[#XX] Don't reload rpc_endpoint for resolvers

Signed-off-by: Denis Kirillov <d.kirillov@yadro.com>
[#XX] Use contract resolver from sdk
2023-10-12 18:08:11 +03:00 · 2023-10-12 18:04:22 +03:00 · 2023-10-05 17:37:34 +03:00
50 changed files with 1514 additions and 3361 deletions
--- a/.docker/Dockerfile
+++ b/.docker/Dockerfile
@ -1,9 +1,9 @@
-FROM golang:1.22-alpine AS basebuilder
+FROM golang:1.21-alpine as basebuilder
 RUN apk add --update make bash ca-certificates

-FROM basebuilder AS builder
-ENV GOGC=off
-ENV CGO_ENABLED=0
+FROM basebuilder as builder
+ENV GOGC off
+ENV CGO_ENABLED 0
 ARG BUILD=now
 ARG VERSION=dev
 ARG REPO=repository
--- a/.forgejo/workflows/builds.yml
+++ b/.forgejo/workflows/builds.yml
@ -6,7 +6,7 @@ jobs:
    runs-on: ubuntu-latest
    strategy:
      matrix:
-        go_versions: [ '1.22', '1.23' ]
+        go_versions: [ '1.20', '1.21' ]
      fail-fast: false
    steps:
      - uses: actions/checkout@v3
@ -18,6 +18,3 @@ jobs:

      - name: Build binary
        run: make
-
-      - name: Check dirty suffix
-        run: if [[ $(make version) == *"dirty"* ]]; then echo "Version has dirty suffix" && exit 1; fi
--- a/.forgejo/workflows/dco.yml
+++ b/.forgejo/workflows/dco.yml
@ -12,9 +12,9 @@ jobs:
      - name: Setup Go
        uses: actions/setup-go@v3
        with:
-          go-version: '1.23'
+          go-version: '1.21'

      - name: Run commit format checker
-        uses: https://git.frostfs.info/TrueCloudLab/dco-go@v3
+        uses: https://git.frostfs.info/TrueCloudLab/dco-go@v1
        with:
-          from: 'origin/${{ github.event.pull_request.base.ref }}'
+          from: adb95642d
--- a/.forgejo/workflows/tests.yml
+++ b/.forgejo/workflows/tests.yml
@ -10,7 +10,7 @@ jobs:
      - name: Set up Go
        uses: actions/setup-go@v3
        with:
-          go-version: '1.23'
+          go-version: '1.21'
          cache: true

      - name: Install linters
@ -24,7 +24,7 @@ jobs:
    runs-on: ubuntu-latest
    strategy:
      matrix:
-        go_versions: [ '1.22', '1.23' ]
+        go_versions: [ '1.20', '1.21' ]
      fail-fast: false
    steps:
      - uses: actions/checkout@v3
@ -38,4 +38,4 @@ jobs:
        run: make dep

      - name: Run tests
-        run: make test
+        run: make test
--- a/.forgejo/workflows/vulncheck.yml
+++ b/.forgejo/workflows/vulncheck.yml
@ -12,7 +12,7 @@ jobs:
      - name: Setup Go
        uses: actions/setup-go@v3
        with:
-          go-version: '1.22'
+          go-version: '1.21'

      - name: Install govulncheck
        run: go install golang.org/x/vuln/cmd/govulncheck@latest
--- a/.golangci.yml
+++ b/.golangci.yml
@ -12,8 +12,7 @@ run:
 # output configuration options
 output:
  # colored-line-number|line-number|json|tab|checkstyle|code-climate, default is "colored-line-number"
-  formats:
-  - format: tab
+  format: tab

 # all available settings of specific linters
 linters-settings:
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@ -30,6 +30,11 @@ repos:
    hooks:
      - id: shellcheck

+  - repo: https://github.com/golangci/golangci-lint
+    rev: v1.51.2
+    hooks:
+      - id: golangci-lint
+
  - repo: local
    hooks:
      - id: make-lint-install
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@ -3,80 +3,21 @@
 This document outlines major changes between releases.

 ## [Unreleased]
- Support percent-encoding for GET queries (#134)
-
-### Changed
- Update go version to 1.22 (#132)
-
-## [0.30.0] - Kangshung - 2024-07-22
-
-### Fixed
- Handle query unescape and invalid bearer token errors (#107)
- Fix HTTP/2 requests (#110)
-
-### Added
- Add new `reconnect_interval` config param (#100)
- Erasure coding support in placement policy (#114)
- HTTP Header canonicalizer for well-known headers (#121)
-
-### Changed
- Improve test coverage (#112, #117)
- Bumped vulnerable dependencies (#115)
- Replace extended ACL examples with policies in README (#118)
-
-### Removed
-
-## [0.29.0] - Zemu - 2024-05-27
-
-### Fixed
- Fix possibility of panic during SIGHUP (#99)
- Handle query unescape and invalid bearer token errors (#108)
- Fix log-level change on SIGHUP (#105)
-
-### Added
- Support client side object cut (#70)
-  - Add `frostfs.client_cut` config param
-  - Add `frostfs.buffer_max_size_for_put` config param
-  - Add bucket/container caching
-  - Disable homomorphic hash for PUT if it's disabled in container itself
- Add new `logger.destination` config param with journald support (#89, #104)
- Add support namespaces (#91)
-
-### Changed
- Replace atomics with mutex for reloadable params (#74)
-
-## [0.28.1] - 2024-01-24
-
-### Added
- Tree pool traversal limit (#92)
-
-### Update from 0.28.0
-See new `frostfs.tree_pool_max_attempts` config parameter.
-
-## [0.28.0] - Academy of Sciences - 2023-12-07

 ### Fixed
 - `grpc` schemas in tree configuration (#62)
- `GetSubTree` failures (#67)
- Debian packaging (#69, #90)
- Get latest version of tree node (#85)

 ### Added
 - Support dump metrics descriptions (#29)
 - Support impersonate bearer token (#40, #45)
 - Tracing support (#20, #44, #60)
 - Object name resolving with tree service (#30)
- Metrics for current endpoint status (#77)
- Soft memory limit with `runtime.soft_memory_limit` (#72)
- Add selection of the node of the latest version of the object (#85)

 ### Changed
 - Update prometheus to v1.15.0 (#35)
 - Update go version to 1.19 (#50)
 - Finish rebranding (#2)
 - Use gate key to form object owner (#66)
- Move log messages to constants (#36)
- Uploader and downloader refactor (#73)

 ### Removed
 - Drop `tree.service` param (now endpoints from `peers` section are used) (#59)
@ -120,8 +61,4 @@ This project is a fork of [NeoFS HTTP Gateway](https://github.com/nspcc-dev/neof
 To see CHANGELOG for older versions, refer to https://github.com/nspcc-dev/neofs-http-gw/blob/master/CHANGELOG.md.

 [0.27.0]: https://git.frostfs.info/TrueCloudLab/frostfs-http-gw/compare/72734ab4...v0.27.0
-[0.28.0]: https://git.frostfs.info/TrueCloudLab/frostfs-http-gw/compare/v0.27.0...v0.28.0
-[0.28.1]: https://git.frostfs.info/TrueCloudLab/frostfs-http-gw/compare/v0.28.0...v0.28.1
-[0.29.0]: https://git.frostfs.info/TrueCloudLab/frostfs-http-gw/compare/v0.28.1...v0.29.0
-[0.30.0]: https://git.frostfs.info/TrueCloudLab/frostfs-http-gw/compare/v0.29.0...v0.30.0
-[Unreleased]: https://git.frostfs.info/TrueCloudLab/frostfs-http-gw/compare/v0.30.0...master
+[Unreleased]: https://git.frostfs.info/TrueCloudLab/frostfs-http-gw/compare/v0.27.0...master
--- a/42
+++ b/42
@ -2,9 +2,9 @@

 REPO ?= $(shell go list -m)
 VERSION ?= $(shell git describe --tags --match "v*" --dirty --always --abbrev=8 2>/dev/null || cat VERSION 2>/dev/null || echo "develop")
-GO_VERSION ?= 1.22
-LINT_VERSION ?= 1.60.3
-TRUECLOUDLAB_LINT_VERSION ?= 0.0.6
+GO_VERSION ?= 1.20
+LINT_VERSION ?= 1.54.0
+TRUECLOUDLAB_LINT_VERSION ?= 0.0.2
 BUILD ?= $(shell date -u --iso=seconds)

 HUB_IMAGE ?= truecloudlab/frostfs-http-gw
@ -30,11 +30,6 @@ PKG_VERSION ?= $(shell echo $(VERSION) | sed "s/^v//" | \
 			sed "s/-/~/")-${OS_RELEASE}
 .PHONY: debpackage debclean

-FUZZ_NGFUZZ_DIR ?= ""
-FUZZ_TIMEOUT ?= 30
-FUZZ_FUNCTIONS ?= "all"
-FUZZ_AUX ?= ""
-
 # Make all binaries
 all: $(BINS)
 $(BINS):  $(DIRS) dep
@ -83,35 +78,6 @@ cover:
 	@go test -v -race ./... -coverprofile=coverage.txt -covermode=atomic
 	@go tool cover -html=coverage.txt -o coverage.html

-# Run fuzzing
-CLANG := $(shell which clang-17 2>/dev/null)
-.PHONY: check-clang all
-check-clang:
-ifeq ($(CLANG),)
-	@echo "clang-17 is not installed. Please install it before proceeding - https://apt.llvm.org/llvm.sh "
-	@exit 1
-endif
-
-.PHONY: check-ngfuzz all
-check-ngfuzz:
-	@if [ -z "$(FUZZ_NGFUZZ_DIR)" ]; then \
-		echo "Please set a variable FUZZ_NGFUZZ_DIR to specify path to the ngfuzz"; \
-		exit 1; \
-	fi
-
-.PHONY: install-fuzzing-deps
-install-fuzzing-deps: check-clang check-ngfuzz
-
-.PHONY: fuzz
-fuzz: install-fuzzing-deps  
-	@START_PATH=$$(pwd); \
-	ROOT_PATH=$$(realpath --relative-to=$(FUZZ_NGFUZZ_DIR) $$START_PATH) ; \
-	cd $(FUZZ_NGFUZZ_DIR) && \
-	./ngfuzz -clean && \
-	./ngfuzz -fuzz $(FUZZ_FUNCTIONS) -rootdir $$ROOT_PATH -timeout $(FUZZ_TIMEOUT) $(FUZZ_AUX) && \
-	./ngfuzz -report
-
-
 # Reformat code
 fmt:
 	@echo "⇒ Processing gofmt check"
@ -183,7 +149,7 @@ version:
 # Clean up
 clean:
 	rm -rf vendor
-	rm -rf $(BINDIR) 
+	rm -rf $(BINDIR)

 # Package for Debian
 debpackage:
--- a/README.md
+++ b/README.md
@ -466,13 +466,13 @@ You can always upload files to public containers (open for anyone to put
 objects into), but for restricted containers you need to explicitly allow PUT
 operations for a request signed with your HTTP Gateway keys.

-If you don't want to manage gateway's secret keys and adjust policies when
+If your don't want to manage gateway's secret keys and adjust eACL rules when
 gateway configuration changes (new gate, key rotation, etc) or you plan to use
 public services, there is an option to let your application backend (or you) to
-issue Bearer Tokens and pass them from the client via gate down to FrostFS level
+issue Bearer Tokens ans pass them from the client via gate down to FrostFS level
 to grant access.

-FrostFS Bearer Token basically is a container owner-signed policy (refer to FrostFS
+FrostFS Bearer Token basically is a container owner-signed ACL data (refer to FrostFS
 documentation for more details). There are two options to pass them to gateway:
 * "Authorization" header with "Bearer" type and base64-encoded token in
   credentials field
@ -482,31 +482,33 @@ For example, you have a mobile application frontend with a backend part storing
 data in FrostFS. When a user authorizes in the mobile app, the backend issues a FrostFS
 Bearer token and provides it to the frontend. Then, the mobile app may generate
 some data and upload it via any available FrostFS HTTP Gateway by adding
-the corresponding header to the upload request. Accessing policy protected data
+the corresponding header to the upload request. Accessing the ACL protected data
 works the same way.

 ##### Example
-In order to generate a bearer token, you need to have wallet (which will be used to sign the token)
+In order to generate a bearer token, you need to have a wallet (which will be used to sign the token) and
+the address of the sender who will do the request to FrostFS (in our case, it's a gateway wallet address).

-1. Suppose you have a container with private policy for wallet key
+Suppose we have:
+* **NhVtreTTCoqsMQV5Wp55fqnriiUCpEaKm3** (token owner (gateway address))

+Firstly, we need to encode the container id and the sender address to base64 (now it's base58).
+So use **base58** and **base64** utils.
+
+1. Encoding token owner id:
 ```
-$ frostfs-cli container create -r <endpoint> --wallet <wallet> -policy <policy> --basic-acl 0 --await
-CID: 9dfzyvq82JnFqp5svxcREf2iy6XNuifYcJPusEDnGK9Z
-
-$ frostfs-cli ape-manager add -r <endpoint> --wallet <wallet> \
-  --target-type container --target-name 9dfzyvq82JnFqp5svxcREf2iy6XNuifYcJPusEDnGK9Z \
-  --rule "allow Object.* RequestCondition:"\$Actor:publicKey"=03b09baabff3f6107c7e9acb8721a6fc5618d45b50247a314d82e548702cce8cd5 *" \
-  --chain-id <chainID>
+$ echo 'NhVtreTTCoqsMQV5Wp55fqnriiUCpEaKm3' | base58 --decode | base64
+# output: NezFK4ujidF+X7bB88uzREQzRQeAvdj3Gg==
 ```

-
-2. Form a Bearer token (10000 is lifetime expiration in epoch) to impersonate
-   HTTP Gateway request as wallet signed request and save it to **bearer.json**:
+2. Form a Bearer token (10000 is lifetime expiration in epoch) and save it to **bearer.json**:
 ```
 {
    "body": {
        "allowImpersonate": true,
+        "ownerID": {
+            "value": "NezFK4ujidF+X7bB88uzREQzRQeAvdj3Gg=="
+        },
        "lifetime": {
            "exp": "10000",
            "nbf": "0",
@ -519,7 +521,7 @@ $ frostfs-cli ape-manager add -r <endpoint> --wallet <wallet> \

 3. Sign it with the wallet:
 ```
-$ frostfs-cli util sign bearer-token --from bearer.json --to signed.json -w <wallet>
+$ frostfs-cli util sign bearer-token --from bearer.json --to signed.json -w ./wallet.json
 ```

 4. Encode to base64 to use in header:
@ -540,32 +542,47 @@ $ curl -F 'file=@cat.jpeg;filename=cat.jpeg' -H "Authorization: Bearer Ck4KKgoEC
 # }
 ```

-##### Note: Bearer Token owner
-
-You can specify exact key who can use Bearer Token (gateway wallet address).
-To do this, encode wallet address in base64 format
+##### Note
+For the token to work correctly, you need to create a container with a basic ACL that:
+1. Allow PUT operation to others
+2. Doesn't set "final" bit

+For example:
 ```
-$ echo 'NhVtreTTCoqsMQV5Wp55fqnriiUCpEaKm3' | base58 --decode | base64
-# output: NezFK4ujidF+X7bB88uzREQzRQeAvdj3Gg==
+$ frostfs-cli -w ./wallet.json --basic-acl 0x0FFFCFFF -r 192.168.130.72:8080 container create --policy "REP 3"  --await
 ```

-Then specify this value in Bearer Token Json
+To deny access to a container without a token, set the eACL rules:
+```
+$ frostfs-cli -w ./wallet.json -r 192.168.130.72:8080 container set-eacl --table eacl.json --await --cid BJeErH9MWmf52VsR1mLWKkgF3pRm3FkubYxM7TZkBP4K
+```
+
+File **eacl.json**:
 ```
 {
-    "body": {
-        "ownerID": {
-            "value": "NezFK4ujidF+X7bB88uzREQzRQeAvdj3Gg=="
-        },
-        ...
+    "version": {
+        "major": 0,
+        "minor": 0
+    },
+    "containerID": {
+        "value": "mRnZWzewzxjzIPa7Fqlfqdl3TM1KpJ0YnsXsEhafJJg="
+    },
+    "records": [
+        {
+            "operation": "PUT",
+            "action": "DENY",
+            "filters": [],
+            "targets": [
+                {
+                    "role": "OTHERS",
+                    "keys": []
+                }
+            ]
+        }
+    ]
+}
 ```

-##### Note: Policy override
-
-Instead of impersonation, you can define the set of policies that will be applied
-to the request sender. This allows to restrict access to specific operation and
-specific objects without giving full impersonation control to the token user.
-
 ### Metrics and Pprof

 If enabled, Prometheus metrics are available at `localhost:8084` endpoint
@ -575,26 +592,3 @@ See [configuration](./docs/gate-configuration.md).
 ## Credits

 Please see [CREDITS](CREDITS.md) for details.
-
-## Fuzzing
-
-To run fuzzing tests use the following command:
-
-```shell
-$ make fuzz
-```
-
-This command will install dependencies for the fuzzing process and run existing fuzzing tests.
-
-You can also use the following arguments:
-
-```
-FUZZ_TIMEOUT - time to run each fuzzing test (default 30) 
-FUZZ_FUNCTIONS - fuzzing tests that will be started (default "all")
-FUZZ_AUX - additional parameters for the fuzzer (for example, "-debug")
-FUZZ_NGFUZZ_DIR - path to ngfuzz tool
-````
-
-## Credits
-
-Please see [CREDITS](CREDITS.md) for details.
--- a/SECURITY.md
+++ b/SECURITY.md
@ -1,26 +0,0 @@
-# Security Policy
-
-
-## How To Report a Vulnerability
-
-If you think you have found a vulnerability in this repository, please report it to us through coordinated disclosure.
-
-**Please do not report security vulnerabilities through public issues, discussions, or change requests.**
-
-Instead, you can report it using one of the following ways:
-
-* Contact the [TrueCloudLab Security Team](mailto:security@frostfs.info) via email
-
-Please include as much of the information listed below as you can to help us better understand and resolve the issue:
-
-* The type of issue (e.g., buffer overflow, or cross-site scripting)
-* Affected version(s)
-* Impact of the issue, including how an attacker might exploit the issue
-* Step-by-step instructions to reproduce the issue
-* The location of the affected source code (tag/branch/commit or direct URL)
-* Full paths of source file(s) related to the manifestation of the issue
-* Any special configuration required to reproduce the issue
-* Any log files that are related to this issue (if possible)
-* Proof-of-concept or exploit code (if possible)
-
-This information will help us triage your report more quickly.
--- a/2
+++ b/2
@ -1 +1 @@
-v0.30.0
+v0.27.0
--- a/cmd/http-gw/app.go
+++ b/cmd/http-gw/app.go
@ -1,26 +1,21 @@
 package main

 import (
-	"bytes"
 	"context"
-	"errors"
+	"crypto/elliptic"
 	"fmt"
 	"net/http"
 	"os"
 	"os/signal"
 	"runtime/debug"
-	"strconv"
-	"strings"
 	"sync"
 	"syscall"
 	"time"

-	v2container "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/container"
-	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/cache"
-	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/frostfs"
+	"git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/acl"
+	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/frostfs/frostfsid"
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/frostfs/services"
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/handler"
-	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/handler/middleware"
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/logs"
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/metrics"
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/resolver"
@ -29,6 +24,7 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/tree"
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/utils"
 	"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
+	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/bearer"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/pool"
 	treepool "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/pool/tree"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
@ -41,7 +37,6 @@ import (
 	"github.com/spf13/viper"
 	"github.com/valyala/fasthttp"
 	"go.uber.org/zap"
-	"golang.org/x/exp/slices"
 )

 type (
@ -60,10 +55,8 @@ type (
 		metrics   *gateMetrics
 		services  []*metrics.Service
 		settings  *appSettings
-
-		servers       []Server
-		unbindServers []ServerInfo
-		mu            sync.RWMutex
+		servers   []Server
+		frostfsid *frostfsid.FrostFSID
 	}

 	// App is an interface for the main gateway function.
@ -84,15 +77,9 @@ type (

 	// appSettings stores reloading parameters, so it has to provide getters and setters which use RWMutex.
 	appSettings struct {
-		reconnectInterval time.Duration
-
-		mu                  sync.RWMutex
-		defaultTimestamp    bool
-		zipCompression      bool
-		clientCut           bool
-		bufferMaxSizeForPut uint64
-		namespaceHeader     string
-		defaultNamespaces   []string
+		mu               sync.RWMutex
+		defaultTimestamp bool
+		zipCompression   bool
 	}
 )

@ -153,6 +140,7 @@ func newApp(ctx context.Context, opt ...Option) App {
 	a.initAppSettings()
 	a.initResolver()
 	a.initMetrics()
+	a.initIAM(ctx)
 	a.initTracing(ctx)

 	return a
@ -182,54 +170,30 @@ func (s *appSettings) setZipCompression(val bool) {
 	s.mu.Unlock()
 }

-func (s *appSettings) ClientCut() bool {
-	s.mu.RLock()
-	defer s.mu.RUnlock()
-	return s.clientCut
-}
-
-func (s *appSettings) setClientCut(val bool) {
-	s.mu.Lock()
-	s.clientCut = val
-	s.mu.Unlock()
-}
-
-func (s *appSettings) BufferMaxSizeForPut() uint64 {
-	s.mu.RLock()
-	defer s.mu.RUnlock()
-	return s.bufferMaxSizeForPut
-}
-
-func (s *appSettings) setBufferMaxSizeForPut(val uint64) {
-	s.mu.Lock()
-	s.bufferMaxSizeForPut = val
-	s.mu.Unlock()
-}
-
 func (a *app) initAppSettings() {
-	a.settings = &appSettings{
-		reconnectInterval: fetchReconnectInterval(a.cfg),
-	}
+	a.settings = &appSettings{}
+
 	a.updateSettings()
 }

 func (a *app) initResolver() {
 	var err error
-	a.resolver, err = resolver.NewContainerResolver(a.getResolverConfig())
+	a.resolver, err = resolver.NewContainerResolver(a.getResolverOrder(), a.getResolverConfig())
 	if err != nil {
 		a.log.Fatal(logs.FailedToCreateResolver, zap.Error(err))
 	}
 }

-func (a *app) getResolverConfig() ([]string, *resolver.Config) {
-	resolveCfg := &resolver.Config{
-		FrostFS:    frostfs.NewResolverFrostFS(a.pool),
+func (a *app) getResolverConfig() *resolver.Config {
+	return &resolver.Config{
+		FrostFS:    resolver.NewFrostFSResolver(a.pool),
 		RPCAddress: a.cfg.GetString(cfgRPCEndpoint),
-		Settings:   a.settings,
 	}
+}

+func (a *app) getResolverOrder() []string {
 	order := a.cfg.GetStringSlice(cfgResolveOrder)
-	if resolveCfg.RPCAddress == "" {
+	if a.cfg.GetString(cfgRPCEndpoint) == "" {
 		order = remove(order, resolver.NNSResolver)
 		a.log.Warn(logs.ResolverNNSWontBeUsedSinceRPCEndpointIsntProvided)
 	}
@ -238,7 +202,7 @@ func (a *app) getResolverConfig() ([]string, *resolver.Config) {
 		a.log.Info(logs.ContainerResolverWillBeDisabledBecauseOfResolversResolverOrderIsEmpty)
 	}

-	return order, resolveCfg
+	return order
 }

 func (a *app) initMetrics() {
@ -247,6 +211,22 @@ func (a *app) initMetrics() {
 	a.metrics.SetHealth(metrics.HealthStatusStarting)
 }

+func (a *app) initIAM(ctx context.Context) {
+	if !a.cfg.GetBool(cfgFrostfsIDEnabled) {
+		return
+	}
+
+	var err error
+	a.frostfsid, err = frostfsid.New(ctx, frostfsid.Config{
+		RPCAddress: a.cfg.GetString(cfgRPCEndpoint),
+		Contract:   a.cfg.GetString(cfgFrostfsIDContract),
+		Key:        a.key,
+	})
+	if err != nil {
+		a.log.Fatal("init frostfsid contract", zap.Error(err))
+	}
+}
+
 func newGateMetrics(logger *zap.Logger, provider *metrics.GateMetrics, enabled bool) *gateMetrics {
 	if !enabled {
 		logger.Warn(logs.MetricsAreDisabled)
@ -408,22 +388,16 @@ func (a *app) Serve() {
 	a.startServices()
 	a.initServers(a.ctx)

-	servs := a.getServers()
-
-	for i := range servs {
+	for i := range a.servers {
 		go func(i int) {
-			a.log.Info(logs.StartingServer, zap.String("address", servs[i].Address()))
-			if err := a.webServer.Serve(servs[i].Listener()); err != nil && err != http.ErrServerClosed {
-				a.metrics.MarkUnhealthy(servs[i].Address())
+			a.log.Info(logs.StartingServer, zap.String("address", a.servers[i].Address()))
+			if err := a.webServer.Serve(a.servers[i].Listener()); err != nil && err != http.ErrServerClosed {
+				a.metrics.MarkUnhealthy(a.servers[i].Address())
 				a.log.Fatal(logs.ListenAndServe, zap.Error(err))
 			}
 		}(i)
 	}

-	if len(a.unbindServers) != 0 {
-		a.scheduleReconnect(a.ctx, a.webServer)
-	}
-
 	sigs := make(chan os.Signal, 1)
 	signal.Notify(sigs, syscall.SIGHUP)

@ -473,7 +447,7 @@ func (a *app) configReload(ctx context.Context) {
 		a.logLevel.SetLevel(lvl)
 	}

-	if err := a.resolver.UpdateResolvers(a.getResolverConfig()); err != nil {
+	if err := a.resolver.UpdateResolvers(a.getResolverOrder()); err != nil {
 		a.log.Warn(logs.FailedToUpdateResolvers, zap.Error(err))
 	}

@ -498,10 +472,6 @@ func (a *app) configReload(ctx context.Context) {
 func (a *app) updateSettings() {
 	a.settings.setDefaultTimestamp(a.cfg.GetBool(cfgUploaderHeaderEnableDefaultTimestamp))
 	a.settings.setZipCompression(a.cfg.GetBool(cfgZipCompression))
-	a.settings.setClientCut(a.cfg.GetBool(cfgClientCut))
-	a.settings.setBufferMaxSizeForPut(a.cfg.GetUint64(cfgBufferMaxSizeForPut))
-	a.settings.setNamespaceHeader(a.cfg.GetString(cfgResolveNamespaceHeader))
-	a.settings.setDefaultNamespaces(a.cfg.GetStringSlice(cfgResolveDefaultNamespaces))
 }

 func (a *app) startServices() {
@ -535,20 +505,75 @@ func (a *app) configureRouter(handler *handler.Handler) {
 		response.Error(r, "Method Not Allowed", fasthttp.StatusMethodNotAllowed)
 	}

-	r.POST("/upload/{cid}", a.logger(a.canonicalizer(a.tokenizer(a.tracer(a.reqNamespace(handler.Upload))))))
+	r.POST("/upload/{cid}", a.addMiddlewares(handler.Upload))
 	a.log.Info(logs.AddedPathUploadCid)
-	r.GET("/get/{cid}/{oid:*}", a.logger(a.canonicalizer(a.tokenizer(a.tracer(a.reqNamespace(handler.DownloadByAddressOrBucketName))))))
-	r.HEAD("/get/{cid}/{oid:*}", a.logger(a.canonicalizer(a.tokenizer(a.tracer(a.reqNamespace(handler.HeadByAddressOrBucketName))))))
+	r.GET("/get/{cid}/{oid:*}", a.addMiddlewares(handler.DownloadByAddressOrBucketName))
+	r.HEAD("/get/{cid}/{oid:*}", a.addMiddlewares(handler.HeadByAddressOrBucketName))
 	a.log.Info(logs.AddedPathGetCidOid)
-	r.GET("/get_by_attribute/{cid}/{attr_key}/{attr_val:*}", a.logger(a.canonicalizer(a.tokenizer(a.tracer(a.reqNamespace(handler.DownloadByAttribute))))))
-	r.HEAD("/get_by_attribute/{cid}/{attr_key}/{attr_val:*}", a.logger(a.canonicalizer(a.tokenizer(a.tracer(a.reqNamespace(handler.HeadByAttribute))))))
+	r.GET("/get_by_attribute/{cid}/{attr_key}/{attr_val:*}", a.addMiddlewares(handler.DownloadByAttribute))
+	r.HEAD("/get_by_attribute/{cid}/{attr_key}/{attr_val:*}", a.addMiddlewares(handler.HeadByAttribute))
 	a.log.Info(logs.AddedPathGetByAttributeCidAttrKeyAttrVal)
-	r.GET("/zip/{cid}/{prefix:*}", a.logger(a.canonicalizer(a.tokenizer(a.tracer(a.reqNamespace(handler.DownloadZipped))))))
+	r.GET("/zip/{cid}/{prefix:*}", a.addMiddlewares(handler.DownloadZipped))
 	a.log.Info(logs.AddedPathZipCidPrefix)

 	a.webServer.Handler = r.Handler
 }

+func (a *app) addMiddlewares(handler fasthttp.RequestHandler) fasthttp.RequestHandler {
+	list := []func(fasthttp.RequestHandler) fasthttp.RequestHandler{
+		a.logger,
+		a.tokenizer,
+		a.tracer,
+	}
+
+	if a.frostfsid != nil {
+		list = append(list, a.iam)
+	}
+
+	res := handler
+	for i := len(list) - 1; i >= 0; i-- {
+		res = list[i](res)
+	}
+
+	return res
+}
+
+func (a *app) iam(h fasthttp.RequestHandler) fasthttp.RequestHandler {
+	return func(req *fasthttp.RequestCtx) {
+		ctx := utils.GetContextFromRequest(req)
+		tkn, err := tokens.LoadBearerToken(ctx)
+		if err != nil || tkn == nil {
+			a.log.Debug(logs.AnonRequestSkipIAMValidation, zap.Uint64("id", req.ID()))
+			h(req)
+			return
+		}
+
+		if err = validateBearerToken(a.frostfsid, tkn); err != nil {
+			a.log.Error(logs.IAMValidationFailed, zap.Uint64("id", req.ID()), zap.Error(err))
+			response.Error(req, "iam validation failed: "+err.Error(), fasthttp.StatusForbidden)
+			return
+		}
+
+		h(req)
+	}
+}
+
+func validateBearerToken(frostfsID *frostfsid.FrostFSID, bt *bearer.Token) error {
+	m := new(acl.BearerToken)
+	bt.WriteToV2(m)
+
+	pk, err := keys.NewPublicKeyFromBytes(m.GetSignature().GetKey(), elliptic.P256())
+	if err != nil {
+		return fmt.Errorf("invalid bearer token public key: %w", err)
+	}
+
+	if err = frostfsID.ValidatePublicKey(pk); err != nil {
+		return fmt.Errorf("validation data user key failed: %w", err)
+	}
+
+	return nil
+}
+
 func (a *app) logger(h fasthttp.RequestHandler) fasthttp.RequestHandler {
 	return func(req *fasthttp.RequestCtx) {
 		a.log.Info(logs.Request, zap.String("remote", req.RemoteAddr().String()),
@ -560,45 +585,12 @@ func (a *app) logger(h fasthttp.RequestHandler) fasthttp.RequestHandler {
 	}
 }

-func (a *app) canonicalizer(h fasthttp.RequestHandler) fasthttp.RequestHandler {
-	return func(req *fasthttp.RequestCtx) {
-		// regardless of DisableHeaderNamesNormalizing setting, some headers
-		// MUST be normalized in order to process execution. They are normalized
-		// here.
-
-		toAddKeys := make([][]byte, 0, 10)
-		toAddValues := make([][]byte, 0, 10)
-		prefix := []byte(utils.UserAttributeHeaderPrefix)
-
-		req.Request.Header.VisitAll(func(k, v []byte) {
-			if bytes.HasPrefix(k, prefix) {
-				return
-			}
-			toAddKeys = append(toAddKeys, k)
-			toAddValues = append(toAddValues, v)
-		})
-
-		// this is safe to do after all headers were read into header structure
-		req.Request.Header.EnableNormalizing()
-
-		for i := range toAddKeys {
-			req.Request.Header.SetBytesKV(toAddKeys[i], toAddValues[i])
-		}
-
-		// return normalization setting back
-		req.Request.Header.DisableNormalizing()
-
-		h(req)
-	}
-}
-
 func (a *app) tokenizer(h fasthttp.RequestHandler) fasthttp.RequestHandler {
 	return func(req *fasthttp.RequestCtx) {
 		appCtx, err := tokens.StoreBearerTokenAppCtx(a.ctx, req)
 		if err != nil {
-			a.log.Error(logs.CouldNotFetchAndStoreBearerToken, zap.Uint64("id", req.ID()), zap.Error(err))
+			a.log.Error(logs.CouldNotFetchAndStoreBearerToken, zap.Error(err))
 			response.Error(req, "could not fetch and store bearer token: "+err.Error(), fasthttp.StatusBadRequest)
-			return
 		}
 		utils.SetContextToRequest(appCtx, req)
 		h(req)
@ -615,37 +607,22 @@ func (a *app) tracer(h fasthttp.RequestHandler) fasthttp.RequestHandler {
 			span.End()
 		}()

-		appCtx = treepool.SetRequestID(appCtx, strconv.FormatUint(req.ID(), 10))
-
 		utils.SetContextToRequest(appCtx, req)
 		h(req)
 	}
 }

-func (a *app) reqNamespace(h fasthttp.RequestHandler) fasthttp.RequestHandler {
-	return func(req *fasthttp.RequestCtx) {
-		appCtx := utils.GetContextFromRequest(req)
-
-		nsBytes := req.Request.Header.Peek(a.settings.NamespaceHeader())
-		appCtx = middleware.SetNamespace(appCtx, string(nsBytes))
-
-		utils.SetContextToRequest(appCtx, req)
-		h(req)
-	}
-}
-
-func (a *app) AppParams() *handler.AppParams {
-	return &handler.AppParams{
+func (a *app) AppParams() *utils.AppParams {
+	return &utils.AppParams{
 		Logger:   a.log,
-		FrostFS:  frostfs.NewFrostFS(a.pool),
+		Pool:     a.pool,
 		Owner:    a.owner,
 		Resolver: a.resolver,
-		Cache:    cache.NewBucketCache(getCacheOptions(a.cfg, a.log)),
 	}
 }

 func (a *app) initServers(ctx context.Context) {
-	serversInfo := fetchServers(a.cfg, a.log)
+	serversInfo := fetchServers(a.cfg)

 	a.servers = make([]Server, 0, len(serversInfo))
 	for _, serverInfo := range serversInfo {
@ -655,7 +632,6 @@ func (a *app) initServers(ctx context.Context) {
 		}
 		srv, err := newServer(ctx, serverInfo)
 		if err != nil {
-			a.unbindServers = append(a.unbindServers, serverInfo)
 			a.metrics.MarkUnhealthy(serverInfo.Address)
 			a.log.Warn(logs.FailedToAddServer, append(fields, zap.Error(err))...)
 			continue
@ -672,24 +648,21 @@ func (a *app) initServers(ctx context.Context) {
 }

 func (a *app) updateServers() error {
-	serversInfo := fetchServers(a.cfg, a.log)
-
-	a.mu.Lock()
-	defer a.mu.Unlock()
+	serversInfo := fetchServers(a.cfg)

 	var found bool
 	for _, serverInfo := range serversInfo {
-		ser := a.getServer(serverInfo.Address)
-		if ser != nil {
-			if serverInfo.TLS.Enabled {
-				if err := ser.UpdateCert(serverInfo.TLS.CertFile, serverInfo.TLS.KeyFile); err != nil {
-					return fmt.Errorf("failed to update tls certs: %w", err)
-				}
-				found = true
-			}
-		} else if unbind := a.updateUnbindServerInfo(serverInfo); unbind {
-			found = true
+		index := a.serverIndex(serverInfo.Address)
+		if index == -1 {
+			continue
 		}
+
+		if serverInfo.TLS.Enabled {
+			if err := a.servers[index].UpdateCert(serverInfo.TLS.CertFile, serverInfo.TLS.KeyFile); err != nil {
+				return fmt.Errorf("failed to update tls certs: %w", err)
+			}
+		}
+		found = true
 	}

 	if !found {
@ -699,29 +672,13 @@ func (a *app) updateServers() error {
 	return nil
 }

-func (a *app) getServers() []Server {
-	a.mu.RLock()
-	defer a.mu.RUnlock()
-	return a.servers
-}
-
-func (a *app) getServer(address string) Server {
+func (a *app) serverIndex(address string) int {
 	for i := range a.servers {
 		if a.servers[i].Address() == address {
-			return a.servers[i]
+			return i
 		}
 	}
-	return nil
-}
-
-func (a *app) updateUnbindServerInfo(info ServerInfo) bool {
-	for i := range a.unbindServers {
-		if a.unbindServers[i].Address == info.Address {
-			a.unbindServers[i] = info
-			return true
-		}
-	}
-	return false
+	return -1
 }

 func (a *app) initTracing(ctx context.Context) {
@ -761,93 +718,3 @@ func (a *app) setRuntimeParameters() {
 			zap.Int64("old_value", previous))
 	}
 }
-
-func (s *appSettings) NamespaceHeader() string {
-	s.mu.RLock()
-	defer s.mu.RUnlock()
-	return s.namespaceHeader
-}
-
-func (s *appSettings) setNamespaceHeader(nsHeader string) {
-	s.mu.Lock()
-	s.namespaceHeader = nsHeader
-	s.mu.Unlock()
-}
-
-func (s *appSettings) FormContainerZone(ns string) (zone string, isDefault bool) {
-	s.mu.RLock()
-	namespaces := s.defaultNamespaces
-	s.mu.RUnlock()
-	if slices.Contains(namespaces, ns) {
-		return v2container.SysAttributeZoneDefault, true
-	}
-
-	return ns + ".ns", false
-}
-
-func (s *appSettings) setDefaultNamespaces(namespaces []string) {
-	for i := range namespaces { // to be set namespaces in env variable as `HTTP_GW_RESOLVE_BUCKET_DEFAULT_NAMESPACES="" "root"`
-		namespaces[i] = strings.Trim(namespaces[i], "\"")
-	}
-
-	s.mu.Lock()
-	s.defaultNamespaces = namespaces
-	s.mu.Unlock()
-}
-
-func (a *app) scheduleReconnect(ctx context.Context, srv *fasthttp.Server) {
-	go func() {
-		t := time.NewTicker(a.settings.reconnectInterval)
-		defer t.Stop()
-		for {
-			select {
-			case <-t.C:
-				if a.tryReconnect(ctx, srv) {
-					return
-				}
-				t.Reset(a.settings.reconnectInterval)
-			case <-ctx.Done():
-				return
-			}
-		}
-	}()
-}
-
-func (a *app) tryReconnect(ctx context.Context, sr *fasthttp.Server) bool {
-	a.mu.Lock()
-	defer a.mu.Unlock()
-
-	a.log.Info(logs.ServerReconnecting)
-	var failedServers []ServerInfo
-
-	for _, serverInfo := range a.unbindServers {
-		fields := []zap.Field{
-			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(logs.ServerReconnectFailed, zap.Error(err))
-			failedServers = append(failedServers, serverInfo)
-			a.metrics.MarkUnhealthy(serverInfo.Address)
-			continue
-		}
-
-		go func() {
-			a.log.Info(logs.StartingServer, zap.String("address", srv.Address()))
-			a.metrics.MarkHealthy(serverInfo.Address)
-			if err = sr.Serve(srv.Listener()); err != nil && !errors.Is(err, http.ErrServerClosed) {
-				a.log.Warn(logs.ListenAndServe, zap.Error(err))
-				a.metrics.MarkUnhealthy(serverInfo.Address)
-			}
-		}()
-
-		a.servers = append(a.servers, srv)
-		a.log.Info(logs.ServerReconnectedSuccessfully, fields...)
-	}
-
-	a.unbindServers = failedServers
-
-	return len(a.unbindServers) == 0
-}
--- a/cmd/http-gw/integration_test.go
+++ b/cmd/http-gw/integration_test.go
@ -6,35 +6,29 @@ import (
 	"archive/zip"
 	"bytes"
 	"context"
-	"encoding/base64"
 	"encoding/json"
 	"fmt"
 	"io"
 	"mime/multipart"
 	"net/http"
-	"os"
 	"sort"
 	"testing"
 	"time"

 	containerv2 "git.frostfs.info/TrueCloudLab/frostfs-api-go/v2/container"
-	"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/pool"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
 	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
-	"github.com/nspcc-dev/neo-go/pkg/wallet"
 	"github.com/spf13/viper"
 	"github.com/stretchr/testify/require"
 	"github.com/testcontainers/testcontainers-go"
 	"github.com/testcontainers/testcontainers-go/wait"
-	"go.uber.org/zap/zapcore"
 )

 type putResponse struct {
@ -52,18 +46,11 @@ func TestIntegration(t *testing.T) {
 	rootCtx := context.Background()
 	aioImage := "truecloudlab/frostfs-aio:"
 	versions := []string{
-		"1.2.7",
-		"1.3.0",
-		"1.5.0",
+		"1.2.7", // frostfs-storage v0.36.0 RC
 	}
 	key, err := keys.NewPrivateKeyFromHex("1dd37fba80fec4e6a6f13fd708d8dcb3b29def768017052f6c930fa1c5d90bbb")
 	require.NoError(t, err)

-	file, err := os.CreateTemp("", "wallet")
-	require.NoError(t, err)
-	defer os.Remove(file.Name())
-	makeTempWallet(t, key, file.Name())
-
 	var ownerID user.ID
 	user.IDFromKey(&ownerID, key.PrivateKey.PublicKey)

@ -71,21 +58,16 @@ func TestIntegration(t *testing.T) {
 		ctx, cancel2 := context.WithCancel(rootCtx)

 		aioContainer := createDockerContainer(ctx, t, aioImage+version)
-		server, cancel := runServer(file.Name())
+		server, cancel := runServer()
 		clientPool := getPool(ctx, t, key)
 		CID, err := createContainer(ctx, t, clientPool, ownerID, version)
 		require.NoError(t, err, version)

-		token := makeBearerToken(t, key, ownerID, version)
-
 		t.Run("simple put "+version, func(t *testing.T) { simplePut(ctx, t, clientPool, CID, version) })
-		t.Run("put with bearer token in header"+version, func(t *testing.T) { putWithBearerTokenInHeader(ctx, t, clientPool, CID, token) })
-		t.Run("put with bearer token in cookie"+version, func(t *testing.T) { putWithBearerTokenInCookie(ctx, t, clientPool, CID, token) })
 		t.Run("put with duplicate keys "+version, func(t *testing.T) { putWithDuplicateKeys(t, CID) })
 		t.Run("simple get "+version, func(t *testing.T) { simpleGet(ctx, t, clientPool, ownerID, CID, version) })
 		t.Run("get by attribute "+version, func(t *testing.T) { getByAttr(ctx, t, clientPool, ownerID, CID, version) })
 		t.Run("get zip "+version, func(t *testing.T) { getZip(ctx, t, clientPool, ownerID, CID, version) })
-		t.Run("test namespaces "+version, func(t *testing.T) { checkNamespaces(ctx, t, clientPool, ownerID, CID, version) })

 		cancel()
 		server.Wait()
@ -95,14 +77,11 @@ func TestIntegration(t *testing.T) {
 	}
 }

-func runServer(pathToWallet string) (App, context.CancelFunc) {
+func runServer() (App, context.CancelFunc) {
 	cancelCtx, cancel := context.WithCancel(context.Background())

 	v := getDefaultConfig()
-	v.Set(cfgWalletPath, pathToWallet)
-	v.Set(cfgWalletPassphrase, "")
-
-	l, lvl := newStdoutLogger(zapcore.DebugLevel)
+	l, lvl := newLogger(v)
 	application := newApp(cancelCtx, WithConfig(v), WithLogger(l, lvl))
 	go application.Serve()

@ -117,38 +96,7 @@ func simplePut(ctx context.Context, t *testing.T, p *pool.Pool, CID cid.ID, vers
 	makePutRequestAndCheck(ctx, t, p, CID, url)
 }

-func putWithBearerTokenInHeader(ctx context.Context, t *testing.T, p *pool.Pool, CID cid.ID, token string) {
-	url := testHost + "/upload/" + CID.String()
-
-	request, content, attributes := makePutRequest(t, url)
-	request.Header.Set("Authorization", "Bearer "+token)
-	resp, err := http.DefaultClient.Do(request)
-	require.NoError(t, err)
-
-	checkPutResponse(ctx, t, p, CID, resp, content, attributes)
-}
-
-func putWithBearerTokenInCookie(ctx context.Context, t *testing.T, p *pool.Pool, CID cid.ID, token string) {
-	url := testHost + "/upload/" + CID.String()
-
-	request, content, attributes := makePutRequest(t, url)
-	request.AddCookie(&http.Cookie{Name: "Bearer", Value: token})
-	resp, err := http.DefaultClient.Do(request)
-	require.NoError(t, err)
-
-	checkPutResponse(ctx, t, p, CID, resp, content, attributes)
-}
-
 func makePutRequestAndCheck(ctx context.Context, t *testing.T, p *pool.Pool, cnrID cid.ID, url string) {
-	request, content, attributes := makePutRequest(t, url)
-
-	resp, err := http.DefaultClient.Do(request)
-	require.NoError(t, err)
-
-	checkPutResponse(ctx, t, p, cnrID, resp, content, attributes)
-}
-
-func makePutRequest(t *testing.T, url string) (*http.Request, string, map[string]string) {
 	content := "content of file"
 	keyAttr, valAttr := "User-Attribute", "user value"
 	attributes := map[string]string{
@ -170,10 +118,9 @@ func makePutRequest(t *testing.T, url string) (*http.Request, string, map[string
 	request.Header.Set("Content-Type", w.FormDataContentType())
 	request.Header.Set("X-Attribute-"+keyAttr, valAttr)

-	return request, content, attributes
-}
+	resp, err := http.DefaultClient.Do(request)
+	require.NoError(t, err)

-func checkPutResponse(ctx context.Context, t *testing.T, p *pool.Pool, cnrID cid.ID, resp *http.Response, content string, attributes map[string]string) {
 	defer func() {
 		err := resp.Body.Close()
 		require.NoError(t, err)
@ -391,40 +338,6 @@ func checkZip(t *testing.T, data []byte, length int64, names, contents []string)
 	}
 }

-func checkNamespaces(ctx context.Context, t *testing.T, clientPool *pool.Pool, ownerID user.ID, CID cid.ID, version string) {
-	content := "content of file"
-	attributes := map[string]string{
-		"some-attr": "some-get-value",
-	}
-
-	id := putObject(ctx, t, clientPool, ownerID, CID, content, attributes)
-
-	req, err := http.NewRequest(http.MethodGet, testHost+"/get/"+testContainerName+"/"+id.String(), nil)
-	require.NoError(t, err)
-	req.Header.Set(defaultNamespaceHeader, "")
-
-	resp, err := http.DefaultClient.Do(req)
-	require.NoError(t, err)
-	checkGetResponse(t, resp, content, attributes)
-
-	req, err = http.NewRequest(http.MethodGet, testHost+"/get/"+testContainerName+"/"+id.String(), nil)
-	require.NoError(t, err)
-	req.Header.Set(defaultNamespaceHeader, "root")
-
-	resp, err = http.DefaultClient.Do(req)
-	require.NoError(t, err)
-	checkGetResponse(t, resp, content, attributes)
-
-	req, err = http.NewRequest(http.MethodGet, testHost+"/get/"+testContainerName+"/"+id.String(), nil)
-	require.NoError(t, err)
-	req.Header.Set(defaultNamespaceHeader, "root2")
-
-	resp, err = http.DefaultClient.Do(req)
-	require.NoError(t, err)
-	require.Equal(t, http.StatusNotFound, resp.StatusCode)
-
-}
-
 func createDockerContainer(ctx context.Context, t *testing.T, image string) testcontainers.Container {
 	req := testcontainers.ContainerRequest{
 		Image:       image,
@ -507,7 +420,7 @@ func createContainer(ctx context.Context, t *testing.T, clientPool *pool.Pool, o
 func putObject(ctx context.Context, t *testing.T, clientPool *pool.Pool, ownerID user.ID, CID cid.ID, content string, attributes map[string]string) oid.ID {
 	obj := object.New()
 	obj.SetContainerID(CID)
-	obj.SetOwnerID(ownerID)
+	obj.SetOwnerID(&ownerID)

 	var attrs []object.Attribute
 	for key, val := range attributes {
@ -527,37 +440,3 @@ func putObject(ctx context.Context, t *testing.T, clientPool *pool.Pool, ownerID

 	return id
 }
-
-func makeBearerToken(t *testing.T, key *keys.PrivateKey, ownerID user.ID, version string) string {
-	tkn := new(bearer.Token)
-	tkn.ForUser(ownerID)
-	tkn.SetExp(10000)
-
-	if version == "1.2.7" {
-		tkn.SetEACLTable(*eacl.NewTable())
-	} else {
-		tkn.SetImpersonate(true)
-	}
-
-	err := tkn.Sign(key.PrivateKey)
-	require.NoError(t, err)
-
-	t64 := base64.StdEncoding.EncodeToString(tkn.Marshal())
-	require.NotEmpty(t, t64)
-
-	return t64
-}
-
-func makeTempWallet(t *testing.T, key *keys.PrivateKey, path string) {
-	w, err := wallet.NewWallet(path)
-	require.NoError(t, err)
-
-	acc := wallet.NewAccountFromPrivateKey(key)
-	err = acc.Encrypt("", w.Scrypt)
-	require.NoError(t, err)
-
-	w.AddAccount(acc)
-
-	err = w.Save()
-	require.NoError(t, err)
-}
--- a/cmd/http-gw/main.go
+++ b/cmd/http-gw/main.go
@ -9,7 +9,7 @@ import (
 func main() {
 	globalContext, _ := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
 	v := settings()
-	logger, atomicLevel := pickLogger(v)
+	logger, atomicLevel := newLogger(v)

 	application := newApp(globalContext, WithLogger(logger, atomicLevel), WithConfig(v))
 	go application.Serve()
--- a/cmd/http-gw/server.go
+++ b/cmd/http-gw/server.go
@ -68,13 +68,11 @@ 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 {
-			lnErr := ln.Close()
-			return nil, fmt.Errorf("failed to update cert (listener close: %v): %w", lnErr, err)
+			return nil, fmt.Errorf("failed to update cert: %w", err)
 		}

 		ln = tls.NewListener(ln, &tls.Config{
 			GetCertificate: tlsProvider.GetCertificate,
-			NextProtos:     []string{"h2"}, // required to enable HTTP/2 requests in `http.Serve`
 		})
 	}

--- a/cmd/http-gw/server_test.go
+++ b/cmd/http-gw/server_test.go
@ -1,119 +0,0 @@
-package main
-
-import (
-	"context"
-	"crypto/rand"
-	"crypto/rsa"
-	"crypto/tls"
-	"crypto/x509"
-	"crypto/x509/pkix"
-	"encoding/pem"
-	"fmt"
-	"math/big"
-	"net"
-	"net/http"
-	"os"
-	"path"
-	"testing"
-	"time"
-
-	"github.com/stretchr/testify/require"
-	"golang.org/x/net/http2"
-)
-
-const (
-	expHeaderKey   = "Foo"
-	expHeaderValue = "Bar"
-)
-
-func TestHTTP2TLS(t *testing.T) {
-	ctx := context.Background()
-	certPath, keyPath := prepareTestCerts(t)
-
-	srv := &http.Server{
-		Handler: http.HandlerFunc(testHandler),
-	}
-
-	tlsListener, err := newServer(ctx, ServerInfo{
-		Address: ":0",
-		TLS: ServerTLSInfo{
-			Enabled:  true,
-			CertFile: certPath,
-			KeyFile:  keyPath,
-		},
-	})
-	require.NoError(t, err)
-	port := tlsListener.Listener().Addr().(*net.TCPAddr).Port
-	addr := fmt.Sprintf("https://localhost:%d", port)
-
-	go func() {
-		_ = srv.Serve(tlsListener.Listener())
-	}()
-
-	// Server is running, now send HTTP/2 request
-
-	tlsClientConfig := &tls.Config{
-		InsecureSkipVerify: true,
-	}
-
-	cliHTTP1 := http.Client{Transport: &http.Transport{TLSClientConfig: tlsClientConfig}}
-	cliHTTP2 := http.Client{Transport: &http2.Transport{TLSClientConfig: tlsClientConfig}}
-
-	req, err := http.NewRequest("GET", addr, nil)
-	require.NoError(t, err)
-	req.Header[expHeaderKey] = []string{expHeaderValue}
-
-	resp, err := cliHTTP1.Do(req)
-	require.NoError(t, err)
-	require.Equal(t, http.StatusOK, resp.StatusCode)
-
-	resp, err = cliHTTP2.Do(req)
-	require.NoError(t, err)
-	require.Equal(t, http.StatusOK, resp.StatusCode)
-}
-
-func testHandler(resp http.ResponseWriter, req *http.Request) {
-	hdr, ok := req.Header[expHeaderKey]
-	if !ok || len(hdr) != 1 || hdr[0] != expHeaderValue {
-		resp.WriteHeader(http.StatusBadRequest)
-	} else {
-		resp.WriteHeader(http.StatusOK)
-	}
-}
-
-func prepareTestCerts(t *testing.T) (certPath, keyPath string) {
-	privateKey, err := rsa.GenerateKey(rand.Reader, 2048)
-	require.NoError(t, err)
-
-	template := x509.Certificate{
-		SerialNumber:          big.NewInt(1),
-		Subject:               pkix.Name{CommonName: "localhost"},
-		NotBefore:             time.Now(),
-		NotAfter:              time.Now().Add(time.Hour * 24 * 365),
-		KeyUsage:              x509.KeyUsageDigitalSignature | x509.KeyUsageCertSign,
-		BasicConstraintsValid: true,
-	}
-
-	derBytes, err := x509.CreateCertificate(rand.Reader, &template, &template, &privateKey.PublicKey, privateKey)
-	require.NoError(t, err)
-
-	dir := t.TempDir()
-	certPath = path.Join(dir, "cert.pem")
-	keyPath = path.Join(dir, "key.pem")
-
-	certFile, err := os.Create(certPath)
-	require.NoError(t, err)
-	defer certFile.Close()
-
-	keyFile, err := os.Create(keyPath)
-	require.NoError(t, err)
-	defer keyFile.Close()
-
-	err = pem.Encode(certFile, &pem.Block{Type: "CERTIFICATE", Bytes: derBytes})
-	require.NoError(t, err)
-
-	err = pem.Encode(keyFile, &pem.Block{Type: "RSA PRIVATE KEY", Bytes: x509.MarshalPKCS1PrivateKey(privateKey)})
-	require.NoError(t, err)
-
-	return certPath, keyPath
-}
--- a/cmd/http-gw/settings.go
+++ b/cmd/http-gw/settings.go
@ -13,28 +13,20 @@ import (
 	"strings"
 	"time"

-	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/cache"
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/logs"
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/resolver"
 	grpctracing "git.frostfs.info/TrueCloudLab/frostfs-observability/tracing/grpc"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/pool"
 	treepool "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/pool/tree"
-	"git.frostfs.info/TrueCloudLab/zapjournald"
 	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
 	"github.com/spf13/pflag"
 	"github.com/spf13/viper"
-	"github.com/ssgreg/journald"
 	"github.com/valyala/fasthttp"
 	"go.uber.org/zap"
 	"go.uber.org/zap/zapcore"
 	"google.golang.org/grpc"
 )

-const (
-	destinationStdout   = "stdout"
-	destinationJournald = "journald"
-)
-
 const (
 	defaultRebalanceTimer = 60 * time.Second
 	defaultRequestTimeout = 15 * time.Second
@ -47,19 +39,11 @@ const (

 	defaultSoftMemoryLimit = math.MaxInt64

-	defaultBufferMaxSizeForPut = 1024 * 1024 // 1mb
-
-	defaultNamespaceHeader = "X-Frostfs-Namespace"
-
-	defaultReconnectInterval = time.Minute
-
 	cfgServer      = "server"
 	cfgTLSEnabled  = "tls.enabled"
 	cfgTLSCertFile = "tls.cert_file"
 	cfgTLSKeyFile  = "tls.key_file"

-	cfgReconnectInterval = "reconnect_interval"
-
 	// Web.
 	cfgWebReadBufferSize     = "web.read_buffer_size"
 	cfgWebWriteBufferSize    = "web.write_buffer_size"
@ -87,8 +71,7 @@ const (
 	cfgPoolErrorThreshold = "pool_error_threshold"

 	// Logger.
-	cfgLoggerLevel       = "logger.level"
-	cfgLoggerDestination = "logger.destination"
+	cfgLoggerLevel = "logger.level"

 	// Wallet.
 	cfgWalletPassphrase = "wallet.passphrase"
@ -113,21 +96,9 @@ const (
 	// Runtime.
 	cfgSoftMemoryLimit = "runtime.soft_memory_limit"

-	// Enabling client side object preparing for PUT operations.
-	cfgClientCut = "frostfs.client_cut"
-	// Sets max buffer size for read payload in put operations.
-	cfgBufferMaxSizeForPut = "frostfs.buffer_max_size_for_put"
-	// Configuration of parameters of requests to FrostFS.
-	// Sets max attempt to make successful tree request.
-	cfgTreePoolMaxAttempts = "frostfs.tree_pool_max_attempts"
-
-	// Caching.
-	cfgBucketsCacheLifetime = "cache.buckets.lifetime"
-	cfgBucketsCacheSize     = "cache.buckets.size"
-
-	// Bucket resolving options.
-	cfgResolveNamespaceHeader   = "resolve_bucket.namespace_header"
-	cfgResolveDefaultNamespaces = "resolve_bucket.default_namespaces"
+	// FrostfsID.
+	cfgFrostfsIDEnabled  = "frostfsid.enabled"
+	cfgFrostfsIDContract = "frostfsid.contract"

 	// Command line args.
 	cmdHelp          = "help"
@ -186,14 +157,10 @@ func settings() *viper.Viper {

 	// logger:
 	v.SetDefault(cfgLoggerLevel, "debug")
-	v.SetDefault(cfgLoggerDestination, "stdout")

 	// pool:
 	v.SetDefault(cfgPoolErrorThreshold, defaultPoolErrorThreshold)

-	// frostfs:
-	v.SetDefault(cfgBufferMaxSizeForPut, defaultBufferMaxSizeForPut)
-
 	// web-server:
 	v.SetDefault(cfgWebReadBufferSize, 4096)
 	v.SetDefault(cfgWebWriteBufferSize, 4096)
@ -212,9 +179,8 @@ func settings() *viper.Viper {
 	v.SetDefault(cfgPprofAddress, "localhost:8083")
 	v.SetDefault(cfgPrometheusAddress, "localhost:8084")

-	// resolve bucket
-	v.SetDefault(cfgResolveNamespaceHeader, defaultNamespaceHeader)
-	v.SetDefault(cfgResolveDefaultNamespaces, []string{"", "root"})
+	// frostfsid
+	v.SetDefault(cfgFrostfsIDContract, "frostfsid.frostfs")

 	// Binding flags
 	if err := v.BindPFlag(cfgPprofEnabled, flags.Lookup(cmdPprof)); err != nil {
@ -375,25 +341,7 @@ func mergeConfig(v *viper.Viper, fileName string) error {
 	return v.MergeConfig(cfgFile)
 }

-func pickLogger(v *viper.Viper) (*zap.Logger, zap.AtomicLevel) {
-	lvl, err := getLogLevel(v)
-	if err != nil {
-		panic(err)
-	}
-
-	dest := v.GetString(cfgLoggerDestination)
-
-	switch dest {
-	case destinationStdout:
-		return newStdoutLogger(lvl)
-	case destinationJournald:
-		return newJournaldLogger(lvl)
-	default:
-		panic(fmt.Sprintf("wrong destination for logger: %s", dest))
-	}
-}
-
-// newStdoutLogger constructs a zap.Logger instance for current application.
+// newLogger constructs a zap.Logger instance for current application.
 // Panics on failure.
 //
 // Logger is built from zap's production logging configuration with:
@ -404,7 +352,12 @@ func pickLogger(v *viper.Viper) (*zap.Logger, zap.AtomicLevel) {
 // Logger records a stack trace for all messages at or above fatal level.
 //
 // See also zapcore.Level, zap.NewProductionConfig, zap.AddStacktrace.
-func newStdoutLogger(lvl zapcore.Level) (*zap.Logger, zap.AtomicLevel) {
+func newLogger(v *viper.Viper) (*zap.Logger, zap.AtomicLevel) {
+	lvl, err := getLogLevel(v)
+	if err != nil {
+		panic(err)
+	}
+
 	c := zap.NewProductionConfig()
 	c.Level = zap.NewAtomicLevelAt(lvl)
 	c.Encoding = "console"
@ -420,25 +373,6 @@ func newStdoutLogger(lvl zapcore.Level) (*zap.Logger, zap.AtomicLevel) {
 	return l, c.Level
 }

-func newJournaldLogger(lvl zapcore.Level) (*zap.Logger, zap.AtomicLevel) {
-	c := zap.NewProductionConfig()
-	c.EncoderConfig.EncodeTime = zapcore.ISO8601TimeEncoder
-	c.Level = zap.NewAtomicLevelAt(lvl)
-
-	encoder := zapjournald.NewPartialEncoder(zapcore.NewConsoleEncoder(c.EncoderConfig), zapjournald.SyslogFields)
-
-	core := zapjournald.NewCore(c.Level, encoder, &journald.Journal{}, zapjournald.SyslogFields)
-	coreWithContext := core.With([]zapcore.Field{
-		zapjournald.SyslogFacility(zapjournald.LogDaemon),
-		zapjournald.SyslogIdentifier(),
-		zapjournald.SyslogPid(),
-	})
-
-	l := zap.New(coreWithContext, zap.AddStacktrace(zap.NewAtomicLevelAt(zap.FatalLevel)))
-
-	return l, c.Level
-}
-
 func getLogLevel(v *viper.Viper) (zapcore.Level, error) {
 	var lvl zapcore.Level
 	lvlStr := v.GetString(cfgLoggerLevel)
@ -458,18 +392,8 @@ func getLogLevel(v *viper.Viper) (zapcore.Level, error) {
 	return lvl, nil
 }

-func fetchReconnectInterval(cfg *viper.Viper) time.Duration {
-	reconnect := cfg.GetDuration(cfgReconnectInterval)
-	if reconnect <= 0 {
-		reconnect = defaultReconnectInterval
-	}
-
-	return reconnect
-}
-
-func fetchServers(v *viper.Viper, log *zap.Logger) []ServerInfo {
+func fetchServers(v *viper.Viper) []ServerInfo {
 	var servers []ServerInfo
-	seen := make(map[string]struct{})

 	for i := 0; ; i++ {
 		key := cfgServer + "." + strconv.Itoa(i) + "."
@ -484,11 +408,6 @@ func fetchServers(v *viper.Viper, log *zap.Logger) []ServerInfo {
 			break
 		}

-		if _, ok := seen[serverInfo.Address]; ok {
-			log.Warn(logs.WarnDuplicateAddress, zap.String("address", serverInfo.Address))
-			continue
-		}
-		seen[serverInfo.Address] = struct{}{}
 		servers = append(servers, serverInfo)
 	}

@ -549,8 +468,6 @@ func getPools(ctx context.Context, logger *zap.Logger, cfg *viper.Viper) (*pool.
 	prm.SetLogger(logger)
 	prmTree.SetLogger(logger)

-	prmTree.SetMaxRequestAttempts(cfg.GetInt(cfgTreePoolMaxAttempts))
-
 	var apiGRPCDialOpts []grpc.DialOption
 	var treeGRPCDialOpts []grpc.DialOption
 	if cfg.GetBool(cfgTracingEnabled) {
@ -621,44 +538,3 @@ func fetchSoftMemoryLimit(cfg *viper.Viper) int64 {

 	return int64(softMemoryLimit)
 }
-
-func getCacheOptions(v *viper.Viper, l *zap.Logger) *cache.Config {
-	cacheCfg := cache.DefaultBucketConfig(l)
-
-	cacheCfg.Lifetime = fetchCacheLifetime(v, l, cfgBucketsCacheLifetime, cacheCfg.Lifetime)
-	cacheCfg.Size = fetchCacheSize(v, l, cfgBucketsCacheSize, cacheCfg.Size)
-
-	return cacheCfg
-}
-
-func fetchCacheLifetime(v *viper.Viper, l *zap.Logger, cfgEntry string, defaultValue time.Duration) time.Duration {
-	if v.IsSet(cfgEntry) {
-		lifetime := v.GetDuration(cfgEntry)
-		if lifetime <= 0 {
-			l.Error(logs.InvalidLifetimeUsingDefaultValue,
-				zap.String("parameter", cfgEntry),
-				zap.Duration("value in config", lifetime),
-				zap.Duration("default", defaultValue))
-		} else {
-			return lifetime
-		}
-	}
-
-	return defaultValue
-}
-
-func fetchCacheSize(v *viper.Viper, l *zap.Logger, cfgEntry string, defaultValue int) int {
-	if v.IsSet(cfgEntry) {
-		size := v.GetInt(cfgEntry)
-		if size <= 0 {
-			l.Error(logs.InvalidCacheSizeUsingDefaultValue,
-				zap.String("parameter", cfgEntry),
-				zap.Int("value in config", size),
-				zap.Int("default", defaultValue))
-		} else {
-			return size
-		}
-	}
-
-	return defaultValue
-}
--- a/config/config.env
+++ b/config/config.env
@ -26,9 +26,6 @@ HTTP_GW_SERVER_1_TLS_ENABLED=true
 HTTP_GW_SERVER_1_TLS_CERT_FILE=/path/to/tls/cert
 HTTP_GW_SERVER_1_TLS_KEY_FILE=/path/to/tls/key

-# How often to reconnect to the servers
-HTTP_GW_RECONNECT_INTERVAL: 1m
-
 # Nodes configuration.
 # This configuration make the gateway use the first node (grpc://s01.frostfs.devenv:8080)
 # while it's healthy. Otherwise, the gateway use the second node (grpc://s01.frostfs.devenv:8080)
@ -102,22 +99,8 @@ HTTP_GW_TRACING_EXPORTER="otlp_grpc"

 HTTP_GW_RUNTIME_SOFT_MEMORY_LIMIT=1073741824

-# Parameters of requests to FrostFS
-# This flag enables client side object preparing.
-HTTP_GW_FROSTFS_CLIENT_CUT=false
-# Sets max buffer size for read payload in put operations.
-HTTP_GW_FROSTFS_BUFFER_MAX_SIZE_FOR_PUT=1048576
-
-# Caching
-# Cache which contains mapping of bucket name to bucket info
-HTTP_GW_CACHE_BUCKETS_LIFETIME=1m
-HTTP_GW_CACHE_BUCKETS_SIZE=1000
-
-# Header to determine zone to resolve bucket name
-HTTP_GW_RESOLVE_BUCKET_NAMESPACE_HEADER=X-Frostfs-Namespace
-# Namespaces that should be handled as default
-HTTP_GW_RESOLVE_BUCKET_DEFAULT_NAMESPACES="" "root"
-
-# Max attempt to make successful tree request.
-# default value is 0 that means the number of attempts equals to number of nodes in pool.
-HTTP_GW_FROSTFS_TREE_POOL_MAX_ATTEMPTS=0
+# FrostfsID contract configuration. To enable this functionality the `rpc_endpoint` param must be also set.
+# Enables check that allow requests only users that is registered in FrostfsID contract.
+HTTP_GW_FROSTFSID_ENABLED=false
+# FrostfsID contract hash (LE) or name in NNS.
+HTTP_GW_FROSTFSID_CONTRACT=frostfsid.frostfs
--- a/config/config.yaml
+++ b/config/config.yaml
@ -16,7 +16,6 @@ tracing:

 logger:
  level: debug # Log level.
-  destination: stdout

 server:
  - address: 0.0.0.0:8080
@ -55,7 +54,6 @@ peers:
    priority: 2
    weight: 9

-reconnect_interval: 1m

 web:
  # Per-connection buffer size for requests' reading.
@ -107,23 +105,10 @@ zip:
 runtime:
  soft_memory_limit: 1gb

-# Parameters of requests to FrostFS
-frostfs:
-  # This flag enables client side object preparing.
-  client_cut: false
-  # Sets max buffer size for read payload in put operations.
-  buffer_max_size_for_put: 1048576
-  # Max attempt to make successful tree request.
-  # default value is 0 that means the number of attempts equals to number of nodes in pool.
-  tree_pool_max_attempts: 0
+# FrostfsID contract configuration. To enable this functionality the `rpc_endpoint` param must be also set.
+frostfsid:
+  # Enables check that allow requests only users that is registered in FrostfsID contract.
+  enabled: false
+  # FrostfsID contract hash (LE) or name in NNS.
+  contract: frostfsid.frostfs

-# Caching
-cache:
-  # Cache which contains mapping of bucket name to bucket info
-  buckets:
-    lifetime: 1m
-    size: 1000
-
-resolve_bucket:
-  namespace_header: X-Frostfs-Namespace
-  default_namespaces: [ "", "root" ]
--- a/docs/gate-configuration.md
+++ b/docs/gate-configuration.md
@ -40,23 +40,21 @@ $ cat http.log

 # Structure

-| Section          | Description                                                    |
-|------------------|----------------------------------------------------------------|
-| no section       | [General parameters](#general-section)                         |
-| `wallet`         | [Wallet configuration](#wallet-section)                        |
-| `peers`          | [Nodes configuration](#peers-section)                          |
-| `logger`         | [Logger configuration](#logger-section)                        |
-| `web`            | [Web configuration](#web-section)                              |
-| `server`         | [Server configuration](#server-section)                        |
-| `upload-header`  | [Upload header configuration](#upload-header-section)          |
-| `zip`            | [ZIP configuration](#zip-section)                              |
-| `pprof`          | [Pprof configuration](#pprof-section)                          |
-| `prometheus`     | [Prometheus configuration](#prometheus-section)                |
-| `tracing`        | [Tracing configuration](#tracing-section)                      |
-| `runtime`        | [Runtime configuration](#runtime-section)                      |
-| `frostfs`        | [Frostfs configuration](#frostfs-section)                      |
-| `cache`          | [Cache configuration](#cache-section)                          |
-| `resolve_bucket` | [Bucket name resolving configuration](#resolve_bucket-section) |
+| Section         | Description                                           |
+|-----------------|-------------------------------------------------------|
+| no section      | [General parameters](#general-section)                |
+| `wallet`        | [Wallet configuration](#wallet-section)               |
+| `peers`         | [Nodes configuration](#peers-section)                 |
+| `logger`        | [Logger configuration](#logger-section)               |
+| `web`           | [Web configuration](#web-section)                     |
+| `server`        | [Server configuration](#server-section)               |
+| `upload-header` | [Upload header configuration](#upload-header-section) |
+| `zip`           | [ZIP configuration](#zip-section)                     |
+| `pprof`         | [Pprof configuration](#pprof-section)                 |
+| `prometheus`    | [Prometheus configuration](#prometheus-section)       |
+| `tracing`       | [Tracing configuration](#tracing-section)             |
+| `runtime`       | [Runtime configuration](#runtime-section)             |
+| `frostfsid`     | [FrostfsID configuration](#frostfsid-section)         |


 # General section
@ -72,19 +70,17 @@ stream_timeout: 10s
 request_timeout: 5s
 rebalance_timer: 30s
 pool_error_threshold: 100
-reconnect_interval: 1m
 ```

-| Parameter              | Type       | SIGHUP reload | Default value  | Description                                                                        |
-|------------------------|------------|---------------|----------------|------------------------------------------------------------------------------------|
-| `rpc_endpoint`         | `string`   | yes           |                | The address of the RPC host to which the gateway connects to resolve bucket names. |
-| `resolve_order`        | `[]string` | yes           | `[nns, dns]`   | Order of bucket name resolvers to use.                                             |
-| `connect_timeout`      | `duration` |               | `10s`          | Timeout to connect to a node.                                                      |
-| `stream_timeout`       | `duration` |               | `10s`          | Timeout for individual operations in streaming RPC.                                |
-| `request_timeout`      | `duration` |               | `15s`          | Timeout to check node health during rebalance.                                     |
-| `rebalance_timer`      | `duration` |               | `60s`          | Interval to check node health.                                                     |
-| `pool_error_threshold` | `uint32`   |               | `100`          | The number of errors on connection after which node is considered as unhealthy.    |
-| `reconnect_interval`   | `duration` | no            | `1m`           | Listeners reconnection interval.                                                   |
+| Parameter              | Type       | SIGHUP reload | Default value | Description                                                                                                                                                                          |
+|------------------------|------------|---------------|---------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| `rpc_endpoint`         | `string`   | no            |               | The address of the RPC host to which the gateway connects to resolve bucket names and interact with frostfs contracts (required to use the `nns` resolver and `frostfsid` contract). |
+| `resolve_order`        | `[]string` | yes           | `[nns, dns]`  | Order of bucket name resolvers to use. Available resolvers: `dns`, `nns`.                                                                                                            |
+| `connect_timeout`      | `duration` | no            | `10s`         | Timeout to connect to a node.                                                                                                                                                        |
+| `stream_timeout`       | `duration` | no            | `10s`         | Timeout for individual operations in streaming RPC.                                                                                                                                  |
+| `request_timeout`      | `duration` | no            | `15s`         | Timeout to check node health during rebalance.                                                                                                                                       |
+| `rebalance_timer`      | `duration` | no            | `60s`         | Interval to check node health.                                                                                                                                                       |
+| `pool_error_threshold` | `uint32`   | no            | `100`         | The number of errors on connection after which node is considered as unhealthy.                                                                                                      |

 # `wallet` section

@ -163,13 +159,12 @@ server:
 ```yaml
 logger:
  level: debug
-  destination: stdout
 ```

-| Parameter     | Type     | SIGHUP reload | Default value | Description                                                                                        |
-|---------------|----------|---------------|---------------|----------------------------------------------------------------------------------------------------|
-| `level`       | `string` | yes           | `debug`       | Logging level.<br/>Possible values:  `debug`, `info`, `warn`, `error`, `dpanic`, `panic`, `fatal`. |
-| `destination` | `string` | no            | `stdout`      | Destination for logger: `stdout` or `journald`                                                     |
+| Parameter | Type     | SIGHUP reload | Default value | Description                                                                                        |
+|-----------|----------|---------------|---------------|----------------------------------------------------------------------------------------------------|
+| `level`   | `string` | yes           | `debug`       | Logging level.<br/>Possible values:  `debug`, `info`, `warn`, `error`, `dpanic`, `panic`, `fatal`. |
+

 # `web` section

@ -276,63 +271,17 @@ runtime:
 |---------------------|--------|---------------|---------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
 | `soft_memory_limit` | `size` | yes           | maxint64      | Soft memory limit for the runtime. Zero or no value stands for no limit. If `GOMEMLIMIT` environment variable is set, the value from the configuration file will be ignored. |

-# `frostfs` section
+# `frostfsid` section

-Contains parameters of requests to FrostFS.
+FrostfsID contract configuration. To enable this functionality the `rpc_endpoint` param must be also set.

 ```yaml
-frostfs:
-  client_cut: false
-  buffer_max_size_for_put: 1048576 # 1mb
-  tree_pool_max_attempts: 0
+frostfsid:
+  enabled: false
+  contract: frostfsid.frostfs
 ```

-| Parameter                 | Type     | SIGHUP reload | Default value | Description                                                                                                               |
-|---------------------------|----------|---------------|---------------|---------------------------------------------------------------------------------------------------------------------------|
-| `client_cut`              | `bool`   | yes           | `false`       | This flag enables client side object preparing.                                                                           |
-| `buffer_max_size_for_put` | `uint64` | yes           | `1048576`     | Sets max buffer size for read payload in put operations.                                                                  |
-| `tree_pool_max_attempts`  | `uint32` | no            | `0`           | Sets max attempt to make successful tree request. Value 0 means the number of attempts equals to number of nodes in pool. |
-
-
-### `cache` section
-
-```yaml
-cache:
-  buckets:
-    lifetime: 1m
-    size: 1000
-
-```
-
-| Parameter       | Type                              | Default value                     | Description                                                                            |
-|-----------------|-----------------------------------|-----------------------------------|----------------------------------------------------------------------------------------|
-| `buckets`       | [Cache config](#cache-subsection) | `lifetime: 60s`<br>`size: 1000`   | Cache which contains mapping of bucket name to bucket info.                            |
-
-
-#### `cache` subsection
-
-```yaml
-lifetime: 1m
-size: 1000
-```
-
-| Parameter  | Type       | Default value    | Description                   |
-|------------|------------|------------------|-------------------------------|
-| `lifetime` | `duration` | depends on cache | Lifetime of entries in cache. |
-| `size`     | `int`      | depends on cache | LRU cache size.               |
-
-
-# `resolve_bucket` section
-
-Bucket name resolving parameters from and to container ID.
-
-```yaml
-resolve_bucket:
-  namespace_header: X-Frostfs-Namespace
-  default_namespaces: [ "", "root" ]
-```
-
-| Parameter            | Type       | SIGHUP reload | Default value         | Description                                                                                                              |
-|----------------------|------------|---------------|-----------------------|--------------------------------------------------------------------------------------------------------------------------|
-| `namespace_header`   | `string`   | yes           | `X-Frostfs-Namespace` | Header to determine zone to resolve bucket name.                                                                         |
-| `default_namespaces` | `[]string` | yes           | ["","root"]           | Namespaces that should be handled as default.                                                                            |
+| Parameter  | Type     | SIGHUP reload | Default value     | Description                                                                            |
+|------------|----------|---------------|-------------------|----------------------------------------------------------------------------------------|
+| `enabled`  | `bool`   | no            | false             | Enables check that allow requests only users that is registered in FrostfsID contract. |
+| `contract` | `string` | no            | frostfsid.frostfs | FrostfsID contract hash (LE) or name in NNS.                                           |
--- a/go.mod
+++ b/go.mod
@ -1,34 +1,28 @@
 module git.frostfs.info/TrueCloudLab/frostfs-http-gw

-go 1.22
+go 1.20

 require (
-	git.frostfs.info/TrueCloudLab/frostfs-api-go/v2 v2.16.1-0.20240716113920-f517e3949164
+	git.frostfs.info/TrueCloudLab/frostfs-api-go/v2 v2.15.1-0.20230802075510-964c3edb3f44
+	git.frostfs.info/TrueCloudLab/frostfs-contract v0.18.1-0.20231004065251-4194633db7bb
 	git.frostfs.info/TrueCloudLab/frostfs-observability v0.0.0-20230531082742-c97d21411eb6
-	git.frostfs.info/TrueCloudLab/frostfs-sdk-go v0.0.0-20240718141740-ce8270568d36
-	git.frostfs.info/TrueCloudLab/zapjournald v0.0.0-20240124114243-cb2e66427d02
-	github.com/bluele/gcache v0.0.2
+	git.frostfs.info/TrueCloudLab/frostfs-sdk-go v0.0.0-20230802103237-363f153eafa6
 	github.com/fasthttp/router v1.4.1
-	github.com/nspcc-dev/neo-go v0.106.2
-	github.com/prometheus/client_golang v1.19.0
-	github.com/prometheus/client_model v0.5.0
+	github.com/nspcc-dev/neo-go v0.101.5-0.20230808195420-5fc61be5f6c5
+	github.com/prometheus/client_golang v1.15.1
+	github.com/prometheus/client_model v0.3.0
 	github.com/spf13/pflag v1.0.5
 	github.com/spf13/viper v1.15.0
-	github.com/ssgreg/journald v1.0.0
-	github.com/stretchr/testify v1.9.0
+	github.com/stretchr/testify v1.8.3
 	github.com/testcontainers/testcontainers-go v0.13.0
-	github.com/trailofbits/go-fuzz-utils v0.0.0-20230413173806-58c38daa3cb4
 	github.com/valyala/fasthttp v1.34.0
 	go.opentelemetry.io/otel v1.16.0
 	go.opentelemetry.io/otel/trace v1.16.0
-	go.uber.org/zap v1.27.0
-	golang.org/x/exp v0.0.0-20240222234643-814bf88cf225
-	golang.org/x/net v0.23.0
-	google.golang.org/grpc v1.62.0
+	go.uber.org/zap v1.26.0
+	google.golang.org/grpc v1.55.0
 )

 require (
-	git.frostfs.info/TrueCloudLab/frostfs-contract v0.19.3-0.20240621131249-49e5270f673e // indirect
 	git.frostfs.info/TrueCloudLab/frostfs-crypto v0.6.0 // indirect
 	git.frostfs.info/TrueCloudLab/hrw v1.2.1 // indirect
 	git.frostfs.info/TrueCloudLab/rfc6979 v0.4.0 // indirect
@ -56,32 +50,33 @@ require (
 	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
 	github.com/golang/protobuf v1.5.3 // indirect
-	github.com/golang/snappy v0.0.4 // indirect
-	github.com/google/uuid v1.6.0 // indirect
+	github.com/google/uuid v1.3.0 // indirect
 	github.com/gorilla/mux v1.8.0 // indirect
-	github.com/gorilla/websocket v1.5.1 // indirect
+	github.com/gorilla/websocket v1.5.0 // indirect
 	github.com/grpc-ecosystem/grpc-gateway/v2 v2.15.2 // indirect
-	github.com/hashicorp/golang-lru/v2 v2.0.7 // indirect
+	github.com/hashicorp/golang-lru v0.6.0 // indirect
+	github.com/hashicorp/golang-lru/v2 v2.0.2 // indirect
 	github.com/hashicorp/hcl v1.0.0 // indirect
 	github.com/klauspost/compress v1.16.4 // indirect
 	github.com/magiconair/properties v1.8.7 // indirect
+	github.com/matttproud/golang_protobuf_extensions v1.0.4 // indirect
 	github.com/mitchellh/mapstructure v1.5.0 // indirect
 	github.com/moby/sys/mount v0.3.2 // indirect
 	github.com/moby/sys/mountinfo v0.6.1 // indirect
 	github.com/moby/term v0.0.0-20210619224110-3f7ff695adc6 // indirect
 	github.com/morikuni/aec v1.0.0 // indirect
 	github.com/mr-tron/base58 v1.2.0 // indirect
-	github.com/nspcc-dev/go-ordered-json v0.0.0-20240301084351-0246b013f8b2 // indirect
-	github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20240521091047-78685785716d // indirect
-	github.com/nspcc-dev/rfc6979 v0.2.1 // indirect
+	github.com/nspcc-dev/go-ordered-json v0.0.0-20220111165707-25110be27d22 // indirect
+	github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20230808195420-5fc61be5f6c5 // indirect
+	github.com/nspcc-dev/rfc6979 v0.2.0 // indirect
 	github.com/opencontainers/go-digest v1.0.0 // indirect
 	github.com/opencontainers/image-spec v1.0.2 // indirect
 	github.com/opencontainers/runc v1.1.1 // indirect
 	github.com/pelletier/go-toml/v2 v2.0.6 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
-	github.com/prometheus/common v0.48.0 // indirect
-	github.com/prometheus/procfs v0.12.0 // indirect
+	github.com/prometheus/common v0.42.0 // indirect
+	github.com/prometheus/procfs v0.9.0 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
 	github.com/savsgio/gotils v0.0.0-20210617111740-97865ed5a873 // indirect
 	github.com/sirupsen/logrus v1.8.1 // indirect
@ -93,7 +88,6 @@ require (
 	github.com/twmb/murmur3 v1.1.8 // indirect
 	github.com/urfave/cli v1.22.5 // indirect
 	github.com/valyala/bytebufferpool v1.0.0 // indirect
-	go.etcd.io/bbolt v1.3.9 // indirect
 	go.opencensus.io v0.24.0 // indirect
 	go.opentelemetry.io/otel/exporters/otlp/internal/retry v1.16.0 // indirect
 	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.16.0 // indirect
@ -102,17 +96,18 @@ require (
 	go.opentelemetry.io/otel/metric v1.16.0 // indirect
 	go.opentelemetry.io/otel/sdk v1.16.0 // indirect
 	go.opentelemetry.io/proto/otlp v0.19.0 // indirect
+	go.uber.org/atomic v1.10.0 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
-	golang.org/x/crypto v0.21.0 // indirect
-	golang.org/x/sync v0.6.0 // indirect
-	golang.org/x/sys v0.18.0 // indirect
-	golang.org/x/term v0.18.0 // indirect
-	golang.org/x/text v0.14.0 // indirect
+	golang.org/x/crypto v0.9.0 // indirect
+	golang.org/x/exp v0.0.0-20230515195305-f3d0a9c9a5cc // indirect
+	golang.org/x/net v0.10.0 // indirect
+	golang.org/x/sync v0.2.0 // indirect
+	golang.org/x/sys v0.8.0 // indirect
+	golang.org/x/term v0.8.0 // indirect
+	golang.org/x/text v0.9.0 // indirect
 	golang.org/x/time v0.3.0 // indirect
-	google.golang.org/genproto v0.0.0-20240213162025-012b6fc9bca9 // indirect
-	google.golang.org/genproto/googleapis/api v0.0.0-20240205150955-31a09d347014 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20240221002015-b0ce06bbee7c // indirect
-	google.golang.org/protobuf v1.33.0 // indirect
+	google.golang.org/genproto v0.0.0-20230410155749-daa745c078e1 // indirect
+	google.golang.org/protobuf v1.30.0 // indirect
 	gopkg.in/ini.v1 v1.67.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
--- a/go.sum
+++ b/go.sum
--- a/internal/cache/buckets.go
+++ b/internal/cache/buckets.go
@ -1,72 +0,0 @@
-package cache
-
-import (
-	"fmt"
-	"time"
-
-	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/data"
-	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/logs"
-	"github.com/bluele/gcache"
-	"go.uber.org/zap"
-)
-
-// BucketCache contains cache with objects and the lifetime of cache entries.
-type BucketCache struct {
-	cache  gcache.Cache
-	logger *zap.Logger
-}
-
-// Config stores expiration params for cache.
-type Config struct {
-	Size     int
-	Lifetime time.Duration
-	Logger   *zap.Logger
-}
-
-const (
-	// DefaultBucketCacheSize is a default maximum number of entries in cache.
-	DefaultBucketCacheSize = 1e3
-	// DefaultBucketCacheLifetime is a default lifetime of entries in cache.
-	DefaultBucketCacheLifetime = time.Minute
-)
-
-// DefaultBucketConfig returns new default cache expiration values.
-func DefaultBucketConfig(logger *zap.Logger) *Config {
-	return &Config{
-		Size:     DefaultBucketCacheSize,
-		Lifetime: DefaultBucketCacheLifetime,
-		Logger:   logger,
-	}
-}
-
-// NewBucketCache creates an object of BucketCache.
-func NewBucketCache(config *Config) *BucketCache {
-	gc := gcache.New(config.Size).LRU().Expiration(config.Lifetime).Build()
-	return &BucketCache{cache: gc, logger: config.Logger}
-}
-
-// Get returns a cached object.
-func (o *BucketCache) Get(ns, bktName string) *data.BucketInfo {
-	entry, err := o.cache.Get(formKey(ns, bktName))
-	if err != nil {
-		return nil
-	}
-
-	result, ok := entry.(*data.BucketInfo)
-	if !ok {
-		o.logger.Warn(logs.InvalidCacheEntryType, zap.String("actual", fmt.Sprintf("%T", entry)),
-			zap.String("expected", fmt.Sprintf("%T", result)))
-		return nil
-	}
-
-	return result
-}
-
-// Put puts an object to cache.
-func (o *BucketCache) Put(bkt *data.BucketInfo) error {
-	return o.cache.Set(formKey(bkt.Zone, bkt.Name), bkt)
-}
-
-func formKey(ns, name string) string {
-	return name + "." + ns
-}
--- a/internal/data/bucket.go
+++ b/internal/data/bucket.go
@ -1,12 +0,0 @@
-package data
-
-import (
-	cid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id"
-)
-
-type BucketInfo struct {
-	Name                    string // container name from system attribute
-	Zone                    string // container zone from system attribute
-	CID                     cid.ID
-	HomomorphicHashDisabled bool
-}
--- a/internal/frostfs/frostfs.go
+++ b/internal/frostfs/frostfs.go
@ -1,242 +0,0 @@
-package frostfs
-
-import (
-	"context"
-	"errors"
-	"fmt"
-	"io"
-	"strings"
-
-	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/handler"
-	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/utils"
-	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container"
-	"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/pool"
-	"google.golang.org/grpc/codes"
-	"google.golang.org/grpc/status"
-)
-
-// FrostFS represents virtual connection to the FrostFS network.
-// It is used to provide an interface to dependent packages
-// which work with FrostFS.
-type FrostFS struct {
-	pool *pool.Pool
-}
-
-// NewFrostFS creates new FrostFS using provided pool.Pool.
-func NewFrostFS(p *pool.Pool) *FrostFS {
-	return &FrostFS{
-		pool: p,
-	}
-}
-
-// Container implements frostfs.FrostFS interface method.
-func (x *FrostFS) Container(ctx context.Context, layerPrm handler.PrmContainer) (*container.Container, error) {
-	prm := pool.PrmContainerGet{
-		ContainerID: layerPrm.ContainerID,
-	}
-
-	res, err := x.pool.GetContainer(ctx, prm)
-	if err != nil {
-		return nil, handleObjectError("read container via connection pool", err)
-	}
-
-	return &res, nil
-}
-
-// CreateObject implements frostfs.FrostFS interface method.
-func (x *FrostFS) CreateObject(ctx context.Context, prm handler.PrmObjectCreate) (oid.ID, error) {
-	var prmPut pool.PrmObjectPut
-	prmPut.SetHeader(*prm.Object)
-	prmPut.SetPayload(prm.Payload)
-	prmPut.SetClientCut(prm.ClientCut)
-	prmPut.WithoutHomomorphicHash(prm.WithoutHomomorphicHash)
-	prmPut.SetBufferMaxSize(prm.BufferMaxSize)
-
-	if prm.BearerToken != nil {
-		prmPut.UseBearer(*prm.BearerToken)
-	}
-
-	idObj, err := x.pool.PutObject(ctx, prmPut)
-	return idObj, handleObjectError("save object via connection pool", err)
-}
-
-// wraps io.ReadCloser and transforms Read errors related to access violation
-// to frostfs.ErrAccessDenied.
-type payloadReader struct {
-	io.ReadCloser
-}
-
-func (x payloadReader) Read(p []byte) (int, error) {
-	n, err := x.ReadCloser.Read(p)
-	if err != nil && errors.Is(err, io.EOF) {
-		return n, err
-	}
-	return n, handleObjectError("read payload", err)
-}
-
-// HeadObject implements frostfs.FrostFS interface method.
-func (x *FrostFS) HeadObject(ctx context.Context, prm handler.PrmObjectHead) (*object.Object, error) {
-	var prmHead pool.PrmObjectHead
-	prmHead.SetAddress(prm.Address)
-
-	if prm.BearerToken != nil {
-		prmHead.UseBearer(*prm.BearerToken)
-	}
-
-	res, err := x.pool.HeadObject(ctx, prmHead)
-	if err != nil {
-		return nil, handleObjectError("read object header via connection pool", err)
-	}
-
-	return &res, nil
-}
-
-// GetObject implements frostfs.FrostFS interface method.
-func (x *FrostFS) GetObject(ctx context.Context, prm handler.PrmObjectGet) (*handler.Object, error) {
-	var prmGet pool.PrmObjectGet
-	prmGet.SetAddress(prm.Address)
-
-	if prm.BearerToken != nil {
-		prmGet.UseBearer(*prm.BearerToken)
-	}
-
-	res, err := x.pool.GetObject(ctx, prmGet)
-	if err != nil {
-		return nil, handleObjectError("init full object reading via connection pool", err)
-	}
-
-	return &handler.Object{
-		Header:  res.Header,
-		Payload: res.Payload,
-	}, nil
-}
-
-// RangeObject implements frostfs.FrostFS interface method.
-func (x *FrostFS) RangeObject(ctx context.Context, prm handler.PrmObjectRange) (io.ReadCloser, error) {
-	var prmRange pool.PrmObjectRange
-	prmRange.SetAddress(prm.Address)
-	prmRange.SetOffset(prm.PayloadRange[0])
-	prmRange.SetLength(prm.PayloadRange[1])
-
-	if prm.BearerToken != nil {
-		prmRange.UseBearer(*prm.BearerToken)
-	}
-
-	res, err := x.pool.ObjectRange(ctx, prmRange)
-	if err != nil {
-		return nil, handleObjectError("init payload range reading via connection pool", err)
-	}
-
-	return payloadReader{&res}, nil
-}
-
-// SearchObjects implements frostfs.FrostFS interface method.
-func (x *FrostFS) SearchObjects(ctx context.Context, prm handler.PrmObjectSearch) (handler.ResObjectSearch, error) {
-	var prmSearch pool.PrmObjectSearch
-	prmSearch.SetContainerID(prm.Container)
-	prmSearch.SetFilters(prm.Filters)
-
-	if prm.BearerToken != nil {
-		prmSearch.UseBearer(*prm.BearerToken)
-	}
-
-	res, err := x.pool.SearchObjects(ctx, prmSearch)
-	if err != nil {
-		return nil, handleObjectError("init object search via connection pool", err)
-	}
-
-	return &res, nil
-}
-
-// GetEpochDurations implements frostfs.FrostFS interface method.
-func (x *FrostFS) GetEpochDurations(ctx context.Context) (*utils.EpochDurations, error) {
-	networkInfo, err := x.pool.NetworkInfo(ctx)
-	if err != nil {
-		return nil, err
-	}
-
-	res := &utils.EpochDurations{
-		CurrentEpoch:  networkInfo.CurrentEpoch(),
-		MsPerBlock:    networkInfo.MsPerBlock(),
-		BlockPerEpoch: networkInfo.EpochDuration(),
-	}
-
-	if res.BlockPerEpoch == 0 {
-		return nil, fmt.Errorf("EpochDuration is empty")
-	}
-	return res, nil
-}
-
-// ResolverFrostFS represents virtual connection to the FrostFS network.
-// It implements resolver.FrostFS.
-type ResolverFrostFS struct {
-	pool *pool.Pool
-}
-
-// NewResolverFrostFS creates new ResolverFrostFS using provided pool.Pool.
-func NewResolverFrostFS(p *pool.Pool) *ResolverFrostFS {
-	return &ResolverFrostFS{pool: p}
-}
-
-// SystemDNS implements resolver.FrostFS interface method.
-func (x *ResolverFrostFS) SystemDNS(ctx context.Context) (string, error) {
-	networkInfo, err := x.pool.NetworkInfo(ctx)
-	if err != nil {
-		return "", handleObjectError("read network info via client", err)
-	}
-
-	domain := networkInfo.RawNetworkParameter("SystemDNS")
-	if domain == nil {
-		return "", errors.New("system DNS parameter not found or empty")
-	}
-
-	return string(domain), nil
-}
-
-func handleObjectError(msg string, err error) error {
-	if err == nil {
-		return nil
-	}
-
-	if reason, ok := IsErrObjectAccessDenied(err); ok {
-		return fmt.Errorf("%s: %w: %s", msg, handler.ErrAccessDenied, reason)
-	}
-
-	if IsTimeoutError(err) {
-		return fmt.Errorf("%s: %w: %s", msg, handler.ErrGatewayTimeout, err.Error())
-	}
-
-	return fmt.Errorf("%s: %w", msg, err)
-}
-
-func UnwrapErr(err error) error {
-	unwrappedErr := errors.Unwrap(err)
-	for unwrappedErr != nil {
-		err = unwrappedErr
-		unwrappedErr = errors.Unwrap(err)
-	}
-
-	return err
-}
-
-func IsErrObjectAccessDenied(err error) (string, bool) {
-	err = UnwrapErr(err)
-	switch err := err.(type) {
-	default:
-		return "", false
-	case *apistatus.ObjectAccessDenied:
-		return err.Reason(), true
-	}
-}
-
-func IsTimeoutError(err error) bool {
-	if strings.Contains(err.Error(), "timeout") ||
-		errors.Is(err, context.DeadlineExceeded) {
-		return true
-	}
-
-	return status.Code(UnwrapErr(err)) == codes.DeadlineExceeded
-}
--- a/internal/frostfs/frostfsid/frostfsid.go
+++ b/internal/frostfs/frostfsid/frostfsid.go
@ -0,0 +1,87 @@
+package frostfsid
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"git.frostfs.info/TrueCloudLab/frostfs-contract/frostfsid/client"
+	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container"
+	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/ns"
+	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
+	"github.com/nspcc-dev/neo-go/pkg/rpcclient"
+	"github.com/nspcc-dev/neo-go/pkg/util"
+	"github.com/nspcc-dev/neo-go/pkg/wallet"
+)
+
+type FrostFSID struct {
+	cli *client.Client
+}
+
+type Config struct {
+	// RPCAddress is an endpoint to connect to neo rpc.
+	RPCAddress string
+
+	// Contract is hash of contract or its name in NNS.
+	Contract string
+
+	// Key is used to interact with frostfsid contract.
+	// If this is nil than random key will be generated.
+	Key *keys.PrivateKey
+}
+
+// New creates new FrostfsID contract wrapper that implements auth.FrostFSID interface.
+func New(ctx context.Context, cfg Config) (*FrostFSID, error) {
+	contractHash, err := fetchContractHash(cfg)
+	if err != nil {
+		return nil, fmt.Errorf("resolve frostfs contract hash: %w", err)
+	}
+
+	key := cfg.Key
+	if key == nil {
+		if key, err = keys.NewPrivateKey(); err != nil {
+			return nil, fmt.Errorf("generate anon private key for frostfsid: %w", err)
+		}
+	}
+
+	rpcCli, err := rpcclient.New(ctx, cfg.RPCAddress, rpcclient.Options{})
+	if err != nil {
+		return nil, fmt.Errorf("init rpc client: %w", err)
+	}
+
+	cli, err := client.New(rpcCli, wallet.NewAccountFromPrivateKey(key), contractHash, nil)
+	if err != nil {
+		return nil, fmt.Errorf("init frostfsid client: %w", err)
+	}
+
+	return &FrostFSID{
+		cli: cli,
+	}, nil
+}
+
+func (f *FrostFSID) ValidatePublicKey(key *keys.PublicKey) error {
+	_, err := f.cli.GetSubjectByKey(key)
+	return err
+}
+
+func fetchContractHash(cfg Config) (util.Uint160, error) {
+	if hash, err := util.Uint160DecodeStringLE(cfg.Contract); err == nil {
+		return hash, nil
+	}
+
+	splitName := strings.Split(cfg.Contract, ".")
+	if len(splitName) != 2 {
+		return util.Uint160{}, fmt.Errorf("invalid contract name: '%s'", cfg.Contract)
+	}
+
+	var domain container.Domain
+	domain.SetName(splitName[0])
+	domain.SetZone(splitName[1])
+
+	var nns ns.NNS
+	if err := nns.Dial(cfg.RPCAddress); err != nil {
+		return util.Uint160{}, fmt.Errorf("dial nns %s: %w", cfg.RPCAddress, err)
+	}
+
+	return nns.ResolveContractHash(domain)
+}
--- a/internal/frostfs/services/pool_wrapper.go
+++ b/internal/frostfs/services/pool_wrapper.go
@ -35,6 +35,30 @@ func (n GetNodeByPathResponseInfoWrapper) GetMeta() []tree.Meta {
 	return res
 }

+type GetSubTreeResponseBodyWrapper struct {
+	response *grpcService.GetSubTreeResponse_Body
+}
+
+func (n GetSubTreeResponseBodyWrapper) GetNodeID() uint64 {
+	return n.response.GetNodeId()
+}
+
+func (n GetSubTreeResponseBodyWrapper) GetParentID() uint64 {
+	return n.response.GetParentId()
+}
+
+func (n GetSubTreeResponseBodyWrapper) GetTimestamp() uint64 {
+	return n.response.GetTimestamp()
+}
+
+func (n GetSubTreeResponseBodyWrapper) GetMeta() []tree.Meta {
+	res := make([]tree.Meta, len(n.response.Meta))
+	for i, value := range n.response.Meta {
+		res[i] = value
+	}
+	return res
+}
+
 type PoolWrapper struct {
 	p *treepool.Pool
 }
--- a/internal/handler/download.go
+++ b/internal/handler/download.go
@ -14,9 +14,12 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/response"
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/utils"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/bearer"
+	"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/object"
 	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
+	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/pool"
 	"github.com/valyala/fasthttp"
 	"go.uber.org/zap"
 )
@ -27,7 +30,7 @@ func (h *Handler) DownloadByAddressOrBucketName(c *fasthttp.RequestCtx) {
 	var id oid.ID
 	err := id.DecodeString(test)
 	if err != nil {
-		h.byObjectName(c, h.receiveFile)
+		h.byBucketname(c, h.receiveFile)
 	} else {
 		h.byAddress(c, h.receiveFile)
 	}
@ -45,20 +48,26 @@ func (h *Handler) DownloadByAttribute(c *fasthttp.RequestCtx) {
 	h.byAttribute(c, h.receiveFile)
 }

-func (h *Handler) search(ctx context.Context, cnrID *cid.ID, key, val string, op object.SearchMatchType) (ResObjectSearch, error) {
+func (h *Handler) search(ctx context.Context, cid *cid.ID, key, val string, op object.SearchMatchType) (pool.ResObjectSearch, error) {
 	filters := object.NewSearchFilters()
 	filters.AddRootFilter()
 	filters.AddFilter(key, val, op)

-	prm := PrmObjectSearch{
-		PrmAuth: PrmAuth{
-			BearerToken: bearerToken(ctx),
-		},
-		Container: *cnrID,
-		Filters:   filters,
+	var prm pool.PrmObjectSearch
+	prm.SetContainerID(*cid)
+	prm.SetFilters(filters)
+	if btoken := bearerToken(ctx); btoken != nil {
+		prm.UseBearer(*btoken)
 	}

-	return h.frostfs.SearchObjects(ctx, prm)
+	return h.pool.SearchObjects(ctx, prm)
+}
+
+func (h *Handler) getContainer(ctx context.Context, cnrID cid.ID) (container.Container, error) {
+	var prm pool.PrmContainerGet
+	prm.SetContainerID(cnrID)
+
+	return h.pool.GetContainer(ctx, prm)
 }

 func (h *Handler) addObjectToZip(zw *zip.Writer, obj *object.Object) (io.Writer, error) {
@ -82,26 +91,32 @@ func (h *Handler) addObjectToZip(zw *zip.Writer, obj *object.Object) (io.Writer,
 // DownloadZipped handles zip by prefix requests.
 func (h *Handler) DownloadZipped(c *fasthttp.RequestCtx) {
 	scid, _ := c.UserValue("cid").(string)
-	prefix, _ := c.UserValue("prefix").(string)
-
-	prefix, err := url.QueryUnescape(prefix)
-	if err != nil {
-		h.log.Error(logs.FailedToUnescapeQuery, zap.String("cid", scid), zap.String("prefix", prefix), zap.Uint64("id", c.ID()), zap.Error(err))
-		response.Error(c, "could not unescape prefix: "+err.Error(), fasthttp.StatusBadRequest)
-		return
-	}
-
-	log := h.log.With(zap.String("cid", scid), zap.String("prefix", prefix), zap.Uint64("id", c.ID()))
+	prefix, _ := url.QueryUnescape(c.UserValue("prefix").(string))
+	log := h.log.With(zap.String("cid", scid), zap.String("prefix", prefix))

 	ctx := utils.GetContextFromRequest(c)

-	bktInfo, err := h.getBucketInfo(ctx, scid, log)
+	containerID, err := h.getContainerID(ctx, scid)
 	if err != nil {
-		logAndSendBucketError(c, log, err)
+		log.Error(logs.WrongContainerID, zap.Error(err))
+		response.Error(c, "wrong container id", fasthttp.StatusBadRequest)
 		return
 	}

-	resSearch, err := h.search(ctx, &bktInfo.CID, object.AttributeFilePath, prefix, object.MatchCommonPrefix)
+	// check if container exists here to be able to return 404 error,
+	// otherwise we get this error only in object iteration step
+	// and client get 200 OK.
+	if _, err = h.getContainer(ctx, *containerID); err != nil {
+		log.Error(logs.CouldNotCheckContainerExistence, zap.Error(err))
+		if client.IsErrContainerNotFound(err) {
+			response.Error(c, "Not Found", fasthttp.StatusNotFound)
+			return
+		}
+		response.Error(c, "could not check container existence: "+err.Error(), fasthttp.StatusBadRequest)
+		return
+	}
+
+	resSearch, err := h.search(ctx, containerID, object.AttributeFilePath, prefix, object.MatchCommonPrefix)
 	if err != nil {
 		log.Error(logs.CouldNotSearchForObjects, zap.Error(err))
 		response.Error(c, "could not search for objects: "+err.Error(), fasthttp.StatusBadRequest)
@ -123,7 +138,7 @@ func (h *Handler) DownloadZipped(c *fasthttp.RequestCtx) {
 		empty := true
 		called := false
 		btoken := bearerToken(ctx)
-		addr.SetContainer(bktInfo.CID)
+		addr.SetContainer(*containerID)

 		errIter := resSearch.Iterate(func(id oid.ID) bool {
 			called = true
@ -153,14 +168,13 @@ func (h *Handler) DownloadZipped(c *fasthttp.RequestCtx) {
 }

 func (h *Handler) zipObject(ctx context.Context, zipWriter *zip.Writer, addr oid.Address, btoken *bearer.Token, bufZip []byte) error {
-	prm := PrmObjectGet{
-		PrmAuth: PrmAuth{
-			BearerToken: btoken,
-		},
-		Address: addr,
+	var prm pool.PrmObjectGet
+	prm.SetAddress(addr)
+	if btoken != nil {
+		prm.UseBearer(*btoken)
 	}

-	resGet, err := h.frostfs.GetObject(ctx, prm)
+	resGet, err := h.pool.GetObject(ctx, prm)
 	if err != nil {
 		return fmt.Errorf("get FrostFS object: %v", err)
 	}
--- a/internal/handler/frostfs_mock.go
+++ b/internal/handler/frostfs_mock.go
@ -1,278 +0,0 @@
-package handler
-
-import (
-	"bytes"
-	"context"
-	"crypto/rand"
-	"crypto/sha256"
-	"fmt"
-	"io"
-	"strings"
-
-	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/utils"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/bearer"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/checksum"
-	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
-	"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/object"
-	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
-	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
-)
-
-type TestFrostFS struct {
-	objects    map[string]*object.Object
-	containers map[string]*container.Container
-	accessList map[string]bool
-	key        *keys.PrivateKey
-}
-
-func NewTestFrostFS(key *keys.PrivateKey) *TestFrostFS {
-	return &TestFrostFS{
-		objects:    make(map[string]*object.Object),
-		containers: make(map[string]*container.Container),
-		accessList: make(map[string]bool),
-		key:        key,
-	}
-}
-
-func (t *TestFrostFS) ContainerID(name string) (*cid.ID, error) {
-	for id, cnr := range t.containers {
-		if container.Name(*cnr) == name {
-			var cnrID cid.ID
-			return &cnrID, cnrID.DecodeString(id)
-		}
-	}
-	return nil, fmt.Errorf("not found")
-}
-
-func (t *TestFrostFS) SetContainer(cnrID cid.ID, cnr *container.Container) {
-	t.containers[cnrID.EncodeToString()] = cnr
-}
-
-// AllowUserOperation grants access to object operations.
-// Empty userID and objID means any user and object respectively.
-func (t *TestFrostFS) AllowUserOperation(cnrID cid.ID, userID user.ID, op acl.Op, objID oid.ID) {
-	t.accessList[fmt.Sprintf("%s/%s/%s/%s", cnrID, userID, op, objID)] = true
-}
-
-func (t *TestFrostFS) Container(_ context.Context, prm PrmContainer) (*container.Container, error) {
-	for k, v := range t.containers {
-		if k == prm.ContainerID.EncodeToString() {
-			return v, nil
-		}
-	}
-
-	return nil, fmt.Errorf("container not found %s", prm.ContainerID)
-}
-
-func (t *TestFrostFS) requestOwner(btoken *bearer.Token) user.ID {
-	if btoken != nil {
-		return bearer.ResolveIssuer(*btoken)
-	}
-
-	var owner user.ID
-	user.IDFromKey(&owner, t.key.PrivateKey.PublicKey)
-	return owner
-}
-
-func (t *TestFrostFS) retrieveObject(addr oid.Address, btoken *bearer.Token) (*object.Object, error) {
-	sAddr := addr.EncodeToString()
-
-	if obj, ok := t.objects[sAddr]; ok {
-		owner := t.requestOwner(btoken)
-
-		if !t.isAllowed(addr.Container(), owner, acl.OpObjectGet, addr.Object()) {
-			return nil, ErrAccessDenied
-		}
-
-		return obj, nil
-	}
-
-	return nil, fmt.Errorf("%w: %s", &apistatus.ObjectNotFound{}, addr)
-}
-
-func (t *TestFrostFS) HeadObject(_ context.Context, prm PrmObjectHead) (*object.Object, error) {
-	return t.retrieveObject(prm.Address, prm.BearerToken)
-}
-
-func (t *TestFrostFS) GetObject(_ context.Context, prm PrmObjectGet) (*Object, error) {
-	obj, err := t.retrieveObject(prm.Address, prm.BearerToken)
-	if err != nil {
-		return nil, err
-	}
-
-	return &Object{
-		Header:  *obj,
-		Payload: io.NopCloser(bytes.NewReader(obj.Payload())),
-	}, nil
-}
-
-func (t *TestFrostFS) RangeObject(_ context.Context, prm PrmObjectRange) (io.ReadCloser, error) {
-	obj, err := t.retrieveObject(prm.Address, prm.BearerToken)
-	if err != nil {
-		return nil, err
-	}
-
-	off := prm.PayloadRange[0]
-	payload := obj.Payload()[off : off+prm.PayloadRange[1]]
-	return io.NopCloser(bytes.NewReader(payload)), nil
-}
-
-func (t *TestFrostFS) CreateObject(_ context.Context, prm PrmObjectCreate) (oid.ID, error) {
-	b := make([]byte, 32)
-	if _, err := io.ReadFull(rand.Reader, b); err != nil {
-		return oid.ID{}, err
-	}
-	var id oid.ID
-	id.SetSHA256(sha256.Sum256(b))
-	prm.Object.SetID(id)
-
-	attrs := prm.Object.Attributes()
-	if prm.ClientCut {
-		a := object.NewAttribute()
-		a.SetKey("s3-client-cut")
-		a.SetValue("true")
-		attrs = append(attrs, *a)
-	}
-
-	prm.Object.SetAttributes(attrs...)
-
-	if prm.Payload != nil {
-		all, err := io.ReadAll(prm.Payload)
-		if err != nil {
-			return oid.ID{}, err
-		}
-		prm.Object.SetPayload(all)
-		prm.Object.SetPayloadSize(uint64(len(all)))
-		var hash checksum.Checksum
-		checksum.Calculate(&hash, checksum.SHA256, all)
-		prm.Object.SetPayloadChecksum(hash)
-	}
-
-	cnrID, _ := prm.Object.ContainerID()
-	objID, _ := prm.Object.ID()
-
-	owner := t.requestOwner(prm.BearerToken)
-
-	if !t.isAllowed(cnrID, owner, acl.OpObjectPut, objID) {
-		return oid.ID{}, ErrAccessDenied
-	}
-
-	addr := newAddress(cnrID, objID)
-	t.objects[addr.EncodeToString()] = prm.Object
-	return objID, nil
-}
-
-type resObjectSearchMock struct {
-	res []oid.ID
-}
-
-func (r *resObjectSearchMock) Read(buf []oid.ID) (int, error) {
-	for i := range buf {
-		if i > len(r.res)-1 {
-			return len(r.res), io.EOF
-		}
-		buf[i] = r.res[i]
-	}
-
-	r.res = r.res[len(buf):]
-
-	return len(buf), nil
-}
-
-func (r *resObjectSearchMock) Iterate(f func(oid.ID) bool) error {
-	for _, id := range r.res {
-		if f(id) {
-			return nil
-		}
-	}
-
-	return nil
-}
-
-func (r *resObjectSearchMock) Close() {}
-
-func (t *TestFrostFS) SearchObjects(_ context.Context, prm PrmObjectSearch) (ResObjectSearch, error) {
-	if !t.isAllowed(prm.Container, t.requestOwner(prm.BearerToken), acl.OpObjectSearch, oid.ID{}) {
-		return nil, ErrAccessDenied
-	}
-
-	cidStr := prm.Container.EncodeToString()
-	var res []oid.ID
-
-	if len(prm.Filters) == 1 { // match root filter
-		for k, v := range t.objects {
-			if strings.Contains(k, cidStr) {
-				id, _ := v.ID()
-				res = append(res, id)
-			}
-		}
-		return &resObjectSearchMock{res: res}, nil
-	}
-
-	filter := prm.Filters[1]
-	if len(prm.Filters) != 2 ||
-		filter.Operation() != object.MatchCommonPrefix && filter.Operation() != object.MatchStringEqual {
-		return nil, fmt.Errorf("usupported filters")
-	}
-
-	for k, v := range t.objects {
-		if strings.Contains(k, cidStr) && isMatched(v.Attributes(), filter) {
-			id, _ := v.ID()
-			res = append(res, id)
-		}
-	}
-
-	return &resObjectSearchMock{res: res}, nil
-}
-
-func isMatched(attributes []object.Attribute, filter object.SearchFilter) bool {
-	for _, attr := range attributes {
-		if attr.Key() == filter.Header() {
-			switch filter.Operation() {
-			case object.MatchStringEqual:
-				return attr.Value() == filter.Value()
-			case object.MatchCommonPrefix:
-				return strings.HasPrefix(attr.Value(), filter.Value())
-			default:
-				return false
-			}
-		}
-	}
-
-	return false
-}
-
-func (t *TestFrostFS) GetEpochDurations(context.Context) (*utils.EpochDurations, error) {
-	return &utils.EpochDurations{
-		CurrentEpoch:  10,
-		MsPerBlock:    1000,
-		BlockPerEpoch: 100,
-	}, nil
-}
-
-func (t *TestFrostFS) isAllowed(cnrID cid.ID, userID user.ID, op acl.Op, objID oid.ID) bool {
-	keysToCheck := []string{
-		fmt.Sprintf("%s/%s/%s/%s", cnrID, userID, op, objID),
-		fmt.Sprintf("%s/%s/%s/%s", cnrID, userID, op, oid.ID{}),
-		fmt.Sprintf("%s/%s/%s/%s", cnrID, user.ID{}, op, objID),
-		fmt.Sprintf("%s/%s/%s/%s", cnrID, user.ID{}, op, oid.ID{}),
-	}
-
-	for _, key := range keysToCheck {
-		if t.accessList[key] {
-			return true
-		}
-	}
-	return false
-}
-
-func newAddress(cnr cid.ID, obj oid.ID) oid.Address {
-	var addr oid.Address
-	addr.SetContainer(cnr)
-	addr.SetObject(obj)
-	return addr
-}
--- a/internal/handler/handler.go
+++ b/internal/handler/handler.go
@ -3,24 +3,18 @@ package handler
 import (
 	"context"
 	"errors"
-	"fmt"
 	"io"
 	"net/url"
-	"strings"

-	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/cache"
-	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/data"
-	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/handler/middleware"
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/logs"
+	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/resolver"
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/response"
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/tree"
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/utils"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/bearer"
-	apistatus "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client/status"
-	"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/object"
 	oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
+	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/pool"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
 	"github.com/valyala/fasthttp"
 	"go.uber.org/zap"
@ -29,152 +23,39 @@ import (
 type Config interface {
 	DefaultTimestamp() bool
 	ZipCompression() bool
-	ClientCut() bool
-	BufferMaxSizeForPut() uint64
-	NamespaceHeader() string
-}
-
-// PrmContainer groups parameters of FrostFS.Container operation.
-type PrmContainer struct {
-	// Container identifier.
-	ContainerID cid.ID
-}
-
-// PrmAuth groups authentication parameters for the FrostFS operation.
-type PrmAuth struct {
-	// Bearer token to be used for the operation. Overlaps PrivateKey. Optional.
-	BearerToken *bearer.Token
-}
-
-// PrmObjectHead groups parameters of FrostFS.HeadObject operation.
-type PrmObjectHead struct {
-	// Authentication parameters.
-	PrmAuth
-
-	// Address to read the object header from.
-	Address oid.Address
-}
-
-// PrmObjectGet groups parameters of FrostFS.GetObject operation.
-type PrmObjectGet struct {
-	// Authentication parameters.
-	PrmAuth
-
-	// Address to read the object header from.
-	Address oid.Address
-}
-
-// PrmObjectRange groups parameters of FrostFS.RangeObject operation.
-type PrmObjectRange struct {
-	// Authentication parameters.
-	PrmAuth
-
-	// Address to read the object header from.
-	Address oid.Address
-
-	// Offset-length range of the object payload to be read.
-	PayloadRange [2]uint64
-}
-
-// Object represents FrostFS object.
-type Object struct {
-	// Object header (doesn't contain payload).
-	Header object.Object
-
-	// Object payload part encapsulated in io.Reader primitive.
-	// Returns ErrAccessDenied on read access violation.
-	Payload io.ReadCloser
-}
-
-// PrmObjectCreate groups parameters of FrostFS.CreateObject operation.
-type PrmObjectCreate struct {
-	// Authentication parameters.
-	PrmAuth
-
-	Object *object.Object
-
-	// Object payload encapsulated in io.Reader primitive.
-	Payload io.Reader
-
-	// Enables client side object preparing.
-	ClientCut bool
-
-	// Disables using Tillich-Zémor hash for payload.
-	WithoutHomomorphicHash bool
-
-	// Sets max buffer size to read payload.
-	BufferMaxSize uint64
-}
-
-// PrmObjectSearch groups parameters of FrostFS.sear SearchObjects operation.
-type PrmObjectSearch struct {
-	// Authentication parameters.
-	PrmAuth
-
-	// Container to select the objects from.
-	Container cid.ID
-
-	Filters object.SearchFilters
-}
-
-type ResObjectSearch interface {
-	Read(buf []oid.ID) (int, error)
-	Iterate(f func(oid.ID) bool) error
-	Close()
-}
-
-var (
-	// ErrAccessDenied is returned from FrostFS in case of access violation.
-	ErrAccessDenied = errors.New("access denied")
-	// ErrGatewayTimeout is returned from FrostFS in case of timeout, deadline exceeded etc.
-	ErrGatewayTimeout = errors.New("gateway timeout")
-)
-
-// FrostFS represents virtual connection to FrostFS network.
-type FrostFS interface {
-	Container(context.Context, PrmContainer) (*container.Container, error)
-	HeadObject(context.Context, PrmObjectHead) (*object.Object, error)
-	GetObject(context.Context, PrmObjectGet) (*Object, error)
-	RangeObject(context.Context, PrmObjectRange) (io.ReadCloser, error)
-	CreateObject(context.Context, PrmObjectCreate) (oid.ID, error)
-	SearchObjects(context.Context, PrmObjectSearch) (ResObjectSearch, error)
-	utils.EpochInfoFetcher
-}
-
-type ContainerResolver interface {
-	Resolve(ctx context.Context, name string) (*cid.ID, error)
 }

 type Handler struct {
 	log               *zap.Logger
-	frostfs           FrostFS
+	pool              *pool.Pool
 	ownerID           *user.ID
 	config            Config
-	containerResolver ContainerResolver
+	containerResolver *resolver.ContainerResolver
 	tree              *tree.Tree
-	cache             *cache.BucketCache
 }

-type AppParams struct {
-	Logger   *zap.Logger
-	FrostFS  FrostFS
-	Owner    *user.ID
-	Resolver ContainerResolver
-	Cache    *cache.BucketCache
-}
-
-func New(params *AppParams, config Config, tree *tree.Tree) *Handler {
+func New(params *utils.AppParams, config Config, tree *tree.Tree) *Handler {
 	return &Handler{
 		log:               params.Logger,
-		frostfs:           params.FrostFS,
+		pool:              params.Pool,
 		ownerID:           params.Owner,
 		config:            config,
 		containerResolver: params.Resolver,
 		tree:              tree,
-		cache:             params.Cache,
 	}
 }

+// getContainerID decode container id, if it's not a valid container id
+// then trey to resolve name using provided resolver.
+func (h *Handler) getContainerID(ctx context.Context, containerID string) (*cid.ID, error) {
+	cnrID := new(cid.ID)
+	err := cnrID.DecodeString(containerID)
+	if err != nil {
+		cnrID, err = h.containerResolver.Resolve(ctx, containerID)
+	}
+	return cnrID, err
+}
+
 // byAddress is a wrapper for function (e.g. request.headObject, request.receiveFile) that
 // prepares request and object address to it.
 func (h *Handler) byAddress(c *fasthttp.RequestCtx, f func(context.Context, request, oid.Address)) {
@ -186,9 +67,10 @@ func (h *Handler) byAddress(c *fasthttp.RequestCtx, f func(context.Context, requ

 	ctx := utils.GetContextFromRequest(c)

-	bktInfo, err := h.getBucketInfo(ctx, idCnr, log)
+	cnrID, err := h.getContainerID(ctx, idCnr)
 	if err != nil {
-		logAndSendBucketError(c, log, err)
+		log.Error(logs.WrongContainerID, zap.Error(err))
+		response.Error(c, "wrong container id", fasthttp.StatusBadRequest)
 		return
 	}

@ -200,43 +82,33 @@ func (h *Handler) byAddress(c *fasthttp.RequestCtx, f func(context.Context, requ
 	}

 	var addr oid.Address
-	addr.SetContainer(bktInfo.CID)
+	addr.SetContainer(*cnrID)
 	addr.SetObject(*objID)

 	f(ctx, *h.newRequest(c, log), addr)
 }

-// byObjectName is a wrapper for function (e.g. request.headObject, request.receiveFile) that
+// byBucketname is a wrapper for function (e.g. request.headObject, request.receiveFile) that
 // prepares request and object address to it.
-func (h *Handler) byObjectName(req *fasthttp.RequestCtx, f func(context.Context, request, oid.Address)) {
+func (h *Handler) byBucketname(req *fasthttp.RequestCtx, f func(context.Context, request, oid.Address)) {
 	var (
 		bucketname = req.UserValue("cid").(string)
 		key        = req.UserValue("oid").(string)
 		log        = h.log.With(zap.String("bucketname", bucketname), zap.String("key", key))
 	)

-	unescapedKey, err := url.QueryUnescape(key)
-	if err != nil {
-		logAndSendBucketError(req, log, err)
-		return
-	}
-
 	ctx := utils.GetContextFromRequest(req)

-	bktInfo, err := h.getBucketInfo(ctx, bucketname, log)
+	cnrID, err := h.getContainerID(ctx, bucketname)
 	if err != nil {
-		logAndSendBucketError(req, log, err)
+		log.Error(logs.WrongContainerID, zap.Error(err))
+		response.Error(req, "wrong container id", fasthttp.StatusBadRequest)
 		return
 	}

-	foundOid, err := h.tree.GetLatestVersion(ctx, &bktInfo.CID, unescapedKey)
+	foundOid, err := h.tree.GetLatestVersion(ctx, cnrID, key)
 	if err != nil {
-		if errors.Is(err, tree.ErrNodeAccessDenied) {
-			response.Error(req, "Access Denied", fasthttp.StatusForbidden)
-			return
-		}
-		log.Error(logs.GetLatestObjectVersion, zap.Error(err))
-
+		log.Error(logs.ObjectWasntFound, zap.Error(err))
 		response.Error(req, "object wasn't found", fasthttp.StatusNotFound)
 		return
 	}
@ -247,7 +119,7 @@ func (h *Handler) byObjectName(req *fasthttp.RequestCtx, f func(context.Context,
 	}

 	var addr oid.Address
-	addr.SetContainer(bktInfo.CID)
+	addr.SetContainer(*cnrID)
 	addr.SetObject(foundOid.OID)

 	f(ctx, *h.newRequest(req, log), addr)
@ -255,35 +127,23 @@ func (h *Handler) byObjectName(req *fasthttp.RequestCtx, f func(context.Context,

 // byAttribute is a wrapper similar to byAddress.
 func (h *Handler) byAttribute(c *fasthttp.RequestCtx, f func(context.Context, request, oid.Address)) {
-	scid, _ := c.UserValue("cid").(string)
-	key, _ := c.UserValue("attr_key").(string)
-	val, _ := c.UserValue("attr_val").(string)
-
-	key, err := url.QueryUnescape(key)
-	if err != nil {
-		h.log.Error(logs.FailedToUnescapeQuery, zap.String("cid", scid), zap.String("attr_key", key), zap.Uint64("id", c.ID()), zap.Error(err))
-		response.Error(c, "could not unescape attr_key: "+err.Error(), fasthttp.StatusBadRequest)
-		return
-	}
-
-	val, err = url.QueryUnescape(val)
-	if err != nil {
-		h.log.Error(logs.FailedToUnescapeQuery, zap.String("cid", scid), zap.String("attr_val", val), zap.Uint64("id", c.ID()), zap.Error(err))
-		response.Error(c, "could not unescape attr_val: "+err.Error(), fasthttp.StatusBadRequest)
-		return
-	}
-
-	log := h.log.With(zap.String("cid", scid), zap.String("attr_key", key), zap.String("attr_val", val))
+	var (
+		scid, _ = c.UserValue("cid").(string)
+		key, _  = url.QueryUnescape(c.UserValue("attr_key").(string))
+		val, _  = url.QueryUnescape(c.UserValue("attr_val").(string))
+		log     = h.log.With(zap.String("cid", scid), zap.String("attr_key", key), zap.String("attr_val", val))
+	)

 	ctx := utils.GetContextFromRequest(c)

-	bktInfo, err := h.getBucketInfo(ctx, scid, log)
+	containerID, err := h.getContainerID(ctx, scid)
 	if err != nil {
-		logAndSendBucketError(c, log, err)
+		log.Error(logs.WrongContainerID, zap.Error(err))
+		response.Error(c, "wrong container id", fasthttp.StatusBadRequest)
 		return
 	}

-	res, err := h.search(ctx, &bktInfo.CID, key, val, object.MatchStringEqual)
+	res, err := h.search(ctx, containerID, key, val, object.MatchStringEqual)
 	if err != nil {
 		log.Error(logs.CouldNotSearchForObjects, zap.Error(err))
 		response.Error(c, "could not search for objects: "+err.Error(), fasthttp.StatusBadRequest)
@ -308,74 +168,8 @@ func (h *Handler) byAttribute(c *fasthttp.RequestCtx, f func(context.Context, re
 	}

 	var addrObj oid.Address
-	addrObj.SetContainer(bktInfo.CID)
+	addrObj.SetContainer(*containerID)
 	addrObj.SetObject(buf[0])

 	f(ctx, *h.newRequest(c, log), addrObj)
 }
-
-// resolveContainer decode container id, if it's not a valid container id
-// then trey to resolve name using provided resolver.
-func (h *Handler) resolveContainer(ctx context.Context, containerID string) (*cid.ID, error) {
-	cnrID := new(cid.ID)
-	err := cnrID.DecodeString(containerID)
-	if err != nil {
-		cnrID, err = h.containerResolver.Resolve(ctx, containerID)
-		if err != nil && strings.Contains(err.Error(), "not found") {
-			err = fmt.Errorf("%w: %s", new(apistatus.ContainerNotFound), err.Error())
-		}
-	}
-	return cnrID, err
-}
-
-func (h *Handler) getBucketInfo(ctx context.Context, containerName string, log *zap.Logger) (*data.BucketInfo, error) {
-	ns, err := middleware.GetNamespace(ctx)
-	if err != nil {
-		return nil, err
-	}
-
-	if bktInfo := h.cache.Get(ns, containerName); bktInfo != nil {
-		return bktInfo, nil
-	}
-
-	cnrID, err := h.resolveContainer(ctx, containerName)
-	if err != nil {
-		return nil, err
-	}
-
-	bktInfo, err := h.readContainer(ctx, *cnrID)
-	if err != nil {
-		return nil, err
-	}
-
-	if err = h.cache.Put(bktInfo); err != nil {
-		log.Warn(logs.CouldntPutBucketIntoCache,
-			zap.String("bucket name", bktInfo.Name),
-			zap.Stringer("bucket cid", bktInfo.CID),
-			zap.Error(err))
-	}
-
-	return bktInfo, nil
-}
-
-func (h *Handler) readContainer(ctx context.Context, cnrID cid.ID) (*data.BucketInfo, error) {
-	prm := PrmContainer{ContainerID: cnrID}
-	res, err := h.frostfs.Container(ctx, prm)
-	if err != nil {
-		return nil, fmt.Errorf("get frostfs container '%s': %w", cnrID.String(), err)
-	}
-
-	bktInfo := &data.BucketInfo{
-		CID:  cnrID,
-		Name: cnrID.EncodeToString(),
-	}
-
-	if domain := container.ReadDomain(*res); domain.Name() != "" {
-		bktInfo.Name = domain.Name()
-		bktInfo.Zone = domain.Zone()
-	}
-
-	bktInfo.HomomorphicHashDisabled = container.IsHomomorphicHashingDisabled(*res)
-
-	return bktInfo, err
-}
--- a/internal/handler/handler_fuzz_test.go
+++ b/internal/handler/handler_fuzz_test.go
@ -1,580 +0,0 @@
-//go:build gofuzz
-// +build gofuzz
-
-package handler
-
-import (
-	"bytes"
-	"context"
-	"encoding/json"
-	"errors"
-	"io"
-	"mime/multipart"
-	"net/http"
-	"testing"
-
-	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/handler/middleware"
-	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/tokens"
-	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/utils"
-	"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/object"
-	go_fuzz_utils "github.com/trailofbits/go-fuzz-utils"
-	"github.com/valyala/fasthttp"
-)
-
-const (
-	fuzzSuccessExitCode = 0
-	fuzzFailExitCode    = -1
-)
-
-func prepareStrings(tp *go_fuzz_utils.TypeProvider, count int) ([]string, error) {
-	array := make([]string, count)
-	var err error
-
-	for i := 0; i < count; i++ {
-		err = tp.Reset()
-		if err != nil {
-			return nil, err
-		}
-
-		array[i], err = tp.GetString()
-		if err != nil {
-			return nil, err
-		}
-	}
-
-	return array, nil
-}
-
-func prepareBools(tp *go_fuzz_utils.TypeProvider, count int) ([]bool, error) {
-	array := make([]bool, count)
-	var err error
-
-	for i := 0; i < count; i++ {
-		err = tp.Reset()
-		if err != nil {
-			return nil, err
-		}
-
-		array[i], err = tp.GetBool()
-		if err != nil {
-			return nil, err
-		}
-	}
-
-	return array, nil
-}
-
-func getRandomDeterministicPositiveIntInRange(tp *go_fuzz_utils.TypeProvider, max int) (int, error) {
-	count, err := tp.GetInt()
-	if err != nil {
-		return -1, err
-	}
-	count = count % max
-	if count < 0 {
-		count += max
-	}
-	return count, nil
-}
-
-func generateHeaders(tp *go_fuzz_utils.TypeProvider, r *fasthttp.Request, params []string) error {
-	count, err := tp.GetInt()
-	if err != nil {
-		return err
-	}
-	count = count % len(params)
-	if count < 0 {
-		count += len(params)
-	}
-
-	for i := 0; i < count; i++ {
-		position, err := tp.GetInt()
-		if err != nil {
-			return err
-		}
-		position = position % len(params)
-		if position < 0 {
-			position += len(params)
-		}
-
-		v, err := tp.GetString()
-		if err != nil {
-			return err
-		}
-
-		r.Header.Set(params[position], v)
-
-	}
-
-	return nil
-}
-
-func maybeFillRandom(tp *go_fuzz_utils.TypeProvider, initValue string) (string, error) {
-	rnd, err := tp.GetBool()
-	if err != nil {
-		return "", err
-	}
-	if rnd == true {
-		initValue, err = tp.GetString()
-		if err != nil {
-			return "", err
-		}
-	}
-	return initValue, nil
-}
-
-func upload(tp *go_fuzz_utils.TypeProvider) (context.Context, *handlerContext, cid.ID, *fasthttp.RequestCtx, string, string, string, error) {
-	hc, err := prepareHandlerContext()
-	if err != nil {
-		return nil, nil, cid.ID{}, nil, "", "", "", err
-	}
-
-	aclList := []acl.Basic{
-		acl.Private,
-		acl.PrivateExtended,
-		acl.PublicRO,
-		acl.PublicROExtended,
-		acl.PublicRW,
-		acl.PublicRWExtended,
-		acl.PublicAppend,
-		acl.PublicAppendExtended,
-	}
-
-	pos, err := getRandomDeterministicPositiveIntInRange(tp, len(aclList))
-	if err != nil {
-		return nil, nil, cid.ID{}, nil, "", "", "", err
-	}
-	acl := aclList[pos]
-
-	strings, err := prepareStrings(tp, 6)
-	if err != nil {
-		return nil, nil, cid.ID{}, nil, "", "", "", err
-	}
-	bktName := strings[0]
-	objFileName := strings[1]
-	valAttr := strings[2]
-	keyAttr := strings[3]
-
-	if len(bktName) == 0 {
-		return nil, nil, cid.ID{}, nil, "", "", "", errors.New("not enought buckets")
-	}
-
-	cnrID, cnr, err := hc.prepareContainer(bktName, acl)
-	if err != nil {
-		return nil, nil, cid.ID{}, nil, "", "", "", err
-	}
-
-	hc.frostfs.SetContainer(cnrID, cnr)
-
-	ctx := context.Background()
-	ctx = middleware.SetNamespace(ctx, "")
-
-	r := new(fasthttp.RequestCtx)
-	utils.SetContextToRequest(ctx, r)
-	r.SetUserValue("cid", cnrID.EncodeToString())
-
-	attributes := map[string]string{
-		object.AttributeFileName: objFileName,
-		keyAttr:                  valAttr,
-	}
-
-	var buff bytes.Buffer
-	w := multipart.NewWriter(&buff)
-	fw, err := w.CreateFormFile("file", attributes[object.AttributeFileName])
-	if err != nil {
-		return nil, nil, cid.ID{}, nil, "", "", "", err
-	}
-
-	content, err := tp.GetBytes()
-	if err != nil {
-		return nil, nil, cid.ID{}, nil, "", "", "", err
-	}
-
-	if _, err = io.Copy(fw, bytes.NewReader(content)); err != nil {
-		return nil, nil, cid.ID{}, nil, "", "", "", err
-	}
-
-	if err = w.Close(); err != nil {
-		return nil, nil, cid.ID{}, nil, "", "", "", err
-	}
-
-	r.Request.SetBodyStream(&buff, buff.Len())
-	r.Request.Header.Set("Content-Type", w.FormDataContentType())
-	r.Request.Header.Set("X-Attribute-"+keyAttr, valAttr)
-
-	err = generateHeaders(tp, &r.Request, []string{"X-Attribute-", "X-Attribute-DupKey", "X-Attribute-MyAttribute", "X-Attribute-System-DupKey", "X-Attribute-System-Expiration-Epoch1", "X-Attribute-SYSTEM-Expiration-Epoch2", "X-Attribute-system-Expiration-Epoch3", "X-Attribute-User-Attribute", "X-Attribute-", "X-Attribute-FileName", "X-Attribute-FROSTFS", "X-Attribute-neofs", "X-Attribute-SYSTEM", "X-Attribute-System-Expiration-Duration", "X-Attribute-System-Expiration-Epoch", "X-Attribute-System-Expiration-RFC3339", "X-Attribute-System-Expiration-Timestamp", "X-Attribute-Timestamp", "X-Attribute-" + strings[4], "X-Attribute-System-" + strings[5]})
-	if err != nil {
-		return nil, nil, cid.ID{}, nil, "", "", "", err
-	}
-
-	hc.Handler().Upload(r)
-
-	if r.Response.StatusCode() != http.StatusOK {
-		return nil, nil, cid.ID{}, nil, "", "", "", errors.New("error on upload")
-	}
-
-	return ctx, hc, cnrID, r, objFileName, keyAttr, valAttr, nil
-}
-
-func InitFuzzUpload() {
-
-}
-
-func DoFuzzUpload(input []byte) int {
-	// FUZZER INIT
-	if len(input) < 100 {
-		return fuzzFailExitCode
-	}
-
-	tp, err := go_fuzz_utils.NewTypeProvider(input)
-	if err != nil {
-		return fuzzFailExitCode
-	}
-
-	_, _, _, _, _, _, _, err = upload(tp)
-	if err != nil {
-		return fuzzFailExitCode
-	}
-
-	return fuzzSuccessExitCode
-}
-
-func FuzzUpload(f *testing.F) {
-	f.Fuzz(func(t *testing.T, data []byte) {
-		DoFuzzUpload(data)
-	})
-}
-
-func downloadOrHead(tp *go_fuzz_utils.TypeProvider, ctx context.Context, hc *handlerContext, cnrID cid.ID, resp *fasthttp.RequestCtx, filename string) (*fasthttp.RequestCtx, error) {
-
-	var putRes putResponse
-
-	defer func() {
-		if r := recover(); r != nil {
-			panic(resp)
-		}
-	}()
-
-	data := resp.Response.Body()
-	err := json.Unmarshal(data, &putRes)
-
-	if err != nil {
-		return nil, err
-	}
-
-	obj := hc.frostfs.objects[putRes.ContainerID+"/"+putRes.ObjectID]
-	attr := object.NewAttribute()
-	attr.SetKey(object.AttributeFilePath)
-
-	filename, err = maybeFillRandom(tp, filename)
-	if err != nil {
-		return nil, err
-	}
-
-	attr.SetValue(filename)
-	obj.SetAttributes(append(obj.Attributes(), *attr)...)
-
-	r := new(fasthttp.RequestCtx)
-	utils.SetContextToRequest(ctx, r)
-
-	cid := cnrID.EncodeToString()
-	cid, err = maybeFillRandom(tp, cid)
-	if err != nil {
-		return nil, err
-	}
-	oid := putRes.ObjectID
-	oid, err = maybeFillRandom(tp, oid)
-	if err != nil {
-		return nil, err
-	}
-	r.SetUserValue("cid", cid)
-	r.SetUserValue("oid", oid)
-
-	rnd, err := tp.GetBool()
-	if err != nil {
-		return nil, err
-	}
-	if rnd == true {
-		r.SetUserValue("download", "true")
-	}
-
-	return r, nil
-}
-
-func InitFuzzGet() {
-
-}
-
-func DoFuzzGet(input []byte) int {
-	// FUZZER INIT
-	if len(input) < 100 {
-		return fuzzFailExitCode
-	}
-
-	tp, err := go_fuzz_utils.NewTypeProvider(input)
-	if err != nil {
-		return fuzzFailExitCode
-	}
-
-	ctx, hc, cnrID, resp, filename, _, _, err := upload(tp)
-	if err != nil {
-		return fuzzFailExitCode
-	}
-
-	r, err := downloadOrHead(tp, ctx, hc, cnrID, resp, filename)
-	if err != nil {
-		return fuzzFailExitCode
-	}
-
-	hc.Handler().DownloadByAddressOrBucketName(r)
-
-	return fuzzSuccessExitCode
-}
-
-func FuzzGet(f *testing.F) {
-	f.Fuzz(func(t *testing.T, data []byte) {
-		DoFuzzUpload(data)
-	})
-}
-
-func InitFuzzHead() {
-
-}
-
-func DoFuzzHead(input []byte) int {
-	// FUZZER INIT
-	if len(input) < 100 {
-		return fuzzFailExitCode
-	}
-
-	tp, err := go_fuzz_utils.NewTypeProvider(input)
-	if err != nil {
-		return fuzzFailExitCode
-	}
-
-	ctx, hc, cnrID, resp, filename, _, _, err := upload(tp)
-	if err != nil {
-		return fuzzFailExitCode
-	}
-
-	r, err := downloadOrHead(tp, ctx, hc, cnrID, resp, filename)
-	if err != nil {
-		return fuzzFailExitCode
-	}
-
-	hc.Handler().HeadByAddressOrBucketName(r)
-
-	return fuzzSuccessExitCode
-}
-
-func FuzzHead(f *testing.F) {
-	f.Fuzz(func(t *testing.T, data []byte) {
-		DoFuzzHead(data)
-	})
-}
-
-func InitFuzzDownloadByAttribute() {
-
-}
-
-func DoFuzzDownloadByAttribute(input []byte) int {
-	// FUZZER INIT
-	if len(input) < 100 {
-		return fuzzFailExitCode
-	}
-
-	tp, err := go_fuzz_utils.NewTypeProvider(input)
-	if err != nil {
-		return fuzzFailExitCode
-	}
-
-	ctx, hc, cnrID, _, _, attrKey, attrVal, err := upload(tp)
-	if err != nil {
-		return fuzzFailExitCode
-	}
-
-	cid := cnrID.EncodeToString()
-	cid, err = maybeFillRandom(tp, cid)
-	if err != nil {
-		return fuzzFailExitCode
-	}
-
-	attrKey, err = maybeFillRandom(tp, attrKey)
-	if err != nil {
-		return fuzzFailExitCode
-	}
-
-	attrVal, err = maybeFillRandom(tp, attrVal)
-	if err != nil {
-		return fuzzFailExitCode
-	}
-
-	r := new(fasthttp.RequestCtx)
-	utils.SetContextToRequest(ctx, r)
-	r.SetUserValue("cid", cid)
-	r.SetUserValue("attr_key", attrKey)
-	r.SetUserValue("attr_val", attrVal)
-
-	hc.Handler().DownloadByAttribute(r)
-
-	return fuzzSuccessExitCode
-}
-
-func FuzzDownloadByAttribute(f *testing.F) {
-	f.Fuzz(func(t *testing.T, data []byte) {
-		DoFuzzDownloadByAttribute(data)
-	})
-}
-
-func InitFuzzHeadByAttribute() {
-
-}
-
-func DoFuzzHeadByAttribute(input []byte) int {
-	// FUZZER INIT
-	if len(input) < 100 {
-		return fuzzFailExitCode
-	}
-
-	tp, err := go_fuzz_utils.NewTypeProvider(input)
-	if err != nil {
-		return fuzzFailExitCode
-	}
-
-	ctx, hc, cnrID, _, _, attrKey, attrVal, err := upload(tp)
-	if err != nil {
-		return fuzzFailExitCode
-	}
-
-	cid := cnrID.EncodeToString()
-	cid, err = maybeFillRandom(tp, cid)
-	if err != nil {
-		return fuzzFailExitCode
-	}
-
-	attrKey, err = maybeFillRandom(tp, attrKey)
-	if err != nil {
-		return fuzzFailExitCode
-	}
-
-	attrVal, err = maybeFillRandom(tp, attrVal)
-	if err != nil {
-		return fuzzFailExitCode
-	}
-
-	r := new(fasthttp.RequestCtx)
-	utils.SetContextToRequest(ctx, r)
-	r.SetUserValue("cid", cid)
-	r.SetUserValue("attr_key", attrKey)
-	r.SetUserValue("attr_val", attrVal)
-
-	hc.Handler().HeadByAttribute(r)
-
-	return fuzzSuccessExitCode
-}
-
-func FuzzHeadByAttribute(f *testing.F) {
-	f.Fuzz(func(t *testing.T, data []byte) {
-		DoFuzzHeadByAttribute(data)
-	})
-}
-
-func InitFuzzDownloadZipped() {
-
-}
-
-func DoFuzzDownloadZipped(input []byte) int {
-	// FUZZER INIT
-	if len(input) < 100 {
-		return fuzzFailExitCode
-	}
-
-	tp, err := go_fuzz_utils.NewTypeProvider(input)
-	if err != nil {
-		return fuzzFailExitCode
-	}
-
-	ctx, hc, cnrID, _, _, _, _, err := upload(tp)
-	if err != nil {
-		return fuzzFailExitCode
-	}
-
-	cid := cnrID.EncodeToString()
-	cid, err = maybeFillRandom(tp, cid)
-	if err != nil {
-		return fuzzFailExitCode
-	}
-
-	prefix := ""
-	prefix, err = maybeFillRandom(tp, prefix)
-	if err != nil {
-		return fuzzFailExitCode
-	}
-
-	r := new(fasthttp.RequestCtx)
-	utils.SetContextToRequest(ctx, r)
-	r.SetUserValue("cid", cid)
-	r.SetUserValue("prefix", prefix)
-
-	hc.Handler().DownloadZipped(r)
-
-	return fuzzSuccessExitCode
-}
-
-func FuzzDownloadZipped(f *testing.F) {
-	f.Fuzz(func(t *testing.T, data []byte) {
-		DoFuzzDownloadZipped(data)
-	})
-}
-
-func InitFuzzStoreBearerTokenAppCtx() {
-
-}
-
-func DoFuzzStoreBearerTokenAppCtx(input []byte) int {
-	// FUZZER INIT
-	if len(input) < 100 {
-		return fuzzFailExitCode
-	}
-
-	tp, err := go_fuzz_utils.NewTypeProvider(input)
-	if err != nil {
-		return fuzzFailExitCode
-	}
-
-	prefix := ""
-	prefix, err = maybeFillRandom(tp, prefix)
-	if err != nil {
-		return fuzzFailExitCode
-	}
-
-	ctx := context.Background()
-	ctx = middleware.SetNamespace(ctx, "")
-
-	r := new(fasthttp.RequestCtx)
-	utils.SetContextToRequest(ctx, r)
-
-	strings, err := prepareStrings(tp, 3)
-
-	rand, err := prepareBools(tp, 2)
-
-	if rand[0] == true {
-		r.Request.Header.Set(fasthttp.HeaderAuthorization, "Bearer"+strings[0])
-	} else if rand[1] == true {
-		r.Request.Header.SetCookie(fasthttp.HeaderAuthorization, "Bearer"+strings[1])
-	} else {
-		r.Request.Header.Set(fasthttp.HeaderAuthorization, "Bearer"+strings[0])
-		r.Request.Header.SetCookie(fasthttp.HeaderAuthorization, "Bearer"+strings[1])
-	}
-
-	tokens.StoreBearerTokenAppCtx(ctx, r)
-
-	return fuzzSuccessExitCode
-}
-
-func FuzzStoreBearerTokenAppCtx(f *testing.F) {
-	f.Fuzz(func(t *testing.T, data []byte) {
-		DoFuzzStoreBearerTokenAppCtx(data)
-	})
-}
--- a/internal/handler/handler_test.go
+++ b/internal/handler/handler_test.go
@ -1,296 +0,0 @@
-package handler
-
-import (
-	"archive/zip"
-	"bytes"
-	"context"
-	"encoding/json"
-	"io"
-	"mime/multipart"
-	"net/http"
-	"testing"
-	"time"
-
-	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/cache"
-	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/handler/middleware"
-	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/resolver"
-	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/tree"
-	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/utils"
-	"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"
-	cidtest "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/container/id/test"
-	"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/nspcc-dev/neo-go/pkg/crypto/keys"
-	"github.com/stretchr/testify/require"
-	"github.com/valyala/fasthttp"
-	"go.uber.org/zap"
-)
-
-type treeClientMock struct {
-}
-
-func (t *treeClientMock) GetNodes(context.Context, *tree.GetNodesParams) ([]tree.NodeResponse, error) {
-	return nil, nil
-}
-
-type configMock struct {
-}
-
-func (c *configMock) DefaultTimestamp() bool {
-	return false
-}
-
-func (c *configMock) ZipCompression() bool {
-	return false
-}
-
-func (c *configMock) ClientCut() bool {
-	return false
-}
-
-func (c *configMock) BufferMaxSizeForPut() uint64 {
-	return 0
-}
-
-func (c *configMock) NamespaceHeader() string {
-	return ""
-}
-
-type handlerContext struct {
-	key   *keys.PrivateKey
-	owner user.ID
-
-	h       *Handler
-	frostfs *TestFrostFS
-	tree    *treeClientMock
-	cfg     *configMock
-}
-
-func (hc *handlerContext) Handler() *Handler {
-	return hc.h
-}
-
-func prepareHandlerContext() (*handlerContext, error) {
-	logger, err := zap.NewDevelopment()
-	if err != nil {
-		return nil, err
-	}
-
-	key, err := keys.NewPrivateKey()
-	if err != nil {
-		return nil, err
-	}
-
-	var owner user.ID
-	user.IDFromKey(&owner, key.PrivateKey.PublicKey)
-
-	testFrostFS := NewTestFrostFS(key)
-
-	testResolver := &resolver.Resolver{Name: "test_resolver"}
-	testResolver.SetResolveFunc(func(_ context.Context, name string) (*cid.ID, error) {
-		return testFrostFS.ContainerID(name)
-	})
-
-	params := &AppParams{
-		Logger:   logger,
-		FrostFS:  testFrostFS,
-		Owner:    &owner,
-		Resolver: testResolver,
-		Cache: cache.NewBucketCache(&cache.Config{
-			Size:     1,
-			Lifetime: 1,
-			Logger:   logger,
-		}),
-	}
-
-	treeMock := &treeClientMock{}
-	cfgMock := &configMock{}
-
-	handler := New(params, cfgMock, tree.NewTree(treeMock))
-
-	return &handlerContext{
-		key:     key,
-		owner:   owner,
-		h:       handler,
-		frostfs: testFrostFS,
-		tree:    treeMock,
-		cfg:     cfgMock,
-	}, nil
-}
-
-func (hc *handlerContext) prepareContainer(name string, basicACL acl.Basic) (cid.ID, *container.Container, error) {
-	var pp netmap.PlacementPolicy
-	err := pp.DecodeString("REP 1")
-	if err != nil {
-		return cid.ID{}, nil, err
-	}
-
-	var cnr container.Container
-	cnr.Init()
-	cnr.SetOwner(hc.owner)
-	cnr.SetPlacementPolicy(pp)
-	cnr.SetBasicACL(basicACL)
-
-	var domain container.Domain
-	domain.SetName(name)
-	container.WriteDomain(&cnr, domain)
-	container.SetName(&cnr, name)
-	container.SetCreationTime(&cnr, time.Now())
-
-	cnrID := cidtest.ID()
-
-	for op := acl.OpObjectGet; op < acl.OpObjectHash; op++ {
-		hc.frostfs.AllowUserOperation(cnrID, hc.owner, op, oid.ID{})
-		if basicACL.IsOpAllowed(op, acl.RoleOthers) {
-			hc.frostfs.AllowUserOperation(cnrID, user.ID{}, op, oid.ID{})
-		}
-	}
-
-	return cnrID, &cnr, nil
-}
-
-func TestBasic(t *testing.T) {
-	hc, err := prepareHandlerContext()
-	require.NoError(t, err)
-
-	bktName := "bucket"
-	cnrID, cnr, err := hc.prepareContainer(bktName, acl.PublicRWExtended)
-	require.NoError(t, err)
-	hc.frostfs.SetContainer(cnrID, cnr)
-
-	ctx := context.Background()
-	ctx = middleware.SetNamespace(ctx, "")
-
-	content := "hello"
-	r, err := prepareUploadRequest(ctx, cnrID.EncodeToString(), content)
-	require.NoError(t, err)
-
-	hc.Handler().Upload(r)
-	require.Equal(t, r.Response.StatusCode(), http.StatusOK)
-
-	var putRes putResponse
-	err = json.Unmarshal(r.Response.Body(), &putRes)
-	require.NoError(t, err)
-
-	obj := hc.frostfs.objects[putRes.ContainerID+"/"+putRes.ObjectID]
-	attr := object.NewAttribute()
-	attr.SetKey(object.AttributeFilePath)
-	attr.SetValue(objFileName)
-	obj.SetAttributes(append(obj.Attributes(), *attr)...)
-
-	t.Run("get", func(t *testing.T) {
-		r = prepareGetRequest(ctx, cnrID.EncodeToString(), putRes.ObjectID)
-		hc.Handler().DownloadByAddressOrBucketName(r)
-		require.Equal(t, content, string(r.Response.Body()))
-	})
-
-	t.Run("head", func(t *testing.T) {
-		r = prepareGetRequest(ctx, cnrID.EncodeToString(), putRes.ObjectID)
-		hc.Handler().HeadByAddressOrBucketName(r)
-		require.Equal(t, putRes.ObjectID, string(r.Response.Header.Peek(hdrObjectID)))
-		require.Equal(t, putRes.ContainerID, string(r.Response.Header.Peek(hdrContainerID)))
-	})
-
-	t.Run("get by attribute", func(t *testing.T) {
-		r = prepareGetByAttributeRequest(ctx, bktName, keyAttr, valAttr)
-		hc.Handler().DownloadByAttribute(r)
-		require.Equal(t, content, string(r.Response.Body()))
-	})
-
-	t.Run("head by attribute", func(t *testing.T) {
-		r = prepareGetByAttributeRequest(ctx, bktName, keyAttr, valAttr)
-		hc.Handler().HeadByAttribute(r)
-		require.Equal(t, putRes.ObjectID, string(r.Response.Header.Peek(hdrObjectID)))
-		require.Equal(t, putRes.ContainerID, string(r.Response.Header.Peek(hdrContainerID)))
-	})
-
-	t.Run("zip", func(t *testing.T) {
-		r = prepareGetZipped(ctx, bktName, "")
-		hc.Handler().DownloadZipped(r)
-
-		readerAt := bytes.NewReader(r.Response.Body())
-		zipReader, err := zip.NewReader(readerAt, int64(len(r.Response.Body())))
-		require.NoError(t, err)
-		require.Len(t, zipReader.File, 1)
-		require.Equal(t, objFileName, zipReader.File[0].Name)
-		f, err := zipReader.File[0].Open()
-		require.NoError(t, err)
-		defer func() {
-			inErr := f.Close()
-			require.NoError(t, inErr)
-		}()
-		data, err := io.ReadAll(f)
-		require.NoError(t, err)
-		require.Equal(t, content, string(data))
-	})
-}
-
-func prepareUploadRequest(ctx context.Context, bucket, content string) (*fasthttp.RequestCtx, error) {
-	r := new(fasthttp.RequestCtx)
-	utils.SetContextToRequest(ctx, r)
-	r.SetUserValue("cid", bucket)
-	return r, fillMultipartBody(r, content)
-}
-
-func prepareGetRequest(ctx context.Context, bucket, objID string) *fasthttp.RequestCtx {
-	r := new(fasthttp.RequestCtx)
-	utils.SetContextToRequest(ctx, r)
-	r.SetUserValue("cid", bucket)
-	r.SetUserValue("oid", objID)
-	return r
-}
-
-func prepareGetByAttributeRequest(ctx context.Context, bucket, attrKey, attrVal string) *fasthttp.RequestCtx {
-	r := new(fasthttp.RequestCtx)
-	utils.SetContextToRequest(ctx, r)
-	r.SetUserValue("cid", bucket)
-	r.SetUserValue("attr_key", attrKey)
-	r.SetUserValue("attr_val", attrVal)
-	return r
-}
-
-func prepareGetZipped(ctx context.Context, bucket, prefix string) *fasthttp.RequestCtx {
-	r := new(fasthttp.RequestCtx)
-	utils.SetContextToRequest(ctx, r)
-	r.SetUserValue("cid", bucket)
-	r.SetUserValue("prefix", prefix)
-	return r
-}
-
-const (
-	keyAttr     = "User-Attribute"
-	valAttr     = "user value"
-	objFileName = "newFile.txt"
-)
-
-func fillMultipartBody(r *fasthttp.RequestCtx, content string) error {
-	attributes := map[string]string{
-		object.AttributeFileName: objFileName,
-		keyAttr:                  valAttr,
-	}
-
-	var buff bytes.Buffer
-	w := multipart.NewWriter(&buff)
-	fw, err := w.CreateFormFile("file", attributes[object.AttributeFileName])
-	if err != nil {
-		return err
-	}
-
-	if _, err = io.Copy(fw, bytes.NewBufferString(content)); err != nil {
-		return err
-	}
-
-	if err = w.Close(); err != nil {
-		return err
-	}
-
-	r.Request.SetBodyStream(&buff, buff.Len())
-	r.Request.Header.Set("Content-Type", w.FormDataContentType())
-	r.Request.Header.Set("X-Attribute-"+keyAttr, valAttr)
-
-	return nil
-}
--- a/internal/handler/head.go
+++ b/internal/handler/head.go
@ -11,6 +11,7 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/utils"
 	"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/pool"
 	"github.com/valyala/fasthttp"
 	"go.uber.org/zap"
 )
@ -29,14 +30,13 @@ func (h *Handler) headObject(ctx context.Context, req request, objectAddress oid

 	btoken := bearerToken(ctx)

-	prm := PrmObjectHead{
-		PrmAuth: PrmAuth{
-			BearerToken: btoken,
-		},
-		Address: objectAddress,
+	var prm pool.PrmObjectHead
+	prm.SetAddress(objectAddress)
+	if btoken != nil {
+		prm.UseBearer(*btoken)
 	}

-	obj, err := h.frostfs.HeadObject(ctx, prm)
+	obj, err := h.pool.HeadObject(ctx, prm)
 	if err != nil {
 		req.handleFrostFSErr(err, start)
 		return
@ -70,19 +70,22 @@ func (h *Handler) headObject(ctx context.Context, req request, objectAddress oid
 		}
 	}

-	idsToResponse(&req.Response, obj)
+	idsToResponse(&req.Response, &obj)

 	if len(contentType) == 0 {
 		contentType, _, err = readContentType(obj.PayloadSize(), func(sz uint64) (io.Reader, error) {
-			prmRange := PrmObjectRange{
-				PrmAuth: PrmAuth{
-					BearerToken: btoken,
-				},
-				Address:      objectAddress,
-				PayloadRange: [2]uint64{0, sz},
+			var prmRange pool.PrmObjectRange
+			prmRange.SetAddress(objectAddress)
+			prmRange.SetLength(sz)
+			if btoken != nil {
+				prmRange.UseBearer(*btoken)
 			}

-			return h.frostfs.RangeObject(ctx, prmRange)
+			resObj, err := h.pool.ObjectRange(ctx, prmRange)
+			if err != nil {
+				return nil, err
+			}
+			return &resObj, nil
 		})
 		if err != nil && err != io.EOF {
 			req.handleFrostFSErr(err, start)
@ -107,7 +110,7 @@ func (h *Handler) HeadByAddressOrBucketName(c *fasthttp.RequestCtx) {

 	err := id.DecodeString(test)
 	if err != nil {
-		h.byObjectName(c, h.headObject)
+		h.byBucketname(c, h.headObject)
 	} else {
 		h.byAddress(c, h.headObject)
 	}
--- a/internal/handler/middleware/util.go
+++ b/internal/handler/middleware/util.go
@ -1,26 +0,0 @@
-package middleware
-
-import (
-	"context"
-	"fmt"
-)
-
-// keyWrapper is wrapper for context keys.
-type keyWrapper string
-
-const nsKey = keyWrapper("namespace")
-
-// GetNamespace extract namespace from context.
-func GetNamespace(ctx context.Context) (string, error) {
-	ns, ok := ctx.Value(nsKey).(string)
-	if !ok {
-		return "", fmt.Errorf("couldn't get namespace from context")
-	}
-
-	return ns, nil
-}
-
-// SetNamespace sets namespace in the context.
-func SetNamespace(ctx context.Context, ns string) context.Context {
-	return context.WithValue(ctx, nsKey, ns)
-}
--- a/internal/handler/reader.go
+++ b/internal/handler/reader.go
@ -14,6 +14,7 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/utils"
 	"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/pool"
 	"github.com/valyala/fasthttp"
 	"go.uber.org/zap"
 )
@ -55,14 +56,13 @@ func (h *Handler) receiveFile(ctx context.Context, req request, objectAddress oi
 		filename string
 	)

-	prm := PrmObjectGet{
-		PrmAuth: PrmAuth{
-			BearerToken: bearerToken(ctx),
-		},
-		Address: objectAddress,
+	var prm pool.PrmObjectGet
+	prm.SetAddress(objectAddress)
+	if btoken := bearerToken(ctx); btoken != nil {
+		prm.UseBearer(*btoken)
 	}

-	rObj, err := h.frostfs.GetObject(ctx, prm)
+	rObj, err := h.pool.GetObject(ctx, prm)
 	if err != nil {
 		req.handleFrostFSErr(err, start)
 		return
--- a/internal/handler/reader_test.go
+++ b/internal/handler/reader_test.go
@ -35,7 +35,7 @@ func TestDetector(t *testing.T) {
 	} {
 		t.Run(tc.Name, func(t *testing.T) {
 			contentType, data, err := readContentType(uint64(len(tc.Expected)),
-				func(uint64) (io.Reader, error) {
+				func(sz uint64) (io.Reader, error) {
 					return strings.NewReader(tc.Expected), nil
 				},
 			)
--- a/internal/handler/upload.go
+++ b/internal/handler/upload.go
@ -15,6 +15,7 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/bearer"
 	"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/pool"
 	"github.com/valyala/fasthttp"
 	"go.uber.org/zap"
 )
@ -56,9 +57,10 @@ func (h *Handler) Upload(req *fasthttp.RequestCtx) {

 	ctx := utils.GetContextFromRequest(req)

-	bktInfo, err := h.getBucketInfo(ctx, scid, log)
+	idCnr, err := h.getContainerID(ctx, scid)
 	if err != nil {
-		logAndSendBucketError(req, log, err)
+		log.Error(logs.WrongContainerID, zap.Error(err))
+		response.Error(req, "wrong container id", fasthttp.StatusBadRequest)
 		return
 	}

@ -97,7 +99,7 @@ func (h *Handler) Upload(req *fasthttp.RequestCtx) {
 		}
 	}

-	if err = utils.PrepareExpirationHeader(req, h.frostfs, filtered, now); err != nil {
+	if err = utils.PrepareExpirationHeader(req, h.pool, filtered, now); err != nil {
 		log.Error(logs.CouldNotPrepareExpirationHeader, zap.Error(err))
 		response.Error(req, "could not prepare expiration header: "+err.Error(), fasthttp.StatusBadRequest)
 		return
@ -127,28 +129,26 @@ func (h *Handler) Upload(req *fasthttp.RequestCtx) {
 	}

 	obj := object.New()
-	obj.SetContainerID(bktInfo.CID)
-	obj.SetOwnerID(*h.ownerID)
+	obj.SetContainerID(*idCnr)
+	obj.SetOwnerID(h.ownerID)
 	obj.SetAttributes(attributes...)

-	prm := PrmObjectCreate{
-		PrmAuth: PrmAuth{
-			BearerToken: h.fetchBearerToken(ctx),
-		},
-		Object:                 obj,
-		Payload:                file,
-		ClientCut:              h.config.ClientCut(),
-		WithoutHomomorphicHash: bktInfo.HomomorphicHashDisabled,
-		BufferMaxSize:          h.config.BufferMaxSizeForPut(),
+	var prm pool.PrmObjectPut
+	prm.SetHeader(*obj)
+	prm.SetPayload(file)
+
+	bt := h.fetchBearerToken(ctx)
+	if bt != nil {
+		prm.UseBearer(*bt)
 	}

-	if idObj, err = h.frostfs.CreateObject(ctx, prm); err != nil {
+	if idObj, err = h.pool.PutObject(ctx, prm); err != nil {
 		h.handlePutFrostFSErr(req, err)
 		return
 	}

 	addr.SetObject(idObj)
-	addr.SetContainer(bktInfo.CID)
+	addr.SetContainer(*idCnr)

 	// Try to return the response, otherwise, if something went wrong, throw an error.
 	if err = newPutResponse(addr).encode(req); err != nil {
--- a/internal/handler/utils.go
+++ b/internal/handler/utils.go
@ -9,7 +9,6 @@ import (
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/response"
 	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/tokens"
 	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/bearer"
-	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/client"
 	"github.com/valyala/fasthttp"
 	"go.uber.org/zap"
 )
@ -59,13 +58,3 @@ func isValidValue(s string) bool {
 	}
 	return true
 }
-
-func logAndSendBucketError(c *fasthttp.RequestCtx, log *zap.Logger, err error) {
-	log.Error(logs.CouldntGetBucket, zap.Error(err))
-
-	if client.IsErrContainerNotFound(err) {
-		response.Error(c, "Not Found", fasthttp.StatusNotFound)
-		return
-	}
-	response.Error(c, "could not get bucket: "+err.Error(), fasthttp.StatusBadRequest)
-}
--- a/internal/logs/logs.go
+++ b/internal/logs/logs.go
@ -4,12 +4,14 @@ const (
 	CouldntParseCreationDate                                              = "couldn't parse creation date"                                                           // Info in ../../downloader/*
 	CouldNotDetectContentTypeFromPayload                                  = "could not detect Content-Type from payload"                                             // Error in ../../downloader/download.go
 	CouldNotReceiveObject                                                 = "could not receive object"                                                               // Error in ../../downloader/download.go
+	WrongContainerID                                                      = "wrong container id"                                                                     // Error in ../../downloader/download.go and uploader/upload.go
 	WrongObjectID                                                         = "wrong object id"                                                                        // Error in ../../downloader/download.go
-	GetLatestObjectVersion                                                = "get latest object version"                                                              // Error in ../../downloader/download.go
+	ObjectWasntFound                                                      = "object wasn't found"                                                                    // Error in ../../downloader/download.go
 	ObjectWasDeleted                                                      = "object was deleted"                                                                     // Error in ../../downloader/download.go
 	CouldNotSearchForObjects                                              = "could not search for objects"                                                           // Error in ../../downloader/download.go
 	ObjectNotFound                                                        = "object not found"                                                                       // Error in ../../downloader/download.go
 	ReadObjectListFailed                                                  = "read object list failed"                                                                // Error in ../../downloader/download.go
+	CouldNotCheckContainerExistence                                       = "could not check container existence"                                                    // Error in ../../downloader/download.go
 	FailedToAddObjectToArchive                                            = "failed to add object to archive"                                                        // Error in ../../downloader/download.go
 	IteratingOverSelectedObjectsFailed                                    = "iterating over selected objects failed"                                                 // Error in ../../downloader/download.go
 	ObjectsNotFound                                                       = "objects not found"                                                                      // Error in ../../downloader/download.go
@ -19,7 +21,6 @@ const (
 	ServiceHasntStartedSinceItsDisabled                                   = "service hasn't started since it's disabled"                                             // Info in ../../metrics/service.go
 	ShuttingDownService                                                   = "shutting down service"                                                                  // Info in ../../metrics/service.go
 	CantShutDownService                                                   = "can't shut down service"                                                                // Panic in ../../metrics/service.go
-	CantGracefullyShutDownService                                         = "can't gracefully shut down service, force stop"                                         // Error in ../../metrics/service.go
 	IgnorePartEmptyFormName                                               = "ignore part, empty form name"                                                           // Debug in ../../uploader/upload.go
 	IgnorePartEmptyFilename                                               = "ignore part, empty filename"                                                            // Debug in ../../uploader/upload.go
 	CloseTemporaryMultipartFormFile                                       = "close temporary multipart/form file"                                                    // Debug in ../../uploader/upload.go
@ -67,14 +68,6 @@ const (
 	FailedToCreateTreePool                                                = "failed to create tree pool"                                                             // Fatal in ../../settings.go
 	FailedToDialTreePool                                                  = "failed to dial tree pool"                                                               // Fatal in ../../settings.go
 	AddedStoragePeer                                                      = "added storage peer"                                                                     // Info in ../../settings.go
-	CouldntGetBucket                                                      = "could not get bucket"                                                                   // Error in ../handler/utils.go
-	CouldntPutBucketIntoCache                                             = "couldn't put bucket info into cache"                                                    // Warn in ../handler/handler.go
-	InvalidCacheEntryType                                                 = "invalid cache entry type"                                                               // Warn in ../cache/buckets.go
-	InvalidLifetimeUsingDefaultValue                                      = "invalid lifetime, using default value (in seconds)"                                     // Error in ../../cmd/http-gw/settings.go
-	InvalidCacheSizeUsingDefaultValue                                     = "invalid cache size, using default value"                                                // Error in ../../cmd/http-gw/settings.go
-	FailedToUnescapeQuery                                                 = "failed to unescape query"
-	ServerReconnecting                                                    = "reconnecting server..."
-	ServerReconnectedSuccessfully                                         = "server reconnected successfully"
-	ServerReconnectFailed                                                 = "failed to reconnect server"
-	WarnDuplicateAddress                                                  = "duplicate address"
+	AnonRequestSkipIAMValidation                                          = "anon request, skip IAM validation"                                                      // Debug in ../../app.go
+	IAMValidationFailed                                                   = "IAM validation failed"                                                                  // Error in ../../app.go
 )
--- a/metrics/service.go
+++ b/metrics/service.go
@ -40,9 +40,6 @@ func (ms *Service) ShutDown(ctx context.Context) {
 	ms.log.Info(logs.ShuttingDownService, zap.String("endpoint", ms.Addr))
 	err := ms.Shutdown(ctx)
 	if err != nil {
-		ms.log.Error(logs.CantGracefullyShutDownService, zap.Error(err))
-		if err = ms.Close(); err != nil {
-			ms.log.Panic(logs.CantShutDownService, zap.Error(err))
-		}
+		ms.log.Panic(logs.CantShutDownService)
 	}
 }
--- a/resolver/frostfs.go
+++ b/resolver/frostfs.go
@ -0,0 +1,35 @@
+package resolver
+
+import (
+	"context"
+	"errors"
+	"fmt"
+
+	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/pool"
+)
+
+// FrostFSResolver represents virtual connection to the FrostFS network.
+// It implements resolver.FrostFS.
+type FrostFSResolver struct {
+	pool *pool.Pool
+}
+
+// NewFrostFSResolver creates new FrostFSResolver using provided pool.Pool.
+func NewFrostFSResolver(p *pool.Pool) *FrostFSResolver {
+	return &FrostFSResolver{pool: p}
+}
+
+// SystemDNS implements resolver.FrostFS interface method.
+func (x *FrostFSResolver) SystemDNS(ctx context.Context) (string, error) {
+	networkInfo, err := x.pool.NetworkInfo(ctx)
+	if err != nil {
+		return "", fmt.Errorf("read network info via client: %w", err)
+	}
+
+	domain := networkInfo.RawNetworkParameter("SystemDNS")
+	if domain == nil {
+		return "", errors.New("system DNS parameter not found or empty")
+	}
+
+	return string(domain), nil
+}
--- a/resolver/resolver.go
+++ b/resolver/resolver.go
@ -6,7 +6,6 @@ import (
 	"fmt"
 	"sync"

-	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/internal/handler/middleware"
 	"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"
@ -29,17 +28,15 @@ type FrostFS interface {
 	SystemDNS(context.Context) (string, error)
 }

-type Settings interface {
-	FormContainerZone(ns string) (zone string, isDefault bool)
-}
-
 type Config struct {
 	FrostFS    FrostFS
 	RPCAddress string
-	Settings   Settings
 }

 type ContainerResolver struct {
+	rpcAddress string
+	frostfs    FrostFS
+
 	mu        sync.RWMutex
 	resolvers []*Resolver
 }
@ -64,7 +61,9 @@ func NewContainerResolver(resolverNames []string, cfg *Config) (*ContainerResolv
 	}

 	return &ContainerResolver{
-		resolvers: resolvers,
+		rpcAddress: cfg.RPCAddress,
+		frostfs:    cfg.FrostFS,
+		resolvers:  resolvers,
 	}, nil
 }

@ -107,7 +106,7 @@ func (r *ContainerResolver) Resolve(ctx context.Context, cnrName string) (*cid.I
 	return nil, ErrNoResolvers
 }

-func (r *ContainerResolver) UpdateResolvers(resolverNames []string, cfg *Config) error {
+func (r *ContainerResolver) UpdateResolvers(resolverNames []string) error {
 	r.mu.Lock()
 	defer r.mu.Unlock()

@ -115,7 +114,7 @@ func (r *ContainerResolver) UpdateResolvers(resolverNames []string, cfg *Config)
 		return nil
 	}

-	resolvers, err := createResolvers(resolverNames, cfg)
+	resolvers, err := createResolvers(resolverNames, &Config{FrostFS: r.frostfs, RPCAddress: r.rpcAddress})
 	if err != nil {
 		return err
 	}
@ -141,43 +140,29 @@ func (r *ContainerResolver) equals(resolverNames []string) bool {
 func newResolver(name string, cfg *Config) (*Resolver, error) {
 	switch name {
 	case DNSResolver:
-		return NewDNSResolver(cfg.FrostFS, cfg.Settings)
+		return NewDNSResolver(cfg.FrostFS)
 	case NNSResolver:
-		return NewNNSResolver(cfg.RPCAddress, cfg.Settings)
+		return NewNNSResolver(cfg.RPCAddress)
 	default:
 		return nil, fmt.Errorf("unknown resolver: %s", name)
 	}
 }

-func NewDNSResolver(frostFS FrostFS, settings Settings) (*Resolver, error) {
+func NewDNSResolver(frostFS FrostFS) (*Resolver, error) {
 	if frostFS == nil {
 		return nil, fmt.Errorf("pool must not be nil for DNS resolver")
 	}
-	if settings == nil {
-		return nil, fmt.Errorf("resolver settings must not be nil for DNS resolver")
-	}

 	var dns ns.DNS

 	resolveFunc := func(ctx context.Context, name string) (*cid.ID, error) {
-		var err error
-
-		namespace, err := middleware.GetNamespace(ctx)
+		domain, err := frostFS.SystemDNS(ctx)
 		if err != nil {
-			return nil, err
+			return nil, fmt.Errorf("read system DNS parameter of the FrostFS: %w", err)
 		}

-		zone, isDefault := settings.FormContainerZone(namespace)
-		if isDefault {
-			zone, err = frostFS.SystemDNS(ctx)
-			if err != nil {
-				return nil, fmt.Errorf("read system DNS parameter of the FrostFS: %w", err)
-			}
-		}
-
-		domain := name + "." + zone
+		domain = name + "." + domain
 		cnrID, err := dns.ResolveContainerName(domain)
-
 		if err != nil {
 			return nil, fmt.Errorf("couldn't resolve container '%s' as '%s': %w", name, domain, err)
 		}
@ -190,32 +175,17 @@ func NewDNSResolver(frostFS FrostFS, settings Settings) (*Resolver, error) {
 	}, nil
 }

-func NewNNSResolver(rpcAddress string, settings Settings) (*Resolver, error) {
-	if rpcAddress == "" {
-		return nil, fmt.Errorf("rpc address must not be empty for NNS resolver")
-	}
-	if settings == nil {
-		return nil, fmt.Errorf("resolver settings must not be nil for NNS resolver")
-	}
-
+func NewNNSResolver(rpcAddress string) (*Resolver, error) {
 	var nns ns.NNS

 	if err := nns.Dial(rpcAddress); err != nil {
 		return nil, fmt.Errorf("could not dial nns: %w", err)
 	}

-	resolveFunc := func(ctx context.Context, name string) (*cid.ID, error) {
+	resolveFunc := func(_ context.Context, name string) (*cid.ID, error) {
 		var d container.Domain
 		d.SetName(name)

-		namespace, err := middleware.GetNamespace(ctx)
-		if err != nil {
-			return nil, err
-		}
-
-		zone, _ := settings.FormContainerZone(namespace)
-		d.SetZone(zone)
-
 		cnrID, err := nns.ResolveContainerDomain(d)
 		if err != nil {
 			return nil, fmt.Errorf("couldn't resolve container '%s': %w", name, err)
--- a/tokens/bearer-token_test.go
+++ b/tokens/bearer-token_test.go
@ -23,29 +23,19 @@ func makeTestCookie(value []byte) *fasthttp.RequestHeader {
 func makeTestHeader(value []byte) *fasthttp.RequestHeader {
 	header := new(fasthttp.RequestHeader)
 	if value != nil {
-		header.Set(fasthttp.HeaderAuthorization, string(value))
+		header.Set(fasthttp.HeaderAuthorization, bearerTokenHdr+" "+string(value))
 	}
 	return header
 }

-func makeBearer(value string) string {
-	return bearerTokenHdr + " " + value
-}
-
-func TestBearerTokenFromCookie(t *testing.T) {
+func Test_fromCookie(t *testing.T) {
 	cases := []struct {
 		name   string
 		actual []byte
 		expect []byte
 	}{
-		{
-			name: "empty",
-		},
-		{
-			name:   "normal",
-			actual: []byte("TOKEN"),
-			expect: []byte("TOKEN"),
-		},
+		{name: "empty"},
+		{name: "normal", actual: []byte("TOKEN"), expect: []byte("TOKEN")},
 	}

 	for _, tt := range cases {
@ -55,31 +45,14 @@ func TestBearerTokenFromCookie(t *testing.T) {
 	}
 }

-func TestBearerTokenFromHeader(t *testing.T) {
-	validToken := "token"
-	tokenWithoutPrefix := "invalid-token"
-
+func Test_fromHeader(t *testing.T) {
 	cases := []struct {
 		name   string
 		actual []byte
 		expect []byte
 	}{
-		{
-			name: "empty",
-		},
-		{
-			name:   "token without the bearer prefix",
-			actual: []byte(tokenWithoutPrefix),
-		},
-		{
-			name:   "token without payload",
-			actual: []byte(makeBearer("")),
-		},
-		{
-			name:   "normal",
-			actual: []byte(makeBearer(validToken)),
-			expect: []byte(validToken),
-		},
+		{name: "empty"},
+		{name: "normal", actual: []byte("TOKEN"), expect: []byte("TOKEN")},
 	}

 	for _, tt := range cases {
@ -89,7 +62,7 @@ func TestBearerTokenFromHeader(t *testing.T) {
 	}
 }

-func TestFetchBearerToken(t *testing.T) {
+func Test_fetchBearerToken(t *testing.T) {
 	key, err := keys.NewPrivateKey()
 	require.NoError(t, err)
 	var uid user.ID
@ -102,77 +75,43 @@ func TestFetchBearerToken(t *testing.T) {
 	require.NotEmpty(t, t64)

 	cases := []struct {
-		name   string
+		name string
+
 		cookie string
 		header string
+
 		error  string
-		nilCtx bool
 		expect *bearer.Token
 	}{
-		{
-			name: "empty",
-		},
-		{
-			name:   "nil context",
-			nilCtx: true,
-		},
-		{
-			name:   "bad base64 header",
-			header: "WRONG BASE64",
-			error:  "can't base64-decode bearer token",
-		},
-		{
-			name:   "bad base64 cookie",
-			cookie: "WRONG BASE64",
-			error:  "can't base64-decode bearer token",
-		},
-		{
-			name:   "header token unmarshal error",
-			header: "dGVzdAo=",
-			error:  "can't unmarshal bearer token",
-		},
-		{
-			name:   "cookie token unmarshal error",
-			cookie: "dGVzdAo=",
-			error:  "can't unmarshal bearer token",
-		},
+		{name: "empty"},
+
+		{name: "bad base64 header", header: "WRONG BASE64", error: "can't base64-decode bearer token"},
+		{name: "bad base64 cookie", cookie: "WRONG BASE64", error: "can't base64-decode bearer token"},
+
+		{name: "header token unmarshal error", header: "dGVzdAo=", error: "can't unmarshal bearer token"},
+		{name: "cookie token unmarshal error", cookie: "dGVzdAo=", error: "can't unmarshal bearer token"},
+
 		{
 			name:   "bad header and cookie",
 			header: "WRONG BASE64",
 			cookie: "dGVzdAo=",
 			error:  "can't unmarshal bearer token",
 		},
+
 		{
 			name:   "bad header, but good cookie",
 			header: "dGVzdAo=",
 			cookie: t64,
 			expect: tkn,
 		},
-		{
-			name:   "bad cookie, but good header",
-			header: t64,
-			cookie: "dGVzdAo=",
-			expect: tkn,
-		},
-		{
-			name:   "ok for header",
-			header: t64,
-			expect: tkn,
-		},
-		{
-			name:   "ok for cookie",
-			cookie: t64,
-			expect: tkn,
-		},
+
+		{name: "ok for header", header: t64, expect: tkn},
+		{name: "ok for cookie", cookie: t64, expect: tkn},
 	}

 	for _, tt := range cases {
 		t.Run(tt.name, func(t *testing.T) {
-			var ctx *fasthttp.RequestCtx
-			if !tt.nilCtx {
-				ctx = makeTestRequest(tt.cookie, tt.header)
-			}
-
+			ctx := makeTestRequest(tt.cookie, tt.header)
 			actual, err := fetchBearerToken(ctx)

 			if tt.error == "" {
@ -200,7 +139,7 @@ func makeTestRequest(cookie, header string) *fasthttp.RequestCtx {
 	return ctx
 }

-func TestCheckAndPropagateBearerToken(t *testing.T) {
+func Test_checkAndPropagateBearerToken(t *testing.T) {
 	key, err := keys.NewPrivateKey()
 	require.NoError(t, err)
 	var uid user.ID
@ -223,85 +162,3 @@ func TestCheckAndPropagateBearerToken(t *testing.T) {
 	require.NoError(t, err)
 	require.Equal(t, tkn, actual)
 }
-
-func TestLoadBearerToken(t *testing.T) {
-	ctx := context.Background()
-	token := new(bearer.Token)
-
-	cases := []struct {
-		name   string
-		appCtx context.Context
-		error  string
-	}{
-		{
-			name:   "token is missing in the context",
-			appCtx: ctx,
-			error:  "found empty bearer token",
-		},
-		{
-			name:   "normal",
-			appCtx: context.WithValue(ctx, bearerTokenKey, token),
-		},
-	}
-
-	for _, tt := range cases {
-		t.Run(tt.name, func(t *testing.T) {
-			tkn, err := LoadBearerToken(tt.appCtx)
-
-			if tt.error == "" {
-				require.NoError(t, err)
-				require.Equal(t, token, tkn)
-
-				return
-			}
-
-			require.Contains(t, err.Error(), tt.error)
-		})
-	}
-}
-
-func TestStoreBearerTokenAppCtx(t *testing.T) {
-	key, err := keys.NewPrivateKey()
-	require.NoError(t, err)
-	var uid user.ID
-	user.IDFromKey(&uid, key.PrivateKey.PublicKey)
-
-	tkn := new(bearer.Token)
-	tkn.ForUser(uid)
-
-	t64 := base64.StdEncoding.EncodeToString(tkn.Marshal())
-	require.NotEmpty(t, t64)
-
-	cases := []struct {
-		name  string
-		req   *fasthttp.RequestCtx
-		error string
-	}{
-		{
-			name:  "invalid token",
-			req:   makeTestRequest("dGVzdAo=", ""),
-			error: "can't unmarshal bearer token",
-		},
-		{
-			name: "normal",
-			req:  makeTestRequest(t64, ""),
-		},
-	}
-
-	for _, tt := range cases {
-		t.Run(tt.name, func(t *testing.T) {
-			ctx, err := StoreBearerTokenAppCtx(context.Background(), tt.req)
-
-			if tt.error == "" {
-				require.NoError(t, err)
-				actualToken, ok := ctx.Value(bearerTokenKey).(*bearer.Token)
-				require.True(t, ok)
-				require.Equal(t, tkn, actualToken)
-
-				return
-			}
-
-			require.Contains(t, err.Error(), tt.error)
-		})
-	}
-}
--- a/tree/tree.go
+++ b/tree/tree.go
@ -73,7 +73,6 @@ type Meta interface {

 type NodeResponse interface {
 	GetMeta() []Meta
-	GetTimestamp() uint64
 }

 func newTreeNode(nodeInfo NodeResponse) (*treeNode, error) {
@ -136,7 +135,7 @@ func (c *Tree) GetLatestVersion(ctx context.Context, cnrID *cid.ID, objectName s
 		TreeID:     versionTree,
 		Path:       path,
 		Meta:       meta,
-		LatestOnly: false,
+		LatestOnly: true,
 		AllAttrs:   false,
 	}
 	nodes, err := c.service.GetNodes(ctx, p)
@ -144,43 +143,11 @@ func (c *Tree) GetLatestVersion(ctx context.Context, cnrID *cid.ID, objectName s
 		return nil, err
 	}

-	latestNode, err := getLatestNode(nodes)
-	if err != nil {
-		return nil, err
-	}
-
-	return newNodeVersion(latestNode)
-}
-
-func getLatestNode(nodes []NodeResponse) (NodeResponse, error) {
-	var (
-		maxCreationTime uint64
-		targetIndexNode = -1
-	)
-
-	for i, node := range nodes {
-		currentCreationTime := node.GetTimestamp()
-		if checkExistOID(node.GetMeta()) && currentCreationTime > maxCreationTime {
-			maxCreationTime = currentCreationTime
-			targetIndexNode = i
-		}
-	}
-
-	if targetIndexNode == -1 {
+	if len(nodes) == 0 {
 		return nil, layer.ErrNodeNotFound
 	}

-	return nodes[targetIndexNode], nil
-}
-
-func checkExistOID(meta []Meta) bool {
-	for _, kv := range meta {
-		if kv.GetKey() == "OID" {
-			return true
-		}
-	}
-
-	return false
+	return newNodeVersion(nodes[0])
 }

 // pathFromName splits name by '/'.
--- a/tree/tree_test.go
+++ b/tree/tree_test.go
@ -1,143 +0,0 @@
-package tree
-
-import (
-	"testing"
-
-	"github.com/stretchr/testify/require"
-)
-
-type nodeMeta struct {
-	key   string
-	value []byte
-}
-
-func (m nodeMeta) GetKey() string {
-	return m.key
-}
-
-func (m nodeMeta) GetValue() []byte {
-	return m.value
-}
-
-type nodeResponse struct {
-	meta      []nodeMeta
-	timestamp uint64
-}
-
-func (n nodeResponse) GetTimestamp() uint64 {
-	return n.timestamp
-}
-
-func (n nodeResponse) GetMeta() []Meta {
-	res := make([]Meta, len(n.meta))
-	for i, value := range n.meta {
-		res[i] = value
-	}
-	return res
-}
-
-func TestGetLatestNode(t *testing.T) {
-	for _, tc := range []struct {
-		name        string
-		nodes       []NodeResponse
-		exceptedOID string
-		error       bool
-	}{
-		{
-			name:  "empty",
-			nodes: []NodeResponse{},
-			error: true,
-		},
-		{
-			name: "one node of the object version",
-			nodes: []NodeResponse{
-				nodeResponse{
-					timestamp: 1,
-					meta: []nodeMeta{
-						{
-							key:   oidKV,
-							value: []byte("oid1"),
-						},
-					},
-				},
-			},
-			exceptedOID: "oid1",
-		},
-		{
-			name: "one node of the object version and one node of the secondary object",
-			nodes: []NodeResponse{
-				nodeResponse{
-					timestamp: 3,
-					meta:      []nodeMeta{},
-				},
-				nodeResponse{
-					timestamp: 1,
-					meta: []nodeMeta{
-						{
-							key:   oidKV,
-							value: []byte("oid1"),
-						},
-					},
-				},
-			},
-			exceptedOID: "oid1",
-		},
-		{
-			name: "all nodes represent a secondary object",
-			nodes: []NodeResponse{
-				nodeResponse{
-					timestamp: 3,
-					meta:      []nodeMeta{},
-				},
-				nodeResponse{
-					timestamp: 5,
-					meta:      []nodeMeta{},
-				},
-			},
-			error: true,
-		},
-		{
-			name: "several nodes of different types and with different timestamp",
-			nodes: []NodeResponse{
-				nodeResponse{
-					timestamp: 1,
-					meta: []nodeMeta{
-						{
-							key:   oidKV,
-							value: []byte("oid1"),
-						},
-					},
-				},
-				nodeResponse{
-					timestamp: 3,
-					meta:      []nodeMeta{},
-				},
-				nodeResponse{
-					timestamp: 4,
-					meta: []nodeMeta{
-						{
-							key:   oidKV,
-							value: []byte("oid2"),
-						},
-					},
-				},
-				nodeResponse{
-					timestamp: 6,
-					meta:      []nodeMeta{},
-				},
-			},
-			exceptedOID: "oid2",
-		},
-	} {
-		t.Run(tc.name, func(t *testing.T) {
-			actualNode, err := getLatestNode(tc.nodes)
-			if tc.error {
-				require.Error(t, err)
-				return
-			}
-
-			require.NoError(t, err)
-			require.Equal(t, tc.exceptedOID, string(actualNode.GetMeta()[0].GetValue()))
-		})
-	}
-}
--- a/utils/attributes.go
+++ b/utils/attributes.go
@ -11,18 +11,10 @@ import (
 	"time"
 	"unicode"
 	"unicode/utf8"
+
+	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/pool"
 )

-type EpochDurations struct {
-	CurrentEpoch  uint64
-	MsPerBlock    int64
-	BlockPerEpoch uint64
-}
-
-type EpochInfoFetcher interface {
-	GetEpochDurations(context.Context) (*EpochDurations, error)
-}
-
 const (
 	UserAttributeHeaderPrefix = "X-Attribute-"
 )
@ -159,7 +151,7 @@ func title(str string) string {
 	return string(r0) + str[size:]
 }

-func PrepareExpirationHeader(ctx context.Context, epochFetcher EpochInfoFetcher, headers map[string]string, now time.Time) error {
+func PrepareExpirationHeader(ctx context.Context, p *pool.Pool, headers map[string]string, now time.Time) error {
 	formatsNum := 0
 	index := -1
 	for i, transformer := range transformers {
@ -173,7 +165,7 @@ func PrepareExpirationHeader(ctx context.Context, epochFetcher EpochInfoFetcher,
 	case 0:
 		return nil
 	case 1:
-		epochDuration, err := epochFetcher.GetEpochDurations(ctx)
+		epochDuration, err := GetEpochDurations(ctx, p)
 		if err != nil {
 			return fmt.Errorf("couldn't get epoch durations from network info: %w", err)
 		}
--- a/utils/params.go
+++ b/utils/params.go
@ -0,0 +1,15 @@
+package utils
+
+import (
+	"git.frostfs.info/TrueCloudLab/frostfs-http-gw/resolver"
+	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/pool"
+	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/user"
+	"go.uber.org/zap"
+)
+
+type AppParams struct {
+	Logger   *zap.Logger
+	Pool     *pool.Pool
+	Owner    *user.ID
+	Resolver *resolver.ContainerResolver
+}
--- a/utils/tracing.go
+++ b/utils/tracing.go
@ -30,12 +30,12 @@ func (c *httpCarrier) Set(key string, value string) {
 func (c *httpCarrier) Keys() []string {
 	dict := make(map[string]interface{})
 	c.r.Request.Header.VisitAll(
-		func(key, _ []byte) {
+		func(key, value []byte) {
 			dict[string(key)] = true
 		},
 	)
 	c.r.Response.Header.VisitAll(
-		func(key, _ []byte) {
+		func(key, value []byte) {
 			dict[string(key)] = true
 		},
 	)
--- a/utils/util.go
+++ b/utils/util.go
@ -2,10 +2,36 @@ package utils

 import (
 	"context"
+	"fmt"

+	"git.frostfs.info/TrueCloudLab/frostfs-sdk-go/pool"
 	"github.com/valyala/fasthttp"
 )

+type EpochDurations struct {
+	CurrentEpoch  uint64
+	MsPerBlock    int64
+	BlockPerEpoch uint64
+}
+
+func GetEpochDurations(ctx context.Context, p *pool.Pool) (*EpochDurations, error) {
+	networkInfo, err := p.NetworkInfo(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	res := &EpochDurations{
+		CurrentEpoch:  networkInfo.CurrentEpoch(),
+		MsPerBlock:    networkInfo.MsPerBlock(),
+		BlockPerEpoch: networkInfo.EpochDuration(),
+	}
+
+	if res.BlockPerEpoch == 0 {
+		return nil, fmt.Errorf("EpochDuration is empty")
+	}
+	return res, nil
+}
+
 // SetContextToRequest adds new context to fasthttp request.
 func SetContextToRequest(ctx context.Context, c *fasthttp.RequestCtx) {
 	c.SetUserValue("context", ctx)
Author	SHA1	Message	Date
Denis Kirillov	ca46dc5ec1	[#XX] Don't reload rpc_endpoint for resolvers Signed-off-by: Denis Kirillov <d.kirillov@yadro.com>	2023-10-12 18:08:11 +03:00
Denis Kirillov	eccc3f8077	[#XX] Use contract resolver from sdk Signed-off-by: Denis Kirillov <d.kirillov@yadro.com>	2023-10-12 18:04:22 +03:00
Denis Kirillov	e3b6f534cc	[#XX] Support frostfsid validation Signed-off-by: Denis Kirillov <d.kirillov@yadro.com>	2023-10-05 17:37:34 +03:00