mirror of
https://codeberg.org/forgejo/forgejo
synced 2024-11-24 10:46:10 +01:00
338 lines
9.4 KiB
Go
338 lines
9.4 KiB
Go
// Copyright 2023 The Gitea Authors. All rights reserved.
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
package alpine
|
|
|
|
import (
|
|
"archive/tar"
|
|
"bytes"
|
|
"compress/gzip"
|
|
"context"
|
|
"crypto"
|
|
"crypto/rand"
|
|
"crypto/rsa"
|
|
"crypto/sha1"
|
|
"crypto/x509"
|
|
"encoding/hex"
|
|
"encoding/pem"
|
|
"errors"
|
|
"fmt"
|
|
"io"
|
|
"strings"
|
|
|
|
packages_model "code.gitea.io/gitea/models/packages"
|
|
alpine_model "code.gitea.io/gitea/models/packages/alpine"
|
|
user_model "code.gitea.io/gitea/models/user"
|
|
"code.gitea.io/gitea/modules/json"
|
|
packages_module "code.gitea.io/gitea/modules/packages"
|
|
alpine_module "code.gitea.io/gitea/modules/packages/alpine"
|
|
"code.gitea.io/gitea/modules/util"
|
|
packages_service "code.gitea.io/gitea/services/packages"
|
|
)
|
|
|
|
const (
|
|
IndexFilename = "APKINDEX"
|
|
IndexArchiveFilename = IndexFilename + ".tar.gz"
|
|
)
|
|
|
|
// GetOrCreateRepositoryVersion gets or creates the internal repository package
|
|
// The Alpine registry needs multiple index files which are stored in this package.
|
|
func GetOrCreateRepositoryVersion(ctx context.Context, ownerID int64) (*packages_model.PackageVersion, error) {
|
|
return packages_service.GetOrCreateInternalPackageVersion(ctx, ownerID, packages_model.TypeAlpine, alpine_module.RepositoryPackage, alpine_module.RepositoryVersion)
|
|
}
|
|
|
|
// GetOrCreateKeyPair gets or creates the RSA keys used to sign repository files
|
|
func GetOrCreateKeyPair(ctx context.Context, ownerID int64) (string, string, error) {
|
|
priv, err := user_model.GetSetting(ctx, ownerID, alpine_module.SettingKeyPrivate)
|
|
if err != nil && !errors.Is(err, util.ErrNotExist) {
|
|
return "", "", err
|
|
}
|
|
|
|
pub, err := user_model.GetSetting(ctx, ownerID, alpine_module.SettingKeyPublic)
|
|
if err != nil && !errors.Is(err, util.ErrNotExist) {
|
|
return "", "", err
|
|
}
|
|
|
|
if priv == "" || pub == "" {
|
|
priv, pub, err = util.GenerateKeyPair(4096)
|
|
if err != nil {
|
|
return "", "", err
|
|
}
|
|
|
|
if err := user_model.SetUserSetting(ctx, ownerID, alpine_module.SettingKeyPrivate, priv); err != nil {
|
|
return "", "", err
|
|
}
|
|
|
|
if err := user_model.SetUserSetting(ctx, ownerID, alpine_module.SettingKeyPublic, pub); err != nil {
|
|
return "", "", err
|
|
}
|
|
}
|
|
|
|
return priv, pub, nil
|
|
}
|
|
|
|
// BuildAllRepositoryFiles (re)builds all repository files for every available distributions, components and architectures
|
|
func BuildAllRepositoryFiles(ctx context.Context, ownerID int64) error {
|
|
pv, err := GetOrCreateRepositoryVersion(ctx, ownerID)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
// 1. Delete all existing repository files
|
|
pfs, err := packages_model.GetFilesByVersionID(ctx, pv.ID)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
for _, pf := range pfs {
|
|
if err := packages_service.DeletePackageFile(ctx, pf); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
// 2. (Re)Build repository files for existing packages
|
|
branches, err := alpine_model.GetBranches(ctx, ownerID)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
for _, branch := range branches {
|
|
repositories, err := alpine_model.GetRepositories(ctx, ownerID, branch)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
for _, repository := range repositories {
|
|
architectures, err := alpine_model.GetArchitectures(ctx, ownerID, repository)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
for _, architecture := range architectures {
|
|
if err := buildPackagesIndex(ctx, ownerID, pv, branch, repository, architecture); err != nil {
|
|
return fmt.Errorf("failed to build repository files [%s/%s/%s]: %w", branch, repository, architecture, err)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// BuildSpecificRepositoryFiles builds index files for the repository
|
|
func BuildSpecificRepositoryFiles(ctx context.Context, ownerID int64, branch, repository, architecture string) error {
|
|
pv, err := GetOrCreateRepositoryVersion(ctx, ownerID)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
return buildPackagesIndex(ctx, ownerID, pv, branch, repository, architecture)
|
|
}
|
|
|
|
type packageData struct {
|
|
Package *packages_model.Package
|
|
Version *packages_model.PackageVersion
|
|
Blob *packages_model.PackageBlob
|
|
VersionMetadata *alpine_module.VersionMetadata
|
|
FileMetadata *alpine_module.FileMetadata
|
|
}
|
|
|
|
type packageCache = map[*packages_model.PackageFile]*packageData
|
|
|
|
// https://wiki.alpinelinux.org/wiki/Apk_spec#APKINDEX_Format
|
|
func buildPackagesIndex(ctx context.Context, ownerID int64, repoVersion *packages_model.PackageVersion, branch, repository, architecture string) error {
|
|
pfs, _, err := packages_model.SearchFiles(ctx, &packages_model.PackageFileSearchOptions{
|
|
OwnerID: ownerID,
|
|
PackageType: packages_model.TypeAlpine,
|
|
Query: "%.apk",
|
|
Properties: map[string]string{
|
|
alpine_module.PropertyBranch: branch,
|
|
alpine_module.PropertyRepository: repository,
|
|
alpine_module.PropertyArchitecture: architecture,
|
|
},
|
|
})
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
// Delete the package indices if there are no packages
|
|
if len(pfs) == 0 {
|
|
pf, err := packages_model.GetFileForVersionByName(ctx, repoVersion.ID, IndexArchiveFilename, fmt.Sprintf("%s|%s|%s", branch, repository, architecture))
|
|
if err != nil && !errors.Is(err, util.ErrNotExist) {
|
|
return err
|
|
} else if pf == nil {
|
|
return nil
|
|
}
|
|
|
|
return packages_service.DeletePackageFile(ctx, pf)
|
|
}
|
|
|
|
// Cache data needed for all repository files
|
|
cache := make(packageCache)
|
|
for _, pf := range pfs {
|
|
pv, err := packages_model.GetVersionByID(ctx, pf.VersionID)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
p, err := packages_model.GetPackageByID(ctx, pv.PackageID)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
pb, err := packages_model.GetBlobByID(ctx, pf.BlobID)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
pps, err := packages_model.GetPropertiesByName(ctx, packages_model.PropertyTypeFile, pf.ID, alpine_module.PropertyMetadata)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
pd := &packageData{
|
|
Package: p,
|
|
Version: pv,
|
|
Blob: pb,
|
|
}
|
|
|
|
if err := json.Unmarshal([]byte(pv.MetadataJSON), &pd.VersionMetadata); err != nil {
|
|
return err
|
|
}
|
|
if len(pps) > 0 {
|
|
if err := json.Unmarshal([]byte(pps[0].Value), &pd.FileMetadata); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
cache[pf] = pd
|
|
}
|
|
|
|
var buf bytes.Buffer
|
|
for _, pf := range pfs {
|
|
pd := cache[pf]
|
|
|
|
fmt.Fprintf(&buf, "C:%s\n", pd.FileMetadata.Checksum)
|
|
fmt.Fprintf(&buf, "P:%s\n", pd.Package.Name)
|
|
fmt.Fprintf(&buf, "V:%s\n", pd.Version.Version)
|
|
fmt.Fprintf(&buf, "A:%s\n", pd.FileMetadata.Architecture)
|
|
if pd.VersionMetadata.Description != "" {
|
|
fmt.Fprintf(&buf, "T:%s\n", pd.VersionMetadata.Description)
|
|
}
|
|
if pd.VersionMetadata.ProjectURL != "" {
|
|
fmt.Fprintf(&buf, "U:%s\n", pd.VersionMetadata.ProjectURL)
|
|
}
|
|
if pd.VersionMetadata.License != "" {
|
|
fmt.Fprintf(&buf, "L:%s\n", pd.VersionMetadata.License)
|
|
}
|
|
fmt.Fprintf(&buf, "S:%d\n", pd.Blob.Size)
|
|
fmt.Fprintf(&buf, "I:%d\n", pd.FileMetadata.Size)
|
|
fmt.Fprintf(&buf, "o:%s\n", pd.FileMetadata.Origin)
|
|
fmt.Fprintf(&buf, "m:%s\n", pd.VersionMetadata.Maintainer)
|
|
fmt.Fprintf(&buf, "t:%d\n", pd.FileMetadata.BuildDate)
|
|
if pd.FileMetadata.CommitHash != "" {
|
|
fmt.Fprintf(&buf, "c:%s\n", pd.FileMetadata.CommitHash)
|
|
}
|
|
if len(pd.FileMetadata.Dependencies) > 0 {
|
|
fmt.Fprintf(&buf, "D:%s\n", strings.Join(pd.FileMetadata.Dependencies, " "))
|
|
}
|
|
if len(pd.FileMetadata.Provides) > 0 {
|
|
fmt.Fprintf(&buf, "p:%s\n", strings.Join(pd.FileMetadata.Provides, " "))
|
|
}
|
|
if pd.FileMetadata.InstallIf != "" {
|
|
fmt.Fprintf(&buf, "i:%s\n", pd.FileMetadata.InstallIf)
|
|
}
|
|
if pd.FileMetadata.ProviderPriority > 0 {
|
|
fmt.Fprintf(&buf, "k:%d\n", pd.FileMetadata.ProviderPriority)
|
|
}
|
|
fmt.Fprint(&buf, "\n")
|
|
}
|
|
|
|
unsignedIndexContent, _ := packages_module.NewHashedBuffer()
|
|
defer unsignedIndexContent.Close()
|
|
|
|
h := sha1.New()
|
|
|
|
if err := writeGzipStream(io.MultiWriter(unsignedIndexContent, h), IndexFilename, buf.Bytes(), true); err != nil {
|
|
return err
|
|
}
|
|
|
|
priv, _, err := GetOrCreateKeyPair(ctx, ownerID)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
privPem, _ := pem.Decode([]byte(priv))
|
|
if privPem == nil {
|
|
return fmt.Errorf("failed to decode private key pem")
|
|
}
|
|
|
|
privKey, err := x509.ParsePKCS1PrivateKey(privPem.Bytes)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
sign, err := rsa.SignPKCS1v15(rand.Reader, privKey, crypto.SHA1, h.Sum(nil))
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
owner, err := user_model.GetUserByID(ctx, ownerID)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
fingerprint, err := util.CreatePublicKeyFingerprint(&privKey.PublicKey)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
signedIndexContent, _ := packages_module.NewHashedBuffer()
|
|
defer signedIndexContent.Close()
|
|
|
|
if err := writeGzipStream(
|
|
signedIndexContent,
|
|
fmt.Sprintf(".SIGN.RSA.%s@%s.rsa.pub", owner.LowerName, hex.EncodeToString(fingerprint)),
|
|
sign,
|
|
false,
|
|
); err != nil {
|
|
return err
|
|
}
|
|
|
|
if _, err := io.Copy(signedIndexContent, unsignedIndexContent); err != nil {
|
|
return err
|
|
}
|
|
|
|
_, err = packages_service.AddFileToPackageVersionInternal(
|
|
ctx,
|
|
repoVersion,
|
|
&packages_service.PackageFileCreationInfo{
|
|
PackageFileInfo: packages_service.PackageFileInfo{
|
|
Filename: IndexArchiveFilename,
|
|
CompositeKey: fmt.Sprintf("%s|%s|%s", branch, repository, architecture),
|
|
},
|
|
Creator: user_model.NewGhostUser(),
|
|
Data: signedIndexContent,
|
|
IsLead: false,
|
|
OverwriteExisting: true,
|
|
},
|
|
)
|
|
return err
|
|
}
|
|
|
|
func writeGzipStream(w io.Writer, filename string, content []byte, addTarEnd bool) error {
|
|
zw := gzip.NewWriter(w)
|
|
defer zw.Close()
|
|
|
|
tw := tar.NewWriter(zw)
|
|
if addTarEnd {
|
|
defer tw.Close()
|
|
}
|
|
hdr := &tar.Header{
|
|
Name: filename,
|
|
Mode: 0o600,
|
|
Size: int64(len(content)),
|
|
}
|
|
if err := tw.WriteHeader(hdr); err != nil {
|
|
return err
|
|
}
|
|
if _, err := tw.Write(content); err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|