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275 lines
9.4 KiB
275 lines
9.4 KiB
/*
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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 iampolicy
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import (
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"encoding/json"
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"fmt"
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"github.com/minio/minio/pkg/policy/condition"
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"github.com/minio/minio/pkg/wildcard"
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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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// 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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// PutBucketLifecycleAction - PutBucketLifecycle Rest API action.
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PutBucketLifecycleAction = "s3:PutBucketLifecycle"
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// GetBucketLifecycleAction - GetBucketLifecycle Rest API action.
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GetBucketLifecycleAction = "s3:GetBucketLifecycle"
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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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// BypassGovernanceModeAction - bypass governance mode for DeleteObject Rest API action.
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BypassGovernanceModeAction = "s3:BypassGovernanceMode"
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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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// GetBucketObjectLockConfigurationAction - GetBucketObjectLockConfiguration Rest API action
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GetBucketObjectLockConfigurationAction = "s3:GetBucketObjectLockConfiguration"
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// PutBucketObjectLockConfigurationAction - PutBucketObjectLockConfiguration Rest API action
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PutBucketObjectLockConfigurationAction = "s3:PutBucketObjectLockConfiguration"
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// AllActions - all API actions
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AllActions = "s3:*"
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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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AllActions: {},
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AbortMultipartUploadAction: {},
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CreateBucketAction: {},
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DeleteBucketAction: {},
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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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PutBucketObjectLockConfigurationAction: {},
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GetBucketObjectLockConfigurationAction: {},
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BypassGovernanceModeAction: {},
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BypassGovernanceRetentionAction: {},
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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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switch action {
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case AbortMultipartUploadAction, DeleteObjectAction, GetObjectAction:
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fallthrough
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case ListMultipartUploadPartsAction, PutObjectAction, AllActions:
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return true
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case BypassGovernanceModeAction, BypassGovernanceRetentionAction:
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return true
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case PutObjectRetentionAction, GetObjectRetentionAction:
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return true
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}
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return false
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}
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// Match - matches object name with resource pattern.
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func (action Action) Match(a Action) bool {
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return wildcard.Match(string(action), string(a))
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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() || AdminAction(action).IsValid() {
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return json.Marshal(string(action))
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}
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return nil, fmt.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 fmt.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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adminAction, err := parseAdminAction(s)
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if err == nil {
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return Action(adminAction), nil
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}
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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, fmt.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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AllActions: condition.NewKeySet(condition.AllSupportedKeys...),
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AbortMultipartUploadAction: condition.NewKeySet(condition.CommonKeys...),
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CreateBucketAction: condition.NewKeySet(condition.CommonKeys...),
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DeleteBucketPolicyAction: 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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GetBucketNotificationAction: condition.NewKeySet(condition.CommonKeys...),
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GetBucketPolicyAction: 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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ListenBucketNotificationAction: condition.NewKeySet(condition.CommonKeys...),
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ListMultipartUploadPartsAction: condition.NewKeySet(condition.CommonKeys...),
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PutBucketNotificationAction: condition.NewKeySet(condition.CommonKeys...),
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PutBucketPolicyAction: 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.CommonKeys...)...),
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PutObjectRetentionAction: condition.NewKeySet(condition.CommonKeys...),
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GetObjectRetentionAction: condition.NewKeySet(condition.CommonKeys...),
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BypassGovernanceModeAction: condition.NewKeySet(condition.CommonKeys...),
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BypassGovernanceRetentionAction: condition.NewKeySet(condition.CommonKeys...),
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GetBucketObjectLockConfigurationAction: condition.NewKeySet(condition.CommonKeys...),
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PutBucketObjectLockConfigurationAction: condition.NewKeySet(condition.CommonKeys...),
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}
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