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github_packages.go
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/
github_packages.go
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package docker_registry
import (
"context"
"errors"
"fmt"
"net/http"
"strings"
"sync"
"github.com/google/go-containerregistry/pkg/name"
"github.com/werf/werf/pkg/image"
)
const (
GitHubPackagesImplementationName = "github"
GitHubPackagesRegistryAddress = "ghcr.io"
gitHubPackagesUnauthorizedErrPrefix = "gitHub packages unauthorized: "
gitHubPackagesForbiddenErrPrefix = "gitHub packages forbidden: "
)
var gitHubPackagesPatterns = []string{"^ghcr\\.io", "^docker\\.pkg\\.github\\.com"}
type (
GitHubPackagesUnauthorizedErr apiError
GitHubPackagesForbiddenErr apiError
)
func NewGitHubPackagesUnauthorizedErr(err error) GitHubPackagesUnauthorizedErr {
return GitHubPackagesUnauthorizedErr{
error: errors.New(gitHubPackagesUnauthorizedErrPrefix + err.Error()),
}
}
func IsGitHubPackagesUnauthorizedErr(err error) bool {
return strings.Contains(err.Error(), gitHubPackagesUnauthorizedErrPrefix)
}
func NewGitHubPackagesForbiddenErr(err error) GitHubPackagesForbiddenErr {
return GitHubPackagesForbiddenErr{
error: errors.New(gitHubPackagesForbiddenErrPrefix + err.Error()),
}
}
func IsGitHubPackagesForbiddenErr(err error) bool {
return strings.Contains(err.Error(), gitHubPackagesForbiddenErrPrefix)
}
type gitHubPackages struct {
*defaultImplementation
gitHubCredentials
gitHubApi
isUserCache sync.Map
tagIDPackageVersionIDCache map[string]string
getTagPackageVersionIDLock sync.Mutex
}
type gitHubCredentials struct {
token string
}
type gitHubPackagesOptions struct {
defaultImplementationOptions
gitHubCredentials
}
func newGitHubPackages(options gitHubPackagesOptions) (*gitHubPackages, error) {
d, err := newDefaultImplementation(options.defaultImplementationOptions)
if err != nil {
return nil, err
}
gitHub := &gitHubPackages{
defaultImplementation: d,
gitHubCredentials: options.gitHubCredentials,
gitHubApi: newGitHubApi(),
isUserCache: sync.Map{},
tagIDPackageVersionIDCache: map[string]string{},
getTagPackageVersionIDLock: sync.Mutex{},
}
return gitHub, nil
}
func (r *gitHubPackages) DeleteRepoImage(ctx context.Context, repoImage *image.Info) error {
orgOrUserName, packageName, err := r.parseReference(repoImage.Repository)
if err != nil {
return err
}
isUser, err := r.isUser(ctx, orgOrUserName)
if err != nil {
return err
}
packageVersionId, err := r.getTagPackageVersionID(ctx, orgOrUserName, packageName, repoImage.Tag)
if err != nil {
return err
}
if isUser {
if resp, err := r.gitHubApi.deleteUserContainerPackageVersion(ctx, packageName, packageVersionId, r.token); err != nil {
return r.handleFailedApiResponse(resp, err)
}
return nil
}
if resp, err := r.gitHubApi.deleteOrgContainerPackageVersion(ctx, orgOrUserName, packageName, packageVersionId, r.token); err != nil {
return r.handleFailedApiResponse(resp, err)
}
return nil
}
func (r *gitHubPackages) DeleteRepo(ctx context.Context, reference string) error {
orgOrUserName, packageName, err := r.parseReference(reference)
if err != nil {
return err
}
isUser, err := r.isUser(ctx, orgOrUserName)
if err != nil {
return err
}
if isUser {
if resp, err := r.gitHubApi.deleteUserContainerPackage(ctx, packageName, r.token); err != nil {
return r.handleFailedApiResponse(resp, err)
}
return nil
}
if resp, err := r.gitHubApi.deleteOrgContainerPackage(ctx, orgOrUserName, packageName, r.token); err != nil {
return r.handleFailedApiResponse(resp, err)
}
return nil
}
func (r *gitHubPackages) getTagPackageVersionID(ctx context.Context, orgOrUserName, packageName, tag string) (string, error) {
r.getTagPackageVersionIDLock.Lock()
defer r.getTagPackageVersionIDLock.Unlock()
if versionID, ok := r.tagIDPackageVersionIDCache[r.tagID(orgOrUserName, packageName, tag)]; ok {
return versionID, nil
}
if err := r.populateTagIDPackageVersionIDCache(ctx, orgOrUserName, packageName); err != nil {
return "", err
}
if versionID, ok := r.tagIDPackageVersionIDCache[r.tagID(orgOrUserName, packageName, tag)]; ok {
return versionID, nil
}
return "", fmt.Errorf("container package version id for tag %q not found", tag)
}
func (r *gitHubPackages) populateTagIDPackageVersionIDCache(ctx context.Context, orgOrUserName, packageName string) error {
isUser, err := r.isUser(ctx, orgOrUserName)
if err != nil {
return err
}
handleFunc := func(versionList []githubApiVersion) error {
for _, version := range versionList {
for _, versionTag := range version.Metadata.Container.Tags {
r.tagIDPackageVersionIDCache[r.tagID(orgOrUserName, packageName, versionTag)] = fmt.Sprintf("%d", version.Id)
}
}
return nil
}
if isUser {
if resp, err := r.gitHubApi.getUserContainerPackageVersionsInBatches(ctx, packageName, r.token, handleFunc); err != nil {
return r.handleFailedApiResponse(resp, err)
}
return nil
}
if resp, err := r.gitHubApi.getOrgContainerPackageVersionsInBatches(ctx, orgOrUserName, packageName, r.token, handleFunc); err != nil {
return r.handleFailedApiResponse(resp, err)
}
return nil
}
func (r *gitHubPackages) tagID(orgOrUserName, packageName, tag string) string {
return strings.Join([]string{orgOrUserName, packageName, tag}, "-")
}
func (r *gitHubPackages) isUser(ctx context.Context, orgOrUserName string) (bool, error) {
isUser, ok := r.isUserCache.Load(orgOrUserName)
if ok {
return isUser.(bool), nil
}
user, resp, err := r.gitHubApi.getUser(ctx, orgOrUserName, r.token)
if err != nil {
return false, r.handleFailedApiResponse(resp, err)
}
isUser = user.Type == "User"
r.isUserCache.Store(orgOrUserName, isUser)
return isUser.(bool), nil
}
func (r *gitHubPackages) handleFailedApiResponse(resp *http.Response, err error) error {
if resp != nil {
switch resp.StatusCode {
case http.StatusUnauthorized:
return NewGitHubPackagesUnauthorizedErr(err)
case http.StatusForbidden:
return NewGitHubPackagesForbiddenErr(err)
}
}
return err
}
func (r *gitHubPackages) String() string {
return GitHubPackagesImplementationName
}
func (r *gitHubPackages) parseReference(reference string) (string, string, error) {
parsedReference, err := name.NewTag(reference)
if err != nil {
return "", "", fmt.Errorf("unable to parse reference %q: %s", reference, err)
}
repositoryWithoutRegistry := strings.TrimPrefix(parsedReference.RepositoryStr(), parsedReference.RegistryStr()+"/")
orgOrUserNameAndPackageName := strings.SplitN(repositoryWithoutRegistry, "/", 2)
orgOrUserName := orgOrUserNameAndPackageName[0]
packageName := strings.ReplaceAll(orgOrUserNameAndPackageName[1], "/", "%2F")
if orgOrUserName == "" || packageName == "" {
return "", "", fmt.Errorf("unexpected reference %s: cannot parse organization and package name", reference)
}
return orgOrUserName, packageName, nil
}