[#xx] Initial implementation

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>

.forgejo/workflows/dco.yml

@@ -1,21 +0,0 @@
-name: DCO action
-on: [pull_request]
-
-jobs:
-  dco:
-    name: DCO
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          fetch-depth: 0
-
-      - name: Setup Go
-        uses: actions/setup-go@v3
-        with:
-          go-version: '1.21'
-
-      - name: Run commit format checker
-        uses: https://git.frostfs.info/TrueCloudLab/dco-go@v3
-        with:
-          from: 'origin/${{ github.event.pull_request.base.ref }}'

.forgejo/workflows/tests.yml

@@ -1,73 +0,0 @@
-name: Tests and linters
-on: [pull_request]
-
-jobs:
-  lint:
-    name: Lint
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Set up Go
-        uses: actions/setup-go@v3
-        with:
-          go-version: '1.21'
-          cache: true
-
-      - name: Install linters
-        run: make lint-install
-
-      - name: Run linters
-        run: make lint
-
-  tests:
-    name: Tests
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        go_versions: [ '1.20', '1.21' ]
-      fail-fast: false
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Set up Go
-        uses: actions/setup-go@v3
-        with:
-          go-version: '${{ matrix.go_versions }}'
-          cache: true
-
-      - name: Run tests
-        run: make test
-
-  tests-race:
-    name: Tests with -race
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Set up Go
-        uses: actions/setup-go@v3
-        with:
-          go-version: '1.21'
-          cache: true
-
-      - name: Run tests
-        run: go test ./... -count=1 -race
-
-  staticcheck:
-    name: Staticcheck
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Set up Go
-        uses: actions/setup-go@v3
-        with:
-          go-version: '1.21'
-          cache: true
-
-      - name: Install staticcheck
-        run: make staticcheck-install
-
-      - name: Run staticcheck
-        run: make staticcheck-run

.gitattributes

@@ -1,4 +1,2 @@
 /**/*.pb.go -diff -merge
 /**/*.pb.go linguist-generated=true
-/**/*_easyjson.go -diff -merge
-/**/*_easyjson.go linguist-generated=true

.golangci.yml

@@ -47,7 +47,7 @@ linters:
     - durationcheck
     - exhaustive
     - exportloopref
-    - gofumpt
+    - gofmt
     - goimports
     - misspell
     - whitespace

.pre-commit-config.yaml

@@ -26,17 +26,14 @@ repos:
       exclude: ".key$"
 
   - repo: https://github.com/shellcheck-py/shellcheck-py
-    rev: v0.9.0.6
+    rev: v0.9.0.2
     hooks:
       - id: shellcheck
 
-  - repo: local
+  - repo: https://github.com/golangci/golangci-lint
+    rev: v1.51.2
     hooks:
-      - id: make-lint
-        name: Run Make Lint
-        entry: make lint
-        language: system
-        pass_filenames: false
+      - id: golangci-lint
 
   - repo: local
     hooks:
@@ -46,9 +43,3 @@ repos:
          pass_filenames: false
          types: [go]
          language: system
-
-  - repo: https://github.com/TekWizely/pre-commit-golang
-    rev: v1.0.0-rc.1
-    hooks:
-       - id: go-staticcheck-repo-mod
-       - id: go-mod-tidy

Makefile

@@ -1,76 +0,0 @@
-#!/usr/bin/make -f
-
-TRUECLOUDLAB_LINT_VERSION ?= 0.0.2
-TMP_DIR := .cache
-OUTPUT_LINT_DIR ?= $(shell pwd)/bin
-LINT_VERSION ?= 1.55.1
-LINT_DIR = $(OUTPUT_LINT_DIR)/golangci-lint-$(LINT_VERSION)-v$(TRUECLOUDLAB_LINT_VERSION)
-EASYJSON_VERSION ?= $(shell go list -f '{{.Version}}' -m github.com/mailru/easyjson)
-EASYJSON_DIR ?= $(shell pwd)/bin/easyjson-$(EASYJSON_VERSION)
-
-# Run all code formatters
-fmts: fmt imports
-
-# Reformat code
-fmt:
-	@echo "⇒ Processing gofmt check"
-	@gofumpt -s -w .
-
-# Reformat imports
-imports:
-	@echo "⇒ Processing goimports check"
-	@goimports -w .
-
-# Run Unit Test with go test
-test:
-	@echo "⇒ Running go test"
-	@go test ./... -count=1
-
-# Activate pre-commit hooks
-pre-commit:
-	pre-commit install -t pre-commit -t commit-msg
-
-# Deactivate pre-commit hooks
-unpre-commit:
-	pre-commit uninstall -t pre-commit -t commit-msg
-
-pre-commit-run:
-	@pre-commit run -a --hook-stage manual
-
-# Install linters
-lint-install:
-	@mkdir -p $(TMP_DIR)
-	@rm -rf $(TMP_DIR)/linters
-	@git -c advice.detachedHead=false clone --branch v$(TRUECLOUDLAB_LINT_VERSION) https://git.frostfs.info/TrueCloudLab/linters.git $(TMP_DIR)/linters
-	@make -C $(TMP_DIR)/linters lib CGO_ENABLED=1 OUT_DIR=$(OUTPUT_LINT_DIR)
-	@rm -rf $(TMP_DIR)/linters
-	@rmdir $(TMP_DIR) 2>/dev/null || true
-	@CGO_ENABLED=1 GOBIN=$(LINT_DIR) go install github.com/golangci/golangci-lint/cmd/golangci-lint@v$(LINT_VERSION)
-
-# Run linters
-lint:
-	@if [ ! -d "$(LINT_DIR)" ]; then \
-		echo "Run make lint-install"; \
-		exit 1; \
-	fi
-	@$(LINT_DIR)/golangci-lint run
-
-# Install staticcheck
-staticcheck-install:
-	@go install honnef.co/go/tools/cmd/staticcheck@latest
-
-# Run staticcheck
-staticcheck-run:
-	@staticcheck ./...
-
-easyjson-install:
-	@rm -rf $(EASYJSON_DIR)
-	@mkdir -p $(EASYJSON_DIR)
-	@GOBIN=$(EASYJSON_DIR) go install github.com/mailru/easyjson/...@$(EASYJSON_VERSION)
-
-generate:
-	@if [ ! -d "$(EASYJSON_DIR)" ]; then \
-		make easyjson-install; \
-	fi
-	find ./ -name "_easyjson.go" -exec rm -rf {} \;
-	$(EASYJSON_DIR)/easyjson ./pkg/chain/chain.go

chain.go

@@ -0,0 +1,193 @@
+package policyengine
+
+import (
+	"bytes"
+	"encoding/gob"
+	"fmt"
+	"strings"
+)
+
+// Engine ...
+type Engine interface {
+	// IsAllowed returns status for the operation after all checks.
+	// The second return value signifies whether a matching rule was found.
+	IsAllowed(name Name, namespace string, r Request) (Status, bool)
+}
+
+type Chain struct {
+	Rules []Rule
+}
+
+func init() {
+	// FIXME #1 (@fyrchik): Introduce more optimal serialization format.
+	gob.Register(Chain{})
+}
+
+func (c *Chain) Bytes() []byte {
+	b := bytes.NewBuffer(nil)
+	e := gob.NewEncoder(b)
+	if err := e.Encode(c); err != nil {
+		panic(err)
+	}
+	return b.Bytes()
+}
+
+func (c *Chain) DecodeBytes(b []byte) error {
+	r := bytes.NewReader(b)
+	d := gob.NewDecoder(r)
+	return d.Decode(c)
+}
+
+type Rule struct {
+	Status Status
+	// Actions the operation is applied to.
+	Action []string
+	// List of the resources the operation is applied to.
+	Resource []string
+	// True iff individual conditions must be combined with the logical OR.
+	// By default AND is used, so _each_ condition must pass.
+	Any       bool
+	Condition []Condition
+}
+
+type Condition struct {
+	Op     ConditionType
+	Object ObjectType
+	Key    string
+	Value  string
+}
+
+type ObjectType byte
+
+const (
+	ObjectResource ObjectType = iota
+	ObjectRequest
+	ObjectActor
+)
+
+// TODO @fyrchik: replace string with int-like type.
+type ConditionType string
+
+// TODO @fyrchik: reduce the number of conditions.
+// Everything from here should be expressable, but we do not need them all.
+// https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_policies_elements_condition_operators.html
+const (
+	// String condition operators.
+	CondStringEquals              ConditionType = "StringEquals"
+	CondStringNotEquals           ConditionType = "StringNotEquals"
+	CondStringEqualsIgnoreCase    ConditionType = "StringEqualsIgnoreCase"
+	CondStringNotEqualsIgnoreCase ConditionType = "StringNotEqualsIgnoreCase"
+	CondStringLike                ConditionType = "StringLike"
+	CondStringNotLike             ConditionType = "StringNotLike"
+
+	// Numeric condition operators.
+	CondNumericEquals            ConditionType = "NumericEquals"
+	CondNumericNotEquals         ConditionType = "NumericNotEquals"
+	CondNumericLessThan          ConditionType = "NumericLessThan"
+	CondNumericLessThanEquals    ConditionType = "NumericLessThanEquals"
+	CondNumericGreaterThan       ConditionType = "NumericGreaterThan"
+	CondNumericGreaterThanEquals ConditionType = "NumericGreaterThanEquals"
+
+	// Date condition operators.
+	CondDateEquals            ConditionType = "DateEquals"
+	CondDateNotEquals         ConditionType = "DateNotEquals"
+	CondDateLessThan          ConditionType = "DateLessThan"
+	CondDateLessThanEquals    ConditionType = "DateLessThanEquals"
+	CondDateGreaterThan       ConditionType = "DateGreaterThan"
+	CondDateGreaterThanEquals ConditionType = "DateGreaterThanEquals"
+
+	// Bolean condition operators.
+	CondBool ConditionType = "Bool"
+
+	// IP address condition operators.
+	CondIPAddress    ConditionType = "IpAddress"
+	CondNotIPAddress ConditionType = "NotIpAddress"
+
+	// ARN condition operators.
+	CondArnEquals    ConditionType = "ArnEquals"
+	CondArnLike      ConditionType = "ArnLike"
+	CondArnNotEquals ConditionType = "ArnNotEquals"
+	CondArnNotLike   ConditionType = "ArnNotLike"
+)
+
+func (c *Condition) Match(obj Request) bool {
+	var val string
+	switch c.Object {
+	case ObjectResource:
+		val = obj.Resource().Property(c.Key)
+	case ObjectRequest:
+		val = obj.Property(c.Key)
+	default:
+		return false
+	}
+
+	switch c.Op {
+	default:
+		panic(fmt.Sprintf("unimplemented: %s", c.Op))
+	case CondStringEquals:
+		return val == c.Value
+	case CondStringNotEquals:
+		return val != c.Value
+	case CondStringEqualsIgnoreCase:
+		return strings.EqualFold(val, c.Value)
+	case CondStringNotEqualsIgnoreCase:
+		return !strings.EqualFold(val, c.Value)
+	case CondStringLike:
+		return globMatch(val, c.Value)
+	case CondStringNotLike:
+		return !globMatch(val, c.Value)
+	}
+}
+
+func (r *Rule) Match(req Request) (status Status, matched bool) {
+	found := len(r.Resource) == 0
+	for i := range r.Resource {
+		if globMatch(req.Resource().Name(), r.Resource[i]) {
+			found = true
+			break
+		}
+	}
+	if !found {
+		return NoRuleFound, false
+	}
+	for i := range r.Action {
+		if globMatch(req.Operation(), r.Action[i]) {
+			return r.matchCondition(req)
+		}
+	}
+	return NoRuleFound, false
+}
+
+func (r *Rule) matchCondition(obj Request) (status Status, matched bool) {
+	if r.Any {
+		return r.matchAny(obj)
+	}
+	return r.matchAll(obj)
+}
+func (r *Rule) matchAny(obj Request) (status Status, matched bool) {
+	for i := range r.Condition {
+		if r.Condition[i].Match(obj) {
+
+			return r.Status, true
+		}
+	}
+	return NoRuleFound, false
+}
+func (r *Rule) matchAll(obj Request) (status Status, matched bool) {
+	for i := range r.Condition {
+		if !r.Condition[i].Match(obj) {
+			return NoRuleFound, false
+		}
+	}
+	return r.Status, true
+}
+
+func (c *Chain) Match(req Request) (status Status, matched bool) {
+	for i := range c.Rules {
+		status, matched := c.Rules[i].Match(req)
+		if matched {
+			return status, true
+		}
+	}
+	return NoRuleFound, false
+}

chain_names.go

@@ -1,4 +1,4 @@
-package chain
+package policyengine
 
 // Name represents the place in the request lifecycle where policy is applied.
 type Name string
@@ -7,7 +7,4 @@ const (
 	// Ingress represents chains applied when crossing user/storage network boundary.
 	// It is not applied when talking between nodes.
 	Ingress Name = "ingress"
-
-	// S3 represents chains applied when crossing user/s3 network boundary.
-	S3 Name = "s3"
 )

chain_test.go

@@ -0,0 +1,33 @@
+package policyengine
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestEncodeDecode(t *testing.T) {
+	expected := Chain{
+		Rules: []Rule{
+			{
+				Status: Allow,
+				Action: []string{
+					"native::PutObject",
+				},
+				Resource: []string{"*"},
+				Condition: []Condition{
+					{
+						Op:    CondStringEquals,
+						Key:   "Name",
+						Value: "NNS",
+					},
+				},
+			},
+		},
+	}
+	data := expected.Bytes()
+
+	var actual Chain
+	require.NoError(t, actual.DecodeBytes(data))
+	require.Equal(t, expected, actual)
+}

docs/resource.md

@@ -1,20 +0,0 @@
-# Resource
-
-From the point of the access policy engine, a resource is an object to which a request is being performed. 
-This can be an object in a container within a namespace, or all objects in a container,
-or all containers within the root namespace etc.
-
-A resource can be viewed from two sides:
- - As part of a [request](../pkg/resource/resource.go). In this case a resource has a name and properties.
- - As part of rule [chain](../pkg/chain/chain.go): a resource has just a name.
-
-## Resource name
-
-A resource name must have a such format that can be processed by a chain router that matches a request
-either with local overrides or with rules within policy contract to get if this request is allowed to be performed.
-The main idea of this format is for the chain router to match by full name (`native:object//cnrID/objID`) or
-wildcard (`native:object//cnrID/*`).
-
-Check out formats that are defined in the schema: [native formats](../schema/native/consts.go), [s3 formats](../schema/s3/consts.go).
-You should validate a resource name using [util](../schema/native/util/validation.go) before instantiating a request or
-before putting it to either to local override storage or the policy contract storage.

error.go

@@ -1,8 +1,8 @@
-package chain
+package policyengine
 
 import "fmt"
 
-// Status is the status for policy application.
+// Status is the status for policy application
 type Status byte
 
 const (

glob.go

@@ -1,4 +1,4 @@
-package util
+package policyengine
 
 import (
 	"strings"
@@ -9,7 +9,7 @@ import (
 // ? in pattern correspond to any symbol.
 // * in pattern correspond to any sequence of symbols.
 // Currently only '*' in the suffix is supported.
-func GlobMatch(s, pattern string) bool {
+func globMatch(s, pattern string) bool {
 	index := strings.IndexByte(pattern, '*')
 	switch index {
 	default:

go.mod

@@ -2,27 +2,10 @@ module git.frostfs.info/TrueCloudLab/policy-engine
 
 go 1.20
 
-require (
-	git.frostfs.info/TrueCloudLab/frostfs-contract v0.18.1-0.20231129062201-a1b61d394958
-	github.com/google/uuid v1.3.0
-	github.com/mailru/easyjson v0.7.7
-	github.com/nspcc-dev/neo-go v0.103.0
-	github.com/stretchr/testify v1.8.4
-	golang.org/x/exp v0.0.0-20230817173708-d852ddb80c63
-)
+require github.com/stretchr/testify v1.8.1
 
 require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.0.1 // indirect
-	github.com/hashicorp/golang-lru v0.6.0 // indirect
-	github.com/josharian/intern v1.0.0 // indirect
-	github.com/mr-tron/base58 v1.2.0 // indirect
-	github.com/nspcc-dev/go-ordered-json v0.0.0-20220111165707-25110be27d22 // indirect
-	github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20231020160724-c3955f87d1b5 // indirect
-	github.com/nspcc-dev/rfc6979 v0.2.0 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
-	golang.org/x/crypto v0.14.0 // indirect
-	golang.org/x/sync v0.3.0 // indirect
-	golang.org/x/text v0.13.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -1,49 +1,17 @@
-git.frostfs.info/TrueCloudLab/frostfs-contract v0.18.1-0.20231129062201-a1b61d394958 h1:X9yPizADIhD3K/gdKVCthlAnf9aQ3UJJGnZgIwwixRQ=
-git.frostfs.info/TrueCloudLab/frostfs-contract v0.18.1-0.20231129062201-a1b61d394958/go.mod h1:rQWdsG18NaiFvkJpMguJev913KD/yleHaniRBkUyt0o=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/decred/dcrd/crypto/blake256 v1.0.0/go.mod h1:sQl2p6Y26YV+ZOcSTP6thNdn47hh8kt6rqSlvmrXFAc=
-github.com/decred/dcrd/dcrec/secp256k1/v4 v4.0.1 h1:YLtO71vCjJRCBcrPMtQ9nqBsqpA1m5sE92cU+pd5Mcc=
-github.com/decred/dcrd/dcrec/secp256k1/v4 v4.0.1/go.mod h1:hyedUtir6IdtD/7lIxGeCxkaw7y45JueMRL4DIyJDKs=
-github.com/golang/snappy v0.0.1 h1:Qgr9rKW7uDUkrbSmQeiDsGa8SjGyCOGtuasMWwvp2P4=
-github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
-github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
-github.com/gorilla/websocket v1.4.2 h1:+/TMaTYc4QFitKJxsQ7Yye35DkWvkdLcvGKqM+x0Ufc=
-github.com/hashicorp/golang-lru v0.6.0 h1:uL2shRDx7RTrOrTCUZEGP/wJUFiUI8QT6E7z5o8jga4=
-github.com/hashicorp/golang-lru v0.6.0/go.mod h1:iADmTwqILo4mZ8BN3D2Q6+9jd8WM5uGBxy+E8yxSoD4=
-github.com/josharian/intern v1.0.0 h1:vlS4z54oSdjm0bgjRigI+G1HpF+tI+9rE5LLzOg8HmY=
-github.com/josharian/intern v1.0.0/go.mod h1:5DoeVV0s6jJacbCEi61lwdGj/aVlrQvzHFFd8Hwg//Y=
-github.com/mailru/easyjson v0.7.7 h1:UGYAvKxe3sBsEDzO8ZeWOSlIQfWFlxbzLZe7hwFURr0=
-github.com/mailru/easyjson v0.7.7/go.mod h1:xzfreul335JAWq5oZzymOObrkdz5UnU4kGfJJLY9Nlc=
-github.com/mr-tron/base58 v1.2.0 h1:T/HDJBh4ZCPbU39/+c3rRvE0uKBQlU27+QI8LJ4t64o=
-github.com/mr-tron/base58 v1.2.0/go.mod h1:BinMc/sQntlIE1frQmRFPUoPA1Zkr8VRgBdjWI2mNwc=
-github.com/nspcc-dev/go-ordered-json v0.0.0-20220111165707-25110be27d22 h1:n4ZaFCKt1pQJd7PXoMJabZWK9ejjbLOVrkl/lOUmshg=
-github.com/nspcc-dev/go-ordered-json v0.0.0-20220111165707-25110be27d22/go.mod h1:79bEUDEviBHJMFV6Iq6in57FEOCMcRhfQnfaf0ETA5U=
-github.com/nspcc-dev/neo-go v0.103.0 h1:UVyWPhzZdfYFG35ORP3FRDLh8J/raRQ6m8SptDdlgfM=
-github.com/nspcc-dev/neo-go v0.103.0/go.mod h1:x+wmcYqpZYJwLp1l/pHZrqNp3RSWlkMymWGDij3/OPo=
-github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20231020160724-c3955f87d1b5 h1:09CpI5uwsxb1EeFPIKQRwwWlfCmDD/Dwwh01lPiQScM=
-github.com/nspcc-dev/neo-go/pkg/interop v0.0.0-20231020160724-c3955f87d1b5/go.mod h1:J/Mk6+nKeKSW4wygkZQFLQ6SkLOSGX5Ga0RuuuktEag=
-github.com/nspcc-dev/rfc6979 v0.2.0 h1:3e1WNxrN60/6N0DW7+UYisLeZJyfqZTNOjeV/toYvOE=
-github.com/nspcc-dev/rfc6979 v0.2.0/go.mod h1:exhIh1PdpDC5vQmyEsGvc4YDM/lyQp/452QxGq/UEso=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
-github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
-github.com/syndtr/goleveldb v1.0.1-0.20210305035536-64b5b1c73954 h1:xQdMZ1WLrgkkvOZ/LDQxjVxMLdby7osSh4ZEVa5sIjs=
-github.com/virtuald/go-ordered-json v0.0.0-20170621173500-b18e6e673d74 h1:JwtAtbp7r/7QSyGz8mKUbYJBg2+6Cd7OjM8o/GNOcVo=
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-go.etcd.io/bbolt v1.3.7 h1:j+zJOnnEjF/kyHlDDgGnVL/AIqIJPq8UoB2GSNfkUfQ=
-golang.org/x/crypto v0.14.0 h1:wBqGXzWJW6m1XrIKlAH0Hs1JJ7+9KBwnIO8v66Q9cHc=
-golang.org/x/crypto v0.14.0/go.mod h1:MVFd36DqK4CsrnJYDkBA3VC4m2GkXAM0PvzMCn4JQf4=
-golang.org/x/exp v0.0.0-20230817173708-d852ddb80c63 h1:m64FZMko/V45gv0bNmrNYoDEq8U5YUhetc9cBWKS1TQ=
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-golang.org/x/text v0.13.0 h1:ablQoSUd0tRdKxZewP80B+BaqeKJuVhuRxj/dkrun3k=
-golang.org/x/text v0.13.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
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 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

iam/converter.go

@@ -1,319 +0,0 @@
-package iam
-
-import (
-	"errors"
-	"fmt"
-	"strconv"
-	"strings"
-	"time"
-	"unicode/utf8"
-
-	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/chain"
-)
-
-const condKeyAWSPrincipalARN = "aws:PrincipalArn"
-
-const (
-	// String condition operators.
-	CondStringEquals              string = "StringEquals"
-	CondStringNotEquals           string = "StringNotEquals"
-	CondStringEqualsIgnoreCase    string = "StringEqualsIgnoreCase"
-	CondStringNotEqualsIgnoreCase string = "StringNotEqualsIgnoreCase"
-	CondStringLike                string = "StringLike"
-	CondStringNotLike             string = "StringNotLike"
-
-	// Numeric condition operators.
-	CondNumericEquals            string = "NumericEquals"
-	CondNumericNotEquals         string = "NumericNotEquals"
-	CondNumericLessThan          string = "NumericLessThan"
-	CondNumericLessThanEquals    string = "NumericLessThanEquals"
-	CondNumericGreaterThan       string = "NumericGreaterThan"
-	CondNumericGreaterThanEquals string = "NumericGreaterThanEquals"
-
-	// Date condition operators.
-	CondDateEquals            string = "DateEquals"
-	CondDateNotEquals         string = "DateNotEquals"
-	CondDateLessThan          string = "DateLessThan"
-	CondDateLessThanEquals    string = "DateLessThanEquals"
-	CondDateGreaterThan       string = "DateGreaterThan"
-	CondDateGreaterThanEquals string = "DateGreaterThanEquals"
-
-	// Bolean condition operators.
-	CondBool string = "Bool"
-
-	// IP address condition operators.
-	CondIPAddress    string = "IpAddress"
-	CondNotIPAddress string = "NotIpAddress"
-
-	// ARN condition operators.
-	CondArnEquals    string = "ArnEquals"
-	CondArnLike      string = "ArnLike"
-	CondArnNotEquals string = "ArnNotEquals"
-	CondArnNotLike   string = "ArnNotLike"
-
-	// Custom condition operators.
-	CondSliceContains string = "SliceContains"
-)
-
-const (
-	arnIAMPrefix     = "arn:aws:iam::"
-	s3ResourcePrefix = "arn:aws:s3:::"
-	s3ActionPrefix   = "s3:"
-	iamActionPrefix  = "iam:"
-)
-
-var (
-	// ErrInvalidPrincipalFormat occurs when principal has unknown/unsupported format.
-	ErrInvalidPrincipalFormat = errors.New("invalid principal format")
-
-	// ErrInvalidResourceFormat occurs when resource has unknown/unsupported format.
-	ErrInvalidResourceFormat = errors.New("invalid resource format")
-
-	// ErrInvalidActionFormat occurs when action has unknown/unsupported format.
-	ErrInvalidActionFormat = errors.New("invalid action format")
-
-	// ErrActionsNotApplicable occurs when failed to convert any actions.
-	ErrActionsNotApplicable = errors.New("actions not applicable")
-)
-
-type formPrincipalConditionFunc func(string) chain.Condition
-
-type transformConditionFunc func(gr GroupedConditions) (GroupedConditions, error)
-
-func convertToChainConditions(c Conditions, transformer transformConditionFunc) ([]GroupedConditions, error) {
-	conditions, err := convertToChainCondition(c)
-	if err != nil {
-		return nil, err
-	}
-
-	for i := range conditions {
-		if conditions[i], err = transformer(conditions[i]); err != nil {
-			return nil, fmt.Errorf("transform condition: %w", err)
-		}
-	}
-
-	return conditions, nil
-}
-
-type GroupedConditions struct {
-	Conditions []chain.Condition
-	Any        bool
-}
-
-func convertToChainCondition(c Conditions) ([]GroupedConditions, error) {
-	var grouped []GroupedConditions
-
-	for op, KVs := range c {
-		condType, convertValue, err := getConditionTypeAndConverter(op)
-		if err != nil {
-			return nil, err
-		}
-
-		for key, values := range KVs {
-			group := GroupedConditions{
-				Conditions: make([]chain.Condition, len(values)),
-				Any:        len(values) > 1,
-			}
-
-			for i, val := range values {
-				converted, err := convertValue(val)
-				if err != nil {
-					return nil, err
-				}
-
-				group.Conditions[i] = chain.Condition{
-					Op:     condType,
-					Object: chain.ObjectRequest,
-					Key:    key,
-					Value:  converted,
-				}
-			}
-			grouped = append(grouped, group)
-		}
-	}
-
-	return grouped, nil
-}
-
-func getConditionTypeAndConverter(op string) (chain.ConditionType, convertFunction, error) {
-	switch {
-	case strings.HasPrefix(op, "String"):
-		switch op {
-		case CondStringEquals:
-			return chain.CondStringEquals, noConvertFunction, nil
-		case CondStringNotEquals:
-			return chain.CondStringNotEquals, noConvertFunction, nil
-		case CondStringEqualsIgnoreCase:
-			return chain.CondStringEqualsIgnoreCase, noConvertFunction, nil
-		case CondStringNotEqualsIgnoreCase:
-			return chain.CondStringNotEqualsIgnoreCase, noConvertFunction, nil
-		case CondStringLike:
-			return chain.CondStringLike, noConvertFunction, nil
-		case CondStringNotLike:
-			return chain.CondStringNotLike, noConvertFunction, nil
-		default:
-			return 0, nil, fmt.Errorf("unsupported condition operator: '%s'", op)
-		}
-	case strings.HasPrefix(op, "Arn"):
-		switch op {
-		case CondArnEquals:
-			return chain.CondStringEquals, noConvertFunction, nil
-		case CondArnNotEquals:
-			return chain.CondStringNotEquals, noConvertFunction, nil
-		case CondArnLike:
-			return chain.CondStringLike, noConvertFunction, nil
-		case CondArnNotLike:
-			return chain.CondStringNotLike, noConvertFunction, nil
-		default:
-			return 0, nil, fmt.Errorf("unsupported condition operator: '%s'", op)
-		}
-	case strings.HasPrefix(op, "Numeric"):
-		// TODO
-		return 0, nil, fmt.Errorf("currently nummeric conditions unsupported: '%s'", op)
-	case strings.HasPrefix(op, "Date"):
-		switch op {
-		case CondDateEquals:
-			return chain.CondStringEquals, dateConvertFunction, nil
-		case CondDateNotEquals:
-			return chain.CondStringNotEquals, dateConvertFunction, nil
-		case CondDateLessThan:
-			return chain.CondStringLessThan, dateConvertFunction, nil
-		case CondDateLessThanEquals:
-			return chain.CondStringLessThanEquals, dateConvertFunction, nil
-		case CondDateGreaterThan:
-			return chain.CondStringGreaterThan, dateConvertFunction, nil
-		case CondDateGreaterThanEquals:
-			return chain.CondStringGreaterThanEquals, dateConvertFunction, nil
-		default:
-			return 0, nil, fmt.Errorf("unsupported condition operator: '%s'", op)
-		}
-	case op == CondBool:
-		return chain.CondStringEqualsIgnoreCase, noConvertFunction, nil
-	case op == CondIPAddress:
-		// todo consider using converters
-		//  "203.0.113.0/24" -> "203.0.113.*",
-		//  "2001:DB8:1234:5678::/64" -> "2001:DB8:1234:5678:*"
-		//  or having specific condition type for IP
-		return chain.CondStringLike, noConvertFunction, nil
-	case op == CondNotIPAddress:
-		return chain.CondStringNotLike, noConvertFunction, nil
-	case op == CondSliceContains:
-		return chain.CondSliceContains, noConvertFunction, nil
-	default:
-		return 0, nil, fmt.Errorf("unsupported condition operator: '%s'", op)
-	}
-}
-
-type convertFunction func(string) (string, error)
-
-func noConvertFunction(val string) (string, error) {
-	return val, nil
-}
-
-func dateConvertFunction(val string) (string, error) {
-	if _, err := strconv.ParseInt(val, 10, 64); err == nil {
-		return val, nil
-	}
-
-	parsed, err := time.Parse(time.RFC3339, val)
-	if err != nil {
-		return "", err
-	}
-
-	return strconv.FormatInt(parsed.UTC().Unix(), 10), nil
-}
-
-func parsePrincipalAsIAMUser(principal string) (account string, user string, err error) {
-	if !strings.HasPrefix(principal, arnIAMPrefix) {
-		return "", "", ErrInvalidPrincipalFormat
-	}
-
-	// iam arn format arn:aws:iam::<account>:user/<user-name-with-path>
-	iamResource := strings.TrimPrefix(principal, arnIAMPrefix)
-	sepIndex := strings.Index(iamResource, ":user/")
-	if sepIndex < 0 {
-		return "", "", ErrInvalidPrincipalFormat
-	}
-
-	account = iamResource[:sepIndex]
-	user = iamResource[sepIndex+6:]
-	if len(user) == 0 {
-		return "", "", ErrInvalidPrincipalFormat
-	}
-
-	userNameIndex := strings.LastIndexByte(user, '/')
-	if userNameIndex > -1 {
-		user = user[userNameIndex+1:]
-		if len(user) == 0 {
-			return "", "", ErrInvalidPrincipalFormat
-		}
-	}
-
-	return account, user, nil
-}
-
-func validateResource(resource string) error {
-	if resource == Wildcard {
-		return nil
-	}
-
-	if !strings.HasPrefix(resource, s3ResourcePrefix) && !strings.HasPrefix(resource, arnIAMPrefix) {
-		return ErrInvalidResourceFormat
-	}
-
-	index := strings.IndexByte(resource, Wildcard[0])
-	if index != -1 && index != utf8.RuneCountInString(resource)-1 {
-		return ErrInvalidResourceFormat
-	}
-
-	return nil
-}
-
-func validateAction(action string) error {
-	if action == Wildcard {
-		return nil
-	}
-
-	if !strings.HasPrefix(action, s3ActionPrefix) && !strings.HasPrefix(action, iamActionPrefix) {
-		return ErrInvalidActionFormat
-	}
-
-	index := strings.IndexByte(action, Wildcard[0])
-	if index != -1 && index != utf8.RuneCountInString(action)-1 {
-		return ErrInvalidActionFormat
-	}
-
-	return nil
-}
-
-func splitGroupedConditions(groupedConditions []GroupedConditions) [][]chain.Condition {
-	var orConditions []chain.Condition
-	commonConditions := make([]chain.Condition, 0, len(groupedConditions))
-	for _, grouped := range groupedConditions {
-		if grouped.Any {
-			orConditions = append(orConditions, grouped.Conditions...)
-		} else {
-			commonConditions = append(commonConditions, grouped.Conditions...)
-		}
-	}
-
-	if len(orConditions) == 0 {
-		return [][]chain.Condition{commonConditions}
-	}
-
-	res := make([][]chain.Condition, len(orConditions))
-	for i, condition := range orConditions {
-		res[i] = append([]chain.Condition{condition}, commonConditions...)
-	}
-
-	return res
-}
-
-func formStatus(statement Statement) chain.Status {
-	status := chain.AccessDenied
-	if statement.Effect == AllowEffect {
-		status = chain.Allow
-	}
-
-	return status
-}

iam/converter_native.go

@@ -1,355 +0,0 @@
-package iam
-
-import (
-	"fmt"
-	"strings"
-
-	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/chain"
-	"git.frostfs.info/TrueCloudLab/policy-engine/schema/native"
-)
-
-const PropertyKeyFilePath = "FilePath"
-
-var supportedActionToNativeOpMap = map[string][]string{
-	supportedS3NativeActionDeleteObject: {native.MethodDeleteObject, native.MethodHeadObject},
-	supportedS3NativeActionHeadObject:   {native.MethodHeadObject},
-	supportedS3NativeActionGetObject:    {native.MethodGetObject, native.MethodHeadObject, native.MethodSearchObject, native.MethodRangeObject, native.MethodHashObject},
-	supportedS3NativeActionPutObject:    {native.MethodPutObject},
-	supportedS3NativeActionListBucket:   {native.MethodGetContainer, native.MethodGetObject, native.MethodHeadObject, native.MethodSearchObject, native.MethodRangeObject, native.MethodHashObject},
-
-	supportedS3NativeActionCreateBucket:    {native.MethodPutContainer},
-	supportedS3NativeActionDeleteBucket:    {native.MethodDeleteContainer},
-	supportedS3NativeActionListAllMyBucket: {native.MethodListContainers},
-	supportedS3NativeActionPutBucketACL:    {native.MethodSetContainerEACL},
-	supportedS3NativeActionGetBucketACL:    {native.MethodGetContainerEACL},
-}
-
-var containerNativeOperations = map[string]struct{}{
-	native.MethodPutContainer:     {},
-	native.MethodDeleteContainer:  {},
-	native.MethodGetContainer:     {},
-	native.MethodListContainers:   {},
-	native.MethodSetContainerEACL: {},
-	native.MethodGetContainerEACL: {},
-}
-
-var objectNativeOperations = map[string]struct{}{
-	native.MethodGetObject:    {},
-	native.MethodPutObject:    {},
-	native.MethodHeadObject:   {},
-	native.MethodDeleteObject: {},
-	native.MethodSearchObject: {},
-	native.MethodRangeObject:  {},
-	native.MethodHashObject:   {},
-}
-
-const (
-	supportedS3NativeActionDeleteObject = "s3:DeleteObject"
-	supportedS3NativeActionGetObject    = "s3:GetObject"
-	supportedS3NativeActionHeadObject   = "s3:HeadObject"
-	supportedS3NativeActionPutObject    = "s3:PutObject"
-	supportedS3NativeActionListBucket   = "s3:ListBucket"
-
-	supportedS3NativeActionCreateBucket    = "s3:CreateBucket"
-	supportedS3NativeActionDeleteBucket    = "s3:DeleteBucket"
-	supportedS3NativeActionListAllMyBucket = "s3:ListAllMyBuckets"
-	supportedS3NativeActionPutBucketACL    = "s3:PutBucketAcl"
-	supportedS3NativeActionGetBucketACL    = "s3:GetBucketAcl"
-)
-
-type NativeResolver interface {
-	GetUserKey(account, name string) (string, error)
-	GetBucketInfo(bucket string) (*BucketInfo, error)
-}
-
-type BucketInfo struct {
-	Namespace string
-	Container string
-}
-
-func ConvertToNativeChain(p Policy, resolver NativeResolver) (*chain.Chain, error) {
-	if err := p.Validate(ResourceBasedPolicyType); err != nil {
-		return nil, err
-	}
-
-	var engineChain chain.Chain
-
-	for _, statement := range p.Statement {
-		status := formStatus(statement)
-
-		action, actionInverted := statement.action()
-		nativeActions, err := formNativeActionNames(action)
-		if err != nil {
-			return nil, err
-		}
-		ruleAction := chain.Actions{Inverted: actionInverted, Names: nativeActions}
-		if len(ruleAction.Names) == 0 {
-			continue
-		}
-
-		resource, resourceInverted := statement.resource()
-		groupedResources, err := formNativeResourceNamesAndConditions(resource, resolver, getActionTypes(nativeActions))
-		if err != nil {
-			return nil, err
-		}
-
-		groupedConditions, err := convertToNativeChainCondition(statement.Conditions, resolver)
-		if err != nil {
-			return nil, err
-		}
-		splitConditions := splitGroupedConditions(groupedConditions)
-
-		principals, principalCondFn, err := getNativePrincipalsAndConditionFunc(statement, resolver)
-		if err != nil {
-			return nil, err
-		}
-
-		for _, groupedResource := range groupedResources {
-			for _, principal := range principals {
-				for _, conditions := range splitConditions {
-					var principalCondition []chain.Condition
-					if principal != Wildcard {
-						principalCondition = []chain.Condition{principalCondFn(principal)}
-					}
-
-					ruleConditions := append(principalCondition, groupedResource.Conditions...)
-
-					r := chain.Rule{
-						Status:  status,
-						Actions: ruleAction,
-						Resources: chain.Resources{
-							Inverted: resourceInverted,
-							Names:    groupedResource.Names,
-						},
-						Condition: append(ruleConditions, conditions...),
-					}
-					engineChain.Rules = append(engineChain.Rules, r)
-				}
-			}
-		}
-	}
-
-	if len(engineChain.Rules) == 0 {
-		return nil, ErrActionsNotApplicable
-	}
-
-	return &engineChain, nil
-}
-
-func getActionTypes(nativeActions []string) ActionTypes {
-	var res ActionTypes
-	for _, action := range nativeActions {
-		if res.Object && res.Container {
-			break
-		}
-
-		_, isObj := objectNativeOperations[action]
-		_, isCnr := containerNativeOperations[action]
-
-		res.Object = isObj || action == Wildcard
-		res.Container = isCnr || action == Wildcard
-	}
-
-	return res
-}
-
-func getNativePrincipalsAndConditionFunc(statement Statement, resolver NativeResolver) ([]string, formPrincipalConditionFunc, error) {
-	var principals []string
-	var op chain.ConditionType
-	statementPrincipal, inverted := statement.principal()
-	if _, ok := statementPrincipal[Wildcard]; ok { // this can be true only if 'inverted' false
-		principals = []string{Wildcard}
-		op = chain.CondStringLike
-	} else {
-		for principalType, principal := range statementPrincipal {
-			if principalType != AWSPrincipalType {
-				return nil, nil, fmt.Errorf("unsupported principal type '%s'", principalType)
-			}
-			parsedPrincipal, err := formNativePrincipal(principal, resolver)
-			if err != nil {
-				return nil, nil, fmt.Errorf("parse principal: %w", err)
-			}
-			principals = append(principals, parsedPrincipal...)
-		}
-
-		op = chain.CondStringEquals
-		if inverted {
-			op = chain.CondStringNotEquals
-		}
-	}
-
-	return principals, func(principal string) chain.Condition {
-		return chain.Condition{
-			Op:     op,
-			Object: chain.ObjectRequest,
-			Key:    native.PropertyKeyActorPublicKey,
-			Value:  principal,
-		}
-	}, nil
-}
-
-func convertToNativeChainCondition(c Conditions, resolver NativeResolver) ([]GroupedConditions, error) {
-	return convertToChainConditions(c, func(gr GroupedConditions) (GroupedConditions, error) {
-		for i := range gr.Conditions {
-			if gr.Conditions[i].Key == condKeyAWSPrincipalARN {
-				gr.Conditions[i].Key = native.PropertyKeyActorPublicKey
-				val, err := formPrincipalKey(gr.Conditions[i].Value, resolver)
-				if err != nil {
-					return GroupedConditions{}, err
-				}
-				gr.Conditions[i].Value = val
-			}
-		}
-
-		return gr, nil
-	})
-}
-
-type GroupedResources struct {
-	Names      []string
-	Conditions []chain.Condition
-}
-
-type ActionTypes struct {
-	Object    bool
-	Container bool
-}
-
-func formNativeResourceNamesAndConditions(names []string, resolver NativeResolver, actionTypes ActionTypes) ([]GroupedResources, error) {
-	if !actionTypes.Object && !actionTypes.Container {
-		return nil, ErrActionsNotApplicable
-	}
-
-	res := make([]GroupedResources, 0, len(names))
-
-	var combined []string
-
-	for _, resource := range names {
-		if err := validateResource(resource); err != nil {
-			return nil, err
-		}
-
-		if resource == Wildcard {
-			res = res[:0]
-			return append(res, formWildcardNativeResource(actionTypes)), nil
-		}
-
-		if !strings.HasPrefix(resource, s3ResourcePrefix) {
-			continue
-		}
-
-		var bkt, obj string
-		s3Resource := strings.TrimPrefix(resource, s3ResourcePrefix)
-		if s3Resource == Wildcard {
-			res = res[:0]
-			return append(res, formWildcardNativeResource(actionTypes)), nil
-		}
-
-		if sepIndex := strings.Index(s3Resource, "/"); sepIndex < 0 {
-			bkt = s3Resource
-		} else {
-			bkt = s3Resource[:sepIndex]
-			obj = s3Resource[sepIndex+1:]
-			if len(obj) == 0 {
-				obj = Wildcard
-			}
-		}
-
-		bktInfo, err := resolver.GetBucketInfo(bkt)
-		if err != nil {
-			return nil, err
-		}
-
-		if obj == Wildcard && actionTypes.Object { // this corresponds to arn:aws:s3:::BUCKET/ or arn:aws:s3:::BUCKET/*
-			combined = append(combined, fmt.Sprintf(native.ResourceFormatNamespaceContainerObjects, bktInfo.Namespace, bktInfo.Container))
-			continue
-		}
-		if obj == "" && actionTypes.Container { // this corresponds to arn:aws:s3:::BUCKET
-			combined = append(combined, fmt.Sprintf(native.ResourceFormatNamespaceContainer, bktInfo.Namespace, bktInfo.Container))
-			continue
-		}
-
-		res = append(res, GroupedResources{
-			Names: []string{fmt.Sprintf(native.ResourceFormatNamespaceContainerObjects, bktInfo.Namespace, bktInfo.Container)},
-			Conditions: []chain.Condition{
-				{
-					Op:     chain.CondStringLike,
-					Object: chain.ObjectResource,
-					Key:    PropertyKeyFilePath,
-					Value:  obj,
-				},
-			},
-		})
-	}
-
-	if len(combined) != 0 {
-		res = append(res, GroupedResources{Names: combined})
-	}
-
-	return res, nil
-}
-
-func formWildcardNativeResource(actionTypes ActionTypes) GroupedResources {
-	groupedNames := make([]string, 0, 2)
-	if actionTypes.Object {
-		groupedNames = append(groupedNames, native.ResourceFormatAllObjects)
-	}
-	if actionTypes.Container {
-		groupedNames = append(groupedNames, native.ResourceFormatAllContainers)
-	}
-
-	return GroupedResources{Names: groupedNames}
-}
-
-func formNativePrincipal(principal []string, resolver NativeResolver) ([]string, error) {
-	res := make([]string, len(principal))
-
-	var err error
-	for i := range principal {
-		if res[i], err = formPrincipalKey(principal[i], resolver); err != nil {
-			return nil, err
-		}
-	}
-
-	return res, nil
-}
-
-func formPrincipalKey(principal string, resolver NativeResolver) (string, error) {
-	account, user, err := parsePrincipalAsIAMUser(principal)
-	if err != nil {
-		return "", err
-	}
-
-	key, err := resolver.GetUserKey(account, user)
-	if err != nil {
-		return "", fmt.Errorf("get user key: %w", err)
-	}
-
-	return key, nil
-}
-
-func formNativeActionNames(names []string) ([]string, error) {
-	res := make([]string, 0, len(names))
-
-	for _, action := range names {
-		if err := validateAction(action); err != nil {
-			return nil, err
-		}
-
-		if action == Wildcard {
-			return []string{Wildcard}, nil
-		}
-
-		if !strings.HasPrefix(action, s3ActionPrefix) {
-			continue
-		}
-
-		if strings.TrimPrefix(action, s3ActionPrefix) == Wildcard {
-			return []string{Wildcard}, nil
-		}
-
-		res = append(res, supportedActionToNativeOpMap[action]...)
-	}
-
-	return res, nil
-}

iam/converter_s3.go

@@ -1,255 +0,0 @@
-package iam
-
-import (
-	"fmt"
-
-	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/chain"
-	"git.frostfs.info/TrueCloudLab/policy-engine/schema/s3"
-)
-
-var specialActionToS3OpMap = map[string][]string{
-	specialS3ActionsListAllMyBuckets:                 {"s3:ListBuckets"},
-	specialS3ActionsListBucket:                       {"s3:HeadBucket", "s3:GetBucketLocation", "s3:ListObjectsV1", "s3:ListObjectsV2"},
-	specialS3ActionsListBucketVersions:               {"s3:ListBucketObjectVersions"},
-	specialS3ActionsListBucketMultipartUploads:       {"s3:ListMultipartUploads"},
-	specialS3ActionsGetBucketObjectLockConfiguration: {"s3:GetBucketObjectLockConfig"},
-	specialS3ActionsGetEncryptionConfiguration:       {"s3:GetBucketEncryption"},
-	specialS3ActionsGetLifecycleConfiguration:        {"s3:GetBucketLifecycle"},
-	specialS3ActionsGetBucketACL:                     {"s3:GetBucketACL"},
-	specialS3ActionsGetBucketCORS:                    {"s3:GetBucketCors"},
-	specialS3ActionsPutBucketTagging:                 {"s3:PutBucketTagging", "s3:DeleteBucketTagging"},
-	specialS3ActionsPutBucketObjectLockConfiguration: {"s3:PutBucketObjectLockConfig"},
-	specialS3ActionsPutEncryptionConfiguration:       {"s3:PutBucketEncryption", "s3:DeleteBucketEncryption"},
-	specialS3ActionsPutLifecycleConfiguration:        {"s3:PutBucketLifecycle", "s3:DeleteBucketLifecycle"},
-	specialS3ActionsPutBucketACL:                     {"s3:PutBucketACL"},
-	specialS3ActionsPutBucketCORS:                    {"s3:PutBucketCors", "s3:DeleteBucketCors"},
-	specialS3ActionsDeleteBucketCORS:                 {"s3:DeleteBucketCors"},
-
-	specialS3ActionsListMultipartUploadParts:   {"s3:ListParts"},
-	specialS3ActionsGetObjectACL:               {"s3:GetObjectACL"},
-	specialS3ActionsGetObject:                  {"s3:GetObject", "s3:HeadObject"},
-	specialS3ActionsGetObjectVersion:           {"s3:GetObject", "s3:HeadObject"},
-	specialS3ActionsGetObjectVersionACL:        {"s3:GetObjectACL"},
-	specialS3ActionsGetObjectVersionAttributes: {"s3:GetObjectAttributes"},
-	specialS3ActionsGetObjectVersionTagging:    {"s3:GetObjectTagging"},
-	specialS3ActionsPutObjectACL:               {"s3:PutObjectACL"},
-	specialS3ActionsPutObjectVersionACL:        {"s3:PutObjectACL"},
-	specialS3ActionsPutObjectVersionTagging:    {"s3:PutObjectTagging"},
-	specialS3ActionsPutObject: {
-		"s3:PutObject", "s3:PostObject", "s3:CopyObject",
-		"s3:UploadPart", "s3:UploadPartCopy", "s3:CreateMultipartUpload", "s3:CompleteMultipartUpload",
-	},
-	specialS3ActionsDeleteObjectVersionTagging: {"s3:DeleteObjectTagging"},
-	specialS3ActionsDeleteObject:               {"s3:DeleteObject", "s3:DeleteMultipleObjects"},
-	specialS3ActionsDeleteObjectVersion:        {"s3:DeleteObject", "s3:DeleteMultipleObjects"},
-}
-
-const (
-	specialS3ActionsListAllMyBuckets                 = "s3:ListAllMyBuckets"
-	specialS3ActionsListBucket                       = "s3:ListBucket"
-	specialS3ActionsListBucketVersions               = "s3:ListBucketVersions"
-	specialS3ActionsListBucketMultipartUploads       = "s3:ListBucketMultipartUploads"
-	specialS3ActionsGetBucketObjectLockConfiguration = "s3:GetBucketObjectLockConfiguration"
-	specialS3ActionsGetEncryptionConfiguration       = "s3:GetEncryptionConfiguration"
-	specialS3ActionsGetLifecycleConfiguration        = "s3:GetLifecycleConfiguration"
-	specialS3ActionsGetBucketACL                     = "s3:GetBucketAcl"
-	specialS3ActionsGetBucketCORS                    = "s3:GetBucketCORS"
-	specialS3ActionsPutBucketTagging                 = "s3:PutBucketTagging"
-	specialS3ActionsPutBucketObjectLockConfiguration = "s3:PutBucketObjectLockConfiguration"
-	specialS3ActionsPutEncryptionConfiguration       = "s3:PutEncryptionConfiguration"
-	specialS3ActionsPutLifecycleConfiguration        = "s3:PutLifecycleConfiguration"
-	specialS3ActionsPutBucketACL                     = "s3:PutBucketAcl"
-	specialS3ActionsPutBucketCORS                    = "s3:PutBucketCORS"
-	specialS3ActionsDeleteBucketCORS                 = "s3:DeleteBucketCORS"
-	specialS3ActionsListMultipartUploadParts         = "s3:ListMultipartUploadParts"
-	specialS3ActionsGetObjectACL                     = "s3:GetObjectAcl"
-	specialS3ActionsGetObject                        = "s3:GetObject"
-	specialS3ActionsGetObjectVersion                 = "s3:GetObjectVersion"
-	specialS3ActionsGetObjectVersionACL              = "s3:GetObjectVersionAcl"
-	specialS3ActionsGetObjectVersionAttributes       = "s3:GetObjectVersionAttributes"
-	specialS3ActionsGetObjectVersionTagging          = "s3:GetObjectVersionTagging"
-	specialS3ActionsPutObjectACL                     = "s3:PutObjectAcl"
-	specialS3ActionsPutObjectVersionACL              = "s3:PutObjectVersionAcl"
-	specialS3ActionsPutObjectVersionTagging          = "s3:PutObjectVersionTagging"
-	specialS3ActionsPutObject                        = "s3:PutObject"
-	specialS3ActionsDeleteObjectVersionTagging       = "s3:DeleteObjectVersionTagging"
-	specialS3ActionsDeleteObject                     = "s3:DeleteObject"
-	specialS3ActionsDeleteObjectVersion              = "s3:DeleteObjectVersion"
-)
-
-type S3Resolver interface {
-	GetUserAddress(account, user string) (string, error)
-}
-
-func ConvertToS3Chain(p Policy, resolver S3Resolver) (*chain.Chain, error) {
-	if err := p.Validate(ResourceBasedPolicyType); err != nil {
-		return nil, err
-	}
-
-	var engineChain chain.Chain
-
-	for _, statement := range p.Statement {
-		status := formStatus(statement)
-
-		actions, actionInverted := statement.action()
-		s3Actions, err := formS3ActionNames(actions)
-		if err != nil {
-			return nil, err
-		}
-		ruleAction := chain.Actions{Inverted: actionInverted, Names: s3Actions}
-		if len(ruleAction.Names) == 0 {
-			continue
-		}
-
-		resources, resourceInverted := statement.resource()
-		if err := validateS3ResourceNames(resources); err != nil {
-			return nil, err
-		}
-		ruleResource := chain.Resources{Inverted: resourceInverted, Names: resources}
-
-		groupedConditions, err := convertToS3ChainCondition(statement.Conditions, resolver)
-		if err != nil {
-			return nil, err
-		}
-		splitConditions := splitGroupedConditions(groupedConditions)
-
-		principals, principalCondFn, err := getS3PrincipalsAndConditionFunc(statement, resolver)
-		if err != nil {
-			return nil, err
-		}
-
-		for _, principal := range principals {
-			for _, conditions := range splitConditions {
-				var principalCondition []chain.Condition
-				if principal != Wildcard {
-					principalCondition = []chain.Condition{principalCondFn(principal)}
-				}
-
-				r := chain.Rule{
-					Status:    status,
-					Actions:   ruleAction,
-					Resources: ruleResource,
-					Condition: append(principalCondition, conditions...),
-				}
-				engineChain.Rules = append(engineChain.Rules, r)
-			}
-		}
-	}
-
-	if len(engineChain.Rules) == 0 {
-		return nil, ErrActionsNotApplicable
-	}
-
-	return &engineChain, nil
-}
-
-func getS3PrincipalsAndConditionFunc(statement Statement, resolver S3Resolver) ([]string, formPrincipalConditionFunc, error) {
-	var principals []string
-	var op chain.ConditionType
-	statementPrincipal, inverted := statement.principal()
-	if _, ok := statementPrincipal[Wildcard]; ok { // this can be true only if 'inverted' false
-		principals = []string{Wildcard}
-		op = chain.CondStringLike
-	} else {
-		for principalType, principal := range statementPrincipal {
-			if principalType != AWSPrincipalType {
-				return nil, nil, fmt.Errorf("unsupported principal type '%s'", principalType)
-			}
-			parsedPrincipal, err := formS3Principal(principal, resolver)
-			if err != nil {
-				return nil, nil, fmt.Errorf("parse principal: %w", err)
-			}
-			principals = append(principals, parsedPrincipal...)
-		}
-
-		op = chain.CondStringEquals
-		if inverted {
-			op = chain.CondStringNotEquals
-		}
-	}
-
-	return principals, func(principal string) chain.Condition {
-		return chain.Condition{
-			Op:     op,
-			Object: chain.ObjectRequest,
-			Key:    s3.PropertyKeyOwner,
-			Value:  principal,
-		}
-	}, nil
-}
-
-func convertToS3ChainCondition(c Conditions, resolver S3Resolver) ([]GroupedConditions, error) {
-	return convertToChainConditions(c, func(gr GroupedConditions) (GroupedConditions, error) {
-		for i := range gr.Conditions {
-			if gr.Conditions[i].Key == condKeyAWSPrincipalARN {
-				gr.Conditions[i].Key = s3.PropertyKeyOwner
-				val, err := formPrincipalOwner(gr.Conditions[i].Value, resolver)
-				if err != nil {
-					return GroupedConditions{}, err
-				}
-				gr.Conditions[i].Value = val
-			}
-		}
-
-		return gr, nil
-	})
-}
-
-func formS3Principal(principal []string, resolver S3Resolver) ([]string, error) {
-	res := make([]string, len(principal))
-
-	var err error
-	for i := range principal {
-		if res[i], err = formPrincipalOwner(principal[i], resolver); err != nil {
-			return nil, err
-		}
-	}
-
-	return res, nil
-}
-
-func formPrincipalOwner(principal string, resolver S3Resolver) (string, error) {
-	account, user, err := parsePrincipalAsIAMUser(principal)
-	if err != nil {
-		return "", err
-	}
-
-	address, err := resolver.GetUserAddress(account, user)
-	if err != nil {
-		return "", fmt.Errorf("get user address: %w", err)
-	}
-
-	return address, nil
-}
-
-func validateS3ResourceNames(names []string) error {
-	for i := range names {
-		if err := validateResource(names[i]); err != nil {
-			return err
-		}
-	}
-
-	return nil
-}
-
-func formS3ActionNames(names []string) ([]string, error) {
-	res := make([]string, 0, len(names))
-
-	for _, action := range names {
-		if err := validateAction(action); err != nil {
-			return nil, err
-		}
-
-		if action == Wildcard {
-			return []string{Wildcard}, nil
-		}
-
-		if actions, ok := specialActionToS3OpMap[action]; ok {
-			res = append(res, actions...)
-		} else {
-			res = append(res, action)
-		}
-	}
-
-	return res, nil
-}

iam/policy.go

@@ -1,318 +0,0 @@
-package iam
-
-import (
-	"encoding/json"
-	"errors"
-	"fmt"
-)
-
-type (
-	// Policy grammar https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_policies_grammar.html
-	Policy struct {
-		Version   string     `json:"Version,omitempty"`
-		ID        string     `json:"Id,omitempty"`
-		Statement Statements `json:"Statement"`
-	}
-
-	Statements []Statement
-
-	Statement struct {
-		ID           string     `json:"Id,omitempty"`
-		SID          string     `json:"Sid,omitempty"`
-		Principal    Principal  `json:"Principal,omitempty"`
-		NotPrincipal Principal  `json:"NotPrincipal,omitempty"`
-		Effect       Effect     `json:"Effect"`
-		Action       Action     `json:"Action,omitempty"`
-		NotAction    Action     `json:"NotAction,omitempty"`
-		Resource     Resource   `json:"Resource,omitempty"`
-		NotResource  Resource   `json:"NotResource,omitempty"`
-		Conditions   Conditions `json:"Condition,omitempty"`
-	}
-
-	Principal map[PrincipalType][]string
-
-	Effect string
-
-	Action []string
-
-	Resource []string
-
-	Conditions map[string]Condition
-
-	Condition map[string][]string
-
-	PolicyType int
-
-	PrincipalType string
-)
-
-const (
-	GeneralPolicyType PolicyType = iota
-	IdentityBasedPolicyType
-	ResourceBasedPolicyType
-)
-
-const Wildcard = "*"
-
-const (
-	AllowEffect Effect = "Allow"
-	DenyEffect  Effect = "Deny"
-)
-
-func (e Effect) IsValid() bool {
-	return e == AllowEffect || e == DenyEffect
-}
-
-const (
-	AWSPrincipalType           PrincipalType = "AWS"
-	FederatedPrincipalType     PrincipalType = "Federated"
-	ServicePrincipalType       PrincipalType = "Service"
-	CanonicalUserPrincipalType PrincipalType = "CanonicalUser"
-)
-
-func (p PrincipalType) IsValid() bool {
-	return p == AWSPrincipalType || p == FederatedPrincipalType ||
-		p == ServicePrincipalType || p == CanonicalUserPrincipalType
-}
-
-func (s *Statements) UnmarshalJSON(data []byte) error {
-	var list []Statement
-	if err := json.Unmarshal(data, &list); err == nil {
-		*s = list
-		return nil
-	}
-
-	var elem Statement
-	if err := json.Unmarshal(data, &elem); err != nil {
-		return err
-	}
-
-	*s = []Statement{elem}
-
-	return nil
-}
-
-func (p *Principal) UnmarshalJSON(data []byte) error {
-	*p = make(Principal)
-
-	var str string
-
-	if err := json.Unmarshal(data, &str); err == nil {
-		if str != Wildcard {
-			return errors.New("invalid IAM string principal")
-		}
-		(*p)[Wildcard] = nil
-		return nil
-	}
-
-	m := make(map[PrincipalType]any)
-	if err := json.Unmarshal(data, &m); err != nil {
-		return err
-	}
-
-	for key, val := range m {
-		element, ok := val.(string)
-		if ok {
-			(*p)[key] = []string{element}
-			continue
-		}
-
-		list, ok := val.([]any)
-		if !ok {
-			return errors.New("invalid principal format")
-		}
-
-		resList := make([]string, len(list))
-		for i := range list {
-			val, ok := list[i].(string)
-			if !ok {
-				return errors.New("invalid principal format")
-			}
-			resList[i] = val
-		}
-
-		(*p)[key] = resList
-	}
-
-	return nil
-}
-
-func (a *Action) UnmarshalJSON(data []byte) error {
-	var list []string
-	if err := json.Unmarshal(data, &list); err == nil {
-		*a = list
-		return nil
-	}
-
-	var elem string
-	if err := json.Unmarshal(data, &elem); err != nil {
-		return err
-	}
-
-	*a = []string{elem}
-
-	return nil
-}
-
-func (r *Resource) UnmarshalJSON(data []byte) error {
-	var list []string
-	if err := json.Unmarshal(data, &list); err == nil {
-		*r = list
-		return nil
-	}
-
-	var elem string
-	if err := json.Unmarshal(data, &elem); err != nil {
-		return err
-	}
-
-	*r = []string{elem}
-
-	return nil
-}
-
-func (c *Condition) UnmarshalJSON(data []byte) error {
-	*c = make(Condition)
-
-	m := make(map[string]any)
-	if err := json.Unmarshal(data, &m); err != nil {
-		return err
-	}
-
-	for key, val := range m {
-		element, ok := val.(string)
-		if ok {
-			(*c)[key] = []string{element}
-			continue
-		}
-
-		list, ok := val.([]any)
-		if !ok {
-			return errors.New("invalid principal format")
-		}
-
-		resList := make([]string, len(list))
-		for i := range list {
-			val, ok := list[i].(string)
-			if !ok {
-				return errors.New("invalid principal format")
-			}
-			resList[i] = val
-		}
-
-		(*c)[key] = resList
-	}
-
-	return nil
-}
-
-func (p Policy) Validate(typ PolicyType) error {
-	if err := p.validate(); err != nil {
-		return err
-	}
-
-	switch typ {
-	case IdentityBasedPolicyType:
-		return p.validateIdentityBased()
-	case ResourceBasedPolicyType:
-		return p.validateResourceBased()
-	default:
-		return nil
-	}
-}
-
-func (p Policy) validate() error {
-	if len(p.Statement) == 0 {
-		return errors.New("'Statement' is missing")
-	}
-
-	for _, statement := range p.Statement {
-		if !statement.Effect.IsValid() {
-			return fmt.Errorf("unknown effect: '%s'", statement.Effect)
-		}
-		if len(statement.Action) != 0 && len(statement.NotAction) != 0 {
-			return errors.New("'Actions' and 'NotAction' are mutually exclusive")
-		}
-		if statement.Resource != nil && statement.NotResource != nil {
-			return errors.New("'Resources' and 'NotResource' are mutually exclusive")
-		}
-		if len(statement.Resource) == 0 && len(statement.NotResource) == 0 {
-			return errors.New("one of 'Resources'/'NotResource' must be provided")
-		}
-		if len(statement.Principal) != 0 && len(statement.NotPrincipal) != 0 {
-			return errors.New("'Principal' and 'NotPrincipal' are mutually exclusive")
-		}
-		if len(statement.NotPrincipal) != 0 && statement.Effect != DenyEffect {
-			return errors.New("using 'NotPrincipal' with effect 'Allow' is not supported")
-		}
-
-		principal, _ := statement.principal()
-		if err := principal.validate(); err != nil {
-			return err
-		}
-	}
-
-	return nil
-}
-
-func (p Policy) validateIdentityBased() error {
-	if len(p.ID) != 0 {
-		return errors.New("'Id' is not allowed for identity-based policy")
-	}
-
-	for _, statement := range p.Statement {
-		if len(statement.Principal) != 0 || len(statement.NotPrincipal) != 0 {
-			return errors.New("'Principal' and 'NotPrincipal' are not allowed for identity-based policy")
-		}
-	}
-
-	return nil
-}
-
-func (p Policy) validateResourceBased() error {
-	for _, statement := range p.Statement {
-		if len(statement.Principal) == 0 && len(statement.NotPrincipal) == 0 {
-			return errors.New("'Principal' or 'NotPrincipal' must be provided for resource-based policy")
-		}
-	}
-
-	return nil
-}
-
-func (s Statement) principal() (Principal, bool) {
-	if len(s.NotPrincipal) != 0 {
-		return s.NotPrincipal, true
-	}
-
-	return s.Principal, false
-}
-
-func (s Statement) action() (Action, bool) {
-	if len(s.NotAction) != 0 {
-		return s.NotAction, true
-	}
-
-	return s.Action, false
-}
-
-func (s Statement) resource() (Resource, bool) {
-	if len(s.NotResource) != 0 {
-		return s.NotResource, true
-	}
-
-	return s.Resource, false
-}
-
-func (p Principal) validate() error {
-	if _, ok := p[Wildcard]; ok && len(p) == 1 {
-		return nil
-	}
-
-	for key := range p {
-		if !key.IsValid() {
-			return fmt.Errorf("unknown principal type: '%s'", key)
-		}
-	}
-
-	return nil
-}

iam/policy_test.go

@@ -1,503 +0,0 @@
-package iam
-
-import (
-	"encoding/json"
-	"fmt"
-	"testing"
-
-	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/chain"
-	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/engine"
-	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/engine/inmemory"
-	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/resource/testutil"
-	"git.frostfs.info/TrueCloudLab/policy-engine/schema/native"
-	"github.com/stretchr/testify/require"
-)
-
-func TestUnmarshalIAMPolicy(t *testing.T) {
-	t.Run("simple fields", func(t *testing.T) {
-		policy := `{
-	"Version": "2012-10-17",
-	"Id": "PutObjPolicy",
-	"Statement": {
-		"Sid": "DenyObjectsThatAreNotSSEKMS",
-		"Principal": "*",
-		"Effect": "Deny",
-		"Action": "s3:PutObject",
-		"Resource": "arn:aws:s3:::DOC-EXAMPLE-BUCKET/*",
-		"Condition": {
-			"Null": {
-				"s3:x-amz-server-side-encryption-aws-kms-key-id": "true"
-			}
-		}
-	}
-}`
-
-		expected := Policy{
-			Version: "2012-10-17",
-			ID:      "PutObjPolicy",
-			Statement: []Statement{{
-				SID: "DenyObjectsThatAreNotSSEKMS",
-				Principal: map[PrincipalType][]string{
-					"*": nil,
-				},
-				Effect:   DenyEffect,
-				Action:   []string{"s3:PutObject"},
-				Resource: []string{"arn:aws:s3:::DOC-EXAMPLE-BUCKET/*"},
-				Conditions: map[string]Condition{
-					"Null": {
-						"s3:x-amz-server-side-encryption-aws-kms-key-id": {"true"},
-					},
-				},
-			}},
-		}
-
-		var p Policy
-		err := json.Unmarshal([]byte(policy), &p)
-		require.NoError(t, err)
-		require.Equal(t, expected, p)
-	})
-
-	t.Run("complex fields", func(t *testing.T) {
-		policy := `{
-	"Version": "2012-10-17",
-	"Statement": [{
-		"Principal":{
-			"AWS":[
-				"arn:aws:iam::111122223333:user/JohnDoe"
-			]
-		},
-		"Effect": "Allow",
-		"Action": [
-			"s3:PutObject"
-		],
-		"Resource": [
-			"arn:aws:s3:::DOC-EXAMPLE-BUCKET/*"
-		],
-		"Condition": {
-			"StringEquals": {
-				"s3:RequestObjectTag/Department": ["Finance"]
-			}
-		}
-	}]
-}`
-
-		expected := Policy{
-			Version: "2012-10-17",
-			Statement: []Statement{{
-				Principal: map[PrincipalType][]string{
-					AWSPrincipalType: {"arn:aws:iam::111122223333:user/JohnDoe"},
-				},
-				Effect:   AllowEffect,
-				Action:   []string{"s3:PutObject"},
-				Resource: []string{"arn:aws:s3:::DOC-EXAMPLE-BUCKET/*"},
-				Conditions: map[string]Condition{
-					"StringEquals": {
-						"s3:RequestObjectTag/Department": {"Finance"},
-					},
-				},
-			}},
-		}
-
-		var p Policy
-		err := json.Unmarshal([]byte(policy), &p)
-		require.NoError(t, err)
-		require.Equal(t, expected, p)
-
-		raw, err := json.Marshal(expected)
-		require.NoError(t, err)
-		require.JSONEq(t, policy, string(raw))
-	})
-
-	t.Run("check principal AWS", func(t *testing.T) {
-		policy := `{
-	"Statement": [{
-		"Principal":{
-			"AWS":"arn:aws:iam::111122223333:user/JohnDoe"
-		}
-	}]
-}`
-
-		expected := Policy{
-			Statement: []Statement{{
-				Principal: map[PrincipalType][]string{
-					AWSPrincipalType: {"arn:aws:iam::111122223333:user/JohnDoe"},
-				},
-			}},
-		}
-
-		var p Policy
-		err := json.Unmarshal([]byte(policy), &p)
-		require.NoError(t, err)
-		require.Equal(t, expected, p)
-	})
-
-	t.Run("native example", func(t *testing.T) {
-		policy := `
-{
-	"Version": "xyz",
-	"Statement": [
-	  {
-		"Effect": "Allow",
-		"Action": [
-		  "native:*",
-		  "s3:PutObject",
-		  "s3:GetObject"
-		],
-		"Resource": ["*"],
-		"Principal": {"FrostFS": ["did:frostfs:039e3ee771a223361fe7862f532e9511b57baaae3c3e2622682e99d0e660f7671"]},
-		"Condition": {"StringEquals": {"native::object::attribute": "iamuser-admin"}}
-	  }
-	]
-}`
-
-		var p Policy
-		err := json.Unmarshal([]byte(policy), &p)
-		require.NoError(t, err)
-	})
-
-	t.Run("condition array", func(t *testing.T) {
-		policy := `
-{
-	"Statement": [{
-		"Condition": {"StringLike": {"ec2:InstanceType": ["t1.*", "t2.*", "m3.*"]}}
-	}]
-}`
-
-		expected := Policy{
-			Statement: []Statement{{
-				Conditions: map[string]Condition{
-					"StringLike": {"ec2:InstanceType": {"t1.*", "t2.*", "m3.*"}},
-				},
-			}},
-		}
-
-		var p Policy
-		err := json.Unmarshal([]byte(policy), &p)
-		require.NoError(t, err)
-		require.Equal(t, expected, p)
-	})
-
-	t.Run("'Not*' fields", func(t *testing.T) {
-		policy := `
-{
-	"Id": "PutObjPolicy",
-	"Statement": [{
-			"NotPrincipal": {"AWS":["arn:aws:iam::111122223333:user/Alice"]},
-			"Effect": "Deny",
-			"NotAction": "s3:PutObject",
-			"NotResource": "arn:aws:s3:::DOC-EXAMPLE-BUCKET/*"
-	}]
-}`
-
-		expected := Policy{
-			ID: "PutObjPolicy",
-			Statement: []Statement{{
-				NotPrincipal: map[PrincipalType][]string{
-					AWSPrincipalType: {"arn:aws:iam::111122223333:user/Alice"},
-				},
-				Effect:      DenyEffect,
-				NotAction:   []string{"s3:PutObject"},
-				NotResource: []string{"arn:aws:s3:::DOC-EXAMPLE-BUCKET/*"},
-			}},
-		}
-
-		var p Policy
-		err := json.Unmarshal([]byte(policy), &p)
-		require.NoError(t, err)
-		require.Equal(t, expected, p)
-	})
-}
-
-func TestValidatePolicies(t *testing.T) {
-	for _, tc := range []struct {
-		name    string
-		policy  Policy
-		typ     PolicyType
-		isValid bool
-	}{
-		{
-			name: "valid permission boundaries",
-			policy: Policy{
-				Statement: []Statement{{
-					Effect:   AllowEffect,
-					Action:   []string{"s3:*", "cloudwatch:*", "ec2:*"},
-					Resource: []string{Wildcard},
-				}},
-			},
-			typ:     GeneralPolicyType,
-			isValid: true,
-		},
-		{
-			name: "general invalid effect",
-			policy: Policy{
-				Statement: []Statement{{
-					Effect:   "dummy",
-					Action:   []string{"s3:*", "cloudwatch:*", "ec2:*"},
-					Resource: []string{Wildcard},
-				}},
-			},
-			typ:     GeneralPolicyType,
-			isValid: false,
-		},
-		{
-			name: "general invalid principal block",
-			policy: Policy{
-				Statement: []Statement{{
-					Effect:       AllowEffect,
-					Action:       []string{"s3:*", "cloudwatch:*", "ec2:*"},
-					Resource:     []string{Wildcard},
-					Principal:    map[PrincipalType][]string{Wildcard: nil},
-					NotPrincipal: map[PrincipalType][]string{Wildcard: nil},
-				}},
-			},
-			typ:     GeneralPolicyType,
-			isValid: false,
-		},
-		{
-			name: "general invalid not principal",
-			policy: Policy{
-				Statement: []Statement{{
-					Effect:       AllowEffect,
-					Action:       []string{"s3:*", "cloudwatch:*", "ec2:*"},
-					Resource:     []string{Wildcard},
-					NotPrincipal: map[PrincipalType][]string{AWSPrincipalType: {"arn:aws:iam::111122223333:user/Alice"}},
-				}},
-			},
-			typ:     GeneralPolicyType,
-			isValid: false,
-		},
-		{
-			name: "general invalid principal type",
-			policy: Policy{
-				Statement: []Statement{{
-					Effect:       AllowEffect,
-					Action:       []string{"s3:*", "cloudwatch:*", "ec2:*"},
-					Resource:     []string{Wildcard},
-					NotPrincipal: map[PrincipalType][]string{"dummy": {"arn:aws:iam::111122223333:user/Alice"}},
-				}},
-			},
-			typ:     GeneralPolicyType,
-			isValid: false,
-		},
-		{
-			name: "general invalid action block",
-			policy: Policy{
-				Statement: []Statement{{
-					Effect:    AllowEffect,
-					Action:    []string{"s3:*", "cloudwatch:*", "ec2:*"},
-					NotAction: []string{"iam:*"},
-					Resource:  []string{Wildcard},
-				}},
-			},
-			typ:     GeneralPolicyType,
-			isValid: false,
-		},
-		{
-			name: "general invalid resource block",
-			policy: Policy{
-				Statement: []Statement{{
-					Effect:      AllowEffect,
-					Resource:    []string{Wildcard},
-					NotResource: []string{"arn:aws:s3:::DOC-EXAMPLE-BUCKET/*"},
-				}},
-			},
-			typ:     GeneralPolicyType,
-			isValid: false,
-		},
-		{
-			name: "invalid resource block",
-			policy: Policy{
-				Statement: []Statement{{
-					Effect:      AllowEffect,
-					Resource:    []string{},
-					NotResource: []string{"arn:aws:s3:::DOC-EXAMPLE-BUCKET/*"},
-				}},
-			},
-			typ:     GeneralPolicyType,
-			isValid: false,
-		},
-		{
-			name: "missing resource block",
-			policy: Policy{
-				Statement: []Statement{{
-					Effect: AllowEffect,
-				}},
-			},
-			typ:     GeneralPolicyType,
-			isValid: false,
-		},
-		{
-			name:    "missing statement block",
-			policy:  Policy{},
-			typ:     GeneralPolicyType,
-			isValid: false,
-		},
-		{
-			name: "identity based valid",
-			policy: Policy{
-				Statement: []Statement{{
-					Effect:   AllowEffect,
-					Action:   []string{"s3:PutObject"},
-					Resource: []string{Wildcard},
-				}},
-			},
-			typ:     IdentityBasedPolicyType,
-			isValid: true,
-		},
-		{
-			name: "identity based invalid because of id presence",
-			policy: Policy{
-				ID: "some-id",
-				Statement: []Statement{{
-					Effect:   AllowEffect,
-					Action:   []string{"s3:PutObject"},
-					Resource: []string{Wildcard},
-				}},
-			},
-			typ:     IdentityBasedPolicyType,
-			isValid: false,
-		},
-		{
-			name: "identity based invalid because of principal presence",
-			policy: Policy{
-				Statement: []Statement{{
-					Effect:    AllowEffect,
-					Action:    []string{"s3:PutObject"},
-					Resource:  []string{Wildcard},
-					Principal: map[PrincipalType][]string{AWSPrincipalType: {"arn:aws:iam::111122223333:user/Alice"}},
-				}},
-			},
-			typ:     IdentityBasedPolicyType,
-			isValid: false,
-		},
-		{
-			name: "identity based invalid because of not principal presence",
-			policy: Policy{
-				Statement: []Statement{{
-					Effect:       AllowEffect,
-					Action:       []string{"s3:PutObject"},
-					Resource:     []string{Wildcard},
-					NotPrincipal: map[PrincipalType][]string{AWSPrincipalType: {"arn:aws:iam::111122223333:user/Alice"}},
-				}},
-			},
-			typ:     IdentityBasedPolicyType,
-			isValid: false,
-		},
-		{
-			name: "resource based valid principal",
-			policy: Policy{
-				Statement: []Statement{{
-					Effect:    DenyEffect,
-					Action:    []string{"s3:PutObject"},
-					Resource:  []string{Wildcard},
-					Principal: map[PrincipalType][]string{AWSPrincipalType: {"arn:aws:iam::111122223333:user/Alice"}},
-				}},
-			},
-			typ:     ResourceBasedPolicyType,
-			isValid: true,
-		},
-		{
-			name: "resource based valid not principal",
-			policy: Policy{
-				ID: "some-id",
-				Statement: []Statement{{
-					Effect:       DenyEffect,
-					Action:       []string{"s3:PutObject"},
-					Resource:     []string{Wildcard},
-					NotPrincipal: map[PrincipalType][]string{AWSPrincipalType: {"arn:aws:iam::111122223333:user/Alice"}},
-				}},
-			},
-			typ:     ResourceBasedPolicyType,
-			isValid: true,
-		},
-		{
-			name: "resource based invalid missing principal",
-			policy: Policy{
-				ID: "some-id",
-				Statement: []Statement{{
-					Effect:   AllowEffect,
-					Action:   []string{"s3:PutObject"},
-					Resource: []string{Wildcard},
-				}},
-			},
-			typ:     ResourceBasedPolicyType,
-			isValid: false,
-		},
-	} {
-		t.Run(tc.name, func(t *testing.T) {
-			err := tc.policy.Validate(tc.typ)
-			if tc.isValid {
-				require.NoError(t, err)
-			} else {
-				require.Error(t, err)
-			}
-		})
-	}
-}
-
-func TestProcessDenyFirst(t *testing.T) {
-	identityBasedPolicyStr := `
-{
-    "Version": "2012-10-17",
-    "Statement": [
-        {
-            "Effect": "Allow",
-			"Principal": {
-				"AWS": [ "arn:aws:iam::root:user/user-name" ]
-			},
-            "Action": ["s3:PutObject" ],
-            "Resource": "arn:aws:s3:::*"
-        }
-    ]
-}
-`
-
-	resourceBasedPolicyStr := `
-{
-    "Version": "2012-10-17",
-    "Statement": [
-        {
-            "Effect": "Deny",
-            "Principal": "*",
-            "Action": "s3:*",
-            "Resource": [ "arn:aws:s3:::test-bucket/*" ]
-        }
-    ]
-}
-`
-
-	var identityPolicy Policy
-	err := json.Unmarshal([]byte(identityBasedPolicyStr), &identityPolicy)
-	require.NoError(t, err)
-
-	var resourcePolicy Policy
-	err = json.Unmarshal([]byte(resourceBasedPolicyStr), &resourcePolicy)
-	require.NoError(t, err)
-
-	mockResolver := newMockUserResolver([]string{"root/user-name"}, []string{"test-bucket"}, "")
-
-	identityNativePolicy, err := ConvertToNativeChain(identityPolicy, mockResolver)
-	require.NoError(t, err)
-	identityNativePolicy.MatchType = chain.MatchTypeFirstMatch
-
-	resourceNativePolicy, err := ConvertToNativeChain(resourcePolicy, mockResolver)
-	require.NoError(t, err)
-
-	s := inmemory.NewInMemory()
-
-	target := engine.NamespaceTarget("ns")
-
-	_, _, err = s.MorphRuleChainStorage().AddMorphRuleChain(chain.Ingress, target, identityNativePolicy)
-	require.NoError(t, err)
-
-	_, _, err = s.MorphRuleChainStorage().AddMorphRuleChain(chain.Ingress, target, resourceNativePolicy)
-	require.NoError(t, err)
-
-	resource := testutil.NewResource(fmt.Sprintf(native.ResourceFormatRootContainerObjects, mockResolver.containers["test-bucket"]), nil)
-	request := testutil.NewRequest("PutObject", resource, map[string]string{native.PropertyKeyActorPublicKey: mockResolver.users["root/user-name"]})
-
-	status, found, err := s.IsAllowed(chain.Ingress, engine.NewRequestTarget("ns", ""), request)
-	require.NoError(t, err)
-	require.True(t, found)
-	require.Equal(t, chain.AccessDenied, status)
-}

inmemory.go

@@ -0,0 +1,76 @@
+package policyengine
+
+type inmemory struct {
+	namespace map[Name][]chain
+	resource  map[Name][]chain
+	local     map[Name][]*Chain
+}
+
+type chain struct {
+	object string
+	chain  *Chain
+}
+
+// NewInMemory returns new inmemory instance of chain storage.
+func NewInMemory() CachedChainStorage {
+	return &inmemory{
+		namespace: make(map[Name][]chain),
+		resource:  make(map[Name][]chain),
+		local:     make(map[Name][]*Chain),
+	}
+}
+
+// TODO параметры для actor (IP)
+// TODO
+func (s *inmemory) IsAllowed(name Name, namespace string, r Request) (Status, bool) {
+	var ruleFound bool
+	if local, ok := s.local[name]; ok {
+		for _, c := range local {
+			if status, matched := c.Match(r); matched && status != Allow {
+				return status, true
+			}
+		}
+	}
+	if cs, ok := s.namespace[name]; ok {
+		status, ok := matchArray(cs, namespace, r)
+		if ok && status != Allow {
+			return status, true
+		}
+		ruleFound = ruleFound || ok
+	}
+	if cs, ok := s.resource[name]; ok {
+		status, ok := matchArray(cs, r.Resource().Name(), r)
+		if ok {
+			return status, true
+		}
+		ruleFound = ruleFound || ok
+	}
+	if ruleFound {
+		return Allow, true
+	}
+	return NoRuleFound, false
+}
+
+func matchArray(cs []chain, object string, r Request) (Status, bool) {
+	for _, c := range cs {
+		if !globMatch(object, c.object) {
+			continue
+		}
+		if status, matched := c.chain.Match(r); matched {
+			return status, true
+		}
+	}
+	return NoRuleFound, false
+}
+
+func (s *inmemory) AddResourceChain(name Name, resource string, c *Chain) {
+	s.resource[name] = append(s.resource[name], chain{resource, c})
+}
+
+func (s *inmemory) AddNameSpaceChain(name Name, namespace string, c *Chain) {
+	s.namespace[name] = append(s.namespace[name], chain{namespace, c})
+}
+
+func (s *inmemory) AddOverride(name Name, c *Chain) {
+	s.local[name] = append(s.local[name], c)
+}

inmemory_test.go

@@ -0,0 +1,166 @@
+package policyengine
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestInmemory(t *testing.T) {
+	const (
+		object    = "native::object::abc/xyz"
+		container = "native::object::abc/*"
+		namespace = "Tenant1"
+		actor1    = "owner1"
+		actor2    = "owner2"
+	)
+
+	s := NewInMemory()
+
+	// Object which was put via S3.
+	res := newResource(object, map[string]string{"FromS3": "true"})
+	// Request initiating from the trusted subnet and actor.
+	reqGood := newRequest("native::object::put", res, map[string]string{
+		"SourceIP": "10.1.1.12",
+		"Actor":    actor1,
+	})
+
+	status, ok := s.IsAllowed(Ingress, namespace, reqGood)
+	require.Equal(t, NoRuleFound, status)
+	require.False(t, ok)
+
+	s.AddNameSpaceChain(Ingress, namespace, &Chain{
+		Rules: []Rule{
+			{ // Restrict to remove ANY object from the namespace.
+				Status:   AccessDenied,
+				Action:   []string{"native::object::delete"},
+				Resource: []string{"native::object::*"},
+			},
+			{ // Allow to put object only from the trusted subnet AND trusted actor, deny otherwise.
+				Status:   AccessDenied,
+				Action:   []string{"native::object::put"},
+				Resource: []string{"native::object::*"},
+				Any:      true,
+				Condition: []Condition{
+					{
+						Op:     CondStringNotLike,
+						Object: ObjectRequest,
+						Key:    "SourceIP",
+						Value:  "10.1.1.*",
+					},
+					{
+						Op:     CondStringNotEquals,
+						Object: ObjectRequest,
+						Key:    "Actor",
+						Value:  actor1,
+					},
+				},
+			},
+		},
+	})
+
+	s.AddResourceChain(Ingress, container, &Chain{
+		Rules: []Rule{
+			{ // Allow to actor2 to get objects from the specific container only if they have `Department=HR` attribute.
+				Status:   Allow,
+				Action:   []string{"native::object::get"},
+				Resource: []string{"native::object::abc/*"},
+				Condition: []Condition{
+					{
+						Op:     CondStringEquals,
+						Object: ObjectResource,
+						Key:    "Department",
+						Value:  "HR",
+					},
+					{
+						Op:     CondStringEquals,
+						Object: ObjectRequest,
+						Key:    "Actor",
+						Value:  actor2,
+					},
+				},
+			},
+		},
+	})
+
+	t.Run("bad subnet, namespace deny", func(t *testing.T) {
+		// Request initiating from the untrusted subnet.
+		reqBadIP := newRequest("native::object::put", res, map[string]string{
+			"SourceIP": "10.122.1.20",
+			"Actor":    actor1,
+		})
+		status, ok := s.IsAllowed(Ingress, namespace, reqBadIP)
+		require.Equal(t, AccessDenied, status)
+		require.True(t, ok)
+	})
+	t.Run("bad actor, namespace deny", func(t *testing.T) {
+		// Request initiating from the untrusted actor.
+		reqBadActor := newRequest("native::object::put", res, map[string]string{
+			"SourceIP": "10.1.1.13",
+			"Actor":    actor2,
+		})
+		status, ok := s.IsAllowed(Ingress, namespace, reqBadActor)
+		require.Equal(t, AccessDenied, status)
+		require.True(t, ok)
+	})
+	t.Run("bad object, container deny", func(t *testing.T) {
+		objGood := newResource("native::object::abc/id1", map[string]string{"Department": "HR"})
+		objBadAttr := newResource("native::object::abc/id2", map[string]string{"Department": "Support"})
+
+		status, ok := s.IsAllowed(Ingress, namespace, newRequest("native::object::get", objGood, map[string]string{
+			"SourceIP": "10.1.1.14",
+			"Actor":    actor2,
+		}))
+		require.Equal(t, Allow, status)
+		require.True(t, ok)
+
+		status, ok = s.IsAllowed(Ingress, namespace, newRequest("native::object::get", objBadAttr, map[string]string{
+			"SourceIP": "10.1.1.14",
+			"Actor":    actor2,
+		}))
+		require.Equal(t, NoRuleFound, status)
+		require.False(t, ok)
+	})
+	t.Run("bad operation, namespace deny", func(t *testing.T) {
+		// Request with the forbidden operation.
+		reqBadOperation := newRequest("native::object::delete", res, map[string]string{
+			"SourceIP": "10.1.1.12",
+			"Actor":    actor1,
+		})
+		status, ok := s.IsAllowed(Ingress, namespace, reqBadOperation)
+		require.Equal(t, AccessDenied, status)
+		require.True(t, ok)
+	})
+	t.Run("good", func(t *testing.T) {
+		status, ok = s.IsAllowed(Ingress, namespace, reqGood)
+		require.Equal(t, NoRuleFound, status)
+		require.False(t, ok)
+
+		t.Run("quota on a different container", func(t *testing.T) {
+			s.AddOverride(Ingress, &Chain{
+				Rules: []Rule{{
+					Status:   QuotaLimitReached,
+					Action:   []string{"native::object::put"},
+					Resource: []string{"native::object::cba/*"},
+				}},
+			})
+
+			status, ok = s.IsAllowed(Ingress, namespace, reqGood)
+			require.Equal(t, NoRuleFound, status)
+			require.False(t, ok)
+		})
+		t.Run("quota on the request container", func(t *testing.T) {
+			s.AddOverride(Ingress, &Chain{
+				Rules: []Rule{{
+					Status:   QuotaLimitReached,
+					Action:   []string{"native::object::put"},
+					Resource: []string{"native::object::abc/*"},
+				}},
+			})
+
+			status, ok = s.IsAllowed(Ingress, namespace, reqGood)
+			require.Equal(t, QuotaLimitReached, status)
+			require.True(t, ok)
+		})
+	})
+}

interface.go

@@ -0,0 +1,12 @@
+package policyengine
+
+// CachedChainStorage ...
+type CachedChainStorage interface {
+	Engine
+	// Adds a policy chain used for all operations with a specific resource.
+	AddResourceChain(name Name, resource string, c *Chain)
+	// Adds a policy chain used for all operations in the namespace.
+	AddNameSpaceChain(name Name, namespace string, c *Chain)
+	// Adds a local policy chain used for all operations with this service.
+	AddOverride(name Name, c *Chain)
+}

pkg/chain/chain.go

@@ -1,273 +0,0 @@
-package chain
-
-import (
-	"fmt"
-	"strings"
-
-	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/resource"
-	"git.frostfs.info/TrueCloudLab/policy-engine/util"
-	"golang.org/x/exp/slices"
-)
-
-// ID is the ID of rule chain.
-type ID []byte
-
-// MatchType is the match type for chain rules.
-type MatchType uint8
-
-const (
-	// MatchTypeDenyPriority rejects the request if any `Deny` is specified.
-	MatchTypeDenyPriority MatchType = 0
-	// MatchTypeFirstMatch returns the first rule action matched to the request.
-	MatchTypeFirstMatch MatchType = 1
-)
-
-//easyjson:json
-type Chain struct {
-	ID ID
-
-	Rules []Rule
-
-	MatchType MatchType
-}
-
-func (c *Chain) Bytes() []byte {
-	data, err := c.MarshalBinary()
-	if err != nil {
-		panic(err)
-	}
-	return data
-}
-
-func (c *Chain) DecodeBytes(b []byte) error {
-	return c.UnmarshalBinary(b)
-}
-
-type Rule struct {
-	Status Status
-	// Actions the operation is applied to.
-	Actions Actions
-	// List of the resources the operation is applied to.
-	Resources Resources
-	// True iff individual conditions must be combined with the logical OR.
-	// By default AND is used, so _each_ condition must pass.
-	Any       bool
-	Condition []Condition
-}
-
-type Actions struct {
-	Inverted bool
-	Names    []string
-}
-
-type Resources struct {
-	Inverted bool
-	Names    []string
-}
-
-type Condition struct {
-	Op     ConditionType
-	Object ObjectType
-	Key    string
-	Value  string
-}
-
-type ObjectType byte
-
-const (
-	ObjectResource ObjectType = iota
-	ObjectRequest
-	ContainerResource
-	ContainerRequest
-)
-
-type ConditionType byte
-
-// TODO @fyrchik: reduce the number of conditions.
-// Everything from here should be expressable, but we do not need them all.
-// https://docs.aws.amazon.com/IAM/latest/UserGuide/reference_policies_elements_condition_operators.html
-const (
-	// String condition operators.
-	CondStringEquals ConditionType = iota
-	CondStringNotEquals
-	CondStringEqualsIgnoreCase
-	CondStringNotEqualsIgnoreCase
-	CondStringLike
-	CondStringNotLike
-	CondStringLessThan
-	CondStringLessThanEquals
-	CondStringGreaterThan
-	CondStringGreaterThanEquals
-
-	// Numeric condition operators.
-	CondNumericEquals
-	CondNumericNotEquals
-	CondNumericLessThan
-	CondNumericLessThanEquals
-	CondNumericGreaterThan
-	CondNumericGreaterThanEquals
-
-	CondSliceContains
-)
-
-var condToStr = []struct {
-	ct  ConditionType
-	str string
-}{
-	{CondStringEquals, "StringEquals"},
-	{CondStringNotEquals, "StringNotEquals"},
-	{CondStringEqualsIgnoreCase, "StringEqualsIgnoreCase"},
-	{CondStringNotEqualsIgnoreCase, "StringNotEqualsIgnoreCase"},
-	{CondStringLike, "StringLike"},
-	{CondStringNotLike, "StringNotLike"},
-	{CondStringLessThan, "StringLessThan"},
-	{CondStringLessThanEquals, "StringLessThanEquals"},
-	{CondStringGreaterThan, "StringGreaterThan"},
-	{CondStringGreaterThanEquals, "StringGreaterThanEquals"},
-	{CondNumericEquals, "NumericEquals"},
-	{CondNumericNotEquals, "NumericNotEquals"},
-	{CondNumericLessThan, "NumericLessThan"},
-	{CondNumericLessThanEquals, "NumericLessThanEquals"},
-	{CondNumericGreaterThan, "NumericGreaterThan"},
-	{CondNumericGreaterThanEquals, "NumericGreaterThanEquals"},
-	{CondSliceContains, "SliceContains"},
-}
-
-func (c ConditionType) String() string {
-	for _, v := range condToStr {
-		if v.ct == c {
-			return v.str
-		}
-	}
-	return "unknown condition type"
-}
-
-const condSliceContainsDelimiter = "\x00"
-
-// FormCondSliceContainsValue builds value for ObjectResource or ObjectRequest property
-// that can be matched by CondSliceContains condition.
-func FormCondSliceContainsValue(values []string) string {
-	return strings.Join(values, condSliceContainsDelimiter)
-}
-
-func (c *Condition) Match(req resource.Request) bool {
-	var val string
-	switch c.Object {
-	case ObjectResource:
-		val = req.Resource().Property(c.Key)
-	case ObjectRequest:
-		val = req.Property(c.Key)
-	default:
-		panic(fmt.Sprintf("unknown condition type: %d", c.Object))
-	}
-
-	switch c.Op {
-	default:
-		panic(fmt.Sprintf("unimplemented: %d", c.Op))
-	case CondStringEquals:
-		return val == c.Value
-	case CondStringNotEquals:
-		return val != c.Value
-	case CondStringEqualsIgnoreCase:
-		return strings.EqualFold(val, c.Value)
-	case CondStringNotEqualsIgnoreCase:
-		return !strings.EqualFold(val, c.Value)
-	case CondStringLike:
-		return util.GlobMatch(val, c.Value)
-	case CondStringNotLike:
-		return !util.GlobMatch(val, c.Value)
-	case CondStringLessThan:
-		return val < c.Value
-	case CondStringLessThanEquals:
-		return val <= c.Value
-	case CondStringGreaterThan:
-		return val > c.Value
-	case CondStringGreaterThanEquals:
-		return val >= c.Value
-	case CondSliceContains:
-		return slices.Contains(strings.Split(val, condSliceContainsDelimiter), c.Value)
-	}
-}
-
-func (r *Rule) Match(req resource.Request) (status Status, matched bool) {
-	found := len(r.Resources.Names) == 0
-	for i := range r.Resources.Names {
-		if util.GlobMatch(req.Resource().Name(), r.Resources.Names[i]) != r.Resources.Inverted {
-			found = true
-			break
-		}
-	}
-	if !found {
-		return NoRuleFound, false
-	}
-	for i := range r.Actions.Names {
-		if util.GlobMatch(req.Operation(), r.Actions.Names[i]) != r.Actions.Inverted {
-			return r.matchCondition(req)
-		}
-	}
-	return NoRuleFound, false
-}
-
-func (r *Rule) matchCondition(obj resource.Request) (status Status, matched bool) {
-	if r.Any {
-		return r.matchAny(obj)
-	}
-	return r.matchAll(obj)
-}
-
-func (r *Rule) matchAny(obj resource.Request) (status Status, matched bool) {
-	for i := range r.Condition {
-		if r.Condition[i].Match(obj) {
-			return r.Status, true
-		}
-	}
-	return NoRuleFound, false
-}
-
-func (r *Rule) matchAll(obj resource.Request) (status Status, matched bool) {
-	for i := range r.Condition {
-		if !r.Condition[i].Match(obj) {
-			return NoRuleFound, false
-		}
-	}
-	return r.Status, true
-}
-
-func (c *Chain) Match(req resource.Request) (status Status, matched bool) {
-	switch c.MatchType {
-	case MatchTypeDenyPriority:
-		return c.denyPriority(req)
-	case MatchTypeFirstMatch:
-		return c.firstMatch(req)
-	default:
-		panic(fmt.Sprintf("unknown MatchType %d", c.MatchType))
-	}
-}
-
-func (c *Chain) firstMatch(req resource.Request) (status Status, matched bool) {
-	for i := range c.Rules {
-		status, matched := c.Rules[i].Match(req)
-		if matched {
-			return status, true
-		}
-	}
-	return NoRuleFound, false
-}
-
-func (c *Chain) denyPriority(req resource.Request) (status Status, matched bool) {
-	var allowFound bool
-	for i := range c.Rules {
-		status, matched := c.Rules[i].Match(req)
-		if !matched {
-			continue
-		}
-		if status != Allow {
-			return status, true
-		}
-		allowFound = true
-	}
-	if allowFound {
-		return Allow, true
-	}
-	return NoRuleFound, false
-}

pkg/chain/chain_test.go

@@ -1,151 +0,0 @@
-package chain
-
-import (
-	"testing"
-
-	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/resource/testutil"
-	"git.frostfs.info/TrueCloudLab/policy-engine/schema/common"
-	"git.frostfs.info/TrueCloudLab/policy-engine/schema/native"
-	"github.com/stretchr/testify/require"
-)
-
-func TestChainIDSerialization(t *testing.T) {
-	chainIDBytes := []byte{93, 236, 80, 138, 168, 3, 144, 92, 173, 141, 16, 42, 249, 90, 97, 109, 211, 169, 54, 163}
-
-	chain1 := &Chain{ID: ID(chainIDBytes)}
-	data := chain1.Bytes()
-
-	var chain2 Chain
-	err := chain2.DecodeBytes(data)
-	require.NoError(t, err)
-
-	require.Equal(t, chain1.ID, chain2.ID)
-}
-
-func TestEncodeDecode(t *testing.T) {
-	expected := Chain{
-		MatchType: MatchTypeFirstMatch,
-		Rules: []Rule{
-			{
-				Status: Allow,
-				Actions: Actions{Names: []string{
-					"native::PutObject",
-				}},
-				Resources: Resources{Names: []string{"*"}},
-				Condition: []Condition{
-					{
-						Op:    CondStringEquals,
-						Key:   "Name",
-						Value: "NNS",
-					},
-				},
-			},
-		},
-	}
-	data := expected.Bytes()
-
-	var actual Chain
-	require.NoError(t, actual.DecodeBytes(data))
-	require.Equal(t, expected, actual)
-}
-
-func TestReturnFirstMatch(t *testing.T) {
-	ch := Chain{
-		Rules: []Rule{
-			{
-				Status: Allow,
-				Actions: Actions{Names: []string{
-					native.MethodPutObject,
-				}},
-				Resources: Resources{Names: []string{native.ResourceFormatRootContainers}},
-				Condition: []Condition{},
-			},
-			{
-				Status: AccessDenied,
-				Actions: Actions{Names: []string{
-					native.MethodPutObject,
-				}},
-				Resources: Resources{Names: []string{native.ResourceFormatRootContainers}},
-				Condition: []Condition{},
-			},
-		},
-	}
-
-	resource := testutil.NewResource(native.ResourceFormatRootContainers, nil)
-	request := testutil.NewRequest(native.MethodPutObject, resource, nil)
-
-	t.Run("default match", func(t *testing.T) {
-		st, found := ch.Match(request)
-		require.True(t, found)
-		require.Equal(t, AccessDenied, st)
-	})
-
-	t.Run("return first match", func(t *testing.T) {
-		ch.MatchType = MatchTypeFirstMatch
-		st, found := ch.Match(request)
-		require.True(t, found)
-		require.Equal(t, Allow, st)
-	})
-}
-
-func TestCondSliceContainsMatch(t *testing.T) {
-	propKey := common.PropertyKeyFrostFSIDGroupID
-	groupID := "1"
-
-	ch := Chain{Rules: []Rule{{
-		Status:    Allow,
-		Actions:   Actions{Names: []string{native.MethodPutObject}},
-		Resources: Resources{Names: []string{native.ResourceFormatRootContainers}},
-		Condition: []Condition{{
-			Op:     CondSliceContains,
-			Object: ObjectRequest,
-			Key:    propKey,
-			Value:  groupID,
-		}},
-	}}}
-
-	for _, tc := range []struct {
-		name   string
-		value  string
-		status Status
-	}{
-		{
-			name:   "simple value",
-			value:  groupID,
-			status: Allow,
-		},
-		{
-			name:   "simple value by func",
-			value:  FormCondSliceContainsValue([]string{groupID}),
-			status: Allow,
-		},
-		{
-			name:   "multiple values by func",
-			value:  FormCondSliceContainsValue([]string{groupID, "2", "3"}),
-			status: Allow,
-		},
-		{
-			name:   "simple mismatched",
-			value:  "3",
-			status: NoRuleFound,
-		},
-		{
-			name:   "multiple mismatched",
-			value:  FormCondSliceContainsValue([]string{"11", "12"}),
-			status: NoRuleFound,
-		},
-		{
-			name:   "comma correct handling mismatched",
-			value:  "1,11",
-			status: NoRuleFound,
-		},
-	} {
-		t.Run(tc.name, func(t *testing.T) {
-			resource := testutil.NewResource(native.ResourceFormatRootContainers, nil)
-			request := testutil.NewRequest(native.MethodPutObject, resource, map[string]string{propKey: tc.value})
-
-			st, _ := ch.Match(request)
-			require.Equal(t, tc.status.String(), st.String())
-		})
-	}
-}

pkg/chain/marshal_binary.go

@@ -1,257 +0,0 @@
-package chain
-
-import (
-	"encoding"
-	"fmt"
-
-	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/marshal"
-)
-
-const (
-	ChainMarshalVersion uint8 = 0 // increase if breaking change
-)
-
-var (
-	_ encoding.BinaryMarshaler   = (*Chain)(nil)
-	_ encoding.BinaryUnmarshaler = (*Chain)(nil)
-)
-
-func (c *Chain) MarshalBinary() ([]byte, error) {
-	s := marshal.UInt8Size // Marshaller version
-	s += marshal.UInt8Size // Chain version
-	s += marshal.SliceSize(c.ID, func(byte) int { return marshal.ByteSize })
-	s += marshal.SliceSize(c.Rules, ruleSize)
-	s += marshal.UInt8Size // MatchType
-
-	buf := make([]byte, s)
-	var offset int
-	var err error
-	offset, err = marshal.UInt8Marshal(buf, offset, marshal.Version)
-	if err != nil {
-		return nil, err
-	}
-	offset, err = marshal.UInt8Marshal(buf, offset, ChainMarshalVersion)
-	if err != nil {
-		return nil, err
-	}
-	offset, err = marshal.SliceMarshal(buf, offset, c.ID, marshal.ByteMarshal)
-	if err != nil {
-		return nil, err
-	}
-	offset, err = marshal.SliceMarshal(buf, offset, c.Rules, marshalRule)
-	if err != nil {
-		return nil, err
-	}
-	offset, err = marshal.UInt8Marshal(buf, offset, uint8(c.MatchType))
-	if err != nil {
-		return nil, err
-	}
-
-	if err := marshal.VerifyMarshal(buf, offset); err != nil {
-		return nil, err
-	}
-	return buf, nil
-}
-
-func (c *Chain) UnmarshalBinary(data []byte) error {
-	var offset int
-
-	marshallerVersion, offset, err := marshal.UInt8Unmarshal(data, offset)
-	if err != nil {
-		return err
-	}
-	if marshallerVersion != marshal.Version {
-		return fmt.Errorf("unsupported marshaller version %d", marshallerVersion)
-	}
-
-	chainVersion, offset, err := marshal.UInt8Unmarshal(data, offset)
-	if err != nil {
-		return err
-	}
-	if chainVersion != ChainMarshalVersion {
-		return fmt.Errorf("unsupported chain version %d", chainVersion)
-	}
-
-	idBytes, offset, err := marshal.SliceUnmarshal(data, offset, marshal.ByteUnmarshal)
-	if err != nil {
-		return err
-	}
-	c.ID = ID(idBytes)
-
-	c.Rules, offset, err = marshal.SliceUnmarshal(data, offset, unmarshalRule)
-	if err != nil {
-		return err
-	}
-
-	matchTypeV, offset, err := marshal.UInt8Unmarshal(data, offset)
-	if err != nil {
-		return err
-	}
-	c.MatchType = MatchType(matchTypeV)
-
-	return marshal.VerifyUnmarshal(data, offset)
-}
-
-func ruleSize(r Rule) int {
-	s := marshal.ByteSize // Status
-	s += actionsSize(r.Actions)
-	s += resourcesSize(r.Resources)
-	s += marshal.BoolSize // Any
-	s += marshal.SliceSize(r.Condition, conditionSize)
-	return s
-}
-
-func marshalRule(buf []byte, offset int, r Rule) (int, error) {
-	offset, err := marshal.ByteMarshal(buf, offset, byte(r.Status))
-	if err != nil {
-		return 0, err
-	}
-	offset, err = marshalActions(buf, offset, r.Actions)
-	if err != nil {
-		return 0, err
-	}
-	offset, err = marshalResources(buf, offset, r.Resources)
-	if err != nil {
-		return 0, err
-	}
-	offset, err = marshal.BoolMarshal(buf, offset, r.Any)
-	if err != nil {
-		return 0, err
-	}
-	return marshal.SliceMarshal(buf, offset, r.Condition, marshalCondition)
-}
-
-func unmarshalRule(buf []byte, offset int) (Rule, int, error) {
-	var r Rule
-	statusV, offset, err := marshal.ByteUnmarshal(buf, offset)
-	if err != nil {
-		return Rule{}, 0, err
-	}
-	r.Status = Status(statusV)
-
-	r.Actions, offset, err = unmarshalActions(buf, offset)
-	if err != nil {
-		return Rule{}, 0, err
-	}
-
-	r.Resources, offset, err = unmarshalResources(buf, offset)
-	if err != nil {
-		return Rule{}, 0, err
-	}
-
-	r.Any, offset, err = marshal.BoolUnmarshal(buf, offset)
-	if err != nil {
-		return Rule{}, 0, err
-	}
-
-	r.Condition, offset, err = marshal.SliceUnmarshal(buf, offset, unmarshalCondition)
-	if err != nil {
-		return Rule{}, 0, err
-	}
-
-	return r, offset, nil
-}
-
-func actionsSize(a Actions) int {
-	return marshal.BoolSize + // Inverted
-		marshal.SliceSize(a.Names, marshal.StringSize)
-}
-
-func marshalActions(buf []byte, offset int, a Actions) (int, error) {
-	offset, err := marshal.BoolMarshal(buf, offset, a.Inverted)
-	if err != nil {
-		return 0, err
-	}
-	return marshal.SliceMarshal(buf, offset, a.Names, marshal.StringMarshal)
-}
-
-func unmarshalActions(buf []byte, offset int) (Actions, int, error) {
-	var a Actions
-	var err error
-	a.Inverted, offset, err = marshal.BoolUnmarshal(buf, offset)
-	if err != nil {
-		return Actions{}, 0, err
-	}
-	a.Names, offset, err = marshal.SliceUnmarshal(buf, offset, marshal.StringUnmarshal)
-	if err != nil {
-		return Actions{}, 0, err
-	}
-	return a, offset, nil
-}
-
-func resourcesSize(r Resources) int {
-	return marshal.BoolSize + // Inverted
-		marshal.SliceSize(r.Names, marshal.StringSize)
-}
-
-func marshalResources(buf []byte, offset int, r Resources) (int, error) {
-	offset, err := marshal.BoolMarshal(buf, offset, r.Inverted)
-	if err != nil {
-		return 0, err
-	}
-	return marshal.SliceMarshal(buf, offset, r.Names, marshal.StringMarshal)
-}
-
-func unmarshalResources(buf []byte, offset int) (Resources, int, error) {
-	var r Resources
-	var err error
-	r.Inverted, offset, err = marshal.BoolUnmarshal(buf, offset)
-	if err != nil {
-		return Resources{}, 0, err
-	}
-	r.Names, offset, err = marshal.SliceUnmarshal(buf, offset, marshal.StringUnmarshal)
-	if err != nil {
-		return Resources{}, 0, err
-	}
-	return r, offset, nil
-}
-
-func conditionSize(c Condition) int {
-	return marshal.ByteSize + // Op
-		marshal.ByteSize + // Object
-		marshal.StringSize(c.Key) +
-		marshal.StringSize(c.Value)
-}
-
-func marshalCondition(buf []byte, offset int, c Condition) (int, error) {
-	offset, err := marshal.ByteMarshal(buf, offset, byte(c.Op))
-	if err != nil {
-		return 0, err
-	}
-	offset, err = marshal.ByteMarshal(buf, offset, byte(c.Object))
-	if err != nil {
-		return 0, err
-	}
-	offset, err = marshal.StringMarshal(buf, offset, c.Key)
-	if err != nil {
-		return 0, err
-	}
-	return marshal.StringMarshal(buf, offset, c.Value)
-}
-
-func unmarshalCondition(buf []byte, offset int) (Condition, int, error) {
-	var c Condition
-	opV, offset, err := marshal.ByteUnmarshal(buf, offset)
-	if err != nil {
-		return Condition{}, 0, err
-	}
-	c.Op = ConditionType(opV)
-
-	obV, offset, err := marshal.ByteUnmarshal(buf, offset)
-	if err != nil {
-		return Condition{}, 0, err
-	}
-	c.Object = ObjectType(obV)
-
-	c.Key, offset, err = marshal.StringUnmarshal(buf, offset)
-	if err != nil {
-		return Condition{}, 0, err
-	}
-
-	c.Value, offset, err = marshal.StringUnmarshal(buf, offset)
-	if err != nil {
-		return Condition{}, 0, err
-	}
-
-	return c, offset, nil
-}

pkg/chain/marshal_binary_test.go

@@ -1,272 +0,0 @@
-package chain
-
-import (
-	"fmt"
-	"testing"
-
-	"git.frostfs.info/TrueCloudLab/policy-engine/schema/native"
-	"github.com/google/uuid"
-	"github.com/stretchr/testify/require"
-)
-
-func TestChainMarshalling(t *testing.T) {
-	t.Parallel()
-	for _, id := range generateTestIDs() {
-		for _, rules := range generateTestRules() {
-			for _, matchType := range generateTestMatchTypes() {
-				performMarshalTest(t, id, rules, matchType)
-			}
-		}
-	}
-}
-
-func TestInvalidChainData(t *testing.T) {
-	var ch Chain
-	require.Error(t, ch.UnmarshalBinary(nil))
-	require.Error(t, ch.UnmarshalBinary([]byte{}))
-	require.Error(t, ch.UnmarshalBinary([]byte{1, 2, 3}))
-	require.Error(t, ch.UnmarshalBinary([]byte("\x00\x00:aws:iam::namespace:group/so\x82\x82\x82\x82\x82\x82u\x82")))
-}
-
-func FuzzUnmarshal(f *testing.F) {
-	for _, id := range generateTestIDs() {
-		for _, rules := range generateTestRules() {
-			for _, matchType := range generateTestMatchTypes() {
-
-				chain := Chain{
-					ID:        id,
-					Rules:     rules,
-					MatchType: matchType,
-				}
-				data, err := chain.MarshalBinary()
-				require.NoError(f, err)
-				f.Add(data)
-			}
-		}
-	}
-
-	f.Fuzz(func(t *testing.T, data []byte) {
-		var ch Chain
-		require.NotPanics(t, func() {
-			_ = ch.UnmarshalBinary(data)
-		})
-	})
-}
-
-func performMarshalTest(t *testing.T, id ID, r []Rule, mt MatchType) {
-	chain := Chain{
-		ID:        id,
-		Rules:     r,
-		MatchType: mt,
-	}
-	data, err := chain.MarshalBinary()
-	require.NoError(t, err)
-
-	var unmarshalledChain Chain
-	require.NoError(t, unmarshalledChain.UnmarshalBinary(data))
-
-	require.Equal(t, chain, unmarshalledChain)
-}
-
-func generateTestIDs() []ID {
-	return []ID{
-		ID(""),
-		ID(uuid.New().String()),
-		ID("*::/"),
-		ID("avada kedavra"),
-		ID("arn:aws:iam::namespace:group/some_group"),
-		ID("$Object:homomorphicHash"),
-		ID("native:container/ns/9LPLUFZpEmfidG4n44vi2cjXKXSqWT492tCvLJiJ8W1J"),
-	}
-}
-
-func generateTestRules() [][]Rule {
-	result := [][]Rule{
-		nil,
-		{},
-		{},
-	}
-
-	for _, st := range generateTestStatuses() {
-		for _, act := range generateTestActions() {
-			for _, res := range generateTestResources() {
-				for _, cond := range generateTestConditions() {
-					result[2] = append(result[2], Rule{
-						Status:    st,
-						Actions:   act,
-						Resources: res,
-						Condition: cond,
-						Any:       true,
-					})
-					result[2] = append(result[2], Rule{
-						Status:    st,
-						Actions:   act,
-						Resources: res,
-						Condition: cond,
-					})
-				}
-			}
-		}
-	}
-
-	return result
-}
-
-func generateTestStatuses() []Status {
-	return []Status{
-		Allow,
-		NoRuleFound,
-		AccessDenied,
-		QuotaLimitReached,
-	}
-}
-
-func generateTestActions() []Actions {
-	return []Actions{
-		{
-			Inverted: true,
-			Names:    nil,
-		},
-		{
-			Names: nil,
-		},
-		{
-			Inverted: true,
-			Names:    []string{},
-		},
-		{
-			Names: []string{},
-		},
-		{
-			Inverted: true,
-			Names:    []string{native.MethodPutObject},
-		},
-		{
-			Names: []string{native.MethodPutObject},
-		},
-		{
-			Inverted: true,
-			Names:    []string{native.MethodPutObject, native.MethodDeleteContainer, native.MethodDeleteObject},
-		},
-		{
-			Names: []string{native.MethodPutObject, native.MethodDeleteContainer, native.MethodDeleteObject},
-		},
-	}
-}
-
-func generateTestResources() []Resources {
-	return []Resources{
-		{
-			Inverted: true,
-			Names:    nil,
-		},
-		{
-			Names: nil,
-		},
-		{
-			Inverted: true,
-			Names:    []string{},
-		},
-		{
-			Names: []string{},
-		},
-		{
-			Inverted: true,
-			Names:    []string{native.ResourceFormatAllObjects},
-		},
-		{
-			Names: []string{native.ResourceFormatAllObjects},
-		},
-		{
-			Inverted: true,
-			Names: []string{
-				native.ResourceFormatAllObjects,
-				fmt.Sprintf(native.ResourceFormatRootContainer, "9LPLUFZpEmfidG4n44vi2cjXKXSqWT492tCvLJiJ8W1J"),
-			},
-		},
-		{
-			Names: []string{
-				native.ResourceFormatAllObjects,
-				fmt.Sprintf(native.ResourceFormatRootContainer, "9LPLUFZpEmfidG4n44vi2cjXKXSqWT492tCvLJiJ8W1J"),
-			},
-		},
-	}
-}
-
-func generateTestConditions() [][]Condition {
-	result := [][]Condition{
-		nil,
-		{},
-		{},
-	}
-
-	for _, ct := range generateTestConditionTypes() {
-		for _, ot := range generateObjectTypes() {
-			result[2] = append(result[2], Condition{
-				Op:     ct,
-				Object: ot,
-				Key:    "",
-				Value:  "",
-			})
-
-			result[2] = append(result[2], Condition{
-				Op:     ct,
-				Object: ot,
-				Key:    "key",
-				Value:  "",
-			})
-
-			result[2] = append(result[2], Condition{
-				Op:     ct,
-				Object: ot,
-				Key:    "",
-				Value:  "value",
-			})
-
-			result[2] = append(result[2], Condition{
-				Op:     ct,
-				Object: ot,
-				Key:    "key",
-				Value:  "value",
-			})
-		}
-	}
-
-	return result
-}
-
-func generateTestConditionTypes() []ConditionType {
-	return []ConditionType{
-		CondStringEquals,
-		CondStringNotEquals,
-		CondStringEqualsIgnoreCase,
-		CondStringNotEqualsIgnoreCase,
-		CondStringLike,
-		CondStringNotLike,
-		CondStringLessThan,
-		CondStringLessThanEquals,
-		CondStringGreaterThan,
-		CondStringGreaterThanEquals,
-		CondNumericEquals,
-		CondNumericNotEquals,
-		CondNumericLessThan,
-		CondNumericLessThanEquals,
-		CondNumericGreaterThan,
-		CondNumericGreaterThanEquals,
-		CondSliceContains,
-	}
-}
-
-func generateObjectTypes() []ObjectType {
-	return []ObjectType{
-		ObjectResource,
-		ObjectRequest,
-	}
-}
-
-func generateTestMatchTypes() []MatchType {
-	return []MatchType{
-		MatchTypeDenyPriority,
-		MatchTypeFirstMatch,
-	}
-}

pkg/chain/marshal_json.go

@@ -1,145 +0,0 @@
-package chain
-
-import (
-	"fmt"
-	"strconv"
-
-	jlexer "github.com/mailru/easyjson/jlexer"
-	jwriter "github.com/mailru/easyjson/jwriter"
-)
-
-// Run `make generate`` if types added or changed
-
-var matchTypeToJSONValue = []struct {
-	mt  MatchType
-	str string
-}{
-	{MatchTypeDenyPriority, "DenyPriority"},
-	{MatchTypeFirstMatch, "FirstMatch"},
-}
-
-var statusToJSONValue = []struct {
-	s   Status
-	str string
-}{
-	{Allow, "Allow"},
-	{NoRuleFound, "NoRuleFound"},
-	{AccessDenied, "AccessDenied"},
-	{QuotaLimitReached, "QuotaLimitReached"},
-}
-
-var objectTypeToJSONValue = []struct {
-	t   ObjectType
-	str string
-}{
-	{ObjectRequest, "Request"},
-	{ObjectResource, "Resource"},
-}
-
-func (mt MatchType) MarshalEasyJSON(w *jwriter.Writer) {
-	for _, p := range matchTypeToJSONValue {
-		if p.mt == mt {
-			w.String(p.str)
-			return
-		}
-	}
-	w.String(strconv.FormatUint(uint64(mt), 10))
-}
-
-func (mt *MatchType) UnmarshalEasyJSON(l *jlexer.Lexer) {
-	str := l.String()
-	for _, p := range matchTypeToJSONValue {
-		if p.str == str {
-			*mt = p.mt
-			return
-		}
-	}
-
-	v, err := strconv.ParseUint(str, 10, 8)
-	if err != nil {
-		l.AddError(fmt.Errorf("failed to parse match type: %w", err))
-		return
-	}
-	*mt = MatchType(v)
-}
-
-func (st Status) MarshalEasyJSON(w *jwriter.Writer) {
-	for _, p := range statusToJSONValue {
-		if p.s == st {
-			w.String(p.str)
-			return
-		}
-	}
-	w.String(strconv.FormatUint(uint64(st), 10))
-}
-
-func (st *Status) UnmarshalEasyJSON(l *jlexer.Lexer) {
-	str := l.String()
-	for _, p := range statusToJSONValue {
-		if p.str == str {
-			*st = p.s
-			return
-		}
-	}
-
-	v, err := strconv.ParseUint(str, 10, 8)
-	if err != nil {
-		l.AddError(fmt.Errorf("failed to parse status: %w", err))
-		return
-	}
-	*st = Status(v)
-}
-
-func (ot ObjectType) MarshalEasyJSON(w *jwriter.Writer) {
-	for _, p := range objectTypeToJSONValue {
-		if p.t == ot {
-			w.String(p.str)
-			return
-		}
-	}
-	w.String(strconv.FormatUint(uint64(ot), 10))
-}
-
-func (ot *ObjectType) UnmarshalEasyJSON(l *jlexer.Lexer) {
-	str := l.String()
-	for _, p := range objectTypeToJSONValue {
-		if p.str == str {
-			*ot = p.t
-			return
-		}
-	}
-
-	v, err := strconv.ParseUint(str, 10, 8)
-	if err != nil {
-		l.AddError(fmt.Errorf("failed to parse object type: %w", err))
-		return
-	}
-	*ot = ObjectType(v)
-}
-
-func (ct ConditionType) MarshalEasyJSON(w *jwriter.Writer) {
-	for _, p := range condToStr {
-		if p.ct == ct {
-			w.String(p.str)
-			return
-		}
-	}
-	w.String(strconv.FormatUint(uint64(ct), 10))
-}
-
-func (ct *ConditionType) UnmarshalEasyJSON(l *jlexer.Lexer) {
-	str := l.String()
-	for _, p := range condToStr {
-		if p.str == str {
-			*ct = p.ct
-			return
-		}
-	}
-
-	v, err := strconv.ParseUint(str, 10, 8)
-	if err != nil {
-		l.AddError(fmt.Errorf("failed to parse condition type: %w", err))
-		return
-	}
-	*ct = ConditionType(v)
-}

pkg/chain/marshal_json_test.go

@@ -1,121 +0,0 @@
-package chain
-
-import (
-	"fmt"
-	"os"
-	"testing"
-
-	"git.frostfs.info/TrueCloudLab/policy-engine/schema/native"
-	"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
-	"github.com/stretchr/testify/require"
-)
-
-func TestID(t *testing.T) {
-	key, err := keys.NewPrivateKeyFromWIF("L5eVx6HcHaFpQpvjQ3fy29uKDZ8rQ34bfMVx4XfZMm52EqafpNMg") // s3-gw key
-	require.NoError(t, err)
-
-	chain1 := &Chain{ID: ID(key.PublicKey().GetScriptHash().BytesBE())}
-	data := chain1.Bytes()
-
-	var chain2 Chain
-	require.NoError(t, chain2.DecodeBytes(data))
-
-	require.Equal(t, chain1.ID, chain2.ID)
-
-	data, err = chain1.MarshalJSON()
-	require.NoError(t, err)
-
-	require.NoError(t, chain2.UnmarshalJSON(data))
-
-	require.Equal(t, chain1.ID, chain2.ID)
-}
-
-func TestMatchTypeJson(t *testing.T) {
-	for _, mt := range []MatchType{MatchTypeDenyPriority, MatchTypeFirstMatch, MatchType(100)} {
-		var chain Chain
-		chain.MatchType = mt
-
-		data, err := chain.MarshalJSON()
-		require.NoError(t, err)
-		if mt == MatchTypeDenyPriority {
-			require.Equal(t, []byte("{\"ID\":null,\"Rules\":null,\"MatchType\":\"DenyPriority\"}"), data)
-		} else if mt == MatchTypeFirstMatch {
-			require.Equal(t, []byte("{\"ID\":null,\"Rules\":null,\"MatchType\":\"FirstMatch\"}"), data)
-		} else {
-			require.Equal(t, []byte(fmt.Sprintf("{\"ID\":null,\"Rules\":null,\"MatchType\":\"%d\"}", mt)), data)
-		}
-
-		var parsed Chain
-		require.NoError(t, parsed.UnmarshalJSON(data))
-		require.Equal(t, chain, parsed)
-
-		require.Error(t, parsed.UnmarshalJSON([]byte("{\"ID\":\"\",\"Rules\":null,\"MatchType\":\"NotValid\"}")))
-	}
-}
-
-func TestJsonEnums(t *testing.T) {
-	chain := Chain{
-		ID:        []byte("2cca5ae7-cee8-428d-b45f-567fb1d03f01"), // will be encoded to base64
-		MatchType: MatchTypeFirstMatch,
-		Rules: []Rule{
-			{
-				Status: AccessDenied,
-				Actions: Actions{
-					Names: []string{native.MethodDeleteObject, native.MethodGetContainer},
-				},
-				Resources: Resources{
-					Names: []string{native.ResourceFormatAllObjects},
-				},
-				Condition: []Condition{
-					{
-						Op:     CondStringEquals,
-						Object: ObjectRequest,
-						Key:    native.PropertyKeyActorRole,
-						Value:  native.PropertyValueContainerRoleOthers,
-					},
-				},
-			},
-			{
-				Status: QuotaLimitReached,
-				Actions: Actions{
-					Inverted: true,
-					Names:    []string{native.MethodPutObject},
-				},
-				Resources: Resources{
-					Names: []string{fmt.Sprintf(native.ResourceFormatRootContainerObjects, "9LPLUFZpEmfidG4n44vi2cjXKXSqWT492tCvLJiJ8W1J")},
-				},
-				Any: true,
-				Condition: []Condition{
-					{
-						Op:     CondStringNotLike,
-						Object: ObjectResource,
-						Key:    native.PropertyKeyObjectType,
-						Value:  "regular",
-					},
-				},
-			},
-			{
-				Status: Status(100),
-				Condition: []Condition{
-					{
-						Op:     ConditionType(255),
-						Object: ObjectType(128),
-					},
-				},
-			},
-		},
-	}
-
-	data, err := chain.MarshalJSON()
-	require.NoError(t, err)
-
-	var parsed Chain
-	require.NoError(t, parsed.UnmarshalJSON(data))
-	require.Equal(t, chain, parsed)
-
-	expected, err := os.ReadFile("./testdata/test_status_json.json")
-	require.NoError(t, err)
-
-	require.NoError(t, parsed.UnmarshalJSON(expected))
-	require.Equal(t, chain, parsed)
-}

pkg/chain/testdata/test_status_json.json

@@ -1,75 +0,0 @@
-{
-    "ID": "MmNjYTVhZTctY2VlOC00MjhkLWI0NWYtNTY3ZmIxZDAzZjAx",
-    "Rules": [
-        {
-            "Status": "AccessDenied",
-            "Actions": {
-                "Inverted": false,
-                "Names": [
-                    "DeleteObject",
-                    "GetContainer"
-                ]
-            },
-            "Resources": {
-                "Inverted": false,
-                "Names": [
-                    "native:object/*"
-                ]
-            },
-            "Any": false,
-            "Condition": [
-                {
-                    "Op": "StringEquals",
-                    "Object": "Request",
-                    "Key": "$Actor:role",
-                    "Value": "others"
-                }
-            ]
-        },
-        {
-            "Status": "QuotaLimitReached",
-            "Actions": {
-                "Inverted": true,
-                "Names": [
-                    "PutObject"
-                ]
-            },
-            "Resources": {
-                "Inverted": false,
-                "Names": [
-                    "native:object//9LPLUFZpEmfidG4n44vi2cjXKXSqWT492tCvLJiJ8W1J/*"
-                ]
-            },
-            "Any": true,
-            "Condition": [
-                {
-                    "Op": "StringNotLike",
-                    "Object": "Resource",
-                    "Key": "$Object:objectType",
-                    "Value": "regular"
-                }
-            ]
-        },
-        {
-            "Status": "100",
-            "Actions": {
-                "Inverted": false,
-                "Names": null
-            },
-            "Resources": {
-                "Inverted": false,
-                "Names": null
-            },
-            "Any": false,
-            "Condition": [
-                {
-                    "Op": "255",
-                    "Object": "128",
-                    "Key": "",
-                    "Value": ""
-                }
-            ]
-        }
-    ],
-    "MatchType": "FirstMatch"
-}

pkg/engine/chain_router.go

@@ -1,116 +0,0 @@
-package engine
-
-import (
-	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/chain"
-	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/resource"
-)
-
-type defaultChainRouter struct {
-	morph MorphRuleChainStorageReader
-
-	local LocalOverrideStorage
-}
-
-func NewDefaultChainRouter(morph MorphRuleChainStorageReader) ChainRouter {
-	return &defaultChainRouter{
-		morph: morph,
-	}
-}
-
-func NewDefaultChainRouterWithLocalOverrides(morph MorphRuleChainStorageReader, local LocalOverrideStorage) ChainRouter {
-	return &defaultChainRouter{
-		morph: morph,
-		local: local,
-	}
-}
-
-func (dr *defaultChainRouter) IsAllowed(name chain.Name, rt RequestTarget, r resource.Request) (status chain.Status, ruleFound bool, err error) {
-	status, ruleFound, err = dr.checkLocal(name, rt, r)
-	if err != nil {
-		return chain.NoRuleFound, false, err
-	} else if ruleFound {
-		// The local overrides have the highest priority and thus
-		// morph rules are not considered if a local one is found.
-		return
-	}
-
-	status, ruleFound, err = dr.checkMorph(name, rt, r)
-	return
-}
-
-func (dr *defaultChainRouter) checkLocal(name chain.Name, rt RequestTarget, r resource.Request) (status chain.Status, ruleFound bool, err error) {
-	if dr.local == nil {
-		return
-	}
-	var ruleFounds []bool
-	for _, target := range rt.Targets() {
-		status, ruleFound, err = dr.matchLocalOverrides(name, target, r)
-		if err != nil || ruleFound && status != chain.Allow {
-			return
-		}
-		ruleFounds = append(ruleFounds, ruleFound)
-	}
-
-	status = chain.NoRuleFound
-	for _, ruleFound = range ruleFounds {
-		if ruleFound {
-			status = chain.Allow
-			break
-		}
-	}
-	return
-}
-
-func (dr *defaultChainRouter) checkMorph(name chain.Name, rt RequestTarget, r resource.Request) (status chain.Status, ruleFound bool, err error) {
-	var ruleFounds []bool
-	for _, target := range rt.Targets() {
-		status, ruleFound, err = dr.matchMorphRuleChains(name, target, r)
-		if err != nil || ruleFound && status != chain.Allow {
-			return
-		}
-		ruleFounds = append(ruleFounds, ruleFound)
-	}
-
-	status = chain.NoRuleFound
-	for _, ruleFound = range ruleFounds {
-		if ruleFound {
-			status = chain.Allow
-			break
-		}
-	}
-	return
-}
-
-func (dr *defaultChainRouter) matchLocalOverrides(name chain.Name, target Target, r resource.Request) (status chain.Status, ruleFound bool, err error) {
-	localOverrides, err := dr.local.ListOverrides(name, target)
-	if err != nil {
-		return
-	}
-	status, ruleFound = dr.getStatusFromChains(localOverrides, r)
-	return
-}
-
-func (dr *defaultChainRouter) matchMorphRuleChains(name chain.Name, target Target, r resource.Request) (status chain.Status, ruleFound bool, err error) {
-	namespaceChains, err := dr.morph.ListMorphRuleChains(name, target)
-	if err != nil {
-		return chain.NoRuleFound, false, err
-	}
-	status, ruleFound = dr.getStatusFromChains(namespaceChains, r)
-	return
-}
-
-func (dr *defaultChainRouter) getStatusFromChains(chains []*chain.Chain, r resource.Request) (chain.Status, bool) {
-	var allow bool
-	for _, c := range chains {
-		if status, found := c.Match(r); found {
-			if status != chain.Allow {
-				return status, true
-			}
-			allow = true
-		}
-	}
-	if allow {
-		return chain.Allow, true
-	}
-	return chain.NoRuleFound, false
-}

pkg/engine/errors.go

@@ -1,10 +0,0 @@
-package engine
-
-import "errors"
-
-var (
-	ErrUnknownTarget     = errors.New("unknown target type")
-	ErrChainNotFound     = errors.New("chain not found")
-	ErrChainNameNotFound = errors.New("chain name not found")
-	ErrResourceNotFound  = errors.New("resource not found")
-)

pkg/engine/inmemory/inmemory.go

@@ -1,48 +0,0 @@
-package inmemory
-
-import (
-	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/chain"
-	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/engine"
-	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/resource"
-)
-
-type inmemory struct {
-	router engine.ChainRouter
-
-	morph engine.MorphRuleChainStorage
-
-	local engine.LocalOverrideStorage
-}
-
-// NewInMemoryLocalOverrides returns new inmemory instance of chain storage with
-// local overrides manager.
-func NewInMemoryLocalOverrides() engine.LocalOverrideEngine {
-	morph := NewInmemoryMorphRuleChainStorage()
-	local := NewInmemoryLocalStorage()
-	return &inmemory{
-		router: engine.NewDefaultChainRouterWithLocalOverrides(morph, local),
-		morph:  morph,
-		local:  local,
-	}
-}
-
-// NewInMemory returns new inmemory instance of chain storage.
-func NewInMemory() engine.Engine {
-	morph := NewInmemoryMorphRuleChainStorage()
-	return &inmemory{
-		router: engine.NewDefaultChainRouter(morph),
-		morph:  morph,
-	}
-}
-
-func (im *inmemory) LocalStorage() engine.LocalOverrideStorage {
-	return im.local
-}
-
-func (im *inmemory) MorphRuleChainStorage() engine.MorphRuleChainStorage {
-	return im.morph
-}
-
-func (im *inmemory) IsAllowed(name chain.Name, rt engine.RequestTarget, r resource.Request) (status chain.Status, ruleFound bool, err error) {
-	return im.router.IsAllowed(name, rt, r)
-}

pkg/engine/inmemory/inmemory_test.go

@@ -1,206 +0,0 @@
-package inmemory
-
-import (
-	"testing"
-
-	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/chain"
-	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/engine"
-	resourcetest "git.frostfs.info/TrueCloudLab/policy-engine/pkg/resource/testutil"
-	"github.com/stretchr/testify/require"
-)
-
-func TestInmemory(t *testing.T) {
-	const (
-		object     = "native::object::abc/xyz"
-		container  = "native::object::abc/*"
-		namespace  = "Tenant1"
-		namespace2 = "Tenant2"
-		actor1     = "owner1"
-		actor2     = "owner2"
-	)
-
-	s := NewInMemoryLocalOverrides()
-
-	// Object which was put via S3.
-	res := resourcetest.NewResource(object, map[string]string{"FromS3": "true"})
-	// Request initiating from the trusted subnet and actor.
-	reqGood := resourcetest.NewRequest("native::object::put", res, map[string]string{
-		"SourceIP": "10.1.1.12",
-		"Actor":    actor1,
-	})
-
-	status, ok, _ := s.IsAllowed(chain.Ingress, engine.NewRequestTargetWithNamespace(namespace), reqGood)
-	require.Equal(t, chain.NoRuleFound, status)
-	require.False(t, ok)
-
-	s.MorphRuleChainStorage().AddMorphRuleChain(chain.Ingress, engine.NamespaceTarget(namespace), &chain.Chain{
-		Rules: []chain.Rule{
-			{ // Restrict to remove ANY object from the namespace.
-				Status:    chain.AccessDenied,
-				Actions:   chain.Actions{Names: []string{"native::object::delete"}},
-				Resources: chain.Resources{Names: []string{"native::object::*"}},
-			},
-			{ // Allow to put object only from the trusted subnet AND trusted actor, deny otherwise.
-				Status:    chain.AccessDenied,
-				Actions:   chain.Actions{Names: []string{"native::object::put"}},
-				Resources: chain.Resources{Names: []string{"native::object::*"}},
-				Any:       true,
-				Condition: []chain.Condition{
-					{
-						Op:     chain.CondStringNotLike,
-						Object: chain.ObjectRequest,
-						Key:    "SourceIP",
-						Value:  "10.1.1.*",
-					},
-					{
-						Op:     chain.CondStringNotEquals,
-						Object: chain.ObjectRequest,
-						Key:    "Actor",
-						Value:  actor1,
-					},
-				},
-			},
-		},
-	})
-
-	s.MorphRuleChainStorage().AddMorphRuleChain(chain.Ingress, engine.NamespaceTarget(namespace2), &chain.Chain{
-		Rules: []chain.Rule{
-			{ // Deny all expect "native::object::get" for all objects expect "native::object::abc/xyz".
-				Status:    chain.AccessDenied,
-				Actions:   chain.Actions{Inverted: true, Names: []string{"native::object::get"}},
-				Resources: chain.Resources{Inverted: true, Names: []string{object}},
-			},
-		},
-	})
-
-	s.MorphRuleChainStorage().AddMorphRuleChain(chain.Ingress, engine.ContainerTarget(container), &chain.Chain{
-		Rules: []chain.Rule{
-			{ // Allow to actor2 to get objects from the specific container only if they have `Department=HR` attribute.
-				Status:    chain.Allow,
-				Actions:   chain.Actions{Names: []string{"native::object::get"}},
-				Resources: chain.Resources{Names: []string{"native::object::abc/*"}},
-				Condition: []chain.Condition{
-					{
-						Op:     chain.CondStringEquals,
-						Object: chain.ObjectResource,
-						Key:    "Department",
-						Value:  "HR",
-					},
-					{
-						Op:     chain.CondStringEquals,
-						Object: chain.ObjectRequest,
-						Key:    "Actor",
-						Value:  actor2,
-					},
-				},
-			},
-		},
-	})
-
-	t.Run("bad subnet, namespace deny", func(t *testing.T) {
-		// Request initiating from the untrusted subnet.
-		reqBadIP := resourcetest.NewRequest("native::object::put", res, map[string]string{
-			"SourceIP": "10.122.1.20",
-			"Actor":    actor1,
-		})
-		status, ok, _ := s.IsAllowed(chain.Ingress, engine.NewRequestTarget(namespace, container), reqBadIP)
-		require.Equal(t, chain.AccessDenied, status)
-		require.True(t, ok)
-	})
-	t.Run("bad actor, namespace deny", func(t *testing.T) {
-		// Request initiating from the untrusted actor.
-		reqBadActor := resourcetest.NewRequest("native::object::put", res, map[string]string{
-			"SourceIP": "10.1.1.13",
-			"Actor":    actor2,
-		})
-		status, ok, _ := s.IsAllowed(chain.Ingress, engine.NewRequestTarget(namespace, container), reqBadActor)
-		require.Equal(t, chain.AccessDenied, status)
-		require.True(t, ok)
-	})
-	t.Run("bad object, container deny", func(t *testing.T) {
-		objGood := resourcetest.NewResource("native::object::abc/id1", map[string]string{"Department": "HR"})
-		objBadAttr := resourcetest.NewResource("native::object::abc/id2", map[string]string{"Department": "Support"})
-
-		status, ok, _ := s.IsAllowed(chain.Ingress, engine.NewRequestTarget(namespace, container), resourcetest.NewRequest("native::object::get", objGood, map[string]string{
-			"SourceIP": "10.1.1.14",
-			"Actor":    actor2,
-		}))
-		require.Equal(t, chain.Allow, status)
-		require.True(t, ok)
-
-		status, ok, _ = s.IsAllowed(chain.Ingress, engine.NewRequestTarget(namespace, container), resourcetest.NewRequest("native::object::get", objBadAttr, map[string]string{
-			"SourceIP": "10.1.1.14",
-			"Actor":    actor2,
-		}))
-		require.Equal(t, chain.NoRuleFound, status)
-		require.False(t, ok)
-	})
-	t.Run("bad operation, namespace deny", func(t *testing.T) {
-		// Request with the forbidden operation.
-		reqBadOperation := resourcetest.NewRequest("native::object::delete", res, map[string]string{
-			"SourceIP": "10.1.1.12",
-			"Actor":    actor1,
-		})
-		status, ok, _ := s.IsAllowed(chain.Ingress, engine.NewRequestTarget(namespace, container), reqBadOperation)
-		require.Equal(t, chain.AccessDenied, status)
-		require.True(t, ok)
-	})
-	t.Run("inverted rules", func(t *testing.T) {
-		req := resourcetest.NewRequest("native::object::put", resourcetest.NewResource(object, nil), nil)
-		status, ok, _ = s.IsAllowed(chain.Ingress, engine.NewRequestTarget(namespace2, container), req)
-		require.Equal(t, chain.NoRuleFound, status)
-		require.False(t, ok)
-
-		req = resourcetest.NewRequest("native::object::put", resourcetest.NewResource("native::object::cba/def", nil), nil)
-		status, ok, _ = s.IsAllowed(chain.Ingress, engine.NewRequestTarget(namespace2, container), req)
-		require.Equal(t, chain.AccessDenied, status)
-		require.True(t, ok)
-
-		req = resourcetest.NewRequest("native::object::get", resourcetest.NewResource("native::object::cba/def", nil), nil)
-		status, ok, _ = s.IsAllowed(chain.Ingress, engine.NewRequestTarget(namespace2, container), req)
-		require.Equal(t, chain.NoRuleFound, status)
-		require.False(t, ok)
-	})
-	t.Run("good", func(t *testing.T) {
-		status, ok, _ = s.IsAllowed(chain.Ingress, engine.NewRequestTarget(namespace, container), reqGood)
-		require.Equal(t, chain.NoRuleFound, status)
-		require.False(t, ok)
-
-		t.Run("quota on a different container", func(t *testing.T) {
-			s.LocalStorage().AddOverride(chain.Ingress, engine.ContainerTarget(container), &chain.Chain{
-				Rules: []chain.Rule{{
-					Status:    chain.QuotaLimitReached,
-					Actions:   chain.Actions{Names: []string{"native::object::put"}},
-					Resources: chain.Resources{Names: []string{"native::object::cba/*"}},
-				}},
-			})
-
-			status, ok, _ = s.IsAllowed(chain.Ingress, engine.NewRequestTarget(namespace, container), reqGood)
-			require.Equal(t, chain.NoRuleFound, status)
-			require.False(t, ok)
-		})
-
-		var quotaRuleChainID chain.ID
-		t.Run("quota on the request container", func(t *testing.T) {
-			quotaRuleChainID, _ = s.LocalStorage().AddOverride(chain.Ingress, engine.ContainerTarget(container), &chain.Chain{
-				Rules: []chain.Rule{{
-					Status:    chain.QuotaLimitReached,
-					Actions:   chain.Actions{Names: []string{"native::object::put"}},
-					Resources: chain.Resources{Names: []string{"native::object::abc/*"}},
-				}},
-			})
-
-			status, ok, _ = s.IsAllowed(chain.Ingress, engine.NewRequestTarget(namespace, container), reqGood)
-			require.Equal(t, chain.QuotaLimitReached, status)
-			require.True(t, ok)
-		})
-		t.Run("removed quota on the request container", func(t *testing.T) {
-			err := s.LocalStorage().RemoveOverride(chain.Ingress, engine.ContainerTarget(container), quotaRuleChainID)
-			require.NoError(t, err)
-
-			status, ok, _ = s.IsAllowed(chain.Ingress, engine.NewRequestTarget(namespace, container), reqGood)
-			require.Equal(t, chain.NoRuleFound, status)
-			require.False(t, ok)
-		})
-	})
-}

pkg/engine/inmemory/local_storage.go

@@ -1,158 +0,0 @@
-package inmemory
-
-import (
-	"bytes"
-	"fmt"
-	"math/rand"
-	"strings"
-	"sync"
-
-	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/chain"
-	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/engine"
-	"git.frostfs.info/TrueCloudLab/policy-engine/util"
-)
-
-type targetToChain map[engine.Target][]*chain.Chain
-
-type inmemoryLocalStorage struct {
-	usedChainID          map[string]struct{}
-	nameToResourceChains map[chain.Name]targetToChain
-	guard                *sync.RWMutex
-}
-
-func NewInmemoryLocalStorage() engine.LocalOverrideStorage {
-	return &inmemoryLocalStorage{
-		usedChainID:          map[string]struct{}{},
-		nameToResourceChains: make(map[chain.Name]targetToChain),
-		guard:                &sync.RWMutex{},
-	}
-}
-
-func (s *inmemoryLocalStorage) generateChainID(name chain.Name, target engine.Target) chain.ID {
-	var id chain.ID
-	for {
-		suffix := rand.Uint32() % 100
-		sid := fmt.Sprintf("%s:%s/%d", name, target.Name, suffix)
-		sid = strings.ReplaceAll(sid, "*", "")
-		sid = strings.ReplaceAll(sid, "/", ":")
-		sid = strings.ReplaceAll(sid, "::", ":")
-		_, ok := s.usedChainID[sid]
-		if ok {
-			continue
-		}
-		s.usedChainID[sid] = struct{}{}
-
-		id = chain.ID(sid)
-		break
-	}
-	return id
-}
-
-func (s *inmemoryLocalStorage) AddOverride(name chain.Name, target engine.Target, c *chain.Chain) (chain.ID, error) {
-	s.guard.Lock()
-	defer s.guard.Unlock()
-
-	// AddOverride assigns generated chain ID if it has not been assigned.
-	if len(c.ID) == 0 {
-		c.ID = s.generateChainID(name, target)
-	}
-	if s.nameToResourceChains[name] == nil {
-		s.nameToResourceChains[name] = make(targetToChain)
-	}
-	rc := s.nameToResourceChains[name]
-	for i := range rc[target] {
-		if bytes.Equal(rc[target][i].ID, c.ID) {
-			rc[target][i] = c
-			return c.ID, nil
-		}
-	}
-	rc[target] = append(rc[target], c)
-	return c.ID, nil
-}
-
-func (s *inmemoryLocalStorage) GetOverride(name chain.Name, target engine.Target, chainID chain.ID) (*chain.Chain, error) {
-	s.guard.RLock()
-	defer s.guard.RUnlock()
-
-	if _, ok := s.nameToResourceChains[name]; !ok {
-		return nil, engine.ErrChainNameNotFound
-	}
-	if target.Name == "" {
-		target.Name = "root"
-	}
-	chains, ok := s.nameToResourceChains[name][target]
-	if !ok {
-		return nil, engine.ErrResourceNotFound
-	}
-	for _, c := range chains {
-		if bytes.Equal(c.ID, chainID) {
-			return c, nil
-		}
-	}
-	return nil, engine.ErrChainNotFound
-}
-
-func (s *inmemoryLocalStorage) RemoveOverride(name chain.Name, target engine.Target, chainID chain.ID) error {
-	s.guard.Lock()
-	defer s.guard.Unlock()
-
-	if _, ok := s.nameToResourceChains[name]; !ok {
-		return engine.ErrChainNameNotFound
-	}
-	if target.Name == "" {
-		target.Name = "root"
-	}
-	chains, ok := s.nameToResourceChains[name][target]
-	if !ok {
-		return engine.ErrResourceNotFound
-	}
-	for i, c := range chains {
-		if bytes.Equal(c.ID, chainID) {
-			s.nameToResourceChains[name][target] = append(chains[:i], chains[i+1:]...)
-			return nil
-		}
-	}
-	return engine.ErrChainNotFound
-}
-
-func (s *inmemoryLocalStorage) ListOverrides(name chain.Name, target engine.Target) ([]*chain.Chain, error) {
-	s.guard.RLock()
-	defer s.guard.RUnlock()
-
-	rcs, ok := s.nameToResourceChains[name]
-	if !ok {
-		return []*chain.Chain{}, nil
-	}
-	if target.Name == "" {
-		target.Name = "root"
-	}
-	for t, chains := range rcs {
-		if t.Type != target.Type {
-			continue
-		}
-		if !util.GlobMatch(target.Name, t.Name) {
-			continue
-		}
-		return chains, nil
-	}
-	return []*chain.Chain{}, nil
-}
-
-func (s *inmemoryLocalStorage) DropAllOverrides(name chain.Name) error {
-	s.guard.Lock()
-	defer s.guard.Unlock()
-
-	s.nameToResourceChains[name] = make(targetToChain)
-	return nil
-}
-
-func (s *inmemoryLocalStorage) ListOverrideDefinedTargets(name chain.Name) ([]engine.Target, error) {
-	s.guard.RLock()
-	defer s.guard.RUnlock()
-	ttc := s.nameToResourceChains[name]
-	var keys []engine.Target
-	for k := range ttc {
-		keys = append(keys, k)
-	}
-	return keys, nil
-}

pkg/engine/inmemory/local_storage_test.go

@@ -1,222 +0,0 @@
-package inmemory
-
-import (
-	"testing"
-
-	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/chain"
-	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/engine"
-	"github.com/stretchr/testify/require"
-)
-
-const (
-	container       = "native:::object/ExYw/*"
-	chainID         = "ingress:ExYw"
-	nonExistChainId = "ingress:LxGyWyL"
-)
-
-var resrc = engine.ContainerTarget(container)
-
-func testInmemLocalStorage() *inmemoryLocalStorage {
-	return NewInmemoryLocalStorage().(*inmemoryLocalStorage)
-}
-
-func TestAddOverride(t *testing.T) {
-	inmem := testInmemLocalStorage()
-
-	inmem.AddOverride(chain.Ingress, resrc, &chain.Chain{
-		Rules: []chain.Rule{
-			{
-				Status:    chain.AccessDenied,
-				Actions:   chain.Actions{Names: []string{"native::object::delete"}},
-				Resources: chain.Resources{Names: []string{"native::object::*"}},
-			},
-		},
-	})
-
-	ingressChains, ok := inmem.nameToResourceChains[chain.Ingress]
-	require.True(t, ok)
-	resourceChains, ok := ingressChains[resrc]
-	require.True(t, ok)
-	require.Len(t, resourceChains, 1)
-	require.Len(t, resourceChains[0].Rules, 1)
-
-	inmem.AddOverride(chain.Ingress, resrc, &chain.Chain{
-		Rules: []chain.Rule{
-			{
-				Status:    chain.QuotaLimitReached,
-				Actions:   chain.Actions{Names: []string{"native::object::put"}},
-				Resources: chain.Resources{Names: []string{"native::object::*"}},
-			},
-			{
-				Status:    chain.AccessDenied,
-				Actions:   chain.Actions{Names: []string{"native::object::get"}},
-				Resources: chain.Resources{Names: []string{"native::object::*"}},
-			},
-		},
-	})
-
-	ingressChains, ok = inmem.nameToResourceChains[chain.Ingress]
-	require.True(t, ok)
-	resourceChains, ok = ingressChains[resrc]
-	require.True(t, ok)
-	require.Len(t, resourceChains, 2)
-	require.Len(t, resourceChains[1].Rules, 2)
-}
-
-func TestRemoveOverride(t *testing.T) {
-	t.Run("remove from empty storage", func(t *testing.T) {
-		inmem := testInmemLocalStorage()
-		err := inmem.RemoveOverride(chain.Ingress, resrc, chain.ID(chainID))
-		require.ErrorIs(t, err, engine.ErrChainNameNotFound)
-	})
-
-	t.Run("remove not added chain id", func(t *testing.T) {
-		inmem := testInmemLocalStorage()
-		inmem.AddOverride(chain.Ingress, resrc, &chain.Chain{
-			ID: chain.ID(chainID),
-			Rules: []chain.Rule{
-				{ // Restrict to remove ANY object from the namespace.
-					Status:    chain.AccessDenied,
-					Actions:   chain.Actions{Names: []string{"native::object::delete"}},
-					Resources: chain.Resources{Names: []string{"native::object::*"}},
-				},
-			},
-		})
-
-		err := inmem.RemoveOverride(chain.Ingress, resrc, chain.ID(nonExistChainId))
-		require.ErrorIs(t, err, engine.ErrChainNotFound)
-	})
-
-	t.Run("remove existing chain id", func(t *testing.T) {
-		inmem := testInmemLocalStorage()
-		inmem.AddOverride(chain.Ingress, resrc, &chain.Chain{
-			ID: chain.ID(chainID),
-			Rules: []chain.Rule{
-				{ // Restrict to remove ANY object from the namespace.
-					Status:    chain.AccessDenied,
-					Actions:   chain.Actions{Names: []string{"native::object::delete"}},
-					Resources: chain.Resources{Names: []string{"native::object::*"}},
-				},
-			},
-		})
-
-		err := inmem.RemoveOverride(chain.Ingress, resrc, chain.ID(chainID))
-		require.NoError(t, err)
-
-		ingressChains, ok := inmem.nameToResourceChains[chain.Ingress]
-		require.True(t, ok)
-		require.Len(t, ingressChains, 1)
-		resourceChains, ok := ingressChains[resrc]
-		require.True(t, ok)
-		require.Len(t, resourceChains, 0)
-	})
-}
-
-func TestGetOverride(t *testing.T) {
-	addChain := &chain.Chain{
-		ID: chain.ID(chainID),
-		Rules: []chain.Rule{
-			{ // Restrict to remove ANY object from the namespace.
-				Status:    chain.AccessDenied,
-				Actions:   chain.Actions{Names: []string{"native::object::delete"}},
-				Resources: chain.Resources{Names: []string{"native::object::*"}},
-			},
-		},
-	}
-
-	t.Run("get from empty storage", func(t *testing.T) {
-		inmem := testInmemLocalStorage()
-		_, err := inmem.GetOverride(chain.Ingress, resrc, chain.ID(chainID))
-		require.ErrorIs(t, err, engine.ErrChainNameNotFound)
-	})
-
-	t.Run("get not added chain id", func(t *testing.T) {
-		inmem := testInmemLocalStorage()
-		inmem.AddOverride(chain.Ingress, resrc, addChain)
-
-		const nonExistingChainID = "ingress:LxGyWyL"
-
-		_, err := inmem.GetOverride(chain.Ingress, resrc, chain.ID(nonExistingChainID))
-		require.ErrorIs(t, err, engine.ErrChainNotFound)
-	})
-
-	t.Run("get existing chain id", func(t *testing.T) {
-		inmem := testInmemLocalStorage()
-		inmem.AddOverride(chain.Ingress, resrc, addChain)
-
-		c, err := inmem.GetOverride(chain.Ingress, resrc, chain.ID(chainID))
-		require.NoError(t, err)
-		require.EqualValues(t, *addChain, *c)
-	})
-
-	t.Run("get removed chain id", func(t *testing.T) {
-		inmem := testInmemLocalStorage()
-		inmem.AddOverride(chain.Ingress, resrc, addChain)
-
-		err := inmem.RemoveOverride(chain.Ingress, resrc, chain.ID(chainID))
-		require.NoError(t, err)
-
-		_, err = inmem.GetOverride(chain.Ingress, resrc, chain.ID(chainID))
-		require.ErrorIs(t, err, engine.ErrChainNotFound)
-	})
-}
-
-func TestListOverrides(t *testing.T) {
-	addChain := &chain.Chain{
-		ID: chain.ID(chainID),
-		Rules: []chain.Rule{
-			{ // Restrict to remove ANY object from the namespace.
-				Status:    chain.AccessDenied,
-				Actions:   chain.Actions{Names: []string{"native::object::delete"}},
-				Resources: chain.Resources{Names: []string{"native::object::*"}},
-			},
-		},
-	}
-
-	t.Run("list empty storage", func(t *testing.T) {
-		inmem := testInmemLocalStorage()
-		l, _ := inmem.ListOverrides(chain.Ingress, resrc)
-		require.Len(t, l, 0)
-	})
-
-	t.Run("list with one added resource", func(t *testing.T) {
-		inmem := testInmemLocalStorage()
-		inmem.AddOverride(chain.Ingress, resrc, addChain)
-		l, _ := inmem.ListOverrides(chain.Ingress, resrc)
-		require.Len(t, l, 1)
-		targets, err := inmem.ListOverrideDefinedTargets(chain.Ingress)
-		require.NoError(t, err)
-		require.Equal(t, []engine.Target{resrc}, targets)
-	})
-
-	t.Run("list after drop", func(t *testing.T) {
-		inmem := testInmemLocalStorage()
-		inmem.AddOverride(chain.Ingress, resrc, addChain)
-		l, _ := inmem.ListOverrides(chain.Ingress, resrc)
-		require.Len(t, l, 1)
-
-		_ = inmem.DropAllOverrides(chain.Ingress)
-		l, _ = inmem.ListOverrides(chain.Ingress, resrc)
-		require.Len(t, l, 0)
-	})
-}
-
-func TestGenerateID(t *testing.T) {
-	inmem := testInmemLocalStorage()
-	ids := make([]chain.ID, 0, 100)
-	for i := 0; i < 100; i++ {
-		ids = append(ids, inmem.generateChainID(chain.Ingress, resrc))
-	}
-	require.False(t, hasDuplicates(ids))
-}
-
-func hasDuplicates(ids []chain.ID) bool {
-	seen := make(map[string]bool)
-	for _, id := range ids {
-		if seen[string(id)] {
-			return true
-		}
-		seen[string(id)] = true
-	}
-	return false
-}

pkg/engine/inmemory/morph_storage.go

@@ -1,62 +0,0 @@
-package inmemory
-
-import (
-	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/chain"
-	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/engine"
-	"github.com/nspcc-dev/neo-go/pkg/util"
-)
-
-type inmemoryMorphRuleChainStorage struct {
-	nameToNamespaceChains engine.LocalOverrideStorage
-	nameToContainerChains engine.LocalOverrideStorage
-}
-
-func NewInmemoryMorphRuleChainStorage() engine.MorphRuleChainStorage {
-	return &inmemoryMorphRuleChainStorage{
-		nameToNamespaceChains: NewInmemoryLocalStorage(),
-		nameToContainerChains: NewInmemoryLocalStorage(),
-	}
-}
-
-func (s *inmemoryMorphRuleChainStorage) AddMorphRuleChain(name chain.Name, target engine.Target, c *chain.Chain) (_ util.Uint256, _ uint32, err error) {
-	switch target.Type {
-	case engine.Namespace:
-		_, err = s.nameToNamespaceChains.AddOverride(name, target, c)
-	case engine.Container:
-		_, err = s.nameToContainerChains.AddOverride(name, target, c)
-	default:
-		err = engine.ErrUnknownTarget
-	}
-	return
-}
-
-func (s *inmemoryMorphRuleChainStorage) RemoveMorphRuleChain(name chain.Name, target engine.Target, chainID chain.ID) (_ util.Uint256, _ uint32, err error) {
-	switch target.Type {
-	case engine.Namespace:
-		err = s.nameToNamespaceChains.RemoveOverride(name, target, chainID)
-	case engine.Container:
-		err = s.nameToContainerChains.RemoveOverride(name, target, chainID)
-	default:
-		err = engine.ErrUnknownTarget
-	}
-	return
-}
-
-func (s *inmemoryMorphRuleChainStorage) ListMorphRuleChains(name chain.Name, target engine.Target) ([]*chain.Chain, error) {
-	switch target.Type {
-	case engine.Namespace:
-		return s.nameToNamespaceChains.ListOverrides(name, target)
-	case engine.Container:
-		return s.nameToContainerChains.ListOverrides(name, target)
-	default:
-	}
-	return nil, engine.ErrUnknownTarget
-}
-
-func (s *inmemoryMorphRuleChainStorage) GetAdmin() (util.Uint160, error) {
-	panic("not implemented")
-}
-
-func (s *inmemoryMorphRuleChainStorage) SetAdmin(_ util.Uint160) (util.Uint256, uint32, error) {
-	panic("not implemented")
-}

pkg/engine/interface.go

@@ -1,133 +0,0 @@
-package engine
-
-import (
-	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/chain"
-	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/resource"
-	"github.com/nspcc-dev/neo-go/pkg/util"
-)
-
-type ChainRouter interface {
-	// IsAllowed returns status for the operation after all checks.
-	// The second return value signifies whether a matching rule was found.
-	IsAllowed(name chain.Name, reqTarget RequestTarget, r resource.Request) (status chain.Status, found bool, err error)
-}
-
-// LocalOverrideStorage is the interface to manage local overrides defined
-// for a node. Local overrides have a higher priority than chains got from morph storage.
-type LocalOverrideStorage interface {
-	AddOverride(name chain.Name, target Target, c *chain.Chain) (chain.ID, error)
-
-	GetOverride(name chain.Name, target Target, chainID chain.ID) (*chain.Chain, error)
-
-	RemoveOverride(name chain.Name, target Target, chainID chain.ID) error
-
-	ListOverrides(name chain.Name, target Target) ([]*chain.Chain, error)
-
-	DropAllOverrides(name chain.Name) error
-
-	ListOverrideDefinedTargets(name chain.Name) ([]Target, error)
-}
-
-type TargetType rune
-
-const (
-	Namespace TargetType = 'n'
-	Container TargetType = 'c'
-)
-
-type Target struct {
-	Type TargetType
-	Name string
-}
-
-// RequestTarget combines several targets on which the request is performed.
-type RequestTarget struct {
-	Namespace *Target
-	Container *Target
-}
-
-func NewRequestTargetWithNamespace(namespace string) RequestTarget {
-	nt := NamespaceTarget(namespace)
-	return RequestTarget{
-		Namespace: &nt,
-	}
-}
-
-func NewRequestTargetWithContainer(container string) RequestTarget {
-	ct := ContainerTarget(container)
-	return RequestTarget{
-		Container: &ct,
-	}
-}
-
-func NewRequestTarget(namespace, container string) RequestTarget {
-	nt := NamespaceTarget(namespace)
-	ct := ContainerTarget(container)
-	return RequestTarget{
-		Namespace: &nt,
-		Container: &ct,
-	}
-}
-
-func (rt *RequestTarget) Targets() (targets []Target) {
-	if rt.Namespace != nil {
-		targets = append(targets, *rt.Namespace)
-	}
-	if rt.Container != nil {
-		targets = append(targets, *rt.Container)
-	}
-	return
-}
-
-func NamespaceTarget(namespace string) Target {
-	return Target{
-		Type: Namespace,
-		Name: namespace,
-	}
-}
-
-func ContainerTarget(container string) Target {
-	return Target{
-		Type: Container,
-		Name: container,
-	}
-}
-
-// MorphRuleChainStorageReader is the interface that provides read-only methods to receive
-// data like chains, target or admin from a chain storage.
-type MorphRuleChainStorageReader interface {
-	// ListMorphRuleChains just lists deserialized chains.
-	ListMorphRuleChains(name chain.Name, target Target) ([]*chain.Chain, error)
-
-	GetAdmin() (util.Uint160, error)
-}
-
-// MorphRuleChainStorage is the interface to read and manage data within a chain storage.
-// Basically, this implies that the storage manages rules stored in policy contract.
-type MorphRuleChainStorage interface {
-	MorphRuleChainStorageReader
-
-	// AddMorphRuleChain adds a chain rule to the policy contract and returns transaction hash, VUB and error.
-	AddMorphRuleChain(name chain.Name, target Target, c *chain.Chain) (util.Uint256, uint32, error)
-
-	// RemoveMorphRuleChain removes a chain rule to the policy contract and returns transaction hash, VUB and error.
-	RemoveMorphRuleChain(name chain.Name, target Target, chainID chain.ID) (util.Uint256, uint32, error)
-
-	SetAdmin(addr util.Uint160) (util.Uint256, uint32, error)
-}
-
-// Engine is the interface that provides methods to check request permissions checking
-// chain rules from morph client - this implies using the policy contract.
-type Engine interface {
-	ChainRouter
-
-	MorphRuleChainStorage() MorphRuleChainStorage
-}
-
-// LocalOverrideEngine is extended Engine that also provides methods to manage a local
-// chain rule storage. Local overrides must have the highest priority during request checking.
-type LocalOverrideEngine interface {
-	Engine
-
-	LocalStorage() LocalOverrideStorage
-}

pkg/marshal/marshal.go

@@ -1,267 +0,0 @@
-package marshal
-
-import (
-	"encoding/binary"
-	"fmt"
-)
-
-const (
-	Version byte = 0 // increase if breaking change
-
-	ByteSize  int = 1
-	UInt8Size int = ByteSize
-	BoolSize  int = ByteSize
-
-	nilSlice     int64 = -1
-	nilSliceSize int   = 1
-
-	byteTrue  uint8 = 1
-	byteFalse uint8 = 0
-
-	// maxSliceLen taken from https://github.com/neo-project/neo/blob/38218bbee5bbe8b33cd8f9453465a19381c9a547/src/Neo/IO/Helper.cs#L77
-	maxSliceLen = 0x1000000
-)
-
-type MarshallerError struct {
-	errMsg string
-	offset int
-}
-
-func (e *MarshallerError) Error() string {
-	if e == nil {
-		return ""
-	}
-	if e.offset < 0 {
-		return e.errMsg
-	}
-	return fmt.Sprintf("%s (offset: %d)", e.errMsg, e.offset)
-}
-
-func errBufTooSmall(t string, marshal bool, offset int) error {
-	action := "unmarshal"
-	if marshal {
-		action = "marshal"
-	}
-	return &MarshallerError{
-		errMsg: fmt.Sprintf("not enough bytes left to %s value of type '%s'", action, t),
-		offset: offset,
-	}
-}
-
-func VerifyMarshal(buf []byte, lastOffset int) error {
-	if len(buf) != lastOffset {
-		return &MarshallerError{
-			errMsg: "actual data size differs from expected",
-			offset: -1,
-		}
-	}
-	return nil
-}
-
-func VerifyUnmarshal(buf []byte, lastOffset int) error {
-	if len(buf) != lastOffset {
-		return &MarshallerError{
-			errMsg: "unmarshalled bytes left",
-		}
-	}
-	return nil
-}
-
-func SliceSize[T any](slice []T, sizeOf func(T) int) int {
-	if slice == nil {
-		return nilSliceSize
-	}
-	s := Int64Size(int64(len(slice)))
-	for _, v := range slice {
-		s += sizeOf(v)
-	}
-	return s
-}
-
-func SliceMarshal[T any](buf []byte, offset int, slice []T, marshalT func([]byte, int, T) (int, error)) (int, error) {
-	if slice == nil {
-		return Int64Marshal(buf, offset, nilSlice)
-	}
-	if len(slice) > maxSliceLen {
-		return 0, &MarshallerError{
-			errMsg: fmt.Sprintf("slice size if too big: '%d'", len(slice)),
-			offset: offset,
-		}
-	}
-	offset, err := Int64Marshal(buf, offset, int64(len(slice)))
-	if err != nil {
-		return 0, err
-	}
-	for _, v := range slice {
-		offset, err = marshalT(buf, offset, v)
-		if err != nil {
-			return 0, err
-		}
-	}
-	return offset, nil
-}
-
-func SliceUnmarshal[T any](buf []byte, offset int, unmarshalT func(buf []byte, offset int) (T, int, error)) ([]T, int, error) {
-	size, offset, err := Int64Unmarshal(buf, offset)
-	if err != nil {
-		return nil, 0, err
-	}
-	if size == nilSlice {
-		return nil, offset, nil
-	}
-	if size > maxSliceLen {
-		return nil, 0, &MarshallerError{
-			errMsg: fmt.Sprintf("slice size if too big: '%d'", size),
-			offset: offset,
-		}
-	}
-	if size < 0 {
-		return nil, 0, &MarshallerError{
-			errMsg: fmt.Sprintf("invalid slice size: '%d'", size),
-			offset: offset,
-		}
-	}
-	result := make([]T, size)
-	for idx := 0; idx < len(result); idx++ {
-		result[idx], offset, err = unmarshalT(buf, offset)
-		if err != nil {
-			return nil, 0, err
-		}
-	}
-	return result, offset, nil
-}
-
-func Int64Size(v int64) int {
-	// https://cs.opensource.google/go/go/+/master:src/encoding/binary/varint.go;l=92;drc=dac9b9ddbd5160c5f4552410f5f8281bd5eed38c
-	// and
-	// https://cs.opensource.google/go/go/+/master:src/encoding/binary/varint.go;l=41;drc=dac9b9ddbd5160c5f4552410f5f8281bd5eed38c
-	ux := uint64(v) << 1
-	if v < 0 {
-		ux = ^ux
-	}
-	s := 0
-	for ux >= 0x80 {
-		s++
-		ux >>= 7
-	}
-	return s + 1
-}
-
-func Int64Marshal(buf []byte, offset int, v int64) (int, error) {
-	if len(buf)-offset < Int64Size(v) {
-		return 0, errBufTooSmall("int64", true, offset)
-	}
-	return offset + binary.PutVarint(buf[offset:], v), nil
-}
-
-func Int64Unmarshal(buf []byte, offset int) (int64, int, error) {
-	v, read := binary.Varint(buf[offset:])
-	if read == 0 {
-		return 0, 0, errBufTooSmall("int64", false, offset)
-	}
-	if read < 0 {
-		return 0, 0, &MarshallerError{
-			errMsg: "int64 unmarshal overflow",
-			offset: offset,
-		}
-	}
-	return v, offset + read, nil
-}
-
-func StringSize(s string) int {
-	return Int64Size(int64(len(s))) + len(s)
-}
-
-func StringMarshal(buf []byte, offset int, s string) (int, error) {
-	if len(s) > maxSliceLen {
-		return 0, &MarshallerError{
-			errMsg: fmt.Sprintf("string is too long: '%d'", len(s)),
-			offset: offset,
-		}
-	}
-	if len(buf)-offset < Int64Size(int64(len(s)))+len(s) {
-		return 0, errBufTooSmall("string", true, offset)
-	}
-
-	offset, err := Int64Marshal(buf, offset, int64(len(s)))
-	if err != nil {
-		return 0, err
-	}
-	if s == "" {
-		return offset, nil
-	}
-	return offset + copy(buf[offset:], s), nil
-}
-
-func StringUnmarshal(buf []byte, offset int) (string, int, error) {
-	size, offset, err := Int64Unmarshal(buf, offset)
-	if err != nil {
-		return "", 0, err
-	}
-	if size == 0 {
-		return "", offset, nil
-	}
-	if size > maxSliceLen {
-		return "", 0, &MarshallerError{
-			errMsg: fmt.Sprintf("string is too long: '%d'", size),
-			offset: offset,
-		}
-	}
-	if size < 0 {
-		return "", 0, &MarshallerError{
-			errMsg: fmt.Sprintf("invalid string size: '%d'", size),
-			offset: offset,
-		}
-	}
-	if len(buf)-offset < int(size) {
-		return "", 0, errBufTooSmall("string", false, offset)
-	}
-	return string(buf[offset : offset+int(size)]), offset + int(size), nil
-}
-
-func UInt8Marshal(buf []byte, offset int, value uint8) (int, error) {
-	if len(buf)-offset < 1 {
-		return 0, errBufTooSmall("uint8", true, offset)
-	}
-	buf[offset] = value
-	return offset + 1, nil
-}
-
-func UInt8Unmarshal(buf []byte, offset int) (uint8, int, error) {
-	if len(buf)-offset < 1 {
-		return 0, 0, errBufTooSmall("uint8", false, offset)
-	}
-	return buf[offset], offset + 1, nil
-}
-
-func ByteMarshal(buf []byte, offset int, value byte) (int, error) {
-	return UInt8Marshal(buf, offset, value)
-}
-
-func ByteUnmarshal(buf []byte, offset int) (byte, int, error) {
-	return UInt8Unmarshal(buf, offset)
-}
-
-func BoolMarshal(buf []byte, offset int, value bool) (int, error) {
-	if value {
-		return UInt8Marshal(buf, offset, byteTrue)
-	}
-	return UInt8Marshal(buf, offset, byteFalse)
-}
-
-func BoolUnmarshal(buf []byte, offset int) (bool, int, error) {
-	v, offset, err := UInt8Unmarshal(buf, offset)
-	if err != nil {
-		return false, 0, err
-	}
-	if v == byteTrue {
-		return true, offset, nil
-	}
-	if v == byteFalse {
-		return false, offset, nil
-	}
-	return false, 0, &MarshallerError{
-		errMsg: fmt.Sprintf("invalid marshalled value for bool: %d", v),
-		offset: offset - BoolSize,
-	}
-}

pkg/marshal/marshal_test.go

@@ -1,313 +0,0 @@
-package marshal
-
-import (
-	"encoding/binary"
-	"math"
-	"testing"
-
-	"github.com/stretchr/testify/require"
-)
-
-func TestMarshalling(t *testing.T) {
-	t.Parallel()
-	t.Run("slice", func(t *testing.T) {
-		t.Parallel()
-		t.Run("nil slice", func(t *testing.T) {
-			t.Parallel()
-
-			var int64s []int64
-			expectedSize := SliceSize(int64s, Int64Size)
-			require.Equal(t, 1, expectedSize)
-			buf := make([]byte, expectedSize)
-			offset, err := SliceMarshal(buf, 0, int64s, Int64Marshal)
-			require.NoError(t, err)
-			require.NoError(t, VerifyMarshal(buf, offset))
-
-			result, offset, err := SliceUnmarshal(buf, 0, Int64Unmarshal)
-			require.NoError(t, err)
-			require.NoError(t, VerifyUnmarshal(buf, offset))
-			require.Nil(t, result)
-		})
-
-		t.Run("empty slice", func(t *testing.T) {
-			t.Parallel()
-
-			int64s := make([]int64, 0)
-			expectedSize := SliceSize(int64s, Int64Size)
-			require.Equal(t, 1, expectedSize)
-			buf := make([]byte, expectedSize)
-			offset, err := SliceMarshal(buf, 0, int64s, Int64Marshal)
-			require.NoError(t, err)
-			require.NoError(t, VerifyMarshal(buf, offset))
-
-			result, offset, err := SliceUnmarshal(buf, 0, Int64Unmarshal)
-			require.NoError(t, err)
-			require.NoError(t, VerifyUnmarshal(buf, offset))
-			require.NotNil(t, result)
-			require.Len(t, result, 0)
-		})
-
-		t.Run("non empty slice", func(t *testing.T) {
-			t.Parallel()
-
-			int64s := make([]int64, 100)
-			for i := range int64s {
-				int64s[i] = int64(i)
-			}
-			expectedSize := SliceSize(int64s, Int64Size)
-			buf := make([]byte, expectedSize)
-			offset, err := SliceMarshal(buf, 0, int64s, Int64Marshal)
-			require.NoError(t, err)
-			require.NoError(t, VerifyMarshal(buf, offset))
-
-			result, offset, err := SliceUnmarshal(buf, 0, Int64Unmarshal)
-			require.NoError(t, err)
-			require.NoError(t, VerifyUnmarshal(buf, offset))
-			require.Equal(t, int64s, result)
-		})
-
-		t.Run("corrupted slice size", func(t *testing.T) {
-			t.Parallel()
-
-			int64s := make([]int64, 100)
-			for i := range int64s {
-				int64s[i] = int64(i)
-			}
-			expectedSize := SliceSize(int64s, Int64Size)
-			buf := make([]byte, expectedSize)
-			offset, err := SliceMarshal(buf, 0, int64s, Int64Marshal)
-			require.NoError(t, err)
-			require.NoError(t, VerifyMarshal(buf, offset))
-
-			for i := 0; i < binary.MaxVarintLen64; i++ {
-				buf[i] = 129
-			}
-
-			_, _, err = SliceUnmarshal(buf, 0, Int64Unmarshal)
-			var mErr *MarshallerError
-			require.ErrorAs(t, err, &mErr)
-
-			for i := 0; i < binary.MaxVarintLen64; i++ {
-				buf[i] = 127
-			}
-			_, _, err = SliceUnmarshal(buf, 0, Int64Unmarshal)
-			require.ErrorAs(t, err, &mErr)
-		})
-
-		t.Run("corrupted slice item", func(t *testing.T) {
-			t.Parallel()
-
-			int64s := make([]int64, 100)
-			for i := range int64s {
-				int64s[i] = int64(i)
-			}
-			expectedSize := SliceSize(int64s, Int64Size)
-			buf := make([]byte, expectedSize)
-			offset, err := SliceMarshal(buf, 0, int64s, Int64Marshal)
-			require.NoError(t, err)
-			require.NoError(t, VerifyMarshal(buf, offset))
-
-			for i := 2; i < binary.MaxVarintLen64+2; i++ {
-				buf[i] = 129
-			}
-
-			_, _, err = SliceUnmarshal(buf, 0, Int64Unmarshal)
-			var mErr *MarshallerError
-			require.ErrorAs(t, err, &mErr)
-		})
-
-		t.Run("small buffer", func(t *testing.T) {
-			t.Parallel()
-
-			int64s := make([]int64, 100)
-			for i := range int64s {
-				int64s[i] = int64(i)
-			}
-			buf := make([]byte, 1)
-			_, err := SliceMarshal(buf, 0, int64s, Int64Marshal)
-			var mErr *MarshallerError
-			require.ErrorAs(t, err, &mErr)
-
-			buf = make([]byte, 10)
-			_, err = SliceMarshal(buf, 0, int64s, Int64Marshal)
-			require.ErrorAs(t, err, &mErr)
-		})
-	})
-
-	t.Run("int64", func(t *testing.T) {
-		t.Parallel()
-
-		t.Run("success", func(t *testing.T) {
-			t.Parallel()
-
-			require.Equal(t, 1, Int64Size(0))
-			require.Equal(t, binary.MaxVarintLen64, Int64Size(math.MaxInt64))
-			require.Equal(t, binary.MaxVarintLen64, Int64Size(math.MinInt64))
-
-			for _, v := range []int64{0, math.MinInt64, math.MaxInt64} {
-				size := Int64Size(v)
-				buf := make([]byte, size)
-				offset, err := Int64Marshal(buf, 0, v)
-				require.NoError(t, err)
-				require.NoError(t, VerifyMarshal(buf, offset))
-
-				uv, offset, err := Int64Unmarshal(buf, 0)
-				require.NoError(t, err)
-				require.NoError(t, VerifyUnmarshal(buf, offset))
-				require.Equal(t, v, uv)
-			}
-		})
-
-		t.Run("invalid buffer", func(t *testing.T) {
-			t.Parallel()
-
-			var mErr *MarshallerError
-
-			_, err := Int64Marshal([]byte{}, 0, 100500)
-			require.ErrorAs(t, err, &mErr)
-
-			_, _, err = Int64Unmarshal(nil, 0)
-			require.ErrorAs(t, err, &mErr)
-		})
-
-		t.Run("overflow", func(t *testing.T) {
-			t.Parallel()
-
-			var mErr *MarshallerError
-
-			var v int64 = math.MaxInt64
-			buf := make([]byte, Int64Size(v))
-			_, err := Int64Marshal(buf, 0, v)
-			require.NoError(t, err)
-
-			buf[9] = 2
-
-			_, _, err = Int64Unmarshal(buf, 0)
-			require.ErrorAs(t, err, &mErr)
-		})
-	})
-
-	t.Run("string", func(t *testing.T) {
-		t.Parallel()
-
-		t.Run("success", func(t *testing.T) {
-			t.Parallel()
-			for _, v := range []string{
-				"", "arn:aws:iam::namespace:group/some_group", "$Object:homomorphicHash",
-				"native:container/ns/9LPLUFZpEmfidG4n44vi2cjXKXSqWT492tCvLJiJ8W1J",
-			} {
-				size := StringSize(v)
-				buf := make([]byte, size)
-				offset, err := StringMarshal(buf, 0, v)
-				require.NoError(t, err)
-				require.NoError(t, VerifyMarshal(buf, offset))
-
-				uv, offset, err := StringUnmarshal(buf, 0)
-				require.NoError(t, err)
-				require.NoError(t, VerifyUnmarshal(buf, offset))
-				require.Equal(t, v, uv)
-			}
-		})
-
-		t.Run("invalid buffer", func(t *testing.T) {
-			t.Parallel()
-
-			str := "avada kedavra"
-
-			var mErr *MarshallerError
-			_, err := StringMarshal(nil, 0, str)
-			require.ErrorAs(t, err, &mErr)
-
-			_, _, err = StringUnmarshal(nil, 0)
-			require.ErrorAs(t, err, &mErr)
-
-			buf := make([]byte, StringSize(str))
-			offset, err := StringMarshal(buf, 0, str)
-			require.NoError(t, err)
-			require.NoError(t, VerifyMarshal(buf, offset))
-			buf = buf[:len(buf)-1]
-			_, _, err = StringUnmarshal(buf, 0)
-			require.ErrorAs(t, err, &mErr)
-		})
-	})
-
-	t.Run("uint8, byte", func(t *testing.T) {
-		t.Parallel()
-
-		for _, v := range []byte{0, 8, 16, 32, 64, 128, 255} {
-			buf := make([]byte, ByteSize)
-			offset, err := ByteMarshal(buf, 0, v)
-			require.NoError(t, err)
-			require.NoError(t, VerifyMarshal(buf, offset))
-
-			ub, offset, err := ByteUnmarshal(buf, 0)
-			require.NoError(t, err)
-			require.NoError(t, VerifyUnmarshal(buf, offset))
-			require.Equal(t, v, ub)
-
-			buf = make([]byte, UInt8Size)
-			offset, err = UInt8Marshal(buf, 0, v)
-			require.NoError(t, err)
-			require.NoError(t, VerifyMarshal(buf, offset))
-
-			uu, offset, err := UInt8Unmarshal(buf, 0)
-			require.NoError(t, err)
-			require.NoError(t, VerifyUnmarshal(buf, offset))
-			require.Equal(t, v, uu)
-		}
-	})
-
-	t.Run("bool", func(t *testing.T) {
-		t.Parallel()
-
-		t.Run("success", func(t *testing.T) {
-			t.Parallel()
-			for _, v := range []bool{false, true} {
-				buf := make([]byte, BoolSize)
-				offset, err := BoolMarshal(buf, 0, v)
-				require.NoError(t, err)
-				require.NoError(t, VerifyMarshal(buf, offset))
-
-				ub, offset, err := BoolUnmarshal(buf, 0)
-				require.NoError(t, err)
-				require.NoError(t, VerifyUnmarshal(buf, offset))
-				require.Equal(t, v, ub)
-			}
-		})
-
-		t.Run("invalid value", func(t *testing.T) {
-			t.Parallel()
-			buf := make([]byte, BoolSize)
-			offset, err := BoolMarshal(buf, 0, true)
-			require.NoError(t, err)
-			require.NoError(t, VerifyMarshal(buf, offset))
-
-			buf[0] = 2
-
-			_, _, err = BoolUnmarshal(buf, 0)
-			var mErr *MarshallerError
-			require.ErrorAs(t, err, &mErr)
-		})
-
-		t.Run("invalid buffer", func(t *testing.T) {
-			t.Parallel()
-			var mErr *MarshallerError
-
-			_, err := BoolMarshal(nil, 0, true)
-			require.ErrorAs(t, err, &mErr)
-
-			buf := append(make([]byte, BoolSize), 100)
-			offset, err := BoolMarshal(buf, 0, true)
-			require.NoError(t, err)
-			require.ErrorAs(t, VerifyMarshal(buf, offset), &mErr)
-
-			v, offset, err := BoolUnmarshal(buf, 0)
-			require.NoError(t, err)
-			require.True(t, v)
-			require.ErrorAs(t, VerifyUnmarshal(buf, offset), &mErr)
-
-			_, _, err = BoolUnmarshal(nil, 0)
-			require.ErrorAs(t, err, &mErr)
-		})
-	})
-}

pkg/morph/policy/policy_contract_storage.go

@@ -1,184 +0,0 @@
-package policy
-
-import (
-	"errors"
-	"fmt"
-	"math/big"
-	"strings"
-
-	"git.frostfs.info/TrueCloudLab/frostfs-contract/policy"
-	client "git.frostfs.info/TrueCloudLab/frostfs-contract/rpcclient/policy"
-	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/chain"
-	"git.frostfs.info/TrueCloudLab/policy-engine/pkg/engine"
-	"github.com/nspcc-dev/neo-go/pkg/rpcclient/actor"
-	"github.com/nspcc-dev/neo-go/pkg/util"
-	"github.com/nspcc-dev/neo-go/pkg/vm/stackitem"
-	"github.com/nspcc-dev/neo-go/pkg/wallet"
-)
-
-var (
-	ErrEmptyChainID = errors.New("chain id is not set")
-
-	ErrEngineTargetTypeUnsupported = errors.New("this target type is not supported yet")
-)
-
-// ContractStorage is the interface to manage chain rules within Policy contract.
-type ContractStorage struct {
-	contractInterface *client.Contract
-}
-
-var _ engine.MorphRuleChainStorage = (*ContractStorage)(nil)
-
-// ContractStorageReader is the interface to read data from Policy contract.
-type ContractStorageReader struct {
-	contractReaderInterface *client.ContractReader
-}
-
-var _ engine.MorphRuleChainStorageReader = (*ContractStorageReader)(nil)
-
-func NewContractStorage(actor client.Actor, contract util.Uint160) *ContractStorage {
-	return &ContractStorage{
-		contractInterface: client.New(actor, contract),
-	}
-}
-
-func NewContractStorageWithSimpleActor(rpcActor actor.RPCActor, acc *wallet.Account, contract util.Uint160) (*ContractStorage, error) {
-	act, err := actor.NewSimple(rpcActor, acc)
-	if err != nil {
-		return nil, fmt.Errorf("failed to create simple actor: %w", err)
-	}
-	return NewContractStorage(act, contract), nil
-}
-
-func (s *ContractStorage) AddMorphRuleChain(name chain.Name, target engine.Target, c *chain.Chain) (txHash util.Uint256, vub uint32, err error) {
-	if len(c.ID) == 0 {
-		err = ErrEmptyChainID
-		return
-	}
-
-	var kind policy.Kind
-	kind, err = policyKind(target.Type)
-	if err != nil {
-		return
-	}
-	fullName := prefixedChainName(name, c.ID)
-
-	txHash, vub, err = s.contractInterface.AddChain(big.NewInt(int64(kind)), target.Name, fullName, c.Bytes())
-	return
-}
-
-func (s *ContractStorage) RemoveMorphRuleChain(name chain.Name, target engine.Target, chainID chain.ID) (txHash util.Uint256, vub uint32, err error) {
-	if len(chainID) == 0 {
-		err = ErrEmptyChainID
-		return
-	}
-
-	var kind policy.Kind
-	kind, err = policyKind(target.Type)
-	if err != nil {
-		return
-	}
-	fullName := prefixedChainName(name, chainID)
-
-	txHash, vub, err = s.contractInterface.RemoveChain(big.NewInt(int64(kind)), target.Name, fullName)
-	return
-}
-
-func (s *ContractStorage) ListMorphRuleChains(name chain.Name, target engine.Target) ([]*chain.Chain, error) {
-	kind, err := policyKind(target.Type)
-	if err != nil {
-		return nil, err
-	}
-
-	items, err := s.contractInterface.ListChainsByPrefix(big.NewInt(int64(kind)), target.Name, []byte(name))
-	if err != nil {
-		return nil, err
-	}
-
-	var chains []*chain.Chain
-	for _, item := range items {
-		serialized, err := bytesFromStackItem(item)
-		if err != nil {
-			return nil, err
-		}
-		c := new(chain.Chain)
-		if err := c.DecodeBytes(serialized); err != nil {
-			return nil, err
-		}
-		chains = append(chains, c)
-	}
-
-	return chains, nil
-}
-
-func (s *ContractStorage) GetAdmin() (util.Uint160, error) {
-	return s.contractInterface.GetAdmin()
-}
-
-func (s *ContractStorage) SetAdmin(addr util.Uint160) (util.Uint256, uint32, error) {
-	return s.contractInterface.SetAdmin(addr)
-}
-
-func NewContractStorageReader(inv client.Invoker, contract util.Uint160) *ContractStorageReader {
-	return &ContractStorageReader{
-		contractReaderInterface: client.NewReader(inv, contract),
-	}
-}
-
-func (s *ContractStorageReader) ListMorphRuleChains(name chain.Name, target engine.Target) ([]*chain.Chain, error) {
-	kind, err := policyKind(target.Type)
-	if err != nil {
-		return nil, err
-	}
-
-	items, err := s.contractReaderInterface.ListChainsByPrefix(big.NewInt(int64(kind)), target.Name, []byte(name))
-	if err != nil {
-		return nil, err
-	}
-
-	var chains []*chain.Chain
-	for _, item := range items {
-		serialized, err := bytesFromStackItem(item)
-		if err != nil {
-			return nil, err
-		}
-		c := new(chain.Chain)
-		if err := c.DecodeBytes(serialized); err != nil {
-			return nil, err
-		}
-		chains = append(chains, c)
-	}
-
-	return chains, nil
-}
-
-func (s *ContractStorageReader) GetAdmin() (util.Uint160, error) {
-	return s.contractReaderInterface.GetAdmin()
-}
-
-func bytesFromStackItem(param stackitem.Item) ([]byte, error) {
-	switch param.Type() {
-	case stackitem.BufferT, stackitem.ByteArrayT, stackitem.IntegerT:
-		return param.TryBytes()
-	case stackitem.AnyT:
-		if param.Value() == nil {
-			return nil, nil
-		}
-		fallthrough
-	default:
-		return nil, fmt.Errorf("chain/client: %s is not a byte array type", param.Type())
-	}
-}
-
-func prefixedChainName(name chain.Name, chainID chain.ID) []byte {
-	return []byte(strings.ToLower(fmt.Sprintf("%s:%s", name, chainID)))
-}
-
-func policyKind(typ engine.TargetType) (policy.Kind, error) {
-	if typ == engine.Namespace {
-		return policy.Namespace, nil
-	} else if typ == engine.Container {
-		return policy.Container, nil
-	}
-	return policy.Kind(0), ErrEngineTargetTypeUnsupported
-}

pkg/resource/testutil/resource.go

@@ -1,53 +0,0 @@
-package testutil
-
-import (
-	resourcepkg "git.frostfs.info/TrueCloudLab/policy-engine/pkg/resource"
-)
-
-type Resource struct {
-	name       string
-	properties map[string]string
-}
-
-func (r *Resource) Name() string {
-	return r.name
-}
-
-func (r *Resource) Property(name string) string {
-	return r.properties[name]
-}
-
-func NewResource(name string, properties map[string]string) *Resource {
-	if properties == nil {
-		properties = make(map[string]string)
-	}
-	return &Resource{name: name, properties: properties}
-}
-
-type Request struct {
-	operation  string
-	properties map[string]string
-	resource   *Resource
-}
-
-var _ resourcepkg.Request = (*Request)(nil)
-
-func (r *Request) Operation() string {
-	return r.operation
-}
-
-func (r *Request) Resource() resourcepkg.Resource {
-	return r.resource
-}
-
-func (r *Request) Property(name string) string {
-	return r.properties[name]
-}
-
-func NewRequest(op string, r *Resource, properties map[string]string) *Request {
-	return &Request{
-		operation:  op,
-		properties: properties,
-		resource:   r,
-	}
-}

policy.go

@@ -0,0 +1,30 @@
+package policyengine
+
+//{
+//	"Version": "xyz",
+//	"Policy": [
+//	  {
+//		"Effect": "Allow",
+//		"Action": [
+//		  "native:*",
+//		  "s3:PutObject",
+//		  "s3:GetObject"
+//		],
+//		"Resource": ["*"],
+//		"Principal": ["did:frostfs:039e3ee771a223361fe7862f532e9511b57baaae3c3e2622682e99d0e660f7671"],
+//		"Condition": [ {"StringEquals": {"native::object::attribute", "iamuser-admin"}]
+//	  }
+//	]
+//}
+
+// type Policy struct {
+// 	Rules []Rule `json:"Policy"`
+// }
+
+// type AWSRule struct {
+// 	Effect    string      `json:"Effect"`
+// 	Action    []string    `json:"Action"`
+// 	Resource  []string    `json:"Resource"`
+// 	Principal []string    `json:"Principal"`
+// 	Condition []Condition `json:"Condition"`
+// }

resource.go

@@ -1,4 +1,4 @@
-package resource
+package policyengine
 
 // Request represents generic named resource (bucket, container etc.).
 // Name is resource depenent but should be globally unique for any given

resource_test.go

@@ -0,0 +1,49 @@
+package policyengine
+
+type resource struct {
+	name       string
+	properties map[string]string
+}
+
+func (r *resource) Name() string {
+	return r.name
+}
+
+func (r *resource) Property(name string) string {
+	return r.properties[name]
+}
+
+func newResource(name string, properties map[string]string) *resource {
+	if properties == nil {
+		properties = make(map[string]string)
+	}
+	return &resource{name: name, properties: properties}
+}
+
+type request struct {
+	operation  string
+	properties map[string]string
+	resource   *resource
+}
+
+var _ Request = (*request)(nil)
+
+func (r *request) Operation() string {
+	return r.operation
+}
+
+func (r *request) Resource() Resource {
+	return r.resource
+}
+
+func (r *request) Property(name string) string {
+	return r.properties[name]
+}
+
+func newRequest(op string, r *resource, properties map[string]string) *request {
+	return &request{
+		operation:  op,
+		properties: properties,
+		resource:   r,
+	}
+}

schema/common/consts.go

@@ -1,5 +0,0 @@
-package common
-
-const (
-	PropertyKeyFrostFSIDGroupID = "frostfsid:groupID"
-)

schema/native/consts.go

@@ -1,59 +0,0 @@
-package native
-
-const (
-	MethodGetObject    = "GetObject"
-	MethodPutObject    = "PutObject"
-	MethodHeadObject   = "HeadObject"
-	MethodDeleteObject = "DeleteObject"
-	MethodSearchObject = "SearchObject"
-	MethodRangeObject  = "RangeObject"
-	MethodHashObject   = "HashObject"
-
-	MethodPutContainer     = "PutContainer"
-	MethodDeleteContainer  = "DeleteContainer"
-	MethodGetContainer     = "GetContainer"
-	MethodListContainers   = "ListContainers"
-	MethodSetContainerEACL = "SetContainerEACL"
-	MethodGetContainerEACL = "GetContainerEACL"
-
-	ObjectPrefix    = "native:object"
-	ContainerPrefix = "native:container"
-
-	ResourceFormatNamespaceObjects          = "native:object/%s/*"
-	ResourceFormatNamespaceContainerObjects = "native:object/%s/%s/*"
-	ResourceFormatNamespaceContainerObject  = "native:object/%s/%s/%s"
-
-	ResourceFormatRootObjects          = "native:object//*"
-	ResourceFormatRootContainerObjects = "native:object//%s/*"
-	ResourceFormatRootContainerObject  = "native:object//%s/%s"
-
-	ResourceFormatAllObjects = "native:object/*"
-
-	ResourceFormatNamespaceContainer  = "native:container/%s/%s"
-	ResourceFormatNamespaceContainers = "native:container/%s/*"
-
-	ResourceFormatRootContainer  = "native:container//%s"
-	ResourceFormatRootContainers = "native:container//*"
-
-	ResourceFormatAllContainers = "native:container/*"
-
-	PropertyKeyActorPublicKey = "$Actor:publicKey"
-	PropertyKeyActorRole      = "$Actor:role"
-
-	PropertyKeyObjectVersion         = "$Object:version"
-	PropertyKeyObjectID              = "$Object:objectID"
-	PropertyKeyObjectContainerID     = "$Object:containerID"
-	PropertyKeyObjectOwnerID         = "$Object:ownerID"
-	PropertyKeyObjectCreationEpoch   = "$Object:creationEpoch"
-	PropertyKeyObjectPayloadLength   = "$Object:payloadLength"
-	PropertyKeyObjectPayloadHash     = "$Object:payloadHash"
-	PropertyKeyObjectType            = "$Object:objectType"
-	PropertyKeyObjectHomomorphicHash = "$Object:homomorphicHash"
-
-	PropertyKeyContainerOwnerID = "$Container:ownerID"
-
-	PropertyValueContainerRoleOwner     = "owner"
-	PropertyValueContainerRoleIR        = "ir"
-	PropertyValueContainerRoleContainer = "container"
-	PropertyValueContainerRoleOthers    = "others"
-)

schema/native/util/validation.go

@@ -1,45 +0,0 @@
-package util
-
-import (
-	"strings"
-
-	"git.frostfs.info/TrueCloudLab/policy-engine/schema/native"
-)
-
-var nativePatterns = []string{
-	native.ResourceFormatNamespaceObjects, native.ResourceFormatNamespaceContainerObjects,
-	native.ResourceFormatNamespaceContainerObject, native.ResourceFormatRootObjects,
-	native.ResourceFormatRootContainerObjects, native.ResourceFormatRootContainerObject,
-	native.ResourceFormatAllObjects, native.ResourceFormatNamespaceContainer,
-	native.ResourceFormatNamespaceContainers, native.ResourceFormatRootContainer,
-	native.ResourceFormatRootContainers, native.ResourceFormatAllContainers,
-}
-
-func match(resource, pattern string) bool {
-	rTokens := strings.Split(resource, "/")
-	pToken := strings.Split(pattern, "/")
-
-	if len(rTokens) != len(pToken) {
-		return false
-	}
-
-	for i := range rTokens {
-		if pToken[i] == "%s" {
-			continue
-		}
-		if pToken[i] != rTokens[i] {
-			return false
-		}
-	}
-
-	return true
-}
-
-func IsNativeResourceNameValid(resource string) bool {
-	for _, pattern := range nativePatterns {
-		if match(resource, pattern) {
-			return true
-		}
-	}
-	return false
-}

schema/native/util/validation_test.go

@@ -1,97 +0,0 @@
-package util
-
-import (
-	"testing"
-
-	"github.com/stretchr/testify/require"
-)
-
-var tests = []struct {
-	name     string
-	expected bool
-	resource string
-}{
-	{
-		name:     "ResourceFormatNamespaceObjects",
-		expected: true,
-		resource: "native:object/RootNamespace/*",
-	},
-	{
-		name:     "ResourceFormatNamespaceContainerObjects",
-		expected: true,
-		resource: "native:object/RootNamespace/BzQw5HH3feoxFDD5tCT87Y1726qzgLfxEE7wgtoRzB3R/*",
-	},
-	{
-		name:     "ResourceFormatNamespaceContainerObject",
-		expected: true,
-		resource: "native:object/RootNamespace/BzQw5HH3feoxFDD5tCT87Y1726qzgLfxEE7wgtoRzB3R/AeZa5HH3feoxFDD5tCT87Y1726qzgLfxEE7wgtoRzB4E",
-	},
-	{
-		name:     "ResourceFormatRootObjects",
-		expected: true,
-		resource: "native:object//*",
-	},
-	{
-		name:     "ResourceFormatRootContainerObjects",
-		expected: true,
-		resource: "native:object//BzQw5HH3feoxFDD5tCT87Y1726qzgLfxEE7wgtoRzB3R/*",
-	},
-	{
-		name:     "ResourceFormatRootContainerObject",
-		expected: true,
-		resource: "native:object//BzQw5HH3feoxFDD5tCT87Y1726qzgLfxEE7wgtoRzB3R/AeZa5HH3feoxFDD5tCT87Y1726qzgLfxEE7wgtoRzB4E",
-	},
-	{
-		name:     "ResourceFormatAllObjects",
-		expected: true,
-		resource: "native:object/*",
-	},
-	{
-		name:     "ResourceFormatNamespaceContainer",
-		expected: true,
-		resource: "native:container/RootNamespace/BzQw5HH3feoxFDD5tCT87Y1726qzgLfxEE7wgtoRzB3R",
-	},
-	{
-		name:     "ResourceFormatNamespaceContainers",
-		expected: true,
-		resource: "native:container/RootNamespace/*",
-	},
-	{
-		name:     "ResourceFormatRootContainers",
-		expected: true,
-		resource: "native:container//*",
-	},
-	{
-		name:     "ResourceFormatAllContainers",
-		expected: true,
-		resource: "native:container/*",
-	},
-	{
-		name:     "Invalid resource 1",
-		expected: false,
-		resource: "native:::container/*",
-	},
-	{
-		name:     "Invalid resource 2",
-		expected: false,
-		resource: "native:container/RootNamespace/w5HH3feoxFDD5tCTtoRzB3R/Bz726qzgLfxEE7wgtoRzB3R/RootNamespace",
-	},
-}
-
-func TestIsNativeResourceNameValid(t *testing.T) {
-	for _, test := range tests {
-		t.Run(test.name, func(t *testing.T) {
-			require.Equal(t, test.expected, IsNativeResourceNameValid(test.resource))
-		})
-	}
-}
-
-func BenchmarkIsNativeResourceNameValid(b *testing.B) {
-	for _, test := range tests {
-		b.Run(test.name, func(b *testing.B) {
-			for i := 0; i < b.N; i++ {
-				_ = IsNativeResourceNameValid(test.resource)
-			}
-		})
-	}
-}

schema/s3/consts.go

@@ -1,17 +0,0 @@
-package s3
-
-const (
-	PropertyKeyOwner = "Owner"
-
-	PropertyKeyDelimiter = "s3:delimiter"
-	PropertyKeyPrefix    = "s3:prefix"
-	PropertyKeyVersionID = "s3:VersionId"
-
-	ResourceFormatS3All           = "arn:aws:s3:::*"
-	ResourceFormatS3Bucket        = "arn:aws:s3:::%s"
-	ResourceFormatS3BucketObjects = "arn:aws:s3:::%s/*"
-	ResourceFormatS3BucketObject  = "arn:aws:s3:::%s/%s"
-
-	ResourceFormatIAMNamespaceUser  = "arn:aws:iam::%s:user/%s"
-	ResourceFormatIAMNamespaceGroup = "arn:aws:iam::%s:group/%s"
-)