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zot/pkg/storage/local_test.go
alexstan12 16e9822c7f
Add fuzz tests for storage_fs (#601)
This commit uses native go fuzzing to fuzz test implementations
of storage in storage_fs.

moved fuzzing testdata for storage_fs in separate repo

added make target and script for importing fuzz data and running all fuzz tests

Signed-off-by: Alex Stan <alexandrustan96@yahoo.ro>
2022-07-27 20:37:55 +03:00

2097 lines
57 KiB
Go

package storage_test
import (
"bytes"
"crypto/rand"
_ "crypto/sha256"
"encoding/json"
"errors"
"fmt"
"io"
"io/fs"
"io/ioutil"
"math/big"
"os"
"path"
"strings"
"syscall"
"testing"
"time"
godigest "github.com/opencontainers/go-digest"
imeta "github.com/opencontainers/image-spec/specs-go"
ispec "github.com/opencontainers/image-spec/specs-go/v1"
artifactspec "github.com/oras-project/artifacts-spec/specs-go/v1"
"github.com/rs/zerolog"
. "github.com/smartystreets/goconvey/convey"
zerr "zotregistry.io/zot/errors"
"zotregistry.io/zot/pkg/extensions/monitoring"
"zotregistry.io/zot/pkg/log"
"zotregistry.io/zot/pkg/storage"
"zotregistry.io/zot/pkg/test"
)
const (
tag = "1.0"
)
func TestStorageFSAPIs(t *testing.T) {
dir := t.TempDir()
log := log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, log)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay, true,
true, log, metrics, nil)
Convey("Repo layout", t, func(c C) {
Convey("Bad image manifest", func() {
upload, err := imgStore.NewBlobUpload(repoName)
So(err, ShouldBeNil)
So(upload, ShouldNotBeEmpty)
content := []byte("test-data1")
buf := bytes.NewBuffer(content)
buflen := buf.Len()
digest := godigest.FromBytes(content)
blob, err := imgStore.PutBlobChunk(repoName, upload, 0, int64(buflen), buf)
So(err, ShouldBeNil)
So(blob, ShouldEqual, buflen)
err = imgStore.FinishBlobUpload(repoName, upload, buf, digest.String())
So(err, ShouldBeNil)
annotationsMap := make(map[string]string)
annotationsMap[ispec.AnnotationRefName] = tag
cblob, cdigest := test.GetRandomImageConfig()
_, clen, err := imgStore.FullBlobUpload(repoName, bytes.NewReader(cblob), cdigest.String())
So(err, ShouldBeNil)
So(clen, ShouldEqual, len(cblob))
hasBlob, _, err := imgStore.CheckBlob(repoName, cdigest.String())
So(err, ShouldBeNil)
So(hasBlob, ShouldEqual, true)
manifest := ispec.Manifest{
Config: ispec.Descriptor{
MediaType: "application/vnd.oci.image.config.v1+json",
Digest: cdigest,
Size: int64(len(cblob)),
},
Layers: []ispec.Descriptor{
{
MediaType: "application/vnd.oci.image.layer.v1.tar",
Digest: digest,
Size: int64(buflen),
},
},
Annotations: annotationsMap,
}
manifest.SchemaVersion = 2
manifestBuf, err := json.Marshal(manifest)
So(err, ShouldBeNil)
digest = godigest.FromBytes(manifestBuf)
err = os.Chmod(path.Join(imgStore.RootDir(), repoName, "index.json"), 0o000)
if err != nil {
panic(err)
}
_, err = imgStore.PutImageManifest(repoName, "1.0", ispec.MediaTypeImageManifest, manifestBuf)
So(err, ShouldNotBeNil)
err = os.Chmod(path.Join(imgStore.RootDir(), repoName, "index.json"), 0o755)
if err != nil {
panic(err)
}
_, err = imgStore.PutImageManifest(repoName, "1.0", ispec.MediaTypeImageManifest, manifestBuf)
So(err, ShouldBeNil)
manifestPath := path.Join(imgStore.RootDir(), repoName, "blobs", digest.Algorithm().String(), digest.Encoded())
err = os.Chmod(manifestPath, 0o000)
if err != nil {
panic(err)
}
_, _, _, err = imgStore.GetImageManifest(repoName, digest.String())
So(err, ShouldNotBeNil)
err = os.Remove(manifestPath)
if err != nil {
panic(err)
}
_, _, _, err = imgStore.GetImageManifest(repoName, digest.String())
So(err, ShouldNotBeNil)
err = os.Chmod(path.Join(imgStore.RootDir(), repoName), 0o000)
if err != nil {
panic(err)
}
_, err = imgStore.PutImageManifest(repoName, "2.0", ispec.MediaTypeImageManifest, manifestBuf)
So(err, ShouldNotBeNil)
err = os.Chmod(path.Join(imgStore.RootDir(), repoName), 0o755)
if err != nil {
panic(err)
}
// invalid GetReferrers
_, err = imgStore.GetReferrers("invalid", "invalid", "invalid")
So(err, ShouldNotBeNil)
_, err = imgStore.GetReferrers(repoName, "invalid", "invalid")
So(err, ShouldNotBeNil)
_, err = imgStore.GetReferrers(repoName, digest.String(), "invalid")
So(err, ShouldNotBeNil)
// invalid DeleteImageManifest
indexPath := path.Join(imgStore.RootDir(), repoName, "index.json")
err = os.Chmod(indexPath, 0o000)
if err != nil {
panic(err)
}
err = imgStore.DeleteImageManifest(repoName, digest.String())
So(err, ShouldNotBeNil)
err = os.RemoveAll(path.Join(imgStore.RootDir(), repoName))
if err != nil {
panic(err)
}
})
})
}
func TestGetReferrers(t *testing.T) {
dir := t.TempDir()
log := log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, log)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay, true, true, log, metrics, nil)
Convey("Get referrers", t, func(c C) {
err := test.CopyFiles("../../test/data/zot-test", path.Join(dir, "zot-test"))
So(err, ShouldBeNil)
body := []byte("this is a blob")
digest := godigest.FromBytes(body)
buf := bytes.NewBuffer(body)
buflen := buf.Len()
err = ioutil.WriteFile(path.Join(imgStore.RootDir(), //nolint: gosec
"zot-test", "blobs", digest.Algorithm().String(), digest.Encoded()),
buf.Bytes(), 0o644)
So(err, ShouldBeNil)
_, n, err := imgStore.FullBlobUpload("zot-test", buf, digest.String())
So(err, ShouldBeNil)
So(n, ShouldEqual, buflen)
artifactManifest := artifactspec.Manifest{}
artifactManifest.ArtifactType = "signature-example"
artifactManifest.Subject = artifactspec.Descriptor{
MediaType: ispec.MediaTypeImageManifest,
Digest: digest,
Size: int64(buflen),
}
artifactManifest.Blobs = []artifactspec.Descriptor{}
manBuf, err := json.Marshal(artifactManifest)
manBufLen := len(manBuf)
So(err, ShouldBeNil)
manDigest := godigest.FromBytes(manBuf)
_, err = imgStore.PutImageManifest("zot-test", manDigest.Encoded(), artifactspec.MediaTypeArtifactManifest, manBuf)
So(err, ShouldBeNil)
So(err, ShouldBeNil)
descriptors, err := imgStore.GetReferrers("zot-test", digest.String(), "signature-example")
So(err, ShouldBeNil)
So(descriptors, ShouldNotBeEmpty)
So(descriptors[0].ArtifactType, ShouldEqual, "signature-example")
So(descriptors[0].MediaType, ShouldEqual, artifactspec.MediaTypeArtifactManifest)
So(descriptors[0].Size, ShouldEqual, manBufLen)
So(descriptors[0].Digest, ShouldEqual, manDigest)
})
}
func FuzzNewBlobUpload(f *testing.F) {
f.Fuzz(func(t *testing.T, data string) {
dir := t.TempDir()
defer os.RemoveAll(dir)
t.Logf("Input argument is %s", data)
log := log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, log)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay, true, true, log, metrics, nil)
_, err := imgStore.NewBlobUpload(data)
if err != nil {
if isKnownErr(err) {
return
}
t.Error(err)
}
})
}
func FuzzPutBlobChunk(f *testing.F) {
f.Fuzz(func(t *testing.T, data string) {
dir := t.TempDir()
defer os.RemoveAll(dir)
t.Logf("Input argument is %s", data)
log := log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, log)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay, true, true, log, metrics, nil)
repoName := data
uuid, err := imgStore.NewBlobUpload(repoName)
if err != nil {
if isKnownErr(err) {
return
}
t.Error(err)
}
buf := bytes.NewBuffer([]byte(data))
buflen := buf.Len()
_, err = imgStore.PutBlobChunk(repoName, uuid, 0, int64(buflen), buf)
if err != nil {
t.Error(err)
}
})
}
func FuzzPutBlobChunkStreamed(f *testing.F) {
f.Fuzz(func(t *testing.T, data string) {
dir := t.TempDir()
defer os.RemoveAll(dir)
t.Logf("Input argument is %s", data)
log := log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, log)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay, true, true, log, metrics, nil)
repoName := data
uuid, err := imgStore.NewBlobUpload(repoName)
if err != nil {
if isKnownErr(err) {
return
}
t.Error(err)
}
buf := bytes.NewBuffer([]byte(data))
_, err = imgStore.PutBlobChunkStreamed(repoName, uuid, buf)
if err != nil {
t.Error(err)
}
})
}
func FuzzGetBlobUpload(f *testing.F) {
f.Fuzz(func(t *testing.T, data1 string, data2 string) {
dir := t.TempDir()
defer os.RemoveAll(dir)
log := log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, log)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay, true, true, log, metrics, nil)
_, err := imgStore.GetBlobUpload(data1, data2)
if err != nil {
if errors.Is(err, zerr.ErrUploadNotFound) || isKnownErr(err) {
return
}
t.Error(err)
}
})
}
func FuzzTestPutGetImageManifest(f *testing.F) {
f.Fuzz(func(t *testing.T, data []byte) {
log := &log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, *log)
dir := t.TempDir()
defer os.RemoveAll(dir)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay, true, true, *log, metrics, nil)
cblob, cdigest := test.GetRandomImageConfig()
ldigest, lblob, err := newRandomBlobForFuzz(data)
if err != nil {
t.Errorf("error occurred while generating random blob, %v", err)
}
_, _, err = imgStore.FullBlobUpload(repoName, bytes.NewReader(cblob), cdigest.String())
if err != nil {
t.Error(err)
}
_, _, err = imgStore.FullBlobUpload(repoName, bytes.NewReader(lblob), ldigest.String())
if err != nil {
t.Error(err)
}
manifest, err := NewRandomImgManifest(data, cdigest, ldigest, cblob, lblob)
if err != nil {
t.Error(err)
}
manifestBuf, err := json.Marshal(manifest)
if err != nil {
t.Errorf("Error %v occurred while marshaling manifest", err)
}
mdigest := godigest.FromBytes(manifestBuf)
_, err = imgStore.PutImageManifest(repoName, mdigest.String(), ispec.MediaTypeImageManifest, manifestBuf)
if err != nil && errors.Is(err, zerr.ErrBadManifest) {
t.Errorf("the error that occurred is %v \n", err)
}
_, _, _, err = imgStore.GetImageManifest(repoName, mdigest.String())
if err != nil {
t.Errorf("the error that occurred is %v \n", err)
}
})
}
func FuzzTestPutDeleteImageManifest(f *testing.F) {
f.Fuzz(func(t *testing.T, data []byte) {
log := &log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, *log)
dir := t.TempDir()
defer os.RemoveAll(dir)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay, true, true, *log, metrics, nil)
cblob, cdigest := test.GetRandomImageConfig()
ldigest, lblob, err := newRandomBlobForFuzz(data)
if err != nil {
t.Errorf("error occurred while generating random blob, %v", err)
}
_, _, err = imgStore.FullBlobUpload(repoName, bytes.NewReader(cblob), cdigest.String())
if err != nil {
t.Error(err)
}
_, _, err = imgStore.FullBlobUpload(repoName, bytes.NewReader(lblob), ldigest.String())
if err != nil {
t.Error(err)
}
manifest, err := NewRandomImgManifest(data, cdigest, ldigest, cblob, lblob)
if err != nil {
t.Error(err)
}
manifestBuf, err := json.Marshal(manifest)
if err != nil {
t.Errorf("Error %v occurred while marshaling manifest", err)
}
mdigest := godigest.FromBytes(manifestBuf)
_, err = imgStore.PutImageManifest(repoName, mdigest.String(), ispec.MediaTypeImageManifest, manifestBuf)
if err != nil && errors.Is(err, zerr.ErrBadManifest) {
t.Errorf("the error that occurred is %v \n", err)
}
err = imgStore.DeleteImageManifest(repoName, mdigest.String())
if err != nil {
if isKnownErr(err) {
return
}
t.Errorf("the error that occurred is %v \n", err)
}
})
}
// no integration with PutImageManifest, just throw fuzz data.
func FuzzTestDeleteImageManifest(f *testing.F) {
f.Fuzz(func(t *testing.T, data []byte) {
log := &log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, *log)
dir := t.TempDir()
defer os.RemoveAll(dir)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay, true, true, *log, metrics, nil)
digest, _, err := newRandomBlobForFuzz(data)
if err != nil {
return
}
err = imgStore.DeleteImageManifest(string(data), digest.String())
if err != nil {
if errors.Is(err, zerr.ErrRepoNotFound) || isKnownErr(err) {
return
}
t.Error(err)
}
})
}
func FuzzDirExists(f *testing.F) {
f.Fuzz(func(t *testing.T, data string) { //nolint: unusedparams
_ = storage.DirExists(data)
})
}
func FuzzInitRepo(f *testing.F) {
f.Fuzz(func(t *testing.T, data string) {
log := &log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, *log)
dir := t.TempDir()
defer os.RemoveAll(dir)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay, true, true, *log, metrics, nil)
err := imgStore.InitRepo(data)
if err != nil {
if isKnownErr(err) {
return
}
t.Error(err)
}
})
}
func FuzzInitValidateRepo(f *testing.F) {
f.Fuzz(func(t *testing.T, data string) {
log := &log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, *log)
dir := t.TempDir()
defer os.RemoveAll(dir)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay, true, true, *log, metrics, nil)
err := imgStore.InitRepo(data)
if err != nil {
if isKnownErr(err) {
return
}
t.Error(err)
}
_, err = imgStore.ValidateRepo(data)
if err != nil {
if errors.Is(err, zerr.ErrRepoNotFound) || errors.Is(err, zerr.ErrRepoBadVersion) || isKnownErr(err) {
return
}
t.Error(err)
}
})
}
func FuzzGetImageTags(f *testing.F) {
f.Fuzz(func(t *testing.T, data string) {
log := &log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, *log)
dir := t.TempDir()
defer os.RemoveAll(dir)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay, true, true, *log, metrics, nil)
_, err := imgStore.GetImageTags(data)
if err != nil {
if errors.Is(err, zerr.ErrRepoNotFound) || isKnownErr(err) {
return
}
t.Error(err)
}
})
}
func FuzzBlobUploadPath(f *testing.F) {
f.Fuzz(func(t *testing.T, repo, uuid string) {
log := &log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, *log)
dir := t.TempDir()
defer os.RemoveAll(dir)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay, true, true, *log, metrics, nil)
_ = imgStore.BlobUploadPath(repo, uuid)
})
}
func FuzzBlobUploadInfo(f *testing.F) {
f.Fuzz(func(t *testing.T, data string, uuid string) {
log := &log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, *log)
dir := t.TempDir()
defer os.RemoveAll(dir)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay, true, true, *log, metrics, nil)
repo := data
_, err := imgStore.BlobUploadInfo(repo, uuid)
if err != nil {
if isKnownErr(err) {
return
}
t.Error(err)
}
})
}
func FuzzTestGetImageManifest(f *testing.F) {
f.Fuzz(func(t *testing.T, data string) {
dir := t.TempDir()
defer os.RemoveAll(dir)
log := log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, log)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay, true, true, log, metrics, nil)
repoName := data
digest := godigest.FromBytes([]byte(data))
_, _, _, err := imgStore.GetImageManifest(repoName, digest.String())
if err != nil {
if isKnownErr(err) {
return
}
t.Error(err)
}
})
}
func FuzzFinishBlobUpload(f *testing.F) {
f.Fuzz(func(t *testing.T, data string) {
dir := t.TempDir()
defer os.RemoveAll(dir)
log := log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, log)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay, true, true, log, metrics, nil)
repoName := data
upload, err := imgStore.NewBlobUpload(repoName)
if err != nil {
if isKnownErr(err) {
return
}
t.Error(err)
}
content := []byte(data)
buf := bytes.NewBuffer(content)
buflen := buf.Len()
digest := godigest.FromBytes(content)
_, err = imgStore.PutBlobChunk(repoName, upload, 0, int64(buflen), buf)
if err != nil {
if isKnownErr(err) {
return
}
t.Error(err)
}
err = imgStore.FinishBlobUpload(repoName, upload, buf, digest.String())
if err != nil {
if isKnownErr(err) {
return
}
t.Error(err)
}
})
}
func FuzzFullBlobUpload(f *testing.F) {
f.Fuzz(func(t *testing.T, data []byte) {
log := &log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, *log)
repoName := "test"
dir := t.TempDir()
defer os.RemoveAll(dir)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay, true, true, *log, metrics, nil)
ldigest, lblob, err := newRandomBlobForFuzz(data)
if err != nil {
t.Errorf("error occurred while generating random blob, %v", err)
}
_, _, err = imgStore.FullBlobUpload(repoName, bytes.NewReader(lblob), ldigest.String())
if err != nil {
if isKnownErr(err) {
return
}
t.Error(err)
}
})
}
func FuzzDedupeBlob(f *testing.F) {
f.Fuzz(func(t *testing.T, data string) {
log := &log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, *log)
dir := t.TempDir()
defer os.RemoveAll(dir)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay, true, true, *log, metrics, nil)
blobDigest := godigest.FromString(data)
// replacement for .uploads folder, usually retrieved from BlobUploadPath
src := path.Join(imgStore.RootDir(), "src")
blob := bytes.NewReader([]byte(data))
_, _, err := imgStore.FullBlobUpload("repoName", blob, blobDigest.String())
if err != nil {
t.Error(err)
}
dst := imgStore.BlobPath("repoName", blobDigest)
err = os.MkdirAll(src, 0o755)
if err != nil {
t.Error(err)
}
err = imgStore.DedupeBlob(src, blobDigest, dst)
if err != nil {
t.Error(err)
}
})
}
func FuzzDeleteBlobUpload(f *testing.F) {
f.Fuzz(func(t *testing.T, data string) {
log := &log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, *log)
repoName := data
dir := t.TempDir()
defer os.RemoveAll(dir)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay, true, true, *log, metrics, nil)
uuid, err := imgStore.NewBlobUpload(repoName)
if err != nil {
if isKnownErr(err) {
return
}
t.Error(err)
}
err = imgStore.DeleteBlobUpload(repoName, uuid)
if err != nil {
t.Error(err)
}
})
}
func FuzzBlobPath(f *testing.F) {
f.Fuzz(func(t *testing.T, data string) {
log := &log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, *log)
repoName := data
dir := t.TempDir()
defer os.RemoveAll(dir)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay, true, true, *log, metrics, nil)
digest := godigest.FromString(data)
_ = imgStore.BlobPath(repoName, digest)
})
}
func FuzzCheckBlob(f *testing.F) {
f.Fuzz(func(t *testing.T, data string) {
log := &log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, *log)
repoName := data
dir := t.TempDir()
defer os.RemoveAll(dir)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay, true, true, *log, metrics, nil)
digest := godigest.FromString(data)
_, _, err := imgStore.FullBlobUpload(repoName, bytes.NewReader([]byte(data)), digest.String())
if err != nil {
if isKnownErr(err) {
return
}
t.Error(err)
}
_, _, err = imgStore.CheckBlob(repoName, digest.String())
if err != nil {
t.Error(err)
}
})
}
func FuzzGetBlob(f *testing.F) {
f.Fuzz(func(t *testing.T, data string) {
log := &log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, *log)
repoName := data
dir := t.TempDir()
defer os.RemoveAll(dir)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay, true, true, *log, metrics, nil)
digest := godigest.FromString(data)
_, _, err := imgStore.FullBlobUpload(repoName, bytes.NewReader([]byte(data)), digest.String())
if err != nil {
if isKnownErr(err) {
return
}
t.Error(err)
}
_, _, err = imgStore.GetBlob(repoName, digest.String(), "application/vnd.oci.image.layer.v1.tar+gzip")
if err != nil {
if isKnownErr(err) {
return
}
t.Error(err)
}
})
}
func FuzzDeleteBlob(f *testing.F) {
f.Fuzz(func(t *testing.T, data string) {
log := &log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, *log)
repoName := data
dir := t.TempDir()
defer os.RemoveAll(dir)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay, true, true, *log, metrics, nil)
digest := godigest.FromString(data)
_, _, err := imgStore.FullBlobUpload(repoName, bytes.NewReader([]byte(data)), digest.String())
if err != nil {
if isKnownErr(err) {
return
}
t.Error(err)
}
err = imgStore.DeleteBlob(repoName, digest.String())
if err != nil {
if isKnownErr(err) {
return
}
t.Error(err)
}
})
}
func FuzzGetIndexContent(f *testing.F) {
f.Fuzz(func(t *testing.T, data string) {
log := &log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, *log)
repoName := data
dir := t.TempDir()
defer os.RemoveAll(dir)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay, true, true, *log, metrics, nil)
digest := godigest.FromString(data)
_, _, err := imgStore.FullBlobUpload(repoName, bytes.NewReader([]byte(data)), digest.String())
if err != nil {
if isKnownErr(err) {
return
}
t.Error(err)
}
_, err = imgStore.GetIndexContent(repoName)
if err != nil {
if isKnownErr(err) {
return
}
t.Error(err)
}
})
}
func FuzzGetBlobContent(f *testing.F) {
f.Fuzz(func(t *testing.T, data string) {
log := &log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, *log)
repoName := data
dir := t.TempDir()
defer os.RemoveAll(dir)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay, true, true, *log, metrics, nil)
digest := godigest.FromString(data)
_, _, err := imgStore.FullBlobUpload(repoName, bytes.NewReader([]byte(data)), digest.String())
if err != nil {
if isKnownErr(err) {
return
}
t.Error(err)
}
_, err = imgStore.GetBlobContent(repoName, digest.String())
if err != nil {
if isKnownErr(err) {
return
}
t.Error(err)
}
})
}
func FuzzGetReferrers(f *testing.F) {
f.Fuzz(func(t *testing.T, data string) {
log := &log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, *log)
dir := t.TempDir()
defer os.RemoveAll(dir)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay, true, true, *log, metrics, nil)
err := test.CopyFiles("../../test/data/zot-test", path.Join(dir, "zot-test"))
if err != nil {
t.Error(err)
}
digest := godigest.FromBytes([]byte(data))
buf := bytes.NewBuffer([]byte(data))
buflen := buf.Len()
err = ioutil.WriteFile(path.Join(imgStore.RootDir(), //nolint: gosec
"zot-test", "blobs", digest.Algorithm().String(), digest.Encoded()),
buf.Bytes(), 0o644)
if err != nil {
t.Error(err)
}
_, _, err = imgStore.FullBlobUpload("zot-test", buf, digest.String())
if err != nil {
t.Error(err)
}
artifactManifest := artifactspec.Manifest{}
artifactManifest.ArtifactType = data
artifactManifest.Subject = artifactspec.Descriptor{
MediaType: ispec.MediaTypeImageManifest,
Digest: digest,
Size: int64(buflen),
}
artifactManifest.Blobs = []artifactspec.Descriptor{}
manBuf, err := json.Marshal(artifactManifest)
if err != nil {
t.Error(err)
}
manDigest := godigest.FromBytes(manBuf)
_, err = imgStore.PutImageManifest("zot-test", manDigest.Encoded(), artifactspec.MediaTypeArtifactManifest, manBuf)
if err != nil {
t.Error(err)
}
_, err = imgStore.GetReferrers("zot-test", digest.String(), data)
if err != nil {
if errors.Is(err, zerr.ErrManifestNotFound) || isKnownErr(err) {
return
}
t.Error(err)
}
})
}
func FuzzRunGCRepo(f *testing.F) {
f.Fuzz(func(t *testing.T, data string) {
log := &log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, *log)
dir := t.TempDir()
defer os.RemoveAll(dir)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay, true, true, *log, metrics, nil)
imgStore.RunGCRepo(data)
})
}
func TestDedupeLinks(t *testing.T) {
dir := t.TempDir()
log := log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, log)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay,
true, true, log, metrics, nil)
Convey("Dedupe", t, func(c C) {
// manifest1
upload, err := imgStore.NewBlobUpload("dedupe1")
So(err, ShouldBeNil)
So(upload, ShouldNotBeEmpty)
content := []byte("test-data3")
buf := bytes.NewBuffer(content)
buflen := buf.Len()
digest := godigest.FromBytes(content)
blob, err := imgStore.PutBlobChunkStreamed("dedupe1", upload, buf)
So(err, ShouldBeNil)
So(blob, ShouldEqual, buflen)
blobDigest1 := strings.Split(digest.String(), ":")[1]
So(blobDigest1, ShouldNotBeEmpty)
err = imgStore.FinishBlobUpload("dedupe1", upload, buf, digest.String())
So(err, ShouldBeNil)
So(blob, ShouldEqual, buflen)
_, _, err = imgStore.CheckBlob("dedupe1", digest.String())
So(err, ShouldBeNil)
_, _, err = imgStore.GetBlob("dedupe1", digest.String(), "application/vnd.oci.image.layer.v1.tar+gzip")
So(err, ShouldBeNil)
cblob, cdigest := test.GetRandomImageConfig()
_, clen, err := imgStore.FullBlobUpload("dedupe1", bytes.NewReader(cblob), cdigest.String())
So(err, ShouldBeNil)
So(clen, ShouldEqual, len(cblob))
hasBlob, _, err := imgStore.CheckBlob("dedupe1", cdigest.String())
So(err, ShouldBeNil)
So(hasBlob, ShouldEqual, true)
manifest := ispec.Manifest{
Config: ispec.Descriptor{
MediaType: "application/vnd.oci.image.config.v1+json",
Digest: cdigest,
Size: int64(len(cblob)),
},
Layers: []ispec.Descriptor{
{
MediaType: "application/vnd.oci.image.layer.v1.tar",
Digest: digest,
Size: int64(buflen),
},
},
}
manifest.SchemaVersion = 2
manifestBuf, err := json.Marshal(manifest)
So(err, ShouldBeNil)
digest = godigest.FromBytes(manifestBuf)
_, err = imgStore.PutImageManifest("dedupe1", digest.String(),
ispec.MediaTypeImageManifest, manifestBuf)
So(err, ShouldBeNil)
_, _, _, err = imgStore.GetImageManifest("dedupe1", digest.String())
So(err, ShouldBeNil)
// manifest2
upload, err = imgStore.NewBlobUpload("dedupe2")
So(err, ShouldBeNil)
So(upload, ShouldNotBeEmpty)
content = []byte("test-data3")
buf = bytes.NewBuffer(content)
buflen = buf.Len()
digest = godigest.FromBytes(content)
blob, err = imgStore.PutBlobChunkStreamed("dedupe2", upload, buf)
So(err, ShouldBeNil)
So(blob, ShouldEqual, buflen)
blobDigest2 := strings.Split(digest.String(), ":")[1]
So(blobDigest2, ShouldNotBeEmpty)
err = imgStore.FinishBlobUpload("dedupe2", upload, buf, digest.String())
So(err, ShouldBeNil)
So(blob, ShouldEqual, buflen)
_, _, err = imgStore.CheckBlob("dedupe2", digest.String())
So(err, ShouldBeNil)
_, _, err = imgStore.GetBlob("dedupe2", digest.String(), "application/vnd.oci.image.layer.v1.tar+gzip")
So(err, ShouldBeNil)
cblob, cdigest = test.GetRandomImageConfig()
_, clen, err = imgStore.FullBlobUpload("dedupe2", bytes.NewReader(cblob), cdigest.String())
So(err, ShouldBeNil)
So(clen, ShouldEqual, len(cblob))
hasBlob, _, err = imgStore.CheckBlob("dedupe2", cdigest.String())
So(err, ShouldBeNil)
So(hasBlob, ShouldEqual, true)
manifest = ispec.Manifest{
Config: ispec.Descriptor{
MediaType: "application/vnd.oci.image.config.v1+json",
Digest: cdigest,
Size: int64(len(cblob)),
},
Layers: []ispec.Descriptor{
{
MediaType: "application/vnd.oci.image.layer.v1.tar",
Digest: digest,
Size: int64(buflen),
},
},
}
manifest.SchemaVersion = 2
manifestBuf, err = json.Marshal(manifest)
So(err, ShouldBeNil)
digest = godigest.FromBytes(manifestBuf)
_, err = imgStore.PutImageManifest("dedupe2", "1.0", ispec.MediaTypeImageManifest, manifestBuf)
So(err, ShouldBeNil)
_, _, _, err = imgStore.GetImageManifest("dedupe2", digest.String())
So(err, ShouldBeNil)
// verify that dedupe with hard links happened
fi1, err := os.Stat(path.Join(dir, "dedupe2", "blobs", "sha256", blobDigest1))
So(err, ShouldBeNil)
fi2, err := os.Stat(path.Join(dir, "dedupe2", "blobs", "sha256", blobDigest2))
So(err, ShouldBeNil)
So(os.SameFile(fi1, fi2), ShouldBeTrue)
})
}
func TestDedupe(t *testing.T) {
Convey("Dedupe", t, func(c C) {
Convey("Nil ImageStore", func() {
var is storage.ImageStore
So(func() { _ = is.DedupeBlob("", "", "") }, ShouldPanic)
})
Convey("Valid ImageStore", func() {
dir := t.TempDir()
log := log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, log)
il := storage.NewImageStore(dir, true, storage.DefaultGCDelay, true, true, log, metrics, nil)
So(il.DedupeBlob("", "", ""), ShouldNotBeNil)
})
})
}
// nolint: gocyclo
func TestNegativeCases(t *testing.T) {
Convey("Invalid root dir", t, func(c C) {
dir := t.TempDir()
log := log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, log)
So(storage.NewImageStore(dir, true, storage.DefaultGCDelay, true,
true, log, metrics, nil), ShouldNotBeNil)
if os.Geteuid() != 0 {
So(storage.NewImageStore("/deadBEEF", true, storage.DefaultGCDelay,
true, true, log, metrics, nil), ShouldBeNil)
}
})
Convey("Invalid init repo", t, func(c C) {
dir := t.TempDir()
log := log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, log)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay,
true, true, log, metrics, nil)
err := os.Chmod(dir, 0o000) // remove all perms
if err != nil {
panic(err)
}
if os.Geteuid() != 0 {
err = imgStore.InitRepo("test")
So(err, ShouldNotBeNil)
}
err = os.Chmod(dir, 0o755)
if err != nil {
panic(err)
}
// Init repo should fail if repo is a file.
err = ioutil.WriteFile(path.Join(dir, "file-test"), []byte("this is test file"), 0o755) // nolint:gosec
So(err, ShouldBeNil)
err = imgStore.InitRepo("file-test")
So(err, ShouldNotBeNil)
err = os.Mkdir(path.Join(dir, "test-dir"), 0o755)
So(err, ShouldBeNil)
err = imgStore.InitRepo("test-dir")
So(err, ShouldBeNil)
// Init repo should fail if repo is invalid UTF-8
err = imgStore.InitRepo("hi \255")
So(err, ShouldNotBeNil)
})
Convey("Invalid validate repo", t, func(c C) {
dir := t.TempDir()
log := log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, log)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay, true,
true, log, metrics, nil)
So(imgStore, ShouldNotBeNil)
So(imgStore.InitRepo("test"), ShouldBeNil)
err := os.MkdirAll(path.Join(dir, "invalid-test"), 0o755)
So(err, ShouldBeNil)
err = os.Chmod(path.Join(dir, "invalid-test"), 0o000) // remove all perms
if err != nil {
panic(err)
}
_, err = imgStore.ValidateRepo("invalid-test")
So(err, ShouldNotBeNil)
So(err, ShouldEqual, zerr.ErrRepoNotFound)
err = os.Chmod(path.Join(dir, "invalid-test"), 0o755) // remove all perms
if err != nil {
panic(err)
}
err = ioutil.WriteFile(path.Join(dir, "invalid-test", "blobs"), []byte{}, 0o755) // nolint: gosec
if err != nil {
panic(err)
}
err = ioutil.WriteFile(path.Join(dir, "invalid-test", "index.json"), []byte{}, 0o755) // nolint: gosec
if err != nil {
panic(err)
}
err = ioutil.WriteFile(path.Join(dir, "invalid-test", ispec.ImageLayoutFile), []byte{}, 0o755) // nolint: gosec
if err != nil {
panic(err)
}
isValid, err := imgStore.ValidateRepo("invalid-test")
So(err, ShouldBeNil)
So(isValid, ShouldEqual, false)
err = os.Remove(path.Join(dir, "invalid-test", "blobs"))
if err != nil {
panic(err)
}
err = os.Mkdir(path.Join(dir, "invalid-test", "blobs"), 0o755)
if err != nil {
panic(err)
}
isValid, err = imgStore.ValidateRepo("invalid-test")
So(err, ShouldNotBeNil)
So(isValid, ShouldEqual, false)
err = ioutil.WriteFile(path.Join(dir, "invalid-test", ispec.ImageLayoutFile), []byte("{}"), 0o755) // nolint: gosec
if err != nil {
panic(err)
}
isValid, err = imgStore.ValidateRepo("invalid-test")
So(err, ShouldNotBeNil)
So(err, ShouldEqual, zerr.ErrRepoBadVersion)
So(isValid, ShouldEqual, false)
files, err := ioutil.ReadDir(path.Join(dir, "test"))
if err != nil {
panic(err)
}
for _, f := range files {
os.Remove(path.Join(dir, "test", f.Name()))
}
_, err = imgStore.ValidateRepo("test")
So(err, ShouldNotBeNil)
err = os.RemoveAll(path.Join(dir, "test"))
if err != nil {
panic(err)
}
_, err = imgStore.ValidateRepo("test")
So(err, ShouldNotBeNil)
err = os.Chmod(dir, 0o000) // remove all perms
if err != nil {
panic(err)
}
if os.Geteuid() != 0 {
So(func() { _, _ = imgStore.ValidateRepo("test") }, ShouldPanic)
}
err = os.Chmod(dir, 0o755) // remove all perms
if err != nil {
panic(err)
}
err = os.RemoveAll(dir)
if err != nil {
panic(err)
}
_, err = imgStore.GetRepositories()
So(err, ShouldNotBeNil)
})
Convey("Invalid get image tags", t, func(c C) {
var ilfs storage.ImageStoreLocal
_, err := ilfs.GetImageTags("test")
So(err, ShouldNotBeNil)
dir := t.TempDir()
log := log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, log)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay,
true, true, log, metrics, nil)
So(imgStore, ShouldNotBeNil)
So(imgStore.InitRepo("test"), ShouldBeNil)
So(os.Remove(path.Join(dir, "test", "index.json")), ShouldBeNil)
_, err = imgStore.GetImageTags("test")
So(err, ShouldNotBeNil)
So(os.RemoveAll(path.Join(dir, "test")), ShouldBeNil)
So(imgStore.InitRepo("test"), ShouldBeNil)
So(ioutil.WriteFile(path.Join(dir, "test", "index.json"), []byte{}, 0o600), ShouldBeNil)
_, err = imgStore.GetImageTags("test")
So(err, ShouldNotBeNil)
})
Convey("Invalid get image manifest", t, func(c C) {
var ilfs storage.ImageStoreLocal
_, _, _, err := ilfs.GetImageManifest("test", "")
So(err, ShouldNotBeNil)
dir := t.TempDir()
log := log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, log)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay, true,
true, log, metrics, nil)
So(imgStore, ShouldNotBeNil)
So(imgStore.InitRepo("test"), ShouldBeNil)
err = os.Chmod(path.Join(dir, "test", "index.json"), 0o000)
if err != nil {
panic(err)
}
_, _, _, err = imgStore.GetImageManifest("test", "")
So(err, ShouldNotBeNil)
err = os.Remove(path.Join(dir, "test", "index.json"))
if err != nil {
panic(err)
}
_, _, _, err = imgStore.GetImageManifest("test", "")
So(err, ShouldNotBeNil)
err = os.RemoveAll(path.Join(dir, "test"))
if err != nil {
panic(err)
}
So(imgStore.InitRepo("test"), ShouldBeNil)
err = ioutil.WriteFile(path.Join(dir, "test", "index.json"), []byte{}, 0o600)
if err != nil {
panic(err)
}
_, _, _, err = imgStore.GetImageManifest("test", "")
So(err, ShouldNotBeNil)
})
Convey("Invalid new blob upload", t, func(c C) {
dir := t.TempDir()
log := log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, log)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay,
true, true, log, metrics, nil)
So(imgStore, ShouldNotBeNil)
So(imgStore.InitRepo("test"), ShouldBeNil)
err := os.Chmod(path.Join(dir, "test", ".uploads"), 0o000)
if err != nil {
panic(err)
}
_, err = imgStore.NewBlobUpload("test")
So(err, ShouldNotBeNil)
err = os.Chmod(path.Join(dir, "test"), 0o000)
if err != nil {
panic(err)
}
_, err = imgStore.NewBlobUpload("test")
So(err, ShouldNotBeNil)
err = os.Chmod(path.Join(dir, "test"), 0o755)
if err != nil {
panic(err)
}
So(imgStore.InitRepo("test"), ShouldBeNil)
_, err = imgStore.NewBlobUpload("test")
So(err, ShouldNotBeNil)
err = os.Chmod(path.Join(dir, "test", ".uploads"), 0o755)
if err != nil {
panic(err)
}
upload, err := imgStore.NewBlobUpload("test")
So(err, ShouldBeNil)
err = os.Chmod(path.Join(dir, "test", ".uploads"), 0o000)
if err != nil {
panic(err)
}
t.Cleanup(func() {
err = os.Chmod(path.Join(dir, "test", ".uploads"), 0o700)
if err != nil {
panic(err)
}
})
content := []byte("test-data3")
buf := bytes.NewBuffer(content)
l := buf.Len()
_, err = imgStore.PutBlobChunkStreamed("test", upload, buf)
So(err, ShouldNotBeNil)
_, err = imgStore.PutBlobChunk("test", upload, 0, int64(l), buf)
So(err, ShouldNotBeNil)
})
Convey("DirExists call with a filename as argument", t, func(c C) {
dir := t.TempDir()
filePath := path.Join(dir, "file.txt")
err := ioutil.WriteFile(filePath, []byte("some dummy file content"), 0o644) //nolint: gosec
if err != nil {
panic(err)
}
ok := storage.DirExists(filePath)
So(ok, ShouldBeFalse)
})
Convey("DirExists call with invalid UTF-8 as argument", t, func(c C) {
dir := t.TempDir()
filePath := path.Join(dir, "hi \255")
ok := storage.DirExists(filePath)
So(ok, ShouldBeFalse)
})
Convey("DirExists call with name too long as argument", t, func(c C) {
var builder strings.Builder
for i := 0; i < 1025; i++ {
_, err := builder.WriteString("0")
if err != nil {
t.Fatal(err)
}
}
path := builder.String()
ok := storage.DirExists(path)
So(ok, ShouldBeFalse)
})
}
func TestHardLink(t *testing.T) {
Convey("Test that ValidateHardLink creates rootDir if it does not exist", t, func() {
var randomDir string
for {
nBig, err := rand.Int(rand.Reader, big.NewInt(100))
if err != nil {
panic(err)
}
randomDir = "/tmp/" + randSeq(int(nBig.Int64()))
if _, err := os.Stat(randomDir); os.IsNotExist(err) {
break
}
}
defer os.RemoveAll(randomDir)
err := storage.ValidateHardLink(randomDir)
So(err, ShouldBeNil)
})
Convey("Test that ValidateHardLink returns error if rootDir is a file", t, func() {
dir := t.TempDir()
filePath := path.Join(dir, "file.txt")
err := ioutil.WriteFile(filePath, []byte("some dummy file content"), 0o644) //nolint: gosec
if err != nil {
panic(err)
}
err = storage.ValidateHardLink(filePath)
So(err, ShouldNotBeNil)
})
Convey("Test if filesystem supports hardlink", t, func() {
dir := t.TempDir()
err := storage.ValidateHardLink(dir)
So(err, ShouldBeNil)
err = ioutil.WriteFile(path.Join(dir, "hardtest.txt"), []byte("testing hard link code"), 0o644) //nolint: gosec
if err != nil {
panic(err)
}
err = os.Chmod(dir, 0o400)
if err != nil {
panic(err)
}
// Allow hardtest.txt to be cleaned up by t.TempDir()
t.Cleanup(func() {
err = os.Chmod(dir, 0o700)
if err != nil {
t.Fatal(err)
}
})
err = os.Link(path.Join(dir, "hardtest.txt"), path.Join(dir, "duphardtest.txt"))
So(err, ShouldNotBeNil)
err = os.Chmod(dir, 0o644)
if err != nil {
panic(err)
}
})
}
func TestInjectWriteFile(t *testing.T) {
Convey("writeFile with commit", t, func() {
dir := t.TempDir()
log := log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, log)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay,
true, true, log, metrics, nil)
Convey("Failure path1", func() {
injected := test.InjectFailure(0)
err := imgStore.InitRepo("repo1")
if injected {
So(err, ShouldNotBeNil)
} else {
So(err, ShouldBeNil)
}
})
Convey("Failure path2", func() {
injected := test.InjectFailure(1)
err := imgStore.InitRepo("repo2")
if injected {
So(err, ShouldNotBeNil)
} else {
So(err, ShouldBeNil)
}
})
})
Convey("writeFile without commit", t, func() {
dir := t.TempDir()
log := log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, log)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay,
true, false, log, metrics, nil)
Convey("Failure path not reached", func() {
err := imgStore.InitRepo("repo1")
So(err, ShouldBeNil)
})
})
}
func TestGarbageCollect(t *testing.T) {
Convey("Repo layout", t, func(c C) {
dir := t.TempDir()
log := log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, log)
Convey("Garbage collect with default/long delay", func() {
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay,
true, true, log, metrics, nil)
repoName := "gc-long"
upload, err := imgStore.NewBlobUpload(repoName)
So(err, ShouldBeNil)
So(upload, ShouldNotBeEmpty)
content := []byte("test-data1")
buf := bytes.NewBuffer(content)
buflen := buf.Len()
bdigest := godigest.FromBytes(content)
blob, err := imgStore.PutBlobChunk(repoName, upload, 0, int64(buflen), buf)
So(err, ShouldBeNil)
So(blob, ShouldEqual, buflen)
err = imgStore.FinishBlobUpload(repoName, upload, buf, bdigest.String())
So(err, ShouldBeNil)
annotationsMap := make(map[string]string)
annotationsMap[ispec.AnnotationRefName] = tag
cblob, cdigest := test.GetRandomImageConfig()
_, clen, err := imgStore.FullBlobUpload(repoName, bytes.NewReader(cblob), cdigest.String())
So(err, ShouldBeNil)
So(clen, ShouldEqual, len(cblob))
hasBlob, _, err := imgStore.CheckBlob(repoName, cdigest.String())
So(err, ShouldBeNil)
So(hasBlob, ShouldEqual, true)
manifest := ispec.Manifest{
Config: ispec.Descriptor{
MediaType: "application/vnd.oci.image.config.v1+json",
Digest: cdigest,
Size: int64(len(cblob)),
},
Layers: []ispec.Descriptor{
{
MediaType: "application/vnd.oci.image.layer.v1.tar",
Digest: bdigest,
Size: int64(buflen),
},
},
Annotations: annotationsMap,
}
manifest.SchemaVersion = 2
manifestBuf, err := json.Marshal(manifest)
So(err, ShouldBeNil)
digest := godigest.FromBytes(manifestBuf)
_, err = imgStore.PutImageManifest(repoName, tag, ispec.MediaTypeImageManifest, manifestBuf)
So(err, ShouldBeNil)
hasBlob, _, err = imgStore.CheckBlob(repoName, bdigest.String())
So(err, ShouldBeNil)
So(hasBlob, ShouldEqual, true)
err = imgStore.DeleteImageManifest(repoName, digest.String())
So(err, ShouldBeNil)
hasBlob, _, err = imgStore.CheckBlob(repoName, bdigest.String())
So(err, ShouldBeNil)
So(hasBlob, ShouldEqual, true)
})
Convey("Garbage collect with short delay", func() {
imgStore := storage.NewImageStore(dir, true, 1*time.Second, true, true, log, metrics, nil)
repoName := "gc-short"
// upload orphan blob
upload, err := imgStore.NewBlobUpload(repoName)
So(err, ShouldBeNil)
So(upload, ShouldNotBeEmpty)
content := []byte("test-data1")
buf := bytes.NewBuffer(content)
buflen := buf.Len()
odigest := godigest.FromBytes(content)
blob, err := imgStore.PutBlobChunk(repoName, upload, 0, int64(buflen), buf)
So(err, ShouldBeNil)
So(blob, ShouldEqual, buflen)
err = imgStore.FinishBlobUpload(repoName, upload, buf, odigest.String())
So(err, ShouldBeNil)
// sleep so orphan blob can be GC'ed
time.Sleep(5 * time.Second)
// upload blob
upload, err = imgStore.NewBlobUpload(repoName)
So(err, ShouldBeNil)
So(upload, ShouldNotBeEmpty)
content = []byte("test-data2")
buf = bytes.NewBuffer(content)
buflen = buf.Len()
bdigest := godigest.FromBytes(content)
blob, err = imgStore.PutBlobChunk(repoName, upload, 0, int64(buflen), buf)
So(err, ShouldBeNil)
So(blob, ShouldEqual, buflen)
err = imgStore.FinishBlobUpload(repoName, upload, buf, bdigest.String())
So(err, ShouldBeNil)
annotationsMap := make(map[string]string)
annotationsMap[ispec.AnnotationRefName] = tag
cblob, cdigest := test.GetRandomImageConfig()
_, clen, err := imgStore.FullBlobUpload(repoName, bytes.NewReader(cblob), cdigest.String())
So(err, ShouldBeNil)
So(clen, ShouldEqual, len(cblob))
hasBlob, _, err := imgStore.CheckBlob(repoName, cdigest.String())
So(err, ShouldBeNil)
So(hasBlob, ShouldEqual, true)
manifest := ispec.Manifest{
Config: ispec.Descriptor{
MediaType: "application/vnd.oci.image.config.v1+json",
Digest: cdigest,
Size: int64(len(cblob)),
},
Layers: []ispec.Descriptor{
{
MediaType: "application/vnd.oci.image.layer.v1.tar",
Digest: bdigest,
Size: int64(buflen),
},
},
Annotations: annotationsMap,
}
manifest.SchemaVersion = 2
manifestBuf, err := json.Marshal(manifest)
So(err, ShouldBeNil)
digest := godigest.FromBytes(manifestBuf)
_, err = imgStore.PutImageManifest(repoName, tag, ispec.MediaTypeImageManifest, manifestBuf)
So(err, ShouldBeNil)
hasBlob, _, err = imgStore.CheckBlob(repoName, odigest.String())
So(err, ShouldNotBeNil)
So(hasBlob, ShouldEqual, false)
hasBlob, _, err = imgStore.CheckBlob(repoName, bdigest.String())
So(err, ShouldBeNil)
So(hasBlob, ShouldEqual, true)
// sleep so orphan blob can be GC'ed
time.Sleep(5 * time.Second)
err = imgStore.DeleteImageManifest(repoName, digest.String())
So(err, ShouldBeNil)
hasBlob, _, err = imgStore.CheckBlob(repoName, bdigest.String())
So(err, ShouldNotBeNil)
So(hasBlob, ShouldEqual, false)
})
Convey("Garbage collect with dedupe", func() {
// garbage-collect is repo-local and dedupe is global and they can interact in strange ways
imgStore := storage.NewImageStore(dir, true, 5*time.Second, true, true, log, metrics, nil)
// first upload an image to the first repo and wait for GC timeout
repo1Name := "gc1"
// upload blob
upload, err := imgStore.NewBlobUpload(repo1Name)
So(err, ShouldBeNil)
So(upload, ShouldNotBeEmpty)
content := []byte("test-data")
buf := bytes.NewBuffer(content)
buflen := buf.Len()
bdigest := godigest.FromBytes(content)
tdigest := bdigest
blob, err := imgStore.PutBlobChunk(repo1Name, upload, 0, int64(buflen), buf)
So(err, ShouldBeNil)
So(blob, ShouldEqual, buflen)
err = imgStore.FinishBlobUpload(repo1Name, upload, buf, bdigest.String())
So(err, ShouldBeNil)
annotationsMap := make(map[string]string)
annotationsMap[ispec.AnnotationRefName] = tag
cblob, cdigest := test.GetRandomImageConfig()
_, clen, err := imgStore.FullBlobUpload(repo1Name, bytes.NewReader(cblob), cdigest.String())
So(err, ShouldBeNil)
So(clen, ShouldEqual, len(cblob))
hasBlob, _, err := imgStore.CheckBlob(repo1Name, cdigest.String())
So(err, ShouldBeNil)
So(hasBlob, ShouldEqual, true)
manifest := ispec.Manifest{
Config: ispec.Descriptor{
MediaType: "application/vnd.oci.image.config.v1+json",
Digest: cdigest,
Size: int64(len(cblob)),
},
Layers: []ispec.Descriptor{
{
MediaType: "application/vnd.oci.image.layer.v1.tar",
Digest: bdigest,
Size: int64(buflen),
},
},
Annotations: annotationsMap,
}
manifest.SchemaVersion = 2
manifestBuf, err := json.Marshal(manifest)
So(err, ShouldBeNil)
_, err = imgStore.PutImageManifest(repo1Name, tag, ispec.MediaTypeImageManifest, manifestBuf)
So(err, ShouldBeNil)
hasBlob, _, err = imgStore.CheckBlob(repo1Name, tdigest.String())
So(err, ShouldBeNil)
So(hasBlob, ShouldEqual, true)
// sleep so past GC timeout
time.Sleep(10 * time.Second)
hasBlob, _, err = imgStore.CheckBlob(repo1Name, tdigest.String())
So(err, ShouldBeNil)
So(hasBlob, ShouldEqual, true)
// upload another image into a second repo with the same blob contents so dedupe is triggered
repo2Name := "gc2"
upload, err = imgStore.NewBlobUpload(repo2Name)
So(err, ShouldBeNil)
So(upload, ShouldNotBeEmpty)
buf = bytes.NewBuffer(content)
buflen = buf.Len()
blob, err = imgStore.PutBlobChunk(repo2Name, upload, 0, int64(buflen), buf)
So(err, ShouldBeNil)
So(blob, ShouldEqual, buflen)
err = imgStore.FinishBlobUpload(repo2Name, upload, buf, bdigest.String())
So(err, ShouldBeNil)
annotationsMap = make(map[string]string)
annotationsMap[ispec.AnnotationRefName] = tag
cblob, cdigest = test.GetRandomImageConfig()
_, clen, err = imgStore.FullBlobUpload(repo2Name, bytes.NewReader(cblob), cdigest.String())
So(err, ShouldBeNil)
So(clen, ShouldEqual, len(cblob))
hasBlob, _, err = imgStore.CheckBlob(repo2Name, cdigest.String())
So(err, ShouldBeNil)
So(hasBlob, ShouldEqual, true)
manifest = ispec.Manifest{
Config: ispec.Descriptor{
MediaType: "application/vnd.oci.image.config.v1+json",
Digest: cdigest,
Size: int64(len(cblob)),
},
Layers: []ispec.Descriptor{
{
MediaType: "application/vnd.oci.image.layer.v1.tar",
Digest: bdigest,
Size: int64(buflen),
},
},
Annotations: annotationsMap,
}
manifest.SchemaVersion = 2
manifestBuf, err = json.Marshal(manifest)
So(err, ShouldBeNil)
_, err = imgStore.PutImageManifest(repo2Name, tag, ispec.MediaTypeImageManifest, manifestBuf)
So(err, ShouldBeNil)
hasBlob, _, err = imgStore.CheckBlob(repo2Name, bdigest.String())
So(err, ShouldBeNil)
So(hasBlob, ShouldEqual, true)
// immediately upload any other image to second repo which should invoke GC inline, but expect layers to persist
upload, err = imgStore.NewBlobUpload(repo2Name)
So(err, ShouldBeNil)
So(upload, ShouldNotBeEmpty)
content = []byte("test-data-more")
buf = bytes.NewBuffer(content)
buflen = buf.Len()
bdigest = godigest.FromBytes(content)
blob, err = imgStore.PutBlobChunk(repo2Name, upload, 0, int64(buflen), buf)
So(err, ShouldBeNil)
So(blob, ShouldEqual, buflen)
err = imgStore.FinishBlobUpload(repo2Name, upload, buf, bdigest.String())
So(err, ShouldBeNil)
annotationsMap = make(map[string]string)
annotationsMap[ispec.AnnotationRefName] = tag
cblob, cdigest = test.GetRandomImageConfig()
_, clen, err = imgStore.FullBlobUpload(repo2Name, bytes.NewReader(cblob), cdigest.String())
So(err, ShouldBeNil)
So(clen, ShouldEqual, len(cblob))
hasBlob, _, err = imgStore.CheckBlob(repo2Name, cdigest.String())
So(err, ShouldBeNil)
So(hasBlob, ShouldEqual, true)
manifest = ispec.Manifest{
Config: ispec.Descriptor{
MediaType: "application/vnd.oci.image.config.v1+json",
Digest: cdigest,
Size: int64(len(cblob)),
},
Layers: []ispec.Descriptor{
{
MediaType: "application/vnd.oci.image.layer.v1.tar",
Digest: bdigest,
Size: int64(buflen),
},
},
Annotations: annotationsMap,
}
manifest.SchemaVersion = 2
manifestBuf, err = json.Marshal(manifest)
So(err, ShouldBeNil)
digest := godigest.FromBytes(manifestBuf)
_, err = imgStore.PutImageManifest(repo2Name, tag, ispec.MediaTypeImageManifest, manifestBuf)
So(err, ShouldBeNil)
// original blob should exist
hasBlob, _, err = imgStore.CheckBlob(repo2Name, tdigest.String())
So(err, ShouldBeNil)
So(hasBlob, ShouldEqual, true)
_, _, _, err = imgStore.GetImageManifest(repo2Name, digest.String())
So(err, ShouldBeNil)
})
})
}
func TestGarbageCollectForImageStore(t *testing.T) {
Convey("Garbage collect for a specific repo from an ImageStore", t, func(c C) {
dir := t.TempDir()
Convey("Garbage collect error for repo with config removed", func() {
logFile, _ := ioutil.TempFile("", "zot-log*.txt")
defer os.Remove(logFile.Name()) // clean up
log := log.NewLogger("debug", logFile.Name())
metrics := monitoring.NewMetricsServer(false, log)
imgStore := storage.NewImageStore(dir, true, 1*time.Second, true, true, log, metrics, nil)
repoName := "gc-all-repos-short"
err := test.CopyFiles("../../test/data/zot-test", path.Join(dir, repoName))
if err != nil {
panic(err)
}
var manifestDigest godigest.Digest
manifestDigest, _, _ = test.GetOciLayoutDigests("../../test/data/zot-test")
err = os.Remove(path.Join(dir, repoName, "blobs/sha256", manifestDigest.Encoded()))
if err != nil {
panic(err)
}
imgStore.RunGCRepo(repoName)
time.Sleep(500 * time.Millisecond)
data, err := os.ReadFile(logFile.Name())
So(err, ShouldBeNil)
So(string(data), ShouldContainSubstring,
fmt.Sprintf("error while running GC for %s", path.Join(imgStore.RootDir(), repoName)))
})
Convey("Garbage collect error - not enough permissions to access index.json", func() {
logFile, _ := ioutil.TempFile("", "zot-log*.txt")
defer os.Remove(logFile.Name()) // clean up
log := log.NewLogger("debug", logFile.Name())
metrics := monitoring.NewMetricsServer(false, log)
imgStore := storage.NewImageStore(dir, true, 1*time.Second, true, true, log, metrics, nil)
repoName := "gc-all-repos-short"
err := test.CopyFiles("../../test/data/zot-test", path.Join(dir, repoName))
if err != nil {
panic(err)
}
So(os.Chmod(path.Join(dir, repoName, "index.json"), 0o000), ShouldBeNil)
imgStore.RunGCRepo(repoName)
time.Sleep(500 * time.Millisecond)
data, err := os.ReadFile(logFile.Name())
So(err, ShouldBeNil)
So(string(data), ShouldContainSubstring,
fmt.Sprintf("error while running GC for %s", path.Join(imgStore.RootDir(), repoName)))
So(os.Chmod(path.Join(dir, repoName, "index.json"), 0o755), ShouldBeNil)
})
})
}
func randSeq(n int) string {
letters := []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")
buf := make([]rune, n)
for index := range buf {
nBig, err := rand.Int(rand.Reader, big.NewInt(int64(len(letters))))
if err != nil {
panic(err)
}
buf[index] = letters[int(nBig.Int64())]
}
return string(buf)
}
func TestInitRepo(t *testing.T) {
Convey("Get error when creating BlobUploadDir subdir on initRepo", t, func() {
dir := t.TempDir()
log := log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, log)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay,
true, true, log, metrics, nil)
err := os.Mkdir(path.Join(dir, "test-dir"), 0o000)
So(err, ShouldBeNil)
err = imgStore.InitRepo("test-dir")
So(err, ShouldNotBeNil)
})
}
func TestValidateRepo(t *testing.T) {
Convey("Get error when unable to read directory", t, func() {
dir := t.TempDir()
log := log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, log)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay,
true, true, log, metrics, nil)
err := os.Mkdir(path.Join(dir, "test-dir"), 0o000)
So(err, ShouldBeNil)
_, err = imgStore.ValidateRepo("test-dir")
So(err, ShouldNotBeNil)
})
}
func TestGetRepositoriesError(t *testing.T) {
Convey("Get error when returning relative path", t, func() {
dir := t.TempDir()
log := log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, log)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay,
true, true, log, metrics, nil,
)
// create valid directory with permissions
err := os.Mkdir(path.Join(dir, "test-dir"), 0o755)
So(err, ShouldBeNil)
err = ioutil.WriteFile(path.Join(dir, "test-dir/test-file"), []byte("this is test file"), 0o000)
So(err, ShouldBeNil)
_, err = imgStore.GetRepositories()
So(err, ShouldBeNil)
})
}
func TestPutBlobChunkStreamed(t *testing.T) {
Convey("Get error on opening file", t, func() {
dir := t.TempDir()
log := log.Logger{Logger: zerolog.New(os.Stdout)}
metrics := monitoring.NewMetricsServer(false, log)
imgStore := storage.NewImageStore(dir, true, storage.DefaultGCDelay,
true, true, log, metrics, nil)
uuid, err := imgStore.NewBlobUpload("test")
So(err, ShouldBeNil)
var reader io.Reader
blobPath := imgStore.BlobUploadPath("test", uuid)
err = os.Chmod(blobPath, 0o000)
So(err, ShouldBeNil)
_, err = imgStore.PutBlobChunkStreamed("test", uuid, reader)
So(err, ShouldNotBeNil)
})
}
func NewRandomImgManifest(data []byte, cdigest, ldigest godigest.Digest, cblob, lblob []byte) (*ispec.Manifest, error) {
annotationsMap := make(map[string]string)
key := string(data)
val := string(data)
annotationsMap[key] = val
schemaVersion := 2
manifest := ispec.Manifest{
MediaType: "application/vnd.oci.image.manifest.v1+json",
Config: ispec.Descriptor{
MediaType: "application/vnd.oci.image.config.v1+json",
Digest: cdigest,
Size: int64(len(cblob)),
},
Layers: []ispec.Descriptor{
{
MediaType: "application/vnd.oci.image.layer.v1.tar",
Digest: ldigest,
Size: int64(len(lblob)),
},
},
Annotations: annotationsMap,
Versioned: imeta.Versioned{
SchemaVersion: schemaVersion,
},
}
return &manifest, nil
}
func newRandomBlobForFuzz(data []byte) (godigest.Digest, []byte, error) {
return godigest.FromBytes(data), data, nil
}
func isKnownErr(err error) bool {
if errors.Is(err, zerr.ErrInvalidRepositoryName) || errors.Is(err, zerr.ErrManifestNotFound) ||
errors.Is(err, zerr.ErrRepoNotFound) ||
errors.Is(err, zerr.ErrBadManifest) {
return true
}
if err, ok := err.(*fs.PathError); ok && errors.Is(err.Err, syscall.EACCES) || //nolint: errorlint
errors.Is(err.Err, syscall.ENAMETOOLONG) ||
errors.Is(err.Err, syscall.EINVAL) ||
errors.Is(err.Err, syscall.ENOENT) {
return true
}
return false
}