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minio/pkg/iam/policy/policy_test.go

917 lines
22 KiB

/*
* MinIO Cloud Storage, (C) 2018 MinIO, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package iampolicy
import (
"encoding/json"
"net"
"reflect"
"testing"
"github.com/minio/minio-go/v7/pkg/set"
"github.com/minio/minio/pkg/bucket/policy"
"github.com/minio/minio/pkg/bucket/policy/condition"
)
func TestGetPoliciesFromClaims(t *testing.T) {
attributesArray := `{
"exp": 1594690452,
"iat": 1594689552,
"auth_time": 1594689552,
"jti": "18ed05c9-2c69-45d5-a33f-8c94aca99ad5",
"iss": "http://localhost:8080/auth/realms/minio",
"aud": "account",
"sub": "7e5e2f30-1c97-4616-8623-2eae14dee9b1",
"typ": "ID",
"azp": "account",
"nonce": "66ZoLzwJbjdkiedI",
"session_state": "3df7b526-5310-4038-9f35-50ecd295a31d",
"acr": "1",
"upn": "harsha",
"address": {},
"email_verified": false,
"groups": [
"offline_access"
],
"preferred_username": "harsha",
"policy": [
"readwrite",
"readwrite,readonly",
" readonly",
""
]}`
var m = make(map[string]interface{})
if err := json.Unmarshal([]byte(attributesArray), &m); err != nil {
t.Fatal(err)
}
var expectedSet = set.CreateStringSet("readwrite", "readonly")
gotSet, ok := GetPoliciesFromClaims(m, "policy")
if !ok {
t.Fatal("no policy claim was found")
}
if gotSet.IsEmpty() {
t.Fatal("no policies were found in policy claim")
}
if !gotSet.Equals(expectedSet) {
t.Fatalf("Expected %v got %v", expectedSet, gotSet)
}
}
func TestPolicyIsAllowed(t *testing.T) {
case1Policy := Policy{
Version: DefaultVersion,
Statements: []Statement{
NewStatement(
policy.Allow,
NewActionSet(GetBucketLocationAction, PutObjectAction),
NewResourceSet(NewResource("*", "")),
condition.NewFunctions(),
)},
}
case2Policy := Policy{
Version: DefaultVersion,
Statements: []Statement{
NewStatement(
policy.Allow,
NewActionSet(GetObjectAction, PutObjectAction),
NewResourceSet(NewResource("mybucket", "/myobject*")),
condition.NewFunctions(),
)},
}
_, IPNet, err := net.ParseCIDR("192.168.1.0/24")
if err != nil {
t.Fatalf("unexpected error. %v\n", err)
}
func1, err := condition.NewIPAddressFunc(
condition.AWSSourceIP,
IPNet,
)
if err != nil {
t.Fatalf("unexpected error. %v\n", err)
}
case3Policy := Policy{
Version: DefaultVersion,
Statements: []Statement{
NewStatement(
policy.Allow,
NewActionSet(GetObjectAction, PutObjectAction),
NewResourceSet(NewResource("mybucket", "/myobject*")),
condition.NewFunctions(func1),
)},
}
case4Policy := Policy{
Version: DefaultVersion,
Statements: []Statement{
NewStatement(
policy.Deny,
NewActionSet(GetObjectAction, PutObjectAction),
NewResourceSet(NewResource("mybucket", "/myobject*")),
condition.NewFunctions(func1),
)},
}
anonGetBucketLocationArgs := Args{
AccountName: "Q3AM3UQ867SPQQA43P2F",
Action: GetBucketLocationAction,
BucketName: "mybucket",
ConditionValues: map[string][]string{},
}
anonPutObjectActionArgs := Args{
AccountName: "Q3AM3UQ867SPQQA43P2F",
Action: PutObjectAction,
BucketName: "mybucket",
ConditionValues: map[string][]string{
"x-amz-copy-source": {"mybucket/myobject"},
"SourceIp": {"192.168.1.10"},
},
ObjectName: "myobject",
}
anonGetObjectActionArgs := Args{
AccountName: "Q3AM3UQ867SPQQA43P2F",
Action: GetObjectAction,
BucketName: "mybucket",
ConditionValues: map[string][]string{},
ObjectName: "myobject",
}
getBucketLocationArgs := Args{
AccountName: "Q3AM3UQ867SPQQA43P2F",
Action: GetBucketLocationAction,
BucketName: "mybucket",
ConditionValues: map[string][]string{},
}
putObjectActionArgs := Args{
AccountName: "Q3AM3UQ867SPQQA43P2F",
Action: PutObjectAction,
BucketName: "mybucket",
ConditionValues: map[string][]string{
"x-amz-copy-source": {"mybucket/myobject"},
"SourceIp": {"192.168.1.10"},
},
ObjectName: "myobject",
}
getObjectActionArgs := Args{
AccountName: "Q3AM3UQ867SPQQA43P2F",
Action: GetObjectAction,
BucketName: "mybucket",
ConditionValues: map[string][]string{},
ObjectName: "myobject",
}
testCases := []struct {
policy Policy
args Args
expectedResult bool
}{
{case1Policy, anonGetBucketLocationArgs, true},
{case1Policy, anonPutObjectActionArgs, true},
{case1Policy, anonGetObjectActionArgs, false},
{case1Policy, getBucketLocationArgs, true},
{case1Policy, putObjectActionArgs, true},
{case1Policy, getObjectActionArgs, false},
{case2Policy, anonGetBucketLocationArgs, false},
{case2Policy, anonPutObjectActionArgs, true},
{case2Policy, anonGetObjectActionArgs, true},
{case2Policy, getBucketLocationArgs, false},
{case2Policy, putObjectActionArgs, true},
{case2Policy, getObjectActionArgs, true},
{case3Policy, anonGetBucketLocationArgs, false},
{case3Policy, anonPutObjectActionArgs, true},
{case3Policy, anonGetObjectActionArgs, false},
{case3Policy, getBucketLocationArgs, false},
{case3Policy, putObjectActionArgs, true},
{case3Policy, getObjectActionArgs, false},
{case4Policy, anonGetBucketLocationArgs, false},
{case4Policy, anonPutObjectActionArgs, false},
{case4Policy, anonGetObjectActionArgs, false},
{case4Policy, getBucketLocationArgs, false},
{case4Policy, putObjectActionArgs, false},
{case4Policy, getObjectActionArgs, false},
}
for i, testCase := range testCases {
result := testCase.policy.IsAllowed(testCase.args)
if result != testCase.expectedResult {
t.Errorf("case %v: expected: %v, got: %v\n", i+1, testCase.expectedResult, result)
}
}
}
func TestPolicyIsEmpty(t *testing.T) {
case1Policy := Policy{
Version: DefaultVersion,
Statements: []Statement{
NewStatement(
policy.Allow,
NewActionSet(PutObjectAction),
NewResourceSet(NewResource("mybucket", "/myobject*")),
condition.NewFunctions(),
),
},
}
case2Policy := Policy{
ID: "MyPolicyForMyBucket",
Version: DefaultVersion,
}
testCases := []struct {
policy Policy
expectedResult bool
}{
{case1Policy, false},
{case2Policy, true},
}
for i, testCase := range testCases {
result := testCase.policy.IsEmpty()
if result != testCase.expectedResult {
t.Fatalf("case %v: expected: %v, got: %v\n", i+1, testCase.expectedResult, result)
}
}
}
func TestPolicyIsValid(t *testing.T) {
case1Policy := Policy{
Version: DefaultVersion,
Statements: []Statement{
NewStatement(
policy.Allow,
NewActionSet(PutObjectAction),
NewResourceSet(NewResource("mybucket", "/myobject*")),
condition.NewFunctions(),
),
},
}
case2Policy := Policy{
Version: DefaultVersion,
Statements: []Statement{
NewStatement(
policy.Allow,
NewActionSet(PutObjectAction),
NewResourceSet(NewResource("mybucket", "/myobject*")),
condition.NewFunctions(),
),
NewStatement(
policy.Deny,
NewActionSet(GetObjectAction),
NewResourceSet(NewResource("mybucket", "/myobject*")),
condition.NewFunctions(),
),
},
}
case3Policy := Policy{
Version: DefaultVersion,
Statements: []Statement{
NewStatement(
policy.Allow,
NewActionSet(PutObjectAction),
NewResourceSet(NewResource("mybucket", "/myobject*")),
condition.NewFunctions(),
),
NewStatement(
policy.Deny,
NewActionSet(PutObjectAction),
NewResourceSet(NewResource("mybucket", "/yourobject*")),
condition.NewFunctions(),
),
},
}
func1, err := condition.NewNullFunc(
condition.S3XAmzCopySource,
true,
)
if err != nil {
t.Fatalf("unexpected error. %v\n", err)
}
func2, err := condition.NewNullFunc(
condition.S3XAmzServerSideEncryption,
false,
)
if err != nil {
t.Fatalf("unexpected error. %v\n", err)
}
case4Policy := Policy{
Version: DefaultVersion,
Statements: []Statement{
NewStatement(
policy.Allow,
NewActionSet(PutObjectAction),
NewResourceSet(NewResource("mybucket", "/myobject*")),
condition.NewFunctions(func1),
),
NewStatement(
policy.Deny,
NewActionSet(PutObjectAction),
NewResourceSet(NewResource("mybucket", "/myobject*")),
condition.NewFunctions(func2),
),
},
}
case5Policy := Policy{
Version: "17-10-2012",
Statements: []Statement{
NewStatement(
policy.Allow,
NewActionSet(PutObjectAction),
NewResourceSet(NewResource("mybucket", "/myobject*")),
condition.NewFunctions(),
),
},
}
case6Policy := Policy{
ID: "MyPolicyForMyBucket1",
Version: DefaultVersion,
Statements: []Statement{
NewStatement(
policy.Allow,
NewActionSet(GetObjectAction, PutObjectAction),
NewResourceSet(NewResource("mybucket", "myobject*")),
condition.NewFunctions(func1, func2),
),
},
}
case7Policy := Policy{
Version: DefaultVersion,
Statements: []Statement{
NewStatement(
policy.Allow,
NewActionSet(PutObjectAction),
NewResourceSet(NewResource("mybucket", "/myobject*")),
condition.NewFunctions(),
),
NewStatement(
policy.Deny,
NewActionSet(PutObjectAction),
NewResourceSet(NewResource("mybucket", "/myobject*")),
condition.NewFunctions(),
),
},
}
case8Policy := Policy{
Version: DefaultVersion,
Statements: []Statement{
NewStatement(
policy.Allow,
NewActionSet(PutObjectAction),
NewResourceSet(NewResource("mybucket", "/myobject*")),
condition.NewFunctions(),
),
NewStatement(
policy.Allow,
NewActionSet(PutObjectAction),
NewResourceSet(NewResource("mybucket", "/myobject*")),
condition.NewFunctions(),
),
},
}
testCases := []struct {
policy Policy
expectErr bool
}{
{case1Policy, false},
// allowed duplicate principal.
{case2Policy, false},
// allowed duplicate principal and action.
{case3Policy, false},
// allowed duplicate principal, action and resource.
{case4Policy, false},
// Invalid version error.
{case5Policy, true},
// Invalid statement error.
{case6Policy, true},
// Duplicate statement different Effects.
{case7Policy, false},
// Duplicate statement same Effects, duplicate effect will be removed.
{case8Policy, false},
}
for i, testCase := range testCases {
err := testCase.policy.isValid()
expectErr := (err != nil)
if expectErr != testCase.expectErr {
t.Fatalf("case %v: error: expected: %v, got: %v", i+1, testCase.expectErr, expectErr)
}
}
}
func TestPolicyUnmarshalJSONAndValidate(t *testing.T) {
case1Data := []byte(`{
"ID": "MyPolicyForMyBucket1",
"Version": "2012-10-17",
"Statement": [
{
"Sid": "SomeId1",
"Effect": "Allow",
"Action": "s3:PutObject",
"Resource": "arn:aws:s3:::mybucket/myobject*"
}
]
}`)
case1Policy := Policy{
ID: "MyPolicyForMyBucket1",
Version: DefaultVersion,
Statements: []Statement{
NewStatement(
policy.Allow,
NewActionSet(PutObjectAction),
NewResourceSet(NewResource("mybucket", "/myobject*")),
condition.NewFunctions(),
),
},
}
case1Policy.Statements[0].SID = "SomeId1"
case2Data := []byte(`{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": "s3:PutObject",
"Resource": "arn:aws:s3:::mybucket/myobject*"
},
{
"Effect": "Deny",
"Action": "s3:GetObject",
"Resource": "arn:aws:s3:::mybucket/yourobject*",
"Condition": {
"IpAddress": {
"aws:SourceIp": "192.168.1.0/24"
}
}
}
]
}`)
_, IPNet1, err := net.ParseCIDR("192.168.1.0/24")
if err != nil {
t.Fatalf("unexpected error. %v\n", err)
}
func1, err := condition.NewIPAddressFunc(
condition.AWSSourceIP,
IPNet1,
)
if err != nil {
t.Fatalf("unexpected error. %v\n", err)
}
case2Policy := Policy{
Version: DefaultVersion,
Statements: []Statement{
NewStatement(
policy.Allow,
NewActionSet(PutObjectAction),
NewResourceSet(NewResource("mybucket", "/myobject*")),
condition.NewFunctions(),
),
NewStatement(
policy.Deny,
NewActionSet(GetObjectAction),
NewResourceSet(NewResource("mybucket", "/yourobject*")),
condition.NewFunctions(func1),
),
},
}
case3Data := []byte(`{
"ID": "MyPolicyForMyBucket1",
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": "s3:GetObject",
"Resource": "arn:aws:s3:::mybucket/myobject*"
},
{
"Effect": "Allow",
"Action": "s3:PutObject",
"Resource": "arn:aws:s3:::mybucket/myobject*"
}
]
}`)
case3Policy := Policy{
ID: "MyPolicyForMyBucket1",
Version: DefaultVersion,
Statements: []Statement{
NewStatement(
policy.Allow,
NewActionSet(GetObjectAction),
NewResourceSet(NewResource("mybucket", "/myobject*")),
condition.NewFunctions(),
),
NewStatement(
policy.Allow,
NewActionSet(PutObjectAction),
NewResourceSet(NewResource("mybucket", "/myobject*")),
condition.NewFunctions(),
),
},
}
case4Data := []byte(`{
"ID": "MyPolicyForMyBucket1",
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": "s3:PutObject",
"Resource": "arn:aws:s3:::mybucket/myobject*"
},
{
"Effect": "Allow",
"Action": "s3:GetObject",
"Resource": "arn:aws:s3:::mybucket/myobject*"
}
]
}`)
case4Policy := Policy{
ID: "MyPolicyForMyBucket1",
Version: DefaultVersion,
Statements: []Statement{
NewStatement(
policy.Allow,
NewActionSet(PutObjectAction),
NewResourceSet(NewResource("mybucket", "/myobject*")),
condition.NewFunctions(),
),
NewStatement(
policy.Allow,
NewActionSet(GetObjectAction),
NewResourceSet(NewResource("mybucket", "/myobject*")),
condition.NewFunctions(),
),
},
}
case5Data := []byte(`{
"ID": "MyPolicyForMyBucket1",
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": "s3:PutObject",
"Resource": "arn:aws:s3:::mybucket/myobject*"
},
{
"Effect": "Allow",
"Action": "s3:PutObject",
"Resource": "arn:aws:s3:::mybucket/yourobject*"
}
]
}`)
case5Policy := Policy{
ID: "MyPolicyForMyBucket1",
Version: DefaultVersion,
Statements: []Statement{
NewStatement(
policy.Allow,
NewActionSet(PutObjectAction),
NewResourceSet(NewResource("mybucket", "/myobject*")),
condition.NewFunctions(),
),
NewStatement(
policy.Allow,
NewActionSet(PutObjectAction),
NewResourceSet(NewResource("mybucket", "/yourobject*")),
condition.NewFunctions(),
),
},
}
case6Data := []byte(`{
"ID": "MyPolicyForMyBucket1",
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": "s3:PutObject",
"Resource": "arn:aws:s3:::mybucket/myobject*",
"Condition": {
"IpAddress": {
"aws:SourceIp": "192.168.1.0/24"
}
}
},
{
"Effect": "Allow",
"Action": "s3:PutObject",
"Resource": "arn:aws:s3:::mybucket/myobject*",
"Condition": {
"IpAddress": {
"aws:SourceIp": "192.168.2.0/24"
}
}
}
]
}`)
_, IPNet2, err := net.ParseCIDR("192.168.2.0/24")
if err != nil {
t.Fatalf("unexpected error. %v\n", err)
}
func2, err := condition.NewIPAddressFunc(
condition.AWSSourceIP,
IPNet2,
)
if err != nil {
t.Fatalf("unexpected error. %v\n", err)
}
case6Policy := Policy{
ID: "MyPolicyForMyBucket1",
Version: DefaultVersion,
Statements: []Statement{
NewStatement(
policy.Allow,
NewActionSet(PutObjectAction),
NewResourceSet(NewResource("mybucket", "/myobject*")),
condition.NewFunctions(func1),
),
NewStatement(
policy.Allow,
NewActionSet(PutObjectAction),
NewResourceSet(NewResource("mybucket", "/myobject*")),
condition.NewFunctions(func2),
),
},
}
case7Data := []byte(`{
"ID": "MyPolicyForMyBucket1",
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": "s3:GetBucketLocation",
"Resource": "arn:aws:s3:::mybucket"
}
]
}`)
case7Policy := Policy{
ID: "MyPolicyForMyBucket1",
Version: DefaultVersion,
Statements: []Statement{
NewStatement(
policy.Allow,
NewActionSet(GetBucketLocationAction),
NewResourceSet(NewResource("mybucket", "")),
condition.NewFunctions(),
),
},
}
case8Data := []byte(`{
"ID": "MyPolicyForMyBucket1",
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": "s3:GetBucketLocation",
"Resource": "arn:aws:s3:::*"
}
]
}`)
case8Policy := Policy{
ID: "MyPolicyForMyBucket1",
Version: DefaultVersion,
Statements: []Statement{
NewStatement(
policy.Allow,
NewActionSet(GetBucketLocationAction),
NewResourceSet(NewResource("*", "")),
condition.NewFunctions(),
),
},
}
case9Data := []byte(`{
"ID": "MyPolicyForMyBucket1",
"Version": "17-10-2012",
"Statement": [
{
"Effect": "Allow",
"Action": "s3:PutObject",
"Resource": "arn:aws:s3:::mybucket/myobject*"
}
]
}`)
case10Data := []byte(`{
"ID": "MyPolicyForMyBucket1",
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": "s3:PutObject",
"Resource": "arn:aws:s3:::mybucket/myobject*"
},
{
"Effect": "Allow",
"Action": "s3:PutObject",
"Resource": "arn:aws:s3:::mybucket/myobject*"
}
]
}`)
case10Policy := Policy{
ID: "MyPolicyForMyBucket1",
Version: DefaultVersion,
Statements: []Statement{
NewStatement(
policy.Allow,
NewActionSet(PutObjectAction),
NewResourceSet(NewResource("mybucket", "myobject*")),
condition.NewFunctions(),
),
},
}
case11Data := []byte(`{
"ID": "MyPolicyForMyBucket1",
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": "s3:PutObject",
"Resource": "arn:aws:s3:::mybucket/myobject*"
},
{
"Effect": "Deny",
"Action": "s3:PutObject",
"Resource": "arn:aws:s3:::mybucket/myobject*"
}
]
}`)
case11Policy := Policy{
ID: "MyPolicyForMyBucket1",
Version: DefaultVersion,
Statements: []Statement{
NewStatement(
policy.Allow,
NewActionSet(PutObjectAction),
NewResourceSet(NewResource("mybucket", "myobject*")),
condition.NewFunctions(),
),
NewStatement(
policy.Deny,
NewActionSet(PutObjectAction),
NewResourceSet(NewResource("mybucket", "myobject*")),
condition.NewFunctions(),
),
},
}
testCases := []struct {
data []byte
expectedResult Policy
expectUnmarshalErr bool
expectValidationErr bool
}{
{case1Data, case1Policy, false, false},
{case2Data, case2Policy, false, false},
{case3Data, case3Policy, false, false},
{case4Data, case4Policy, false, false},
{case5Data, case5Policy, false, false},
{case6Data, case6Policy, false, false},
{case7Data, case7Policy, false, false},
{case8Data, case8Policy, false, false},
// Invalid version error.
{case9Data, Policy{}, false, true},
// Duplicate statement success, duplicate statement is removed.
{case10Data, case10Policy, false, false},
// Duplicate statement success (Effect differs).
{case11Data, case11Policy, false, false},
}
for i, testCase := range testCases {
var result Policy
err := json.Unmarshal(testCase.data, &result)
expectErr := (err != nil)
if expectErr != testCase.expectUnmarshalErr {
t.Errorf("case %v: error during unmarshal: expected: %v, got: %v", i+1, testCase.expectUnmarshalErr, expectErr)
}
err = result.Validate()
expectErr = (err != nil)
if expectErr != testCase.expectValidationErr {
t.Errorf("case %v: error during validation: expected: %v, got: %v", i+1, testCase.expectValidationErr, expectErr)
}
if !testCase.expectUnmarshalErr && !testCase.expectValidationErr {
if !reflect.DeepEqual(result, testCase.expectedResult) {
t.Errorf("case %v: result: expected: %v, got: %v", i+1, testCase.expectedResult, result)
}
}
}
}
func TestPolicyValidate(t *testing.T) {
case1Policy := Policy{
Version: DefaultVersion,
Statements: []Statement{
NewStatement(
policy.Allow,
NewActionSet(PutObjectAction),
NewResourceSet(NewResource("", "")),
condition.NewFunctions(),
),
},
}
func1, err := condition.NewNullFunc(
condition.S3XAmzCopySource,
true,
)
if err != nil {
t.Fatalf("unexpected error. %v\n", err)
}
func2, err := condition.NewNullFunc(
condition.S3XAmzServerSideEncryption,
false,
)
if err != nil {
t.Fatalf("unexpected error. %v\n", err)
}
case2Policy := Policy{
ID: "MyPolicyForMyBucket1",
Version: DefaultVersion,
Statements: []Statement{
NewStatement(
policy.Allow,
NewActionSet(GetObjectAction, PutObjectAction),
NewResourceSet(NewResource("mybucket", "myobject*")),
condition.NewFunctions(func1, func2),
),
},
}
case3Policy := Policy{
ID: "MyPolicyForMyBucket1",
Version: DefaultVersion,
Statements: []Statement{
NewStatement(
policy.Allow,
NewActionSet(GetObjectAction, PutObjectAction),
NewResourceSet(NewResource("mybucket", "myobject*")),
condition.NewFunctions(),
),
},
}
testCases := []struct {
policy Policy
expectErr bool
}{
{case1Policy, true},
{case2Policy, true},
{case3Policy, false},
}
for i, testCase := range testCases {
err := testCase.policy.Validate()
expectErr := (err != nil)
if expectErr != testCase.expectErr {
t.Fatalf("case %v: error: expected: %v, got: %v", i+1, testCase.expectErr, expectErr)
}
}
}