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2c20716f37
also, bring in an additional policy to ensure that force delete bucket is only allowed with the right policy for the user, just DeleteBucketAction policy action is not enough.
303 lines
11 KiB
Go
303 lines
11 KiB
Go
/*
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* MinIO Cloud Storage, (C) 2018 MinIO, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package policy
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import (
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"encoding/json"
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"github.com/minio/minio/pkg/bucket/policy/condition"
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)
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// Action - policy action.
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// Refer https://docs.aws.amazon.com/IAM/latest/UserGuide/list_amazons3.html
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// for more information about available actions.
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type Action string
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const (
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// AbortMultipartUploadAction - AbortMultipartUpload Rest API action.
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AbortMultipartUploadAction Action = "s3:AbortMultipartUpload"
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// CreateBucketAction - CreateBucket Rest API action.
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CreateBucketAction = "s3:CreateBucket"
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// DeleteBucketAction - DeleteBucket Rest API action.
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DeleteBucketAction = "s3:DeleteBucket"
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// ForceDeleteBucketAction - DeleteBucket Rest API action when x-minio-force-delete flag
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// is specified.
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ForceDeleteBucketAction = "s3:ForceDeleteBucket"
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// DeleteBucketPolicyAction - DeleteBucketPolicy Rest API action.
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DeleteBucketPolicyAction = "s3:DeleteBucketPolicy"
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// DeleteObjectAction - DeleteObject Rest API action.
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DeleteObjectAction = "s3:DeleteObject"
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// GetBucketLocationAction - GetBucketLocation Rest API action.
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GetBucketLocationAction = "s3:GetBucketLocation"
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// GetBucketNotificationAction - GetBucketNotification Rest API action.
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GetBucketNotificationAction = "s3:GetBucketNotification"
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// GetBucketPolicyAction - GetBucketPolicy Rest API action.
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GetBucketPolicyAction = "s3:GetBucketPolicy"
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// GetObjectAction - GetObject Rest API action.
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GetObjectAction = "s3:GetObject"
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// HeadBucketAction - HeadBucket Rest API action. This action is unused in minio.
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HeadBucketAction = "s3:HeadBucket"
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// ListAllMyBucketsAction - ListAllMyBuckets (List buckets) Rest API action.
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ListAllMyBucketsAction = "s3:ListAllMyBuckets"
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// ListBucketAction - ListBucket Rest API action.
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ListBucketAction = "s3:ListBucket"
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// ListBucketMultipartUploadsAction - ListMultipartUploads Rest API action.
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ListBucketMultipartUploadsAction = "s3:ListBucketMultipartUploads"
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// ListenBucketNotificationAction - ListenBucketNotification Rest API action.
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// This is MinIO extension.
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ListenBucketNotificationAction = "s3:ListenBucketNotification"
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// ListMultipartUploadPartsAction - ListParts Rest API action.
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ListMultipartUploadPartsAction = "s3:ListMultipartUploadParts"
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// PutBucketNotificationAction - PutObjectNotification Rest API action.
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PutBucketNotificationAction = "s3:PutBucketNotification"
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// PutBucketPolicyAction - PutBucketPolicy Rest API action.
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PutBucketPolicyAction = "s3:PutBucketPolicy"
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// PutObjectAction - PutObject Rest API action.
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PutObjectAction = "s3:PutObject"
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// PutBucketLifecycleAction - PutBucketLifecycle Rest API action.
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PutBucketLifecycleAction = "s3:PutLifecycleConfiguration"
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// GetBucketLifecycleAction - GetBucketLifecycle Rest API action.
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GetBucketLifecycleAction = "s3:GetLifecycleConfiguration"
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// BypassGovernanceRetentionAction - bypass governance retention for PutObjectRetention, PutObject and DeleteObject Rest API action.
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BypassGovernanceRetentionAction = "s3:BypassGovernanceRetention"
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// PutObjectRetentionAction - PutObjectRetention Rest API action.
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PutObjectRetentionAction = "s3:PutObjectRetention"
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// GetObjectRetentionAction - GetObjectRetention, GetObject, HeadObject Rest API action.
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GetObjectRetentionAction = "s3:GetObjectRetention"
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// GetObjectLegalHoldAction - GetObjectLegalHold, GetObject Rest API action.
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GetObjectLegalHoldAction = "s3:GetObjectLegalHold"
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// PutObjectLegalHoldAction - PutObjectLegalHold, PutObject Rest API action.
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PutObjectLegalHoldAction = "s3:PutObjectLegalHold"
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// GetBucketObjectLockConfigurationAction - GetObjectLockConfiguration Rest API action
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GetBucketObjectLockConfigurationAction = "s3:GetBucketObjectLockConfiguration"
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// PutBucketObjectLockConfigurationAction - PutObjectLockConfiguration Rest API action
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PutBucketObjectLockConfigurationAction = "s3:PutBucketObjectLockConfiguration"
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// GetObjectTaggingAction - Get Object Tags API action
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GetObjectTaggingAction = "s3:GetObjectTagging"
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// PutObjectTaggingAction - Put Object Tags API action
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PutObjectTaggingAction = "s3:PutObjectTagging"
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// DeleteObjectTaggingAction - Delete Object Tags API action
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DeleteObjectTaggingAction = "s3:DeleteObjectTagging"
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// PutBucketEncryptionAction - PutBucketEncryption REST API action
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PutBucketEncryptionAction = "s3:PutEncryptionConfiguration"
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// GetBucketEncryptionAction - GetBucketEncryption REST API action
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GetBucketEncryptionAction = "s3:GetEncryptionConfiguration"
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)
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// List of all supported object actions.
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var supportedObjectActions = map[Action]struct{}{
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AbortMultipartUploadAction: {},
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DeleteObjectAction: {},
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GetObjectAction: {},
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ListMultipartUploadPartsAction: {},
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PutObjectAction: {},
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BypassGovernanceRetentionAction: {},
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PutObjectRetentionAction: {},
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GetObjectRetentionAction: {},
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PutObjectLegalHoldAction: {},
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GetObjectLegalHoldAction: {},
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GetObjectTaggingAction: {},
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PutObjectTaggingAction: {},
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DeleteObjectTaggingAction: {},
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}
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// isObjectAction - returns whether action is object type or not.
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func (action Action) isObjectAction() bool {
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_, ok := supportedObjectActions[action]
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return ok
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}
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// List of all supported actions.
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var supportedActions = map[Action]struct{}{
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AbortMultipartUploadAction: {},
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CreateBucketAction: {},
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DeleteBucketAction: {},
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ForceDeleteBucketAction: {},
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DeleteBucketPolicyAction: {},
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DeleteObjectAction: {},
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GetBucketLocationAction: {},
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GetBucketNotificationAction: {},
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GetBucketPolicyAction: {},
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GetObjectAction: {},
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HeadBucketAction: {},
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ListAllMyBucketsAction: {},
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ListBucketAction: {},
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ListBucketMultipartUploadsAction: {},
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ListenBucketNotificationAction: {},
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ListMultipartUploadPartsAction: {},
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PutBucketNotificationAction: {},
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PutBucketPolicyAction: {},
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PutObjectAction: {},
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GetBucketLifecycleAction: {},
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PutBucketLifecycleAction: {},
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PutObjectRetentionAction: {},
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GetObjectRetentionAction: {},
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GetObjectLegalHoldAction: {},
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PutObjectLegalHoldAction: {},
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PutBucketObjectLockConfigurationAction: {},
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GetBucketObjectLockConfigurationAction: {},
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BypassGovernanceRetentionAction: {},
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GetObjectTaggingAction: {},
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PutObjectTaggingAction: {},
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DeleteObjectTaggingAction: {},
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PutBucketEncryptionAction: {},
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GetBucketEncryptionAction: {},
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}
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// IsValid - checks if action is valid or not.
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func (action Action) IsValid() bool {
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_, ok := supportedActions[action]
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return ok
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}
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// MarshalJSON - encodes Action to JSON data.
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func (action Action) MarshalJSON() ([]byte, error) {
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if action.IsValid() {
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return json.Marshal(string(action))
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}
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return nil, Errorf("invalid action '%v'", action)
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}
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// UnmarshalJSON - decodes JSON data to Action.
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func (action *Action) UnmarshalJSON(data []byte) error {
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var s string
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if err := json.Unmarshal(data, &s); err != nil {
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return err
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}
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a := Action(s)
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if !a.IsValid() {
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return Errorf("invalid action '%v'", s)
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}
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*action = a
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return nil
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}
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func parseAction(s string) (Action, error) {
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action := Action(s)
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if action.IsValid() {
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return action, nil
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}
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return action, Errorf("unsupported action '%v'", s)
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}
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// actionConditionKeyMap - holds mapping of supported condition key for an action.
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var actionConditionKeyMap = map[Action]condition.KeySet{
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AbortMultipartUploadAction: condition.NewKeySet(condition.CommonKeys...),
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CreateBucketAction: condition.NewKeySet(condition.CommonKeys...),
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DeleteObjectAction: condition.NewKeySet(condition.CommonKeys...),
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GetBucketLocationAction: condition.NewKeySet(condition.CommonKeys...),
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GetObjectAction: condition.NewKeySet(
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append([]condition.Key{
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condition.S3XAmzServerSideEncryption,
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condition.S3XAmzServerSideEncryptionCustomerAlgorithm,
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condition.S3XAmzStorageClass,
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}, condition.CommonKeys...)...),
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HeadBucketAction: condition.NewKeySet(condition.CommonKeys...),
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ListAllMyBucketsAction: condition.NewKeySet(condition.CommonKeys...),
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ListBucketAction: condition.NewKeySet(
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append([]condition.Key{
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condition.S3Prefix,
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condition.S3Delimiter,
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condition.S3MaxKeys,
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}, condition.CommonKeys...)...),
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ListBucketMultipartUploadsAction: condition.NewKeySet(condition.CommonKeys...),
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ListMultipartUploadPartsAction: condition.NewKeySet(condition.CommonKeys...),
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PutObjectAction: condition.NewKeySet(
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append([]condition.Key{
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condition.S3XAmzCopySource,
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condition.S3XAmzServerSideEncryption,
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condition.S3XAmzServerSideEncryptionCustomerAlgorithm,
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condition.S3XAmzMetadataDirective,
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condition.S3XAmzStorageClass,
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condition.S3ObjectLockRetainUntilDate,
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condition.S3ObjectLockMode,
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condition.S3ObjectLockLegalHold,
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}, condition.CommonKeys...)...),
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// https://docs.aws.amazon.com/AmazonS3/latest/dev/list_amazons3.html
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// LockLegalHold is not supported with PutObjectRetentionAction
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PutObjectRetentionAction: condition.NewKeySet(
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append([]condition.Key{
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condition.S3ObjectLockRemainingRetentionDays,
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condition.S3ObjectLockRetainUntilDate,
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condition.S3ObjectLockMode,
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}, condition.CommonKeys...)...),
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GetObjectRetentionAction: condition.NewKeySet(condition.CommonKeys...),
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PutObjectLegalHoldAction: condition.NewKeySet(
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append([]condition.Key{
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condition.S3ObjectLockLegalHold,
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}, condition.CommonKeys...)...),
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GetObjectLegalHoldAction: condition.NewKeySet(condition.CommonKeys...),
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// https://docs.aws.amazon.com/AmazonS3/latest/dev/list_amazons3.html
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BypassGovernanceRetentionAction: condition.NewKeySet(
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append([]condition.Key{
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condition.S3ObjectLockRemainingRetentionDays,
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condition.S3ObjectLockRetainUntilDate,
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condition.S3ObjectLockMode,
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condition.S3ObjectLockLegalHold,
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}, condition.CommonKeys...)...),
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GetBucketObjectLockConfigurationAction: condition.NewKeySet(condition.CommonKeys...),
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PutBucketObjectLockConfigurationAction: condition.NewKeySet(condition.CommonKeys...),
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PutObjectTaggingAction: condition.NewKeySet(condition.CommonKeys...),
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GetObjectTaggingAction: condition.NewKeySet(condition.CommonKeys...),
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DeleteObjectTaggingAction: condition.NewKeySet(condition.CommonKeys...),
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}
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