Nil(t, m)
+		require.Error(t, err)
+	})
+
+	t.Run("Valid", func(t *testing.T) {
+		m, err := ParsePackageMetaData(strings.NewReader(pomContent))
+		require.NoError(t, err)
+		assert.NotNil(t, m)
+
+		assert.Equal(t, groupID, m.GroupID)
+		assert.Equal(t, artifactID, m.ArtifactID)
+		assert.Equal(t, name, m.Name)
+		assert.Equal(t, description, m.Description)
+		assert.Equal(t, projectURL, m.ProjectURL)
+		assert.Len(t, m.Licenses, 1)
+		assert.Equal(t, license, m.Licenses[0])
+		assert.Len(t, m.Dependencies, 1)
+		assert.Equal(t, dependencyGroupID, m.Dependencies[0].GroupID)
+		assert.Equal(t, dependencyArtifactID, m.Dependencies[0].ArtifactID)
+		assert.Equal(t, dependencyVersion, m.Dependencies[0].Version)
+	})
+
+	t.Run("Encoding", func(t *testing.T) {
+		// UTF-8 is default but the metadata could be encoded differently
+		pomContent8859_1, err := charmap.ISO8859_1.NewEncoder().String(
+			strings.ReplaceAll(
+				pomContent,
+				`<?xml version="1.0"?>`,
+				`<?xml version="1.0" encoding="ISO-8859-1"?>`,
+			),
+		)
+		require.NoError(t, err)
+
+		m, err := ParsePackageMetaData(strings.NewReader(pomContent8859_1))
+		require.NoError(t, err)
+		assert.NotNil(t, m)
+	})
+}