frostfs-s3-gw/api/layer/neofs_mock.go

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package layer
import (
"bytes"
"context"
"crypto/rand"
"crypto/sha256"
"fmt"
"io"
"strings"
"time"
objectv2 "github.com/nspcc-dev/neofs-api-go/v2/object"
"github.com/nspcc-dev/neofs-sdk-go/checksum"
"github.com/nspcc-dev/neofs-sdk-go/container"
cid "github.com/nspcc-dev/neofs-sdk-go/container/id"
"github.com/nspcc-dev/neofs-sdk-go/object"
oid "github.com/nspcc-dev/neofs-sdk-go/object/id"
"github.com/nspcc-dev/neofs-sdk-go/user"
)
type TestNeoFS struct {
NeoFS
objects map[string]*object.Object
containers map[string]*container.Container
currentEpoch uint64
}
const objectSystemAttributeName = "S3-System-name"
func NewTestNeoFS() *TestNeoFS {
return &TestNeoFS{
objects: make(map[string]*object.Object),
containers: make(map[string]*container.Container),
}
}
func (t *TestNeoFS) CurrentEpoch() uint64 {
return t.currentEpoch
}
func (t *TestNeoFS) Objects() []*object.Object {
res := make([]*object.Object, 0, len(t.objects))
for _, obj := range t.objects {
res = append(res, obj)
}
return res
}
func (t *TestNeoFS) AddObject(key string, obj *object.Object) {
t.objects[key] = obj
}
func (t *TestNeoFS) ContainerID(name string) (*cid.ID, error) {
for id, cnr := range t.containers {
if container.Name(*cnr) == name {
var cnrID cid.ID
return &cnrID, cnrID.DecodeString(id)
}
}
return nil, fmt.Errorf("not found")
}
func (t *TestNeoFS) CreateContainer(_ context.Context, prm PrmContainerCreate) (*cid.ID, error) {
var cnr container.Container
cnr.Init()
cnr.SetOwner(prm.Creator)
cnr.SetPlacementPolicy(prm.Policy)
cnr.SetBasicACL(prm.BasicACL)
container.SetCreationTime(&cnr, time.Now())
if prm.Name != "" {
var d container.Domain
d.SetName(prm.Name)
container.WriteDomain(&cnr, d)
container.SetName(&cnr, prm.Name)
}
for i := range prm.AdditionalAttributes {
cnr.SetAttribute(prm.AdditionalAttributes[i][0], prm.AdditionalAttributes[i][1])
}
b := make([]byte, 32)
if _, err := io.ReadFull(rand.Reader, b); err != nil {
return nil, err
}
var id cid.ID
id.SetSHA256(sha256.Sum256(b))
t.containers[id.EncodeToString()] = &cnr
return &id, nil
}
func (t *TestNeoFS) Container(_ context.Context, id cid.ID) (*container.Container, error) {
for k, v := range t.containers {
if k == id.EncodeToString() {
return v, nil
}
}
return nil, fmt.Errorf("container not found %s", id)
}
func (t *TestNeoFS) UserContainers(_ context.Context, _ user.ID) ([]cid.ID, error) {
var res []cid.ID
for k := range t.containers {
var idCnr cid.ID
if err := idCnr.DecodeString(k); err != nil {
return nil, err
}
res = append(res, idCnr)
}
return res, nil
}
func (t *TestNeoFS) SelectObjects(_ context.Context, prm PrmObjectSelect) ([]oid.ID, error) {
filters := object.NewSearchFilters()
filters.AddRootFilter()
if prm.FilePrefix != "" {
filters.AddFilter(object.AttributeFileName, prm.FilePrefix, object.MatchCommonPrefix)
}
if prm.ExactAttribute[0] != "" {
filters.AddFilter(prm.ExactAttribute[0], prm.ExactAttribute[1], object.MatchStringEqual)
}
cidStr := prm.Container.EncodeToString()
var res []oid.ID
if len(filters) == 1 {
for k, v := range t.objects {
if strings.Contains(k, cidStr) {
id, _ := v.ID()
res = append(res, id)
}
}
return res, nil
}
filter := filters[1]
if len(filters) != 2 || filter.Operation() != object.MatchStringEqual ||
(filter.Header() != object.AttributeFileName && filter.Header() != objectSystemAttributeName) {
return nil, fmt.Errorf("usupported filters")
}
for k, v := range t.objects {
if strings.Contains(k, cidStr) && isMatched(v.Attributes(), filter) {
id, _ := v.ID()
res = append(res, id)
}
}
return res, nil
}
func (t *TestNeoFS) ReadObject(_ context.Context, prm PrmObjectRead) (*ObjectPart, error) {
var addr oid.Address
addr.SetContainer(prm.Container)
addr.SetObject(prm.Object)
sAddr := addr.EncodeToString()
if obj, ok := t.objects[sAddr]; ok {
return &ObjectPart{
Head: obj,
Payload: io.NopCloser(bytes.NewReader(obj.Payload())),
}, nil
}
return nil, fmt.Errorf("object not found %s", addr)
}
func (t *TestNeoFS) CreateObject(_ context.Context, prm PrmObjectCreate) (*oid.ID, error) {
b := make([]byte, 32)
if _, err := io.ReadFull(rand.Reader, b); err != nil {
return nil, err
}
var id oid.ID
id.SetSHA256(sha256.Sum256(b))
attrs := make([]object.Attribute, 0)
if prm.Filename != "" {
a := object.NewAttribute()
a.SetKey(object.AttributeFileName)
a.SetValue(prm.Filename)
attrs = append(attrs, *a)
}
for i := range prm.Attributes {
a := object.NewAttribute()
a.SetKey(prm.Attributes[i][0])
a.SetValue(prm.Attributes[i][1])
attrs = append(attrs, *a)
}
obj := object.New()
obj.SetContainerID(prm.Container)
obj.SetID(id)
obj.SetPayloadSize(prm.PayloadSize)
obj.SetAttributes(attrs...)
obj.SetCreationEpoch(t.currentEpoch)
t.currentEpoch++
if len(prm.Locks) > 0 {
lock := new(object.Lock)
lock.WriteMembers(prm.Locks)
objectv2.WriteLock(obj.ToV2(), (objectv2.Lock)(*lock))
}
if prm.Payload != nil {
all, err := io.ReadAll(prm.Payload)
if err != nil {
return nil, err
}
obj.SetPayload(all)
obj.SetPayloadSize(uint64(len(all)))
var hash checksum.Checksum
checksum.Calculate(&hash, checksum.SHA256, all)
obj.SetPayloadChecksum(hash)
}
cnrID, _ := obj.ContainerID()
objID, _ := obj.ID()
addr := newAddress(cnrID, objID)
t.objects[addr.EncodeToString()] = obj
return &objID, nil
}
func (t *TestNeoFS) DeleteObject(_ context.Context, prm PrmObjectDelete) error {
var addr oid.Address
addr.SetContainer(prm.Container)
addr.SetObject(prm.Object)
delete(t.objects, addr.EncodeToString())
return nil
}
func (t *TestNeoFS) TimeToEpoch(_ context.Context, futureTime time.Time) (uint64, uint64, error) {
return t.currentEpoch, t.currentEpoch + uint64(futureTime.Second()), nil
}
func isMatched(attributes []object.Attribute, filter object.SearchFilter) bool {
for _, attr := range attributes {
if attr.Key() == filter.Header() && attr.Value() == filter.Value() {
return true
}
}
return false
}