[#192] Add basic handlers for lifecycles

Signed-off-by: Denis Kirillov <denis@nspcc.ru>

api/data/info.go

@@ -57,8 +57,9 @@ type (
 
 	// BucketSettings stores settings such as versioning.
 	BucketSettings struct {
-		Versioning        string                   `json:"versioning"`
+		Versioning             string                   `json:"versioning"`
-		LockConfiguration *ObjectLockConfiguration `json:"lock_configuration"`
+		LockConfiguration      *ObjectLockConfiguration `json:"lock_configuration"`
+		LifecycleConfiguration *LifecycleConfiguration  `json:"lifecycle_configuration"`
 	}
 
 	// CORSConfiguration stores CORS configuration of a request.

api/data/lifecycle.go

@@ -0,0 +1,69 @@
+package data
+
+import "encoding/xml"
+
+type (
+	LifecycleConfiguration struct {
+		XMLName xml.Name `xml:"http://s3.amazonaws.com/doc/2006-03-01/ LifecycleConfiguration" json:"-"`
+		Rules   []Rule   `xml:"Rule" json:"Rule"`
+	}
+
+	Rule struct {
+		AbortIncompleteMultipartUpload AbortIncompleteMultipartUpload `xml:"AbortIncompleteMultipartUpload" json:"AbortIncompleteMultipartUpload"`
+		Expiration                     Expiration                     `xml:"Expiration" json:"Expiration"`
+		Filter                         LifecycleRuleFilter            `xml:"Filter" json:"Filter"`
+		ID                             string                         `xml:"ID" json:"ID"`
+		NoncurrentVersionExpiration    NoncurrentVersionExpiration    `xml:"NoncurrentVersionExpiration" json:"NoncurrentVersionExpiration"`
+		NoncurrentVersionTransitions   []NoncurrentVersionTransition  `xml:"NoncurrentVersionTransition" json:"NoncurrentVersionTransition"`
+		Prefix                         string                         `xml:"Prefix" json:"Prefix"`
+		Status                         string                         `xml:"Status" json:"Status"`
+		Transitions                    []Transition                   `xml:"Transition" json:"Transition"`
+	}
+
+	AbortIncompleteMultipartUpload struct {
+		DaysAfterInitiation int64 `xml:"DaysAfterInitiation"`
+	}
+
+	Expiration struct {
+		Date                      string `xml:"Date" json:"Date"`
+		Days                      int64  `xml:"Days" json:"Days"`
+		ExpiredObjectDeleteMarker bool   `xml:"ExpiredObjectDeleteMarker" json:"ExpiredObjectDeleteMarker"`
+	}
+
+	LifecycleRuleFilter struct {
+		And                   LifecycleRuleAndOperator `xml:"And" json:"And"`
+		ObjectSizeGreaterThan int64                    `xml:"ObjectSizeGreaterThan" json:"ObjectSizeGreaterThan"`
+		ObjectSizeLessThan    int64                    `xml:"ObjectSizeLessThan" json:"ObjectSizeLessThan"`
+		Prefix                string                   `xml:"Prefix" json:"Prefix"`
+		Tag                   Tag                      `xml:"Tag" json:"Tag"`
+	}
+
+	LifecycleRuleAndOperator struct {
+		ObjectSizeGreaterThan int64  `xml:"ObjectSizeGreaterThan" json:"ObjectSizeGreaterThan"`
+		ObjectSizeLessThan    int64  `xml:"ObjectSizeLessThan" json:"ObjectSizeLessThan"`
+		Prefix                string `xml:"Prefix" json:"Prefix"`
+		Tags                  []Tag  `xml:"Tags" json:"Tags"`
+	}
+
+	Tag struct {
+		Key   string `xml:"Key" json:"Key"`
+		Value string `xml:"Value" json:"Value"`
+	}
+
+	NoncurrentVersionExpiration struct {
+		NewerNoncurrentVersions int64 `xml:"NewerNoncurrentVersions" json:"NewerNoncurrentVersions"`
+		NoncurrentDays          int64 `xml:"NoncurrentDays" json:"NoncurrentDays"`
+	}
+
+	NoncurrentVersionTransition struct {
+		NewerNoncurrentVersions int64  `xml:"NewerNoncurrentVersions" json:"NewerNoncurrentVersions"`
+		NoncurrentDays          int64  `xml:"NoncurrentDays" json:"NoncurrentDays"`
+		StorageClass            string `xml:"StorageClass" json:"StorageClass"`
+	}
+
+	Transition struct {
+		Date         string `xml:"Date" json:"Date"`
+		Days         int64  `xml:"Days" json:"Days"`
+		StorageClass string `xml:"StorageClass" json:"StorageClass"`
+	}
+)

api/handler/lifecycle.go

@@ -0,0 +1,129 @@
+package handler
+
+import (
+	"context"
+	"encoding/xml"
+	"fmt"
+	"net/http"
+
+	"github.com/nspcc-dev/neofs-s3-gw/api"
+	"github.com/nspcc-dev/neofs-s3-gw/api/data"
+	apiErrors "github.com/nspcc-dev/neofs-s3-gw/api/errors"
+	"github.com/nspcc-dev/neofs-s3-gw/api/layer"
+)
+
+func (h *handler) PutBucketLifecycleHandler(w http.ResponseWriter, r *http.Request) {
+	reqInfo := api.GetReqInfo(r.Context())
+
+	bktInfo, err := h.obj.GetBucketInfo(r.Context(), reqInfo.BucketName)
+	if err != nil {
+		h.logAndSendError(w, "could not get bucket info", reqInfo, err)
+		return
+	}
+	if err = checkOwner(bktInfo, r.Header.Get(api.AmzExpectedBucketOwner)); err != nil {
+		h.logAndSendError(w, "expected owner doesn't match", reqInfo, err)
+		return
+	}
+
+	lifecycleConf := &data.LifecycleConfiguration{}
+	if err = xml.NewDecoder(r.Body).Decode(lifecycleConf); err != nil {
+		h.logAndSendError(w, "couldn't parse lifecycle configuration", reqInfo, err)
+		return
+	}
+
+	if err = checkLifecycleConfiguration(lifecycleConf); err != nil {
+		h.logAndSendError(w, "invalid lifecycle configuration", reqInfo, err)
+		return
+	}
+
+	if err = h.updateLifecycleConfiguration(r.Context(), bktInfo, lifecycleConf); err != nil {
+		h.logAndSendError(w, "couldn't put bucket settings", reqInfo, err)
+		return
+	}
+}
+
+func (h *handler) GetBucketLifecycleHandler(w http.ResponseWriter, r *http.Request) {
+	reqInfo := api.GetReqInfo(r.Context())
+
+	bktInfo, err := h.obj.GetBucketInfo(r.Context(), reqInfo.BucketName)
+	if err != nil {
+		h.logAndSendError(w, "could not get bucket info", reqInfo, err)
+		return
+	}
+	if err = checkOwner(bktInfo, r.Header.Get(api.AmzExpectedBucketOwner)); err != nil {
+		h.logAndSendError(w, "expected owner doesn't match", reqInfo, err)
+		return
+	}
+
+	settings, err := h.obj.GetBucketSettings(r.Context(), bktInfo)
+	if err != nil {
+		h.logAndSendError(w, "couldn't get bucket settings", reqInfo, err)
+		return
+	}
+
+	if settings.LifecycleConfiguration == nil {
+		h.logAndSendError(w, "lifecycle configuration doesn't exist", reqInfo,
+			apiErrors.GetAPIError(apiErrors.ErrNoSuchLifecycleConfiguration))
+		return
+	}
+
+	if err = api.EncodeToResponse(w, settings.LifecycleConfiguration); err != nil {
+		h.logAndSendError(w, "something went wrong", reqInfo, err)
+	}
+}
+
+func (h *handler) DeleteBucketLifecycleHandler(w http.ResponseWriter, r *http.Request) {
+	reqInfo := api.GetReqInfo(r.Context())
+
+	bktInfo, err := h.obj.GetBucketInfo(r.Context(), reqInfo.BucketName)
+	if err != nil {
+		h.logAndSendError(w, "could not get bucket info", reqInfo, err)
+		return
+	}
+	if err = checkOwner(bktInfo, r.Header.Get(api.AmzExpectedBucketOwner)); err != nil {
+		h.logAndSendError(w, "expected owner doesn't match", reqInfo, err)
+		return
+	}
+
+	if err = h.updateLifecycleConfiguration(r.Context(), bktInfo, nil); err != nil {
+		h.logAndSendError(w, "couldn't put bucket settings", reqInfo, err)
+		return
+	}
+	w.WriteHeader(http.StatusNoContent)
+}
+
+func (h *handler) updateLifecycleConfiguration(ctx context.Context, bktInfo *data.BucketInfo, lifecycleConf *data.LifecycleConfiguration) error {
+	settings, err := h.obj.GetBucketSettings(ctx, bktInfo)
+	if err != nil {
+		return fmt.Errorf("couldn't get bucket settings: %w", err)
+	}
+
+	settings.LifecycleConfiguration = lifecycleConf
+	sp := &layer.PutSettingsParams{
+		BktInfo:  bktInfo,
+		Settings: settings,
+	}
+
+	if err = h.obj.PutBucketSettings(ctx, sp); err != nil {
+		return fmt.Errorf("couldn't put bucket settings: %w", err)
+	}
+
+	return nil
+}
+
+func checkLifecycleConfiguration(conf *data.LifecycleConfiguration) error {
+	if len(conf.Rules) == 0 {
+		return apiErrors.GetAPIError(apiErrors.ErrMalformedXML)
+	}
+	if len(conf.Rules) > 1000 {
+		return fmt.Errorf("you cannot have more than 1000 rules")
+	}
+
+	for _, rule := range conf.Rules {
+		if rule.Status != enabledValue && rule.Status != disabledValue {
+			return apiErrors.GetAPIError(apiErrors.ErrMalformedXML)
+		}
+	}
+
+	return nil
+}

api/handler/locking.go

@@ -19,6 +19,7 @@ const (
 	yearDuration = 365 * dayDuration
 
 	enabledValue   = "Enabled"
+	disabledValue  = "Disabled"
 	governanceMode = "GOVERNANCE"
 	complianceMode = "COMPLIANCE"
 	legalHoldOn    = "ON"

api/handler/not_support.go

@@ -11,10 +11,6 @@ func (h *handler) DeleteBucketPolicyHandler(w http.ResponseWriter, r *http.Reque
 	h.logAndSendError(w, "not supported", api.GetReqInfo(r.Context()), errors.GetAPIError(errors.ErrNotSupported))
 }
 
-func (h *handler) DeleteBucketLifecycleHandler(w http.ResponseWriter, r *http.Request) {
-	h.logAndSendError(w, "not supported", api.GetReqInfo(r.Context()), errors.GetAPIError(errors.ErrNotSupported))
-}
-
 func (h *handler) DeleteBucketEncryptionHandler(w http.ResponseWriter, r *http.Request) {
 	h.logAndSendError(w, "not supported", api.GetReqInfo(r.Context()), errors.GetAPIError(errors.ErrNotSupported))
 }

api/handler/unimplemented.go

@@ -11,10 +11,6 @@ func (h *handler) SelectObjectContentHandler(w http.ResponseWriter, r *http.Requ
 	h.logAndSendError(w, "not implemented", api.GetReqInfo(r.Context()), errors.GetAPIError(errors.ErrNotImplemented))
 }
 
-func (h *handler) GetBucketLifecycleHandler(w http.ResponseWriter, r *http.Request) {
-	h.logAndSendError(w, "not implemented", api.GetReqInfo(r.Context()), errors.GetAPIError(errors.ErrNotImplemented))
-}
-
 func (h *handler) GetBucketEncryptionHandler(w http.ResponseWriter, r *http.Request) {
 	h.logAndSendError(w, "not implemented", api.GetReqInfo(r.Context()), errors.GetAPIError(errors.ErrNotImplemented))
 }
@@ -51,10 +47,6 @@ func (h *handler) ListObjectsV2MHandler(w http.ResponseWriter, r *http.Request)
 	h.logAndSendError(w, "not implemented", api.GetReqInfo(r.Context()), errors.GetAPIError(errors.ErrNotImplemented))
 }
 
-func (h *handler) PutBucketLifecycleHandler(w http.ResponseWriter, r *http.Request) {
-	h.logAndSendError(w, "not implemented", api.GetReqInfo(r.Context()), errors.GetAPIError(errors.ErrNotImplemented))
-}
-
 func (h *handler) PutBucketEncryptionHandler(w http.ResponseWriter, r *http.Request) {
 	h.logAndSendError(w, "not implemented", api.GetReqInfo(r.Context()), errors.GetAPIError(errors.ErrNotImplemented))
 }