602 lines
16 KiB
Go
602 lines
16 KiB
Go
// Copyright 2023 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package rpm
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import (
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"bytes"
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"compress/gzip"
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"context"
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"crypto/sha256"
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"encoding/hex"
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"encoding/xml"
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"errors"
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"fmt"
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"io"
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"net/url"
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"strings"
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"time"
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packages_model "code.gitea.io/gitea/models/packages"
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user_model "code.gitea.io/gitea/models/user"
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"code.gitea.io/gitea/modules/json"
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packages_module "code.gitea.io/gitea/modules/packages"
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rpm_module "code.gitea.io/gitea/modules/packages/rpm"
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"code.gitea.io/gitea/modules/setting"
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"code.gitea.io/gitea/modules/util"
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packages_service "code.gitea.io/gitea/services/packages"
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"github.com/keybase/go-crypto/openpgp"
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"github.com/keybase/go-crypto/openpgp/armor"
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"github.com/keybase/go-crypto/openpgp/packet"
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)
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// GetOrCreateRepositoryVersion gets or creates the internal repository package
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// The RPM registry needs multiple metadata files which are stored in this package.
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func GetOrCreateRepositoryVersion(ownerID int64) (*packages_model.PackageVersion, error) {
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return packages_service.GetOrCreateInternalPackageVersion(ownerID, packages_model.TypeRpm, rpm_module.RepositoryPackage, rpm_module.RepositoryVersion)
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}
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// GetOrCreateKeyPair gets or creates the PGP keys used to sign repository metadata files
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func GetOrCreateKeyPair(ownerID int64) (string, string, error) {
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priv, err := user_model.GetSetting(ownerID, rpm_module.SettingKeyPrivate)
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if err != nil && !errors.Is(err, util.ErrNotExist) {
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return "", "", err
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}
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pub, err := user_model.GetSetting(ownerID, rpm_module.SettingKeyPublic)
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if err != nil && !errors.Is(err, util.ErrNotExist) {
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return "", "", err
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}
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if priv == "" || pub == "" {
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priv, pub, err = generateKeypair()
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if err != nil {
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return "", "", err
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}
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if err := user_model.SetUserSetting(ownerID, rpm_module.SettingKeyPrivate, priv); err != nil {
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return "", "", err
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}
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if err := user_model.SetUserSetting(ownerID, rpm_module.SettingKeyPublic, pub); err != nil {
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return "", "", err
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}
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}
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return priv, pub, nil
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}
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func generateKeypair() (string, string, error) {
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e, err := openpgp.NewEntity(setting.AppName, "RPM Registry", "", nil)
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if err != nil {
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return "", "", err
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}
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var priv strings.Builder
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var pub strings.Builder
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w, err := armor.Encode(&priv, openpgp.PrivateKeyType, nil)
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if err != nil {
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return "", "", err
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}
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if err := e.SerializePrivate(w, nil); err != nil {
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return "", "", err
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}
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w.Close()
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w, err = armor.Encode(&pub, openpgp.PublicKeyType, nil)
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if err != nil {
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return "", "", err
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}
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if err := e.Serialize(w); err != nil {
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return "", "", err
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}
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w.Close()
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return priv.String(), pub.String(), nil
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}
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type repoChecksum struct {
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Value string `xml:",chardata"`
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Type string `xml:"type,attr"`
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}
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type repoLocation struct {
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Href string `xml:"href,attr"`
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}
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type repoData struct {
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Type string `xml:"type,attr"`
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Checksum repoChecksum `xml:"checksum"`
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OpenChecksum repoChecksum `xml:"open-checksum"`
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Location repoLocation `xml:"location"`
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Timestamp int64 `xml:"timestamp"`
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Size int64 `xml:"size"`
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OpenSize int64 `xml:"open-size"`
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}
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type packageData struct {
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Package *packages_model.Package
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Version *packages_model.PackageVersion
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Blob *packages_model.PackageBlob
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VersionMetadata *rpm_module.VersionMetadata
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FileMetadata *rpm_module.FileMetadata
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}
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type packageCache = map[*packages_model.PackageFile]*packageData
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// BuildSpecificRepositoryFiles builds metadata files for the repository
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func BuildRepositoryFiles(ctx context.Context, ownerID int64) error {
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pv, err := GetOrCreateRepositoryVersion(ownerID)
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if err != nil {
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return err
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}
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pfs, _, err := packages_model.SearchFiles(ctx, &packages_model.PackageFileSearchOptions{
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OwnerID: ownerID,
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PackageType: packages_model.TypeRpm,
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Query: "%.rpm",
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})
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if err != nil {
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return err
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}
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// Delete the repository files if there are no packages
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if len(pfs) == 0 {
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pfs, err := packages_model.GetFilesByVersionID(ctx, pv.ID)
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if err != nil {
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return err
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}
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for _, pf := range pfs {
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if err := packages_model.DeleteAllProperties(ctx, packages_model.PropertyTypeFile, pf.ID); err != nil {
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return err
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}
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if err := packages_model.DeleteFileByID(ctx, pf.ID); err != nil {
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return err
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}
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}
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return nil
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}
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// Cache data needed for all repository files
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cache := make(packageCache)
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for _, pf := range pfs {
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pv, err := packages_model.GetVersionByID(ctx, pf.VersionID)
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if err != nil {
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return err
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}
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p, err := packages_model.GetPackageByID(ctx, pv.PackageID)
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if err != nil {
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return err
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}
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pb, err := packages_model.GetBlobByID(ctx, pf.BlobID)
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if err != nil {
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return err
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}
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pps, err := packages_model.GetPropertiesByName(ctx, packages_model.PropertyTypeFile, pf.ID, rpm_module.PropertyMetadata)
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if err != nil {
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return err
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}
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pd := &packageData{
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Package: p,
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Version: pv,
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Blob: pb,
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}
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if err := json.Unmarshal([]byte(pv.MetadataJSON), &pd.VersionMetadata); err != nil {
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return err
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}
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if len(pps) > 0 {
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if err := json.Unmarshal([]byte(pps[0].Value), &pd.FileMetadata); err != nil {
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return err
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}
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}
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cache[pf] = pd
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}
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primary, err := buildPrimary(pv, pfs, cache)
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if err != nil {
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return err
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}
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filelists, err := buildFilelists(pv, pfs, cache)
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if err != nil {
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return err
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}
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other, err := buildOther(pv, pfs, cache)
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if err != nil {
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return err
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}
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return buildRepomd(
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pv,
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ownerID,
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[]*repoData{
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primary,
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filelists,
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other,
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},
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)
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}
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// https://docs.pulpproject.org/en/2.19/plugins/pulp_rpm/tech-reference/rpm.html#repomd-xml
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func buildRepomd(pv *packages_model.PackageVersion, ownerID int64, data []*repoData) error {
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type Repomd struct {
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XMLName xml.Name `xml:"repomd"`
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Xmlns string `xml:"xmlns,attr"`
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XmlnsRpm string `xml:"xmlns:rpm,attr"`
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Data []*repoData `xml:"data"`
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}
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var buf bytes.Buffer
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buf.Write([]byte(xml.Header))
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if err := xml.NewEncoder(&buf).Encode(&Repomd{
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Xmlns: "http://linux.duke.edu/metadata/repo",
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XmlnsRpm: "http://linux.duke.edu/metadata/rpm",
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Data: data,
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}); err != nil {
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return err
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}
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priv, _, err := GetOrCreateKeyPair(ownerID)
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if err != nil {
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return err
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}
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block, err := armor.Decode(strings.NewReader(priv))
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if err != nil {
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return err
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}
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e, err := openpgp.ReadEntity(packet.NewReader(block.Body))
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if err != nil {
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return err
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}
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repomdAscContent, _ := packages_module.NewHashedBuffer()
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if err := openpgp.ArmoredDetachSign(repomdAscContent, e, bytes.NewReader(buf.Bytes()), nil); err != nil {
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return err
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}
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repomdContent, _ := packages_module.CreateHashedBufferFromReader(&buf)
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for _, file := range []struct {
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Name string
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Data packages_module.HashedSizeReader
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}{
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{"repomd.xml", repomdContent},
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{"repomd.xml.asc", repomdAscContent},
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} {
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_, err = packages_service.AddFileToPackageVersionInternal(
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pv,
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&packages_service.PackageFileCreationInfo{
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PackageFileInfo: packages_service.PackageFileInfo{
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Filename: file.Name,
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},
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Creator: user_model.NewGhostUser(),
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Data: file.Data,
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IsLead: false,
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OverwriteExisting: true,
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},
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)
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if err != nil {
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return err
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}
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}
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return nil
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}
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// https://docs.pulpproject.org/en/2.19/plugins/pulp_rpm/tech-reference/rpm.html#primary-xml
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func buildPrimary(pv *packages_model.PackageVersion, pfs []*packages_model.PackageFile, c packageCache) (*repoData, error) {
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type Version struct {
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Epoch string `xml:"epoch,attr"`
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Version string `xml:"ver,attr"`
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Release string `xml:"rel,attr"`
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}
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type Checksum struct {
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Checksum string `xml:",chardata"`
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Type string `xml:"type,attr"`
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Pkgid string `xml:"pkgid,attr"`
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}
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type Times struct {
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File uint64 `xml:"file,attr"`
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Build uint64 `xml:"build,attr"`
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}
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type Sizes struct {
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Package int64 `xml:"package,attr"`
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Installed uint64 `xml:"installed,attr"`
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Archive uint64 `xml:"archive,attr"`
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}
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type Location struct {
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Href string `xml:"href,attr"`
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}
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type EntryList struct {
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Entries []*rpm_module.Entry `xml:"rpm:entry"`
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}
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type Format struct {
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License string `xml:"rpm:license"`
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Vendor string `xml:"rpm:vendor"`
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Group string `xml:"rpm:group"`
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Buildhost string `xml:"rpm:buildhost"`
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Sourcerpm string `xml:"rpm:sourcerpm"`
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Provides EntryList `xml:"rpm:provides"`
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Requires EntryList `xml:"rpm:requires"`
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Conflicts EntryList `xml:"rpm:conflicts"`
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Obsoletes EntryList `xml:"rpm:obsoletes"`
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Files []*rpm_module.File `xml:"file"`
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}
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type Package struct {
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XMLName xml.Name `xml:"package"`
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Type string `xml:"type,attr"`
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Name string `xml:"name"`
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Architecture string `xml:"arch"`
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Version Version `xml:"version"`
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Checksum Checksum `xml:"checksum"`
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Summary string `xml:"summary"`
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Description string `xml:"description"`
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Packager string `xml:"packager"`
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URL string `xml:"url"`
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Time Times `xml:"time"`
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Size Sizes `xml:"size"`
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Location Location `xml:"location"`
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Format Format `xml:"format"`
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}
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type Metadata struct {
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XMLName xml.Name `xml:"metadata"`
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Xmlns string `xml:"xmlns,attr"`
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XmlnsRpm string `xml:"xmlns:rpm,attr"`
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PackageCount int `xml:"packages,attr"`
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Packages []*Package `xml:"package"`
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}
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packages := make([]*Package, 0, len(pfs))
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for _, pf := range pfs {
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pd := c[pf]
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files := make([]*rpm_module.File, 0, 3)
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for _, f := range pd.FileMetadata.Files {
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if f.IsExecutable {
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files = append(files, f)
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}
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}
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packages = append(packages, &Package{
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Type: "rpm",
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Name: pd.Package.Name,
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Architecture: pd.FileMetadata.Architecture,
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Version: Version{
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Epoch: pd.FileMetadata.Epoch,
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Version: pd.FileMetadata.Version,
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Release: pd.FileMetadata.Release,
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},
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Checksum: Checksum{
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Type: "sha256",
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Checksum: pd.Blob.HashSHA256,
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Pkgid: "YES",
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},
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Summary: pd.VersionMetadata.Summary,
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Description: pd.VersionMetadata.Description,
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Packager: pd.FileMetadata.Packager,
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URL: pd.VersionMetadata.ProjectURL,
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Time: Times{
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File: pd.FileMetadata.FileTime,
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Build: pd.FileMetadata.BuildTime,
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},
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Size: Sizes{
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Package: pd.Blob.Size,
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Installed: pd.FileMetadata.InstalledSize,
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Archive: pd.FileMetadata.ArchiveSize,
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},
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Location: Location{
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Href: fmt.Sprintf("package/%s/%s/%s", url.PathEscape(pd.Package.Name), url.PathEscape(pd.Version.Version), url.PathEscape(pd.FileMetadata.Architecture)),
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},
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Format: Format{
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License: pd.VersionMetadata.License,
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Vendor: pd.FileMetadata.Vendor,
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Group: pd.FileMetadata.Group,
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Buildhost: pd.FileMetadata.BuildHost,
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Sourcerpm: pd.FileMetadata.SourceRpm,
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Provides: EntryList{
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Entries: pd.FileMetadata.Provides,
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},
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Requires: EntryList{
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Entries: pd.FileMetadata.Requires,
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},
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Conflicts: EntryList{
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Entries: pd.FileMetadata.Conflicts,
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},
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Obsoletes: EntryList{
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Entries: pd.FileMetadata.Obsoletes,
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},
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Files: files,
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},
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})
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}
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return addDataAsFileToRepo(pv, "primary", &Metadata{
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Xmlns: "http://linux.duke.edu/metadata/common",
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XmlnsRpm: "http://linux.duke.edu/metadata/rpm",
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PackageCount: len(pfs),
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Packages: packages,
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})
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}
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// https://docs.pulpproject.org/en/2.19/plugins/pulp_rpm/tech-reference/rpm.html#filelists-xml
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func buildFilelists(pv *packages_model.PackageVersion, pfs []*packages_model.PackageFile, c packageCache) (*repoData, error) { //nolint:dupl
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type Version struct {
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Epoch string `xml:"epoch,attr"`
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Version string `xml:"ver,attr"`
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Release string `xml:"rel,attr"`
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}
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type Package struct {
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Pkgid string `xml:"pkgid,attr"`
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Name string `xml:"name,attr"`
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Architecture string `xml:"arch,attr"`
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Version Version `xml:"version"`
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Files []*rpm_module.File `xml:"file"`
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}
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type Filelists struct {
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XMLName xml.Name `xml:"filelists"`
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Xmlns string `xml:"xmlns,attr"`
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PackageCount int `xml:"packages,attr"`
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Packages []*Package `xml:"package"`
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}
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packages := make([]*Package, 0, len(pfs))
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for _, pf := range pfs {
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pd := c[pf]
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packages = append(packages, &Package{
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Pkgid: pd.Blob.HashSHA256,
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Name: pd.Package.Name,
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Architecture: pd.FileMetadata.Architecture,
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Version: Version{
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Epoch: pd.FileMetadata.Epoch,
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Version: pd.FileMetadata.Version,
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Release: pd.FileMetadata.Release,
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},
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Files: pd.FileMetadata.Files,
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})
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}
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return addDataAsFileToRepo(pv, "filelists", &Filelists{
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Xmlns: "http://linux.duke.edu/metadata/other",
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PackageCount: len(pfs),
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Packages: packages,
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})
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}
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// https://docs.pulpproject.org/en/2.19/plugins/pulp_rpm/tech-reference/rpm.html#other-xml
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func buildOther(pv *packages_model.PackageVersion, pfs []*packages_model.PackageFile, c packageCache) (*repoData, error) { //nolint:dupl
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type Version struct {
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Epoch string `xml:"epoch,attr"`
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Version string `xml:"ver,attr"`
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Release string `xml:"rel,attr"`
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}
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type Package struct {
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Pkgid string `xml:"pkgid,attr"`
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Name string `xml:"name,attr"`
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Architecture string `xml:"arch,attr"`
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Version Version `xml:"version"`
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Changelogs []*rpm_module.Changelog `xml:"changelog"`
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}
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type Otherdata struct {
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XMLName xml.Name `xml:"otherdata"`
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Xmlns string `xml:"xmlns,attr"`
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PackageCount int `xml:"packages,attr"`
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Packages []*Package `xml:"package"`
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}
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packages := make([]*Package, 0, len(pfs))
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for _, pf := range pfs {
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pd := c[pf]
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packages = append(packages, &Package{
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Pkgid: pd.Blob.HashSHA256,
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Name: pd.Package.Name,
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Architecture: pd.FileMetadata.Architecture,
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Version: Version{
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Epoch: pd.FileMetadata.Epoch,
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Version: pd.FileMetadata.Version,
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Release: pd.FileMetadata.Release,
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},
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Changelogs: pd.FileMetadata.Changelogs,
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})
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}
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return addDataAsFileToRepo(pv, "other", &Otherdata{
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Xmlns: "http://linux.duke.edu/metadata/other",
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PackageCount: len(pfs),
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Packages: packages,
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})
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}
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// writtenCounter counts all written bytes
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type writtenCounter struct {
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written int64
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}
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func (wc *writtenCounter) Write(buf []byte) (int, error) {
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n := len(buf)
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wc.written += int64(n)
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return n, nil
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}
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func (wc *writtenCounter) Written() int64 {
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return wc.written
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}
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|
|
func addDataAsFileToRepo(pv *packages_model.PackageVersion, filetype string, obj any) (*repoData, error) {
|
|
content, _ := packages_module.NewHashedBuffer()
|
|
gzw := gzip.NewWriter(content)
|
|
wc := &writtenCounter{}
|
|
h := sha256.New()
|
|
|
|
w := io.MultiWriter(gzw, wc, h)
|
|
_, _ = w.Write([]byte(xml.Header))
|
|
|
|
if err := xml.NewEncoder(w).Encode(obj); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if err := gzw.Close(); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
filename := filetype + ".xml.gz"
|
|
|
|
_, err := packages_service.AddFileToPackageVersionInternal(
|
|
pv,
|
|
&packages_service.PackageFileCreationInfo{
|
|
PackageFileInfo: packages_service.PackageFileInfo{
|
|
Filename: filename,
|
|
},
|
|
Creator: user_model.NewGhostUser(),
|
|
Data: content,
|
|
IsLead: false,
|
|
OverwriteExisting: true,
|
|
},
|
|
)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
_, _, hashSHA256, _ := content.Sums()
|
|
|
|
return &repoData{
|
|
Type: filetype,
|
|
Checksum: repoChecksum{
|
|
Type: "sha256",
|
|
Value: hex.EncodeToString(hashSHA256),
|
|
},
|
|
OpenChecksum: repoChecksum{
|
|
Type: "sha256",
|
|
Value: hex.EncodeToString(h.Sum(nil)),
|
|
},
|
|
Location: repoLocation{
|
|
Href: "repodata/" + filename,
|
|
},
|
|
Timestamp: time.Now().Unix(),
|
|
Size: content.Size(),
|
|
OpenSize: wc.Written(),
|
|
}, nil
|
|
}
|