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d325c8b5f4
PR (linter: upgrade linter version #405) triggered lint job which failed with many errors generated by various linters. Configurations were added to golangcilint.yaml and several refactorings were made in order to improve the results of the linter. maintidx linter disabled Signed-off-by: Alex Stan <alexandrustan96@yahoo.ro>
82 lines
2.5 KiB
Go
82 lines
2.5 KiB
Go
package digestinfo
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import (
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"strings"
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ispec "github.com/opencontainers/image-spec/specs-go/v1"
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"zotregistry.io/zot/pkg/extensions/search/common"
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"zotregistry.io/zot/pkg/log"
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"zotregistry.io/zot/pkg/storage"
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)
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// DigestInfo implements searching by manifes/config/layer digest.
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type DigestInfo struct {
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Log log.Logger
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LayoutUtils *common.OciLayoutUtils
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}
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// NewDigestInfo initializes a new DigestInfo object.
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func NewDigestInfo(storeController storage.StoreController, log log.Logger) *DigestInfo {
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layoutUtils := common.NewOciLayoutUtils(storeController, log)
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return &DigestInfo{Log: log, LayoutUtils: layoutUtils}
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}
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// FilterImagesByDigest returns a list of image tags in a repository matching a specific divest.
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func (digestinfo DigestInfo) GetImageTagsByDigest(repo, digest string) ([]*string, error) {
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uniqueTags := []*string{}
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manifests, err := digestinfo.LayoutUtils.GetImageManifests(repo)
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if err != nil {
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digestinfo.Log.Error().Err(err).Msg("unable to read image manifests")
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return uniqueTags, err
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}
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for _, manifest := range manifests {
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imageDigest := manifest.Digest
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val, ok := manifest.Annotations[ispec.AnnotationRefName]
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if ok {
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imageBlobManifest, err := digestinfo.LayoutUtils.GetImageBlobManifest(repo, imageDigest)
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if err != nil {
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digestinfo.Log.Error().Err(err).Msg("unable to read image blob manifest")
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return uniqueTags, err
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}
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tags := []*string{}
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// Check the image manigest in index.json matches the search digest
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// This is a blob with mediaType application/vnd.oci.image.manifest.v1+json
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if strings.Contains(manifest.Digest.String(), digest) {
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tags = append(tags, &val)
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}
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// Check the image config matches the search digest
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// This is a blob with mediaType application/vnd.oci.image.config.v1+json
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if strings.Contains(imageBlobManifest.Config.Digest.Algorithm+":"+imageBlobManifest.Config.Digest.Hex, digest) {
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tags = append(tags, &val)
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}
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// Check to see if the individual layers in the oci image manifest match the digest
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// These are blobs with mediaType application/vnd.oci.image.layer.v1.tar+gzip
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for _, layer := range imageBlobManifest.Layers {
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if strings.Contains(layer.Digest.Algorithm+":"+layer.Digest.Hex, digest) {
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tags = append(tags, &val)
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}
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}
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keys := make(map[string]bool)
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for _, entry := range tags {
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if _, value := keys[*entry]; !value {
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uniqueTags = append(uniqueTags, entry)
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keys[*entry] = true
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}
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}
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}
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}
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return uniqueTags, nil
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}
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