chore: initialize Gitea v1.27.2 fork

Includes direct password setup links in registration emails.

Assisted-by: Codex:GPT-5

modules/packages/debian/metadata_test.go

@@ -0,0 +1,246 @@
+// Copyright 2023 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package debian
+
+import (
+	"archive/tar"
+	"bytes"
+	"compress/gzip"
+	"io"
+	"testing"
+
+	"gitea.dev/modules/util"
+	"gitea.dev/modules/zstd"
+
+	"github.com/blakesmith/ar"
+	"github.com/stretchr/testify/assert"
+	"github.com/ulikunitz/xz"
+)
+
+const (
+	packageName         = "gitea"
+	packageVersion      = "0:1.0.1-te~st"
+	packageArchitecture = "amd64"
+	packageAuthor       = "KN4CK3R"
+	description         = "Description with multiple lines."
+	projectURL          = "https://gitea.io"
+)
+
+func TestParsePackage(t *testing.T) {
+	createArchive := func(files map[string][]byte) io.Reader {
+		var buf bytes.Buffer
+		aw := ar.NewWriter(&buf)
+		aw.WriteGlobalHeader()
+		for filename, content := range files {
+			hdr := &ar.Header{
+				Name: filename,
+				Mode: 0o600,
+				Size: int64(len(content)),
+			}
+			aw.WriteHeader(hdr)
+			aw.Write(content)
+		}
+		return &buf
+	}
+
+	t.Run("MissingControlFile", func(t *testing.T) {
+		data := createArchive(map[string][]byte{"dummy.txt": {}})
+
+		p, err := ParsePackage(data)
+		assert.Nil(t, p)
+		assert.ErrorIs(t, err, GlobalVars().ErrMissingControlFile)
+	})
+
+	t.Run("Compression", func(t *testing.T) {
+		t.Run("Unsupported", func(t *testing.T) {
+			data := createArchive(map[string][]byte{"control.tar.foo": {}})
+
+			p, err := ParsePackage(data)
+			assert.Nil(t, p)
+			assert.ErrorIs(t, err, GlobalVars().ErrUnsupportedCompression)
+		})
+
+		var buf bytes.Buffer
+		tw := tar.NewWriter(&buf)
+		tw.WriteHeader(&tar.Header{
+			Name: "control",
+			Mode: 0o600,
+			Size: 50,
+		})
+		tw.Write([]byte("Package: gitea\nVersion: 1.0.0\nArchitecture: amd64\n"))
+		tw.Close()
+
+		cases := []struct {
+			Extension     string
+			WriterFactory func(io.Writer) io.WriteCloser
+		}{
+			{
+				Extension: "",
+				WriterFactory: func(w io.Writer) io.WriteCloser {
+					return util.NopCloser{Writer: w}
+				},
+			},
+			{
+				Extension: ".gz",
+				WriterFactory: func(w io.Writer) io.WriteCloser {
+					return gzip.NewWriter(w)
+				},
+			},
+			{
+				Extension: ".xz",
+				WriterFactory: func(w io.Writer) io.WriteCloser {
+					xw, _ := xz.NewWriter(w)
+					return xw
+				},
+			},
+			{
+				Extension: ".zst",
+				WriterFactory: func(w io.Writer) io.WriteCloser {
+					zw, _ := zstd.NewWriter(w)
+					return zw
+				},
+			},
+		}
+
+		for _, c := range cases {
+			t.Run(c.Extension, func(t *testing.T) {
+				var cbuf bytes.Buffer
+				w := c.WriterFactory(&cbuf)
+				w.Write(buf.Bytes())
+				w.Close()
+
+				data := createArchive(map[string][]byte{"control.tar" + c.Extension: cbuf.Bytes()})
+
+				p, err := ParsePackage(data)
+				assert.NotNil(t, p)
+				assert.NoError(t, err)
+				assert.Equal(t, "gitea", p.Name)
+
+				t.Run("TrailingSlash", func(t *testing.T) {
+					data := createArchive(map[string][]byte{"control.tar" + c.Extension + "/": cbuf.Bytes()})
+
+					p, err := ParsePackage(data)
+					assert.NotNil(t, p)
+					assert.NoError(t, err)
+					assert.Equal(t, "gitea", p.Name)
+				})
+			})
+		}
+	})
+}
+
+func TestParseControlFile(t *testing.T) {
+	buildContent := func(name, version, architecture string) *bytes.Buffer {
+		var buf bytes.Buffer
+		buf.WriteString("Package: " + name + "\nVersion: " + version + "\nArchitecture: " + architecture + "\nMaintainer: " + packageAuthor + " <kn4ck3r@gitea.io>\nHomepage: " + projectURL + "\nDepends: a,\n b\nDescription: Description\n with multiple\n lines.")
+		return &buf
+	}
+
+	t.Run("InvalidName", func(t *testing.T) {
+		for _, name := range []string{"", "-cd"} {
+			p, err := ParseControlFile(buildContent(name, packageVersion, packageArchitecture))
+			assert.Nil(t, p)
+			assert.ErrorIs(t, err, GlobalVars().ErrInvalidName)
+		}
+	})
+
+	t.Run("InvalidVersion", func(t *testing.T) {
+		for _, version := range []string{"", "1-", ":1.0", "1_0"} {
+			p, err := ParseControlFile(buildContent(packageName, version, packageArchitecture))
+			assert.Nil(t, p)
+			assert.ErrorIs(t, err, GlobalVars().ErrInvalidVersion)
+		}
+	})
+
+	t.Run("InvalidArchitecture", func(t *testing.T) {
+		p, err := ParseControlFile(buildContent(packageName, packageVersion, ""))
+		assert.Nil(t, p)
+		assert.ErrorIs(t, err, GlobalVars().ErrInvalidArchitecture)
+	})
+
+	t.Run("Valid", func(t *testing.T) {
+		content := buildContent(packageName, packageVersion, packageArchitecture)
+		full := content.String()
+
+		p, err := ParseControlFile(content)
+		assert.NoError(t, err)
+		assert.NotNil(t, p)
+
+		assert.Equal(t, packageName, p.Name)
+		assert.Equal(t, packageVersion, p.Version)
+		assert.Equal(t, packageArchitecture, p.Architecture)
+		assert.Equal(t, description, p.Metadata.Description)
+		assert.Equal(t, projectURL, p.Metadata.ProjectURL)
+		assert.Equal(t, packageAuthor, p.Metadata.Maintainer)
+		assert.Equal(t, []string{"a", "b"}, p.Metadata.Dependencies)
+		assert.Equal(t, full, p.Control)
+	})
+
+	t.Run("ValidVersions", func(t *testing.T) {
+		for _, version := range []string{"1.0", "0:1.2", "9:1.0", "10:1.0", "900:1a.2b-x-y_z~1+2"} {
+			p, err := ParseControlFile(buildContent("testpkg", version, "amd64"))
+			assert.NoError(t, err, "ParseControlFile with version %q", version)
+			assert.NotNil(t, p)
+		}
+	})
+
+	t.Run("SingleStanzaOnly", func(t *testing.T) {
+		// A control file with a trailing stanza must not leak the extra fields into
+		// p.Control, otherwise buildPackagesIndices would emit a second package entry
+		// with an attacker-chosen Filename into the repository "Packages" index.
+		content := bytes.NewBufferString("Package: realpkg\nVersion: 1.0.0\nArchitecture: amd64\nMaintainer: a <a@b.c>\nDescription: real\n\nPackage: openssl\nVersion: 99.0\nArchitecture: amd64\nFilename: pool/main/o/openssl/evil.deb\nDescription: spoofed\n")
+
+		p, err := ParseControlFile(content)
+		assert.NoError(t, err)
+		assert.NotNil(t, p)
+		assert.Equal(t, "realpkg", p.Name)
+		assert.Equal(t, "1.0.0", p.Version)
+		assert.NotContains(t, p.Control, "openssl")
+		assert.NotContains(t, p.Control, "evil.deb")
+	})
+}
+
+func TestValidateDistributionOrComponent(t *testing.T) {
+	bad := []string{
+		"",
+		".",
+		"..",
+		"-stable",
+		".hidden",
+		"a/b",
+		"a b",
+		"bookworm\nSigned-By: evil",
+		"main\nFilename: pool/x",
+		"a\tb",
+	}
+	for _, name := range bad {
+		assert.False(t, IsValidDistributionOrComponent(name), "bad=%q", name)
+	}
+
+	good := []string{
+		"stable",
+		"bookworm",
+		"bookworm-backports",
+		"stable-updates",
+		"main",
+		"non-free-firmware",
+		"a",
+		"1",
+	}
+	for _, name := range good {
+		assert.True(t, IsValidDistributionOrComponent(name), "good=%q", name)
+	}
+}
+
+// TestParseControlFileMultilineDescription verifies a multi-line Description is assembled in order
+// (the parser accumulates it in a strings.Builder); it guards the assembled value, not its timing.
+func TestParseControlFileMultilineDescription(t *testing.T) {
+	var buf bytes.Buffer
+	buf.WriteString("Package: testpkg\nVersion: 1.0\nArchitecture: amd64\nDescription: short summary\n more details\n even more\n")
+
+	p, err := ParseControlFile(&buf)
+	assert.NoError(t, err)
+	assert.NotNil(t, p)
+	assert.Equal(t, "short summary more details even more", p.Metadata.Description)
+}