[#681 ] acl: Prepare owner ID before processing

Signed-off-by: Denis Kirillov <denis@nspcc.ru>
2023-01-12 16:34:40 +03:00
124 changed files with 1215 additions and 2395 deletions
--- a/.docker/Dockerfile
+++ b/.docker/Dockerfile
@ -1,7 +1,7 @@
 FROM golang:1.19 as builder

 ARG BUILD=now
-ARG REPO=git.frostfs.info/TrueCloudLab/frostfs-s3-gw
+ARG REPO=github.com/TrueCloudLab/frostfs-s3-gw
 ARG VERSION=dev

 WORKDIR /src
--- a/.github/ISSUE_TEMPLATE/bug_report.md
+++ b/.github/ISSUE_TEMPLATE/bug_report.md
@ -1,45 +0,0 @@
---
-name: Bug report
-about: Create a report to help us improve
-title: ''
-labels: community, triage, bug
-assignees: ''
-
---
-
-<!--- Provide a general summary of the issue in the Title above -->
-
-## Expected Behavior
-<!--- If you're describing a bug, tell us what should happen -->
-<!--- If you're suggesting a change/improvement, tell us how it should work -->
-
-## Current Behavior
-<!--- If describing a bug, tell us what happens instead of the expected behavior -->
-<!--- If suggesting a change/improvement, explain the difference from current behavior -->
-
-## Possible Solution
-<!--- Not obligatory -->
-<!--- If no reason/fix/additions for the bug can be suggested, -->
-<!--- uncomment the following phrase: -->
-
-<!--- No fix can be suggested by a QA engineer. Further solutions shall be up to developers. -->
-
-## Steps to Reproduce (for bugs)
-<!--- Provide a link to a live example, or an unambiguous set of steps to -->
-<!--- reproduce this bug. -->
-
-1.
-
-## Context
-<!--- How has this issue affected you? What are you trying to accomplish? -->
-<!--- Providing context helps us come up with a solution that is most useful in the real world -->
-
-## Regression
-<!-- Is this issue a regression? (Yes / No) -->
-<!-- If Yes, optionally please include version or commit id or PR# that caused this regression, if you have these details. -->
-
-## Your Environment
-<!--- Include as many relevant details about the environment you experienced the bug in -->
-* Version used:
-* Server setup and configuration:
-* Operating System and version (`uname -a`):
--- a/.github/ISSUE_TEMPLATE/config.yml
+++ b/.github/ISSUE_TEMPLATE/config.yml
@ -1 +0,0 @@
-blank_issues_enabled: false
--- a/.github/ISSUE_TEMPLATE/feature_request.md
+++ b/.github/ISSUE_TEMPLATE/feature_request.md
@ -1,20 +0,0 @@
---
-name: Feature request
-about: Suggest an idea for this project
-title: ''
-labels: community, triage
-assignees: ''
-
---
-
-## Is your feature request related to a problem? Please describe.
-<!--- A clear and concise description of what the problem is. Ex. I'm always frustrated when [...] -->
-
-## Describe the solution you'd like
-<!--- A clear and concise description of what you want to happen. -->
-
-## Describe alternatives you've considered
-<!--- A clear and concise description of any alternative solutions or features you've considered. -->
-
-## Additional context
-<!--- Add any other context or screenshots about the feature request here. -->
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@ -68,7 +68,7 @@ jobs:
    runs-on: ubuntu-20.04
    strategy:
      matrix:
-        go_versions: [ '1.18.x', '1.19.x' ]
+        go_versions: [ '1.17', '1.18.x', '1.19.x' ]
      fail-fast: false
    steps:
      - uses: actions/checkout@v2
--- a/.gitignore
+++ b/.gitignore
@ -21,11 +21,4 @@ coverage.txt
 coverage.html

 # debhelpers
-**/*debhelper*
-
-# debian package build files
-debian/files
-debian/*.log
-debian/*.substvars
-debian/frostfs-s3-gw/
-
+**/.debhelper
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@ -4,30 +4,6 @@ This document outlines major changes between releases.

 ## [Unreleased]

-### Fixed
- Get empty bucket CORS from frostfs (TrueCloudLab#36)
- Don't count pool error on client abort (#35)
-
-### Added
- Return container name in `head-bucket` response (TrueCloudLab#18)
- Billing metrics (TrueCloudLab#5)
- Multiple configs support (TrueCloudLab#21)
- Bucket name resolving policy (TrueCloudLab#25)
- Support string `Action` and `Resource` fields in `bucketPolicy.Statement` (TrueCloudLab#32)
- Add new `kludge.use_default_xmlns_for_complete_multipart` config param (TrueCloudLab#40)
-
-### Changed
- Update neo-go to v0.101.0 (#14)
- Update viper to v1.15.0 (#14)
- Using multiple servers require only one healthy (TrueCloudLab#12)
- Update go version to go1.18 (TrueCloudLab#16)
- Return error on invalid LocationConstraint (TrueCloudLab#23)
- Place billing metrics to separate url path (TrueCloudLab#26)
- Add generated deb builder files to .gitignore, and fix typo (TrueCloudLab#28)
- Limit number of objects to delete at one time (TrueCloudLab#37) 
- CompleteMultipartUpload handler now sends whitespace characters to keep alive client's connection (#60)
- Support new system attributes (#64)
-
 ## [0.26.0] - 2022-12-28

 ### Added
--- a/README.md
+++ b/README.md
@ -6,7 +6,9 @@
 </p>

 ---
-[![Report](https://goreportcard.com/badge/git.frostfs.info/TrueCloudLab/frostfs-s3-gw)](https://goreportcard.com/report/git.frostfs.info/TrueCloudLab/frostfs-s3-gw)
+[![Report](https://goreportcard.com/badge/github.com/TrueCloudLab/frostfs-s3-gw)](https://goreportcard.com/report/github.com/TrueCloudLab/frostfs-s3-gw)
+![GitHub release (latest SemVer)](https://img.shields.io/github/v/release/TrueCloudLab/frostfs-s3-gw?sort=semver)
+![License](https://img.shields.io/github/license/TrueCloudLab/frostfs-s3-gw.svg?style=popout)

 # FrostFS S3 Gateway

@ -14,7 +16,7 @@ FrostFS S3 gateway provides API compatible with Amazon S3 cloud storage service.

 ## Installation

-```go get -u git.frostfs.info/TrueCloudLab/frostfs-s3-gw```
+```go get -u github.com/TrueCloudLab/frostfs-s3-gw```

 Or you can call `make` to build it from the cloned repository (the binary will
 end up in `bin/frostfs-s3-gw` with authmate helper in `bin/frostfs-s3-authmate`).
--- a/api/auth/center.go
+++ b/api/auth/center.go
@ -14,12 +14,12 @@ import (
 	"strings"
 	"time"

-	v4 "git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/auth/signer/v4"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/cache"
-	apiErrors "git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/creds/accessbox"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/creds/tokens"
-	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
+	v4 "github.com/TrueCloudLab/frostfs-s3-gw/api/auth/signer/v4"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/cache"
+	apiErrors "github.com/TrueCloudLab/frostfs-s3-gw/api/errors"
+	"github.com/TrueCloudLab/frostfs-s3-gw/creds/accessbox"
+	"github.com/TrueCloudLab/frostfs-s3-gw/creds/tokens"
+	oid "github.com/TrueCloudLab/frostfs-sdk-go/object/id"
 	"github.com/aws/aws-sdk-go/aws/credentials"
 	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
 )
--- a/api/auth/center_test.go
+++ b/api/auth/center_test.go
@ -5,7 +5,7 @@ import (
 	"testing"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/errors"
 	"github.com/stretchr/testify/require"
 )

--- a/api/cache/access_control.go
+++ b/api/cache/access_control.go
@ -4,7 +4,7 @@ import (
 	"fmt"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
+	"github.com/TrueCloudLab/frostfs-sdk-go/user"
 	"github.com/bluele/gcache"
 	"go.uber.org/zap"
 )
--- a/api/cache/accessbox.go
+++ b/api/cache/accessbox.go
@ -4,8 +4,8 @@ import (
 	"fmt"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/creds/accessbox"
-	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
+	"github.com/TrueCloudLab/frostfs-s3-gw/creds/accessbox"
+	oid "github.com/TrueCloudLab/frostfs-sdk-go/object/id"
 	"github.com/bluele/gcache"
 	"go.uber.org/zap"
 )
--- a/api/cache/buckets.go
+++ b/api/cache/buckets.go
@ -4,7 +4,7 @@ import (
 	"fmt"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
 	"github.com/bluele/gcache"
 	"go.uber.org/zap"
 )
--- a/api/cache/cache_test.go
+++ b/api/cache/cache_test.go
@ -3,10 +3,10 @@ package cache
 import (
 	"testing"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/creds/accessbox"
-	cidtest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id/test"
-	oidtest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id/test"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/creds/accessbox"
+	cidtest "github.com/TrueCloudLab/frostfs-sdk-go/container/id/test"
+	oidtest "github.com/TrueCloudLab/frostfs-sdk-go/object/id/test"
 	"github.com/stretchr/testify/require"
 	"go.uber.org/zap"
 	"go.uber.org/zap/zaptest/observer"
--- a/api/cache/names.go
+++ b/api/cache/names.go
@ -4,7 +4,7 @@ import (
 	"fmt"
 	"time"

-	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
+	oid "github.com/TrueCloudLab/frostfs-sdk-go/object/id"
 	"github.com/bluele/gcache"
 	"go.uber.org/zap"
 )
--- a/api/cache/objects.go
+++ b/api/cache/objects.go
@ -4,8 +4,8 @@ import (
 	"fmt"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	oid "github.com/TrueCloudLab/frostfs-sdk-go/object/id"
 	"github.com/bluele/gcache"
 	"go.uber.org/zap"
 )
--- a/api/cache/objects_test.go
+++ b/api/cache/objects_test.go
@ -4,9 +4,9 @@ import (
 	"testing"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
-	objecttest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/test"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	oid "github.com/TrueCloudLab/frostfs-sdk-go/object/id"
+	objecttest "github.com/TrueCloudLab/frostfs-sdk-go/object/test"
 	"github.com/stretchr/testify/require"
 	"go.uber.org/zap"
 )
--- a/api/cache/objectslist.go
+++ b/api/cache/objectslist.go
@ -6,8 +6,8 @@ import (
 	"strings"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	cid "github.com/TrueCloudLab/frostfs-sdk-go/container/id"
 	"github.com/bluele/gcache"
 	"go.uber.org/zap"
 )
--- a/api/cache/objectslist_test.go
+++ b/api/cache/objectslist_test.go
@ -4,9 +4,9 @@ import (
 	"testing"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	cidtest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id/test"
-	oidtest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id/test"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	cidtest "github.com/TrueCloudLab/frostfs-sdk-go/container/id/test"
+	oidtest "github.com/TrueCloudLab/frostfs-sdk-go/object/id/test"
 	"github.com/stretchr/testify/require"
 	"go.uber.org/zap"
 )
--- a/api/cache/system.go
+++ b/api/cache/system.go
@ -4,7 +4,7 @@ import (
 	"fmt"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
 	"github.com/bluele/gcache"
 	"go.uber.org/zap"
 )
--- a/api/data/info.go
+++ b/api/data/info.go
@ -4,9 +4,9 @@ import (
 	"encoding/xml"
 	"time"

-	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
-	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
+	cid "github.com/TrueCloudLab/frostfs-sdk-go/container/id"
+	oid "github.com/TrueCloudLab/frostfs-sdk-go/object/id"
+	"github.com/TrueCloudLab/frostfs-sdk-go/user"
 )

 const (
@ -22,8 +22,7 @@ const (
 type (
 	// BucketInfo stores basic bucket data.
 	BucketInfo struct {
-		Name               string // container name from system attribute
-		Zone               string // container zone from system attribute
+		Name               string
 		CID                cid.ID
 		Owner              user.ID
 		Created            time.Time
--- a/api/data/tree.go
+++ b/api/data/tree.go
@ -4,9 +4,9 @@ import (
 	"strconv"
 	"time"

-	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
-	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
+	cid "github.com/TrueCloudLab/frostfs-sdk-go/container/id"
+	oid "github.com/TrueCloudLab/frostfs-sdk-go/object/id"
+	"github.com/TrueCloudLab/frostfs-sdk-go/user"
 )

 const (
--- a/api/errors/errors.go
+++ b/api/errors/errors.go
@ -90,7 +90,6 @@ const (
 	ErrMissingFields
 	ErrMissingCredTag
 	ErrCredMalformed
-	ErrInvalidLocationConstraint
 	ErrInvalidRegion
 	ErrInvalidServiceS3
 	ErrInvalidServiceSTS
@ -681,12 +680,6 @@ var errorCodes = errorCodeMap{
 		Description:    "Error parsing the X-Amz-Credential parameter; the region is wrong;",
 		HTTPStatusCode: http.StatusBadRequest,
 	},
-	ErrInvalidLocationConstraint: {
-		ErrCode:        ErrInvalidLocationConstraint,
-		Code:           "InvalidLocationConstraint",
-		Description:    "The specified location (Region) constraint is not valid.",
-		HTTPStatusCode: http.StatusBadRequest,
-	},
 	ErrInvalidRegion: {
 		ErrCode:        ErrInvalidRegion,
 		Code:           "InvalidRegion",
--- a/api/handler/acl.go
+++ b/api/handler/acl.go
@ -14,15 +14,15 @@ import (
 	"strconv"
 	"strings"

-	v2acl "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/acl"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/eacl"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
-	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/session"
+	v2acl "github.com/TrueCloudLab/frostfs-api-go/v2/acl"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/errors"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/layer"
+	"github.com/TrueCloudLab/frostfs-sdk-go/eacl"
+	"github.com/TrueCloudLab/frostfs-sdk-go/object"
+	oid "github.com/TrueCloudLab/frostfs-sdk-go/object/id"
+	"github.com/TrueCloudLab/frostfs-sdk-go/session"
 	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
 	"go.uber.org/zap"
 )
@ -65,13 +65,10 @@ const (
 	aclRead        AWSACL = "READ"
 )

-// GranteeType is aws grantee permission type constants.
-type GranteeType string
-
 const (
-	acpCanonicalUser         GranteeType = "CanonicalUser"
-	acpAmazonCustomerByEmail GranteeType = "AmazonCustomerByEmail"
-	acpGroup                 GranteeType = "Group"
+	acpCanonicalUser         = "CanonicalUser"
+	acpAmazonCustomerByEmail = "AmazonCustomerByEmail"
+	acpGroup                 = "Group"
 )

 type bucketPolicy struct {
@ -158,90 +155,6 @@ func (s ServiceRecord) ToEACLRecord() *eacl.Record {
 	return serviceRecord
 }

-var (
-	errInvalidStatement = stderrors.New("invalid statement")
-	errInvalidPrincipal = stderrors.New("invalid principal")
-)
-
-func (s *statement) UnmarshalJSON(data []byte) error {
-	var statementMap map[string]interface{}
-	if err := json.Unmarshal(data, &statementMap); err != nil {
-		return err
-	}
-
-	sidField, ok := statementMap["Sid"]
-	if ok {
-		if s.Sid, ok = sidField.(string); !ok {
-			return errInvalidStatement
-		}
-	}
-
-	effectField, ok := statementMap["Effect"]
-	if ok {
-		if s.Effect, ok = effectField.(string); !ok {
-			return errInvalidStatement
-		}
-	}
-
-	principalField, ok := statementMap["Principal"]
-	if ok {
-		principalMap, ok := principalField.(map[string]interface{})
-		if !ok {
-			return errInvalidPrincipal
-		}
-
-		awsField, ok := principalMap["AWS"]
-		if ok {
-			if s.Principal.AWS, ok = awsField.(string); !ok {
-				return fmt.Errorf("%w: 'AWS' field must be string", errInvalidPrincipal)
-			}
-		}
-
-		canonicalUserField, ok := principalMap["CanonicalUser"]
-		if ok {
-			if s.Principal.CanonicalUser, ok = canonicalUserField.(string); !ok {
-				return errInvalidPrincipal
-			}
-		}
-	}
-
-	actionField, ok := statementMap["Action"]
-	if ok {
-		switch actionField := actionField.(type) {
-		case []interface{}:
-			s.Action = make([]string, len(actionField))
-			for i, action := range actionField {
-				if s.Action[i], ok = action.(string); !ok {
-					return errInvalidStatement
-				}
-			}
-		case string:
-			s.Action = []string{actionField}
-		default:
-			return errInvalidStatement
-		}
-	}
-
-	resourceField, ok := statementMap["Resource"]
-	if ok {
-		switch resourceField := resourceField.(type) {
-		case []interface{}:
-			s.Resource = make([]string, len(resourceField))
-			for i, action := range resourceField {
-				if s.Resource[i], ok = action.(string); !ok {
-					return errInvalidStatement
-				}
-			}
-		case string:
-			s.Resource = []string{resourceField}
-		default:
-			return errInvalidStatement
-		}
-	}
-
-	return nil
-}
-
 func (h *handler) GetBucketACLHandler(w http.ResponseWriter, r *http.Request) {
 	reqInfo := api.GetReqInfo(r.Context())

@ -304,6 +217,9 @@ func (h *handler) PutBucketACLHandler(w http.ResponseWriter, r *http.Request) {
 	} else if err = xml.NewDecoder(r.Body).Decode(list); err != nil {
 		h.logAndSendError(w, "could not parse bucket acl", reqInfo, errors.GetAPIError(errors.ErrMalformedXML))
 		return
+	} else {
+		// workaround to decode owner ID
+		list.Owner.ID = hex.EncodeToString(key.Bytes())
 	}

 	resInfo := &resourceInfo{Bucket: reqInfo.BucketName}
@ -439,6 +355,9 @@ func (h *handler) PutObjectACLHandler(w http.ResponseWriter, r *http.Request) {
 	} else if err = xml.NewDecoder(r.Body).Decode(list); err != nil {
 		h.logAndSendError(w, "could not parse bucket acl", reqInfo, errors.GetAPIError(errors.ErrMalformedXML))
 		return
+	} else {
+		// workaround to decode owner ID
+		list.Owner.ID = hex.EncodeToString(key.Bytes())
 	}

 	resInfo := &resourceInfo{
@ -553,7 +472,7 @@ func parseACLHeaders(header http.Header, key *keys.PublicKey) (*AccessControlPol
 		Grantee: &Grantee{
 			ID:          hex.EncodeToString(key.Bytes()),
 			DisplayName: key.Address(),
-			Type:        acpCanonicalUser,
+			Type:        formGranteeType(acpCanonicalUser),
 		},
 		Permission: aclFullControl,
 	}}
@ -593,7 +512,7 @@ func addGrantees(list []*Grant, headers http.Header, hdr string) ([]*Grant, erro
 	}

 	for _, grantee := range grantees {
-		if grantee.Type == acpAmazonCustomerByEmail || (grantee.Type == acpGroup && grantee.URI != allUsersGroup) {
+		if grantee.matchType(acpAmazonCustomerByEmail) || (grantee.matchType(acpGroup) && grantee.URI != allUsersGroup) {
 			return nil, stderrors.New("unsupported grantee type")
 		}

@ -643,17 +562,17 @@ func formGrantee(granteeType, value string) (*Grantee, error) {
 	case "id":
 		return &Grantee{
 			ID:   value,
-			Type: acpCanonicalUser,
+			Type: formGranteeType(acpCanonicalUser),
 		}, nil
 	case "uri":
 		return &Grantee{
 			URI:  value,
-			Type: acpGroup,
+			Type: formGranteeType(acpGroup),
 		}, nil
 	case "emailAddress":
 		return &Grantee{
 			EmailAddress: value,
-			Type:         acpAmazonCustomerByEmail,
+			Type:         formGranteeType(acpAmazonCustomerByEmail),
 		}, nil
 	}
 	// do not return grantee type to avoid sensitive data logging (#489)
@ -667,7 +586,7 @@ func addPredefinedACP(acp *AccessControlPolicy, cannedACL string) (*AccessContro
 		acp.AccessControlList = append(acp.AccessControlList, &Grant{
 			Grantee: &Grantee{
 				URI:  allUsersGroup,
-				Type: acpGroup,
+				Type: formGranteeType(acpGroup),
 			},
 			Permission: aclFullControl,
 		})
@ -677,7 +596,7 @@ func addPredefinedACP(acp *AccessControlPolicy, cannedACL string) (*AccessContro
 		acp.AccessControlList = append(acp.AccessControlList, &Grant{
 			Grantee: &Grantee{
 				URI:  allUsersGroup,
-				Type: acpGroup,
+				Type: formGranteeType(acpGroup),
 			},
 			Permission: aclRead,
 		})
@ -1257,12 +1176,12 @@ func aclToAst(acl *AccessControlPolicy, resInfo *resourceInfo) (*ast, error) {
 	}

 	for _, grant := range acl.AccessControlList {
-		if grant.Grantee.Type == acpAmazonCustomerByEmail || (grant.Grantee.Type == acpGroup && grant.Grantee.URI != allUsersGroup) {
+		if grant.Grantee.matchType(acpAmazonCustomerByEmail) || (grant.Grantee.matchType(acpGroup) && grant.Grantee.URI != allUsersGroup) {
 			return nil, stderrors.New("unsupported grantee type")
 		}

 		var groupGrantee bool
-		if grant.Grantee.Type == acpGroup {
+		if grant.Grantee.matchType(acpGroup) {
 			groupGrantee = true
 		} else if grant.Grantee.ID == acl.Owner.ID {
 			continue
@ -1296,12 +1215,12 @@ func aclToPolicy(acl *AccessControlPolicy, resInfo *resourceInfo) (*bucketPolicy
 	}

 	for _, grant := range acl.AccessControlList {
-		if grant.Grantee.Type == acpAmazonCustomerByEmail || (grant.Grantee.Type == acpGroup && grant.Grantee.URI != allUsersGroup) {
+		if grant.Grantee.matchType(acpAmazonCustomerByEmail) || (grant.Grantee.matchType(acpGroup) && grant.Grantee.URI != allUsersGroup) {
 			return nil, stderrors.New("unsupported grantee type")
 		}

 		user := grant.Grantee.ID
-		if grant.Grantee.Type == acpGroup {
+		if grant.Grantee.matchType(acpGroup) {
 			user = allUsersWildcard
 		} else if user == acl.Owner.ID {
 			continue
@ -1461,10 +1380,10 @@ func (h *handler) encodeObjectACL(bucketACL *layer.BucketACL, bucketName, object

 		var grantee *Grantee
 		if key == allUsersGroup {
-			grantee = NewGrantee(acpGroup)
+			grantee = NewGrantee(formGranteeType(acpGroup))
 			grantee.URI = allUsersGroup
 		} else {
-			grantee = NewGrantee(acpCanonicalUser)
+			grantee = NewGrantee(formGranteeType(acpCanonicalUser))
 			grantee.ID = key
 		}

@ -1537,7 +1456,7 @@ func bucketACLToTable(acp *AccessControlPolicy, resInfo *resourceInfo) (*eacl.Ta
 }

 func getRecordFunction(grantee *Grantee) (getRecordFunc, error) {
-	switch grantee.Type {
+	switch grantee.TypeString() {
 	case acpAmazonCustomerByEmail:
 	case acpCanonicalUser:
 		pk, err := keys.NewPublicKeyFromString(grantee.ID)
@ -1557,7 +1476,7 @@ func getRecordFunction(grantee *Grantee) (getRecordFunc, error) {

 func isValidGrant(grant *Grant) bool {
 	return (grant.Permission == aclFullControl || grant.Permission == aclRead || grant.Permission == aclWrite) &&
-		(grant.Grantee.Type == acpCanonicalUser || (grant.Grantee.Type == acpGroup && grant.Grantee.URI == allUsersGroup))
+		(grant.Grantee.matchType(acpCanonicalUser) || (grant.Grantee.matchType(acpGroup) && grant.Grantee.URI == allUsersGroup))
 }

 func getAllowRecord(op eacl.Operation, pk *keys.PublicKey) *eacl.Record {
--- a/api/handler/acl_test.go
+++ b/api/handler/acl_test.go
@ -8,19 +8,20 @@ import (
 	"crypto/sha256"
 	"encoding/hex"
 	"encoding/json"
+	"encoding/xml"
 	"fmt"
 	"io"
 	"net/http"
 	"testing"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/creds/accessbox"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/bearer"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/eacl"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
-	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/session"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/creds/accessbox"
+	"github.com/TrueCloudLab/frostfs-sdk-go/bearer"
+	"github.com/TrueCloudLab/frostfs-sdk-go/eacl"
+	"github.com/TrueCloudLab/frostfs-sdk-go/object"
+	oid "github.com/TrueCloudLab/frostfs-sdk-go/object/id"
+	"github.com/TrueCloudLab/frostfs-sdk-go/session"
 	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
 	"github.com/stretchr/testify/require"
 )
@ -724,13 +725,13 @@ func TestBucketAclToPolicy(t *testing.T) {
 		AccessControlList: []*Grant{{
 			Grantee: &Grantee{
 				URI:  allUsersGroup,
-				Type: acpGroup,
+				Type: formGranteeType(acpGroup),
 			},
 			Permission: aclRead,
 		}, {
 			Grantee: &Grantee{
 				ID:   id2,
-				Type: acpCanonicalUser,
+				Type: formGranteeType(acpCanonicalUser),
 			},
 			Permission: aclWrite,
 		}},
@ -790,19 +791,19 @@ func TestObjectAclToPolicy(t *testing.T) {
 		AccessControlList: []*Grant{{
 			Grantee: &Grantee{
 				ID:   id,
-				Type: acpCanonicalUser,
+				Type: formGranteeType(acpCanonicalUser),
 			},
 			Permission: aclFullControl,
 		}, {
 			Grantee: &Grantee{
 				ID:   id2,
-				Type: acpCanonicalUser,
+				Type: formGranteeType(acpCanonicalUser),
 			},
 			Permission: aclFullControl,
 		}, {
 			Grantee: &Grantee{
 				URI:  allUsersGroup,
-				Type: acpGroup,
+				Type: formGranteeType(acpGroup),
 			},
 			Permission: aclRead,
 		}},
@ -859,7 +860,7 @@ func TestObjectWithVersionAclToTable(t *testing.T) {
 		AccessControlList: []*Grant{{
 			Grantee: &Grantee{
 				ID:   id,
-				Type: acpCanonicalUser,
+				Type: formGranteeType(acpCanonicalUser),
 			},
 			Permission: aclFullControl,
 		}},
@ -980,13 +981,13 @@ func TestParseCannedACLHeaders(t *testing.T) {
 			Grantee: &Grantee{
 				ID:          id,
 				DisplayName: address,
-				Type:        acpCanonicalUser,
+				Type:        formGranteeType(acpCanonicalUser),
 			},
 			Permission: aclFullControl,
 		}, {
 			Grantee: &Grantee{
 				URI:  allUsersGroup,
-				Type: acpGroup,
+				Type: formGranteeType(acpGroup),
 			},
 			Permission: aclRead,
 		}},
@ -1021,37 +1022,37 @@ func TestParseACLHeaders(t *testing.T) {
 			Grantee: &Grantee{
 				ID:          id,
 				DisplayName: address,
-				Type:        acpCanonicalUser,
+				Type:        formGranteeType(acpCanonicalUser),
 			},
 			Permission: aclFullControl,
 		}, {
 			Grantee: &Grantee{
 				ID:   "user1",
-				Type: acpCanonicalUser,
+				Type: formGranteeType(acpCanonicalUser),
 			},
 			Permission: aclFullControl,
 		}, {
 			Grantee: &Grantee{
 				URI:  allUsersGroup,
-				Type: acpGroup,
+				Type: formGranteeType(acpGroup),
 			},
 			Permission: aclRead,
 		}, {
 			Grantee: &Grantee{
 				ID:   "user2",
-				Type: acpCanonicalUser,
+				Type: formGranteeType(acpCanonicalUser),
 			},
 			Permission: aclRead,
 		}, {
 			Grantee: &Grantee{
 				ID:   "user2",
-				Type: acpCanonicalUser,
+				Type: formGranteeType(acpCanonicalUser),
 			},
 			Permission: aclWrite,
 		}, {
 			Grantee: &Grantee{
 				ID:   "user3",
-				Type: acpCanonicalUser,
+				Type: formGranteeType(acpCanonicalUser),
 			},
 			Permission: aclWrite,
 		}},
@ -1112,13 +1113,13 @@ func TestBucketAclToTable(t *testing.T) {
 		AccessControlList: []*Grant{{
 			Grantee: &Grantee{
 				URI:  allUsersGroup,
-				Type: acpGroup,
+				Type: formGranteeType(acpGroup),
 			},
 			Permission: aclRead,
 		}, {
 			Grantee: &Grantee{
 				ID:   id2,
-				Type: acpCanonicalUser,
+				Type: formGranteeType(acpCanonicalUser),
 			},
 			Permission: aclWrite,
 		}},
@ -1169,13 +1170,13 @@ func TestObjectAclToAst(t *testing.T) {
 		AccessControlList: []*Grant{{
 			Grantee: &Grantee{
 				ID:   id,
-				Type: acpCanonicalUser,
+				Type: formGranteeType(acpCanonicalUser),
 			},
 			Permission: aclFullControl,
 		}, {
 			Grantee: &Grantee{
 				ID:   id2,
-				Type: acpCanonicalUser,
+				Type: formGranteeType(acpCanonicalUser),
 			},
 			Permission: aclRead,
 		},
@ -1238,13 +1239,13 @@ func TestBucketAclToAst(t *testing.T) {
 			{
 				Grantee: &Grantee{
 					ID:   id2,
-					Type: acpCanonicalUser,
+					Type: formGranteeType(acpCanonicalUser),
 				},
 				Permission: aclWrite,
 			}, {
 				Grantee: &Grantee{
 					URI:  allUsersGroup,
-					Type: acpGroup,
+					Type: formGranteeType(acpGroup),
 				},
 				Permission: aclRead,
 			},
@ -1352,85 +1353,6 @@ func TestBucketPolicy(t *testing.T) {
 	}
 }

-func TestBucketPolicyUnmarshal(t *testing.T) {
-	for _, tc := range []struct {
-		name   string
-		policy string
-	}{
-		{
-			name: "action/resource array",
-			policy: `
-{
-	"Version": "2012-10-17",
-	"Statement": [{
-		"Principal": {
-			"AWS": "arn:aws:iam::111122223333:role/JohnDoe"
-		},
-		"Effect": "Allow",
-		"Action": [
-			"s3:GetObject", 
-			"s3:GetObjectVersion"
-		],
-		"Resource": [
-			"arn:aws:s3:::DOC-EXAMPLE-BUCKET/*",
-			"arn:aws:s3:::DOC-EXAMPLE-BUCKET2/*"
-		]
-	}]
-}
-`,
-		},
-		{
-			name: "action/resource string",
-			policy: `
-{
-	"Version": "2012-10-17",
-	"Statement": [{
-		"Principal": {
-			"AWS": "arn:aws:iam::111122223333:role/JohnDoe"
-		},
-		"Effect": "Deny",
-		"Action": "s3:GetObject",
-		"Resource": "arn:aws:s3:::DOC-EXAMPLE-BUCKET/*"
-	}]
-}
-`,
-		},
-	} {
-		t.Run(tc.name, func(t *testing.T) {
-			bktPolicy := &bucketPolicy{}
-			err := json.Unmarshal([]byte(tc.policy), bktPolicy)
-			require.NoError(t, err)
-		})
-	}
-}
-
-func TestPutBucketPolicy(t *testing.T) {
-	bktPolicy := `
-{
-	"Version": "2012-10-17",
-	"Statement": [{
-		"Principal": {
-			"AWS": "*"
-		},
-		"Effect": "Deny",
-		"Action": "s3:GetObject",
-		"Resource": "arn:aws:s3:::bucket-for-policy/*"
-	}]
-}
-`
-	hc := prepareHandlerContext(t)
-	bktName := "bucket-for-policy"
-
-	box, _ := createAccessBox(t)
-	createBucket(t, hc, bktName, box)
-
-	w, r := prepareTestPayloadRequest(hc, bktName, "", bytes.NewReader([]byte(bktPolicy)))
-	ctx := context.WithValue(r.Context(), api.BoxData, box)
-	r = r.WithContext(ctx)
-	hc.Handler().PutBucketPolicyHandler(w, r)
-	assertStatus(hc.t, w, http.StatusOK)
-}
-
 func getBucketPolicy(hc *handlerContext, bktName string) *bucketPolicy {
 	w, r := prepareTestRequest(hc, bktName, "", nil)
 	hc.Handler().GetBucketPolicyHandler(w, r)
@ -1515,3 +1437,47 @@ func putBucketACL(t *testing.T, tc *handlerContext, bktName string, box *accessb
 	tc.Handler().PutBucketACLHandler(w, r)
 	assertStatus(t, w, http.StatusOK)
 }
+
+func TestACLGranteeParse(t *testing.T) {
+	body := []byte(`
+<AccessControlPolicy xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
+	<Owner>
+		<DisplayName>NbUgTSFvPmsRxmGeWpuuGeJUoRoi6PErcM</DisplayName>
+		<ID>NbUgTSFvPmsRxmGeWpuuGeJUoRoi6PErcM</ID>
+	</Owner>
+	<AccessControlList>
+		<Grant>
+			<Grantee xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="CanonicalUser">
+				<ID>031a6c6fbbdf02ca351745fa86b9ba5a9452d785ac4f7fc2b7548ca2a46c4fcf4a</ID>
+			</Grantee>
+			<Permission>FULL_CONTROL</Permission>
+		</Grant>
+		<Grant>
+			<Grantee xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="Group">
+				<URI>http://acs.amazonaws.com/groups/global/AllUsers</URI>
+			</Grantee>
+			<Permission>FULL_CONTROL</Permission>
+		</Grant>
+	</AccessControlList>
+</AccessControlPolicy>
+`)
+
+	acl := &AccessControlPolicy{}
+	err := xml.Unmarshal(body, acl)
+	require.NoError(t, err)
+	require.True(t, acl.AccessControlList[0].Grantee.matchType(acpCanonicalUser))
+	require.True(t, acl.AccessControlList[1].Grantee.matchType(acpGroup))
+
+	grantee := NewGrantee(formGranteeType(acpGroup))
+	grantee.URI = allUsersGroup
+
+	raw, err := xml.MarshalIndent(grantee, "", "  ")
+	require.NoError(t, err)
+
+	grantee2 := &Grantee{}
+	err = xml.Unmarshal(raw, grantee2)
+	require.NoError(t, err)
+
+	grantee2.XMLNS.Value = granteeXMLNS
+	require.Equal(t, grantee, grantee2)
+}
--- a/api/handler/api.go
+++ b/api/handler/api.go
@ -1,14 +1,12 @@
 package handler

 import (
-	"encoding/xml"
 	"errors"
-	"io"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/netmap"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/layer"
+	"github.com/TrueCloudLab/frostfs-sdk-go/netmap"
 	"go.uber.org/zap"
 )

@ -28,23 +26,15 @@ type (
 	// Config contains data which handler needs to keep.
 	Config struct {
 		Policy             PlacementPolicy
-		XMLDecoder                 XMLDecoderProvider
 		DefaultMaxAge      int
 		NotificatorEnabled bool
 		CopiesNumber       uint32
-		ResolveZoneList            []string
-		IsResolveListAllow         bool // True if ResolveZoneList contains allowed zones
-		CompleteMultipartKeepalive time.Duration
 	}

 	PlacementPolicy interface {
 		Default() netmap.PlacementPolicy
 		Get(string) (netmap.PlacementPolicy, bool)
 	}
-
-	XMLDecoderProvider interface {
-		NewCompleteMultipartDecoder(io.Reader) *xml.Decoder
-	}
 )

 const (
--- a/api/handler/attributes.go
+++ b/api/handler/attributes.go
@ -6,10 +6,10 @@ import (
 	"strconv"
 	"strings"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/errors"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/layer"
 	"go.uber.org/zap"
 )

--- a/api/handler/attributes_test.go
+++ b/api/handler/attributes_test.go
@ -4,7 +4,7 @@ import (
 	"strings"
 	"testing"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
 	"github.com/stretchr/testify/require"
 )

--- a/api/handler/copy.go
+++ b/api/handler/copy.go
@ -6,12 +6,12 @@ import (
 	"regexp"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/auth"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/session"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/auth"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/errors"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/layer"
+	"github.com/TrueCloudLab/frostfs-sdk-go/session"
 	"go.uber.org/zap"
 )

--- a/api/handler/copy_test.go
+++ b/api/handler/copy_test.go
@ -6,7 +6,7 @@ import (
 	"net/url"
 	"testing"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
 	"github.com/stretchr/testify/require"
 )

--- a/api/handler/cors.go
+++ b/api/handler/cors.go
@ -5,9 +5,9 @@ import (
 	"strconv"
 	"strings"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/errors"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/layer"
 	"go.uber.org/zap"
 )

--- a/api/handler/cors_test.go
+++ b/api/handler/cors_test.go
@ -1,41 +0,0 @@
-package handler
-
-import (
-	"context"
-	"net/http"
-	"strings"
-	"testing"
-
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-)
-
-func TestCORSOriginWildcard(t *testing.T) {
-	body := `
-<CORSConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
-	<CORSRule>
-		<AllowedMethod>GET</AllowedMethod>
-		<AllowedOrigin>*</AllowedOrigin>
-	</CORSRule>
-</CORSConfiguration>
-`
-	hc := prepareHandlerContext(t)
-
-	bktName := "bucket-for-cors"
-	box, _ := createAccessBox(t)
-	w, r := prepareTestRequest(hc, bktName, "", nil)
-	ctx := context.WithValue(r.Context(), api.BoxData, box)
-	r = r.WithContext(ctx)
-	r.Header.Add(api.AmzACL, "public-read")
-	hc.Handler().CreateBucketHandler(w, r)
-	assertStatus(t, w, http.StatusOK)
-
-	w, r = prepareTestPayloadRequest(hc, bktName, "", strings.NewReader(body))
-	ctx = context.WithValue(r.Context(), api.BoxData, box)
-	r = r.WithContext(ctx)
-	hc.Handler().PutBucketCorsHandler(w, r)
-	assertStatus(t, w, http.StatusOK)
-
-	w, r = prepareTestPayloadRequest(hc, bktName, "", nil)
-	hc.Handler().GetBucketCorsHandler(w, r)
-	assertStatus(t, w, http.StatusOK)
-}
--- a/api/handler/delete.go
+++ b/api/handler/delete.go
@ -6,20 +6,17 @@ import (
 	"strconv"
 	"strings"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer"
-	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
-	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/session"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/errors"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/layer"
+	apistatus "github.com/TrueCloudLab/frostfs-sdk-go/client/status"
+	oid "github.com/TrueCloudLab/frostfs-sdk-go/object/id"
+	"github.com/TrueCloudLab/frostfs-sdk-go/session"
 	"go.uber.org/zap"
 	"go.uber.org/zap/zapcore"
 )

-// limitation of AWS https://docs.aws.amazon.com/AmazonS3/latest/API/API_DeleteObjects.html
-const maxObjectsToDelete = 1000
-
 // DeleteObjectsRequest -- xml carrying the object key names which should be deleted.
 type DeleteObjectsRequest struct {
 	// Element to enable quiet mode for the request
@ -179,11 +176,6 @@ func (h *handler) DeleteMultipleObjectsHandler(w http.ResponseWriter, r *http.Re
 		return
 	}

-	if len(requested.Objects) == 0 || len(requested.Objects) > maxObjectsToDelete {
-		h.logAndSendError(w, "number of objects to delete must be greater than 0 and less or equal to 1000", reqInfo, errors.GetAPIError(errors.ErrMalformedXML))
-		return
-	}
-
 	removed := make(map[string]*layer.VersionedObject)
 	toRemove := make([]*layer.VersionedObject, 0, len(requested.Objects))
 	for _, obj := range requested.Objects {
--- a/api/handler/delete_test.go
+++ b/api/handler/delete_test.go
@ -6,8 +6,8 @@ import (
 	"net/url"
 	"testing"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
 	"github.com/stretchr/testify/require"
 )

--- a/api/handler/encryption_test.go
+++ b/api/handler/encryption_test.go
@ -12,8 +12,8 @@ import (
 	"strings"
 	"testing"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/layer"
 	"github.com/stretchr/testify/require"
 )

--- a/api/handler/get.go
+++ b/api/handler/get.go
@ -8,10 +8,10 @@ import (
 	"strings"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/errors"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/layer"
 	"go.uber.org/zap"
 )

--- a/api/handler/get_test.go
+++ b/api/handler/get_test.go
@ -8,9 +8,9 @@ import (
 	"testing"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/errors"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/layer"
 	"github.com/stretchr/testify/require"
 )

--- a/api/handler/handlers_test.go
+++ b/api/handler/handlers_test.go
@ -13,15 +13,15 @@ import (
 	"testing"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/resolver"
-	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/netmap"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
-	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/layer"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/resolver"
+	cid "github.com/TrueCloudLab/frostfs-sdk-go/container/id"
+	"github.com/TrueCloudLab/frostfs-sdk-go/netmap"
+	"github.com/TrueCloudLab/frostfs-sdk-go/object"
+	oid "github.com/TrueCloudLab/frostfs-sdk-go/object/id"
+	"github.com/TrueCloudLab/frostfs-sdk-go/user"
 	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
 	"github.com/stretchr/testify/require"
 	"go.uber.org/zap"
@ -63,12 +63,6 @@ func (p *placementPolicyMock) Get(string) (netmap.PlacementPolicy, bool) {
 	return netmap.PlacementPolicy{}, false
 }

-type xmlDecoderProviderMock struct{}
-
-func (p *xmlDecoderProviderMock) NewCompleteMultipartDecoder(r io.Reader) *xml.Decoder {
-	return xml.NewDecoder(r)
-}
-
 func prepareHandlerContext(t *testing.T) *handlerContext {
 	key, err := keys.NewPrivateKey()
 	require.NoError(t, err)
@ -100,7 +94,6 @@ func prepareHandlerContext(t *testing.T) *handlerContext {
 		obj: layer.NewLayer(l, tp, layerCfg),
 		cfg: &Config{
 			Policy: &placementPolicyMock{defaultPolicy: pp},
-			XMLDecoder: &xmlDecoderProviderMock{},
 		},
 	}

--- a/api/handler/head.go
+++ b/api/handler/head.go
@ -4,10 +4,10 @@ import (
 	"bytes"
 	"net/http"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/errors"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/layer"
 	"go.uber.org/zap"
 )

@ -124,12 +124,6 @@ func (h *handler) HeadBucketHandler(w http.ResponseWriter, r *http.Request) {

 	w.Header().Set(api.ContainerID, bktInfo.CID.EncodeToString())
 	w.Header().Set(api.AmzBucketRegion, bktInfo.LocationConstraint)
-
-	if isAvailableToResolve(bktInfo.Zone, h.cfg.ResolveZoneList, h.cfg.IsResolveListAllow) {
-		w.Header().Set(api.ContainerName, bktInfo.Name)
-		w.Header().Set(api.ContainerZone, bktInfo.Zone)
-	}
-
 	api.WriteResponse(w, http.StatusOK, nil, api.MimeNone)
 }

@ -163,25 +157,3 @@ func writeLockHeaders(h http.Header, legalHold *data.LegalHold, retention *data.
 		h.Set(api.AmzObjectLockMode, retention.Mode)
 	}
 }
-
-func isAvailableToResolve(zone string, list []string, isAllowList bool) bool {
-	// empty zone means container doesn't have proper system name,
-	// so we don't have to resolve it
-	if len(zone) == 0 {
-		return false
-	}
-
-	var zoneInList bool
-	for _, t := range list {
-		if t == zone {
-			zoneInList = true
-			break
-		}
-	}
-	// InList | IsAllowList | Result
-	//    0         0          1
-	//    0         1          0
-	//    1         0          0
-	//    1         1          1
-	return zoneInList == isAllowList
-}
--- a/api/handler/head_test.go
+++ b/api/handler/head_test.go
@ -6,10 +6,10 @@ import (
 	"testing"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/creds/accessbox"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/bearer"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/eacl"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/creds/accessbox"
+	"github.com/TrueCloudLab/frostfs-sdk-go/bearer"
+	"github.com/TrueCloudLab/frostfs-sdk-go/eacl"
 	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
 	"github.com/stretchr/testify/require"
 )
@ -86,26 +86,6 @@ func TestInvalidAccessThroughCache(t *testing.T) {
 	assertStatus(t, w, http.StatusForbidden)
 }

-func TestIsAvailableToResolve(t *testing.T) {
-	list := []string{"container", "s3"}
-
-	for i, testCase := range [...]struct {
-		isAllowList bool
-		list        []string
-		zone        string
-		expected    bool
-	}{
-		{isAllowList: true, list: list, zone: "container", expected: true},
-		{isAllowList: true, list: list, zone: "sftp", expected: false},
-		{isAllowList: false, list: list, zone: "s3", expected: false},
-		{isAllowList: false, list: list, zone: "system", expected: true},
-		{isAllowList: true, list: list, zone: "", expected: false},
-	} {
-		result := isAvailableToResolve(testCase.zone, testCase.list, testCase.isAllowList)
-		require.Equal(t, testCase.expected, result, "case %d", i+1)
-	}
-}
-
 func newTestAccessBox(t *testing.T, key *keys.PrivateKey) *accessbox.Box {
 	var err error
 	if key == nil {
--- a/api/handler/info.go
+++ b/api/handler/info.go
@ -3,7 +3,7 @@ package handler
 import (
 	"net/http"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
 )

 func (h *handler) GetBucketLocationHandler(w http.ResponseWriter, r *http.Request) {
--- a/api/handler/list.go
+++ b/api/handler/list.go
@ -4,8 +4,8 @@ import (
 	"net/http"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-sdk-go/user"
 )

 const maxObjectList = 1000 // Limit number of objects in a listObjectsResponse/listObjectsVersionsResponse.
--- a/api/handler/locking.go
+++ b/api/handler/locking.go
@ -8,10 +8,10 @@ import (
 	"strconv"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	apiErrors "git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	apiErrors "github.com/TrueCloudLab/frostfs-s3-gw/api/errors"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/layer"
 )

 const (
--- a/api/handler/locking_test.go
+++ b/api/handler/locking_test.go
@ -10,9 +10,9 @@ import (
 	"testing"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	apiErrors "git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	apiErrors "github.com/TrueCloudLab/frostfs-s3-gw/api/errors"
 	"github.com/stretchr/testify/require"
 )

--- a/api/handler/multipart_upload.go
+++ b/api/handler/multipart_upload.go
@ -2,17 +2,16 @@ package handler

 import (
 	"encoding/xml"
-	"fmt"
-	"io"
 	"net/http"
 	"net/url"
 	"strconv"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/errors"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/layer"
+	"github.com/TrueCloudLab/frostfs-sdk-go/session"
 	"github.com/google/uuid"
 	"go.uber.org/zap"
 )
@ -373,6 +372,8 @@ func (h *handler) CompleteMultipartUploadHandler(w http.ResponseWriter, r *http.
 	}

 	var (
+		sessionTokenSetEACL *session.Container
+
 		uploadID   = r.URL.Query().Get(uploadIDHeaderName)
 		uploadInfo = &layer.UploadInfoParams{
 			UploadID: uploadID,
@ -383,7 +384,7 @@ func (h *handler) CompleteMultipartUploadHandler(w http.ResponseWriter, r *http.
 	)

 	reqBody := new(CompleteMultipartUpload)
-	if err = h.cfg.XMLDecoder.NewCompleteMultipartDecoder(r.Body).Decode(reqBody); err != nil {
+	if err = xml.NewDecoder(r.Body).Decode(reqBody); err != nil {
 		h.logAndSendError(w, "could not read complete multipart upload xml", reqInfo,
 			errors.GetAPIError(errors.ErrMalformedXML), additional...)
 		return
@ -398,51 +399,10 @@ func (h *handler) CompleteMultipartUploadHandler(w http.ResponseWriter, r *http.
 		Parts: reqBody.Parts,
 	}

-	// Next operations might take some time, so we want to keep client's
-	// connection alive. To do so, gateway sends periodic white spaces
-	// back to the client the same way as Amazon S3 service does.
-	stopPeriodicResponseWriter := periodicXMLWriter(w, h.cfg.CompleteMultipartKeepalive)
-
-	// Start complete multipart upload which may take some time to fetch object
-	// and re-upload it part by part.
-	objInfo, err := h.completeMultipartUpload(r, c, bktInfo, reqInfo)
-
-	// Stop periodic writer as complete multipart upload is finished
-	// successfully or not.
-	headerIsWritten := stopPeriodicResponseWriter()
-
-	responseWriter := api.EncodeToResponse
-	errLogger := h.logAndSendError
-	// Do not send XML and HTTP headers if periodic writer was invoked at this point.
-	if headerIsWritten {
-		responseWriter = api.EncodeToResponseNoHeader
-		errLogger = h.logAndSendErrorNoHeader
-	}
-
-	if err != nil {
-		errLogger(w, "complete multipart error", reqInfo, err, additional...)
-		return
-	}
-
-	response := CompleteMultipartUploadResponse{
-		Bucket: objInfo.Bucket,
-		ETag:   objInfo.HashSum,
-		Key:    objInfo.Name,
-	}
-
-	// Here we previously set api.AmzVersionID header for versioned bucket.
-	// It is not possible after #60, because of periodic white
-	// space XML writer to keep connection with the client.
-
-	if err = responseWriter(w, response); err != nil {
-		errLogger(w, "something went wrong", reqInfo, err)
-	}
-}
-
-func (h *handler) completeMultipartUpload(r *http.Request, c *layer.CompleteMultipartParams, bktInfo *data.BucketInfo, reqInfo *api.ReqInfo) (*data.ObjectInfo, error) {
 	uploadData, extendedObjInfo, err := h.obj.CompleteMultipartUpload(r.Context(), c)
 	if err != nil {
-		return nil, fmt.Errorf("could not complete multipart upload: %w", err)
+		h.logAndSendError(w, "could not complete multipart upload", reqInfo, err, additional...)
+		return
 	}
 	objInfo := extendedObjInfo.ObjectInfo

@ -457,22 +417,21 @@ func (h *handler) completeMultipartUpload(r *http.Request, c *layer.CompleteMult
 			NodeVersion: extendedObjInfo.NodeVersion,
 		}
 		if _, err = h.obj.PutObjectTagging(r.Context(), tagPrm); err != nil {
-			return nil, fmt.Errorf("could not put tagging file of completed multipart upload: %w", err)
+			h.logAndSendError(w, "could not put tagging file of completed multipart upload", reqInfo, err, additional...)
+			return
 		}
 	}

 	if len(uploadData.ACLHeaders) != 0 {
-		sessionTokenSetEACL, err := getSessionTokenSetEACL(r.Context())
-		if err != nil {
-			return nil, fmt.Errorf("couldn't get eacl token: %w", err)
-		}
 		key, err := h.bearerTokenIssuerKey(r.Context())
 		if err != nil {
-			return nil, fmt.Errorf("couldn't get gate key: %w", err)
+			h.logAndSendError(w, "couldn't get gate key", reqInfo, err)
+			return
 		}
 		acl, err := parseACLHeaders(r.Header, key)
 		if err != nil {
-			return nil, fmt.Errorf("could not parse acl: %w", err)
+			h.logAndSendError(w, "could not parse acl", reqInfo, err)
+			return
 		}

 		resInfo := &resourceInfo{
@ -481,10 +440,12 @@ func (h *handler) completeMultipartUpload(r *http.Request, c *layer.CompleteMult
 		}
 		astObject, err := aclToAst(acl, resInfo)
 		if err != nil {
-			return nil, fmt.Errorf("could not translate acl of completed multipart upload to ast: %w", err)
+			h.logAndSendError(w, "could not translate acl of completed multipart upload to ast", reqInfo, err, additional...)
+			return
 		}
 		if _, err = h.updateBucketACL(r, astObject, bktInfo, sessionTokenSetEACL); err != nil {
-			return nil, fmt.Errorf("could not update bucket acl while completing multipart upload: %w", err)
+			h.logAndSendError(w, "could not update bucket acl while completing multipart upload", reqInfo, err, additional...)
+			return
 		}
 	}

@ -498,7 +459,24 @@ func (h *handler) completeMultipartUpload(r *http.Request, c *layer.CompleteMult
 		h.log.Error("couldn't send notification: %w", zap.Error(err))
 	}

-	return objInfo, nil
+	bktSettings, err := h.obj.GetBucketSettings(r.Context(), bktInfo)
+	if err != nil {
+		h.logAndSendError(w, "could not get bucket settings", reqInfo, err)
+	}
+
+	response := CompleteMultipartUploadResponse{
+		Bucket: objInfo.Bucket,
+		ETag:   objInfo.HashSum,
+		Key:    objInfo.Name,
+	}
+
+	if bktSettings.VersioningEnabled() {
+		w.Header().Set(api.AmzVersionID, objInfo.VersionID())
+	}
+
+	if err = api.EncodeToResponse(w, response); err != nil {
+		h.logAndSendError(w, "something went wrong", reqInfo, err)
+	}
 }

 func (h *handler) ListMultipartUploadsHandler(w http.ResponseWriter, r *http.Request) {
@ -703,62 +681,3 @@ func encodeListPartsToResponse(info *layer.ListPartsInfo, params *layer.ListPart
 		Parts:            info.Parts,
 	}
 }
-
-// periodicXMLWriter creates go routine to write xml header and whitespaces
-// over time to avoid connection drop from the client. To work properly,
-// pass `http.ResponseWriter` with implemented `http.Flusher` interface.
-// Returns stop function which returns boolean if writer has been used
-// during goroutine execution. To disable writer, pass 0 duration value.
-func periodicXMLWriter(w io.Writer, dur time.Duration) (stop func() bool) {
-	if dur == 0 { // 0 duration disables periodic writer
-		return func() bool { return false }
-	}
-
-	whitespaceChar := []byte(" ")
-	closer := make(chan struct{})
-	done := make(chan struct{})
-	headerWritten := false
-
-	go func() {
-		defer close(done)
-
-		tick := time.NewTicker(dur)
-		defer tick.Stop()
-
-		for {
-			select {
-			case <-tick.C:
-				if !headerWritten {
-					_, err := w.Write([]byte(xml.Header))
-					headerWritten = err == nil
-				}
-				_, err := w.Write(whitespaceChar)
-				if err != nil {
-					return // is there anything we can do better than ignore error?
-				}
-				if buffered, ok := w.(http.Flusher); ok {
-					buffered.Flush()
-				}
-			case <-closer:
-				return
-			}
-		}
-	}()
-
-	stop = func() bool {
-		close(closer)
-		<-done // wait for goroutine to stop
-		return headerWritten
-	}
-
-	return stop
-}
-
-// periodicWriterErrorSender returns handler function to send error. If header is
-// alreay written by periodic XML writer, do not send HTTP and XML headers.
-func (h *handler) periodicWriterErrorSender(headerWritten bool) func(http.ResponseWriter, string, *api.ReqInfo, error, ...zap.Field) {
-	if headerWritten {
-		return h.logAndSendErrorNoHeader
-	}
-	return h.logAndSendError
-}
--- a/api/handler/multipart_upload_test.go
+++ b/api/handler/multipart_upload_test.go
@ -1,48 +0,0 @@
-package handler
-
-import (
-	"bytes"
-	"encoding/xml"
-	"testing"
-	"time"
-
-	"github.com/stretchr/testify/require"
-)
-
-func TestPeriodicWriter(t *testing.T) {
-	const dur = 100 * time.Millisecond
-	const whitespaces = 8
-	expected := []byte(xml.Header)
-	for i := 0; i < whitespaces; i++ {
-		expected = append(expected, []byte(" ")...)
-	}
-
-	t.Run("writes data", func(t *testing.T) {
-		buf := bytes.NewBuffer(nil)
-		stop := periodicXMLWriter(buf, dur)
-
-		// N number of whitespaces + half durations to guarantee at least N writes in buffer
-		time.Sleep(whitespaces*dur + dur/2)
-		require.True(t, stop())
-		require.Equal(t, expected, buf.Bytes())
-
-		t.Run("no additional data after stop", func(t *testing.T) {
-			time.Sleep(2 * dur)
-			require.Equal(t, expected, buf.Bytes())
-		})
-	})
-
-	t.Run("does not write data", func(t *testing.T) {
-		buf := bytes.NewBuffer(nil)
-		stop := periodicXMLWriter(buf, dur)
-		time.Sleep(dur / 2)
-		require.False(t, stop())
-		require.Empty(t, buf.Bytes())
-
-		t.Run("disabled", func(t *testing.T) {
-			stop = periodicXMLWriter(buf, 0)
-			require.False(t, stop())
-			require.Empty(t, buf.Bytes())
-		})
-	})
-}
--- a/api/handler/not_support.go
+++ b/api/handler/not_support.go
@ -3,8 +3,8 @@ package handler
 import (
 	"net/http"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/errors"
 )

 func (h *handler) DeleteBucketPolicyHandler(w http.ResponseWriter, r *http.Request) {
--- a/api/handler/notifications.go
+++ b/api/handler/notifications.go
@ -8,11 +8,11 @@ import (
 	"strings"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/bearer"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/errors"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/layer"
+	"github.com/TrueCloudLab/frostfs-sdk-go/bearer"
 	"github.com/google/uuid"
 )

--- a/api/handler/notifications_test.go
+++ b/api/handler/notifications_test.go
@ -3,8 +3,8 @@ package handler
 import (
 	"testing"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/errors"
 	"github.com/stretchr/testify/require"
 )

--- a/api/handler/object_list.go
+++ b/api/handler/object_list.go
@ -6,11 +6,11 @@ import (
 	"strconv"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer"
-	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/errors"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/layer"
+	oid "github.com/TrueCloudLab/frostfs-sdk-go/object/id"
 )

 // ListObjectsV1Handler handles objects listing requests for API version 1.
--- a/api/handler/object_list_test.go
+++ b/api/handler/object_list_test.go
@ -6,7 +6,7 @@ import (
 	"strconv"
 	"testing"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
 	"github.com/stretchr/testify/require"
 )

--- a/api/handler/put.go
+++ b/api/handler/put.go
@ -16,15 +16,15 @@ import (
 	"strings"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/auth"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer/encryption"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/creds/accessbox"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/eacl"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/session"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/auth"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/errors"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/layer"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/layer/encryption"
+	"github.com/TrueCloudLab/frostfs-s3-gw/creds/accessbox"
+	"github.com/TrueCloudLab/frostfs-sdk-go/eacl"
+	"github.com/TrueCloudLab/frostfs-sdk-go/session"
 	"go.uber.org/zap"
 )

@ -720,10 +720,7 @@ func (h *handler) CreateBucketHandler(w http.ResponseWriter, r *http.Request) {
 		return
 	}

-	if err = h.setPolicy(p, createParams.LocationConstraint, policies); err != nil {
-		h.logAndSendError(w, "couldn't set placement policy", reqInfo, err)
-		return
-	}
+	h.setPolicy(p, createParams.LocationConstraint, policies)

 	p.ObjectLockEnabled = isLockEnabled(r.Header)

@ -751,27 +748,25 @@ func (h *handler) CreateBucketHandler(w http.ResponseWriter, r *http.Request) {
 	api.WriteSuccessResponseHeadersOnly(w)
 }

-func (h handler) setPolicy(prm *layer.CreateBucketParams, locationConstraint string, userPolicies []*accessbox.ContainerPolicy) error {
+func (h handler) setPolicy(prm *layer.CreateBucketParams, locationConstraint string, userPolicies []*accessbox.ContainerPolicy) {
 	prm.Policy = h.cfg.Policy.Default()
-	prm.LocationConstraint = locationConstraint

 	if locationConstraint == "" {
-		return nil
+		return
+	}
+
+	if policy, ok := h.cfg.Policy.Get(locationConstraint); ok {
+		prm.Policy = policy
+		prm.LocationConstraint = locationConstraint
 	}

 	for _, placementPolicy := range userPolicies {
 		if placementPolicy.LocationConstraint == locationConstraint {
 			prm.Policy = placementPolicy.Policy
-			return nil
+			prm.LocationConstraint = locationConstraint
+			return
 		}
 	}
-
-	if policy, ok := h.cfg.Policy.Get(locationConstraint); ok {
-		prm.Policy = policy
-		return nil
-	}
-
-	return errors.GetAPIError(errors.ErrInvalidLocationConstraint)
 }

 func isLockEnabled(header http.Header) bool {
--- a/api/handler/put_test.go
+++ b/api/handler/put_test.go
@ -8,8 +8,8 @@ import (
 	"testing"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/layer"
 	"github.com/stretchr/testify/require"
 )

--- a/api/handler/response.go
+++ b/api/handler/response.go
@ -71,19 +71,48 @@ type Grant struct {
 // Grantee is info about access rights of some actor.
 type Grantee struct {
 	XMLName      xml.Name `xml:"Grantee"`
-	XMLNS        string      `xml:"xmlns:xsi,attr"`
+	XMLNS        xml.Attr `xml:"xsi,attr"`
 	ID           string   `xml:"ID,omitempty"`
 	DisplayName  string   `xml:"DisplayName,omitempty"`
 	EmailAddress string   `xml:"EmailAddress,omitempty"`
 	URI          string   `xml:"URI,omitempty"`
-	Type         GranteeType `xml:"xsi:type,attr"`
+	Type         xml.Attr `xml:"type,attr"`
 }

-// NewGrantee creates new grantee using workaround
-// https://github.com/golang/go/issues/9519#issuecomment-252196382
-func NewGrantee(t GranteeType) *Grantee {
+func (g Grantee) matchType(t string) bool {
+	return g.Type.Value == t
+}
+
+func (g Grantee) TypeString() string {
+	return g.Type.Value
+}
+
+func formGranteeType(str string) xml.Attr {
+	return xml.Attr{
+		Name: xml.Name{
+			Space: "xsi",
+			Local: "type",
+		},
+		Value: str,
+	}
+}
+
+const granteeXMLNS = "http://www.w3.org/2001/XMLSchema-instance"
+
+// NewGrantee creates new grantee.
+func NewGrantee(t xml.Attr) *Grantee {
 	return &Grantee{
-		XMLNS: "http://www.w3.org/2001/XMLSchema-instance",
+		XMLName: xml.Name{
+			Local: "Grantee",
+		},
+
+		XMLNS: xml.Attr{
+			Name: xml.Name{
+				Space: "xmlns",
+				Local: "xsi",
+			},
+			Value: granteeXMLNS,
+		},
 		Type: t,
 	}
 }
--- a/api/handler/tagging.go
+++ b/api/handler/tagging.go
@ -8,10 +8,10 @@ import (
 	"strings"
 	"unicode"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/errors"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/layer"
 	"go.uber.org/zap"
 )

--- a/api/handler/unimplemented.go
+++ b/api/handler/unimplemented.go
@ -3,8 +3,8 @@ package handler
 import (
 	"net/http"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/errors"
 )

 func (h *handler) SelectObjectContentHandler(w http.ResponseWriter, r *http.Request) {
--- a/api/handler/util.go
+++ b/api/handler/util.go
@ -7,11 +7,11 @@ import (
 	"strconv"
 	"strings"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/session"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/errors"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/layer"
+	"github.com/TrueCloudLab/frostfs-sdk-go/session"
 	"go.uber.org/zap"
 )

@ -29,19 +29,6 @@ func (h *handler) logAndSendError(w http.ResponseWriter, logText string, reqInfo
 	h.log.Error("call method", fields...)
 }

-func (h *handler) logAndSendErrorNoHeader(w http.ResponseWriter, logText string, reqInfo *api.ReqInfo, err error, additional ...zap.Field) {
-	api.WriteErrorResponseNoHeader(w, reqInfo, transformToS3Error(err))
-	fields := []zap.Field{
-		zap.String("request_id", reqInfo.RequestID),
-		zap.String("method", reqInfo.API),
-		zap.String("bucket", reqInfo.BucketName),
-		zap.String("object", reqInfo.ObjectName),
-		zap.String("description", logText),
-		zap.Error(err)}
-	fields = append(fields, additional...)
-	h.log.Error("call method", fields...)
-}
-
 func transformToS3Error(err error) error {
 	if _, ok := err.(errors.Error); ok {
 		return err
@ -55,10 +42,6 @@ func transformToS3Error(err error) error {
 	return errors.GetAPIError(errors.ErrInternalError)
 }

-func (h *handler) ResolveBucket(ctx context.Context, bucket string) (*data.BucketInfo, error) {
-	return h.obj.GetBucketInfo(ctx, bucket)
-}
-
 func (h *handler) getBucketAndCheckOwner(r *http.Request, bucket string, header ...string) (*data.BucketInfo, error) {
 	bktInfo, err := h.obj.GetBucketInfo(r.Context(), bucket)
 	if err != nil {
--- a/api/handler/versioning.go
+++ b/api/handler/versioning.go
@ -4,10 +4,10 @@ import (
 	"encoding/xml"
 	"net/http"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/errors"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/layer"
 )

 func (h *handler) PutBucketVersioningHandler(w http.ResponseWriter, r *http.Request) {
--- a/api/headers.go
+++ b/api/headers.go
@ -63,8 +63,6 @@ const (
 	AmzServerSideEncryptionCustomerKeyMD5    = "x-amz-server-side-encryption-customer-key-MD5"

 	ContainerID = "X-Container-Id"
-	ContainerName = "X-Container-Name"
-	ContainerZone = "X-Container-Zone"

 	AccessControlAllowOrigin      = "Access-Control-Allow-Origin"
 	AccessControlAllowMethods     = "Access-Control-Allow-Methods"
--- a/api/layer/cache.go
+++ b/api/layer/cache.go
@ -1,11 +1,11 @@
 package layer

 import (
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/cache"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
-	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/cache"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	cid "github.com/TrueCloudLab/frostfs-sdk-go/container/id"
+	oid "github.com/TrueCloudLab/frostfs-sdk-go/object/id"
+	"github.com/TrueCloudLab/frostfs-sdk-go/user"
 	"go.uber.org/zap"
 )

--- a/api/layer/compound.go
+++ b/api/layer/compound.go
@ -4,8 +4,8 @@ import (
 	"context"
 	errorsStd "errors"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/errors"
 )

 func (n *layer) GetObjectTaggingAndLock(ctx context.Context, objVersion *ObjectVersion, nodeVersion *data.NodeVersion) (map[string]string, *data.LockInfo, error) {
--- a/api/layer/container.go
+++ b/api/layer/container.go
@ -5,15 +5,14 @@ import (
 	"fmt"
 	"strconv"

-	v2container "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/container"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container"
-	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/eacl"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/session"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/errors"
+	"github.com/TrueCloudLab/frostfs-sdk-go/client"
+	"github.com/TrueCloudLab/frostfs-sdk-go/container"
+	cid "github.com/TrueCloudLab/frostfs-sdk-go/container/id"
+	"github.com/TrueCloudLab/frostfs-sdk-go/eacl"
+	"github.com/TrueCloudLab/frostfs-sdk-go/session"
 	"go.uber.org/zap"
 )

@ -57,7 +56,6 @@ func (n *layer) containerInfo(ctx context.Context, idCnr cid.ID) (*data.BucketIn
 	info.Owner = cnr.Owner()
 	if domain := container.ReadDomain(cnr); domain.Name() != "" {
 		info.Name = domain.Name()
-		info.Zone = domain.Zone()
 	}
 	info.Created = container.CreatedAt(cnr)
 	info.LocationConstraint = cnr.Attribute(attributeLocationConstraint)
@ -116,7 +114,6 @@ func (n *layer) createContainer(ctx context.Context, p *CreateBucketParams) (*da
 	}
 	bktInfo := &data.BucketInfo{
 		Name:               p.Name,
-		Zone:               v2container.SysAttributeZoneDefault,
 		Owner:              ownerID,
 		Created:            TimeNow(ctx),
 		LocationConstraint: p.LocationConstraint,
--- a/api/layer/cors.go
+++ b/api/layer/cors.go
@ -8,8 +8,8 @@ import (
 	"fmt"
 	"io"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/errors"
 	"go.uber.org/zap"
 )

@ -39,7 +39,7 @@ func (n *layer) PutBucketCORS(ctx context.Context, p *PutCORSParams) error {
 	prm := PrmObjectCreate{
 		Container:    p.BktInfo.CID,
 		Creator:      p.BktInfo.Owner,
-		Payload:      &buf,
+		Payload:      p.Reader,
 		Filepath:     p.BktInfo.CORSObjectName(),
 		CreationTime: TimeNow(ctx),
 		CopiesNumber: p.CopiesNumber,
--- a/api/layer/frostfs.go
+++ b/api/layer/frostfs.go
@ -7,16 +7,16 @@ import (
 	"io"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/bearer"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/acl"
-	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/eacl"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/netmap"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
-	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/session"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
+	"github.com/TrueCloudLab/frostfs-sdk-go/bearer"
+	"github.com/TrueCloudLab/frostfs-sdk-go/container"
+	"github.com/TrueCloudLab/frostfs-sdk-go/container/acl"
+	cid "github.com/TrueCloudLab/frostfs-sdk-go/container/id"
+	"github.com/TrueCloudLab/frostfs-sdk-go/eacl"
+	"github.com/TrueCloudLab/frostfs-sdk-go/netmap"
+	"github.com/TrueCloudLab/frostfs-sdk-go/object"
+	oid "github.com/TrueCloudLab/frostfs-sdk-go/object/id"
+	"github.com/TrueCloudLab/frostfs-sdk-go/session"
+	"github.com/TrueCloudLab/frostfs-sdk-go/user"
 )

 // PrmContainerCreate groups parameters of FrostFS.CreateContainer operation.
--- a/api/layer/layer.go
+++ b/api/layer/layer.go
@ -11,18 +11,18 @@ import (
 	"strings"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer/encryption"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/creds/accessbox"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/bearer"
-	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/eacl"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/netmap"
-	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/session"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/errors"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/layer/encryption"
+	"github.com/TrueCloudLab/frostfs-s3-gw/creds/accessbox"
+	"github.com/TrueCloudLab/frostfs-sdk-go/bearer"
+	cid "github.com/TrueCloudLab/frostfs-sdk-go/container/id"
+	"github.com/TrueCloudLab/frostfs-sdk-go/eacl"
+	"github.com/TrueCloudLab/frostfs-sdk-go/netmap"
+	oid "github.com/TrueCloudLab/frostfs-sdk-go/object/id"
+	"github.com/TrueCloudLab/frostfs-sdk-go/session"
+	"github.com/TrueCloudLab/frostfs-sdk-go/user"
 	"github.com/nats-io/nats.go"
 	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
 	"go.uber.org/zap"
--- a/api/layer/locking_test.go
+++ b/api/layer/locking_test.go
@ -4,8 +4,7 @@ import (
 	"testing"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/object"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
 	"github.com/stretchr/testify/require"
 )

@ -44,10 +43,10 @@ func TestObjectLockAttributes(t *testing.T) {

 	expEpoch := false
 	for _, attr := range lockObj.Attributes() {
-		if attr.Key() == object.SysAttributeExpEpoch {
+		if attr.Key() == AttributeExpirationEpoch {
 			expEpoch = true
 		}
 	}

-	require.Truef(t, expEpoch, "system header __SYSTEM__EXPIRATION_EPOCH presence")
+	require.Truef(t, expEpoch, "system header __NEOFS__EXPIRATION_EPOCH presence")
 }
--- a/api/layer/multipart_upload.go
+++ b/api/layer/multipart_upload.go
@ -11,12 +11,12 @@ import (
 	"strings"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer/encryption"
-	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/errors"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/layer/encryption"
+	oid "github.com/TrueCloudLab/frostfs-sdk-go/object/id"
+	"github.com/TrueCloudLab/frostfs-sdk-go/user"
 	"github.com/minio/sio"
 	"go.uber.org/zap"
 )
--- a/api/layer/neofs_mock.go
+++ b/api/layer/neofs_mock.go
@ -10,18 +10,18 @@ import (
 	"io"
 	"time"

-	objectv2 "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/object"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/creds/accessbox"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/bearer"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/checksum"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container"
-	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/eacl"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
-	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/session"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
+	objectv2 "github.com/TrueCloudLab/frostfs-api-go/v2/object"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/creds/accessbox"
+	"github.com/TrueCloudLab/frostfs-sdk-go/bearer"
+	"github.com/TrueCloudLab/frostfs-sdk-go/checksum"
+	"github.com/TrueCloudLab/frostfs-sdk-go/container"
+	cid "github.com/TrueCloudLab/frostfs-sdk-go/container/id"
+	"github.com/TrueCloudLab/frostfs-sdk-go/eacl"
+	"github.com/TrueCloudLab/frostfs-sdk-go/object"
+	oid "github.com/TrueCloudLab/frostfs-sdk-go/object/id"
+	"github.com/TrueCloudLab/frostfs-sdk-go/session"
+	"github.com/TrueCloudLab/frostfs-sdk-go/user"
 )

 type TestFrostFS struct {
@ -144,7 +144,7 @@ func (t *TestFrostFS) ReadObject(ctx context.Context, prm PrmObjectRead) (*Objec

 	if obj, ok := t.objects[sAddr]; ok {
 		owner := getOwner(ctx)
-		if !obj.OwnerID().Equals(owner) && !t.isPublicRead(prm.Container) {
+		if !obj.OwnerID().Equals(owner) {
 			return nil, ErrAccessDenied
 		}

@ -282,25 +282,6 @@ func (t *TestFrostFS) ContainerEACL(_ context.Context, cnrID cid.ID) (*eacl.Tabl
 	return table, nil
 }

-func (t *TestFrostFS) isPublicRead(cnrID cid.ID) bool {
-	table, ok := t.eaclTables[cnrID.EncodeToString()]
-	if !ok {
-		return false
-	}
-
-	for _, rec := range table.Records() {
-		if rec.Operation() == eacl.OperationGet && len(rec.Filters()) == 0 {
-			for _, trgt := range rec.Targets() {
-				if trgt.Role() == eacl.RoleOthers {
-					return rec.Action() == eacl.ActionAllow
-				}
-			}
-		}
-	}
-
-	return false
-}
-
 func getOwner(ctx context.Context) user.ID {
 	if bd, ok := ctx.Value(api.BoxData).(*accessbox.Box); ok && bd != nil && bd.Gate != nil && bd.Gate.BearerToken != nil {
 		return bearer.ResolveIssuer(*bd.Gate.BearerToken)
--- a/api/layer/notifications.go
+++ b/api/layer/notifications.go
@ -7,8 +7,8 @@ import (
 	errorsStd "errors"
 	"fmt"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
 	"go.uber.org/zap"
 )

--- a/api/layer/object.go
+++ b/api/layer/object.go
@ -14,14 +14,14 @@ import (
 	"strings"
 	"sync"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/cache"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	apiErrors "git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client"
-	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
-	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/cache"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	apiErrors "github.com/TrueCloudLab/frostfs-s3-gw/api/errors"
+	"github.com/TrueCloudLab/frostfs-sdk-go/client"
+	cid "github.com/TrueCloudLab/frostfs-sdk-go/container/id"
+	"github.com/TrueCloudLab/frostfs-sdk-go/object"
+	oid "github.com/TrueCloudLab/frostfs-sdk-go/object/id"
 	"github.com/minio/sio"
 	"github.com/panjf2000/ants/v2"
 	"go.uber.org/zap"
--- a/api/layer/system_object.go
+++ b/api/layer/system_object.go
@ -9,14 +9,14 @@ import (
 	"strconv"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/object"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
-	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/errors"
+	oid "github.com/TrueCloudLab/frostfs-sdk-go/object/id"
 )

 const (
 	AttributeComplianceMode  = ".s3-compliance-mode"
+	AttributeExpirationEpoch = "__NEOFS__EXPIRATION_EPOCH"
 )

 type PutLockInfoParams struct {
@ -238,7 +238,7 @@ func (n *layer) attributesFromLock(ctx context.Context, lock *data.ObjectLock) (
 	}

 	if lock.LegalHold != nil && lock.LegalHold.Enabled {
-		// todo: (@KirillovDenis) reconsider this when FrostFS will support Legal Hold https://git.frostfs.info/TrueCloudLab/frostfs-contract/issues/2
+		// todo: (@KirillovDenis) reconsider this when FrostFS will support Legal Hold https://github.com/TrueCloudLab/frostfs-contract/issues/2
 		// Currently lock object must have an expiration epoch.
 		// Besides we need to override retention expiration epoch since legal hold cannot be deleted yet.
 		expEpoch = math.MaxUint64
@ -246,7 +246,7 @@ func (n *layer) attributesFromLock(ctx context.Context, lock *data.ObjectLock) (

 	if expEpoch != 0 {
 		result = append(result, [2]string{
-			object.SysAttributeExpEpoch, strconv.FormatUint(expEpoch, 10),
+			AttributeExpirationEpoch, strconv.FormatUint(expEpoch, 10),
 		})
 	}

--- a/api/layer/tagging.go
+++ b/api/layer/tagging.go
@ -4,12 +4,12 @@ import (
 	"context"
 	errorsStd "errors"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
-	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
-	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/errors"
+	cid "github.com/TrueCloudLab/frostfs-sdk-go/container/id"
+	oid "github.com/TrueCloudLab/frostfs-sdk-go/object/id"
+	"github.com/TrueCloudLab/frostfs-sdk-go/user"
 	"go.uber.org/zap"
 )

--- a/api/layer/tree_mock.go
+++ b/api/layer/tree_mock.go
@ -6,8 +6,8 @@ import (
 	"sort"
 	"strings"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	oid "github.com/TrueCloudLab/frostfs-sdk-go/object/id"
 )

 type TreeServiceMock struct {
@ -109,32 +109,11 @@ func (t *TreeServiceMock) PutNotificationConfigurationNode(ctx context.Context,
 }

 func (t *TreeServiceMock) GetBucketCORS(ctx context.Context, bktInfo *data.BucketInfo) (oid.ID, error) {
-	systemMap, ok := t.system[bktInfo.CID.EncodeToString()]
-	if !ok {
-		return oid.ID{}, nil
-	}
-
-	node, ok := systemMap["cors"]
-	if !ok {
-		return oid.ID{}, nil
-	}
-
-	return node.OID, nil
+	panic("implement me")
 }

 func (t *TreeServiceMock) PutBucketCORS(ctx context.Context, bktInfo *data.BucketInfo, objID oid.ID) (oid.ID, error) {
-	systemMap, ok := t.system[bktInfo.CID.EncodeToString()]
-	if !ok {
-		systemMap = make(map[string]*data.BaseNodeVersion)
-	}
-
-	systemMap["cors"] = &data.BaseNodeVersion{
-		OID: objID,
-	}
-
-	t.system[bktInfo.CID.EncodeToString()] = systemMap
-
-	return oid.ID{}, ErrNoNodeToRemove
+	panic("implement me")
 }

 func (t *TreeServiceMock) DeleteBucketCORS(ctx context.Context, bktInfo *data.BucketInfo) (oid.ID, error) {
--- a/api/layer/tree_service.go
+++ b/api/layer/tree_service.go
@ -4,8 +4,8 @@ import (
 	"context"
 	"errors"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	oid "github.com/TrueCloudLab/frostfs-sdk-go/object/id"
 )

 // TreeService provide interface to interact with tree service using s3 data models.
--- a/api/layer/util.go
+++ b/api/layer/util.go
@ -9,11 +9,11 @@ import (
 	"strings"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer/encryption"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/creds/accessbox"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/layer/encryption"
+	"github.com/TrueCloudLab/frostfs-s3-gw/creds/accessbox"
+	"github.com/TrueCloudLab/frostfs-sdk-go/object"
 )

 type (
--- a/api/layer/util_test.go
+++ b/api/layer/util_test.go
@ -6,11 +6,11 @@ import (
 	"testing"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/checksum"
-	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
-	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-sdk-go/checksum"
+	cid "github.com/TrueCloudLab/frostfs-sdk-go/container/id"
+	oid "github.com/TrueCloudLab/frostfs-sdk-go/object/id"
+	"github.com/TrueCloudLab/frostfs-sdk-go/user"
 	"github.com/stretchr/testify/require"
 )

--- a/api/layer/versioning.go
+++ b/api/layer/versioning.go
@ -4,7 +4,7 @@ import (
 	"context"
 	"sort"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
 )

 func (n *layer) ListObjectVersions(ctx context.Context, p *ListObjectVersionsParams) (*ListObjectVersionsInfo, error) {
--- a/api/layer/versioning_test.go
+++ b/api/layer/versioning_test.go
@ -5,13 +5,13 @@ import (
 	"context"
 	"testing"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/creds/accessbox"
-	bearertest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/bearer/test"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object"
-	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/creds/accessbox"
+	bearertest "github.com/TrueCloudLab/frostfs-sdk-go/bearer/test"
+	"github.com/TrueCloudLab/frostfs-sdk-go/object"
+	oid "github.com/TrueCloudLab/frostfs-sdk-go/object/id"
+	"github.com/TrueCloudLab/frostfs-sdk-go/user"
 	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
 	"github.com/stretchr/testify/require"
 	"go.uber.org/zap"
--- a/api/max_clients.go
+++ b/api/max_clients.go
@ -4,7 +4,7 @@ import (
 	"net/http"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/errors"
 )

 type (
--- a/api/metrics/api.go
+++ b/api/metrics/api.go
@ -1,7 +1,6 @@
-package api
+package metrics

 import (
-	"context"
 	"io"
 	"net/http"
 	"strings"
@ -9,68 +8,9 @@ import (
 	"sync/atomic"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/creds/accessbox"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/bearer"
 	"github.com/prometheus/client_golang/prometheus"
 )

-type RequestType int
-
-const (
-	UNKNOWNRequest RequestType = iota
-	HEADRequest    RequestType = iota
-	PUTRequest     RequestType = iota
-	LISTRequest    RequestType = iota
-	GETRequest     RequestType = iota
-	DELETERequest  RequestType = iota
-)
-
-func (t RequestType) String() string {
-	switch t {
-	case 1:
-		return "HEAD"
-	case 2:
-		return "PUT"
-	case 3:
-		return "LIST"
-	case 4:
-		return "GET"
-	case 5:
-		return "DELETE"
-	default:
-		return "Unknown"
-	}
-}
-
-func RequestTypeFromAPI(api string) RequestType {
-	switch api {
-	case "Options", "HeadObject", "HeadBucket":
-		return HEADRequest
-	case "CreateMultipartUpload", "UploadPartCopy", "UploadPart", "CompleteMultipartUpload",
-		"PutObjectACL", "PutObjectTagging", "CopyObject", "PutObjectRetention", "PutObjectLegalHold",
-		"PutObject", "PutBucketCors", "PutBucketACL", "PutBucketLifecycle", "PutBucketEncryption",
-		"PutBucketPolicy", "PutBucketObjectLockConfig", "PutBucketTagging", "PutBucketVersioning",
-		"PutBucketNotification", "CreateBucket", "PostObject":
-		return PUTRequest
-	case "ListObjectParts", "ListMultipartUploads", "ListObjectsV2M", "ListObjectsV2", "ListBucketVersions",
-		"ListObjectsV1", "ListBuckets":
-		return LISTRequest
-	case "GetObjectACL", "GetObjectTagging", "SelectObjectContent", "GetObjectRetention", "getobjectlegalhold",
-		"GetObjectAttributes", "GetObject", "GetBucketLocation", "GetBucketPolicy",
-		"GetBucketLifecycle", "GetBucketEncryption", "GetBucketCors", "GetBucketACL",
-		"GetBucketWebsite", "GetBucketAccelerate", "GetBucketRequestPayment", "GetBucketLogging",
-		"GetBucketReplication", "GetBucketTagging", "GetBucketObjectLockConfig",
-		"GetBucketVersioning", "GetBucketNotification", "ListenBucketNotification":
-		return GETRequest
-	case "AbortMultipartUpload", "DeleteObjectTagging", "DeleteObject", "DeleteBucketCors",
-		"DeleteBucketWebsite", "DeleteBucketTagging", "DeleteMultipleObjects", "DeleteBucketPolicy",
-		"DeleteBucketLifecycle", "DeleteBucketEncryption", "DeleteBucket":
-		return DELETERequest
-	default:
-		return UNKNOWNRequest
-	}
-}
-
 type (
 	// HTTPAPIStats holds statistics information about
 	// the API given in the requests.
@ -79,10 +19,6 @@ type (
 		sync.RWMutex
 	}

-	UsersStat interface {
-		Update(user, bucket, cnrID string, reqType RequestType, in, out uint64)
-	}
-
 	// HTTPStats holds statistics information about
 	// HTTP requests made by all clients.
 	HTTPStats struct {
@ -167,16 +103,11 @@ func collectHTTPMetrics(ch chan<- prometheus.Metric) {
 	}
 }

-// CIDResolveFunc is a func to resolve CID in Stats handler.
-type CIDResolveFunc func(ctx context.Context, reqInfo *ReqInfo) (cnrID string)
-
-// Stats is a handler that update metrics.
-func Stats(f http.HandlerFunc, resolveCID CIDResolveFunc, usersStat UsersStat) http.HandlerFunc {
+// APIStats wraps http handler for api with basic statistics collection.
+func APIStats(api string, f http.HandlerFunc) http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
-		reqInfo := GetReqInfo(r.Context())
-
-		httpStatsMetric.currentS3Requests.Inc(reqInfo.API)
-		defer httpStatsMetric.currentS3Requests.Dec(reqInfo.API)
+		httpStatsMetric.currentS3Requests.Inc(api)
+		defer httpStatsMetric.currentS3Requests.Dec(api)

 		in := &readCounter{ReadCloser: r.Body}
 		out := &writeCounter{ResponseWriter: w}
@ -188,45 +119,20 @@ func Stats(f http.HandlerFunc, resolveCID CIDResolveFunc, usersStat UsersStat) h
 			startTime:      time.Now(),
 		}

-		f(statsWriter, r)
+		f.ServeHTTP(statsWriter, r)

 		// Time duration in secs since the call started.
 		// We don't need to do nanosecond precision here
-		// simply for the fact that it is not human-readable.
+		// simply for the fact that it is not human readable.
 		durationSecs := time.Since(statsWriter.startTime).Seconds()

-		user := resolveUser(r.Context())
-		cnrID := resolveCID(r.Context(), reqInfo)
-		usersStat.Update(user, reqInfo.BucketName, cnrID, RequestTypeFromAPI(reqInfo.API), in.countBytes, out.countBytes)
-
-		code := statsWriter.statusCode
-		// A successful request has a 2xx response code
-		successReq := code >= http.StatusOK && code < http.StatusMultipleChoices
-		if !strings.HasSuffix(r.URL.Path, systemPath) {
-			httpStatsMetric.totalS3Requests.Inc(reqInfo.API)
-			if !successReq && code != 0 {
-				httpStatsMetric.totalS3Errors.Inc(reqInfo.API)
-			}
-		}
-
-		if r.Method == http.MethodGet {
-			// Increment the prometheus http request response histogram with appropriate label
-			httpRequestsDuration.With(prometheus.Labels{"api": reqInfo.API}).Observe(durationSecs)
-		}
+		httpStatsMetric.updateStats(api, statsWriter, r, durationSecs)

 		atomic.AddUint64(&httpStatsMetric.totalInputBytes, in.countBytes)
 		atomic.AddUint64(&httpStatsMetric.totalOutputBytes, out.countBytes)
 	}
 }

-func resolveUser(ctx context.Context) string {
-	user := "anon"
-	if bd, ok := ctx.Value(BoxData).(*accessbox.Box); ok && bd != nil && bd.Gate != nil && bd.Gate.BearerToken != nil {
-		user = bearer.ResolveIssuer(*bd.Gate.BearerToken).String()
-	}
-	return user
-}
-
 // Inc increments the api stats counter.
 func (stats *HTTPAPIStats) Inc(api string) {
 	if stats == nil {
@ -271,6 +177,30 @@ func (st *HTTPStats) getOutputBytes() uint64 {
 	return atomic.LoadUint64(&st.totalOutputBytes)
 }

+// Update statistics from http request and response data.
+func (st *HTTPStats) updateStats(api string, w http.ResponseWriter, r *http.Request, durationSecs float64) {
+	var code int
+
+	if res, ok := w.(*responseWrapper); ok {
+		code = res.statusCode
+	}
+
+	// A successful request has a 2xx response code
+	successReq := code >= http.StatusOK && code < http.StatusMultipleChoices
+
+	if !strings.HasSuffix(r.URL.Path, systemPath) {
+		st.totalS3Requests.Inc(api)
+		if !successReq && code != 0 {
+			st.totalS3Errors.Inc(api)
+		}
+	}
+
+	if r.Method == http.MethodGet {
+		// Increment the prometheus http request response histogram with appropriate label
+		httpRequestsDuration.With(prometheus.Labels{"api": api}).Observe(durationSecs)
+	}
+}
+
 // WriteHeader -- writes http status code.
 func (w *responseWrapper) WriteHeader(code int) {
 	w.Do(func() {
@ -286,12 +216,6 @@ func (w *responseWrapper) Flush() {
 	}
 }

-func (w *writeCounter) Flush() {
-	if f, ok := w.ResponseWriter.(http.Flusher); ok {
-		f.Flush()
-	}
-}
-
 func (w *writeCounter) Write(p []byte) (int, error) {
 	n, err := w.ResponseWriter.Write(p)
 	atomic.AddUint64(&w.countBytes, uint64(n))
--- a/api/metrics/collector.go
+++ b/api/metrics/collector.go
@ -1,7 +1,7 @@
-package api
+package metrics

 import (
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/internal/version"
+	"github.com/TrueCloudLab/frostfs-s3-gw/internal/version"
 	"github.com/prometheus/client_golang/prometheus"
 )

--- a/api/notifications/controller.go
+++ b/api/notifications/controller.go
@ -7,8 +7,8 @@ import (
 	"sync"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/handler"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/handler"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/layer"
 	"github.com/nats-io/nats.go"
 	"go.uber.org/zap"
 )
--- a/api/resolver/resolver.go
+++ b/api/resolver/resolver.go
@ -6,9 +6,9 @@ import (
 	"fmt"
 	"sync"

-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container"
-	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/ns"
+	"github.com/TrueCloudLab/frostfs-sdk-go/container"
+	cid "github.com/TrueCloudLab/frostfs-sdk-go/container/id"
+	"github.com/TrueCloudLab/frostfs-sdk-go/ns"
 )

 const (
--- a/api/response.go
+++ b/api/response.go
@ -7,8 +7,8 @@ import (
 	"net/http"
 	"strconv"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/internal/version"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/errors"
+	"github.com/TrueCloudLab/frostfs-s3-gw/internal/version"
 	"github.com/google/uuid"
 )

@ -133,13 +133,6 @@ func WriteErrorResponse(w http.ResponseWriter, reqInfo *ReqInfo, err error) int
 	return code
 }

-// WriteErrorResponseNoHeader writes XML encoded error to the response body.
-func WriteErrorResponseNoHeader(w http.ResponseWriter, reqInfo *ReqInfo, err error) {
-	errorResponse := getAPIErrorResponse(reqInfo, err)
-	encodedErrorResponse := EncodeResponse(errorResponse)
-	WriteResponseBody(w, encodedErrorResponse)
-}
-
 // If none of the http routes match respond with appropriate errors.
 func errorResponseHandler(w http.ResponseWriter, r *http.Request) {
 	desc := fmt.Sprintf("Unknown API request at %s", r.URL.Path)
@ -179,11 +172,6 @@ func WriteResponse(w http.ResponseWriter, statusCode int, response []byte, mType
 		return
 	}

-	WriteResponseBody(w, response)
-}
-
-// WriteResponseBody writes response into w.
-func WriteResponseBody(w http.ResponseWriter, response []byte) {
 	_, _ = w.Write(response)
 	if flusher, ok := w.(http.Flusher); ok {
 		flusher.Flush()
@ -200,30 +188,13 @@ func EncodeResponse(response interface{}) []byte {
 	return bytesBuffer.Bytes()
 }

-// EncodeResponseNoHeader encodes response without setting xml.Header.
-// Should be used with periodicXMLWriter which sends xml.Header to the client
-// with whitespaces to keep connection alive.
-func EncodeResponseNoHeader(response interface{}) []byte {
-	var bytesBuffer bytes.Buffer
-	_ = xml.NewEncoder(&bytesBuffer).Encode(response)
-	return bytesBuffer.Bytes()
-}
-
 // EncodeToResponse encodes the response into ResponseWriter.
 func EncodeToResponse(w http.ResponseWriter, response interface{}) error {
 	w.WriteHeader(http.StatusOK)

 	if _, err := w.Write(xmlHeader); err != nil {
 		return fmt.Errorf("write headers: %w", err)
-	}
-
-	return EncodeToResponseNoHeader(w, response)
-}
-
-// EncodeToResponseNoHeader encodes the response into ResponseWriter without
-// header status.
-func EncodeToResponseNoHeader(w http.ResponseWriter, response interface{}) error {
-	if err := xml.NewEncoder(w).Encode(response); err != nil {
+	} else if err = xml.NewEncoder(w).Encode(response); err != nil {
 		return fmt.Errorf("encode xml response: %w", err)
 	}

--- a/api/router.go
+++ b/api/router.go
@ -5,8 +5,8 @@ import (
 	"net/http"
 	"sync"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/auth"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/data"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/auth"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/metrics"
 	"github.com/google/uuid"
 	"github.com/gorilla/mux"
 	"go.uber.org/zap"
@ -82,8 +82,6 @@ type (
 		AbortMultipartUploadHandler(http.ResponseWriter, *http.Request)
 		ListPartsHandler(w http.ResponseWriter, r *http.Request)
 		ListMultipartUploadsHandler(http.ResponseWriter, *http.Request)
-
-		ResolveBucket(ctx context.Context, bucket string) (*data.BucketInfo, error)
 	}

 	// mimeType represents various MIME types used in API responses.
@ -108,7 +106,7 @@ const (
 	MimeXML mimeType = "application/xml"
 )

-var _ = logSuccessResponse
+var _ = logErrorResponse

 func (lrw *logResponseWriter) WriteHeader(code int) {
 	lrw.Do(func() {
@ -117,12 +115,6 @@ func (lrw *logResponseWriter) WriteHeader(code int) {
 	})
 }

-func (lrw *logResponseWriter) Flush() {
-	if f, ok := lrw.ResponseWriter.(http.Flusher); ok {
-		f.Flush()
-	}
-}
-
 func setRequestID(h http.Handler) http.Handler {
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		// generate random UUIDv4
@ -153,37 +145,7 @@ func appendCORS(handler Handler) mux.MiddlewareFunc {
 	}
 }

-// BucketResolveFunc is a func to resolve bucket info by name.
-type BucketResolveFunc func(ctx context.Context, bucket string) (*data.BucketInfo, error)
-
-// metricsMiddleware wraps http handler for api with basic statistics collection.
-func metricsMiddleware(log *zap.Logger, resolveBucket BucketResolveFunc, usersStat UsersStat) mux.MiddlewareFunc {
-	return func(h http.Handler) http.Handler {
-		return Stats(h.ServeHTTP, resolveCID(log, resolveBucket), usersStat)
-	}
-}
-
-// resolveCID forms CIDResolveFunc using BucketResolveFunc.
-func resolveCID(log *zap.Logger, resolveBucket BucketResolveFunc) CIDResolveFunc {
-	return func(ctx context.Context, reqInfo *ReqInfo) (cnrID string) {
-		if reqInfo.BucketName == "" || reqInfo.API == "CreateBucket" || reqInfo.API == "" {
-			return ""
-		}
-
-		bktInfo, err := resolveBucket(ctx, reqInfo.BucketName)
-		if err != nil {
-			log.Debug("failed to resolve CID",
-				zap.String("request_id", reqInfo.RequestID), zap.String("method", reqInfo.API),
-				zap.String("bucket", reqInfo.BucketName), zap.String("object", reqInfo.ObjectName),
-				zap.Error(err))
-			return ""
-		}
-
-		return bktInfo.CID.EncodeToString()
-	}
-}
-
-func logSuccessResponse(l *zap.Logger) mux.MiddlewareFunc {
+func logErrorResponse(l *zap.Logger) mux.MiddlewareFunc {
 	return func(h http.Handler) http.Handler {
 		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 			lw := &logResponseWriter{ResponseWriter: w}
@ -221,49 +183,21 @@ func GetRequestID(v interface{}) string {
 	}
 }

-func setErrorAPI(apiName string, h http.Handler) http.Handler {
-	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		ctx := SetReqInfo(r.Context(), &ReqInfo{API: apiName})
-		h.ServeHTTP(w, r.WithContext(ctx))
-	})
-}
-
-// attachErrorHandler set NotFoundHandler and MethodNotAllowedHandler for mux.Router.
-func attachErrorHandler(api *mux.Router, log *zap.Logger, h Handler, center auth.Center, usersStat UsersStat) {
-	middlewares := []mux.MiddlewareFunc{
-		AuthMiddleware(log, center),
-		metricsMiddleware(log, h.ResolveBucket, usersStat),
-	}
-
-	var errorHandler http.Handler = http.HandlerFunc(errorResponseHandler)
-	for i := len(middlewares) - 1; i >= 0; i-- {
-		errorHandler = middlewares[i](errorHandler)
-	}
-
-	// If none of the routes match, add default error handler routes
-	api.NotFoundHandler = setErrorAPI("NotFound", errorHandler)
-	api.MethodNotAllowedHandler = setErrorAPI("MethodNotAllowed", errorHandler)
-}
-
 // Attach adds S3 API handlers from h to r for domains with m client limit using
 // center authentication and log logger.
-func Attach(r *mux.Router, domains []string, m MaxClients, h Handler, center auth.Center, log *zap.Logger, usersStat UsersStat) {
+func Attach(r *mux.Router, domains []string, m MaxClients, h Handler, center auth.Center, log *zap.Logger) {
 	api := r.PathPrefix(SlashSeparator).Subrouter()

 	api.Use(
 		// -- prepare request
 		setRequestID,

-		// Attach user authentication for all S3 routes.
-		AuthMiddleware(log, center),
-
-		metricsMiddleware(log, h.ResolveBucket, usersStat),
-
 		// -- logging error requests
-		logSuccessResponse(log),
+		logErrorResponse(log),
 	)

-	attachErrorHandler(api, log, h, center, usersStat)
+	// Attach user authentication for all S3 routes.
+	AttachUserAuth(api, center, log)

 	buckets := make([]*mux.Router, 0, len(domains)+1)
 	buckets = append(buckets, api.PathPrefix("/{bucket}").Subrouter())
@ -279,327 +213,277 @@ func Attach(r *mux.Router, domains []string, m MaxClients, h Handler, center aut
 			// -- append CORS headers to a response for
 			appendCORS(h),
 		)
-		bucket.Methods(http.MethodOptions).HandlerFunc(
-			m.Handle(h.Preflight)).
-			Name("Options")
+		bucket.Methods(http.MethodOptions).HandlerFunc(m.Handle(metrics.APIStats("preflight", h.Preflight))).Name("Options")
 		bucket.Methods(http.MethodHead).Path("/{object:.+}").HandlerFunc(
-			m.Handle(h.HeadObjectHandler)).
-			Name("HeadObject")
+			m.Handle(metrics.APIStats("headobject", h.HeadObjectHandler))).Name("HeadObject")
 		// CopyObjectPart
-		bucket.Methods(http.MethodPut).Path("/{object:.+}").Headers(hdrAmzCopySource, "").HandlerFunc(
-			m.Handle(h.UploadPartCopy)).
-			Queries("partNumber", "{partNumber:[0-9]+}", "uploadId", "{uploadId:.*}").
+		bucket.Methods(http.MethodPut).Path("/{object:.+}").Headers(hdrAmzCopySource, "").HandlerFunc(m.Handle(metrics.APIStats("uploadpartcopy", h.UploadPartCopy))).Queries("partNumber", "{partNumber:[0-9]+}", "uploadId", "{uploadId:.*}").
 			Name("UploadPartCopy")
 		// PutObjectPart
 		bucket.Methods(http.MethodPut).Path("/{object:.+}").HandlerFunc(
-			m.Handle(h.UploadPartHandler)).
-			Queries("partNumber", "{partNumber:[0-9]+}", "uploadId", "{uploadId:.*}").
+			m.Handle(metrics.APIStats("uploadpart", h.UploadPartHandler))).Queries("partNumber", "{partNumber:[0-9]+}", "uploadId", "{uploadId:.*}").
 			Name("UploadPart")
 		// ListParts
 		bucket.Methods(http.MethodGet).Path("/{object:.+}").HandlerFunc(
-			m.Handle(h.ListPartsHandler)).
-			Queries("uploadId", "{uploadId:.*}").
+			m.Handle(metrics.APIStats("listobjectparts", h.ListPartsHandler))).Queries("uploadId", "{uploadId:.*}").
 			Name("ListObjectParts")
 		// CompleteMultipartUpload
 		bucket.Methods(http.MethodPost).Path("/{object:.+}").HandlerFunc(
-			m.Handle(h.CompleteMultipartUploadHandler)).
-			Queries("uploadId", "{uploadId:.*}").
+			m.Handle(metrics.APIStats("completemutipartupload", h.CompleteMultipartUploadHandler))).Queries("uploadId", "{uploadId:.*}").
 			Name("CompleteMultipartUpload")
 		// CreateMultipartUpload
 		bucket.Methods(http.MethodPost).Path("/{object:.+}").HandlerFunc(
-			m.Handle(h.CreateMultipartUploadHandler)).
-			Queries("uploads", "").
+			m.Handle(metrics.APIStats("createmultipartupload", h.CreateMultipartUploadHandler))).Queries("uploads", "").
 			Name("CreateMultipartUpload")
 		// AbortMultipartUpload
 		bucket.Methods(http.MethodDelete).Path("/{object:.+}").HandlerFunc(
-			m.Handle(h.AbortMultipartUploadHandler)).
-			Queries("uploadId", "{uploadId:.*}").
+			m.Handle(metrics.APIStats("abortmultipartupload", h.AbortMultipartUploadHandler))).Queries("uploadId", "{uploadId:.*}").
 			Name("AbortMultipartUpload")
 		// ListMultipartUploads
 		bucket.Methods(http.MethodGet).HandlerFunc(
-			m.Handle(h.ListMultipartUploadsHandler)).
-			Queries("uploads", "").
+			m.Handle(metrics.APIStats("listmultipartuploads", h.ListMultipartUploadsHandler))).Queries("uploads", "").
 			Name("ListMultipartUploads")
 		// GetObjectACL -- this is a dummy call.
 		bucket.Methods(http.MethodGet).Path("/{object:.+}").HandlerFunc(
-			m.Handle(h.GetObjectACLHandler)).
-			Queries("acl", "").
+			m.Handle(metrics.APIStats("getobjectacl", h.GetObjectACLHandler))).Queries("acl", "").
 			Name("GetObjectACL")
 		// PutObjectACL -- this is a dummy call.
 		bucket.Methods(http.MethodPut).Path("/{object:.+}").HandlerFunc(
-			m.Handle(h.PutObjectACLHandler)).
-			Queries("acl", "").
+			m.Handle(metrics.APIStats("putobjectacl", h.PutObjectACLHandler))).Queries("acl", "").
 			Name("PutObjectACL")
 		// GetObjectTagging
 		bucket.Methods(http.MethodGet).Path("/{object:.+}").HandlerFunc(
-			m.Handle(h.GetObjectTaggingHandler)).
-			Queries("tagging", "").
+			m.Handle(metrics.APIStats("getobjecttagging", h.GetObjectTaggingHandler))).Queries("tagging", "").
 			Name("GetObjectTagging")
 		// PutObjectTagging
 		bucket.Methods(http.MethodPut).Path("/{object:.+}").HandlerFunc(
-			m.Handle(h.PutObjectTaggingHandler)).
-			Queries("tagging", "").
+			m.Handle(metrics.APIStats("putobjecttagging", h.PutObjectTaggingHandler))).Queries("tagging", "").
 			Name("PutObjectTagging")
 		// DeleteObjectTagging
 		bucket.Methods(http.MethodDelete).Path("/{object:.+}").HandlerFunc(
-			m.Handle(h.DeleteObjectTaggingHandler)).
-			Queries("tagging", "").
+			m.Handle(metrics.APIStats("deleteobjecttagging", h.DeleteObjectTaggingHandler))).Queries("tagging", "").
 			Name("DeleteObjectTagging")
 		// SelectObjectContent
 		bucket.Methods(http.MethodPost).Path("/{object:.+}").HandlerFunc(
-			m.Handle(h.SelectObjectContentHandler)).
-			Queries("select", "").Queries("select-type", "2").
+			m.Handle(metrics.APIStats("selectobjectcontent", h.SelectObjectContentHandler))).Queries("select", "").Queries("select-type", "2").
 			Name("SelectObjectContent")
 		// GetObjectRetention
 		bucket.Methods(http.MethodGet).Path("/{object:.+}").HandlerFunc(
-			m.Handle(h.GetObjectRetentionHandler)).
-			Queries("retention", "").
+			m.Handle(metrics.APIStats("getobjectretention", h.GetObjectRetentionHandler))).Queries("retention", "").
 			Name("GetObjectRetention")
 		// GetObjectLegalHold
 		bucket.Methods(http.MethodGet).Path("/{object:.+}").HandlerFunc(
-			m.Handle(h.GetObjectLegalHoldHandler)).
-			Queries("legal-hold", "").
+			m.Handle(metrics.APIStats("getobjectlegalhold", h.GetObjectLegalHoldHandler))).Queries("legal-hold", "").
 			Name("GetObjectLegalHold")
 		// GetObjectAttributes
 		bucket.Methods(http.MethodGet).Path("/{object:.+}").HandlerFunc(
-			m.Handle(h.GetObjectAttributesHandler)).
-			Queries("attributes", "").
+			m.Handle(metrics.APIStats("getobjectattributes", h.GetObjectAttributesHandler))).Queries("attributes", "").
 			Name("GetObjectAttributes")
 		// GetObject
 		bucket.Methods(http.MethodGet).Path("/{object:.+}").HandlerFunc(
-			m.Handle(h.GetObjectHandler)).
+			m.Handle(metrics.APIStats("getobject", h.GetObjectHandler))).
 			Name("GetObject")
 		// CopyObject
-		bucket.Methods(http.MethodPut).Path("/{object:.+}").Headers(hdrAmzCopySource, "").HandlerFunc(
-			m.Handle(h.CopyObjectHandler)).
+		bucket.Methods(http.MethodPut).Path("/{object:.+}").Headers(hdrAmzCopySource, "").HandlerFunc(m.Handle(metrics.APIStats("copyobject", h.CopyObjectHandler))).
 			Name("CopyObject")
 		// PutObjectRetention
 		bucket.Methods(http.MethodPut).Path("/{object:.+}").HandlerFunc(
-			m.Handle(h.PutObjectRetentionHandler)).
-			Queries("retention", "").
+			m.Handle(metrics.APIStats("putobjectretention", h.PutObjectRetentionHandler))).Queries("retention", "").
 			Name("PutObjectRetention")
 		// PutObjectLegalHold
 		bucket.Methods(http.MethodPut).Path("/{object:.+}").HandlerFunc(
-			m.Handle(h.PutObjectLegalHoldHandler)).
-			Queries("legal-hold", "").
+			m.Handle(metrics.APIStats("putobjectlegalhold", h.PutObjectLegalHoldHandler))).Queries("legal-hold", "").
 			Name("PutObjectLegalHold")

 		// PutObject
 		bucket.Methods(http.MethodPut).Path("/{object:.+}").HandlerFunc(
-			m.Handle(h.PutObjectHandler)).
+			m.Handle(metrics.APIStats("putobject", h.PutObjectHandler))).
 			Name("PutObject")
 		// DeleteObject
 		bucket.Methods(http.MethodDelete).Path("/{object:.+}").HandlerFunc(
-			m.Handle(h.DeleteObjectHandler)).
+			m.Handle(metrics.APIStats("deleteobject", h.DeleteObjectHandler))).
 			Name("DeleteObject")

 		// Bucket operations
 		// GetBucketLocation
 		bucket.Methods(http.MethodGet).HandlerFunc(
-			m.Handle(h.GetBucketLocationHandler)).
-			Queries("location", "").
+			m.Handle(metrics.APIStats("getbucketlocation", h.GetBucketLocationHandler))).Queries("location", "").
 			Name("GetBucketLocation")
 		// GetBucketPolicy
 		bucket.Methods(http.MethodGet).HandlerFunc(
-			m.Handle(h.GetBucketPolicyHandler)).
-			Queries("policy", "").
+			m.Handle(metrics.APIStats("getbucketpolicy", h.GetBucketPolicyHandler))).Queries("policy", "").
 			Name("GetBucketPolicy")
 		// GetBucketLifecycle
 		bucket.Methods(http.MethodGet).HandlerFunc(
-			m.Handle(h.GetBucketLifecycleHandler)).
-			Queries("lifecycle", "").
+			m.Handle(metrics.APIStats("getbucketlifecycle", h.GetBucketLifecycleHandler))).Queries("lifecycle", "").
 			Name("GetBucketLifecycle")
 		// GetBucketEncryption
 		bucket.Methods(http.MethodGet).HandlerFunc(
-			m.Handle(h.GetBucketEncryptionHandler)).
-			Queries("encryption", "").
+			m.Handle(metrics.APIStats("getbucketencryption", h.GetBucketEncryptionHandler))).Queries("encryption", "").
 			Name("GetBucketEncryption")
 		bucket.Methods(http.MethodGet).HandlerFunc(
-			m.Handle(h.GetBucketCorsHandler)).
-			Queries("cors", "").
+			m.Handle(metrics.APIStats("getbucketcors", h.GetBucketCorsHandler))).Queries("cors", "").
 			Name("GetBucketCors")
 		bucket.Methods(http.MethodPut).HandlerFunc(
-			m.Handle(h.PutBucketCorsHandler)).
-			Queries("cors", "").
+			m.Handle(metrics.APIStats("putbucketcors", h.PutBucketCorsHandler))).Queries("cors", "").
 			Name("PutBucketCors")
 		bucket.Methods(http.MethodDelete).HandlerFunc(
-			m.Handle(h.DeleteBucketCorsHandler)).
-			Queries("cors", "").
+			m.Handle(metrics.APIStats("deletebucketcors", h.DeleteBucketCorsHandler))).Queries("cors", "").
 			Name("DeleteBucketCors")
 		// Dummy Bucket Calls
 		// GetBucketACL -- this is a dummy call.
 		bucket.Methods(http.MethodGet).HandlerFunc(
-			m.Handle(h.GetBucketACLHandler)).
-			Queries("acl", "").
+			m.Handle(metrics.APIStats("getbucketacl", h.GetBucketACLHandler))).Queries("acl", "").
 			Name("GetBucketACL")
 		// PutBucketACL -- this is a dummy call.
 		bucket.Methods(http.MethodPut).HandlerFunc(
-			m.Handle(h.PutBucketACLHandler)).
-			Queries("acl", "").
+			m.Handle(metrics.APIStats("putbucketacl", h.PutBucketACLHandler))).Queries("acl", "").
 			Name("PutBucketACL")
 		// GetBucketWebsiteHandler -- this is a dummy call.
 		bucket.Methods(http.MethodGet).HandlerFunc(
-			m.Handle(h.GetBucketWebsiteHandler)).
-			Queries("website", "").
+			m.Handle(metrics.APIStats("getbucketwebsite", h.GetBucketWebsiteHandler))).Queries("website", "").
 			Name("GetBucketWebsite")
 		// GetBucketAccelerateHandler -- this is a dummy call.
 		bucket.Methods(http.MethodGet).HandlerFunc(
-			m.Handle(h.GetBucketAccelerateHandler)).
-			Queries("accelerate", "").
+			m.Handle(metrics.APIStats("getbucketaccelerate", h.GetBucketAccelerateHandler))).Queries("accelerate", "").
 			Name("GetBucketAccelerate")
 		// GetBucketRequestPaymentHandler -- this is a dummy call.
 		bucket.Methods(http.MethodGet).HandlerFunc(
-			m.Handle(h.GetBucketRequestPaymentHandler)).
-			Queries("requestPayment", "").
+			m.Handle(metrics.APIStats("getbucketrequestpayment", h.GetBucketRequestPaymentHandler))).Queries("requestPayment", "").
 			Name("GetBucketRequestPayment")
 		// GetBucketLoggingHandler -- this is a dummy call.
 		bucket.Methods(http.MethodGet).HandlerFunc(
-			m.Handle(h.GetBucketLoggingHandler)).
-			Queries("logging", "").
+			m.Handle(metrics.APIStats("getbucketlogging", h.GetBucketLoggingHandler))).Queries("logging", "").
 			Name("GetBucketLogging")
+		// GetBucketLifecycleHandler -- this is a dummy call.
+		bucket.Methods(http.MethodGet).HandlerFunc(
+			m.Handle(metrics.APIStats("getbucketlifecycle", h.GetBucketLifecycleHandler))).Queries("lifecycle", "").
+			Name("GetBucketLifecycle")
 		// GetBucketReplicationHandler -- this is a dummy call.
 		bucket.Methods(http.MethodGet).HandlerFunc(
-			m.Handle(h.GetBucketReplicationHandler)).
-			Queries("replication", "").
+			m.Handle(metrics.APIStats("getbucketreplication", h.GetBucketReplicationHandler))).Queries("replication", "").
 			Name("GetBucketReplication")
 		// GetBucketTaggingHandler
 		bucket.Methods(http.MethodGet).HandlerFunc(
-			m.Handle(h.GetBucketTaggingHandler)).
-			Queries("tagging", "").
+			m.Handle(metrics.APIStats("getbuckettagging", h.GetBucketTaggingHandler))).Queries("tagging", "").
 			Name("GetBucketTagging")
 		// DeleteBucketWebsiteHandler
 		bucket.Methods(http.MethodDelete).HandlerFunc(
-			m.Handle(h.DeleteBucketWebsiteHandler)).
-			Queries("website", "").
+			m.Handle(metrics.APIStats("deletebucketwebsite", h.DeleteBucketWebsiteHandler))).Queries("website", "").
 			Name("DeleteBucketWebsite")
 		// DeleteBucketTaggingHandler
 		bucket.Methods(http.MethodDelete).HandlerFunc(
-			m.Handle(h.DeleteBucketTaggingHandler)).
-			Queries("tagging", "").
+			m.Handle(metrics.APIStats("deletebuckettagging", h.DeleteBucketTaggingHandler))).Queries("tagging", "").
 			Name("DeleteBucketTagging")

 		// GetBucketObjectLockConfig
 		bucket.Methods(http.MethodGet).HandlerFunc(
-			m.Handle(h.GetBucketObjectLockConfigHandler)).
-			Queries("object-lock", "").
+			m.Handle(metrics.APIStats("getbucketobjectlockconfiguration", h.GetBucketObjectLockConfigHandler))).Queries("object-lock", "").
 			Name("GetBucketObjectLockConfig")
 		// GetBucketVersioning
 		bucket.Methods(http.MethodGet).HandlerFunc(
-			m.Handle(h.GetBucketVersioningHandler)).
-			Queries("versioning", "").
+			m.Handle(metrics.APIStats("getbucketversioning", h.GetBucketVersioningHandler))).Queries("versioning", "").
 			Name("GetBucketVersioning")
 		// GetBucketNotification
 		bucket.Methods(http.MethodGet).HandlerFunc(
-			m.Handle(h.GetBucketNotificationHandler)).
-			Queries("notification", "").
+			m.Handle(metrics.APIStats("getbucketnotification", h.GetBucketNotificationHandler))).Queries("notification", "").
 			Name("GetBucketNotification")
 		// ListenBucketNotification
-		bucket.Methods(http.MethodGet).HandlerFunc(h.ListenBucketNotificationHandler).
-			Queries("events", "{events:.*}").
+		bucket.Methods(http.MethodGet).HandlerFunc(metrics.APIStats("listenbucketnotification", h.ListenBucketNotificationHandler)).Queries("events", "{events:.*}").
 			Name("ListenBucketNotification")
 		// ListObjectsV2M
 		bucket.Methods(http.MethodGet).HandlerFunc(
-			m.Handle(h.ListObjectsV2MHandler)).
-			Queries("list-type", "2", "metadata", "true").
+			m.Handle(metrics.APIStats("listobjectsv2M", h.ListObjectsV2MHandler))).Queries("list-type", "2", "metadata", "true").
 			Name("ListObjectsV2M")
 		// ListObjectsV2
 		bucket.Methods(http.MethodGet).HandlerFunc(
-			m.Handle(h.ListObjectsV2Handler)).
-			Queries("list-type", "2").
+			m.Handle(metrics.APIStats("listobjectsv2", h.ListObjectsV2Handler))).Queries("list-type", "2").
 			Name("ListObjectsV2")
 		// ListBucketVersions
 		bucket.Methods(http.MethodGet).HandlerFunc(
-			m.Handle(h.ListBucketObjectVersionsHandler)).
-			Queries("versions", "").
+			m.Handle(metrics.APIStats("listbucketversions", h.ListBucketObjectVersionsHandler))).Queries("versions", "").
 			Name("ListBucketVersions")
 		// ListObjectsV1 (Legacy)
 		bucket.Methods(http.MethodGet).HandlerFunc(
-			m.Handle(h.ListObjectsV1Handler)).
+			m.Handle(metrics.APIStats("listobjectsv1", h.ListObjectsV1Handler))).
 			Name("ListObjectsV1")
 		// PutBucketLifecycle
 		bucket.Methods(http.MethodPut).HandlerFunc(
-			m.Handle(h.PutBucketLifecycleHandler)).
-			Queries("lifecycle", "").
+			m.Handle(metrics.APIStats("putbucketlifecycle", h.PutBucketLifecycleHandler))).Queries("lifecycle", "").
 			Name("PutBucketLifecycle")
 		// PutBucketEncryption
 		bucket.Methods(http.MethodPut).HandlerFunc(
-			m.Handle(h.PutBucketEncryptionHandler)).
-			Queries("encryption", "").
+			m.Handle(metrics.APIStats("putbucketencryption", h.PutBucketEncryptionHandler))).Queries("encryption", "").
 			Name("PutBucketEncryption")

 		// PutBucketPolicy
 		bucket.Methods(http.MethodPut).HandlerFunc(
-			m.Handle(h.PutBucketPolicyHandler)).
-			Queries("policy", "").
+			m.Handle(metrics.APIStats("putbucketpolicy", h.PutBucketPolicyHandler))).Queries("policy", "").
 			Name("PutBucketPolicy")

 		// PutBucketObjectLockConfig
 		bucket.Methods(http.MethodPut).HandlerFunc(
-			m.Handle(h.PutBucketObjectLockConfigHandler)).
-			Queries("object-lock", "").
+			m.Handle(metrics.APIStats("putbucketobjectlockconfig", h.PutBucketObjectLockConfigHandler))).Queries("object-lock", "").
 			Name("PutBucketObjectLockConfig")
 		// PutBucketTaggingHandler
 		bucket.Methods(http.MethodPut).HandlerFunc(
-			m.Handle(h.PutBucketTaggingHandler)).
-			Queries("tagging", "").
+			m.Handle(metrics.APIStats("putbuckettagging", h.PutBucketTaggingHandler))).Queries("tagging", "").
 			Name("PutBucketTagging")
 		// PutBucketVersioning
 		bucket.Methods(http.MethodPut).HandlerFunc(
-			m.Handle(h.PutBucketVersioningHandler)).
-			Queries("versioning", "").
+			m.Handle(metrics.APIStats("putbucketversioning", h.PutBucketVersioningHandler))).Queries("versioning", "").
 			Name("PutBucketVersioning")
 		// PutBucketNotification
 		bucket.Methods(http.MethodPut).HandlerFunc(
-			m.Handle(h.PutBucketNotificationHandler)).
-			Queries("notification", "").
+			m.Handle(metrics.APIStats("putbucketnotification", h.PutBucketNotificationHandler))).Queries("notification", "").
 			Name("PutBucketNotification")
 		// CreateBucket
 		bucket.Methods(http.MethodPut).HandlerFunc(
-			m.Handle(h.CreateBucketHandler)).
+			m.Handle(metrics.APIStats("createbucket", h.CreateBucketHandler))).
 			Name("CreateBucket")
 		// HeadBucket
 		bucket.Methods(http.MethodHead).HandlerFunc(
-			m.Handle(h.HeadBucketHandler)).
+			m.Handle(metrics.APIStats("headbucket", h.HeadBucketHandler))).
 			Name("HeadBucket")
 		// PostPolicy
 		bucket.Methods(http.MethodPost).HeadersRegexp(hdrContentType, "multipart/form-data*").HandlerFunc(
-			m.Handle(h.PostObject)).
+			m.Handle(metrics.APIStats("postobject", h.PostObject))).
 			Name("PostObject")
 		// DeleteMultipleObjects
 		bucket.Methods(http.MethodPost).HandlerFunc(
-			m.Handle(h.DeleteMultipleObjectsHandler)).
-			Queries("delete", "").
+			m.Handle(metrics.APIStats("deletemultipleobjects", h.DeleteMultipleObjectsHandler))).Queries("delete", "").
 			Name("DeleteMultipleObjects")
 		// DeleteBucketPolicy
 		bucket.Methods(http.MethodDelete).HandlerFunc(
-			m.Handle(h.DeleteBucketPolicyHandler)).
-			Queries("policy", "").
+			m.Handle(metrics.APIStats("deletebucketpolicy", h.DeleteBucketPolicyHandler))).Queries("policy", "").
 			Name("DeleteBucketPolicy")
 		// DeleteBucketLifecycle
 		bucket.Methods(http.MethodDelete).HandlerFunc(
-			m.Handle(h.DeleteBucketLifecycleHandler)).
-			Queries("lifecycle", "").
+			m.Handle(metrics.APIStats("deletebucketlifecycle", h.DeleteBucketLifecycleHandler))).Queries("lifecycle", "").
 			Name("DeleteBucketLifecycle")
 		// DeleteBucketEncryption
 		bucket.Methods(http.MethodDelete).HandlerFunc(
-			m.Handle(h.DeleteBucketEncryptionHandler)).
-			Queries("encryption", "").
+			m.Handle(metrics.APIStats("deletebucketencryption", h.DeleteBucketEncryptionHandler))).Queries("encryption", "").
 			Name("DeleteBucketEncryption")
 		// DeleteBucket
 		bucket.Methods(http.MethodDelete).HandlerFunc(
-			m.Handle(h.DeleteBucketHandler)).
+			m.Handle(metrics.APIStats("deletebucket", h.DeleteBucketHandler))).
 			Name("DeleteBucket")
 	}
 	// Root operation

 	// ListBuckets
 	api.Methods(http.MethodGet).Path(SlashSeparator).HandlerFunc(
-		m.Handle(h.ListBucketsHandler)).
+		m.Handle(metrics.APIStats("listbuckets", h.ListBucketsHandler))).
 		Name("ListBuckets")

 	// S3 browser with signature v4 adds '//' for ListBuckets request, so rather
 	// than failing with UnknownAPIRequest we simply handle it for now.
 	api.Methods(http.MethodGet).Path(SlashSeparator + SlashSeparator).HandlerFunc(
-		m.Handle(h.ListBucketsHandler)).
+		m.Handle(metrics.APIStats("listbuckets", h.ListBucketsHandler))).
 		Name("ListBuckets")
+
+	// If none of the routes match, add default error handler routes
+	api.NotFoundHandler = metrics.APIStats("notfound", errorResponseHandler)
+	api.MethodNotAllowedHandler = metrics.APIStats("methodnotallowed", errorResponseHandler)
 }
--- a/api/user_auth.go
+++ b/api/user_auth.go
@ -4,8 +4,8 @@ import (
 	"context"
 	"net/http"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/auth"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/errors"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/auth"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/errors"
 	"github.com/gorilla/mux"
 	"go.uber.org/zap"
 )
@ -19,9 +19,9 @@ var BoxData = KeyWrapper("__context_box_key")
 // ClientTime is an ID used to store client time.Time in a context.
 var ClientTime = KeyWrapper("__context_client_time")

-// AuthMiddleware adds user authentication via center to router using log for logging.
-func AuthMiddleware(log *zap.Logger, center auth.Center) mux.MiddlewareFunc {
-	return func(h http.Handler) http.Handler {
+// AttachUserAuth adds user authentication via center to router using log for logging.
+func AttachUserAuth(router *mux.Router, center auth.Center, log *zap.Logger) {
+	router.Use(func(h http.Handler) http.Handler {
 		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 			var ctx context.Context
 			box, err := center.Authenticate(r)
@ -46,5 +46,5 @@ func AuthMiddleware(log *zap.Logger, center auth.Center) mux.MiddlewareFunc {

 			h.ServeHTTP(w, r.WithContext(ctx))
 		})
-	}
+	})
 }
--- a/authmate/authmate.go
+++ b/authmate/authmate.go
@ -11,17 +11,17 @@ import (
 	"os"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/cache"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/creds/accessbox"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/creds/tokens"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/bearer"
-	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
-	frostfsecdsa "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/crypto/ecdsa"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/eacl"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/netmap"
-	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/session"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/cache"
+	"github.com/TrueCloudLab/frostfs-s3-gw/creds/accessbox"
+	"github.com/TrueCloudLab/frostfs-s3-gw/creds/tokens"
+	"github.com/TrueCloudLab/frostfs-sdk-go/bearer"
+	cid "github.com/TrueCloudLab/frostfs-sdk-go/container/id"
+	frostfsecdsa "github.com/TrueCloudLab/frostfs-sdk-go/crypto/ecdsa"
+	"github.com/TrueCloudLab/frostfs-sdk-go/eacl"
+	"github.com/TrueCloudLab/frostfs-sdk-go/netmap"
+	oid "github.com/TrueCloudLab/frostfs-sdk-go/object/id"
+	"github.com/TrueCloudLab/frostfs-sdk-go/session"
+	"github.com/TrueCloudLab/frostfs-sdk-go/user"
 	"github.com/google/uuid"
 	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
 	"go.uber.org/zap"
--- a/authmate/session_tokens.go
+++ b/authmate/session_tokens.go
@ -4,9 +4,9 @@ import (
 	"encoding/json"
 	"fmt"

-	apisession "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/session"
-	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/session"
+	apisession "github.com/TrueCloudLab/frostfs-api-go/v2/session"
+	cid "github.com/TrueCloudLab/frostfs-sdk-go/container/id"
+	"github.com/TrueCloudLab/frostfs-sdk-go/session"
 )

 type (
--- a/authmate/session_tokens_test.go
+++ b/authmate/session_tokens_test.go
@ -3,7 +3,7 @@ package authmate
 import (
 	"testing"

-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/session"
+	"github.com/TrueCloudLab/frostfs-sdk-go/session"
 	"github.com/stretchr/testify/require"
 )

--- a/cmd/s3-authmate/main.go
+++ b/cmd/s3-authmate/main.go
@ -13,13 +13,13 @@ import (
 	"syscall"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/authmate"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/internal/frostfs"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/internal/version"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/internal/wallet"
-	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/pool"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/authmate"
+	"github.com/TrueCloudLab/frostfs-s3-gw/internal/frostfs"
+	"github.com/TrueCloudLab/frostfs-s3-gw/internal/version"
+	"github.com/TrueCloudLab/frostfs-s3-gw/internal/wallet"
+	cid "github.com/TrueCloudLab/frostfs-sdk-go/container/id"
+	"github.com/TrueCloudLab/frostfs-sdk-go/pool"
 	"github.com/aws/aws-sdk-go/aws"
 	"github.com/aws/aws-sdk-go/aws/credentials"
 	"github.com/aws/aws-sdk-go/aws/session"
--- a/cmd/s3-gw/app.go
+++ b/cmd/s3-gw/app.go
@ -13,20 +13,18 @@ import (
 	"syscall"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/auth"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/cache"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/handler"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/layer"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/notifications"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/resolver"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/internal/frostfs"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/internal/version"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/internal/wallet"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/internal/xml"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/metrics"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/netmap"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/pool"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/auth"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/cache"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/handler"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/layer"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/notifications"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/resolver"
+	"github.com/TrueCloudLab/frostfs-s3-gw/internal/frostfs"
+	"github.com/TrueCloudLab/frostfs-s3-gw/internal/version"
+	"github.com/TrueCloudLab/frostfs-s3-gw/internal/wallet"
+	"github.com/TrueCloudLab/frostfs-sdk-go/netmap"
+	"github.com/TrueCloudLab/frostfs-sdk-go/pool"
 	"github.com/gorilla/mux"
 	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
 	"github.com/spf13/viper"
@ -47,7 +45,7 @@ type (

 		servers []Server

-		metrics        *metrics.AppMetrics
+		metrics        *appMetrics
 		bucketResolver *resolver.BucketResolver
 		services       []*Service
 		settings       *appSettings
@ -60,7 +58,6 @@ type (
 	appSettings struct {
 		logLevel zap.AtomicLevel
 		policies *placementPolicy
-		xmlDecoder *xml.DecoderProvider
 	}

 	Logger struct {
@ -68,6 +65,18 @@ type (
 		lvl    zap.AtomicLevel
 	}

+	appMetrics struct {
+		logger   *zap.Logger
+		provider GateMetricsCollector
+		mu       sync.RWMutex
+		enabled  bool
+	}
+
+	GateMetricsCollector interface {
+		SetHealth(int32)
+		Unregister()
+	}
+
 	placementPolicy struct {
 		mu            sync.RWMutex
 		defaultPolicy netmap.PlacementPolicy
@ -156,7 +165,6 @@ func newAppSettings(log *Logger, v *viper.Viper) *appSettings {
 	return &appSettings{
 		logLevel: log.lvl,
 		policies: policies,
-		xmlDecoder: xml.NewDecoderProvider(v.GetBool(cfgKludgeUseDefaultXMLNSForCompleteMultipartUpload)),
 	}
 }

@ -175,7 +183,8 @@ func (a *App) initAPI(ctx context.Context) {
 }

 func (a *App) initMetrics() {
-	a.metrics = metrics.NewAppMetrics(a.log, frostfs.NewPoolStatistic(a.pool), a.cfg.GetBool(cfgPrometheusEnabled))
+	gateMetricsProvider := newGateMetrics(frostfs.NewPoolStatistic(a.pool))
+	a.metrics = newAppMetrics(a.log, gateMetricsProvider, a.cfg.GetBool(cfgPrometheusEnabled))
 }

 func (a *App) initResolver() {
@ -264,7 +273,6 @@ func getPool(ctx context.Context, logger *zap.Logger, cfg *viper.Viper) (*pool.P
 		errorThreshold = defaultPoolErrorThreshold
 	}
 	prm.SetErrorThreshold(errorThreshold)
-	prm.SetLogger(logger)

 	p, err := pool.NewPool(prm)
 	if err != nil {
@ -335,6 +343,47 @@ func (p *placementPolicy) update(defaultPolicy string, regionPolicyFilepath stri
 	return nil
 }

+func newAppMetrics(logger *zap.Logger, provider GateMetricsCollector, enabled bool) *appMetrics {
+	if !enabled {
+		logger.Warn("metrics are disabled")
+	}
+	return &appMetrics{
+		logger:   logger,
+		provider: provider,
+	}
+}
+
+func (m *appMetrics) SetEnabled(enabled bool) {
+	if !enabled {
+		m.logger.Warn("metrics are disabled")
+	}
+
+	m.mu.Lock()
+	m.enabled = enabled
+	m.mu.Unlock()
+}
+
+func (m *appMetrics) SetHealth(status int32) {
+	m.mu.RLock()
+	if !m.enabled {
+		m.mu.RUnlock()
+		return
+	}
+	m.mu.RUnlock()
+
+	m.provider.SetHealth(status)
+}
+
+func (m *appMetrics) Shutdown() {
+	m.mu.Lock()
+	if m.enabled {
+		m.provider.SetHealth(0)
+		m.enabled = false
+	}
+	m.provider.Unregister()
+	m.mu.Unlock()
+}
+
 func remove(list []string, element string) []string {
 	for i, item := range list {
 		if item == element {
@ -372,7 +421,7 @@ func (a *App) Serve(ctx context.Context) {
 	domains := a.cfg.GetStringSlice(cfgListenDomains)
 	a.log.Info("fetch domains, prepare to use API", zap.Strings("domains", domains))
 	router := mux.NewRouter().SkipClean(true).UseEncodedPath()
-	api.Attach(router, domains, a.maxClients, a.api, a.ctr, a.log, a.metrics)
+	api.Attach(router, domains, a.maxClients, a.api, a.ctr, a.log)

 	// Use mux.Router as http.Handler
 	srv := new(http.Server)
@ -422,11 +471,11 @@ func shutdownContext() (context.Context, context.CancelFunc) {
 func (a *App) configReload() {
 	a.log.Info("SIGHUP config reload started")

-	if !a.cfg.IsSet(cmdConfig) && !a.cfg.IsSet(cmdConfigDir) {
+	if !a.cfg.IsSet(cmdConfig) {
 		a.log.Warn("failed to reload config because it's missed")
 		return
 	}
-	if err := readInConfig(a.cfg); err != nil {
+	if err := readConfig(a.cfg); err != nil {
 		a.log.Warn("failed to reload config", zap.Error(err))
 		return
 	}
@ -460,8 +509,6 @@ func (a *App) updateSettings() {
 	if err := a.settings.policies.update(getDefaultPolicyValue(a.cfg), a.cfg.GetString(cfgPolicyRegionMapFile)); err != nil {
 		a.log.Warn("policies won't be updated", zap.Error(err))
 	}
-
-	a.settings.xmlDecoder.UseDefaultNamespaceForCompleteMultipart(a.cfg.GetBool(cfgKludgeUseDefaultXMLNSForCompleteMultipartUpload))
 }

 func (a *App) startServices() {
@ -471,7 +518,7 @@ func (a *App) startServices() {
 	a.services = append(a.services, pprofService)
 	go pprofService.Start()

-	prometheusService := NewPrometheusService(a.cfg, a.log, a.metrics.Handler())
+	prometheusService := NewPrometheusService(a.cfg, a.log)
 	a.services = append(a.services, prometheusService)
 	go prometheusService.Start()
 }
@ -479,61 +526,37 @@ func (a *App) startServices() {
 func (a *App) initServers(ctx context.Context) {
 	serversInfo := fetchServers(a.cfg)

-	a.servers = make([]Server, 0, len(serversInfo))
-	for _, serverInfo := range serversInfo {
-		fields := []zap.Field{
+	a.servers = make([]Server, len(serversInfo))
+	for i, serverInfo := range serversInfo {
+		a.log.Info("added server",
 			zap.String("address", serverInfo.Address), zap.Bool("tls enabled", serverInfo.TLS.Enabled),
-			zap.String("tls cert", serverInfo.TLS.CertFile), zap.String("tls key", serverInfo.TLS.KeyFile),
-		}
-		srv, err := newServer(ctx, serverInfo)
-		if err != nil {
-			a.log.Warn("failed to add server", append(fields, zap.Error(err))...)
-			continue
-		}
-
-		a.servers = append(a.servers, srv)
-		a.log.Info("add server", fields...)
-	}
-
-	if len(a.servers) == 0 {
-		a.log.Fatal("no healthy servers")
+			zap.String("tls cert", serverInfo.TLS.CertFile), zap.String("tls key", serverInfo.TLS.KeyFile))
+		a.servers[i] = newServer(ctx, serverInfo, a.log)
 	}
 }

 func (a *App) updateServers() error {
 	serversInfo := fetchServers(a.cfg)

-	var found bool
-	for _, serverInfo := range serversInfo {
-		index := a.serverIndex(serverInfo.Address)
-		if index == -1 {
-			continue
+	if len(serversInfo) != len(a.servers) {
+		return fmt.Errorf("invalid servers configuration: amount mismatch: old '%d', new '%d", len(a.servers), len(serversInfo))
+	}
+
+	for i, serverInfo := range serversInfo {
+		if serverInfo.Address != a.servers[i].Address() {
+			return fmt.Errorf("invalid servers configuration: addresses mismatch: old '%s', new '%s", a.servers[i].Address(), serverInfo.Address)
 		}

 		if serverInfo.TLS.Enabled {
-			if err := a.servers[index].UpdateCert(serverInfo.TLS.CertFile, serverInfo.TLS.KeyFile); err != nil {
+			if err := a.servers[i].UpdateCert(serverInfo.TLS.CertFile, serverInfo.TLS.KeyFile); err != nil {
 				return fmt.Errorf("failed to update tls certs: %w", err)
 			}
 		}
-		found = true
-	}
-
-	if !found {
-		return fmt.Errorf("invalid servers configuration: no known server found")
 	}

 	return nil
 }

-func (a *App) serverIndex(address string) int {
-	for i := range a.servers {
-		if a.servers[i].Address() == address {
-			return i
-		}
-	}
-	return -1
-}
-
 func (a *App) stopServices() {
 	ctx, cancel := shutdownContext()
 	defer cancel()
@ -630,7 +653,6 @@ func (a *App) initHandler() {
 		DefaultMaxAge:      handler.DefaultMaxAge,
 		NotificatorEnabled: a.cfg.GetBool(cfgEnableNATS),
 		CopiesNumber:       handler.DefaultCopiesNumber,
-		XMLDecoder:         a.settings.xmlDecoder,
 	}

 	if a.cfg.IsSet(cfgDefaultMaxAge) {
@ -648,14 +670,6 @@ func (a *App) initHandler() {
 		cfg.CopiesNumber = val
 	}

-	cfg.ResolveZoneList = a.cfg.GetStringSlice(cfgResolveBucketAllow)
-	cfg.IsResolveListAllow = len(cfg.ResolveZoneList) > 0
-	if !cfg.IsResolveListAllow {
-		cfg.ResolveZoneList = a.cfg.GetStringSlice(cfgResolveBucketDeny)
-	}
-
-	cfg.CompleteMultipartKeepalive = a.cfg.GetDuration(cfgKludgeCompleteMultipartUploadKeepalive)
-
 	var err error
 	a.api, err = handler.New(a.log, a.obj, a.nc, cfg)
 	if err != nil {
--- a/cmd/s3-gw/app_metrics.go
+++ b/cmd/s3-gw/app_metrics.go
@ -3,12 +3,227 @@ package main
 import (
 	"net/http"

+	"github.com/TrueCloudLab/frostfs-sdk-go/pool"
+	"github.com/prometheus/client_golang/prometheus"
+	"github.com/prometheus/client_golang/prometheus/promhttp"
 	"github.com/spf13/viper"
 	"go.uber.org/zap"
 )

+const (
+	namespace      = "frostfs_s3_gw"
+	stateSubsystem = "state"
+	poolSubsystem  = "pool"
+
+	methodGetBalance       = "get_balance"
+	methodPutContainer     = "put_container"
+	methodGetContainer     = "get_container"
+	methodListContainer    = "list_container"
+	methodDeleteContainer  = "delete_container"
+	methodGetContainerEacl = "get_container_eacl"
+	methodSetContainerEacl = "set_container_eacl"
+	methodEndpointInfo     = "endpoint_info"
+	methodNetworkInfo      = "network_info"
+	methodPutObject        = "put_object"
+	methodDeleteObject     = "delete_object"
+	methodGetObject        = "get_object"
+	methodHeadObject       = "head_object"
+	methodRangeObject      = "range_object"
+	methodCreateSession    = "create_session"
+)
+
+type StatisticScraper interface {
+	Statistic() pool.Statistic
+}
+
+type GateMetrics struct {
+	stateMetrics
+	poolMetricsCollector
+}
+
+type stateMetrics struct {
+	healthCheck prometheus.Gauge
+}
+
+type poolMetricsCollector struct {
+	poolStatScraper     StatisticScraper
+	overallErrors       prometheus.Gauge
+	overallNodeErrors   *prometheus.GaugeVec
+	overallNodeRequests *prometheus.GaugeVec
+	currentErrors       *prometheus.GaugeVec
+	requestDuration     *prometheus.GaugeVec
+}
+
+func newGateMetrics(scraper StatisticScraper) *GateMetrics {
+	stateMetric := newStateMetrics()
+	stateMetric.register()
+
+	poolMetric := newPoolMetricsCollector(scraper)
+	poolMetric.register()
+
+	return &GateMetrics{
+		stateMetrics:         *stateMetric,
+		poolMetricsCollector: *poolMetric,
+	}
+}
+
+func (g *GateMetrics) Unregister() {
+	g.stateMetrics.unregister()
+	prometheus.Unregister(&g.poolMetricsCollector)
+}
+
+func newStateMetrics() *stateMetrics {
+	return &stateMetrics{
+		healthCheck: prometheus.NewGauge(prometheus.GaugeOpts{
+			Namespace: namespace,
+			Subsystem: stateSubsystem,
+			Name:      "health",
+			Help:      "Current S3 gateway state",
+		}),
+	}
+}
+
+func (m stateMetrics) register() {
+	prometheus.MustRegister(m.healthCheck)
+}
+
+func (m stateMetrics) unregister() {
+	prometheus.Unregister(m.healthCheck)
+}
+
+func (m stateMetrics) SetHealth(s int32) {
+	m.healthCheck.Set(float64(s))
+}
+
+func newPoolMetricsCollector(scraper StatisticScraper) *poolMetricsCollector {
+	overallErrors := prometheus.NewGauge(
+		prometheus.GaugeOpts{
+			Namespace: namespace,
+			Subsystem: poolSubsystem,
+			Name:      "overall_errors",
+			Help:      "Total number of errors in pool",
+		},
+	)
+
+	overallNodeErrors := prometheus.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Namespace: namespace,
+			Subsystem: poolSubsystem,
+			Name:      "overall_node_errors",
+			Help:      "Total number of errors for connection in pool",
+		},
+		[]string{
+			"node",
+		},
+	)
+
+	overallNodeRequests := prometheus.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Namespace: namespace,
+			Subsystem: poolSubsystem,
+			Name:      "overall_node_requests",
+			Help:      "Total number of requests to specific node in pool",
+		},
+		[]string{
+			"node",
+		},
+	)
+
+	currentErrors := prometheus.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Namespace: namespace,
+			Subsystem: poolSubsystem,
+			Name:      "current_errors",
+			Help:      "Number of errors on current connections that will be reset after the threshold",
+		},
+		[]string{
+			"node",
+		},
+	)
+
+	requestsDuration := prometheus.NewGaugeVec(
+		prometheus.GaugeOpts{
+			Namespace: namespace,
+			Subsystem: poolSubsystem,
+			Name:      "avg_request_duration",
+			Help:      "Average request duration (in milliseconds) for specific method on node in pool",
+		},
+		[]string{
+			"node",
+			"method",
+		},
+	)
+
+	return &poolMetricsCollector{
+		poolStatScraper:     scraper,
+		overallErrors:       overallErrors,
+		overallNodeErrors:   overallNodeErrors,
+		overallNodeRequests: overallNodeRequests,
+		currentErrors:       currentErrors,
+		requestDuration:     requestsDuration,
+	}
+}
+
+func (m *poolMetricsCollector) Collect(ch chan<- prometheus.Metric) {
+	m.updateStatistic()
+	m.overallErrors.Collect(ch)
+	m.overallNodeErrors.Collect(ch)
+	m.overallNodeRequests.Collect(ch)
+	m.currentErrors.Collect(ch)
+	m.requestDuration.Collect(ch)
+}
+
+func (m *poolMetricsCollector) Describe(descs chan<- *prometheus.Desc) {
+	m.overallErrors.Describe(descs)
+	m.overallNodeErrors.Describe(descs)
+	m.overallNodeRequests.Describe(descs)
+	m.currentErrors.Describe(descs)
+	m.requestDuration.Describe(descs)
+}
+
+func (m *poolMetricsCollector) register() {
+	prometheus.MustRegister(m)
+}
+
+func (m *poolMetricsCollector) updateStatistic() {
+	stat := m.poolStatScraper.Statistic()
+
+	m.overallNodeErrors.Reset()
+	m.overallNodeRequests.Reset()
+	m.currentErrors.Reset()
+	m.requestDuration.Reset()
+
+	for _, node := range stat.Nodes() {
+		m.overallNodeErrors.WithLabelValues(node.Address()).Set(float64(node.OverallErrors()))
+		m.overallNodeRequests.WithLabelValues(node.Address()).Set(float64(node.Requests()))
+
+		m.currentErrors.WithLabelValues(node.Address()).Set(float64(node.CurrentErrors()))
+		m.updateRequestsDuration(node)
+	}
+
+	m.overallErrors.Set(float64(stat.OverallErrors()))
+}
+
+func (m *poolMetricsCollector) updateRequestsDuration(node pool.NodeStatistic) {
+	m.requestDuration.WithLabelValues(node.Address(), methodGetBalance).Set(float64(node.AverageGetBalance().Milliseconds()))
+	m.requestDuration.WithLabelValues(node.Address(), methodPutContainer).Set(float64(node.AveragePutContainer().Milliseconds()))
+	m.requestDuration.WithLabelValues(node.Address(), methodGetContainer).Set(float64(node.AverageGetContainer().Milliseconds()))
+	m.requestDuration.WithLabelValues(node.Address(), methodListContainer).Set(float64(node.AverageListContainer().Milliseconds()))
+	m.requestDuration.WithLabelValues(node.Address(), methodDeleteContainer).Set(float64(node.AverageDeleteContainer().Milliseconds()))
+	m.requestDuration.WithLabelValues(node.Address(), methodGetContainerEacl).Set(float64(node.AverageGetContainerEACL().Milliseconds()))
+	m.requestDuration.WithLabelValues(node.Address(), methodSetContainerEacl).Set(float64(node.AverageSetContainerEACL().Milliseconds()))
+	m.requestDuration.WithLabelValues(node.Address(), methodEndpointInfo).Set(float64(node.AverageEndpointInfo().Milliseconds()))
+	m.requestDuration.WithLabelValues(node.Address(), methodNetworkInfo).Set(float64(node.AverageNetworkInfo().Milliseconds()))
+	m.requestDuration.WithLabelValues(node.Address(), methodPutObject).Set(float64(node.AveragePutObject().Milliseconds()))
+	m.requestDuration.WithLabelValues(node.Address(), methodDeleteObject).Set(float64(node.AverageDeleteObject().Milliseconds()))
+	m.requestDuration.WithLabelValues(node.Address(), methodGetObject).Set(float64(node.AverageGetObject().Milliseconds()))
+	m.requestDuration.WithLabelValues(node.Address(), methodHeadObject).Set(float64(node.AverageHeadObject().Milliseconds()))
+	m.requestDuration.WithLabelValues(node.Address(), methodRangeObject).Set(float64(node.AverageRangeObject().Milliseconds()))
+	m.requestDuration.WithLabelValues(node.Address(), methodCreateSession).Set(float64(node.AverageCreateSession().Milliseconds()))
+}
+
 // NewPrometheusService creates a new service for gathering prometheus metrics.
-func NewPrometheusService(v *viper.Viper, log *zap.Logger, handler http.Handler) *Service {
+func NewPrometheusService(v *viper.Viper, log *zap.Logger) *Service {
 	if log == nil {
 		return nil
 	}
@ -16,7 +231,7 @@ func NewPrometheusService(v *viper.Viper, log *zap.Logger, handler http.Handler)
 	return &Service{
 		Server: &http.Server{
 			Addr:    v.GetString(cfgPrometheusAddress),
-			Handler: handler,
+			Handler: promhttp.Handler(),
 		},
 		enabled:     v.GetBool(cfgPrometheusEnabled),
 		serviceType: "Prometheus",
--- a/cmd/s3-gw/app_settings.go
+++ b/cmd/s3-gw/app_settings.go
@ -3,16 +3,15 @@ package main
 import (
 	"fmt"
 	"os"
-	"path"
 	"runtime"
 	"sort"
 	"strconv"
 	"strings"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/api/resolver"
-	"git.frostfs.info/TrueCloudLab/frostfs-s3-gw/internal/version"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/pool"
+	"github.com/TrueCloudLab/frostfs-s3-gw/api/resolver"
+	"github.com/TrueCloudLab/frostfs-s3-gw/internal/version"
+	"github.com/TrueCloudLab/frostfs-sdk-go/pool"
 	"github.com/spf13/pflag"
 	"github.com/spf13/viper"
 	"go.uber.org/zap"
@ -113,15 +112,10 @@ const ( // Settings.
 	// Application.
 	cfgApplicationBuildTime = "app.build_time"

-	// Kludge.
-	cfgKludgeUseDefaultXMLNSForCompleteMultipartUpload = "kludge.use_default_xmlns_for_complete_multipart"
-	cfgKludgeCompleteMultipartUploadKeepalive          = "kludge.complete_multipart_keepalive"
-
 	// Command line args.
 	cmdHelp    = "help"
 	cmdVersion = "version"
 	cmdConfig  = "config"
-	cmdConfigDir = "config-dir"
 	cmdPProf   = "pprof"
 	cmdMetrics = "metrics"

@ -134,10 +128,6 @@ const ( // Settings.
 	// List of allowed AccessKeyID prefixes.
 	cfgAllowedAccessKeyIDPrefixes = "allowed_access_key_id_prefixes"

-	// Bucket resolving options.
-	cfgResolveBucketAllow = "resolve_bucket.allow"
-	cfgResolveBucketDeny  = "resolve_bucket.deny"
-
 	// envPrefix is an environment variables prefix used for configuration.
 	envPrefix = "S3_GW"
 )
@ -224,8 +214,7 @@ func newSettings() *viper.Viper {

 	flags.StringP(cmdWallet, "w", "", `path to the wallet`)
 	flags.String(cmdAddress, "", `address of wallet account`)
-	flags.StringArray(cmdConfig, nil, "config paths")
-	flags.String(cmdConfigDir, "", "config dir path")
+	flags.String(cmdConfig, "", "config path")

 	flags.Duration(cfgHealthcheckTimeout, defaultHealthcheckTimeout, "set timeout to check node health during rebalance")
 	flags.Duration(cfgConnectTimeout, defaultConnectTimeout, "set timeout to connect to FrostFS nodes")
@ -257,10 +246,6 @@ func newSettings() *viper.Viper {
 	v.SetDefault(cfgPProfAddress, "localhost:8085")
 	v.SetDefault(cfgPrometheusAddress, "localhost:8086")

-	// kludge
-	v.SetDefault(cfgKludgeUseDefaultXMLNSForCompleteMultipartUpload, false)
-	v.SetDefault(cfgKludgeCompleteMultipartUploadKeepalive, 10*time.Second)
-
 	// Bind flags
 	if err := bindFlags(v, flags); err != nil {
 		panic(fmt.Errorf("bind flags: %w", err))
@ -328,9 +313,11 @@ func newSettings() *viper.Viper {
 		os.Exit(0)
 	}

-	if err := readInConfig(v); err != nil {
+	if v.IsSet(cmdConfig) {
+		if err := readConfig(v); err != nil {
 			panic(err)
 		}
+	}

 	return v
 }
@ -345,9 +332,6 @@ func bindFlags(v *viper.Viper, flags *pflag.FlagSet) error {
 	if err := v.BindPFlag(cmdConfig, flags.Lookup(cmdConfig)); err != nil {
 		return err
 	}
-	if err := v.BindPFlag(cmdConfigDir, flags.Lookup(cmdConfigDir)); err != nil {
-		return err
-	}
 	if err := v.BindPFlag(cfgWalletPath, flags.Lookup(cmdWallet)); err != nil {
 		return err
 	}
@ -386,72 +370,17 @@ func bindFlags(v *viper.Viper, flags *pflag.FlagSet) error {
 	return nil
 }

-func readInConfig(v *viper.Viper) error {
-	if v.IsSet(cmdConfig) {
-		if err := readConfig(v); err != nil {
-			return err
-		}
-	}
-
-	if v.IsSet(cmdConfigDir) {
-		if err := readConfigDir(v); err != nil {
-			return err
-		}
-	}
-
-	return nil
-}
-
-func readConfigDir(v *viper.Viper) error {
-	cfgSubConfigDir := v.GetString(cmdConfigDir)
-	entries, err := os.ReadDir(cfgSubConfigDir)
-	if err != nil {
-		return err
-	}
-
-	for _, entry := range entries {
-		if entry.IsDir() {
-			continue
-		}
-		ext := path.Ext(entry.Name())
-		if ext != ".yaml" && ext != ".yml" {
-			continue
-		}
-
-		if err = mergeConfig(v, path.Join(cfgSubConfigDir, entry.Name())); err != nil {
-			return err
-		}
-	}
-
-	return nil
-}
-
 func readConfig(v *viper.Viper) error {
-	for _, fileName := range v.GetStringSlice(cmdConfig) {
-		if err := mergeConfig(v, fileName); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-func mergeConfig(v *viper.Viper, fileName string) error {
-	cfgFile, err := os.Open(fileName)
+	cfgFileName := v.GetString(cmdConfig)
+	cfgFile, err := os.Open(cfgFileName)
 	if err != nil {
 		return err
 	}
-
-	defer func() {
-		if errClose := cfgFile.Close(); errClose != nil {
-			panic(errClose)
-		}
-	}()
-
-	if err = v.MergeConfig(cfgFile); err != nil {
+	if err = v.ReadConfig(cfgFile); err != nil {
 		return err
 	}

-	return nil
+	return cfgFile.Close()
 }

 // newLogger constructs a Logger instance for the current application.
--- a/cmd/s3-gw/server.go
+++ b/cmd/s3-gw/server.go
@ -7,6 +7,8 @@ import (
 	"fmt"
 	"net"
 	"sync"
+
+	"go.uber.org/zap"
 )

 type (
@ -55,11 +57,11 @@ func (s *server) UpdateCert(certFile, keyFile string) error {
 	return s.tlsProvider.UpdateCert(certFile, keyFile)
 }

-func newServer(ctx context.Context, serverInfo ServerInfo) (*server, error) {
+func newServer(ctx context.Context, serverInfo ServerInfo, logger *zap.Logger) *server {
 	var lic net.ListenConfig
 	ln, err := lic.Listen(ctx, "tcp", serverInfo.Address)
 	if err != nil {
-		return nil, fmt.Errorf("could not prepare listener: %w", err)
+		logger.Fatal("could not prepare listener", zap.String("address", serverInfo.Address), zap.Error(err))
 	}

 	tlsProvider := &certProvider{
@ -68,7 +70,7 @@ func newServer(ctx context.Context, serverInfo ServerInfo) (*server, error) {

 	if serverInfo.TLS.Enabled {
 		if err = tlsProvider.UpdateCert(serverInfo.TLS.CertFile, serverInfo.TLS.KeyFile); err != nil {
-			return nil, fmt.Errorf("failed to update cert: %w", err)
+			logger.Fatal("failed to update cert", zap.Error(err))
 		}

 		ln = tls.NewListener(ln, &tls.Config{
@ -80,7 +82,7 @@ func newServer(ctx context.Context, serverInfo ServerInfo) (*server, error) {
 		address:     serverInfo.Address,
 		listener:    ln,
 		tlsProvider: tlsProvider,
-	}, nil
+	}
 }

 func (p *certProvider) GetCertificate(*tls.ClientHelloInfo) (*tls.Certificate, error) {
--- a/config/config.env
+++ b/config/config.env
@ -123,12 +123,3 @@ S3_GW_FROSTFS_SET_COPIES_NUMBER=0
 # List of allowed AccessKeyID prefixes
 # If not set, S3 GW will accept all AccessKeyIDs
 S3_GW_ALLOWED_ACCESS_KEY_ID_PREFIXES=Ck9BHsgKcnwfCTUSFm6pxhoNS4cBqgN2NQ8zVgPjqZDX 3stjWenX15YwYzczMr88gy3CQr4NYFBQ8P7keGzH5QFn
-
-# List of container NNS zones which are allowed or restricted to resolve with HEAD request
-S3_GW_RESOLVE_BUCKET_ALLOW=container
-# S3_GW_RESOLVE_BUCKET_DENY=
-
-# Enable using default xml namespace `http://s3.amazonaws.com/doc/2006-03-01/` when parse`CompleteMultipartUpload` xml body.
-S3_GW_KLUDGE_USE_DEFAULT_XMLNS_FOR_COMPLETE_MULTIPART=false
-# Set timeout between whitespace transmissions during CompleteMultipartUpload processing.
-S3_GW_KLUDGE_COMPLETE_MULTIPART_KEEPALIVE=10s
--- a/config/config.yaml
+++ b/config/config.yaml
@ -55,11 +55,11 @@ resolve_order:

 # Metrics
 pprof:
-  enabled: false
+  enabled: true
  address: localhost:8085

 prometheus:
-  enabled: false
+  enabled: true
  address: localhost:8086

 # Timeout to connect to a node
@ -144,14 +144,3 @@ frostfs:
 allowed_access_key_id_prefixes:
  - Ck9BHsgKcnwfCTUSFm6pxhoNS4cBqgN2NQ8zVgPjqZDX
  - 3stjWenX15YwYzczMr88gy3CQr4NYFBQ8P7keGzH5QFn
-
-resolve_bucket:
-  allow:
-    - container
-  deny:
-
-kludge:
-  # Enable using default xml namespace `http://s3.amazonaws.com/doc/2006-03-01/` when parse`CompleteMultipartUpload` xml body.
-  use_default_xmlns_for_complete_multipart: false
-  # Set timeout between whitespace transmissions during CompleteMultipartUpload processing.
-  complete_multipart_keepalive: 10s
--- a/config/dir/pprof.yaml
+++ b/config/dir/pprof.yaml
@ -1,3 +0,0 @@
-pprof:
-  enabled: true
-  address: localhost:8085
--- a/config/dir/prometheus.yaml
+++ b/config/dir/prometheus.yaml
@ -1,3 +0,0 @@
-prometheus:
-  enabled: true
-  address: localhost:8086
--- a/creds/accessbox/accessbox.go
+++ b/creds/accessbox/accessbox.go
@ -10,9 +10,9 @@ import (
 	"fmt"
 	"io"

-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/bearer"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/netmap"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/session"
+	"github.com/TrueCloudLab/frostfs-sdk-go/bearer"
+	"github.com/TrueCloudLab/frostfs-sdk-go/netmap"
+	"github.com/TrueCloudLab/frostfs-sdk-go/session"
 	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
 	"golang.org/x/crypto/chacha20poly1305"
 	"golang.org/x/crypto/hkdf"
--- a/creds/accessbox/accessbox.pb.go
+++ b/creds/accessbox/accessbox.pb.go
@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.28.1
-// 	protoc        v3.21.12
+// 	protoc        v3.15.8
 // source: creds/accessbox/accessbox.proto

 package accessbox
@ -290,12 +290,11 @@ var file_creds_accessbox_accessbox_proto_rawDesc = []byte{
 	0x0c, 0x52, 0x0b, 0x62, 0x65, 0x61, 0x72, 0x65, 0x72, 0x54, 0x6f, 0x6b, 0x65, 0x6e, 0x12, 0x24,
 	0x0a, 0x0d, 0x73, 0x65, 0x73, 0x73, 0x69, 0x6f, 0x6e, 0x54, 0x6f, 0x6b, 0x65, 0x6e, 0x73, 0x18,
 	0x03, 0x20, 0x03, 0x28, 0x0c, 0x52, 0x0d, 0x73, 0x65, 0x73, 0x73, 0x69, 0x6f, 0x6e, 0x54, 0x6f,
-	0x6b, 0x65, 0x6e, 0x73, 0x42, 0x46, 0x5a, 0x44, 0x67, 0x69, 0x74, 0x2e, 0x66, 0x72, 0x6f, 0x73,
-	0x74, 0x66, 0x73, 0x2e, 0x69, 0x6e, 0x66, 0x6f, 0x2f, 0x54, 0x72, 0x75, 0x65, 0x43, 0x6c, 0x6f,
-	0x75, 0x64, 0x4c, 0x61, 0x62, 0x2f, 0x66, 0x72, 0x6f, 0x73, 0x74, 0x66, 0x73, 0x2d, 0x73, 0x33,
-	0x2d, 0x67, 0x77, 0x2f, 0x63, 0x72, 0x65, 0x64, 0x73, 0x2f, 0x74, 0x6f, 0x6b, 0x65, 0x6e, 0x62,
-	0x6f, 0x78, 0x3b, 0x61, 0x63, 0x63, 0x65, 0x73, 0x73, 0x62, 0x6f, 0x78, 0x62, 0x06, 0x70, 0x72,
-	0x6f, 0x74, 0x6f, 0x33,
+	0x6b, 0x65, 0x6e, 0x73, 0x42, 0x40, 0x5a, 0x3e, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63,
+	0x6f, 0x6d, 0x2f, 0x54, 0x72, 0x75, 0x65, 0x43, 0x6c, 0x6f, 0x75, 0x64, 0x4c, 0x61, 0x62, 0x2f,
+	0x66, 0x72, 0x6f, 0x73, 0x74, 0x66, 0x73, 0x2d, 0x73, 0x33, 0x2d, 0x67, 0x77, 0x2f, 0x63, 0x72,
+	0x65, 0x64, 0x73, 0x2f, 0x74, 0x6f, 0x6b, 0x65, 0x6e, 0x62, 0x6f, 0x78, 0x3b, 0x61, 0x63, 0x63,
+	0x65, 0x73, 0x73, 0x62, 0x6f, 0x78, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }

 var (
--- a/Show more
+++ b/Show more