mirror of
https://github.com/restic/restic.git
synced 2024-08-21 11:53:22 +02:00
233 lines
8.2 KiB
Go
233 lines
8.2 KiB
Go
/*
|
|
* Minio Go Library for Amazon S3 Compatible Cloud Storage
|
|
* Copyright 2015-2017 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 minio
|
|
|
|
import (
|
|
"encoding/xml"
|
|
"reflect"
|
|
)
|
|
|
|
// NotificationEventType is a S3 notification event associated to the bucket notification configuration
|
|
type NotificationEventType string
|
|
|
|
// The role of all event types are described in :
|
|
// http://docs.aws.amazon.com/AmazonS3/latest/dev/NotificationHowTo.html#notification-how-to-event-types-and-destinations
|
|
const (
|
|
ObjectCreatedAll NotificationEventType = "s3:ObjectCreated:*"
|
|
ObjectCreatedPut = "s3:ObjectCreated:Put"
|
|
ObjectCreatedPost = "s3:ObjectCreated:Post"
|
|
ObjectCreatedCopy = "s3:ObjectCreated:Copy"
|
|
ObjectCreatedCompleteMultipartUpload = "s3:ObjectCreated:CompleteMultipartUpload"
|
|
ObjectAccessedGet = "s3:ObjectAccessed:Get"
|
|
ObjectAccessedHead = "s3:ObjectAccessed:Head"
|
|
ObjectAccessedAll = "s3:ObjectAccessed:*"
|
|
ObjectRemovedAll = "s3:ObjectRemoved:*"
|
|
ObjectRemovedDelete = "s3:ObjectRemoved:Delete"
|
|
ObjectRemovedDeleteMarkerCreated = "s3:ObjectRemoved:DeleteMarkerCreated"
|
|
ObjectReducedRedundancyLostObject = "s3:ReducedRedundancyLostObject"
|
|
)
|
|
|
|
// FilterRule - child of S3Key, a tag in the notification xml which
|
|
// carries suffix/prefix filters
|
|
type FilterRule struct {
|
|
Name string `xml:"Name"`
|
|
Value string `xml:"Value"`
|
|
}
|
|
|
|
// S3Key - child of Filter, a tag in the notification xml which
|
|
// carries suffix/prefix filters
|
|
type S3Key struct {
|
|
FilterRules []FilterRule `xml:"FilterRule,omitempty"`
|
|
}
|
|
|
|
// Filter - a tag in the notification xml structure which carries
|
|
// suffix/prefix filters
|
|
type Filter struct {
|
|
S3Key S3Key `xml:"S3Key,omitempty"`
|
|
}
|
|
|
|
// Arn - holds ARN information that will be sent to the web service,
|
|
// ARN desciption can be found in http://docs.aws.amazon.com/general/latest/gr/aws-arns-and-namespaces.html
|
|
type Arn struct {
|
|
Partition string
|
|
Service string
|
|
Region string
|
|
AccountID string
|
|
Resource string
|
|
}
|
|
|
|
// NewArn creates new ARN based on the given partition, service, region, account id and resource
|
|
func NewArn(partition, service, region, accountID, resource string) Arn {
|
|
return Arn{Partition: partition,
|
|
Service: service,
|
|
Region: region,
|
|
AccountID: accountID,
|
|
Resource: resource}
|
|
}
|
|
|
|
// Return the string format of the ARN
|
|
func (arn Arn) String() string {
|
|
return "arn:" + arn.Partition + ":" + arn.Service + ":" + arn.Region + ":" + arn.AccountID + ":" + arn.Resource
|
|
}
|
|
|
|
// NotificationConfig - represents one single notification configuration
|
|
// such as topic, queue or lambda configuration.
|
|
type NotificationConfig struct {
|
|
ID string `xml:"Id,omitempty"`
|
|
Arn Arn `xml:"-"`
|
|
Events []NotificationEventType `xml:"Event"`
|
|
Filter *Filter `xml:"Filter,omitempty"`
|
|
}
|
|
|
|
// NewNotificationConfig creates one notification config and sets the given ARN
|
|
func NewNotificationConfig(arn Arn) NotificationConfig {
|
|
return NotificationConfig{Arn: arn}
|
|
}
|
|
|
|
// AddEvents adds one event to the current notification config
|
|
func (t *NotificationConfig) AddEvents(events ...NotificationEventType) {
|
|
t.Events = append(t.Events, events...)
|
|
}
|
|
|
|
// AddFilterSuffix sets the suffix configuration to the current notification config
|
|
func (t *NotificationConfig) AddFilterSuffix(suffix string) {
|
|
if t.Filter == nil {
|
|
t.Filter = &Filter{}
|
|
}
|
|
newFilterRule := FilterRule{Name: "suffix", Value: suffix}
|
|
// Replace any suffix rule if existing and add to the list otherwise
|
|
for index := range t.Filter.S3Key.FilterRules {
|
|
if t.Filter.S3Key.FilterRules[index].Name == "suffix" {
|
|
t.Filter.S3Key.FilterRules[index] = newFilterRule
|
|
return
|
|
}
|
|
}
|
|
t.Filter.S3Key.FilterRules = append(t.Filter.S3Key.FilterRules, newFilterRule)
|
|
}
|
|
|
|
// AddFilterPrefix sets the prefix configuration to the current notification config
|
|
func (t *NotificationConfig) AddFilterPrefix(prefix string) {
|
|
if t.Filter == nil {
|
|
t.Filter = &Filter{}
|
|
}
|
|
newFilterRule := FilterRule{Name: "prefix", Value: prefix}
|
|
// Replace any prefix rule if existing and add to the list otherwise
|
|
for index := range t.Filter.S3Key.FilterRules {
|
|
if t.Filter.S3Key.FilterRules[index].Name == "prefix" {
|
|
t.Filter.S3Key.FilterRules[index] = newFilterRule
|
|
return
|
|
}
|
|
}
|
|
t.Filter.S3Key.FilterRules = append(t.Filter.S3Key.FilterRules, newFilterRule)
|
|
}
|
|
|
|
// TopicConfig carries one single topic notification configuration
|
|
type TopicConfig struct {
|
|
NotificationConfig
|
|
Topic string `xml:"Topic"`
|
|
}
|
|
|
|
// QueueConfig carries one single queue notification configuration
|
|
type QueueConfig struct {
|
|
NotificationConfig
|
|
Queue string `xml:"Queue"`
|
|
}
|
|
|
|
// LambdaConfig carries one single cloudfunction notification configuration
|
|
type LambdaConfig struct {
|
|
NotificationConfig
|
|
Lambda string `xml:"CloudFunction"`
|
|
}
|
|
|
|
// BucketNotification - the struct that represents the whole XML to be sent to the web service
|
|
type BucketNotification struct {
|
|
XMLName xml.Name `xml:"NotificationConfiguration"`
|
|
LambdaConfigs []LambdaConfig `xml:"CloudFunctionConfiguration"`
|
|
TopicConfigs []TopicConfig `xml:"TopicConfiguration"`
|
|
QueueConfigs []QueueConfig `xml:"QueueConfiguration"`
|
|
}
|
|
|
|
// AddTopic adds a given topic config to the general bucket notification config
|
|
func (b *BucketNotification) AddTopic(topicConfig NotificationConfig) {
|
|
newTopicConfig := TopicConfig{NotificationConfig: topicConfig, Topic: topicConfig.Arn.String()}
|
|
for _, n := range b.TopicConfigs {
|
|
if reflect.DeepEqual(n, newTopicConfig) {
|
|
// Avoid adding duplicated entry
|
|
return
|
|
}
|
|
}
|
|
b.TopicConfigs = append(b.TopicConfigs, newTopicConfig)
|
|
}
|
|
|
|
// AddQueue adds a given queue config to the general bucket notification config
|
|
func (b *BucketNotification) AddQueue(queueConfig NotificationConfig) {
|
|
newQueueConfig := QueueConfig{NotificationConfig: queueConfig, Queue: queueConfig.Arn.String()}
|
|
for _, n := range b.QueueConfigs {
|
|
if reflect.DeepEqual(n, newQueueConfig) {
|
|
// Avoid adding duplicated entry
|
|
return
|
|
}
|
|
}
|
|
b.QueueConfigs = append(b.QueueConfigs, newQueueConfig)
|
|
}
|
|
|
|
// AddLambda adds a given lambda config to the general bucket notification config
|
|
func (b *BucketNotification) AddLambda(lambdaConfig NotificationConfig) {
|
|
newLambdaConfig := LambdaConfig{NotificationConfig: lambdaConfig, Lambda: lambdaConfig.Arn.String()}
|
|
for _, n := range b.LambdaConfigs {
|
|
if reflect.DeepEqual(n, newLambdaConfig) {
|
|
// Avoid adding duplicated entry
|
|
return
|
|
}
|
|
}
|
|
b.LambdaConfigs = append(b.LambdaConfigs, newLambdaConfig)
|
|
}
|
|
|
|
// RemoveTopicByArn removes all topic configurations that match the exact specified ARN
|
|
func (b *BucketNotification) RemoveTopicByArn(arn Arn) {
|
|
var topics []TopicConfig
|
|
for _, topic := range b.TopicConfigs {
|
|
if topic.Topic != arn.String() {
|
|
topics = append(topics, topic)
|
|
}
|
|
}
|
|
b.TopicConfigs = topics
|
|
}
|
|
|
|
// RemoveQueueByArn removes all queue configurations that match the exact specified ARN
|
|
func (b *BucketNotification) RemoveQueueByArn(arn Arn) {
|
|
var queues []QueueConfig
|
|
for _, queue := range b.QueueConfigs {
|
|
if queue.Queue != arn.String() {
|
|
queues = append(queues, queue)
|
|
}
|
|
}
|
|
b.QueueConfigs = queues
|
|
}
|
|
|
|
// RemoveLambdaByArn removes all lambda configurations that match the exact specified ARN
|
|
func (b *BucketNotification) RemoveLambdaByArn(arn Arn) {
|
|
var lambdas []LambdaConfig
|
|
for _, lambda := range b.LambdaConfigs {
|
|
if lambda.Lambda != arn.String() {
|
|
lambdas = append(lambdas, lambda)
|
|
}
|
|
}
|
|
b.LambdaConfigs = lambdas
|
|
}
|