[#47] handler, layer: Add CreateBucket

Renamed PutBucket to CreateBucket

Signed-off-by: Angira Kekteeva <kira@nspcc.ru>

api/handler/not-support.go

@@ -62,11 +62,3 @@ func (h *handler) PutBucketNotificationHandler(w http.ResponseWriter, r *http.Re
 		HTTPStatusCode: http.StatusNotImplemented,
 	}, r.URL)
 }
-
-func (h *handler) PutBucketHandler(w http.ResponseWriter, r *http.Request) {
-	api.WriteErrorResponse(r.Context(), w, api.Error{
-		Code:           api.GetAPIError(api.ErrBadRequest).Code,
-		Description:    notSupported + mux.CurrentRoute(r).GetName(),
-		HTTPStatusCode: http.StatusNotImplemented,
-	}, r.URL)
-}

api/handler/put.go

@@ -1,14 +1,27 @@
 package handler
 
 import (
+	"fmt"
 	"net/http"
+	"strconv"
+	"strings"
 
 	"github.com/gorilla/mux"
+	"github.com/nspcc-dev/neofs-api-go/pkg/acl"
+	"github.com/nspcc-dev/neofs-node/pkg/policy"
 	"github.com/nspcc-dev/neofs-s3-gw/api"
 	"github.com/nspcc-dev/neofs-s3-gw/api/layer"
 	"go.uber.org/zap"
 )
 
+// keywords of predefined basic ACL values.
+const (
+	basicACLPrivate  = "private"
+	basicACLReadOnly = "public-read"
+	basicACLPublic   = "public-read-write"
+	defaultPolicy    = "REP 3"
+)
+
 func (h *handler) PutObjectHandler(w http.ResponseWriter, r *http.Request) {
 	var (
 		err error
@@ -58,3 +71,81 @@ func (h *handler) PutObjectHandler(w http.ResponseWriter, r *http.Request) {
 
 	api.WriteSuccessResponseHeadersOnly(w)
 }
+
+func (h *handler) CreateBucketHandler(w http.ResponseWriter, r *http.Request) {
+	var (
+		err error
+		p   = layer.CreateBucketParams{}
+		rid = api.GetRequestID(r.Context())
+		req = mux.Vars(r)
+	)
+	p.Name = req["bucket"]
+	if val, ok := r.Header["X-Amz-Acl"]; ok {
+		p.ACL, err = parseBasicACL(val[0])
+	} else {
+		p.ACL = acl.PrivateBasicRule
+	}
+
+	if err != nil {
+		h.log.Error("could not parse basic ACL",
+			zap.String("request_id", rid),
+			zap.Error(err))
+
+		api.WriteErrorResponse(r.Context(), w, api.Error{
+			Code:           api.GetAPIError(api.ErrBadRequest).Code,
+			Description:    err.Error(),
+			HTTPStatusCode: http.StatusBadRequest,
+		}, r.URL)
+	}
+
+	p.Policy, err = policy.Parse(defaultPolicy)
+	if err != nil {
+		h.log.Error("could not parse policy",
+			zap.String("request_id", rid),
+			zap.Error(err))
+
+		api.WriteErrorResponse(r.Context(), w, api.Error{
+			Code:           api.GetAPIError(api.ErrBadRequest).Code,
+			Description:    err.Error(),
+			HTTPStatusCode: http.StatusBadRequest,
+		}, r.URL)
+	}
+
+	cid, err := h.obj.CreateBucket(r.Context(), &p)
+	if err != nil {
+		h.log.Error("could not create bucket",
+			zap.String("request_id", rid),
+			zap.Error(err))
+
+		api.WriteErrorResponse(r.Context(), w, api.Error{
+			Code:           api.GetAPIError(api.ErrInternalError).Code,
+			Description:    err.Error(),
+			HTTPStatusCode: http.StatusInternalServerError,
+		}, r.URL)
+	}
+
+	h.log.Info("bucket is created",
+		zap.String("container_id", cid.String()))
+
+	api.WriteSuccessResponseHeadersOnly(w)
+}
+
+func parseBasicACL(basicACL string) (uint32, error) {
+	switch basicACL {
+	case basicACLPublic:
+		return acl.PublicBasicRule, nil
+	case basicACLPrivate:
+		return acl.PrivateBasicRule, nil
+	case basicACLReadOnly:
+		return acl.ReadOnlyBasicRule, nil
+	default:
+		basicACL = strings.Trim(strings.ToLower(basicACL), "0x")
+
+		value, err := strconv.ParseUint(basicACL, 16, 32)
+		if err != nil {
+			return 0, fmt.Errorf("can't parse basic ACL: %s", basicACL)
+		}
+
+		return uint32(value), nil
+	}
+}

api/layer/container.go

@@ -2,6 +2,7 @@ package layer
 
 import (
 	"context"
+	"fmt"
 	"strconv"
 	"time"
 
@@ -9,6 +10,8 @@ import (
 	cid "github.com/nspcc-dev/neofs-api-go/pkg/container/id"
 	"github.com/nspcc-dev/neofs-api-go/pkg/owner"
 	"github.com/nspcc-dev/neofs-s3-gw/api"
+	"github.com/nspcc-dev/neofs-s3-gw/creds/accessbox"
+	"github.com/nspcc-dev/neofs-sdk-go/pkg/pool"
 	"go.uber.org/zap"
 )
 
@@ -125,3 +128,26 @@ func (n *layer) containerList(ctx context.Context) ([]*BucketInfo, error) {
 
 	return list, nil
 }
+
+func (n *layer) createContainer(ctx context.Context, p *CreateBucketParams) (*cid.ID, error) {
+	cnr := container.New(
+		container.WithPolicy(p.Policy),
+		container.WithCustomBasicACL(p.ACL),
+		container.WithAttribute(container.AttributeName, p.Name),
+		container.WithAttribute(container.AttributeTimestamp, strconv.FormatInt(time.Now().Unix(), 10)))
+
+	cnr.SetSessionToken(ctx.Value(api.GateData).(*accessbox.GateData).SessionToken)
+	cnr.SetOwnerID(n.Owner(ctx))
+
+	cid, err := n.pool.PutContainer(ctx, cnr)
+	if err != nil {
+		return nil, fmt.Errorf("failed to create a bucket: %w", err)
+	}
+
+	err = n.pool.WaitForContainerPresence(ctx, cid, pool.DefaultPollingParams())
+	if err != nil {
+		return nil, err
+	}
+
+	return cid, nil
+}

api/layer/layer.go

@@ -11,6 +11,7 @@ import (
 
 	"github.com/nspcc-dev/neofs-api-go/pkg/client"
 	cid "github.com/nspcc-dev/neofs-api-go/pkg/container/id"
+	"github.com/nspcc-dev/neofs-api-go/pkg/netmap"
 	"github.com/nspcc-dev/neofs-api-go/pkg/object"
 	"github.com/nspcc-dev/neofs-api-go/pkg/owner"
 	"github.com/nspcc-dev/neofs-s3-gw/api"
@@ -61,6 +62,12 @@ type (
 		DstObject string
 		Header    map[string]string
 	}
+	// CreateBucketParams stores bucket create request parameters.
+	CreateBucketParams struct {
+		Name   string
+		ACL    uint32
+		Policy *netmap.PlacementPolicy
+	}
 
 	// NeoFS provides basic NeoFS interface.
 	NeoFS interface {
@@ -73,6 +80,7 @@ type (
 
 		ListBuckets(ctx context.Context) ([]*BucketInfo, error)
 		GetBucketInfo(ctx context.Context, name string) (*BucketInfo, error)
+		CreateBucket(ctx context.Context, p *CreateBucketParams) (*cid.ID, error)
 
 		GetObject(ctx context.Context, p *GetObjectParams) error
 		GetObjectInfo(ctx context.Context, bucketName, objectName string) (*ObjectInfo, error)
@@ -408,3 +416,7 @@ func (n *layer) DeleteObjects(ctx context.Context, bucket string, objects []stri
 
 	return errs
 }
+
+func (n *layer) CreateBucket(ctx context.Context, p *CreateBucketParams) (*cid.ID, error) {
+	return n.createContainer(ctx, p)
+}

api/router.go

@@ -68,7 +68,7 @@ type (
 		PutBucketTaggingHandler(http.ResponseWriter, *http.Request)
 		PutBucketVersioningHandler(http.ResponseWriter, *http.Request)
 		PutBucketNotificationHandler(http.ResponseWriter, *http.Request)
-		PutBucketHandler(http.ResponseWriter, *http.Request)
+		CreateBucketHandler(http.ResponseWriter, *http.Request)
 		HeadBucketHandler(http.ResponseWriter, *http.Request)
 		PostPolicyBucketHandler(http.ResponseWriter, *http.Request)
 		DeleteMultipleObjectsHandler(http.ResponseWriter, *http.Request)
@@ -412,10 +412,10 @@ func Attach(r *mux.Router, domains []string, m MaxClients, h Handler, center aut
 		bucket.Methods(http.MethodPut).HandlerFunc(
 			m.Handle(metrics.APIStats("putbucketnotification", h.PutBucketNotificationHandler))).Queries("notification", "").
 			Name("PutBucketNotification")
-		// PutBucket
+		// CreateBucket
 		bucket.Methods(http.MethodPut).HandlerFunc(
-			m.Handle(metrics.APIStats("putbucket", h.PutBucketHandler))).
+			m.Handle(metrics.APIStats("createbucket", h.CreateBucketHandler))).
-			Name("PutBucket")
+			Name("CreateBucket")
 		// HeadBucket
 		bucket.Methods(http.MethodHead).HandlerFunc(
 			m.Handle(metrics.APIStats("headbucket", h.HeadBucketHandler))).