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action.go
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action.go
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/*
* 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"
"github.com/minio/minio/pkg/bucket/policy/condition"
"github.com/minio/minio/pkg/wildcard"
)
// Action - policy action.
// Refer https://docs.aws.amazon.com/IAM/latest/UserGuide/list_amazons3.html
// for more information about available actions.
type Action string
const (
// AbortMultipartUploadAction - AbortMultipartUpload Rest API action.
AbortMultipartUploadAction Action = "s3:AbortMultipartUpload"
// CreateBucketAction - CreateBucket Rest API action.
CreateBucketAction = "s3:CreateBucket"
// DeleteBucketAction - DeleteBucket Rest API action.
DeleteBucketAction = "s3:DeleteBucket"
// DeleteBucketPolicyAction - DeleteBucketPolicy Rest API action.
DeleteBucketPolicyAction = "s3:DeleteBucketPolicy"
// DeleteObjectAction - DeleteObject Rest API action.
DeleteObjectAction = "s3:DeleteObject"
// GetBucketLocationAction - GetBucketLocation Rest API action.
GetBucketLocationAction = "s3:GetBucketLocation"
// GetBucketNotificationAction - GetBucketNotification Rest API action.
GetBucketNotificationAction = "s3:GetBucketNotification"
// GetBucketPolicyAction - GetBucketPolicy Rest API action.
GetBucketPolicyAction = "s3:GetBucketPolicy"
// GetObjectAction - GetObject Rest API action.
GetObjectAction = "s3:GetObject"
// HeadBucketAction - HeadBucket Rest API action. This action is unused in minio.
HeadBucketAction = "s3:HeadBucket"
// ListAllMyBucketsAction - ListAllMyBuckets (List buckets) Rest API action.
ListAllMyBucketsAction = "s3:ListAllMyBuckets"
// ListBucketAction - ListBucket Rest API action.
ListBucketAction = "s3:ListBucket"
// ListBucketMultipartUploadsAction - ListMultipartUploads Rest API action.
ListBucketMultipartUploadsAction = "s3:ListBucketMultipartUploads"
// ListenBucketNotificationAction - ListenBucketNotification Rest API action.
// This is MinIO extension.
ListenBucketNotificationAction = "s3:ListenBucketNotification"
// ListMultipartUploadPartsAction - ListParts Rest API action.
ListMultipartUploadPartsAction = "s3:ListMultipartUploadParts"
// PutBucketLifecycleAction - PutBucketLifecycle Rest API action.
PutBucketLifecycleAction = "s3:PutBucketLifecycle"
// GetBucketLifecycleAction - GetBucketLifecycle Rest API action.
GetBucketLifecycleAction = "s3:GetBucketLifecycle"
// PutBucketNotificationAction - PutObjectNotification Rest API action.
PutBucketNotificationAction = "s3:PutBucketNotification"
// PutBucketPolicyAction - PutBucketPolicy Rest API action.
PutBucketPolicyAction = "s3:PutBucketPolicy"
// PutObjectAction - PutObject Rest API action.
PutObjectAction = "s3:PutObject"
// BypassGovernanceModeAction - bypass governance mode for DeleteObject Rest API action.
BypassGovernanceModeAction = "s3:BypassGovernanceMode"
// BypassGovernanceRetentionAction - bypass governance retention for PutObjectRetention, PutObject and DeleteObject Rest API action.
BypassGovernanceRetentionAction = "s3:BypassGovernanceRetention"
// PutObjectRetentionAction - PutObjectRetention Rest API action.
PutObjectRetentionAction = "s3:PutObjectRetention"
// GetObjectRetentionAction - GetObjectRetention, GetObject, HeadObject Rest API action.
GetObjectRetentionAction = "s3:GetObjectRetention"
// GetObjectLegalHoldAction - GetObjectLegalHold, GetObject Rest API action.
GetObjectLegalHoldAction = "s3:GetObjectLegalHold"
// PutObjectLegalHoldAction - PutObjectLegalHold, PutObject Rest API action.
PutObjectLegalHoldAction = "s3:PutObjectLegalHold"
// GetBucketObjectLockConfigurationAction - GetBucketObjectLockConfiguration Rest API action
GetBucketObjectLockConfigurationAction = "s3:GetBucketObjectLockConfiguration"
// PutBucketObjectLockConfigurationAction - PutBucketObjectLockConfiguration Rest API action
PutBucketObjectLockConfigurationAction = "s3:PutBucketObjectLockConfiguration"
// GetObjectTaggingAction - Get Object Tags API action
GetObjectTaggingAction = "s3:GetObjectTagging"
// PutObjectTaggingAction - Put Object Tags API action
PutObjectTaggingAction = "s3:PutObjectTagging"
// DeleteObjectTaggingAction - Delete Object Tags API action
DeleteObjectTaggingAction = "s3:DeleteObjectTagging"
// PutBucketEncryptionAction - PutBucketEncryption REST API action
PutBucketEncryptionAction = "s3:PutEncryptionConfiguration"
// GetBucketEncryptionAction - GetBucketEncryption REST API action
GetBucketEncryptionAction = "s3:GetEncryptionConfiguration"
// AllActions - all API actions
AllActions = "s3:*"
)
// List of all supported actions.
var supportedActions = map[Action]struct{}{
AllActions: {},
AbortMultipartUploadAction: {},
CreateBucketAction: {},
DeleteBucketAction: {},
DeleteBucketPolicyAction: {},
DeleteObjectAction: {},
GetBucketLocationAction: {},
GetBucketNotificationAction: {},
GetBucketPolicyAction: {},
GetObjectAction: {},
HeadBucketAction: {},
ListAllMyBucketsAction: {},
ListBucketAction: {},
ListBucketMultipartUploadsAction: {},
ListenBucketNotificationAction: {},
ListMultipartUploadPartsAction: {},
PutBucketNotificationAction: {},
PutBucketPolicyAction: {},
PutObjectAction: {},
GetBucketLifecycleAction: {},
PutBucketLifecycleAction: {},
PutObjectRetentionAction: {},
GetObjectRetentionAction: {},
GetObjectLegalHoldAction: {},
PutObjectLegalHoldAction: {},
PutBucketObjectLockConfigurationAction: {},
GetBucketObjectLockConfigurationAction: {},
BypassGovernanceModeAction: {},
BypassGovernanceRetentionAction: {},
GetObjectTaggingAction: {},
PutObjectTaggingAction: {},
DeleteObjectTaggingAction: {},
PutBucketEncryptionAction: {},
GetBucketEncryptionAction: {},
}
// List of all supported object actions.
var supportedObjectActions = map[Action]struct{}{
AllActions: {},
AbortMultipartUploadAction: {},
DeleteObjectAction: {},
GetObjectAction: {},
ListMultipartUploadPartsAction: {},
PutObjectAction: {},
BypassGovernanceModeAction: {},
BypassGovernanceRetentionAction: {},
PutObjectRetentionAction: {},
GetObjectRetentionAction: {},
PutObjectLegalHoldAction: {},
GetObjectLegalHoldAction: {},
GetObjectTaggingAction: {},
PutObjectTaggingAction: {},
DeleteObjectTaggingAction: {},
}
// isObjectAction - returns whether action is object type or not.
func (action Action) isObjectAction() bool {
_, ok := supportedObjectActions[action]
return ok
}
// Match - matches object name with resource pattern.
func (action Action) Match(a Action) bool {
return wildcard.Match(string(action), string(a))
}
// IsValid - checks if action is valid or not.
func (action Action) IsValid() bool {
_, ok := supportedActions[action]
return ok
}
// MarshalJSON - encodes Action to JSON data.
func (action Action) MarshalJSON() ([]byte, error) {
if action.IsValid() || AdminAction(action).IsValid() {
return json.Marshal(string(action))
}
return nil, Errorf("invalid action '%v'", action)
}
// UnmarshalJSON - decodes JSON data to Action.
func (action *Action) UnmarshalJSON(data []byte) error {
var s string
if err := json.Unmarshal(data, &s); err != nil {
return err
}
a := Action(s)
if !a.IsValid() {
return Errorf("invalid action '%v'", s)
}
*action = a
return nil
}
func parseAction(s string) (Action, error) {
adminAction, err := parseAdminAction(s)
if err == nil {
return Action(adminAction), nil
}
action := Action(s)
if action.IsValid() {
return action, nil
}
return action, Errorf("unsupported action '%v'", s)
}
// actionConditionKeyMap - holds mapping of supported condition key for an action.
var actionConditionKeyMap = map[Action]condition.KeySet{
AllActions: condition.NewKeySet(condition.AllSupportedKeys...),
AbortMultipartUploadAction: condition.NewKeySet(condition.CommonKeys...),
CreateBucketAction: condition.NewKeySet(condition.CommonKeys...),
DeleteBucketPolicyAction: condition.NewKeySet(condition.CommonKeys...),
DeleteObjectAction: condition.NewKeySet(condition.CommonKeys...),
GetBucketLocationAction: condition.NewKeySet(condition.CommonKeys...),
GetBucketNotificationAction: condition.NewKeySet(condition.CommonKeys...),
GetBucketPolicyAction: condition.NewKeySet(condition.CommonKeys...),
GetObjectAction: condition.NewKeySet(
append([]condition.Key{
condition.S3XAmzServerSideEncryption,
condition.S3XAmzServerSideEncryptionCustomerAlgorithm,
condition.S3XAmzStorageClass,
}, condition.CommonKeys...)...),
HeadBucketAction: condition.NewKeySet(condition.CommonKeys...),
ListAllMyBucketsAction: condition.NewKeySet(condition.CommonKeys...),
ListBucketAction: condition.NewKeySet(
append([]condition.Key{
condition.S3Prefix,
condition.S3Delimiter,
condition.S3MaxKeys,
}, condition.CommonKeys...)...),
ListBucketMultipartUploadsAction: condition.NewKeySet(condition.CommonKeys...),
ListenBucketNotificationAction: condition.NewKeySet(condition.CommonKeys...),
ListMultipartUploadPartsAction: condition.NewKeySet(condition.CommonKeys...),
PutBucketNotificationAction: condition.NewKeySet(condition.CommonKeys...),
PutBucketPolicyAction: condition.NewKeySet(condition.CommonKeys...),
PutObjectAction: condition.NewKeySet(
append([]condition.Key{
condition.S3XAmzCopySource,
condition.S3XAmzServerSideEncryption,
condition.S3XAmzServerSideEncryptionCustomerAlgorithm,
condition.S3XAmzMetadataDirective,
condition.S3XAmzStorageClass,
}, condition.CommonKeys...)...),
PutObjectRetentionAction: condition.NewKeySet(condition.CommonKeys...),
GetObjectRetentionAction: condition.NewKeySet(condition.CommonKeys...),
PutObjectLegalHoldAction: condition.NewKeySet(condition.CommonKeys...),
GetObjectLegalHoldAction: condition.NewKeySet(condition.CommonKeys...),
BypassGovernanceModeAction: condition.NewKeySet(condition.CommonKeys...),
BypassGovernanceRetentionAction: condition.NewKeySet(condition.CommonKeys...),
GetBucketObjectLockConfigurationAction: condition.NewKeySet(condition.CommonKeys...),
PutBucketObjectLockConfigurationAction: condition.NewKeySet(condition.CommonKeys...),
PutObjectTaggingAction: condition.NewKeySet(condition.CommonKeys...),
GetObjectTaggingAction: condition.NewKeySet(condition.CommonKeys...),
DeleteObjectTaggingAction: condition.NewKeySet(condition.CommonKeys...),
}