Merge pull request #143 from KirillovDenis/bugfix/125-check_bucket_unique
[#125] Fixed bucket creation
This commit is contained in:
Alex Vanin
GitHub
commit
7b1058a9bd
4 changed files with 125 additions and 15 deletions
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@ -3,14 +3,13 @@ package handler
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import (
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"bytes"
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"context"
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"errors"
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"net/http"
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"github.com/gorilla/mux"
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"github.com/nspcc-dev/neofs-s3-gw/api"
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"github.com/nspcc-dev/neofs-s3-gw/api/layer"
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"go.uber.org/zap"
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"google.golang.org/grpc/codes"
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"google.golang.org/grpc/status"
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)
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const sizeToDetectType = 512
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@ -125,13 +124,8 @@ func (h *handler) HeadBucketHandler(w http.ResponseWriter, r *http.Request) {
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zap.Error(err))
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code := http.StatusBadRequest
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if st, ok := status.FromError(err); ok && st != nil {
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switch st.Code() { //nolint:exhaustive // we have default value set above
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case codes.NotFound:
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code = http.StatusNotFound
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case codes.PermissionDenied:
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code = http.StatusForbidden
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}
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if errors.Is(err, layer.ErrBucketNotFound) {
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code = http.StatusNotFound
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}
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api.WriteResponse(w, code, nil, api.MimeNone)
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@ -20,6 +20,8 @@ const (
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basicACLReadOnly = "public-read"
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basicACLPublic = "public-read-write"
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defaultPolicy = "REP 3"
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publicBasicRule = 0x0FFFFFFF
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)
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func (h *handler) PutObjectHandler(w http.ResponseWriter, r *http.Request) {
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@ -99,7 +101,7 @@ func (h *handler) CreateBucketHandler(w http.ResponseWriter, r *http.Request) {
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if val, ok := r.Header["X-Amz-Acl"]; ok {
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p.ACL, err = parseBasicACL(val[0])
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} else {
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p.ACL = acl.PrivateBasicRule
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p.ACL = publicBasicRule
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}
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if err != nil {
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@ -112,6 +114,7 @@ func (h *handler) CreateBucketHandler(w http.ResponseWriter, r *http.Request) {
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Description: err.Error(),
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HTTPStatusCode: http.StatusBadRequest,
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}, r.URL)
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return
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}
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p.Policy, err = policy.Parse(defaultPolicy)
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@ -125,6 +128,7 @@ func (h *handler) CreateBucketHandler(w http.ResponseWriter, r *http.Request) {
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Description: err.Error(),
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HTTPStatusCode: http.StatusBadRequest,
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}, r.URL)
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return
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}
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cid, err := h.obj.CreateBucket(r.Context(), &p)
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@ -138,6 +142,7 @@ func (h *handler) CreateBucketHandler(w http.ResponseWriter, r *http.Request) {
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Description: err.Error(),
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HTTPStatusCode: http.StatusInternalServerError,
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}, r.URL)
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return
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}
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h.log.Info("bucket is created",
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@ -1,11 +1,16 @@
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package layer
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import (
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"bytes"
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"context"
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"crypto/ecdsa"
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"fmt"
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"strconv"
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"strings"
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"time"
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"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
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"github.com/nspcc-dev/neofs-api-go/pkg/acl/eacl"
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"github.com/nspcc-dev/neofs-api-go/pkg/container"
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cid "github.com/nspcc-dev/neofs-api-go/pkg/container/id"
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"github.com/nspcc-dev/neofs-api-go/pkg/owner"
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@ -55,6 +60,9 @@ func (n *layer) containerInfo(ctx context.Context, cid *cid.ID) (*BucketInfo, er
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zap.String("request_id", rid),
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zap.Error(err))
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if strings.Contains(err.Error(), "container not found") {
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return nil, ErrBucketNotFound
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}
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return nil, err
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}
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@ -122,7 +130,14 @@ func (n *layer) createContainer(ctx context.Context, p *CreateBucketParams) (*ci
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container.WithAttribute(container.AttributeName, p.Name),
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container.WithAttribute(container.AttributeTimestamp, strconv.FormatInt(time.Now().Unix(), 10)))
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cnr.SetSessionToken(ctx.Value(api.GateData).(*accessbox.GateData).SessionToken)
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var gateData *accessbox.GateData
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if data, ok := ctx.Value(api.GateData).(*accessbox.GateData); ok && data != nil {
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gateData = data
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} else {
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return nil, fmt.Errorf("couldn't get gate data from context")
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}
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cnr.SetSessionToken(gateData.SessionToken)
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cnr.SetOwnerID(n.Owner(ctx))
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cid, err := n.pool.PutContainer(ctx, cnr)
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@ -130,14 +145,98 @@ func (n *layer) createContainer(ctx context.Context, p *CreateBucketParams) (*ci
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return nil, fmt.Errorf("failed to create a bucket: %w", err)
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}
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err = n.pool.WaitForContainerPresence(ctx, cid, pool.DefaultPollingParams())
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if err != nil {
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if err = n.pool.WaitForContainerPresence(ctx, cid, pool.DefaultPollingParams()); err != nil {
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return nil, err
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}
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if err := n.setContainerEACL(ctx, cid, gateData.GateKey); err != nil {
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return nil, err
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}
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return cid, nil
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}
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func (n *layer) setContainerEACL(ctx context.Context, cid *cid.ID, gateKey *keys.PublicKey) error {
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if gateKey == nil {
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return fmt.Errorf("gate key must not be nil")
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}
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table := formDefaultTable(cid, *(*ecdsa.PublicKey)(gateKey))
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if err := n.pool.SetEACL(ctx, table, n.SessionOpt(ctx)); err != nil {
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return err
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}
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if err := n.waitEACLPresence(ctx, cid, table, defaultWaitParams()); err != nil {
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return err
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}
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return nil
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}
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func formDefaultTable(cid *cid.ID, gateKey ecdsa.PublicKey) *eacl.Table {
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table := eacl.NewTable()
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table.SetCID(cid)
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for op := eacl.OperationGet; op <= eacl.OperationRangeHash; op++ {
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record := eacl.NewRecord()
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record.SetOperation(op)
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record.SetAction(eacl.ActionAllow)
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eacl.AddFormedTarget(record, eacl.RoleUser, gateKey)
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table.AddRecord(record)
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record2 := eacl.NewRecord()
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record2.SetOperation(op)
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record2.SetAction(eacl.ActionDeny)
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eacl.AddFormedTarget(record2, eacl.RoleOthers)
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table.AddRecord(record2)
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}
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return table
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}
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type waitParams struct {
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WaitTimeout time.Duration
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PollInterval time.Duration
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}
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func defaultWaitParams() *waitParams {
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return &waitParams{
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WaitTimeout: 60 * time.Second,
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PollInterval: 3 * time.Second,
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}
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}
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func (n *layer) waitEACLPresence(ctx context.Context, cid *cid.ID, table *eacl.Table, params *waitParams) error {
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exp, err := table.Marshal()
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if err != nil {
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return fmt.Errorf("couldn't marshal eacl: %w", err)
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}
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wctx, cancel := context.WithTimeout(ctx, params.WaitTimeout)
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defer cancel()
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ticker := time.NewTimer(params.PollInterval)
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defer ticker.Stop()
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wdone := wctx.Done()
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done := ctx.Done()
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for {
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select {
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case <-done:
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return ctx.Err()
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case <-wdone:
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return wctx.Err()
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case <-ticker.C:
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signedEacl, err := n.pool.GetEACL(ctx, cid)
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if err == nil {
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got, err := signedEacl.EACL().Marshal()
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if err == nil && bytes.Equal(exp, got) {
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return nil
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}
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}
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ticker.Reset(params.PollInterval)
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}
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}
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}
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func (n *layer) deleteContainer(ctx context.Context, cid *cid.ID) error {
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return n.pool.DeleteContainer(ctx, cid, n.SessionOpt(ctx))
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}
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@ -127,6 +127,10 @@ var (
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ErrObjectExists = errors.New("object exists")
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// ErrObjectNotExists is returned on attempts to work with non-existing object.
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ErrObjectNotExists = errors.New("object not exists")
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// ErrBucketAlreadyExists is returned on attempts to create already existing bucket.
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ErrBucketAlreadyExists = errors.New("bucket exists")
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// ErrBucketNotFound is returned on attempts to get not existing bucket.
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ErrBucketNotFound = errors.New("bucket not found")
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)
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const (
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@ -196,7 +200,7 @@ func (n *layer) GetBucketInfo(ctx context.Context, name string) (*BucketInfo, er
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}
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}
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return nil, status.Error(codes.NotFound, "bucket not found")
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return nil, ErrBucketNotFound
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}
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return n.containerInfo(ctx, containerID)
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@ -491,7 +495,15 @@ func (n *layer) DeleteObjects(ctx context.Context, bucket string, objects []stri
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}
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func (n *layer) CreateBucket(ctx context.Context, p *CreateBucketParams) (*cid.ID, error) {
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return n.createContainer(ctx, p)
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_, err := n.GetBucketInfo(ctx, p.Name)
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if err != nil {
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if errors.Is(err, ErrBucketNotFound) {
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return n.createContainer(ctx, p)
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}
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return nil, err
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}
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return nil, ErrBucketAlreadyExists
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}
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func (n *layer) DeleteBucket(ctx context.Context, p *DeleteBucketParams) error {
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